Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking changes from David Miller:

1) Allow to dump, monitor, and change the bridge multicast database
   using netlink.  From Cong Wang.

2) RFC 5961 TCP blind data injection attack mitigation, from Eric
   Dumazet.

3) Networking user namespace support from Eric W. Biederman.

4) tuntap/virtio-net multiqueue support by Jason Wang.

5) Support for checksum offload of encapsulated packets (basically,
   tunneled traffic can still be checksummed by HW).  From Joseph
   Gasparakis.

6) Allow BPF filter access to VLAN tags, from Eric Dumazet and
   Daniel Borkmann.

7) Bridge port parameters over netlink and BPDU blocking support
   from Stephen Hemminger.

8) Improve data access patterns during inet socket demux by rearranging
   socket layout, from Eric Dumazet.

9) TIPC protocol updates and cleanups from Ying Xue, Paul Gortmaker, and
   Jon Maloy.

10) Update TCP socket hash sizing to be more in line with current day
    realities.  The existing heurstics were choosen a decade ago.
    From Eric Dumazet.

11) Fix races, queue bloat, and excessive wakeups in ATM and
    associated drivers, from Krzysztof Mazur and David Woodhouse.

12) Support DOVE (Distributed Overlay Virtual Ethernet) extensions
    in VXLAN driver, from David Stevens.

13) Add "oops_only" mode to netconsole, from Amerigo Wang.

14) Support set and query of VEB/VEPA bridge mode via PF_BRIDGE, also
    allow DCB netlink to work on namespaces other than the initial
    namespace.  From John Fastabend.

15) Support PTP in the Tigon3 driver, from Matt Carlson.

16) tun/vhost zero copy fixes and improvements, plus turn it on
    by default, from Michael S. Tsirkin.

17) Support per-association statistics in SCTP, from Michele
    Baldessari.

And many, many, driver updates, cleanups, and improvements.  Too
numerous to mention individually.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  net/mlx4_en: Add support for destination MAC in steering rules
  net/mlx4_en: Use generic etherdevice.h functions.
  net: ethtool: Add destination MAC address to flow steering API
  bridge: add support of adding and deleting mdb entries
  bridge: notify mdb changes via netlink
  ndisc: Unexport ndisc_{build,send}_skb().
  uapi: add missing netconf.h to export list
  pkt_sched: avoid requeues if possible
  solos-pci: fix double-free of TX skb in DMA mode
  bnx2: Fix accidental reversions.
  bna: Driver Version Updated to 3.1.2.1
  bna: Firmware update
  bna: Add RX State
  bna: Rx Page Based Allocation
  bna: TX Intr Coalescing Fix
  bna: Tx and Rx Optimizations
  bna: Code Cleanup and Enhancements
  ath9k: check pdata variable before dereferencing it
  ath5k: RX timestamp is reported at end of frame
  ath9k_htc: RX timestamp is reported at end of frame
  ...

352 files changed, 21632 insertions, 6847 deletions

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index ee07072..a292e80 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -242,6 +242,7 @@ static int register_vlan_device(struct net_device *real_dev, u16 vlan_id)
 	 * hope the underlying device can handle it.
 	 */
 	new_dev->mtu = real_dev->mtu;
+	new_dev->priv_flags |= (real_dev->priv_flags & IFF_UNICAST_FLT);
 
 	vlan_dev_priv(new_dev)->vlan_id = vlan_id;
 	vlan_dev_priv(new_dev)->real_dev = real_dev;
@@ -294,7 +295,7 @@ static void vlan_transfer_features(struct net_device *dev,
 	else
 		vlandev->hard_header_len = dev->hard_header_len + VLAN_HLEN;
 
-#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+#if IS_ENABLED(CONFIG_FCOE)
 	vlandev->fcoe_ddp_xid = dev->fcoe_ddp_xid;
 #endif
 
@@ -529,7 +530,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
 	switch (args.cmd) {
 	case SET_VLAN_INGRESS_PRIORITY_CMD:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			break;
 		vlan_dev_set_ingress_priority(dev,
 					      args.u.skb_priority,
@@ -539,7 +540,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
 
 	case SET_VLAN_EGRESS_PRIORITY_CMD:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			break;
 		err = vlan_dev_set_egress_priority(dev,
 						   args.u.skb_priority,
@@ -548,7 +549,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
 
 	case SET_VLAN_FLAG_CMD:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			break;
 		err = vlan_dev_change_flags(dev,
 					    args.vlan_qos ? args.u.flag : 0,
@@ -557,7 +558,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
 
 	case SET_VLAN_NAME_TYPE_CMD:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			break;
 		if ((args.u.name_type >= 0) &&
 		    (args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) {
@@ -573,14 +574,14 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
 
 	case ADD_VLAN_CMD:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			break;
 		err = register_vlan_device(dev, args.u.VID);
 		break;
 
 	case DEL_VLAN_CMD:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			break;
 		unregister_vlan_dev(dev, NULL);
 		err = 0;
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 4024424..4a6d31a 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -409,7 +409,7 @@ static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa)
 	return err;
 }
 
-#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+#if IS_ENABLED(CONFIG_FCOE)
 static int vlan_dev_fcoe_ddp_setup(struct net_device *dev, u16 xid,
 				   struct scatterlist *sgl, unsigned int sgc)
 {
@@ -531,6 +531,10 @@ static const struct header_ops vlan_header_ops = {
 	.parse	 = eth_header_parse,
 };
 
+static struct device_type vlan_type = {
+	.name	= "vlan",
+};
+
 static const struct net_device_ops vlan_netdev_ops;
 
 static int vlan_dev_init(struct net_device *dev)
@@ -564,7 +568,7 @@ static int vlan_dev_init(struct net_device *dev)
 	if (is_zero_ether_addr(dev->broadcast))
 		memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
 
-#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+#if IS_ENABLED(CONFIG_FCOE)
 	dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid;
 #endif
 
@@ -579,6 +583,8 @@ static int vlan_dev_init(struct net_device *dev)
 
 	dev->netdev_ops = &vlan_netdev_ops;
 
+	SET_NETDEV_DEVTYPE(dev, &vlan_type);
+
 	if (is_vlan_dev(real_dev))
 		subclass = 1;
 
@@ -741,7 +747,7 @@ static const struct net_device_ops vlan_netdev_ops = {
 	.ndo_do_ioctl		= vlan_dev_ioctl,
 	.ndo_neigh_setup	= vlan_dev_neigh_setup,
 	.ndo_get_stats64	= vlan_dev_get_stats64,
-#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+#if IS_ENABLED(CONFIG_FCOE)
 	.ndo_fcoe_ddp_setup	= vlan_dev_fcoe_ddp_setup,
 	.ndo_fcoe_ddp_done	= vlan_dev_fcoe_ddp_done,
 	.ndo_fcoe_enable	= vlan_dev_fcoe_enable,
diff --git a/net/atm/br2684.c b/net/atm/br2684.c
index 4819d315..403e71f 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -68,12 +68,15 @@ struct br2684_vcc {
 	/* keep old push, pop functions for chaining */
 	void (*old_push)(struct atm_vcc *vcc, struct sk_buff *skb);
 	void (*old_pop)(struct atm_vcc *vcc, struct sk_buff *skb);
+	void (*old_release_cb)(struct atm_vcc *vcc);
+	struct module *old_owner;
 	enum br2684_encaps encaps;
 	struct list_head brvccs;
 #ifdef CONFIG_ATM_BR2684_IPFILTER
 	struct br2684_filter filter;
 #endif /* CONFIG_ATM_BR2684_IPFILTER */
 	unsigned int copies_needed, copies_failed;
+	atomic_t qspace;
 };
 
 struct br2684_dev {
@@ -181,18 +184,15 @@ static struct notifier_block atm_dev_notifier = {
 static void br2684_pop(struct atm_vcc *vcc, struct sk_buff *skb)
 {
 	struct br2684_vcc *brvcc = BR2684_VCC(vcc);
-	struct net_device *net_dev = skb->dev;
 
-	pr_debug("(vcc %p ; net_dev %p )\n", vcc, net_dev);
+	pr_debug("(vcc %p ; net_dev %p )\n", vcc, brvcc->device);
 	brvcc->old_pop(vcc, skb);
 
-	if (!net_dev)
-		return;
-
-	if (atm_may_send(vcc, 0))
-		netif_wake_queue(net_dev);
-
+	/* If the queue space just went up from zero, wake */
+	if (atomic_inc_return(&brvcc->qspace) == 1)
+		netif_wake_queue(brvcc->device);
 }
+
 /*
  * Send a packet out a particular vcc.  Not to useful right now, but paves
  * the way for multiple vcc's per itf.  Returns true if we can send,
@@ -256,16 +256,30 @@ static int br2684_xmit_vcc(struct sk_buff *skb, struct net_device *dev,
 	ATM_SKB(skb)->atm_options = atmvcc->atm_options;
 	dev->stats.tx_packets++;
 	dev->stats.tx_bytes += skb->len;
-	atmvcc->send(atmvcc, skb);
 
-	if (!atm_may_send(atmvcc, 0)) {
+	if (atomic_dec_return(&brvcc->qspace) < 1) {
+		/* No more please! */
 		netif_stop_queue(brvcc->device);
-		/*check for race with br2684_pop*/
-		if (atm_may_send(atmvcc, 0))
-			netif_start_queue(brvcc->device);
+		/* We might have raced with br2684_pop() */
+		if (unlikely(atomic_read(&brvcc->qspace) > 0))
+			netif_wake_queue(brvcc->device);
 	}
 
-	return 1;
+	/* If this fails immediately, the skb will be freed and br2684_pop()
+	   will wake the queue if appropriate. Just return an error so that
+	   the stats are updated correctly */
+	return !atmvcc->send(atmvcc, skb);
+}
+
+static void br2684_release_cb(struct atm_vcc *atmvcc)
+{
+	struct br2684_vcc *brvcc = BR2684_VCC(atmvcc);
+
+	if (atomic_read(&brvcc->qspace) > 0)
+		netif_wake_queue(brvcc->device);
+
+	if (brvcc->old_release_cb)
+		brvcc->old_release_cb(atmvcc);
 }
 
 static inline struct br2684_vcc *pick_outgoing_vcc(const struct sk_buff *skb,
@@ -279,6 +293,8 @@ static netdev_tx_t br2684_start_xmit(struct sk_buff *skb,
 {
 	struct br2684_dev *brdev = BRPRIV(dev);
 	struct br2684_vcc *brvcc;
+	struct atm_vcc *atmvcc;
+	netdev_tx_t ret = NETDEV_TX_OK;
 
 	pr_debug("skb_dst(skb)=%p\n", skb_dst(skb));
 	read_lock(&devs_lock);
@@ -289,9 +305,26 @@ static netdev_tx_t br2684_start_xmit(struct sk_buff *skb,
 		dev->stats.tx_carrier_errors++;
 		/* netif_stop_queue(dev); */
 		dev_kfree_skb(skb);
-		read_unlock(&devs_lock);
-		return NETDEV_TX_OK;
+		goto out_devs;
 	}
+	atmvcc = brvcc->atmvcc;
+
+	bh_lock_sock(sk_atm(atmvcc));
+
+	if (test_bit(ATM_VF_RELEASED, &atmvcc->flags) ||
+	    test_bit(ATM_VF_CLOSE, &atmvcc->flags) ||
+	    !test_bit(ATM_VF_READY, &atmvcc->flags)) {
+		dev->stats.tx_dropped++;
+		dev_kfree_skb(skb);
+		goto out;
+	}
+
+	if (sock_owned_by_user(sk_atm(atmvcc))) {
+		netif_stop_queue(brvcc->device);
+		ret = NETDEV_TX_BUSY;
+		goto out;
+	}
+
 	if (!br2684_xmit_vcc(skb, dev, brvcc)) {
 		/*
 		 * We should probably use netif_*_queue() here, but that
@@ -303,8 +336,11 @@ static netdev_tx_t br2684_start_xmit(struct sk_buff *skb,
 		dev->stats.tx_errors++;
 		dev->stats.tx_fifo_errors++;
 	}
+ out:
+	bh_unlock_sock(sk_atm(atmvcc));
+ out_devs:
 	read_unlock(&devs_lock);
-	return NETDEV_TX_OK;
+	return ret;
 }
 
 /*
@@ -377,9 +413,10 @@ static void br2684_close_vcc(struct br2684_vcc *brvcc)
 	list_del(&brvcc->brvccs);
 	write_unlock_irq(&devs_lock);
 	brvcc->atmvcc->user_back = NULL;	/* what about vcc->recvq ??? */
+	brvcc->atmvcc->release_cb = brvcc->old_release_cb;
 	brvcc->old_push(brvcc->atmvcc, NULL);	/* pass on the bad news */
+	module_put(brvcc->old_owner);
 	kfree(brvcc);
-	module_put(THIS_MODULE);
 }
 
 /* when AAL5 PDU comes in: */
@@ -504,6 +541,13 @@ static int br2684_regvcc(struct atm_vcc *atmvcc, void __user * arg)
 	brvcc = kzalloc(sizeof(struct br2684_vcc), GFP_KERNEL);
 	if (!brvcc)
 		return -ENOMEM;
+	/*
+	 * Allow two packets in the ATM queue. One actually being sent, and one
+	 * for the ATM 'TX done' handler to send. It shouldn't take long to get
+	 * the next one from the netdev queue, when we need it. More than that
+	 * would be bufferbloat.
+	 */
+	atomic_set(&brvcc->qspace, 2);
 	write_lock_irq(&devs_lock);
 	net_dev = br2684_find_dev(&be.ifspec);
 	if (net_dev == NULL) {
@@ -546,9 +590,13 @@ static int br2684_regvcc(struct atm_vcc *atmvcc, void __user * arg)
 	brvcc->encaps = (enum br2684_encaps)be.encaps;
 	brvcc->old_push = atmvcc->push;
 	brvcc->old_pop = atmvcc->pop;
+	brvcc->old_release_cb = atmvcc->release_cb;
+	brvcc->old_owner = atmvcc->owner;
 	barrier();
 	atmvcc->push = br2684_push;
 	atmvcc->pop = br2684_pop;
+	atmvcc->release_cb = br2684_release_cb;
+	atmvcc->owner = THIS_MODULE;
 
 	/* initialize netdev carrier state */
 	if (atmvcc->dev->signal == ATM_PHY_SIG_LOST)
@@ -687,10 +735,13 @@ static int br2684_ioctl(struct socket *sock, unsigned int cmd,
 			return -ENOIOCTLCMD;
 		if (!capable(CAP_NET_ADMIN))
 			return -EPERM;
-		if (cmd == ATM_SETBACKEND)
+		if (cmd == ATM_SETBACKEND) {
+			if (sock->state != SS_CONNECTED)
+				return -EINVAL;
 			return br2684_regvcc(atmvcc, argp);
-		else
+		} else {
 			return br2684_create(argp);
+		}
 #ifdef CONFIG_ATM_BR2684_IPFILTER
 	case BR2684_SETFILT:
 		if (atmvcc->push != br2684_push)
diff --git a/net/atm/common.c b/net/atm/common.c
index 0c0ad93..806fc0a 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -126,10 +126,19 @@ static void vcc_write_space(struct sock *sk)
 	rcu_read_unlock();
 }
 
+static void vcc_release_cb(struct sock *sk)
+{
+	struct atm_vcc *vcc = atm_sk(sk);
+
+	if (vcc->release_cb)
+		vcc->release_cb(vcc);
+}
+
 static struct proto vcc_proto = {
 	.name	  = "VCC",
 	.owner	  = THIS_MODULE,
 	.obj_size = sizeof(struct atm_vcc),
+	.release_cb = vcc_release_cb,
 };
 
 int vcc_create(struct net *net, struct socket *sock, int protocol, int family)
@@ -156,7 +165,9 @@ int vcc_create(struct net *net, struct socket *sock, int protocol, int family)
 	atomic_set(&sk->sk_rmem_alloc, 0);
 	vcc->push = NULL;
 	vcc->pop = NULL;
+	vcc->owner = NULL;
 	vcc->push_oam = NULL;
+	vcc->release_cb = NULL;
 	vcc->vpi = vcc->vci = 0; /* no VCI/VPI yet */
 	vcc->atm_options = vcc->aal_options = 0;
 	sk->sk_destruct = vcc_sock_destruct;
@@ -175,6 +186,7 @@ static void vcc_destroy_socket(struct sock *sk)
 			vcc->dev->ops->close(vcc);
 		if (vcc->push)
 			vcc->push(vcc, NULL); /* atmarpd has no push */
+		module_put(vcc->owner);
 
 		while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) {
 			atm_return(vcc, skb->truesize);
diff --git a/net/atm/pppoatm.c b/net/atm/pppoatm.c
index 226dca9..8c93267 100644
--- a/net/atm/pppoatm.c
+++ b/net/atm/pppoatm.c
@@ -60,6 +60,8 @@ struct pppoatm_vcc {
 	struct atm_vcc	*atmvcc;	/* VCC descriptor */
 	void (*old_push)(struct atm_vcc *, struct sk_buff *);
 	void (*old_pop)(struct atm_vcc *, struct sk_buff *);
+	void (*old_release_cb)(struct atm_vcc *);
+	struct module *old_owner;
 					/* keep old push/pop for detaching */
 	enum pppoatm_encaps encaps;
 	atomic_t inflight;
@@ -107,6 +109,24 @@ static void pppoatm_wakeup_sender(unsigned long arg)
 	ppp_output_wakeup((struct ppp_channel *) arg);
 }
 
+static void pppoatm_release_cb(struct atm_vcc *atmvcc)
+{
+	struct pppoatm_vcc *pvcc = atmvcc_to_pvcc(atmvcc);
+
+	/*
+	 * As in pppoatm_pop(), it's safe to clear the BLOCKED bit here because
+	 * the wakeup *can't* race with pppoatm_send(). They both hold the PPP
+	 * channel's ->downl lock. And the potential race with *setting* it,
+	 * which leads to the double-check dance in pppoatm_may_send(), doesn't
+	 * exist here. In the sock_owned_by_user() case in pppoatm_send(), we
+	 * set the BLOCKED bit while the socket is still locked. We know that
+	 * ->release_cb() can't be called until that's done.
+	 */
+	if (test_and_clear_bit(BLOCKED, &pvcc->blocked))
+		tasklet_schedule(&pvcc->wakeup_tasklet);
+	if (pvcc->old_release_cb)
+		pvcc->old_release_cb(atmvcc);
+}
 /*
  * This gets called every time the ATM card has finished sending our
  * skb.  The ->old_pop will take care up normal atm flow control,
@@ -151,12 +171,11 @@ static void pppoatm_unassign_vcc(struct atm_vcc *atmvcc)
 	pvcc = atmvcc_to_pvcc(atmvcc);
 	atmvcc->push = pvcc->old_push;
 	atmvcc->pop = pvcc->old_pop;
+	atmvcc->release_cb = pvcc->old_release_cb;
 	tasklet_kill(&pvcc->wakeup_tasklet);
 	ppp_unregister_channel(&pvcc->chan);
 	atmvcc->user_back = NULL;
 	kfree(pvcc);
-	/* Gee, I hope we have the big kernel lock here... */
-	module_put(THIS_MODULE);
 }
 
 /* Called when an AAL5 PDU comes in */
@@ -165,9 +184,13 @@ static void pppoatm_push(struct atm_vcc *atmvcc, struct sk_buff *skb)
 	struct pppoatm_vcc *pvcc = atmvcc_to_pvcc(atmvcc);
 	pr_debug("\n");
 	if (skb == NULL) {			/* VCC was closed */
+		struct module *module;
+
 		pr_debug("removing ATMPPP VCC %p\n", pvcc);
+		module = pvcc->old_owner;
 		pppoatm_unassign_vcc(atmvcc);
 		atmvcc->push(atmvcc, NULL);	/* Pass along bad news */
+		module_put(module);
 		return;
 	}
 	atm_return(atmvcc, skb->truesize);
@@ -211,7 +234,7 @@ error:
 	ppp_input_error(&pvcc->chan, 0);
 }
 
-static inline int pppoatm_may_send(struct pppoatm_vcc *pvcc, int size)
+static int pppoatm_may_send(struct pppoatm_vcc *pvcc, int size)
 {
 	/*
 	 * It's not clear that we need to bother with using atm_may_send()
@@ -269,10 +292,33 @@ static inline int pppoatm_may_send(struct pppoatm_vcc *pvcc, int size)
 static int pppoatm_send(struct ppp_channel *chan, struct sk_buff *skb)
 {
 	struct pppoatm_vcc *pvcc = chan_to_pvcc(chan);
+	struct atm_vcc *vcc;
+	int ret;
+
 	ATM_SKB(skb)->vcc = pvcc->atmvcc;
 	pr_debug("(skb=0x%p, vcc=0x%p)\n", skb, pvcc->atmvcc);
 	if (skb->data[0] == '\0' && (pvcc->flags & SC_COMP_PROT))
 		(void) skb_pull(skb, 1);
+
+	vcc = ATM_SKB(skb)->vcc;
+	bh_lock_sock(sk_atm(vcc));
+	if (sock_owned_by_user(sk_atm(vcc))) {
+		/*
+		 * Needs to happen (and be flushed, hence test_and_) before we unlock
+		 * the socket. It needs to be seen by the time our ->release_cb gets
+		 * called.
+		 */
+		test_and_set_bit(BLOCKED, &pvcc->blocked);
+		goto nospace;
+	}
+	if (test_bit(ATM_VF_RELEASED, &vcc->flags) ||
+	    test_bit(ATM_VF_CLOSE, &vcc->flags) ||
+	    !test_bit(ATM_VF_READY, &vcc->flags)) {
+		bh_unlock_sock(sk_atm(vcc));
+		kfree_skb(skb);
+		return DROP_PACKET;
+	}
+
 	switch (pvcc->encaps) {		/* LLC encapsulation needed */
 	case e_llc:
 		if (skb_headroom(skb) < LLC_LEN) {
@@ -285,8 +331,10 @@ static int pppoatm_send(struct ppp_channel *chan, struct sk_buff *skb)
 			}
 			consume_skb(skb);
 			skb = n;
-			if (skb == NULL)
+			if (skb == NULL) {
+				bh_unlock_sock(sk_atm(vcc));
 				return DROP_PACKET;
+			}
 		} else if (!pppoatm_may_send(pvcc, skb->truesize))
 			goto nospace;
 		memcpy(skb_push(skb, LLC_LEN), pppllc, LLC_LEN);
@@ -296,6 +344,7 @@ static int pppoatm_send(struct ppp_channel *chan, struct sk_buff *skb)
 			goto nospace;
 		break;
 	case e_autodetect:
+		bh_unlock_sock(sk_atm(vcc));
 		pr_debug("Trying to send without setting encaps!\n");
 		kfree_skb(skb);
 		return 1;
@@ -305,9 +354,12 @@ static int pppoatm_send(struct ppp_channel *chan, struct sk_buff *skb)
 	ATM_SKB(skb)->atm_options = ATM_SKB(skb)->vcc->atm_options;
 	pr_debug("atm_skb(%p)->vcc(%p)->dev(%p)\n",
 		 skb, ATM_SKB(skb)->vcc, ATM_SKB(skb)->vcc->dev);
-	return ATM_SKB(skb)->vcc->send(ATM_SKB(skb)->vcc, skb)
+	ret = ATM_SKB(skb)->vcc->send(ATM_SKB(skb)->vcc, skb)
 	    ? DROP_PACKET : 1;
+	bh_unlock_sock(sk_atm(vcc));
+	return ret;
 nospace:
+	bh_unlock_sock(sk_atm(vcc));
 	/*
 	 * We don't have space to send this SKB now, but we might have
 	 * already applied SC_COMP_PROT compression, so may need to undo
@@ -362,6 +414,8 @@ static int pppoatm_assign_vcc(struct atm_vcc *atmvcc, void __user *arg)
 	atomic_set(&pvcc->inflight, NONE_INFLIGHT);
 	pvcc->old_push = atmvcc->push;
 	pvcc->old_pop = atmvcc->pop;
+	pvcc->old_owner = atmvcc->owner;
+	pvcc->old_release_cb = atmvcc->release_cb;
 	pvcc->encaps = (enum pppoatm_encaps) be.encaps;
 	pvcc->chan.private = pvcc;
 	pvcc->chan.ops = &pppoatm_ops;
@@ -377,7 +431,9 @@ static int pppoatm_assign_vcc(struct atm_vcc *atmvcc, void __user *arg)
 	atmvcc->user_back = pvcc;
 	atmvcc->push = pppoatm_push;
 	atmvcc->pop = pppoatm_pop;
+	atmvcc->release_cb = pppoatm_release_cb;
 	__module_get(THIS_MODULE);
+	atmvcc->owner = THIS_MODULE;
 
 	/* re-process everything received between connection setup and
 	   backend setup */
@@ -406,6 +462,8 @@ static int pppoatm_ioctl(struct socket *sock, unsigned int cmd,
 			return -ENOIOCTLCMD;
 		if (!capable(CAP_NET_ADMIN))
 			return -EPERM;
+		if (sock->state != SS_CONNECTED)
+			return -EINVAL;
 		return pppoatm_assign_vcc(atmvcc, argp);
 		}
 	case PPPIOCGCHAN:
diff --git a/net/batman-adv/Kconfig b/net/batman-adv/Kconfig
index 53f5244..8d8afb1 100644
--- a/net/batman-adv/Kconfig
+++ b/net/batman-adv/Kconfig
@@ -6,6 +6,7 @@ config BATMAN_ADV
 	tristate "B.A.T.M.A.N. Advanced Meshing Protocol"
 	depends on NET
 	select CRC16
+	select LIBCRC32C
         default n
 	help
           B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is
@@ -25,6 +26,16 @@ config BATMAN_ADV_BLA
 	  more than one mesh node in the same LAN, you can safely remove
 	  this feature and save some space.
 
+config BATMAN_ADV_DAT
+	bool "Distributed ARP Table"
+	depends on BATMAN_ADV && INET
+	default n
+	help
+	  This option enables DAT (Distributed ARP Table), a DHT based
+	  mechanism that increases ARP reliability on sparse wireless
+	  mesh networks. If you think that your network does not need
+	  this option you can safely remove it and save some space.
+
 config BATMAN_ADV_DEBUG
 	bool "B.A.T.M.A.N. debugging"
 	depends on BATMAN_ADV
diff --git a/net/batman-adv/Makefile b/net/batman-adv/Makefile
index 8676d2b..e45e3b4 100644
--- a/net/batman-adv/Makefile
+++ b/net/batman-adv/Makefile
@@ -23,6 +23,7 @@ batman-adv-y += bat_iv_ogm.o
 batman-adv-y += bitarray.o
 batman-adv-$(CONFIG_BATMAN_ADV_BLA) += bridge_loop_avoidance.o
 batman-adv-y += debugfs.o
+batman-adv-$(CONFIG_BATMAN_ADV_DAT) += distributed-arp-table.o
 batman-adv-y += gateway_client.o
 batman-adv-y += gateway_common.o
 batman-adv-y += hard-interface.o
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index b02b75d..9f3925a 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -57,20 +57,22 @@ out:
 static int batadv_iv_ogm_iface_enable(struct batadv_hard_iface *hard_iface)
 {
 	struct batadv_ogm_packet *batadv_ogm_packet;
+	unsigned char *ogm_buff;
 	uint32_t random_seqno;
 	int res = -ENOMEM;
 
 	/* randomize initial seqno to avoid collision */
 	get_random_bytes(&random_seqno, sizeof(random_seqno));
-	atomic_set(&hard_iface->seqno, random_seqno);
+	atomic_set(&hard_iface->bat_iv.ogm_seqno, random_seqno);
 
-	hard_iface->packet_len = BATADV_OGM_HLEN;
-	hard_iface->packet_buff = kmalloc(hard_iface->packet_len, GFP_ATOMIC);
-
-	if (!hard_iface->packet_buff)
+	hard_iface->bat_iv.ogm_buff_len = BATADV_OGM_HLEN;
+	ogm_buff = kmalloc(hard_iface->bat_iv.ogm_buff_len, GFP_ATOMIC);
+	if (!ogm_buff)
 		goto out;
 
-	batadv_ogm_packet = (struct batadv_ogm_packet *)hard_iface->packet_buff;
+	hard_iface->bat_iv.ogm_buff = ogm_buff;
+
+	batadv_ogm_packet = (struct batadv_ogm_packet *)ogm_buff;
 	batadv_ogm_packet->header.packet_type = BATADV_IV_OGM;
 	batadv_ogm_packet->header.version = BATADV_COMPAT_VERSION;
 	batadv_ogm_packet->header.ttl = 2;
@@ -87,15 +89,16 @@ out:
 
 static void batadv_iv_ogm_iface_disable(struct batadv_hard_iface *hard_iface)
 {
-	kfree(hard_iface->packet_buff);
-	hard_iface->packet_buff = NULL;
+	kfree(hard_iface->bat_iv.ogm_buff);
+	hard_iface->bat_iv.ogm_buff = NULL;
 }
 
 static void batadv_iv_ogm_iface_update_mac(struct batadv_hard_iface *hard_iface)
 {
 	struct batadv_ogm_packet *batadv_ogm_packet;
+	unsigned char *ogm_buff = hard_iface->bat_iv.ogm_buff;
 
-	batadv_ogm_packet = (struct batadv_ogm_packet *)hard_iface->packet_buff;
+	batadv_ogm_packet = (struct batadv_ogm_packet *)ogm_buff;
 	memcpy(batadv_ogm_packet->orig,
 	       hard_iface->net_dev->dev_addr, ETH_ALEN);
 	memcpy(batadv_ogm_packet->prev_sender,
@@ -106,8 +109,9 @@ static void
 batadv_iv_ogm_primary_iface_set(struct batadv_hard_iface *hard_iface)
 {
 	struct batadv_ogm_packet *batadv_ogm_packet;
+	unsigned char *ogm_buff = hard_iface->bat_iv.ogm_buff;
 
-	batadv_ogm_packet = (struct batadv_ogm_packet *)hard_iface->packet_buff;
+	batadv_ogm_packet = (struct batadv_ogm_packet *)ogm_buff;
 	batadv_ogm_packet->flags = BATADV_PRIMARIES_FIRST_HOP;
 	batadv_ogm_packet->header.ttl = BATADV_TTL;
 }
@@ -407,9 +411,11 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
 
 	if ((atomic_read(&bat_priv->aggregated_ogms)) &&
 	    (packet_len < BATADV_MAX_AGGREGATION_BYTES))
-		skb_size = BATADV_MAX_AGGREGATION_BYTES + ETH_HLEN;
+		skb_size = BATADV_MAX_AGGREGATION_BYTES;
 	else
-		skb_size = packet_len + ETH_HLEN;
+		skb_size = packet_len;
+
+	skb_size += ETH_HLEN + NET_IP_ALIGN;
 
 	forw_packet_aggr->skb = dev_alloc_skb(skb_size);
 	if (!forw_packet_aggr->skb) {
@@ -418,7 +424,7 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
 		kfree(forw_packet_aggr);
 		goto out;
 	}
-	skb_reserve(forw_packet_aggr->skb, ETH_HLEN);
+	skb_reserve(forw_packet_aggr->skb, ETH_HLEN + NET_IP_ALIGN);
 
 	INIT_HLIST_NODE(&forw_packet_aggr->list);
 
@@ -590,8 +596,10 @@ static void batadv_iv_ogm_forward(struct batadv_orig_node *orig_node,
 static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 {
 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
+	unsigned char **ogm_buff = &hard_iface->bat_iv.ogm_buff;
 	struct batadv_ogm_packet *batadv_ogm_packet;
 	struct batadv_hard_iface *primary_if;
+	int *ogm_buff_len = &hard_iface->bat_iv.ogm_buff_len;
 	int vis_server, tt_num_changes = 0;
 	uint32_t seqno;
 	uint8_t bandwidth;
@@ -600,17 +608,16 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 	primary_if = batadv_primary_if_get_selected(bat_priv);
 
 	if (hard_iface == primary_if)
-		tt_num_changes = batadv_tt_append_diff(bat_priv,
-						       &hard_iface->packet_buff,
-						       &hard_iface->packet_len,
+		tt_num_changes = batadv_tt_append_diff(bat_priv, ogm_buff,
+						       ogm_buff_len,
 						       BATADV_OGM_HLEN);
 
-	batadv_ogm_packet = (struct batadv_ogm_packet *)hard_iface->packet_buff;
+	batadv_ogm_packet = (struct batadv_ogm_packet *)(*ogm_buff);
 
 	/* change sequence number to network order */
-	seqno = (uint32_t)atomic_read(&hard_iface->seqno);
+	seqno = (uint32_t)atomic_read(&hard_iface->bat_iv.ogm_seqno);
 	batadv_ogm_packet->seqno = htonl(seqno);
-	atomic_inc(&hard_iface->seqno);
+	atomic_inc(&hard_iface->bat_iv.ogm_seqno);
 
 	batadv_ogm_packet->ttvn = atomic_read(&bat_priv->tt.vn);
 	batadv_ogm_packet->tt_crc = htons(bat_priv->tt.local_crc);
@@ -631,8 +638,8 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 	}
 
 	batadv_slide_own_bcast_window(hard_iface);
-	batadv_iv_ogm_queue_add(bat_priv, hard_iface->packet_buff,
-				hard_iface->packet_len, hard_iface, 1,
+	batadv_iv_ogm_queue_add(bat_priv, hard_iface->bat_iv.ogm_buff,
+				hard_iface->bat_iv.ogm_buff_len, hard_iface, 1,
 				batadv_iv_ogm_emit_send_time(bat_priv));
 
 	if (primary_if)
@@ -1015,7 +1022,7 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 		return;
 
 	/* could be changed by schedule_own_packet() */
-	if_incoming_seqno = atomic_read(&if_incoming->seqno);
+	if_incoming_seqno = atomic_read(&if_incoming->bat_iv.ogm_seqno);
 
 	if (batadv_ogm_packet->flags & BATADV_DIRECTLINK)
 		has_directlink_flag = 1;
diff --git a/net/batman-adv/bitarray.c b/net/batman-adv/bitarray.c
index aea174c..5453b17 100644
--- a/net/batman-adv/bitarray.c
+++ b/net/batman-adv/bitarray.c
@@ -79,20 +79,17 @@ int batadv_bit_get_packet(void *priv, unsigned long *seq_bits,
 	 * or the old packet got delayed somewhere in the network. The
 	 * packet should be dropped without calling this function if the
 	 * seqno window is protected.
+	 *
+	 * seq_num_diff <= -BATADV_TQ_LOCAL_WINDOW_SIZE
+	 * or
+	 * seq_num_diff >= BATADV_EXPECTED_SEQNO_RANGE
 	 */
-	if (seq_num_diff <= -BATADV_TQ_LOCAL_WINDOW_SIZE ||
-	    seq_num_diff >= BATADV_EXPECTED_SEQNO_RANGE) {
+	batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+		   "Other host probably restarted!\n");
 
-		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-			   "Other host probably restarted!\n");
-
-		bitmap_zero(seq_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
-		if (set_mark)
-			batadv_set_bit(seq_bits, 0);
-
-		return 1;
-	}
+	bitmap_zero(seq_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
+	if (set_mark)
+		batadv_set_bit(seq_bits, 0);
 
-	/* never reached */
-	return 0;
+	return 1;
 }
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index fd8d5af..5aebe93 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -40,15 +40,11 @@ static void batadv_bla_send_announce(struct batadv_priv *bat_priv,
 /* return the index of the claim */
 static inline uint32_t batadv_choose_claim(const void *data, uint32_t size)
 {
-	const unsigned char *key = data;
+	struct batadv_claim *claim = (struct batadv_claim *)data;
 	uint32_t hash = 0;
-	size_t i;
 
-	for (i = 0; i < ETH_ALEN + sizeof(short); i++) {
-		hash += key[i];
-		hash += (hash << 10);
-		hash ^= (hash >> 6);
-	}
+	hash = batadv_hash_bytes(hash, &claim->addr, sizeof(claim->addr));
+	hash = batadv_hash_bytes(hash, &claim->vid, sizeof(claim->vid));
 
 	hash += (hash << 3);
 	hash ^= (hash >> 11);
@@ -61,15 +57,11 @@ static inline uint32_t batadv_choose_claim(const void *data, uint32_t size)
 static inline uint32_t batadv_choose_backbone_gw(const void *data,
 						 uint32_t size)
 {
-	const unsigned char *key = data;
+	struct batadv_claim *claim = (struct batadv_claim *)data;
 	uint32_t hash = 0;
-	size_t i;
 
-	for (i = 0; i < ETH_ALEN + sizeof(short); i++) {
-		hash += key[i];
-		hash += (hash << 10);
-		hash ^= (hash >> 6);
-	}
+	hash = batadv_hash_bytes(hash, &claim->addr, sizeof(claim->addr));
+	hash = batadv_hash_bytes(hash, &claim->vid, sizeof(claim->vid));
 
 	hash += (hash << 3);
 	hash ^= (hash >> 11);
@@ -85,8 +77,15 @@ static int batadv_compare_backbone_gw(const struct hlist_node *node,
 {
 	const void *data1 = container_of(node, struct batadv_backbone_gw,
 					 hash_entry);
+	const struct batadv_backbone_gw *gw1 = data1, *gw2 = data2;
+
+	if (!batadv_compare_eth(gw1->orig, gw2->orig))
+		return 0;
+
+	if (gw1->vid != gw2->vid)
+		return 0;
 
-	return (memcmp(data1, data2, ETH_ALEN + sizeof(short)) == 0 ? 1 : 0);
+	return 1;
 }
 
 /* compares address and vid of two claims */
@@ -95,8 +94,15 @@ static int batadv_compare_claim(const struct hlist_node *node,
 {
 	const void *data1 = container_of(node, struct batadv_claim,
 					 hash_entry);
+	const struct batadv_claim *cl1 = data1, *cl2 = data2;
+
+	if (!batadv_compare_eth(cl1->addr, cl2->addr))
+		return 0;
+
+	if (cl1->vid != cl2->vid)
+		return 0;
 
-	return (memcmp(data1, data2, ETH_ALEN + sizeof(short)) == 0 ? 1 : 0);
+	return 1;
 }
 
 /* free a backbone gw */
@@ -362,7 +368,7 @@ out:
  */
 static struct batadv_backbone_gw *
 batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, uint8_t *orig,
-			   short vid)
+			   short vid, bool own_backbone)
 {
 	struct batadv_backbone_gw *entry;
 	struct batadv_orig_node *orig_node;
@@ -386,6 +392,7 @@ batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, uint8_t *orig,
 	entry->crc = BATADV_BLA_CRC_INIT;
 	entry->bat_priv = bat_priv;
 	atomic_set(&entry->request_sent, 0);
+	atomic_set(&entry->wait_periods, 0);
 	memcpy(entry->orig, orig, ETH_ALEN);
 
 	/* one for the hash, one for returning */
@@ -409,6 +416,16 @@ batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, uint8_t *orig,
 					  "became a backbone gateway");
 		batadv_orig_node_free_ref(orig_node);
 	}
+
+	if (own_backbone) {
+		batadv_bla_send_announce(bat_priv, entry);
+
+		/* this will be decreased in the worker thread */
+		atomic_inc(&entry->request_sent);
+		atomic_set(&entry->wait_periods, BATADV_BLA_WAIT_PERIODS);
+		atomic_inc(&bat_priv->bla.num_requests);
+	}
+
 	return entry;
 }
 
@@ -424,7 +441,7 @@ batadv_bla_update_own_backbone_gw(struct batadv_priv *bat_priv,
 
 	backbone_gw = batadv_bla_get_backbone_gw(bat_priv,
 						 primary_if->net_dev->dev_addr,
-						 vid);
+						 vid, true);
 	if (unlikely(!backbone_gw))
 		return;
 
@@ -632,7 +649,8 @@ static int batadv_handle_announce(struct batadv_priv *bat_priv,
 	if (memcmp(an_addr, batadv_announce_mac, 4) != 0)
 		return 0;
 
-	backbone_gw = batadv_bla_get_backbone_gw(bat_priv, backbone_addr, vid);
+	backbone_gw = batadv_bla_get_backbone_gw(bat_priv, backbone_addr, vid,
+						 false);
 
 	if (unlikely(!backbone_gw))
 		return 1;
@@ -730,7 +748,8 @@ static int batadv_handle_claim(struct batadv_priv *bat_priv,
 
 	/* register the gateway if not yet available, and add the claim. */
 
-	backbone_gw = batadv_bla_get_backbone_gw(bat_priv, backbone_addr, vid);
+	backbone_gw = batadv_bla_get_backbone_gw(bat_priv, backbone_addr, vid,
+						 false);
 
 	if (unlikely(!backbone_gw))
 		return 1;
@@ -1140,6 +1159,24 @@ static void batadv_bla_periodic_work(struct work_struct *work)
 			backbone_gw->lasttime = jiffies;
 
 			batadv_bla_send_announce(bat_priv, backbone_gw);
+
+			/* request_sent is only set after creation to avoid
+			 * problems when we are not yet known as backbone gw
+			 * in the backbone.
+			 *
+			 * We can reset this now after we waited some periods
+			 * to give bridge forward delays and bla group forming
+			 * some grace time.
+			 */
+
+			if (atomic_read(&backbone_gw->request_sent) == 0)
+				continue;
+
+			if (!atomic_dec_and_test(&backbone_gw->wait_periods))
+				continue;
+
+			atomic_dec(&backbone_gw->bat_priv->bla.num_requests);
+			atomic_set(&backbone_gw->request_sent, 0);
 		}
 		rcu_read_unlock();
 	}
@@ -1212,8 +1249,7 @@ int batadv_bla_init(struct batadv_priv *bat_priv)
 /**
  * batadv_bla_check_bcast_duplist
  * @bat_priv: the bat priv with all the soft interface information
- * @bcast_packet: encapsulated broadcast frame plus batman header
- * @bcast_packet_len: length of encapsulated broadcast frame plus batman header
+ * @skb: contains the bcast_packet to be checked
  *
  * check if it is on our broadcast list. Another gateway might
  * have sent the same packet because it is connected to the same backbone,
@@ -1225,20 +1261,17 @@ int batadv_bla_init(struct batadv_priv *bat_priv)
  * the same host however as this might be intended.
  */
 int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
-				   struct batadv_bcast_packet *bcast_packet,
-				   int bcast_packet_len)
+				   struct sk_buff *skb)
 {
-	int i, length, curr, ret = 0;
-	uint8_t *content;
-	uint16_t crc;
+	int i, curr, ret = 0;
+	__be32 crc;
+	struct batadv_bcast_packet *bcast_packet;
 	struct batadv_bcast_duplist_entry *entry;
 
-	length = bcast_packet_len - sizeof(*bcast_packet);
-	content = (uint8_t *)bcast_packet;
-	content += sizeof(*bcast_packet);
+	bcast_packet = (struct batadv_bcast_packet *)skb->data;
 
 	/* calculate the crc ... */
-	crc = crc16(0, content, length);
+	crc = batadv_skb_crc32(skb, (u8 *)(bcast_packet + 1));
 
 	spin_lock_bh(&bat_priv->bla.bcast_duplist_lock);
 
@@ -1585,23 +1618,11 @@ int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset)
 	struct hlist_head *head;
 	uint32_t i;
 	bool is_own;
-	int ret = 0;
 	uint8_t *primary_addr;
 
-	primary_if = batadv_primary_if_get_selected(bat_priv);
-	if (!primary_if) {
-		ret = seq_printf(seq,
-				 "BATMAN mesh %s disabled - please specify interfaces to enable it\n",
-				 net_dev->name);
-		goto out;
-	}
-
-	if (primary_if->if_status != BATADV_IF_ACTIVE) {
-		ret = seq_printf(seq,
-				 "BATMAN mesh %s disabled - primary interface not active\n",
-				 net_dev->name);
+	primary_if = batadv_seq_print_text_primary_if_get(seq);
+	if (!primary_if)
 		goto out;
-	}
 
 	primary_addr = primary_if->net_dev->dev_addr;
 	seq_printf(seq,
@@ -1628,7 +1649,7 @@ int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset)
 out:
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
-	return ret;
+	return 0;
 }
 
 int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq, void *offset)
@@ -1643,23 +1664,11 @@ int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq, void *offset)
 	int secs, msecs;
 	uint32_t i;
 	bool is_own;
-	int ret = 0;
 	uint8_t *primary_addr;
 
-	primary_if = batadv_primary_if_get_selected(bat_priv);
-	if (!primary_if) {
-		ret = seq_printf(seq,
-				 "BATMAN mesh %s disabled - please specify interfaces to enable it\n",
-				 net_dev->name);
-		goto out;
-	}
-
-	if (primary_if->if_status != BATADV_IF_ACTIVE) {
-		ret = seq_printf(seq,
-				 "BATMAN mesh %s disabled - primary interface not active\n",
-				 net_dev->name);
+	primary_if = batadv_seq_print_text_primary_if_get(seq);
+	if (!primary_if)
 		goto out;
-	}
 
 	primary_addr = primary_if->net_dev->dev_addr;
 	seq_printf(seq,
@@ -1693,5 +1702,5 @@ int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq, void *offset)
 out:
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
-	return ret;
+	return 0;
 }
diff --git a/net/batman-adv/bridge_loop_avoidance.h b/net/batman-adv/bridge_loop_avoidance.h
index 789cb73..196d9a0 100644
--- a/net/batman-adv/bridge_loop_avoidance.h
+++ b/net/batman-adv/bridge_loop_avoidance.h
@@ -31,8 +31,7 @@ int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
 					     void *offset);
 int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig);
 int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
-				   struct batadv_bcast_packet *bcast_packet,
-				   int hdr_size);
+				   struct sk_buff *skb);
 void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
 				    struct batadv_hard_iface *primary_if,
 				    struct batadv_hard_iface *oldif);
@@ -81,8 +80,7 @@ static inline int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
 
 static inline int
 batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
-			       struct batadv_bcast_packet *bcast_packet,
-			       int hdr_size)
+			       struct sk_buff *skb)
 {
 	return 0;
 }
diff --git a/net/batman-adv/debugfs.c b/net/batman-adv/debugfs.c
index 391d4fb..6f58ddd 100644
--- a/net/batman-adv/debugfs.c
+++ b/net/batman-adv/debugfs.c
@@ -31,6 +31,7 @@
 #include "vis.h"
 #include "icmp_socket.h"
 #include "bridge_loop_avoidance.h"
+#include "distributed-arp-table.h"
 
 static struct dentry *batadv_debugfs;
 
@@ -99,15 +100,17 @@ int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
 
 static int batadv_log_open(struct inode *inode, struct file *file)
 {
+	if (!try_module_get(THIS_MODULE))
+		return -EBUSY;
+
 	nonseekable_open(inode, file);
 	file->private_data = inode->i_private;
-	batadv_inc_module_count();
 	return 0;
 }
 
 static int batadv_log_release(struct inode *inode, struct file *file)
 {
-	batadv_dec_module_count();
+	module_put(THIS_MODULE);
 	return 0;
 }
 
@@ -278,6 +281,19 @@ static int batadv_bla_backbone_table_open(struct inode *inode,
 
 #endif
 
+#ifdef CONFIG_BATMAN_ADV_DAT
+/**
+ * batadv_dat_cache_open - Prepare file handler for reads from dat_chache
+ * @inode: inode which was opened
+ * @file: file handle to be initialized
+ */
+static int batadv_dat_cache_open(struct inode *inode, struct file *file)
+{
+	struct net_device *net_dev = (struct net_device *)inode->i_private;
+	return single_open(file, batadv_dat_cache_seq_print_text, net_dev);
+}
+#endif
+
 static int batadv_transtable_local_open(struct inode *inode, struct file *file)
 {
 	struct net_device *net_dev = (struct net_device *)inode->i_private;
@@ -307,7 +323,17 @@ struct batadv_debuginfo batadv_debuginfo_##_name = {	\
 		}					\
 };
 
+/* the following attributes are general and therefore they will be directly
+ * placed in the BATADV_DEBUGFS_SUBDIR subdirectory of debugfs
+ */
 static BATADV_DEBUGINFO(routing_algos, S_IRUGO, batadv_algorithms_open);
+
+static struct batadv_debuginfo *batadv_general_debuginfos[] = {
+	&batadv_debuginfo_routing_algos,
+	NULL,
+};
+
+/* The following attributes are per soft interface */
 static BATADV_DEBUGINFO(originators, S_IRUGO, batadv_originators_open);
 static BATADV_DEBUGINFO(gateways, S_IRUGO, batadv_gateways_open);
 static BATADV_DEBUGINFO(transtable_global, S_IRUGO,
@@ -317,6 +343,9 @@ static BATADV_DEBUGINFO(bla_claim_table, S_IRUGO, batadv_bla_claim_table_open);
 static BATADV_DEBUGINFO(bla_backbone_table, S_IRUGO,
 			batadv_bla_backbone_table_open);
 #endif
+#ifdef CONFIG_BATMAN_ADV_DAT
+static BATADV_DEBUGINFO(dat_cache, S_IRUGO, batadv_dat_cache_open);
+#endif
 static BATADV_DEBUGINFO(transtable_local, S_IRUGO,
 			batadv_transtable_local_open);
 static BATADV_DEBUGINFO(vis_data, S_IRUGO, batadv_vis_data_open);
@@ -329,6 +358,9 @@ static struct batadv_debuginfo *batadv_mesh_debuginfos[] = {
 	&batadv_debuginfo_bla_claim_table,
 	&batadv_debuginfo_bla_backbone_table,
 #endif
+#ifdef CONFIG_BATMAN_ADV_DAT
+	&batadv_debuginfo_dat_cache,
+#endif
 	&batadv_debuginfo_transtable_local,
 	&batadv_debuginfo_vis_data,
 	NULL,
@@ -336,7 +368,7 @@ static struct batadv_debuginfo *batadv_mesh_debuginfos[] = {
 
 void batadv_debugfs_init(void)
 {
-	struct batadv_debuginfo *bat_debug;
+	struct batadv_debuginfo **bat_debug;
 	struct dentry *file;
 
 	batadv_debugfs = debugfs_create_dir(BATADV_DEBUGFS_SUBDIR, NULL);
@@ -344,17 +376,23 @@ void batadv_debugfs_init(void)
 		batadv_debugfs = NULL;
 
 	if (!batadv_debugfs)
-		goto out;
+		goto err;
 
-	bat_debug = &batadv_debuginfo_routing_algos;
-	file = debugfs_create_file(bat_debug->attr.name,
-				   S_IFREG | bat_debug->attr.mode,
-				   batadv_debugfs, NULL, &bat_debug->fops);
-	if (!file)
-		pr_err("Can't add debugfs file: %s\n", bat_debug->attr.name);
+	for (bat_debug = batadv_general_debuginfos; *bat_debug; ++bat_debug) {
+		file = debugfs_create_file(((*bat_debug)->attr).name,
+					   S_IFREG | ((*bat_debug)->attr).mode,
+					   batadv_debugfs, NULL,
+					   &(*bat_debug)->fops);
+		if (!file) {
+			pr_err("Can't add general debugfs file: %s\n",
+			       ((*bat_debug)->attr).name);
+			goto err;
+		}
+	}
 
-out:
 	return;
+err:
+	debugfs_remove_recursive(batadv_debugfs);
 }
 
 void batadv_debugfs_destroy(void)
diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
new file mode 100644
index 0000000..8e1d89d
--- /dev/null
+++ b/net/batman-adv/distributed-arp-table.c
@@ -0,0 +1,1066 @@
+/* Copyright (C) 2011-2012 B.A.T.M.A.N. contributors:
+ *
+ * Antonio Quartulli
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#include <linux/if_ether.h>
+#include <linux/if_arp.h>
+#include <net/arp.h>
+
+#include "main.h"
+#include "hash.h"
+#include "distributed-arp-table.h"
+#include "hard-interface.h"
+#include "originator.h"
+#include "send.h"
+#include "types.h"
+#include "translation-table.h"
+#include "unicast.h"
+
+static void batadv_dat_purge(struct work_struct *work);
+
+/**
+ * batadv_dat_start_timer - initialise the DAT periodic worker
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+static void batadv_dat_start_timer(struct batadv_priv *bat_priv)
+{
+	INIT_DELAYED_WORK(&bat_priv->dat.work, batadv_dat_purge);
+	queue_delayed_work(batadv_event_workqueue, &bat_priv->dat.work,
+			   msecs_to_jiffies(10000));
+}
+
+/**
+ * batadv_dat_entry_free_ref - decrements the dat_entry refcounter and possibly
+ * free it
+ * @dat_entry: the oentry to free
+ */
+static void batadv_dat_entry_free_ref(struct batadv_dat_entry *dat_entry)
+{
+	if (atomic_dec_and_test(&dat_entry->refcount))
+		kfree_rcu(dat_entry, rcu);
+}
+
+/**
+ * batadv_dat_to_purge - checks whether a dat_entry has to be purged or not
+ * @dat_entry: the entry to check
+ *
+ * Returns true if the entry has to be purged now, false otherwise
+ */
+static bool batadv_dat_to_purge(struct batadv_dat_entry *dat_entry)
+{
+	return batadv_has_timed_out(dat_entry->last_update,
+				    BATADV_DAT_ENTRY_TIMEOUT);
+}
+
+/**
+ * __batadv_dat_purge - delete entries from the DAT local storage
+ * @bat_priv: the bat priv with all the soft interface information
+ * @to_purge: function in charge to decide whether an entry has to be purged or
+ *	      not. This function takes the dat_entry as argument and has to
+ *	      returns a boolean value: true is the entry has to be deleted,
+ *	      false otherwise
+ *
+ * Loops over each entry in the DAT local storage and delete it if and only if
+ * the to_purge function passed as argument returns true
+ */
+static void __batadv_dat_purge(struct batadv_priv *bat_priv,
+			       bool (*to_purge)(struct batadv_dat_entry *))
+{
+	spinlock_t *list_lock; /* protects write access to the hash lists */
+	struct batadv_dat_entry *dat_entry;
+	struct hlist_node *node, *node_tmp;
+	struct hlist_head *head;
+	uint32_t i;
+
+	if (!bat_priv->dat.hash)
+		return;
+
+	for (i = 0; i < bat_priv->dat.hash->size; i++) {
+		head = &bat_priv->dat.hash->table[i];
+		list_lock = &bat_priv->dat.hash->list_locks[i];
+
+		spin_lock_bh(list_lock);
+		hlist_for_each_entry_safe(dat_entry, node, node_tmp, head,
+					  hash_entry) {
+			/* if an helper function has been passed as parameter,
+			 * ask it if the entry has to be purged or not
+			 */
+			if (to_purge && !to_purge(dat_entry))
+				continue;
+
+			hlist_del_rcu(node);
+			batadv_dat_entry_free_ref(dat_entry);
+		}
+		spin_unlock_bh(list_lock);
+	}
+}
+
+/**
+ * batadv_dat_purge - periodic task that deletes old entries from the local DAT
+ * hash table
+ * @work: kernel work struct
+ */
+static void batadv_dat_purge(struct work_struct *work)
+{
+	struct delayed_work *delayed_work;
+	struct batadv_priv_dat *priv_dat;
+	struct batadv_priv *bat_priv;
+
+	delayed_work = container_of(work, struct delayed_work, work);
+	priv_dat = container_of(delayed_work, struct batadv_priv_dat, work);
+	bat_priv = container_of(priv_dat, struct batadv_priv, dat);
+
+	__batadv_dat_purge(bat_priv, batadv_dat_to_purge);
+	batadv_dat_start_timer(bat_priv);
+}
+
+/**
+ * batadv_compare_dat - comparing function used in the local DAT hash table
+ * @node: node in the local table
+ * @data2: second object to compare the node to
+ *
+ * Returns 1 if the two entry are the same, 0 otherwise
+ */
+static int batadv_compare_dat(const struct hlist_node *node, const void *data2)
+{
+	const void *data1 = container_of(node, struct batadv_dat_entry,
+					 hash_entry);
+
+	return (memcmp(data1, data2, sizeof(__be32)) == 0 ? 1 : 0);
+}
+
+/**
+ * batadv_arp_hw_src - extract the hw_src field from an ARP packet
+ * @skb: ARP packet
+ * @hdr_size: size of the possible header before the ARP packet
+ *
+ * Returns the value of the hw_src field in the ARP packet
+ */
+static uint8_t *batadv_arp_hw_src(struct sk_buff *skb, int hdr_size)
+{
+	uint8_t *addr;
+
+	addr = (uint8_t *)(skb->data + hdr_size);
+	addr += ETH_HLEN + sizeof(struct arphdr);
+
+	return addr;
+}
+
+/**
+ * batadv_arp_ip_src - extract the ip_src field from an ARP packet
+ * @skb: ARP packet
+ * @hdr_size: size of the possible header before the ARP packet
+ *
+ * Returns the value of the ip_src field in the ARP packet
+ */
+static __be32 batadv_arp_ip_src(struct sk_buff *skb, int hdr_size)
+{
+	return *(__be32 *)(batadv_arp_hw_src(skb, hdr_size) + ETH_ALEN);
+}
+
+/**
+ * batadv_arp_hw_dst - extract the hw_dst field from an ARP packet
+ * @skb: ARP packet
+ * @hdr_size: size of the possible header before the ARP packet
+ *
+ * Returns the value of the hw_dst field in the ARP packet
+ */
+static uint8_t *batadv_arp_hw_dst(struct sk_buff *skb, int hdr_size)
+{
+	return batadv_arp_hw_src(skb, hdr_size) + ETH_ALEN + 4;
+}
+
+/**
+ * batadv_arp_ip_dst - extract the ip_dst field from an ARP packet
+ * @skb: ARP packet
+ * @hdr_size: size of the possible header before the ARP packet
+ *
+ * Returns the value of the ip_dst field in the ARP packet
+ */
+static __be32 batadv_arp_ip_dst(struct sk_buff *skb, int hdr_size)
+{
+	return *(__be32 *)(batadv_arp_hw_src(skb, hdr_size) + ETH_ALEN * 2 + 4);
+}
+
+/**
+ * batadv_hash_dat - compute the hash value for an IP address
+ * @data: data to hash
+ * @size: size of the hash table
+ *
+ * Returns the selected index in the hash table for the given data
+ */
+static uint32_t batadv_hash_dat(const void *data, uint32_t size)
+{
+	const unsigned char *key = data;
+	uint32_t hash = 0;
+	size_t i;
+
+	for (i = 0; i < 4; i++) {
+		hash += key[i];
+		hash += (hash << 10);
+		hash ^= (hash >> 6);
+	}
+
+	hash += (hash << 3);
+	hash ^= (hash >> 11);
+	hash += (hash << 15);
+
+	return hash % size;
+}
+
+/**
+ * batadv_dat_entry_hash_find - looks for a given dat_entry in the local hash
+ * table
+ * @bat_priv: the bat priv with all the soft interface information
+ * @ip: search key
+ *
+ * Returns the dat_entry if found, NULL otherwise
+ */
+static struct batadv_dat_entry *
+batadv_dat_entry_hash_find(struct batadv_priv *bat_priv, __be32 ip)
+{
+	struct hlist_head *head;
+	struct hlist_node *node;
+	struct batadv_dat_entry *dat_entry, *dat_entry_tmp = NULL;
+	struct batadv_hashtable *hash = bat_priv->dat.hash;
+	uint32_t index;
+
+	if (!hash)
+		return NULL;
+
+	index = batadv_hash_dat(&ip, hash->size);
+	head = &hash->table[index];
+
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(dat_entry, node, head, hash_entry) {
+		if (dat_entry->ip != ip)
+			continue;
+
+		if (!atomic_inc_not_zero(&dat_entry->refcount))
+			continue;
+
+		dat_entry_tmp = dat_entry;
+		break;
+	}
+	rcu_read_unlock();
+
+	return dat_entry_tmp;
+}
+
+/**
+ * batadv_dat_entry_add - add a new dat entry or update it if already exists
+ * @bat_priv: the bat priv with all the soft interface information
+ * @ip: ipv4 to add/edit
+ * @mac_addr: mac address to assign to the given ipv4
+ */
+static void batadv_dat_entry_add(struct batadv_priv *bat_priv, __be32 ip,
+				 uint8_t *mac_addr)
+{
+	struct batadv_dat_entry *dat_entry;
+	int hash_added;
+
+	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip);
+	/* if this entry is already known, just update it */
+	if (dat_entry) {
+		if (!batadv_compare_eth(dat_entry->mac_addr, mac_addr))
+			memcpy(dat_entry->mac_addr, mac_addr, ETH_ALEN);
+		dat_entry->last_update = jiffies;
+		batadv_dbg(BATADV_DBG_DAT, bat_priv,
+			   "Entry updated: %pI4 %pM\n", &dat_entry->ip,
+			   dat_entry->mac_addr);
+		goto out;
+	}
+
+	dat_entry = kmalloc(sizeof(*dat_entry), GFP_ATOMIC);
+	if (!dat_entry)
+		goto out;
+
+	dat_entry->ip = ip;
+	memcpy(dat_entry->mac_addr, mac_addr, ETH_ALEN);
+	dat_entry->last_update = jiffies;
+	atomic_set(&dat_entry->refcount, 2);
+
+	hash_added = batadv_hash_add(bat_priv->dat.hash, batadv_compare_dat,
+				     batadv_hash_dat, &dat_entry->ip,
+				     &dat_entry->hash_entry);
+
+	if (unlikely(hash_added != 0)) {
+		/* remove the reference for the hash */
+		batadv_dat_entry_free_ref(dat_entry);
+		goto out;
+	}
+
+	batadv_dbg(BATADV_DBG_DAT, bat_priv, "New entry added: %pI4 %pM\n",
+		   &dat_entry->ip, dat_entry->mac_addr);
+
+out:
+	if (dat_entry)
+		batadv_dat_entry_free_ref(dat_entry);
+}
+
+#ifdef CONFIG_BATMAN_ADV_DEBUG
+
+/**
+ * batadv_dbg_arp - print a debug message containing all the ARP packet details
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: ARP packet
+ * @type: ARP type
+ * @hdr_size: size of the possible header before the ARP packet
+ * @msg: message to print together with the debugging information
+ */
+static void batadv_dbg_arp(struct batadv_priv *bat_priv, struct sk_buff *skb,
+			   uint16_t type, int hdr_size, char *msg)
+{
+	struct batadv_unicast_4addr_packet *unicast_4addr_packet;
+	struct batadv_bcast_packet *bcast_pkt;
+	uint8_t *orig_addr;
+	__be32 ip_src, ip_dst;
+
+	if (msg)
+		batadv_dbg(BATADV_DBG_DAT, bat_priv, "%s\n", msg);
+
+	ip_src = batadv_arp_ip_src(skb, hdr_size);
+	ip_dst = batadv_arp_ip_dst(skb, hdr_size);
+	batadv_dbg(BATADV_DBG_DAT, bat_priv,
+		   "ARP MSG = [src: %pM-%pI4 dst: %pM-%pI4]\n",
+		   batadv_arp_hw_src(skb, hdr_size), &ip_src,
+		   batadv_arp_hw_dst(skb, hdr_size), &ip_dst);
+
+	if (hdr_size == 0)
+		return;
+
+	/* if the ARP packet is encapsulated in a batman packet, let's print
+	 * some debug messages
+	 */
+	unicast_4addr_packet = (struct batadv_unicast_4addr_packet *)skb->data;
+
+	switch (unicast_4addr_packet->u.header.packet_type) {
+	case BATADV_UNICAST:
+		batadv_dbg(BATADV_DBG_DAT, bat_priv,
+			   "* encapsulated within a UNICAST packet\n");
+		break;
+	case BATADV_UNICAST_4ADDR:
+		batadv_dbg(BATADV_DBG_DAT, bat_priv,
+			   "* encapsulated within a UNICAST_4ADDR packet (src: %pM)\n",
+			   unicast_4addr_packet->src);
+		switch (unicast_4addr_packet->subtype) {
+		case BATADV_P_DAT_DHT_PUT:
+			batadv_dbg(BATADV_DBG_DAT, bat_priv, "* type: DAT_DHT_PUT\n");
+			break;
+		case BATADV_P_DAT_DHT_GET:
+			batadv_dbg(BATADV_DBG_DAT, bat_priv, "* type: DAT_DHT_GET\n");
+			break;
+		case BATADV_P_DAT_CACHE_REPLY:
+			batadv_dbg(BATADV_DBG_DAT, bat_priv,
+				   "* type: DAT_CACHE_REPLY\n");
+			break;
+		case BATADV_P_DATA:
+			batadv_dbg(BATADV_DBG_DAT, bat_priv, "* type: DATA\n");
+			break;
+		default:
+			batadv_dbg(BATADV_DBG_DAT, bat_priv, "* type: Unknown (%u)!\n",
+				   unicast_4addr_packet->u.header.packet_type);
+		}
+		break;
+	case BATADV_BCAST:
+		bcast_pkt = (struct batadv_bcast_packet *)unicast_4addr_packet;
+		orig_addr = bcast_pkt->orig;
+		batadv_dbg(BATADV_DBG_DAT, bat_priv,
+			   "* encapsulated within a BCAST packet (src: %pM)\n",
+			   orig_addr);
+		break;
+	default:
+		batadv_dbg(BATADV_DBG_DAT, bat_priv,
+			   "* encapsulated within an unknown packet type (0x%x)\n",
+			   unicast_4addr_packet->u.header.packet_type);
+	}
+}
+
+#else
+
+static void batadv_dbg_arp(struct batadv_priv *bat_priv, struct sk_buff *skb,
+			   uint16_t type, int hdr_size, char *msg)
+{
+}
+
+#endif /* CONFIG_BATMAN_ADV_DEBUG */
+
+/**
+ * batadv_is_orig_node_eligible - check whether a node can be a DHT candidate
+ * @res: the array with the already selected candidates
+ * @select: number of already selected candidates
+ * @tmp_max: address of the currently evaluated node
+ * @max: current round max address
+ * @last_max: address of the last selected candidate
+ * @candidate: orig_node under evaluation
+ * @max_orig_node: last selected candidate
+ *
+ * Returns true if the node has been elected as next candidate or false othrwise
+ */
+static bool batadv_is_orig_node_eligible(struct batadv_dat_candidate *res,
+					 int select, batadv_dat_addr_t tmp_max,
+					 batadv_dat_addr_t max,
+					 batadv_dat_addr_t last_max,
+					 struct batadv_orig_node *candidate,
+					 struct batadv_orig_node *max_orig_node)
+{
+	bool ret = false;
+	int j;
+
+	/* Check if this node has already been selected... */
+	for (j = 0; j < select; j++)
+		if (res[j].orig_node == candidate)
+			break;
+	/* ..and possibly skip it */
+	if (j < select)
+		goto out;
+	/* sanity check: has it already been selected? This should not happen */
+	if (tmp_max > last_max)
+		goto out;
+	/* check if during this iteration an originator with a closer dht
+	 * address has already been found
+	 */
+	if (tmp_max < max)
+		goto out;
+	/* this is an hash collision with the temporary selected node. Choose
+	 * the one with the lowest address
+	 */
+	if ((tmp_max == max) &&
+	    (batadv_compare_eth(candidate->orig, max_orig_node->orig) > 0))
+		goto out;
+
+	ret = true;
+out:
+	return ret;
+}
+
+/**
+ * batadv_choose_next_candidate - select the next DHT candidate
+ * @bat_priv: the bat priv with all the soft interface information
+ * @cands: candidates array
+ * @select: number of candidates already present in the array
+ * @ip_key: key to look up in the DHT
+ * @last_max: pointer where the address of the selected candidate will be saved
+ */
+static void batadv_choose_next_candidate(struct batadv_priv *bat_priv,
+					 struct batadv_dat_candidate *cands,
+					 int select, batadv_dat_addr_t ip_key,
+					 batadv_dat_addr_t *last_max)
+{
+	batadv_dat_addr_t max = 0, tmp_max = 0;
+	struct batadv_orig_node *orig_node, *max_orig_node = NULL;
+	struct batadv_hashtable *hash = bat_priv->orig_hash;
+	struct hlist_node *node;
+	struct hlist_head *head;
+	int i;
+
+	/* if no node is eligible as candidate, leave the candidate type as
+	 * NOT_FOUND
+	 */
+	cands[select].type = BATADV_DAT_CANDIDATE_NOT_FOUND;
+
+	/* iterate over the originator list and find the node with closest
+	 * dat_address which has not been selected yet
+	 */
+	for (i = 0; i < hash->size; i++) {
+		head = &hash->table[i];
+
+		rcu_read_lock();
+		hlist_for_each_entry_rcu(orig_node, node, head, hash_entry) {
+			/* the dht space is a ring and addresses are unsigned */
+			tmp_max = BATADV_DAT_ADDR_MAX - orig_node->dat_addr +
+				  ip_key;
+
+			if (!batadv_is_orig_node_eligible(cands, select,
+							  tmp_max, max,
+							  *last_max, orig_node,
+							  max_orig_node))
+				continue;
+
+			if (!atomic_inc_not_zero(&orig_node->refcount))
+				continue;
+
+			max = tmp_max;
+			if (max_orig_node)
+				batadv_orig_node_free_ref(max_orig_node);
+			max_orig_node = orig_node;
+		}
+		rcu_read_unlock();
+	}
+	if (max_orig_node) {
+		cands[select].type = BATADV_DAT_CANDIDATE_ORIG;
+		cands[select].orig_node = max_orig_node;
+		batadv_dbg(BATADV_DBG_DAT, bat_priv,
+			   "dat_select_candidates() %d: selected %pM addr=%u dist=%u\n",
+			   select, max_orig_node->orig, max_orig_node->dat_addr,
+			   max);
+	}
+	*last_max = max;
+}
+
+/**
+ * batadv_dat_select_candidates - selects the nodes which the DHT message has to
+ * be sent to
+ * @bat_priv: the bat priv with all the soft interface information
+ * @ip_dst: ipv4 to look up in the DHT
+ *
+ * An originator O is selected if and only if its DHT_ID value is one of three
+ * closest values (from the LEFT, with wrap around if needed) then the hash
+ * value of the key. ip_dst is the key.
+ *
+ * Returns the candidate array of size BATADV_DAT_CANDIDATE_NUM
+ */
+static struct batadv_dat_candidate *
+batadv_dat_select_candidates(struct batadv_priv *bat_priv, __be32 ip_dst)
+{
+	int select;
+	batadv_dat_addr_t last_max = BATADV_DAT_ADDR_MAX, ip_key;
+	struct batadv_dat_candidate *res;
+
+	if (!bat_priv->orig_hash)
+		return NULL;
+
+	res = kmalloc(BATADV_DAT_CANDIDATES_NUM * sizeof(*res), GFP_ATOMIC);
+	if (!res)
+		return NULL;
+
+	ip_key = (batadv_dat_addr_t)batadv_hash_dat(&ip_dst,
+						    BATADV_DAT_ADDR_MAX);
+
+	batadv_dbg(BATADV_DBG_DAT, bat_priv,
+		   "dat_select_candidates(): IP=%pI4 hash(IP)=%u\n", &ip_dst,
+		   ip_key);
+
+	for (select = 0; select < BATADV_DAT_CANDIDATES_NUM; select++)
+		batadv_choose_next_candidate(bat_priv, res, select, ip_key,
+					     &last_max);
+
+	return res;
+}
+
+/**
+ * batadv_dat_send_data - send a payload to the selected candidates
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: payload to send
+ * @ip: the DHT key
+ * @packet_subtype: unicast4addr packet subtype to use
+ *
+ * In this function the skb is copied by means of pskb_copy() and is sent as
+ * unicast packet to each of the selected candidates
+ *
+ * Returns true if the packet is sent to at least one candidate, false otherwise
+ */
+static bool batadv_dat_send_data(struct batadv_priv *bat_priv,
+				 struct sk_buff *skb, __be32 ip,
+				 int packet_subtype)
+{
+	int i;
+	bool ret = false;
+	int send_status;
+	struct batadv_neigh_node *neigh_node = NULL;
+	struct sk_buff *tmp_skb;
+	struct batadv_dat_candidate *cand;
+
+	cand = batadv_dat_select_candidates(bat_priv, ip);
+	if (!cand)
+		goto out;
+
+	batadv_dbg(BATADV_DBG_DAT, bat_priv, "DHT_SEND for %pI4\n", &ip);
+
+	for (i = 0; i < BATADV_DAT_CANDIDATES_NUM; i++) {
+		if (cand[i].type == BATADV_DAT_CANDIDATE_NOT_FOUND)
+			continue;
+
+		neigh_node = batadv_orig_node_get_router(cand[i].orig_node);
+		if (!neigh_node)
+			goto free_orig;
+
+		tmp_skb = pskb_copy(skb, GFP_ATOMIC);
+		if (!batadv_unicast_4addr_prepare_skb(bat_priv, tmp_skb,
+						      cand[i].orig_node,
+						      packet_subtype)) {
+			kfree_skb(tmp_skb);
+			goto free_neigh;
+		}
+
+		send_status = batadv_send_skb_packet(tmp_skb,
+						     neigh_node->if_incoming,
+						     neigh_node->addr);
+		if (send_status == NET_XMIT_SUCCESS) {
+			/* count the sent packet */
+			switch (packet_subtype) {
+			case BATADV_P_DAT_DHT_GET:
+				batadv_inc_counter(bat_priv,
+						   BATADV_CNT_DAT_GET_TX);
+				break;
+			case BATADV_P_DAT_DHT_PUT:
+				batadv_inc_counter(bat_priv,
+						   BATADV_CNT_DAT_PUT_TX);
+				break;
+			}
+
+			/* packet sent to a candidate: return true */
+			ret = true;
+		}
+free_neigh:
+		batadv_neigh_node_free_ref(neigh_node);
+free_orig:
+		batadv_orig_node_free_ref(cand[i].orig_node);
+	}
+
+out:
+	kfree(cand);
+	return ret;
+}
+
+/**
+ * batadv_dat_hash_free - free the local DAT hash table
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+static void batadv_dat_hash_free(struct batadv_priv *bat_priv)
+{
+	if (!bat_priv->dat.hash)
+		return;
+
+	__batadv_dat_purge(bat_priv, NULL);
+
+	batadv_hash_destroy(bat_priv->dat.hash);
+
+	bat_priv->dat.hash = NULL;
+}
+
+/**
+ * batadv_dat_init - initialise the DAT internals
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+int batadv_dat_init(struct batadv_priv *bat_priv)
+{
+	if (bat_priv->dat.hash)
+		return 0;
+
+	bat_priv->dat.hash = batadv_hash_new(1024);
+
+	if (!bat_priv->dat.hash)
+		return -ENOMEM;
+
+	batadv_dat_start_timer(bat_priv);
+
+	return 0;
+}
+
+/**
+ * batadv_dat_free - free the DAT internals
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+void batadv_dat_free(struct batadv_priv *bat_priv)
+{
+	cancel_delayed_work_sync(&bat_priv->dat.work);
+
+	batadv_dat_hash_free(bat_priv);
+}
+
+/**
+ * batadv_dat_cache_seq_print_text - print the local DAT hash table
+ * @seq: seq file to print on
+ * @offset: not used
+ */
+int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset)
+{
+	struct net_device *net_dev = (struct net_device *)seq->private;
+	struct batadv_priv *bat_priv = netdev_priv(net_dev);
+	struct batadv_hashtable *hash = bat_priv->dat.hash;
+	struct batadv_dat_entry *dat_entry;
+	struct batadv_hard_iface *primary_if;
+	struct hlist_node *node;
+	struct hlist_head *head;
+	unsigned long last_seen_jiffies;
+	int last_seen_msecs, last_seen_secs, last_seen_mins;
+	uint32_t i;
+
+	primary_if = batadv_seq_print_text_primary_if_get(seq);
+	if (!primary_if)
+		goto out;
+
+	seq_printf(seq, "Distributed ARP Table (%s):\n", net_dev->name);
+	seq_printf(seq, "          %-7s          %-13s %5s\n", "IPv4", "MAC",
+		   "last-seen");
+
+	for (i = 0; i < hash->size; i++) {
+		head = &hash->table[i];
+
+		rcu_read_lock();
+		hlist_for_each_entry_rcu(dat_entry, node, head, hash_entry) {
+			last_seen_jiffies = jiffies - dat_entry->last_update;
+			last_seen_msecs = jiffies_to_msecs(last_seen_jiffies);
+			last_seen_mins = last_seen_msecs / 60000;
+			last_seen_msecs = last_seen_msecs % 60000;
+			last_seen_secs = last_seen_msecs / 1000;
+
+			seq_printf(seq, " * %15pI4 %14pM %6i:%02i\n",
+				   &dat_entry->ip, dat_entry->mac_addr,
+				   last_seen_mins, last_seen_secs);
+		}
+		rcu_read_unlock();
+	}
+
+out:
+	if (primary_if)
+		batadv_hardif_free_ref(primary_if);
+	return 0;
+}
+
+/**
+ * batadv_arp_get_type - parse an ARP packet and gets the type
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: packet to analyse
+ * @hdr_size: size of the possible header before the ARP packet in the skb
+ *
+ * Returns the ARP type if the skb contains a valid ARP packet, 0 otherwise
+ */
+static uint16_t batadv_arp_get_type(struct batadv_priv *bat_priv,
+				    struct sk_buff *skb, int hdr_size)
+{
+	struct arphdr *arphdr;
+	struct ethhdr *ethhdr;
+	__be32 ip_src, ip_dst;
+	uint16_t type = 0;
+
+	/* pull the ethernet header */
+	if (unlikely(!pskb_may_pull(skb, hdr_size + ETH_HLEN)))
+		goto out;
+
+	ethhdr = (struct ethhdr *)(skb->data + hdr_size);
+
+	if (ethhdr->h_proto != htons(ETH_P_ARP))
+		goto out;
+
+	/* pull the ARP payload */
+	if (unlikely(!pskb_may_pull(skb, hdr_size + ETH_HLEN +
+				    arp_hdr_len(skb->dev))))
+		goto out;
+
+	arphdr = (struct arphdr *)(skb->data + hdr_size + ETH_HLEN);
+
+	/* Check whether the ARP packet carries a valid
+	 * IP information
+	 */
+	if (arphdr->ar_hrd != htons(ARPHRD_ETHER))
+		goto out;
+
+	if (arphdr->ar_pro != htons(ETH_P_IP))
+		goto out;
+
+	if (arphdr->ar_hln != ETH_ALEN)
+		goto out;
+
+	if (arphdr->ar_pln != 4)
+		goto out;
+
+	/* Check for bad reply/request. If the ARP message is not sane, DAT
+	 * will simply ignore it
+	 */
+	ip_src = batadv_arp_ip_src(skb, hdr_size);
+	ip_dst = batadv_arp_ip_dst(skb, hdr_size);
+	if (ipv4_is_loopback(ip_src) || ipv4_is_multicast(ip_src) ||
+	    ipv4_is_loopback(ip_dst) || ipv4_is_multicast(ip_dst))
+		goto out;
+
+	type = ntohs(arphdr->ar_op);
+out:
+	return type;
+}
+
+/**
+ * batadv_dat_snoop_outgoing_arp_request - snoop the ARP request and try to
+ * answer using DAT
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: packet to check
+ *
+ * Returns true if the message has been sent to the dht candidates, false
+ * otherwise. In case of true the message has to be enqueued to permit the
+ * fallback
+ */
+bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
+					   struct sk_buff *skb)
+{
+	uint16_t type = 0;
+	__be32 ip_dst, ip_src;
+	uint8_t *hw_src;
+	bool ret = false;
+	struct batadv_dat_entry *dat_entry = NULL;
+	struct sk_buff *skb_new;
+	struct batadv_hard_iface *primary_if = NULL;
+
+	if (!atomic_read(&bat_priv->distributed_arp_table))
+		goto out;
+
+	type = batadv_arp_get_type(bat_priv, skb, 0);
+	/* If the node gets an ARP_REQUEST it has to send a DHT_GET unicast
+	 * message to the selected DHT candidates
+	 */
+	if (type != ARPOP_REQUEST)
+		goto out;
+
+	batadv_dbg_arp(bat_priv, skb, type, 0, "Parsing outgoing ARP REQUEST");
+
+	ip_src = batadv_arp_ip_src(skb, 0);
+	hw_src = batadv_arp_hw_src(skb, 0);
+	ip_dst = batadv_arp_ip_dst(skb, 0);
+
+	batadv_dat_entry_add(bat_priv, ip_src, hw_src);
+
+	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst);
+	if (dat_entry) {
+		primary_if = batadv_primary_if_get_selected(bat_priv);
+		if (!primary_if)
+			goto out;
+
+		skb_new = arp_create(ARPOP_REPLY, ETH_P_ARP, ip_src,
+				     primary_if->soft_iface, ip_dst, hw_src,
+				     dat_entry->mac_addr, hw_src);
+		if (!skb_new)
+			goto out;
+
+		skb_reset_mac_header(skb_new);
+		skb_new->protocol = eth_type_trans(skb_new,
+						   primary_if->soft_iface);
+		bat_priv->stats.rx_packets++;
+		bat_priv->stats.rx_bytes += skb->len + ETH_HLEN;
+		primary_if->soft_iface->last_rx = jiffies;
+
+		netif_rx(skb_new);
+		batadv_dbg(BATADV_DBG_DAT, bat_priv, "ARP request replied locally\n");
+		ret = true;
+	} else {
+		/* Send the request on the DHT */
+		ret = batadv_dat_send_data(bat_priv, skb, ip_dst,
+					   BATADV_P_DAT_DHT_GET);
+	}
+out:
+	if (dat_entry)
+		batadv_dat_entry_free_ref(dat_entry);
+	if (primary_if)
+		batadv_hardif_free_ref(primary_if);
+	return ret;
+}
+
+/**
+ * batadv_dat_snoop_incoming_arp_request - snoop the ARP request and try to
+ * answer using the local DAT storage
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: packet to check
+ * @hdr_size: size of the encapsulation header
+ *
+ * Returns true if the request has been answered, false otherwise
+ */
+bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
+					   struct sk_buff *skb, int hdr_size)
+{
+	uint16_t type;
+	__be32 ip_src, ip_dst;
+	uint8_t *hw_src;
+	struct sk_buff *skb_new;
+	struct batadv_hard_iface *primary_if = NULL;
+	struct batadv_dat_entry *dat_entry = NULL;
+	bool ret = false;
+	int err;
+
+	if (!atomic_read(&bat_priv->distributed_arp_table))
+		goto out;
+
+	type = batadv_arp_get_type(bat_priv, skb, hdr_size);
+	if (type != ARPOP_REQUEST)
+		goto out;
+
+	hw_src = batadv_arp_hw_src(skb, hdr_size);
+	ip_src = batadv_arp_ip_src(skb, hdr_size);
+	ip_dst = batadv_arp_ip_dst(skb, hdr_size);
+
+	batadv_dbg_arp(bat_priv, skb, type, hdr_size,
+		       "Parsing incoming ARP REQUEST");
+
+	batadv_dat_entry_add(bat_priv, ip_src, hw_src);
+
+	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst);
+	if (!dat_entry)
+		goto out;
+
+	primary_if = batadv_primary_if_get_selected(bat_priv);
+	if (!primary_if)
+		goto out;
+
+	skb_new = arp_create(ARPOP_REPLY, ETH_P_ARP, ip_src,
+			     primary_if->soft_iface, ip_dst, hw_src,
+			     dat_entry->mac_addr, hw_src);
+
+	if (!skb_new)
+		goto out;
+
+	/* to preserve backwards compatibility, here the node has to answer
+	 * using the same packet type it received for the request. This is due
+	 * to that if a node is not using the 4addr packet format it may not
+	 * support it.
+	 */
+	if (hdr_size == sizeof(struct batadv_unicast_4addr_packet))
+		err = batadv_unicast_4addr_send_skb(bat_priv, skb_new,
+						    BATADV_P_DAT_CACHE_REPLY);
+	else
+		err = batadv_unicast_send_skb(bat_priv, skb_new);
+
+	if (!err) {
+		batadv_inc_counter(bat_priv, BATADV_CNT_DAT_CACHED_REPLY_TX);
+		ret = true;
+	}
+out:
+	if (dat_entry)
+		batadv_dat_entry_free_ref(dat_entry);
+	if (primary_if)
+		batadv_hardif_free_ref(primary_if);
+	if (ret)
+		kfree_skb(skb);
+	return ret;
+}
+
+/**
+ * batadv_dat_snoop_outgoing_arp_reply - snoop the ARP reply and fill the DHT
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: packet to check
+ */
+void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
+					 struct sk_buff *skb)
+{
+	uint16_t type;
+	__be32 ip_src, ip_dst;
+	uint8_t *hw_src, *hw_dst;
+
+	if (!atomic_read(&bat_priv->distributed_arp_table))
+		return;
+
+	type = batadv_arp_get_type(bat_priv, skb, 0);
+	if (type != ARPOP_REPLY)
+		return;
+
+	batadv_dbg_arp(bat_priv, skb, type, 0, "Parsing outgoing ARP REPLY");
+
+	hw_src = batadv_arp_hw_src(skb, 0);
+	ip_src = batadv_arp_ip_src(skb, 0);
+	hw_dst = batadv_arp_hw_dst(skb, 0);
+	ip_dst = batadv_arp_ip_dst(skb, 0);
+
+	batadv_dat_entry_add(bat_priv, ip_src, hw_src);
+	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst);
+
+	/* Send the ARP reply to the candidates for both the IP addresses that
+	 * the node got within the ARP reply
+	 */
+	batadv_dat_send_data(bat_priv, skb, ip_src, BATADV_P_DAT_DHT_PUT);
+	batadv_dat_send_data(bat_priv, skb, ip_dst, BATADV_P_DAT_DHT_PUT);
+}
+/**
+ * batadv_dat_snoop_incoming_arp_reply - snoop the ARP reply and fill the local
+ * DAT storage only
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: packet to check
+ * @hdr_size: siaze of the encapsulation header
+ */
+bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
+					 struct sk_buff *skb, int hdr_size)
+{
+	uint16_t type;
+	__be32 ip_src, ip_dst;
+	uint8_t *hw_src, *hw_dst;
+	bool ret = false;
+
+	if (!atomic_read(&bat_priv->distributed_arp_table))
+		goto out;
+
+	type = batadv_arp_get_type(bat_priv, skb, hdr_size);
+	if (type != ARPOP_REPLY)
+		goto out;
+
+	batadv_dbg_arp(bat_priv, skb, type, hdr_size,
+		       "Parsing incoming ARP REPLY");
+
+	hw_src = batadv_arp_hw_src(skb, hdr_size);
+	ip_src = batadv_arp_ip_src(skb, hdr_size);
+	hw_dst = batadv_arp_hw_dst(skb, hdr_size);
+	ip_dst = batadv_arp_ip_dst(skb, hdr_size);
+
+	/* Update our internal cache with both the IP addresses the node got
+	 * within the ARP reply
+	 */
+	batadv_dat_entry_add(bat_priv, ip_src, hw_src);
+	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst);
+
+	/* if this REPLY is directed to a client of mine, let's deliver the
+	 * packet to the interface
+	 */
+	ret = !batadv_is_my_client(bat_priv, hw_dst);
+out:
+	/* if ret == false -> packet has to be delivered to the interface */
+	return ret;
+}
+
+/**
+ * batadv_dat_drop_broadcast_packet - check if an ARP request has to be dropped
+ * (because the node has already got the reply via DAT) or not
+ * @bat_priv: the bat priv with all the soft interface information
+ * @forw_packet: the broadcast packet
+ *
+ * Returns true if the node can drop the packet, false otherwise
+ */
+bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
+				      struct batadv_forw_packet *forw_packet)
+{
+	uint16_t type;
+	__be32 ip_dst;
+	struct batadv_dat_entry *dat_entry = NULL;
+	bool ret = false;
+	const size_t bcast_len = sizeof(struct batadv_bcast_packet);
+
+	if (!atomic_read(&bat_priv->distributed_arp_table))
+		goto out;
+
+	/* If this packet is an ARP_REQUEST and the node already has the
+	 * information that it is going to ask, then the packet can be dropped
+	 */
+	if (forw_packet->num_packets)
+		goto out;
+
+	type = batadv_arp_get_type(bat_priv, forw_packet->skb, bcast_len);
+	if (type != ARPOP_REQUEST)
+		goto out;
+
+	ip_dst = batadv_arp_ip_dst(forw_packet->skb, bcast_len);
+	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst);
+	/* check if the node already got this entry */
+	if (!dat_entry) {
+		batadv_dbg(BATADV_DBG_DAT, bat_priv,
+			   "ARP Request for %pI4: fallback\n", &ip_dst);
+		goto out;
+	}
+
+	batadv_dbg(BATADV_DBG_DAT, bat_priv,
+		   "ARP Request for %pI4: fallback prevented\n", &ip_dst);
+	ret = true;
+
+out:
+	if (dat_entry)
+		batadv_dat_entry_free_ref(dat_entry);
+	return ret;
+}
diff --git a/net/batman-adv/distributed-arp-table.h b/net/batman-adv/distributed-arp-table.h
new file mode 100644
index 0000000..d060c03
--- /dev/null
+++ b/net/batman-adv/distributed-arp-table.h
@@ -0,0 +1,167 @@
+/* Copyright (C) 2011-2012 B.A.T.M.A.N. contributors:
+ *
+ * Antonio Quartulli
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#ifndef _NET_BATMAN_ADV_ARP_H_
+#define _NET_BATMAN_ADV_ARP_H_
+
+#ifdef CONFIG_BATMAN_ADV_DAT
+
+#include "types.h"
+#include "originator.h"
+
+#include <linux/if_arp.h>
+
+#define BATADV_DAT_ADDR_MAX ((batadv_dat_addr_t)~(batadv_dat_addr_t)0)
+
+bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
+					   struct sk_buff *skb);
+bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
+					   struct sk_buff *skb, int hdr_size);
+void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
+					 struct sk_buff *skb);
+bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
+					 struct sk_buff *skb, int hdr_size);
+bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
+				      struct batadv_forw_packet *forw_packet);
+
+/**
+ * batadv_dat_init_orig_node_addr - assign a DAT address to the orig_node
+ * @orig_node: the node to assign the DAT address to
+ */
+static inline void
+batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node)
+{
+	uint32_t addr;
+
+	addr = batadv_choose_orig(orig_node->orig, BATADV_DAT_ADDR_MAX);
+	orig_node->dat_addr = (batadv_dat_addr_t)addr;
+}
+
+/**
+ * batadv_dat_init_own_addr - assign a DAT address to the node itself
+ * @bat_priv: the bat priv with all the soft interface information
+ * @primary_if: a pointer to the primary interface
+ */
+static inline void
+batadv_dat_init_own_addr(struct batadv_priv *bat_priv,
+			 struct batadv_hard_iface *primary_if)
+{
+	uint32_t addr;
+
+	addr = batadv_choose_orig(primary_if->net_dev->dev_addr,
+				  BATADV_DAT_ADDR_MAX);
+
+	bat_priv->dat.addr = (batadv_dat_addr_t)addr;
+}
+
+int batadv_dat_init(struct batadv_priv *bat_priv);
+void batadv_dat_free(struct batadv_priv *bat_priv);
+int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset);
+
+/**
+ * batadv_dat_inc_counter - increment the correct DAT packet counter
+ * @bat_priv: the bat priv with all the soft interface information
+ * @subtype: the 4addr subtype of the packet to be counted
+ *
+ * Updates the ethtool statistics for the received packet if it is a DAT subtype
+ */
+static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv,
+					  uint8_t subtype)
+{
+	switch (subtype) {
+	case BATADV_P_DAT_DHT_GET:
+		batadv_inc_counter(bat_priv,
+				   BATADV_CNT_DAT_GET_RX);
+		break;
+	case BATADV_P_DAT_DHT_PUT:
+		batadv_inc_counter(bat_priv,
+				   BATADV_CNT_DAT_PUT_RX);
+		break;
+	}
+}
+
+#else
+
+static inline bool
+batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
+				      struct sk_buff *skb)
+{
+	return false;
+}
+
+static inline bool
+batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
+				      struct sk_buff *skb, int hdr_size)
+{
+	return false;
+}
+
+static inline bool
+batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
+				    struct sk_buff *skb)
+{
+	return false;
+}
+
+static inline bool
+batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
+				    struct sk_buff *skb, int hdr_size)
+{
+	return false;
+}
+
+static inline bool
+batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
+				 struct batadv_forw_packet *forw_packet)
+{
+	return false;
+}
+
+static inline void
+batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node)
+{
+}
+
+static inline void batadv_dat_init_own_addr(struct batadv_priv *bat_priv,
+					    struct batadv_hard_iface *iface)
+{
+}
+
+static inline void batadv_arp_change_timeout(struct net_device *soft_iface,
+					     const char *name)
+{
+}
+
+static inline int batadv_dat_init(struct batadv_priv *bat_priv)
+{
+	return 0;
+}
+
+static inline void batadv_dat_free(struct batadv_priv *bat_priv)
+{
+}
+
+static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv,
+					  uint8_t subtype)
+{
+}
+
+#endif /* CONFIG_BATMAN_ADV_DAT */
+
+#endif /* _NET_BATMAN_ADV_ARP_H_ */
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index 15d67ab..dd07c7e 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -477,22 +477,11 @@ int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset)
 	struct batadv_hard_iface *primary_if;
 	struct batadv_gw_node *gw_node;
 	struct hlist_node *node;
-	int gw_count = 0, ret = 0;
+	int gw_count = 0;
 
-	primary_if = batadv_primary_if_get_selected(bat_priv);
-	if (!primary_if) {
-		ret = seq_printf(seq,
-				 "BATMAN mesh %s disabled - please specify interfaces to enable it\n",
-				 net_dev->name);
+	primary_if = batadv_seq_print_text_primary_if_get(seq);
+	if (!primary_if)
 		goto out;
-	}
-
-	if (primary_if->if_status != BATADV_IF_ACTIVE) {
-		ret = seq_printf(seq,
-				 "BATMAN mesh %s disabled - primary interface not active\n",
-				 net_dev->name);
-		goto out;
-	}
 
 	seq_printf(seq,
 		   "      %-12s (%s/%i) %17s [%10s]: gw_class ... [B.A.T.M.A.N. adv %s, MainIF/MAC: %s/%pM (%s)]\n",
@@ -519,7 +508,7 @@ int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset)
 out:
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
-	return ret;
+	return 0;
 }
 
 static bool batadv_is_type_dhcprequest(struct sk_buff *skb, int header_len)
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index d112fd6..f1d37cd 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -18,6 +18,7 @@
  */
 
 #include "main.h"
+#include "distributed-arp-table.h"
 #include "hard-interface.h"
 #include "soft-interface.h"
 #include "send.h"
@@ -29,6 +30,7 @@
 #include "bridge_loop_avoidance.h"
 
 #include <linux/if_arp.h>
+#include <linux/if_ether.h>
 
 void batadv_hardif_free_rcu(struct rcu_head *rcu)
 {
@@ -58,6 +60,45 @@ out:
 	return hard_iface;
 }
 
+/**
+ * batadv_is_on_batman_iface - check if a device is a batman iface descendant
+ * @net_dev: the device to check
+ *
+ * If the user creates any virtual device on top of a batman-adv interface, it
+ * is important to prevent this new interface to be used to create a new mesh
+ * network (this behaviour would lead to a batman-over-batman configuration).
+ * This function recursively checks all the fathers of the device passed as
+ * argument looking for a batman-adv soft interface.
+ *
+ * Returns true if the device is descendant of a batman-adv mesh interface (or
+ * if it is a batman-adv interface itself), false otherwise
+ */
+static bool batadv_is_on_batman_iface(const struct net_device *net_dev)
+{
+	struct net_device *parent_dev;
+	bool ret;
+
+	/* check if this is a batman-adv mesh interface */
+	if (batadv_softif_is_valid(net_dev))
+		return true;
+
+	/* no more parents..stop recursion */
+	if (net_dev->iflink == net_dev->ifindex)
+		return false;
+
+	/* recurse over the parent device */
+	parent_dev = dev_get_by_index(&init_net, net_dev->iflink);
+	/* if we got a NULL parent_dev there is something broken.. */
+	if (WARN(!parent_dev, "Cannot find parent device"))
+		return false;
+
+	ret = batadv_is_on_batman_iface(parent_dev);
+
+	if (parent_dev)
+		dev_put(parent_dev);
+	return ret;
+}
+
 static int batadv_is_valid_iface(const struct net_device *net_dev)
 {
 	if (net_dev->flags & IFF_LOOPBACK)
@@ -70,7 +111,7 @@ static int batadv_is_valid_iface(const struct net_device *net_dev)
 		return 0;
 
 	/* no batman over batman */
-	if (batadv_softif_is_valid(net_dev))
+	if (batadv_is_on_batman_iface(net_dev))
 		return 0;
 
 	return 1;
@@ -109,6 +150,8 @@ static void batadv_primary_if_update_addr(struct batadv_priv *bat_priv,
 	if (!primary_if)
 		goto out;
 
+	batadv_dat_init_own_addr(bat_priv, primary_if);
+
 	skb = bat_priv->vis.my_info->skb_packet;
 	vis_packet = (struct batadv_vis_packet *)skb->data;
 	memcpy(vis_packet->vis_orig, primary_if->net_dev->dev_addr, ETH_ALEN);
@@ -269,7 +312,7 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
 {
 	struct batadv_priv *bat_priv;
 	struct net_device *soft_iface;
-	__be16 ethertype = __constant_htons(BATADV_ETH_P_BATMAN);
+	__be16 ethertype = __constant_htons(ETH_P_BATMAN);
 	int ret;
 
 	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)
@@ -450,8 +493,8 @@ batadv_hardif_add_interface(struct net_device *net_dev)
 	/* This can't be called via a bat_priv callback because
 	 * we have no bat_priv yet.
 	 */
-	atomic_set(&hard_iface->seqno, 1);
-	hard_iface->packet_buff = NULL;
+	atomic_set(&hard_iface->bat_iv.ogm_seqno, 1);
+	hard_iface->bat_iv.ogm_buff = NULL;
 
 	return hard_iface;
 
diff --git a/net/batman-adv/hash.h b/net/batman-adv/hash.h
index 977de9c..e053339 100644
--- a/net/batman-adv/hash.h
+++ b/net/batman-adv/hash.h
@@ -82,6 +82,28 @@ static inline void batadv_hash_delete(struct batadv_hashtable *hash,
 }
 
 /**
+ *	batadv_hash_bytes - hash some bytes and add them to the previous hash
+ *	@hash: previous hash value
+ *	@data: data to be hashed
+ *	@size: number of bytes to be hashed
+ *
+ *	Returns the new hash value.
+ */
+static inline uint32_t batadv_hash_bytes(uint32_t hash, void *data,
+					 uint32_t size)
+{
+	const unsigned char *key = data;
+	int i;
+
+	for (i = 0; i < size; i++) {
+		hash += key[i];
+		hash += (hash << 10);
+		hash ^= (hash >> 6);
+	}
+	return hash;
+}
+
+/**
  *	batadv_hash_add - adds data to the hashtable
  *	@hash: storage hash table
  *	@compare: callback to determine if 2 hash elements are identical
diff --git a/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c
index bde3cf747..87ca809 100644
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -42,12 +42,16 @@ static int batadv_socket_open(struct inode *inode, struct file *file)
 	unsigned int i;
 	struct batadv_socket_client *socket_client;
 
+	if (!try_module_get(THIS_MODULE))
+		return -EBUSY;
+
 	nonseekable_open(inode, file);
 
 	socket_client = kmalloc(sizeof(*socket_client), GFP_KERNEL);
-
-	if (!socket_client)
+	if (!socket_client) {
+		module_put(THIS_MODULE);
 		return -ENOMEM;
+	}
 
 	for (i = 0; i < ARRAY_SIZE(batadv_socket_client_hash); i++) {
 		if (!batadv_socket_client_hash[i]) {
@@ -59,6 +63,7 @@ static int batadv_socket_open(struct inode *inode, struct file *file)
 	if (i == ARRAY_SIZE(batadv_socket_client_hash)) {
 		pr_err("Error - can't add another packet client: maximum number of clients reached\n");
 		kfree(socket_client);
+		module_put(THIS_MODULE);
 		return -EXFULL;
 	}
 
@@ -71,7 +76,6 @@ static int batadv_socket_open(struct inode *inode, struct file *file)
 
 	file->private_data = socket_client;
 
-	batadv_inc_module_count();
 	return 0;
 }
 
@@ -96,7 +100,7 @@ static int batadv_socket_release(struct inode *inode, struct file *file)
 	spin_unlock_bh(&socket_client->lock);
 
 	kfree(socket_client);
-	batadv_dec_module_count();
+	module_put(THIS_MODULE);
 
 	return 0;
 }
@@ -173,13 +177,13 @@ static ssize_t batadv_socket_write(struct file *file, const char __user *buff,
 	if (len >= sizeof(struct batadv_icmp_packet_rr))
 		packet_len = sizeof(struct batadv_icmp_packet_rr);
 
-	skb = dev_alloc_skb(packet_len + ETH_HLEN);
+	skb = dev_alloc_skb(packet_len + ETH_HLEN + NET_IP_ALIGN);
 	if (!skb) {
 		len = -ENOMEM;
 		goto out;
 	}
 
-	skb_reserve(skb, ETH_HLEN);
+	skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
 	icmp_packet = (struct batadv_icmp_packet_rr *)skb_put(skb, packet_len);
 
 	if (copy_from_user(icmp_packet, buff, packet_len)) {
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index b4aa470..f65a222 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -17,6 +17,8 @@
  * 02110-1301, USA
  */
 
+#include <linux/crc32c.h>
+#include <linux/highmem.h>
 #include "main.h"
 #include "sysfs.h"
 #include "debugfs.h"
@@ -29,6 +31,7 @@
 #include "hard-interface.h"
 #include "gateway_client.h"
 #include "bridge_loop_avoidance.h"
+#include "distributed-arp-table.h"
 #include "vis.h"
 #include "hash.h"
 #include "bat_algo.h"
@@ -128,6 +131,10 @@ int batadv_mesh_init(struct net_device *soft_iface)
 	if (ret < 0)
 		goto err;
 
+	ret = batadv_dat_init(bat_priv);
+	if (ret < 0)
+		goto err;
+
 	atomic_set(&bat_priv->gw.reselect, 0);
 	atomic_set(&bat_priv->mesh_state, BATADV_MESH_ACTIVE);
 
@@ -155,21 +162,13 @@ void batadv_mesh_free(struct net_device *soft_iface)
 
 	batadv_bla_free(bat_priv);
 
+	batadv_dat_free(bat_priv);
+
 	free_percpu(bat_priv->bat_counters);
 
 	atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE);
 }
 
-void batadv_inc_module_count(void)
-{
-	try_module_get(THIS_MODULE);
-}
-
-void batadv_dec_module_count(void)
-{
-	module_put(THIS_MODULE);
-}
-
 int batadv_is_my_mac(const uint8_t *addr)
 {
 	const struct batadv_hard_iface *hard_iface;
@@ -188,6 +187,42 @@ int batadv_is_my_mac(const uint8_t *addr)
 	return 0;
 }
 
+/**
+ * batadv_seq_print_text_primary_if_get - called from debugfs table printing
+ *  function that requires the primary interface
+ * @seq: debugfs table seq_file struct
+ *
+ * Returns primary interface if found or NULL otherwise.
+ */
+struct batadv_hard_iface *
+batadv_seq_print_text_primary_if_get(struct seq_file *seq)
+{
+	struct net_device *net_dev = (struct net_device *)seq->private;
+	struct batadv_priv *bat_priv = netdev_priv(net_dev);
+	struct batadv_hard_iface *primary_if;
+
+	primary_if = batadv_primary_if_get_selected(bat_priv);
+
+	if (!primary_if) {
+		seq_printf(seq,
+			   "BATMAN mesh %s disabled - please specify interfaces to enable it\n",
+			   net_dev->name);
+		goto out;
+	}
+
+	if (primary_if->if_status == BATADV_IF_ACTIVE)
+		goto out;
+
+	seq_printf(seq,
+		   "BATMAN mesh %s disabled - primary interface not active\n",
+		   net_dev->name);
+	batadv_hardif_free_ref(primary_if);
+	primary_if = NULL;
+
+out:
+	return primary_if;
+}
+
 static int batadv_recv_unhandled_packet(struct sk_buff *skb,
 					struct batadv_hard_iface *recv_if)
 {
@@ -274,6 +309,8 @@ static void batadv_recv_handler_init(void)
 
 	/* batman icmp packet */
 	batadv_rx_handler[BATADV_ICMP] = batadv_recv_icmp_packet;
+	/* unicast with 4 addresses packet */
+	batadv_rx_handler[BATADV_UNICAST_4ADDR] = batadv_recv_unicast_packet;
 	/* unicast packet */
 	batadv_rx_handler[BATADV_UNICAST] = batadv_recv_unicast_packet;
 	/* fragmented unicast packet */
@@ -385,6 +422,38 @@ int batadv_algo_seq_print_text(struct seq_file *seq, void *offset)
 	return 0;
 }
 
+/**
+ * batadv_skb_crc32 - calculate CRC32 of the whole packet and skip bytes in
+ *  the header
+ * @skb: skb pointing to fragmented socket buffers
+ * @payload_ptr: Pointer to position inside the head buffer of the skb
+ *  marking the start of the data to be CRC'ed
+ *
+ * payload_ptr must always point to an address in the skb head buffer and not to
+ * a fragment.
+ */
+__be32 batadv_skb_crc32(struct sk_buff *skb, u8 *payload_ptr)
+{
+	u32 crc = 0;
+	unsigned int from;
+	unsigned int to = skb->len;
+	struct skb_seq_state st;
+	const u8 *data;
+	unsigned int len;
+	unsigned int consumed = 0;
+
+	from = (unsigned int)(payload_ptr - skb->data);
+
+	skb_prepare_seq_read(skb, from, to, &st);
+	while ((len = skb_seq_read(consumed, &data, &st)) != 0) {
+		crc = crc32c(crc, data, len);
+		consumed += len;
+	}
+	skb_abort_seq_read(&st);
+
+	return htonl(crc);
+}
+
 static int batadv_param_set_ra(const char *val, const struct kernel_param *kp)
 {
 	struct batadv_algo_ops *bat_algo_ops;
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index d57b746..2f85577 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -26,7 +26,7 @@
 #define BATADV_DRIVER_DEVICE "batman-adv"
 
 #ifndef BATADV_SOURCE_VERSION
-#define BATADV_SOURCE_VERSION "2012.4.0"
+#define BATADV_SOURCE_VERSION "2012.5.0"
 #endif
 
 /* B.A.T.M.A.N. parameters */
@@ -44,6 +44,7 @@
 #define BATADV_TT_LOCAL_TIMEOUT 3600000 /* in milliseconds */
 #define BATADV_TT_CLIENT_ROAM_TIMEOUT 600000 /* in milliseconds */
 #define BATADV_TT_CLIENT_TEMP_TIMEOUT 600000 /* in milliseconds */
+#define BATADV_DAT_ENTRY_TIMEOUT (5*60000) /* 5 mins in milliseconds */
 /* sliding packet range of received originator messages in sequence numbers
  * (should be a multiple of our word size)
  */
@@ -73,6 +74,11 @@
 
 #define BATADV_LOG_BUF_LEN 8192	  /* has to be a power of 2 */
 
+/* msecs after which an ARP_REQUEST is sent in broadcast as fallback */
+#define ARP_REQ_DELAY 250
+/* numbers of originator to contact for any PUT/GET DHT operation */
+#define BATADV_DAT_CANDIDATES_NUM 3
+
 #define BATADV_VIS_INTERVAL 5000	/* 5 seconds */
 
 /* how much worse secondary interfaces may be to be considered as bonding
@@ -89,6 +95,7 @@
 #define BATADV_BLA_PERIOD_LENGTH	10000	/* 10 seconds */
 #define BATADV_BLA_BACKBONE_TIMEOUT	(BATADV_BLA_PERIOD_LENGTH * 3)
 #define BATADV_BLA_CLAIM_TIMEOUT	(BATADV_BLA_PERIOD_LENGTH * 10)
+#define BATADV_BLA_WAIT_PERIODS		3
 
 #define BATADV_DUPLIST_SIZE		16
 #define BATADV_DUPLIST_TIMEOUT		500	/* 500 ms */
@@ -117,6 +124,9 @@ enum batadv_uev_type {
 
 #define BATADV_GW_THRESHOLD	50
 
+#define BATADV_DAT_CANDIDATE_NOT_FOUND	0
+#define BATADV_DAT_CANDIDATE_ORIG	1
+
 /* Debug Messages */
 #ifdef pr_fmt
 #undef pr_fmt
@@ -150,9 +160,9 @@ extern struct workqueue_struct *batadv_event_workqueue;
 
 int batadv_mesh_init(struct net_device *soft_iface);
 void batadv_mesh_free(struct net_device *soft_iface);
-void batadv_inc_module_count(void);
-void batadv_dec_module_count(void);
 int batadv_is_my_mac(const uint8_t *addr);
+struct batadv_hard_iface *
+batadv_seq_print_text_primary_if_get(struct seq_file *seq);
 int batadv_batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
 			   struct packet_type *ptype,
 			   struct net_device *orig_dev);
@@ -164,14 +174,24 @@ void batadv_recv_handler_unregister(uint8_t packet_type);
 int batadv_algo_register(struct batadv_algo_ops *bat_algo_ops);
 int batadv_algo_select(struct batadv_priv *bat_priv, char *name);
 int batadv_algo_seq_print_text(struct seq_file *seq, void *offset);
+__be32 batadv_skb_crc32(struct sk_buff *skb, u8 *payload_ptr);
 
-/* all messages related to routing / flooding / broadcasting / etc */
+/**
+ * enum batadv_dbg_level - available log levels
+ * @BATADV_DBG_BATMAN: OGM and TQ computations related messages
+ * @BATADV_DBG_ROUTES: route added / changed / deleted
+ * @BATADV_DBG_TT: translation table messages
+ * @BATADV_DBG_BLA: bridge loop avoidance messages
+ * @BATADV_DBG_DAT: ARP snooping and DAT related messages
+ * @BATADV_DBG_ALL: the union of all the above log levels
+ */
 enum batadv_dbg_level {
 	BATADV_DBG_BATMAN = BIT(0),
-	BATADV_DBG_ROUTES = BIT(1), /* route added / changed / deleted */
-	BATADV_DBG_TT	  = BIT(2), /* translation table operations */
-	BATADV_DBG_BLA    = BIT(3), /* bridge loop avoidance */
-	BATADV_DBG_ALL    = 15,
+	BATADV_DBG_ROUTES = BIT(1),
+	BATADV_DBG_TT	  = BIT(2),
+	BATADV_DBG_BLA    = BIT(3),
+	BATADV_DBG_DAT    = BIT(4),
+	BATADV_DBG_ALL    = 31,
 };
 
 #ifdef CONFIG_BATMAN_ADV_DEBUG
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index ac9bdf8..8c32cf1 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -18,6 +18,7 @@
  */
 
 #include "main.h"
+#include "distributed-arp-table.h"
 #include "originator.h"
 #include "hash.h"
 #include "translation-table.h"
@@ -220,9 +221,9 @@ struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
 	atomic_set(&orig_node->refcount, 2);
 
 	orig_node->tt_initialised = false;
-	orig_node->tt_poss_change = false;
 	orig_node->bat_priv = bat_priv;
 	memcpy(orig_node->orig, addr, ETH_ALEN);
+	batadv_dat_init_orig_node_addr(orig_node);
 	orig_node->router = NULL;
 	orig_node->tt_crc = 0;
 	atomic_set(&orig_node->last_ttvn, 0);
@@ -415,23 +416,10 @@ int batadv_orig_seq_print_text(struct seq_file *seq, void *offset)
 	int last_seen_msecs;
 	unsigned long last_seen_jiffies;
 	uint32_t i;
-	int ret = 0;
 
-	primary_if = batadv_primary_if_get_selected(bat_priv);
-
-	if (!primary_if) {
-		ret = seq_printf(seq,
-				 "BATMAN mesh %s disabled - please specify interfaces to enable it\n",
-				 net_dev->name);
-		goto out;
-	}
-
-	if (primary_if->if_status != BATADV_IF_ACTIVE) {
-		ret = seq_printf(seq,
-				 "BATMAN mesh %s disabled - primary interface not active\n",
-				 net_dev->name);
+	primary_if = batadv_seq_print_text_primary_if_get(seq);
+	if (!primary_if)
 		goto out;
-	}
 
 	seq_printf(seq, "[B.A.T.M.A.N. adv %s, MainIF/MAC: %s/%pM (%s)]\n",
 		   BATADV_SOURCE_VERSION, primary_if->net_dev->name,
@@ -485,7 +473,7 @@ next:
 out:
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
-	return ret;
+	return 0;
 }
 
 static int batadv_orig_node_add_if(struct batadv_orig_node *orig_node,
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 2d23a14..cb6405bf 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -20,17 +20,30 @@
 #ifndef _NET_BATMAN_ADV_PACKET_H_
 #define _NET_BATMAN_ADV_PACKET_H_
 
-#define BATADV_ETH_P_BATMAN  0x4305 /* unofficial/not registered Ethertype */
-
 enum batadv_packettype {
-	BATADV_IV_OGM	    = 0x01,
-	BATADV_ICMP	    = 0x02,
-	BATADV_UNICAST	    = 0x03,
-	BATADV_BCAST	    = 0x04,
-	BATADV_VIS	    = 0x05,
-	BATADV_UNICAST_FRAG = 0x06,
-	BATADV_TT_QUERY	    = 0x07,
-	BATADV_ROAM_ADV	    = 0x08,
+	BATADV_IV_OGM		= 0x01,
+	BATADV_ICMP		= 0x02,
+	BATADV_UNICAST		= 0x03,
+	BATADV_BCAST		= 0x04,
+	BATADV_VIS		= 0x05,
+	BATADV_UNICAST_FRAG	= 0x06,
+	BATADV_TT_QUERY		= 0x07,
+	BATADV_ROAM_ADV		= 0x08,
+	BATADV_UNICAST_4ADDR	= 0x09,
+};
+
+/**
+ * enum batadv_subtype - packet subtype for unicast4addr
+ * @BATADV_P_DATA: user payload
+ * @BATADV_P_DAT_DHT_GET: DHT request message
+ * @BATADV_P_DAT_DHT_PUT: DHT store message
+ * @BATADV_P_DAT_CACHE_REPLY: ARP reply generated by DAT
+ */
+enum batadv_subtype {
+	BATADV_P_DATA			= 0x01,
+	BATADV_P_DAT_DHT_GET		= 0x02,
+	BATADV_P_DAT_DHT_PUT		= 0x03,
+	BATADV_P_DAT_CACHE_REPLY	= 0x04,
 };
 
 /* this file is included by batctl which needs these defines */
@@ -106,13 +119,16 @@ struct batadv_bla_claim_dst {
 	uint8_t magic[3];	/* FF:43:05 */
 	uint8_t type;		/* bla_claimframe */
 	__be16 group;		/* group id */
-} __packed;
+};
 
 struct batadv_header {
 	uint8_t  packet_type;
 	uint8_t  version;  /* batman version field */
 	uint8_t  ttl;
-} __packed;
+	/* the parent struct has to add a byte after the header to make
+	 * everything 4 bytes aligned again
+	 */
+};
 
 struct batadv_ogm_packet {
 	struct batadv_header header;
@@ -137,7 +153,7 @@ struct batadv_icmp_packet {
 	__be16   seqno;
 	uint8_t  uid;
 	uint8_t  reserved;
-} __packed;
+};
 
 #define BATADV_RR_LEN 16
 
@@ -153,13 +169,44 @@ struct batadv_icmp_packet_rr {
 	uint8_t  uid;
 	uint8_t  rr_cur;
 	uint8_t  rr[BATADV_RR_LEN][ETH_ALEN];
-} __packed;
+};
+
+/* All packet headers in front of an ethernet header have to be completely
+ * divisible by 2 but not by 4 to make the payload after the ethernet
+ * header again 4 bytes boundary aligned.
+ *
+ * A packing of 2 is necessary to avoid extra padding at the end of the struct
+ * caused by a structure member which is larger than two bytes. Otherwise
+ * the structure would not fulfill the previously mentioned rule to avoid the
+ * misalignment of the payload after the ethernet header. It may also lead to
+ * leakage of information when the padding it not initialized before sending.
+ */
+#pragma pack(2)
 
 struct batadv_unicast_packet {
 	struct batadv_header header;
 	uint8_t  ttvn; /* destination translation table version number */
 	uint8_t  dest[ETH_ALEN];
-} __packed;
+	/* "4 bytes boundary + 2 bytes" long to make the payload after the
+	 * following ethernet header again 4 bytes boundary aligned
+	 */
+};
+
+/**
+ * struct batadv_unicast_4addr_packet - extended unicast packet
+ * @u: common unicast packet header
+ * @src: address of the source
+ * @subtype: packet subtype
+ */
+struct batadv_unicast_4addr_packet {
+	struct batadv_unicast_packet u;
+	uint8_t src[ETH_ALEN];
+	uint8_t subtype;
+	uint8_t reserved;
+	/* "4 bytes boundary + 2 bytes" long to make the payload after the
+	 * following ethernet header again 4 bytes boundary aligned
+	 */
+};
 
 struct batadv_unicast_frag_packet {
 	struct batadv_header header;
@@ -176,7 +223,12 @@ struct batadv_bcast_packet {
 	uint8_t  reserved;
 	__be32   seqno;
 	uint8_t  orig[ETH_ALEN];
-} __packed;
+	/* "4 bytes boundary + 2 bytes" long to make the payload after the
+	 * following ethernet header again 4 bytes boundary aligned
+	 */
+};
+
+#pragma pack()
 
 struct batadv_vis_packet {
 	struct batadv_header header;
@@ -187,7 +239,7 @@ struct batadv_vis_packet {
 	uint8_t  vis_orig[ETH_ALEN];	/* originator reporting its neighbors */
 	uint8_t  target_orig[ETH_ALEN]; /* who should receive this packet */
 	uint8_t  sender_orig[ETH_ALEN]; /* who sent or forwarded this packet */
-} __packed;
+};
 
 struct batadv_tt_query_packet {
 	struct batadv_header header;
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 376b4cc..1aa1722 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -28,6 +28,7 @@
 #include "vis.h"
 #include "unicast.h"
 #include "bridge_loop_avoidance.h"
+#include "distributed-arp-table.h"
 
 static int batadv_route_unicast_packet(struct sk_buff *skb,
 				       struct batadv_hard_iface *recv_if);
@@ -284,7 +285,6 @@ static int batadv_recv_my_icmp_packet(struct batadv_priv *bat_priv,
 {
 	struct batadv_hard_iface *primary_if = NULL;
 	struct batadv_orig_node *orig_node = NULL;
-	struct batadv_neigh_node *router = NULL;
 	struct batadv_icmp_packet_rr *icmp_packet;
 	int ret = NET_RX_DROP;
 
@@ -306,10 +306,6 @@ static int batadv_recv_my_icmp_packet(struct batadv_priv *bat_priv,
 	if (!orig_node)
 		goto out;
 
-	router = batadv_orig_node_get_router(orig_node);
-	if (!router)
-		goto out;
-
 	/* create a copy of the skb, if needed, to modify it. */
 	if (skb_cow(skb, ETH_HLEN) < 0)
 		goto out;
@@ -321,14 +317,12 @@ static int batadv_recv_my_icmp_packet(struct batadv_priv *bat_priv,
 	icmp_packet->msg_type = BATADV_ECHO_REPLY;
 	icmp_packet->header.ttl = BATADV_TTL;
 
-	batadv_send_skb_packet(skb, router->if_incoming, router->addr);
-	ret = NET_RX_SUCCESS;
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL))
+		ret = NET_RX_SUCCESS;
 
 out:
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
-	if (router)
-		batadv_neigh_node_free_ref(router);
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
 	return ret;
@@ -339,7 +333,6 @@ static int batadv_recv_icmp_ttl_exceeded(struct batadv_priv *bat_priv,
 {
 	struct batadv_hard_iface *primary_if = NULL;
 	struct batadv_orig_node *orig_node = NULL;
-	struct batadv_neigh_node *router = NULL;
 	struct batadv_icmp_packet *icmp_packet;
 	int ret = NET_RX_DROP;
 
@@ -361,10 +354,6 @@ static int batadv_recv_icmp_ttl_exceeded(struct batadv_priv *bat_priv,
 	if (!orig_node)
 		goto out;
 
-	router = batadv_orig_node_get_router(orig_node);
-	if (!router)
-		goto out;
-
 	/* create a copy of the skb, if needed, to modify it. */
 	if (skb_cow(skb, ETH_HLEN) < 0)
 		goto out;
@@ -376,14 +365,12 @@ static int batadv_recv_icmp_ttl_exceeded(struct batadv_priv *bat_priv,
 	icmp_packet->msg_type = BATADV_TTL_EXCEEDED;
 	icmp_packet->header.ttl = BATADV_TTL;
 
-	batadv_send_skb_packet(skb, router->if_incoming, router->addr);
-	ret = NET_RX_SUCCESS;
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL))
+		ret = NET_RX_SUCCESS;
 
 out:
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
-	if (router)
-		batadv_neigh_node_free_ref(router);
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
 	return ret;
@@ -397,7 +384,6 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 	struct batadv_icmp_packet_rr *icmp_packet;
 	struct ethhdr *ethhdr;
 	struct batadv_orig_node *orig_node = NULL;
-	struct batadv_neigh_node *router = NULL;
 	int hdr_size = sizeof(struct batadv_icmp_packet);
 	int ret = NET_RX_DROP;
 
@@ -446,10 +432,6 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 	if (!orig_node)
 		goto out;
 
-	router = batadv_orig_node_get_router(orig_node);
-	if (!router)
-		goto out;
-
 	/* create a copy of the skb, if needed, to modify it. */
 	if (skb_cow(skb, ETH_HLEN) < 0)
 		goto out;
@@ -460,12 +442,10 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 	icmp_packet->header.ttl--;
 
 	/* route it */
-	batadv_send_skb_packet(skb, router->if_incoming, router->addr);
-	ret = NET_RX_SUCCESS;
+	if (batadv_send_skb_to_orig(skb, orig_node, recv_if))
+		ret = NET_RX_SUCCESS;
 
 out:
-	if (router)
-		batadv_neigh_node_free_ref(router);
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
 	return ret;
@@ -549,25 +529,18 @@ batadv_find_ifalter_router(struct batadv_orig_node *primary_orig,
 		if (tmp_neigh_node->if_incoming == recv_if)
 			continue;
 
-		if (!atomic_inc_not_zero(&tmp_neigh_node->refcount))
+		if (router && tmp_neigh_node->tq_avg <= router->tq_avg)
 			continue;
 
-		/* if we don't have a router yet
-		 * or this one is better, choose it.
-		 */
-		if ((!router) ||
-		    (tmp_neigh_node->tq_avg > router->tq_avg)) {
-			/* decrement refcount of
-			 * previously selected router
-			 */
-			if (router)
-				batadv_neigh_node_free_ref(router);
+		if (!atomic_inc_not_zero(&tmp_neigh_node->refcount))
+			continue;
 
-			router = tmp_neigh_node;
-			atomic_inc_not_zero(&router->refcount);
-		}
+		/* decrement refcount of previously selected router */
+		if (router)
+			batadv_neigh_node_free_ref(router);
 
-		batadv_neigh_node_free_ref(tmp_neigh_node);
+		/* we found a better router (or at least one valid router) */
+		router = tmp_neigh_node;
 	}
 
 	/* use the first candidate if nothing was found. */
@@ -687,21 +660,8 @@ int batadv_recv_roam_adv(struct sk_buff *skb, struct batadv_hard_iface *recv_if)
 	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
 	struct batadv_roam_adv_packet *roam_adv_packet;
 	struct batadv_orig_node *orig_node;
-	struct ethhdr *ethhdr;
-
-	/* drop packet if it has not necessary minimum size */
-	if (unlikely(!pskb_may_pull(skb,
-				    sizeof(struct batadv_roam_adv_packet))))
-		goto out;
-
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
-
-	/* packet with unicast indication but broadcast recipient */
-	if (is_broadcast_ether_addr(ethhdr->h_dest))
-		goto out;
 
-	/* packet with broadcast sender address */
-	if (is_broadcast_ether_addr(ethhdr->h_source))
+	if (batadv_check_unicast_packet(skb, sizeof(*roam_adv_packet)) < 0)
 		goto out;
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_ROAM_ADV_RX);
@@ -730,12 +690,6 @@ int batadv_recv_roam_adv(struct sk_buff *skb, struct batadv_hard_iface *recv_if)
 			     BATADV_TT_CLIENT_ROAM,
 			     atomic_read(&orig_node->last_ttvn) + 1);
 
-	/* Roaming phase starts: I have new information but the ttvn has not
-	 * been incremented yet. This flag will make me check all the incoming
-	 * packets for the correct destination.
-	 */
-	bat_priv->tt.poss_change = true;
-
 	batadv_orig_node_free_ref(orig_node);
 out:
 	/* returning NET_RX_DROP will make the caller function kfree the skb */
@@ -907,8 +861,8 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
 			   skb->len + ETH_HLEN);
 
 	/* route it */
-	batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
-	ret = NET_RX_SUCCESS;
+	if (batadv_send_skb_to_orig(skb, orig_node, recv_if))
+		ret = NET_RX_SUCCESS;
 
 out:
 	if (neigh_node)
@@ -918,80 +872,161 @@ out:
 	return ret;
 }
 
+/**
+ * batadv_reroute_unicast_packet - update the unicast header for re-routing
+ * @bat_priv: the bat priv with all the soft interface information
+ * @unicast_packet: the unicast header to be updated
+ * @dst_addr: the payload destination
+ *
+ * Search the translation table for dst_addr and update the unicast header with
+ * the new corresponding information (originator address where the destination
+ * client currently is and its known TTVN)
+ *
+ * Returns true if the packet header has been updated, false otherwise
+ */
+static bool
+batadv_reroute_unicast_packet(struct batadv_priv *bat_priv,
+			      struct batadv_unicast_packet *unicast_packet,
+			      uint8_t *dst_addr)
+{
+	struct batadv_orig_node *orig_node = NULL;
+	struct batadv_hard_iface *primary_if = NULL;
+	bool ret = false;
+	uint8_t *orig_addr, orig_ttvn;
+
+	if (batadv_is_my_client(bat_priv, dst_addr)) {
+		primary_if = batadv_primary_if_get_selected(bat_priv);
+		if (!primary_if)
+			goto out;
+		orig_addr = primary_if->net_dev->dev_addr;
+		orig_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
+	} else {
+		orig_node = batadv_transtable_search(bat_priv, NULL, dst_addr);
+		if (!orig_node)
+			goto out;
+
+		if (batadv_compare_eth(orig_node->orig, unicast_packet->dest))
+			goto out;
+
+		orig_addr = orig_node->orig;
+		orig_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
+	}
+
+	/* update the packet header */
+	memcpy(unicast_packet->dest, orig_addr, ETH_ALEN);
+	unicast_packet->ttvn = orig_ttvn;
+
+	ret = true;
+out:
+	if (primary_if)
+		batadv_hardif_free_ref(primary_if);
+	if (orig_node)
+		batadv_orig_node_free_ref(orig_node);
+
+	return ret;
+}
+
 static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
 				     struct sk_buff *skb) {
-	uint8_t curr_ttvn;
+	uint8_t curr_ttvn, old_ttvn;
 	struct batadv_orig_node *orig_node;
 	struct ethhdr *ethhdr;
 	struct batadv_hard_iface *primary_if;
 	struct batadv_unicast_packet *unicast_packet;
-	bool tt_poss_change;
 	int is_old_ttvn;
 
-	/* I could need to modify it */
-	if (skb_cow(skb, sizeof(struct batadv_unicast_packet)) < 0)
+	/* check if there is enough data before accessing it */
+	if (pskb_may_pull(skb, sizeof(*unicast_packet) + ETH_HLEN) < 0)
+		return 0;
+
+	/* create a copy of the skb (in case of for re-routing) to modify it. */
+	if (skb_cow(skb, sizeof(*unicast_packet)) < 0)
 		return 0;
 
 	unicast_packet = (struct batadv_unicast_packet *)skb->data;
+	ethhdr = (struct ethhdr *)(skb->data + sizeof(*unicast_packet));
 
-	if (batadv_is_my_mac(unicast_packet->dest)) {
-		tt_poss_change = bat_priv->tt.poss_change;
-		curr_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
-	} else {
+	/* check if the destination client was served by this node and it is now
+	 * roaming. In this case, it means that the node has got a ROAM_ADV
+	 * message and that it knows the new destination in the mesh to re-route
+	 * the packet to
+	 */
+	if (batadv_tt_local_client_is_roaming(bat_priv, ethhdr->h_dest)) {
+		if (batadv_reroute_unicast_packet(bat_priv, unicast_packet,
+						  ethhdr->h_dest))
+			net_ratelimited_function(batadv_dbg, BATADV_DBG_TT,
+						 bat_priv,
+						 "Rerouting unicast packet to %pM (dst=%pM): Local Roaming\n",
+						 unicast_packet->dest,
+						 ethhdr->h_dest);
+		/* at this point the mesh destination should have been
+		 * substituted with the originator address found in the global
+		 * table. If not, let the packet go untouched anyway because
+		 * there is nothing the node can do
+		 */
+		return 1;
+	}
+
+	/* retrieve the TTVN known by this node for the packet destination. This
+	 * value is used later to check if the node which sent (or re-routed
+	 * last time) the packet had an updated information or not
+	 */
+	curr_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
+	if (!batadv_is_my_mac(unicast_packet->dest)) {
 		orig_node = batadv_orig_hash_find(bat_priv,
 						  unicast_packet->dest);
-
+		/* if it is not possible to find the orig_node representing the
+		 * destination, the packet can immediately be dropped as it will
+		 * not be possible to deliver it
+		 */
 		if (!orig_node)
 			return 0;
 
 		curr_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
-		tt_poss_change = orig_node->tt_poss_change;
 		batadv_orig_node_free_ref(orig_node);
 	}
 
-	/* Check whether I have to reroute the packet */
+	/* check if the TTVN contained in the packet is fresher than what the
+	 * node knows
+	 */
 	is_old_ttvn = batadv_seq_before(unicast_packet->ttvn, curr_ttvn);
-	if (is_old_ttvn || tt_poss_change) {
-		/* check if there is enough data before accessing it */
-		if (pskb_may_pull(skb, sizeof(struct batadv_unicast_packet) +
-				  ETH_HLEN) < 0)
-			return 0;
+	if (!is_old_ttvn)
+		return 1;
 
-		ethhdr = (struct ethhdr *)(skb->data + sizeof(*unicast_packet));
+	old_ttvn = unicast_packet->ttvn;
+	/* the packet was forged based on outdated network information. Its
+	 * destination can possibly be updated and forwarded towards the new
+	 * target host
+	 */
+	if (batadv_reroute_unicast_packet(bat_priv, unicast_packet,
+					  ethhdr->h_dest)) {
+		net_ratelimited_function(batadv_dbg, BATADV_DBG_TT, bat_priv,
+					 "Rerouting unicast packet to %pM (dst=%pM): TTVN mismatch old_ttvn=%u new_ttvn=%u\n",
+					 unicast_packet->dest, ethhdr->h_dest,
+					 old_ttvn, curr_ttvn);
+		return 1;
+	}
 
-		/* we don't have an updated route for this client, so we should
-		 * not try to reroute the packet!!
-		 */
-		if (batadv_tt_global_client_is_roaming(bat_priv,
-						       ethhdr->h_dest))
-			return 1;
+	/* the packet has not been re-routed: either the destination is
+	 * currently served by this node or there is no destination at all and
+	 * it is possible to drop the packet
+	 */
+	if (!batadv_is_my_client(bat_priv, ethhdr->h_dest))
+		return 0;
 
-		orig_node = batadv_transtable_search(bat_priv, NULL,
-						     ethhdr->h_dest);
-
-		if (!orig_node) {
-			if (!batadv_is_my_client(bat_priv, ethhdr->h_dest))
-				return 0;
-			primary_if = batadv_primary_if_get_selected(bat_priv);
-			if (!primary_if)
-				return 0;
-			memcpy(unicast_packet->dest,
-			       primary_if->net_dev->dev_addr, ETH_ALEN);
-			batadv_hardif_free_ref(primary_if);
-		} else {
-			memcpy(unicast_packet->dest, orig_node->orig,
-			       ETH_ALEN);
-			curr_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
-			batadv_orig_node_free_ref(orig_node);
-		}
+	/* update the header in order to let the packet be delivered to this
+	 * node's soft interface
+	 */
+	primary_if = batadv_primary_if_get_selected(bat_priv);
+	if (!primary_if)
+		return 0;
 
-		batadv_dbg(BATADV_DBG_ROUTES, bat_priv,
-			   "TTVN mismatch (old_ttvn %u new_ttvn %u)! Rerouting unicast packet (for %pM) to %pM\n",
-			   unicast_packet->ttvn, curr_ttvn, ethhdr->h_dest,
-			   unicast_packet->dest);
+	memcpy(unicast_packet->dest, primary_if->net_dev->dev_addr, ETH_ALEN);
+
+	batadv_hardif_free_ref(primary_if);
+
+	unicast_packet->ttvn = curr_ttvn;
 
-		unicast_packet->ttvn = curr_ttvn;
-	}
 	return 1;
 }
 
@@ -1000,7 +1035,19 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
 {
 	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
 	struct batadv_unicast_packet *unicast_packet;
+	struct batadv_unicast_4addr_packet *unicast_4addr_packet;
+	uint8_t *orig_addr;
+	struct batadv_orig_node *orig_node = NULL;
 	int hdr_size = sizeof(*unicast_packet);
+	bool is4addr;
+
+	unicast_packet = (struct batadv_unicast_packet *)skb->data;
+	unicast_4addr_packet = (struct batadv_unicast_4addr_packet *)skb->data;
+
+	is4addr = unicast_packet->header.packet_type == BATADV_UNICAST_4ADDR;
+	/* the caller function should have already pulled 2 bytes */
+	if (is4addr)
+		hdr_size = sizeof(*unicast_4addr_packet);
 
 	if (batadv_check_unicast_packet(skb, hdr_size) < 0)
 		return NET_RX_DROP;
@@ -1008,12 +1055,28 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
 	if (!batadv_check_unicast_ttvn(bat_priv, skb))
 		return NET_RX_DROP;
 
-	unicast_packet = (struct batadv_unicast_packet *)skb->data;
-
 	/* packet for me */
 	if (batadv_is_my_mac(unicast_packet->dest)) {
+		if (is4addr) {
+			batadv_dat_inc_counter(bat_priv,
+					       unicast_4addr_packet->subtype);
+			orig_addr = unicast_4addr_packet->src;
+			orig_node = batadv_orig_hash_find(bat_priv, orig_addr);
+		}
+
+		if (batadv_dat_snoop_incoming_arp_request(bat_priv, skb,
+							  hdr_size))
+			goto rx_success;
+		if (batadv_dat_snoop_incoming_arp_reply(bat_priv, skb,
+							hdr_size))
+			goto rx_success;
+
 		batadv_interface_rx(recv_if->soft_iface, skb, recv_if, hdr_size,
-				    NULL);
+				    orig_node);
+
+rx_success:
+		if (orig_node)
+			batadv_orig_node_free_ref(orig_node);
 
 		return NET_RX_SUCCESS;
 	}
@@ -1050,8 +1113,17 @@ int batadv_recv_ucast_frag_packet(struct sk_buff *skb,
 		if (!new_skb)
 			return NET_RX_SUCCESS;
 
+		if (batadv_dat_snoop_incoming_arp_request(bat_priv, new_skb,
+							  hdr_size))
+			goto rx_success;
+		if (batadv_dat_snoop_incoming_arp_reply(bat_priv, new_skb,
+							hdr_size))
+			goto rx_success;
+
 		batadv_interface_rx(recv_if->soft_iface, new_skb, recv_if,
 				    sizeof(struct batadv_unicast_packet), NULL);
+
+rx_success:
 		return NET_RX_SUCCESS;
 	}
 
@@ -1124,14 +1196,8 @@ int batadv_recv_bcast_packet(struct sk_buff *skb,
 
 	spin_unlock_bh(&orig_node->bcast_seqno_lock);
 
-	/* keep skb linear for crc calculation */
-	if (skb_linearize(skb) < 0)
-		goto out;
-
-	bcast_packet = (struct batadv_bcast_packet *)skb->data;
-
 	/* check whether this has been sent by another originator before */
-	if (batadv_bla_check_bcast_duplist(bat_priv, bcast_packet, skb->len))
+	if (batadv_bla_check_bcast_duplist(bat_priv, skb))
 		goto out;
 
 	/* rebroadcast packet */
@@ -1143,9 +1209,16 @@ int batadv_recv_bcast_packet(struct sk_buff *skb,
 	if (batadv_bla_is_backbone_gw(skb, orig_node, hdr_size))
 		goto out;
 
+	if (batadv_dat_snoop_incoming_arp_request(bat_priv, skb, hdr_size))
+		goto rx_success;
+	if (batadv_dat_snoop_incoming_arp_reply(bat_priv, skb, hdr_size))
+		goto rx_success;
+
 	/* broadcast for me */
 	batadv_interface_rx(recv_if->soft_iface, skb, recv_if, hdr_size,
 			    orig_node);
+
+rx_success:
 	ret = NET_RX_SUCCESS;
 	goto out;
 
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 570a8bc..4425af9 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -18,6 +18,7 @@
  */
 
 #include "main.h"
+#include "distributed-arp-table.h"
 #include "send.h"
 #include "routing.h"
 #include "translation-table.h"
@@ -27,6 +28,8 @@
 #include "gateway_common.h"
 #include "originator.h"
 
+#include <linux/if_ether.h>
+
 static void batadv_send_outstanding_bcast_packet(struct work_struct *work);
 
 /* send out an already prepared packet to the given address via the
@@ -59,11 +62,11 @@ int batadv_send_skb_packet(struct sk_buff *skb,
 	ethhdr = (struct ethhdr *)skb_mac_header(skb);
 	memcpy(ethhdr->h_source, hard_iface->net_dev->dev_addr, ETH_ALEN);
 	memcpy(ethhdr->h_dest, dst_addr, ETH_ALEN);
-	ethhdr->h_proto = __constant_htons(BATADV_ETH_P_BATMAN);
+	ethhdr->h_proto = __constant_htons(ETH_P_BATMAN);
 
 	skb_set_network_header(skb, ETH_HLEN);
 	skb->priority = TC_PRIO_CONTROL;
-	skb->protocol = __constant_htons(BATADV_ETH_P_BATMAN);
+	skb->protocol = __constant_htons(ETH_P_BATMAN);
 
 	skb->dev = hard_iface->net_dev;
 
@@ -77,6 +80,39 @@ send_skb_err:
 	return NET_XMIT_DROP;
 }
 
+/**
+ * batadv_send_skb_to_orig - Lookup next-hop and transmit skb.
+ * @skb: Packet to be transmitted.
+ * @orig_node: Final destination of the packet.
+ * @recv_if: Interface used when receiving the packet (can be NULL).
+ *
+ * Looks up the best next-hop towards the passed originator and passes the
+ * skb on for preparation of MAC header. If the packet originated from this
+ * host, NULL can be passed as recv_if and no interface alternating is
+ * attempted.
+ *
+ * Returns TRUE on success; FALSE otherwise.
+ */
+bool batadv_send_skb_to_orig(struct sk_buff *skb,
+			     struct batadv_orig_node *orig_node,
+			     struct batadv_hard_iface *recv_if)
+{
+	struct batadv_priv *bat_priv = orig_node->bat_priv;
+	struct batadv_neigh_node *neigh_node;
+
+	/* batadv_find_router() increases neigh_nodes refcount if found. */
+	neigh_node = batadv_find_router(bat_priv, orig_node, recv_if);
+	if (!neigh_node)
+		return false;
+
+	/* route it */
+	batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
+
+	batadv_neigh_node_free_ref(neigh_node);
+
+	return true;
+}
+
 void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface)
 {
 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
@@ -209,6 +245,9 @@ static void batadv_send_outstanding_bcast_packet(struct work_struct *work)
 	if (atomic_read(&bat_priv->mesh_state) == BATADV_MESH_DEACTIVATING)
 		goto out;
 
+	if (batadv_dat_drop_broadcast_packet(bat_priv, forw_packet))
+		goto out;
+
 	/* rebroadcast packet */
 	rcu_read_lock();
 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
diff --git a/net/batman-adv/send.h b/net/batman-adv/send.h
index 643329b..0078dec 100644
--- a/net/batman-adv/send.h
+++ b/net/batman-adv/send.h
@@ -23,6 +23,9 @@
 int batadv_send_skb_packet(struct sk_buff *skb,
 			   struct batadv_hard_iface *hard_iface,
 			   const uint8_t *dst_addr);
+bool batadv_send_skb_to_orig(struct sk_buff *skb,
+			     struct batadv_orig_node *orig_node,
+			     struct batadv_hard_iface *recv_if);
 void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface);
 int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv,
 				    const struct sk_buff *skb,
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index ce0684a..6b548fd 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -20,6 +20,7 @@
 #include "main.h"
 #include "soft-interface.h"
 #include "hard-interface.h"
+#include "distributed-arp-table.h"
 #include "routing.h"
 #include "send.h"
 #include "debugfs.h"
@@ -33,6 +34,7 @@
 #include <linux/ethtool.h>
 #include <linux/etherdevice.h>
 #include <linux/if_vlan.h>
+#include <linux/if_ether.h>
 #include "unicast.h"
 #include "bridge_loop_avoidance.h"
 
@@ -145,14 +147,17 @@ static int batadv_interface_tx(struct sk_buff *skb,
 	struct batadv_hard_iface *primary_if = NULL;
 	struct batadv_bcast_packet *bcast_packet;
 	struct vlan_ethhdr *vhdr;
-	__be16 ethertype = __constant_htons(BATADV_ETH_P_BATMAN);
-	static const uint8_t stp_addr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00, 0x00,
-						   0x00};
+	__be16 ethertype = __constant_htons(ETH_P_BATMAN);
+	static const uint8_t stp_addr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00,
+						   0x00, 0x00};
+	static const uint8_t ectp_addr[ETH_ALEN] = {0xCF, 0x00, 0x00, 0x00,
+						    0x00, 0x00};
 	unsigned int header_len = 0;
 	int data_len = skb->len, ret;
 	short vid __maybe_unused = -1;
 	bool do_bcast = false;
 	uint32_t seqno;
+	unsigned long brd_delay = 1;
 
 	if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE)
 		goto dropped;
@@ -168,7 +173,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
 			break;
 
 		/* fall through */
-	case BATADV_ETH_P_BATMAN:
+	case ETH_P_BATMAN:
 		goto dropped;
 	}
 
@@ -180,10 +185,16 @@ static int batadv_interface_tx(struct sk_buff *skb,
 
 	/* don't accept stp packets. STP does not help in meshes.
 	 * better use the bridge loop avoidance ...
+	 *
+	 * The same goes for ECTP sent at least by some Cisco Switches,
+	 * it might confuse the mesh when used with bridge loop avoidance.
 	 */
 	if (batadv_compare_eth(ethhdr->h_dest, stp_addr))
 		goto dropped;
 
+	if (batadv_compare_eth(ethhdr->h_dest, ectp_addr))
+		goto dropped;
+
 	if (is_multicast_ether_addr(ethhdr->h_dest)) {
 		do_bcast = true;
 
@@ -216,6 +227,13 @@ static int batadv_interface_tx(struct sk_buff *skb,
 		if (!primary_if)
 			goto dropped;
 
+		/* in case of ARP request, we do not immediately broadcasti the
+		 * packet, instead we first wait for DAT to try to retrieve the
+		 * correct ARP entry
+		 */
+		if (batadv_dat_snoop_outgoing_arp_request(bat_priv, skb))
+			brd_delay = msecs_to_jiffies(ARP_REQ_DELAY);
+
 		if (batadv_skb_head_push(skb, sizeof(*bcast_packet)) < 0)
 			goto dropped;
 
@@ -237,7 +255,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
 		seqno = atomic_inc_return(&bat_priv->bcast_seqno);
 		bcast_packet->seqno = htonl(seqno);
 
-		batadv_add_bcast_packet_to_list(bat_priv, skb, 1);
+		batadv_add_bcast_packet_to_list(bat_priv, skb, brd_delay);
 
 		/* a copy is stored in the bcast list, therefore removing
 		 * the original skb.
@@ -252,7 +270,12 @@ static int batadv_interface_tx(struct sk_buff *skb,
 				goto dropped;
 		}
 
-		ret = batadv_unicast_send_skb(skb, bat_priv);
+		if (batadv_dat_snoop_outgoing_arp_request(bat_priv, skb))
+			goto dropped;
+
+		batadv_dat_snoop_outgoing_arp_reply(bat_priv, skb);
+
+		ret = batadv_unicast_send_skb(bat_priv, skb);
 		if (ret != 0)
 			goto dropped_freed;
 	}
@@ -280,7 +303,7 @@ void batadv_interface_rx(struct net_device *soft_iface,
 	struct vlan_ethhdr *vhdr;
 	struct batadv_header *batadv_header = (struct batadv_header *)skb->data;
 	short vid __maybe_unused = -1;
-	__be16 ethertype = __constant_htons(BATADV_ETH_P_BATMAN);
+	__be16 ethertype = __constant_htons(ETH_P_BATMAN);
 	bool is_bcast;
 
 	is_bcast = (batadv_header->packet_type == BATADV_BCAST);
@@ -303,7 +326,7 @@ void batadv_interface_rx(struct net_device *soft_iface,
 			break;
 
 		/* fall through */
-	case BATADV_ETH_P_BATMAN:
+	case ETH_P_BATMAN:
 		goto dropped;
 	}
 
@@ -347,7 +370,51 @@ out:
 	return;
 }
 
+/* batman-adv network devices have devices nesting below it and are a special
+ * "super class" of normal network devices; split their locks off into a
+ * separate class since they always nest.
+ */
+static struct lock_class_key batadv_netdev_xmit_lock_key;
+static struct lock_class_key batadv_netdev_addr_lock_key;
+
+/**
+ * batadv_set_lockdep_class_one - Set lockdep class for a single tx queue
+ * @dev: device which owns the tx queue
+ * @txq: tx queue to modify
+ * @_unused: always NULL
+ */
+static void batadv_set_lockdep_class_one(struct net_device *dev,
+					 struct netdev_queue *txq,
+					 void *_unused)
+{
+	lockdep_set_class(&txq->_xmit_lock, &batadv_netdev_xmit_lock_key);
+}
+
+/**
+ * batadv_set_lockdep_class - Set txq and addr_list lockdep class
+ * @dev: network device to modify
+ */
+static void batadv_set_lockdep_class(struct net_device *dev)
+{
+	lockdep_set_class(&dev->addr_list_lock, &batadv_netdev_addr_lock_key);
+	netdev_for_each_tx_queue(dev, batadv_set_lockdep_class_one, NULL);
+}
+
+/**
+ * batadv_softif_init - Late stage initialization of soft interface
+ * @dev: registered network device to modify
+ *
+ * Returns error code on failures
+ */
+static int batadv_softif_init(struct net_device *dev)
+{
+	batadv_set_lockdep_class(dev);
+
+	return 0;
+}
+
 static const struct net_device_ops batadv_netdev_ops = {
+	.ndo_init = batadv_softif_init,
 	.ndo_open = batadv_interface_open,
 	.ndo_stop = batadv_interface_release,
 	.ndo_get_stats = batadv_interface_stats,
@@ -414,6 +481,9 @@ struct net_device *batadv_softif_create(const char *name)
 	atomic_set(&bat_priv->aggregated_ogms, 1);
 	atomic_set(&bat_priv->bonding, 0);
 	atomic_set(&bat_priv->bridge_loop_avoidance, 0);
+#ifdef CONFIG_BATMAN_ADV_DAT
+	atomic_set(&bat_priv->distributed_arp_table, 1);
+#endif
 	atomic_set(&bat_priv->ap_isolation, 0);
 	atomic_set(&bat_priv->vis_mode, BATADV_VIS_TYPE_CLIENT_UPDATE);
 	atomic_set(&bat_priv->gw_mode, BATADV_GW_MODE_OFF);
@@ -436,7 +506,6 @@ struct net_device *batadv_softif_create(const char *name)
 #endif
 	bat_priv->tt.last_changeset = NULL;
 	bat_priv->tt.last_changeset_len = 0;
-	bat_priv->tt.poss_change = false;
 
 	bat_priv->primary_if = NULL;
 	bat_priv->num_ifaces = 0;
@@ -556,6 +625,13 @@ static const struct {
 	{ "tt_response_rx" },
 	{ "tt_roam_adv_tx" },
 	{ "tt_roam_adv_rx" },
+#ifdef CONFIG_BATMAN_ADV_DAT
+	{ "dat_get_tx" },
+	{ "dat_get_rx" },
+	{ "dat_put_tx" },
+	{ "dat_put_rx" },
+	{ "dat_cached_reply_tx" },
+#endif
 };
 
 static void batadv_get_strings(struct net_device *dev, uint32_t stringset,
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index 66518c7..84a55cb 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -20,6 +20,7 @@
 #include "main.h"
 #include "sysfs.h"
 #include "translation-table.h"
+#include "distributed-arp-table.h"
 #include "originator.h"
 #include "hard-interface.h"
 #include "gateway_common.h"
@@ -122,55 +123,6 @@ ssize_t batadv_show_##_name(struct kobject *kobj,			\
 			   batadv_store_##_name)
 
 
-#define BATADV_ATTR_HIF_STORE_UINT(_name, _min, _max, _post_func)	\
-ssize_t batadv_store_##_name(struct kobject *kobj,			\
-			     struct attribute *attr, char *buff,	\
-			     size_t count)				\
-{									\
-	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);	\
-	struct batadv_hard_iface *hard_iface;				\
-	ssize_t length;							\
-									\
-	hard_iface = batadv_hardif_get_by_netdev(net_dev);		\
-	if (!hard_iface)						\
-		return 0;						\
-									\
-	length = __batadv_store_uint_attr(buff, count, _min, _max,	\
-					  _post_func, attr,		\
-					  &hard_iface->_name, net_dev);	\
-									\
-	batadv_hardif_free_ref(hard_iface);				\
-	return length;							\
-}
-
-#define BATADV_ATTR_HIF_SHOW_UINT(_name)				\
-ssize_t batadv_show_##_name(struct kobject *kobj,			\
-			    struct attribute *attr, char *buff)		\
-{									\
-	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);	\
-	struct batadv_hard_iface *hard_iface;				\
-	ssize_t length;							\
-									\
-	hard_iface = batadv_hardif_get_by_netdev(net_dev);		\
-	if (!hard_iface)						\
-		return 0;						\
-									\
-	length = sprintf(buff, "%i\n", atomic_read(&hard_iface->_name));\
-									\
-	batadv_hardif_free_ref(hard_iface);				\
-	return length;							\
-}
-
-/* Use this, if you are going to set [name] in hard_iface to an
- * unsigned integer value
- */
-#define BATADV_ATTR_HIF_UINT(_name, _mode, _min, _max, _post_func)	\
-	static BATADV_ATTR_HIF_STORE_UINT(_name, _min, _max, _post_func)\
-	static BATADV_ATTR_HIF_SHOW_UINT(_name)				\
-	static BATADV_ATTR(_name, _mode, batadv_show_##_name,		\
-			   batadv_store_##_name)
-
-
 static int batadv_store_bool_attr(char *buff, size_t count,
 				  struct net_device *net_dev,
 				  const char *attr_name, atomic_t *attr)
@@ -469,6 +421,9 @@ BATADV_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL);
 #ifdef CONFIG_BATMAN_ADV_BLA
 BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, NULL);
 #endif
+#ifdef CONFIG_BATMAN_ADV_DAT
+BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, NULL);
+#endif
 BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu);
 BATADV_ATTR_SIF_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL);
 static BATADV_ATTR(vis_mode, S_IRUGO | S_IWUSR, batadv_show_vis_mode,
@@ -494,6 +449,9 @@ static struct batadv_attribute *batadv_mesh_attrs[] = {
 #ifdef CONFIG_BATMAN_ADV_BLA
 	&batadv_attr_bridge_loop_avoidance,
 #endif
+#ifdef CONFIG_BATMAN_ADV_DAT
+	&batadv_attr_distributed_arp_table,
+#endif
 	&batadv_attr_fragmentation,
 	&batadv_attr_ap_isolation,
 	&batadv_attr_vis_mode,
@@ -730,7 +688,7 @@ int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type,
 			enum batadv_uev_action action, const char *data)
 {
 	int ret = -ENOMEM;
-	struct batadv_hard_iface *primary_if = NULL;
+	struct batadv_hard_iface *primary_if;
 	struct kobject *bat_kobj;
 	char *uevent_env[4] = { NULL, NULL, NULL, NULL };
 
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index baae715..22457a7 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -238,92 +238,134 @@ static int batadv_tt_local_init(struct batadv_priv *bat_priv)
 	return 0;
 }
 
+static void batadv_tt_global_free(struct batadv_priv *bat_priv,
+				  struct batadv_tt_global_entry *tt_global,
+				  const char *message)
+{
+	batadv_dbg(BATADV_DBG_TT, bat_priv,
+		   "Deleting global tt entry %pM: %s\n",
+		   tt_global->common.addr, message);
+
+	batadv_hash_remove(bat_priv->tt.global_hash, batadv_compare_tt,
+			   batadv_choose_orig, tt_global->common.addr);
+	batadv_tt_global_entry_free_ref(tt_global);
+
+}
+
 void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 			 int ifindex)
 {
 	struct batadv_priv *bat_priv = netdev_priv(soft_iface);
-	struct batadv_tt_local_entry *tt_local_entry = NULL;
-	struct batadv_tt_global_entry *tt_global_entry = NULL;
+	struct batadv_tt_local_entry *tt_local;
+	struct batadv_tt_global_entry *tt_global;
 	struct hlist_head *head;
 	struct hlist_node *node;
 	struct batadv_tt_orig_list_entry *orig_entry;
 	int hash_added;
+	bool roamed_back = false;
 
-	tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr);
+	tt_local = batadv_tt_local_hash_find(bat_priv, addr);
+	tt_global = batadv_tt_global_hash_find(bat_priv, addr);
 
-	if (tt_local_entry) {
-		tt_local_entry->last_seen = jiffies;
-		/* possibly unset the BATADV_TT_CLIENT_PENDING flag */
-		tt_local_entry->common.flags &= ~BATADV_TT_CLIENT_PENDING;
-		goto out;
+	if (tt_local) {
+		tt_local->last_seen = jiffies;
+		if (tt_local->common.flags & BATADV_TT_CLIENT_PENDING) {
+			batadv_dbg(BATADV_DBG_TT, bat_priv,
+				   "Re-adding pending client %pM\n", addr);
+			/* whatever the reason why the PENDING flag was set,
+			 * this is a client which was enqueued to be removed in
+			 * this orig_interval. Since it popped up again, the
+			 * flag can be reset like it was never enqueued
+			 */
+			tt_local->common.flags &= ~BATADV_TT_CLIENT_PENDING;
+			goto add_event;
+		}
+
+		if (tt_local->common.flags & BATADV_TT_CLIENT_ROAM) {
+			batadv_dbg(BATADV_DBG_TT, bat_priv,
+				   "Roaming client %pM came back to its original location\n",
+				   addr);
+			/* the ROAM flag is set because this client roamed away
+			 * and the node got a roaming_advertisement message. Now
+			 * that the client popped up again at its original
+			 * location such flag can be unset
+			 */
+			tt_local->common.flags &= ~BATADV_TT_CLIENT_ROAM;
+			roamed_back = true;
+		}
+		goto check_roaming;
 	}
 
-	tt_local_entry = kmalloc(sizeof(*tt_local_entry), GFP_ATOMIC);
-	if (!tt_local_entry)
+	tt_local = kmalloc(sizeof(*tt_local), GFP_ATOMIC);
+	if (!tt_local)
 		goto out;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Creating new local tt entry: %pM (ttvn: %d)\n", addr,
 		   (uint8_t)atomic_read(&bat_priv->tt.vn));
 
-	memcpy(tt_local_entry->common.addr, addr, ETH_ALEN);
-	tt_local_entry->common.flags = BATADV_NO_FLAGS;
+	memcpy(tt_local->common.addr, addr, ETH_ALEN);
+	tt_local->common.flags = BATADV_NO_FLAGS;
 	if (batadv_is_wifi_iface(ifindex))
-		tt_local_entry->common.flags |= BATADV_TT_CLIENT_WIFI;
-	atomic_set(&tt_local_entry->common.refcount, 2);
-	tt_local_entry->last_seen = jiffies;
-	tt_local_entry->common.added_at = tt_local_entry->last_seen;
+		tt_local->common.flags |= BATADV_TT_CLIENT_WIFI;
+	atomic_set(&tt_local->common.refcount, 2);
+	tt_local->last_seen = jiffies;
+	tt_local->common.added_at = tt_local->last_seen;
 
 	/* the batman interface mac address should never be purged */
 	if (batadv_compare_eth(addr, soft_iface->dev_addr))
-		tt_local_entry->common.flags |= BATADV_TT_CLIENT_NOPURGE;
+		tt_local->common.flags |= BATADV_TT_CLIENT_NOPURGE;
 
 	/* The local entry has to be marked as NEW to avoid to send it in
 	 * a full table response going out before the next ttvn increment
 	 * (consistency check)
 	 */
-	tt_local_entry->common.flags |= BATADV_TT_CLIENT_NEW;
+	tt_local->common.flags |= BATADV_TT_CLIENT_NEW;
 
 	hash_added = batadv_hash_add(bat_priv->tt.local_hash, batadv_compare_tt,
-				     batadv_choose_orig,
-				     &tt_local_entry->common,
-				     &tt_local_entry->common.hash_entry);
+				     batadv_choose_orig, &tt_local->common,
+				     &tt_local->common.hash_entry);
 
 	if (unlikely(hash_added != 0)) {
 		/* remove the reference for the hash */
-		batadv_tt_local_entry_free_ref(tt_local_entry);
+		batadv_tt_local_entry_free_ref(tt_local);
 		goto out;
 	}
 
-	batadv_tt_local_event(bat_priv, addr, tt_local_entry->common.flags);
+add_event:
+	batadv_tt_local_event(bat_priv, addr, tt_local->common.flags);
 
-	/* remove address from global hash if present */
-	tt_global_entry = batadv_tt_global_hash_find(bat_priv, addr);
-
-	/* Check whether it is a roaming! */
-	if (tt_global_entry) {
+check_roaming:
+	/* Check whether it is a roaming, but don't do anything if the roaming
+	 * process has already been handled
+	 */
+	if (tt_global && !(tt_global->common.flags & BATADV_TT_CLIENT_ROAM)) {
 		/* These node are probably going to update their tt table */
-		head = &tt_global_entry->orig_list;
+		head = &tt_global->orig_list;
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(orig_entry, node, head, list) {
-			orig_entry->orig_node->tt_poss_change = true;
-
-			batadv_send_roam_adv(bat_priv,
-					     tt_global_entry->common.addr,
+			batadv_send_roam_adv(bat_priv, tt_global->common.addr,
 					     orig_entry->orig_node);
 		}
 		rcu_read_unlock();
-		/* The global entry has to be marked as ROAMING and
-		 * has to be kept for consistency purpose
-		 */
-		tt_global_entry->common.flags |= BATADV_TT_CLIENT_ROAM;
-		tt_global_entry->roam_at = jiffies;
+		if (roamed_back) {
+			batadv_tt_global_free(bat_priv, tt_global,
+					      "Roaming canceled");
+			tt_global = NULL;
+		} else {
+			/* The global entry has to be marked as ROAMING and
+			 * has to be kept for consistency purpose
+			 */
+			tt_global->common.flags |= BATADV_TT_CLIENT_ROAM;
+			tt_global->roam_at = jiffies;
+		}
 	}
+
 out:
-	if (tt_local_entry)
-		batadv_tt_local_entry_free_ref(tt_local_entry);
-	if (tt_global_entry)
-		batadv_tt_global_entry_free_ref(tt_global_entry);
+	if (tt_local)
+		batadv_tt_local_entry_free_ref(tt_local);
+	if (tt_global)
+		batadv_tt_global_entry_free_ref(tt_global);
 }
 
 static void batadv_tt_realloc_packet_buff(unsigned char **packet_buff,
@@ -434,22 +476,10 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 	struct hlist_node *node;
 	struct hlist_head *head;
 	uint32_t i;
-	int ret = 0;
 
-	primary_if = batadv_primary_if_get_selected(bat_priv);
-	if (!primary_if) {
-		ret = seq_printf(seq,
-				 "BATMAN mesh %s disabled - please specify interfaces to enable it\n",
-				 net_dev->name);
-		goto out;
-	}
-
-	if (primary_if->if_status != BATADV_IF_ACTIVE) {
-		ret = seq_printf(seq,
-				 "BATMAN mesh %s disabled - primary interface not active\n",
-				 net_dev->name);
+	primary_if = batadv_seq_print_text_primary_if_get(seq);
+	if (!primary_if)
 		goto out;
-	}
 
 	seq_printf(seq,
 		   "Locally retrieved addresses (from %s) announced via TT (TTVN: %u):\n",
@@ -479,7 +509,7 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 out:
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
-	return ret;
+	return 0;
 }
 
 static void
@@ -501,24 +531,57 @@ batadv_tt_local_set_pending(struct batadv_priv *bat_priv,
 		   tt_local_entry->common.addr, message);
 }
 
-void batadv_tt_local_remove(struct batadv_priv *bat_priv, const uint8_t *addr,
-			    const char *message, bool roaming)
+/**
+ * batadv_tt_local_remove - logically remove an entry from the local table
+ * @bat_priv: the bat priv with all the soft interface information
+ * @addr: the MAC address of the client to remove
+ * @message: message to append to the log on deletion
+ * @roaming: true if the deletion is due to a roaming event
+ *
+ * Returns the flags assigned to the local entry before being deleted
+ */
+uint16_t batadv_tt_local_remove(struct batadv_priv *bat_priv,
+				const uint8_t *addr, const char *message,
+				bool roaming)
 {
-	struct batadv_tt_local_entry *tt_local_entry = NULL;
-	uint16_t flags;
+	struct batadv_tt_local_entry *tt_local_entry;
+	uint16_t flags, curr_flags = BATADV_NO_FLAGS;
 
 	tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr);
 	if (!tt_local_entry)
 		goto out;
 
+	curr_flags = tt_local_entry->common.flags;
+
 	flags = BATADV_TT_CLIENT_DEL;
-	if (roaming)
+	/* if this global entry addition is due to a roaming, the node has to
+	 * mark the local entry as "roamed" in order to correctly reroute
+	 * packets later
+	 */
+	if (roaming) {
 		flags |= BATADV_TT_CLIENT_ROAM;
+		/* mark the local client as ROAMed */
+		tt_local_entry->common.flags |= BATADV_TT_CLIENT_ROAM;
+	}
+
+	if (!(tt_local_entry->common.flags & BATADV_TT_CLIENT_NEW)) {
+		batadv_tt_local_set_pending(bat_priv, tt_local_entry, flags,
+					    message);
+		goto out;
+	}
+	/* if this client has been added right now, it is possible to
+	 * immediately purge it
+	 */
+	batadv_tt_local_event(bat_priv, tt_local_entry->common.addr,
+			      curr_flags | BATADV_TT_CLIENT_DEL);
+	hlist_del_rcu(&tt_local_entry->common.hash_entry);
+	batadv_tt_local_entry_free_ref(tt_local_entry);
 
-	batadv_tt_local_set_pending(bat_priv, tt_local_entry, flags, message);
 out:
 	if (tt_local_entry)
 		batadv_tt_local_entry_free_ref(tt_local_entry);
+
+	return curr_flags;
 }
 
 static void batadv_tt_local_purge_list(struct batadv_priv *bat_priv,
@@ -721,12 +784,23 @@ int batadv_tt_global_add(struct batadv_priv *bat_priv,
 			 const unsigned char *tt_addr, uint8_t flags,
 			 uint8_t ttvn)
 {
-	struct batadv_tt_global_entry *tt_global_entry = NULL;
+	struct batadv_tt_global_entry *tt_global_entry;
+	struct batadv_tt_local_entry *tt_local_entry;
 	int ret = 0;
 	int hash_added;
 	struct batadv_tt_common_entry *common;
+	uint16_t local_flags;
 
 	tt_global_entry = batadv_tt_global_hash_find(bat_priv, tt_addr);
+	tt_local_entry = batadv_tt_local_hash_find(bat_priv, tt_addr);
+
+	/* if the node already has a local client for this entry, it has to wait
+	 * for a roaming advertisement instead of manually messing up the global
+	 * table
+	 */
+	if ((flags & BATADV_TT_CLIENT_TEMP) && tt_local_entry &&
+	    !(tt_local_entry->common.flags & BATADV_TT_CLIENT_NEW))
+		goto out;
 
 	if (!tt_global_entry) {
 		tt_global_entry = kzalloc(sizeof(*tt_global_entry), GFP_ATOMIC);
@@ -738,6 +812,12 @@ int batadv_tt_global_add(struct batadv_priv *bat_priv,
 
 		common->flags = flags;
 		tt_global_entry->roam_at = 0;
+		/* node must store current time in case of roaming. This is
+		 * needed to purge this entry out on timeout (if nobody claims
+		 * it)
+		 */
+		if (flags & BATADV_TT_CLIENT_ROAM)
+			tt_global_entry->roam_at = jiffies;
 		atomic_set(&common->refcount, 2);
 		common->added_at = jiffies;
 
@@ -755,19 +835,31 @@ int batadv_tt_global_add(struct batadv_priv *bat_priv,
 			goto out_remove;
 		}
 	} else {
+		common = &tt_global_entry->common;
 		/* If there is already a global entry, we can use this one for
 		 * our processing.
-		 * But if we are trying to add a temporary client we can exit
-		 * directly because the temporary information should never
-		 * override any already known client state (whatever it is)
+		 * But if we are trying to add a temporary client then here are
+		 * two options at this point:
+		 * 1) the global client is not a temporary client: the global
+		 *    client has to be left as it is, temporary information
+		 *    should never override any already known client state
+		 * 2) the global client is a temporary client: purge the
+		 *    originator list and add the new one orig_entry
 		 */
-		if (flags & BATADV_TT_CLIENT_TEMP)
-			goto out;
+		if (flags & BATADV_TT_CLIENT_TEMP) {
+			if (!(common->flags & BATADV_TT_CLIENT_TEMP))
+				goto out;
+			if (batadv_tt_global_entry_has_orig(tt_global_entry,
+							    orig_node))
+				goto out_remove;
+			batadv_tt_global_del_orig_list(tt_global_entry);
+			goto add_orig_entry;
+		}
 
 		/* if the client was temporary added before receiving the first
 		 * OGM announcing it, we have to clear the TEMP flag
 		 */
-		tt_global_entry->common.flags &= ~BATADV_TT_CLIENT_TEMP;
+		common->flags &= ~BATADV_TT_CLIENT_TEMP;
 
 		/* the change can carry possible "attribute" flags like the
 		 * TT_CLIENT_WIFI, therefore they have to be copied in the
@@ -782,33 +874,81 @@ int batadv_tt_global_add(struct batadv_priv *bat_priv,
 		 * We should first delete the old originator before adding the
 		 * new one.
 		 */
-		if (tt_global_entry->common.flags & BATADV_TT_CLIENT_ROAM) {
+		if (common->flags & BATADV_TT_CLIENT_ROAM) {
 			batadv_tt_global_del_orig_list(tt_global_entry);
-			tt_global_entry->common.flags &= ~BATADV_TT_CLIENT_ROAM;
+			common->flags &= ~BATADV_TT_CLIENT_ROAM;
 			tt_global_entry->roam_at = 0;
 		}
 	}
+add_orig_entry:
 	/* add the new orig_entry (if needed) or update it */
 	batadv_tt_global_orig_entry_add(tt_global_entry, orig_node, ttvn);
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Creating new global tt entry: %pM (via %pM)\n",
-		   tt_global_entry->common.addr, orig_node->orig);
+		   common->addr, orig_node->orig);
+	ret = 1;
 
 out_remove:
+
 	/* remove address from local hash if present */
-	batadv_tt_local_remove(bat_priv, tt_global_entry->common.addr,
-			       "global tt received",
-			       flags & BATADV_TT_CLIENT_ROAM);
-	ret = 1;
+	local_flags = batadv_tt_local_remove(bat_priv, tt_addr,
+					     "global tt received",
+					     !!(flags & BATADV_TT_CLIENT_ROAM));
+	tt_global_entry->common.flags |= local_flags & BATADV_TT_CLIENT_WIFI;
+
+	if (!(flags & BATADV_TT_CLIENT_ROAM))
+		/* this is a normal global add. Therefore the client is not in a
+		 * roaming state anymore.
+		 */
+		tt_global_entry->common.flags &= ~BATADV_TT_CLIENT_ROAM;
+
 out:
 	if (tt_global_entry)
 		batadv_tt_global_entry_free_ref(tt_global_entry);
+	if (tt_local_entry)
+		batadv_tt_local_entry_free_ref(tt_local_entry);
 	return ret;
 }
 
-/* print all orig nodes who announce the address for this global entry.
- * it is assumed that the caller holds rcu_read_lock();
+/* batadv_transtable_best_orig - Get best originator list entry from tt entry
+ * @tt_global_entry: global translation table entry to be analyzed
+ *
+ * This functon assumes the caller holds rcu_read_lock().
+ * Returns best originator list entry or NULL on errors.
+ */
+static struct batadv_tt_orig_list_entry *
+batadv_transtable_best_orig(struct batadv_tt_global_entry *tt_global_entry)
+{
+	struct batadv_neigh_node *router = NULL;
+	struct hlist_head *head;
+	struct hlist_node *node;
+	struct batadv_tt_orig_list_entry *orig_entry, *best_entry = NULL;
+	int best_tq = 0;
+
+	head = &tt_global_entry->orig_list;
+	hlist_for_each_entry_rcu(orig_entry, node, head, list) {
+		router = batadv_orig_node_get_router(orig_entry->orig_node);
+		if (!router)
+			continue;
+
+		if (router->tq_avg > best_tq) {
+			best_entry = orig_entry;
+			best_tq = router->tq_avg;
+		}
+
+		batadv_neigh_node_free_ref(router);
+	}
+
+	return best_entry;
+}
+
+/* batadv_tt_global_print_entry - print all orig nodes who announce the address
+ * for this global entry
+ * @tt_global_entry: global translation table entry to be printed
+ * @seq: debugfs table seq_file struct
+ *
+ * This functon assumes the caller holds rcu_read_lock().
  */
 static void
 batadv_tt_global_print_entry(struct batadv_tt_global_entry *tt_global_entry,
@@ -816,21 +956,37 @@ batadv_tt_global_print_entry(struct batadv_tt_global_entry *tt_global_entry,
 {
 	struct hlist_head *head;
 	struct hlist_node *node;
-	struct batadv_tt_orig_list_entry *orig_entry;
+	struct batadv_tt_orig_list_entry *orig_entry, *best_entry;
 	struct batadv_tt_common_entry *tt_common_entry;
 	uint16_t flags;
 	uint8_t last_ttvn;
 
 	tt_common_entry = &tt_global_entry->common;
+	flags = tt_common_entry->flags;
+
+	best_entry = batadv_transtable_best_orig(tt_global_entry);
+	if (best_entry) {
+		last_ttvn = atomic_read(&best_entry->orig_node->last_ttvn);
+		seq_printf(seq,	" %c %pM  (%3u) via %pM     (%3u)   [%c%c%c]\n",
+			   '*', tt_global_entry->common.addr,
+			   best_entry->ttvn, best_entry->orig_node->orig,
+			   last_ttvn,
+			   (flags & BATADV_TT_CLIENT_ROAM ? 'R' : '.'),
+			   (flags & BATADV_TT_CLIENT_WIFI ? 'W' : '.'),
+			   (flags & BATADV_TT_CLIENT_TEMP ? 'T' : '.'));
+	}
 
 	head = &tt_global_entry->orig_list;
 
 	hlist_for_each_entry_rcu(orig_entry, node, head, list) {
-		flags = tt_common_entry->flags;
+		if (best_entry == orig_entry)
+			continue;
+
 		last_ttvn = atomic_read(&orig_entry->orig_node->last_ttvn);
-		seq_printf(seq,	" * %pM  (%3u) via %pM     (%3u)   [%c%c%c]\n",
-			   tt_global_entry->common.addr, orig_entry->ttvn,
-			   orig_entry->orig_node->orig, last_ttvn,
+		seq_printf(seq,	" %c %pM  (%3u) via %pM     (%3u)   [%c%c%c]\n",
+			   '+', tt_global_entry->common.addr,
+			   orig_entry->ttvn, orig_entry->orig_node->orig,
+			   last_ttvn,
 			   (flags & BATADV_TT_CLIENT_ROAM ? 'R' : '.'),
 			   (flags & BATADV_TT_CLIENT_WIFI ? 'W' : '.'),
 			   (flags & BATADV_TT_CLIENT_TEMP ? 'T' : '.'));
@@ -848,22 +1004,10 @@ int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset)
 	struct hlist_node *node;
 	struct hlist_head *head;
 	uint32_t i;
-	int ret = 0;
-
-	primary_if = batadv_primary_if_get_selected(bat_priv);
-	if (!primary_if) {
-		ret = seq_printf(seq,
-				 "BATMAN mesh %s disabled - please specify interfaces to enable it\n",
-				 net_dev->name);
-		goto out;
-	}
 
-	if (primary_if->if_status != BATADV_IF_ACTIVE) {
-		ret = seq_printf(seq,
-				 "BATMAN mesh %s disabled - primary interface not active\n",
-				 net_dev->name);
+	primary_if = batadv_seq_print_text_primary_if_get(seq);
+	if (!primary_if)
 		goto out;
-	}
 
 	seq_printf(seq,
 		   "Globally announced TT entries received via the mesh %s\n",
@@ -887,7 +1031,7 @@ int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset)
 out:
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
-	return ret;
+	return 0;
 }
 
 /* deletes the orig list of a tt_global_entry */
@@ -933,21 +1077,6 @@ batadv_tt_global_del_orig_entry(struct batadv_priv *bat_priv,
 	spin_unlock_bh(&tt_global_entry->list_lock);
 }
 
-static void
-batadv_tt_global_del_struct(struct batadv_priv *bat_priv,
-			    struct batadv_tt_global_entry *tt_global_entry,
-			    const char *message)
-{
-	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Deleting global tt entry %pM: %s\n",
-		   tt_global_entry->common.addr, message);
-
-	batadv_hash_remove(bat_priv->tt.global_hash, batadv_compare_tt,
-			   batadv_choose_orig, tt_global_entry->common.addr);
-	batadv_tt_global_entry_free_ref(tt_global_entry);
-
-}
-
 /* If the client is to be deleted, we check if it is the last origantor entry
  * within tt_global entry. If yes, we set the BATADV_TT_CLIENT_ROAM flag and the
  * timer, otherwise we simply remove the originator scheduled for deletion.
@@ -996,7 +1125,7 @@ static void batadv_tt_global_del(struct batadv_priv *bat_priv,
 				 const unsigned char *addr,
 				 const char *message, bool roaming)
 {
-	struct batadv_tt_global_entry *tt_global_entry = NULL;
+	struct batadv_tt_global_entry *tt_global_entry;
 	struct batadv_tt_local_entry *local_entry = NULL;
 
 	tt_global_entry = batadv_tt_global_hash_find(bat_priv, addr);
@@ -1008,8 +1137,8 @@ static void batadv_tt_global_del(struct batadv_priv *bat_priv,
 						orig_node, message);
 
 		if (hlist_empty(&tt_global_entry->orig_list))
-			batadv_tt_global_del_struct(bat_priv, tt_global_entry,
-						    message);
+			batadv_tt_global_free(bat_priv, tt_global_entry,
+					      message);
 
 		goto out;
 	}
@@ -1032,7 +1161,7 @@ static void batadv_tt_global_del(struct batadv_priv *bat_priv,
 	if (local_entry) {
 		/* local entry exists, case 2: client roamed to us. */
 		batadv_tt_global_del_orig_list(tt_global_entry);
-		batadv_tt_global_del_struct(bat_priv, tt_global_entry, message);
+		batadv_tt_global_free(bat_priv, tt_global_entry, message);
 	} else
 		/* no local entry exists, case 1: check for roaming */
 		batadv_tt_global_del_roaming(bat_priv, tt_global_entry,
@@ -1203,15 +1332,12 @@ struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
 	struct batadv_tt_local_entry *tt_local_entry = NULL;
 	struct batadv_tt_global_entry *tt_global_entry = NULL;
 	struct batadv_orig_node *orig_node = NULL;
-	struct batadv_neigh_node *router = NULL;
-	struct hlist_head *head;
-	struct hlist_node *node;
-	struct batadv_tt_orig_list_entry *orig_entry;
-	int best_tq;
+	struct batadv_tt_orig_list_entry *best_entry;
 
 	if (src && atomic_read(&bat_priv->ap_isolation)) {
 		tt_local_entry = batadv_tt_local_hash_find(bat_priv, src);
-		if (!tt_local_entry)
+		if (!tt_local_entry ||
+		    (tt_local_entry->common.flags & BATADV_TT_CLIENT_PENDING))
 			goto out;
 	}
 
@@ -1226,25 +1352,15 @@ struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
 	    _batadv_is_ap_isolated(tt_local_entry, tt_global_entry))
 		goto out;
 
-	best_tq = 0;
-
 	rcu_read_lock();
-	head = &tt_global_entry->orig_list;
-	hlist_for_each_entry_rcu(orig_entry, node, head, list) {
-		router = batadv_orig_node_get_router(orig_entry->orig_node);
-		if (!router)
-			continue;
-
-		if (router->tq_avg > best_tq) {
-			orig_node = orig_entry->orig_node;
-			best_tq = router->tq_avg;
-		}
-		batadv_neigh_node_free_ref(router);
-	}
+	best_entry = batadv_transtable_best_orig(tt_global_entry);
 	/* found anything? */
+	if (best_entry)
+		orig_node = best_entry->orig_node;
 	if (orig_node && !atomic_inc_not_zero(&orig_node->refcount))
 		orig_node = NULL;
 	rcu_read_unlock();
+
 out:
 	if (tt_global_entry)
 		batadv_tt_global_entry_free_ref(tt_global_entry);
@@ -1477,11 +1593,11 @@ batadv_tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
 	tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
 	len = tt_query_size + tt_len;
-	skb = dev_alloc_skb(len + ETH_HLEN);
+	skb = dev_alloc_skb(len + ETH_HLEN + NET_IP_ALIGN);
 	if (!skb)
 		goto out;
 
-	skb_reserve(skb, ETH_HLEN);
+	skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
 	tt_response = (struct batadv_tt_query_packet *)skb_put(skb, len);
 	tt_response->ttvn = ttvn;
 
@@ -1526,7 +1642,6 @@ static int batadv_send_tt_request(struct batadv_priv *bat_priv,
 {
 	struct sk_buff *skb = NULL;
 	struct batadv_tt_query_packet *tt_request;
-	struct batadv_neigh_node *neigh_node = NULL;
 	struct batadv_hard_iface *primary_if;
 	struct batadv_tt_req_node *tt_req_node = NULL;
 	int ret = 1;
@@ -1543,11 +1658,11 @@ static int batadv_send_tt_request(struct batadv_priv *bat_priv,
 	if (!tt_req_node)
 		goto out;
 
-	skb = dev_alloc_skb(sizeof(*tt_request) + ETH_HLEN);
+	skb = dev_alloc_skb(sizeof(*tt_request) + ETH_HLEN + NET_IP_ALIGN);
 	if (!skb)
 		goto out;
 
-	skb_reserve(skb, ETH_HLEN);
+	skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
 
 	tt_req_len = sizeof(*tt_request);
 	tt_request = (struct batadv_tt_query_packet *)skb_put(skb, tt_req_len);
@@ -1564,23 +1679,15 @@ static int batadv_send_tt_request(struct batadv_priv *bat_priv,
 	if (full_table)
 		tt_request->flags |= BATADV_TT_FULL_TABLE;
 
-	neigh_node = batadv_orig_node_get_router(dst_orig_node);
-	if (!neigh_node)
-		goto out;
-
-	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Sending TT_REQUEST to %pM via %pM [%c]\n",
-		   dst_orig_node->orig, neigh_node->addr,
-		   (full_table ? 'F' : '.'));
+	batadv_dbg(BATADV_DBG_TT, bat_priv, "Sending TT_REQUEST to %pM [%c]\n",
+		   dst_orig_node->orig, (full_table ? 'F' : '.'));
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_REQUEST_TX);
 
-	batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
-	ret = 0;
+	if (batadv_send_skb_to_orig(skb, dst_orig_node, NULL))
+		ret = 0;
 
 out:
-	if (neigh_node)
-		batadv_neigh_node_free_ref(neigh_node);
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
 	if (ret)
@@ -1598,9 +1705,8 @@ static bool
 batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 			      struct batadv_tt_query_packet *tt_request)
 {
-	struct batadv_orig_node *req_dst_orig_node = NULL;
+	struct batadv_orig_node *req_dst_orig_node;
 	struct batadv_orig_node *res_dst_orig_node = NULL;
-	struct batadv_neigh_node *neigh_node = NULL;
 	struct batadv_hard_iface *primary_if = NULL;
 	uint8_t orig_ttvn, req_ttvn, ttvn;
 	int ret = false;
@@ -1626,10 +1732,6 @@ batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 	if (!res_dst_orig_node)
 		goto out;
 
-	neigh_node = batadv_orig_node_get_router(res_dst_orig_node);
-	if (!neigh_node)
-		goto out;
-
 	primary_if = batadv_primary_if_get_selected(bat_priv);
 	if (!primary_if)
 		goto out;
@@ -1658,11 +1760,11 @@ batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 		tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
 		len = sizeof(*tt_response) + tt_len;
-		skb = dev_alloc_skb(len + ETH_HLEN);
+		skb = dev_alloc_skb(len + ETH_HLEN + NET_IP_ALIGN);
 		if (!skb)
 			goto unlock;
 
-		skb_reserve(skb, ETH_HLEN);
+		skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
 		packet_pos = skb_put(skb, len);
 		tt_response = (struct batadv_tt_query_packet *)packet_pos;
 		tt_response->ttvn = req_ttvn;
@@ -1701,14 +1803,13 @@ batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 		tt_response->flags |= BATADV_TT_FULL_TABLE;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Sending TT_RESPONSE %pM via %pM for %pM (ttvn: %u)\n",
-		   res_dst_orig_node->orig, neigh_node->addr,
-		   req_dst_orig_node->orig, req_ttvn);
+		   "Sending TT_RESPONSE %pM for %pM (ttvn: %u)\n",
+		   res_dst_orig_node->orig, req_dst_orig_node->orig, req_ttvn);
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_RESPONSE_TX);
 
-	batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
-	ret = true;
+	if (batadv_send_skb_to_orig(skb, res_dst_orig_node, NULL))
+		ret = true;
 	goto out;
 
 unlock:
@@ -1719,8 +1820,6 @@ out:
 		batadv_orig_node_free_ref(res_dst_orig_node);
 	if (req_dst_orig_node)
 		batadv_orig_node_free_ref(req_dst_orig_node);
-	if (neigh_node)
-		batadv_neigh_node_free_ref(neigh_node);
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
 	if (!ret)
@@ -1733,8 +1832,7 @@ static bool
 batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 			   struct batadv_tt_query_packet *tt_request)
 {
-	struct batadv_orig_node *orig_node = NULL;
-	struct batadv_neigh_node *neigh_node = NULL;
+	struct batadv_orig_node *orig_node;
 	struct batadv_hard_iface *primary_if = NULL;
 	uint8_t my_ttvn, req_ttvn, ttvn;
 	int ret = false;
@@ -1759,10 +1857,6 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 	if (!orig_node)
 		goto out;
 
-	neigh_node = batadv_orig_node_get_router(orig_node);
-	if (!neigh_node)
-		goto out;
-
 	primary_if = batadv_primary_if_get_selected(bat_priv);
 	if (!primary_if)
 		goto out;
@@ -1785,11 +1879,11 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 		tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
 		len = sizeof(*tt_response) + tt_len;
-		skb = dev_alloc_skb(len + ETH_HLEN);
+		skb = dev_alloc_skb(len + ETH_HLEN + NET_IP_ALIGN);
 		if (!skb)
 			goto unlock;
 
-		skb_reserve(skb, ETH_HLEN);
+		skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
 		packet_pos = skb_put(skb, len);
 		tt_response = (struct batadv_tt_query_packet *)packet_pos;
 		tt_response->ttvn = req_ttvn;
@@ -1826,14 +1920,14 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 		tt_response->flags |= BATADV_TT_FULL_TABLE;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Sending TT_RESPONSE to %pM via %pM [%c]\n",
-		   orig_node->orig, neigh_node->addr,
+		   "Sending TT_RESPONSE to %pM [%c]\n",
+		   orig_node->orig,
 		   (tt_response->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_RESPONSE_TX);
 
-	batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
-	ret = true;
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL))
+		ret = true;
 	goto out;
 
 unlock:
@@ -1841,8 +1935,6 @@ unlock:
 out:
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
-	if (neigh_node)
-		batadv_neigh_node_free_ref(neigh_node);
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
 	if (!ret)
@@ -1899,7 +1991,7 @@ static void _batadv_tt_update_changes(struct batadv_priv *bat_priv,
 static void batadv_tt_fill_gtable(struct batadv_priv *bat_priv,
 				  struct batadv_tt_query_packet *tt_response)
 {
-	struct batadv_orig_node *orig_node = NULL;
+	struct batadv_orig_node *orig_node;
 
 	orig_node = batadv_orig_hash_find(bat_priv, tt_response->src);
 	if (!orig_node)
@@ -1941,7 +2033,7 @@ static void batadv_tt_update_changes(struct batadv_priv *bat_priv,
 
 bool batadv_is_my_client(struct batadv_priv *bat_priv, const uint8_t *addr)
 {
-	struct batadv_tt_local_entry *tt_local_entry = NULL;
+	struct batadv_tt_local_entry *tt_local_entry;
 	bool ret = false;
 
 	tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr);
@@ -1950,7 +2042,8 @@ bool batadv_is_my_client(struct batadv_priv *bat_priv, const uint8_t *addr)
 	/* Check if the client has been logically deleted (but is kept for
 	 * consistency purpose)
 	 */
-	if (tt_local_entry->common.flags & BATADV_TT_CLIENT_PENDING)
+	if ((tt_local_entry->common.flags & BATADV_TT_CLIENT_PENDING) ||
+	    (tt_local_entry->common.flags & BATADV_TT_CLIENT_ROAM))
 		goto out;
 	ret = true;
 out:
@@ -2001,10 +2094,6 @@ void batadv_handle_tt_response(struct batadv_priv *bat_priv,
 
 	/* Recalculate the CRC for this orig_node and store it */
 	orig_node->tt_crc = batadv_tt_global_crc(bat_priv, orig_node);
-	/* Roaming phase is over: tables are in sync again. I can
-	 * unset the flag
-	 */
-	orig_node->tt_poss_change = false;
 out:
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
@@ -2110,7 +2199,6 @@ unlock:
 static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
 				 struct batadv_orig_node *orig_node)
 {
-	struct batadv_neigh_node *neigh_node = NULL;
 	struct sk_buff *skb = NULL;
 	struct batadv_roam_adv_packet *roam_adv_packet;
 	int ret = 1;
@@ -2123,11 +2211,11 @@ static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
 	if (!batadv_tt_check_roam_count(bat_priv, client))
 		goto out;
 
-	skb = dev_alloc_skb(sizeof(*roam_adv_packet) + ETH_HLEN);
+	skb = dev_alloc_skb(sizeof(*roam_adv_packet) + ETH_HLEN + NET_IP_ALIGN);
 	if (!skb)
 		goto out;
 
-	skb_reserve(skb, ETH_HLEN);
+	skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
 
 	roam_adv_packet = (struct batadv_roam_adv_packet *)skb_put(skb, len);
 
@@ -2143,23 +2231,17 @@ static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
 	memcpy(roam_adv_packet->dst, orig_node->orig, ETH_ALEN);
 	memcpy(roam_adv_packet->client, client, ETH_ALEN);
 
-	neigh_node = batadv_orig_node_get_router(orig_node);
-	if (!neigh_node)
-		goto out;
-
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Sending ROAMING_ADV to %pM (client %pM) via %pM\n",
-		   orig_node->orig, client, neigh_node->addr);
+		   "Sending ROAMING_ADV to %pM (client %pM)\n",
+		   orig_node->orig, client);
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_ROAM_ADV_TX);
 
-	batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
-	ret = 0;
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL))
+		ret = 0;
 
 out:
-	if (neigh_node)
-		batadv_neigh_node_free_ref(neigh_node);
-	if (ret)
+	if (ret && skb)
 		kfree_skb(skb);
 	return;
 }
@@ -2295,7 +2377,6 @@ static int batadv_tt_commit_changes(struct batadv_priv *bat_priv,
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Local changes committed, updating to ttvn %u\n",
 		   (uint8_t)atomic_read(&bat_priv->tt.vn));
-	bat_priv->tt.poss_change = false;
 
 	/* reset the sending counter */
 	atomic_set(&bat_priv->tt.ogm_append_cnt, BATADV_TT_OGM_APPEND_MAX);
@@ -2407,11 +2488,6 @@ void batadv_tt_update_orig(struct batadv_priv *bat_priv,
 		 */
 		if (orig_node->tt_crc != tt_crc)
 			goto request_table;
-
-		/* Roaming phase is over: tables are in sync again. I can
-		 * unset the flag
-		 */
-		orig_node->tt_poss_change = false;
 	} else {
 		/* if we missed more than one change or our tables are not
 		 * in sync anymore -> request fresh tt data
@@ -2444,12 +2520,38 @@ bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
 	if (!tt_global_entry)
 		goto out;
 
-	ret = tt_global_entry->common.flags & BATADV_TT_CLIENT_ROAM;
+	ret = !!(tt_global_entry->common.flags & BATADV_TT_CLIENT_ROAM);
 	batadv_tt_global_entry_free_ref(tt_global_entry);
 out:
 	return ret;
 }
 
+/**
+ * batadv_tt_local_client_is_roaming - tells whether the client is roaming
+ * @bat_priv: the bat priv with all the soft interface information
+ * @addr: the MAC address of the local client to query
+ *
+ * Returns true if the local client is known to be roaming (it is not served by
+ * this node anymore) or not. If yes, the client is still present in the table
+ * to keep the latter consistent with the node TTVN
+ */
+bool batadv_tt_local_client_is_roaming(struct batadv_priv *bat_priv,
+				       uint8_t *addr)
+{
+	struct batadv_tt_local_entry *tt_local_entry;
+	bool ret = false;
+
+	tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr);
+	if (!tt_local_entry)
+		goto out;
+
+	ret = tt_local_entry->common.flags & BATADV_TT_CLIENT_ROAM;
+	batadv_tt_local_entry_free_ref(tt_local_entry);
+out:
+	return ret;
+
+}
+
 bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
 					  struct batadv_orig_node *orig_node,
 					  const unsigned char *addr)
diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h
index 811fffd..46d4451 100644
--- a/net/batman-adv/translation-table.h
+++ b/net/batman-adv/translation-table.h
@@ -24,9 +24,9 @@ int batadv_tt_len(int changes_num);
 int batadv_tt_init(struct batadv_priv *bat_priv);
 void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 			 int ifindex);
-void batadv_tt_local_remove(struct batadv_priv *bat_priv,
-			    const uint8_t *addr, const char *message,
-			    bool roaming);
+uint16_t batadv_tt_local_remove(struct batadv_priv *bat_priv,
+				const uint8_t *addr, const char *message,
+				bool roaming);
 int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset);
 void batadv_tt_global_add_orig(struct batadv_priv *bat_priv,
 			       struct batadv_orig_node *orig_node,
@@ -59,6 +59,8 @@ int batadv_tt_append_diff(struct batadv_priv *bat_priv,
 			  int packet_min_len);
 bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
 					uint8_t *addr);
+bool batadv_tt_local_client_is_roaming(struct batadv_priv *bat_priv,
+				       uint8_t *addr);
 bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
 					  struct batadv_orig_node *orig_node,
 					  const unsigned char *addr);
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index ac1e07a..ae9ac9a 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -28,20 +28,41 @@
 	(ETH_HLEN + max(sizeof(struct batadv_unicast_packet), \
 			sizeof(struct batadv_bcast_packet)))
 
+#ifdef CONFIG_BATMAN_ADV_DAT
+
+/* batadv_dat_addr_t is the type used for all DHT addresses. If it is changed,
+ * BATADV_DAT_ADDR_MAX is changed as well.
+ *
+ * *Please be careful: batadv_dat_addr_t must be UNSIGNED*
+ */
+#define batadv_dat_addr_t uint16_t
+
+#endif /* CONFIG_BATMAN_ADV_DAT */
+
+/**
+ * struct batadv_hard_iface_bat_iv - per hard interface B.A.T.M.A.N. IV data
+ * @ogm_buff: buffer holding the OGM packet
+ * @ogm_buff_len: length of the OGM packet buffer
+ * @ogm_seqno: OGM sequence number - used to identify each OGM
+ */
+struct batadv_hard_iface_bat_iv {
+	unsigned char *ogm_buff;
+	int ogm_buff_len;
+	atomic_t ogm_seqno;
+};
+
 struct batadv_hard_iface {
 	struct list_head list;
 	int16_t if_num;
 	char if_status;
 	struct net_device *net_dev;
-	atomic_t seqno;
 	atomic_t frag_seqno;
-	unsigned char *packet_buff;
-	int packet_len;
 	struct kobject *hardif_obj;
 	atomic_t refcount;
 	struct packet_type batman_adv_ptype;
 	struct net_device *soft_iface;
 	struct rcu_head rcu;
+	struct batadv_hard_iface_bat_iv bat_iv;
 };
 
 /**
@@ -63,6 +84,9 @@ struct batadv_orig_node {
 	uint8_t orig[ETH_ALEN];
 	uint8_t primary_addr[ETH_ALEN];
 	struct batadv_neigh_node __rcu *router; /* rcu protected pointer */
+#ifdef CONFIG_BATMAN_ADV_DAT
+	batadv_dat_addr_t dat_addr;
+#endif
 	unsigned long *bcast_own;
 	uint8_t *bcast_own_sum;
 	unsigned long last_seen;
@@ -77,13 +101,6 @@ struct batadv_orig_node {
 	spinlock_t tt_buff_lock; /* protects tt_buff */
 	atomic_t tt_size;
 	bool tt_initialised;
-	/* The tt_poss_change flag is used to detect an ongoing roaming phase.
-	 * If true, then I sent a Roaming_adv to this orig_node and I have to
-	 * inspect every packet directed to it to check whether it is still
-	 * the true destination or not. This flag will be reset to false as
-	 * soon as I receive a new TTVN from this orig_node
-	 */
-	bool tt_poss_change;
 	uint32_t last_real_seqno;
 	uint8_t last_ttl;
 	DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
@@ -139,7 +156,7 @@ struct batadv_neigh_node {
 #ifdef CONFIG_BATMAN_ADV_BLA
 struct batadv_bcast_duplist_entry {
 	uint8_t orig[ETH_ALEN];
-	uint16_t crc;
+	__be32 crc;
 	unsigned long entrytime;
 };
 #endif
@@ -162,6 +179,13 @@ enum batadv_counters {
 	BATADV_CNT_TT_RESPONSE_RX,
 	BATADV_CNT_TT_ROAM_ADV_TX,
 	BATADV_CNT_TT_ROAM_ADV_RX,
+#ifdef CONFIG_BATMAN_ADV_DAT
+	BATADV_CNT_DAT_GET_TX,
+	BATADV_CNT_DAT_GET_RX,
+	BATADV_CNT_DAT_PUT_TX,
+	BATADV_CNT_DAT_PUT_RX,
+	BATADV_CNT_DAT_CACHED_REPLY_TX,
+#endif
 	BATADV_CNT_NUM,
 };
 
@@ -181,7 +205,6 @@ struct batadv_priv_tt {
 	atomic_t vn;
 	atomic_t ogm_append_cnt;
 	atomic_t local_changes;
-	bool poss_change;
 	struct list_head changes_list;
 	struct batadv_hashtable *local_hash;
 	struct batadv_hashtable *global_hash;
@@ -228,6 +251,20 @@ struct batadv_priv_vis {
 	struct batadv_vis_info *my_info;
 };
 
+/**
+ * struct batadv_priv_dat - per mesh interface DAT private data
+ * @addr: node DAT address
+ * @hash: hashtable representing the local ARP cache
+ * @work: work queue callback item for cache purging
+ */
+#ifdef CONFIG_BATMAN_ADV_DAT
+struct batadv_priv_dat {
+	batadv_dat_addr_t addr;
+	struct batadv_hashtable *hash;
+	struct delayed_work work;
+};
+#endif
+
 struct batadv_priv {
 	atomic_t mesh_state;
 	struct net_device_stats stats;
@@ -237,6 +274,9 @@ struct batadv_priv {
 	atomic_t fragmentation;		/* boolean */
 	atomic_t ap_isolation;		/* boolean */
 	atomic_t bridge_loop_avoidance;	/* boolean */
+#ifdef CONFIG_BATMAN_ADV_DAT
+	atomic_t distributed_arp_table;	/* boolean */
+#endif
 	atomic_t vis_mode;		/* VIS_TYPE_* */
 	atomic_t gw_mode;		/* GW_MODE_* */
 	atomic_t gw_sel_class;		/* uint */
@@ -255,7 +295,7 @@ struct batadv_priv {
 	struct hlist_head forw_bcast_list;
 	struct batadv_hashtable *orig_hash;
 	spinlock_t forw_bat_list_lock; /* protects forw_bat_list */
-	spinlock_t forw_bcast_list_lock; /* protects  */
+	spinlock_t forw_bcast_list_lock; /* protects forw_bcast_list */
 	struct delayed_work orig_work;
 	struct batadv_hard_iface __rcu *primary_if;  /* rcu protected pointer */
 	struct batadv_algo_ops *bat_algo_ops;
@@ -265,6 +305,9 @@ struct batadv_priv {
 	struct batadv_priv_gw gw;
 	struct batadv_priv_tt tt;
 	struct batadv_priv_vis vis;
+#ifdef CONFIG_BATMAN_ADV_DAT
+	struct batadv_priv_dat dat;
+#endif
 };
 
 struct batadv_socket_client {
@@ -318,6 +361,7 @@ struct batadv_backbone_gw {
 	struct hlist_node hash_entry;
 	struct batadv_priv *bat_priv;
 	unsigned long lasttime;	/* last time we heard of this backbone gw */
+	atomic_t wait_periods;
 	atomic_t request_sent;
 	atomic_t refcount;
 	struct rcu_head rcu;
@@ -437,4 +481,36 @@ struct batadv_algo_ops {
 	void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet);
 };
 
+/**
+ * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It
+ * is used to stored ARP entries needed for the global DAT cache
+ * @ip: the IPv4 corresponding to this DAT/ARP entry
+ * @mac_addr: the MAC address associated to the stored IPv4
+ * @last_update: time in jiffies when this entry was refreshed last time
+ * @hash_entry: hlist node for batadv_priv_dat::hash
+ * @refcount: number of contexts the object is used
+ * @rcu: struct used for freeing in an RCU-safe manner
+ */
+struct batadv_dat_entry {
+	__be32 ip;
+	uint8_t mac_addr[ETH_ALEN];
+	unsigned long last_update;
+	struct hlist_node hash_entry;
+	atomic_t refcount;
+	struct rcu_head rcu;
+};
+
+/**
+ * struct batadv_dat_candidate - candidate destination for DAT operations
+ * @type: the type of the selected candidate. It can one of the following:
+ *	  - BATADV_DAT_CANDIDATE_NOT_FOUND
+ *	  - BATADV_DAT_CANDIDATE_ORIG
+ * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to the
+ *	       corresponding originator node structure
+ */
+struct batadv_dat_candidate {
+	int type;
+	struct batadv_orig_node *orig_node;
+};
+
 #endif /* _NET_BATMAN_ADV_TYPES_H_ */
diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c
index f397232..10aff49 100644
--- a/net/batman-adv/unicast.c
+++ b/net/batman-adv/unicast.c
@@ -291,14 +291,118 @@ out:
 	return ret;
 }
 
-int batadv_unicast_send_skb(struct sk_buff *skb, struct batadv_priv *bat_priv)
+/**
+ * batadv_unicast_push_and_fill_skb - extends the buffer and initializes the
+ * common fields for unicast packets
+ * @skb: packet
+ * @hdr_size: amount of bytes to push at the beginning of the skb
+ * @orig_node: the destination node
+ *
+ * Returns false if the buffer extension was not possible or true otherwise
+ */
+static bool batadv_unicast_push_and_fill_skb(struct sk_buff *skb, int hdr_size,
+					     struct batadv_orig_node *orig_node)
+{
+	struct batadv_unicast_packet *unicast_packet;
+	uint8_t ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
+
+	if (batadv_skb_head_push(skb, hdr_size) < 0)
+		return false;
+
+	unicast_packet = (struct batadv_unicast_packet *)skb->data;
+	unicast_packet->header.version = BATADV_COMPAT_VERSION;
+	/* batman packet type: unicast */
+	unicast_packet->header.packet_type = BATADV_UNICAST;
+	/* set unicast ttl */
+	unicast_packet->header.ttl = BATADV_TTL;
+	/* copy the destination for faster routing */
+	memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN);
+	/* set the destination tt version number */
+	unicast_packet->ttvn = ttvn;
+
+	return true;
+}
+
+/**
+ * batadv_unicast_prepare_skb - encapsulate an skb with a unicast header
+ * @skb: the skb containing the payload to encapsulate
+ * @orig_node: the destination node
+ *
+ * Returns false if the payload could not be encapsulated or true otherwise
+ */
+static bool batadv_unicast_prepare_skb(struct sk_buff *skb,
+				       struct batadv_orig_node *orig_node)
+{
+	size_t uni_size = sizeof(struct batadv_unicast_packet);
+	return batadv_unicast_push_and_fill_skb(skb, uni_size, orig_node);
+}
+
+/**
+ * batadv_unicast_4addr_prepare_skb - encapsulate an skb with a unicast4addr
+ * header
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb containing the payload to encapsulate
+ * @orig_node: the destination node
+ * @packet_subtype: the batman 4addr packet subtype to use
+ *
+ * Returns false if the payload could not be encapsulated or true otherwise
+ */
+bool batadv_unicast_4addr_prepare_skb(struct batadv_priv *bat_priv,
+				      struct sk_buff *skb,
+				      struct batadv_orig_node *orig,
+				      int packet_subtype)
+{
+	struct batadv_hard_iface *primary_if;
+	struct batadv_unicast_4addr_packet *unicast_4addr_packet;
+	bool ret = false;
+
+	primary_if = batadv_primary_if_get_selected(bat_priv);
+	if (!primary_if)
+		goto out;
+
+	/* pull the header space and fill the unicast_packet substructure.
+	 * We can do that because the first member of the unicast_4addr_packet
+	 * is of type struct unicast_packet
+	 */
+	if (!batadv_unicast_push_and_fill_skb(skb,
+					      sizeof(*unicast_4addr_packet),
+					      orig))
+		goto out;
+
+	unicast_4addr_packet = (struct batadv_unicast_4addr_packet *)skb->data;
+	unicast_4addr_packet->u.header.packet_type = BATADV_UNICAST_4ADDR;
+	memcpy(unicast_4addr_packet->src, primary_if->net_dev->dev_addr,
+	       ETH_ALEN);
+	unicast_4addr_packet->subtype = packet_subtype;
+	unicast_4addr_packet->reserved = 0;
+
+	ret = true;
+out:
+	if (primary_if)
+		batadv_hardif_free_ref(primary_if);
+	return ret;
+}
+
+/**
+ * batadv_unicast_generic_send_skb - send an skb as unicast
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: payload to send
+ * @packet_type: the batman unicast packet type to use
+ * @packet_subtype: the batman packet subtype. It is ignored if packet_type is
+ *		    not BATADV_UNICAT_4ADDR
+ *
+ * Returns 1 in case of error or 0 otherwise
+ */
+int batadv_unicast_generic_send_skb(struct batadv_priv *bat_priv,
+				    struct sk_buff *skb, int packet_type,
+				    int packet_subtype)
 {
 	struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
 	struct batadv_unicast_packet *unicast_packet;
 	struct batadv_orig_node *orig_node;
 	struct batadv_neigh_node *neigh_node;
 	int data_len = skb->len;
-	int ret = 1;
+	int ret = NET_RX_DROP;
 	unsigned int dev_mtu;
 
 	/* get routing information */
@@ -324,21 +428,23 @@ find_router:
 	if (!neigh_node)
 		goto out;
 
-	if (batadv_skb_head_push(skb, sizeof(*unicast_packet)) < 0)
+	switch (packet_type) {
+	case BATADV_UNICAST:
+		batadv_unicast_prepare_skb(skb, orig_node);
+		break;
+	case BATADV_UNICAST_4ADDR:
+		batadv_unicast_4addr_prepare_skb(bat_priv, skb, orig_node,
+						 packet_subtype);
+		break;
+	default:
+		/* this function supports UNICAST and UNICAST_4ADDR only. It
+		 * should never be invoked with any other packet type
+		 */
 		goto out;
+	}
 
 	unicast_packet = (struct batadv_unicast_packet *)skb->data;
 
-	unicast_packet->header.version = BATADV_COMPAT_VERSION;
-	/* batman packet type: unicast */
-	unicast_packet->header.packet_type = BATADV_UNICAST;
-	/* set unicast ttl */
-	unicast_packet->header.ttl = BATADV_TTL;
-	/* copy the destination for faster routing */
-	memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN);
-	/* set the destination tt version number */
-	unicast_packet->ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
-
 	/* inform the destination node that we are still missing a correct route
 	 * for this client. The destination will receive this packet and will
 	 * try to reroute it because the ttvn contained in the header is less
@@ -348,7 +454,9 @@ find_router:
 		unicast_packet->ttvn = unicast_packet->ttvn - 1;
 
 	dev_mtu = neigh_node->if_incoming->net_dev->mtu;
-	if (atomic_read(&bat_priv->fragmentation) &&
+	/* fragmentation mechanism only works for UNICAST (now) */
+	if (packet_type == BATADV_UNICAST &&
+	    atomic_read(&bat_priv->fragmentation) &&
 	    data_len + sizeof(*unicast_packet) > dev_mtu) {
 		/* send frag skb decreases ttl */
 		unicast_packet->header.ttl++;
@@ -358,16 +466,15 @@ find_router:
 		goto out;
 	}
 
-	batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
-	ret = 0;
-	goto out;
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL))
+		ret = 0;
 
 out:
 	if (neigh_node)
 		batadv_neigh_node_free_ref(neigh_node);
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
-	if (ret == 1)
+	if (ret == NET_RX_DROP)
 		kfree_skb(skb);
 	return ret;
 }
diff --git a/net/batman-adv/unicast.h b/net/batman-adv/unicast.h
index 1c46e2e..61abba5 100644
--- a/net/batman-adv/unicast.h
+++ b/net/batman-adv/unicast.h
@@ -29,10 +29,44 @@ int batadv_frag_reassemble_skb(struct sk_buff *skb,
 			       struct batadv_priv *bat_priv,
 			       struct sk_buff **new_skb);
 void batadv_frag_list_free(struct list_head *head);
-int batadv_unicast_send_skb(struct sk_buff *skb, struct batadv_priv *bat_priv);
 int batadv_frag_send_skb(struct sk_buff *skb, struct batadv_priv *bat_priv,
 			 struct batadv_hard_iface *hard_iface,
 			 const uint8_t dstaddr[]);
+bool batadv_unicast_4addr_prepare_skb(struct batadv_priv *bat_priv,
+				      struct sk_buff *skb,
+				      struct batadv_orig_node *orig_node,
+				      int packet_subtype);
+int batadv_unicast_generic_send_skb(struct batadv_priv *bat_priv,
+				    struct sk_buff *skb, int packet_type,
+				    int packet_subtype);
+
+
+/**
+ * batadv_unicast_send_skb - send the skb encapsulated in a unicast packet
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the payload to send
+ */
+static inline int batadv_unicast_send_skb(struct batadv_priv *bat_priv,
+					  struct sk_buff *skb)
+{
+	return batadv_unicast_generic_send_skb(bat_priv, skb, BATADV_UNICAST,
+					       0);
+}
+
+/**
+ * batadv_unicast_send_skb - send the skb encapsulated in a unicast4addr packet
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the payload to send
+ * @packet_subtype: the batman 4addr packet subtype to use
+ */
+static inline int batadv_unicast_4addr_send_skb(struct batadv_priv *bat_priv,
+						struct sk_buff *skb,
+						int packet_subtype)
+{
+	return batadv_unicast_generic_send_skb(bat_priv, skb,
+					       BATADV_UNICAST_4ADDR,
+					       packet_subtype);
+}
 
 static inline int batadv_frag_can_reassemble(const struct sk_buff *skb, int mtu)
 {
diff --git a/net/batman-adv/vis.c b/net/batman-adv/vis.c
index 5abd145..0f65a9d 100644
--- a/net/batman-adv/vis.c
+++ b/net/batman-adv/vis.c
@@ -396,12 +396,12 @@ batadv_add_packet(struct batadv_priv *bat_priv,
 		return NULL;
 
 	len = sizeof(*packet) + vis_info_len;
-	info->skb_packet = dev_alloc_skb(len + ETH_HLEN);
+	info->skb_packet = dev_alloc_skb(len + ETH_HLEN + NET_IP_ALIGN);
 	if (!info->skb_packet) {
 		kfree(info);
 		return NULL;
 	}
-	skb_reserve(info->skb_packet, ETH_HLEN);
+	skb_reserve(info->skb_packet, ETH_HLEN + NET_IP_ALIGN);
 	packet = (struct batadv_vis_packet *)skb_put(info->skb_packet, len);
 
 	kref_init(&info->refcount);
@@ -698,15 +698,12 @@ static void batadv_purge_vis_packets(struct batadv_priv *bat_priv)
 static void batadv_broadcast_vis_packet(struct batadv_priv *bat_priv,
 					struct batadv_vis_info *info)
 {
-	struct batadv_neigh_node *router;
 	struct batadv_hashtable *hash = bat_priv->orig_hash;
 	struct hlist_node *node;
 	struct hlist_head *head;
 	struct batadv_orig_node *orig_node;
 	struct batadv_vis_packet *packet;
 	struct sk_buff *skb;
-	struct batadv_hard_iface *hard_iface;
-	uint8_t dstaddr[ETH_ALEN];
 	uint32_t i;
 
 
@@ -722,30 +719,20 @@ static void batadv_broadcast_vis_packet(struct batadv_priv *bat_priv,
 			if (!(orig_node->flags & BATADV_VIS_SERVER))
 				continue;
 
-			router = batadv_orig_node_get_router(orig_node);
-			if (!router)
-				continue;
-
 			/* don't send it if we already received the packet from
 			 * this node.
 			 */
 			if (batadv_recv_list_is_in(bat_priv, &info->recv_list,
-						   orig_node->orig)) {
-				batadv_neigh_node_free_ref(router);
+						   orig_node->orig))
 				continue;
-			}
 
 			memcpy(packet->target_orig, orig_node->orig, ETH_ALEN);
-			hard_iface = router->if_incoming;
-			memcpy(dstaddr, router->addr, ETH_ALEN);
-
-			batadv_neigh_node_free_ref(router);
-
 			skb = skb_clone(info->skb_packet, GFP_ATOMIC);
-			if (skb)
-				batadv_send_skb_packet(skb, hard_iface,
-						       dstaddr);
+			if (!skb)
+				continue;
 
+			if (!batadv_send_skb_to_orig(skb, orig_node, NULL))
+				kfree_skb(skb);
 		}
 		rcu_read_unlock();
 	}
@@ -755,7 +742,6 @@ static void batadv_unicast_vis_packet(struct batadv_priv *bat_priv,
 				      struct batadv_vis_info *info)
 {
 	struct batadv_orig_node *orig_node;
-	struct batadv_neigh_node *router = NULL;
 	struct sk_buff *skb;
 	struct batadv_vis_packet *packet;
 
@@ -765,17 +751,14 @@ static void batadv_unicast_vis_packet(struct batadv_priv *bat_priv,
 	if (!orig_node)
 		goto out;
 
-	router = batadv_orig_node_get_router(orig_node);
-	if (!router)
+	skb = skb_clone(info->skb_packet, GFP_ATOMIC);
+	if (!skb)
 		goto out;
 
-	skb = skb_clone(info->skb_packet, GFP_ATOMIC);
-	if (skb)
-		batadv_send_skb_packet(skb, router->if_incoming, router->addr);
+	if (!batadv_send_skb_to_orig(skb, orig_node, NULL))
+		kfree_skb(skb);
 
 out:
-	if (router)
-		batadv_neigh_node_free_ref(router);
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
 }
@@ -873,12 +856,13 @@ int batadv_vis_init(struct batadv_priv *bat_priv)
 	if (!bat_priv->vis.my_info)
 		goto err;
 
-	len = sizeof(*packet) + BATADV_MAX_VIS_PACKET_SIZE + ETH_HLEN;
+	len = sizeof(*packet) + BATADV_MAX_VIS_PACKET_SIZE;
+	len += ETH_HLEN + NET_IP_ALIGN;
 	bat_priv->vis.my_info->skb_packet = dev_alloc_skb(len);
 	if (!bat_priv->vis.my_info->skb_packet)
 		goto free_info;
 
-	skb_reserve(bat_priv->vis.my_info->skb_packet, ETH_HLEN);
+	skb_reserve(bat_priv->vis.my_info->skb_packet, ETH_HLEN + NET_IP_ALIGN);
 	tmp_skb = bat_priv->vis.my_info->skb_packet;
 	packet = (struct batadv_vis_packet *)skb_put(tmp_skb, sizeof(*packet));
 
diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig
index 3537d38..d3f3f7b 100644
--- a/net/bluetooth/Kconfig
+++ b/net/bluetooth/Kconfig
@@ -11,6 +11,7 @@ menuconfig BT
 	select CRYPTO_BLKCIPHER
 	select CRYPTO_AES
 	select CRYPTO_ECB
+	select CRYPTO_SHA256
 	help
 	  Bluetooth is low-cost, low-power, short-range wireless technology.
 	  It was designed as a replacement for cables and other short-range
@@ -47,4 +48,3 @@ source "net/bluetooth/cmtp/Kconfig"
 source "net/bluetooth/hidp/Kconfig"
 
 source "drivers/bluetooth/Kconfig"
-
diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile
index fa6d94a..dea6a28 100644
--- a/net/bluetooth/Makefile
+++ b/net/bluetooth/Makefile
@@ -10,4 +10,4 @@ obj-$(CONFIG_BT_HIDP)	+= hidp/
 
 bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \
 	hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o sco.o lib.o \
-	a2mp.o
+	a2mp.o amp.o
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 0760d1f..2f67d5e 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -16,6 +16,11 @@
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/a2mp.h>
+#include <net/bluetooth/amp.h>
+
+/* Global AMP Manager list */
+LIST_HEAD(amp_mgr_list);
+DEFINE_MUTEX(amp_mgr_list_lock);
 
 /* A2MP build & send command helper functions */
 static struct a2mp_cmd *__a2mp_build(u8 code, u8 ident, u16 len, void *data)
@@ -37,8 +42,7 @@ static struct a2mp_cmd *__a2mp_build(u8 code, u8 ident, u16 len, void *data)
 	return cmd;
 }
 
-static void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len,
-		      void *data)
+void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len, void *data)
 {
 	struct l2cap_chan *chan = mgr->a2mp_chan;
 	struct a2mp_cmd *cmd;
@@ -63,6 +67,14 @@ static void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len,
 	kfree(cmd);
 }
 
+u8 __next_ident(struct amp_mgr *mgr)
+{
+	if (++mgr->ident == 0)
+		mgr->ident = 1;
+
+	return mgr->ident;
+}
+
 static inline void __a2mp_cl_bredr(struct a2mp_cl *cl)
 {
 	cl->id = 0;
@@ -161,6 +173,83 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb,
 	return 0;
 }
 
+static int a2mp_discover_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
+			     struct a2mp_cmd *hdr)
+{
+	struct a2mp_discov_rsp *rsp = (void *) skb->data;
+	u16 len = le16_to_cpu(hdr->len);
+	struct a2mp_cl *cl;
+	u16 ext_feat;
+	bool found = false;
+
+	if (len < sizeof(*rsp))
+		return -EINVAL;
+
+	len -= sizeof(*rsp);
+	skb_pull(skb, sizeof(*rsp));
+
+	ext_feat = le16_to_cpu(rsp->ext_feat);
+
+	BT_DBG("mtu %d efm 0x%4.4x", le16_to_cpu(rsp->mtu), ext_feat);
+
+	/* check that packet is not broken for now */
+	while (ext_feat & A2MP_FEAT_EXT) {
+		if (len < sizeof(ext_feat))
+			return -EINVAL;
+
+		ext_feat = get_unaligned_le16(skb->data);
+		BT_DBG("efm 0x%4.4x", ext_feat);
+		len -= sizeof(ext_feat);
+		skb_pull(skb, sizeof(ext_feat));
+	}
+
+	cl = (void *) skb->data;
+	while (len >= sizeof(*cl)) {
+		BT_DBG("Remote AMP id %d type %d status %d", cl->id, cl->type,
+		       cl->status);
+
+		if (cl->id != HCI_BREDR_ID && cl->type == HCI_AMP) {
+			struct a2mp_info_req req;
+
+			found = true;
+			req.id = cl->id;
+			a2mp_send(mgr, A2MP_GETINFO_REQ, __next_ident(mgr),
+				  sizeof(req), &req);
+		}
+
+		len -= sizeof(*cl);
+		cl = (void *) skb_pull(skb, sizeof(*cl));
+	}
+
+	/* Fall back to L2CAP init sequence */
+	if (!found) {
+		struct l2cap_conn *conn = mgr->l2cap_conn;
+		struct l2cap_chan *chan;
+
+		mutex_lock(&conn->chan_lock);
+
+		list_for_each_entry(chan, &conn->chan_l, list) {
+
+			BT_DBG("chan %p state %s", chan,
+			       state_to_string(chan->state));
+
+			if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP)
+				continue;
+
+			l2cap_chan_lock(chan);
+
+			if (chan->state == BT_CONNECT)
+				l2cap_send_conn_req(chan);
+
+			l2cap_chan_unlock(chan);
+		}
+
+		mutex_unlock(&conn->chan_lock);
+	}
+
+	return 0;
+}
+
 static int a2mp_change_notify(struct amp_mgr *mgr, struct sk_buff *skb,
 			      struct a2mp_cmd *hdr)
 {
@@ -181,7 +270,6 @@ static int a2mp_getinfo_req(struct amp_mgr *mgr, struct sk_buff *skb,
 			    struct a2mp_cmd *hdr)
 {
 	struct a2mp_info_req *req  = (void *) skb->data;
-	struct a2mp_info_rsp rsp;
 	struct hci_dev *hdev;
 
 	if (le16_to_cpu(hdr->len) < sizeof(*req))
@@ -189,53 +277,93 @@ static int a2mp_getinfo_req(struct amp_mgr *mgr, struct sk_buff *skb,
 
 	BT_DBG("id %d", req->id);
 
-	rsp.id = req->id;
-	rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
-
 	hdev = hci_dev_get(req->id);
-	if (hdev && hdev->amp_type != HCI_BREDR) {
-		rsp.status = 0;
-		rsp.total_bw = cpu_to_le32(hdev->amp_total_bw);
-		rsp.max_bw = cpu_to_le32(hdev->amp_max_bw);
-		rsp.min_latency = cpu_to_le32(hdev->amp_min_latency);
-		rsp.pal_cap = cpu_to_le16(hdev->amp_pal_cap);
-		rsp.assoc_size = cpu_to_le16(hdev->amp_assoc_size);
+	if (!hdev || hdev->dev_type != HCI_AMP) {
+		struct a2mp_info_rsp rsp;
+
+		rsp.id = req->id;
+		rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
+
+		a2mp_send(mgr, A2MP_GETINFO_RSP, hdr->ident, sizeof(rsp),
+			  &rsp);
+
+		goto done;
 	}
 
+	mgr->state = READ_LOC_AMP_INFO;
+	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_AMP_INFO, 0, NULL);
+
+done:
 	if (hdev)
 		hci_dev_put(hdev);
 
-	a2mp_send(mgr, A2MP_GETINFO_RSP, hdr->ident, sizeof(rsp), &rsp);
-
 	skb_pull(skb, sizeof(*req));
 	return 0;
 }
 
+static int a2mp_getinfo_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
+			    struct a2mp_cmd *hdr)
+{
+	struct a2mp_info_rsp *rsp = (struct a2mp_info_rsp *) skb->data;
+	struct a2mp_amp_assoc_req req;
+	struct amp_ctrl *ctrl;
+
+	if (le16_to_cpu(hdr->len) < sizeof(*rsp))
+		return -EINVAL;
+
+	BT_DBG("id %d status 0x%2.2x", rsp->id, rsp->status);
+
+	if (rsp->status)
+		return -EINVAL;
+
+	ctrl = amp_ctrl_add(mgr, rsp->id);
+	if (!ctrl)
+		return -ENOMEM;
+
+	req.id = rsp->id;
+	a2mp_send(mgr, A2MP_GETAMPASSOC_REQ, __next_ident(mgr), sizeof(req),
+		  &req);
+
+	skb_pull(skb, sizeof(*rsp));
+	return 0;
+}
+
 static int a2mp_getampassoc_req(struct amp_mgr *mgr, struct sk_buff *skb,
 				struct a2mp_cmd *hdr)
 {
 	struct a2mp_amp_assoc_req *req = (void *) skb->data;
 	struct hci_dev *hdev;
+	struct amp_mgr *tmp;
 
 	if (le16_to_cpu(hdr->len) < sizeof(*req))
 		return -EINVAL;
 
 	BT_DBG("id %d", req->id);
 
+	/* Make sure that other request is not processed */
+	tmp = amp_mgr_lookup_by_state(READ_LOC_AMP_ASSOC);
+
 	hdev = hci_dev_get(req->id);
-	if (!hdev || hdev->amp_type == HCI_BREDR) {
+	if (!hdev || hdev->amp_type == HCI_BREDR || tmp) {
 		struct a2mp_amp_assoc_rsp rsp;
 		rsp.id = req->id;
-		rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
+
+		if (tmp) {
+			rsp.status = A2MP_STATUS_COLLISION_OCCURED;
+			amp_mgr_put(tmp);
+		} else {
+			rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
+		}
 
 		a2mp_send(mgr, A2MP_GETAMPASSOC_RSP, hdr->ident, sizeof(rsp),
 			  &rsp);
-		goto clean;
+
+		goto done;
 	}
 
-	/* Placeholder for HCI Read AMP Assoc */
+	amp_read_loc_assoc(hdev, mgr);
 
-clean:
+done:
 	if (hdev)
 		hci_dev_put(hdev);
 
@@ -243,6 +371,68 @@ clean:
 	return 0;
 }
 
+static int a2mp_getampassoc_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
+				struct a2mp_cmd *hdr)
+{
+	struct a2mp_amp_assoc_rsp *rsp = (void *) skb->data;
+	u16 len = le16_to_cpu(hdr->len);
+	struct hci_dev *hdev;
+	struct amp_ctrl *ctrl;
+	struct hci_conn *hcon;
+	size_t assoc_len;
+
+	if (len < sizeof(*rsp))
+		return -EINVAL;
+
+	assoc_len = len - sizeof(*rsp);
+
+	BT_DBG("id %d status 0x%2.2x assoc len %zu", rsp->id, rsp->status,
+	       assoc_len);
+
+	if (rsp->status)
+		return -EINVAL;
+
+	/* Save remote ASSOC data */
+	ctrl = amp_ctrl_lookup(mgr, rsp->id);
+	if (ctrl) {
+		u8 *assoc;
+
+		assoc = kzalloc(assoc_len, GFP_KERNEL);
+		if (!assoc) {
+			amp_ctrl_put(ctrl);
+			return -ENOMEM;
+		}
+
+		memcpy(assoc, rsp->amp_assoc, assoc_len);
+		ctrl->assoc = assoc;
+		ctrl->assoc_len = assoc_len;
+		ctrl->assoc_rem_len = assoc_len;
+		ctrl->assoc_len_so_far = 0;
+
+		amp_ctrl_put(ctrl);
+	}
+
+	/* Create Phys Link */
+	hdev = hci_dev_get(rsp->id);
+	if (!hdev)
+		return -EINVAL;
+
+	hcon = phylink_add(hdev, mgr, rsp->id, true);
+	if (!hcon)
+		goto done;
+
+	BT_DBG("Created hcon %p: loc:%d -> rem:%d", hcon, hdev->id, rsp->id);
+
+	mgr->bredr_chan->remote_amp_id = rsp->id;
+
+	amp_create_phylink(hdev, mgr, hcon);
+
+done:
+	hci_dev_put(hdev);
+	skb_pull(skb, len);
+	return 0;
+}
+
 static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
 				   struct a2mp_cmd *hdr)
 {
@@ -250,6 +440,8 @@ static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
 
 	struct a2mp_physlink_rsp rsp;
 	struct hci_dev *hdev;
+	struct hci_conn *hcon;
+	struct amp_ctrl *ctrl;
 
 	if (le16_to_cpu(hdr->len) < sizeof(*req))
 		return -EINVAL;
@@ -265,9 +457,43 @@ static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
 		goto send_rsp;
 	}
 
-	/* TODO process physlink create */
+	ctrl = amp_ctrl_lookup(mgr, rsp.remote_id);
+	if (!ctrl) {
+		ctrl = amp_ctrl_add(mgr, rsp.remote_id);
+		if (ctrl) {
+			amp_ctrl_get(ctrl);
+		} else {
+			rsp.status = A2MP_STATUS_UNABLE_START_LINK_CREATION;
+			goto send_rsp;
+		}
+	}
 
-	rsp.status = A2MP_STATUS_SUCCESS;
+	if (ctrl) {
+		size_t assoc_len = le16_to_cpu(hdr->len) - sizeof(*req);
+		u8 *assoc;
+
+		assoc = kzalloc(assoc_len, GFP_KERNEL);
+		if (!assoc) {
+			amp_ctrl_put(ctrl);
+			return -ENOMEM;
+		}
+
+		memcpy(assoc, req->amp_assoc, assoc_len);
+		ctrl->assoc = assoc;
+		ctrl->assoc_len = assoc_len;
+		ctrl->assoc_rem_len = assoc_len;
+		ctrl->assoc_len_so_far = 0;
+
+		amp_ctrl_put(ctrl);
+	}
+
+	hcon = phylink_add(hdev, mgr, req->local_id, false);
+	if (hcon) {
+		amp_accept_phylink(hdev, mgr, hcon);
+		rsp.status = A2MP_STATUS_SUCCESS;
+	} else {
+		rsp.status = A2MP_STATUS_UNABLE_START_LINK_CREATION;
+	}
 
 send_rsp:
 	if (hdev)
@@ -286,6 +512,7 @@ static int a2mp_discphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
 	struct a2mp_physlink_req *req = (void *) skb->data;
 	struct a2mp_physlink_rsp rsp;
 	struct hci_dev *hdev;
+	struct hci_conn *hcon;
 
 	if (le16_to_cpu(hdr->len) < sizeof(*req))
 		return -EINVAL;
@@ -296,14 +523,22 @@ static int a2mp_discphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
 	rsp.remote_id = req->local_id;
 	rsp.status = A2MP_STATUS_SUCCESS;
 
-	hdev = hci_dev_get(req->local_id);
+	hdev = hci_dev_get(req->remote_id);
 	if (!hdev) {
 		rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
 		goto send_rsp;
 	}
 
+	hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, mgr->l2cap_conn->dst);
+	if (!hcon) {
+		BT_ERR("No phys link exist");
+		rsp.status = A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS;
+		goto clean;
+	}
+
 	/* TODO Disconnect Phys Link here */
 
+clean:
 	hci_dev_put(hdev);
 
 send_rsp:
@@ -377,10 +612,19 @@ static int a2mp_chan_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 			err = a2mp_discphyslink_req(mgr, skb, hdr);
 			break;
 
-		case A2MP_CHANGE_RSP:
 		case A2MP_DISCOVER_RSP:
+			err = a2mp_discover_rsp(mgr, skb, hdr);
+			break;
+
 		case A2MP_GETINFO_RSP:
+			err = a2mp_getinfo_rsp(mgr, skb, hdr);
+			break;
+
 		case A2MP_GETAMPASSOC_RSP:
+			err = a2mp_getampassoc_rsp(mgr, skb, hdr);
+			break;
+
+		case A2MP_CHANGE_RSP:
 		case A2MP_CREATEPHYSLINK_RSP:
 		case A2MP_DISCONNPHYSLINK_RSP:
 			err = a2mp_cmd_rsp(mgr, skb, hdr);
@@ -455,9 +699,10 @@ static struct l2cap_ops a2mp_chan_ops = {
 	.new_connection = l2cap_chan_no_new_connection,
 	.teardown = l2cap_chan_no_teardown,
 	.ready = l2cap_chan_no_ready,
+	.defer = l2cap_chan_no_defer,
 };
 
-static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn)
+static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn, bool locked)
 {
 	struct l2cap_chan *chan;
 	int err;
@@ -492,7 +737,10 @@ static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn)
 
 	chan->conf_state = 0;
 
-	l2cap_chan_add(conn, chan);
+	if (locked)
+		__l2cap_chan_add(conn, chan);
+	else
+		l2cap_chan_add(conn, chan);
 
 	chan->remote_mps = chan->omtu;
 	chan->mps = chan->omtu;
@@ -503,11 +751,13 @@ static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn)
 }
 
 /* AMP Manager functions */
-void amp_mgr_get(struct amp_mgr *mgr)
+struct amp_mgr *amp_mgr_get(struct amp_mgr *mgr)
 {
 	BT_DBG("mgr %p orig refcnt %d", mgr, atomic_read(&mgr->kref.refcount));
 
 	kref_get(&mgr->kref);
+
+	return mgr;
 }
 
 static void amp_mgr_destroy(struct kref *kref)
@@ -516,6 +766,11 @@ static void amp_mgr_destroy(struct kref *kref)
 
 	BT_DBG("mgr %p", mgr);
 
+	mutex_lock(&amp_mgr_list_lock);
+	list_del(&mgr->list);
+	mutex_unlock(&amp_mgr_list_lock);
+
+	amp_ctrl_list_flush(mgr);
 	kfree(mgr);
 }
 
@@ -526,7 +781,7 @@ int amp_mgr_put(struct amp_mgr *mgr)
 	return kref_put(&mgr->kref, &amp_mgr_destroy);
 }
 
-static struct amp_mgr *amp_mgr_create(struct l2cap_conn *conn)
+static struct amp_mgr *amp_mgr_create(struct l2cap_conn *conn, bool locked)
 {
 	struct amp_mgr *mgr;
 	struct l2cap_chan *chan;
@@ -539,7 +794,7 @@ static struct amp_mgr *amp_mgr_create(struct l2cap_conn *conn)
 
 	mgr->l2cap_conn = conn;
 
-	chan = a2mp_chan_open(conn);
+	chan = a2mp_chan_open(conn, locked);
 	if (!chan) {
 		kfree(mgr);
 		return NULL;
@@ -552,6 +807,14 @@ static struct amp_mgr *amp_mgr_create(struct l2cap_conn *conn)
 
 	kref_init(&mgr->kref);
 
+	/* Remote AMP ctrl list initialization */
+	INIT_LIST_HEAD(&mgr->amp_ctrls);
+	mutex_init(&mgr->amp_ctrls_lock);
+
+	mutex_lock(&amp_mgr_list_lock);
+	list_add(&mgr->list, &amp_mgr_list);
+	mutex_unlock(&amp_mgr_list_lock);
+
 	return mgr;
 }
 
@@ -560,7 +823,7 @@ struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
 {
 	struct amp_mgr *mgr;
 
-	mgr = amp_mgr_create(conn);
+	mgr = amp_mgr_create(conn, false);
 	if (!mgr) {
 		BT_ERR("Could not create AMP manager");
 		return NULL;
@@ -570,3 +833,139 @@ struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
 
 	return mgr->a2mp_chan;
 }
+
+struct amp_mgr *amp_mgr_lookup_by_state(u8 state)
+{
+	struct amp_mgr *mgr;
+
+	mutex_lock(&amp_mgr_list_lock);
+	list_for_each_entry(mgr, &amp_mgr_list, list) {
+		if (mgr->state == state) {
+			amp_mgr_get(mgr);
+			mutex_unlock(&amp_mgr_list_lock);
+			return mgr;
+		}
+	}
+	mutex_unlock(&amp_mgr_list_lock);
+
+	return NULL;
+}
+
+void a2mp_send_getinfo_rsp(struct hci_dev *hdev)
+{
+	struct amp_mgr *mgr;
+	struct a2mp_info_rsp rsp;
+
+	mgr = amp_mgr_lookup_by_state(READ_LOC_AMP_INFO);
+	if (!mgr)
+		return;
+
+	BT_DBG("%s mgr %p", hdev->name, mgr);
+
+	rsp.id = hdev->id;
+	rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
+
+	if (hdev->amp_type != HCI_BREDR) {
+		rsp.status = 0;
+		rsp.total_bw = cpu_to_le32(hdev->amp_total_bw);
+		rsp.max_bw = cpu_to_le32(hdev->amp_max_bw);
+		rsp.min_latency = cpu_to_le32(hdev->amp_min_latency);
+		rsp.pal_cap = cpu_to_le16(hdev->amp_pal_cap);
+		rsp.assoc_size = cpu_to_le16(hdev->amp_assoc_size);
+	}
+
+	a2mp_send(mgr, A2MP_GETINFO_RSP, mgr->ident, sizeof(rsp), &rsp);
+	amp_mgr_put(mgr);
+}
+
+void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status)
+{
+	struct amp_mgr *mgr;
+	struct amp_assoc *loc_assoc = &hdev->loc_assoc;
+	struct a2mp_amp_assoc_rsp *rsp;
+	size_t len;
+
+	mgr = amp_mgr_lookup_by_state(READ_LOC_AMP_ASSOC);
+	if (!mgr)
+		return;
+
+	BT_DBG("%s mgr %p", hdev->name, mgr);
+
+	len = sizeof(struct a2mp_amp_assoc_rsp) + loc_assoc->len;
+	rsp = kzalloc(len, GFP_KERNEL);
+	if (!rsp) {
+		amp_mgr_put(mgr);
+		return;
+	}
+
+	rsp->id = hdev->id;
+
+	if (status) {
+		rsp->status = A2MP_STATUS_INVALID_CTRL_ID;
+	} else {
+		rsp->status = A2MP_STATUS_SUCCESS;
+		memcpy(rsp->amp_assoc, loc_assoc->data, loc_assoc->len);
+	}
+
+	a2mp_send(mgr, A2MP_GETAMPASSOC_RSP, mgr->ident, len, rsp);
+	amp_mgr_put(mgr);
+	kfree(rsp);
+}
+
+void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status)
+{
+	struct amp_mgr *mgr;
+	struct amp_assoc *loc_assoc = &hdev->loc_assoc;
+	struct a2mp_physlink_req *req;
+	struct l2cap_chan *bredr_chan;
+	size_t len;
+
+	mgr = amp_mgr_lookup_by_state(READ_LOC_AMP_ASSOC_FINAL);
+	if (!mgr)
+		return;
+
+	len = sizeof(*req) + loc_assoc->len;
+
+	BT_DBG("%s mgr %p assoc_len %zu", hdev->name, mgr, len);
+
+	req = kzalloc(len, GFP_KERNEL);
+	if (!req) {
+		amp_mgr_put(mgr);
+		return;
+	}
+
+	bredr_chan = mgr->bredr_chan;
+	if (!bredr_chan)
+		goto clean;
+
+	req->local_id = hdev->id;
+	req->remote_id = bredr_chan->remote_amp_id;
+	memcpy(req->amp_assoc, loc_assoc->data, loc_assoc->len);
+
+	a2mp_send(mgr, A2MP_CREATEPHYSLINK_REQ, __next_ident(mgr), len, req);
+
+clean:
+	amp_mgr_put(mgr);
+	kfree(req);
+}
+
+void a2mp_discover_amp(struct l2cap_chan *chan)
+{
+	struct l2cap_conn *conn = chan->conn;
+	struct amp_mgr *mgr = conn->hcon->amp_mgr;
+	struct a2mp_discov_req req;
+
+	BT_DBG("chan %p conn %p mgr %p", chan, conn, mgr);
+
+	if (!mgr) {
+		mgr = amp_mgr_create(conn, true);
+		if (!mgr)
+			return;
+	}
+
+	mgr->bredr_chan = chan;
+
+	req.mtu = cpu_to_le16(L2CAP_A2MP_DEFAULT_MTU);
+	req.ext_feat = 0;
+	a2mp_send(mgr, A2MP_DISCOVER_REQ, 1, sizeof(req), &req);
+}
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index ba033f0..5355df6 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -569,7 +569,6 @@ static int bt_seq_show(struct seq_file *seq, void *v)
 {
 	struct bt_seq_state *s = seq->private;
 	struct bt_sock_list *l = s->l;
-	bdaddr_t src_baswapped, dst_baswapped;
 
 	if (v == SEQ_START_TOKEN) {
 		seq_puts(seq ,"sk               RefCnt Rmem   Wmem   User   Inode  Src Dst Parent");
@@ -583,18 +582,17 @@ static int bt_seq_show(struct seq_file *seq, void *v)
 	} else {
 		struct sock *sk = sk_entry(v);
 		struct bt_sock *bt = bt_sk(sk);
-		baswap(&src_baswapped, &bt->src);
-		baswap(&dst_baswapped, &bt->dst);
 
-		seq_printf(seq, "%pK %-6d %-6u %-6u %-6u %-6lu %pM %pM %-6lu",
+		seq_printf(seq,
+			   "%pK %-6d %-6u %-6u %-6u %-6lu %pMR %pMR %-6lu",
 			   sk,
 			   atomic_read(&sk->sk_refcnt),
 			   sk_rmem_alloc_get(sk),
 			   sk_wmem_alloc_get(sk),
 			   from_kuid(seq_user_ns(seq), sock_i_uid(sk)),
 			   sock_i_ino(sk),
-			   &src_baswapped,
-			   &dst_baswapped,
+			   &bt->src,
+			   &bt->dst,
 			   bt->parent? sock_i_ino(bt->parent): 0LU);
 
 		if (l->custom_seq_show) {
diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c
new file mode 100644
index 0000000..1b0d92c
--- /dev/null
+++ b/net/bluetooth/amp.c
@@ -0,0 +1,471 @@
+/*
+   Copyright (c) 2011,2012 Intel Corp.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 and
+   only version 2 as published by the Free Software Foundation.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+*/
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/a2mp.h>
+#include <net/bluetooth/amp.h>
+#include <crypto/hash.h>
+
+/* Remote AMP Controllers interface */
+void amp_ctrl_get(struct amp_ctrl *ctrl)
+{
+	BT_DBG("ctrl %p orig refcnt %d", ctrl,
+	       atomic_read(&ctrl->kref.refcount));
+
+	kref_get(&ctrl->kref);
+}
+
+static void amp_ctrl_destroy(struct kref *kref)
+{
+	struct amp_ctrl *ctrl = container_of(kref, struct amp_ctrl, kref);
+
+	BT_DBG("ctrl %p", ctrl);
+
+	kfree(ctrl->assoc);
+	kfree(ctrl);
+}
+
+int amp_ctrl_put(struct amp_ctrl *ctrl)
+{
+	BT_DBG("ctrl %p orig refcnt %d", ctrl,
+	       atomic_read(&ctrl->kref.refcount));
+
+	return kref_put(&ctrl->kref, &amp_ctrl_destroy);
+}
+
+struct amp_ctrl *amp_ctrl_add(struct amp_mgr *mgr, u8 id)
+{
+	struct amp_ctrl *ctrl;
+
+	ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
+	if (!ctrl)
+		return NULL;
+
+	kref_init(&ctrl->kref);
+	ctrl->id = id;
+
+	mutex_lock(&mgr->amp_ctrls_lock);
+	list_add(&ctrl->list, &mgr->amp_ctrls);
+	mutex_unlock(&mgr->amp_ctrls_lock);
+
+	BT_DBG("mgr %p ctrl %p", mgr, ctrl);
+
+	return ctrl;
+}
+
+void amp_ctrl_list_flush(struct amp_mgr *mgr)
+{
+	struct amp_ctrl *ctrl, *n;
+
+	BT_DBG("mgr %p", mgr);
+
+	mutex_lock(&mgr->amp_ctrls_lock);
+	list_for_each_entry_safe(ctrl, n, &mgr->amp_ctrls, list) {
+		list_del(&ctrl->list);
+		amp_ctrl_put(ctrl);
+	}
+	mutex_unlock(&mgr->amp_ctrls_lock);
+}
+
+struct amp_ctrl *amp_ctrl_lookup(struct amp_mgr *mgr, u8 id)
+{
+	struct amp_ctrl *ctrl;
+
+	BT_DBG("mgr %p id %d", mgr, id);
+
+	mutex_lock(&mgr->amp_ctrls_lock);
+	list_for_each_entry(ctrl, &mgr->amp_ctrls, list) {
+		if (ctrl->id == id) {
+			amp_ctrl_get(ctrl);
+			mutex_unlock(&mgr->amp_ctrls_lock);
+			return ctrl;
+		}
+	}
+	mutex_unlock(&mgr->amp_ctrls_lock);
+
+	return NULL;
+}
+
+/* Physical Link interface */
+static u8 __next_handle(struct amp_mgr *mgr)
+{
+	if (++mgr->handle == 0)
+		mgr->handle = 1;
+
+	return mgr->handle;
+}
+
+struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr,
+			     u8 remote_id, bool out)
+{
+	bdaddr_t *dst = mgr->l2cap_conn->dst;
+	struct hci_conn *hcon;
+
+	hcon = hci_conn_add(hdev, AMP_LINK, dst);
+	if (!hcon)
+		return NULL;
+
+	BT_DBG("hcon %p dst %pMR", hcon, dst);
+
+	hcon->state = BT_CONNECT;
+	hcon->attempt++;
+	hcon->handle = __next_handle(mgr);
+	hcon->remote_id = remote_id;
+	hcon->amp_mgr = amp_mgr_get(mgr);
+	hcon->out = out;
+
+	return hcon;
+}
+
+/* AMP crypto key generation interface */
+static int hmac_sha256(u8 *key, u8 ksize, char *plaintext, u8 psize, u8 *output)
+{
+	int ret = 0;
+	struct crypto_shash *tfm;
+
+	if (!ksize)
+		return -EINVAL;
+
+	tfm = crypto_alloc_shash("hmac(sha256)", 0, 0);
+	if (IS_ERR(tfm)) {
+		BT_DBG("crypto_alloc_ahash failed: err %ld", PTR_ERR(tfm));
+		return PTR_ERR(tfm);
+	}
+
+	ret = crypto_shash_setkey(tfm, key, ksize);
+	if (ret) {
+		BT_DBG("crypto_ahash_setkey failed: err %d", ret);
+	} else {
+		struct {
+			struct shash_desc shash;
+			char ctx[crypto_shash_descsize(tfm)];
+		} desc;
+
+		desc.shash.tfm = tfm;
+		desc.shash.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+
+		ret = crypto_shash_digest(&desc.shash, plaintext, psize,
+					  output);
+	}
+
+	crypto_free_shash(tfm);
+	return ret;
+}
+
+int phylink_gen_key(struct hci_conn *conn, u8 *data, u8 *len, u8 *type)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct link_key *key;
+	u8 keybuf[HCI_AMP_LINK_KEY_SIZE];
+	u8 gamp_key[HCI_AMP_LINK_KEY_SIZE];
+	int err;
+
+	if (!hci_conn_check_link_mode(conn))
+		return -EACCES;
+
+	BT_DBG("conn %p key_type %d", conn, conn->key_type);
+
+	/* Legacy key */
+	if (conn->key_type < 3) {
+		BT_ERR("Legacy key type %d", conn->key_type);
+		return -EACCES;
+	}
+
+	*type = conn->key_type;
+	*len = HCI_AMP_LINK_KEY_SIZE;
+
+	key = hci_find_link_key(hdev, &conn->dst);
+	if (!key) {
+		BT_DBG("No Link key for conn %p dst %pMR", conn, &conn->dst);
+		return -EACCES;
+	}
+
+	/* BR/EDR Link Key concatenated together with itself */
+	memcpy(&keybuf[0], key->val, HCI_LINK_KEY_SIZE);
+	memcpy(&keybuf[HCI_LINK_KEY_SIZE], key->val, HCI_LINK_KEY_SIZE);
+
+	/* Derive Generic AMP Link Key (gamp) */
+	err = hmac_sha256(keybuf, HCI_AMP_LINK_KEY_SIZE, "gamp", 4, gamp_key);
+	if (err) {
+		BT_ERR("Could not derive Generic AMP Key: err %d", err);
+		return err;
+	}
+
+	if (conn->key_type == HCI_LK_DEBUG_COMBINATION) {
+		BT_DBG("Use Generic AMP Key (gamp)");
+		memcpy(data, gamp_key, HCI_AMP_LINK_KEY_SIZE);
+		return err;
+	}
+
+	/* Derive Dedicated AMP Link Key: "802b" is 802.11 PAL keyID */
+	return hmac_sha256(gamp_key, HCI_AMP_LINK_KEY_SIZE, "802b", 4, data);
+}
+
+void amp_read_loc_assoc_frag(struct hci_dev *hdev, u8 phy_handle)
+{
+	struct hci_cp_read_local_amp_assoc cp;
+	struct amp_assoc *loc_assoc = &hdev->loc_assoc;
+
+	BT_DBG("%s handle %d", hdev->name, phy_handle);
+
+	cp.phy_handle = phy_handle;
+	cp.max_len = cpu_to_le16(hdev->amp_assoc_size);
+	cp.len_so_far = cpu_to_le16(loc_assoc->offset);
+
+	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_AMP_ASSOC, sizeof(cp), &cp);
+}
+
+void amp_read_loc_assoc(struct hci_dev *hdev, struct amp_mgr *mgr)
+{
+	struct hci_cp_read_local_amp_assoc cp;
+
+	memset(&hdev->loc_assoc, 0, sizeof(struct amp_assoc));
+	memset(&cp, 0, sizeof(cp));
+
+	cp.max_len = cpu_to_le16(hdev->amp_assoc_size);
+
+	mgr->state = READ_LOC_AMP_ASSOC;
+	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_AMP_ASSOC, sizeof(cp), &cp);
+}
+
+void amp_read_loc_assoc_final_data(struct hci_dev *hdev,
+				   struct hci_conn *hcon)
+{
+	struct hci_cp_read_local_amp_assoc cp;
+	struct amp_mgr *mgr = hcon->amp_mgr;
+
+	cp.phy_handle = hcon->handle;
+	cp.len_so_far = cpu_to_le16(0);
+	cp.max_len = cpu_to_le16(hdev->amp_assoc_size);
+
+	mgr->state = READ_LOC_AMP_ASSOC_FINAL;
+
+	/* Read Local AMP Assoc final link information data */
+	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_AMP_ASSOC, sizeof(cp), &cp);
+}
+
+/* Write AMP Assoc data fragments, returns true with last fragment written*/
+static bool amp_write_rem_assoc_frag(struct hci_dev *hdev,
+				     struct hci_conn *hcon)
+{
+	struct hci_cp_write_remote_amp_assoc *cp;
+	struct amp_mgr *mgr = hcon->amp_mgr;
+	struct amp_ctrl *ctrl;
+	u16 frag_len, len;
+
+	ctrl = amp_ctrl_lookup(mgr, hcon->remote_id);
+	if (!ctrl)
+		return false;
+
+	if (!ctrl->assoc_rem_len) {
+		BT_DBG("all fragments are written");
+		ctrl->assoc_rem_len = ctrl->assoc_len;
+		ctrl->assoc_len_so_far = 0;
+
+		amp_ctrl_put(ctrl);
+		return true;
+	}
+
+	frag_len = min_t(u16, 248, ctrl->assoc_rem_len);
+	len = frag_len + sizeof(*cp);
+
+	cp = kzalloc(len, GFP_KERNEL);
+	if (!cp) {
+		amp_ctrl_put(ctrl);
+		return false;
+	}
+
+	BT_DBG("hcon %p ctrl %p frag_len %u assoc_len %u rem_len %u",
+	       hcon, ctrl, frag_len, ctrl->assoc_len, ctrl->assoc_rem_len);
+
+	cp->phy_handle = hcon->handle;
+	cp->len_so_far = cpu_to_le16(ctrl->assoc_len_so_far);
+	cp->rem_len = cpu_to_le16(ctrl->assoc_rem_len);
+	memcpy(cp->frag, ctrl->assoc, frag_len);
+
+	ctrl->assoc_len_so_far += frag_len;
+	ctrl->assoc_rem_len -= frag_len;
+
+	amp_ctrl_put(ctrl);
+
+	hci_send_cmd(hdev, HCI_OP_WRITE_REMOTE_AMP_ASSOC, len, cp);
+
+	kfree(cp);
+
+	return false;
+}
+
+void amp_write_rem_assoc_continue(struct hci_dev *hdev, u8 handle)
+{
+	struct hci_conn *hcon;
+
+	BT_DBG("%s phy handle 0x%2.2x", hdev->name, handle);
+
+	hcon = hci_conn_hash_lookup_handle(hdev, handle);
+	if (!hcon)
+		return;
+
+	amp_write_rem_assoc_frag(hdev, hcon);
+}
+
+void amp_write_remote_assoc(struct hci_dev *hdev, u8 handle)
+{
+	struct hci_conn *hcon;
+
+	BT_DBG("%s phy handle 0x%2.2x", hdev->name, handle);
+
+	hcon = hci_conn_hash_lookup_handle(hdev, handle);
+	if (!hcon)
+		return;
+
+	BT_DBG("%s phy handle 0x%2.2x hcon %p", hdev->name, handle, hcon);
+
+	amp_write_rem_assoc_frag(hdev, hcon);
+}
+
+void amp_create_phylink(struct hci_dev *hdev, struct amp_mgr *mgr,
+			struct hci_conn *hcon)
+{
+	struct hci_cp_create_phy_link cp;
+
+	cp.phy_handle = hcon->handle;
+
+	BT_DBG("%s hcon %p phy handle 0x%2.2x", hdev->name, hcon,
+	       hcon->handle);
+
+	if (phylink_gen_key(mgr->l2cap_conn->hcon, cp.key, &cp.key_len,
+			    &cp.key_type)) {
+		BT_DBG("Cannot create link key");
+		return;
+	}
+
+	hci_send_cmd(hdev, HCI_OP_CREATE_PHY_LINK, sizeof(cp), &cp);
+}
+
+void amp_accept_phylink(struct hci_dev *hdev, struct amp_mgr *mgr,
+			struct hci_conn *hcon)
+{
+	struct hci_cp_accept_phy_link cp;
+
+	cp.phy_handle = hcon->handle;
+
+	BT_DBG("%s hcon %p phy handle 0x%2.2x", hdev->name, hcon,
+	       hcon->handle);
+
+	if (phylink_gen_key(mgr->l2cap_conn->hcon, cp.key, &cp.key_len,
+			    &cp.key_type)) {
+		BT_DBG("Cannot create link key");
+		return;
+	}
+
+	hci_send_cmd(hdev, HCI_OP_ACCEPT_PHY_LINK, sizeof(cp), &cp);
+}
+
+void amp_physical_cfm(struct hci_conn *bredr_hcon, struct hci_conn *hs_hcon)
+{
+	struct hci_dev *bredr_hdev = hci_dev_hold(bredr_hcon->hdev);
+	struct amp_mgr *mgr = hs_hcon->amp_mgr;
+	struct l2cap_chan *bredr_chan;
+
+	BT_DBG("bredr_hcon %p hs_hcon %p mgr %p", bredr_hcon, hs_hcon, mgr);
+
+	if (!bredr_hdev || !mgr || !mgr->bredr_chan)
+		return;
+
+	bredr_chan = mgr->bredr_chan;
+
+	l2cap_chan_lock(bredr_chan);
+
+	set_bit(FLAG_EFS_ENABLE, &bredr_chan->flags);
+	bredr_chan->remote_amp_id = hs_hcon->remote_id;
+	bredr_chan->local_amp_id = hs_hcon->hdev->id;
+	bredr_chan->hs_hcon = hs_hcon;
+	bredr_chan->conn->mtu = hs_hcon->hdev->block_mtu;
+
+	__l2cap_physical_cfm(bredr_chan, 0);
+
+	l2cap_chan_unlock(bredr_chan);
+
+	hci_dev_put(bredr_hdev);
+}
+
+void amp_create_logical_link(struct l2cap_chan *chan)
+{
+	struct hci_cp_create_accept_logical_link cp;
+	struct hci_conn *hcon;
+	struct hci_dev *hdev;
+
+	BT_DBG("chan %p", chan);
+
+	if (!chan->hs_hcon)
+		return;
+
+	hdev = hci_dev_hold(chan->hs_hcon->hdev);
+	if (!hdev)
+		return;
+
+	BT_DBG("chan %p dst %pMR", chan, chan->conn->dst);
+
+	hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, chan->conn->dst);
+	if (!hcon)
+		goto done;
+
+	cp.phy_handle = hcon->handle;
+
+	cp.tx_flow_spec.id = chan->local_id;
+	cp.tx_flow_spec.stype = chan->local_stype;
+	cp.tx_flow_spec.msdu = cpu_to_le16(chan->local_msdu);
+	cp.tx_flow_spec.sdu_itime = cpu_to_le32(chan->local_sdu_itime);
+	cp.tx_flow_spec.acc_lat = cpu_to_le32(chan->local_acc_lat);
+	cp.tx_flow_spec.flush_to = cpu_to_le32(chan->local_flush_to);
+
+	cp.rx_flow_spec.id = chan->remote_id;
+	cp.rx_flow_spec.stype = chan->remote_stype;
+	cp.rx_flow_spec.msdu = cpu_to_le16(chan->remote_msdu);
+	cp.rx_flow_spec.sdu_itime = cpu_to_le32(chan->remote_sdu_itime);
+	cp.rx_flow_spec.acc_lat = cpu_to_le32(chan->remote_acc_lat);
+	cp.rx_flow_spec.flush_to = cpu_to_le32(chan->remote_flush_to);
+
+	if (hcon->out)
+		hci_send_cmd(hdev, HCI_OP_CREATE_LOGICAL_LINK, sizeof(cp),
+			     &cp);
+	else
+		hci_send_cmd(hdev, HCI_OP_ACCEPT_LOGICAL_LINK, sizeof(cp),
+			     &cp);
+
+done:
+	hci_dev_put(hdev);
+}
+
+void amp_disconnect_logical_link(struct hci_chan *hchan)
+{
+	struct hci_conn *hcon = hchan->conn;
+	struct hci_cp_disconn_logical_link cp;
+
+	if (hcon->state != BT_CONNECTED) {
+		BT_DBG("hchan %p not connected", hchan);
+		return;
+	}
+
+	cp.log_handle = cpu_to_le16(hchan->handle);
+	hci_send_cmd(hcon->hdev, HCI_OP_DISCONN_LOGICAL_LINK, sizeof(cp), &cp);
+}
+
+void amp_destroy_logical_link(struct hci_chan *hchan, u8 reason)
+{
+	BT_DBG("hchan %p", hchan);
+
+	hci_chan_del(hchan);
+}
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index 4a6620b..a5b6397 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -182,8 +182,7 @@ static int bnep_ctrl_set_mcfilter(struct bnep_session *s, u8 *data, int len)
 			a2 = data;
 			data += ETH_ALEN;
 
-			BT_DBG("mc filter %s -> %s",
-				batostr((void *) a1), batostr((void *) a2));
+			BT_DBG("mc filter %pMR -> %pMR", a1, a2);
 
 			/* Iterate from a1 to a2 */
 			set_bit(bnep_mc_hash(a1), (ulong *) &s->mc_filter);
diff --git a/net/bluetooth/bnep/netdev.c b/net/bluetooth/bnep/netdev.c
index 98f86f9..e58c8b3 100644
--- a/net/bluetooth/bnep/netdev.c
+++ b/net/bluetooth/bnep/netdev.c
@@ -25,7 +25,6 @@
    SOFTWARE IS DISCLAIMED.
 */
 
-#include <linux/export.h>
 #include <linux/etherdevice.h>
 
 #include <net/bluetooth/bluetooth.h>
diff --git a/net/bluetooth/cmtp/capi.c b/net/bluetooth/cmtp/capi.c
index 50f0d13..a4a9d4b 100644
--- a/net/bluetooth/cmtp/capi.c
+++ b/net/bluetooth/cmtp/capi.c
@@ -20,7 +20,7 @@
    SOFTWARE IS DISCLAIMED.
 */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/types.h>
diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index 6c9c1fd..e0a6ebf 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -353,7 +353,7 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock)
 
 	BT_DBG("mtu %d", session->mtu);
 
-	sprintf(session->name, "%s", batostr(&bt_sk(sock->sk)->dst));
+	sprintf(session->name, "%pMR", &bt_sk(sock->sk)->dst);
 
 	session->sock  = sock;
 	session->state = BT_CONFIG;
diff --git a/net/bluetooth/cmtp/sock.c b/net/bluetooth/cmtp/sock.c
index aacb802..1c57482 100644
--- a/net/bluetooth/cmtp/sock.c
+++ b/net/bluetooth/cmtp/sock.c
@@ -20,7 +20,7 @@
    SOFTWARE IS DISCLAIMED.
 */
 
-#include <linux/module.h>
+#include <linux/export.h>
 
 #include <linux/types.h>
 #include <linux/capability.h>
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index b9196a4..25bfce0 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -130,6 +130,20 @@ void hci_acl_disconn(struct hci_conn *conn, __u8 reason)
 	hci_send_cmd(conn->hdev, HCI_OP_DISCONNECT, sizeof(cp), &cp);
 }
 
+static void hci_amp_disconn(struct hci_conn *conn, __u8 reason)
+{
+	struct hci_cp_disconn_phy_link cp;
+
+	BT_DBG("hcon %p", conn);
+
+	conn->state = BT_DISCONN;
+
+	cp.phy_handle = HCI_PHY_HANDLE(conn->handle);
+	cp.reason = reason;
+	hci_send_cmd(conn->hdev, HCI_OP_DISCONN_PHY_LINK,
+		     sizeof(cp), &cp);
+}
+
 static void hci_add_sco(struct hci_conn *conn, __u16 handle)
 {
 	struct hci_dev *hdev = conn->hdev;
@@ -230,11 +244,24 @@ void hci_sco_setup(struct hci_conn *conn, __u8 status)
 	}
 }
 
+static void hci_conn_disconnect(struct hci_conn *conn)
+{
+	__u8 reason = hci_proto_disconn_ind(conn);
+
+	switch (conn->type) {
+	case ACL_LINK:
+		hci_acl_disconn(conn, reason);
+		break;
+	case AMP_LINK:
+		hci_amp_disconn(conn, reason);
+		break;
+	}
+}
+
 static void hci_conn_timeout(struct work_struct *work)
 {
 	struct hci_conn *conn = container_of(work, struct hci_conn,
 					     disc_work.work);
-	__u8 reason;
 
 	BT_DBG("hcon %p state %s", conn, state_to_string(conn->state));
 
@@ -253,8 +280,7 @@ static void hci_conn_timeout(struct work_struct *work)
 		break;
 	case BT_CONFIG:
 	case BT_CONNECTED:
-		reason = hci_proto_disconn_ind(conn);
-		hci_acl_disconn(conn, reason);
+		hci_conn_disconnect(conn);
 		break;
 	default:
 		conn->state = BT_CLOSED;
@@ -320,7 +346,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
 {
 	struct hci_conn *conn;
 
-	BT_DBG("%s dst %s", hdev->name, batostr(dst));
+	BT_DBG("%s dst %pMR", hdev->name, dst);
 
 	conn = kzalloc(sizeof(struct hci_conn), GFP_KERNEL);
 	if (!conn)
@@ -437,7 +463,7 @@ struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src)
 	int use_src = bacmp(src, BDADDR_ANY);
 	struct hci_dev *hdev = NULL, *d;
 
-	BT_DBG("%s -> %s", batostr(src), batostr(dst));
+	BT_DBG("%pMR -> %pMR", src, dst);
 
 	read_lock(&hci_dev_list_lock);
 
@@ -476,6 +502,9 @@ static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 {
 	struct hci_conn *le;
 
+	if (test_bit(HCI_LE_PERIPHERAL, &hdev->flags))
+		return ERR_PTR(-ENOTSUPP);
+
 	le = hci_conn_hash_lookup_ba(hdev, LE_LINK, dst);
 	if (!le) {
 		le = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
@@ -567,7 +596,7 @@ static struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type,
 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
 			     __u8 dst_type, __u8 sec_level, __u8 auth_type)
 {
-	BT_DBG("%s dst %s type 0x%x", hdev->name, batostr(dst), type);
+	BT_DBG("%s dst %pMR type 0x%x", hdev->name, dst, type);
 
 	switch (type) {
 	case LE_LINK:
@@ -933,6 +962,7 @@ struct hci_chan *hci_chan_create(struct hci_conn *conn)
 
 	chan->conn = conn;
 	skb_queue_head_init(&chan->data_q);
+	chan->state = BT_CONNECTED;
 
 	list_add_rcu(&chan->list, &conn->chan_list);
 
@@ -950,6 +980,8 @@ void hci_chan_del(struct hci_chan *chan)
 
 	synchronize_rcu();
 
+	hci_conn_put(conn);
+
 	skb_queue_purge(&chan->data_q);
 	kfree(chan);
 }
@@ -963,3 +995,35 @@ void hci_chan_list_flush(struct hci_conn *conn)
 	list_for_each_entry_safe(chan, n, &conn->chan_list, list)
 		hci_chan_del(chan);
 }
+
+static struct hci_chan *__hci_chan_lookup_handle(struct hci_conn *hcon,
+						 __u16 handle)
+{
+	struct hci_chan *hchan;
+
+	list_for_each_entry(hchan, &hcon->chan_list, list) {
+		if (hchan->handle == handle)
+			return hchan;
+	}
+
+	return NULL;
+}
+
+struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle)
+{
+	struct hci_conn_hash *h = &hdev->conn_hash;
+	struct hci_conn *hcon;
+	struct hci_chan *hchan = NULL;
+
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(hcon, &h->list, list) {
+		hchan = __hci_chan_lookup_handle(hcon, handle);
+		if (hchan)
+			break;
+	}
+
+	rcu_read_unlock();
+
+	return hchan;
+}
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index a0a2f97..596660d 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -178,48 +178,13 @@ static void hci_reset_req(struct hci_dev *hdev, unsigned long opt)
 
 static void bredr_init(struct hci_dev *hdev)
 {
-	struct hci_cp_delete_stored_link_key cp;
-	__le16 param;
-	__u8 flt_type;
-
 	hdev->flow_ctl_mode = HCI_FLOW_CTL_MODE_PACKET_BASED;
 
-	/* Mandatory initialization */
-
 	/* Read Local Supported Features */
 	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_FEATURES, 0, NULL);
 
 	/* Read Local Version */
 	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL);
-
-	/* Read Buffer Size (ACL mtu, max pkt, etc.) */
-	hci_send_cmd(hdev, HCI_OP_READ_BUFFER_SIZE, 0, NULL);
-
-	/* Read BD Address */
-	hci_send_cmd(hdev, HCI_OP_READ_BD_ADDR, 0, NULL);
-
-	/* Read Class of Device */
-	hci_send_cmd(hdev, HCI_OP_READ_CLASS_OF_DEV, 0, NULL);
-
-	/* Read Local Name */
-	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL);
-
-	/* Read Voice Setting */
-	hci_send_cmd(hdev, HCI_OP_READ_VOICE_SETTING, 0, NULL);
-
-	/* Optional initialization */
-
-	/* Clear Event Filters */
-	flt_type = HCI_FLT_CLEAR_ALL;
-	hci_send_cmd(hdev, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
-
-	/* Connection accept timeout ~20 secs */
-	param = __constant_cpu_to_le16(0x7d00);
-	hci_send_cmd(hdev, HCI_OP_WRITE_CA_TIMEOUT, 2, &param);
-
-	bacpy(&cp.bdaddr, BDADDR_ANY);
-	cp.delete_all = 1;
-	hci_send_cmd(hdev, HCI_OP_DELETE_STORED_LINK_KEY, sizeof(cp), &cp);
 }
 
 static void amp_init(struct hci_dev *hdev)
@@ -273,14 +238,6 @@ static void hci_init_req(struct hci_dev *hdev, unsigned long opt)
 	}
 }
 
-static void hci_le_init_req(struct hci_dev *hdev, unsigned long opt)
-{
-	BT_DBG("%s", hdev->name);
-
-	/* Read LE buffer size */
-	hci_send_cmd(hdev, HCI_OP_LE_READ_BUFFER_SIZE, 0, NULL);
-}
-
 static void hci_scan_req(struct hci_dev *hdev, unsigned long opt)
 {
 	__u8 scan = opt;
@@ -405,7 +362,7 @@ struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 	struct discovery_state *cache = &hdev->discovery;
 	struct inquiry_entry *e;
 
-	BT_DBG("cache %p, %s", cache, batostr(bdaddr));
+	BT_DBG("cache %p, %pMR", cache, bdaddr);
 
 	list_for_each_entry(e, &cache->all, all) {
 		if (!bacmp(&e->data.bdaddr, bdaddr))
@@ -421,7 +378,7 @@ struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 	struct discovery_state *cache = &hdev->discovery;
 	struct inquiry_entry *e;
 
-	BT_DBG("cache %p, %s", cache, batostr(bdaddr));
+	BT_DBG("cache %p, %pMR", cache, bdaddr);
 
 	list_for_each_entry(e, &cache->unknown, list) {
 		if (!bacmp(&e->data.bdaddr, bdaddr))
@@ -438,7 +395,7 @@ struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 	struct discovery_state *cache = &hdev->discovery;
 	struct inquiry_entry *e;
 
-	BT_DBG("cache %p bdaddr %s state %d", cache, batostr(bdaddr), state);
+	BT_DBG("cache %p bdaddr %pMR state %d", cache, bdaddr, state);
 
 	list_for_each_entry(e, &cache->resolve, list) {
 		if (!bacmp(bdaddr, BDADDR_ANY) && e->name_state == state)
@@ -475,7 +432,9 @@ bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 	struct discovery_state *cache = &hdev->discovery;
 	struct inquiry_entry *ie;
 
-	BT_DBG("cache %p, %s", cache, batostr(&data->bdaddr));
+	BT_DBG("cache %p, %pMR", cache, &data->bdaddr);
+
+	hci_remove_remote_oob_data(hdev, &data->bdaddr);
 
 	if (ssp)
 		*ssp = data->ssp_mode;
@@ -637,6 +596,99 @@ done:
 	return err;
 }
 
+static u8 create_ad(struct hci_dev *hdev, u8 *ptr)
+{
+	u8 ad_len = 0, flags = 0;
+	size_t name_len;
+
+	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags))
+		flags |= LE_AD_GENERAL;
+
+	if (!lmp_bredr_capable(hdev))
+		flags |= LE_AD_NO_BREDR;
+
+	if (lmp_le_br_capable(hdev))
+		flags |= LE_AD_SIM_LE_BREDR_CTRL;
+
+	if (lmp_host_le_br_capable(hdev))
+		flags |= LE_AD_SIM_LE_BREDR_HOST;
+
+	if (flags) {
+		BT_DBG("adv flags 0x%02x", flags);
+
+		ptr[0] = 2;
+		ptr[1] = EIR_FLAGS;
+		ptr[2] = flags;
+
+		ad_len += 3;
+		ptr += 3;
+	}
+
+	if (hdev->adv_tx_power != HCI_TX_POWER_INVALID) {
+		ptr[0] = 2;
+		ptr[1] = EIR_TX_POWER;
+		ptr[2] = (u8) hdev->adv_tx_power;
+
+		ad_len += 3;
+		ptr += 3;
+	}
+
+	name_len = strlen(hdev->dev_name);
+	if (name_len > 0) {
+		size_t max_len = HCI_MAX_AD_LENGTH - ad_len - 2;
+
+		if (name_len > max_len) {
+			name_len = max_len;
+			ptr[1] = EIR_NAME_SHORT;
+		} else
+			ptr[1] = EIR_NAME_COMPLETE;
+
+		ptr[0] = name_len + 1;
+
+		memcpy(ptr + 2, hdev->dev_name, name_len);
+
+		ad_len += (name_len + 2);
+		ptr += (name_len + 2);
+	}
+
+	return ad_len;
+}
+
+int hci_update_ad(struct hci_dev *hdev)
+{
+	struct hci_cp_le_set_adv_data cp;
+	u8 len;
+	int err;
+
+	hci_dev_lock(hdev);
+
+	if (!lmp_le_capable(hdev)) {
+		err = -EINVAL;
+		goto unlock;
+	}
+
+	memset(&cp, 0, sizeof(cp));
+
+	len = create_ad(hdev, cp.data);
+
+	if (hdev->adv_data_len == len &&
+	    memcmp(cp.data, hdev->adv_data, len) == 0) {
+		err = 0;
+		goto unlock;
+	}
+
+	memcpy(hdev->adv_data, cp.data, sizeof(cp.data));
+	hdev->adv_data_len = len;
+
+	cp.length = len;
+	err = hci_send_cmd(hdev, HCI_OP_LE_SET_ADV_DATA, sizeof(cp), &cp);
+
+unlock:
+	hci_dev_unlock(hdev);
+
+	return err;
+}
+
 /* ---- HCI ioctl helpers ---- */
 
 int hci_dev_open(__u16 dev)
@@ -687,10 +739,6 @@ int hci_dev_open(__u16 dev)
 
 		ret = __hci_request(hdev, hci_init_req, 0, HCI_INIT_TIMEOUT);
 
-		if (lmp_host_le_capable(hdev))
-			ret = __hci_request(hdev, hci_le_init_req, 0,
-					    HCI_INIT_TIMEOUT);
-
 		clear_bit(HCI_INIT, &hdev->flags);
 	}
 
@@ -698,6 +746,7 @@ int hci_dev_open(__u16 dev)
 		hci_dev_hold(hdev);
 		set_bit(HCI_UP, &hdev->flags);
 		hci_notify(hdev, HCI_DEV_UP);
+		hci_update_ad(hdev);
 		if (!test_bit(HCI_SETUP, &hdev->dev_flags) &&
 		    mgmt_valid_hdev(hdev)) {
 			hci_dev_lock(hdev);
@@ -812,6 +861,9 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 	/* Clear flags */
 	hdev->flags = 0;
 
+	/* Controller radio is available but is currently powered down */
+	hdev->amp_status = 0;
+
 	memset(hdev->eir, 0, sizeof(hdev->eir));
 	memset(hdev->dev_class, 0, sizeof(hdev->dev_class));
 
@@ -1039,10 +1091,17 @@ int hci_get_dev_info(void __user *arg)
 	di.type     = (hdev->bus & 0x0f) | (hdev->dev_type << 4);
 	di.flags    = hdev->flags;
 	di.pkt_type = hdev->pkt_type;
-	di.acl_mtu  = hdev->acl_mtu;
-	di.acl_pkts = hdev->acl_pkts;
-	di.sco_mtu  = hdev->sco_mtu;
-	di.sco_pkts = hdev->sco_pkts;
+	if (lmp_bredr_capable(hdev)) {
+		di.acl_mtu  = hdev->acl_mtu;
+		di.acl_pkts = hdev->acl_pkts;
+		di.sco_mtu  = hdev->sco_mtu;
+		di.sco_pkts = hdev->sco_pkts;
+	} else {
+		di.acl_mtu  = hdev->le_mtu;
+		di.acl_pkts = hdev->le_pkts;
+		di.sco_mtu  = 0;
+		di.sco_pkts = 0;
+	}
 	di.link_policy = hdev->link_policy;
 	di.link_mode   = hdev->link_mode;
 
@@ -1259,7 +1318,7 @@ int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
 		list_add(&key->list, &hdev->link_keys);
 	}
 
-	BT_DBG("%s key for %s type %u", hdev->name, batostr(bdaddr), type);
+	BT_DBG("%s key for %pMR type %u", hdev->name, bdaddr, type);
 
 	/* Some buggy controller combinations generate a changed
 	 * combination key for legacy pairing even when there's no
@@ -1338,7 +1397,7 @@ int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)
 	if (!key)
 		return -ENOENT;
 
-	BT_DBG("%s removing %s", hdev->name, batostr(bdaddr));
+	BT_DBG("%s removing %pMR", hdev->name, bdaddr);
 
 	list_del(&key->list);
 	kfree(key);
@@ -1354,7 +1413,7 @@ int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr)
 		if (bacmp(bdaddr, &k->bdaddr))
 			continue;
 
-		BT_DBG("%s removing %s", hdev->name, batostr(bdaddr));
+		BT_DBG("%s removing %pMR", hdev->name, bdaddr);
 
 		list_del(&k->list);
 		kfree(k);
@@ -1401,7 +1460,7 @@ int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr)
 	if (!data)
 		return -ENOENT;
 
-	BT_DBG("%s removing %s", hdev->name, batostr(bdaddr));
+	BT_DBG("%s removing %pMR", hdev->name, bdaddr);
 
 	list_del(&data->list);
 	kfree(data);
@@ -1440,7 +1499,7 @@ int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
 	memcpy(data->hash, hash, sizeof(data->hash));
 	memcpy(data->randomizer, randomizer, sizeof(data->randomizer));
 
-	BT_DBG("%s for %s", hdev->name, batostr(bdaddr));
+	BT_DBG("%s for %pMR", hdev->name, bdaddr);
 
 	return 0;
 }
@@ -1617,6 +1676,9 @@ int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
 
 	BT_DBG("%s", hdev->name);
 
+	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags))
+		return -ENOTSUPP;
+
 	if (work_busy(&hdev->le_scan))
 		return -EINPROGRESS;
 
@@ -1643,6 +1705,8 @@ struct hci_dev *hci_alloc_dev(void)
 	hdev->esco_type = (ESCO_HV1);
 	hdev->link_mode = (HCI_LM_ACCEPT);
 	hdev->io_capability = 0x03; /* No Input No Output */
+	hdev->inq_tx_power = HCI_TX_POWER_INVALID;
+	hdev->adv_tx_power = HCI_TX_POWER_INVALID;
 
 	hdev->sniff_max_interval = 800;
 	hdev->sniff_min_interval = 80;
@@ -1793,6 +1857,8 @@ void hci_unregister_dev(struct hci_dev *hdev)
 	for (i = 0; i < NUM_REASSEMBLY; i++)
 		kfree_skb(hdev->reassembly[i]);
 
+	cancel_work_sync(&hdev->power_on);
+
 	if (!test_bit(HCI_INIT, &hdev->flags) &&
 	    !test_bit(HCI_SETUP, &hdev->dev_flags)) {
 		hci_dev_lock(hdev);
@@ -2153,9 +2219,10 @@ static void hci_add_acl_hdr(struct sk_buff *skb, __u16 handle, __u16 flags)
 	hdr->dlen   = cpu_to_le16(len);
 }
 
-static void hci_queue_acl(struct hci_conn *conn, struct sk_buff_head *queue,
+static void hci_queue_acl(struct hci_chan *chan, struct sk_buff_head *queue,
 			  struct sk_buff *skb, __u16 flags)
 {
+	struct hci_conn *conn = chan->conn;
 	struct hci_dev *hdev = conn->hdev;
 	struct sk_buff *list;
 
@@ -2163,7 +2230,18 @@ static void hci_queue_acl(struct hci_conn *conn, struct sk_buff_head *queue,
 	skb->data_len = 0;
 
 	bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
-	hci_add_acl_hdr(skb, conn->handle, flags);
+
+	switch (hdev->dev_type) {
+	case HCI_BREDR:
+		hci_add_acl_hdr(skb, conn->handle, flags);
+		break;
+	case HCI_AMP:
+		hci_add_acl_hdr(skb, chan->handle, flags);
+		break;
+	default:
+		BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type);
+		return;
+	}
 
 	list = skb_shinfo(skb)->frag_list;
 	if (!list) {
@@ -2202,14 +2280,13 @@ static void hci_queue_acl(struct hci_conn *conn, struct sk_buff_head *queue,
 
 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags)
 {
-	struct hci_conn *conn = chan->conn;
-	struct hci_dev *hdev = conn->hdev;
+	struct hci_dev *hdev = chan->conn->hdev;
 
 	BT_DBG("%s chan %p flags 0x%4.4x", hdev->name, chan, flags);
 
 	skb->dev = (void *) hdev;
 
-	hci_queue_acl(conn, &chan->data_q, skb, flags);
+	hci_queue_acl(chan, &chan->data_q, skb, flags);
 
 	queue_work(hdev->workqueue, &hdev->tx_work);
 }
@@ -2311,8 +2388,8 @@ static void hci_link_tx_to(struct hci_dev *hdev, __u8 type)
 	/* Kill stalled connections */
 	list_for_each_entry_rcu(c, &h->list, list) {
 		if (c->type == type && c->sent) {
-			BT_ERR("%s killing stalled connection %s",
-			       hdev->name, batostr(&c->dst));
+			BT_ERR("%s killing stalled connection %pMR",
+			       hdev->name, &c->dst);
 			hci_acl_disconn(c, HCI_ERROR_REMOTE_USER_TERM);
 		}
 	}
@@ -2381,6 +2458,9 @@ static struct hci_chan *hci_chan_sent(struct hci_dev *hdev, __u8 type,
 	case ACL_LINK:
 		cnt = hdev->acl_cnt;
 		break;
+	case AMP_LINK:
+		cnt = hdev->block_cnt;
+		break;
 	case SCO_LINK:
 	case ESCO_LINK:
 		cnt = hdev->sco_cnt;
@@ -2510,11 +2590,19 @@ static void hci_sched_acl_blk(struct hci_dev *hdev)
 	struct hci_chan *chan;
 	struct sk_buff *skb;
 	int quote;
+	u8 type;
 
 	__check_timeout(hdev, cnt);
 
+	BT_DBG("%s", hdev->name);
+
+	if (hdev->dev_type == HCI_AMP)
+		type = AMP_LINK;
+	else
+		type = ACL_LINK;
+
 	while (hdev->block_cnt > 0 &&
-	       (chan = hci_chan_sent(hdev, ACL_LINK, &quote))) {
+	       (chan = hci_chan_sent(hdev, type, &quote))) {
 		u32 priority = (skb_peek(&chan->data_q))->priority;
 		while (quote > 0 && (skb = skb_peek(&chan->data_q))) {
 			int blocks;
@@ -2547,14 +2635,19 @@ static void hci_sched_acl_blk(struct hci_dev *hdev)
 	}
 
 	if (cnt != hdev->block_cnt)
-		hci_prio_recalculate(hdev, ACL_LINK);
+		hci_prio_recalculate(hdev, type);
 }
 
 static void hci_sched_acl(struct hci_dev *hdev)
 {
 	BT_DBG("%s", hdev->name);
 
-	if (!hci_conn_num(hdev, ACL_LINK))
+	/* No ACL link over BR/EDR controller */
+	if (!hci_conn_num(hdev, ACL_LINK) && hdev->dev_type == HCI_BREDR)
+		return;
+
+	/* No AMP link over AMP controller */
+	if (!hci_conn_num(hdev, AMP_LINK) && hdev->dev_type == HCI_AMP)
 		return;
 
 	switch (hdev->flow_ctl_mode) {
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 2022b43..705078a 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -24,12 +24,13 @@
 
 /* Bluetooth HCI event handling. */
 
-#include <linux/export.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/mgmt.h>
+#include <net/bluetooth/a2mp.h>
+#include <net/bluetooth/amp.h>
 
 /* Handle HCI Event packets */
 
@@ -201,6 +202,11 @@ static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
 			     BIT(HCI_PERIODIC_INQ));
 
 	hdev->discovery.state = DISCOVERY_STOPPED;
+	hdev->inq_tx_power = HCI_TX_POWER_INVALID;
+	hdev->adv_tx_power = HCI_TX_POWER_INVALID;
+
+	memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
+	hdev->adv_data_len = 0;
 }
 
 static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
@@ -223,6 +229,9 @@ static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
 
 	hci_dev_unlock(hdev);
 
+	if (!status && !test_bit(HCI_INIT, &hdev->flags))
+		hci_update_ad(hdev);
+
 	hci_req_complete(hdev, HCI_OP_WRITE_LOCAL_NAME, status);
 }
 
@@ -438,7 +447,7 @@ static void hci_cc_host_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
 static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
-	void *sent;
+	struct hci_cp_write_ssp_mode *sent;
 
 	BT_DBG("%s status 0x%2.2x", hdev->name, status);
 
@@ -446,10 +455,17 @@ static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
 	if (!sent)
 		return;
 
+	if (!status) {
+		if (sent->mode)
+			hdev->host_features[0] |= LMP_HOST_SSP;
+		else
+			hdev->host_features[0] &= ~LMP_HOST_SSP;
+	}
+
 	if (test_bit(HCI_MGMT, &hdev->dev_flags))
-		mgmt_ssp_enable_complete(hdev, *((u8 *) sent), status);
+		mgmt_ssp_enable_complete(hdev, sent->mode, status);
 	else if (!status) {
-		if (*((u8 *) sent))
+		if (sent->mode)
 			set_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
 		else
 			clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
@@ -458,10 +474,10 @@ static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
 
 static u8 hci_get_inquiry_mode(struct hci_dev *hdev)
 {
-	if (hdev->features[6] & LMP_EXT_INQ)
+	if (lmp_ext_inq_capable(hdev))
 		return 2;
 
-	if (hdev->features[3] & LMP_RSSI_INQ)
+	if (lmp_inq_rssi_capable(hdev))
 		return 1;
 
 	if (hdev->manufacturer == 11 && hdev->hci_rev == 0x00 &&
@@ -505,28 +521,30 @@ static void hci_setup_event_mask(struct hci_dev *hdev)
 	if (hdev->hci_ver < BLUETOOTH_VER_1_2)
 		return;
 
-	events[4] |= 0x01; /* Flow Specification Complete */
-	events[4] |= 0x02; /* Inquiry Result with RSSI */
-	events[4] |= 0x04; /* Read Remote Extended Features Complete */
-	events[5] |= 0x08; /* Synchronous Connection Complete */
-	events[5] |= 0x10; /* Synchronous Connection Changed */
+	if (lmp_bredr_capable(hdev)) {
+		events[4] |= 0x01; /* Flow Specification Complete */
+		events[4] |= 0x02; /* Inquiry Result with RSSI */
+		events[4] |= 0x04; /* Read Remote Extended Features Complete */
+		events[5] |= 0x08; /* Synchronous Connection Complete */
+		events[5] |= 0x10; /* Synchronous Connection Changed */
+	}
 
-	if (hdev->features[3] & LMP_RSSI_INQ)
+	if (lmp_inq_rssi_capable(hdev))
 		events[4] |= 0x02; /* Inquiry Result with RSSI */
 
 	if (lmp_sniffsubr_capable(hdev))
 		events[5] |= 0x20; /* Sniff Subrating */
 
-	if (hdev->features[5] & LMP_PAUSE_ENC)
+	if (lmp_pause_enc_capable(hdev))
 		events[5] |= 0x80; /* Encryption Key Refresh Complete */
 
-	if (hdev->features[6] & LMP_EXT_INQ)
+	if (lmp_ext_inq_capable(hdev))
 		events[5] |= 0x40; /* Extended Inquiry Result */
 
 	if (lmp_no_flush_capable(hdev))
 		events[7] |= 0x01; /* Enhanced Flush Complete */
 
-	if (hdev->features[7] & LMP_LSTO)
+	if (lmp_lsto_capable(hdev))
 		events[6] |= 0x80; /* Link Supervision Timeout Changed */
 
 	if (lmp_ssp_capable(hdev)) {
@@ -546,6 +564,53 @@ static void hci_setup_event_mask(struct hci_dev *hdev)
 		events[7] |= 0x20;	/* LE Meta-Event */
 
 	hci_send_cmd(hdev, HCI_OP_SET_EVENT_MASK, sizeof(events), events);
+
+	if (lmp_le_capable(hdev)) {
+		memset(events, 0, sizeof(events));
+		events[0] = 0x1f;
+		hci_send_cmd(hdev, HCI_OP_LE_SET_EVENT_MASK,
+			     sizeof(events), events);
+	}
+}
+
+static void bredr_setup(struct hci_dev *hdev)
+{
+	struct hci_cp_delete_stored_link_key cp;
+	__le16 param;
+	__u8 flt_type;
+
+	/* Read Buffer Size (ACL mtu, max pkt, etc.) */
+	hci_send_cmd(hdev, HCI_OP_READ_BUFFER_SIZE, 0, NULL);
+
+	/* Read Class of Device */
+	hci_send_cmd(hdev, HCI_OP_READ_CLASS_OF_DEV, 0, NULL);
+
+	/* Read Local Name */
+	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL);
+
+	/* Read Voice Setting */
+	hci_send_cmd(hdev, HCI_OP_READ_VOICE_SETTING, 0, NULL);
+
+	/* Clear Event Filters */
+	flt_type = HCI_FLT_CLEAR_ALL;
+	hci_send_cmd(hdev, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
+
+	/* Connection accept timeout ~20 secs */
+	param = __constant_cpu_to_le16(0x7d00);
+	hci_send_cmd(hdev, HCI_OP_WRITE_CA_TIMEOUT, 2, &param);
+
+	bacpy(&cp.bdaddr, BDADDR_ANY);
+	cp.delete_all = 1;
+	hci_send_cmd(hdev, HCI_OP_DELETE_STORED_LINK_KEY, sizeof(cp), &cp);
+}
+
+static void le_setup(struct hci_dev *hdev)
+{
+	/* Read LE Buffer Size */
+	hci_send_cmd(hdev, HCI_OP_LE_READ_BUFFER_SIZE, 0, NULL);
+
+	/* Read LE Advertising Channel TX Power */
+	hci_send_cmd(hdev, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL);
 }
 
 static void hci_setup(struct hci_dev *hdev)
@@ -553,6 +618,15 @@ static void hci_setup(struct hci_dev *hdev)
 	if (hdev->dev_type != HCI_BREDR)
 		return;
 
+	/* Read BD Address */
+	hci_send_cmd(hdev, HCI_OP_READ_BD_ADDR, 0, NULL);
+
+	if (lmp_bredr_capable(hdev))
+		bredr_setup(hdev);
+
+	if (lmp_le_capable(hdev))
+		le_setup(hdev);
+
 	hci_setup_event_mask(hdev);
 
 	if (hdev->hci_ver > BLUETOOTH_VER_1_1)
@@ -573,13 +647,13 @@ static void hci_setup(struct hci_dev *hdev)
 		}
 	}
 
-	if (hdev->features[3] & LMP_RSSI_INQ)
+	if (lmp_inq_rssi_capable(hdev))
 		hci_setup_inquiry_mode(hdev);
 
-	if (hdev->features[7] & LMP_INQ_TX_PWR)
+	if (lmp_inq_tx_pwr_capable(hdev))
 		hci_send_cmd(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL);
 
-	if (hdev->features[7] & LMP_EXTFEATURES) {
+	if (lmp_ext_feat_capable(hdev)) {
 		struct hci_cp_read_local_ext_features cp;
 
 		cp.page = 0x01;
@@ -626,11 +700,11 @@ static void hci_setup_link_policy(struct hci_dev *hdev)
 
 	if (lmp_rswitch_capable(hdev))
 		link_policy |= HCI_LP_RSWITCH;
-	if (hdev->features[0] & LMP_HOLD)
+	if (lmp_hold_capable(hdev))
 		link_policy |= HCI_LP_HOLD;
 	if (lmp_sniff_capable(hdev))
 		link_policy |= HCI_LP_SNIFF;
-	if (hdev->features[1] & LMP_PARK)
+	if (lmp_park_capable(hdev))
 		link_policy |= HCI_LP_PARK;
 
 	cp.policy = cpu_to_le16(link_policy);
@@ -720,10 +794,10 @@ static void hci_set_le_support(struct hci_dev *hdev)
 
 	if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
 		cp.le = 1;
-		cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR);
+		cp.simul = lmp_le_br_capable(hdev);
 	}
 
-	if (cp.le != !!(hdev->host_features[0] & LMP_HOST_LE))
+	if (cp.le != lmp_host_le_capable(hdev))
 		hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp),
 			     &cp);
 }
@@ -846,7 +920,7 @@ static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
 	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
 
 	if (rp->status)
-		return;
+		goto a2mp_rsp;
 
 	hdev->amp_status = rp->amp_status;
 	hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
@@ -860,6 +934,46 @@ static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
 	hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
 
 	hci_req_complete(hdev, HCI_OP_READ_LOCAL_AMP_INFO, rp->status);
+
+a2mp_rsp:
+	a2mp_send_getinfo_rsp(hdev);
+}
+
+static void hci_cc_read_local_amp_assoc(struct hci_dev *hdev,
+					struct sk_buff *skb)
+{
+	struct hci_rp_read_local_amp_assoc *rp = (void *) skb->data;
+	struct amp_assoc *assoc = &hdev->loc_assoc;
+	size_t rem_len, frag_len;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
+
+	if (rp->status)
+		goto a2mp_rsp;
+
+	frag_len = skb->len - sizeof(*rp);
+	rem_len = __le16_to_cpu(rp->rem_len);
+
+	if (rem_len > frag_len) {
+		BT_DBG("frag_len %zu rem_len %zu", frag_len, rem_len);
+
+		memcpy(assoc->data + assoc->offset, rp->frag, frag_len);
+		assoc->offset += frag_len;
+
+		/* Read other fragments */
+		amp_read_loc_assoc_frag(hdev, rp->phy_handle);
+
+		return;
+	}
+
+	memcpy(assoc->data + assoc->offset, rp->frag, rem_len);
+	assoc->len = assoc->offset + rem_len;
+	assoc->offset = 0;
+
+a2mp_rsp:
+	/* Send A2MP Rsp when all fragments are received */
+	a2mp_send_getampassoc_rsp(hdev, rp->status);
+	a2mp_send_create_phy_link_req(hdev, rp->status);
 }
 
 static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,
@@ -976,6 +1090,31 @@ static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
 	hci_req_complete(hdev, HCI_OP_LE_READ_BUFFER_SIZE, rp->status);
 }
 
+static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev,
+					struct sk_buff *skb)
+{
+	struct hci_rp_le_read_adv_tx_power *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
+
+	if (!rp->status) {
+		hdev->adv_tx_power = rp->tx_power;
+		if (!test_bit(HCI_INIT, &hdev->flags))
+			hci_update_ad(hdev);
+	}
+
+	hci_req_complete(hdev, HCI_OP_LE_READ_ADV_TX_POWER, rp->status);
+}
+
+static void hci_cc_le_set_event_mask(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, status);
+
+	hci_req_complete(hdev, HCI_OP_LE_SET_EVENT_MASK, status);
+}
+
 static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
@@ -1051,6 +1190,33 @@ static void hci_cc_read_local_oob_data_reply(struct hci_dev *hdev,
 	hci_dev_unlock(hdev);
 }
 
+static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 *sent, status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, status);
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
+	if (!sent)
+		return;
+
+	hci_dev_lock(hdev);
+
+	if (!status) {
+		if (*sent)
+			set_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+		else
+			clear_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+	}
+
+	hci_dev_unlock(hdev);
+
+	if (!test_bit(HCI_INIT, &hdev->flags))
+		hci_update_ad(hdev);
+
+	hci_req_complete(hdev, HCI_OP_LE_SET_ADV_ENABLE, status);
+}
+
 static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
@@ -1165,6 +1331,11 @@ static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
 			hdev->host_features[0] |= LMP_HOST_LE;
 		else
 			hdev->host_features[0] &= ~LMP_HOST_LE;
+
+		if (sent->simul)
+			hdev->host_features[0] |= LMP_HOST_LE_BREDR;
+		else
+			hdev->host_features[0] &= ~LMP_HOST_LE_BREDR;
 	}
 
 	if (test_bit(HCI_MGMT, &hdev->dev_flags) &&
@@ -1174,6 +1345,20 @@ static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
 	hci_req_complete(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, status);
 }
 
+static void hci_cc_write_remote_amp_assoc(struct hci_dev *hdev,
+					  struct sk_buff *skb)
+{
+	struct hci_rp_write_remote_amp_assoc *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%2.2x phy_handle 0x%2.2x",
+	       hdev->name, rp->status, rp->phy_handle);
+
+	if (rp->status)
+		return;
+
+	amp_write_rem_assoc_continue(hdev, rp->phy_handle);
+}
+
 static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
 {
 	BT_DBG("%s status 0x%2.2x", hdev->name, status);
@@ -1210,7 +1395,7 @@ static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
 
 	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
 
-	BT_DBG("%s bdaddr %s hcon %p", hdev->name, batostr(&cp->bdaddr), conn);
+	BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn);
 
 	if (status) {
 		if (conn && conn->state == BT_CONNECT) {
@@ -1639,8 +1824,7 @@ static void hci_cs_le_create_conn(struct hci_dev *hdev, __u8 status)
 			return;
 		}
 
-		BT_DBG("%s bdaddr %s conn %p", hdev->name, batostr(&conn->dst),
-		       conn);
+		BT_DBG("%s bdaddr %pMR conn %p", hdev->name, &conn->dst, conn);
 
 		conn->state = BT_CLOSED;
 		mgmt_connect_failed(hdev, &conn->dst, conn->type,
@@ -1657,6 +1841,52 @@ static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
 	BT_DBG("%s status 0x%2.2x", hdev->name, status);
 }
 
+static void hci_cs_create_phylink(struct hci_dev *hdev, u8 status)
+{
+	struct hci_cp_create_phy_link *cp;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, status);
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_PHY_LINK);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	if (status) {
+		struct hci_conn *hcon;
+
+		hcon = hci_conn_hash_lookup_handle(hdev, cp->phy_handle);
+		if (hcon)
+			hci_conn_del(hcon);
+	} else {
+		amp_write_remote_assoc(hdev, cp->phy_handle);
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cs_accept_phylink(struct hci_dev *hdev, u8 status)
+{
+	struct hci_cp_accept_phy_link *cp;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, status);
+
+	if (status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_ACCEPT_PHY_LINK);
+	if (!cp)
+		return;
+
+	amp_write_remote_assoc(hdev, cp->phy_handle);
+}
+
+static void hci_cs_create_logical_link(struct hci_dev *hdev, u8 status)
+{
+	BT_DBG("%s status 0x%2.2x", hdev->name, status);
+}
+
 static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
@@ -1817,15 +2047,53 @@ unlock:
 	hci_conn_check_pending(hdev);
 }
 
+void hci_conn_accept(struct hci_conn *conn, int mask)
+{
+	struct hci_dev *hdev = conn->hdev;
+
+	BT_DBG("conn %p", conn);
+
+	conn->state = BT_CONFIG;
+
+	if (!lmp_esco_capable(hdev)) {
+		struct hci_cp_accept_conn_req cp;
+
+		bacpy(&cp.bdaddr, &conn->dst);
+
+		if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
+			cp.role = 0x00; /* Become master */
+		else
+			cp.role = 0x01; /* Remain slave */
+
+		hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
+	} else /* lmp_esco_capable(hdev)) */ {
+		struct hci_cp_accept_sync_conn_req cp;
+
+		bacpy(&cp.bdaddr, &conn->dst);
+		cp.pkt_type = cpu_to_le16(conn->pkt_type);
+
+		cp.tx_bandwidth   = __constant_cpu_to_le32(0x00001f40);
+		cp.rx_bandwidth   = __constant_cpu_to_le32(0x00001f40);
+		cp.max_latency    = __constant_cpu_to_le16(0xffff);
+		cp.content_format = cpu_to_le16(hdev->voice_setting);
+		cp.retrans_effort = 0xff;
+
+		hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ,
+			     sizeof(cp), &cp);
+	}
+}
+
 static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_conn_request *ev = (void *) skb->data;
 	int mask = hdev->link_mode;
+	__u8 flags = 0;
 
-	BT_DBG("%s bdaddr %s type 0x%x", hdev->name, batostr(&ev->bdaddr),
+	BT_DBG("%s bdaddr %pMR type 0x%x", hdev->name, &ev->bdaddr,
 	       ev->link_type);
 
-	mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type);
+	mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
+				      &flags);
 
 	if ((mask & HCI_LM_ACCEPT) &&
 	    !hci_blacklist_lookup(hdev, &ev->bdaddr)) {
@@ -1851,12 +2119,13 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		}
 
 		memcpy(conn->dev_class, ev->dev_class, 3);
-		conn->state = BT_CONNECT;
 
 		hci_dev_unlock(hdev);
 
-		if (ev->link_type == ACL_LINK || !lmp_esco_capable(hdev)) {
+		if (ev->link_type == ACL_LINK ||
+		    (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
 			struct hci_cp_accept_conn_req cp;
+			conn->state = BT_CONNECT;
 
 			bacpy(&cp.bdaddr, &ev->bdaddr);
 
@@ -1867,8 +2136,9 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
 			hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp),
 				     &cp);
-		} else {
+		} else if (!(flags & HCI_PROTO_DEFER)) {
 			struct hci_cp_accept_sync_conn_req cp;
+			conn->state = BT_CONNECT;
 
 			bacpy(&cp.bdaddr, &ev->bdaddr);
 			cp.pkt_type = cpu_to_le16(conn->pkt_type);
@@ -1881,6 +2151,10 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
 			hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ,
 				     sizeof(cp), &cp);
+		} else {
+			conn->state = BT_CONNECT2;
+			hci_proto_connect_cfm(conn, 0);
+			hci_conn_put(conn);
 		}
 	} else {
 		/* Connection rejected */
@@ -2314,6 +2588,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cc_read_local_amp_info(hdev, skb);
 		break;
 
+	case HCI_OP_READ_LOCAL_AMP_ASSOC:
+		hci_cc_read_local_amp_assoc(hdev, skb);
+		break;
+
 	case HCI_OP_DELETE_STORED_LINK_KEY:
 		hci_cc_delete_stored_link_key(hdev, skb);
 		break;
@@ -2350,6 +2628,14 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cc_le_read_buffer_size(hdev, skb);
 		break;
 
+	case HCI_OP_LE_READ_ADV_TX_POWER:
+		hci_cc_le_read_adv_tx_power(hdev, skb);
+		break;
+
+	case HCI_OP_LE_SET_EVENT_MASK:
+		hci_cc_le_set_event_mask(hdev, skb);
+		break;
+
 	case HCI_OP_USER_CONFIRM_REPLY:
 		hci_cc_user_confirm_reply(hdev, skb);
 		break;
@@ -2370,6 +2656,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cc_le_set_scan_param(hdev, skb);
 		break;
 
+	case HCI_OP_LE_SET_ADV_ENABLE:
+		hci_cc_le_set_adv_enable(hdev, skb);
+		break;
+
 	case HCI_OP_LE_SET_SCAN_ENABLE:
 		hci_cc_le_set_scan_enable(hdev, skb);
 		break;
@@ -2386,6 +2676,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cc_write_le_host_supported(hdev, skb);
 		break;
 
+	case HCI_OP_WRITE_REMOTE_AMP_ASSOC:
+		hci_cc_write_remote_amp_assoc(hdev, skb);
+		break;
+
 	default:
 		BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
 		break;
@@ -2467,6 +2761,18 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cs_le_start_enc(hdev, ev->status);
 		break;
 
+	case HCI_OP_CREATE_PHY_LINK:
+		hci_cs_create_phylink(hdev, ev->status);
+		break;
+
+	case HCI_OP_ACCEPT_PHY_LINK:
+		hci_cs_accept_phylink(hdev, ev->status);
+		break;
+
+	case HCI_OP_CREATE_LOGICAL_LINK:
+		hci_cs_create_logical_link(hdev, ev->status);
+		break;
+
 	default:
 		BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
 		break;
@@ -2574,6 +2880,27 @@ static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
 	queue_work(hdev->workqueue, &hdev->tx_work);
 }
 
+static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
+						 __u16 handle)
+{
+	struct hci_chan *chan;
+
+	switch (hdev->dev_type) {
+	case HCI_BREDR:
+		return hci_conn_hash_lookup_handle(hdev, handle);
+	case HCI_AMP:
+		chan = hci_chan_lookup_handle(hdev, handle);
+		if (chan)
+			return chan->conn;
+		break;
+	default:
+		BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type);
+		break;
+	}
+
+	return NULL;
+}
+
 static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
@@ -2595,13 +2922,13 @@ static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
 	for (i = 0; i < ev->num_hndl; i++) {
 		struct hci_comp_blocks_info *info = &ev->handles[i];
-		struct hci_conn *conn;
+		struct hci_conn *conn = NULL;
 		__u16  handle, block_count;
 
 		handle = __le16_to_cpu(info->handle);
 		block_count = __le16_to_cpu(info->blocks);
 
-		conn = hci_conn_hash_lookup_handle(hdev, handle);
+		conn = __hci_conn_lookup_handle(hdev, handle);
 		if (!conn)
 			continue;
 
@@ -2609,6 +2936,7 @@ static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
 		switch (conn->type) {
 		case ACL_LINK:
+		case AMP_LINK:
 			hdev->block_cnt += block_count;
 			if (hdev->block_cnt > hdev->num_blocks)
 				hdev->block_cnt = hdev->num_blocks;
@@ -2705,13 +3033,13 @@ static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
 	key = hci_find_link_key(hdev, &ev->bdaddr);
 	if (!key) {
-		BT_DBG("%s link key not found for %s", hdev->name,
-		       batostr(&ev->bdaddr));
+		BT_DBG("%s link key not found for %pMR", hdev->name,
+		       &ev->bdaddr);
 		goto not_found;
 	}
 
-	BT_DBG("%s found key type %u for %s", hdev->name, key->type,
-	       batostr(&ev->bdaddr));
+	BT_DBG("%s found key type %u for %pMR", hdev->name, key->type,
+	       &ev->bdaddr);
 
 	if (!test_bit(HCI_DEBUG_KEYS, &hdev->dev_flags) &&
 	    key->type == HCI_LK_DEBUG_COMBINATION) {
@@ -3419,6 +3747,130 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
+static void hci_phy_link_complete_evt(struct hci_dev *hdev,
+				      struct sk_buff *skb)
+{
+	struct hci_ev_phy_link_complete *ev = (void *) skb->data;
+	struct hci_conn *hcon, *bredr_hcon;
+
+	BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle,
+	       ev->status);
+
+	hci_dev_lock(hdev);
+
+	hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
+	if (!hcon) {
+		hci_dev_unlock(hdev);
+		return;
+	}
+
+	if (ev->status) {
+		hci_conn_del(hcon);
+		hci_dev_unlock(hdev);
+		return;
+	}
+
+	bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
+
+	hcon->state = BT_CONNECTED;
+	bacpy(&hcon->dst, &bredr_hcon->dst);
+
+	hci_conn_hold(hcon);
+	hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
+	hci_conn_put(hcon);
+
+	hci_conn_hold_device(hcon);
+	hci_conn_add_sysfs(hcon);
+
+	amp_physical_cfm(bredr_hcon, hcon);
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_logical_link_complete *ev = (void *) skb->data;
+	struct hci_conn *hcon;
+	struct hci_chan *hchan;
+	struct amp_mgr *mgr;
+
+	BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
+	       hdev->name, le16_to_cpu(ev->handle), ev->phy_handle,
+	       ev->status);
+
+	hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
+	if (!hcon)
+		return;
+
+	/* Create AMP hchan */
+	hchan = hci_chan_create(hcon);
+	if (!hchan)
+		return;
+
+	hchan->handle = le16_to_cpu(ev->handle);
+
+	BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
+
+	mgr = hcon->amp_mgr;
+	if (mgr && mgr->bredr_chan) {
+		struct l2cap_chan *bredr_chan = mgr->bredr_chan;
+
+		l2cap_chan_lock(bredr_chan);
+
+		bredr_chan->conn->mtu = hdev->block_mtu;
+		l2cap_logical_cfm(bredr_chan, hchan, 0);
+		hci_conn_hold(hcon);
+
+		l2cap_chan_unlock(bredr_chan);
+	}
+}
+
+static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev,
+					     struct sk_buff *skb)
+{
+	struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data;
+	struct hci_chan *hchan;
+
+	BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name,
+	       le16_to_cpu(ev->handle), ev->status);
+
+	if (ev->status)
+		return;
+
+	hci_dev_lock(hdev);
+
+	hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
+	if (!hchan)
+		goto unlock;
+
+	amp_destroy_logical_link(hchan, ev->reason);
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
+					     struct sk_buff *skb)
+{
+	struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data;
+	struct hci_conn *hcon;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
+
+	if (ev->status)
+		return;
+
+	hci_dev_lock(hdev);
+
+	hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
+	if (hcon) {
+		hcon->state = BT_CLOSED;
+		hci_conn_del(hcon);
+	}
+
+	hci_dev_unlock(hdev);
+}
+
 static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_le_conn_complete *ev = (void *) skb->data;
@@ -3558,6 +4010,22 @@ static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
 	}
 }
 
+static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_channel_selected *ev = (void *) skb->data;
+	struct hci_conn *hcon;
+
+	BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle);
+
+	skb_pull(skb, sizeof(*ev));
+
+	hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
+	if (!hcon)
+		return;
+
+	amp_read_loc_assoc_final_data(hdev, hcon);
+}
+
 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_event_hdr *hdr = (void *) skb->data;
@@ -3722,10 +4190,30 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_le_meta_evt(hdev, skb);
 		break;
 
+	case HCI_EV_CHANNEL_SELECTED:
+		hci_chan_selected_evt(hdev, skb);
+		break;
+
 	case HCI_EV_REMOTE_OOB_DATA_REQUEST:
 		hci_remote_oob_data_request_evt(hdev, skb);
 		break;
 
+	case HCI_EV_PHY_LINK_COMPLETE:
+		hci_phy_link_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_LOGICAL_LINK_COMPLETE:
+		hci_loglink_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE:
+		hci_disconn_loglink_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_DISCONN_PHY_LINK_COMPLETE:
+		hci_disconn_phylink_complete_evt(hdev, skb);
+		break;
+
 	case HCI_EV_NUM_COMP_BLOCKS:
 		hci_num_comp_blocks_evt(hdev, skb);
 		break;
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index a20e61c..55cceee 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -38,7 +38,7 @@ static ssize_t show_link_address(struct device *dev,
 				 struct device_attribute *attr, char *buf)
 {
 	struct hci_conn *conn = to_hci_conn(dev);
-	return sprintf(buf, "%s\n", batostr(&conn->dst));
+	return sprintf(buf, "%pMR\n", &conn->dst);
 }
 
 static ssize_t show_link_features(struct device *dev,
@@ -224,7 +224,7 @@ static ssize_t show_address(struct device *dev,
 			    struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
-	return sprintf(buf, "%s\n", batostr(&hdev->bdaddr));
+	return sprintf(buf, "%pMR\n", &hdev->bdaddr);
 }
 
 static ssize_t show_features(struct device *dev,
@@ -406,8 +406,8 @@ static int inquiry_cache_show(struct seq_file *f, void *p)
 
 	list_for_each_entry(e, &cache->all, all) {
 		struct inquiry_data *data = &e->data;
-		seq_printf(f, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
-			   batostr(&data->bdaddr),
+		seq_printf(f, "%pMR %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
+			   &data->bdaddr,
 			   data->pscan_rep_mode, data->pscan_period_mode,
 			   data->pscan_mode, data->dev_class[2],
 			   data->dev_class[1], data->dev_class[0],
@@ -440,7 +440,7 @@ static int blacklist_show(struct seq_file *f, void *p)
 	hci_dev_lock(hdev);
 
 	list_for_each_entry(b, &hdev->blacklist, list)
-		seq_printf(f, "%s\n", batostr(&b->bdaddr));
+		seq_printf(f, "%pMR\n", &b->bdaddr);
 
 	hci_dev_unlock(hdev);
 
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index ccd985d..0c00284 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -932,8 +932,12 @@ static int hidp_setup_hid(struct hidp_session *session,
 	hid->country = req->country;
 
 	strncpy(hid->name, req->name, 128);
-	strncpy(hid->phys, batostr(&bt_sk(session->ctrl_sock->sk)->src), 64);
-	strncpy(hid->uniq, batostr(&bt_sk(session->ctrl_sock->sk)->dst), 64);
+
+	snprintf(hid->phys, sizeof(hid->phys), "%pMR",
+		 &bt_sk(session->ctrl_sock->sk)->src);
+
+	snprintf(hid->uniq, sizeof(hid->uniq), "%pMR",
+		 &bt_sk(session->ctrl_sock->sk)->dst);
 
 	hid->dev.parent = &session->conn->dev;
 	hid->ll_driver = &hidp_hid_driver;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index a91239dc..2c78208 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -38,6 +38,7 @@
 #include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/smp.h>
 #include <net/bluetooth/a2mp.h>
+#include <net/bluetooth/amp.h>
 
 bool disable_ertm;
 
@@ -48,19 +49,19 @@ static LIST_HEAD(chan_list);
 static DEFINE_RWLOCK(chan_list_lock);
 
 static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
-				u8 code, u8 ident, u16 dlen, void *data);
+				       u8 code, u8 ident, u16 dlen, void *data);
 static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len,
-								void *data);
+			   void *data);
 static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data);
-static void l2cap_send_disconn_req(struct l2cap_conn *conn,
-				   struct l2cap_chan *chan, int err);
+static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err);
 
 static void l2cap_tx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
-		    struct sk_buff_head *skbs, u8 event);
+		     struct sk_buff_head *skbs, u8 event);
 
 /* ---- L2CAP channels ---- */
 
-static struct l2cap_chan *__l2cap_get_chan_by_dcid(struct l2cap_conn *conn, u16 cid)
+static struct l2cap_chan *__l2cap_get_chan_by_dcid(struct l2cap_conn *conn,
+						   u16 cid)
 {
 	struct l2cap_chan *c;
 
@@ -71,7 +72,8 @@ static struct l2cap_chan *__l2cap_get_chan_by_dcid(struct l2cap_conn *conn, u16
 	return NULL;
 }
 
-static struct l2cap_chan *__l2cap_get_chan_by_scid(struct l2cap_conn *conn, u16 cid)
+static struct l2cap_chan *__l2cap_get_chan_by_scid(struct l2cap_conn *conn,
+						   u16 cid)
 {
 	struct l2cap_chan *c;
 
@@ -84,7 +86,8 @@ static struct l2cap_chan *__l2cap_get_chan_by_scid(struct l2cap_conn *conn, u16
 
 /* Find channel with given SCID.
  * Returns locked channel. */
-static struct l2cap_chan *l2cap_get_chan_by_scid(struct l2cap_conn *conn, u16 cid)
+static struct l2cap_chan *l2cap_get_chan_by_scid(struct l2cap_conn *conn,
+						 u16 cid)
 {
 	struct l2cap_chan *c;
 
@@ -97,7 +100,25 @@ static struct l2cap_chan *l2cap_get_chan_by_scid(struct l2cap_conn *conn, u16 ci
 	return c;
 }
 
-static struct l2cap_chan *__l2cap_get_chan_by_ident(struct l2cap_conn *conn, u8 ident)
+/* Find channel with given DCID.
+ * Returns locked channel.
+ */
+static struct l2cap_chan *l2cap_get_chan_by_dcid(struct l2cap_conn *conn,
+						 u16 cid)
+{
+	struct l2cap_chan *c;
+
+	mutex_lock(&conn->chan_lock);
+	c = __l2cap_get_chan_by_dcid(conn, cid);
+	if (c)
+		l2cap_chan_lock(c);
+	mutex_unlock(&conn->chan_lock);
+
+	return c;
+}
+
+static struct l2cap_chan *__l2cap_get_chan_by_ident(struct l2cap_conn *conn,
+						    u8 ident)
 {
 	struct l2cap_chan *c;
 
@@ -108,6 +129,20 @@ static struct l2cap_chan *__l2cap_get_chan_by_ident(struct l2cap_conn *conn, u8
 	return NULL;
 }
 
+static struct l2cap_chan *l2cap_get_chan_by_ident(struct l2cap_conn *conn,
+						  u8 ident)
+{
+	struct l2cap_chan *c;
+
+	mutex_lock(&conn->chan_lock);
+	c = __l2cap_get_chan_by_ident(conn, ident);
+	if (c)
+		l2cap_chan_lock(c);
+	mutex_unlock(&conn->chan_lock);
+
+	return c;
+}
+
 static struct l2cap_chan *__l2cap_global_chan_by_addr(__le16 psm, bdaddr_t *src)
 {
 	struct l2cap_chan *c;
@@ -178,7 +213,7 @@ static u16 l2cap_alloc_cid(struct l2cap_conn *conn)
 static void __l2cap_state_change(struct l2cap_chan *chan, int state)
 {
 	BT_DBG("chan %p %s -> %s", chan, state_to_string(chan->state),
-						state_to_string(state));
+	       state_to_string(state));
 
 	chan->state = state;
 	chan->ops->state_change(chan, state);
@@ -361,7 +396,7 @@ static void l2cap_seq_list_append(struct l2cap_seq_list *seq_list, u16 seq)
 static void l2cap_chan_timeout(struct work_struct *work)
 {
 	struct l2cap_chan *chan = container_of(work, struct l2cap_chan,
-							chan_timer.work);
+					       chan_timer.work);
 	struct l2cap_conn *conn = chan->conn;
 	int reason;
 
@@ -373,7 +408,7 @@ static void l2cap_chan_timeout(struct work_struct *work)
 	if (chan->state == BT_CONNECTED || chan->state == BT_CONFIG)
 		reason = ECONNREFUSED;
 	else if (chan->state == BT_CONNECT &&
-					chan->sec_level != BT_SECURITY_SDP)
+		 chan->sec_level != BT_SECURITY_SDP)
 		reason = ECONNREFUSED;
 	else
 		reason = ETIMEDOUT;
@@ -455,7 +490,7 @@ void l2cap_chan_set_defaults(struct l2cap_chan *chan)
 	set_bit(FLAG_FORCE_ACTIVE, &chan->flags);
 }
 
-static void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
+void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
 {
 	BT_DBG("conn %p, psm 0x%2.2x, dcid 0x%4.4x", conn,
 	       __le16_to_cpu(chan->psm), chan->dcid);
@@ -504,7 +539,7 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
 	chan->local_msdu	= L2CAP_DEFAULT_MAX_SDU_SIZE;
 	chan->local_sdu_itime	= L2CAP_DEFAULT_SDU_ITIME;
 	chan->local_acc_lat	= L2CAP_DEFAULT_ACC_LAT;
-	chan->local_flush_to	= L2CAP_DEFAULT_FLUSH_TO;
+	chan->local_flush_to	= L2CAP_EFS_DEFAULT_FLUSH_TO;
 
 	l2cap_chan_hold(chan);
 
@@ -527,6 +562,7 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err)
 	BT_DBG("chan %p, conn %p, err %d", chan, conn, err);
 
 	if (conn) {
+		struct amp_mgr *mgr = conn->hcon->amp_mgr;
 		/* Delete from channel list */
 		list_del(&chan->list);
 
@@ -536,10 +572,19 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err)
 
 		if (chan->chan_type != L2CAP_CHAN_CONN_FIX_A2MP)
 			hci_conn_put(conn->hcon);
+
+		if (mgr && mgr->bredr_chan == chan)
+			mgr->bredr_chan = NULL;
 	}
 
-	if (chan->ops->teardown)
-		chan->ops->teardown(chan, err);
+	if (chan->hs_hchan) {
+		struct hci_chan *hs_hchan = chan->hs_hchan;
+
+		BT_DBG("chan %p disconnect hs_hchan %p", chan, hs_hchan);
+		amp_disconnect_logical_link(hs_hchan);
+	}
+
+	chan->ops->teardown(chan, err);
 
 	if (test_bit(CONF_NOT_COMPLETE, &chan->conf_state))
 		return;
@@ -573,28 +618,27 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 	struct l2cap_conn *conn = chan->conn;
 	struct sock *sk = chan->sk;
 
-	BT_DBG("chan %p state %s sk %p", chan,
-					state_to_string(chan->state), sk);
+	BT_DBG("chan %p state %s sk %p", chan, state_to_string(chan->state),
+	       sk);
 
 	switch (chan->state) {
 	case BT_LISTEN:
-		if (chan->ops->teardown)
-			chan->ops->teardown(chan, 0);
+		chan->ops->teardown(chan, 0);
 		break;
 
 	case BT_CONNECTED:
 	case BT_CONFIG:
 		if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&
-					conn->hcon->type == ACL_LINK) {
+		    conn->hcon->type == ACL_LINK) {
 			__set_chan_timer(chan, sk->sk_sndtimeo);
-			l2cap_send_disconn_req(conn, chan, reason);
+			l2cap_send_disconn_req(chan, reason);
 		} else
 			l2cap_chan_del(chan, reason);
 		break;
 
 	case BT_CONNECT2:
 		if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&
-					conn->hcon->type == ACL_LINK) {
+		    conn->hcon->type == ACL_LINK) {
 			struct l2cap_conn_rsp rsp;
 			__u16 result;
 
@@ -609,7 +653,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 			rsp.result = cpu_to_le16(result);
 			rsp.status = __constant_cpu_to_le16(L2CAP_CS_NO_INFO);
 			l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
-							sizeof(rsp), &rsp);
+				       sizeof(rsp), &rsp);
 		}
 
 		l2cap_chan_del(chan, reason);
@@ -621,8 +665,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 		break;
 
 	default:
-		if (chan->ops->teardown)
-			chan->ops->teardown(chan, 0);
+		chan->ops->teardown(chan, 0);
 		break;
 	}
 }
@@ -691,7 +734,8 @@ static u8 l2cap_get_ident(struct l2cap_conn *conn)
 	return id;
 }
 
-static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len, void *data)
+static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len,
+			   void *data)
 {
 	struct sk_buff *skb = l2cap_build_cmd(conn, code, ident, len, data);
 	u8 flags;
@@ -712,16 +756,31 @@ static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len,
 	hci_send_acl(conn->hchan, skb, flags);
 }
 
+static bool __chan_is_moving(struct l2cap_chan *chan)
+{
+	return chan->move_state != L2CAP_MOVE_STABLE &&
+	       chan->move_state != L2CAP_MOVE_WAIT_PREPARE;
+}
+
 static void l2cap_do_send(struct l2cap_chan *chan, struct sk_buff *skb)
 {
 	struct hci_conn *hcon = chan->conn->hcon;
 	u16 flags;
 
 	BT_DBG("chan %p, skb %p len %d priority %u", chan, skb, skb->len,
-							skb->priority);
+	       skb->priority);
+
+	if (chan->hs_hcon && !__chan_is_moving(chan)) {
+		if (chan->hs_hchan)
+			hci_send_acl(chan->hs_hchan, skb, ACL_COMPLETE);
+		else
+			kfree_skb(skb);
+
+		return;
+	}
 
 	if (!test_bit(FLAG_FLUSHABLE, &chan->flags) &&
-					lmp_no_flush_capable(hcon->hdev))
+	    lmp_no_flush_capable(hcon->hdev))
 		flags = ACL_START_NO_FLUSH;
 	else
 		flags = ACL_START;
@@ -895,6 +954,9 @@ static void l2cap_send_sframe(struct l2cap_chan *chan,
 	if (!control->sframe)
 		return;
 
+	if (__chan_is_moving(chan))
+		return;
+
 	if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state) &&
 	    !control->poll)
 		control->final = 1;
@@ -946,7 +1008,26 @@ static inline int __l2cap_no_conn_pending(struct l2cap_chan *chan)
 	return !test_bit(CONF_CONNECT_PEND, &chan->conf_state);
 }
 
-static void l2cap_send_conn_req(struct l2cap_chan *chan)
+static bool __amp_capable(struct l2cap_chan *chan)
+{
+	struct l2cap_conn *conn = chan->conn;
+
+	if (enable_hs &&
+	    hci_amp_capable() &&
+	    chan->chan_policy == BT_CHANNEL_POLICY_AMP_PREFERRED &&
+	    conn->fixed_chan_mask & L2CAP_FC_A2MP)
+		return true;
+	else
+		return false;
+}
+
+static bool l2cap_check_efs(struct l2cap_chan *chan)
+{
+	/* Check EFS parameters */
+	return true;
+}
+
+void l2cap_send_conn_req(struct l2cap_chan *chan)
 {
 	struct l2cap_conn *conn = chan->conn;
 	struct l2cap_conn_req req;
@@ -961,6 +1042,76 @@ static void l2cap_send_conn_req(struct l2cap_chan *chan)
 	l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_REQ, sizeof(req), &req);
 }
 
+static void l2cap_send_create_chan_req(struct l2cap_chan *chan, u8 amp_id)
+{
+	struct l2cap_create_chan_req req;
+	req.scid = cpu_to_le16(chan->scid);
+	req.psm  = chan->psm;
+	req.amp_id = amp_id;
+
+	chan->ident = l2cap_get_ident(chan->conn);
+
+	l2cap_send_cmd(chan->conn, chan->ident, L2CAP_CREATE_CHAN_REQ,
+		       sizeof(req), &req);
+}
+
+static void l2cap_move_setup(struct l2cap_chan *chan)
+{
+	struct sk_buff *skb;
+
+	BT_DBG("chan %p", chan);
+
+	if (chan->mode != L2CAP_MODE_ERTM)
+		return;
+
+	__clear_retrans_timer(chan);
+	__clear_monitor_timer(chan);
+	__clear_ack_timer(chan);
+
+	chan->retry_count = 0;
+	skb_queue_walk(&chan->tx_q, skb) {
+		if (bt_cb(skb)->control.retries)
+			bt_cb(skb)->control.retries = 1;
+		else
+			break;
+	}
+
+	chan->expected_tx_seq = chan->buffer_seq;
+
+	clear_bit(CONN_REJ_ACT, &chan->conn_state);
+	clear_bit(CONN_SREJ_ACT, &chan->conn_state);
+	l2cap_seq_list_clear(&chan->retrans_list);
+	l2cap_seq_list_clear(&chan->srej_list);
+	skb_queue_purge(&chan->srej_q);
+
+	chan->tx_state = L2CAP_TX_STATE_XMIT;
+	chan->rx_state = L2CAP_RX_STATE_MOVE;
+
+	set_bit(CONN_REMOTE_BUSY, &chan->conn_state);
+}
+
+static void l2cap_move_done(struct l2cap_chan *chan)
+{
+	u8 move_role = chan->move_role;
+	BT_DBG("chan %p", chan);
+
+	chan->move_state = L2CAP_MOVE_STABLE;
+	chan->move_role = L2CAP_MOVE_ROLE_NONE;
+
+	if (chan->mode != L2CAP_MODE_ERTM)
+		return;
+
+	switch (move_role) {
+	case L2CAP_MOVE_ROLE_INITIATOR:
+		l2cap_tx(chan, NULL, NULL, L2CAP_EV_EXPLICIT_POLL);
+		chan->rx_state = L2CAP_RX_STATE_WAIT_F;
+		break;
+	case L2CAP_MOVE_ROLE_RESPONDER:
+		chan->rx_state = L2CAP_RX_STATE_WAIT_P;
+		break;
+	}
+}
+
 static void l2cap_chan_ready(struct l2cap_chan *chan)
 {
 	/* This clears all conf flags, including CONF_NOT_COMPLETE */
@@ -972,6 +1123,16 @@ static void l2cap_chan_ready(struct l2cap_chan *chan)
 	chan->ops->ready(chan);
 }
 
+static void l2cap_start_connection(struct l2cap_chan *chan)
+{
+	if (__amp_capable(chan)) {
+		BT_DBG("chan %p AMP capable: discover AMPs", chan);
+		a2mp_discover_amp(chan);
+	} else {
+		l2cap_send_conn_req(chan);
+	}
+}
+
 static void l2cap_do_start(struct l2cap_chan *chan)
 {
 	struct l2cap_conn *conn = chan->conn;
@@ -986,8 +1147,9 @@ static void l2cap_do_start(struct l2cap_chan *chan)
 			return;
 
 		if (l2cap_chan_check_security(chan) &&
-				__l2cap_no_conn_pending(chan))
-			l2cap_send_conn_req(chan);
+		    __l2cap_no_conn_pending(chan)) {
+			l2cap_start_connection(chan);
+		}
 	} else {
 		struct l2cap_info_req req;
 		req.type = __constant_cpu_to_le16(L2CAP_IT_FEAT_MASK);
@@ -997,8 +1159,8 @@ static void l2cap_do_start(struct l2cap_chan *chan)
 
 		schedule_delayed_work(&conn->info_timer, L2CAP_INFO_TIMEOUT);
 
-		l2cap_send_cmd(conn, conn->info_ident,
-					L2CAP_INFO_REQ, sizeof(req), &req);
+		l2cap_send_cmd(conn, conn->info_ident, L2CAP_INFO_REQ,
+			       sizeof(req), &req);
 	}
 }
 
@@ -1018,9 +1180,10 @@ static inline int l2cap_mode_supported(__u8 mode, __u32 feat_mask)
 	}
 }
 
-static void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *chan, int err)
+static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err)
 {
 	struct sock *sk = chan->sk;
+	struct l2cap_conn *conn = chan->conn;
 	struct l2cap_disconn_req req;
 
 	if (!conn)
@@ -1033,14 +1196,14 @@ static void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *c
 	}
 
 	if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP) {
-		__l2cap_state_change(chan, BT_DISCONN);
+		l2cap_state_change(chan, BT_DISCONN);
 		return;
 	}
 
 	req.dcid = cpu_to_le16(chan->dcid);
 	req.scid = cpu_to_le16(chan->scid);
-	l2cap_send_cmd(conn, l2cap_get_ident(conn),
-			L2CAP_DISCONN_REQ, sizeof(req), &req);
+	l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_DISCONN_REQ,
+		       sizeof(req), &req);
 
 	lock_sock(sk);
 	__l2cap_state_change(chan, BT_DISCONN);
@@ -1069,20 +1232,20 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 
 		if (chan->state == BT_CONNECT) {
 			if (!l2cap_chan_check_security(chan) ||
-					!__l2cap_no_conn_pending(chan)) {
+			    !__l2cap_no_conn_pending(chan)) {
 				l2cap_chan_unlock(chan);
 				continue;
 			}
 
 			if (!l2cap_mode_supported(chan->mode, conn->feat_mask)
-					&& test_bit(CONF_STATE2_DEVICE,
+			    && test_bit(CONF_STATE2_DEVICE,
 					&chan->conf_state)) {
 				l2cap_chan_close(chan, ECONNRESET);
 				l2cap_chan_unlock(chan);
 				continue;
 			}
 
-			l2cap_send_conn_req(chan);
+			l2cap_start_connection(chan);
 
 		} else if (chan->state == BT_CONNECT2) {
 			struct l2cap_conn_rsp rsp;
@@ -1094,11 +1257,9 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 				lock_sock(sk);
 				if (test_bit(BT_SK_DEFER_SETUP,
 					     &bt_sk(sk)->flags)) {
-					struct sock *parent = bt_sk(sk)->parent;
 					rsp.result = __constant_cpu_to_le16(L2CAP_CR_PEND);
 					rsp.status = __constant_cpu_to_le16(L2CAP_CS_AUTHOR_PEND);
-					if (parent)
-						parent->sk_data_ready(parent, 0);
+					chan->ops->defer(chan);
 
 				} else {
 					__l2cap_state_change(chan, BT_CONFIG);
@@ -1112,17 +1273,17 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 			}
 
 			l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
-							sizeof(rsp), &rsp);
+				       sizeof(rsp), &rsp);
 
 			if (test_bit(CONF_REQ_SENT, &chan->conf_state) ||
-					rsp.result != L2CAP_CR_SUCCESS) {
+			    rsp.result != L2CAP_CR_SUCCESS) {
 				l2cap_chan_unlock(chan);
 				continue;
 			}
 
 			set_bit(CONF_REQ_SENT, &chan->conf_state);
 			l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
-						l2cap_build_conf_req(chan, buf), buf);
+				       l2cap_build_conf_req(chan, buf), buf);
 			chan->num_conf_req++;
 		}
 
@@ -1204,8 +1365,6 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 	bacpy(&bt_sk(sk)->src, conn->src);
 	bacpy(&bt_sk(sk)->dst, conn->dst);
 
-	bt_accept_enqueue(parent, sk);
-
 	l2cap_chan_add(conn, chan);
 
 	l2cap_chan_ready(chan);
@@ -1270,7 +1429,7 @@ static void l2cap_conn_unreliable(struct l2cap_conn *conn, int err)
 
 	list_for_each_entry(chan, &conn->chan_l, list) {
 		if (test_bit(FLAG_FORCE_RELIABLE, &chan->flags))
-			__l2cap_chan_set_err(chan, err);
+			l2cap_chan_set_err(chan, err);
 	}
 
 	mutex_unlock(&conn->chan_lock);
@@ -1279,7 +1438,7 @@ static void l2cap_conn_unreliable(struct l2cap_conn *conn, int err)
 static void l2cap_info_timeout(struct work_struct *work)
 {
 	struct l2cap_conn *conn = container_of(work, struct l2cap_conn,
-							info_timer.work);
+					       info_timer.work);
 
 	conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
 	conn->info_ident = 0;
@@ -1333,7 +1492,7 @@ static void l2cap_conn_del(struct hci_conn *hcon, int err)
 static void security_timeout(struct work_struct *work)
 {
 	struct l2cap_conn *conn = container_of(work, struct l2cap_conn,
-						security_timer.work);
+					       security_timer.work);
 
 	BT_DBG("conn %p", conn);
 
@@ -1355,7 +1514,7 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon, u8 status)
 	if (!hchan)
 		return NULL;
 
-	conn = kzalloc(sizeof(struct l2cap_conn), GFP_ATOMIC);
+	conn = kzalloc(sizeof(struct l2cap_conn), GFP_KERNEL);
 	if (!conn) {
 		hci_chan_del(hchan);
 		return NULL;
@@ -1367,10 +1526,22 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon, u8 status)
 
 	BT_DBG("hcon %p conn %p hchan %p", hcon, conn, hchan);
 
-	if (hcon->hdev->le_mtu && hcon->type == LE_LINK)
-		conn->mtu = hcon->hdev->le_mtu;
-	else
+	switch (hcon->type) {
+	case AMP_LINK:
+		conn->mtu = hcon->hdev->block_mtu;
+		break;
+
+	case LE_LINK:
+		if (hcon->hdev->le_mtu) {
+			conn->mtu = hcon->hdev->le_mtu;
+			break;
+		}
+		/* fall through */
+
+	default:
 		conn->mtu = hcon->hdev->acl_mtu;
+		break;
+	}
 
 	conn->src = &hcon->hdev->bdaddr;
 	conn->dst = &hcon->dst;
@@ -1448,7 +1619,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 	__u8 auth_type;
 	int err;
 
-	BT_DBG("%s -> %s (type %u) psm 0x%2.2x", batostr(src), batostr(dst),
+	BT_DBG("%pMR -> %pMR (type %u) psm 0x%2.2x", src, dst,
 	       dst_type, __le16_to_cpu(psm));
 
 	hdev = hci_get_route(dst, src);
@@ -1461,7 +1632,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 
 	/* PSM must be odd and lsb of upper byte must be 0 */
 	if ((__le16_to_cpu(psm) & 0x0101) != 0x0001 && !cid &&
-					chan->chan_type != L2CAP_CHAN_RAW) {
+	    chan->chan_type != L2CAP_CHAN_RAW) {
 		err = -EINVAL;
 		goto done;
 	}
@@ -1657,6 +1828,9 @@ static void l2cap_streaming_send(struct l2cap_chan *chan,
 
 	BT_DBG("chan %p, skbs %p", chan, skbs);
 
+	if (__chan_is_moving(chan))
+		return;
+
 	skb_queue_splice_tail_init(skbs, &chan->tx_q);
 
 	while (!skb_queue_empty(&chan->tx_q)) {
@@ -1699,6 +1873,9 @@ static int l2cap_ertm_send(struct l2cap_chan *chan)
 	if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state))
 		return 0;
 
+	if (__chan_is_moving(chan))
+		return 0;
+
 	while (chan->tx_send_head &&
 	       chan->unacked_frames < chan->remote_tx_win &&
 	       chan->tx_state == L2CAP_TX_STATE_XMIT) {
@@ -1764,13 +1941,16 @@ static void l2cap_ertm_resend(struct l2cap_chan *chan)
 	if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state))
 		return;
 
+	if (__chan_is_moving(chan))
+		return;
+
 	while (chan->retrans_list.head != L2CAP_SEQ_LIST_CLEAR) {
 		seq = l2cap_seq_list_pop(&chan->retrans_list);
 
 		skb = l2cap_ertm_seq_in_queue(&chan->tx_q, seq);
 		if (!skb) {
 			BT_DBG("Error: Can't retransmit seq %d, frame missing",
-				seq);
+			       seq);
 			continue;
 		}
 
@@ -1780,7 +1960,7 @@ static void l2cap_ertm_resend(struct l2cap_chan *chan)
 		if (chan->max_tx != 0 &&
 		    bt_cb(skb)->control.retries > chan->max_tx) {
 			BT_DBG("Retry limit exceeded (%d)", chan->max_tx);
-			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+			l2cap_send_disconn_req(chan, ECONNRESET);
 			l2cap_seq_list_clear(&chan->retrans_list);
 			break;
 		}
@@ -1795,9 +1975,9 @@ static void l2cap_ertm_resend(struct l2cap_chan *chan)
 			/* Cloned sk_buffs are read-only, so we need a
 			 * writeable copy
 			 */
-			tx_skb = skb_copy(skb, GFP_ATOMIC);
+			tx_skb = skb_copy(skb, GFP_KERNEL);
 		} else {
-			tx_skb = skb_clone(skb, GFP_ATOMIC);
+			tx_skb = skb_clone(skb, GFP_KERNEL);
 		}
 
 		if (!tx_skb) {
@@ -1855,7 +2035,7 @@ static void l2cap_retransmit_all(struct l2cap_chan *chan,
 	if (chan->unacked_frames) {
 		skb_queue_walk(&chan->tx_q, skb) {
 			if (bt_cb(skb)->control.txseq == control->reqseq ||
-				skb == chan->tx_send_head)
+			    skb == chan->tx_send_head)
 				break;
 		}
 
@@ -2106,7 +2286,9 @@ static int l2cap_segment_sdu(struct l2cap_chan *chan,
 	/* PDU size is derived from the HCI MTU */
 	pdu_len = chan->conn->mtu;
 
-	pdu_len = min_t(size_t, pdu_len, L2CAP_BREDR_MAX_PAYLOAD);
+	/* Constrain PDU size for BR/EDR connections */
+	if (!chan->hs_hcon)
+		pdu_len = min_t(size_t, pdu_len, L2CAP_BREDR_MAX_PAYLOAD);
 
 	/* Adjust for largest possible L2CAP overhead. */
 	if (chan->fcs)
@@ -2156,7 +2338,7 @@ static int l2cap_segment_sdu(struct l2cap_chan *chan,
 }
 
 int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len,
-								u32 priority)
+		    u32 priority)
 {
 	struct sk_buff *skb;
 	int err;
@@ -2484,7 +2666,7 @@ static void l2cap_tx_state_wait_f(struct l2cap_chan *chan,
 			__set_monitor_timer(chan);
 			chan->retry_count++;
 		} else {
-			l2cap_send_disconn_req(chan->conn, chan, ECONNABORTED);
+			l2cap_send_disconn_req(chan, ECONNABORTED);
 		}
 		break;
 	default:
@@ -2543,7 +2725,7 @@ static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb)
 		/* Don't send frame to the socket it came from */
 		if (skb->sk == sk)
 			continue;
-		nskb = skb_clone(skb, GFP_ATOMIC);
+		nskb = skb_clone(skb, GFP_KERNEL);
 		if (!nskb)
 			continue;
 
@@ -2569,7 +2751,7 @@ static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn, u8 code,
 	len = L2CAP_HDR_SIZE + L2CAP_CMD_HDR_SIZE + dlen;
 	count = min_t(unsigned int, conn->mtu, len);
 
-	skb = bt_skb_alloc(count, GFP_ATOMIC);
+	skb = bt_skb_alloc(count, GFP_KERNEL);
 	if (!skb)
 		return NULL;
 
@@ -2599,7 +2781,7 @@ static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn, u8 code,
 	while (len) {
 		count = min_t(unsigned int, conn->mtu, len);
 
-		*frag = bt_skb_alloc(count, GFP_ATOMIC);
+		*frag = bt_skb_alloc(count, GFP_KERNEL);
 		if (!*frag)
 			goto fail;
 
@@ -2618,7 +2800,8 @@ fail:
 	return NULL;
 }
 
-static inline int l2cap_get_conf_opt(void **ptr, int *type, int *olen, unsigned long *val)
+static inline int l2cap_get_conf_opt(void **ptr, int *type, int *olen,
+				     unsigned long *val)
 {
 	struct l2cap_conf_opt *opt = *ptr;
 	int len;
@@ -2692,7 +2875,7 @@ static void l2cap_add_opt_efs(void **ptr, struct l2cap_chan *chan)
 		efs.msdu	= cpu_to_le16(chan->local_msdu);
 		efs.sdu_itime	= cpu_to_le32(chan->local_sdu_itime);
 		efs.acc_lat	= __constant_cpu_to_le32(L2CAP_DEFAULT_ACC_LAT);
-		efs.flush_to	= __constant_cpu_to_le32(L2CAP_DEFAULT_FLUSH_TO);
+		efs.flush_to	= __constant_cpu_to_le32(L2CAP_EFS_DEFAULT_FLUSH_TO);
 		break;
 
 	case L2CAP_MODE_STREAMING:
@@ -2709,7 +2892,7 @@ static void l2cap_add_opt_efs(void **ptr, struct l2cap_chan *chan)
 	}
 
 	l2cap_add_conf_opt(ptr, L2CAP_CONF_EFS, sizeof(efs),
-							(unsigned long) &efs);
+			   (unsigned long) &efs);
 }
 
 static void l2cap_ack_timeout(struct work_struct *work)
@@ -2749,6 +2932,11 @@ int l2cap_ertm_init(struct l2cap_chan *chan)
 
 	skb_queue_head_init(&chan->tx_q);
 
+	chan->local_amp_id = 0;
+	chan->move_id = 0;
+	chan->move_state = L2CAP_MOVE_STABLE;
+	chan->move_role = L2CAP_MOVE_ROLE_NONE;
+
 	if (chan->mode != L2CAP_MODE_ERTM)
 		return 0;
 
@@ -2795,16 +2983,54 @@ static inline bool __l2cap_efs_supported(struct l2cap_chan *chan)
 	return enable_hs && chan->conn->feat_mask & L2CAP_FEAT_EXT_FLOW;
 }
 
+static void __l2cap_set_ertm_timeouts(struct l2cap_chan *chan,
+				      struct l2cap_conf_rfc *rfc)
+{
+	if (chan->local_amp_id && chan->hs_hcon) {
+		u64 ertm_to = chan->hs_hcon->hdev->amp_be_flush_to;
+
+		/* Class 1 devices have must have ERTM timeouts
+		 * exceeding the Link Supervision Timeout.  The
+		 * default Link Supervision Timeout for AMP
+		 * controllers is 10 seconds.
+		 *
+		 * Class 1 devices use 0xffffffff for their
+		 * best-effort flush timeout, so the clamping logic
+		 * will result in a timeout that meets the above
+		 * requirement.  ERTM timeouts are 16-bit values, so
+		 * the maximum timeout is 65.535 seconds.
+		 */
+
+		/* Convert timeout to milliseconds and round */
+		ertm_to = DIV_ROUND_UP_ULL(ertm_to, 1000);
+
+		/* This is the recommended formula for class 2 devices
+		 * that start ERTM timers when packets are sent to the
+		 * controller.
+		 */
+		ertm_to = 3 * ertm_to + 500;
+
+		if (ertm_to > 0xffff)
+			ertm_to = 0xffff;
+
+		rfc->retrans_timeout = cpu_to_le16((u16) ertm_to);
+		rfc->monitor_timeout = rfc->retrans_timeout;
+	} else {
+		rfc->retrans_timeout = __constant_cpu_to_le16(L2CAP_DEFAULT_RETRANS_TO);
+		rfc->monitor_timeout = __constant_cpu_to_le16(L2CAP_DEFAULT_MONITOR_TO);
+	}
+}
+
 static inline void l2cap_txwin_setup(struct l2cap_chan *chan)
 {
 	if (chan->tx_win > L2CAP_DEFAULT_TX_WINDOW &&
-						__l2cap_ews_supported(chan)) {
+	    __l2cap_ews_supported(chan)) {
 		/* use extended control field */
 		set_bit(FLAG_EXT_CTRL, &chan->flags);
 		chan->tx_win_max = L2CAP_DEFAULT_EXT_WINDOW;
 	} else {
 		chan->tx_win = min_t(u16, chan->tx_win,
-						L2CAP_DEFAULT_TX_WINDOW);
+				     L2CAP_DEFAULT_TX_WINDOW);
 		chan->tx_win_max = L2CAP_DEFAULT_TX_WINDOW;
 	}
 	chan->ack_win = chan->tx_win;
@@ -2844,7 +3070,7 @@ done:
 	switch (chan->mode) {
 	case L2CAP_MODE_BASIC:
 		if (!(chan->conn->feat_mask & L2CAP_FEAT_ERTM) &&
-				!(chan->conn->feat_mask & L2CAP_FEAT_STREAMING))
+		    !(chan->conn->feat_mask & L2CAP_FEAT_STREAMING))
 			break;
 
 		rfc.mode            = L2CAP_MODE_BASIC;
@@ -2855,44 +3081,42 @@ done:
 		rfc.max_pdu_size    = 0;
 
 		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
-							(unsigned long) &rfc);
+				   (unsigned long) &rfc);
 		break;
 
 	case L2CAP_MODE_ERTM:
 		rfc.mode            = L2CAP_MODE_ERTM;
 		rfc.max_transmit    = chan->max_tx;
-		rfc.retrans_timeout = 0;
-		rfc.monitor_timeout = 0;
+
+		__l2cap_set_ertm_timeouts(chan, &rfc);
 
 		size = min_t(u16, L2CAP_DEFAULT_MAX_PDU_SIZE, chan->conn->mtu -
-						L2CAP_EXT_HDR_SIZE -
-						L2CAP_SDULEN_SIZE -
-						L2CAP_FCS_SIZE);
+			     L2CAP_EXT_HDR_SIZE - L2CAP_SDULEN_SIZE -
+			     L2CAP_FCS_SIZE);
 		rfc.max_pdu_size = cpu_to_le16(size);
 
 		l2cap_txwin_setup(chan);
 
 		rfc.txwin_size = min_t(u16, chan->tx_win,
-						L2CAP_DEFAULT_TX_WINDOW);
+				       L2CAP_DEFAULT_TX_WINDOW);
 
 		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
-							(unsigned long) &rfc);
+				   (unsigned long) &rfc);
 
 		if (test_bit(FLAG_EFS_ENABLE, &chan->flags))
 			l2cap_add_opt_efs(&ptr, chan);
 
-		if (!(chan->conn->feat_mask & L2CAP_FEAT_FCS))
-			break;
-
-		if (chan->fcs == L2CAP_FCS_NONE ||
-				test_bit(CONF_NO_FCS_RECV, &chan->conf_state)) {
-			chan->fcs = L2CAP_FCS_NONE;
-			l2cap_add_conf_opt(&ptr, L2CAP_CONF_FCS, 1, chan->fcs);
-		}
-
 		if (test_bit(FLAG_EXT_CTRL, &chan->flags))
 			l2cap_add_conf_opt(&ptr, L2CAP_CONF_EWS, 2,
-								chan->tx_win);
+					   chan->tx_win);
+
+		if (chan->conn->feat_mask & L2CAP_FEAT_FCS)
+			if (chan->fcs == L2CAP_FCS_NONE ||
+			    test_bit(CONF_RECV_NO_FCS, &chan->conf_state)) {
+				chan->fcs = L2CAP_FCS_NONE;
+				l2cap_add_conf_opt(&ptr, L2CAP_CONF_FCS, 1,
+						   chan->fcs);
+			}
 		break;
 
 	case L2CAP_MODE_STREAMING:
@@ -2904,25 +3128,23 @@ done:
 		rfc.monitor_timeout = 0;
 
 		size = min_t(u16, L2CAP_DEFAULT_MAX_PDU_SIZE, chan->conn->mtu -
-						L2CAP_EXT_HDR_SIZE -
-						L2CAP_SDULEN_SIZE -
-						L2CAP_FCS_SIZE);
+			     L2CAP_EXT_HDR_SIZE - L2CAP_SDULEN_SIZE -
+			     L2CAP_FCS_SIZE);
 		rfc.max_pdu_size = cpu_to_le16(size);
 
 		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
-							(unsigned long) &rfc);
+				   (unsigned long) &rfc);
 
 		if (test_bit(FLAG_EFS_ENABLE, &chan->flags))
 			l2cap_add_opt_efs(&ptr, chan);
 
-		if (!(chan->conn->feat_mask & L2CAP_FEAT_FCS))
-			break;
-
-		if (chan->fcs == L2CAP_FCS_NONE ||
-				test_bit(CONF_NO_FCS_RECV, &chan->conf_state)) {
-			chan->fcs = L2CAP_FCS_NONE;
-			l2cap_add_conf_opt(&ptr, L2CAP_CONF_FCS, 1, chan->fcs);
-		}
+		if (chan->conn->feat_mask & L2CAP_FEAT_FCS)
+			if (chan->fcs == L2CAP_FCS_NONE ||
+			    test_bit(CONF_RECV_NO_FCS, &chan->conf_state)) {
+				chan->fcs = L2CAP_FCS_NONE;
+				l2cap_add_conf_opt(&ptr, L2CAP_CONF_FCS, 1,
+						   chan->fcs);
+			}
 		break;
 	}
 
@@ -2974,7 +3196,7 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data)
 
 		case L2CAP_CONF_FCS:
 			if (val == L2CAP_FCS_NONE)
-				set_bit(CONF_NO_FCS_RECV, &chan->conf_state);
+				set_bit(CONF_RECV_NO_FCS, &chan->conf_state);
 			break;
 
 		case L2CAP_CONF_EFS:
@@ -3011,7 +3233,7 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data)
 	case L2CAP_MODE_ERTM:
 		if (!test_bit(CONF_STATE2_DEVICE, &chan->conf_state)) {
 			chan->mode = l2cap_select_mode(rfc.mode,
-					chan->conn->feat_mask);
+						       chan->conn->feat_mask);
 			break;
 		}
 
@@ -3036,8 +3258,8 @@ done:
 		if (chan->num_conf_rsp == 1)
 			return -ECONNREFUSED;
 
-		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
-					sizeof(rfc), (unsigned long) &rfc);
+		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
+				   (unsigned long) &rfc);
 	}
 
 	if (result == L2CAP_CONF_SUCCESS) {
@@ -3054,8 +3276,8 @@ done:
 
 		if (remote_efs) {
 			if (chan->local_stype != L2CAP_SERV_NOTRAFIC &&
-					efs.stype != L2CAP_SERV_NOTRAFIC &&
-					efs.stype != chan->local_stype) {
+			    efs.stype != L2CAP_SERV_NOTRAFIC &&
+			    efs.stype != chan->local_stype) {
 
 				result = L2CAP_CONF_UNACCEPT;
 
@@ -3063,8 +3285,8 @@ done:
 					return -ECONNREFUSED;
 
 				l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS,
-							sizeof(efs),
-							(unsigned long) &efs);
+						   sizeof(efs),
+						   (unsigned long) &efs);
 			} else {
 				/* Send PENDING Conf Rsp */
 				result = L2CAP_CONF_PENDING;
@@ -3087,51 +3309,45 @@ done:
 			chan->remote_max_tx = rfc.max_transmit;
 
 			size = min_t(u16, le16_to_cpu(rfc.max_pdu_size),
-						chan->conn->mtu -
-						L2CAP_EXT_HDR_SIZE -
-						L2CAP_SDULEN_SIZE -
-						L2CAP_FCS_SIZE);
+				     chan->conn->mtu - L2CAP_EXT_HDR_SIZE -
+				     L2CAP_SDULEN_SIZE - L2CAP_FCS_SIZE);
 			rfc.max_pdu_size = cpu_to_le16(size);
 			chan->remote_mps = size;
 
-			rfc.retrans_timeout =
-				__constant_cpu_to_le16(L2CAP_DEFAULT_RETRANS_TO);
-			rfc.monitor_timeout =
-				__constant_cpu_to_le16(L2CAP_DEFAULT_MONITOR_TO);
+			__l2cap_set_ertm_timeouts(chan, &rfc);
 
 			set_bit(CONF_MODE_DONE, &chan->conf_state);
 
 			l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
-					sizeof(rfc), (unsigned long) &rfc);
+					   sizeof(rfc), (unsigned long) &rfc);
 
 			if (test_bit(FLAG_EFS_ENABLE, &chan->flags)) {
 				chan->remote_id = efs.id;
 				chan->remote_stype = efs.stype;
 				chan->remote_msdu = le16_to_cpu(efs.msdu);
 				chan->remote_flush_to =
-						le32_to_cpu(efs.flush_to);
+					le32_to_cpu(efs.flush_to);
 				chan->remote_acc_lat =
-						le32_to_cpu(efs.acc_lat);
+					le32_to_cpu(efs.acc_lat);
 				chan->remote_sdu_itime =
 					le32_to_cpu(efs.sdu_itime);
 				l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS,
-					sizeof(efs), (unsigned long) &efs);
+						   sizeof(efs),
+						   (unsigned long) &efs);
 			}
 			break;
 
 		case L2CAP_MODE_STREAMING:
 			size = min_t(u16, le16_to_cpu(rfc.max_pdu_size),
-						chan->conn->mtu -
-						L2CAP_EXT_HDR_SIZE -
-						L2CAP_SDULEN_SIZE -
-						L2CAP_FCS_SIZE);
+				     chan->conn->mtu - L2CAP_EXT_HDR_SIZE -
+				     L2CAP_SDULEN_SIZE - L2CAP_FCS_SIZE);
 			rfc.max_pdu_size = cpu_to_le16(size);
 			chan->remote_mps = size;
 
 			set_bit(CONF_MODE_DONE, &chan->conf_state);
 
-			l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
-					sizeof(rfc), (unsigned long) &rfc);
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
+					   (unsigned long) &rfc);
 
 			break;
 
@@ -3152,7 +3368,8 @@ done:
 	return ptr - data;
 }
 
-static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, void *data, u16 *result)
+static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len,
+				void *data, u16 *result)
 {
 	struct l2cap_conf_req *req = data;
 	void *ptr = req->data;
@@ -3179,7 +3396,7 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, voi
 		case L2CAP_CONF_FLUSH_TO:
 			chan->flush_to = val;
 			l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO,
-							2, chan->flush_to);
+					   2, chan->flush_to);
 			break;
 
 		case L2CAP_CONF_RFC:
@@ -3187,13 +3404,13 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, voi
 				memcpy(&rfc, (void *)val, olen);
 
 			if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) &&
-							rfc.mode != chan->mode)
+			    rfc.mode != chan->mode)
 				return -ECONNREFUSED;
 
 			chan->fcs = 0;
 
 			l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
-					sizeof(rfc), (unsigned long) &rfc);
+					   sizeof(rfc), (unsigned long) &rfc);
 			break;
 
 		case L2CAP_CONF_EWS:
@@ -3207,12 +3424,19 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, voi
 				memcpy(&efs, (void *)val, olen);
 
 			if (chan->local_stype != L2CAP_SERV_NOTRAFIC &&
-					efs.stype != L2CAP_SERV_NOTRAFIC &&
-					efs.stype != chan->local_stype)
+			    efs.stype != L2CAP_SERV_NOTRAFIC &&
+			    efs.stype != chan->local_stype)
 				return -ECONNREFUSED;
 
-			l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS,
-					sizeof(efs), (unsigned long) &efs);
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS, sizeof(efs),
+					   (unsigned long) &efs);
+			break;
+
+		case L2CAP_CONF_FCS:
+			if (*result == L2CAP_CONF_PENDING)
+				if (val == L2CAP_FCS_NONE)
+					set_bit(CONF_RECV_NO_FCS,
+						&chan->conf_state);
 			break;
 		}
 	}
@@ -3235,10 +3459,10 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, voi
 			if (test_bit(FLAG_EFS_ENABLE, &chan->flags)) {
 				chan->local_msdu = le16_to_cpu(efs.msdu);
 				chan->local_sdu_itime =
-						le32_to_cpu(efs.sdu_itime);
+					le32_to_cpu(efs.sdu_itime);
 				chan->local_acc_lat = le32_to_cpu(efs.acc_lat);
 				chan->local_flush_to =
-						le32_to_cpu(efs.flush_to);
+					le32_to_cpu(efs.flush_to);
 			}
 			break;
 
@@ -3253,7 +3477,8 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, voi
 	return ptr - data;
 }
 
-static int l2cap_build_conf_rsp(struct l2cap_chan *chan, void *data, u16 result, u16 flags)
+static int l2cap_build_conf_rsp(struct l2cap_chan *chan, void *data,
+				u16 result, u16 flags)
 {
 	struct l2cap_conf_rsp *rsp = data;
 	void *ptr = rsp->data;
@@ -3272,19 +3497,27 @@ void __l2cap_connect_rsp_defer(struct l2cap_chan *chan)
 	struct l2cap_conn_rsp rsp;
 	struct l2cap_conn *conn = chan->conn;
 	u8 buf[128];
+	u8 rsp_code;
 
 	rsp.scid   = cpu_to_le16(chan->dcid);
 	rsp.dcid   = cpu_to_le16(chan->scid);
 	rsp.result = __constant_cpu_to_le16(L2CAP_CR_SUCCESS);
 	rsp.status = __constant_cpu_to_le16(L2CAP_CS_NO_INFO);
-	l2cap_send_cmd(conn, chan->ident,
-				L2CAP_CONN_RSP, sizeof(rsp), &rsp);
+
+	if (chan->hs_hcon)
+		rsp_code = L2CAP_CREATE_CHAN_RSP;
+	else
+		rsp_code = L2CAP_CONN_RSP;
+
+	BT_DBG("chan %p rsp_code %u", chan, rsp_code);
+
+	l2cap_send_cmd(conn, chan->ident, rsp_code, sizeof(rsp), &rsp);
 
 	if (test_and_set_bit(CONF_REQ_SENT, &chan->conf_state))
 		return;
 
 	l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
-			l2cap_build_conf_req(chan, buf), buf);
+		       l2cap_build_conf_req(chan, buf), buf);
 	chan->num_conf_req++;
 }
 
@@ -3339,7 +3572,8 @@ static void l2cap_conf_rfc_get(struct l2cap_chan *chan, void *rsp, int len)
 	}
 }
 
-static inline int l2cap_command_rej(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+static inline int l2cap_command_rej(struct l2cap_conn *conn,
+				    struct l2cap_cmd_hdr *cmd, u8 *data)
 {
 	struct l2cap_cmd_rej_unk *rej = (struct l2cap_cmd_rej_unk *) data;
 
@@ -3347,7 +3581,7 @@ static inline int l2cap_command_rej(struct l2cap_conn *conn, struct l2cap_cmd_hd
 		return 0;
 
 	if ((conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT) &&
-					cmd->ident == conn->info_ident) {
+	    cmd->ident == conn->info_ident) {
 		cancel_delayed_work(&conn->info_timer);
 
 		conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
@@ -3359,7 +3593,9 @@ static inline int l2cap_command_rej(struct l2cap_conn *conn, struct l2cap_cmd_hd
 	return 0;
 }
 
-static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
+					struct l2cap_cmd_hdr *cmd,
+					u8 *data, u8 rsp_code, u8 amp_id)
 {
 	struct l2cap_conn_req *req = (struct l2cap_conn_req *) data;
 	struct l2cap_conn_rsp rsp;
@@ -3386,7 +3622,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
 
 	/* Check if the ACL is secure enough (if not SDP) */
 	if (psm != __constant_cpu_to_le16(L2CAP_PSM_SDP) &&
-				!hci_conn_check_link_mode(conn->hcon)) {
+	    !hci_conn_check_link_mode(conn->hcon)) {
 		conn->disc_reason = HCI_ERROR_AUTH_FAILURE;
 		result = L2CAP_CR_SEC_BLOCK;
 		goto response;
@@ -3410,8 +3646,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
 	bacpy(&bt_sk(sk)->dst, conn->dst);
 	chan->psm  = psm;
 	chan->dcid = scid;
-
-	bt_accept_enqueue(parent, sk);
+	chan->local_amp_id = amp_id;
 
 	__l2cap_chan_add(conn, chan);
 
@@ -3427,10 +3662,19 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
 				__l2cap_state_change(chan, BT_CONNECT2);
 				result = L2CAP_CR_PEND;
 				status = L2CAP_CS_AUTHOR_PEND;
-				parent->sk_data_ready(parent, 0);
+				chan->ops->defer(chan);
 			} else {
-				__l2cap_state_change(chan, BT_CONFIG);
-				result = L2CAP_CR_SUCCESS;
+				/* Force pending result for AMP controllers.
+				 * The connection will succeed after the
+				 * physical link is up.
+				 */
+				if (amp_id) {
+					__l2cap_state_change(chan, BT_CONNECT2);
+					result = L2CAP_CR_PEND;
+				} else {
+					__l2cap_state_change(chan, BT_CONFIG);
+					result = L2CAP_CR_SUCCESS;
+				}
 				status = L2CAP_CS_NO_INFO;
 			}
 		} else {
@@ -3453,7 +3697,7 @@ sendresp:
 	rsp.dcid   = cpu_to_le16(dcid);
 	rsp.result = cpu_to_le16(result);
 	rsp.status = cpu_to_le16(status);
-	l2cap_send_cmd(conn, cmd->ident, L2CAP_CONN_RSP, sizeof(rsp), &rsp);
+	l2cap_send_cmd(conn, cmd->ident, rsp_code, sizeof(rsp), &rsp);
 
 	if (result == L2CAP_CR_PEND && status == L2CAP_CS_NO_INFO) {
 		struct l2cap_info_req info;
@@ -3464,23 +3708,31 @@ sendresp:
 
 		schedule_delayed_work(&conn->info_timer, L2CAP_INFO_TIMEOUT);
 
-		l2cap_send_cmd(conn, conn->info_ident,
-					L2CAP_INFO_REQ, sizeof(info), &info);
+		l2cap_send_cmd(conn, conn->info_ident, L2CAP_INFO_REQ,
+			       sizeof(info), &info);
 	}
 
 	if (chan && !test_bit(CONF_REQ_SENT, &chan->conf_state) &&
-				result == L2CAP_CR_SUCCESS) {
+	    result == L2CAP_CR_SUCCESS) {
 		u8 buf[128];
 		set_bit(CONF_REQ_SENT, &chan->conf_state);
 		l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
-					l2cap_build_conf_req(chan, buf), buf);
+			       l2cap_build_conf_req(chan, buf), buf);
 		chan->num_conf_req++;
 	}
 
+	return chan;
+}
+
+static int l2cap_connect_req(struct l2cap_conn *conn,
+			     struct l2cap_cmd_hdr *cmd, u8 *data)
+{
+	l2cap_connect(conn, cmd, data, L2CAP_CONN_RSP, 0);
 	return 0;
 }
 
-static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+static int l2cap_connect_create_rsp(struct l2cap_conn *conn,
+				    struct l2cap_cmd_hdr *cmd, u8 *data)
 {
 	struct l2cap_conn_rsp *rsp = (struct l2cap_conn_rsp *) data;
 	u16 scid, dcid, result, status;
@@ -3494,7 +3746,7 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
 	status = __le16_to_cpu(rsp->status);
 
 	BT_DBG("dcid 0x%4.4x scid 0x%4.4x result 0x%2.2x status 0x%2.2x",
-						dcid, scid, result, status);
+	       dcid, scid, result, status);
 
 	mutex_lock(&conn->chan_lock);
 
@@ -3527,7 +3779,7 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
 			break;
 
 		l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
-					l2cap_build_conf_req(chan, req), req);
+			       l2cap_build_conf_req(chan, req), req);
 		chan->num_conf_req++;
 		break;
 
@@ -3555,11 +3807,29 @@ static inline void set_default_fcs(struct l2cap_chan *chan)
 	 */
 	if (chan->mode != L2CAP_MODE_ERTM && chan->mode != L2CAP_MODE_STREAMING)
 		chan->fcs = L2CAP_FCS_NONE;
-	else if (!test_bit(CONF_NO_FCS_RECV, &chan->conf_state))
+	else if (!test_bit(CONF_RECV_NO_FCS, &chan->conf_state))
 		chan->fcs = L2CAP_FCS_CRC16;
 }
 
-static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u16 cmd_len, u8 *data)
+static void l2cap_send_efs_conf_rsp(struct l2cap_chan *chan, void *data,
+				    u8 ident, u16 flags)
+{
+	struct l2cap_conn *conn = chan->conn;
+
+	BT_DBG("conn %p chan %p ident %d flags 0x%4.4x", conn, chan, ident,
+	       flags);
+
+	clear_bit(CONF_LOC_CONF_PEND, &chan->conf_state);
+	set_bit(CONF_OUTPUT_DONE, &chan->conf_state);
+
+	l2cap_send_cmd(conn, ident, L2CAP_CONF_RSP,
+		       l2cap_build_conf_rsp(chan, data,
+					    L2CAP_CONF_SUCCESS, flags), data);
+}
+
+static inline int l2cap_config_req(struct l2cap_conn *conn,
+				   struct l2cap_cmd_hdr *cmd, u16 cmd_len,
+				   u8 *data)
 {
 	struct l2cap_conf_req *req = (struct l2cap_conf_req *) data;
 	u16 dcid, flags;
@@ -3584,7 +3854,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 		rej.dcid = cpu_to_le16(chan->dcid);
 
 		l2cap_send_cmd(conn, cmd->ident, L2CAP_COMMAND_REJ,
-				sizeof(rej), &rej);
+			       sizeof(rej), &rej);
 		goto unlock;
 	}
 
@@ -3592,8 +3862,8 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 	len = cmd_len - sizeof(*req);
 	if (len < 0 || chan->conf_len + len > sizeof(chan->conf_req)) {
 		l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
-				l2cap_build_conf_rsp(chan, rsp,
-					L2CAP_CONF_REJECT, flags), rsp);
+			       l2cap_build_conf_rsp(chan, rsp,
+			       L2CAP_CONF_REJECT, flags), rsp);
 		goto unlock;
 	}
 
@@ -3604,18 +3874,19 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 	if (flags & L2CAP_CONF_FLAG_CONTINUATION) {
 		/* Incomplete config. Send empty response. */
 		l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
-				l2cap_build_conf_rsp(chan, rsp,
-					L2CAP_CONF_SUCCESS, flags), rsp);
+			       l2cap_build_conf_rsp(chan, rsp,
+			       L2CAP_CONF_SUCCESS, flags), rsp);
 		goto unlock;
 	}
 
 	/* Complete config. */
 	len = l2cap_parse_conf_req(chan, rsp);
 	if (len < 0) {
-		l2cap_send_disconn_req(conn, chan, ECONNRESET);
+		l2cap_send_disconn_req(chan, ECONNRESET);
 		goto unlock;
 	}
 
+	chan->ident = cmd->ident;
 	l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP, len, rsp);
 	chan->num_conf_rsp++;
 
@@ -3633,7 +3904,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 			err = l2cap_ertm_init(chan);
 
 		if (err < 0)
-			l2cap_send_disconn_req(chan->conn, chan, -err);
+			l2cap_send_disconn_req(chan, -err);
 		else
 			l2cap_chan_ready(chan);
 
@@ -3643,23 +3914,22 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 	if (!test_and_set_bit(CONF_REQ_SENT, &chan->conf_state)) {
 		u8 buf[64];
 		l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
-					l2cap_build_conf_req(chan, buf), buf);
+			       l2cap_build_conf_req(chan, buf), buf);
 		chan->num_conf_req++;
 	}
 
 	/* Got Conf Rsp PENDING from remote side and asume we sent
 	   Conf Rsp PENDING in the code above */
 	if (test_bit(CONF_REM_CONF_PEND, &chan->conf_state) &&
-			test_bit(CONF_LOC_CONF_PEND, &chan->conf_state)) {
+	    test_bit(CONF_LOC_CONF_PEND, &chan->conf_state)) {
 
 		/* check compatibility */
 
-		clear_bit(CONF_LOC_CONF_PEND, &chan->conf_state);
-		set_bit(CONF_OUTPUT_DONE, &chan->conf_state);
-
-		l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
-					l2cap_build_conf_rsp(chan, rsp,
-					L2CAP_CONF_SUCCESS, flags), rsp);
+		/* Send rsp for BR/EDR channel */
+		if (!chan->hs_hcon)
+			l2cap_send_efs_conf_rsp(chan, rsp, cmd->ident, flags);
+		else
+			chan->ident = cmd->ident;
 	}
 
 unlock:
@@ -3667,7 +3937,8 @@ unlock:
 	return err;
 }
 
-static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+static inline int l2cap_config_rsp(struct l2cap_conn *conn,
+				   struct l2cap_cmd_hdr *cmd, u8 *data)
 {
 	struct l2cap_conf_rsp *rsp = (struct l2cap_conf_rsp *)data;
 	u16 scid, flags, result;
@@ -3699,20 +3970,21 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 			char buf[64];
 
 			len = l2cap_parse_conf_rsp(chan, rsp->data, len,
-								buf, &result);
+						   buf, &result);
 			if (len < 0) {
-				l2cap_send_disconn_req(conn, chan, ECONNRESET);
+				l2cap_send_disconn_req(chan, ECONNRESET);
 				goto done;
 			}
 
-			/* check compatibility */
-
-			clear_bit(CONF_LOC_CONF_PEND, &chan->conf_state);
-			set_bit(CONF_OUTPUT_DONE, &chan->conf_state);
-
-			l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
-						l2cap_build_conf_rsp(chan, buf,
-						L2CAP_CONF_SUCCESS, 0x0000), buf);
+			if (!chan->hs_hcon) {
+				l2cap_send_efs_conf_rsp(chan, buf, cmd->ident,
+							0);
+			} else {
+				if (l2cap_check_efs(chan)) {
+					amp_create_logical_link(chan);
+					chan->ident = cmd->ident;
+				}
+			}
 		}
 		goto done;
 
@@ -3721,21 +3993,21 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 			char req[64];
 
 			if (len > sizeof(req) - sizeof(struct l2cap_conf_req)) {
-				l2cap_send_disconn_req(conn, chan, ECONNRESET);
+				l2cap_send_disconn_req(chan, ECONNRESET);
 				goto done;
 			}
 
 			/* throw out any old stored conf requests */
 			result = L2CAP_CONF_SUCCESS;
 			len = l2cap_parse_conf_rsp(chan, rsp->data, len,
-								req, &result);
+						   req, &result);
 			if (len < 0) {
-				l2cap_send_disconn_req(conn, chan, ECONNRESET);
+				l2cap_send_disconn_req(chan, ECONNRESET);
 				goto done;
 			}
 
 			l2cap_send_cmd(conn, l2cap_get_ident(conn),
-						L2CAP_CONF_REQ, len, req);
+				       L2CAP_CONF_REQ, len, req);
 			chan->num_conf_req++;
 			if (result != L2CAP_CONF_SUCCESS)
 				goto done;
@@ -3746,7 +4018,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 		l2cap_chan_set_err(chan, ECONNRESET);
 
 		__set_chan_timer(chan, L2CAP_DISC_REJ_TIMEOUT);
-		l2cap_send_disconn_req(conn, chan, ECONNRESET);
+		l2cap_send_disconn_req(chan, ECONNRESET);
 		goto done;
 	}
 
@@ -3763,7 +4035,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 			err = l2cap_ertm_init(chan);
 
 		if (err < 0)
-			l2cap_send_disconn_req(chan->conn, chan, -err);
+			l2cap_send_disconn_req(chan, -err);
 		else
 			l2cap_chan_ready(chan);
 	}
@@ -3773,7 +4045,8 @@ done:
 	return err;
 }
 
-static inline int l2cap_disconnect_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+static inline int l2cap_disconnect_req(struct l2cap_conn *conn,
+				       struct l2cap_cmd_hdr *cmd, u8 *data)
 {
 	struct l2cap_disconn_req *req = (struct l2cap_disconn_req *) data;
 	struct l2cap_disconn_rsp rsp;
@@ -3819,7 +4092,8 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn, struct l2cap_cmd
 	return 0;
 }
 
-static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn,
+				       struct l2cap_cmd_hdr *cmd, u8 *data)
 {
 	struct l2cap_disconn_rsp *rsp = (struct l2cap_disconn_rsp *) data;
 	u16 dcid, scid;
@@ -3853,7 +4127,8 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, struct l2cap_cmd
 	return 0;
 }
 
-static inline int l2cap_information_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+static inline int l2cap_information_req(struct l2cap_conn *conn,
+					struct l2cap_cmd_hdr *cmd, u8 *data)
 {
 	struct l2cap_info_req *req = (struct l2cap_info_req *) data;
 	u16 type;
@@ -3870,14 +4145,14 @@ static inline int l2cap_information_req(struct l2cap_conn *conn, struct l2cap_cm
 		rsp->result = __constant_cpu_to_le16(L2CAP_IR_SUCCESS);
 		if (!disable_ertm)
 			feat_mask |= L2CAP_FEAT_ERTM | L2CAP_FEAT_STREAMING
-							 | L2CAP_FEAT_FCS;
+				| L2CAP_FEAT_FCS;
 		if (enable_hs)
 			feat_mask |= L2CAP_FEAT_EXT_FLOW
-						| L2CAP_FEAT_EXT_WINDOW;
+				| L2CAP_FEAT_EXT_WINDOW;
 
 		put_unaligned_le32(feat_mask, rsp->data);
-		l2cap_send_cmd(conn, cmd->ident,
-					L2CAP_INFO_RSP, sizeof(buf), buf);
+		l2cap_send_cmd(conn, cmd->ident, L2CAP_INFO_RSP, sizeof(buf),
+			       buf);
 	} else if (type == L2CAP_IT_FIXED_CHAN) {
 		u8 buf[12];
 		struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) buf;
@@ -3890,20 +4165,21 @@ static inline int l2cap_information_req(struct l2cap_conn *conn, struct l2cap_cm
 		rsp->type   = __constant_cpu_to_le16(L2CAP_IT_FIXED_CHAN);
 		rsp->result = __constant_cpu_to_le16(L2CAP_IR_SUCCESS);
 		memcpy(rsp->data, l2cap_fixed_chan, sizeof(l2cap_fixed_chan));
-		l2cap_send_cmd(conn, cmd->ident,
-					L2CAP_INFO_RSP, sizeof(buf), buf);
+		l2cap_send_cmd(conn, cmd->ident, L2CAP_INFO_RSP, sizeof(buf),
+			       buf);
 	} else {
 		struct l2cap_info_rsp rsp;
 		rsp.type   = cpu_to_le16(type);
 		rsp.result = __constant_cpu_to_le16(L2CAP_IR_NOTSUPP);
-		l2cap_send_cmd(conn, cmd->ident,
-					L2CAP_INFO_RSP, sizeof(rsp), &rsp);
+		l2cap_send_cmd(conn, cmd->ident, L2CAP_INFO_RSP, sizeof(rsp),
+			       &rsp);
 	}
 
 	return 0;
 }
 
-static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+static inline int l2cap_information_rsp(struct l2cap_conn *conn,
+					struct l2cap_cmd_hdr *cmd, u8 *data)
 {
 	struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) data;
 	u16 type, result;
@@ -3915,7 +4191,7 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm
 
 	/* L2CAP Info req/rsp are unbound to channels, add extra checks */
 	if (cmd->ident != conn->info_ident ||
-			conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE)
+	    conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE)
 		return 0;
 
 	cancel_delayed_work(&conn->info_timer);
@@ -3940,7 +4216,7 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm
 			conn->info_ident = l2cap_get_ident(conn);
 
 			l2cap_send_cmd(conn, conn->info_ident,
-					L2CAP_INFO_REQ, sizeof(req), &req);
+				       L2CAP_INFO_REQ, sizeof(req), &req);
 		} else {
 			conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
 			conn->info_ident = 0;
@@ -3961,12 +4237,14 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm
 	return 0;
 }
 
-static inline int l2cap_create_channel_req(struct l2cap_conn *conn,
-					struct l2cap_cmd_hdr *cmd, u16 cmd_len,
-					void *data)
+static int l2cap_create_channel_req(struct l2cap_conn *conn,
+				    struct l2cap_cmd_hdr *cmd,
+				    u16 cmd_len, void *data)
 {
 	struct l2cap_create_chan_req *req = data;
 	struct l2cap_create_chan_rsp rsp;
+	struct l2cap_chan *chan;
+	struct hci_dev *hdev;
 	u16 psm, scid;
 
 	if (cmd_len != sizeof(*req))
@@ -3980,56 +4258,119 @@ static inline int l2cap_create_channel_req(struct l2cap_conn *conn,
 
 	BT_DBG("psm 0x%2.2x, scid 0x%4.4x, amp_id %d", psm, scid, req->amp_id);
 
-	/* Placeholder: Always reject */
+	/* For controller id 0 make BR/EDR connection */
+	if (req->amp_id == HCI_BREDR_ID) {
+		l2cap_connect(conn, cmd, data, L2CAP_CREATE_CHAN_RSP,
+			      req->amp_id);
+		return 0;
+	}
+
+	/* Validate AMP controller id */
+	hdev = hci_dev_get(req->amp_id);
+	if (!hdev)
+		goto error;
+
+	if (hdev->dev_type != HCI_AMP || !test_bit(HCI_UP, &hdev->flags)) {
+		hci_dev_put(hdev);
+		goto error;
+	}
+
+	chan = l2cap_connect(conn, cmd, data, L2CAP_CREATE_CHAN_RSP,
+			     req->amp_id);
+	if (chan) {
+		struct amp_mgr *mgr = conn->hcon->amp_mgr;
+		struct hci_conn *hs_hcon;
+
+		hs_hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, conn->dst);
+		if (!hs_hcon) {
+			hci_dev_put(hdev);
+			return -EFAULT;
+		}
+
+		BT_DBG("mgr %p bredr_chan %p hs_hcon %p", mgr, chan, hs_hcon);
+
+		mgr->bredr_chan = chan;
+		chan->hs_hcon = hs_hcon;
+		chan->fcs = L2CAP_FCS_NONE;
+		conn->mtu = hdev->block_mtu;
+	}
+
+	hci_dev_put(hdev);
+
+	return 0;
+
+error:
 	rsp.dcid = 0;
 	rsp.scid = cpu_to_le16(scid);
-	rsp.result = __constant_cpu_to_le16(L2CAP_CR_NO_MEM);
+	rsp.result = __constant_cpu_to_le16(L2CAP_CR_BAD_AMP);
 	rsp.status = __constant_cpu_to_le16(L2CAP_CS_NO_INFO);
 
 	l2cap_send_cmd(conn, cmd->ident, L2CAP_CREATE_CHAN_RSP,
 		       sizeof(rsp), &rsp);
 
-	return 0;
+	return -EFAULT;
 }
 
-static inline int l2cap_create_channel_rsp(struct l2cap_conn *conn,
-					struct l2cap_cmd_hdr *cmd, void *data)
+static void l2cap_send_move_chan_req(struct l2cap_chan *chan, u8 dest_amp_id)
 {
-	BT_DBG("conn %p", conn);
+	struct l2cap_move_chan_req req;
+	u8 ident;
+
+	BT_DBG("chan %p, dest_amp_id %d", chan, dest_amp_id);
+
+	ident = l2cap_get_ident(chan->conn);
+	chan->ident = ident;
+
+	req.icid = cpu_to_le16(chan->scid);
+	req.dest_amp_id = dest_amp_id;
+
+	l2cap_send_cmd(chan->conn, ident, L2CAP_MOVE_CHAN_REQ, sizeof(req),
+		       &req);
 
-	return l2cap_connect_rsp(conn, cmd, data);
+	__set_chan_timer(chan, L2CAP_MOVE_TIMEOUT);
 }
 
-static void l2cap_send_move_chan_rsp(struct l2cap_conn *conn, u8 ident,
-				     u16 icid, u16 result)
+static void l2cap_send_move_chan_rsp(struct l2cap_chan *chan, u16 result)
 {
 	struct l2cap_move_chan_rsp rsp;
 
-	BT_DBG("icid 0x%4.4x, result 0x%4.4x", icid, result);
+	BT_DBG("chan %p, result 0x%4.4x", chan, result);
 
-	rsp.icid = cpu_to_le16(icid);
+	rsp.icid = cpu_to_le16(chan->dcid);
 	rsp.result = cpu_to_le16(result);
 
-	l2cap_send_cmd(conn, ident, L2CAP_MOVE_CHAN_RSP, sizeof(rsp), &rsp);
+	l2cap_send_cmd(chan->conn, chan->ident, L2CAP_MOVE_CHAN_RSP,
+		       sizeof(rsp), &rsp);
 }
 
-static void l2cap_send_move_chan_cfm(struct l2cap_conn *conn,
-				     struct l2cap_chan *chan,
-				     u16 icid, u16 result)
+static void l2cap_send_move_chan_cfm(struct l2cap_chan *chan, u16 result)
 {
 	struct l2cap_move_chan_cfm cfm;
-	u8 ident;
 
-	BT_DBG("icid 0x%4.4x, result 0x%4.4x", icid, result);
+	BT_DBG("chan %p, result 0x%4.4x", chan, result);
 
-	ident = l2cap_get_ident(conn);
-	if (chan)
-		chan->ident = ident;
+	chan->ident = l2cap_get_ident(chan->conn);
 
-	cfm.icid = cpu_to_le16(icid);
+	cfm.icid = cpu_to_le16(chan->scid);
 	cfm.result = cpu_to_le16(result);
 
-	l2cap_send_cmd(conn, ident, L2CAP_MOVE_CHAN_CFM, sizeof(cfm), &cfm);
+	l2cap_send_cmd(chan->conn, chan->ident, L2CAP_MOVE_CHAN_CFM,
+		       sizeof(cfm), &cfm);
+
+	__set_chan_timer(chan, L2CAP_MOVE_TIMEOUT);
+}
+
+static void l2cap_send_move_chan_cfm_icid(struct l2cap_conn *conn, u16 icid)
+{
+	struct l2cap_move_chan_cfm cfm;
+
+	BT_DBG("conn %p, icid 0x%4.4x", conn, icid);
+
+	cfm.icid = cpu_to_le16(icid);
+	cfm.result = __constant_cpu_to_le16(L2CAP_MC_UNCONFIRMED);
+
+	l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_MOVE_CHAN_CFM,
+		       sizeof(cfm), &cfm);
 }
 
 static void l2cap_send_move_chan_cfm_rsp(struct l2cap_conn *conn, u8 ident,
@@ -4043,11 +4384,289 @@ static void l2cap_send_move_chan_cfm_rsp(struct l2cap_conn *conn, u8 ident,
 	l2cap_send_cmd(conn, ident, L2CAP_MOVE_CHAN_CFM_RSP, sizeof(rsp), &rsp);
 }
 
+static void __release_logical_link(struct l2cap_chan *chan)
+{
+	chan->hs_hchan = NULL;
+	chan->hs_hcon = NULL;
+
+	/* Placeholder - release the logical link */
+}
+
+static void l2cap_logical_fail(struct l2cap_chan *chan)
+{
+	/* Logical link setup failed */
+	if (chan->state != BT_CONNECTED) {
+		/* Create channel failure, disconnect */
+		l2cap_send_disconn_req(chan, ECONNRESET);
+		return;
+	}
+
+	switch (chan->move_role) {
+	case L2CAP_MOVE_ROLE_RESPONDER:
+		l2cap_move_done(chan);
+		l2cap_send_move_chan_rsp(chan, L2CAP_MR_NOT_SUPP);
+		break;
+	case L2CAP_MOVE_ROLE_INITIATOR:
+		if (chan->move_state == L2CAP_MOVE_WAIT_LOGICAL_COMP ||
+		    chan->move_state == L2CAP_MOVE_WAIT_LOGICAL_CFM) {
+			/* Remote has only sent pending or
+			 * success responses, clean up
+			 */
+			l2cap_move_done(chan);
+		}
+
+		/* Other amp move states imply that the move
+		 * has already aborted
+		 */
+		l2cap_send_move_chan_cfm(chan, L2CAP_MC_UNCONFIRMED);
+		break;
+	}
+}
+
+static void l2cap_logical_finish_create(struct l2cap_chan *chan,
+					struct hci_chan *hchan)
+{
+	struct l2cap_conf_rsp rsp;
+
+	chan->hs_hchan = hchan;
+	chan->hs_hcon->l2cap_data = chan->conn;
+
+	l2cap_send_efs_conf_rsp(chan, &rsp, chan->ident, 0);
+
+	if (test_bit(CONF_INPUT_DONE, &chan->conf_state)) {
+		int err;
+
+		set_default_fcs(chan);
+
+		err = l2cap_ertm_init(chan);
+		if (err < 0)
+			l2cap_send_disconn_req(chan, -err);
+		else
+			l2cap_chan_ready(chan);
+	}
+}
+
+static void l2cap_logical_finish_move(struct l2cap_chan *chan,
+				      struct hci_chan *hchan)
+{
+	chan->hs_hcon = hchan->conn;
+	chan->hs_hcon->l2cap_data = chan->conn;
+
+	BT_DBG("move_state %d", chan->move_state);
+
+	switch (chan->move_state) {
+	case L2CAP_MOVE_WAIT_LOGICAL_COMP:
+		/* Move confirm will be sent after a success
+		 * response is received
+		 */
+		chan->move_state = L2CAP_MOVE_WAIT_RSP_SUCCESS;
+		break;
+	case L2CAP_MOVE_WAIT_LOGICAL_CFM:
+		if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
+			chan->move_state = L2CAP_MOVE_WAIT_LOCAL_BUSY;
+		} else if (chan->move_role == L2CAP_MOVE_ROLE_INITIATOR) {
+			chan->move_state = L2CAP_MOVE_WAIT_CONFIRM_RSP;
+			l2cap_send_move_chan_cfm(chan, L2CAP_MC_CONFIRMED);
+		} else if (chan->move_role == L2CAP_MOVE_ROLE_RESPONDER) {
+			chan->move_state = L2CAP_MOVE_WAIT_CONFIRM;
+			l2cap_send_move_chan_rsp(chan, L2CAP_MR_SUCCESS);
+		}
+		break;
+	default:
+		/* Move was not in expected state, free the channel */
+		__release_logical_link(chan);
+
+		chan->move_state = L2CAP_MOVE_STABLE;
+	}
+}
+
+/* Call with chan locked */
+void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
+		       u8 status)
+{
+	BT_DBG("chan %p, hchan %p, status %d", chan, hchan, status);
+
+	if (status) {
+		l2cap_logical_fail(chan);
+		__release_logical_link(chan);
+		return;
+	}
+
+	if (chan->state != BT_CONNECTED) {
+		/* Ignore logical link if channel is on BR/EDR */
+		if (chan->local_amp_id)
+			l2cap_logical_finish_create(chan, hchan);
+	} else {
+		l2cap_logical_finish_move(chan, hchan);
+	}
+}
+
+void l2cap_move_start(struct l2cap_chan *chan)
+{
+	BT_DBG("chan %p", chan);
+
+	if (chan->local_amp_id == HCI_BREDR_ID) {
+		if (chan->chan_policy != BT_CHANNEL_POLICY_AMP_PREFERRED)
+			return;
+		chan->move_role = L2CAP_MOVE_ROLE_INITIATOR;
+		chan->move_state = L2CAP_MOVE_WAIT_PREPARE;
+		/* Placeholder - start physical link setup */
+	} else {
+		chan->move_role = L2CAP_MOVE_ROLE_INITIATOR;
+		chan->move_state = L2CAP_MOVE_WAIT_RSP_SUCCESS;
+		chan->move_id = 0;
+		l2cap_move_setup(chan);
+		l2cap_send_move_chan_req(chan, 0);
+	}
+}
+
+static void l2cap_do_create(struct l2cap_chan *chan, int result,
+			    u8 local_amp_id, u8 remote_amp_id)
+{
+	BT_DBG("chan %p state %s %u -> %u", chan, state_to_string(chan->state),
+	       local_amp_id, remote_amp_id);
+
+	chan->fcs = L2CAP_FCS_NONE;
+
+	/* Outgoing channel on AMP */
+	if (chan->state == BT_CONNECT) {
+		if (result == L2CAP_CR_SUCCESS) {
+			chan->local_amp_id = local_amp_id;
+			l2cap_send_create_chan_req(chan, remote_amp_id);
+		} else {
+			/* Revert to BR/EDR connect */
+			l2cap_send_conn_req(chan);
+		}
+
+		return;
+	}
+
+	/* Incoming channel on AMP */
+	if (__l2cap_no_conn_pending(chan)) {
+		struct l2cap_conn_rsp rsp;
+		char buf[128];
+		rsp.scid = cpu_to_le16(chan->dcid);
+		rsp.dcid = cpu_to_le16(chan->scid);
+
+		if (result == L2CAP_CR_SUCCESS) {
+			/* Send successful response */
+			rsp.result = __constant_cpu_to_le16(L2CAP_CR_SUCCESS);
+			rsp.status = __constant_cpu_to_le16(L2CAP_CS_NO_INFO);
+		} else {
+			/* Send negative response */
+			rsp.result = __constant_cpu_to_le16(L2CAP_CR_NO_MEM);
+			rsp.status = __constant_cpu_to_le16(L2CAP_CS_NO_INFO);
+		}
+
+		l2cap_send_cmd(chan->conn, chan->ident, L2CAP_CREATE_CHAN_RSP,
+			       sizeof(rsp), &rsp);
+
+		if (result == L2CAP_CR_SUCCESS) {
+			__l2cap_state_change(chan, BT_CONFIG);
+			set_bit(CONF_REQ_SENT, &chan->conf_state);
+			l2cap_send_cmd(chan->conn, l2cap_get_ident(chan->conn),
+				       L2CAP_CONF_REQ,
+				       l2cap_build_conf_req(chan, buf), buf);
+			chan->num_conf_req++;
+		}
+	}
+}
+
+static void l2cap_do_move_initiate(struct l2cap_chan *chan, u8 local_amp_id,
+				   u8 remote_amp_id)
+{
+	l2cap_move_setup(chan);
+	chan->move_id = local_amp_id;
+	chan->move_state = L2CAP_MOVE_WAIT_RSP;
+
+	l2cap_send_move_chan_req(chan, remote_amp_id);
+}
+
+static void l2cap_do_move_respond(struct l2cap_chan *chan, int result)
+{
+	struct hci_chan *hchan = NULL;
+
+	/* Placeholder - get hci_chan for logical link */
+
+	if (hchan) {
+		if (hchan->state == BT_CONNECTED) {
+			/* Logical link is ready to go */
+			chan->hs_hcon = hchan->conn;
+			chan->hs_hcon->l2cap_data = chan->conn;
+			chan->move_state = L2CAP_MOVE_WAIT_CONFIRM;
+			l2cap_send_move_chan_rsp(chan, L2CAP_MR_SUCCESS);
+
+			l2cap_logical_cfm(chan, hchan, L2CAP_MR_SUCCESS);
+		} else {
+			/* Wait for logical link to be ready */
+			chan->move_state = L2CAP_MOVE_WAIT_LOGICAL_CFM;
+		}
+	} else {
+		/* Logical link not available */
+		l2cap_send_move_chan_rsp(chan, L2CAP_MR_NOT_ALLOWED);
+	}
+}
+
+static void l2cap_do_move_cancel(struct l2cap_chan *chan, int result)
+{
+	if (chan->move_role == L2CAP_MOVE_ROLE_RESPONDER) {
+		u8 rsp_result;
+		if (result == -EINVAL)
+			rsp_result = L2CAP_MR_BAD_ID;
+		else
+			rsp_result = L2CAP_MR_NOT_ALLOWED;
+
+		l2cap_send_move_chan_rsp(chan, rsp_result);
+	}
+
+	chan->move_role = L2CAP_MOVE_ROLE_NONE;
+	chan->move_state = L2CAP_MOVE_STABLE;
+
+	/* Restart data transmission */
+	l2cap_ertm_send(chan);
+}
+
+/* Invoke with locked chan */
+void __l2cap_physical_cfm(struct l2cap_chan *chan, int result)
+{
+	u8 local_amp_id = chan->local_amp_id;
+	u8 remote_amp_id = chan->remote_amp_id;
+
+	BT_DBG("chan %p, result %d, local_amp_id %d, remote_amp_id %d",
+	       chan, result, local_amp_id, remote_amp_id);
+
+	if (chan->state == BT_DISCONN || chan->state == BT_CLOSED) {
+		l2cap_chan_unlock(chan);
+		return;
+	}
+
+	if (chan->state != BT_CONNECTED) {
+		l2cap_do_create(chan, result, local_amp_id, remote_amp_id);
+	} else if (result != L2CAP_MR_SUCCESS) {
+		l2cap_do_move_cancel(chan, result);
+	} else {
+		switch (chan->move_role) {
+		case L2CAP_MOVE_ROLE_INITIATOR:
+			l2cap_do_move_initiate(chan, local_amp_id,
+					       remote_amp_id);
+			break;
+		case L2CAP_MOVE_ROLE_RESPONDER:
+			l2cap_do_move_respond(chan, result);
+			break;
+		default:
+			l2cap_do_move_cancel(chan, result);
+			break;
+		}
+	}
+}
+
 static inline int l2cap_move_channel_req(struct l2cap_conn *conn,
 					 struct l2cap_cmd_hdr *cmd,
 					 u16 cmd_len, void *data)
 {
 	struct l2cap_move_chan_req *req = data;
+	struct l2cap_move_chan_rsp rsp;
+	struct l2cap_chan *chan;
 	u16 icid = 0;
 	u16 result = L2CAP_MR_NOT_ALLOWED;
 
@@ -4061,15 +4680,206 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn,
 	if (!enable_hs)
 		return -EINVAL;
 
-	/* Placeholder: Always refuse */
-	l2cap_send_move_chan_rsp(conn, cmd->ident, icid, result);
+	chan = l2cap_get_chan_by_dcid(conn, icid);
+	if (!chan) {
+		rsp.icid = cpu_to_le16(icid);
+		rsp.result = __constant_cpu_to_le16(L2CAP_MR_NOT_ALLOWED);
+		l2cap_send_cmd(conn, cmd->ident, L2CAP_MOVE_CHAN_RSP,
+			       sizeof(rsp), &rsp);
+		return 0;
+	}
+
+	chan->ident = cmd->ident;
+
+	if (chan->scid < L2CAP_CID_DYN_START ||
+	    chan->chan_policy == BT_CHANNEL_POLICY_BREDR_ONLY ||
+	    (chan->mode != L2CAP_MODE_ERTM &&
+	     chan->mode != L2CAP_MODE_STREAMING)) {
+		result = L2CAP_MR_NOT_ALLOWED;
+		goto send_move_response;
+	}
+
+	if (chan->local_amp_id == req->dest_amp_id) {
+		result = L2CAP_MR_SAME_ID;
+		goto send_move_response;
+	}
+
+	if (req->dest_amp_id) {
+		struct hci_dev *hdev;
+		hdev = hci_dev_get(req->dest_amp_id);
+		if (!hdev || hdev->dev_type != HCI_AMP ||
+		    !test_bit(HCI_UP, &hdev->flags)) {
+			if (hdev)
+				hci_dev_put(hdev);
+
+			result = L2CAP_MR_BAD_ID;
+			goto send_move_response;
+		}
+		hci_dev_put(hdev);
+	}
+
+	/* Detect a move collision.  Only send a collision response
+	 * if this side has "lost", otherwise proceed with the move.
+	 * The winner has the larger bd_addr.
+	 */
+	if ((__chan_is_moving(chan) ||
+	     chan->move_role != L2CAP_MOVE_ROLE_NONE) &&
+	    bacmp(conn->src, conn->dst) > 0) {
+		result = L2CAP_MR_COLLISION;
+		goto send_move_response;
+	}
+
+	chan->move_role = L2CAP_MOVE_ROLE_RESPONDER;
+	l2cap_move_setup(chan);
+	chan->move_id = req->dest_amp_id;
+	icid = chan->dcid;
+
+	if (!req->dest_amp_id) {
+		/* Moving to BR/EDR */
+		if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
+			chan->move_state = L2CAP_MOVE_WAIT_LOCAL_BUSY;
+			result = L2CAP_MR_PEND;
+		} else {
+			chan->move_state = L2CAP_MOVE_WAIT_CONFIRM;
+			result = L2CAP_MR_SUCCESS;
+		}
+	} else {
+		chan->move_state = L2CAP_MOVE_WAIT_PREPARE;
+		/* Placeholder - uncomment when amp functions are available */
+		/*amp_accept_physical(chan, req->dest_amp_id);*/
+		result = L2CAP_MR_PEND;
+	}
+
+send_move_response:
+	l2cap_send_move_chan_rsp(chan, result);
+
+	l2cap_chan_unlock(chan);
 
 	return 0;
 }
 
-static inline int l2cap_move_channel_rsp(struct l2cap_conn *conn,
-					 struct l2cap_cmd_hdr *cmd,
-					 u16 cmd_len, void *data)
+static void l2cap_move_continue(struct l2cap_conn *conn, u16 icid, u16 result)
+{
+	struct l2cap_chan *chan;
+	struct hci_chan *hchan = NULL;
+
+	chan = l2cap_get_chan_by_scid(conn, icid);
+	if (!chan) {
+		l2cap_send_move_chan_cfm_icid(conn, icid);
+		return;
+	}
+
+	__clear_chan_timer(chan);
+	if (result == L2CAP_MR_PEND)
+		__set_chan_timer(chan, L2CAP_MOVE_ERTX_TIMEOUT);
+
+	switch (chan->move_state) {
+	case L2CAP_MOVE_WAIT_LOGICAL_COMP:
+		/* Move confirm will be sent when logical link
+		 * is complete.
+		 */
+		chan->move_state = L2CAP_MOVE_WAIT_LOGICAL_CFM;
+		break;
+	case L2CAP_MOVE_WAIT_RSP_SUCCESS:
+		if (result == L2CAP_MR_PEND) {
+			break;
+		} else if (test_bit(CONN_LOCAL_BUSY,
+				    &chan->conn_state)) {
+			chan->move_state = L2CAP_MOVE_WAIT_LOCAL_BUSY;
+		} else {
+			/* Logical link is up or moving to BR/EDR,
+			 * proceed with move
+			 */
+			chan->move_state = L2CAP_MOVE_WAIT_CONFIRM_RSP;
+			l2cap_send_move_chan_cfm(chan, L2CAP_MC_CONFIRMED);
+		}
+		break;
+	case L2CAP_MOVE_WAIT_RSP:
+		/* Moving to AMP */
+		if (result == L2CAP_MR_SUCCESS) {
+			/* Remote is ready, send confirm immediately
+			 * after logical link is ready
+			 */
+			chan->move_state = L2CAP_MOVE_WAIT_LOGICAL_CFM;
+		} else {
+			/* Both logical link and move success
+			 * are required to confirm
+			 */
+			chan->move_state = L2CAP_MOVE_WAIT_LOGICAL_COMP;
+		}
+
+		/* Placeholder - get hci_chan for logical link */
+		if (!hchan) {
+			/* Logical link not available */
+			l2cap_send_move_chan_cfm(chan, L2CAP_MC_UNCONFIRMED);
+			break;
+		}
+
+		/* If the logical link is not yet connected, do not
+		 * send confirmation.
+		 */
+		if (hchan->state != BT_CONNECTED)
+			break;
+
+		/* Logical link is already ready to go */
+
+		chan->hs_hcon = hchan->conn;
+		chan->hs_hcon->l2cap_data = chan->conn;
+
+		if (result == L2CAP_MR_SUCCESS) {
+			/* Can confirm now */
+			l2cap_send_move_chan_cfm(chan, L2CAP_MC_CONFIRMED);
+		} else {
+			/* Now only need move success
+			 * to confirm
+			 */
+			chan->move_state = L2CAP_MOVE_WAIT_RSP_SUCCESS;
+		}
+
+		l2cap_logical_cfm(chan, hchan, L2CAP_MR_SUCCESS);
+		break;
+	default:
+		/* Any other amp move state means the move failed. */
+		chan->move_id = chan->local_amp_id;
+		l2cap_move_done(chan);
+		l2cap_send_move_chan_cfm(chan, L2CAP_MC_UNCONFIRMED);
+	}
+
+	l2cap_chan_unlock(chan);
+}
+
+static void l2cap_move_fail(struct l2cap_conn *conn, u8 ident, u16 icid,
+			    u16 result)
+{
+	struct l2cap_chan *chan;
+
+	chan = l2cap_get_chan_by_ident(conn, ident);
+	if (!chan) {
+		/* Could not locate channel, icid is best guess */
+		l2cap_send_move_chan_cfm_icid(conn, icid);
+		return;
+	}
+
+	__clear_chan_timer(chan);
+
+	if (chan->move_role == L2CAP_MOVE_ROLE_INITIATOR) {
+		if (result == L2CAP_MR_COLLISION) {
+			chan->move_role = L2CAP_MOVE_ROLE_RESPONDER;
+		} else {
+			/* Cleanup - cancel move */
+			chan->move_id = chan->local_amp_id;
+			l2cap_move_done(chan);
+		}
+	}
+
+	l2cap_send_move_chan_cfm(chan, L2CAP_MC_UNCONFIRMED);
+
+	l2cap_chan_unlock(chan);
+}
+
+static int l2cap_move_channel_rsp(struct l2cap_conn *conn,
+				  struct l2cap_cmd_hdr *cmd,
+				  u16 cmd_len, void *data)
 {
 	struct l2cap_move_chan_rsp *rsp = data;
 	u16 icid, result;
@@ -4082,17 +4892,20 @@ static inline int l2cap_move_channel_rsp(struct l2cap_conn *conn,
 
 	BT_DBG("icid 0x%4.4x, result 0x%4.4x", icid, result);
 
-	/* Placeholder: Always unconfirmed */
-	l2cap_send_move_chan_cfm(conn, NULL, icid, L2CAP_MC_UNCONFIRMED);
+	if (result == L2CAP_MR_SUCCESS || result == L2CAP_MR_PEND)
+		l2cap_move_continue(conn, icid, result);
+	else
+		l2cap_move_fail(conn, cmd->ident, icid, result);
 
 	return 0;
 }
 
-static inline int l2cap_move_channel_confirm(struct l2cap_conn *conn,
-					     struct l2cap_cmd_hdr *cmd,
-					     u16 cmd_len, void *data)
+static int l2cap_move_channel_confirm(struct l2cap_conn *conn,
+				      struct l2cap_cmd_hdr *cmd,
+				      u16 cmd_len, void *data)
 {
 	struct l2cap_move_chan_cfm *cfm = data;
+	struct l2cap_chan *chan;
 	u16 icid, result;
 
 	if (cmd_len != sizeof(*cfm))
@@ -4103,8 +4916,29 @@ static inline int l2cap_move_channel_confirm(struct l2cap_conn *conn,
 
 	BT_DBG("icid 0x%4.4x, result 0x%4.4x", icid, result);
 
+	chan = l2cap_get_chan_by_dcid(conn, icid);
+	if (!chan) {
+		/* Spec requires a response even if the icid was not found */
+		l2cap_send_move_chan_cfm_rsp(conn, cmd->ident, icid);
+		return 0;
+	}
+
+	if (chan->move_state == L2CAP_MOVE_WAIT_CONFIRM) {
+		if (result == L2CAP_MC_CONFIRMED) {
+			chan->local_amp_id = chan->move_id;
+			if (!chan->local_amp_id)
+				__release_logical_link(chan);
+		} else {
+			chan->move_id = chan->local_amp_id;
+		}
+
+		l2cap_move_done(chan);
+	}
+
 	l2cap_send_move_chan_cfm_rsp(conn, cmd->ident, icid);
 
+	l2cap_chan_unlock(chan);
+
 	return 0;
 }
 
@@ -4113,6 +4947,7 @@ static inline int l2cap_move_channel_confirm_rsp(struct l2cap_conn *conn,
 						 u16 cmd_len, void *data)
 {
 	struct l2cap_move_chan_cfm_rsp *rsp = data;
+	struct l2cap_chan *chan;
 	u16 icid;
 
 	if (cmd_len != sizeof(*rsp))
@@ -4122,11 +4957,28 @@ static inline int l2cap_move_channel_confirm_rsp(struct l2cap_conn *conn,
 
 	BT_DBG("icid 0x%4.4x", icid);
 
+	chan = l2cap_get_chan_by_scid(conn, icid);
+	if (!chan)
+		return 0;
+
+	__clear_chan_timer(chan);
+
+	if (chan->move_state == L2CAP_MOVE_WAIT_CONFIRM_RSP) {
+		chan->local_amp_id = chan->move_id;
+
+		if (!chan->local_amp_id && chan->hs_hchan)
+			__release_logical_link(chan);
+
+		l2cap_move_done(chan);
+	}
+
+	l2cap_chan_unlock(chan);
+
 	return 0;
 }
 
 static inline int l2cap_check_conn_param(u16 min, u16 max, u16 latency,
-							u16 to_multiplier)
+					 u16 to_multiplier)
 {
 	u16 max_latency;
 
@@ -4147,7 +4999,8 @@ static inline int l2cap_check_conn_param(u16 min, u16 max, u16 latency,
 }
 
 static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
-					struct l2cap_cmd_hdr *cmd, u8 *data)
+					      struct l2cap_cmd_hdr *cmd,
+					      u8 *data)
 {
 	struct hci_conn *hcon = conn->hcon;
 	struct l2cap_conn_param_update_req *req;
@@ -4169,7 +5022,7 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
 	to_multiplier	= __le16_to_cpu(req->to_multiplier);
 
 	BT_DBG("min 0x%4.4x max 0x%4.4x latency: 0x%4.4x Timeout: 0x%4.4x",
-						min, max, latency, to_multiplier);
+	       min, max, latency, to_multiplier);
 
 	memset(&rsp, 0, sizeof(rsp));
 
@@ -4180,7 +5033,7 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
 		rsp.result = __constant_cpu_to_le16(L2CAP_CONN_PARAM_ACCEPTED);
 
 	l2cap_send_cmd(conn, cmd->ident, L2CAP_CONN_PARAM_UPDATE_RSP,
-							sizeof(rsp), &rsp);
+		       sizeof(rsp), &rsp);
 
 	if (!err)
 		hci_le_conn_update(hcon, min, max, latency, to_multiplier);
@@ -4189,7 +5042,8 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
 }
 
 static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn,
-			struct l2cap_cmd_hdr *cmd, u16 cmd_len, u8 *data)
+				      struct l2cap_cmd_hdr *cmd, u16 cmd_len,
+				      u8 *data)
 {
 	int err = 0;
 
@@ -4203,7 +5057,8 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn,
 		break;
 
 	case L2CAP_CONN_RSP:
-		err = l2cap_connect_rsp(conn, cmd, data);
+	case L2CAP_CREATE_CHAN_RSP:
+		err = l2cap_connect_create_rsp(conn, cmd, data);
 		break;
 
 	case L2CAP_CONF_REQ:
@@ -4241,10 +5096,6 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn,
 		err = l2cap_create_channel_req(conn, cmd, cmd_len, data);
 		break;
 
-	case L2CAP_CREATE_CHAN_RSP:
-		err = l2cap_create_channel_rsp(conn, cmd, data);
-		break;
-
 	case L2CAP_MOVE_CHAN_REQ:
 		err = l2cap_move_channel_req(conn, cmd, cmd_len, data);
 		break;
@@ -4271,7 +5122,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn,
 }
 
 static inline int l2cap_le_sig_cmd(struct l2cap_conn *conn,
-					struct l2cap_cmd_hdr *cmd, u8 *data)
+				   struct l2cap_cmd_hdr *cmd, u8 *data)
 {
 	switch (cmd->code) {
 	case L2CAP_COMMAND_REJ:
@@ -4290,7 +5141,7 @@ static inline int l2cap_le_sig_cmd(struct l2cap_conn *conn,
 }
 
 static inline void l2cap_sig_channel(struct l2cap_conn *conn,
-							struct sk_buff *skb)
+				     struct sk_buff *skb)
 {
 	u8 *data = skb->data;
 	int len = skb->len;
@@ -4307,7 +5158,8 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 
 		cmd_len = le16_to_cpu(cmd.len);
 
-		BT_DBG("code 0x%2.2x len %d id 0x%2.2x", cmd.code, cmd_len, cmd.ident);
+		BT_DBG("code 0x%2.2x len %d id 0x%2.2x", cmd.code, cmd_len,
+		       cmd.ident);
 
 		if (cmd_len > len || !cmd.ident) {
 			BT_DBG("corrupted command");
@@ -4326,7 +5178,8 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 
 			/* FIXME: Map err to a valid reason */
 			rej.reason = __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
-			l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ, sizeof(rej), &rej);
+			l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ,
+				       sizeof(rej), &rej);
 		}
 
 		data += cmd_len;
@@ -4391,8 +5244,8 @@ static void l2cap_send_i_or_rr_or_rnr(struct l2cap_chan *chan)
 	}
 }
 
-static void append_skb_frag(struct sk_buff *skb,
-			struct sk_buff *new_frag, struct sk_buff **last_frag)
+static void append_skb_frag(struct sk_buff *skb, struct sk_buff *new_frag,
+			    struct sk_buff **last_frag)
 {
 	/* skb->len reflects data in skb as well as all fragments
 	 * skb->data_len reflects only data in fragments
@@ -4492,6 +5345,12 @@ static int l2cap_reassemble_sdu(struct l2cap_chan *chan, struct sk_buff *skb,
 	return err;
 }
 
+static int l2cap_resegment(struct l2cap_chan *chan)
+{
+	/* Placeholder */
+	return 0;
+}
+
 void l2cap_chan_busy(struct l2cap_chan *chan, int busy)
 {
 	u8 event;
@@ -4546,7 +5405,7 @@ static void l2cap_handle_srej(struct l2cap_chan *chan,
 
 	if (control->reqseq == chan->next_tx_seq) {
 		BT_DBG("Invalid reqseq %d, disconnecting", control->reqseq);
-		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		l2cap_send_disconn_req(chan, ECONNRESET);
 		return;
 	}
 
@@ -4560,7 +5419,7 @@ static void l2cap_handle_srej(struct l2cap_chan *chan,
 
 	if (chan->max_tx != 0 && bt_cb(skb)->control.retries >= chan->max_tx) {
 		BT_DBG("Retry limit exceeded (%d)", chan->max_tx);
-		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		l2cap_send_disconn_req(chan, ECONNRESET);
 		return;
 	}
 
@@ -4604,7 +5463,7 @@ static void l2cap_handle_rej(struct l2cap_chan *chan,
 
 	if (control->reqseq == chan->next_tx_seq) {
 		BT_DBG("Invalid reqseq %d, disconnecting", control->reqseq);
-		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		l2cap_send_disconn_req(chan, ECONNRESET);
 		return;
 	}
 
@@ -4613,7 +5472,7 @@ static void l2cap_handle_rej(struct l2cap_chan *chan,
 	if (chan->max_tx && skb &&
 	    bt_cb(skb)->control.retries >= chan->max_tx) {
 		BT_DBG("Retry limit exceeded (%d)", chan->max_tx);
-		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		l2cap_send_disconn_req(chan, ECONNRESET);
 		return;
 	}
 
@@ -4641,7 +5500,7 @@ static u8 l2cap_classify_txseq(struct l2cap_chan *chan, u16 txseq)
 
 	if (chan->rx_state == L2CAP_RX_STATE_SREJ_SENT) {
 		if (__seq_offset(chan, txseq, chan->last_acked_seq) >=
-								chan->tx_win) {
+		    chan->tx_win) {
 			/* See notes below regarding "double poll" and
 			 * invalid packets.
 			 */
@@ -4682,8 +5541,7 @@ static u8 l2cap_classify_txseq(struct l2cap_chan *chan, u16 txseq)
 	}
 
 	if (__seq_offset(chan, txseq, chan->last_acked_seq) <
-		__seq_offset(chan, chan->expected_tx_seq,
-			     chan->last_acked_seq)){
+	    __seq_offset(chan, chan->expected_tx_seq, chan->last_acked_seq)) {
 		BT_DBG("Duplicate - expected_tx_seq later than txseq");
 		return L2CAP_TXSEQ_DUPLICATE;
 	}
@@ -4798,8 +5656,7 @@ static int l2cap_rx_state_recv(struct l2cap_chan *chan,
 			break;
 		case L2CAP_TXSEQ_INVALID:
 		default:
-			l2cap_send_disconn_req(chan->conn, chan,
-					       ECONNRESET);
+			l2cap_send_disconn_req(chan, ECONNRESET);
 			break;
 		}
 		break;
@@ -4808,8 +5665,8 @@ static int l2cap_rx_state_recv(struct l2cap_chan *chan,
 		if (control->final) {
 			clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
 
-			if (!test_and_clear_bit(CONN_REJ_ACT,
-						&chan->conn_state)) {
+			if (!test_and_clear_bit(CONN_REJ_ACT, &chan->conn_state) &&
+			    !__chan_is_moving(chan)) {
 				control->final = 0;
 				l2cap_retransmit_all(chan, control);
 			}
@@ -4932,8 +5789,7 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan,
 			break;
 		case L2CAP_TXSEQ_INVALID:
 		default:
-			l2cap_send_disconn_req(chan->conn, chan,
-					       ECONNRESET);
+			l2cap_send_disconn_req(chan, ECONNRESET);
 			break;
 		}
 		break;
@@ -4998,6 +5854,96 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan,
 	return err;
 }
 
+static int l2cap_finish_move(struct l2cap_chan *chan)
+{
+	BT_DBG("chan %p", chan);
+
+	chan->rx_state = L2CAP_RX_STATE_RECV;
+
+	if (chan->hs_hcon)
+		chan->conn->mtu = chan->hs_hcon->hdev->block_mtu;
+	else
+		chan->conn->mtu = chan->conn->hcon->hdev->acl_mtu;
+
+	return l2cap_resegment(chan);
+}
+
+static int l2cap_rx_state_wait_p(struct l2cap_chan *chan,
+				 struct l2cap_ctrl *control,
+				 struct sk_buff *skb, u8 event)
+{
+	int err;
+
+	BT_DBG("chan %p, control %p, skb %p, event %d", chan, control, skb,
+	       event);
+
+	if (!control->poll)
+		return -EPROTO;
+
+	l2cap_process_reqseq(chan, control->reqseq);
+
+	if (!skb_queue_empty(&chan->tx_q))
+		chan->tx_send_head = skb_peek(&chan->tx_q);
+	else
+		chan->tx_send_head = NULL;
+
+	/* Rewind next_tx_seq to the point expected
+	 * by the receiver.
+	 */
+	chan->next_tx_seq = control->reqseq;
+	chan->unacked_frames = 0;
+
+	err = l2cap_finish_move(chan);
+	if (err)
+		return err;
+
+	set_bit(CONN_SEND_FBIT, &chan->conn_state);
+	l2cap_send_i_or_rr_or_rnr(chan);
+
+	if (event == L2CAP_EV_RECV_IFRAME)
+		return -EPROTO;
+
+	return l2cap_rx_state_recv(chan, control, NULL, event);
+}
+
+static int l2cap_rx_state_wait_f(struct l2cap_chan *chan,
+				 struct l2cap_ctrl *control,
+				 struct sk_buff *skb, u8 event)
+{
+	int err;
+
+	if (!control->final)
+		return -EPROTO;
+
+	clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
+
+	chan->rx_state = L2CAP_RX_STATE_RECV;
+	l2cap_process_reqseq(chan, control->reqseq);
+
+	if (!skb_queue_empty(&chan->tx_q))
+		chan->tx_send_head = skb_peek(&chan->tx_q);
+	else
+		chan->tx_send_head = NULL;
+
+	/* Rewind next_tx_seq to the point expected
+	 * by the receiver.
+	 */
+	chan->next_tx_seq = control->reqseq;
+	chan->unacked_frames = 0;
+
+	if (chan->hs_hcon)
+		chan->conn->mtu = chan->hs_hcon->hdev->block_mtu;
+	else
+		chan->conn->mtu = chan->conn->hcon->hdev->acl_mtu;
+
+	err = l2cap_resegment(chan);
+
+	if (!err)
+		err = l2cap_rx_state_recv(chan, control, skb, event);
+
+	return err;
+}
+
 static bool __valid_reqseq(struct l2cap_chan *chan, u16 reqseq)
 {
 	/* Make sure reqseq is for a packet that has been sent but not acked */
@@ -5024,6 +5970,12 @@ static int l2cap_rx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
 			err = l2cap_rx_state_srej_sent(chan, control, skb,
 						       event);
 			break;
+		case L2CAP_RX_STATE_WAIT_P:
+			err = l2cap_rx_state_wait_p(chan, control, skb, event);
+			break;
+		case L2CAP_RX_STATE_WAIT_F:
+			err = l2cap_rx_state_wait_f(chan, control, skb, event);
+			break;
 		default:
 			/* shut it down */
 			break;
@@ -5032,7 +5984,7 @@ static int l2cap_rx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
 		BT_DBG("Invalid reqseq %d (next_tx_seq %d, expected_ack_seq %d",
 		       control->reqseq, chan->next_tx_seq,
 		       chan->expected_ack_seq);
-		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		l2cap_send_disconn_req(chan, ECONNRESET);
 	}
 
 	return err;
@@ -5101,7 +6053,7 @@ static int l2cap_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
 		len -= L2CAP_FCS_SIZE;
 
 	if (len > chan->mps) {
-		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		l2cap_send_disconn_req(chan, ECONNRESET);
 		goto drop;
 	}
 
@@ -5126,8 +6078,7 @@ static int l2cap_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
 		}
 
 		if (err)
-			l2cap_send_disconn_req(chan->conn, chan,
-					       ECONNRESET);
+			l2cap_send_disconn_req(chan, ECONNRESET);
 	} else {
 		const u8 rx_func_to_event[4] = {
 			L2CAP_EV_RECV_RR, L2CAP_EV_RECV_REJ,
@@ -5143,8 +6094,8 @@ static int l2cap_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
 		       control->super);
 
 		if (len != 0) {
-			BT_ERR("%d", len);
-			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+			BT_ERR("Trailing bytes: %d in sframe", len);
+			l2cap_send_disconn_req(chan, ECONNRESET);
 			goto drop;
 		}
 
@@ -5155,7 +6106,7 @@ static int l2cap_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
 
 		event = rx_func_to_event[control->super];
 		if (l2cap_rx(chan, control, skb, event))
-			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+			l2cap_send_disconn_req(chan, ECONNRESET);
 	}
 
 	return 0;
@@ -5323,7 +6274,7 @@ int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
 	int exact = 0, lm1 = 0, lm2 = 0;
 	struct l2cap_chan *c;
 
-	BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
+	BT_DBG("hdev %s, bdaddr %pMR", hdev->name, bdaddr);
 
 	/* Find listening sockets and check their link_mode */
 	read_lock(&chan_list_lock);
@@ -5353,15 +6304,15 @@ void l2cap_connect_cfm(struct hci_conn *hcon, u8 status)
 {
 	struct l2cap_conn *conn;
 
-	BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
+	BT_DBG("hcon %p bdaddr %pMR status %d", hcon, &hcon->dst, status);
 
 	if (!status) {
 		conn = l2cap_conn_add(hcon, status);
 		if (conn)
 			l2cap_conn_ready(conn);
-	} else
+	} else {
 		l2cap_conn_del(hcon, bt_to_errno(status));
-
+	}
 }
 
 int l2cap_disconn_ind(struct hci_conn *hcon)
@@ -5437,13 +6388,13 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 			continue;
 		}
 
-		if (test_bit(CONF_CONNECT_PEND, &chan->conf_state)) {
+		if (!__l2cap_no_conn_pending(chan)) {
 			l2cap_chan_unlock(chan);
 			continue;
 		}
 
 		if (!status && (chan->state == BT_CONNECTED ||
-						chan->state == BT_CONFIG)) {
+				chan->state == BT_CONFIG)) {
 			struct sock *sk = chan->sk;
 
 			clear_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags);
@@ -5456,7 +6407,7 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 
 		if (chan->state == BT_CONNECT) {
 			if (!status) {
-				l2cap_send_conn_req(chan);
+				l2cap_start_connection(chan);
 			} else {
 				__set_chan_timer(chan, L2CAP_DISC_TIMEOUT);
 			}
@@ -5470,11 +6421,9 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 			if (!status) {
 				if (test_bit(BT_SK_DEFER_SETUP,
 					     &bt_sk(sk)->flags)) {
-					struct sock *parent = bt_sk(sk)->parent;
 					res = L2CAP_CR_PEND;
 					stat = L2CAP_CS_AUTHOR_PEND;
-					if (parent)
-						parent->sk_data_ready(parent, 0);
+					chan->ops->defer(chan);
 				} else {
 					__l2cap_state_change(chan, BT_CONFIG);
 					res = L2CAP_CR_SUCCESS;
@@ -5494,7 +6443,7 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 			rsp.result = cpu_to_le16(res);
 			rsp.status = cpu_to_le16(stat);
 			l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
-							sizeof(rsp), &rsp);
+				       sizeof(rsp), &rsp);
 
 			if (!test_bit(CONF_REQ_SENT, &chan->conf_state) &&
 			    res == L2CAP_CR_SUCCESS) {
@@ -5519,6 +6468,12 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
 {
 	struct l2cap_conn *conn = hcon->l2cap_data;
+	struct l2cap_hdr *hdr;
+	int len;
+
+	/* For AMP controller do not create l2cap conn */
+	if (!conn && hcon->hdev->dev_type != HCI_BREDR)
+		goto drop;
 
 	if (!conn)
 		conn = l2cap_conn_add(hcon, 0);
@@ -5528,10 +6483,10 @@ int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
 
 	BT_DBG("conn %p len %d flags 0x%x", conn, skb->len, flags);
 
-	if (!(flags & ACL_CONT)) {
-		struct l2cap_hdr *hdr;
-		int len;
-
+	switch (flags) {
+	case ACL_START:
+	case ACL_START_NO_FLUSH:
+	case ACL_COMPLETE:
 		if (conn->rx_len) {
 			BT_ERR("Unexpected start frame (len %d)", skb->len);
 			kfree_skb(conn->rx_skb);
@@ -5560,20 +6515,22 @@ int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
 
 		if (skb->len > len) {
 			BT_ERR("Frame is too long (len %d, expected len %d)",
-				skb->len, len);
+			       skb->len, len);
 			l2cap_conn_unreliable(conn, ECOMM);
 			goto drop;
 		}
 
 		/* Allocate skb for the complete frame (with header) */
-		conn->rx_skb = bt_skb_alloc(len, GFP_ATOMIC);
+		conn->rx_skb = bt_skb_alloc(len, GFP_KERNEL);
 		if (!conn->rx_skb)
 			goto drop;
 
 		skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
-								skb->len);
+					  skb->len);
 		conn->rx_len = len - skb->len;
-	} else {
+		break;
+
+	case ACL_CONT:
 		BT_DBG("Cont: frag len %d (expecting %d)", skb->len, conn->rx_len);
 
 		if (!conn->rx_len) {
@@ -5584,7 +6541,7 @@ int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
 
 		if (skb->len > conn->rx_len) {
 			BT_ERR("Fragment is too long (len %d, expected %d)",
-					skb->len, conn->rx_len);
+			       skb->len, conn->rx_len);
 			kfree_skb(conn->rx_skb);
 			conn->rx_skb = NULL;
 			conn->rx_len = 0;
@@ -5593,7 +6550,7 @@ int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
 		}
 
 		skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
-								skb->len);
+					  skb->len);
 		conn->rx_len -= skb->len;
 
 		if (!conn->rx_len) {
@@ -5601,6 +6558,7 @@ int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
 			l2cap_recv_frame(conn, conn->rx_skb);
 			conn->rx_skb = NULL;
 		}
+		break;
 	}
 
 drop:
@@ -5617,12 +6575,11 @@ static int l2cap_debugfs_show(struct seq_file *f, void *p)
 	list_for_each_entry(c, &chan_list, global_l) {
 		struct sock *sk = c->sk;
 
-		seq_printf(f, "%s %s %d %d 0x%4.4x 0x%4.4x %d %d %d %d\n",
-					batostr(&bt_sk(sk)->src),
-					batostr(&bt_sk(sk)->dst),
-					c->state, __le16_to_cpu(c->psm),
-					c->scid, c->dcid, c->imtu, c->omtu,
-					c->sec_level, c->mode);
+		seq_printf(f, "%pMR %pMR %d %d 0x%4.4x 0x%4.4x %d %d %d %d\n",
+			   &bt_sk(sk)->src, &bt_sk(sk)->dst,
+			   c->state, __le16_to_cpu(c->psm),
+			   c->scid, c->dcid, c->imtu, c->omtu,
+			   c->sec_level, c->mode);
 	}
 
 	read_unlock(&chan_list_lock);
@@ -5653,8 +6610,8 @@ int __init l2cap_init(void)
 		return err;
 
 	if (bt_debugfs) {
-		l2cap_debugfs = debugfs_create_file("l2cap", 0444,
-					bt_debugfs, NULL, &l2cap_debugfs_fops);
+		l2cap_debugfs = debugfs_create_file("l2cap", 0444, bt_debugfs,
+						    NULL, &l2cap_debugfs_fops);
 		if (!l2cap_debugfs)
 			BT_ERR("Failed to create L2CAP debug file");
 	}
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 083f2bf..1bcfb84 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -40,7 +40,8 @@ static struct bt_sock_list l2cap_sk_list = {
 
 static const struct proto_ops l2cap_sock_ops;
 static void l2cap_sock_init(struct sock *sk, struct sock *parent);
-static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio);
+static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
+				     int proto, gfp_t prio);
 
 static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 {
@@ -106,7 +107,8 @@ done:
 	return err;
 }
 
-static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags)
+static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
+			      int alen, int flags)
 {
 	struct sock *sk = sock->sk;
 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
@@ -134,7 +136,7 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al
 	lock_sock(sk);
 
 	err = bt_sock_wait_state(sk, BT_CONNECTED,
-			sock_sndtimeo(sk, flags & O_NONBLOCK));
+				 sock_sndtimeo(sk, flags & O_NONBLOCK));
 
 	release_sock(sk);
 
@@ -185,7 +187,8 @@ done:
 	return err;
 }
 
-static int l2cap_sock_accept(struct socket *sock, struct socket *newsock, int flags)
+static int l2cap_sock_accept(struct socket *sock, struct socket *newsock,
+			     int flags)
 {
 	DECLARE_WAITQUEUE(wait, current);
 	struct sock *sk = sock->sk, *nsk;
@@ -241,7 +244,8 @@ done:
 	return err;
 }
 
-static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer)
+static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr,
+			      int *len, int peer)
 {
 	struct sockaddr_l2 *la = (struct sockaddr_l2 *) addr;
 	struct sock *sk = sock->sk;
@@ -266,7 +270,8 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr, int *l
 	return 0;
 }
 
-static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
+static int l2cap_sock_getsockopt_old(struct socket *sock, int optname,
+				     char __user *optval, int __user *optlen)
 {
 	struct sock *sk = sock->sk;
 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
@@ -309,7 +314,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
 			break;
 		case BT_SECURITY_HIGH:
 			opt = L2CAP_LM_AUTH | L2CAP_LM_ENCRYPT |
-							L2CAP_LM_SECURE;
+			      L2CAP_LM_SECURE;
 			break;
 		default:
 			opt = 0;
@@ -353,7 +358,8 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
 	return err;
 }
 
-static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
+static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname,
+				 char __user *optval, int __user *optlen)
 {
 	struct sock *sk = sock->sk;
 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
@@ -377,19 +383,20 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
 	switch (optname) {
 	case BT_SECURITY:
 		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&
-					chan->chan_type != L2CAP_CHAN_RAW) {
+		    chan->chan_type != L2CAP_CHAN_RAW) {
 			err = -EINVAL;
 			break;
 		}
 
 		memset(&sec, 0, sizeof(sec));
-		if (chan->conn)
+		if (chan->conn) {
 			sec.level = chan->conn->hcon->sec_level;
-		else
-			sec.level = chan->sec_level;
 
-		if (sk->sk_state == BT_CONNECTED)
-			sec.key_size = chan->conn->hcon->enc_key_size;
+			if (sk->sk_state == BT_CONNECTED)
+				sec.key_size = chan->conn->hcon->enc_key_size;
+		} else {
+			sec.level = chan->sec_level;
+		}
 
 		len = min_t(unsigned int, len, sizeof(sec));
 		if (copy_to_user(optval, (char *) &sec, len))
@@ -411,14 +418,14 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
 
 	case BT_FLUSHABLE:
 		if (put_user(test_bit(FLAG_FLUSHABLE, &chan->flags),
-						(u32 __user *) optval))
+			     (u32 __user *) optval))
 			err = -EFAULT;
 
 		break;
 
 	case BT_POWER:
 		if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM
-				&& sk->sk_type != SOCK_RAW) {
+		    && sk->sk_type != SOCK_RAW) {
 			err = -EINVAL;
 			break;
 		}
@@ -466,7 +473,8 @@ static bool l2cap_valid_mtu(struct l2cap_chan *chan, u16 mtu)
 	return true;
 }
 
-static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen)
+static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
+				     char __user *optval, unsigned int optlen)
 {
 	struct sock *sk = sock->sk;
 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
@@ -529,6 +537,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
 		chan->fcs  = opts.fcs;
 		chan->max_tx = opts.max_tx;
 		chan->tx_win = opts.txwin_size;
+		chan->flush_to = opts.flush_to;
 		break;
 
 	case L2CAP_LM:
@@ -564,7 +573,8 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
 	return err;
 }
 
-static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
+static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
+				 char __user *optval, unsigned int optlen)
 {
 	struct sock *sk = sock->sk;
 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
@@ -587,7 +597,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
 	switch (optname) {
 	case BT_SECURITY:
 		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&
-					chan->chan_type != L2CAP_CHAN_RAW) {
+		    chan->chan_type != L2CAP_CHAN_RAW) {
 			err = -EINVAL;
 			break;
 		}
@@ -601,7 +611,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
 		}
 
 		if (sec.level < BT_SECURITY_LOW ||
-					sec.level > BT_SECURITY_HIGH) {
+		    sec.level > BT_SECURITY_HIGH) {
 			err = -EINVAL;
 			break;
 		}
@@ -627,7 +637,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
 
 		/* or for ACL link */
 		} else if ((sk->sk_state == BT_CONNECT2 &&
-			   test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) ||
+			    test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) ||
 			   sk->sk_state == BT_CONNECTED) {
 			if (!l2cap_chan_check_security(chan))
 				set_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags);
@@ -684,7 +694,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
 
 	case BT_POWER:
 		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&
-					chan->chan_type != L2CAP_CHAN_RAW) {
+		    chan->chan_type != L2CAP_CHAN_RAW) {
 			err = -EINVAL;
 			break;
 		}
@@ -720,12 +730,17 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
 		}
 
 		if (chan->mode != L2CAP_MODE_ERTM &&
-				chan->mode != L2CAP_MODE_STREAMING) {
+		    chan->mode != L2CAP_MODE_STREAMING) {
 			err = -EOPNOTSUPP;
 			break;
 		}
 
 		chan->chan_policy = (u8) opt;
+
+		if (sk->sk_state == BT_CONNECTED &&
+		    chan->move_role == L2CAP_MOVE_ROLE_NONE)
+			l2cap_move_start(chan);
+
 		break;
 
 	default:
@@ -737,7 +752,8 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
 	return err;
 }
 
-static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len)
+static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
+			      struct msghdr *msg, size_t len)
 {
 	struct sock *sk = sock->sk;
 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
@@ -762,7 +778,8 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct ms
 	return err;
 }
 
-static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags)
+static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
+			      struct msghdr *msg, size_t len, int flags)
 {
 	struct sock *sk = sock->sk;
 	struct l2cap_pinfo *pi = l2cap_pi(sk);
@@ -866,7 +883,7 @@ static int l2cap_sock_shutdown(struct socket *sock, int how)
 
 		if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime)
 			err = bt_sock_wait_state(sk, BT_CLOSED,
-							sk->sk_lingertime);
+						 sk->sk_lingertime);
 	}
 
 	if (!err && sk->sk_err)
@@ -930,7 +947,7 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan)
 	}
 
 	sk = l2cap_sock_alloc(sock_net(parent), NULL, BTPROTO_L2CAP,
-								GFP_ATOMIC);
+			      GFP_ATOMIC);
 	if (!sk)
 		return NULL;
 
@@ -938,6 +955,8 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan)
 
 	l2cap_sock_init(sk, parent);
 
+	bt_accept_enqueue(parent, sk);
+
 	return l2cap_pi(sk)->chan;
 }
 
@@ -1068,6 +1087,15 @@ static void l2cap_sock_ready_cb(struct l2cap_chan *chan)
 	release_sock(sk);
 }
 
+static void l2cap_sock_defer_cb(struct l2cap_chan *chan)
+{
+	struct sock *sk = chan->data;
+	struct sock *parent = bt_sk(sk)->parent;
+
+	if (parent)
+		parent->sk_data_ready(parent, 0);
+}
+
 static struct l2cap_ops l2cap_chan_ops = {
 	.name		= "L2CAP Socket Interface",
 	.new_connection	= l2cap_sock_new_connection_cb,
@@ -1076,6 +1104,7 @@ static struct l2cap_ops l2cap_chan_ops = {
 	.teardown	= l2cap_sock_teardown_cb,
 	.state_change	= l2cap_sock_state_change_cb,
 	.ready		= l2cap_sock_ready_cb,
+	.defer		= l2cap_sock_defer_cb,
 	.alloc_skb	= l2cap_sock_alloc_skb_cb,
 };
 
@@ -1083,7 +1112,8 @@ static void l2cap_sock_destruct(struct sock *sk)
 {
 	BT_DBG("sk %p", sk);
 
-	l2cap_chan_put(l2cap_pi(sk)->chan);
+	if (l2cap_pi(sk)->chan)
+		l2cap_chan_put(l2cap_pi(sk)->chan);
 	if (l2cap_pi(sk)->rx_busy_skb) {
 		kfree_skb(l2cap_pi(sk)->rx_busy_skb);
 		l2cap_pi(sk)->rx_busy_skb = NULL;
@@ -1159,7 +1189,8 @@ static struct proto l2cap_proto = {
 	.obj_size	= sizeof(struct l2cap_pinfo)
 };
 
-static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio)
+static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
+				     int proto, gfp_t prio)
 {
 	struct sock *sk;
 	struct l2cap_chan *chan;
@@ -1204,7 +1235,7 @@ static int l2cap_sock_create(struct net *net, struct socket *sock, int protocol,
 	sock->state = SS_UNCONNECTED;
 
 	if (sock->type != SOCK_SEQPACKET && sock->type != SOCK_STREAM &&
-			sock->type != SOCK_DGRAM && sock->type != SOCK_RAW)
+	    sock->type != SOCK_DGRAM && sock->type != SOCK_RAW)
 		return -ESOCKTNOSUPPORT;
 
 	if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW))
@@ -1261,7 +1292,8 @@ int __init l2cap_init_sockets(void)
 		goto error;
 	}
 
-	err = bt_procfs_init(THIS_MODULE, &init_net, "l2cap", &l2cap_sk_list, NULL);
+	err = bt_procfs_init(THIS_MODULE, &init_net, "l2cap", &l2cap_sk_list,
+			     NULL);
 	if (err < 0) {
 		BT_ERR("Failed to create L2CAP proc file");
 		bt_sock_unregister(BTPROTO_L2CAP);
diff --git a/net/bluetooth/lib.c b/net/bluetooth/lib.c
index e1c9752..b3fbc73 100644
--- a/net/bluetooth/lib.c
+++ b/net/bluetooth/lib.c
@@ -41,20 +41,6 @@ void baswap(bdaddr_t *dst, bdaddr_t *src)
 }
 EXPORT_SYMBOL(baswap);
 
-char *batostr(bdaddr_t *ba)
-{
-	static char str[2][18];
-	static int i = 1;
-
-	i ^= 1;
-	sprintf(str[i], "%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X",
-		ba->b[5], ba->b[4], ba->b[3],
-		ba->b[2], ba->b[1], ba->b[0]);
-
-	return str[i];
-}
-EXPORT_SYMBOL(batostr);
-
 /* Bluetooth error codes to Unix errno mapping */
 int bt_to_errno(__u16 code)
 {
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 91de423..f559b96 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -222,7 +222,7 @@ static int cmd_status(struct sock *sk, u16 index, u16 cmd, u8 status)
 
 	hdr = (void *) skb_put(skb, sizeof(*hdr));
 
-	hdr->opcode = cpu_to_le16(MGMT_EV_CMD_STATUS);
+	hdr->opcode = __constant_cpu_to_le16(MGMT_EV_CMD_STATUS);
 	hdr->index = cpu_to_le16(index);
 	hdr->len = cpu_to_le16(sizeof(*ev));
 
@@ -253,7 +253,7 @@ static int cmd_complete(struct sock *sk, u16 index, u16 cmd, u8 status,
 
 	hdr = (void *) skb_put(skb, sizeof(*hdr));
 
-	hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
+	hdr->opcode = __constant_cpu_to_le16(MGMT_EV_CMD_COMPLETE);
 	hdr->index = cpu_to_le16(index);
 	hdr->len = cpu_to_le16(sizeof(*ev) + rp_len);
 
@@ -377,15 +377,15 @@ static u32 get_supported_settings(struct hci_dev *hdev)
 	u32 settings = 0;
 
 	settings |= MGMT_SETTING_POWERED;
-	settings |= MGMT_SETTING_CONNECTABLE;
-	settings |= MGMT_SETTING_FAST_CONNECTABLE;
-	settings |= MGMT_SETTING_DISCOVERABLE;
 	settings |= MGMT_SETTING_PAIRABLE;
 
 	if (lmp_ssp_capable(hdev))
 		settings |= MGMT_SETTING_SSP;
 
 	if (lmp_bredr_capable(hdev)) {
+		settings |= MGMT_SETTING_CONNECTABLE;
+		settings |= MGMT_SETTING_FAST_CONNECTABLE;
+		settings |= MGMT_SETTING_DISCOVERABLE;
 		settings |= MGMT_SETTING_BREDR;
 		settings |= MGMT_SETTING_LINK_SECURITY;
 	}
@@ -485,7 +485,7 @@ static void create_eir(struct hci_dev *hdev, u8 *data)
 		ptr += (name_len + 2);
 	}
 
-	if (hdev->inq_tx_power) {
+	if (hdev->inq_tx_power != HCI_TX_POWER_INVALID) {
 		ptr[0] = 2;
 		ptr[1] = EIR_TX_POWER;
 		ptr[2] = (u8) hdev->inq_tx_power;
@@ -566,7 +566,7 @@ static int update_eir(struct hci_dev *hdev)
 	if (!hdev_is_powered(hdev))
 		return 0;
 
-	if (!(hdev->features[6] & LMP_EXT_INQ))
+	if (!lmp_ext_inq_capable(hdev))
 		return 0;
 
 	if (!test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
@@ -833,7 +833,7 @@ static int mgmt_event(u16 event, struct hci_dev *hdev, void *data, u16 data_len,
 	if (hdev)
 		hdr->index = cpu_to_le16(hdev->id);
 	else
-		hdr->index = cpu_to_le16(MGMT_INDEX_NONE);
+		hdr->index = __constant_cpu_to_le16(MGMT_INDEX_NONE);
 	hdr->len = cpu_to_le16(data_len);
 
 	if (data)
@@ -868,6 +868,10 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	BT_DBG("request for %s", hdev->name);
 
+	if (!lmp_bredr_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
+				 MGMT_STATUS_NOT_SUPPORTED);
+
 	timeout = __le16_to_cpu(cp->timeout);
 	if (!cp->val && timeout > 0)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
@@ -963,6 +967,10 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	BT_DBG("request for %s", hdev->name);
 
+	if (!lmp_bredr_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
 	hci_dev_lock(hdev);
 
 	if (!hdev_is_powered(hdev)) {
@@ -1061,6 +1069,10 @@ static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	BT_DBG("request for %s", hdev->name);
 
+	if (!lmp_bredr_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
 	hci_dev_lock(hdev);
 
 	if (!hdev_is_powered(hdev)) {
@@ -1214,7 +1226,7 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 	}
 
 	val = !!cp->val;
-	enabled = !!(hdev->host_features[0] & LMP_HOST_LE);
+	enabled = lmp_host_le_capable(hdev);
 
 	if (!hdev_is_powered(hdev) || val == enabled) {
 		bool changed = false;
@@ -1250,7 +1262,7 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	if (val) {
 		hci_cp.le = val;
-		hci_cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR);
+		hci_cp.simul = lmp_le_br_capable(hdev);
 	}
 
 	err = hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
@@ -2596,6 +2608,10 @@ static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
 
 	BT_DBG("%s", hdev->name);
 
+	if (!lmp_bredr_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
 	if (!hdev_is_powered(hdev))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
 				  MGMT_STATUS_NOT_POWERED);
@@ -2873,6 +2889,21 @@ static void settings_rsp(struct pending_cmd *cmd, void *data)
 	mgmt_pending_free(cmd);
 }
 
+static int set_bredr_scan(struct hci_dev *hdev)
+{
+	u8 scan = 0;
+
+	if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
+		scan |= SCAN_PAGE;
+	if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
+		scan |= SCAN_INQUIRY;
+
+	if (!scan)
+		return 0;
+
+	return hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+}
+
 int mgmt_powered(struct hci_dev *hdev, u8 powered)
 {
 	struct cmd_lookup match = { NULL, hdev };
@@ -2884,17 +2915,8 @@ int mgmt_powered(struct hci_dev *hdev, u8 powered)
 	mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
 
 	if (powered) {
-		u8 scan = 0;
-
-		if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
-			scan |= SCAN_PAGE;
-		if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
-			scan |= SCAN_INQUIRY;
-
-		if (scan)
-			hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
-
-		if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
+		if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
+		    !lmp_host_ssp_capable(hdev)) {
 			u8 ssp = 1;
 
 			hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, 1, &ssp);
@@ -2904,15 +2926,24 @@ int mgmt_powered(struct hci_dev *hdev, u8 powered)
 			struct hci_cp_write_le_host_supported cp;
 
 			cp.le = 1;
-			cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR);
-
-			hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED,
-				     sizeof(cp), &cp);
+			cp.simul = lmp_le_br_capable(hdev);
+
+			/* Check first if we already have the right
+			 * host state (host features set)
+			 */
+			if (cp.le != lmp_host_le_capable(hdev) ||
+			    cp.simul != lmp_host_le_br_capable(hdev))
+				hci_send_cmd(hdev,
+					     HCI_OP_WRITE_LE_HOST_SUPPORTED,
+					     sizeof(cp), &cp);
 		}
 
-		update_class(hdev);
-		update_name(hdev, hdev->dev_name);
-		update_eir(hdev);
+		if (lmp_bredr_capable(hdev)) {
+			set_bredr_scan(hdev);
+			update_class(hdev);
+			update_name(hdev, hdev->dev_name);
+			update_eir(hdev);
+		}
 	} else {
 		u8 status = MGMT_STATUS_NOT_POWERED;
 		mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status);
@@ -3127,6 +3158,9 @@ int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
 	struct pending_cmd *cmd;
 	int err;
 
+	mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
+			     hdev);
+
 	cmd = mgmt_pending_find(MGMT_OP_DISCONNECT, hdev);
 	if (!cmd)
 		return -ENOENT;
@@ -3139,8 +3173,6 @@ int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
 
 	mgmt_pending_remove(cmd);
 
-	mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
-			     hdev);
 	return err;
 }
 
@@ -3360,7 +3392,7 @@ static int clear_eir(struct hci_dev *hdev)
 {
 	struct hci_cp_write_eir cp;
 
-	if (!(hdev->features[6] & LMP_EXT_INQ))
+	if (!lmp_ext_inq_capable(hdev))
 		return 0;
 
 	memset(hdev->eir, 0, sizeof(hdev->eir));
@@ -3492,7 +3524,12 @@ send_event:
 		err = mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev,
 				 sizeof(ev), cmd ? cmd->sk : NULL);
 
-	update_eir(hdev);
+	/* EIR is taken care of separately when powering on the
+	 * adapter so only update them here if this is a name change
+	 * unrelated to power on.
+	 */
+	if (!test_bit(HCI_INIT, &hdev->flags))
+		update_eir(hdev);
 
 failed:
 	if (cmd)
@@ -3587,9 +3624,9 @@ int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 	ev->addr.type = link_to_bdaddr(link_type, addr_type);
 	ev->rssi = rssi;
 	if (cfm_name)
-		ev->flags |= cpu_to_le32(MGMT_DEV_FOUND_CONFIRM_NAME);
+		ev->flags |= __constant_cpu_to_le32(MGMT_DEV_FOUND_CONFIRM_NAME);
 	if (!ssp)
-		ev->flags |= cpu_to_le32(MGMT_DEV_FOUND_LEGACY_PAIRING);
+		ev->flags |= __constant_cpu_to_le32(MGMT_DEV_FOUND_LEGACY_PAIRING);
 
 	if (eir_len > 0)
 		memcpy(ev->eir, eir, eir_len);
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index c75107e..201fdf7 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -377,8 +377,8 @@ static int __rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst,
 	int err = 0;
 	u8 dlci;
 
-	BT_DBG("dlc %p state %ld %s %s channel %d",
-			d, d->state, batostr(src), batostr(dst), channel);
+	BT_DBG("dlc %p state %ld %pMR -> %pMR channel %d",
+	       d, d->state, src, dst, channel);
 
 	if (channel < 1 || channel > 30)
 		return -EINVAL;
@@ -676,7 +676,7 @@ static struct rfcomm_session *rfcomm_session_create(bdaddr_t *src,
 	struct socket *sock;
 	struct sock *sk;
 
-	BT_DBG("%s %s", batostr(src), batostr(dst));
+	BT_DBG("%pMR -> %pMR", src, dst);
 
 	*err = rfcomm_l2sock_create(&sock);
 	if (*err < 0)
@@ -709,7 +709,7 @@ static struct rfcomm_session *rfcomm_session_create(bdaddr_t *src,
 
 	bacpy(&addr.l2_bdaddr, dst);
 	addr.l2_family = AF_BLUETOOTH;
-	addr.l2_psm    = cpu_to_le16(RFCOMM_PSM);
+	addr.l2_psm    = __constant_cpu_to_le16(RFCOMM_PSM);
 	addr.l2_cid    = 0;
 	*err = kernel_connect(sock, (struct sockaddr *) &addr, sizeof(addr), O_NONBLOCK);
 	if (*err == 0 || *err == -EINPROGRESS)
@@ -1987,7 +1987,7 @@ static int rfcomm_add_listener(bdaddr_t *ba)
 	/* Bind socket */
 	bacpy(&addr.l2_bdaddr, ba);
 	addr.l2_family = AF_BLUETOOTH;
-	addr.l2_psm    = cpu_to_le16(RFCOMM_PSM);
+	addr.l2_psm    = __constant_cpu_to_le16(RFCOMM_PSM);
 	addr.l2_cid    = 0;
 	err = kernel_bind(sock, (struct sockaddr *) &addr, sizeof(addr));
 	if (err < 0) {
@@ -2125,11 +2125,10 @@ static int rfcomm_dlc_debugfs_show(struct seq_file *f, void *x)
 		list_for_each_entry(d, &s->dlcs, list) {
 			struct sock *sk = s->sock->sk;
 
-			seq_printf(f, "%s %s %ld %d %d %d %d\n",
-						batostr(&bt_sk(sk)->src),
-						batostr(&bt_sk(sk)->dst),
-						d->state, d->dlci, d->mtu,
-						d->rx_credits, d->tx_credits);
+			seq_printf(f, "%pMR %pMR %ld %d %d %d %d\n",
+				   &bt_sk(sk)->src, &bt_sk(sk)->dst,
+				   d->state, d->dlci, d->mtu,
+				   d->rx_credits, d->tx_credits);
 		}
 	}
 
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index b3226f3..ce3f665 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -334,7 +334,7 @@ static int rfcomm_sock_bind(struct socket *sock, struct sockaddr *addr, int addr
 	struct sock *sk = sock->sk;
 	int err = 0;
 
-	BT_DBG("sk %p %s", sk, batostr(&sa->rc_bdaddr));
+	BT_DBG("sk %p %pMR", sk, &sa->rc_bdaddr);
 
 	if (!addr || addr->sa_family != AF_BLUETOOTH)
 		return -EINVAL;
@@ -467,7 +467,7 @@ static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int f
 	long timeo;
 	int err = 0;
 
-	lock_sock(sk);
+	lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
 
 	if (sk->sk_type != SOCK_STREAM) {
 		err = -EINVAL;
@@ -504,7 +504,7 @@ static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int f
 
 		release_sock(sk);
 		timeo = schedule_timeout(timeo);
-		lock_sock(sk);
+		lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
 	}
 	__set_current_state(TASK_RUNNING);
 	remove_wait_queue(sk_sleep(sk), &wait);
@@ -975,10 +975,9 @@ static int rfcomm_sock_debugfs_show(struct seq_file *f, void *p)
 	read_lock(&rfcomm_sk_list.lock);
 
 	sk_for_each(sk, node, &rfcomm_sk_list.head) {
-		seq_printf(f, "%s %s %d %d\n",
-				batostr(&bt_sk(sk)->src),
-				batostr(&bt_sk(sk)->dst),
-				sk->sk_state, rfcomm_pi(sk)->channel);
+		seq_printf(f, "%pMR %pMR %d %d\n",
+			   &bt_sk(sk)->src, &bt_sk(sk)->dst,
+			   sk->sk_state, rfcomm_pi(sk)->channel);
 	}
 
 	read_unlock(&rfcomm_sk_list.lock);
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index ccc2487..bd6fd0f 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -166,7 +166,7 @@ static struct device *rfcomm_get_device(struct rfcomm_dev *dev)
 static ssize_t show_address(struct device *tty_dev, struct device_attribute *attr, char *buf)
 {
 	struct rfcomm_dev *dev = dev_get_drvdata(tty_dev);
-	return sprintf(buf, "%s\n", batostr(&dev->dst));
+	return sprintf(buf, "%pMR\n", &dev->dst);
 }
 
 static ssize_t show_channel(struct device *tty_dev, struct device_attribute *attr, char *buf)
@@ -663,8 +663,8 @@ static int rfcomm_tty_open(struct tty_struct *tty, struct file *filp)
 	if (!dev)
 		return -ENODEV;
 
-	BT_DBG("dev %p dst %s channel %d opened %d", dev, batostr(&dev->dst),
-				dev->channel, dev->port.count);
+	BT_DBG("dev %p dst %pMR channel %d opened %d", dev, &dev->dst,
+	       dev->channel, dev->port.count);
 
 	spin_lock_irqsave(&dev->port.lock, flags);
 	if (++dev->port.count > 1) {
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index dc42b91..531a93d 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -131,15 +131,6 @@ static int sco_conn_del(struct hci_conn *hcon, int err)
 		sco_sock_clear_timer(sk);
 		sco_chan_del(sk, err);
 		bh_unlock_sock(sk);
-
-		sco_conn_lock(conn);
-		conn->sk = NULL;
-		sco_pi(sk)->conn = NULL;
-		sco_conn_unlock(conn);
-
-		if (conn->hcon)
-			hci_conn_put(conn->hcon);
-
 		sco_sock_kill(sk);
 	}
 
@@ -172,7 +163,7 @@ static int sco_connect(struct sock *sk)
 	struct hci_dev  *hdev;
 	int err, type;
 
-	BT_DBG("%s -> %s", batostr(src), batostr(dst));
+	BT_DBG("%pMR -> %pMR", src, dst);
 
 	hdev = hci_get_route(dst, src);
 	if (!hdev)
@@ -397,6 +388,7 @@ static void sco_sock_init(struct sock *sk, struct sock *parent)
 
 	if (parent) {
 		sk->sk_type = parent->sk_type;
+		bt_sk(sk)->flags = bt_sk(parent)->flags;
 		security_sk_clone(parent, sk);
 	}
 }
@@ -460,7 +452,7 @@ static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_le
 	struct sock *sk = sock->sk;
 	int err = 0;
 
-	BT_DBG("sk %p %s", sk, batostr(&sa->sco_bdaddr));
+	BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr);
 
 	if (!addr || addr->sa_family != AF_BLUETOOTH)
 		return -EINVAL;
@@ -662,16 +654,57 @@ static int sco_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 	return err;
 }
 
+static int sco_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
+			    struct msghdr *msg, size_t len, int flags)
+{
+	struct sock *sk = sock->sk;
+	struct sco_pinfo *pi = sco_pi(sk);
+
+	lock_sock(sk);
+
+	if (sk->sk_state == BT_CONNECT2 &&
+	    test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) {
+		hci_conn_accept(pi->conn->hcon, 0);
+		sk->sk_state = BT_CONFIG;
+
+		release_sock(sk);
+		return 0;
+	}
+
+	release_sock(sk);
+
+	return bt_sock_recvmsg(iocb, sock, msg, len, flags);
+}
+
 static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
 {
 	struct sock *sk = sock->sk;
 	int err = 0;
+	u32 opt;
 
 	BT_DBG("sk %p", sk);
 
 	lock_sock(sk);
 
 	switch (optname) {
+
+	case BT_DEFER_SETUP:
+		if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
+			err = -EINVAL;
+			break;
+		}
+
+		if (get_user(opt, (u32 __user *) optval)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (opt)
+			set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
+		else
+			clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
+		break;
+
 	default:
 		err = -ENOPROTOOPT;
 		break;
@@ -753,6 +786,19 @@ static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char
 	lock_sock(sk);
 
 	switch (optname) {
+
+	case BT_DEFER_SETUP:
+		if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
+			err = -EINVAL;
+			break;
+		}
+
+		if (put_user(test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags),
+			     (u32 __user *) optval))
+			err = -EFAULT;
+
+		break;
+
 	default:
 		err = -ENOPROTOOPT;
 		break;
@@ -830,6 +876,16 @@ static void sco_chan_del(struct sock *sk, int err)
 
 	BT_DBG("sk %p, conn %p, err %d", sk, conn, err);
 
+	if (conn) {
+		sco_conn_lock(conn);
+		conn->sk = NULL;
+		sco_pi(sk)->conn = NULL;
+		sco_conn_unlock(conn);
+
+		if (conn->hcon)
+			hci_conn_put(conn->hcon);
+	}
+
 	sk->sk_state = BT_CLOSED;
 	sk->sk_err   = err;
 	sk->sk_state_change(sk);
@@ -874,7 +930,10 @@ static void sco_conn_ready(struct sco_conn *conn)
 		hci_conn_hold(conn->hcon);
 		__sco_chan_add(conn, sk, parent);
 
-		sk->sk_state = BT_CONNECTED;
+		if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(parent)->flags))
+			sk->sk_state = BT_CONNECT2;
+		else
+			sk->sk_state = BT_CONNECTED;
 
 		/* Wake up parent */
 		parent->sk_data_ready(parent, 1);
@@ -887,13 +946,13 @@ done:
 }
 
 /* ----- SCO interface with lower layer (HCI) ----- */
-int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
+int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
 {
 	struct sock *sk;
 	struct hlist_node *node;
 	int lm = 0;
 
-	BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
+	BT_DBG("hdev %s, bdaddr %pMR", hdev->name, bdaddr);
 
 	/* Find listening sockets */
 	read_lock(&sco_sk_list.lock);
@@ -904,6 +963,9 @@ int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
 		if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr) ||
 		    !bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
 			lm |= HCI_LM_ACCEPT;
+
+			if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))
+				*flags |= HCI_PROTO_DEFER;
 			break;
 		}
 	}
@@ -914,7 +976,7 @@ int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
 
 void sco_connect_cfm(struct hci_conn *hcon, __u8 status)
 {
-	BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
+	BT_DBG("hcon %p bdaddr %pMR status %d", hcon, &hcon->dst, status);
 	if (!status) {
 		struct sco_conn *conn;
 
@@ -959,8 +1021,8 @@ static int sco_debugfs_show(struct seq_file *f, void *p)
 	read_lock(&sco_sk_list.lock);
 
 	sk_for_each(sk, node, &sco_sk_list.head) {
-		seq_printf(f, "%s %s %d\n", batostr(&bt_sk(sk)->src),
-			   batostr(&bt_sk(sk)->dst), sk->sk_state);
+		seq_printf(f, "%pMR %pMR %d\n", &bt_sk(sk)->src,
+			   &bt_sk(sk)->dst, sk->sk_state);
 	}
 
 	read_unlock(&sco_sk_list.lock);
@@ -992,7 +1054,7 @@ static const struct proto_ops sco_sock_ops = {
 	.accept		= sco_sock_accept,
 	.getname	= sco_sock_getname,
 	.sendmsg	= sco_sock_sendmsg,
-	.recvmsg	= bt_sock_recvmsg,
+	.recvmsg	= sco_sock_recvmsg,
 	.poll		= bt_sock_poll,
 	.ioctl		= bt_sock_ioctl,
 	.mmap		= sock_no_mmap,
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index a592337..68a9587 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -167,7 +167,7 @@ static struct sk_buff *smp_build_cmd(struct l2cap_conn *conn, u8 code,
 
 	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
 	lh->len = cpu_to_le16(sizeof(code) + dlen);
-	lh->cid = cpu_to_le16(L2CAP_CID_SMP);
+	lh->cid = __constant_cpu_to_le16(L2CAP_CID_SMP);
 
 	memcpy(skb_put(skb, sizeof(code)), &code, sizeof(code));
 
diff --git a/net/bridge/Makefile b/net/bridge/Makefile
index d0359ea..e859098 100644
--- a/net/bridge/Makefile
+++ b/net/bridge/Makefile
@@ -12,6 +12,6 @@ bridge-$(CONFIG_SYSFS) += br_sysfs_if.o br_sysfs_br.o
 
 bridge-$(CONFIG_BRIDGE_NETFILTER) += br_netfilter.o
 
-bridge-$(CONFIG_BRIDGE_IGMP_SNOOPING) += br_multicast.o
+bridge-$(CONFIG_BRIDGE_IGMP_SNOOPING) += br_multicast.o br_mdb.o
 
 obj-$(CONFIG_BRIDGE_NF_EBTABLES) += netfilter/
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 070e8a6..7c78e26 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -313,6 +313,8 @@ static const struct net_device_ops br_netdev_ops = {
 	.ndo_fdb_add		 = br_fdb_add,
 	.ndo_fdb_del		 = br_fdb_delete,
 	.ndo_fdb_dump		 = br_fdb_dump,
+	.ndo_bridge_getlink	 = br_getlink,
+	.ndo_bridge_setlink	 = br_setlink,
 };
 
 static void br_dev_free(struct net_device *dev)
@@ -356,7 +358,7 @@ void br_dev_setup(struct net_device *dev)
 	br->bridge_id.prio[0] = 0x80;
 	br->bridge_id.prio[1] = 0x00;
 
-	memcpy(br->group_addr, br_group_address, ETH_ALEN);
+	memcpy(br->group_addr, eth_reserved_addr_base, ETH_ALEN);
 
 	br->stp_enabled = BR_NO_STP;
 	br->group_fwd_mask = BR_GROUPFWD_DEFAULT;
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 76f15fd..4b34207 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -19,9 +19,6 @@
 #include <linux/export.h>
 #include "br_private.h"
 
-/* Bridge group multicast address 802.1d (pg 51). */
-const u8 br_group_address[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
-
 /* Hook for brouter */
 br_should_route_hook_t __rcu *br_should_route_hook __read_mostly;
 EXPORT_SYMBOL(br_should_route_hook);
@@ -127,18 +124,6 @@ static int br_handle_local_finish(struct sk_buff *skb)
 	return 0;	 /* process further */
 }
 
-/* Does address match the link local multicast address.
- * 01:80:c2:00:00:0X
- */
-static inline int is_link_local(const unsigned char *dest)
-{
-	__be16 *a = (__be16 *)dest;
-	static const __be16 *b = (const __be16 *)br_group_address;
-	static const __be16 m = cpu_to_be16(0xfff0);
-
-	return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | ((a[2] ^ b[2]) & m)) == 0;
-}
-
 /*
  * Return NULL if skb is handled
  * note: already called with rcu_read_lock
@@ -162,7 +147,7 @@ rx_handler_result_t br_handle_frame(struct sk_buff **pskb)
 
 	p = br_port_get_rcu(skb->dev);
 
-	if (unlikely(is_link_local(dest))) {
+	if (unlikely(is_link_local_ether_addr(dest))) {
 		/*
 		 * See IEEE 802.1D Table 7-10 Reserved addresses
 		 *
diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
index 7222fe1..cd8c3a4 100644
--- a/net/bridge/br_ioctl.c
+++ b/net/bridge/br_ioctl.c
@@ -85,13 +85,14 @@ static int get_fdb_entries(struct net_bridge *br, void __user *userbuf,
 /* called with RTNL */
 static int add_del_if(struct net_bridge *br, int ifindex, int isadd)
 {
+	struct net *net = dev_net(br->dev);
 	struct net_device *dev;
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
-	dev = __dev_get_by_index(dev_net(br->dev), ifindex);
+	dev = __dev_get_by_index(net, ifindex);
 	if (dev == NULL)
 		return -EINVAL;
 
@@ -178,25 +179,25 @@ static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	}
 
 	case BRCTL_SET_BRIDGE_FORWARD_DELAY:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 
 		return br_set_forward_delay(br, args[1]);
 
 	case BRCTL_SET_BRIDGE_HELLO_TIME:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 
 		return br_set_hello_time(br, args[1]);
 
 	case BRCTL_SET_BRIDGE_MAX_AGE:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 
 		return br_set_max_age(br, args[1]);
 
 	case BRCTL_SET_AGEING_TIME:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 
 		br->ageing_time = clock_t_to_jiffies(args[1]);
@@ -236,14 +237,14 @@ static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	}
 
 	case BRCTL_SET_BRIDGE_STP_STATE:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 
 		br_stp_set_enabled(br, args[1]);
 		return 0;
 
 	case BRCTL_SET_BRIDGE_PRIORITY:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 
 		spin_lock_bh(&br->lock);
@@ -256,7 +257,7 @@ static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 		struct net_bridge_port *p;
 		int ret;
 
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 
 		spin_lock_bh(&br->lock);
@@ -273,7 +274,7 @@ static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 		struct net_bridge_port *p;
 		int ret;
 
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 
 		spin_lock_bh(&br->lock);
@@ -330,7 +331,7 @@ static int old_deviceless(struct net *net, void __user *uarg)
 	{
 		char buf[IFNAMSIZ];
 
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 
 		if (copy_from_user(buf, (void __user *)args[1], IFNAMSIZ))
@@ -360,7 +361,7 @@ int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *uar
 	{
 		char buf[IFNAMSIZ];
 
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 
 		if (copy_from_user(buf, uarg, IFNAMSIZ))
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
new file mode 100644
index 0000000..6f0a2ee
--- /dev/null
+++ b/net/bridge/br_mdb.c
@@ -0,0 +1,481 @@
+#include <linux/err.h>
+#include <linux/igmp.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/rculist.h>
+#include <linux/skbuff.h>
+#include <linux/if_ether.h>
+#include <net/ip.h>
+#include <net/netlink.h>
+#if IS_ENABLED(CONFIG_IPV6)
+#include <net/ipv6.h>
+#endif
+
+#include "br_private.h"
+
+static int br_rports_fill_info(struct sk_buff *skb, struct netlink_callback *cb,
+			       struct net_device *dev)
+{
+	struct net_bridge *br = netdev_priv(dev);
+	struct net_bridge_port *p;
+	struct hlist_node *n;
+	struct nlattr *nest;
+
+	if (!br->multicast_router || hlist_empty(&br->router_list))
+		return 0;
+
+	nest = nla_nest_start(skb, MDBA_ROUTER);
+	if (nest == NULL)
+		return -EMSGSIZE;
+
+	hlist_for_each_entry_rcu(p, n, &br->router_list, rlist) {
+		if (p && nla_put_u32(skb, MDBA_ROUTER_PORT, p->dev->ifindex))
+			goto fail;
+	}
+
+	nla_nest_end(skb, nest);
+	return 0;
+fail:
+	nla_nest_cancel(skb, nest);
+	return -EMSGSIZE;
+}
+
+static int br_mdb_fill_info(struct sk_buff *skb, struct netlink_callback *cb,
+			    struct net_device *dev)
+{
+	struct net_bridge *br = netdev_priv(dev);
+	struct net_bridge_mdb_htable *mdb;
+	struct nlattr *nest, *nest2;
+	int i, err = 0;
+	int idx = 0, s_idx = cb->args[1];
+
+	if (br->multicast_disabled)
+		return 0;
+
+	mdb = rcu_dereference(br->mdb);
+	if (!mdb)
+		return 0;
+
+	nest = nla_nest_start(skb, MDBA_MDB);
+	if (nest == NULL)
+		return -EMSGSIZE;
+
+	for (i = 0; i < mdb->max; i++) {
+		struct hlist_node *h;
+		struct net_bridge_mdb_entry *mp;
+		struct net_bridge_port_group *p, **pp;
+		struct net_bridge_port *port;
+
+		hlist_for_each_entry_rcu(mp, h, &mdb->mhash[i], hlist[mdb->ver]) {
+			if (idx < s_idx)
+				goto skip;
+
+			nest2 = nla_nest_start(skb, MDBA_MDB_ENTRY);
+			if (nest2 == NULL) {
+				err = -EMSGSIZE;
+				goto out;
+			}
+
+			for (pp = &mp->ports;
+			     (p = rcu_dereference(*pp)) != NULL;
+			      pp = &p->next) {
+				port = p->port;
+				if (port) {
+					struct br_mdb_entry e;
+					e.ifindex = port->dev->ifindex;
+					e.addr.u.ip4 = p->addr.u.ip4;
+#if IS_ENABLED(CONFIG_IPV6)
+					e.addr.u.ip6 = p->addr.u.ip6;
+#endif
+					e.addr.proto = p->addr.proto;
+					if (nla_put(skb, MDBA_MDB_ENTRY_INFO, sizeof(e), &e)) {
+						nla_nest_cancel(skb, nest2);
+						err = -EMSGSIZE;
+						goto out;
+					}
+				}
+			}
+			nla_nest_end(skb, nest2);
+		skip:
+			idx++;
+		}
+	}
+
+out:
+	cb->args[1] = idx;
+	nla_nest_end(skb, nest);
+	return err;
+}
+
+static int br_mdb_dump(struct sk_buff *skb, struct netlink_callback *cb)
+{
+	struct net_device *dev;
+	struct net *net = sock_net(skb->sk);
+	struct nlmsghdr *nlh = NULL;
+	int idx = 0, s_idx;
+
+	s_idx = cb->args[0];
+
+	rcu_read_lock();
+
+	/* In theory this could be wrapped to 0... */
+	cb->seq = net->dev_base_seq + br_mdb_rehash_seq;
+
+	for_each_netdev_rcu(net, dev) {
+		if (dev->priv_flags & IFF_EBRIDGE) {
+			struct br_port_msg *bpm;
+
+			if (idx < s_idx)
+				goto skip;
+
+			nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid,
+					cb->nlh->nlmsg_seq, RTM_GETMDB,
+					sizeof(*bpm), NLM_F_MULTI);
+			if (nlh == NULL)
+				break;
+
+			bpm = nlmsg_data(nlh);
+			bpm->ifindex = dev->ifindex;
+			if (br_mdb_fill_info(skb, cb, dev) < 0)
+				goto out;
+			if (br_rports_fill_info(skb, cb, dev) < 0)
+				goto out;
+
+			cb->args[1] = 0;
+			nlmsg_end(skb, nlh);
+		skip:
+			idx++;
+		}
+	}
+
+out:
+	if (nlh)
+		nlmsg_end(skb, nlh);
+	rcu_read_unlock();
+	cb->args[0] = idx;
+	return skb->len;
+}
+
+static int nlmsg_populate_mdb_fill(struct sk_buff *skb,
+				   struct net_device *dev,
+				   struct br_mdb_entry *entry, u32 pid,
+				   u32 seq, int type, unsigned int flags)
+{
+	struct nlmsghdr *nlh;
+	struct br_port_msg *bpm;
+	struct nlattr *nest, *nest2;
+
+	nlh = nlmsg_put(skb, pid, seq, type, sizeof(*bpm), NLM_F_MULTI);
+	if (!nlh)
+		return -EMSGSIZE;
+
+	bpm = nlmsg_data(nlh);
+	bpm->family  = AF_BRIDGE;
+	bpm->ifindex = dev->ifindex;
+	nest = nla_nest_start(skb, MDBA_MDB);
+	if (nest == NULL)
+		goto cancel;
+	nest2 = nla_nest_start(skb, MDBA_MDB_ENTRY);
+	if (nest2 == NULL)
+		goto end;
+
+	if (nla_put(skb, MDBA_MDB_ENTRY_INFO, sizeof(*entry), entry))
+		goto end;
+
+	nla_nest_end(skb, nest2);
+	nla_nest_end(skb, nest);
+	return nlmsg_end(skb, nlh);
+
+end:
+	nla_nest_end(skb, nest);
+cancel:
+	nlmsg_cancel(skb, nlh);
+	return -EMSGSIZE;
+}
+
+static inline size_t rtnl_mdb_nlmsg_size(void)
+{
+	return NLMSG_ALIGN(sizeof(struct br_port_msg))
+		+ nla_total_size(sizeof(struct br_mdb_entry));
+}
+
+static void __br_mdb_notify(struct net_device *dev, struct br_mdb_entry *entry,
+			    int type)
+{
+	struct net *net = dev_net(dev);
+	struct sk_buff *skb;
+	int err = -ENOBUFS;
+
+	skb = nlmsg_new(rtnl_mdb_nlmsg_size(), GFP_ATOMIC);
+	if (!skb)
+		goto errout;
+
+	err = nlmsg_populate_mdb_fill(skb, dev, entry, 0, 0, type, NTF_SELF);
+	if (err < 0) {
+		kfree_skb(skb);
+		goto errout;
+	}
+
+	rtnl_notify(skb, net, 0, RTNLGRP_MDB, NULL, GFP_ATOMIC);
+	return;
+errout:
+	rtnl_set_sk_err(net, RTNLGRP_MDB, err);
+}
+
+void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port,
+		   struct br_ip *group, int type)
+{
+	struct br_mdb_entry entry;
+
+	entry.ifindex = port->dev->ifindex;
+	entry.addr.proto = group->proto;
+	entry.addr.u.ip4 = group->u.ip4;
+#if IS_ENABLED(CONFIG_IPV6)
+	entry.addr.u.ip6 = group->u.ip6;
+#endif
+	__br_mdb_notify(dev, &entry, type);
+}
+
+static bool is_valid_mdb_entry(struct br_mdb_entry *entry)
+{
+	if (entry->ifindex == 0)
+		return false;
+
+	if (entry->addr.proto == htons(ETH_P_IP)) {
+		if (!ipv4_is_multicast(entry->addr.u.ip4))
+			return false;
+		if (ipv4_is_local_multicast(entry->addr.u.ip4))
+			return false;
+#if IS_ENABLED(CONFIG_IPV6)
+	} else if (entry->addr.proto == htons(ETH_P_IPV6)) {
+		if (!ipv6_is_transient_multicast(&entry->addr.u.ip6))
+			return false;
+#endif
+	} else
+		return false;
+
+	return true;
+}
+
+static int br_mdb_parse(struct sk_buff *skb, struct nlmsghdr *nlh,
+			struct net_device **pdev, struct br_mdb_entry **pentry)
+{
+	struct net *net = sock_net(skb->sk);
+	struct br_mdb_entry *entry;
+	struct br_port_msg *bpm;
+	struct nlattr *tb[MDBA_SET_ENTRY_MAX+1];
+	struct net_device *dev;
+	int err;
+
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
+	err = nlmsg_parse(nlh, sizeof(*bpm), tb, MDBA_SET_ENTRY, NULL);
+	if (err < 0)
+		return err;
+
+	bpm = nlmsg_data(nlh);
+	if (bpm->ifindex == 0) {
+		pr_info("PF_BRIDGE: br_mdb_parse() with invalid ifindex\n");
+		return -EINVAL;
+	}
+
+	dev = __dev_get_by_index(net, bpm->ifindex);
+	if (dev == NULL) {
+		pr_info("PF_BRIDGE: br_mdb_parse() with unknown ifindex\n");
+		return -ENODEV;
+	}
+
+	if (!(dev->priv_flags & IFF_EBRIDGE)) {
+		pr_info("PF_BRIDGE: br_mdb_parse() with non-bridge\n");
+		return -EOPNOTSUPP;
+	}
+
+	*pdev = dev;
+
+	if (!tb[MDBA_SET_ENTRY] ||
+	    nla_len(tb[MDBA_SET_ENTRY]) != sizeof(struct br_mdb_entry)) {
+		pr_info("PF_BRIDGE: br_mdb_parse() with invalid attr\n");
+		return -EINVAL;
+	}
+
+	entry = nla_data(tb[MDBA_SET_ENTRY]);
+	if (!is_valid_mdb_entry(entry)) {
+		pr_info("PF_BRIDGE: br_mdb_parse() with invalid entry\n");
+		return -EINVAL;
+	}
+
+	*pentry = entry;
+	return 0;
+}
+
+static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port,
+			    struct br_ip *group)
+{
+	struct net_bridge_mdb_entry *mp;
+	struct net_bridge_port_group *p;
+	struct net_bridge_port_group __rcu **pp;
+	struct net_bridge_mdb_htable *mdb;
+	int err;
+
+	mdb = mlock_dereference(br->mdb, br);
+	mp = br_mdb_ip_get(mdb, group);
+	if (!mp) {
+		mp = br_multicast_new_group(br, port, group);
+		err = PTR_ERR(mp);
+		if (IS_ERR(mp))
+			return err;
+	}
+
+	for (pp = &mp->ports;
+	     (p = mlock_dereference(*pp, br)) != NULL;
+	     pp = &p->next) {
+		if (p->port == port)
+			return -EEXIST;
+		if ((unsigned long)p->port < (unsigned long)port)
+			break;
+	}
+
+	p = br_multicast_new_port_group(port, group, *pp);
+	if (unlikely(!p))
+		return -ENOMEM;
+	rcu_assign_pointer(*pp, p);
+
+	br_mdb_notify(br->dev, port, group, RTM_NEWMDB);
+	return 0;
+}
+
+static int __br_mdb_add(struct net *net, struct net_bridge *br,
+			struct br_mdb_entry *entry)
+{
+	struct br_ip ip;
+	struct net_device *dev;
+	struct net_bridge_port *p;
+	int ret;
+
+	if (!netif_running(br->dev) || br->multicast_disabled)
+		return -EINVAL;
+
+	dev = __dev_get_by_index(net, entry->ifindex);
+	if (!dev)
+		return -ENODEV;
+
+	p = br_port_get_rtnl(dev);
+	if (!p || p->br != br || p->state == BR_STATE_DISABLED)
+		return -EINVAL;
+
+	ip.proto = entry->addr.proto;
+	if (ip.proto == htons(ETH_P_IP))
+		ip.u.ip4 = entry->addr.u.ip4;
+#if IS_ENABLED(CONFIG_IPV6)
+	else
+		ip.u.ip6 = entry->addr.u.ip6;
+#endif
+
+	spin_lock_bh(&br->multicast_lock);
+	ret = br_mdb_add_group(br, p, &ip);
+	spin_unlock_bh(&br->multicast_lock);
+	return ret;
+}
+
+static int br_mdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+{
+	struct net *net = sock_net(skb->sk);
+	struct br_mdb_entry *entry;
+	struct net_device *dev;
+	struct net_bridge *br;
+	int err;
+
+	err = br_mdb_parse(skb, nlh, &dev, &entry);
+	if (err < 0)
+		return err;
+
+	br = netdev_priv(dev);
+
+	err = __br_mdb_add(net, br, entry);
+	if (!err)
+		__br_mdb_notify(dev, entry, RTM_NEWMDB);
+	return err;
+}
+
+static int __br_mdb_del(struct net_bridge *br, struct br_mdb_entry *entry)
+{
+	struct net_bridge_mdb_htable *mdb;
+	struct net_bridge_mdb_entry *mp;
+	struct net_bridge_port_group *p;
+	struct net_bridge_port_group __rcu **pp;
+	struct br_ip ip;
+	int err = -EINVAL;
+
+	if (!netif_running(br->dev) || br->multicast_disabled)
+		return -EINVAL;
+
+	if (timer_pending(&br->multicast_querier_timer))
+		return -EBUSY;
+
+	ip.proto = entry->addr.proto;
+	if (ip.proto == htons(ETH_P_IP))
+		ip.u.ip4 = entry->addr.u.ip4;
+#if IS_ENABLED(CONFIG_IPV6)
+	else
+		ip.u.ip6 = entry->addr.u.ip6;
+#endif
+
+	spin_lock_bh(&br->multicast_lock);
+	mdb = mlock_dereference(br->mdb, br);
+
+	mp = br_mdb_ip_get(mdb, &ip);
+	if (!mp)
+		goto unlock;
+
+	for (pp = &mp->ports;
+	     (p = mlock_dereference(*pp, br)) != NULL;
+	     pp = &p->next) {
+		if (!p->port || p->port->dev->ifindex != entry->ifindex)
+			continue;
+
+		if (p->port->state == BR_STATE_DISABLED)
+			goto unlock;
+
+		rcu_assign_pointer(*pp, p->next);
+		hlist_del_init(&p->mglist);
+		del_timer(&p->timer);
+		call_rcu_bh(&p->rcu, br_multicast_free_pg);
+		err = 0;
+
+		if (!mp->ports && !mp->mglist &&
+		    netif_running(br->dev))
+			mod_timer(&mp->timer, jiffies);
+		break;
+	}
+
+unlock:
+	spin_unlock_bh(&br->multicast_lock);
+	return err;
+}
+
+static int br_mdb_del(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+{
+	struct net_device *dev;
+	struct br_mdb_entry *entry;
+	struct net_bridge *br;
+	int err;
+
+	err = br_mdb_parse(skb, nlh, &dev, &entry);
+	if (err < 0)
+		return err;
+
+	br = netdev_priv(dev);
+
+	err = __br_mdb_del(br, entry);
+	if (!err)
+		__br_mdb_notify(dev, entry, RTM_DELMDB);
+	return err;
+}
+
+void br_mdb_init(void)
+{
+	rtnl_register(PF_BRIDGE, RTM_GETMDB, NULL, br_mdb_dump, NULL);
+	rtnl_register(PF_BRIDGE, RTM_NEWMDB, br_mdb_add, NULL, NULL);
+	rtnl_register(PF_BRIDGE, RTM_DELMDB, br_mdb_del, NULL, NULL);
+}
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 2417434..977c3ee 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -27,25 +27,13 @@
 #if IS_ENABLED(CONFIG_IPV6)
 #include <net/ipv6.h>
 #include <net/mld.h>
-#include <net/addrconf.h>
 #include <net/ip6_checksum.h>
 #endif
 
 #include "br_private.h"
 
-#define mlock_dereference(X, br) \
-	rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
-
 static void br_multicast_start_querier(struct net_bridge *br);
-
-#if IS_ENABLED(CONFIG_IPV6)
-static inline int ipv6_is_transient_multicast(const struct in6_addr *addr)
-{
-	if (ipv6_addr_is_multicast(addr) && IPV6_ADDR_MC_FLAG_TRANSIENT(addr))
-		return 1;
-	return 0;
-}
-#endif
+unsigned int br_mdb_rehash_seq;
 
 static inline int br_ip_equal(const struct br_ip *a, const struct br_ip *b)
 {
@@ -103,8 +91,8 @@ static struct net_bridge_mdb_entry *__br_mdb_ip_get(
 	return NULL;
 }
 
-static struct net_bridge_mdb_entry *br_mdb_ip_get(
-	struct net_bridge_mdb_htable *mdb, struct br_ip *dst)
+struct net_bridge_mdb_entry *br_mdb_ip_get(struct net_bridge_mdb_htable *mdb,
+					   struct br_ip *dst)
 {
 	if (!mdb)
 		return NULL;
@@ -207,7 +195,7 @@ static int br_mdb_copy(struct net_bridge_mdb_htable *new,
 	return maxlen > elasticity ? -EINVAL : 0;
 }
 
-static void br_multicast_free_pg(struct rcu_head *head)
+void br_multicast_free_pg(struct rcu_head *head)
 {
 	struct net_bridge_port_group *p =
 		container_of(head, struct net_bridge_port_group, rcu);
@@ -338,6 +326,7 @@ static int br_mdb_rehash(struct net_bridge_mdb_htable __rcu **mdbp, int max,
 		return err;
 	}
 
+	br_mdb_rehash_seq++;
 	call_rcu_bh(&mdb->rcu, br_mdb_free);
 
 out:
@@ -582,9 +571,8 @@ err:
 	return mp;
 }
 
-static struct net_bridge_mdb_entry *br_multicast_new_group(
-	struct net_bridge *br, struct net_bridge_port *port,
-	struct br_ip *group)
+struct net_bridge_mdb_entry *br_multicast_new_group(struct net_bridge *br,
+	struct net_bridge_port *port, struct br_ip *group)
 {
 	struct net_bridge_mdb_htable *mdb;
 	struct net_bridge_mdb_entry *mp;
@@ -631,6 +619,26 @@ out:
 	return mp;
 }
 
+struct net_bridge_port_group *br_multicast_new_port_group(
+			struct net_bridge_port *port,
+			struct br_ip *group,
+			struct net_bridge_port_group *next)
+{
+	struct net_bridge_port_group *p;
+
+	p = kzalloc(sizeof(*p), GFP_ATOMIC);
+	if (unlikely(!p))
+		return NULL;
+
+	p->addr = *group;
+	p->port = port;
+	p->next = next;
+	hlist_add_head(&p->mglist, &port->mglist);
+	setup_timer(&p->timer, br_multicast_port_group_expired,
+		    (unsigned long)p);
+	return p;
+}
+
 static int br_multicast_add_group(struct net_bridge *br,
 				  struct net_bridge_port *port,
 				  struct br_ip *group)
@@ -666,19 +674,11 @@ static int br_multicast_add_group(struct net_bridge *br,
 			break;
 	}
 
-	p = kzalloc(sizeof(*p), GFP_ATOMIC);
-	err = -ENOMEM;
+	p = br_multicast_new_port_group(port, group, *pp);
 	if (unlikely(!p))
 		goto err;
-
-	p->addr = *group;
-	p->port = port;
-	p->next = *pp;
-	hlist_add_head(&p->mglist, &port->mglist);
-	setup_timer(&p->timer, br_multicast_port_group_expired,
-		    (unsigned long)p);
-
 	rcu_assign_pointer(*pp, p);
+	br_mdb_notify(br->dev, port, group, RTM_NEWMDB);
 
 found:
 	mod_timer(&p->timer, now + br->multicast_membership_interval);
@@ -1225,6 +1225,28 @@ static void br_multicast_leave_group(struct net_bridge *br,
 	if (!mp)
 		goto out;
 
+	if (port && (port->flags & BR_MULTICAST_FAST_LEAVE)) {
+		struct net_bridge_port_group __rcu **pp;
+
+		for (pp = &mp->ports;
+		     (p = mlock_dereference(*pp, br)) != NULL;
+		     pp = &p->next) {
+			if (p->port != port)
+				continue;
+
+			rcu_assign_pointer(*pp, p->next);
+			hlist_del_init(&p->mglist);
+			del_timer(&p->timer);
+			call_rcu_bh(&p->rcu, br_multicast_free_pg);
+			br_mdb_notify(br->dev, port, group, RTM_DELMDB);
+
+			if (!mp->ports && !mp->mglist &&
+			    netif_running(br->dev))
+				mod_timer(&mp->timer, jiffies);
+		}
+		goto out;
+	}
+
 	now = jiffies;
 	time = now + br->multicast_last_member_count *
 		     br->multicast_last_member_interval;
@@ -1584,6 +1606,7 @@ void br_multicast_init(struct net_bridge *br)
 		    br_multicast_querier_expired, (unsigned long)br);
 	setup_timer(&br->multicast_query_timer, br_multicast_query_expired,
 		    (unsigned long)br);
+	br_mdb_init();
 }
 
 void br_multicast_open(struct net_bridge *br)
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 093f527..dead9df 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -20,16 +20,44 @@
 #include "br_private.h"
 #include "br_private_stp.h"
 
+static inline size_t br_port_info_size(void)
+{
+	return nla_total_size(1)	/* IFLA_BRPORT_STATE  */
+		+ nla_total_size(2)	/* IFLA_BRPORT_PRIORITY */
+		+ nla_total_size(4)	/* IFLA_BRPORT_COST */
+		+ nla_total_size(1)	/* IFLA_BRPORT_MODE */
+		+ nla_total_size(1)	/* IFLA_BRPORT_GUARD */
+		+ nla_total_size(1)	/* IFLA_BRPORT_PROTECT */
+		+ 0;
+}
+
 static inline size_t br_nlmsg_size(void)
 {
 	return NLMSG_ALIGN(sizeof(struct ifinfomsg))
-	       + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
-	       + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
-	       + nla_total_size(4) /* IFLA_MASTER */
-	       + nla_total_size(4) /* IFLA_MTU */
-	       + nla_total_size(4) /* IFLA_LINK */
-	       + nla_total_size(1) /* IFLA_OPERSTATE */
-	       + nla_total_size(1); /* IFLA_PROTINFO */
+		+ nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
+		+ nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
+		+ nla_total_size(4) /* IFLA_MASTER */
+		+ nla_total_size(4) /* IFLA_MTU */
+		+ nla_total_size(4) /* IFLA_LINK */
+		+ nla_total_size(1) /* IFLA_OPERSTATE */
+		+ nla_total_size(br_port_info_size()); /* IFLA_PROTINFO */
+}
+
+static int br_port_fill_attrs(struct sk_buff *skb,
+			      const struct net_bridge_port *p)
+{
+	u8 mode = !!(p->flags & BR_HAIRPIN_MODE);
+
+	if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) ||
+	    nla_put_u16(skb, IFLA_BRPORT_PRIORITY, p->priority) ||
+	    nla_put_u32(skb, IFLA_BRPORT_COST, p->path_cost) ||
+	    nla_put_u8(skb, IFLA_BRPORT_MODE, mode) ||
+	    nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) ||
+	    nla_put_u8(skb, IFLA_BRPORT_PROTECT, !!(p->flags & BR_ROOT_BLOCK)) ||
+	    nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE, !!(p->flags & BR_MULTICAST_FAST_LEAVE)))
+		return -EMSGSIZE;
+
+	return 0;
 }
 
 /*
@@ -67,10 +95,18 @@ static int br_fill_ifinfo(struct sk_buff *skb, const struct net_bridge_port *por
 	    (dev->addr_len &&
 	     nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
 	    (dev->ifindex != dev->iflink &&
-	     nla_put_u32(skb, IFLA_LINK, dev->iflink)) ||
-	    (event == RTM_NEWLINK &&
-	     nla_put_u8(skb, IFLA_PROTINFO, port->state)))
+	     nla_put_u32(skb, IFLA_LINK, dev->iflink)))
 		goto nla_put_failure;
+
+	if (event == RTM_NEWLINK) {
+		struct nlattr *nest
+			= nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED);
+
+		if (nest == NULL || br_port_fill_attrs(skb, port) < 0)
+			goto nla_put_failure;
+		nla_nest_end(skb, nest);
+	}
+
 	return nlmsg_end(skb, nlh);
 
 nla_put_failure:
@@ -111,89 +147,134 @@ errout:
 /*
  * Dump information about all ports, in response to GETLINK
  */
-static int br_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
+int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
+	       struct net_device *dev)
 {
-	struct net *net = sock_net(skb->sk);
-	struct net_device *dev;
-	int idx;
-
-	idx = 0;
-	rcu_read_lock();
-	for_each_netdev_rcu(net, dev) {
-		struct net_bridge_port *port = br_port_get_rcu(dev);
-
-		/* not a bridge port */
-		if (!port || idx < cb->args[0])
-			goto skip;
-
-		if (br_fill_ifinfo(skb, port,
-				   NETLINK_CB(cb->skb).portid,
-				   cb->nlh->nlmsg_seq, RTM_NEWLINK,
-				   NLM_F_MULTI) < 0)
-			break;
-skip:
-		++idx;
+	int err = 0;
+	struct net_bridge_port *port = br_port_get_rcu(dev);
+
+	/* not a bridge port */
+	if (!port)
+		goto out;
+
+	err = br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, NLM_F_MULTI);
+out:
+	return err;
+}
+
+static const struct nla_policy ifla_brport_policy[IFLA_BRPORT_MAX + 1] = {
+	[IFLA_BRPORT_STATE]	= { .type = NLA_U8 },
+	[IFLA_BRPORT_COST]	= { .type = NLA_U32 },
+	[IFLA_BRPORT_PRIORITY]	= { .type = NLA_U16 },
+	[IFLA_BRPORT_MODE]	= { .type = NLA_U8 },
+	[IFLA_BRPORT_GUARD]	= { .type = NLA_U8 },
+	[IFLA_BRPORT_PROTECT]	= { .type = NLA_U8 },
+};
+
+/* Change the state of the port and notify spanning tree */
+static int br_set_port_state(struct net_bridge_port *p, u8 state)
+{
+	if (state > BR_STATE_BLOCKING)
+		return -EINVAL;
+
+	/* if kernel STP is running, don't allow changes */
+	if (p->br->stp_enabled == BR_KERNEL_STP)
+		return -EBUSY;
+
+	if (!netif_running(p->dev) ||
+	    (!netif_carrier_ok(p->dev) && state != BR_STATE_DISABLED))
+		return -ENETDOWN;
+
+	p->state = state;
+	br_log_state(p);
+	br_port_state_selection(p->br);
+	return 0;
+}
+
+/* Set/clear or port flags based on attribute */
+static void br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
+			   int attrtype, unsigned long mask)
+{
+	if (tb[attrtype]) {
+		u8 flag = nla_get_u8(tb[attrtype]);
+		if (flag)
+			p->flags |= mask;
+		else
+			p->flags &= ~mask;
 	}
-	rcu_read_unlock();
-	cb->args[0] = idx;
+}
+
+/* Process bridge protocol info on port */
+static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
+{
+	int err;
 
-	return skb->len;
+	br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
+	br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
+	br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
+
+	if (tb[IFLA_BRPORT_COST]) {
+		err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
+		if (err)
+			return err;
+	}
+
+	if (tb[IFLA_BRPORT_PRIORITY]) {
+		err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY]));
+		if (err)
+			return err;
+	}
+
+	if (tb[IFLA_BRPORT_STATE]) {
+		err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE]));
+		if (err)
+			return err;
+	}
+	return 0;
 }
 
-/*
- * Change state of port (ie from forwarding to blocking etc)
- * Used by spanning tree in user space.
- */
-static int br_rtm_setlink(struct sk_buff *skb,  struct nlmsghdr *nlh, void *arg)
+/* Change state and parameters on port. */
+int br_setlink(struct net_device *dev, struct nlmsghdr *nlh)
 {
-	struct net *net = sock_net(skb->sk);
 	struct ifinfomsg *ifm;
 	struct nlattr *protinfo;
-	struct net_device *dev;
 	struct net_bridge_port *p;
-	u8 new_state;
-
-	if (nlmsg_len(nlh) < sizeof(*ifm))
-		return -EINVAL;
+	struct nlattr *tb[IFLA_BRPORT_MAX + 1];
+	int err;
 
 	ifm = nlmsg_data(nlh);
-	if (ifm->ifi_family != AF_BRIDGE)
-		return -EPFNOSUPPORT;
 
 	protinfo = nlmsg_find_attr(nlh, sizeof(*ifm), IFLA_PROTINFO);
-	if (!protinfo || nla_len(protinfo) < sizeof(u8))
-		return -EINVAL;
-
-	new_state = nla_get_u8(protinfo);
-	if (new_state > BR_STATE_BLOCKING)
-		return -EINVAL;
-
-	dev = __dev_get_by_index(net, ifm->ifi_index);
-	if (!dev)
-		return -ENODEV;
+	if (!protinfo)
+		return 0;
 
 	p = br_port_get_rtnl(dev);
 	if (!p)
 		return -EINVAL;
 
-	/* if kernel STP is running, don't allow changes */
-	if (p->br->stp_enabled == BR_KERNEL_STP)
-		return -EBUSY;
-
-	if (!netif_running(dev) ||
-	    (!netif_carrier_ok(dev) && new_state != BR_STATE_DISABLED))
-		return -ENETDOWN;
-
-	p->state = new_state;
-	br_log_state(p);
+	if (protinfo->nla_type & NLA_F_NESTED) {
+		err = nla_parse_nested(tb, IFLA_BRPORT_MAX,
+				       protinfo, ifla_brport_policy);
+		if (err)
+			return err;
+
+		spin_lock_bh(&p->br->lock);
+		err = br_setport(p, tb);
+		spin_unlock_bh(&p->br->lock);
+	} else {
+		/* Binary compatability with old RSTP */
+		if (nla_len(protinfo) < sizeof(u8))
+			return -EINVAL;
 
-	spin_lock_bh(&p->br->lock);
-	br_port_state_selection(p->br);
-	spin_unlock_bh(&p->br->lock);
+		spin_lock_bh(&p->br->lock);
+		err = br_set_port_state(p, nla_get_u8(protinfo));
+		spin_unlock_bh(&p->br->lock);
+	}
 
-	br_ifinfo_notify(RTM_NEWLINK, p);
+	if (err == 0)
+		br_ifinfo_notify(RTM_NEWLINK, p);
 
-	return 0;
+	return err;
 }
 
 static int br_validate(struct nlattr *tb[], struct nlattr *data[])
@@ -218,29 +299,7 @@ struct rtnl_link_ops br_link_ops __read_mostly = {
 
 int __init br_netlink_init(void)
 {
-	int err;
-
-	err = rtnl_link_register(&br_link_ops);
-	if (err < 0)
-		goto err1;
-
-	err = __rtnl_register(PF_BRIDGE, RTM_GETLINK, NULL,
-			      br_dump_ifinfo, NULL);
-	if (err)
-		goto err2;
-	err = __rtnl_register(PF_BRIDGE, RTM_SETLINK,
-			      br_rtm_setlink, NULL, NULL);
-	if (err)
-		goto err3;
-
-	return 0;
-
-err3:
-	rtnl_unregister_all(PF_BRIDGE);
-err2:
-	rtnl_link_unregister(&br_link_ops);
-err1:
-	return err;
+	return rtnl_link_register(&br_link_ops);
 }
 
 void __exit br_netlink_fini(void)
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 9b278c4..f21a739 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -135,6 +135,9 @@ struct net_bridge_port
 
 	unsigned long 			flags;
 #define BR_HAIRPIN_MODE		0x00000001
+#define BR_BPDU_GUARD           0x00000002
+#define BR_ROOT_BLOCK		0x00000004
+#define BR_MULTICAST_FAST_LEAVE	0x00000008
 
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 	u32				multicast_startup_queries_sent;
@@ -158,7 +161,9 @@ struct net_bridge_port
 
 static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev)
 {
-	struct net_bridge_port *port = rcu_dereference(dev->rx_handler_data);
+	struct net_bridge_port *port =
+			rcu_dereference_rtnl(dev->rx_handler_data);
+
 	return br_port_exists(dev) ? port : NULL;
 }
 
@@ -288,7 +293,6 @@ struct br_input_skb_cb {
 	pr_debug("%s: " format,  (br)->dev->name, ##args)
 
 extern struct notifier_block br_device_notifier;
-extern const u8 br_group_address[ETH_ALEN];
 
 /* called under bridge lock */
 static inline int br_is_root_bridge(const struct net_bridge *br)
@@ -407,6 +411,7 @@ extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __us
 
 /* br_multicast.c */
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+extern unsigned int br_mdb_rehash_seq;
 extern int br_multicast_rcv(struct net_bridge *br,
 			    struct net_bridge_port *port,
 			    struct sk_buff *skb);
@@ -429,6 +434,32 @@ extern int br_multicast_set_port_router(struct net_bridge_port *p,
 extern int br_multicast_toggle(struct net_bridge *br, unsigned long val);
 extern int br_multicast_set_querier(struct net_bridge *br, unsigned long val);
 extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
+extern struct net_bridge_mdb_entry *br_mdb_ip_get(
+				struct net_bridge_mdb_htable *mdb,
+				struct br_ip *dst);
+extern struct net_bridge_mdb_entry *br_multicast_new_group(struct net_bridge *br,
+				struct net_bridge_port *port, struct br_ip *group);
+extern void br_multicast_free_pg(struct rcu_head *head);
+extern struct net_bridge_port_group *br_multicast_new_port_group(
+				struct net_bridge_port *port,
+				struct br_ip *group,
+				struct net_bridge_port_group *next);
+extern void br_mdb_init(void);
+extern void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port,
+			  struct br_ip *group, int type);
+
+#define mlock_dereference(X, br) \
+	rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
+
+#if IS_ENABLED(CONFIG_IPV6)
+#include <net/addrconf.h>
+static inline int ipv6_is_transient_multicast(const struct in6_addr *addr)
+{
+	if (ipv6_addr_is_multicast(addr) && IPV6_ADDR_MC_FLAG_TRANSIENT(addr))
+		return 1;
+	return 0;
+}
+#endif
 
 static inline bool br_multicast_is_router(struct net_bridge *br)
 {
@@ -553,6 +584,9 @@ extern struct rtnl_link_ops br_link_ops;
 extern int br_netlink_init(void);
 extern void br_netlink_fini(void);
 extern void br_ifinfo_notify(int event, struct net_bridge_port *port);
+extern int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg);
+extern int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
+		      struct net_device *dev);
 
 #ifdef CONFIG_SYSFS
 /* br_sysfs_if.c */
@@ -566,10 +600,10 @@ extern void br_sysfs_delbr(struct net_device *dev);
 
 #else
 
-#define br_sysfs_addif(p)	(0)
-#define br_sysfs_renameif(p)	(0)
-#define br_sysfs_addbr(dev)	(0)
-#define br_sysfs_delbr(dev)	do { } while(0)
+static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; }
+static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; }
+static inline int br_sysfs_addbr(struct net_device *dev) { return 0; }
+static inline void br_sysfs_delbr(struct net_device *dev) { return; }
 #endif /* CONFIG_SYSFS */
 
 #endif
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index af9a120..b01849a 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -100,6 +100,21 @@ static int br_should_become_root_port(const struct net_bridge_port *p,
 	return 0;
 }
 
+static void br_root_port_block(const struct net_bridge *br,
+			       struct net_bridge_port *p)
+{
+
+	br_notice(br, "port %u(%s) tried to become root port (blocked)",
+		  (unsigned int) p->port_no, p->dev->name);
+
+	p->state = BR_STATE_LISTENING;
+	br_log_state(p);
+	br_ifinfo_notify(RTM_NEWLINK, p);
+
+	if (br->forward_delay > 0)
+		mod_timer(&p->forward_delay_timer, jiffies + br->forward_delay);
+}
+
 /* called under bridge lock */
 static void br_root_selection(struct net_bridge *br)
 {
@@ -107,7 +122,12 @@ static void br_root_selection(struct net_bridge *br)
 	u16 root_port = 0;
 
 	list_for_each_entry(p, &br->port_list, list) {
-		if (br_should_become_root_port(p, root_port))
+		if (!br_should_become_root_port(p, root_port))
+			continue;
+
+		if (p->flags & BR_ROOT_BLOCK)
+			br_root_port_block(br, p);
+		else
 			root_port = p->port_no;
 	}
 
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index fd30a60..7f884e3 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -170,6 +170,13 @@ void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
 	if (!ether_addr_equal(dest, br->group_addr))
 		goto out;
 
+	if (p->flags & BR_BPDU_GUARD) {
+		br_notice(br, "BPDU received on blocked port %u(%s)\n",
+			  (unsigned int) p->port_no, p->dev->name);
+		br_stp_disable_port(p);
+		goto out;
+	}
+
 	buf = skb_pull(skb, 3);
 
 	if (buf[0] == BPDU_TYPE_CONFIG) {
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index c5c0593..5913a3a 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -14,6 +14,7 @@
 #include <linux/capability.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
+#include <linux/etherdevice.h>
 #include <linux/if_bridge.h>
 #include <linux/rtnetlink.h>
 #include <linux/spinlock.h>
@@ -36,7 +37,7 @@ static ssize_t store_bridge_parm(struct device *d,
 	unsigned long val;
 	int err;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	val = simple_strtoul(buf, &endp, 0);
@@ -132,7 +133,7 @@ static ssize_t store_stp_state(struct device *d,
 	char *endp;
 	unsigned long val;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	val = simple_strtoul(buf, &endp, 0);
@@ -165,7 +166,7 @@ static ssize_t store_group_fwd_mask(struct device *d,
 	char *endp;
 	unsigned long val;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	val = simple_strtoul(buf, &endp, 0);
@@ -297,23 +298,18 @@ static ssize_t store_group_addr(struct device *d,
 				const char *buf, size_t len)
 {
 	struct net_bridge *br = to_bridge(d);
-	unsigned int new_addr[6];
+	u8 new_addr[6];
 	int i;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
-	if (sscanf(buf, "%x:%x:%x:%x:%x:%x",
+	if (sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
 		   &new_addr[0], &new_addr[1], &new_addr[2],
 		   &new_addr[3], &new_addr[4], &new_addr[5]) != 6)
 		return -EINVAL;
 
-	/* Must be 01:80:c2:00:00:0X */
-	for (i = 0; i < 5; i++)
-		if (new_addr[i] != br_group_address[i])
-			return -EINVAL;
-
-	if (new_addr[5] & ~0xf)
+	if (!is_link_local_ether_addr(new_addr))
 		return -EINVAL;
 
 	if (new_addr[5] == 1 ||		/* 802.3x Pause address */
@@ -337,7 +333,7 @@ static ssize_t store_flush(struct device *d,
 {
 	struct net_bridge *br = to_bridge(d);
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	br_fdb_flush(br);
diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 13b36bd..a1ef1b6 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -34,6 +34,28 @@ const struct brport_attribute brport_attr_##_name = { 	        \
 	.store	= _store,					\
 };
 
+#define BRPORT_ATTR_FLAG(_name, _mask)				\
+static ssize_t show_##_name(struct net_bridge_port *p, char *buf) \
+{								\
+	return sprintf(buf, "%d\n", !!(p->flags & _mask));	\
+}								\
+static int store_##_name(struct net_bridge_port *p, unsigned long v) \
+{								\
+	unsigned long flags = p->flags;				\
+	if (v)							\
+		flags |= _mask;					\
+	else							\
+		flags &= ~_mask;				\
+	if (flags != p->flags) {				\
+		p->flags = flags;				\
+		br_ifinfo_notify(RTM_NEWLINK, p);		\
+	}							\
+	return 0;						\
+}								\
+static BRPORT_ATTR(_name, S_IRUGO | S_IWUSR,			\
+		   show_##_name, store_##_name)
+
+
 static ssize_t show_path_cost(struct net_bridge_port *p, char *buf)
 {
 	return sprintf(buf, "%d\n", p->path_cost);
@@ -133,21 +155,9 @@ static int store_flush(struct net_bridge_port *p, unsigned long v)
 }
 static BRPORT_ATTR(flush, S_IWUSR, NULL, store_flush);
 
-static ssize_t show_hairpin_mode(struct net_bridge_port *p, char *buf)
-{
-	int hairpin_mode = (p->flags & BR_HAIRPIN_MODE) ? 1 : 0;
-	return sprintf(buf, "%d\n", hairpin_mode);
-}
-static int store_hairpin_mode(struct net_bridge_port *p, unsigned long v)
-{
-	if (v)
-		p->flags |= BR_HAIRPIN_MODE;
-	else
-		p->flags &= ~BR_HAIRPIN_MODE;
-	return 0;
-}
-static BRPORT_ATTR(hairpin_mode, S_IRUGO | S_IWUSR,
-		   show_hairpin_mode, store_hairpin_mode);
+BRPORT_ATTR_FLAG(hairpin_mode, BR_HAIRPIN_MODE);
+BRPORT_ATTR_FLAG(bpdu_guard, BR_BPDU_GUARD);
+BRPORT_ATTR_FLAG(root_block, BR_ROOT_BLOCK);
 
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf)
@@ -162,6 +172,8 @@ static int store_multicast_router(struct net_bridge_port *p,
 }
 static BRPORT_ATTR(multicast_router, S_IRUGO | S_IWUSR, show_multicast_router,
 		   store_multicast_router);
+
+BRPORT_ATTR_FLAG(multicast_fast_leave, BR_MULTICAST_FAST_LEAVE);
 #endif
 
 static const struct brport_attribute *brport_attrs[] = {
@@ -181,8 +193,11 @@ static const struct brport_attribute *brport_attrs[] = {
 	&brport_attr_hold_timer,
 	&brport_attr_flush,
 	&brport_attr_hairpin_mode,
+	&brport_attr_bpdu_guard,
+	&brport_attr_root_block,
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 	&brport_attr_multicast_router,
+	&brport_attr_multicast_fast_leave,
 #endif
 	NULL
 };
@@ -209,7 +224,7 @@ static ssize_t brport_store(struct kobject * kobj,
 	char *endp;
 	unsigned long val;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(dev_net(p->dev)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	val = simple_strtoul(buf, &endp, 0);
diff --git a/net/caif/caif_usb.c b/net/caif/caif_usb.c
index fd7cbf5..3ebc8cb 100644
--- a/net/caif/caif_usb.c
+++ b/net/caif/caif_usb.c
@@ -126,20 +126,16 @@ static int cfusbl_device_notify(struct notifier_block *me, unsigned long what,
 	struct net_device *dev = arg;
 	struct caif_dev_common common;
 	struct cflayer *layer, *link_support;
-	struct usbnet	*usbnet = netdev_priv(dev);
-	struct usb_device	*usbdev = usbnet->udev;
-	struct ethtool_drvinfo drvinfo;
+	struct usbnet *usbnet;
+	struct usb_device *usbdev;
 
-	/*
-	 * Quirks: High-jack ethtool to find if we have a NCM device,
-	 * and find it's VID/PID.
-	 */
-	if (dev->ethtool_ops == NULL || dev->ethtool_ops->get_drvinfo == NULL)
+	/* Check whether we have a NCM device, and find its VID/PID. */
+	if (!(dev->dev.parent && dev->dev.parent->driver &&
+	      strcmp(dev->dev.parent->driver->name, "cdc_ncm") == 0))
 		return 0;
 
-	dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
-	if (strncmp(drvinfo.driver, "cdc_ncm", 7) != 0)
-		return 0;
+	usbnet = netdev_priv(dev);
+	usbdev = usbnet->udev;
 
 	pr_debug("USB CDC NCM device VID:0x%4x PID:0x%4x\n",
 		le16_to_cpu(usbdev->descriptor.idVendor),
diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c
index 44f270f..a376ec1 100644
--- a/net/caif/cfctrl.c
+++ b/net/caif/cfctrl.c
@@ -515,8 +515,7 @@ static int cfctrl_recv(struct cflayer *layer, struct cfpkt *pkt)
 							  client_layer : NULL);
 			}
 
-			if (req != NULL)
-				kfree(req);
+			kfree(req);
 
 			spin_unlock_bh(&cfctrl->info_list_lock);
 		}
diff --git a/net/can/gw.c b/net/can/gw.c
index 1f5c9785..574dda78e 100644
--- a/net/can/gw.c
+++ b/net/can/gw.c
@@ -751,6 +751,9 @@ static int cgw_create_job(struct sk_buff *skb,  struct nlmsghdr *nlh,
 	struct cgw_job *gwj;
 	int err = 0;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (nlmsg_len(nlh) < sizeof(*r))
 		return -EINVAL;
 
@@ -839,6 +842,9 @@ static int cgw_remove_job(struct sk_buff *skb,  struct nlmsghdr *nlh, void *arg)
 	struct can_can_gw ccgw;
 	int err = 0;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (nlmsg_len(nlh) < sizeof(*r))
 		return -EINVAL;
 
diff --git a/net/core/dev.c b/net/core/dev.c
index e5942bf..d0cbc93 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -176,8 +176,10 @@
 #define PTYPE_HASH_MASK	(PTYPE_HASH_SIZE - 1)
 
 static DEFINE_SPINLOCK(ptype_lock);
+static DEFINE_SPINLOCK(offload_lock);
 static struct list_head ptype_base[PTYPE_HASH_SIZE] __read_mostly;
 static struct list_head ptype_all __read_mostly;	/* Taps */
+static struct list_head offload_base __read_mostly;
 
 /*
  * The @dev_base_head list is protected by @dev_base_lock and the rtnl
@@ -201,6 +203,8 @@ static struct list_head ptype_all __read_mostly;	/* Taps */
 DEFINE_RWLOCK(dev_base_lock);
 EXPORT_SYMBOL(dev_base_lock);
 
+DEFINE_SEQLOCK(devnet_rename_seq);
+
 static inline void dev_base_seq_inc(struct net *net)
 {
 	while (++net->dev_base_seq == 0);
@@ -470,6 +474,82 @@ void dev_remove_pack(struct packet_type *pt)
 }
 EXPORT_SYMBOL(dev_remove_pack);
 
+
+/**
+ *	dev_add_offload - register offload handlers
+ *	@po: protocol offload declaration
+ *
+ *	Add protocol offload handlers to the networking stack. The passed
+ *	&proto_offload is linked into kernel lists and may not be freed until
+ *	it has been removed from the kernel lists.
+ *
+ *	This call does not sleep therefore it can not
+ *	guarantee all CPU's that are in middle of receiving packets
+ *	will see the new offload handlers (until the next received packet).
+ */
+void dev_add_offload(struct packet_offload *po)
+{
+	struct list_head *head = &offload_base;
+
+	spin_lock(&offload_lock);
+	list_add_rcu(&po->list, head);
+	spin_unlock(&offload_lock);
+}
+EXPORT_SYMBOL(dev_add_offload);
+
+/**
+ *	__dev_remove_offload	 - remove offload handler
+ *	@po: packet offload declaration
+ *
+ *	Remove a protocol offload handler that was previously added to the
+ *	kernel offload handlers by dev_add_offload(). The passed &offload_type
+ *	is removed from the kernel lists and can be freed or reused once this
+ *	function returns.
+ *
+ *      The packet type might still be in use by receivers
+ *	and must not be freed until after all the CPU's have gone
+ *	through a quiescent state.
+ */
+void __dev_remove_offload(struct packet_offload *po)
+{
+	struct list_head *head = &offload_base;
+	struct packet_offload *po1;
+
+	spin_lock(&offload_lock);
+
+	list_for_each_entry(po1, head, list) {
+		if (po == po1) {
+			list_del_rcu(&po->list);
+			goto out;
+		}
+	}
+
+	pr_warn("dev_remove_offload: %p not found\n", po);
+out:
+	spin_unlock(&offload_lock);
+}
+EXPORT_SYMBOL(__dev_remove_offload);
+
+/**
+ *	dev_remove_offload	 - remove packet offload handler
+ *	@po: packet offload declaration
+ *
+ *	Remove a packet offload handler that was previously added to the kernel
+ *	offload handlers by dev_add_offload(). The passed &offload_type is
+ *	removed from the kernel lists and can be freed or reused once this
+ *	function returns.
+ *
+ *	This call sleeps to guarantee that no CPU is looking at the packet
+ *	type after return.
+ */
+void dev_remove_offload(struct packet_offload *po)
+{
+	__dev_remove_offload(po);
+
+	synchronize_net();
+}
+EXPORT_SYMBOL(dev_remove_offload);
+
 /******************************************************************************
 
 		      Device Boot-time Settings Routines
@@ -1013,22 +1093,31 @@ int dev_change_name(struct net_device *dev, const char *newname)
 	if (dev->flags & IFF_UP)
 		return -EBUSY;
 
-	if (strncmp(newname, dev->name, IFNAMSIZ) == 0)
+	write_seqlock(&devnet_rename_seq);
+
+	if (strncmp(newname, dev->name, IFNAMSIZ) == 0) {
+		write_sequnlock(&devnet_rename_seq);
 		return 0;
+	}
 
 	memcpy(oldname, dev->name, IFNAMSIZ);
 
 	err = dev_get_valid_name(net, dev, newname);
-	if (err < 0)
+	if (err < 0) {
+		write_sequnlock(&devnet_rename_seq);
 		return err;
+	}
 
 rollback:
 	ret = device_rename(&dev->dev, dev->name);
 	if (ret) {
 		memcpy(dev->name, oldname, IFNAMSIZ);
+		write_sequnlock(&devnet_rename_seq);
 		return ret;
 	}
 
+	write_sequnlock(&devnet_rename_seq);
+
 	write_lock_bh(&dev_base_lock);
 	hlist_del_rcu(&dev->name_hlist);
 	write_unlock_bh(&dev_base_lock);
@@ -1046,6 +1135,7 @@ rollback:
 		/* err >= 0 after dev_alloc_name() or stores the first errno */
 		if (err >= 0) {
 			err = ret;
+			write_seqlock(&devnet_rename_seq);
 			memcpy(dev->name, oldname, IFNAMSIZ);
 			goto rollback;
 		} else {
@@ -1075,10 +1165,8 @@ int dev_set_alias(struct net_device *dev, const char *alias, size_t len)
 		return -EINVAL;
 
 	if (!len) {
-		if (dev->ifalias) {
-			kfree(dev->ifalias);
-			dev->ifalias = NULL;
-		}
+		kfree(dev->ifalias);
+		dev->ifalias = NULL;
 		return 0;
 	}
 
@@ -1994,7 +2082,7 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb,
 	netdev_features_t features)
 {
 	struct sk_buff *segs = ERR_PTR(-EPROTONOSUPPORT);
-	struct packet_type *ptype;
+	struct packet_offload *ptype;
 	__be16 type = skb->protocol;
 	int vlan_depth = ETH_HLEN;
 	int err;
@@ -2023,18 +2111,17 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb,
 	}
 
 	rcu_read_lock();
-	list_for_each_entry_rcu(ptype,
-			&ptype_base[ntohs(type) & PTYPE_HASH_MASK], list) {
-		if (ptype->type == type && !ptype->dev && ptype->gso_segment) {
+	list_for_each_entry_rcu(ptype, &offload_base, list) {
+		if (ptype->type == type && ptype->callbacks.gso_segment) {
 			if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
-				err = ptype->gso_send_check(skb);
+				err = ptype->callbacks.gso_send_check(skb);
 				segs = ERR_PTR(err);
 				if (err || skb_gso_ok(skb, features))
 					break;
 				__skb_push(skb, (skb->data -
 						 skb_network_header(skb)));
 			}
-			segs = ptype->gso_segment(skb, features);
+			segs = ptype->callbacks.gso_segment(skb, features);
 			break;
 		}
 	}
@@ -2237,6 +2324,13 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 			skb->vlan_tci = 0;
 		}
 
+		/* If encapsulation offload request, verify we are testing
+		 * hardware encapsulation features instead of standard
+		 * features for the netdev
+		 */
+		if (skb->encapsulation)
+			features &= dev->hw_enc_features;
+
 		if (netif_needs_gso(skb, features)) {
 			if (unlikely(dev_gso_segment(skb, features)))
 				goto out_kfree_skb;
@@ -2252,8 +2346,12 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 			 * checksumming here.
 			 */
 			if (skb->ip_summed == CHECKSUM_PARTIAL) {
-				skb_set_transport_header(skb,
-					skb_checksum_start_offset(skb));
+				if (skb->encapsulation)
+					skb_set_inner_transport_header(skb,
+						skb_checksum_start_offset(skb));
+				else
+					skb_set_transport_header(skb,
+						skb_checksum_start_offset(skb));
 				if (!(features & NETIF_F_ALL_CSUM) &&
 				     skb_checksum_help(skb))
 					goto out_kfree_skb;
@@ -3446,9 +3544,9 @@ static void flush_backlog(void *arg)
 
 static int napi_gro_complete(struct sk_buff *skb)
 {
-	struct packet_type *ptype;
+	struct packet_offload *ptype;
 	__be16 type = skb->protocol;
-	struct list_head *head = &ptype_base[ntohs(type) & PTYPE_HASH_MASK];
+	struct list_head *head = &offload_base;
 	int err = -ENOENT;
 
 	BUILD_BUG_ON(sizeof(struct napi_gro_cb) > sizeof(skb->cb));
@@ -3460,10 +3558,10 @@ static int napi_gro_complete(struct sk_buff *skb)
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(ptype, head, list) {
-		if (ptype->type != type || ptype->dev || !ptype->gro_complete)
+		if (ptype->type != type || !ptype->callbacks.gro_complete)
 			continue;
 
-		err = ptype->gro_complete(skb);
+		err = ptype->callbacks.gro_complete(skb);
 		break;
 	}
 	rcu_read_unlock();
@@ -3507,12 +3605,34 @@ void napi_gro_flush(struct napi_struct *napi, bool flush_old)
 }
 EXPORT_SYMBOL(napi_gro_flush);
 
-enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
+static void gro_list_prepare(struct napi_struct *napi, struct sk_buff *skb)
+{
+	struct sk_buff *p;
+	unsigned int maclen = skb->dev->hard_header_len;
+
+	for (p = napi->gro_list; p; p = p->next) {
+		unsigned long diffs;
+
+		diffs = (unsigned long)p->dev ^ (unsigned long)skb->dev;
+		diffs |= p->vlan_tci ^ skb->vlan_tci;
+		if (maclen == ETH_HLEN)
+			diffs |= compare_ether_header(skb_mac_header(p),
+						      skb_gro_mac_header(skb));
+		else if (!diffs)
+			diffs = memcmp(skb_mac_header(p),
+				       skb_gro_mac_header(skb),
+				       maclen);
+		NAPI_GRO_CB(p)->same_flow = !diffs;
+		NAPI_GRO_CB(p)->flush = 0;
+	}
+}
+
+static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
 	struct sk_buff **pp = NULL;
-	struct packet_type *ptype;
+	struct packet_offload *ptype;
 	__be16 type = skb->protocol;
-	struct list_head *head = &ptype_base[ntohs(type) & PTYPE_HASH_MASK];
+	struct list_head *head = &offload_base;
 	int same_flow;
 	int mac_len;
 	enum gro_result ret;
@@ -3523,9 +3643,11 @@ enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 	if (skb_is_gso(skb) || skb_has_frag_list(skb))
 		goto normal;
 
+	gro_list_prepare(napi, skb);
+
 	rcu_read_lock();
 	list_for_each_entry_rcu(ptype, head, list) {
-		if (ptype->type != type || ptype->dev || !ptype->gro_receive)
+		if (ptype->type != type || !ptype->callbacks.gro_receive)
 			continue;
 
 		skb_set_network_header(skb, skb_gro_offset(skb));
@@ -3535,7 +3657,7 @@ enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 		NAPI_GRO_CB(skb)->flush = 0;
 		NAPI_GRO_CB(skb)->free = 0;
 
-		pp = ptype->gro_receive(&napi->gro_list, skb);
+		pp = ptype->callbacks.gro_receive(&napi->gro_list, skb);
 		break;
 	}
 	rcu_read_unlock();
@@ -3598,34 +3720,9 @@ normal:
 	ret = GRO_NORMAL;
 	goto pull;
 }
-EXPORT_SYMBOL(dev_gro_receive);
-
-static inline gro_result_t
-__napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
-{
-	struct sk_buff *p;
-	unsigned int maclen = skb->dev->hard_header_len;
-
-	for (p = napi->gro_list; p; p = p->next) {
-		unsigned long diffs;
-
-		diffs = (unsigned long)p->dev ^ (unsigned long)skb->dev;
-		diffs |= p->vlan_tci ^ skb->vlan_tci;
-		if (maclen == ETH_HLEN)
-			diffs |= compare_ether_header(skb_mac_header(p),
-						      skb_gro_mac_header(skb));
-		else if (!diffs)
-			diffs = memcmp(skb_mac_header(p),
-				       skb_gro_mac_header(skb),
-				       maclen);
-		NAPI_GRO_CB(p)->same_flow = !diffs;
-		NAPI_GRO_CB(p)->flush = 0;
-	}
 
-	return dev_gro_receive(napi, skb);
-}
 
-gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb)
+static gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb)
 {
 	switch (ret) {
 	case GRO_NORMAL:
@@ -3651,7 +3748,6 @@ gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb)
 
 	return ret;
 }
-EXPORT_SYMBOL(napi_skb_finish);
 
 static void skb_gro_reset_offset(struct sk_buff *skb)
 {
@@ -3674,7 +3770,7 @@ gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
 	skb_gro_reset_offset(skb);
 
-	return napi_skb_finish(__napi_gro_receive(napi, skb), skb);
+	return napi_skb_finish(dev_gro_receive(napi, skb), skb);
 }
 EXPORT_SYMBOL(napi_gro_receive);
 
@@ -3703,7 +3799,7 @@ struct sk_buff *napi_get_frags(struct napi_struct *napi)
 }
 EXPORT_SYMBOL(napi_get_frags);
 
-gro_result_t napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb,
+static gro_result_t napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb,
 			       gro_result_t ret)
 {
 	switch (ret) {
@@ -3728,7 +3824,6 @@ gro_result_t napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb,
 
 	return ret;
 }
-EXPORT_SYMBOL(napi_frags_finish);
 
 static struct sk_buff *napi_frags_skb(struct napi_struct *napi)
 {
@@ -3773,7 +3868,7 @@ gro_result_t napi_gro_frags(struct napi_struct *napi)
 	if (!skb)
 		return GRO_DROP;
 
-	return napi_frags_finish(napi, skb, __napi_gro_receive(napi, skb));
+	return napi_frags_finish(napi, skb, dev_gro_receive(napi, skb));
 }
 EXPORT_SYMBOL(napi_gro_frags);
 
@@ -4075,6 +4170,7 @@ static int dev_ifname(struct net *net, struct ifreq __user *arg)
 {
 	struct net_device *dev;
 	struct ifreq ifr;
+	unsigned seq;
 
 	/*
 	 *	Fetch the caller's info block.
@@ -4083,6 +4179,8 @@ static int dev_ifname(struct net *net, struct ifreq __user *arg)
 	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
 		return -EFAULT;
 
+retry:
+	seq = read_seqbegin(&devnet_rename_seq);
 	rcu_read_lock();
 	dev = dev_get_by_index_rcu(net, ifr.ifr_ifindex);
 	if (!dev) {
@@ -4092,6 +4190,8 @@ static int dev_ifname(struct net *net, struct ifreq __user *arg)
 
 	strcpy(ifr.ifr_name, dev->name);
 	rcu_read_unlock();
+	if (read_seqretry(&devnet_rename_seq, seq))
+		goto retry;
 
 	if (copy_to_user(arg, &ifr, sizeof(struct ifreq)))
 		return -EFAULT;
@@ -4884,7 +4984,7 @@ int dev_set_mtu(struct net_device *dev, int new_mtu)
 	else
 		dev->mtu = new_mtu;
 
-	if (!err && dev->flags & IFF_UP)
+	if (!err)
 		call_netdevice_notifiers(NETDEV_CHANGEMTU, dev);
 	return err;
 }
@@ -5204,7 +5304,7 @@ int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 	case SIOCGMIIPHY:
 	case SIOCGMIIREG:
 	case SIOCSIFNAME:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 		dev_load(net, ifr.ifr_name);
 		rtnl_lock();
@@ -5225,16 +5325,25 @@ int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 	 *	- require strict serialization.
 	 *	- do not return a value
 	 */
+	case SIOCSIFMAP:
+	case SIOCSIFTXQLEN:
+		if (!capable(CAP_NET_ADMIN))
+			return -EPERM;
+		/* fall through */
+	/*
+	 *	These ioctl calls:
+	 *	- require local superuser power.
+	 *	- require strict serialization.
+	 *	- do not return a value
+	 */
 	case SIOCSIFFLAGS:
 	case SIOCSIFMETRIC:
 	case SIOCSIFMTU:
-	case SIOCSIFMAP:
 	case SIOCSIFHWADDR:
 	case SIOCSIFSLAVE:
 	case SIOCADDMULTI:
 	case SIOCDELMULTI:
 	case SIOCSIFHWBROADCAST:
-	case SIOCSIFTXQLEN:
 	case SIOCSMIIREG:
 	case SIOCBONDENSLAVE:
 	case SIOCBONDRELEASE:
@@ -5243,7 +5352,7 @@ int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 	case SIOCBRADDIF:
 	case SIOCBRDELIF:
 	case SIOCSHWTSTAMP:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 		/* fall through */
 	case SIOCBONDSLAVEINFOQUERY:
@@ -6268,7 +6377,6 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
 		goto out;
 
 	/* Ensure the device has been registrered */
-	err = -EINVAL;
 	if (dev->reg_state != NETREG_REGISTERED)
 		goto out;
 
@@ -6323,6 +6431,9 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
 	dev_uc_flush(dev);
 	dev_mc_flush(dev);
 
+	/* Send a netdev-removed uevent to the old namespace */
+	kobject_uevent(&dev->dev.kobj, KOBJ_REMOVE);
+
 	/* Actually switch the network namespace */
 	dev_net_set(dev, net);
 
@@ -6334,6 +6445,9 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
 			dev->iflink = dev->ifindex;
 	}
 
+	/* Send a netdev-add uevent to the new namespace */
+	kobject_uevent(&dev->dev.kobj, KOBJ_ADD);
+
 	/* Fixup kobjects */
 	err = device_rename(&dev->dev, dev->name);
 	WARN_ON(err);
@@ -6666,6 +6780,8 @@ static int __init net_dev_init(void)
 	for (i = 0; i < PTYPE_HASH_SIZE; i++)
 		INIT_LIST_HEAD(&ptype_base[i]);
 
+	INIT_LIST_HEAD(&offload_base);
+
 	if (register_pernet_subsys(&netdev_net_ops))
 		goto out;
 
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 4d64cc2..a870543 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1460,7 +1460,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
 	case ETHTOOL_GEEE:
 		break;
 	default:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 	}
 
diff --git a/net/core/filter.c b/net/core/filter.c
index 3d92ebb..c23543c 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -39,6 +39,7 @@
 #include <linux/reciprocal_div.h>
 #include <linux/ratelimit.h>
 #include <linux/seccomp.h>
+#include <linux/if_vlan.h>
 
 /* No hurry in this branch
  *
@@ -341,6 +342,12 @@ load_b:
 		case BPF_S_ANC_CPU:
 			A = raw_smp_processor_id();
 			continue;
+		case BPF_S_ANC_VLAN_TAG:
+			A = vlan_tx_tag_get(skb);
+			continue;
+		case BPF_S_ANC_VLAN_TAG_PRESENT:
+			A = !!vlan_tx_tag_present(skb);
+			continue;
 		case BPF_S_ANC_NLATTR: {
 			struct nlattr *nla;
 
@@ -600,6 +607,8 @@ int sk_chk_filter(struct sock_filter *filter, unsigned int flen)
 			ANCILLARY(RXHASH);
 			ANCILLARY(CPU);
 			ANCILLARY(ALU_XOR_X);
+			ANCILLARY(VLAN_TAG);
+			ANCILLARY(VLAN_TAG_PRESENT);
 			}
 		}
 		ftest->code = code;
@@ -751,3 +760,133 @@ int sk_detach_filter(struct sock *sk)
 	return ret;
 }
 EXPORT_SYMBOL_GPL(sk_detach_filter);
+
+static void sk_decode_filter(struct sock_filter *filt, struct sock_filter *to)
+{
+	static const u16 decodes[] = {
+		[BPF_S_ALU_ADD_K]	= BPF_ALU|BPF_ADD|BPF_K,
+		[BPF_S_ALU_ADD_X]	= BPF_ALU|BPF_ADD|BPF_X,
+		[BPF_S_ALU_SUB_K]	= BPF_ALU|BPF_SUB|BPF_K,
+		[BPF_S_ALU_SUB_X]	= BPF_ALU|BPF_SUB|BPF_X,
+		[BPF_S_ALU_MUL_K]	= BPF_ALU|BPF_MUL|BPF_K,
+		[BPF_S_ALU_MUL_X]	= BPF_ALU|BPF_MUL|BPF_X,
+		[BPF_S_ALU_DIV_X]	= BPF_ALU|BPF_DIV|BPF_X,
+		[BPF_S_ALU_MOD_K]	= BPF_ALU|BPF_MOD|BPF_K,
+		[BPF_S_ALU_MOD_X]	= BPF_ALU|BPF_MOD|BPF_X,
+		[BPF_S_ALU_AND_K]	= BPF_ALU|BPF_AND|BPF_K,
+		[BPF_S_ALU_AND_X]	= BPF_ALU|BPF_AND|BPF_X,
+		[BPF_S_ALU_OR_K]	= BPF_ALU|BPF_OR|BPF_K,
+		[BPF_S_ALU_OR_X]	= BPF_ALU|BPF_OR|BPF_X,
+		[BPF_S_ALU_XOR_K]	= BPF_ALU|BPF_XOR|BPF_K,
+		[BPF_S_ALU_XOR_X]	= BPF_ALU|BPF_XOR|BPF_X,
+		[BPF_S_ALU_LSH_K]	= BPF_ALU|BPF_LSH|BPF_K,
+		[BPF_S_ALU_LSH_X]	= BPF_ALU|BPF_LSH|BPF_X,
+		[BPF_S_ALU_RSH_K]	= BPF_ALU|BPF_RSH|BPF_K,
+		[BPF_S_ALU_RSH_X]	= BPF_ALU|BPF_RSH|BPF_X,
+		[BPF_S_ALU_NEG]		= BPF_ALU|BPF_NEG,
+		[BPF_S_LD_W_ABS]	= BPF_LD|BPF_W|BPF_ABS,
+		[BPF_S_LD_H_ABS]	= BPF_LD|BPF_H|BPF_ABS,
+		[BPF_S_LD_B_ABS]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_PROTOCOL]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_PKTTYPE]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_IFINDEX]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_NLATTR]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_NLATTR_NEST]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_MARK]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_QUEUE]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_HATYPE]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_RXHASH]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_CPU]		= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_ALU_XOR_X]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_SECCOMP_LD_W] = BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_VLAN_TAG]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_VLAN_TAG_PRESENT] = BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_LD_W_LEN]	= BPF_LD|BPF_W|BPF_LEN,
+		[BPF_S_LD_W_IND]	= BPF_LD|BPF_W|BPF_IND,
+		[BPF_S_LD_H_IND]	= BPF_LD|BPF_H|BPF_IND,
+		[BPF_S_LD_B_IND]	= BPF_LD|BPF_B|BPF_IND,
+		[BPF_S_LD_IMM]		= BPF_LD|BPF_IMM,
+		[BPF_S_LDX_W_LEN]	= BPF_LDX|BPF_W|BPF_LEN,
+		[BPF_S_LDX_B_MSH]	= BPF_LDX|BPF_B|BPF_MSH,
+		[BPF_S_LDX_IMM]		= BPF_LDX|BPF_IMM,
+		[BPF_S_MISC_TAX]	= BPF_MISC|BPF_TAX,
+		[BPF_S_MISC_TXA]	= BPF_MISC|BPF_TXA,
+		[BPF_S_RET_K]		= BPF_RET|BPF_K,
+		[BPF_S_RET_A]		= BPF_RET|BPF_A,
+		[BPF_S_ALU_DIV_K]	= BPF_ALU|BPF_DIV|BPF_K,
+		[BPF_S_LD_MEM]		= BPF_LD|BPF_MEM,
+		[BPF_S_LDX_MEM]		= BPF_LDX|BPF_MEM,
+		[BPF_S_ST]		= BPF_ST,
+		[BPF_S_STX]		= BPF_STX,
+		[BPF_S_JMP_JA]		= BPF_JMP|BPF_JA,
+		[BPF_S_JMP_JEQ_K]	= BPF_JMP|BPF_JEQ|BPF_K,
+		[BPF_S_JMP_JEQ_X]	= BPF_JMP|BPF_JEQ|BPF_X,
+		[BPF_S_JMP_JGE_K]	= BPF_JMP|BPF_JGE|BPF_K,
+		[BPF_S_JMP_JGE_X]	= BPF_JMP|BPF_JGE|BPF_X,
+		[BPF_S_JMP_JGT_K]	= BPF_JMP|BPF_JGT|BPF_K,
+		[BPF_S_JMP_JGT_X]	= BPF_JMP|BPF_JGT|BPF_X,
+		[BPF_S_JMP_JSET_K]	= BPF_JMP|BPF_JSET|BPF_K,
+		[BPF_S_JMP_JSET_X]	= BPF_JMP|BPF_JSET|BPF_X,
+	};
+	u16 code;
+
+	code = filt->code;
+
+	to->code = decodes[code];
+	to->jt = filt->jt;
+	to->jf = filt->jf;
+
+	if (code == BPF_S_ALU_DIV_K) {
+		/*
+		 * When loaded this rule user gave us X, which was
+		 * translated into R = r(X). Now we calculate the
+		 * RR = r(R) and report it back. If next time this
+		 * value is loaded and RRR = r(RR) is calculated
+		 * then the R == RRR will be true.
+		 *
+		 * One exception. X == 1 translates into R == 0 and
+		 * we can't calculate RR out of it with r().
+		 */
+
+		if (filt->k == 0)
+			to->k = 1;
+		else
+			to->k = reciprocal_value(filt->k);
+
+		BUG_ON(reciprocal_value(to->k) != filt->k);
+	} else
+		to->k = filt->k;
+}
+
+int sk_get_filter(struct sock *sk, struct sock_filter __user *ubuf, unsigned int len)
+{
+	struct sk_filter *filter;
+	int i, ret;
+
+	lock_sock(sk);
+	filter = rcu_dereference_protected(sk->sk_filter,
+			sock_owned_by_user(sk));
+	ret = 0;
+	if (!filter)
+		goto out;
+	ret = filter->len;
+	if (!len)
+		goto out;
+	ret = -EINVAL;
+	if (len < filter->len)
+		goto out;
+
+	ret = -EFAULT;
+	for (i = 0; i < filter->len; i++) {
+		struct sock_filter fb;
+
+		sk_decode_filter(&filter->insns[i], &fb);
+		if (copy_to_user(&ubuf[i], &fb, sizeof(fb)))
+			goto out;
+	}
+
+	ret = filter->len;
+out:
+	release_sock(sk);
+	return ret;
+}
diff --git a/net/core/flow.c b/net/core/flow.c
index e318c7e..b0901ee 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -327,11 +327,9 @@ static void flow_cache_flush_tasklet(unsigned long data)
 static void flow_cache_flush_per_cpu(void *data)
 {
 	struct flow_flush_info *info = data;
-	int cpu;
 	struct tasklet_struct *tasklet;
 
-	cpu = smp_processor_id();
-	tasklet = &per_cpu_ptr(info->cache->percpu, cpu)->flush_tasklet;
+	tasklet = this_cpu_ptr(&info->cache->percpu->flush_tasklet);
 	tasklet->data = (unsigned long)info;
 	tasklet_schedule(tasklet);
 }
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 2257148..c815f28 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1787,8 +1787,7 @@ static int neightbl_fill_parms(struct sk_buff *skb, struct neigh_parms *parms)
 	    nla_put_u32(skb, NDTPA_QUEUE_LENBYTES, parms->queue_len_bytes) ||
 	    /* approximative value for deprecated QUEUE_LEN (in packets) */
 	    nla_put_u32(skb, NDTPA_QUEUE_LEN,
-			DIV_ROUND_UP(parms->queue_len_bytes,
-				     SKB_TRUESIZE(ETH_FRAME_LEN))) ||
+			parms->queue_len_bytes / SKB_TRUESIZE(ETH_FRAME_LEN)) ||
 	    nla_put_u32(skb, NDTPA_PROXY_QLEN, parms->proxy_qlen) ||
 	    nla_put_u32(skb, NDTPA_APP_PROBES, parms->app_probes) ||
 	    nla_put_u32(skb, NDTPA_UCAST_PROBES, parms->ucast_probes) ||
@@ -2770,6 +2769,8 @@ EXPORT_SYMBOL(neigh_app_ns);
 #endif /* CONFIG_ARPD */
 
 #ifdef CONFIG_SYSCTL
+static int zero;
+static int unres_qlen_max = INT_MAX / SKB_TRUESIZE(ETH_FRAME_LEN);
 
 static int proc_unres_qlen(ctl_table *ctl, int write, void __user *buffer,
 			   size_t *lenp, loff_t *ppos)
@@ -2777,9 +2778,13 @@ static int proc_unres_qlen(ctl_table *ctl, int write, void __user *buffer,
 	int size, ret;
 	ctl_table tmp = *ctl;
 
+	tmp.extra1 = &zero;
+	tmp.extra2 = &unres_qlen_max;
 	tmp.data = &size;
-	size = DIV_ROUND_UP(*(int *)ctl->data, SKB_TRUESIZE(ETH_FRAME_LEN));
-	ret = proc_dointvec(&tmp, write, buffer, lenp, ppos);
+
+	size = *(int *)ctl->data / SKB_TRUESIZE(ETH_FRAME_LEN);
+	ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos);
+
 	if (write && !ret)
 		*(int *)ctl->data = size * SKB_TRUESIZE(ETH_FRAME_LEN);
 	return ret;
@@ -2865,7 +2870,8 @@ static struct neigh_sysctl_table {
 			.procname	= "unres_qlen_bytes",
 			.maxlen		= sizeof(int),
 			.mode		= 0644,
-			.proc_handler	= proc_dointvec,
+			.extra1		= &zero,
+			.proc_handler   = proc_dointvec_minmax,
 		},
 		[NEIGH_VAR_PROXY_QLEN] = {
 			.procname	= "proxy_qlen",
@@ -2987,6 +2993,10 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
 		t->neigh_vars[NEIGH_VAR_BASE_REACHABLE_TIME_MS].extra1 = dev;
 	}
 
+	/* Don't export sysctls to unprivileged users */
+	if (neigh_parms_net(p)->user_ns != &init_user_ns)
+		t->neigh_vars[0].procname = NULL;
+
 	snprintf(neigh_path, sizeof(neigh_path), "net/%s/neigh/%s",
 		p_name, dev_name_source);
 	t->sysctl_header =
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 017a8ba..334efd5 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -18,11 +18,9 @@
 #include <net/sock.h>
 #include <net/net_namespace.h>
 #include <linux/rtnetlink.h>
-#include <linux/wireless.h>
 #include <linux/vmalloc.h>
 #include <linux/export.h>
 #include <linux/jiffies.h>
-#include <net/wext.h>
 
 #include "net-sysfs.h"
 
@@ -73,11 +71,12 @@ static ssize_t netdev_store(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t len,
 			    int (*set)(struct net_device *, unsigned long))
 {
-	struct net_device *net = to_net_dev(dev);
+	struct net_device *netdev = to_net_dev(dev);
+	struct net *net = dev_net(netdev);
 	unsigned long new;
 	int ret = -EINVAL;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	ret = kstrtoul(buf, 0, &new);
@@ -87,8 +86,8 @@ static ssize_t netdev_store(struct device *dev, struct device_attribute *attr,
 	if (!rtnl_trylock())
 		return restart_syscall();
 
-	if (dev_isalive(net)) {
-		if ((ret = (*set)(net, new)) == 0)
+	if (dev_isalive(netdev)) {
+		if ((ret = (*set)(netdev, new)) == 0)
 			ret = len;
 	}
 	rtnl_unlock();
@@ -264,6 +263,9 @@ static ssize_t store_tx_queue_len(struct device *dev,
 				  struct device_attribute *attr,
 				  const char *buf, size_t len)
 {
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	return netdev_store(dev, attr, buf, len, change_tx_queue_len);
 }
 
@@ -271,10 +273,11 @@ static ssize_t store_ifalias(struct device *dev, struct device_attribute *attr,
 			     const char *buf, size_t len)
 {
 	struct net_device *netdev = to_net_dev(dev);
+	struct net *net = dev_net(netdev);
 	size_t count = len;
 	ssize_t ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	/* ignore trailing newline */
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 42f1e1c..6456439 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -13,6 +13,7 @@
 #include <linux/proc_fs.h>
 #include <linux/file.h>
 #include <linux/export.h>
+#include <linux/user_namespace.h>
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>
 
@@ -145,7 +146,7 @@ static void ops_free_list(const struct pernet_operations *ops,
 /*
  * setup_net runs the initializers for the network namespace object.
  */
-static __net_init int setup_net(struct net *net)
+static __net_init int setup_net(struct net *net, struct user_namespace *user_ns)
 {
 	/* Must be called with net_mutex held */
 	const struct pernet_operations *ops, *saved_ops;
@@ -155,6 +156,7 @@ static __net_init int setup_net(struct net *net)
 	atomic_set(&net->count, 1);
 	atomic_set(&net->passive, 1);
 	net->dev_base_seq = 1;
+	net->user_ns = user_ns;
 
 #ifdef NETNS_REFCNT_DEBUG
 	atomic_set(&net->use_count, 0);
@@ -232,7 +234,8 @@ void net_drop_ns(void *p)
 		net_free(ns);
 }
 
-struct net *copy_net_ns(unsigned long flags, struct net *old_net)
+struct net *copy_net_ns(unsigned long flags,
+			struct user_namespace *user_ns, struct net *old_net)
 {
 	struct net *net;
 	int rv;
@@ -243,8 +246,11 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
 	net = net_alloc();
 	if (!net)
 		return ERR_PTR(-ENOMEM);
+
+	get_user_ns(user_ns);
+
 	mutex_lock(&net_mutex);
-	rv = setup_net(net);
+	rv = setup_net(net, user_ns);
 	if (rv == 0) {
 		rtnl_lock();
 		list_add_tail_rcu(&net->list, &net_namespace_list);
@@ -252,6 +258,7 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
 	}
 	mutex_unlock(&net_mutex);
 	if (rv < 0) {
+		put_user_ns(user_ns);
 		net_drop_ns(net);
 		return ERR_PTR(rv);
 	}
@@ -308,6 +315,7 @@ static void cleanup_net(struct work_struct *work)
 	/* Finally it is safe to free my network namespace structure */
 	list_for_each_entry_safe(net, tmp, &net_exit_list, exit_list) {
 		list_del_init(&net->exit_list);
+		put_user_ns(net->user_ns);
 		net_drop_ns(net);
 	}
 }
@@ -347,13 +355,6 @@ struct net *get_net_ns_by_fd(int fd)
 }
 
 #else
-struct net *copy_net_ns(unsigned long flags, struct net *old_net)
-{
-	if (flags & CLONE_NEWNET)
-		return ERR_PTR(-EINVAL);
-	return old_net;
-}
-
 struct net *get_net_ns_by_fd(int fd)
 {
 	return ERR_PTR(-EINVAL);
@@ -402,7 +403,7 @@ static int __init net_ns_init(void)
 	rcu_assign_pointer(init_net.gen, ng);
 
 	mutex_lock(&net_mutex);
-	if (setup_net(&init_net))
+	if (setup_net(&init_net, &init_user_ns))
 		panic("Could not setup the initial network namespace");
 
 	rtnl_lock();
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 77a0388..3151acf 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -674,7 +674,8 @@ int netpoll_parse_options(struct netpoll *np, char *opt)
 		if ((delim = strchr(cur, '@')) == NULL)
 			goto parse_failed;
 		*delim = 0;
-		np->local_port = simple_strtol(cur, NULL, 10);
+		if (kstrtou16(cur, 10, &np->local_port))
+			goto parse_failed;
 		cur = delim;
 	}
 	cur++;
@@ -705,7 +706,8 @@ int netpoll_parse_options(struct netpoll *np, char *opt)
 		*delim = 0;
 		if (*cur == ' ' || *cur == '\t')
 			np_info(np, "warning: whitespace is not allowed\n");
-		np->remote_port = simple_strtol(cur, NULL, 10);
+		if (kstrtou16(cur, 10, &np->remote_port))
+			goto parse_failed;
 		cur = delim;
 	}
 	cur++;
diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c
index bde53da..5e67def 100644
--- a/net/core/netprio_cgroup.c
+++ b/net/core/netprio_cgroup.c
@@ -223,7 +223,7 @@ static int update_netprio(const void *v, struct file *file, unsigned n)
 	return 0;
 }
 
-void net_prio_attach(struct cgroup *cgrp, struct cgroup_taskset *tset)
+static void net_prio_attach(struct cgroup *cgrp, struct cgroup_taskset *tset)
 {
 	struct task_struct *p;
 	void *v;
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index d1dc14c..b29dacf 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -419,20 +419,6 @@ struct pktgen_thread {
 #define REMOVE 1
 #define FIND   0
 
-static inline ktime_t ktime_now(void)
-{
-	struct timespec ts;
-	ktime_get_ts(&ts);
-
-	return timespec_to_ktime(ts);
-}
-
-/* This works even if 32 bit because of careful byte order choice */
-static inline int ktime_lt(const ktime_t cmp1, const ktime_t cmp2)
-{
-	return cmp1.tv64 < cmp2.tv64;
-}
-
 static const char version[] =
 	"Packet Generator for packet performance testing. "
 	"Version: " VERSION "\n";
@@ -675,7 +661,7 @@ static int pktgen_if_show(struct seq_file *seq, void *v)
 	seq_puts(seq, "\n");
 
 	/* not really stopped, more like last-running-at */
-	stopped = pkt_dev->running ? ktime_now() : pkt_dev->stopped_at;
+	stopped = pkt_dev->running ? ktime_get() : pkt_dev->stopped_at;
 	idle = pkt_dev->idle_acc;
 	do_div(idle, NSEC_PER_USEC);
 
@@ -2141,12 +2127,12 @@ static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until)
 		return;
 	}
 
-	start_time = ktime_now();
+	start_time = ktime_get();
 	if (remaining < 100000) {
 		/* for small delays (<100us), just loop until limit is reached */
 		do {
-			end_time = ktime_now();
-		} while (ktime_lt(end_time, spin_until));
+			end_time = ktime_get();
+		} while (ktime_compare(end_time, spin_until) < 0);
 	} else {
 		/* see do_nanosleep */
 		hrtimer_init_sleeper(&t, current);
@@ -2162,7 +2148,7 @@ static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until)
 			hrtimer_cancel(&t.timer);
 		} while (t.task && pkt_dev->running && !signal_pending(current));
 		__set_current_state(TASK_RUNNING);
-		end_time = ktime_now();
+		end_time = ktime_get();
 	}
 
 	pkt_dev->idle_acc += ktime_to_ns(ktime_sub(end_time, start_time));
@@ -2427,11 +2413,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 		}
 	} else {		/* IPV6 * */
 
-		if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 &&
-		    pkt_dev->min_in6_daddr.s6_addr32[1] == 0 &&
-		    pkt_dev->min_in6_daddr.s6_addr32[2] == 0 &&
-		    pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ;
-		else {
+		if (!ipv6_addr_any(&pkt_dev->min_in6_daddr)) {
 			int i;
 
 			/* Only random destinations yet */
@@ -2916,8 +2898,7 @@ static void pktgen_run(struct pktgen_thread *t)
 			pktgen_clear_counters(pkt_dev);
 			pkt_dev->running = 1;	/* Cranke yeself! */
 			pkt_dev->skb = NULL;
-			pkt_dev->started_at =
-				pkt_dev->next_tx = ktime_now();
+			pkt_dev->started_at = pkt_dev->next_tx = ktime_get();
 
 			set_pkt_overhead(pkt_dev);
 
@@ -3076,7 +3057,7 @@ static int pktgen_stop_device(struct pktgen_dev *pkt_dev)
 
 	kfree_skb(pkt_dev->skb);
 	pkt_dev->skb = NULL;
-	pkt_dev->stopped_at = ktime_now();
+	pkt_dev->stopped_at = ktime_get();
 	pkt_dev->running = 0;
 
 	show_results(pkt_dev, nr_frags);
@@ -3095,7 +3076,7 @@ static struct pktgen_dev *next_to_run(struct pktgen_thread *t)
 			continue;
 		if (best == NULL)
 			best = pkt_dev;
-		else if (ktime_lt(pkt_dev->next_tx, best->next_tx))
+		else if (ktime_compare(pkt_dev->next_tx, best->next_tx) < 0)
 			best = pkt_dev;
 	}
 	if_unlock(t);
@@ -3180,14 +3161,14 @@ static void pktgen_rem_thread(struct pktgen_thread *t)
 
 static void pktgen_resched(struct pktgen_dev *pkt_dev)
 {
-	ktime_t idle_start = ktime_now();
+	ktime_t idle_start = ktime_get();
 	schedule();
-	pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start));
+	pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_get(), idle_start));
 }
 
 static void pktgen_wait_for_skb(struct pktgen_dev *pkt_dev)
 {
-	ktime_t idle_start = ktime_now();
+	ktime_t idle_start = ktime_get();
 
 	while (atomic_read(&(pkt_dev->skb->users)) != 1) {
 		if (signal_pending(current))
@@ -3198,7 +3179,7 @@ static void pktgen_wait_for_skb(struct pktgen_dev *pkt_dev)
 		else
 			cpu_relax();
 	}
-	pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start));
+	pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_get(), idle_start));
 }
 
 static void pktgen_xmit(struct pktgen_dev *pkt_dev)
@@ -3220,7 +3201,7 @@ static void pktgen_xmit(struct pktgen_dev *pkt_dev)
 	 * "never transmit"
 	 */
 	if (unlikely(pkt_dev->delay == ULLONG_MAX)) {
-		pkt_dev->next_tx = ktime_add_ns(ktime_now(), ULONG_MAX);
+		pkt_dev->next_tx = ktime_add_ns(ktime_get(), ULONG_MAX);
 		return;
 	}
 
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index fad649a..1868625 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -128,7 +128,7 @@ static rtnl_doit_func rtnl_get_doit(int protocol, int msgindex)
 	if (tab == NULL || tab[msgindex].doit == NULL)
 		tab = rtnl_msg_handlers[PF_UNSPEC];
 
-	return tab ? tab[msgindex].doit : NULL;
+	return tab[msgindex].doit;
 }
 
 static rtnl_dumpit_func rtnl_get_dumpit(int protocol, int msgindex)
@@ -143,7 +143,7 @@ static rtnl_dumpit_func rtnl_get_dumpit(int protocol, int msgindex)
 	if (tab == NULL || tab[msgindex].dumpit == NULL)
 		tab = rtnl_msg_handlers[PF_UNSPEC];
 
-	return tab ? tab[msgindex].dumpit : NULL;
+	return tab[msgindex].dumpit;
 }
 
 static rtnl_calcit_func rtnl_get_calcit(int protocol, int msgindex)
@@ -158,7 +158,7 @@ static rtnl_calcit_func rtnl_get_calcit(int protocol, int msgindex)
 	if (tab == NULL || tab[msgindex].calcit == NULL)
 		tab = rtnl_msg_handlers[PF_UNSPEC];
 
-	return tab ? tab[msgindex].calcit : NULL;
+	return tab[msgindex].calcit;
 }
 
 /**
@@ -1316,6 +1316,10 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
 			err = PTR_ERR(net);
 			goto errout;
 		}
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) {
+			err = -EPERM;
+			goto errout;
+		}
 		err = dev_change_net_namespace(dev, net, ifname);
 		put_net(net);
 		if (err)
@@ -1638,7 +1642,7 @@ int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm)
 }
 EXPORT_SYMBOL(rtnl_configure_link);
 
-struct net_device *rtnl_create_link(struct net *src_net, struct net *net,
+struct net_device *rtnl_create_link(struct net *net,
 	char *ifname, const struct rtnl_link_ops *ops, struct nlattr *tb[])
 {
 	int err;
@@ -1836,7 +1840,7 @@ replay:
 		if (IS_ERR(dest_net))
 			return PTR_ERR(dest_net);
 
-		dev = rtnl_create_link(net, dest_net, ifname, ops, tb);
+		dev = rtnl_create_link(dest_net, ifname, ops, tb);
 		if (IS_ERR(dev)) {
 			err = PTR_ERR(dev);
 			goto out;
@@ -2057,6 +2061,9 @@ static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 	u8 *addr;
 	int err;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, NULL);
 	if (err < 0)
 		return err;
@@ -2123,6 +2130,9 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 	int err = -EINVAL;
 	__u8 *addr;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (nlmsg_len(nlh) < sizeof(*ndm))
 		return -EINVAL;
 
@@ -2253,6 +2263,211 @@ static int rtnl_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb)
 	return skb->len;
 }
 
+int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
+			    struct net_device *dev, u16 mode)
+{
+	struct nlmsghdr *nlh;
+	struct ifinfomsg *ifm;
+	struct nlattr *br_afspec;
+	u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
+
+	nlh = nlmsg_put(skb, pid, seq, RTM_NEWLINK, sizeof(*ifm), NLM_F_MULTI);
+	if (nlh == NULL)
+		return -EMSGSIZE;
+
+	ifm = nlmsg_data(nlh);
+	ifm->ifi_family = AF_BRIDGE;
+	ifm->__ifi_pad = 0;
+	ifm->ifi_type = dev->type;
+	ifm->ifi_index = dev->ifindex;
+	ifm->ifi_flags = dev_get_flags(dev);
+	ifm->ifi_change = 0;
+
+
+	if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
+	    nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
+	    nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
+	    (dev->master &&
+	     nla_put_u32(skb, IFLA_MASTER, dev->master->ifindex)) ||
+	    (dev->addr_len &&
+	     nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
+	    (dev->ifindex != dev->iflink &&
+	     nla_put_u32(skb, IFLA_LINK, dev->iflink)))
+		goto nla_put_failure;
+
+	br_afspec = nla_nest_start(skb, IFLA_AF_SPEC);
+	if (!br_afspec)
+		goto nla_put_failure;
+
+	if (nla_put_u16(skb, IFLA_BRIDGE_FLAGS, BRIDGE_FLAGS_SELF) ||
+	    nla_put_u16(skb, IFLA_BRIDGE_MODE, mode)) {
+		nla_nest_cancel(skb, br_afspec);
+		goto nla_put_failure;
+	}
+	nla_nest_end(skb, br_afspec);
+
+	return nlmsg_end(skb, nlh);
+nla_put_failure:
+	nlmsg_cancel(skb, nlh);
+	return -EMSGSIZE;
+}
+EXPORT_SYMBOL(ndo_dflt_bridge_getlink);
+
+static int rtnl_bridge_getlink(struct sk_buff *skb, struct netlink_callback *cb)
+{
+	struct net *net = sock_net(skb->sk);
+	struct net_device *dev;
+	int idx = 0;
+	u32 portid = NETLINK_CB(cb->skb).portid;
+	u32 seq = cb->nlh->nlmsg_seq;
+
+	rcu_read_lock();
+	for_each_netdev_rcu(net, dev) {
+		const struct net_device_ops *ops = dev->netdev_ops;
+		struct net_device *master = dev->master;
+
+		if (master && master->netdev_ops->ndo_bridge_getlink) {
+			if (idx >= cb->args[0] &&
+			    master->netdev_ops->ndo_bridge_getlink(
+				    skb, portid, seq, dev) < 0)
+				break;
+			idx++;
+		}
+
+		if (ops->ndo_bridge_getlink) {
+			if (idx >= cb->args[0] &&
+			    ops->ndo_bridge_getlink(skb, portid, seq, dev) < 0)
+				break;
+			idx++;
+		}
+	}
+	rcu_read_unlock();
+	cb->args[0] = idx;
+
+	return skb->len;
+}
+
+static inline size_t bridge_nlmsg_size(void)
+{
+	return NLMSG_ALIGN(sizeof(struct ifinfomsg))
+		+ nla_total_size(IFNAMSIZ)	/* IFLA_IFNAME */
+		+ nla_total_size(MAX_ADDR_LEN)	/* IFLA_ADDRESS */
+		+ nla_total_size(sizeof(u32))	/* IFLA_MASTER */
+		+ nla_total_size(sizeof(u32))	/* IFLA_MTU */
+		+ nla_total_size(sizeof(u32))	/* IFLA_LINK */
+		+ nla_total_size(sizeof(u32))	/* IFLA_OPERSTATE */
+		+ nla_total_size(sizeof(u8))	/* IFLA_PROTINFO */
+		+ nla_total_size(sizeof(struct nlattr))	/* IFLA_AF_SPEC */
+		+ nla_total_size(sizeof(u16))	/* IFLA_BRIDGE_FLAGS */
+		+ nla_total_size(sizeof(u16));	/* IFLA_BRIDGE_MODE */
+}
+
+static int rtnl_bridge_notify(struct net_device *dev, u16 flags)
+{
+	struct net *net = dev_net(dev);
+	struct net_device *master = dev->master;
+	struct sk_buff *skb;
+	int err = -EOPNOTSUPP;
+
+	skb = nlmsg_new(bridge_nlmsg_size(), GFP_ATOMIC);
+	if (!skb) {
+		err = -ENOMEM;
+		goto errout;
+	}
+
+	if ((!flags || (flags & BRIDGE_FLAGS_MASTER)) &&
+	    master && master->netdev_ops->ndo_bridge_getlink) {
+		err = master->netdev_ops->ndo_bridge_getlink(skb, 0, 0, dev);
+		if (err < 0)
+			goto errout;
+	}
+
+	if ((flags & BRIDGE_FLAGS_SELF) &&
+	    dev->netdev_ops->ndo_bridge_getlink) {
+		err = dev->netdev_ops->ndo_bridge_getlink(skb, 0, 0, dev);
+		if (err < 0)
+			goto errout;
+	}
+
+	rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
+	return 0;
+errout:
+	WARN_ON(err == -EMSGSIZE);
+	kfree_skb(skb);
+	rtnl_set_sk_err(net, RTNLGRP_LINK, err);
+	return err;
+}
+
+static int rtnl_bridge_setlink(struct sk_buff *skb, struct nlmsghdr *nlh,
+			       void *arg)
+{
+	struct net *net = sock_net(skb->sk);
+	struct ifinfomsg *ifm;
+	struct net_device *dev;
+	struct nlattr *br_spec, *attr = NULL;
+	int rem, err = -EOPNOTSUPP;
+	u16 oflags, flags = 0;
+	bool have_flags = false;
+
+	if (nlmsg_len(nlh) < sizeof(*ifm))
+		return -EINVAL;
+
+	ifm = nlmsg_data(nlh);
+	if (ifm->ifi_family != AF_BRIDGE)
+		return -EPFNOSUPPORT;
+
+	dev = __dev_get_by_index(net, ifm->ifi_index);
+	if (!dev) {
+		pr_info("PF_BRIDGE: RTM_SETLINK with unknown ifindex\n");
+		return -ENODEV;
+	}
+
+	br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
+	if (br_spec) {
+		nla_for_each_nested(attr, br_spec, rem) {
+			if (nla_type(attr) == IFLA_BRIDGE_FLAGS) {
+				have_flags = true;
+				flags = nla_get_u16(attr);
+				break;
+			}
+		}
+	}
+
+	oflags = flags;
+
+	if (!flags || (flags & BRIDGE_FLAGS_MASTER)) {
+		if (!dev->master ||
+		    !dev->master->netdev_ops->ndo_bridge_setlink) {
+			err = -EOPNOTSUPP;
+			goto out;
+		}
+
+		err = dev->master->netdev_ops->ndo_bridge_setlink(dev, nlh);
+		if (err)
+			goto out;
+
+		flags &= ~BRIDGE_FLAGS_MASTER;
+	}
+
+	if ((flags & BRIDGE_FLAGS_SELF)) {
+		if (!dev->netdev_ops->ndo_bridge_setlink)
+			err = -EOPNOTSUPP;
+		else
+			err = dev->netdev_ops->ndo_bridge_setlink(dev, nlh);
+
+		if (!err)
+			flags &= ~BRIDGE_FLAGS_SELF;
+	}
+
+	if (have_flags)
+		memcpy(nla_data(attr), &flags, sizeof(flags));
+	/* Generate event to notify upper layer of bridge change */
+	if (!err)
+		err = rtnl_bridge_notify(dev, oflags);
+out:
+	return err;
+}
+
 /* Protected by RTNL sempahore.  */
 static struct rtattr **rta_buf;
 static int rtattr_max;
@@ -2283,7 +2498,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 	sz_idx = type>>2;
 	kind = type&3;
 
-	if (kind != 2 && !capable(CAP_NET_ADMIN))
+	if (kind != 2 && !ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	if (kind == 2 && nlh->nlmsg_flags&NLM_F_DUMP) {
@@ -2434,5 +2649,8 @@ void __init rtnetlink_init(void)
 	rtnl_register(PF_BRIDGE, RTM_NEWNEIGH, rtnl_fdb_add, NULL, NULL);
 	rtnl_register(PF_BRIDGE, RTM_DELNEIGH, rtnl_fdb_del, NULL, NULL);
 	rtnl_register(PF_BRIDGE, RTM_GETNEIGH, NULL, rtnl_fdb_dump, NULL);
+
+	rtnl_register(PF_BRIDGE, RTM_GETLINK, NULL, rtnl_bridge_getlink, NULL);
+	rtnl_register(PF_BRIDGE, RTM_SETLINK, rtnl_bridge_setlink, NULL, NULL);
 }
 
diff --git a/net/core/scm.c b/net/core/scm.c
index ab57084..57fb1ee 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -51,11 +51,11 @@ static __inline__ int scm_check_creds(struct ucred *creds)
 	if (!uid_valid(uid) || !gid_valid(gid))
 		return -EINVAL;
 
-	if ((creds->pid == task_tgid_vnr(current) || capable(CAP_SYS_ADMIN)) &&
+	if ((creds->pid == task_tgid_vnr(current) || nsown_capable(CAP_SYS_ADMIN)) &&
 	    ((uid_eq(uid, cred->uid)   || uid_eq(uid, cred->euid) ||
-	      uid_eq(uid, cred->suid)) || capable(CAP_SETUID)) &&
+	      uid_eq(uid, cred->suid)) || nsown_capable(CAP_SETUID)) &&
 	    ((gid_eq(gid, cred->gid)   || gid_eq(gid, cred->egid) ||
-	      gid_eq(gid, cred->sgid)) || capable(CAP_SETGID))) {
+	      gid_eq(gid, cred->sgid)) || nsown_capable(CAP_SETGID))) {
 	       return 0;
 	}
 	return -EPERM;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 3f0636c..3ab989b 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -519,7 +519,7 @@ static void skb_release_data(struct sk_buff *skb)
 
 			uarg = skb_shinfo(skb)->destructor_arg;
 			if (uarg->callback)
-				uarg->callback(uarg);
+				uarg->callback(uarg, true);
 		}
 
 		if (skb_has_frag_list(skb))
@@ -635,6 +635,26 @@ void kfree_skb(struct sk_buff *skb)
 EXPORT_SYMBOL(kfree_skb);
 
 /**
+ *	skb_tx_error - report an sk_buff xmit error
+ *	@skb: buffer that triggered an error
+ *
+ *	Report xmit error if a device callback is tracking this skb.
+ *	skb must be freed afterwards.
+ */
+void skb_tx_error(struct sk_buff *skb)
+{
+	if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
+		struct ubuf_info *uarg;
+
+		uarg = skb_shinfo(skb)->destructor_arg;
+		if (uarg->callback)
+			uarg->callback(uarg, false);
+		skb_shinfo(skb)->tx_flags &= ~SKBTX_DEV_ZEROCOPY;
+	}
+}
+EXPORT_SYMBOL(skb_tx_error);
+
+/**
  *	consume_skb - free an skbuff
  *	@skb: buffer to free
  *
@@ -662,11 +682,14 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->transport_header	= old->transport_header;
 	new->network_header	= old->network_header;
 	new->mac_header		= old->mac_header;
+	new->inner_transport_header = old->inner_transport_header;
+	new->inner_network_header = old->inner_transport_header;
 	skb_dst_copy(new, old);
 	new->rxhash		= old->rxhash;
 	new->ooo_okay		= old->ooo_okay;
 	new->l4_rxhash		= old->l4_rxhash;
 	new->no_fcs		= old->no_fcs;
+	new->encapsulation	= old->encapsulation;
 #ifdef CONFIG_XFRM
 	new->sp			= secpath_get(old->sp);
 #endif
@@ -797,7 +820,7 @@ int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask)
 	for (i = 0; i < num_frags; i++)
 		skb_frag_unref(skb, i);
 
-	uarg->callback(uarg);
+	uarg->callback(uarg, false);
 
 	/* skb frags point to kernel buffers */
 	for (i = num_frags - 1; i >= 0; i--) {
@@ -872,6 +895,8 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->network_header   += offset;
 	if (skb_mac_header_was_set(new))
 		new->mac_header	      += offset;
+	new->inner_transport_header += offset;
+	new->inner_network_header   += offset;
 #endif
 	skb_shinfo(new)->gso_size = skb_shinfo(old)->gso_size;
 	skb_shinfo(new)->gso_segs = skb_shinfo(old)->gso_segs;
@@ -1069,6 +1094,8 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
 	skb->network_header   += off;
 	if (skb_mac_header_was_set(skb))
 		skb->mac_header += off;
+	skb->inner_transport_header += off;
+	skb->inner_network_header += off;
 	/* Only adjust this if it actually is csum_start rather than csum */
 	if (skb->ip_summed == CHECKSUM_PARTIAL)
 		skb->csum_start += nhead;
@@ -1168,6 +1195,8 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
 	n->network_header   += off;
 	if (skb_mac_header_was_set(skb))
 		n->mac_header += off;
+	n->inner_transport_header += off;
+	n->inner_network_header	   += off;
 #endif
 
 	return n;
@@ -2999,7 +3028,6 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 	memcpy(skb_mac_header(nskb), skb_mac_header(p),
 	       p->data - skb_mac_header(p));
 
-	*NAPI_GRO_CB(nskb) = *NAPI_GRO_CB(p);
 	skb_shinfo(nskb)->frag_list = p;
 	skb_shinfo(nskb)->gso_size = pinfo->gso_size;
 	pinfo->gso_size = 0;
diff --git a/net/core/sock.c b/net/core/sock.c
index 8a146cf..a692ef4 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -505,7 +505,8 @@ struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie)
 }
 EXPORT_SYMBOL(sk_dst_check);
 
-static int sock_bindtodevice(struct sock *sk, char __user *optval, int optlen)
+static int sock_setbindtodevice(struct sock *sk, char __user *optval,
+				int optlen)
 {
 	int ret = -ENOPROTOOPT;
 #ifdef CONFIG_NETDEVICES
@@ -515,7 +516,7 @@ static int sock_bindtodevice(struct sock *sk, char __user *optval, int optlen)
 
 	/* Sorry... */
 	ret = -EPERM;
-	if (!capable(CAP_NET_RAW))
+	if (!ns_capable(net->user_ns, CAP_NET_RAW))
 		goto out;
 
 	ret = -EINVAL;
@@ -562,6 +563,59 @@ out:
 	return ret;
 }
 
+static int sock_getbindtodevice(struct sock *sk, char __user *optval,
+				int __user *optlen, int len)
+{
+	int ret = -ENOPROTOOPT;
+#ifdef CONFIG_NETDEVICES
+	struct net *net = sock_net(sk);
+	struct net_device *dev;
+	char devname[IFNAMSIZ];
+	unsigned seq;
+
+	if (sk->sk_bound_dev_if == 0) {
+		len = 0;
+		goto zero;
+	}
+
+	ret = -EINVAL;
+	if (len < IFNAMSIZ)
+		goto out;
+
+retry:
+	seq = read_seqbegin(&devnet_rename_seq);
+	rcu_read_lock();
+	dev = dev_get_by_index_rcu(net, sk->sk_bound_dev_if);
+	ret = -ENODEV;
+	if (!dev) {
+		rcu_read_unlock();
+		goto out;
+	}
+
+	strcpy(devname, dev->name);
+	rcu_read_unlock();
+	if (read_seqretry(&devnet_rename_seq, seq))
+		goto retry;
+
+	len = strlen(devname) + 1;
+
+	ret = -EFAULT;
+	if (copy_to_user(optval, devname, len))
+		goto out;
+
+zero:
+	ret = -EFAULT;
+	if (put_user(len, optlen))
+		goto out;
+
+	ret = 0;
+
+out:
+#endif
+
+	return ret;
+}
+
 static inline void sock_valbool_flag(struct sock *sk, int bit, int valbool)
 {
 	if (valbool)
@@ -589,7 +643,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 	 */
 
 	if (optname == SO_BINDTODEVICE)
-		return sock_bindtodevice(sk, optval, optlen);
+		return sock_setbindtodevice(sk, optval, optlen);
 
 	if (optlen < sizeof(int))
 		return -EINVAL;
@@ -696,7 +750,8 @@ set_rcvbuf:
 		break;
 
 	case SO_PRIORITY:
-		if ((val >= 0 && val <= 6) || capable(CAP_NET_ADMIN))
+		if ((val >= 0 && val <= 6) ||
+		    ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 			sk->sk_priority = val;
 		else
 			ret = -EPERM;
@@ -813,7 +868,7 @@ set_rcvbuf:
 			clear_bit(SOCK_PASSSEC, &sock->flags);
 		break;
 	case SO_MARK:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 			ret = -EPERM;
 		else
 			sk->sk_mark = val;
@@ -1074,6 +1129,17 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 	case SO_NOFCS:
 		v.val = sock_flag(sk, SOCK_NOFCS);
 		break;
+
+	case SO_BINDTODEVICE:
+		return sock_getbindtodevice(sk, optval, optlen, len);
+
+	case SO_GET_FILTER:
+		len = sk_get_filter(sk, (struct sock_filter __user *)optval, len);
+		if (len < 0)
+			return len;
+
+		goto lenout;
+
 	default:
 		return -ENOPROTOOPT;
 	}
@@ -1214,13 +1280,11 @@ static void sk_prot_free(struct proto *prot, struct sock *sk)
 
 #ifdef CONFIG_CGROUPS
 #if IS_ENABLED(CONFIG_NET_CLS_CGROUP)
-void sock_update_classid(struct sock *sk)
+void sock_update_classid(struct sock *sk, struct task_struct *task)
 {
 	u32 classid;
 
-	rcu_read_lock();  /* doing current task, which cannot vanish. */
-	classid = task_cls_classid(current);
-	rcu_read_unlock();
+	classid = task_cls_classid(task);
 	if (classid != sk->sk_classid)
 		sk->sk_classid = classid;
 }
@@ -1263,7 +1327,7 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
 		sock_net_set(sk, get_net(net));
 		atomic_set(&sk->sk_wmem_alloc, 1);
 
-		sock_update_classid(sk);
+		sock_update_classid(sk, current);
 		sock_update_netprioidx(sk, current);
 	}
 
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index a7c3684..d1b0804 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -216,6 +216,11 @@ static __net_init int sysctl_core_net_init(struct net *net)
 			goto err_dup;
 
 		tbl[0].data = &net->core.sysctl_somaxconn;
+
+		/* Don't export any sysctls to unprivileged users */
+		if (net->user_ns != &init_user_ns) {
+			tbl[0].procname = NULL;
+		}
 	}
 
 	net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index 70989e6..1b588e2 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -1662,8 +1662,8 @@ static int dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 	struct nlmsghdr *reply_nlh = NULL;
 	const struct reply_func *fn;
 
-	if (!net_eq(net, &init_net))
-		return -EINVAL;
+	if ((nlh->nlmsg_type == RTM_SETDCB) && !capable(CAP_NET_ADMIN))
+		return -EPERM;
 
 	ret = nlmsg_parse(nlh, sizeof(*dcb), tb, DCB_ATTR_MAX,
 			  dcbnl_rtnl_policy);
@@ -1681,7 +1681,7 @@ static int dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 	if (!tb[DCB_ATTR_IFNAME])
 		return -EINVAL;
 
-	netdev = dev_get_by_name(&init_net, nla_data(tb[DCB_ATTR_IFNAME]));
+	netdev = dev_get_by_name(net, nla_data(tb[DCB_ATTR_IFNAME]));
 	if (!netdev)
 		return -ENODEV;
 
@@ -1705,7 +1705,7 @@ static int dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 
 	nlmsg_end(reply_skb, reply_nlh);
 
-	ret = rtnl_unicast(reply_skb, &init_net, portid);
+	ret = rtnl_unicast(reply_skb, net, portid);
 out:
 	dev_put(netdev);
 	return ret;
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index ea850ce..662071b 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -174,8 +174,7 @@ struct sock *dccp_check_req(struct sock *sk, struct sk_buff *skb,
 			 * To protect against Request floods, increment retrans
 			 * counter (backoff, monitored by dccp_response_timer).
 			 */
-			req->retrans++;
-			req->rsk_ops->rtx_syn_ack(sk, req, NULL);
+			inet_rtx_syn_ack(sk, req);
 		}
 		/* Network Duplicate, discard packet */
 		return NULL;
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 7b7e561..e47ba9f 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -573,6 +573,9 @@ static int dn_nl_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 	struct dn_ifaddr __rcu **ifap;
 	int err = -EINVAL;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (!net_eq(net, &init_net))
 		goto errout;
 
@@ -614,6 +617,9 @@ static int dn_nl_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 	struct dn_ifaddr *ifa;
 	int err;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (!net_eq(net, &init_net))
 		return -EINVAL;
 
diff --git a/net/decnet/dn_fib.c b/net/decnet/dn_fib.c
index 102d610..e36614e 100644
--- a/net/decnet/dn_fib.c
+++ b/net/decnet/dn_fib.c
@@ -520,6 +520,9 @@ static int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *
 	struct rtattr **rta = arg;
 	struct rtmsg *r = NLMSG_DATA(nlh);
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (!net_eq(net, &init_net))
 		return -EINVAL;
 
@@ -540,6 +543,9 @@ static int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *
 	struct rtattr **rta = arg;
 	struct rtmsg *r = NLMSG_DATA(nlh);
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (!net_eq(net, &init_net))
 		return -EINVAL;
 
diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig
index 274791c..f5eede1 100644
--- a/net/dsa/Kconfig
+++ b/net/dsa/Kconfig
@@ -1,26 +1,24 @@
+config HAVE_NET_DSA
+	def_bool y
+	depends on NETDEVICES && !S390
+
+# Drivers must select NET_DSA and the appropriate tagging format
+
 config NET_DSA
-	tristate "Distributed Switch Architecture support"
-	default n
-	depends on EXPERIMENTAL && NETDEVICES && !S390
+	tristate
+	depends on HAVE_NET_DSA
 	select PHYLIB
-	---help---
-	  This allows you to use hardware switch chips that use
-	  the Distributed Switch Architecture.
-
 
 if NET_DSA
 
 # tagging formats
 config NET_DSA_TAG_DSA
 	bool
-	default n
 
 config NET_DSA_TAG_EDSA
 	bool
-	default n
 
 config NET_DSA_TAG_TRAILER
 	bool
-	default n
 
 endif
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 6d42c17..f651da6 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1047,7 +1047,8 @@ static netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *dev)
 		goto error;
 	}
 
-	if (skb->len <= IEEE802154_MTU) {
+	/* Send directly if less than the MTU minus the 2 checksum bytes. */
+	if (skb->len <= IEEE802154_MTU - IEEE802154_MFR_SIZE) {
 		err = dev_queue_xmit(skb);
 		goto out;
 	}
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 766c596..24b384b 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -346,7 +346,8 @@ lookup_protocol:
 	}
 
 	err = -EPERM;
-	if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW))
+	if (sock->type == SOCK_RAW && !kern &&
+	    !ns_capable(net->user_ns, CAP_NET_RAW))
 		goto out_rcu_unlock;
 
 	err = -EAFNOSUPPORT;
@@ -473,6 +474,7 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 	struct sockaddr_in *addr = (struct sockaddr_in *)uaddr;
 	struct sock *sk = sock->sk;
 	struct inet_sock *inet = inet_sk(sk);
+	struct net *net = sock_net(sk);
 	unsigned short snum;
 	int chk_addr_ret;
 	int err;
@@ -496,7 +498,7 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 			goto out;
 	}
 
-	chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);
+	chk_addr_ret = inet_addr_type(net, addr->sin_addr.s_addr);
 
 	/* Not specified by any standard per-se, however it breaks too
 	 * many applications when removed.  It is unfortunate since
@@ -516,7 +518,8 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 
 	snum = ntohs(addr->sin_port);
 	err = -EACCES;
-	if (snum && snum < PROT_SOCK && !capable(CAP_NET_BIND_SERVICE))
+	if (snum && snum < PROT_SOCK &&
+	    !ns_capable(net->user_ns, CAP_NET_BIND_SERVICE))
 		goto out;
 
 	/*      We keep a pair of addresses. rcv_saddr is the one
@@ -1251,7 +1254,7 @@ EXPORT_SYMBOL(inet_sk_rebuild_header);
 
 static int inet_gso_send_check(struct sk_buff *skb)
 {
-	const struct net_protocol *ops;
+	const struct net_offload *ops;
 	const struct iphdr *iph;
 	int proto;
 	int ihl;
@@ -1275,9 +1278,9 @@ static int inet_gso_send_check(struct sk_buff *skb)
 	err = -EPROTONOSUPPORT;
 
 	rcu_read_lock();
-	ops = rcu_dereference(inet_protos[proto]);
-	if (likely(ops && ops->gso_send_check))
-		err = ops->gso_send_check(skb);
+	ops = rcu_dereference(inet_offloads[proto]);
+	if (likely(ops && ops->callbacks.gso_send_check))
+		err = ops->callbacks.gso_send_check(skb);
 	rcu_read_unlock();
 
 out:
@@ -1288,7 +1291,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 	netdev_features_t features)
 {
 	struct sk_buff *segs = ERR_PTR(-EINVAL);
-	const struct net_protocol *ops;
+	const struct net_offload *ops;
 	struct iphdr *iph;
 	int proto;
 	int ihl;
@@ -1325,9 +1328,9 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 	segs = ERR_PTR(-EPROTONOSUPPORT);
 
 	rcu_read_lock();
-	ops = rcu_dereference(inet_protos[proto]);
-	if (likely(ops && ops->gso_segment))
-		segs = ops->gso_segment(skb, features);
+	ops = rcu_dereference(inet_offloads[proto]);
+	if (likely(ops && ops->callbacks.gso_segment))
+		segs = ops->callbacks.gso_segment(skb, features);
 	rcu_read_unlock();
 
 	if (!segs || IS_ERR(segs))
@@ -1356,7 +1359,7 @@ out:
 static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 					 struct sk_buff *skb)
 {
-	const struct net_protocol *ops;
+	const struct net_offload *ops;
 	struct sk_buff **pp = NULL;
 	struct sk_buff *p;
 	const struct iphdr *iph;
@@ -1378,8 +1381,8 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 	proto = iph->protocol;
 
 	rcu_read_lock();
-	ops = rcu_dereference(inet_protos[proto]);
-	if (!ops || !ops->gro_receive)
+	ops = rcu_dereference(inet_offloads[proto]);
+	if (!ops || !ops->callbacks.gro_receive)
 		goto out_unlock;
 
 	if (*(u8 *)iph != 0x45)
@@ -1420,7 +1423,7 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 	skb_gro_pull(skb, sizeof(*iph));
 	skb_set_transport_header(skb, skb_gro_offset(skb));
 
-	pp = ops->gro_receive(head, skb);
+	pp = ops->callbacks.gro_receive(head, skb);
 
 out_unlock:
 	rcu_read_unlock();
@@ -1435,7 +1438,7 @@ static int inet_gro_complete(struct sk_buff *skb)
 {
 	__be16 newlen = htons(skb->len - skb_network_offset(skb));
 	struct iphdr *iph = ip_hdr(skb);
-	const struct net_protocol *ops;
+	const struct net_offload *ops;
 	int proto = iph->protocol;
 	int err = -ENOSYS;
 
@@ -1443,11 +1446,11 @@ static int inet_gro_complete(struct sk_buff *skb)
 	iph->tot_len = newlen;
 
 	rcu_read_lock();
-	ops = rcu_dereference(inet_protos[proto]);
-	if (WARN_ON(!ops || !ops->gro_complete))
+	ops = rcu_dereference(inet_offloads[proto]);
+	if (WARN_ON(!ops || !ops->callbacks.gro_complete))
 		goto out_unlock;
 
-	err = ops->gro_complete(skb);
+	err = ops->callbacks.gro_complete(skb);
 
 out_unlock:
 	rcu_read_unlock();
@@ -1558,23 +1561,33 @@ static const struct net_protocol tcp_protocol = {
 	.early_demux	=	tcp_v4_early_demux,
 	.handler	=	tcp_v4_rcv,
 	.err_handler	=	tcp_v4_err,
-	.gso_send_check	=	tcp_v4_gso_send_check,
-	.gso_segment	=	tcp_tso_segment,
-	.gro_receive	=	tcp4_gro_receive,
-	.gro_complete	=	tcp4_gro_complete,
 	.no_policy	=	1,
 	.netns_ok	=	1,
 };
 
+static const struct net_offload tcp_offload = {
+	.callbacks = {
+		.gso_send_check	=	tcp_v4_gso_send_check,
+		.gso_segment	=	tcp_tso_segment,
+		.gro_receive	=	tcp4_gro_receive,
+		.gro_complete	=	tcp4_gro_complete,
+	},
+};
+
 static const struct net_protocol udp_protocol = {
 	.handler =	udp_rcv,
 	.err_handler =	udp_err,
-	.gso_send_check = udp4_ufo_send_check,
-	.gso_segment = udp4_ufo_fragment,
 	.no_policy =	1,
 	.netns_ok =	1,
 };
 
+static const struct net_offload udp_offload = {
+	.callbacks = {
+		.gso_send_check = udp4_ufo_send_check,
+		.gso_segment = udp4_ufo_fragment,
+	},
+};
+
 static const struct net_protocol icmp_protocol = {
 	.handler =	icmp_rcv,
 	.err_handler =	ping_err,
@@ -1659,13 +1672,35 @@ static int ipv4_proc_init(void);
  *	IP protocol layer initialiser
  */
 
+static struct packet_offload ip_packet_offload __read_mostly = {
+	.type = cpu_to_be16(ETH_P_IP),
+	.callbacks = {
+		.gso_send_check = inet_gso_send_check,
+		.gso_segment = inet_gso_segment,
+		.gro_receive = inet_gro_receive,
+		.gro_complete = inet_gro_complete,
+	},
+};
+
+static int __init ipv4_offload_init(void)
+{
+	/*
+	 * Add offloads
+	 */
+	if (inet_add_offload(&udp_offload, IPPROTO_UDP) < 0)
+		pr_crit("%s: Cannot add UDP protocol offload\n", __func__);
+	if (inet_add_offload(&tcp_offload, IPPROTO_TCP) < 0)
+		pr_crit("%s: Cannot add TCP protocol offlaod\n", __func__);
+
+	dev_add_offload(&ip_packet_offload);
+	return 0;
+}
+
+fs_initcall(ipv4_offload_init);
+
 static struct packet_type ip_packet_type __read_mostly = {
 	.type = cpu_to_be16(ETH_P_IP),
 	.func = ip_rcv,
-	.gso_send_check = inet_gso_send_check,
-	.gso_segment = inet_gso_segment,
-	.gro_receive = inet_gro_receive,
-	.gro_complete = inet_gro_complete,
 };
 
 static int __init inet_init(void)
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 4780045..ce6fbdf 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -1161,7 +1161,7 @@ int arp_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 	switch (cmd) {
 	case SIOCDARP:
 	case SIOCSARP:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 	case SIOCGARP:
 		err = copy_from_user(&r, arg, sizeof(struct arpreq));
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 2a6abc1..cc06a47 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -55,6 +55,7 @@
 #include <linux/sysctl.h>
 #endif
 #include <linux/kmod.h>
+#include <linux/netconf.h>
 
 #include <net/arp.h>
 #include <net/ip.h>
@@ -723,7 +724,7 @@ int devinet_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 
 	case SIOCSIFFLAGS:
 		ret = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto out;
 		break;
 	case SIOCSIFADDR:	/* Set interface address (and family) */
@@ -731,7 +732,7 @@ int devinet_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 	case SIOCSIFDSTADDR:	/* Set the destination address */
 	case SIOCSIFNETMASK: 	/* Set the netmask for the interface */
 		ret = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto out;
 		ret = -EINVAL;
 		if (sin->sin_family != AF_INET)
@@ -1442,6 +1443,155 @@ static int inet_set_link_af(struct net_device *dev, const struct nlattr *nla)
 	return 0;
 }
 
+static int inet_netconf_msgsize_devconf(int type)
+{
+	int size = NLMSG_ALIGN(sizeof(struct netconfmsg))
+		   + nla_total_size(4);	/* NETCONFA_IFINDEX */
+
+	/* type -1 is used for ALL */
+	if (type == -1 || type == NETCONFA_FORWARDING)
+		size += nla_total_size(4);
+	if (type == -1 || type == NETCONFA_RP_FILTER)
+		size += nla_total_size(4);
+	if (type == -1 || type == NETCONFA_MC_FORWARDING)
+		size += nla_total_size(4);
+
+	return size;
+}
+
+static int inet_netconf_fill_devconf(struct sk_buff *skb, int ifindex,
+				     struct ipv4_devconf *devconf, u32 portid,
+				     u32 seq, int event, unsigned int flags,
+				     int type)
+{
+	struct nlmsghdr  *nlh;
+	struct netconfmsg *ncm;
+
+	nlh = nlmsg_put(skb, portid, seq, event, sizeof(struct netconfmsg),
+			flags);
+	if (nlh == NULL)
+		return -EMSGSIZE;
+
+	ncm = nlmsg_data(nlh);
+	ncm->ncm_family = AF_INET;
+
+	if (nla_put_s32(skb, NETCONFA_IFINDEX, ifindex) < 0)
+		goto nla_put_failure;
+
+	/* type -1 is used for ALL */
+	if ((type == -1 || type == NETCONFA_FORWARDING) &&
+	    nla_put_s32(skb, NETCONFA_FORWARDING,
+			IPV4_DEVCONF(*devconf, FORWARDING)) < 0)
+		goto nla_put_failure;
+	if ((type == -1 || type == NETCONFA_RP_FILTER) &&
+	    nla_put_s32(skb, NETCONFA_RP_FILTER,
+			IPV4_DEVCONF(*devconf, RP_FILTER)) < 0)
+		goto nla_put_failure;
+	if ((type == -1 || type == NETCONFA_MC_FORWARDING) &&
+	    nla_put_s32(skb, NETCONFA_MC_FORWARDING,
+			IPV4_DEVCONF(*devconf, MC_FORWARDING)) < 0)
+		goto nla_put_failure;
+
+	return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+	nlmsg_cancel(skb, nlh);
+	return -EMSGSIZE;
+}
+
+void inet_netconf_notify_devconf(struct net *net, int type, int ifindex,
+				 struct ipv4_devconf *devconf)
+{
+	struct sk_buff *skb;
+	int err = -ENOBUFS;
+
+	skb = nlmsg_new(inet_netconf_msgsize_devconf(type), GFP_ATOMIC);
+	if (skb == NULL)
+		goto errout;
+
+	err = inet_netconf_fill_devconf(skb, ifindex, devconf, 0, 0,
+					RTM_NEWNETCONF, 0, type);
+	if (err < 0) {
+		/* -EMSGSIZE implies BUG in inet_netconf_msgsize_devconf() */
+		WARN_ON(err == -EMSGSIZE);
+		kfree_skb(skb);
+		goto errout;
+	}
+	rtnl_notify(skb, net, 0, RTNLGRP_IPV4_NETCONF, NULL, GFP_ATOMIC);
+	return;
+errout:
+	if (err < 0)
+		rtnl_set_sk_err(net, RTNLGRP_IPV4_NETCONF, err);
+}
+
+static const struct nla_policy devconf_ipv4_policy[NETCONFA_MAX+1] = {
+	[NETCONFA_IFINDEX]	= { .len = sizeof(int) },
+	[NETCONFA_FORWARDING]	= { .len = sizeof(int) },
+	[NETCONFA_RP_FILTER]	= { .len = sizeof(int) },
+};
+
+static int inet_netconf_get_devconf(struct sk_buff *in_skb,
+				    struct nlmsghdr *nlh,
+				    void *arg)
+{
+	struct net *net = sock_net(in_skb->sk);
+	struct nlattr *tb[NETCONFA_MAX+1];
+	struct netconfmsg *ncm;
+	struct sk_buff *skb;
+	struct ipv4_devconf *devconf;
+	struct in_device *in_dev;
+	struct net_device *dev;
+	int ifindex;
+	int err;
+
+	err = nlmsg_parse(nlh, sizeof(*ncm), tb, NETCONFA_MAX,
+			  devconf_ipv4_policy);
+	if (err < 0)
+		goto errout;
+
+	err = EINVAL;
+	if (!tb[NETCONFA_IFINDEX])
+		goto errout;
+
+	ifindex = nla_get_s32(tb[NETCONFA_IFINDEX]);
+	switch (ifindex) {
+	case NETCONFA_IFINDEX_ALL:
+		devconf = net->ipv4.devconf_all;
+		break;
+	case NETCONFA_IFINDEX_DEFAULT:
+		devconf = net->ipv4.devconf_dflt;
+		break;
+	default:
+		dev = __dev_get_by_index(net, ifindex);
+		if (dev == NULL)
+			goto errout;
+		in_dev = __in_dev_get_rtnl(dev);
+		if (in_dev == NULL)
+			goto errout;
+		devconf = &in_dev->cnf;
+		break;
+	}
+
+	err = -ENOBUFS;
+	skb = nlmsg_new(inet_netconf_msgsize_devconf(-1), GFP_ATOMIC);
+	if (skb == NULL)
+		goto errout;
+
+	err = inet_netconf_fill_devconf(skb, ifindex, devconf,
+					NETLINK_CB(in_skb).portid,
+					nlh->nlmsg_seq, RTM_NEWNETCONF, 0,
+					-1);
+	if (err < 0) {
+		/* -EMSGSIZE implies BUG in inet_netconf_msgsize_devconf() */
+		WARN_ON(err == -EMSGSIZE);
+		kfree_skb(skb);
+		goto errout;
+	}
+	err = rtnl_unicast(skb, net, NETLINK_CB(in_skb).portid);
+errout:
+	return err;
+}
+
 #ifdef CONFIG_SYSCTL
 
 static void devinet_copy_dflt_conf(struct net *net, int i)
@@ -1467,6 +1617,12 @@ static void inet_forward_change(struct net *net)
 
 	IPV4_DEVCONF_ALL(net, ACCEPT_REDIRECTS) = !on;
 	IPV4_DEVCONF_DFLT(net, FORWARDING) = on;
+	inet_netconf_notify_devconf(net, NETCONFA_FORWARDING,
+				    NETCONFA_IFINDEX_ALL,
+				    net->ipv4.devconf_all);
+	inet_netconf_notify_devconf(net, NETCONFA_FORWARDING,
+				    NETCONFA_IFINDEX_DEFAULT,
+				    net->ipv4.devconf_dflt);
 
 	for_each_netdev(net, dev) {
 		struct in_device *in_dev;
@@ -1474,8 +1630,11 @@ static void inet_forward_change(struct net *net)
 			dev_disable_lro(dev);
 		rcu_read_lock();
 		in_dev = __in_dev_get_rcu(dev);
-		if (in_dev)
+		if (in_dev) {
 			IN_DEV_CONF_SET(in_dev, FORWARDING, on);
+			inet_netconf_notify_devconf(net, NETCONFA_FORWARDING,
+						    dev->ifindex, &in_dev->cnf);
+		}
 		rcu_read_unlock();
 	}
 }
@@ -1501,6 +1660,23 @@ static int devinet_conf_proc(ctl_table *ctl, int write,
 		    i == IPV4_DEVCONF_ROUTE_LOCALNET - 1)
 			if ((new_value == 0) && (old_value != 0))
 				rt_cache_flush(net);
+		if (i == IPV4_DEVCONF_RP_FILTER - 1 &&
+		    new_value != old_value) {
+			int ifindex;
+
+			if (cnf == net->ipv4.devconf_dflt)
+				ifindex = NETCONFA_IFINDEX_DEFAULT;
+			else if (cnf == net->ipv4.devconf_all)
+				ifindex = NETCONFA_IFINDEX_ALL;
+			else {
+				struct in_device *idev =
+					container_of(cnf, struct in_device,
+						     cnf);
+				ifindex = idev->dev->ifindex;
+			}
+			inet_netconf_notify_devconf(net, NETCONFA_RP_FILTER,
+						    ifindex, cnf);
+		}
 	}
 
 	return ret;
@@ -1527,15 +1703,23 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write,
 			}
 			if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING)) {
 				inet_forward_change(net);
-			} else if (*valp) {
+			} else {
 				struct ipv4_devconf *cnf = ctl->extra1;
 				struct in_device *idev =
 					container_of(cnf, struct in_device, cnf);
-				dev_disable_lro(idev->dev);
+				if (*valp)
+					dev_disable_lro(idev->dev);
+				inet_netconf_notify_devconf(net,
+							    NETCONFA_FORWARDING,
+							    idev->dev->ifindex,
+							    cnf);
 			}
 			rtnl_unlock();
 			rt_cache_flush(net);
-		}
+		} else
+			inet_netconf_notify_devconf(net, NETCONFA_FORWARDING,
+						    NETCONFA_IFINDEX_DEFAULT,
+						    net->ipv4.devconf_dflt);
 	}
 
 	return ret;
@@ -1809,5 +1993,7 @@ void __init devinet_init(void)
 	rtnl_register(PF_INET, RTM_NEWADDR, inet_rtm_newaddr, NULL, NULL);
 	rtnl_register(PF_INET, RTM_DELADDR, inet_rtm_deladdr, NULL, NULL);
 	rtnl_register(PF_INET, RTM_GETADDR, NULL, inet_dump_ifaddr, NULL);
+	rtnl_register(PF_INET, RTM_GETNETCONF, inet_netconf_get_devconf,
+		      NULL, NULL);
 }
 
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 825c608..5cd75e2 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -488,7 +488,7 @@ int ip_rt_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 	switch (cmd) {
 	case SIOCADDRT:		/* Add a route */
 	case SIOCDELRT:		/* Delete a route */
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 
 		if (copy_from_user(&rt, arg, sizeof(rt)))
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 71b125c..4797a80 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -803,7 +803,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
 		unsigned int bytes;
 
 		if (!new_size)
-			new_size = 1;
+			new_size = 16;
 		bytes = new_size * sizeof(struct hlist_head *);
 		new_info_hash = fib_info_hash_alloc(bytes);
 		new_laddrhash = fib_info_hash_alloc(bytes);
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index d34ce29..2026542 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -521,21 +521,31 @@ static inline void syn_ack_recalc(struct request_sock *req, const int thresh,
 				  int *expire, int *resend)
 {
 	if (!rskq_defer_accept) {
-		*expire = req->retrans >= thresh;
+		*expire = req->num_timeout >= thresh;
 		*resend = 1;
 		return;
 	}
-	*expire = req->retrans >= thresh &&
-		  (!inet_rsk(req)->acked || req->retrans >= max_retries);
+	*expire = req->num_timeout >= thresh &&
+		  (!inet_rsk(req)->acked || req->num_timeout >= max_retries);
 	/*
 	 * Do not resend while waiting for data after ACK,
 	 * start to resend on end of deferring period to give
 	 * last chance for data or ACK to create established socket.
 	 */
 	*resend = !inet_rsk(req)->acked ||
-		  req->retrans >= rskq_defer_accept - 1;
+		  req->num_timeout >= rskq_defer_accept - 1;
 }
 
+int inet_rtx_syn_ack(struct sock *parent, struct request_sock *req)
+{
+	int err = req->rsk_ops->rtx_syn_ack(parent, req, NULL);
+
+	if (!err)
+		req->num_retrans++;
+	return err;
+}
+EXPORT_SYMBOL(inet_rtx_syn_ack);
+
 void inet_csk_reqsk_queue_prune(struct sock *parent,
 				const unsigned long interval,
 				const unsigned long timeout,
@@ -599,13 +609,14 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
 				req->rsk_ops->syn_ack_timeout(parent, req);
 				if (!expire &&
 				    (!resend ||
-				     !req->rsk_ops->rtx_syn_ack(parent, req, NULL) ||
+				     !inet_rtx_syn_ack(parent, req) ||
 				     inet_rsk(req)->acked)) {
 					unsigned long timeo;
 
-					if (req->retrans++ == 0)
+					if (req->num_timeout++ == 0)
 						lopt->qlen_young--;
-					timeo = min((timeout << req->retrans), max_rto);
+					timeo = min(timeout << req->num_timeout,
+						    max_rto);
 					req->expires = now + timeo;
 					reqp = &req->dl_next;
 					continue;
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index e23e16d..7afa2c3 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -109,6 +109,9 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
 	r->id.idiag_src[0] = inet->inet_rcv_saddr;
 	r->id.idiag_dst[0] = inet->inet_daddr;
 
+	if (nla_put_u8(skb, INET_DIAG_SHUTDOWN, sk->sk_shutdown))
+		goto errout;
+
 	/* IPv6 dual-stack sockets use inet->tos for IPv4 connections,
 	 * hence this needs to be included regardless of socket family.
 	 */
@@ -716,7 +719,7 @@ static int inet_diag_fill_req(struct sk_buff *skb, struct sock *sk,
 	r->idiag_family = sk->sk_family;
 	r->idiag_state = TCP_SYN_RECV;
 	r->idiag_timer = 1;
-	r->idiag_retrans = req->retrans;
+	r->idiag_retrans = req->num_retrans;
 
 	r->id.idiag_if = sk->sk_bound_dev_if;
 	sock_diag_save_cookie(req, r->id.idiag_cookie);
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 7880af9..fa3ae81 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -237,12 +237,14 @@ struct sock *__inet_lookup_established(struct net *net,
 	rcu_read_lock();
 begin:
 	sk_nulls_for_each_rcu(sk, node, &head->chain) {
-		if (INET_MATCH(sk, net, hash, acookie,
-					saddr, daddr, ports, dif)) {
+		if (sk->sk_hash != hash)
+			continue;
+		if (likely(INET_MATCH(sk, net, acookie,
+				      saddr, daddr, ports, dif))) {
 			if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt)))
 				goto begintw;
-			if (unlikely(!INET_MATCH(sk, net, hash, acookie,
-				saddr, daddr, ports, dif))) {
+			if (unlikely(!INET_MATCH(sk, net, acookie,
+						 saddr, daddr, ports, dif))) {
 				sock_put(sk);
 				goto begin;
 			}
@@ -260,14 +262,18 @@ begin:
 begintw:
 	/* Must check for a TIME_WAIT'er before going to listener hash. */
 	sk_nulls_for_each_rcu(sk, node, &head->twchain) {
-		if (INET_TW_MATCH(sk, net, hash, acookie,
-					saddr, daddr, ports, dif)) {
+		if (sk->sk_hash != hash)
+			continue;
+		if (likely(INET_TW_MATCH(sk, net, acookie,
+					 saddr, daddr, ports,
+					 dif))) {
 			if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt))) {
 				sk = NULL;
 				goto out;
 			}
-			if (unlikely(!INET_TW_MATCH(sk, net, hash, acookie,
-				 saddr, daddr, ports, dif))) {
+			if (unlikely(!INET_TW_MATCH(sk, net, acookie,
+						    saddr, daddr, ports,
+						    dif))) {
 				sock_put(sk);
 				goto begintw;
 			}
@@ -314,10 +320,12 @@ static int __inet_check_established(struct inet_timewait_death_row *death_row,
 
 	/* Check TIME-WAIT sockets first. */
 	sk_nulls_for_each(sk2, node, &head->twchain) {
-		tw = inet_twsk(sk2);
+		if (sk2->sk_hash != hash)
+			continue;
 
-		if (INET_TW_MATCH(sk2, net, hash, acookie,
-					saddr, daddr, ports, dif)) {
+		if (likely(INET_TW_MATCH(sk2, net, acookie,
+					 saddr, daddr, ports, dif))) {
+			tw = inet_twsk(sk2);
 			if (twsk_unique(sk, sk2, twp))
 				goto unique;
 			else
@@ -328,8 +336,10 @@ static int __inet_check_established(struct inet_timewait_death_row *death_row,
 
 	/* And established part... */
 	sk_nulls_for_each(sk2, node, &head->chain) {
-		if (INET_MATCH(sk2, net, hash, acookie,
-					saddr, daddr, ports, dif))
+		if (sk2->sk_hash != hash)
+			continue;
+		if (likely(INET_MATCH(sk2, net, acookie,
+				      saddr, daddr, ports, dif)))
 			goto not_unique;
 	}
 
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 8d5cc75..eb9d63a 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -801,6 +801,10 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
 		table[0].data = &net->ipv4.frags.high_thresh;
 		table[1].data = &net->ipv4.frags.low_thresh;
 		table[2].data = &net->ipv4.frags.timeout;
+
+		/* Don't export sysctls to unprivileged users */
+		if (net->user_ns != &init_user_ns)
+			table[0].procname = NULL;
 	}
 
 	hdr = register_net_sysctl(net, "net/ipv4", table);
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 7240f8e..a85ae2f 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -164,21 +164,6 @@ struct ipgre_net {
 #define tunnels_r	tunnels[2]
 #define tunnels_l	tunnels[1]
 #define tunnels_wc	tunnels[0]
-/*
- * Locking : hash tables are protected by RCU and RTNL
- */
-
-#define for_each_ip_tunnel_rcu(start) \
-	for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
-
-/* often modified stats are per cpu, other are shared (netdev->stats) */
-struct pcpu_tstats {
-	u64	rx_packets;
-	u64	rx_bytes;
-	u64	tx_packets;
-	u64	tx_bytes;
-	struct u64_stats_sync	syncp;
-};
 
 static struct rtnl_link_stats64 *ipgre_get_stats64(struct net_device *dev,
 						   struct rtnl_link_stats64 *tot)
@@ -250,7 +235,7 @@ static struct ip_tunnel *ipgre_tunnel_lookup(struct net_device *dev,
 		       ARPHRD_ETHER : ARPHRD_IPGRE;
 	int score, cand_score = 4;
 
-	for_each_ip_tunnel_rcu(ign->tunnels_r_l[h0 ^ h1]) {
+	for_each_ip_tunnel_rcu(t, ign->tunnels_r_l[h0 ^ h1]) {
 		if (local != t->parms.iph.saddr ||
 		    remote != t->parms.iph.daddr ||
 		    !(t->dev->flags & IFF_UP))
@@ -277,7 +262,7 @@ static struct ip_tunnel *ipgre_tunnel_lookup(struct net_device *dev,
 		}
 	}
 
-	for_each_ip_tunnel_rcu(ign->tunnels_r[h0 ^ h1]) {
+	for_each_ip_tunnel_rcu(t, ign->tunnels_r[h0 ^ h1]) {
 		if (remote != t->parms.iph.daddr ||
 		    !(t->dev->flags & IFF_UP))
 			continue;
@@ -303,7 +288,7 @@ static struct ip_tunnel *ipgre_tunnel_lookup(struct net_device *dev,
 		}
 	}
 
-	for_each_ip_tunnel_rcu(ign->tunnels_l[h1]) {
+	for_each_ip_tunnel_rcu(t, ign->tunnels_l[h1]) {
 		if ((local != t->parms.iph.saddr &&
 		     (local != t->parms.iph.daddr ||
 		      !ipv4_is_multicast(local))) ||
@@ -331,7 +316,7 @@ static struct ip_tunnel *ipgre_tunnel_lookup(struct net_device *dev,
 		}
 	}
 
-	for_each_ip_tunnel_rcu(ign->tunnels_wc[h1]) {
+	for_each_ip_tunnel_rcu(t, ign->tunnels_wc[h1]) {
 		if (t->parms.i_key != key ||
 		    !(t->dev->flags & IFF_UP))
 			continue;
@@ -753,7 +738,6 @@ drop:
 static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
-	struct pcpu_tstats *tstats;
 	const struct iphdr  *old_iph = ip_hdr(skb);
 	const struct iphdr  *tiph;
 	struct flowi4 fl4;
@@ -977,9 +961,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
 		}
 	}
 
-	nf_reset(skb);
-	tstats = this_cpu_ptr(dev->tstats);
-	__IPTUNNEL_XMIT(tstats, &dev->stats);
+	iptunnel_xmit(skb, dev);
 	return NETDEV_TX_OK;
 
 #if IS_ENABLED(CONFIG_IPV6)
@@ -1082,7 +1064,7 @@ ipgre_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 	case SIOCADDTUNNEL:
 	case SIOCCHGTUNNEL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto done;
 
 		err = -EFAULT;
@@ -1157,7 +1139,7 @@ ipgre_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 
 	case SIOCDELTUNNEL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto done;
 
 		if (dev == ign->fb_tunnel_dev) {
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index 1dc01f9..f6289bf 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -409,7 +409,7 @@ int ip_options_compile(struct net *net,
 					optptr[2] += 8;
 					break;
 				      default:
-					if (!skb && !capable(CAP_NET_RAW)) {
+					if (!skb && !ns_capable(net->user_ns, CAP_NET_RAW)) {
 						pp_ptr = optptr + 3;
 						goto error;
 					}
@@ -445,7 +445,7 @@ int ip_options_compile(struct net *net,
 				opt->router_alert = optptr - iph;
 			break;
 		      case IPOPT_CIPSO:
-			if ((!skb && !capable(CAP_NET_RAW)) || opt->cipso) {
+			if ((!skb && !ns_capable(net->user_ns, CAP_NET_RAW)) || opt->cipso) {
 				pp_ptr = optptr;
 				goto error;
 			}
@@ -458,7 +458,7 @@ int ip_options_compile(struct net *net,
 		      case IPOPT_SEC:
 		      case IPOPT_SID:
 		      default:
-			if (!skb && !capable(CAP_NET_RAW)) {
+			if (!skb && !ns_capable(net->user_ns, CAP_NET_RAW)) {
 				pp_ptr = optptr;
 				goto error;
 			}
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 6537a40..3e98ed2 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -595,6 +595,10 @@ slow_path_clean:
 	}
 
 slow_path:
+	/* for offloaded checksums cleanup checksum before fragmentation */
+	if ((skb->ip_summed == CHECKSUM_PARTIAL) && skb_checksum_help(skb))
+		goto fail;
+
 	left = skb->len - hlen;		/* Space per frame */
 	ptr = hlen;		/* Where to start from */
 
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 14bbfcf..3c9d208 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -989,13 +989,14 @@ mc_msf_out:
 	case IP_IPSEC_POLICY:
 	case IP_XFRM_POLICY:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 			break;
 		err = xfrm_user_policy(sk, optname, optval, optlen);
 		break;
 
 	case IP_TRANSPARENT:
-		if (!!val && !capable(CAP_NET_RAW) && !capable(CAP_NET_ADMIN)) {
+		if (!!val && !ns_capable(sock_net(sk)->user_ns, CAP_NET_RAW) &&
+		    !ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) {
 			err = -EPERM;
 			break;
 		}
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 858fddf..c3a4233 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -66,20 +66,6 @@ static void vti_tunnel_setup(struct net_device *dev);
 static void vti_dev_free(struct net_device *dev);
 static int vti_tunnel_bind_dev(struct net_device *dev);
 
-/* Locking : hash tables are protected by RCU and RTNL */
-
-#define for_each_ip_tunnel_rcu(start) \
-	for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
-
-/* often modified stats are per cpu, other are shared (netdev->stats) */
-struct pcpu_tstats {
-	u64	rx_packets;
-	u64	rx_bytes;
-	u64	tx_packets;
-	u64	tx_bytes;
-	struct	u64_stats_sync	syncp;
-};
-
 #define VTI_XMIT(stats1, stats2) do {				\
 	int err;						\
 	int pkt_len = skb->len;					\
@@ -142,19 +128,19 @@ static struct ip_tunnel *vti_tunnel_lookup(struct net *net,
 	struct ip_tunnel *t;
 	struct vti_net *ipn = net_generic(net, vti_net_id);
 
-	for_each_ip_tunnel_rcu(ipn->tunnels_r_l[h0 ^ h1])
+	for_each_ip_tunnel_rcu(t, ipn->tunnels_r_l[h0 ^ h1])
 		if (local == t->parms.iph.saddr &&
 		    remote == t->parms.iph.daddr && (t->dev->flags&IFF_UP))
 			return t;
-	for_each_ip_tunnel_rcu(ipn->tunnels_r[h0])
+	for_each_ip_tunnel_rcu(t, ipn->tunnels_r[h0])
 		if (remote == t->parms.iph.daddr && (t->dev->flags&IFF_UP))
 			return t;
 
-	for_each_ip_tunnel_rcu(ipn->tunnels_l[h1])
+	for_each_ip_tunnel_rcu(t, ipn->tunnels_l[h1])
 		if (local == t->parms.iph.saddr && (t->dev->flags&IFF_UP))
 			return t;
 
-	for_each_ip_tunnel_rcu(ipn->tunnels_wc[0])
+	for_each_ip_tunnel_rcu(t, ipn->tunnels_wc[0])
 		if (t && (t->dev->flags&IFF_UP))
 			return t;
 	return NULL;
@@ -502,7 +488,7 @@ vti_tunnel_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	case SIOCADDTUNNEL:
 	case SIOCCHGTUNNEL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto done;
 
 		err = -EFAULT;
@@ -567,7 +553,7 @@ vti_tunnel_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 
 	case SIOCDELTUNNEL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto done;
 
 		if (dev == ipn->fb_tunnel_dev) {
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 798358b..d763701 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -1500,8 +1500,10 @@ static int __init ip_auto_config(void)
 	 * Clue in the operator.
 	 */
 	pr_info("IP-Config: Complete:\n");
-	pr_info("     device=%s, addr=%pI4, mask=%pI4, gw=%pI4\n",
-		ic_dev->name, &ic_myaddr, &ic_netmask, &ic_gateway);
+
+	pr_info("     device=%s, hwaddr=%*phC, ipaddr=%pI4, mask=%pI4, gw=%pI4\n",
+		ic_dev->name, ic_dev->addr_len, ic_dev->dev_addr,
+		&ic_myaddr, &ic_netmask, &ic_gateway);
 	pr_info("     host=%s, domain=%s, nis-domain=%s\n",
 		utsname()->nodename, ic_domain, utsname()->domainname);
 	pr_info("     bootserver=%pI4, rootserver=%pI4, rootpath=%s",
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index e15b452..191fc24 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -138,22 +138,7 @@ struct ipip_net {
 static int ipip_tunnel_init(struct net_device *dev);
 static void ipip_tunnel_setup(struct net_device *dev);
 static void ipip_dev_free(struct net_device *dev);
-
-/*
- * Locking : hash tables are protected by RCU and RTNL
- */
-
-#define for_each_ip_tunnel_rcu(start) \
-	for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
-
-/* often modified stats are per cpu, other are shared (netdev->stats) */
-struct pcpu_tstats {
-	u64	rx_packets;
-	u64	rx_bytes;
-	u64	tx_packets;
-	u64	tx_bytes;
-	struct u64_stats_sync	syncp;
-};
+static struct rtnl_link_ops ipip_link_ops __read_mostly;
 
 static struct rtnl_link_stats64 *ipip_get_stats64(struct net_device *dev,
 						  struct rtnl_link_stats64 *tot)
@@ -197,16 +182,16 @@ static struct ip_tunnel *ipip_tunnel_lookup(struct net *net,
 	struct ip_tunnel *t;
 	struct ipip_net *ipn = net_generic(net, ipip_net_id);
 
-	for_each_ip_tunnel_rcu(ipn->tunnels_r_l[h0 ^ h1])
+	for_each_ip_tunnel_rcu(t, ipn->tunnels_r_l[h0 ^ h1])
 		if (local == t->parms.iph.saddr &&
 		    remote == t->parms.iph.daddr && (t->dev->flags&IFF_UP))
 			return t;
 
-	for_each_ip_tunnel_rcu(ipn->tunnels_r[h0])
+	for_each_ip_tunnel_rcu(t, ipn->tunnels_r[h0])
 		if (remote == t->parms.iph.daddr && (t->dev->flags&IFF_UP))
 			return t;
 
-	for_each_ip_tunnel_rcu(ipn->tunnels_l[h1])
+	for_each_ip_tunnel_rcu(t, ipn->tunnels_l[h1])
 		if (local == t->parms.iph.saddr && (t->dev->flags&IFF_UP))
 			return t;
 
@@ -264,6 +249,32 @@ static void ipip_tunnel_link(struct ipip_net *ipn, struct ip_tunnel *t)
 	rcu_assign_pointer(*tp, t);
 }
 
+static int ipip_tunnel_create(struct net_device *dev)
+{
+	struct ip_tunnel *t = netdev_priv(dev);
+	struct net *net = dev_net(dev);
+	struct ipip_net *ipn = net_generic(net, ipip_net_id);
+	int err;
+
+	err = ipip_tunnel_init(dev);
+	if (err < 0)
+		goto out;
+
+	err = register_netdevice(dev);
+	if (err < 0)
+		goto out;
+
+	strcpy(t->parms.name, dev->name);
+	dev->rtnl_link_ops = &ipip_link_ops;
+
+	dev_hold(dev);
+	ipip_tunnel_link(ipn, t);
+	return 0;
+
+out:
+	return err;
+}
+
 static struct ip_tunnel *ipip_tunnel_locate(struct net *net,
 		struct ip_tunnel_parm *parms, int create)
 {
@@ -298,16 +309,9 @@ static struct ip_tunnel *ipip_tunnel_locate(struct net *net,
 	nt = netdev_priv(dev);
 	nt->parms = *parms;
 
-	if (ipip_tunnel_init(dev) < 0)
+	if (ipip_tunnel_create(dev) < 0)
 		goto failed_free;
 
-	if (register_netdevice(dev) < 0)
-		goto failed_free;
-
-	strcpy(nt->parms.name, dev->name);
-
-	dev_hold(dev);
-	ipip_tunnel_link(ipn, nt);
 	return nt;
 
 failed_free:
@@ -463,7 +467,6 @@ drop:
 static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
-	struct pcpu_tstats *tstats;
 	const struct iphdr  *tiph = &tunnel->parms.iph;
 	u8     tos = tunnel->parms.iph.tos;
 	__be16 df = tiph->frag_off;
@@ -479,6 +482,10 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (skb->protocol != htons(ETH_P_IP))
 		goto tx_error;
 
+	if (skb->ip_summed == CHECKSUM_PARTIAL &&
+	    skb_checksum_help(skb))
+		goto tx_error;
+
 	if (tos & 1)
 		tos = old_iph->tos;
 
@@ -586,9 +593,7 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	if ((iph->ttl = tiph->ttl) == 0)
 		iph->ttl	=	old_iph->ttl;
 
-	nf_reset(skb);
-	tstats = this_cpu_ptr(dev->tstats);
-	__IPTUNNEL_XMIT(tstats, &dev->stats);
+	iptunnel_xmit(skb, dev);
 	return NETDEV_TX_OK;
 
 tx_error_icmp:
@@ -635,6 +640,28 @@ static void ipip_tunnel_bind_dev(struct net_device *dev)
 	dev->iflink = tunnel->parms.link;
 }
 
+static void ipip_tunnel_update(struct ip_tunnel *t, struct ip_tunnel_parm *p)
+{
+	struct net *net = dev_net(t->dev);
+	struct ipip_net *ipn = net_generic(net, ipip_net_id);
+
+	ipip_tunnel_unlink(ipn, t);
+	synchronize_net();
+	t->parms.iph.saddr = p->iph.saddr;
+	t->parms.iph.daddr = p->iph.daddr;
+	memcpy(t->dev->dev_addr, &p->iph.saddr, 4);
+	memcpy(t->dev->broadcast, &p->iph.daddr, 4);
+	ipip_tunnel_link(ipn, t);
+	t->parms.iph.ttl = p->iph.ttl;
+	t->parms.iph.tos = p->iph.tos;
+	t->parms.iph.frag_off = p->iph.frag_off;
+	if (t->parms.link != p->link) {
+		t->parms.link = p->link;
+		ipip_tunnel_bind_dev(t->dev);
+	}
+	netdev_state_change(t->dev);
+}
+
 static int
 ipip_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 {
@@ -664,7 +691,7 @@ ipip_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 	case SIOCADDTUNNEL:
 	case SIOCCHGTUNNEL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto done;
 
 		err = -EFAULT;
@@ -693,29 +720,13 @@ ipip_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 					break;
 				}
 				t = netdev_priv(dev);
-				ipip_tunnel_unlink(ipn, t);
-				synchronize_net();
-				t->parms.iph.saddr = p.iph.saddr;
-				t->parms.iph.daddr = p.iph.daddr;
-				memcpy(dev->dev_addr, &p.iph.saddr, 4);
-				memcpy(dev->broadcast, &p.iph.daddr, 4);
-				ipip_tunnel_link(ipn, t);
-				netdev_state_change(dev);
 			}
+
+			ipip_tunnel_update(t, &p);
 		}
 
 		if (t) {
 			err = 0;
-			if (cmd == SIOCCHGTUNNEL) {
-				t->parms.iph.ttl = p.iph.ttl;
-				t->parms.iph.tos = p.iph.tos;
-				t->parms.iph.frag_off = p.iph.frag_off;
-				if (t->parms.link != p.link) {
-					t->parms.link = p.link;
-					ipip_tunnel_bind_dev(dev);
-					netdev_state_change(dev);
-				}
-			}
 			if (copy_to_user(ifr->ifr_ifru.ifru_data, &t->parms, sizeof(p)))
 				err = -EFAULT;
 		} else
@@ -724,7 +735,7 @@ ipip_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 
 	case SIOCDELTUNNEL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto done;
 
 		if (dev == ipn->fb_tunnel_dev) {
@@ -773,6 +784,11 @@ static void ipip_dev_free(struct net_device *dev)
 	free_netdev(dev);
 }
 
+#define IPIP_FEATURES (NETIF_F_SG |		\
+		       NETIF_F_FRAGLIST |	\
+		       NETIF_F_HIGHDMA |	\
+		       NETIF_F_HW_CSUM)
+
 static void ipip_tunnel_setup(struct net_device *dev)
 {
 	dev->netdev_ops		= &ipip_netdev_ops;
@@ -787,6 +803,9 @@ static void ipip_tunnel_setup(struct net_device *dev)
 	dev->features		|= NETIF_F_NETNS_LOCAL;
 	dev->features		|= NETIF_F_LLTX;
 	dev->priv_flags		&= ~IFF_XMIT_DST_RELEASE;
+
+	dev->features		|= IPIP_FEATURES;
+	dev->hw_features	|= IPIP_FEATURES;
 }
 
 static int ipip_tunnel_init(struct net_device *dev)
@@ -829,6 +848,142 @@ static int __net_init ipip_fb_tunnel_init(struct net_device *dev)
 	return 0;
 }
 
+static void ipip_netlink_parms(struct nlattr *data[],
+			       struct ip_tunnel_parm *parms)
+{
+	memset(parms, 0, sizeof(*parms));
+
+	parms->iph.version = 4;
+	parms->iph.protocol = IPPROTO_IPIP;
+	parms->iph.ihl = 5;
+
+	if (!data)
+		return;
+
+	if (data[IFLA_IPTUN_LINK])
+		parms->link = nla_get_u32(data[IFLA_IPTUN_LINK]);
+
+	if (data[IFLA_IPTUN_LOCAL])
+		parms->iph.saddr = nla_get_be32(data[IFLA_IPTUN_LOCAL]);
+
+	if (data[IFLA_IPTUN_REMOTE])
+		parms->iph.daddr = nla_get_be32(data[IFLA_IPTUN_REMOTE]);
+
+	if (data[IFLA_IPTUN_TTL]) {
+		parms->iph.ttl = nla_get_u8(data[IFLA_IPTUN_TTL]);
+		if (parms->iph.ttl)
+			parms->iph.frag_off = htons(IP_DF);
+	}
+
+	if (data[IFLA_IPTUN_TOS])
+		parms->iph.tos = nla_get_u8(data[IFLA_IPTUN_TOS]);
+
+	if (!data[IFLA_IPTUN_PMTUDISC] || nla_get_u8(data[IFLA_IPTUN_PMTUDISC]))
+		parms->iph.frag_off = htons(IP_DF);
+}
+
+static int ipip_newlink(struct net *src_net, struct net_device *dev,
+			struct nlattr *tb[], struct nlattr *data[])
+{
+	struct net *net = dev_net(dev);
+	struct ip_tunnel *nt;
+
+	nt = netdev_priv(dev);
+	ipip_netlink_parms(data, &nt->parms);
+
+	if (ipip_tunnel_locate(net, &nt->parms, 0))
+		return -EEXIST;
+
+	return ipip_tunnel_create(dev);
+}
+
+static int ipip_changelink(struct net_device *dev, struct nlattr *tb[],
+			   struct nlattr *data[])
+{
+	struct ip_tunnel *t;
+	struct ip_tunnel_parm p;
+	struct net *net = dev_net(dev);
+	struct ipip_net *ipn = net_generic(net, ipip_net_id);
+
+	if (dev == ipn->fb_tunnel_dev)
+		return -EINVAL;
+
+	ipip_netlink_parms(data, &p);
+
+	if (((dev->flags & IFF_POINTOPOINT) && !p.iph.daddr) ||
+	    (!(dev->flags & IFF_POINTOPOINT) && p.iph.daddr))
+		return -EINVAL;
+
+	t = ipip_tunnel_locate(net, &p, 0);
+
+	if (t) {
+		if (t->dev != dev)
+			return -EEXIST;
+	} else
+		t = netdev_priv(dev);
+
+	ipip_tunnel_update(t, &p);
+	return 0;
+}
+
+static size_t ipip_get_size(const struct net_device *dev)
+{
+	return
+		/* IFLA_IPTUN_LINK */
+		nla_total_size(4) +
+		/* IFLA_IPTUN_LOCAL */
+		nla_total_size(4) +
+		/* IFLA_IPTUN_REMOTE */
+		nla_total_size(4) +
+		/* IFLA_IPTUN_TTL */
+		nla_total_size(1) +
+		/* IFLA_IPTUN_TOS */
+		nla_total_size(1) +
+		/* IFLA_IPTUN_PMTUDISC */
+		nla_total_size(1) +
+		0;
+}
+
+static int ipip_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+	struct ip_tunnel *tunnel = netdev_priv(dev);
+	struct ip_tunnel_parm *parm = &tunnel->parms;
+
+	if (nla_put_u32(skb, IFLA_IPTUN_LINK, parm->link) ||
+	    nla_put_be32(skb, IFLA_IPTUN_LOCAL, parm->iph.saddr) ||
+	    nla_put_be32(skb, IFLA_IPTUN_REMOTE, parm->iph.daddr) ||
+	    nla_put_u8(skb, IFLA_IPTUN_TTL, parm->iph.ttl) ||
+	    nla_put_u8(skb, IFLA_IPTUN_TOS, parm->iph.tos) ||
+	    nla_put_u8(skb, IFLA_IPTUN_PMTUDISC,
+		       !!(parm->iph.frag_off & htons(IP_DF))))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
+static const struct nla_policy ipip_policy[IFLA_IPTUN_MAX + 1] = {
+	[IFLA_IPTUN_LINK]		= { .type = NLA_U32 },
+	[IFLA_IPTUN_LOCAL]		= { .type = NLA_U32 },
+	[IFLA_IPTUN_REMOTE]		= { .type = NLA_U32 },
+	[IFLA_IPTUN_TTL]		= { .type = NLA_U8 },
+	[IFLA_IPTUN_TOS]		= { .type = NLA_U8 },
+	[IFLA_IPTUN_PMTUDISC]		= { .type = NLA_U8 },
+};
+
+static struct rtnl_link_ops ipip_link_ops __read_mostly = {
+	.kind		= "ipip",
+	.maxtype	= IFLA_IPTUN_MAX,
+	.policy		= ipip_policy,
+	.priv_size	= sizeof(struct ip_tunnel),
+	.setup		= ipip_tunnel_setup,
+	.newlink	= ipip_newlink,
+	.changelink	= ipip_changelink,
+	.get_size	= ipip_get_size,
+	.fill_info	= ipip_fill_info,
+};
+
 static struct xfrm_tunnel ipip_handler __read_mostly = {
 	.handler	=	ipip_rcv,
 	.err_handler	=	ipip_err,
@@ -925,14 +1080,26 @@ static int __init ipip_init(void)
 		return err;
 	err = xfrm4_tunnel_register(&ipip_handler, AF_INET);
 	if (err < 0) {
-		unregister_pernet_device(&ipip_net_ops);
 		pr_info("%s: can't register tunnel\n", __func__);
+		goto xfrm_tunnel_failed;
 	}
+	err = rtnl_link_register(&ipip_link_ops);
+	if (err < 0)
+		goto rtnl_link_failed;
+
+out:
 	return err;
+
+rtnl_link_failed:
+	xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
+xfrm_tunnel_failed:
+	unregister_pernet_device(&ipip_net_ops);
+	goto out;
 }
 
 static void __exit ipip_fini(void)
 {
+	rtnl_link_unregister(&ipip_link_ops);
 	if (xfrm4_tunnel_deregister(&ipip_handler, AF_INET))
 		pr_info("%s: can't deregister tunnel\n", __func__);
 
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 3eab2b2..a9454cb 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -65,6 +65,7 @@
 #include <net/checksum.h>
 #include <net/netlink.h>
 #include <net/fib_rules.h>
+#include <linux/netconf.h>
 
 #if defined(CONFIG_IP_PIMSM_V1) || defined(CONFIG_IP_PIMSM_V2)
 #define CONFIG_IP_PIMSM	1
@@ -83,8 +84,8 @@ struct mr_table {
 	struct vif_device	vif_table[MAXVIFS];
 	int			maxvif;
 	atomic_t		cache_resolve_queue_len;
-	int			mroute_do_assert;
-	int			mroute_do_pim;
+	bool			mroute_do_assert;
+	bool			mroute_do_pim;
 #if defined(CONFIG_IP_PIMSM_V1) || defined(CONFIG_IP_PIMSM_V2)
 	int			mroute_reg_vif_num;
 #endif
@@ -133,6 +134,8 @@ static int ipmr_cache_report(struct mr_table *mrt,
 			     struct sk_buff *pkt, vifi_t vifi, int assert);
 static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
 			      struct mfc_cache *c, struct rtmsg *rtm);
+static void mroute_netlink_event(struct mr_table *mrt, struct mfc_cache *mfc,
+				 int cmd);
 static void mroute_clean_tables(struct mr_table *mrt);
 static void ipmr_expire_process(unsigned long arg);
 
@@ -582,6 +585,9 @@ static int vif_delete(struct mr_table *mrt, int vifi, int notify,
 	in_dev = __in_dev_get_rtnl(dev);
 	if (in_dev) {
 		IPV4_DEVCONF(in_dev->cnf, MC_FORWARDING)--;
+		inet_netconf_notify_devconf(dev_net(dev),
+					    NETCONFA_MC_FORWARDING,
+					    dev->ifindex, &in_dev->cnf);
 		ip_rt_multicast_event(in_dev);
 	}
 
@@ -665,6 +671,7 @@ static void ipmr_expire_process(unsigned long arg)
 		}
 
 		list_del(&c->list);
+		mroute_netlink_event(mrt, c, RTM_DELROUTE);
 		ipmr_destroy_unres(mrt, c);
 	}
 
@@ -772,6 +779,8 @@ static int vif_add(struct net *net, struct mr_table *mrt,
 		return -EADDRNOTAVAIL;
 	}
 	IPV4_DEVCONF(in_dev->cnf, MC_FORWARDING)++;
+	inet_netconf_notify_devconf(net, NETCONFA_MC_FORWARDING, dev->ifindex,
+				    &in_dev->cnf);
 	ip_rt_multicast_event(in_dev);
 
 	/* Fill in the VIF structures */
@@ -1020,6 +1029,7 @@ ipmr_cache_unresolved(struct mr_table *mrt, vifi_t vifi, struct sk_buff *skb)
 
 		atomic_inc(&mrt->cache_resolve_queue_len);
 		list_add(&c->list, &mrt->mfc_unres_queue);
+		mroute_netlink_event(mrt, c, RTM_NEWROUTE);
 
 		if (atomic_read(&mrt->cache_resolve_queue_len) == 1)
 			mod_timer(&mrt->ipmr_expire_timer, c->mfc_un.unres.expires);
@@ -1054,7 +1064,7 @@ static int ipmr_mfc_delete(struct mr_table *mrt, struct mfcctl *mfc)
 		if (c->mfc_origin == mfc->mfcc_origin.s_addr &&
 		    c->mfc_mcastgrp == mfc->mfcc_mcastgrp.s_addr) {
 			list_del_rcu(&c->list);
-
+			mroute_netlink_event(mrt, c, RTM_DELROUTE);
 			ipmr_cache_free(c);
 			return 0;
 		}
@@ -1089,6 +1099,7 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,
 		if (!mrtsock)
 			c->mfc_flags |= MFC_STATIC;
 		write_unlock_bh(&mrt_lock);
+		mroute_netlink_event(mrt, c, RTM_NEWROUTE);
 		return 0;
 	}
 
@@ -1131,6 +1142,7 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,
 		ipmr_cache_resolve(net, mrt, uc, c);
 		ipmr_cache_free(uc);
 	}
+	mroute_netlink_event(mrt, c, RTM_NEWROUTE);
 	return 0;
 }
 
@@ -1159,6 +1171,7 @@ static void mroute_clean_tables(struct mr_table *mrt)
 			if (c->mfc_flags & MFC_STATIC)
 				continue;
 			list_del_rcu(&c->list);
+			mroute_netlink_event(mrt, c, RTM_DELROUTE);
 			ipmr_cache_free(c);
 		}
 	}
@@ -1167,6 +1180,7 @@ static void mroute_clean_tables(struct mr_table *mrt)
 		spin_lock_bh(&mfc_unres_lock);
 		list_for_each_entry_safe(c, next, &mrt->mfc_unres_queue, list) {
 			list_del(&c->list);
+			mroute_netlink_event(mrt, c, RTM_DELROUTE);
 			ipmr_destroy_unres(mrt, c);
 		}
 		spin_unlock_bh(&mfc_unres_lock);
@@ -1185,6 +1199,9 @@ static void mrtsock_destruct(struct sock *sk)
 	ipmr_for_each_table(mrt, net) {
 		if (sk == rtnl_dereference(mrt->mroute_sk)) {
 			IPV4_DEVCONF_ALL(net, MC_FORWARDING)--;
+			inet_netconf_notify_devconf(net, NETCONFA_MC_FORWARDING,
+						    NETCONFA_IFINDEX_ALL,
+						    net->ipv4.devconf_all);
 			RCU_INIT_POINTER(mrt->mroute_sk, NULL);
 			mroute_clean_tables(mrt);
 		}
@@ -1207,23 +1224,24 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi
 	struct net *net = sock_net(sk);
 	struct mr_table *mrt;
 
+	if (sk->sk_type != SOCK_RAW ||
+	    inet_sk(sk)->inet_num != IPPROTO_IGMP)
+		return -EOPNOTSUPP;
+
 	mrt = ipmr_get_table(net, raw_sk(sk)->ipmr_table ? : RT_TABLE_DEFAULT);
 	if (mrt == NULL)
 		return -ENOENT;
 
 	if (optname != MRT_INIT) {
 		if (sk != rcu_access_pointer(mrt->mroute_sk) &&
-		    !capable(CAP_NET_ADMIN))
+		    !ns_capable(net->user_ns, CAP_NET_ADMIN))
 			return -EACCES;
 	}
 
 	switch (optname) {
 	case MRT_INIT:
-		if (sk->sk_type != SOCK_RAW ||
-		    inet_sk(sk)->inet_num != IPPROTO_IGMP)
-			return -EOPNOTSUPP;
 		if (optlen != sizeof(int))
-			return -ENOPROTOOPT;
+			return -EINVAL;
 
 		rtnl_lock();
 		if (rtnl_dereference(mrt->mroute_sk)) {
@@ -1235,6 +1253,9 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi
 		if (ret == 0) {
 			rcu_assign_pointer(mrt->mroute_sk, sk);
 			IPV4_DEVCONF_ALL(net, MC_FORWARDING)++;
+			inet_netconf_notify_devconf(net, NETCONFA_MC_FORWARDING,
+						    NETCONFA_IFINDEX_ALL,
+						    net->ipv4.devconf_all);
 		}
 		rtnl_unlock();
 		return ret;
@@ -1284,9 +1305,11 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi
 	case MRT_ASSERT:
 	{
 		int v;
+		if (optlen != sizeof(v))
+			return -EINVAL;
 		if (get_user(v, (int __user *)optval))
 			return -EFAULT;
-		mrt->mroute_do_assert = (v) ? 1 : 0;
+		mrt->mroute_do_assert = v;
 		return 0;
 	}
 #ifdef CONFIG_IP_PIMSM
@@ -1294,9 +1317,11 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi
 	{
 		int v;
 
+		if (optlen != sizeof(v))
+			return -EINVAL;
 		if (get_user(v, (int __user *)optval))
 			return -EFAULT;
-		v = (v) ? 1 : 0;
+		v = !!v;
 
 		rtnl_lock();
 		ret = 0;
@@ -1329,7 +1354,8 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi
 		} else {
 			if (!ipmr_new_table(net, v))
 				ret = -ENOMEM;
-			raw_sk(sk)->ipmr_table = v;
+			else
+				raw_sk(sk)->ipmr_table = v;
 		}
 		rtnl_unlock();
 		return ret;
@@ -1355,6 +1381,10 @@ int ip_mroute_getsockopt(struct sock *sk, int optname, char __user *optval, int
 	struct net *net = sock_net(sk);
 	struct mr_table *mrt;
 
+	if (sk->sk_type != SOCK_RAW ||
+	    inet_sk(sk)->inet_num != IPPROTO_IGMP)
+		return -EOPNOTSUPP;
+
 	mrt = ipmr_get_table(net, raw_sk(sk)->ipmr_table ? : RT_TABLE_DEFAULT);
 	if (mrt == NULL)
 		return -ENOENT;
@@ -2024,6 +2054,7 @@ static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
 	int ct;
 	struct rtnexthop *nhp;
 	struct nlattr *mp_attr;
+	struct rta_mfc_stats mfcs;
 
 	/* If cache is unresolved, don't try to parse IIF and OIF */
 	if (c->mfc_parent >= MAXVIFS)
@@ -2052,6 +2083,12 @@ static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
 
 	nla_nest_end(skb, mp_attr);
 
+	mfcs.mfcs_packets = c->mfc_un.res.pkt;
+	mfcs.mfcs_bytes = c->mfc_un.res.bytes;
+	mfcs.mfcs_wrong_if = c->mfc_un.res.wrong_if;
+	if (nla_put(skb, RTA_MFC_STATS, sizeof(mfcs), &mfcs) < 0)
+		return -EMSGSIZE;
+
 	rtm->rtm_type = RTN_MULTICAST;
 	return 1;
 }
@@ -2121,12 +2158,13 @@ int ipmr_get_route(struct net *net, struct sk_buff *skb,
 }
 
 static int ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
-			    u32 portid, u32 seq, struct mfc_cache *c)
+			    u32 portid, u32 seq, struct mfc_cache *c, int cmd)
 {
 	struct nlmsghdr *nlh;
 	struct rtmsg *rtm;
+	int err;
 
-	nlh = nlmsg_put(skb, portid, seq, RTM_NEWROUTE, sizeof(*rtm), NLM_F_MULTI);
+	nlh = nlmsg_put(skb, portid, seq, cmd, sizeof(*rtm), NLM_F_MULTI);
 	if (nlh == NULL)
 		return -EMSGSIZE;
 
@@ -2140,13 +2178,18 @@ static int ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
 		goto nla_put_failure;
 	rtm->rtm_type     = RTN_MULTICAST;
 	rtm->rtm_scope    = RT_SCOPE_UNIVERSE;
-	rtm->rtm_protocol = RTPROT_UNSPEC;
+	if (c->mfc_flags & MFC_STATIC)
+		rtm->rtm_protocol = RTPROT_STATIC;
+	else
+		rtm->rtm_protocol = RTPROT_MROUTED;
 	rtm->rtm_flags    = 0;
 
 	if (nla_put_be32(skb, RTA_SRC, c->mfc_origin) ||
 	    nla_put_be32(skb, RTA_DST, c->mfc_mcastgrp))
 		goto nla_put_failure;
-	if (__ipmr_fill_mroute(mrt, skb, c, rtm) < 0)
+	err = __ipmr_fill_mroute(mrt, skb, c, rtm);
+	/* do not break the dump if cache is unresolved */
+	if (err < 0 && err != -ENOENT)
 		goto nla_put_failure;
 
 	return nlmsg_end(skb, nlh);
@@ -2156,6 +2199,52 @@ nla_put_failure:
 	return -EMSGSIZE;
 }
 
+static size_t mroute_msgsize(bool unresolved, int maxvif)
+{
+	size_t len =
+		NLMSG_ALIGN(sizeof(struct rtmsg))
+		+ nla_total_size(4)	/* RTA_TABLE */
+		+ nla_total_size(4)	/* RTA_SRC */
+		+ nla_total_size(4)	/* RTA_DST */
+		;
+
+	if (!unresolved)
+		len = len
+		      + nla_total_size(4)	/* RTA_IIF */
+		      + nla_total_size(0)	/* RTA_MULTIPATH */
+		      + maxvif * NLA_ALIGN(sizeof(struct rtnexthop))
+						/* RTA_MFC_STATS */
+		      + nla_total_size(sizeof(struct rta_mfc_stats))
+		;
+
+	return len;
+}
+
+static void mroute_netlink_event(struct mr_table *mrt, struct mfc_cache *mfc,
+				 int cmd)
+{
+	struct net *net = read_pnet(&mrt->net);
+	struct sk_buff *skb;
+	int err = -ENOBUFS;
+
+	skb = nlmsg_new(mroute_msgsize(mfc->mfc_parent >= MAXVIFS, mrt->maxvif),
+			GFP_ATOMIC);
+	if (skb == NULL)
+		goto errout;
+
+	err = ipmr_fill_mroute(mrt, skb, 0, 0, mfc, cmd);
+	if (err < 0)
+		goto errout;
+
+	rtnl_notify(skb, net, 0, RTNLGRP_IPV4_MROUTE, NULL, GFP_ATOMIC);
+	return;
+
+errout:
+	kfree_skb(skb);
+	if (err < 0)
+		rtnl_set_sk_err(net, RTNLGRP_IPV4_MROUTE, err);
+}
+
 static int ipmr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	struct net *net = sock_net(skb->sk);
@@ -2182,13 +2271,29 @@ static int ipmr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
 				if (ipmr_fill_mroute(mrt, skb,
 						     NETLINK_CB(cb->skb).portid,
 						     cb->nlh->nlmsg_seq,
-						     mfc) < 0)
+						     mfc, RTM_NEWROUTE) < 0)
 					goto done;
 next_entry:
 				e++;
 			}
 			e = s_e = 0;
 		}
+		spin_lock_bh(&mfc_unres_lock);
+		list_for_each_entry(mfc, &mrt->mfc_unres_queue, list) {
+			if (e < s_e)
+				goto next_entry2;
+			if (ipmr_fill_mroute(mrt, skb,
+					     NETLINK_CB(cb->skb).portid,
+					     cb->nlh->nlmsg_seq,
+					     mfc, RTM_NEWROUTE) < 0) {
+				spin_unlock_bh(&mfc_unres_lock);
+				goto done;
+			}
+next_entry2:
+			e++;
+		}
+		spin_unlock_bh(&mfc_unres_lock);
+		e = s_e = 0;
 		s_h = 0;
 next_table:
 		t++;
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 97e61ea..3ea4127 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -1533,7 +1533,7 @@ static int compat_do_arpt_set_ctl(struct sock *sk, int cmd, void __user *user,
 {
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	switch (cmd) {
@@ -1677,7 +1677,7 @@ static int compat_do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user,
 {
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	switch (cmd) {
@@ -1698,7 +1698,7 @@ static int do_arpt_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned
 {
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	switch (cmd) {
@@ -1722,7 +1722,7 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
 {
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	switch (cmd) {
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 170b1fd..17c5e06 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -1846,7 +1846,7 @@ compat_do_ipt_set_ctl(struct sock *sk,	int cmd, void __user *user,
 {
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	switch (cmd) {
@@ -1961,7 +1961,7 @@ compat_do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 {
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	switch (cmd) {
@@ -1983,7 +1983,7 @@ do_ipt_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
 {
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	switch (cmd) {
@@ -2008,7 +2008,7 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 {
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	switch (cmd) {
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index fe5daea..75e33a7 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -661,6 +661,7 @@ static ssize_t clusterip_proc_write(struct file *file, const char __user *input,
 #define PROC_WRITELEN	10
 	char buffer[PROC_WRITELEN+1];
 	unsigned long nodenum;
+	int rc;
 
 	if (size > PROC_WRITELEN)
 		return -EIO;
@@ -669,11 +670,15 @@ static ssize_t clusterip_proc_write(struct file *file, const char __user *input,
 	buffer[size] = 0;
 
 	if (*buffer == '+') {
-		nodenum = simple_strtoul(buffer+1, NULL, 10);
+		rc = kstrtoul(buffer+1, 10, &nodenum);
+		if (rc)
+			return rc;
 		if (clusterip_add_node(c, nodenum))
 			return -ENOMEM;
 	} else if (*buffer == '-') {
-		nodenum = simple_strtoul(buffer+1, NULL,10);
+		rc = kstrtoul(buffer+1, 10, &nodenum);
+		if (rc)
+			return rc;
 		if (clusterip_del_node(c, nodenum))
 			return -ENOENT;
 	} else
diff --git a/net/ipv4/netfilter/iptable_nat.c b/net/ipv4/netfilter/iptable_nat.c
index a820472..da2c8a3 100644
--- a/net/ipv4/netfilter/iptable_nat.c
+++ b/net/ipv4/netfilter/iptable_nat.c
@@ -134,6 +134,10 @@ nf_nat_ipv4_fn(unsigned int hooknum,
 		/* ESTABLISHED */
 		NF_CT_ASSERT(ctinfo == IP_CT_ESTABLISHED ||
 			     ctinfo == IP_CT_ESTABLISHED_REPLY);
+		if (nf_nat_oif_changed(hooknum, ctinfo, nat, out)) {
+			nf_ct_kill_acct(ct, ctinfo, skb);
+			return NF_DROP;
+		}
 	}
 
 	return nf_nat_packet(ct, ctinfo, hooknum, skb);
@@ -276,9 +280,7 @@ static int __net_init iptable_nat_net_init(struct net *net)
 		return -ENOMEM;
 	net->ipv4.nat_table = ipt_register_table(net, &nf_nat_ipv4_table, repl);
 	kfree(repl);
-	if (IS_ERR(net->ipv4.nat_table))
-		return PTR_ERR(net->ipv4.nat_table);
-	return 0;
+	return PTR_RET(net->ipv4.nat_table);
 }
 
 static void __net_exit iptable_nat_net_exit(struct net *net)
diff --git a/net/ipv4/protocol.c b/net/ipv4/protocol.c
index 8918eff..0f9d09f 100644
--- a/net/ipv4/protocol.c
+++ b/net/ipv4/protocol.c
@@ -29,6 +29,7 @@
 #include <net/protocol.h>
 
 const struct net_protocol __rcu *inet_protos[MAX_INET_PROTOS] __read_mostly;
+const struct net_offload __rcu *inet_offloads[MAX_INET_PROTOS] __read_mostly;
 
 /*
  *	Add a protocol handler to the hash tables
@@ -41,6 +42,13 @@ int inet_add_protocol(const struct net_protocol *prot, unsigned char protocol)
 }
 EXPORT_SYMBOL(inet_add_protocol);
 
+int inet_add_offload(const struct net_offload *prot, unsigned char protocol)
+{
+	return !cmpxchg((const struct net_offload **)&inet_offloads[protocol],
+			NULL, prot) ? 0 : -1;
+}
+EXPORT_SYMBOL(inet_add_offload);
+
 /*
  *	Remove a protocol from the hash tables.
  */
@@ -57,3 +65,16 @@ int inet_del_protocol(const struct net_protocol *prot, unsigned char protocol)
 	return ret;
 }
 EXPORT_SYMBOL(inet_del_protocol);
+
+int inet_del_offload(const struct net_offload *prot, unsigned char protocol)
+{
+	int ret;
+
+	ret = (cmpxchg((const struct net_offload **)&inet_offloads[protocol],
+		       prot, NULL) == prot) ? 0 : -1;
+
+	synchronize_net();
+
+	return ret;
+}
+EXPORT_SYMBOL(inet_del_offload);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index df25142..844a9ef 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2232,8 +2232,27 @@ static int rt_fill_info(struct net *net,  __be32 dst, __be32 src,
 	error = rt->dst.error;
 
 	if (rt_is_input_route(rt)) {
-		if (nla_put_u32(skb, RTA_IIF, rt->rt_iif))
-			goto nla_put_failure;
+#ifdef CONFIG_IP_MROUTE
+		if (ipv4_is_multicast(dst) && !ipv4_is_local_multicast(dst) &&
+		    IPV4_DEVCONF_ALL(net, MC_FORWARDING)) {
+			int err = ipmr_get_route(net, skb,
+						 fl4->saddr, fl4->daddr,
+						 r, nowait);
+			if (err <= 0) {
+				if (!nowait) {
+					if (err == 0)
+						return 0;
+					goto nla_put_failure;
+				} else {
+					if (err == -EMSGSIZE)
+						goto nla_put_failure;
+					error = err;
+				}
+			}
+		} else
+#endif
+			if (nla_put_u32(skb, RTA_IIF, rt->rt_iif))
+				goto nla_put_failure;
 	}
 
 	if (rtnl_put_cacheinfo(skb, &rt->dst, 0, expires, error) < 0)
@@ -2496,6 +2515,10 @@ static __net_init int sysctl_route_net_init(struct net *net)
 		tbl = kmemdup(tbl, sizeof(ipv4_route_flush_table), GFP_KERNEL);
 		if (tbl == NULL)
 			goto err_dup;
+
+		/* Don't export sysctls to unprivileged users */
+		if (net->user_ns != &init_user_ns)
+			tbl[0].procname = NULL;
 	}
 	tbl[0].extra1 = net;
 
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index ba48e79..b236ef0 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -340,7 +340,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	}
 
 	req->expires	= 0UL;
-	req->retrans	= 0;
+	req->num_retrans = 0;
 
 	/*
 	 * We need to lookup the route here to get at the correct
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 63d4ecc..d84400b 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -883,6 +883,9 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
 		table[6].data =
 			&net->ipv4.sysctl_ping_group_range;
 
+		/* Don't export sysctls to unprivileged users */
+		if (net->user_ns != &init_user_ns)
+			table[0].procname = NULL;
 	}
 
 	/*
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index e457c7a..1ca2536 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -536,13 +536,14 @@ int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	int answ;
+	bool slow;
 
 	switch (cmd) {
 	case SIOCINQ:
 		if (sk->sk_state == TCP_LISTEN)
 			return -EINVAL;
 
-		lock_sock(sk);
+		slow = lock_sock_fast(sk);
 		if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV))
 			answ = 0;
 		else if (sock_flag(sk, SOCK_URGINLINE) ||
@@ -557,7 +558,7 @@ int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg)
 				answ--;
 		} else
 			answ = tp->urg_seq - tp->copied_seq;
-		release_sock(sk);
+		unlock_sock_fast(sk, slow);
 		break;
 	case SIOCATMARK:
 		answ = tp->urg_data && tp->urg_seq == tp->copied_seq;
@@ -1490,15 +1491,19 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
 				copied += used;
 				offset += used;
 			}
-			/*
-			 * If recv_actor drops the lock (e.g. TCP splice
+			/* If recv_actor drops the lock (e.g. TCP splice
 			 * receive) the skb pointer might be invalid when
 			 * getting here: tcp_collapse might have deleted it
 			 * while aggregating skbs from the socket queue.
 			 */
-			skb = tcp_recv_skb(sk, seq-1, &offset);
-			if (!skb || (offset+1 != skb->len))
+			skb = tcp_recv_skb(sk, seq - 1, &offset);
+			if (!skb)
 				break;
+			/* TCP coalescing might have appended data to the skb.
+			 * Try to splice more frags
+			 */
+			if (offset + 1 != skb->len)
+				continue;
 		}
 		if (tcp_hdr(skb)->fin) {
 			sk_eat_skb(sk, skb, false);
@@ -2300,7 +2305,7 @@ void tcp_sock_destruct(struct sock *sk)
 
 static inline bool tcp_can_repair_sock(const struct sock *sk)
 {
-	return capable(CAP_NET_ADMIN) &&
+	return ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN) &&
 		((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_ESTABLISHED));
 }
 
@@ -3586,8 +3591,7 @@ void __init tcp_init(void)
 		alloc_large_system_hash("TCP established",
 					sizeof(struct inet_ehash_bucket),
 					thash_entries,
-					(totalram_pages >= 128 * 1024) ?
-					13 : 15,
+					17, /* one slot per 128 KB of memory */
 					0,
 					NULL,
 					&tcp_hashinfo.ehash_mask,
@@ -3603,8 +3607,7 @@ void __init tcp_init(void)
 		alloc_large_system_hash("TCP bind",
 					sizeof(struct inet_bind_hashbucket),
 					tcp_hashinfo.ehash_mask + 1,
-					(totalram_pages >= 128 * 1024) ?
-					13 : 15,
+					17, /* one slot per 128 KB of memory */
 					0,
 					&tcp_hashinfo.bhash_size,
 					NULL,
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index 1432cdb..baf2861 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -259,7 +259,8 @@ int tcp_set_congestion_control(struct sock *sk, const char *name)
 	if (!ca)
 		err = -ENOENT;
 
-	else if (!((ca->flags & TCP_CONG_NON_RESTRICTED) || capable(CAP_NET_ADMIN)))
+	else if (!((ca->flags & TCP_CONG_NON_RESTRICTED) ||
+		   ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)))
 		err = -EPERM;
 
 	else if (!try_module_get(ca->owner))
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 181fc82..a136925 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3552,6 +3552,24 @@ static bool tcp_process_frto(struct sock *sk, int flag)
 	return false;
 }
 
+/* RFC 5961 7 [ACK Throttling] */
+static void tcp_send_challenge_ack(struct sock *sk)
+{
+	/* unprotected vars, we dont care of overwrites */
+	static u32 challenge_timestamp;
+	static unsigned int challenge_count;
+	u32 now = jiffies / HZ;
+
+	if (now != challenge_timestamp) {
+		challenge_timestamp = now;
+		challenge_count = 0;
+	}
+	if (++challenge_count <= sysctl_tcp_challenge_ack_limit) {
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPCHALLENGEACK);
+		tcp_send_ack(sk);
+	}
+}
+
 /* This routine deals with incoming acks, but not outgoing ones. */
 static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
 {
@@ -3571,8 +3589,14 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
 	/* If the ack is older than previous acks
 	 * then we can probably ignore it.
 	 */
-	if (before(ack, prior_snd_una))
+	if (before(ack, prior_snd_una)) {
+		/* RFC 5961 5.2 [Blind Data Injection Attack].[Mitigation] */
+		if (before(ack, prior_snd_una - tp->max_window)) {
+			tcp_send_challenge_ack(sk);
+			return -1;
+		}
 		goto old_ack;
+	}
 
 	/* If the ack includes data we haven't sent yet, discard
 	 * this segment (RFC793 Section 3.9).
@@ -5244,23 +5268,6 @@ out:
 }
 #endif /* CONFIG_NET_DMA */
 
-static void tcp_send_challenge_ack(struct sock *sk)
-{
-	/* unprotected vars, we dont care of overwrites */
-	static u32 challenge_timestamp;
-	static unsigned int challenge_count;
-	u32 now = jiffies / HZ;
-
-	if (now != challenge_timestamp) {
-		challenge_timestamp = now;
-		challenge_count = 0;
-	}
-	if (++challenge_count <= sysctl_tcp_challenge_ack_limit) {
-		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPCHALLENGEACK);
-		tcp_send_ack(sk);
-	}
-}
-
 /* Does PAWS and seqno based validation of an incoming segment, flags will
  * play significant role here.
  */
@@ -5992,7 +5999,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 				 */
 				if (req) {
 					tcp_synack_rtt_meas(sk, req);
-					tp->total_retrans = req->retrans;
+					tp->total_retrans = req->num_retrans;
 
 					reqsk_fastopen_remove(sk, req, false);
 				} else {
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 0c4a643..1ed2307 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -138,14 +138,6 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
 }
 EXPORT_SYMBOL_GPL(tcp_twsk_unique);
 
-static int tcp_repair_connect(struct sock *sk)
-{
-	tcp_connect_init(sk);
-	tcp_finish_connect(sk, NULL);
-
-	return 0;
-}
-
 /* This will initiate an outgoing connection. */
 int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 {
@@ -250,10 +242,7 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 
 	inet->inet_id = tp->write_seq ^ jiffies;
 
-	if (likely(!tp->repair))
-		err = tcp_connect(sk);
-	else
-		err = tcp_repair_connect(sk);
+	err = tcp_connect(sk);
 
 	rt = NULL;
 	if (err)
@@ -877,10 +866,13 @@ static int tcp_v4_send_synack(struct sock *sk, struct dst_entry *dst,
 }
 
 static int tcp_v4_rtx_synack(struct sock *sk, struct request_sock *req,
-			      struct request_values *rvp)
+			     struct request_values *rvp)
 {
-	TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_RETRANSSEGS);
-	return tcp_v4_send_synack(sk, NULL, req, rvp, 0, false);
+	int res = tcp_v4_send_synack(sk, NULL, req, rvp, 0, false);
+
+	if (!res)
+		TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_RETRANSSEGS);
+	return res;
 }
 
 /*
@@ -1070,7 +1062,7 @@ int tcp_md5_do_del(struct sock *sk, const union tcp_md5_addr *addr, int family)
 }
 EXPORT_SYMBOL(tcp_md5_do_del);
 
-void tcp_clear_md5_list(struct sock *sk)
+static void tcp_clear_md5_list(struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct tcp_md5sig_key *key;
@@ -1386,7 +1378,8 @@ static int tcp_v4_conn_req_fastopen(struct sock *sk,
 	struct sock *child;
 	int err;
 
-	req->retrans = 0;
+	req->num_retrans = 0;
+	req->num_timeout = 0;
 	req->sk = NULL;
 
 	child = inet_csk(sk)->icsk_af_ops->syn_recv_sock(sk, skb, req, NULL);
@@ -1741,7 +1734,7 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
 	tcp_initialize_rcv_mss(newsk);
 	tcp_synack_rtt_meas(newsk, req);
-	newtp->total_retrans = req->retrans;
+	newtp->total_retrans = req->num_retrans;
 
 #ifdef CONFIG_TCP_MD5SIG
 	/* Copy over the MD5 key from the original socket */
@@ -1919,7 +1912,6 @@ EXPORT_SYMBOL(tcp_v4_do_rcv);
 
 void tcp_v4_early_demux(struct sk_buff *skb)
 {
-	struct net *net = dev_net(skb->dev);
 	const struct iphdr *iph;
 	const struct tcphdr *th;
 	struct sock *sk;
@@ -1927,16 +1919,16 @@ void tcp_v4_early_demux(struct sk_buff *skb)
 	if (skb->pkt_type != PACKET_HOST)
 		return;
 
-	if (!pskb_may_pull(skb, ip_hdrlen(skb) + sizeof(struct tcphdr)))
+	if (!pskb_may_pull(skb, skb_transport_offset(skb) + sizeof(struct tcphdr)))
 		return;
 
 	iph = ip_hdr(skb);
-	th = (struct tcphdr *) ((char *)iph + ip_hdrlen(skb));
+	th = tcp_hdr(skb);
 
 	if (th->doff < sizeof(struct tcphdr) / 4)
 		return;
 
-	sk = __inet_lookup_established(net, &tcp_hashinfo,
+	sk = __inet_lookup_established(dev_net(skb->dev), &tcp_hashinfo,
 				       iph->saddr, th->source,
 				       iph->daddr, ntohs(th->dest),
 				       skb->skb_iif);
@@ -2640,7 +2632,7 @@ static void get_openreq4(const struct sock *sk, const struct request_sock *req,
 		0, 0, /* could print option size, but that is af dependent. */
 		1,    /* timers active (only the expire timer) */
 		jiffies_delta_to_clock_t(delta),
-		req->retrans,
+		req->num_timeout,
 		from_kuid_munged(seq_user_ns(f), uid),
 		0,  /* non standard timer */
 		0, /* open_requests have no inode */
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index a7302d9..f35f2df 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -553,7 +553,7 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
 			 * it can be estimated (approximately)
 			 * from another data.
 			 */
-			tmp_opt.ts_recent_stamp = get_seconds() - ((TCP_TIMEOUT_INIT/HZ)<<req->retrans);
+			tmp_opt.ts_recent_stamp = get_seconds() - ((TCP_TIMEOUT_INIT/HZ)<<req->num_timeout);
 			paws_reject = tcp_paws_reject(&tmp_opt, th->rst);
 		}
 	}
@@ -582,7 +582,7 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
 		 * Note that even if there is new data in the SYN packet
 		 * they will be thrown away too.
 		 */
-		req->rsk_ops->rtx_syn_ack(sk, req, NULL);
+		inet_rtx_syn_ack(sk, req);
 		return NULL;
 	}
 
@@ -696,7 +696,7 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
 	/* Got ACK for our SYNACK, so update baseline for SYNACK RTT sample. */
 	if (tmp_opt.saw_tstamp && tmp_opt.rcv_tsecr)
 		tcp_rsk(req)->snt_synack = tmp_opt.rcv_tsecr;
-	else if (req->retrans) /* don't take RTT sample if retrans && ~TS */
+	else if (req->num_retrans) /* don't take RTT sample if retrans && ~TS */
 		tcp_rsk(req)->snt_synack = 0;
 
 	/* For Fast Open no more processing is needed (sk is the
@@ -706,7 +706,7 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
 		return sk;
 
 	/* While TCP_DEFER_ACCEPT is active, drop bare ACK. */
-	if (req->retrans < inet_csk(sk)->icsk_accept_queue.rskq_defer_accept &&
+	if (req->num_timeout < inet_csk(sk)->icsk_accept_queue.rskq_defer_accept &&
 	    TCP_SKB_CB(skb)->end_seq == tcp_rsk(req)->rcv_isn + 1) {
 		inet_rsk(req)->acked = 1;
 		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPDEFERACCEPTDROP);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 948ac27..5d45159 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2992,6 +2992,11 @@ int tcp_connect(struct sock *sk)
 
 	tcp_connect_init(sk);
 
+	if (unlikely(tp->repair)) {
+		tcp_finish_connect(sk, NULL);
+		return 0;
+	}
+
 	buff = alloc_skb_fclone(MAX_TCP_HEADER + 15, sk->sk_allocation);
 	if (unlikely(buff == NULL))
 		return -ENOBUFS;
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index d47c1b4..b78aac3 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -318,7 +318,7 @@ static void tcp_fastopen_synack_timer(struct sock *sk)
 	req = tcp_sk(sk)->fastopen_rsk;
 	req->rsk_ops->syn_ack_timeout(sk, req);
 
-	if (req->retrans >= max_retries) {
+	if (req->num_timeout >= max_retries) {
 		tcp_write_err(sk);
 		return;
 	}
@@ -327,10 +327,10 @@ static void tcp_fastopen_synack_timer(struct sock *sk)
 	 * regular retransmit because if the child socket has been accepted
 	 * it's not good to give up too easily.
 	 */
-	req->rsk_ops->rtx_syn_ack(sk, req, NULL);
-	req->retrans++;
+	inet_rtx_syn_ack(sk, req);
+	req->num_timeout++;
 	inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,
-			  TCP_TIMEOUT_INIT << req->retrans, TCP_RTO_MAX);
+			  TCP_TIMEOUT_INIT << req->num_timeout, TCP_RTO_MAX);
 }
 
 /*
diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile
index b6d3f79..2068ac4 100644
--- a/net/ipv6/Makefile
+++ b/net/ipv6/Makefile
@@ -7,9 +7,11 @@ obj-$(CONFIG_IPV6) += ipv6.o
 ipv6-objs :=	af_inet6.o anycast.o ip6_output.o ip6_input.o addrconf.o \
 		addrlabel.o \
 		route.o ip6_fib.o ipv6_sockglue.o ndisc.o udp.o udplite.o \
-		raw.o protocol.o icmp.o mcast.o reassembly.o tcp_ipv6.o \
+		raw.o icmp.o mcast.o reassembly.o tcp_ipv6.o \
 		exthdrs.o datagram.o ip6_flowlabel.o inet6_connection_sock.o
 
+ipv6-offload :=	ip6_offload.o tcpv6_offload.o udp_offload.o exthdrs_offload.o
+
 ipv6-$(CONFIG_SYSCTL) = sysctl_net_ipv6.o
 ipv6-$(CONFIG_IPV6_MROUTE) += ip6mr.o
 
@@ -39,5 +41,6 @@ obj-$(CONFIG_IPV6_TUNNEL) += ip6_tunnel.o
 obj-$(CONFIG_IPV6_GRE) += ip6_gre.o
 
 obj-y += addrconf_core.o exthdrs_core.o
+obj-$(CONFIG_INET) += output_core.o protocol.o $(ipv6_offload)
 
 obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_hashtables.o
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 0424e4e..6fca01f 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -81,6 +81,7 @@
 #include <net/pkt_sched.h>
 #include <linux/if_tunnel.h>
 #include <linux/rtnetlink.h>
+#include <linux/netconf.h>
 
 #ifdef CONFIG_IPV6_PRIVACY
 #include <linux/random.h>
@@ -401,7 +402,7 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev)
 	if (dev->flags & (IFF_NOARP | IFF_LOOPBACK))
 		ndev->cnf.accept_dad = -1;
 
-#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_SIT)
 	if (dev->type == ARPHRD_SIT && (dev->priv_flags & IFF_ISATAP)) {
 		pr_info("%s: Disabled Multicast RS\n", dev->name);
 		ndev->cnf.rtr_solicits = 0;
@@ -460,6 +461,150 @@ static struct inet6_dev *ipv6_find_idev(struct net_device *dev)
 	return idev;
 }
 
+static int inet6_netconf_msgsize_devconf(int type)
+{
+	int size =  NLMSG_ALIGN(sizeof(struct netconfmsg))
+		    + nla_total_size(4);	/* NETCONFA_IFINDEX */
+
+	/* type -1 is used for ALL */
+	if (type == -1 || type == NETCONFA_FORWARDING)
+		size += nla_total_size(4);
+#ifdef CONFIG_IPV6_MROUTE
+	if (type == -1 || type == NETCONFA_MC_FORWARDING)
+		size += nla_total_size(4);
+#endif
+
+	return size;
+}
+
+static int inet6_netconf_fill_devconf(struct sk_buff *skb, int ifindex,
+				      struct ipv6_devconf *devconf, u32 portid,
+				      u32 seq, int event, unsigned int flags,
+				      int type)
+{
+	struct nlmsghdr  *nlh;
+	struct netconfmsg *ncm;
+
+	nlh = nlmsg_put(skb, portid, seq, event, sizeof(struct netconfmsg),
+			flags);
+	if (nlh == NULL)
+		return -EMSGSIZE;
+
+	ncm = nlmsg_data(nlh);
+	ncm->ncm_family = AF_INET6;
+
+	if (nla_put_s32(skb, NETCONFA_IFINDEX, ifindex) < 0)
+		goto nla_put_failure;
+
+	/* type -1 is used for ALL */
+	if ((type == -1 || type == NETCONFA_FORWARDING) &&
+	    nla_put_s32(skb, NETCONFA_FORWARDING, devconf->forwarding) < 0)
+		goto nla_put_failure;
+#ifdef CONFIG_IPV6_MROUTE
+	if ((type == -1 || type == NETCONFA_MC_FORWARDING) &&
+	    nla_put_s32(skb, NETCONFA_MC_FORWARDING,
+			devconf->mc_forwarding) < 0)
+		goto nla_put_failure;
+#endif
+	return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+	nlmsg_cancel(skb, nlh);
+	return -EMSGSIZE;
+}
+
+void inet6_netconf_notify_devconf(struct net *net, int type, int ifindex,
+				  struct ipv6_devconf *devconf)
+{
+	struct sk_buff *skb;
+	int err = -ENOBUFS;
+
+	skb = nlmsg_new(inet6_netconf_msgsize_devconf(type), GFP_ATOMIC);
+	if (skb == NULL)
+		goto errout;
+
+	err = inet6_netconf_fill_devconf(skb, ifindex, devconf, 0, 0,
+					 RTM_NEWNETCONF, 0, type);
+	if (err < 0) {
+		/* -EMSGSIZE implies BUG in inet6_netconf_msgsize_devconf() */
+		WARN_ON(err == -EMSGSIZE);
+		kfree_skb(skb);
+		goto errout;
+	}
+	rtnl_notify(skb, net, 0, RTNLGRP_IPV6_NETCONF, NULL, GFP_ATOMIC);
+	return;
+errout:
+	if (err < 0)
+		rtnl_set_sk_err(net, RTNLGRP_IPV6_NETCONF, err);
+}
+
+static const struct nla_policy devconf_ipv6_policy[NETCONFA_MAX+1] = {
+	[NETCONFA_IFINDEX]	= { .len = sizeof(int) },
+	[NETCONFA_FORWARDING]	= { .len = sizeof(int) },
+};
+
+static int inet6_netconf_get_devconf(struct sk_buff *in_skb,
+				     struct nlmsghdr *nlh,
+				     void *arg)
+{
+	struct net *net = sock_net(in_skb->sk);
+	struct nlattr *tb[NETCONFA_MAX+1];
+	struct netconfmsg *ncm;
+	struct sk_buff *skb;
+	struct ipv6_devconf *devconf;
+	struct inet6_dev *in6_dev;
+	struct net_device *dev;
+	int ifindex;
+	int err;
+
+	err = nlmsg_parse(nlh, sizeof(*ncm), tb, NETCONFA_MAX,
+			  devconf_ipv6_policy);
+	if (err < 0)
+		goto errout;
+
+	err = EINVAL;
+	if (!tb[NETCONFA_IFINDEX])
+		goto errout;
+
+	ifindex = nla_get_s32(tb[NETCONFA_IFINDEX]);
+	switch (ifindex) {
+	case NETCONFA_IFINDEX_ALL:
+		devconf = net->ipv6.devconf_all;
+		break;
+	case NETCONFA_IFINDEX_DEFAULT:
+		devconf = net->ipv6.devconf_dflt;
+		break;
+	default:
+		dev = __dev_get_by_index(net, ifindex);
+		if (dev == NULL)
+			goto errout;
+		in6_dev = __in6_dev_get(dev);
+		if (in6_dev == NULL)
+			goto errout;
+		devconf = &in6_dev->cnf;
+		break;
+	}
+
+	err = -ENOBUFS;
+	skb = nlmsg_new(inet6_netconf_msgsize_devconf(-1), GFP_ATOMIC);
+	if (skb == NULL)
+		goto errout;
+
+	err = inet6_netconf_fill_devconf(skb, ifindex, devconf,
+					 NETLINK_CB(in_skb).portid,
+					 nlh->nlmsg_seq, RTM_NEWNETCONF, 0,
+					 -1);
+	if (err < 0) {
+		/* -EMSGSIZE implies BUG in inet6_netconf_msgsize_devconf() */
+		WARN_ON(err == -EMSGSIZE);
+		kfree_skb(skb);
+		goto errout;
+	}
+	err = rtnl_unicast(skb, net, NETLINK_CB(in_skb).portid);
+errout:
+	return err;
+}
+
 #ifdef CONFIG_SYSCTL
 static void dev_forward_change(struct inet6_dev *idev)
 {
@@ -471,7 +616,7 @@ static void dev_forward_change(struct inet6_dev *idev)
 	dev = idev->dev;
 	if (idev->cnf.forwarding)
 		dev_disable_lro(dev);
-	if (dev && (dev->flags & IFF_MULTICAST)) {
+	if (dev->flags & IFF_MULTICAST) {
 		if (idev->cnf.forwarding)
 			ipv6_dev_mc_inc(dev, &in6addr_linklocal_allrouters);
 		else
@@ -486,6 +631,8 @@ static void dev_forward_change(struct inet6_dev *idev)
 		else
 			addrconf_leave_anycast(ifa);
 	}
+	inet6_netconf_notify_devconf(dev_net(dev), NETCONFA_FORWARDING,
+				     dev->ifindex, &idev->cnf);
 }
 
 
@@ -518,6 +665,10 @@ static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int newf)
 	*p = newf;
 
 	if (p == &net->ipv6.devconf_dflt->forwarding) {
+		if ((!newf) ^ (!old))
+			inet6_netconf_notify_devconf(net, NETCONFA_FORWARDING,
+						     NETCONFA_IFINDEX_DEFAULT,
+						     net->ipv6.devconf_dflt);
 		rtnl_unlock();
 		return 0;
 	}
@@ -525,6 +676,10 @@ static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int newf)
 	if (p == &net->ipv6.devconf_all->forwarding) {
 		net->ipv6.devconf_dflt->forwarding = newf;
 		addrconf_forward_change(net, newf);
+		if ((!newf) ^ (!old))
+			inet6_netconf_notify_devconf(net, NETCONFA_FORWARDING,
+						     NETCONFA_IFINDEX_ALL,
+						     net->ipv6.devconf_all);
 	} else if ((!newf) ^ (!old))
 		dev_forward_change((struct inet6_dev *)table->extra1);
 	rtnl_unlock();
@@ -553,7 +708,7 @@ void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp)
 		pr_warn("Freeing alive inet6 address %p\n", ifp);
 		return;
 	}
-	dst_release(&ifp->rt->dst);
+	ip6_rt_put(ifp->rt);
 
 	kfree_rcu(ifp, rcu);
 }
@@ -805,7 +960,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
 				rt6_set_expires(rt, expires);
 			}
 		}
-		dst_release(&rt->dst);
+		ip6_rt_put(rt);
 	}
 
 	/* clean up prefsrc entries */
@@ -1692,7 +1847,7 @@ addrconf_prefix_route(struct in6_addr *pfx, int plen, struct net_device *dev,
 	   This thing is done here expecting that the whole
 	   class of non-broadcast devices need not cloning.
 	 */
-#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_SIT)
 	if (dev->type == ARPHRD_SIT && (dev->flags & IFF_POINTOPOINT))
 		cfg.fc_flags |= RTF_NONEXTHOP;
 #endif
@@ -1752,7 +1907,7 @@ static void addrconf_add_mroute(struct net_device *dev)
 	ip6_route_add(&cfg);
 }
 
-#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_SIT)
 static void sit_route_add(struct net_device *dev)
 {
 	struct fib6_config cfg = {
@@ -1881,8 +2036,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len, bool sllao)
 			addrconf_prefix_route(&pinfo->prefix, pinfo->prefix_len,
 					      dev, expires, flags);
 		}
-		if (rt)
-			dst_release(&rt->dst);
+		ip6_rt_put(rt);
 	}
 
 	/* Try to figure out our local address for this prefix */
@@ -2104,7 +2258,7 @@ int addrconf_set_dstaddr(struct net *net, void __user *arg)
 	if (dev == NULL)
 		goto err_exit;
 
-#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_SIT)
 	if (dev->type == ARPHRD_SIT) {
 		const struct net_device_ops *ops = dev->netdev_ops;
 		struct ifreq ifr;
@@ -2268,7 +2422,7 @@ int addrconf_add_ifaddr(struct net *net, void __user *arg)
 	struct in6_ifreq ireq;
 	int err;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	if (copy_from_user(&ireq, arg, sizeof(struct in6_ifreq)))
@@ -2287,7 +2441,7 @@ int addrconf_del_ifaddr(struct net *net, void __user *arg)
 	struct in6_ifreq ireq;
 	int err;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	if (copy_from_user(&ireq, arg, sizeof(struct in6_ifreq)))
@@ -2315,7 +2469,7 @@ static void add_addr(struct inet6_dev *idev, const struct in6_addr *addr,
 	}
 }
 
-#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_SIT)
 static void sit_add_v4_addrs(struct inet6_dev *idev)
 {
 	struct in6_addr addr;
@@ -2434,7 +2588,7 @@ static void addrconf_dev_config(struct net_device *dev)
 		addrconf_add_linklocal(idev, &addr);
 }
 
-#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_SIT)
 static void addrconf_sit_config(struct net_device *dev)
 {
 	struct inet6_dev *idev;
@@ -2471,7 +2625,7 @@ static void addrconf_sit_config(struct net_device *dev)
 }
 #endif
 
-#if defined(CONFIG_NET_IPGRE) || defined(CONFIG_NET_IPGRE_MODULE)
+#if IS_ENABLED(CONFIG_NET_IPGRE)
 static void addrconf_gre_config(struct net_device *dev)
 {
 	struct inet6_dev *idev;
@@ -2601,12 +2755,12 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
 		}
 
 		switch (dev->type) {
-#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_SIT)
 		case ARPHRD_SIT:
 			addrconf_sit_config(dev);
 			break;
 #endif
-#if defined(CONFIG_NET_IPGRE) || defined(CONFIG_NET_IPGRE_MODULE)
+#if IS_ENABLED(CONFIG_NET_IPGRE)
 		case ARPHRD_IPGRE:
 			addrconf_gre_config(dev);
 			break;
@@ -2843,7 +2997,7 @@ static void addrconf_rs_timer(unsigned long data)
 	if (idev->dead || !(idev->if_flags & IF_READY))
 		goto out;
 
-	if (idev->cnf.forwarding)
+	if (!ipv6_accept_ra(idev))
 		goto out;
 
 	/* Announcement received after solicitation was sent */
@@ -3005,8 +3159,7 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
 	   router advertisements, start sending router solicitations.
 	 */
 
-	if (((ifp->idev->cnf.accept_ra == 1 && !ifp->idev->cnf.forwarding) ||
-	     ifp->idev->cnf.accept_ra == 2) &&
+	if (ipv6_accept_ra(ifp->idev) &&
 	    ifp->idev->cnf.rtr_solicits > 0 &&
 	    (dev->flags&IFF_LOOPBACK) == 0 &&
 	    (ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)) {
@@ -3194,7 +3347,7 @@ void if6_proc_exit(void)
 }
 #endif	/* CONFIG_PROC_FS */
 
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 /* Check if address is a home address configured on any interface. */
 int ipv6_chk_home_addr(struct net *net, const struct in6_addr *addr)
 {
@@ -3892,6 +4045,7 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
 	array[DEVCONF_DISABLE_IPV6] = cnf->disable_ipv6;
 	array[DEVCONF_ACCEPT_DAD] = cnf->accept_dad;
 	array[DEVCONF_FORCE_TLLAO] = cnf->force_tllao;
+	array[DEVCONF_NDISC_NOTIFY] = cnf->ndisc_notify;
 }
 
 static inline size_t inet6_ifla6_size(void)
@@ -4560,6 +4714,13 @@ static struct addrconf_sysctl_table
 			.proc_handler   = proc_dointvec
 		},
 		{
+			.procname       = "ndisc_notify",
+			.data           = &ipv6_devconf.ndisc_notify,
+			.maxlen         = sizeof(int),
+			.mode           = 0644,
+			.proc_handler   = proc_dointvec
+		},
+		{
 			/* sentinel */
 		}
 	},
@@ -4784,6 +4945,8 @@ int __init addrconf_init(void)
 			inet6_dump_ifmcaddr, NULL);
 	__rtnl_register(PF_INET6, RTM_GETANYCAST, NULL,
 			inet6_dump_ifacaddr, NULL);
+	__rtnl_register(PF_INET6, RTM_GETNETCONF, inet6_netconf_get_devconf,
+			NULL, NULL);
 
 	ipv6_addr_label_rtnl_register();
 
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index a974247..b043c60 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -160,7 +160,8 @@ lookup_protocol:
 	}
 
 	err = -EPERM;
-	if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW))
+	if (sock->type == SOCK_RAW && !kern &&
+	    !ns_capable(net->user_ns, CAP_NET_RAW))
 		goto out_rcu_unlock;
 
 	sock->ops = answer->ops;
@@ -282,7 +283,7 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 		return -EINVAL;
 
 	snum = ntohs(addr->sin6_port);
-	if (snum && snum < PROT_SOCK && !capable(CAP_NET_BIND_SERVICE))
+	if (snum && snum < PROT_SOCK && !ns_capable(net->user_ns, CAP_NET_BIND_SERVICE))
 		return -EACCES;
 
 	lock_sock(sk);
@@ -699,249 +700,9 @@ bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb)
 }
 EXPORT_SYMBOL_GPL(ipv6_opt_accepted);
 
-static int ipv6_gso_pull_exthdrs(struct sk_buff *skb, int proto)
-{
-	const struct inet6_protocol *ops = NULL;
-
-	for (;;) {
-		struct ipv6_opt_hdr *opth;
-		int len;
-
-		if (proto != NEXTHDR_HOP) {
-			ops = rcu_dereference(inet6_protos[proto]);
-
-			if (unlikely(!ops))
-				break;
-
-			if (!(ops->flags & INET6_PROTO_GSO_EXTHDR))
-				break;
-		}
-
-		if (unlikely(!pskb_may_pull(skb, 8)))
-			break;
-
-		opth = (void *)skb->data;
-		len = ipv6_optlen(opth);
-
-		if (unlikely(!pskb_may_pull(skb, len)))
-			break;
-
-		proto = opth->nexthdr;
-		__skb_pull(skb, len);
-	}
-
-	return proto;
-}
-
-static int ipv6_gso_send_check(struct sk_buff *skb)
-{
-	const struct ipv6hdr *ipv6h;
-	const struct inet6_protocol *ops;
-	int err = -EINVAL;
-
-	if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
-		goto out;
-
-	ipv6h = ipv6_hdr(skb);
-	__skb_pull(skb, sizeof(*ipv6h));
-	err = -EPROTONOSUPPORT;
-
-	rcu_read_lock();
-	ops = rcu_dereference(inet6_protos[
-		ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr)]);
-
-	if (likely(ops && ops->gso_send_check)) {
-		skb_reset_transport_header(skb);
-		err = ops->gso_send_check(skb);
-	}
-	rcu_read_unlock();
-
-out:
-	return err;
-}
-
-static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
-	netdev_features_t features)
-{
-	struct sk_buff *segs = ERR_PTR(-EINVAL);
-	struct ipv6hdr *ipv6h;
-	const struct inet6_protocol *ops;
-	int proto;
-	struct frag_hdr *fptr;
-	unsigned int unfrag_ip6hlen;
-	u8 *prevhdr;
-	int offset = 0;
-
-	if (!(features & NETIF_F_V6_CSUM))
-		features &= ~NETIF_F_SG;
-
-	if (unlikely(skb_shinfo(skb)->gso_type &
-		     ~(SKB_GSO_UDP |
-		       SKB_GSO_DODGY |
-		       SKB_GSO_TCP_ECN |
-		       SKB_GSO_TCPV6 |
-		       0)))
-		goto out;
-
-	if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
-		goto out;
-
-	ipv6h = ipv6_hdr(skb);
-	__skb_pull(skb, sizeof(*ipv6h));
-	segs = ERR_PTR(-EPROTONOSUPPORT);
-
-	proto = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
-	rcu_read_lock();
-	ops = rcu_dereference(inet6_protos[proto]);
-	if (likely(ops && ops->gso_segment)) {
-		skb_reset_transport_header(skb);
-		segs = ops->gso_segment(skb, features);
-	}
-	rcu_read_unlock();
-
-	if (IS_ERR(segs))
-		goto out;
-
-	for (skb = segs; skb; skb = skb->next) {
-		ipv6h = ipv6_hdr(skb);
-		ipv6h->payload_len = htons(skb->len - skb->mac_len -
-					   sizeof(*ipv6h));
-		if (proto == IPPROTO_UDP) {
-			unfrag_ip6hlen = ip6_find_1stfragopt(skb, &prevhdr);
-			fptr = (struct frag_hdr *)(skb_network_header(skb) +
-				unfrag_ip6hlen);
-			fptr->frag_off = htons(offset);
-			if (skb->next != NULL)
-				fptr->frag_off |= htons(IP6_MF);
-			offset += (ntohs(ipv6h->payload_len) -
-				   sizeof(struct frag_hdr));
-		}
-	}
-
-out:
-	return segs;
-}
-
-static struct sk_buff **ipv6_gro_receive(struct sk_buff **head,
-					 struct sk_buff *skb)
-{
-	const struct inet6_protocol *ops;
-	struct sk_buff **pp = NULL;
-	struct sk_buff *p;
-	struct ipv6hdr *iph;
-	unsigned int nlen;
-	unsigned int hlen;
-	unsigned int off;
-	int flush = 1;
-	int proto;
-	__wsum csum;
-
-	off = skb_gro_offset(skb);
-	hlen = off + sizeof(*iph);
-	iph = skb_gro_header_fast(skb, off);
-	if (skb_gro_header_hard(skb, hlen)) {
-		iph = skb_gro_header_slow(skb, hlen, off);
-		if (unlikely(!iph))
-			goto out;
-	}
-
-	skb_gro_pull(skb, sizeof(*iph));
-	skb_set_transport_header(skb, skb_gro_offset(skb));
-
-	flush += ntohs(iph->payload_len) != skb_gro_len(skb);
-
-	rcu_read_lock();
-	proto = iph->nexthdr;
-	ops = rcu_dereference(inet6_protos[proto]);
-	if (!ops || !ops->gro_receive) {
-		__pskb_pull(skb, skb_gro_offset(skb));
-		proto = ipv6_gso_pull_exthdrs(skb, proto);
-		skb_gro_pull(skb, -skb_transport_offset(skb));
-		skb_reset_transport_header(skb);
-		__skb_push(skb, skb_gro_offset(skb));
-
-		ops = rcu_dereference(inet6_protos[proto]);
-		if (!ops || !ops->gro_receive)
-			goto out_unlock;
-
-		iph = ipv6_hdr(skb);
-	}
-
-	NAPI_GRO_CB(skb)->proto = proto;
-
-	flush--;
-	nlen = skb_network_header_len(skb);
-
-	for (p = *head; p; p = p->next) {
-		const struct ipv6hdr *iph2;
-		__be32 first_word; /* <Version:4><Traffic_Class:8><Flow_Label:20> */
-
-		if (!NAPI_GRO_CB(p)->same_flow)
-			continue;
-
-		iph2 = ipv6_hdr(p);
-		first_word = *(__be32 *)iph ^ *(__be32 *)iph2 ;
-
-		/* All fields must match except length and Traffic Class. */
-		if (nlen != skb_network_header_len(p) ||
-		    (first_word & htonl(0xF00FFFFF)) ||
-		    memcmp(&iph->nexthdr, &iph2->nexthdr,
-			   nlen - offsetof(struct ipv6hdr, nexthdr))) {
-			NAPI_GRO_CB(p)->same_flow = 0;
-			continue;
-		}
-		/* flush if Traffic Class fields are different */
-		NAPI_GRO_CB(p)->flush |= !!(first_word & htonl(0x0FF00000));
-		NAPI_GRO_CB(p)->flush |= flush;
-	}
-
-	NAPI_GRO_CB(skb)->flush |= flush;
-
-	csum = skb->csum;
-	skb_postpull_rcsum(skb, iph, skb_network_header_len(skb));
-
-	pp = ops->gro_receive(head, skb);
-
-	skb->csum = csum;
-
-out_unlock:
-	rcu_read_unlock();
-
-out:
-	NAPI_GRO_CB(skb)->flush |= flush;
-
-	return pp;
-}
-
-static int ipv6_gro_complete(struct sk_buff *skb)
-{
-	const struct inet6_protocol *ops;
-	struct ipv6hdr *iph = ipv6_hdr(skb);
-	int err = -ENOSYS;
-
-	iph->payload_len = htons(skb->len - skb_network_offset(skb) -
-				 sizeof(*iph));
-
-	rcu_read_lock();
-	ops = rcu_dereference(inet6_protos[NAPI_GRO_CB(skb)->proto]);
-	if (WARN_ON(!ops || !ops->gro_complete))
-		goto out_unlock;
-
-	err = ops->gro_complete(skb);
-
-out_unlock:
-	rcu_read_unlock();
-
-	return err;
-}
-
 static struct packet_type ipv6_packet_type __read_mostly = {
 	.type = cpu_to_be16(ETH_P_IPV6),
 	.func = ipv6_rcv,
-	.gso_send_check = ipv6_gso_send_check,
-	.gso_segment = ipv6_gso_segment,
-	.gro_receive = ipv6_gro_receive,
-	.gro_complete = ipv6_gro_complete,
 };
 
 static int __init ipv6_packet_init(void)
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 7e61395..ecc35b9 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -44,7 +44,7 @@
 #define IPV6HDR_BASELEN 8
 
 struct tmp_ext {
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 		struct in6_addr saddr;
 #endif
 		struct in6_addr daddr;
@@ -152,7 +152,7 @@ bad:
 	return false;
 }
 
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 /**
  *	ipv6_rearrange_destopt - rearrange IPv6 destination options header
  *	@iph: IPv6 header
@@ -320,7 +320,7 @@ static void ah6_output_done(struct crypto_async_request *base, int err)
 	memcpy(top_iph, iph_base, IPV6HDR_BASELEN);
 
 	if (extlen) {
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 		memcpy(&top_iph->saddr, iph_ext, extlen);
 #else
 		memcpy(&top_iph->daddr, iph_ext, extlen);
@@ -385,7 +385,7 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
 	memcpy(iph_base, top_iph, IPV6HDR_BASELEN);
 
 	if (extlen) {
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 		memcpy(iph_ext, &top_iph->saddr, extlen);
 #else
 		memcpy(iph_ext, &top_iph->daddr, extlen);
@@ -434,7 +434,7 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
 	memcpy(top_iph, iph_base, IPV6HDR_BASELEN);
 
 	if (extlen) {
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 		memcpy(&top_iph->saddr, iph_ext, extlen);
 #else
 		memcpy(&top_iph->daddr, iph_ext, extlen);
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index cdf02be..757a810 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -64,7 +64,7 @@ int ipv6_sock_ac_join(struct sock *sk, int ifindex, const struct in6_addr *addr)
 	int	ishost = !net->ipv6.devconf_all->forwarding;
 	int	err = 0;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 	if (ipv6_addr_is_multicast(addr))
 		return -EINVAL;
@@ -84,7 +84,7 @@ int ipv6_sock_ac_join(struct sock *sk, int ifindex, const struct in6_addr *addr)
 		rt = rt6_lookup(net, addr, NULL, 0, 0);
 		if (rt) {
 			dev = rt->dst.dev;
-			dst_release(&rt->dst);
+			ip6_rt_put(rt);
 		} else if (ishost) {
 			err = -EADDRNOTAVAIL;
 			goto error;
@@ -189,6 +189,9 @@ void ipv6_sock_ac_close(struct sock *sk)
 	struct net *net = sock_net(sk);
 	int	prev_index;
 
+	if (!np->ipv6_ac_list)
+		return;
+
 	write_lock_bh(&ipv6_sk_ac_lock);
 	pac = np->ipv6_ac_list;
 	np->ipv6_ac_list = NULL;
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index be2b67d6..8edf260 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -701,7 +701,7 @@ int datagram_send_ctl(struct net *net, struct sock *sk,
 				err = -EINVAL;
 				goto exit_f;
 			}
-			if (!capable(CAP_NET_RAW)) {
+			if (!ns_capable(net->user_ns, CAP_NET_RAW)) {
 				err = -EPERM;
 				goto exit_f;
 			}
@@ -721,7 +721,7 @@ int datagram_send_ctl(struct net *net, struct sock *sk,
 				err = -EINVAL;
 				goto exit_f;
 			}
-			if (!capable(CAP_NET_RAW)) {
+			if (!ns_capable(net->user_ns, CAP_NET_RAW)) {
 				err = -EPERM;
 				goto exit_f;
 			}
@@ -746,7 +746,7 @@ int datagram_send_ctl(struct net *net, struct sock *sk,
 				err = -EINVAL;
 				goto exit_f;
 			}
-			if (!capable(CAP_NET_RAW)) {
+			if (!ns_capable(net->user_ns, CAP_NET_RAW)) {
 				err = -EPERM;
 				goto exit_f;
 			}
@@ -769,7 +769,7 @@ int datagram_send_ctl(struct net *net, struct sock *sk,
 			rthdr = (struct ipv6_rt_hdr *)CMSG_DATA(cmsg);
 
 			switch (rthdr->type) {
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 			case IPV6_SRCRT_TYPE_2:
 				if (rthdr->hdrlen != 2 ||
 				    rthdr->segments_left != 1) {
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index fa3d9c3..473f628 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -43,56 +43,12 @@
 #include <net/ndisc.h>
 #include <net/ip6_route.h>
 #include <net/addrconf.h>
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 #include <net/xfrm.h>
 #endif
 
 #include <asm/uaccess.h>
 
-int ipv6_find_tlv(struct sk_buff *skb, int offset, int type)
-{
-	const unsigned char *nh = skb_network_header(skb);
-	int packet_len = skb->tail - skb->network_header;
-	struct ipv6_opt_hdr *hdr;
-	int len;
-
-	if (offset + 2 > packet_len)
-		goto bad;
-	hdr = (struct ipv6_opt_hdr *)(nh + offset);
-	len = ((hdr->hdrlen + 1) << 3);
-
-	if (offset + len > packet_len)
-		goto bad;
-
-	offset += 2;
-	len -= 2;
-
-	while (len > 0) {
-		int opttype = nh[offset];
-		int optlen;
-
-		if (opttype == type)
-			return offset;
-
-		switch (opttype) {
-		case IPV6_TLV_PAD1:
-			optlen = 1;
-			break;
-		default:
-			optlen = nh[offset + 1] + 2;
-			if (optlen > len)
-				goto bad;
-			break;
-		}
-		offset += optlen;
-		len -= optlen;
-	}
-	/* not_found */
- bad:
-	return -1;
-}
-EXPORT_SYMBOL_GPL(ipv6_find_tlv);
-
 /*
  *	Parsing tlv encoded headers.
  *
@@ -224,7 +180,7 @@ bad:
   Destination options header.
  *****************************/
 
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 static bool ipv6_dest_hao(struct sk_buff *skb, int optoff)
 {
 	struct ipv6_destopt_hao *hao;
@@ -288,7 +244,7 @@ static bool ipv6_dest_hao(struct sk_buff *skb, int optoff)
 #endif
 
 static const struct tlvtype_proc tlvprocdestopt_lst[] = {
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 	{
 		.type	= IPV6_TLV_HAO,
 		.func	= ipv6_dest_hao,
@@ -300,7 +256,7 @@ static const struct tlvtype_proc tlvprocdestopt_lst[] = {
 static int ipv6_destopt_rcv(struct sk_buff *skb)
 {
 	struct inet6_skb_parm *opt = IP6CB(skb);
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 	__u16 dstbuf;
 #endif
 	struct dst_entry *dst = skb_dst(skb);
@@ -315,14 +271,14 @@ static int ipv6_destopt_rcv(struct sk_buff *skb)
 	}
 
 	opt->lastopt = opt->dst1 = skb_network_header_len(skb);
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 	dstbuf = opt->dst1;
 #endif
 
 	if (ip6_parse_tlv(tlvprocdestopt_lst, skb)) {
 		skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3;
 		opt = IP6CB(skb);
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 		opt->nhoff = dstbuf;
 #else
 		opt->nhoff = opt->dst1;
@@ -378,7 +334,7 @@ static int ipv6_rthdr_rcv(struct sk_buff *skb)
 looped_back:
 	if (hdr->segments_left == 0) {
 		switch (hdr->type) {
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 		case IPV6_SRCRT_TYPE_2:
 			/* Silently discard type 2 header unless it was
 			 * processed by own
@@ -404,7 +360,7 @@ looped_back:
 	}
 
 	switch (hdr->type) {
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 	case IPV6_SRCRT_TYPE_2:
 		if (accept_source_route < 0)
 			goto unknown_rh;
@@ -461,7 +417,7 @@ looped_back:
 	addr += i - 1;
 
 	switch (hdr->type) {
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 	case IPV6_SRCRT_TYPE_2:
 		if (xfrm6_input_addr(skb, (xfrm_address_t *)addr,
 				     (xfrm_address_t *)&ipv6_hdr(skb)->saddr,
@@ -528,12 +484,12 @@ unknown_rh:
 
 static const struct inet6_protocol rthdr_protocol = {
 	.handler	=	ipv6_rthdr_rcv,
-	.flags		=	INET6_PROTO_NOPOLICY | INET6_PROTO_GSO_EXTHDR,
+	.flags		=	INET6_PROTO_NOPOLICY,
 };
 
 static const struct inet6_protocol destopt_protocol = {
 	.handler	=	ipv6_destopt_rcv,
-	.flags		=	INET6_PROTO_NOPOLICY | INET6_PROTO_GSO_EXTHDR,
+	.flags		=	INET6_PROTO_NOPOLICY,
 };
 
 static const struct inet6_protocol nodata_protocol = {
@@ -559,10 +515,10 @@ int __init ipv6_exthdrs_init(void)
 
 out:
 	return ret;
-out_rthdr:
-	inet6_del_protocol(&rthdr_protocol, IPPROTO_ROUTING);
 out_destopt:
 	inet6_del_protocol(&destopt_protocol, IPPROTO_DSTOPTS);
+out_rthdr:
+	inet6_del_protocol(&rthdr_protocol, IPPROTO_ROUTING);
 	goto out;
 };
 
diff --git a/net/ipv6/exthdrs_core.c b/net/ipv6/exthdrs_core.c
index f73d59a..c5e83fa 100644
--- a/net/ipv6/exthdrs_core.c
+++ b/net/ipv6/exthdrs_core.c
@@ -111,3 +111,171 @@ int ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp,
 	return start;
 }
 EXPORT_SYMBOL(ipv6_skip_exthdr);
+
+int ipv6_find_tlv(struct sk_buff *skb, int offset, int type)
+{
+	const unsigned char *nh = skb_network_header(skb);
+	int packet_len = skb->tail - skb->network_header;
+	struct ipv6_opt_hdr *hdr;
+	int len;
+
+	if (offset + 2 > packet_len)
+		goto bad;
+	hdr = (struct ipv6_opt_hdr *)(nh + offset);
+	len = ((hdr->hdrlen + 1) << 3);
+
+	if (offset + len > packet_len)
+		goto bad;
+
+	offset += 2;
+	len -= 2;
+
+	while (len > 0) {
+		int opttype = nh[offset];
+		int optlen;
+
+		if (opttype == type)
+			return offset;
+
+		switch (opttype) {
+		case IPV6_TLV_PAD1:
+			optlen = 1;
+			break;
+		default:
+			optlen = nh[offset + 1] + 2;
+			if (optlen > len)
+				goto bad;
+			break;
+		}
+		offset += optlen;
+		len -= optlen;
+	}
+	/* not_found */
+ bad:
+	return -1;
+}
+EXPORT_SYMBOL_GPL(ipv6_find_tlv);
+
+/*
+ * find the offset to specified header or the protocol number of last header
+ * if target < 0. "last header" is transport protocol header, ESP, or
+ * "No next header".
+ *
+ * Note that *offset is used as input/output parameter. an if it is not zero,
+ * then it must be a valid offset to an inner IPv6 header. This can be used
+ * to explore inner IPv6 header, eg. ICMPv6 error messages.
+ *
+ * If target header is found, its offset is set in *offset and return protocol
+ * number. Otherwise, return -1.
+ *
+ * If the first fragment doesn't contain the final protocol header or
+ * NEXTHDR_NONE it is considered invalid.
+ *
+ * Note that non-1st fragment is special case that "the protocol number
+ * of last header" is "next header" field in Fragment header. In this case,
+ * *offset is meaningless and fragment offset is stored in *fragoff if fragoff
+ * isn't NULL.
+ *
+ * if flags is not NULL and it's a fragment, then the frag flag
+ * IP6_FH_F_FRAG will be set. If it's an AH header, the
+ * IP6_FH_F_AUTH flag is set and target < 0, then this function will
+ * stop at the AH header. If IP6_FH_F_SKIP_RH flag was passed, then this
+ * function will skip all those routing headers, where segements_left was 0.
+ */
+int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
+		  int target, unsigned short *fragoff, int *flags)
+{
+	unsigned int start = skb_network_offset(skb) + sizeof(struct ipv6hdr);
+	u8 nexthdr = ipv6_hdr(skb)->nexthdr;
+	unsigned int len;
+	bool found;
+
+	if (fragoff)
+		*fragoff = 0;
+
+	if (*offset) {
+		struct ipv6hdr _ip6, *ip6;
+
+		ip6 = skb_header_pointer(skb, *offset, sizeof(_ip6), &_ip6);
+		if (!ip6 || (ip6->version != 6)) {
+			printk(KERN_ERR "IPv6 header not found\n");
+			return -EBADMSG;
+		}
+		start = *offset + sizeof(struct ipv6hdr);
+		nexthdr = ip6->nexthdr;
+	}
+	len = skb->len - start;
+
+	do {
+		struct ipv6_opt_hdr _hdr, *hp;
+		unsigned int hdrlen;
+		found = (nexthdr == target);
+
+		if ((!ipv6_ext_hdr(nexthdr)) || nexthdr == NEXTHDR_NONE) {
+			if (target < 0)
+				break;
+			return -ENOENT;
+		}
+
+		hp = skb_header_pointer(skb, start, sizeof(_hdr), &_hdr);
+		if (hp == NULL)
+			return -EBADMSG;
+
+		if (nexthdr == NEXTHDR_ROUTING) {
+			struct ipv6_rt_hdr _rh, *rh;
+
+			rh = skb_header_pointer(skb, start, sizeof(_rh),
+						&_rh);
+			if (rh == NULL)
+				return -EBADMSG;
+
+			if (flags && (*flags & IP6_FH_F_SKIP_RH) &&
+			    rh->segments_left == 0)
+				found = false;
+		}
+
+		if (nexthdr == NEXTHDR_FRAGMENT) {
+			unsigned short _frag_off;
+			__be16 *fp;
+
+			if (flags)	/* Indicate that this is a fragment */
+				*flags |= IP6_FH_F_FRAG;
+			fp = skb_header_pointer(skb,
+						start+offsetof(struct frag_hdr,
+							       frag_off),
+						sizeof(_frag_off),
+						&_frag_off);
+			if (fp == NULL)
+				return -EBADMSG;
+
+			_frag_off = ntohs(*fp) & ~0x7;
+			if (_frag_off) {
+				if (target < 0 &&
+				    ((!ipv6_ext_hdr(hp->nexthdr)) ||
+				     hp->nexthdr == NEXTHDR_NONE)) {
+					if (fragoff)
+						*fragoff = _frag_off;
+					return hp->nexthdr;
+				}
+				return -ENOENT;
+			}
+			hdrlen = 8;
+		} else if (nexthdr == NEXTHDR_AUTH) {
+			if (flags && (*flags & IP6_FH_F_AUTH) && (target < 0))
+				break;
+			hdrlen = (hp->hdrlen + 2) << 2;
+		} else
+			hdrlen = ipv6_optlen(hp);
+
+		if (!found) {
+			nexthdr = hp->nexthdr;
+			len -= hdrlen;
+			start += hdrlen;
+		}
+	} while (!found);
+
+	*offset = start;
+	return nexthdr;
+}
+EXPORT_SYMBOL(ipv6_find_hdr);
+
diff --git a/net/ipv6/exthdrs_offload.c b/net/ipv6/exthdrs_offload.c
new file mode 100644
index 0000000..cf77f3a
--- /dev/null
+++ b/net/ipv6/exthdrs_offload.c
@@ -0,0 +1,41 @@
+/*
+ *	IPV6 GSO/GRO offload support
+ *	Linux INET6 implementation
+ *
+ *	This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ *      IPV6 Extension Header GSO/GRO support
+ */
+#include <net/protocol.h>
+#include "ip6_offload.h"
+
+static const struct net_offload rthdr_offload = {
+	.flags		=	INET6_PROTO_GSO_EXTHDR,
+};
+
+static const struct net_offload dstopt_offload = {
+	.flags		=	INET6_PROTO_GSO_EXTHDR,
+};
+
+int __init ipv6_exthdrs_offload_init(void)
+{
+	int ret;
+
+	ret = inet6_add_offload(&rthdr_offload, IPPROTO_ROUTING);
+	if (!ret)
+		goto out;
+
+	ret = inet6_add_offload(&dstopt_offload, IPPROTO_DSTOPTS);
+	if (!ret)
+		goto out_rt;
+
+out:
+	return ret;
+
+out_rt:
+	inet_del_offload(&rthdr_offload, IPPROTO_ROUTING);
+	goto out;
+}
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index d9fb911..2e1a432 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -100,7 +100,7 @@ static int fib6_rule_action(struct fib_rule *rule, struct flowi *flp,
 		goto out;
 	}
 again:
-	dst_release(&rt->dst);
+	ip6_rt_put(rt);
 	rt = NULL;
 	goto out;
 
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 24d69db..b4a9fd5 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -280,7 +280,7 @@ static int icmpv6_getfrag(void *from, char *to, int offset, int len, int odd, st
 	return 0;
 }
 
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 static void mip6_addr_swap(struct sk_buff *skb)
 {
 	struct ipv6hdr *iph = ipv6_hdr(skb);
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 73f1a00..dea17fd 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -87,11 +87,13 @@ struct sock *__inet6_lookup_established(struct net *net,
 	rcu_read_lock();
 begin:
 	sk_nulls_for_each_rcu(sk, node, &head->chain) {
-		/* For IPV6 do the cheaper port and family tests first. */
-		if (INET6_MATCH(sk, net, hash, saddr, daddr, ports, dif)) {
+		if (sk->sk_hash != hash)
+			continue;
+		if (likely(INET6_MATCH(sk, net, saddr, daddr, ports, dif))) {
 			if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt)))
 				goto begintw;
-			if (!INET6_MATCH(sk, net, hash, saddr, daddr, ports, dif)) {
+			if (unlikely(!INET6_MATCH(sk, net, saddr, daddr,
+						  ports, dif))) {
 				sock_put(sk);
 				goto begin;
 			}
@@ -104,12 +106,16 @@ begin:
 begintw:
 	/* Must check for a TIME_WAIT'er before going to listener hash. */
 	sk_nulls_for_each_rcu(sk, node, &head->twchain) {
-		if (INET6_TW_MATCH(sk, net, hash, saddr, daddr, ports, dif)) {
+		if (sk->sk_hash != hash)
+			continue;
+		if (likely(INET6_TW_MATCH(sk, net, saddr, daddr,
+					  ports, dif))) {
 			if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt))) {
 				sk = NULL;
 				goto out;
 			}
-			if (!INET6_TW_MATCH(sk, net, hash, saddr, daddr, ports, dif)) {
+			if (unlikely(!INET6_TW_MATCH(sk, net, saddr, daddr,
+						     ports, dif))) {
 				sock_put(sk);
 				goto begintw;
 			}
@@ -236,9 +242,12 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row,
 
 	/* Check TIME-WAIT sockets first. */
 	sk_nulls_for_each(sk2, node, &head->twchain) {
-		tw = inet_twsk(sk2);
+		if (sk2->sk_hash != hash)
+			continue;
 
-		if (INET6_TW_MATCH(sk2, net, hash, saddr, daddr, ports, dif)) {
+		if (likely(INET6_TW_MATCH(sk2, net, saddr, daddr,
+					  ports, dif))) {
+			tw = inet_twsk(sk2);
 			if (twsk_unique(sk, sk2, twp))
 				goto unique;
 			else
@@ -249,7 +258,9 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row,
 
 	/* And established part... */
 	sk_nulls_for_each(sk2, node, &head->chain) {
-		if (INET6_MATCH(sk2, net, hash, saddr, daddr, ports, dif))
+		if (sk2->sk_hash != hash)
+			continue;
+		if (likely(INET6_MATCH(sk2, net, saddr, daddr, ports, dif)))
 			goto not_unique;
 	}
 
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 24995a9..710cafd 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -672,6 +672,8 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt,
 			    iter->rt6i_idev == rt->rt6i_idev &&
 			    ipv6_addr_equal(&iter->rt6i_gateway,
 					    &rt->rt6i_gateway)) {
+				if (rt->rt6i_nsiblings)
+					rt->rt6i_nsiblings = 0;
 				if (!(iter->rt6i_flags & RTF_EXPIRES))
 					return -EEXIST;
 				if (!(rt->rt6i_flags & RTF_EXPIRES))
@@ -680,6 +682,21 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt,
 					rt6_set_expires(iter, rt->dst.expires);
 				return -EEXIST;
 			}
+			/* If we have the same destination and the same metric,
+			 * but not the same gateway, then the route we try to
+			 * add is sibling to this route, increment our counter
+			 * of siblings, and later we will add our route to the
+			 * list.
+			 * Only static routes (which don't have flag
+			 * RTF_EXPIRES) are used for ECMPv6.
+			 *
+			 * To avoid long list, we only had siblings if the
+			 * route have a gateway.
+			 */
+			if (rt->rt6i_flags & RTF_GATEWAY &&
+			    !(rt->rt6i_flags & RTF_EXPIRES) &&
+			    !(iter->rt6i_flags & RTF_EXPIRES))
+				rt->rt6i_nsiblings++;
 		}
 
 		if (iter->rt6i_metric > rt->rt6i_metric)
@@ -692,6 +709,35 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt,
 	if (ins == &fn->leaf)
 		fn->rr_ptr = NULL;
 
+	/* Link this route to others same route. */
+	if (rt->rt6i_nsiblings) {
+		unsigned int rt6i_nsiblings;
+		struct rt6_info *sibling, *temp_sibling;
+
+		/* Find the first route that have the same metric */
+		sibling = fn->leaf;
+		while (sibling) {
+			if (sibling->rt6i_metric == rt->rt6i_metric) {
+				list_add_tail(&rt->rt6i_siblings,
+					      &sibling->rt6i_siblings);
+				break;
+			}
+			sibling = sibling->dst.rt6_next;
+		}
+		/* For each sibling in the list, increment the counter of
+		 * siblings. BUG() if counters does not match, list of siblings
+		 * is broken!
+		 */
+		rt6i_nsiblings = 0;
+		list_for_each_entry_safe(sibling, temp_sibling,
+					 &rt->rt6i_siblings, rt6i_siblings) {
+			sibling->rt6i_nsiblings++;
+			BUG_ON(sibling->rt6i_nsiblings != rt->rt6i_nsiblings);
+			rt6i_nsiblings++;
+		}
+		BUG_ON(rt6i_nsiblings != rt->rt6i_nsiblings);
+	}
+
 	/*
 	 *	insert node
 	 */
@@ -1193,6 +1239,17 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
 	if (fn->rr_ptr == rt)
 		fn->rr_ptr = NULL;
 
+	/* Remove this entry from other siblings */
+	if (rt->rt6i_nsiblings) {
+		struct rt6_info *sibling, *next_sibling;
+
+		list_for_each_entry_safe(sibling, next_sibling,
+					 &rt->rt6i_siblings, rt6i_siblings)
+			sibling->rt6i_nsiblings--;
+		rt->rt6i_nsiblings = 0;
+		list_del_init(&rt->rt6i_siblings);
+	}
+
 	/* Adjust walkers */
 	read_lock(&fib6_walker_lock);
 	FOR_WALKERS(w) {
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 90bbefb..29124b7 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -519,7 +519,8 @@ int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen)
 		}
 		read_unlock_bh(&ip6_sk_fl_lock);
 
-		if (freq.flr_share == IPV6_FL_S_NONE && capable(CAP_NET_ADMIN)) {
+		if (freq.flr_share == IPV6_FL_S_NONE &&
+		    ns_capable(net->user_ns, CAP_NET_ADMIN)) {
 			fl = fl_lookup(net, freq.flr_label);
 			if (fl) {
 				err = fl6_renew(fl, freq.flr_linger, freq.flr_expires);
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index d5cb3c4..867466c 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -109,21 +109,6 @@ static u32 HASH_ADDR(const struct in6_addr *addr)
 #define tunnels_r	tunnels[2]
 #define tunnels_l	tunnels[1]
 #define tunnels_wc	tunnels[0]
-/*
- * Locking : hash tables are protected by RCU and RTNL
- */
-
-#define for_each_ip_tunnel_rcu(start) \
-	for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
-
-/* often modified stats are per cpu, other are shared (netdev->stats) */
-struct pcpu_tstats {
-	u64	rx_packets;
-	u64	rx_bytes;
-	u64	tx_packets;
-	u64	tx_bytes;
-	struct u64_stats_sync	syncp;
-};
 
 static struct rtnl_link_stats64 *ip6gre_get_stats64(struct net_device *dev,
 		struct rtnl_link_stats64 *tot)
@@ -181,7 +166,7 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
 		       ARPHRD_ETHER : ARPHRD_IP6GRE;
 	int score, cand_score = 4;
 
-	for_each_ip_tunnel_rcu(ign->tunnels_r_l[h0 ^ h1]) {
+	for_each_ip_tunnel_rcu(t, ign->tunnels_r_l[h0 ^ h1]) {
 		if (!ipv6_addr_equal(local, &t->parms.laddr) ||
 		    !ipv6_addr_equal(remote, &t->parms.raddr) ||
 		    key != t->parms.i_key ||
@@ -206,7 +191,7 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
 		}
 	}
 
-	for_each_ip_tunnel_rcu(ign->tunnels_r[h0 ^ h1]) {
+	for_each_ip_tunnel_rcu(t, ign->tunnels_r[h0 ^ h1]) {
 		if (!ipv6_addr_equal(remote, &t->parms.raddr) ||
 		    key != t->parms.i_key ||
 		    !(t->dev->flags & IFF_UP))
@@ -230,7 +215,7 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
 		}
 	}
 
-	for_each_ip_tunnel_rcu(ign->tunnels_l[h1]) {
+	for_each_ip_tunnel_rcu(t, ign->tunnels_l[h1]) {
 		if ((!ipv6_addr_equal(local, &t->parms.laddr) &&
 			  (!ipv6_addr_equal(local, &t->parms.raddr) ||
 				 !ipv6_addr_is_multicast(local))) ||
@@ -256,7 +241,7 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
 		}
 	}
 
-	for_each_ip_tunnel_rcu(ign->tunnels_wc[h1]) {
+	for_each_ip_tunnel_rcu(t, ign->tunnels_wc[h1]) {
 		if (t->parms.i_key != key ||
 		    !(t->dev->flags & IFF_UP))
 			continue;
@@ -1069,7 +1054,7 @@ static void ip6gre_tnl_link_config(struct ip6_tnl *t, int set_mtu)
 					dev->mtu = IPV6_MIN_MTU;
 			}
 		}
-		dst_release(&rt->dst);
+		ip6_rt_put(rt);
 	}
 
 	t->hlen = addend;
@@ -1161,7 +1146,7 @@ static int ip6gre_tunnel_ioctl(struct net_device *dev,
 	case SIOCADDTUNNEL:
 	case SIOCCHGTUNNEL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto done;
 
 		err = -EFAULT;
@@ -1209,7 +1194,7 @@ static int ip6gre_tunnel_ioctl(struct net_device *dev,
 
 	case SIOCDELTUNNEL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto done;
 
 		if (dev == ign->fb_tunnel_dev) {
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
new file mode 100644
index 0000000..f26f0da
--- /dev/null
+++ b/net/ipv6/ip6_offload.c
@@ -0,0 +1,282 @@
+/*
+ *	IPV6 GSO/GRO offload support
+ *	Linux INET6 implementation
+ *
+ *	This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/socket.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/printk.h>
+
+#include <net/protocol.h>
+#include <net/ipv6.h>
+
+#include "ip6_offload.h"
+
+static int ipv6_gso_pull_exthdrs(struct sk_buff *skb, int proto)
+{
+	const struct net_offload *ops = NULL;
+
+	for (;;) {
+		struct ipv6_opt_hdr *opth;
+		int len;
+
+		if (proto != NEXTHDR_HOP) {
+			ops = rcu_dereference(inet6_offloads[proto]);
+
+			if (unlikely(!ops))
+				break;
+
+			if (!(ops->flags & INET6_PROTO_GSO_EXTHDR))
+				break;
+		}
+
+		if (unlikely(!pskb_may_pull(skb, 8)))
+			break;
+
+		opth = (void *)skb->data;
+		len = ipv6_optlen(opth);
+
+		if (unlikely(!pskb_may_pull(skb, len)))
+			break;
+
+		proto = opth->nexthdr;
+		__skb_pull(skb, len);
+	}
+
+	return proto;
+}
+
+static int ipv6_gso_send_check(struct sk_buff *skb)
+{
+	const struct ipv6hdr *ipv6h;
+	const struct net_offload *ops;
+	int err = -EINVAL;
+
+	if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
+		goto out;
+
+	ipv6h = ipv6_hdr(skb);
+	__skb_pull(skb, sizeof(*ipv6h));
+	err = -EPROTONOSUPPORT;
+
+	rcu_read_lock();
+	ops = rcu_dereference(inet6_offloads[
+		ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr)]);
+
+	if (likely(ops && ops->callbacks.gso_send_check)) {
+		skb_reset_transport_header(skb);
+		err = ops->callbacks.gso_send_check(skb);
+	}
+	rcu_read_unlock();
+
+out:
+	return err;
+}
+
+static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
+	netdev_features_t features)
+{
+	struct sk_buff *segs = ERR_PTR(-EINVAL);
+	struct ipv6hdr *ipv6h;
+	const struct net_offload *ops;
+	int proto;
+	struct frag_hdr *fptr;
+	unsigned int unfrag_ip6hlen;
+	u8 *prevhdr;
+	int offset = 0;
+
+	if (!(features & NETIF_F_V6_CSUM))
+		features &= ~NETIF_F_SG;
+
+	if (unlikely(skb_shinfo(skb)->gso_type &
+		     ~(SKB_GSO_UDP |
+		       SKB_GSO_DODGY |
+		       SKB_GSO_TCP_ECN |
+		       SKB_GSO_TCPV6 |
+		       0)))
+		goto out;
+
+	if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
+		goto out;
+
+	ipv6h = ipv6_hdr(skb);
+	__skb_pull(skb, sizeof(*ipv6h));
+	segs = ERR_PTR(-EPROTONOSUPPORT);
+
+	proto = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
+	rcu_read_lock();
+	ops = rcu_dereference(inet6_offloads[proto]);
+	if (likely(ops && ops->callbacks.gso_segment)) {
+		skb_reset_transport_header(skb);
+		segs = ops->callbacks.gso_segment(skb, features);
+	}
+	rcu_read_unlock();
+
+	if (IS_ERR(segs))
+		goto out;
+
+	for (skb = segs; skb; skb = skb->next) {
+		ipv6h = ipv6_hdr(skb);
+		ipv6h->payload_len = htons(skb->len - skb->mac_len -
+					   sizeof(*ipv6h));
+		if (proto == IPPROTO_UDP) {
+			unfrag_ip6hlen = ip6_find_1stfragopt(skb, &prevhdr);
+			fptr = (struct frag_hdr *)(skb_network_header(skb) +
+				unfrag_ip6hlen);
+			fptr->frag_off = htons(offset);
+			if (skb->next != NULL)
+				fptr->frag_off |= htons(IP6_MF);
+			offset += (ntohs(ipv6h->payload_len) -
+				   sizeof(struct frag_hdr));
+		}
+	}
+
+out:
+	return segs;
+}
+
+static struct sk_buff **ipv6_gro_receive(struct sk_buff **head,
+					 struct sk_buff *skb)
+{
+	const struct net_offload *ops;
+	struct sk_buff **pp = NULL;
+	struct sk_buff *p;
+	struct ipv6hdr *iph;
+	unsigned int nlen;
+	unsigned int hlen;
+	unsigned int off;
+	int flush = 1;
+	int proto;
+	__wsum csum;
+
+	off = skb_gro_offset(skb);
+	hlen = off + sizeof(*iph);
+	iph = skb_gro_header_fast(skb, off);
+	if (skb_gro_header_hard(skb, hlen)) {
+		iph = skb_gro_header_slow(skb, hlen, off);
+		if (unlikely(!iph))
+			goto out;
+	}
+
+	skb_gro_pull(skb, sizeof(*iph));
+	skb_set_transport_header(skb, skb_gro_offset(skb));
+
+	flush += ntohs(iph->payload_len) != skb_gro_len(skb);
+
+	rcu_read_lock();
+	proto = iph->nexthdr;
+	ops = rcu_dereference(inet6_offloads[proto]);
+	if (!ops || !ops->callbacks.gro_receive) {
+		__pskb_pull(skb, skb_gro_offset(skb));
+		proto = ipv6_gso_pull_exthdrs(skb, proto);
+		skb_gro_pull(skb, -skb_transport_offset(skb));
+		skb_reset_transport_header(skb);
+		__skb_push(skb, skb_gro_offset(skb));
+
+		ops = rcu_dereference(inet6_offloads[proto]);
+		if (!ops || !ops->callbacks.gro_receive)
+			goto out_unlock;
+
+		iph = ipv6_hdr(skb);
+	}
+
+	NAPI_GRO_CB(skb)->proto = proto;
+
+	flush--;
+	nlen = skb_network_header_len(skb);
+
+	for (p = *head; p; p = p->next) {
+		const struct ipv6hdr *iph2;
+		__be32 first_word; /* <Version:4><Traffic_Class:8><Flow_Label:20> */
+
+		if (!NAPI_GRO_CB(p)->same_flow)
+			continue;
+
+		iph2 = ipv6_hdr(p);
+		first_word = *(__be32 *)iph ^ *(__be32 *)iph2 ;
+
+		/* All fields must match except length and Traffic Class. */
+		if (nlen != skb_network_header_len(p) ||
+		    (first_word & htonl(0xF00FFFFF)) ||
+		    memcmp(&iph->nexthdr, &iph2->nexthdr,
+			   nlen - offsetof(struct ipv6hdr, nexthdr))) {
+			NAPI_GRO_CB(p)->same_flow = 0;
+			continue;
+		}
+		/* flush if Traffic Class fields are different */
+		NAPI_GRO_CB(p)->flush |= !!(first_word & htonl(0x0FF00000));
+		NAPI_GRO_CB(p)->flush |= flush;
+	}
+
+	NAPI_GRO_CB(skb)->flush |= flush;
+
+	csum = skb->csum;
+	skb_postpull_rcsum(skb, iph, skb_network_header_len(skb));
+
+	pp = ops->callbacks.gro_receive(head, skb);
+
+	skb->csum = csum;
+
+out_unlock:
+	rcu_read_unlock();
+
+out:
+	NAPI_GRO_CB(skb)->flush |= flush;
+
+	return pp;
+}
+
+static int ipv6_gro_complete(struct sk_buff *skb)
+{
+	const struct net_offload *ops;
+	struct ipv6hdr *iph = ipv6_hdr(skb);
+	int err = -ENOSYS;
+
+	iph->payload_len = htons(skb->len - skb_network_offset(skb) -
+				 sizeof(*iph));
+
+	rcu_read_lock();
+	ops = rcu_dereference(inet6_offloads[NAPI_GRO_CB(skb)->proto]);
+	if (WARN_ON(!ops || !ops->callbacks.gro_complete))
+		goto out_unlock;
+
+	err = ops->callbacks.gro_complete(skb);
+
+out_unlock:
+	rcu_read_unlock();
+
+	return err;
+}
+
+static struct packet_offload ipv6_packet_offload __read_mostly = {
+	.type = cpu_to_be16(ETH_P_IPV6),
+	.callbacks = {
+		.gso_send_check = ipv6_gso_send_check,
+		.gso_segment = ipv6_gso_segment,
+		.gro_receive = ipv6_gro_receive,
+		.gro_complete = ipv6_gro_complete,
+	},
+};
+
+static int __init ipv6_offload_init(void)
+{
+
+	if (tcpv6_offload_init() < 0)
+		pr_crit("%s: Cannot add TCP protocol offload\n", __func__);
+	if (udp_offload_init() < 0)
+		pr_crit("%s: Cannot add UDP protocol offload\n", __func__);
+	if (ipv6_exthdrs_offload_init() < 0)
+		pr_crit("%s: Cannot add EXTHDRS protocol offload\n", __func__);
+
+	dev_add_offload(&ipv6_packet_offload);
+	return 0;
+}
+
+fs_initcall(ipv6_offload_init);
diff --git a/net/ipv6/ip6_offload.h b/net/ipv6/ip6_offload.h
new file mode 100644
index 0000000..2e155c6
--- /dev/null
+++ b/net/ipv6/ip6_offload.h
@@ -0,0 +1,18 @@
+/*
+ *	IPV6 GSO/GRO offload support
+ *	Linux INET6 implementation
+ *
+ *	This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#ifndef __ip6_offload_h
+#define __ip6_offload_h
+
+int ipv6_exthdrs_offload_init(void);
+int udp_offload_init(void);
+int tcpv6_offload_init(void);
+
+#endif
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index aece3e7..5552d13 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -538,78 +538,12 @@ static void ip6_copy_metadata(struct sk_buff *to, struct sk_buff *from)
 	to->tc_index = from->tc_index;
 #endif
 	nf_copy(to, from);
-#if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \
-    defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE)
+#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
 	to->nf_trace = from->nf_trace;
 #endif
 	skb_copy_secmark(to, from);
 }
 
-int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
-{
-	u16 offset = sizeof(struct ipv6hdr);
-	struct ipv6_opt_hdr *exthdr =
-				(struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
-	unsigned int packet_len = skb->tail - skb->network_header;
-	int found_rhdr = 0;
-	*nexthdr = &ipv6_hdr(skb)->nexthdr;
-
-	while (offset + 1 <= packet_len) {
-
-		switch (**nexthdr) {
-
-		case NEXTHDR_HOP:
-			break;
-		case NEXTHDR_ROUTING:
-			found_rhdr = 1;
-			break;
-		case NEXTHDR_DEST:
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
-			if (ipv6_find_tlv(skb, offset, IPV6_TLV_HAO) >= 0)
-				break;
-#endif
-			if (found_rhdr)
-				return offset;
-			break;
-		default :
-			return offset;
-		}
-
-		offset += ipv6_optlen(exthdr);
-		*nexthdr = &exthdr->nexthdr;
-		exthdr = (struct ipv6_opt_hdr *)(skb_network_header(skb) +
-						 offset);
-	}
-
-	return offset;
-}
-
-void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt)
-{
-	static atomic_t ipv6_fragmentation_id;
-	int old, new;
-
-	if (rt && !(rt->dst.flags & DST_NOPEER)) {
-		struct inet_peer *peer;
-		struct net *net;
-
-		net = dev_net(rt->dst.dev);
-		peer = inet_getpeer_v6(net->ipv6.peers, &rt->rt6i_dst.addr, 1);
-		if (peer) {
-			fhdr->identification = htonl(inet_getid(peer, 0));
-			inet_putpeer(peer);
-			return;
-		}
-	}
-	do {
-		old = atomic_read(&ipv6_fragmentation_id);
-		new = old + 1;
-		if (!new)
-			new = 1;
-	} while (atomic_cmpxchg(&ipv6_fragmentation_id, old, new) != old);
-	fhdr->identification = htonl(new);
-}
-
 int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 {
 	struct sk_buff *frag;
@@ -756,7 +690,7 @@ int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 		if (err == 0) {
 			IP6_INC_STATS(net, ip6_dst_idev(&rt->dst),
 				      IPSTATS_MIB_FRAGOKS);
-			dst_release(&rt->dst);
+			ip6_rt_put(rt);
 			return 0;
 		}
 
@@ -768,7 +702,7 @@ int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 
 		IP6_INC_STATS(net, ip6_dst_idev(&rt->dst),
 			      IPSTATS_MIB_FRAGFAILS);
-		dst_release(&rt->dst);
+		ip6_rt_put(rt);
 		return err;
 
 slow_path_clean:
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index cb7e2de..a14f28b 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -74,6 +74,10 @@ MODULE_ALIAS_NETDEV("ip6tnl0");
 #define HASH_SIZE_SHIFT  5
 #define HASH_SIZE (1 << HASH_SIZE_SHIFT)
 
+static bool log_ecn_error = true;
+module_param(log_ecn_error, bool, 0644);
+MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
+
 static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
 {
 	u32 hash = ipv6_addr_hash(addr1) ^ ipv6_addr_hash(addr2);
@@ -83,6 +87,7 @@ static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
 
 static int ip6_tnl_dev_init(struct net_device *dev);
 static void ip6_tnl_dev_setup(struct net_device *dev);
+static struct rtnl_link_ops ip6_link_ops __read_mostly;
 
 static int ip6_tnl_net_id __read_mostly;
 struct ip6_tnl_net {
@@ -94,14 +99,6 @@ struct ip6_tnl_net {
 	struct ip6_tnl __rcu **tnls[2];
 };
 
-/* often modified stats are per cpu, other are shared (netdev->stats) */
-struct pcpu_tstats {
-	unsigned long	rx_packets;
-	unsigned long	rx_bytes;
-	unsigned long	tx_packets;
-	unsigned long	tx_bytes;
-} __attribute__((aligned(4*sizeof(unsigned long))));
-
 static struct net_device_stats *ip6_get_stats(struct net_device *dev)
 {
 	struct pcpu_tstats sum = { 0 };
@@ -258,6 +255,33 @@ static void ip6_dev_free(struct net_device *dev)
 	free_netdev(dev);
 }
 
+static int ip6_tnl_create2(struct net_device *dev)
+{
+	struct ip6_tnl *t = netdev_priv(dev);
+	struct net *net = dev_net(dev);
+	struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
+	int err;
+
+	t = netdev_priv(dev);
+	err = ip6_tnl_dev_init(dev);
+	if (err < 0)
+		goto out;
+
+	err = register_netdevice(dev);
+	if (err < 0)
+		goto out;
+
+	strcpy(t->parms.name, dev->name);
+	dev->rtnl_link_ops = &ip6_link_ops;
+
+	dev_hold(dev);
+	ip6_tnl_link(ip6n, t);
+	return 0;
+
+out:
+	return err;
+}
+
 /**
  * ip6_tnl_create - create a new tunnel
  *   @p: tunnel parameters
@@ -276,7 +300,6 @@ static struct ip6_tnl *ip6_tnl_create(struct net *net, struct __ip6_tnl_parm *p)
 	struct ip6_tnl *t;
 	char name[IFNAMSIZ];
 	int err;
-	struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
 
 	if (p->name[0])
 		strlcpy(name, p->name, IFNAMSIZ);
@@ -291,17 +314,10 @@ static struct ip6_tnl *ip6_tnl_create(struct net *net, struct __ip6_tnl_parm *p)
 
 	t = netdev_priv(dev);
 	t->parms = *p;
-	err = ip6_tnl_dev_init(dev);
+	err = ip6_tnl_create2(dev);
 	if (err < 0)
 		goto failed_free;
 
-	if ((err = register_netdevice(dev)) < 0)
-		goto failed_free;
-
-	strcpy(t->parms.name, dev->name);
-
-	dev_hold(dev);
-	ip6_tnl_link(ip6n, t);
 	return t;
 
 failed_free:
@@ -663,8 +679,7 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 
 		icmpv6_send(skb2, rel_type, rel_code, rel_info);
 
-		if (rt)
-			dst_release(&rt->dst);
+		ip6_rt_put(rt);
 
 		kfree_skb(skb2);
 	}
@@ -672,28 +687,26 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	return 0;
 }
 
-static void ip4ip6_dscp_ecn_decapsulate(const struct ip6_tnl *t,
-					const struct ipv6hdr *ipv6h,
-					struct sk_buff *skb)
+static int ip4ip6_dscp_ecn_decapsulate(const struct ip6_tnl *t,
+				       const struct ipv6hdr *ipv6h,
+				       struct sk_buff *skb)
 {
 	__u8 dsfield = ipv6_get_dsfield(ipv6h) & ~INET_ECN_MASK;
 
 	if (t->parms.flags & IP6_TNL_F_RCV_DSCP_COPY)
 		ipv4_change_dsfield(ip_hdr(skb), INET_ECN_MASK, dsfield);
 
-	if (INET_ECN_is_ce(dsfield))
-		IP_ECN_set_ce(ip_hdr(skb));
+	return IP6_ECN_decapsulate(ipv6h, skb);
 }
 
-static void ip6ip6_dscp_ecn_decapsulate(const struct ip6_tnl *t,
-					const struct ipv6hdr *ipv6h,
-					struct sk_buff *skb)
+static int ip6ip6_dscp_ecn_decapsulate(const struct ip6_tnl *t,
+				       const struct ipv6hdr *ipv6h,
+				       struct sk_buff *skb)
 {
 	if (t->parms.flags & IP6_TNL_F_RCV_DSCP_COPY)
 		ipv6_copy_dscp(ipv6_get_dsfield(ipv6h), ipv6_hdr(skb));
 
-	if (INET_ECN_is_ce(ipv6_get_dsfield(ipv6h)))
-		IP6_ECN_set_ce(ipv6_hdr(skb));
+	return IP6_ECN_decapsulate(ipv6h, skb);
 }
 
 __u32 ip6_tnl_get_cap(struct ip6_tnl *t,
@@ -757,12 +770,13 @@ EXPORT_SYMBOL_GPL(ip6_tnl_rcv_ctl);
 
 static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
 		       __u8 ipproto,
-		       void (*dscp_ecn_decapsulate)(const struct ip6_tnl *t,
-						    const struct ipv6hdr *ipv6h,
-						    struct sk_buff *skb))
+		       int (*dscp_ecn_decapsulate)(const struct ip6_tnl *t,
+						   const struct ipv6hdr *ipv6h,
+						   struct sk_buff *skb))
 {
 	struct ip6_tnl *t;
 	const struct ipv6hdr *ipv6h = ipv6_hdr(skb);
+	int err;
 
 	rcu_read_lock();
 
@@ -792,14 +806,26 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
 		skb->pkt_type = PACKET_HOST;
 		memset(skb->cb, 0, sizeof(struct inet6_skb_parm));
 
+		__skb_tunnel_rx(skb, t->dev);
+
+		err = dscp_ecn_decapsulate(t, ipv6h, skb);
+		if (unlikely(err)) {
+			if (log_ecn_error)
+				net_info_ratelimited("non-ECT from %pI6 with dsfield=%#x\n",
+						     &ipv6h->saddr,
+						     ipv6_get_dsfield(ipv6h));
+			if (err > 1) {
+				++t->dev->stats.rx_frame_errors;
+				++t->dev->stats.rx_errors;
+				rcu_read_unlock();
+				goto discard;
+			}
+		}
+
 		tstats = this_cpu_ptr(t->dev->tstats);
 		tstats->rx_packets++;
 		tstats->rx_bytes += skb->len;
 
-		__skb_tunnel_rx(skb, t->dev);
-
-		dscp_ecn_decapsulate(t, ipv6h, skb);
-
 		netif_rx(skb);
 
 		rcu_read_unlock();
@@ -1208,7 +1234,7 @@ static void ip6_tnl_link_config(struct ip6_tnl *t)
 			if (dev->mtu < IPV6_MIN_MTU)
 				dev->mtu = IPV6_MIN_MTU;
 		}
-		dst_release(&rt->dst);
+		ip6_rt_put(rt);
 	}
 }
 
@@ -1237,6 +1263,20 @@ ip6_tnl_change(struct ip6_tnl *t, const struct __ip6_tnl_parm *p)
 	return 0;
 }
 
+static int ip6_tnl_update(struct ip6_tnl *t, struct __ip6_tnl_parm *p)
+{
+	struct net *net = dev_net(t->dev);
+	struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
+	int err;
+
+	ip6_tnl_unlink(ip6n, t);
+	synchronize_net();
+	err = ip6_tnl_change(t, p);
+	ip6_tnl_link(ip6n, t);
+	netdev_state_change(t->dev);
+	return err;
+}
+
 static void
 ip6_tnl_parm_from_user(struct __ip6_tnl_parm *p, const struct ip6_tnl_parm *u)
 {
@@ -1325,7 +1365,7 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	case SIOCADDTUNNEL:
 	case SIOCCHGTUNNEL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			break;
 		err = -EFAULT;
 		if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof (p)))
@@ -1345,11 +1385,7 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 			} else
 				t = netdev_priv(dev);
 
-			ip6_tnl_unlink(ip6n, t);
-			synchronize_net();
-			err = ip6_tnl_change(t, &p1);
-			ip6_tnl_link(ip6n, t);
-			netdev_state_change(dev);
+			err = ip6_tnl_update(t, &p1);
 		}
 		if (t) {
 			err = 0;
@@ -1362,7 +1398,7 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		break;
 	case SIOCDELTUNNEL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			break;
 
 		if (dev == ip6n->fb_tnl_dev) {
@@ -1505,6 +1541,164 @@ static int __net_init ip6_fb_tnl_dev_init(struct net_device *dev)
 	return 0;
 }
 
+static int ip6_tnl_validate(struct nlattr *tb[], struct nlattr *data[])
+{
+	u8 proto;
+
+	if (!data)
+		return 0;
+
+	proto = nla_get_u8(data[IFLA_IPTUN_PROTO]);
+	if (proto != IPPROTO_IPV6 &&
+	    proto != IPPROTO_IPIP &&
+	    proto != 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+static void ip6_tnl_netlink_parms(struct nlattr *data[],
+				  struct __ip6_tnl_parm *parms)
+{
+	memset(parms, 0, sizeof(*parms));
+
+	if (!data)
+		return;
+
+	if (data[IFLA_IPTUN_LINK])
+		parms->link = nla_get_u32(data[IFLA_IPTUN_LINK]);
+
+	if (data[IFLA_IPTUN_LOCAL])
+		nla_memcpy(&parms->laddr, data[IFLA_IPTUN_LOCAL],
+			   sizeof(struct in6_addr));
+
+	if (data[IFLA_IPTUN_REMOTE])
+		nla_memcpy(&parms->raddr, data[IFLA_IPTUN_REMOTE],
+			   sizeof(struct in6_addr));
+
+	if (data[IFLA_IPTUN_TTL])
+		parms->hop_limit = nla_get_u8(data[IFLA_IPTUN_TTL]);
+
+	if (data[IFLA_IPTUN_ENCAP_LIMIT])
+		parms->encap_limit = nla_get_u8(data[IFLA_IPTUN_ENCAP_LIMIT]);
+
+	if (data[IFLA_IPTUN_FLOWINFO])
+		parms->flowinfo = nla_get_be32(data[IFLA_IPTUN_FLOWINFO]);
+
+	if (data[IFLA_IPTUN_FLAGS])
+		parms->flags = nla_get_u32(data[IFLA_IPTUN_FLAGS]);
+
+	if (data[IFLA_IPTUN_PROTO])
+		parms->proto = nla_get_u8(data[IFLA_IPTUN_PROTO]);
+}
+
+static int ip6_tnl_newlink(struct net *src_net, struct net_device *dev,
+			   struct nlattr *tb[], struct nlattr *data[])
+{
+	struct net *net = dev_net(dev);
+	struct ip6_tnl *nt;
+
+	nt = netdev_priv(dev);
+	ip6_tnl_netlink_parms(data, &nt->parms);
+
+	if (ip6_tnl_locate(net, &nt->parms, 0))
+		return -EEXIST;
+
+	return ip6_tnl_create2(dev);
+}
+
+static int ip6_tnl_changelink(struct net_device *dev, struct nlattr *tb[],
+			      struct nlattr *data[])
+{
+	struct ip6_tnl *t;
+	struct __ip6_tnl_parm p;
+	struct net *net = dev_net(dev);
+	struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
+
+	if (dev == ip6n->fb_tnl_dev)
+		return -EINVAL;
+
+	ip6_tnl_netlink_parms(data, &p);
+
+	t = ip6_tnl_locate(net, &p, 0);
+
+	if (t) {
+		if (t->dev != dev)
+			return -EEXIST;
+	} else
+		t = netdev_priv(dev);
+
+	return ip6_tnl_update(t, &p);
+}
+
+static size_t ip6_tnl_get_size(const struct net_device *dev)
+{
+	return
+		/* IFLA_IPTUN_LINK */
+		nla_total_size(4) +
+		/* IFLA_IPTUN_LOCAL */
+		nla_total_size(sizeof(struct in6_addr)) +
+		/* IFLA_IPTUN_REMOTE */
+		nla_total_size(sizeof(struct in6_addr)) +
+		/* IFLA_IPTUN_TTL */
+		nla_total_size(1) +
+		/* IFLA_IPTUN_ENCAP_LIMIT */
+		nla_total_size(1) +
+		/* IFLA_IPTUN_FLOWINFO */
+		nla_total_size(4) +
+		/* IFLA_IPTUN_FLAGS */
+		nla_total_size(4) +
+		/* IFLA_IPTUN_PROTO */
+		nla_total_size(1) +
+		0;
+}
+
+static int ip6_tnl_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+	struct ip6_tnl *tunnel = netdev_priv(dev);
+	struct __ip6_tnl_parm *parm = &tunnel->parms;
+
+	if (nla_put_u32(skb, IFLA_IPTUN_LINK, parm->link) ||
+	    nla_put(skb, IFLA_IPTUN_LOCAL, sizeof(struct in6_addr),
+		    &parm->raddr) ||
+	    nla_put(skb, IFLA_IPTUN_REMOTE, sizeof(struct in6_addr),
+		    &parm->laddr) ||
+	    nla_put_u8(skb, IFLA_IPTUN_TTL, parm->hop_limit) ||
+	    nla_put_u8(skb, IFLA_IPTUN_ENCAP_LIMIT, parm->encap_limit) ||
+	    nla_put_be32(skb, IFLA_IPTUN_FLOWINFO, parm->flowinfo) ||
+	    nla_put_u32(skb, IFLA_IPTUN_FLAGS, parm->flags) ||
+	    nla_put_u8(skb, IFLA_IPTUN_PROTO, parm->proto))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
+static const struct nla_policy ip6_tnl_policy[IFLA_IPTUN_MAX + 1] = {
+	[IFLA_IPTUN_LINK]		= { .type = NLA_U32 },
+	[IFLA_IPTUN_LOCAL]		= { .len = sizeof(struct in6_addr) },
+	[IFLA_IPTUN_REMOTE]		= { .len = sizeof(struct in6_addr) },
+	[IFLA_IPTUN_TTL]		= { .type = NLA_U8 },
+	[IFLA_IPTUN_ENCAP_LIMIT]	= { .type = NLA_U8 },
+	[IFLA_IPTUN_FLOWINFO]		= { .type = NLA_U32 },
+	[IFLA_IPTUN_FLAGS]		= { .type = NLA_U32 },
+	[IFLA_IPTUN_PROTO]		= { .type = NLA_U8 },
+};
+
+static struct rtnl_link_ops ip6_link_ops __read_mostly = {
+	.kind		= "ip6tnl",
+	.maxtype	= IFLA_IPTUN_MAX,
+	.policy		= ip6_tnl_policy,
+	.priv_size	= sizeof(struct ip6_tnl),
+	.setup		= ip6_tnl_dev_setup,
+	.validate	= ip6_tnl_validate,
+	.newlink	= ip6_tnl_newlink,
+	.changelink	= ip6_tnl_changelink,
+	.get_size	= ip6_tnl_get_size,
+	.fill_info	= ip6_tnl_fill_info,
+};
+
 static struct xfrm6_tunnel ip4ip6_handler __read_mostly = {
 	.handler	= ip4ip6_rcv,
 	.err_handler	= ip4ip6_err,
@@ -1613,9 +1807,14 @@ static int __init ip6_tunnel_init(void)
 		pr_err("%s: can't register ip6ip6\n", __func__);
 		goto out_ip6ip6;
 	}
+	err = rtnl_link_register(&ip6_link_ops);
+	if (err < 0)
+		goto rtnl_link_failed;
 
 	return 0;
 
+rtnl_link_failed:
+	xfrm6_tunnel_deregister(&ip6ip6_handler, AF_INET6);
 out_ip6ip6:
 	xfrm6_tunnel_deregister(&ip4ip6_handler, AF_INET);
 out_ip4ip6:
@@ -1630,6 +1829,7 @@ out_pernet:
 
 static void __exit ip6_tunnel_cleanup(void)
 {
+	rtnl_link_unregister(&ip6_link_ops);
 	if (xfrm6_tunnel_deregister(&ip4ip6_handler, AF_INET))
 		pr_info("%s: can't deregister ip4ip6\n", __func__);
 
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index f7c7c63..26dcdec 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -52,6 +52,7 @@
 #include <linux/netfilter_ipv6.h>
 #include <linux/export.h>
 #include <net/ip6_checksum.h>
+#include <linux/netconf.h>
 
 struct mr6_table {
 	struct list_head	list;
@@ -66,8 +67,8 @@ struct mr6_table {
 	struct mif_device	vif6_table[MAXMIFS];
 	int			maxvif;
 	atomic_t		cache_resolve_queue_len;
-	int			mroute_do_assert;
-	int			mroute_do_pim;
+	bool			mroute_do_assert;
+	bool			mroute_do_pim;
 #ifdef CONFIG_IPV6_PIMSM_V2
 	int			mroute_reg_vif_num;
 #endif
@@ -115,6 +116,8 @@ static int ip6mr_cache_report(struct mr6_table *mrt, struct sk_buff *pkt,
 			      mifi_t mifi, int assert);
 static int __ip6mr_fill_mroute(struct mr6_table *mrt, struct sk_buff *skb,
 			       struct mfc6_cache *c, struct rtmsg *rtm);
+static void mr6_netlink_event(struct mr6_table *mrt, struct mfc6_cache *mfc,
+			      int cmd);
 static int ip6mr_rtm_dumproute(struct sk_buff *skb,
 			       struct netlink_callback *cb);
 static void mroute_clean_tables(struct mr6_table *mrt);
@@ -805,8 +808,12 @@ static int mif6_delete(struct mr6_table *mrt, int vifi, struct list_head *head)
 	dev_set_allmulti(dev, -1);
 
 	in6_dev = __in6_dev_get(dev);
-	if (in6_dev)
+	if (in6_dev) {
 		in6_dev->cnf.mc_forwarding--;
+		inet6_netconf_notify_devconf(dev_net(dev),
+					     NETCONFA_MC_FORWARDING,
+					     dev->ifindex, &in6_dev->cnf);
+	}
 
 	if (v->flags & MIFF_REGISTER)
 		unregister_netdevice_queue(dev, head);
@@ -865,6 +872,7 @@ static void ipmr_do_expire_process(struct mr6_table *mrt)
 		}
 
 		list_del(&c->list);
+		mr6_netlink_event(mrt, c, RTM_DELROUTE);
 		ip6mr_destroy_unres(mrt, c);
 	}
 
@@ -958,8 +966,12 @@ static int mif6_add(struct net *net, struct mr6_table *mrt,
 	}
 
 	in6_dev = __in6_dev_get(dev);
-	if (in6_dev)
+	if (in6_dev) {
 		in6_dev->cnf.mc_forwarding++;
+		inet6_netconf_notify_devconf(dev_net(dev),
+					     NETCONFA_MC_FORWARDING,
+					     dev->ifindex, &in6_dev->cnf);
+	}
 
 	/*
 	 *	Fill in the VIF structures
@@ -1211,6 +1223,7 @@ ip6mr_cache_unresolved(struct mr6_table *mrt, mifi_t mifi, struct sk_buff *skb)
 
 		atomic_inc(&mrt->cache_resolve_queue_len);
 		list_add(&c->list, &mrt->mfc6_unres_queue);
+		mr6_netlink_event(mrt, c, RTM_NEWROUTE);
 
 		ipmr_do_expire_process(mrt);
 	}
@@ -1248,6 +1261,7 @@ static int ip6mr_mfc_delete(struct mr6_table *mrt, struct mf6cctl *mfc)
 			list_del(&c->list);
 			write_unlock_bh(&mrt_lock);
 
+			mr6_netlink_event(mrt, c, RTM_DELROUTE);
 			ip6mr_cache_free(c);
 			return 0;
 		}
@@ -1412,6 +1426,7 @@ static int ip6mr_mfc_add(struct net *net, struct mr6_table *mrt,
 		if (!mrtsock)
 			c->mfc_flags |= MFC_STATIC;
 		write_unlock_bh(&mrt_lock);
+		mr6_netlink_event(mrt, c, RTM_NEWROUTE);
 		return 0;
 	}
 
@@ -1456,6 +1471,7 @@ static int ip6mr_mfc_add(struct net *net, struct mr6_table *mrt,
 		ip6mr_cache_resolve(net, mrt, uc, c);
 		ip6mr_cache_free(uc);
 	}
+	mr6_netlink_event(mrt, c, RTM_NEWROUTE);
 	return 0;
 }
 
@@ -1489,6 +1505,7 @@ static void mroute_clean_tables(struct mr6_table *mrt)
 			list_del(&c->list);
 			write_unlock_bh(&mrt_lock);
 
+			mr6_netlink_event(mrt, c, RTM_DELROUTE);
 			ip6mr_cache_free(c);
 		}
 	}
@@ -1497,6 +1514,7 @@ static void mroute_clean_tables(struct mr6_table *mrt)
 		spin_lock_bh(&mfc_unres_lock);
 		list_for_each_entry_safe(c, next, &mrt->mfc6_unres_queue, list) {
 			list_del(&c->list);
+			mr6_netlink_event(mrt, c, RTM_DELROUTE);
 			ip6mr_destroy_unres(mrt, c);
 		}
 		spin_unlock_bh(&mfc_unres_lock);
@@ -1513,6 +1531,9 @@ static int ip6mr_sk_init(struct mr6_table *mrt, struct sock *sk)
 	if (likely(mrt->mroute6_sk == NULL)) {
 		mrt->mroute6_sk = sk;
 		net->ipv6.devconf_all->mc_forwarding++;
+		inet6_netconf_notify_devconf(net, NETCONFA_MC_FORWARDING,
+					     NETCONFA_IFINDEX_ALL,
+					     net->ipv6.devconf_all);
 	}
 	else
 		err = -EADDRINUSE;
@@ -1535,6 +1556,10 @@ int ip6mr_sk_done(struct sock *sk)
 			write_lock_bh(&mrt_lock);
 			mrt->mroute6_sk = NULL;
 			net->ipv6.devconf_all->mc_forwarding--;
+			inet6_netconf_notify_devconf(net,
+						     NETCONFA_MC_FORWARDING,
+						     NETCONFA_IFINDEX_ALL,
+						     net->ipv6.devconf_all);
 			write_unlock_bh(&mrt_lock);
 
 			mroute_clean_tables(mrt);
@@ -1583,7 +1608,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns
 		return -ENOENT;
 
 	if (optname != MRT6_INIT) {
-		if (sk != mrt->mroute6_sk && !capable(CAP_NET_ADMIN))
+		if (sk != mrt->mroute6_sk && !ns_capable(net->user_ns, CAP_NET_ADMIN))
 			return -EACCES;
 	}
 
@@ -1646,9 +1671,12 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns
 	case MRT6_ASSERT:
 	{
 		int v;
+
+		if (optlen != sizeof(v))
+			return -EINVAL;
 		if (get_user(v, (int __user *)optval))
 			return -EFAULT;
-		mrt->mroute_do_assert = !!v;
+		mrt->mroute_do_assert = v;
 		return 0;
 	}
 
@@ -1656,6 +1684,9 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns
 	case MRT6_PIM:
 	{
 		int v;
+
+		if (optlen != sizeof(v))
+			return -EINVAL;
 		if (get_user(v, (int __user *)optval))
 			return -EFAULT;
 		v = !!v;
@@ -2097,8 +2128,8 @@ static int __ip6mr_fill_mroute(struct mr6_table *mrt, struct sk_buff *skb,
 {
 	int ct;
 	struct rtnexthop *nhp;
-	u8 *b = skb_tail_pointer(skb);
-	struct rtattr *mp_head;
+	struct nlattr *mp_attr;
+	struct rta_mfc_stats mfcs;
 
 	/* If cache is unresolved, don't try to parse IIF and OIF */
 	if (c->mf6c_parent >= MAXMIFS)
@@ -2107,28 +2138,35 @@ static int __ip6mr_fill_mroute(struct mr6_table *mrt, struct sk_buff *skb,
 	if (MIF_EXISTS(mrt, c->mf6c_parent) &&
 	    nla_put_u32(skb, RTA_IIF, mrt->vif6_table[c->mf6c_parent].dev->ifindex) < 0)
 		return -EMSGSIZE;
-
-	mp_head = (struct rtattr *)skb_put(skb, RTA_LENGTH(0));
+	mp_attr = nla_nest_start(skb, RTA_MULTIPATH);
+	if (mp_attr == NULL)
+		return -EMSGSIZE;
 
 	for (ct = c->mfc_un.res.minvif; ct < c->mfc_un.res.maxvif; ct++) {
 		if (MIF_EXISTS(mrt, ct) && c->mfc_un.res.ttls[ct] < 255) {
-			if (skb_tailroom(skb) < RTA_ALIGN(RTA_ALIGN(sizeof(*nhp)) + 4))
-				goto rtattr_failure;
-			nhp = (struct rtnexthop *)skb_put(skb, RTA_ALIGN(sizeof(*nhp)));
+			nhp = nla_reserve_nohdr(skb, sizeof(*nhp));
+			if (nhp == NULL) {
+				nla_nest_cancel(skb, mp_attr);
+				return -EMSGSIZE;
+			}
+
 			nhp->rtnh_flags = 0;
 			nhp->rtnh_hops = c->mfc_un.res.ttls[ct];
 			nhp->rtnh_ifindex = mrt->vif6_table[ct].dev->ifindex;
 			nhp->rtnh_len = sizeof(*nhp);
 		}
 	}
-	mp_head->rta_type = RTA_MULTIPATH;
-	mp_head->rta_len = skb_tail_pointer(skb) - (u8 *)mp_head;
+
+	nla_nest_end(skb, mp_attr);
+
+	mfcs.mfcs_packets = c->mfc_un.res.pkt;
+	mfcs.mfcs_bytes = c->mfc_un.res.bytes;
+	mfcs.mfcs_wrong_if = c->mfc_un.res.wrong_if;
+	if (nla_put(skb, RTA_MFC_STATS, sizeof(mfcs), &mfcs) < 0)
+		return -EMSGSIZE;
+
 	rtm->rtm_type = RTN_MULTICAST;
 	return 1;
-
-rtattr_failure:
-	nlmsg_trim(skb, b);
-	return -EMSGSIZE;
 }
 
 int ip6mr_get_route(struct net *net,
@@ -2202,31 +2240,38 @@ int ip6mr_get_route(struct net *net,
 }
 
 static int ip6mr_fill_mroute(struct mr6_table *mrt, struct sk_buff *skb,
-			     u32 portid, u32 seq, struct mfc6_cache *c)
+			     u32 portid, u32 seq, struct mfc6_cache *c, int cmd)
 {
 	struct nlmsghdr *nlh;
 	struct rtmsg *rtm;
+	int err;
 
-	nlh = nlmsg_put(skb, portid, seq, RTM_NEWROUTE, sizeof(*rtm), NLM_F_MULTI);
+	nlh = nlmsg_put(skb, portid, seq, cmd, sizeof(*rtm), NLM_F_MULTI);
 	if (nlh == NULL)
 		return -EMSGSIZE;
 
 	rtm = nlmsg_data(nlh);
-	rtm->rtm_family   = RTNL_FAMILY_IPMR;
+	rtm->rtm_family   = RTNL_FAMILY_IP6MR;
 	rtm->rtm_dst_len  = 128;
 	rtm->rtm_src_len  = 128;
 	rtm->rtm_tos      = 0;
 	rtm->rtm_table    = mrt->id;
 	if (nla_put_u32(skb, RTA_TABLE, mrt->id))
 		goto nla_put_failure;
+	rtm->rtm_type = RTN_MULTICAST;
 	rtm->rtm_scope    = RT_SCOPE_UNIVERSE;
-	rtm->rtm_protocol = RTPROT_UNSPEC;
+	if (c->mfc_flags & MFC_STATIC)
+		rtm->rtm_protocol = RTPROT_STATIC;
+	else
+		rtm->rtm_protocol = RTPROT_MROUTED;
 	rtm->rtm_flags    = 0;
 
 	if (nla_put(skb, RTA_SRC, 16, &c->mf6c_origin) ||
 	    nla_put(skb, RTA_DST, 16, &c->mf6c_mcastgrp))
 		goto nla_put_failure;
-	if (__ip6mr_fill_mroute(mrt, skb, c, rtm) < 0)
+	err = __ip6mr_fill_mroute(mrt, skb, c, rtm);
+	/* do not break the dump if cache is unresolved */
+	if (err < 0 && err != -ENOENT)
 		goto nla_put_failure;
 
 	return nlmsg_end(skb, nlh);
@@ -2236,6 +2281,52 @@ nla_put_failure:
 	return -EMSGSIZE;
 }
 
+static int mr6_msgsize(bool unresolved, int maxvif)
+{
+	size_t len =
+		NLMSG_ALIGN(sizeof(struct rtmsg))
+		+ nla_total_size(4)	/* RTA_TABLE */
+		+ nla_total_size(sizeof(struct in6_addr))	/* RTA_SRC */
+		+ nla_total_size(sizeof(struct in6_addr))	/* RTA_DST */
+		;
+
+	if (!unresolved)
+		len = len
+		      + nla_total_size(4)	/* RTA_IIF */
+		      + nla_total_size(0)	/* RTA_MULTIPATH */
+		      + maxvif * NLA_ALIGN(sizeof(struct rtnexthop))
+						/* RTA_MFC_STATS */
+		      + nla_total_size(sizeof(struct rta_mfc_stats))
+		;
+
+	return len;
+}
+
+static void mr6_netlink_event(struct mr6_table *mrt, struct mfc6_cache *mfc,
+			      int cmd)
+{
+	struct net *net = read_pnet(&mrt->net);
+	struct sk_buff *skb;
+	int err = -ENOBUFS;
+
+	skb = nlmsg_new(mr6_msgsize(mfc->mf6c_parent >= MAXMIFS, mrt->maxvif),
+			GFP_ATOMIC);
+	if (skb == NULL)
+		goto errout;
+
+	err = ip6mr_fill_mroute(mrt, skb, 0, 0, mfc, cmd);
+	if (err < 0)
+		goto errout;
+
+	rtnl_notify(skb, net, 0, RTNLGRP_IPV6_MROUTE, NULL, GFP_ATOMIC);
+	return;
+
+errout:
+	kfree_skb(skb);
+	if (err < 0)
+		rtnl_set_sk_err(net, RTNLGRP_IPV6_MROUTE, err);
+}
+
 static int ip6mr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	struct net *net = sock_net(skb->sk);
@@ -2262,13 +2353,29 @@ static int ip6mr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
 				if (ip6mr_fill_mroute(mrt, skb,
 						      NETLINK_CB(cb->skb).portid,
 						      cb->nlh->nlmsg_seq,
-						      mfc) < 0)
+						      mfc, RTM_NEWROUTE) < 0)
 					goto done;
 next_entry:
 				e++;
 			}
 			e = s_e = 0;
 		}
+		spin_lock_bh(&mfc_unres_lock);
+		list_for_each_entry(mfc, &mrt->mfc6_unres_queue, list) {
+			if (e < s_e)
+				goto next_entry2;
+			if (ip6mr_fill_mroute(mrt, skb,
+					      NETLINK_CB(cb->skb).portid,
+					      cb->nlh->nlmsg_seq,
+					      mfc, RTM_NEWROUTE) < 0) {
+				spin_unlock_bh(&mfc_unres_lock);
+				goto done;
+			}
+next_entry2:
+			e++;
+		}
+		spin_unlock_bh(&mfc_unres_lock);
+		e = s_e = 0;
 		s_h = 0;
 next_table:
 		t++;
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index e02faed..ee94d31 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -343,7 +343,8 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 		break;
 
 	case IPV6_TRANSPARENT:
-		if (valbool && !capable(CAP_NET_ADMIN) && !capable(CAP_NET_RAW)) {
+		if (valbool && !ns_capable(net->user_ns, CAP_NET_ADMIN) &&
+		    !ns_capable(net->user_ns, CAP_NET_RAW)) {
 			retv = -EPERM;
 			break;
 		}
@@ -381,7 +382,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 
 		/* hop-by-hop / destination options are privileged option */
 		retv = -EPERM;
-		if (optname != IPV6_RTHDR && !capable(CAP_NET_RAW))
+		if (optname != IPV6_RTHDR && !ns_capable(net->user_ns, CAP_NET_RAW))
 			break;
 
 		opt = ipv6_renew_options(sk, np->opt, optname,
@@ -397,7 +398,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 		if (optname == IPV6_RTHDR && opt && opt->srcrt) {
 			struct ipv6_rt_hdr *rthdr = opt->srcrt;
 			switch (rthdr->type) {
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 			case IPV6_SRCRT_TYPE_2:
 				if (rthdr->hdrlen != 2 ||
 				    rthdr->segments_left != 1)
@@ -754,7 +755,7 @@ done:
 	case IPV6_IPSEC_POLICY:
 	case IPV6_XFRM_POLICY:
 		retv = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			break;
 		retv = xfrm_user_policy(sk, optname, optval, optlen);
 		break;
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 92f8e48..28dfa5f 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -163,7 +163,7 @@ int ipv6_sock_mc_join(struct sock *sk, int ifindex, const struct in6_addr *addr)
 		rt = rt6_lookup(net, addr, NULL, 0, 0);
 		if (rt) {
 			dev = rt->dst.dev;
-			dst_release(&rt->dst);
+			ip6_rt_put(rt);
 		}
 	} else
 		dev = dev_get_by_index_rcu(net, ifindex);
@@ -260,7 +260,7 @@ static struct inet6_dev *ip6_mc_find_dev_rcu(struct net *net,
 
 		if (rt) {
 			dev = rt->dst.dev;
-			dst_release(&rt->dst);
+			ip6_rt_put(rt);
 		}
 	} else
 		dev = dev_get_by_index_rcu(net, ifindex);
@@ -284,6 +284,9 @@ void ipv6_sock_mc_close(struct sock *sk)
 	struct ipv6_mc_socklist *mc_lst;
 	struct net *net = sock_net(sk);
 
+	if (!rcu_access_pointer(np->ipv6_mc_list))
+		return;
+
 	spin_lock(&ipv6_sk_mc_lock);
 	while ((mc_lst = rcu_dereference_protected(np->ipv6_mc_list,
 				lockdep_is_held(&ipv6_sk_mc_lock))) != NULL) {
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 2edce30..4c02e6a 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -370,12 +370,12 @@ static void pndisc_destructor(struct pneigh_entry *n)
 	ipv6_dev_mc_dec(dev, &maddr);
 }
 
-struct sk_buff *ndisc_build_skb(struct net_device *dev,
-				const struct in6_addr *daddr,
-				const struct in6_addr *saddr,
-				struct icmp6hdr *icmp6h,
-				const struct in6_addr *target,
-				int llinfo)
+static struct sk_buff *ndisc_build_skb(struct net_device *dev,
+				       const struct in6_addr *daddr,
+				       const struct in6_addr *saddr,
+				       struct icmp6hdr *icmp6h,
+				       const struct in6_addr *target,
+				       int llinfo)
 {
 	struct net *net = dev_net(dev);
 	struct sock *sk = net->ipv6.ndisc_sk;
@@ -431,14 +431,11 @@ struct sk_buff *ndisc_build_skb(struct net_device *dev,
 	return skb;
 }
 
-EXPORT_SYMBOL(ndisc_build_skb);
-
-void ndisc_send_skb(struct sk_buff *skb,
-		    struct net_device *dev,
-		    struct neighbour *neigh,
-		    const struct in6_addr *daddr,
-		    const struct in6_addr *saddr,
-		    struct icmp6hdr *icmp6h)
+static void ndisc_send_skb(struct sk_buff *skb, struct net_device *dev,
+			   struct neighbour *neigh,
+			   const struct in6_addr *daddr,
+			   const struct in6_addr *saddr,
+			   struct icmp6hdr *icmp6h)
 {
 	struct flowi6 fl6;
 	struct dst_entry *dst;
@@ -473,8 +470,6 @@ void ndisc_send_skb(struct sk_buff *skb,
 	rcu_read_unlock();
 }
 
-EXPORT_SYMBOL(ndisc_send_skb);
-
 /*
  *	Send a Neighbour Discover packet
  */
@@ -535,7 +530,6 @@ static void ndisc_send_unsol_na(struct net_device *dev)
 {
 	struct inet6_dev *idev;
 	struct inet6_ifaddr *ifa;
-	struct in6_addr mcaddr = IN6ADDR_LINKLOCAL_ALLNODES_INIT;
 
 	idev = in6_dev_get(dev);
 	if (!idev)
@@ -543,7 +537,7 @@ static void ndisc_send_unsol_na(struct net_device *dev)
 
 	read_lock_bh(&idev->lock);
 	list_for_each_entry(ifa, &idev->addr_list, if_list) {
-		ndisc_send_na(dev, NULL, &mcaddr, &ifa->addr,
+		ndisc_send_na(dev, NULL, &in6addr_linklocal_allnodes, &ifa->addr,
 			      /*router=*/ !!idev->cnf.forwarding,
 			      /*solicited=*/ false, /*override=*/ true,
 			      /*inc_opt=*/ true);
@@ -905,7 +899,7 @@ static void ndisc_recv_na(struct sk_buff *skb)
 		if (lladdr && !memcmp(lladdr, dev->dev_addr, dev->addr_len) &&
 		    net->ipv6.devconf_all->forwarding && net->ipv6.devconf_all->proxy_ndp &&
 		    pneigh_lookup(&nd_tbl, net, &msg->target, dev, 0)) {
-			/* XXX: idev->cnf.prixy_ndp */
+			/* XXX: idev->cnf.proxy_ndp */
 			goto out;
 		}
 
@@ -1033,18 +1027,6 @@ errout:
 	rtnl_set_sk_err(net, RTNLGRP_ND_USEROPT, err);
 }
 
-static inline int accept_ra(struct inet6_dev *in6_dev)
-{
-	/*
-	 * If forwarding is enabled, RA are not accepted unless the special
-	 * hybrid mode (accept_ra=2) is enabled.
-	 */
-	if (in6_dev->cnf.forwarding && in6_dev->cnf.accept_ra < 2)
-		return 0;
-
-	return in6_dev->cnf.accept_ra;
-}
-
 static void ndisc_router_discovery(struct sk_buff *skb)
 {
 	struct ra_msg *ra_msg = (struct ra_msg *)skb_transport_header(skb);
@@ -1092,7 +1074,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 		return;
 	}
 
-	if (!accept_ra(in6_dev))
+	if (!ipv6_accept_ra(in6_dev))
 		goto skip_linkparms;
 
 #ifdef CONFIG_IPV6_NDISC_NODETYPE
@@ -1144,7 +1126,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 			ND_PRINTK(0, err,
 				  "RA: %s got default router without neighbour\n",
 				  __func__);
-			dst_release(&rt->dst);
+			ip6_rt_put(rt);
 			return;
 		}
 	}
@@ -1169,7 +1151,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 			ND_PRINTK(0, err,
 				  "RA: %s got default router without neighbour\n",
 				  __func__);
-			dst_release(&rt->dst);
+			ip6_rt_put(rt);
 			return;
 		}
 		neigh->flags |= NTF_ROUTER;
@@ -1248,7 +1230,7 @@ skip_linkparms:
 			     NEIGH_UPDATE_F_ISROUTER);
 	}
 
-	if (!accept_ra(in6_dev))
+	if (!ipv6_accept_ra(in6_dev))
 		goto out;
 
 #ifdef CONFIG_IPV6_ROUTE_INFO
@@ -1325,8 +1307,7 @@ skip_routeinfo:
 		ND_PRINTK(2, warn, "RA: invalid RA options\n");
 	}
 out:
-	if (rt)
-		dst_release(&rt->dst);
+	ip6_rt_put(rt);
 	if (neigh)
 		neigh_release(neigh);
 }
@@ -1574,11 +1555,18 @@ static int ndisc_netdev_event(struct notifier_block *this, unsigned long event,
 {
 	struct net_device *dev = ptr;
 	struct net *net = dev_net(dev);
+	struct inet6_dev *idev;
 
 	switch (event) {
 	case NETDEV_CHANGEADDR:
 		neigh_changeaddr(&nd_tbl, dev);
 		fib6_run_gc(~0UL, net);
+		idev = in6_dev_get(dev);
+		if (!idev)
+			break;
+		if (idev->cnf.ndisc_notify)
+			ndisc_send_unsol_na(dev);
+		in6_dev_put(idev);
 		break;
 	case NETDEV_DOWN:
 		neigh_ifdown(&nd_tbl, dev);
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index d7cb045..125a90d 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -207,8 +207,7 @@ ip6t_get_target_c(const struct ip6t_entry *e)
 	return ip6t_get_target((struct ip6t_entry *)e);
 }
 
-#if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \
-    defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE)
+#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
 /* This cries for unification! */
 static const char *const hooknames[] = {
 	[NF_INET_PRE_ROUTING]		= "PREROUTING",
@@ -381,8 +380,7 @@ ip6t_do_table(struct sk_buff *skb,
 		t = ip6t_get_target_c(e);
 		IP_NF_ASSERT(t->u.kernel.target);
 
-#if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \
-    defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE)
+#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
 		/* The packet is traced: log it */
 		if (unlikely(skb->nf_trace))
 			trace_packet(skb, hook, in, out,
@@ -1856,7 +1854,7 @@ compat_do_ip6t_set_ctl(struct sock *sk, int cmd, void __user *user,
 {
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	switch (cmd) {
@@ -1971,7 +1969,7 @@ compat_do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 {
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	switch (cmd) {
@@ -1993,7 +1991,7 @@ do_ip6t_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
 {
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	switch (cmd) {
@@ -2018,7 +2016,7 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 {
 	int ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	switch (cmd) {
@@ -2273,112 +2271,9 @@ static void __exit ip6_tables_fini(void)
 	unregister_pernet_subsys(&ip6_tables_net_ops);
 }
 
-/*
- * find the offset to specified header or the protocol number of last header
- * if target < 0. "last header" is transport protocol header, ESP, or
- * "No next header".
- *
- * Note that *offset is used as input/output parameter. an if it is not zero,
- * then it must be a valid offset to an inner IPv6 header. This can be used
- * to explore inner IPv6 header, eg. ICMPv6 error messages.
- *
- * If target header is found, its offset is set in *offset and return protocol
- * number. Otherwise, return -1.
- *
- * If the first fragment doesn't contain the final protocol header or
- * NEXTHDR_NONE it is considered invalid.
- *
- * Note that non-1st fragment is special case that "the protocol number
- * of last header" is "next header" field in Fragment header. In this case,
- * *offset is meaningless and fragment offset is stored in *fragoff if fragoff
- * isn't NULL.
- *
- * if flags is not NULL and it's a fragment, then the frag flag IP6T_FH_F_FRAG
- * will be set. If it's an AH header, the IP6T_FH_F_AUTH flag is set and
- * target < 0, then this function will stop at the AH header.
- */
-int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
-		  int target, unsigned short *fragoff, int *flags)
-{
-	unsigned int start = skb_network_offset(skb) + sizeof(struct ipv6hdr);
-	u8 nexthdr = ipv6_hdr(skb)->nexthdr;
-	unsigned int len;
-
-	if (fragoff)
-		*fragoff = 0;
-
-	if (*offset) {
-		struct ipv6hdr _ip6, *ip6;
-
-		ip6 = skb_header_pointer(skb, *offset, sizeof(_ip6), &_ip6);
-		if (!ip6 || (ip6->version != 6)) {
-			printk(KERN_ERR "IPv6 header not found\n");
-			return -EBADMSG;
-		}
-		start = *offset + sizeof(struct ipv6hdr);
-		nexthdr = ip6->nexthdr;
-	}
-	len = skb->len - start;
-
-	while (nexthdr != target) {
-		struct ipv6_opt_hdr _hdr, *hp;
-		unsigned int hdrlen;
-
-		if ((!ipv6_ext_hdr(nexthdr)) || nexthdr == NEXTHDR_NONE) {
-			if (target < 0)
-				break;
-			return -ENOENT;
-		}
-
-		hp = skb_header_pointer(skb, start, sizeof(_hdr), &_hdr);
-		if (hp == NULL)
-			return -EBADMSG;
-		if (nexthdr == NEXTHDR_FRAGMENT) {
-			unsigned short _frag_off;
-			__be16 *fp;
-
-			if (flags)	/* Indicate that this is a fragment */
-				*flags |= IP6T_FH_F_FRAG;
-			fp = skb_header_pointer(skb,
-						start+offsetof(struct frag_hdr,
-							       frag_off),
-						sizeof(_frag_off),
-						&_frag_off);
-			if (fp == NULL)
-				return -EBADMSG;
-
-			_frag_off = ntohs(*fp) & ~0x7;
-			if (_frag_off) {
-				if (target < 0 &&
-				    ((!ipv6_ext_hdr(hp->nexthdr)) ||
-				     hp->nexthdr == NEXTHDR_NONE)) {
-					if (fragoff)
-						*fragoff = _frag_off;
-					return hp->nexthdr;
-				}
-				return -ENOENT;
-			}
-			hdrlen = 8;
-		} else if (nexthdr == NEXTHDR_AUTH) {
-			if (flags && (*flags & IP6T_FH_F_AUTH) && (target < 0))
-				break;
-			hdrlen = (hp->hdrlen + 2) << 2;
-		} else
-			hdrlen = ipv6_optlen(hp);
-
-		nexthdr = hp->nexthdr;
-		len -= hdrlen;
-		start += hdrlen;
-	}
-
-	*offset = start;
-	return nexthdr;
-}
-
 EXPORT_SYMBOL(ip6t_register_table);
 EXPORT_SYMBOL(ip6t_unregister_table);
 EXPORT_SYMBOL(ip6t_do_table);
-EXPORT_SYMBOL(ipv6_find_hdr);
 
 module_init(ip6_tables_init);
 module_exit(ip6_tables_fini);
diff --git a/net/ipv6/netfilter/ip6t_rpfilter.c b/net/ipv6/netfilter/ip6t_rpfilter.c
index 5d1d8b0..5060d54 100644
--- a/net/ipv6/netfilter/ip6t_rpfilter.c
+++ b/net/ipv6/netfilter/ip6t_rpfilter.c
@@ -67,7 +67,7 @@ static bool rpfilter_lookup_reverse6(const struct sk_buff *skb,
 	if (rt->rt6i_idev->dev == dev || (flags & XT_RPFILTER_LOOSE))
 		ret = true;
  out:
-	dst_release(&rt->dst);
+	ip6_rt_put(rt);
 	return ret;
 }
 
diff --git a/net/ipv6/netfilter/ip6table_nat.c b/net/ipv6/netfilter/ip6table_nat.c
index d57dab1..6c8ae24 100644
--- a/net/ipv6/netfilter/ip6table_nat.c
+++ b/net/ipv6/netfilter/ip6table_nat.c
@@ -137,6 +137,10 @@ nf_nat_ipv6_fn(unsigned int hooknum,
 		/* ESTABLISHED */
 		NF_CT_ASSERT(ctinfo == IP_CT_ESTABLISHED ||
 			     ctinfo == IP_CT_ESTABLISHED_REPLY);
+		if (nf_nat_oif_changed(hooknum, ctinfo, nat, out)) {
+			nf_ct_kill_acct(ct, ctinfo, skb);
+			return NF_DROP;
+		}
 	}
 
 	return nf_nat_packet(ct, ctinfo, hooknum, skb);
@@ -277,9 +281,7 @@ static int __net_init ip6table_nat_net_init(struct net *net)
 		return -ENOMEM;
 	net->ipv6.ip6table_nat = ip6t_register_table(net, &nf_nat_ipv6_table, repl);
 	kfree(repl);
-	if (IS_ERR(net->ipv6.ip6table_nat))
-		return PTR_ERR(net->ipv6.ip6table_nat);
-	return 0;
+	return PTR_RET(net->ipv6.ip6table_nat);
 }
 
 static void __net_exit ip6table_nat_net_exit(struct net *net)
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index 8860d23..00ee17c 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -21,6 +21,7 @@
 
 #include <linux/netfilter_bridge.h>
 #include <linux/netfilter_ipv6.h>
+#include <linux/netfilter_ipv6/ip6_tables.h>
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_helper.h>
 #include <net/netfilter/nf_conntrack_l4proto.h>
@@ -295,7 +296,56 @@ static struct nf_hook_ops ipv6_conntrack_ops[] __read_mostly = {
 	},
 };
 
-#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
+static int
+ipv6_getorigdst(struct sock *sk, int optval, void __user *user, int *len)
+{
+	const struct inet_sock *inet = inet_sk(sk);
+	const struct ipv6_pinfo *inet6 = inet6_sk(sk);
+	const struct nf_conntrack_tuple_hash *h;
+	struct sockaddr_in6 sin6;
+	struct nf_conntrack_tuple tuple = { .src.l3num = NFPROTO_IPV6 };
+	struct nf_conn *ct;
+
+	tuple.src.u3.in6 = inet6->rcv_saddr;
+	tuple.src.u.tcp.port = inet->inet_sport;
+	tuple.dst.u3.in6 = inet6->daddr;
+	tuple.dst.u.tcp.port = inet->inet_dport;
+	tuple.dst.protonum = sk->sk_protocol;
+
+	if (sk->sk_protocol != IPPROTO_TCP && sk->sk_protocol != IPPROTO_SCTP)
+		return -ENOPROTOOPT;
+
+	if (*len < 0 || (unsigned int) *len < sizeof(sin6))
+		return -EINVAL;
+
+	h = nf_conntrack_find_get(sock_net(sk), NF_CT_DEFAULT_ZONE, &tuple);
+	if (!h) {
+		pr_debug("IP6T_SO_ORIGINAL_DST: Can't find %pI6c/%u-%pI6c/%u.\n",
+			 &tuple.src.u3.ip6, ntohs(tuple.src.u.tcp.port),
+			 &tuple.dst.u3.ip6, ntohs(tuple.dst.u.tcp.port));
+		return -ENOENT;
+	}
+
+	ct = nf_ct_tuplehash_to_ctrack(h);
+
+	sin6.sin6_family = AF_INET6;
+	sin6.sin6_port = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u.tcp.port;
+	sin6.sin6_flowinfo = inet6->flow_label & IPV6_FLOWINFO_MASK;
+	memcpy(&sin6.sin6_addr,
+		&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.in6,
+					sizeof(sin6.sin6_addr));
+
+	nf_ct_put(ct);
+
+	if (ipv6_addr_type(&sin6.sin6_addr) & IPV6_ADDR_LINKLOCAL)
+		sin6.sin6_scope_id = sk->sk_bound_dev_if;
+	else
+		sin6.sin6_scope_id = 0;
+
+	return copy_to_user(user, &sin6, sizeof(sin6)) ? -EFAULT : 0;
+}
+
+#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
 
 #include <linux/netfilter/nfnetlink.h>
 #include <linux/netfilter/nfnetlink_conntrack.h>
@@ -346,7 +396,7 @@ struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6 __read_mostly = {
 	.invert_tuple		= ipv6_invert_tuple,
 	.print_tuple		= ipv6_print_tuple,
 	.get_l4proto		= ipv6_get_l4proto,
-#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
+#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
 	.tuple_to_nlattr	= ipv6_tuple_to_nlattr,
 	.nlattr_tuple_size	= ipv6_nlattr_tuple_size,
 	.nlattr_to_tuple	= ipv6_nlattr_to_tuple,
@@ -359,6 +409,14 @@ MODULE_ALIAS("nf_conntrack-" __stringify(AF_INET6));
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Yasuyuki KOZAKAI @USAGI <yasuyuki.kozakai@toshiba.co.jp>");
 
+static struct nf_sockopt_ops so_getorigdst6 = {
+	.pf		= NFPROTO_IPV6,
+	.get_optmin	= IP6T_SO_ORIGINAL_DST,
+	.get_optmax	= IP6T_SO_ORIGINAL_DST + 1,
+	.get		= ipv6_getorigdst,
+	.owner		= THIS_MODULE,
+};
+
 static int ipv6_net_init(struct net *net)
 {
 	int ret = 0;
@@ -425,6 +483,12 @@ static int __init nf_conntrack_l3proto_ipv6_init(void)
 	need_conntrack();
 	nf_defrag_ipv6_enable();
 
+	ret = nf_register_sockopt(&so_getorigdst6);
+	if (ret < 0) {
+		pr_err("Unable to register netfilter socket option\n");
+		return ret;
+	}
+
 	ret = register_pernet_subsys(&ipv6_net_ops);
 	if (ret < 0)
 		goto cleanup_pernet;
@@ -440,6 +504,7 @@ static int __init nf_conntrack_l3proto_ipv6_init(void)
  cleanup_ipv6:
 	unregister_pernet_subsys(&ipv6_net_ops);
  cleanup_pernet:
+	nf_unregister_sockopt(&so_getorigdst6);
 	return ret;
 }
 
@@ -448,6 +513,7 @@ static void __exit nf_conntrack_l3proto_ipv6_fini(void)
 	synchronize_net();
 	nf_unregister_hooks(ipv6_conntrack_ops, ARRAY_SIZE(ipv6_conntrack_ops));
 	unregister_pernet_subsys(&ipv6_net_ops);
+	nf_unregister_sockopt(&so_getorigdst6);
 }
 
 module_init(nf_conntrack_l3proto_ipv6_init);
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index 2d54b20..24df3dd 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -232,7 +232,7 @@ icmpv6_error(struct net *net, struct nf_conn *tmpl,
 	return icmpv6_error_message(net, tmpl, skb, dataoff, ctinfo, hooknum);
 }
 
-#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
+#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
 
 #include <linux/netfilter/nfnetlink.h>
 #include <linux/netfilter/nfnetlink_conntrack.h>
@@ -375,7 +375,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly =
 	.get_timeouts		= icmpv6_get_timeouts,
 	.new			= icmpv6_new,
 	.error			= icmpv6_error,
-#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
+#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
 	.tuple_to_nlattr	= icmpv6_tuple_to_nlattr,
 	.nlattr_tuple_size	= icmpv6_nlattr_tuple_size,
 	.nlattr_to_tuple	= icmpv6_nlattr_to_tuple,
diff --git a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
index cdd6d04..aacd121 100644
--- a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
+++ b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
@@ -19,7 +19,7 @@
 
 #include <linux/netfilter_ipv6.h>
 #include <linux/netfilter_bridge.h>
-#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+#if IS_ENABLED(CONFIG_NF_CONNTRACK)
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_helper.h>
 #include <net/netfilter/nf_conntrack_l4proto.h>
@@ -35,7 +35,7 @@ static enum ip6_defrag_users nf_ct6_defrag_user(unsigned int hooknum,
 {
 	u16 zone = NF_CT_DEFAULT_ZONE;
 
-#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+#if IS_ENABLED(CONFIG_NF_CONNTRACK)
 	if (skb->nfct)
 		zone = nf_ct_zone((struct nf_conn *)skb->nfct);
 #endif
@@ -60,7 +60,7 @@ static unsigned int ipv6_defrag(unsigned int hooknum,
 {
 	struct sk_buff *reasm;
 
-#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+#if IS_ENABLED(CONFIG_NF_CONNTRACK)
 	/* Previously seen (loopback)?	*/
 	if (skb->nfct && !nf_ct_is_template((struct nf_conn *)skb->nfct))
 		return NF_ACCEPT;
diff --git a/net/ipv6/netfilter/nf_nat_proto_icmpv6.c b/net/ipv6/netfilter/nf_nat_proto_icmpv6.c
index 5d6da78..61aaf70 100644
--- a/net/ipv6/netfilter/nf_nat_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_nat_proto_icmpv6.c
@@ -84,7 +84,7 @@ const struct nf_nat_l4proto nf_nat_l4proto_icmpv6 = {
 	.manip_pkt		= icmpv6_manip_pkt,
 	.in_range		= icmpv6_in_range,
 	.unique_tuple		= icmpv6_unique_tuple,
-#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
+#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
 	.nlattr_to_range	= nf_nat_l4proto_nlattr_to_range,
 #endif
 };
diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
new file mode 100644
index 0000000..c2e73e6
--- /dev/null
+++ b/net/ipv6/output_core.c
@@ -0,0 +1,76 @@
+/*
+ * IPv6 library code, needed by static components when full IPv6 support is
+ * not configured or static.  These functions are needed by GSO/GRO implementation.
+ */
+#include <linux/export.h>
+#include <net/ipv6.h>
+#include <net/ip6_fib.h>
+
+void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt)
+{
+	static atomic_t ipv6_fragmentation_id;
+	int old, new;
+
+#if IS_ENABLED(CONFIG_IPV6)
+	if (rt && !(rt->dst.flags & DST_NOPEER)) {
+		struct inet_peer *peer;
+		struct net *net;
+
+		net = dev_net(rt->dst.dev);
+		peer = inet_getpeer_v6(net->ipv6.peers, &rt->rt6i_dst.addr, 1);
+		if (peer) {
+			fhdr->identification = htonl(inet_getid(peer, 0));
+			inet_putpeer(peer);
+			return;
+		}
+	}
+#endif
+	do {
+		old = atomic_read(&ipv6_fragmentation_id);
+		new = old + 1;
+		if (!new)
+			new = 1;
+	} while (atomic_cmpxchg(&ipv6_fragmentation_id, old, new) != old);
+	fhdr->identification = htonl(new);
+}
+EXPORT_SYMBOL(ipv6_select_ident);
+
+int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
+{
+	u16 offset = sizeof(struct ipv6hdr);
+	struct ipv6_opt_hdr *exthdr =
+				(struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
+	unsigned int packet_len = skb->tail - skb->network_header;
+	int found_rhdr = 0;
+	*nexthdr = &ipv6_hdr(skb)->nexthdr;
+
+	while (offset + 1 <= packet_len) {
+
+		switch (**nexthdr) {
+
+		case NEXTHDR_HOP:
+			break;
+		case NEXTHDR_ROUTING:
+			found_rhdr = 1;
+			break;
+		case NEXTHDR_DEST:
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
+			if (ipv6_find_tlv(skb, offset, IPV6_TLV_HAO) >= 0)
+				break;
+#endif
+			if (found_rhdr)
+				return offset;
+			break;
+		default :
+			return offset;
+		}
+
+		offset += ipv6_optlen(exthdr);
+		*nexthdr = &exthdr->nexthdr;
+		exthdr = (struct ipv6_opt_hdr *)(skb_network_header(skb) +
+						 offset);
+	}
+
+	return offset;
+}
+EXPORT_SYMBOL(ip6_find_1stfragopt);
diff --git a/net/ipv6/protocol.c b/net/ipv6/protocol.c
index 053082d..22d1bd4 100644
--- a/net/ipv6/protocol.c
+++ b/net/ipv6/protocol.c
@@ -25,7 +25,9 @@
 #include <linux/spinlock.h>
 #include <net/protocol.h>
 
+#if IS_ENABLED(CONFIG_IPV6)
 const struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS] __read_mostly;
+EXPORT_SYMBOL(inet6_protos);
 
 int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol)
 {
@@ -50,3 +52,26 @@ int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char protocol
 	return ret;
 }
 EXPORT_SYMBOL(inet6_del_protocol);
+#endif
+
+const struct net_offload __rcu *inet6_offloads[MAX_INET_PROTOS] __read_mostly;
+
+int inet6_add_offload(const struct net_offload *prot, unsigned char protocol)
+{
+	return !cmpxchg((const struct net_offload **)&inet6_offloads[protocol],
+			NULL, prot) ? 0 : -1;
+}
+EXPORT_SYMBOL(inet6_add_offload);
+
+int inet6_del_offload(const struct net_offload *prot, unsigned char protocol)
+{
+	int ret;
+
+	ret = (cmpxchg((const struct net_offload **)&inet6_offloads[protocol],
+		       prot, NULL) == prot) ? 0 : -1;
+
+	synchronize_net();
+
+	return ret;
+}
+EXPORT_SYMBOL(inet6_del_offload);
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index d8e95c7..6cd29b1 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -50,7 +50,7 @@
 #include <net/udp.h>
 #include <net/inet_common.h>
 #include <net/tcp_states.h>
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 #include <net/mip6.h>
 #endif
 #include <linux/mroute6.h>
@@ -123,7 +123,7 @@ static int icmpv6_filter(const struct sock *sk, const struct sk_buff *skb)
 	return 1;
 }
 
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 typedef int mh_filter_t(struct sock *sock, struct sk_buff *skb);
 
 static mh_filter_t __rcu *mh_filter __read_mostly;
@@ -184,7 +184,7 @@ static bool ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
 			filtered = icmpv6_filter(sk, skb);
 			break;
 
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 		case IPPROTO_MH:
 		{
 			/* XXX: To validate MH only once for each packet,
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index da8a4e3..e5253ec 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -616,6 +616,10 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
 		table[0].data = &net->ipv6.frags.high_thresh;
 		table[1].data = &net->ipv6.frags.low_thresh;
 		table[2].data = &net->ipv6.frags.timeout;
+
+		/* Don't export sysctls to unprivileged users */
+		if (net->user_ns != &init_user_ns)
+			table[0].procname = NULL;
 	}
 
 	hdr = register_net_sysctl(net, "net/ipv6", table);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index b1e6cf0..e229a3b 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -57,6 +57,7 @@
 #include <net/xfrm.h>
 #include <net/netevent.h>
 #include <net/netlink.h>
+#include <net/nexthop.h>
 
 #include <asm/uaccess.h>
 
@@ -289,6 +290,8 @@ static inline struct rt6_info *ip6_dst_alloc(struct net *net,
 		memset(dst + 1, 0, sizeof(*rt) - sizeof(*dst));
 		rt6_init_peer(rt, table ? &table->tb6_peers : net->ipv6.peers);
 		rt->rt6i_genid = rt_genid(net);
+		INIT_LIST_HEAD(&rt->rt6i_siblings);
+		rt->rt6i_nsiblings = 0;
 	}
 	return rt;
 }
@@ -318,13 +321,6 @@ static void ip6_dst_destroy(struct dst_entry *dst)
 	}
 }
 
-static atomic_t __rt6_peer_genid = ATOMIC_INIT(0);
-
-static u32 rt6_peer_genid(void)
-{
-	return atomic_read(&__rt6_peer_genid);
-}
-
 void rt6_bind_peer(struct rt6_info *rt, int create)
 {
 	struct inet_peer_base *base;
@@ -338,8 +334,6 @@ void rt6_bind_peer(struct rt6_info *rt, int create)
 	if (peer) {
 		if (!rt6_set_peer(rt, peer))
 			inet_putpeer(peer);
-		else
-			rt->rt6i_peer_genid = rt6_peer_genid();
 	}
 }
 
@@ -385,6 +379,69 @@ static bool rt6_need_strict(const struct in6_addr *daddr)
 		(IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK);
 }
 
+/* Multipath route selection:
+ *   Hash based function using packet header and flowlabel.
+ * Adapted from fib_info_hashfn()
+ */
+static int rt6_info_hash_nhsfn(unsigned int candidate_count,
+			       const struct flowi6 *fl6)
+{
+	unsigned int val = fl6->flowi6_proto;
+
+	val ^= (__force u32)fl6->daddr.s6_addr32[0];
+	val ^= (__force u32)fl6->daddr.s6_addr32[1];
+	val ^= (__force u32)fl6->daddr.s6_addr32[2];
+	val ^= (__force u32)fl6->daddr.s6_addr32[3];
+
+	val ^= (__force u32)fl6->saddr.s6_addr32[0];
+	val ^= (__force u32)fl6->saddr.s6_addr32[1];
+	val ^= (__force u32)fl6->saddr.s6_addr32[2];
+	val ^= (__force u32)fl6->saddr.s6_addr32[3];
+
+	/* Work only if this not encapsulated */
+	switch (fl6->flowi6_proto) {
+	case IPPROTO_UDP:
+	case IPPROTO_TCP:
+	case IPPROTO_SCTP:
+		val ^= (__force u16)fl6->fl6_sport;
+		val ^= (__force u16)fl6->fl6_dport;
+		break;
+
+	case IPPROTO_ICMPV6:
+		val ^= (__force u16)fl6->fl6_icmp_type;
+		val ^= (__force u16)fl6->fl6_icmp_code;
+		break;
+	}
+	/* RFC6438 recommands to use flowlabel */
+	val ^= (__force u32)fl6->flowlabel;
+
+	/* Perhaps, we need to tune, this function? */
+	val = val ^ (val >> 7) ^ (val >> 12);
+	return val % candidate_count;
+}
+
+static struct rt6_info *rt6_multipath_select(struct rt6_info *match,
+					     struct flowi6 *fl6)
+{
+	struct rt6_info *sibling, *next_sibling;
+	int route_choosen;
+
+	route_choosen = rt6_info_hash_nhsfn(match->rt6i_nsiblings + 1, fl6);
+	/* Don't change the route, if route_choosen == 0
+	 * (siblings does not include ourself)
+	 */
+	if (route_choosen)
+		list_for_each_entry_safe(sibling, next_sibling,
+				&match->rt6i_siblings, rt6i_siblings) {
+			route_choosen--;
+			if (route_choosen == 0) {
+				match = sibling;
+				break;
+			}
+		}
+	return match;
+}
+
 /*
  *	Route lookup. Any table->tb6_lock is implied.
  */
@@ -487,35 +544,32 @@ static inline int rt6_check_dev(struct rt6_info *rt, int oif)
 	return 0;
 }
 
-static inline int rt6_check_neigh(struct rt6_info *rt)
+static inline bool rt6_check_neigh(struct rt6_info *rt)
 {
 	struct neighbour *neigh;
-	int m;
+	bool ret = false;
 
 	neigh = rt->n;
 	if (rt->rt6i_flags & RTF_NONEXTHOP ||
 	    !(rt->rt6i_flags & RTF_GATEWAY))
-		m = 1;
+		ret = true;
 	else if (neigh) {
 		read_lock_bh(&neigh->lock);
 		if (neigh->nud_state & NUD_VALID)
-			m = 2;
+			ret = true;
 #ifdef CONFIG_IPV6_ROUTER_PREF
-		else if (neigh->nud_state & NUD_FAILED)
-			m = 0;
+		else if (!(neigh->nud_state & NUD_FAILED))
+			ret = true;
 #endif
-		else
-			m = 1;
 		read_unlock_bh(&neigh->lock);
-	} else
-		m = 0;
-	return m;
+	}
+	return ret;
 }
 
 static int rt6_score_route(struct rt6_info *rt, int oif,
 			   int strict)
 {
-	int m, n;
+	int m;
 
 	m = rt6_check_dev(rt, oif);
 	if (!m && (strict & RT6_LOOKUP_F_IFACE))
@@ -523,8 +577,7 @@ static int rt6_score_route(struct rt6_info *rt, int oif,
 #ifdef CONFIG_IPV6_ROUTER_PREF
 	m |= IPV6_DECODE_PREF(IPV6_EXTRACT_PREF(rt->rt6i_flags)) << 2;
 #endif
-	n = rt6_check_neigh(rt);
-	if (!n && (strict & RT6_LOOKUP_F_REACHABLE))
+	if (!rt6_check_neigh(rt) && (strict & RT6_LOOKUP_F_REACHABLE))
 		return -1;
 	return m;
 }
@@ -666,7 +719,7 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
 		else
 			rt6_set_expires(rt, jiffies + HZ * lifetime);
 
-		dst_release(&rt->dst);
+		ip6_rt_put(rt);
 	}
 	return 0;
 }
@@ -702,6 +755,8 @@ static struct rt6_info *ip6_pol_route_lookup(struct net *net,
 restart:
 	rt = fn->leaf;
 	rt = rt6_device_match(net, rt, &fl6->saddr, fl6->flowi6_oif, flags);
+	if (rt->rt6i_nsiblings && fl6->flowi6_oif == 0)
+		rt = rt6_multipath_select(rt, fl6);
 	BACKTRACK(net, &fl6->saddr);
 out:
 	dst_use(&rt->dst, jiffies);
@@ -863,7 +918,8 @@ restart_2:
 
 restart:
 	rt = rt6_select(fn, oif, strict | reachable);
-
+	if (rt->rt6i_nsiblings && oif == 0)
+		rt = rt6_multipath_select(rt, fl6);
 	BACKTRACK(net, &fl6->saddr);
 	if (rt == net->ipv6.ip6_null_entry ||
 	    rt->rt6i_flags & RTF_CACHE)
@@ -879,7 +935,7 @@ restart:
 	else
 		goto out2;
 
-	dst_release(&rt->dst);
+	ip6_rt_put(rt);
 	rt = nrt ? : net->ipv6.ip6_null_entry;
 
 	dst_hold(&rt->dst);
@@ -896,7 +952,7 @@ restart:
 	 * Race condition! In the gap, when table->tb6_lock was
 	 * released someone could insert this route.  Relookup.
 	 */
-	dst_release(&rt->dst);
+	ip6_rt_put(rt);
 	goto relookup;
 
 out:
@@ -1030,14 +1086,9 @@ static struct dst_entry *ip6_dst_check(struct dst_entry *dst, u32 cookie)
 	if (rt->rt6i_genid != rt_genid(dev_net(rt->dst.dev)))
 		return NULL;
 
-	if (rt->rt6i_node && (rt->rt6i_node->fn_sernum == cookie)) {
-		if (rt->rt6i_peer_genid != rt6_peer_genid()) {
-			if (!rt6_has_peer(rt))
-				rt6_bind_peer(rt, 0);
-			rt->rt6i_peer_genid = rt6_peer_genid();
-		}
+	if (rt->rt6i_node && (rt->rt6i_node->fn_sernum == cookie))
 		return dst;
-	}
+
 	return NULL;
 }
 
@@ -1316,12 +1367,6 @@ out:
 	return entries > rt_max_size;
 }
 
-/* Clean host part of a prefix. Not necessary in radix tree,
-   but results in cleaner routing tables.
-
-   Remove it only when all the things will work!
- */
-
 int ip6_dst_hoplimit(struct dst_entry *dst)
 {
 	int hoplimit = dst_metric_raw(dst, RTAX_HOPLIMIT);
@@ -1507,7 +1552,7 @@ int ip6_route_add(struct fib6_config *cfg)
 				goto out;
 			if (dev) {
 				if (dev != grt->dst.dev) {
-					dst_release(&grt->dst);
+					ip6_rt_put(grt);
 					goto out;
 				}
 			} else {
@@ -1518,7 +1563,7 @@ int ip6_route_add(struct fib6_config *cfg)
 			}
 			if (!(grt->rt6i_flags & RTF_GATEWAY))
 				err = 0;
-			dst_release(&grt->dst);
+			ip6_rt_put(grt);
 
 			if (err)
 				goto out;
@@ -1604,7 +1649,7 @@ static int __ip6_del_rt(struct rt6_info *rt, struct nl_info *info)
 	write_unlock_bh(&table->tb6_lock);
 
 out:
-	dst_release(&rt->dst);
+	ip6_rt_put(rt);
 	return err;
 }
 
@@ -1987,7 +2032,7 @@ int ipv6_route_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 	switch(cmd) {
 	case SIOCADDRT:		/* Add a route */
 	case SIOCDELRT:		/* Delete a route */
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 		err = copy_from_user(&rtmsg, arg,
 				     sizeof(struct in6_rtmsg));
@@ -2249,6 +2294,7 @@ static const struct nla_policy rtm_ipv6_policy[RTA_MAX+1] = {
 	[RTA_IIF]		= { .type = NLA_U32 },
 	[RTA_PRIORITY]          = { .type = NLA_U32 },
 	[RTA_METRICS]           = { .type = NLA_NESTED },
+	[RTA_MULTIPATH]		= { .len = sizeof(struct rtnexthop) },
 };
 
 static int rtm_to_fib6_config(struct sk_buff *skb, struct nlmsghdr *nlh,
@@ -2326,11 +2372,71 @@ static int rtm_to_fib6_config(struct sk_buff *skb, struct nlmsghdr *nlh,
 	if (tb[RTA_TABLE])
 		cfg->fc_table = nla_get_u32(tb[RTA_TABLE]);
 
+	if (tb[RTA_MULTIPATH]) {
+		cfg->fc_mp = nla_data(tb[RTA_MULTIPATH]);
+		cfg->fc_mp_len = nla_len(tb[RTA_MULTIPATH]);
+	}
+
 	err = 0;
 errout:
 	return err;
 }
 
+static int ip6_route_multipath(struct fib6_config *cfg, int add)
+{
+	struct fib6_config r_cfg;
+	struct rtnexthop *rtnh;
+	int remaining;
+	int attrlen;
+	int err = 0, last_err = 0;
+
+beginning:
+	rtnh = (struct rtnexthop *)cfg->fc_mp;
+	remaining = cfg->fc_mp_len;
+
+	/* Parse a Multipath Entry */
+	while (rtnh_ok(rtnh, remaining)) {
+		memcpy(&r_cfg, cfg, sizeof(*cfg));
+		if (rtnh->rtnh_ifindex)
+			r_cfg.fc_ifindex = rtnh->rtnh_ifindex;
+
+		attrlen = rtnh_attrlen(rtnh);
+		if (attrlen > 0) {
+			struct nlattr *nla, *attrs = rtnh_attrs(rtnh);
+
+			nla = nla_find(attrs, attrlen, RTA_GATEWAY);
+			if (nla) {
+				nla_memcpy(&r_cfg.fc_gateway, nla, 16);
+				r_cfg.fc_flags |= RTF_GATEWAY;
+			}
+		}
+		err = add ? ip6_route_add(&r_cfg) : ip6_route_del(&r_cfg);
+		if (err) {
+			last_err = err;
+			/* If we are trying to remove a route, do not stop the
+			 * loop when ip6_route_del() fails (because next hop is
+			 * already gone), we should try to remove all next hops.
+			 */
+			if (add) {
+				/* If add fails, we should try to delete all
+				 * next hops that have been already added.
+				 */
+				add = 0;
+				goto beginning;
+			}
+		}
+		/* Because each route is added like a single route we remove
+		 * this flag after the first nexthop (if there is a collision,
+		 * we have already fail to add the first nexthop:
+		 * fib6_add_rt2node() has reject it).
+		 */
+		cfg->fc_nlinfo.nlh->nlmsg_flags &= ~NLM_F_EXCL;
+		rtnh = rtnh_next(rtnh, &remaining);
+	}
+
+	return last_err;
+}
+
 static int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 {
 	struct fib6_config cfg;
@@ -2340,7 +2446,10 @@ static int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *a
 	if (err < 0)
 		return err;
 
-	return ip6_route_del(&cfg);
+	if (cfg.fc_mp)
+		return ip6_route_multipath(&cfg, 0);
+	else
+		return ip6_route_del(&cfg);
 }
 
 static int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
@@ -2352,7 +2461,10 @@ static int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *a
 	if (err < 0)
 		return err;
 
-	return ip6_route_add(&cfg);
+	if (cfg.fc_mp)
+		return ip6_route_multipath(&cfg, 1);
+	else
+		return ip6_route_add(&cfg);
 }
 
 static inline size_t rt6_nlmsg_size(void)
@@ -2596,7 +2708,7 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
 
 	skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
 	if (!skb) {
-		dst_release(&rt->dst);
+		ip6_rt_put(rt);
 		err = -ENOBUFS;
 		goto errout;
 	}
@@ -2873,6 +2985,10 @@ struct ctl_table * __net_init ipv6_route_sysctl_init(struct net *net)
 		table[7].data = &net->ipv6.sysctl.ip6_rt_mtu_expires;
 		table[8].data = &net->ipv6.sysctl.ip6_rt_min_advmss;
 		table[9].data = &net->ipv6.sysctl.ip6_rt_gc_min_interval;
+
+		/* Don't export sysctls to unprivileged users */
+		if (net->user_ns != &init_user_ns)
+			table[0].procname = NULL;
 	}
 
 	return table;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 3ed54ff..cfba99b 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -65,9 +65,14 @@
 #define HASH_SIZE  16
 #define HASH(addr) (((__force u32)addr^((__force u32)addr>>4))&0xF)
 
+static bool log_ecn_error = true;
+module_param(log_ecn_error, bool, 0644);
+MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
+
 static int ipip6_tunnel_init(struct net_device *dev);
 static void ipip6_tunnel_setup(struct net_device *dev);
 static void ipip6_dev_free(struct net_device *dev);
+static struct rtnl_link_ops sit_link_ops __read_mostly;
 
 static int sit_net_id __read_mostly;
 struct sit_net {
@@ -80,22 +85,6 @@ struct sit_net {
 	struct net_device *fb_tunnel_dev;
 };
 
-/*
- * Locking : hash tables are protected by RCU and RTNL
- */
-
-#define for_each_ip_tunnel_rcu(start) \
-	for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
-
-/* often modified stats are per cpu, other are shared (netdev->stats) */
-struct pcpu_tstats {
-	u64	rx_packets;
-	u64	rx_bytes;
-	u64	tx_packets;
-	u64	tx_bytes;
-	struct u64_stats_sync	syncp;
-};
-
 static struct rtnl_link_stats64 *ipip6_get_stats64(struct net_device *dev,
 						   struct rtnl_link_stats64 *tot)
 {
@@ -121,6 +110,7 @@ static struct rtnl_link_stats64 *ipip6_get_stats64(struct net_device *dev,
 	}
 
 	tot->rx_errors = dev->stats.rx_errors;
+	tot->rx_frame_errors = dev->stats.rx_frame_errors;
 	tot->tx_fifo_errors = dev->stats.tx_fifo_errors;
 	tot->tx_carrier_errors = dev->stats.tx_carrier_errors;
 	tot->tx_dropped = dev->stats.tx_dropped;
@@ -141,20 +131,20 @@ static struct ip_tunnel *ipip6_tunnel_lookup(struct net *net,
 	struct ip_tunnel *t;
 	struct sit_net *sitn = net_generic(net, sit_net_id);
 
-	for_each_ip_tunnel_rcu(sitn->tunnels_r_l[h0 ^ h1]) {
+	for_each_ip_tunnel_rcu(t, sitn->tunnels_r_l[h0 ^ h1]) {
 		if (local == t->parms.iph.saddr &&
 		    remote == t->parms.iph.daddr &&
 		    (!dev || !t->parms.link || dev->iflink == t->parms.link) &&
 		    (t->dev->flags & IFF_UP))
 			return t;
 	}
-	for_each_ip_tunnel_rcu(sitn->tunnels_r[h0]) {
+	for_each_ip_tunnel_rcu(t, sitn->tunnels_r[h0]) {
 		if (remote == t->parms.iph.daddr &&
 		    (!dev || !t->parms.link || dev->iflink == t->parms.link) &&
 		    (t->dev->flags & IFF_UP))
 			return t;
 	}
-	for_each_ip_tunnel_rcu(sitn->tunnels_l[h1]) {
+	for_each_ip_tunnel_rcu(t, sitn->tunnels_l[h1]) {
 		if (local == t->parms.iph.saddr &&
 		    (!dev || !t->parms.link || dev->iflink == t->parms.link) &&
 		    (t->dev->flags & IFF_UP))
@@ -231,6 +221,37 @@ static void ipip6_tunnel_clone_6rd(struct net_device *dev, struct sit_net *sitn)
 #endif
 }
 
+static int ipip6_tunnel_create(struct net_device *dev)
+{
+	struct ip_tunnel *t = netdev_priv(dev);
+	struct net *net = dev_net(dev);
+	struct sit_net *sitn = net_generic(net, sit_net_id);
+	int err;
+
+	err = ipip6_tunnel_init(dev);
+	if (err < 0)
+		goto out;
+	ipip6_tunnel_clone_6rd(dev, sitn);
+
+	if ((__force u16)t->parms.i_flags & SIT_ISATAP)
+		dev->priv_flags |= IFF_ISATAP;
+
+	err = register_netdevice(dev);
+	if (err < 0)
+		goto out;
+
+	strcpy(t->parms.name, dev->name);
+	dev->rtnl_link_ops = &sit_link_ops;
+
+	dev_hold(dev);
+
+	ipip6_tunnel_link(sitn, t);
+	return 0;
+
+out:
+	return err;
+}
+
 static struct ip_tunnel *ipip6_tunnel_locate(struct net *net,
 		struct ip_tunnel_parm *parms, int create)
 {
@@ -271,21 +292,9 @@ static struct ip_tunnel *ipip6_tunnel_locate(struct net *net,
 	nt = netdev_priv(dev);
 
 	nt->parms = *parms;
-	if (ipip6_tunnel_init(dev) < 0)
+	if (ipip6_tunnel_create(dev) < 0)
 		goto failed_free;
-	ipip6_tunnel_clone_6rd(dev, sitn);
 
-	if (parms->i_flags & SIT_ISATAP)
-		dev->priv_flags |= IFF_ISATAP;
-
-	if (register_netdevice(dev) < 0)
-		goto failed_free;
-
-	strcpy(nt->parms.name, dev->name);
-
-	dev_hold(dev);
-
-	ipip6_tunnel_link(sitn, nt);
 	return nt;
 
 failed_free:
@@ -581,16 +590,11 @@ out:
 	return err;
 }
 
-static inline void ipip6_ecn_decapsulate(const struct iphdr *iph, struct sk_buff *skb)
-{
-	if (INET_ECN_is_ce(iph->tos))
-		IP6_ECN_set_ce(ipv6_hdr(skb));
-}
-
 static int ipip6_rcv(struct sk_buff *skb)
 {
 	const struct iphdr *iph;
 	struct ip_tunnel *tunnel;
+	int err;
 
 	if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
 		goto out;
@@ -612,18 +616,27 @@ static int ipip6_rcv(struct sk_buff *skb)
 		if ((tunnel->dev->priv_flags & IFF_ISATAP) &&
 		    !isatap_chksrc(skb, iph, tunnel)) {
 			tunnel->dev->stats.rx_errors++;
-			kfree_skb(skb);
-			return 0;
+			goto out;
+		}
+
+		__skb_tunnel_rx(skb, tunnel->dev);
+
+		err = IP_ECN_decapsulate(iph, skb);
+		if (unlikely(err)) {
+			if (log_ecn_error)
+				net_info_ratelimited("non-ECT from %pI4 with TOS=%#x\n",
+						     &iph->saddr, iph->tos);
+			if (err > 1) {
+				++tunnel->dev->stats.rx_frame_errors;
+				++tunnel->dev->stats.rx_errors;
+				goto out;
+			}
 		}
 
 		tstats = this_cpu_ptr(tunnel->dev->tstats);
 		tstats->rx_packets++;
 		tstats->rx_bytes += skb->len;
 
-		__skb_tunnel_rx(skb, tunnel->dev);
-
-		ipip6_ecn_decapsulate(iph, skb);
-
 		netif_rx(skb);
 
 		return 0;
@@ -683,7 +696,6 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
 				     struct net_device *dev)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
-	struct pcpu_tstats *tstats;
 	const struct iphdr  *tiph = &tunnel->parms.iph;
 	const struct ipv6hdr *iph6 = ipv6_hdr(skb);
 	u8     tos = tunnel->parms.iph.tos;
@@ -864,9 +876,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
 	if ((iph->ttl = tiph->ttl) == 0)
 		iph->ttl	=	iph6->hop_limit;
 
-	nf_reset(skb);
-	tstats = this_cpu_ptr(dev->tstats);
-	__IPTUNNEL_XMIT(tstats, &dev->stats);
+	iptunnel_xmit(skb, dev);
 	return NETDEV_TX_OK;
 
 tx_error_icmp:
@@ -914,6 +924,59 @@ static void ipip6_tunnel_bind_dev(struct net_device *dev)
 	dev->iflink = tunnel->parms.link;
 }
 
+static void ipip6_tunnel_update(struct ip_tunnel *t, struct ip_tunnel_parm *p)
+{
+	struct net *net = dev_net(t->dev);
+	struct sit_net *sitn = net_generic(net, sit_net_id);
+
+	ipip6_tunnel_unlink(sitn, t);
+	synchronize_net();
+	t->parms.iph.saddr = p->iph.saddr;
+	t->parms.iph.daddr = p->iph.daddr;
+	memcpy(t->dev->dev_addr, &p->iph.saddr, 4);
+	memcpy(t->dev->broadcast, &p->iph.daddr, 4);
+	ipip6_tunnel_link(sitn, t);
+	t->parms.iph.ttl = p->iph.ttl;
+	t->parms.iph.tos = p->iph.tos;
+	if (t->parms.link != p->link) {
+		t->parms.link = p->link;
+		ipip6_tunnel_bind_dev(t->dev);
+	}
+	netdev_state_change(t->dev);
+}
+
+#ifdef CONFIG_IPV6_SIT_6RD
+static int ipip6_tunnel_update_6rd(struct ip_tunnel *t,
+				   struct ip_tunnel_6rd *ip6rd)
+{
+	struct in6_addr prefix;
+	__be32 relay_prefix;
+
+	if (ip6rd->relay_prefixlen > 32 ||
+	    ip6rd->prefixlen + (32 - ip6rd->relay_prefixlen) > 64)
+		return -EINVAL;
+
+	ipv6_addr_prefix(&prefix, &ip6rd->prefix, ip6rd->prefixlen);
+	if (!ipv6_addr_equal(&prefix, &ip6rd->prefix))
+		return -EINVAL;
+	if (ip6rd->relay_prefixlen)
+		relay_prefix = ip6rd->relay_prefix &
+			       htonl(0xffffffffUL <<
+				     (32 - ip6rd->relay_prefixlen));
+	else
+		relay_prefix = 0;
+	if (relay_prefix != ip6rd->relay_prefix)
+		return -EINVAL;
+
+	t->ip6rd.prefix = prefix;
+	t->ip6rd.relay_prefix = relay_prefix;
+	t->ip6rd.prefixlen = ip6rd->prefixlen;
+	t->ip6rd.relay_prefixlen = ip6rd->relay_prefixlen;
+	netdev_state_change(t->dev);
+	return 0;
+}
+#endif
+
 static int
 ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 {
@@ -966,7 +1029,7 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 	case SIOCADDTUNNEL:
 	case SIOCCHGTUNNEL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto done;
 
 		err = -EFAULT;
@@ -995,28 +1058,13 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 					break;
 				}
 				t = netdev_priv(dev);
-				ipip6_tunnel_unlink(sitn, t);
-				synchronize_net();
-				t->parms.iph.saddr = p.iph.saddr;
-				t->parms.iph.daddr = p.iph.daddr;
-				memcpy(dev->dev_addr, &p.iph.saddr, 4);
-				memcpy(dev->broadcast, &p.iph.daddr, 4);
-				ipip6_tunnel_link(sitn, t);
-				netdev_state_change(dev);
 			}
+
+			ipip6_tunnel_update(t, &p);
 		}
 
 		if (t) {
 			err = 0;
-			if (cmd == SIOCCHGTUNNEL) {
-				t->parms.iph.ttl = p.iph.ttl;
-				t->parms.iph.tos = p.iph.tos;
-				if (t->parms.link != p.link) {
-					t->parms.link = p.link;
-					ipip6_tunnel_bind_dev(dev);
-					netdev_state_change(dev);
-				}
-			}
 			if (copy_to_user(ifr->ifr_ifru.ifru_data, &t->parms, sizeof(p)))
 				err = -EFAULT;
 		} else
@@ -1025,7 +1073,7 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 
 	case SIOCDELTUNNEL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto done;
 
 		if (dev == sitn->fb_tunnel_dev) {
@@ -1058,7 +1106,7 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 	case SIOCDELPRL:
 	case SIOCCHGPRL:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto done;
 		err = -EINVAL;
 		if (dev == sitn->fb_tunnel_dev)
@@ -1087,7 +1135,7 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 	case SIOCCHG6RD:
 	case SIOCDEL6RD:
 		err = -EPERM;
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			goto done;
 
 		err = -EFAULT;
@@ -1098,31 +1146,9 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 		t = netdev_priv(dev);
 
 		if (cmd != SIOCDEL6RD) {
-			struct in6_addr prefix;
-			__be32 relay_prefix;
-
-			err = -EINVAL;
-			if (ip6rd.relay_prefixlen > 32 ||
-			    ip6rd.prefixlen + (32 - ip6rd.relay_prefixlen) > 64)
-				goto done;
-
-			ipv6_addr_prefix(&prefix, &ip6rd.prefix,
-					 ip6rd.prefixlen);
-			if (!ipv6_addr_equal(&prefix, &ip6rd.prefix))
-				goto done;
-			if (ip6rd.relay_prefixlen)
-				relay_prefix = ip6rd.relay_prefix &
-					       htonl(0xffffffffUL <<
-						     (32 - ip6rd.relay_prefixlen));
-			else
-				relay_prefix = 0;
-			if (relay_prefix != ip6rd.relay_prefix)
+			err = ipip6_tunnel_update_6rd(t, &ip6rd);
+			if (err < 0)
 				goto done;
-
-			t->ip6rd.prefix = prefix;
-			t->ip6rd.relay_prefix = relay_prefix;
-			t->ip6rd.prefixlen = ip6rd.prefixlen;
-			t->ip6rd.relay_prefixlen = ip6rd.relay_prefixlen;
 		} else
 			ipip6_tunnel_clone_6rd(dev, sitn);
 
@@ -1216,6 +1242,239 @@ static int __net_init ipip6_fb_tunnel_init(struct net_device *dev)
 	return 0;
 }
 
+static void ipip6_netlink_parms(struct nlattr *data[],
+				struct ip_tunnel_parm *parms)
+{
+	memset(parms, 0, sizeof(*parms));
+
+	parms->iph.version = 4;
+	parms->iph.protocol = IPPROTO_IPV6;
+	parms->iph.ihl = 5;
+	parms->iph.ttl = 64;
+
+	if (!data)
+		return;
+
+	if (data[IFLA_IPTUN_LINK])
+		parms->link = nla_get_u32(data[IFLA_IPTUN_LINK]);
+
+	if (data[IFLA_IPTUN_LOCAL])
+		parms->iph.saddr = nla_get_be32(data[IFLA_IPTUN_LOCAL]);
+
+	if (data[IFLA_IPTUN_REMOTE])
+		parms->iph.daddr = nla_get_be32(data[IFLA_IPTUN_REMOTE]);
+
+	if (data[IFLA_IPTUN_TTL]) {
+		parms->iph.ttl = nla_get_u8(data[IFLA_IPTUN_TTL]);
+		if (parms->iph.ttl)
+			parms->iph.frag_off = htons(IP_DF);
+	}
+
+	if (data[IFLA_IPTUN_TOS])
+		parms->iph.tos = nla_get_u8(data[IFLA_IPTUN_TOS]);
+
+	if (!data[IFLA_IPTUN_PMTUDISC] || nla_get_u8(data[IFLA_IPTUN_PMTUDISC]))
+		parms->iph.frag_off = htons(IP_DF);
+
+	if (data[IFLA_IPTUN_FLAGS])
+		parms->i_flags = nla_get_be16(data[IFLA_IPTUN_FLAGS]);
+}
+
+#ifdef CONFIG_IPV6_SIT_6RD
+/* This function returns true when 6RD attributes are present in the nl msg */
+static bool ipip6_netlink_6rd_parms(struct nlattr *data[],
+				    struct ip_tunnel_6rd *ip6rd)
+{
+	bool ret = false;
+	memset(ip6rd, 0, sizeof(*ip6rd));
+
+	if (!data)
+		return ret;
+
+	if (data[IFLA_IPTUN_6RD_PREFIX]) {
+		ret = true;
+		nla_memcpy(&ip6rd->prefix, data[IFLA_IPTUN_6RD_PREFIX],
+			   sizeof(struct in6_addr));
+	}
+
+	if (data[IFLA_IPTUN_6RD_RELAY_PREFIX]) {
+		ret = true;
+		ip6rd->relay_prefix =
+			nla_get_be32(data[IFLA_IPTUN_6RD_RELAY_PREFIX]);
+	}
+
+	if (data[IFLA_IPTUN_6RD_PREFIXLEN]) {
+		ret = true;
+		ip6rd->prefixlen = nla_get_u16(data[IFLA_IPTUN_6RD_PREFIXLEN]);
+	}
+
+	if (data[IFLA_IPTUN_6RD_RELAY_PREFIXLEN]) {
+		ret = true;
+		ip6rd->relay_prefixlen =
+			nla_get_u16(data[IFLA_IPTUN_6RD_RELAY_PREFIXLEN]);
+	}
+
+	return ret;
+}
+#endif
+
+static int ipip6_newlink(struct net *src_net, struct net_device *dev,
+			 struct nlattr *tb[], struct nlattr *data[])
+{
+	struct net *net = dev_net(dev);
+	struct ip_tunnel *nt;
+#ifdef CONFIG_IPV6_SIT_6RD
+	struct ip_tunnel_6rd ip6rd;
+#endif
+	int err;
+
+	nt = netdev_priv(dev);
+	ipip6_netlink_parms(data, &nt->parms);
+
+	if (ipip6_tunnel_locate(net, &nt->parms, 0))
+		return -EEXIST;
+
+	err = ipip6_tunnel_create(dev);
+	if (err < 0)
+		return err;
+
+#ifdef CONFIG_IPV6_SIT_6RD
+	if (ipip6_netlink_6rd_parms(data, &ip6rd))
+		err = ipip6_tunnel_update_6rd(nt, &ip6rd);
+#endif
+
+	return err;
+}
+
+static int ipip6_changelink(struct net_device *dev, struct nlattr *tb[],
+			  struct nlattr *data[])
+{
+	struct ip_tunnel *t;
+	struct ip_tunnel_parm p;
+	struct net *net = dev_net(dev);
+	struct sit_net *sitn = net_generic(net, sit_net_id);
+#ifdef CONFIG_IPV6_SIT_6RD
+	struct ip_tunnel_6rd ip6rd;
+#endif
+
+	if (dev == sitn->fb_tunnel_dev)
+		return -EINVAL;
+
+	ipip6_netlink_parms(data, &p);
+
+	if (((dev->flags & IFF_POINTOPOINT) && !p.iph.daddr) ||
+	    (!(dev->flags & IFF_POINTOPOINT) && p.iph.daddr))
+		return -EINVAL;
+
+	t = ipip6_tunnel_locate(net, &p, 0);
+
+	if (t) {
+		if (t->dev != dev)
+			return -EEXIST;
+	} else
+		t = netdev_priv(dev);
+
+	ipip6_tunnel_update(t, &p);
+
+#ifdef CONFIG_IPV6_SIT_6RD
+	if (ipip6_netlink_6rd_parms(data, &ip6rd))
+		return ipip6_tunnel_update_6rd(t, &ip6rd);
+#endif
+
+	return 0;
+}
+
+static size_t ipip6_get_size(const struct net_device *dev)
+{
+	return
+		/* IFLA_IPTUN_LINK */
+		nla_total_size(4) +
+		/* IFLA_IPTUN_LOCAL */
+		nla_total_size(4) +
+		/* IFLA_IPTUN_REMOTE */
+		nla_total_size(4) +
+		/* IFLA_IPTUN_TTL */
+		nla_total_size(1) +
+		/* IFLA_IPTUN_TOS */
+		nla_total_size(1) +
+		/* IFLA_IPTUN_PMTUDISC */
+		nla_total_size(1) +
+		/* IFLA_IPTUN_FLAGS */
+		nla_total_size(2) +
+#ifdef CONFIG_IPV6_SIT_6RD
+		/* IFLA_IPTUN_6RD_PREFIX */
+		nla_total_size(sizeof(struct in6_addr)) +
+		/* IFLA_IPTUN_6RD_RELAY_PREFIX */
+		nla_total_size(4) +
+		/* IFLA_IPTUN_6RD_PREFIXLEN */
+		nla_total_size(2) +
+		/* IFLA_IPTUN_6RD_RELAY_PREFIXLEN */
+		nla_total_size(2) +
+#endif
+		0;
+}
+
+static int ipip6_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+	struct ip_tunnel *tunnel = netdev_priv(dev);
+	struct ip_tunnel_parm *parm = &tunnel->parms;
+
+	if (nla_put_u32(skb, IFLA_IPTUN_LINK, parm->link) ||
+	    nla_put_be32(skb, IFLA_IPTUN_LOCAL, parm->iph.saddr) ||
+	    nla_put_be32(skb, IFLA_IPTUN_REMOTE, parm->iph.daddr) ||
+	    nla_put_u8(skb, IFLA_IPTUN_TTL, parm->iph.ttl) ||
+	    nla_put_u8(skb, IFLA_IPTUN_TOS, parm->iph.tos) ||
+	    nla_put_u8(skb, IFLA_IPTUN_PMTUDISC,
+		       !!(parm->iph.frag_off & htons(IP_DF))) ||
+	    nla_put_be16(skb, IFLA_IPTUN_FLAGS, parm->i_flags))
+		goto nla_put_failure;
+
+#ifdef CONFIG_IPV6_SIT_6RD
+	if (nla_put(skb, IFLA_IPTUN_6RD_PREFIX, sizeof(struct in6_addr),
+		    &tunnel->ip6rd.prefix) ||
+	    nla_put_be32(skb, IFLA_IPTUN_6RD_RELAY_PREFIX,
+			 tunnel->ip6rd.relay_prefix) ||
+	    nla_put_u16(skb, IFLA_IPTUN_6RD_PREFIXLEN,
+			tunnel->ip6rd.prefixlen) ||
+	    nla_put_u16(skb, IFLA_IPTUN_6RD_RELAY_PREFIXLEN,
+			tunnel->ip6rd.relay_prefixlen))
+		goto nla_put_failure;
+#endif
+
+	return 0;
+
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
+static const struct nla_policy ipip6_policy[IFLA_IPTUN_MAX + 1] = {
+	[IFLA_IPTUN_LINK]		= { .type = NLA_U32 },
+	[IFLA_IPTUN_LOCAL]		= { .type = NLA_U32 },
+	[IFLA_IPTUN_REMOTE]		= { .type = NLA_U32 },
+	[IFLA_IPTUN_TTL]		= { .type = NLA_U8 },
+	[IFLA_IPTUN_TOS]		= { .type = NLA_U8 },
+	[IFLA_IPTUN_PMTUDISC]		= { .type = NLA_U8 },
+	[IFLA_IPTUN_FLAGS]		= { .type = NLA_U16 },
+#ifdef CONFIG_IPV6_SIT_6RD
+	[IFLA_IPTUN_6RD_PREFIX]		= { .len = sizeof(struct in6_addr) },
+	[IFLA_IPTUN_6RD_RELAY_PREFIX]	= { .type = NLA_U32 },
+	[IFLA_IPTUN_6RD_PREFIXLEN]	= { .type = NLA_U16 },
+	[IFLA_IPTUN_6RD_RELAY_PREFIXLEN] = { .type = NLA_U16 },
+#endif
+};
+
+static struct rtnl_link_ops sit_link_ops __read_mostly = {
+	.kind		= "sit",
+	.maxtype	= IFLA_IPTUN_MAX,
+	.policy		= ipip6_policy,
+	.priv_size	= sizeof(struct ip_tunnel),
+	.setup		= ipip6_tunnel_setup,
+	.newlink	= ipip6_newlink,
+	.changelink	= ipip6_changelink,
+	.get_size	= ipip6_get_size,
+	.fill_info	= ipip6_fill_info,
+};
+
 static struct xfrm_tunnel sit_handler __read_mostly = {
 	.handler	=	ipip6_rcv,
 	.err_handler	=	ipip6_err,
@@ -1302,6 +1561,7 @@ static struct pernet_operations sit_net_ops = {
 
 static void __exit sit_cleanup(void)
 {
+	rtnl_link_unregister(&sit_link_ops);
 	xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
 
 	unregister_pernet_device(&sit_net_ops);
@@ -1319,10 +1579,21 @@ static int __init sit_init(void)
 		return err;
 	err = xfrm4_tunnel_register(&sit_handler, AF_INET6);
 	if (err < 0) {
-		unregister_pernet_device(&sit_net_ops);
 		pr_info("%s: can't add protocol\n", __func__);
+		goto xfrm_tunnel_failed;
 	}
+	err = rtnl_link_register(&sit_link_ops);
+	if (err < 0)
+		goto rtnl_link_failed;
+
+out:
 	return err;
+
+rtnl_link_failed:
+	xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
+xfrm_tunnel_failed:
+	unregister_pernet_device(&sit_net_ops);
+	goto out;
 }
 
 module_init(sit_init);
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 182ab9a..4016197 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -214,7 +214,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
 		ireq6->iif = inet6_iif(skb);
 
 	req->expires = 0UL;
-	req->retrans = 0;
+	req->num_retrans = 0;
 	ireq->ecn_ok		= ecn_ok;
 	ireq->snd_wscale	= tcp_opt.snd_wscale;
 	ireq->sack_ok		= tcp_opt.sack_ok;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 26175bf..6565cf5 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -77,9 +77,6 @@ static void	tcp_v6_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
 				      struct request_sock *req);
 
 static int	tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb);
-static void	__tcp_v6_send_check(struct sk_buff *skb,
-				    const struct in6_addr *saddr,
-				    const struct in6_addr *daddr);
 
 static const struct inet_connection_sock_af_ops ipv6_mapped;
 static const struct inet_connection_sock_af_ops ipv6_specific;
@@ -119,14 +116,6 @@ static void tcp_v6_hash(struct sock *sk)
 	}
 }
 
-static __inline__ __sum16 tcp_v6_check(int len,
-				   const struct in6_addr *saddr,
-				   const struct in6_addr *daddr,
-				   __wsum base)
-{
-	return csum_ipv6_magic(saddr, daddr, len, IPPROTO_TCP, base);
-}
-
 static __u32 tcp_v6_init_sequence(const struct sk_buff *skb)
 {
 	return secure_tcpv6_sequence_number(ipv6_hdr(skb)->daddr.s6_addr32,
@@ -306,7 +295,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 	if (err)
 		goto late_failure;
 
-	if (!tp->write_seq)
+	if (!tp->write_seq && likely(!tp->repair))
 		tp->write_seq = secure_tcpv6_sequence_number(np->saddr.s6_addr32,
 							     np->daddr.s6_addr32,
 							     inet->inet_sport,
@@ -495,9 +484,12 @@ static int tcp_v6_rtx_synack(struct sock *sk, struct request_sock *req,
 			     struct request_values *rvp)
 {
 	struct flowi6 fl6;
+	int res;
 
-	TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_RETRANSSEGS);
-	return tcp_v6_send_synack(sk, NULL, &fl6, req, rvp, 0);
+	res = tcp_v6_send_synack(sk, NULL, &fl6, req, rvp, 0);
+	if (!res)
+		TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_RETRANSSEGS);
+	return res;
 }
 
 static void tcp_v6_reqsk_destructor(struct request_sock *req)
@@ -719,94 +711,6 @@ static const struct tcp_request_sock_ops tcp_request_sock_ipv6_ops = {
 };
 #endif
 
-static void __tcp_v6_send_check(struct sk_buff *skb,
-				const struct in6_addr *saddr, const struct in6_addr *daddr)
-{
-	struct tcphdr *th = tcp_hdr(skb);
-
-	if (skb->ip_summed == CHECKSUM_PARTIAL) {
-		th->check = ~tcp_v6_check(skb->len, saddr, daddr, 0);
-		skb->csum_start = skb_transport_header(skb) - skb->head;
-		skb->csum_offset = offsetof(struct tcphdr, check);
-	} else {
-		th->check = tcp_v6_check(skb->len, saddr, daddr,
-					 csum_partial(th, th->doff << 2,
-						      skb->csum));
-	}
-}
-
-static void tcp_v6_send_check(struct sock *sk, struct sk_buff *skb)
-{
-	struct ipv6_pinfo *np = inet6_sk(sk);
-
-	__tcp_v6_send_check(skb, &np->saddr, &np->daddr);
-}
-
-static int tcp_v6_gso_send_check(struct sk_buff *skb)
-{
-	const struct ipv6hdr *ipv6h;
-	struct tcphdr *th;
-
-	if (!pskb_may_pull(skb, sizeof(*th)))
-		return -EINVAL;
-
-	ipv6h = ipv6_hdr(skb);
-	th = tcp_hdr(skb);
-
-	th->check = 0;
-	skb->ip_summed = CHECKSUM_PARTIAL;
-	__tcp_v6_send_check(skb, &ipv6h->saddr, &ipv6h->daddr);
-	return 0;
-}
-
-static struct sk_buff **tcp6_gro_receive(struct sk_buff **head,
-					 struct sk_buff *skb)
-{
-	const struct ipv6hdr *iph = skb_gro_network_header(skb);
-	__wsum wsum;
-	__sum16 sum;
-
-	switch (skb->ip_summed) {
-	case CHECKSUM_COMPLETE:
-		if (!tcp_v6_check(skb_gro_len(skb), &iph->saddr, &iph->daddr,
-				  skb->csum)) {
-			skb->ip_summed = CHECKSUM_UNNECESSARY;
-			break;
-		}
-flush:
-		NAPI_GRO_CB(skb)->flush = 1;
-		return NULL;
-
-	case CHECKSUM_NONE:
-		wsum = ~csum_unfold(csum_ipv6_magic(&iph->saddr, &iph->daddr,
-						    skb_gro_len(skb),
-						    IPPROTO_TCP, 0));
-		sum = csum_fold(skb_checksum(skb,
-					     skb_gro_offset(skb),
-					     skb_gro_len(skb),
-					     wsum));
-		if (sum)
-			goto flush;
-
-		skb->ip_summed = CHECKSUM_UNNECESSARY;
-		break;
-	}
-
-	return tcp_gro_receive(head, skb);
-}
-
-static int tcp6_gro_complete(struct sk_buff *skb)
-{
-	const struct ipv6hdr *iph = ipv6_hdr(skb);
-	struct tcphdr *th = tcp_hdr(skb);
-
-	th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb),
-				  &iph->saddr, &iph->daddr, 0);
-	skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6;
-
-	return tcp_gro_complete(skb);
-}
-
 static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
 				 u32 ts, struct tcp_md5sig_key *key, int rst, u8 tclass)
 {
@@ -1364,7 +1268,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
 	tcp_initialize_rcv_mss(newsk);
 	tcp_synack_rtt_meas(newsk, req);
-	newtp->total_retrans = req->retrans;
+	newtp->total_retrans = req->num_retrans;
 
 	newinet->inet_daddr = newinet->inet_saddr = LOOPBACK4_IPV6;
 	newinet->inet_rcv_saddr = LOOPBACK4_IPV6;
@@ -1741,11 +1645,11 @@ static void tcp_v6_early_demux(struct sk_buff *skb)
 		skb->destructor = sock_edemux;
 		if (sk->sk_state != TCP_TIME_WAIT) {
 			struct dst_entry *dst = sk->sk_rx_dst;
-			struct inet_sock *icsk = inet_sk(sk);
+
 			if (dst)
 				dst = dst_check(dst, inet6_sk(sk)->rx_dst_cookie);
 			if (dst &&
-			    icsk->rx_dst_ifindex == skb->skb_iif)
+			    inet_sk(sk)->rx_dst_ifindex == skb->skb_iif)
 				skb_dst_set_noref(skb, dst);
 		}
 	}
@@ -1866,7 +1770,7 @@ static void get_openreq6(struct seq_file *seq,
 		   0,0, /* could print option size, but that is af dependent. */
 		   1,   /* timers active (only the expire timer) */
 		   jiffies_to_clock_t(ttd),
-		   req->retrans,
+		   req->num_timeout,
 		   from_kuid_munged(seq_user_ns(seq), uid),
 		   0,  /* non standard timer */
 		   0, /* open_requests have no inode */
@@ -2063,10 +1967,6 @@ static const struct inet6_protocol tcpv6_protocol = {
 	.early_demux	=	tcp_v6_early_demux,
 	.handler	=	tcp_v6_rcv,
 	.err_handler	=	tcp_v6_err,
-	.gso_send_check	=	tcp_v6_gso_send_check,
-	.gso_segment	=	tcp_tso_segment,
-	.gro_receive	=	tcp6_gro_receive,
-	.gro_complete	=	tcp6_gro_complete,
 	.flags		=	INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
 };
 
@@ -2121,10 +2021,10 @@ int __init tcpv6_init(void)
 out:
 	return ret;
 
-out_tcpv6_protocol:
-	inet6_del_protocol(&tcpv6_protocol, IPPROTO_TCP);
 out_tcpv6_protosw:
 	inet6_unregister_protosw(&tcpv6_protosw);
+out_tcpv6_protocol:
+	inet6_del_protocol(&tcpv6_protocol, IPPROTO_TCP);
 	goto out;
 }
 
diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c
new file mode 100644
index 0000000..2ec6bf6
--- /dev/null
+++ b/net/ipv6/tcpv6_offload.c
@@ -0,0 +1,95 @@
+/*
+ *	IPV6 GSO/GRO offload support
+ *	Linux INET6 implementation
+ *
+ *	This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ *      TCPv6 GSO/GRO support
+ */
+#include <linux/skbuff.h>
+#include <net/protocol.h>
+#include <net/tcp.h>
+#include <net/ip6_checksum.h>
+#include "ip6_offload.h"
+
+static int tcp_v6_gso_send_check(struct sk_buff *skb)
+{
+	const struct ipv6hdr *ipv6h;
+	struct tcphdr *th;
+
+	if (!pskb_may_pull(skb, sizeof(*th)))
+		return -EINVAL;
+
+	ipv6h = ipv6_hdr(skb);
+	th = tcp_hdr(skb);
+
+	th->check = 0;
+	skb->ip_summed = CHECKSUM_PARTIAL;
+	__tcp_v6_send_check(skb, &ipv6h->saddr, &ipv6h->daddr);
+	return 0;
+}
+
+static struct sk_buff **tcp6_gro_receive(struct sk_buff **head,
+					 struct sk_buff *skb)
+{
+	const struct ipv6hdr *iph = skb_gro_network_header(skb);
+	__wsum wsum;
+	__sum16 sum;
+
+	switch (skb->ip_summed) {
+	case CHECKSUM_COMPLETE:
+		if (!tcp_v6_check(skb_gro_len(skb), &iph->saddr, &iph->daddr,
+				  skb->csum)) {
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+			break;
+		}
+flush:
+		NAPI_GRO_CB(skb)->flush = 1;
+		return NULL;
+
+	case CHECKSUM_NONE:
+		wsum = ~csum_unfold(csum_ipv6_magic(&iph->saddr, &iph->daddr,
+						    skb_gro_len(skb),
+						    IPPROTO_TCP, 0));
+		sum = csum_fold(skb_checksum(skb,
+					     skb_gro_offset(skb),
+					     skb_gro_len(skb),
+					     wsum));
+		if (sum)
+			goto flush;
+
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+		break;
+	}
+
+	return tcp_gro_receive(head, skb);
+}
+
+static int tcp6_gro_complete(struct sk_buff *skb)
+{
+	const struct ipv6hdr *iph = ipv6_hdr(skb);
+	struct tcphdr *th = tcp_hdr(skb);
+
+	th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb),
+				  &iph->saddr, &iph->daddr, 0);
+	skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6;
+
+	return tcp_gro_complete(skb);
+}
+
+static const struct net_offload tcpv6_offload = {
+	.callbacks = {
+		.gso_send_check	=	tcp_v6_gso_send_check,
+		.gso_segment	=	tcp_tso_segment,
+		.gro_receive	=	tcp6_gro_receive,
+		.gro_complete	=	tcp6_gro_complete,
+	},
+};
+
+int __init tcpv6_offload_init(void)
+{
+	return inet6_add_offload(&tcpv6_offload, IPPROTO_TCP);
+}
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index fc99972..dfaa29b 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1343,103 +1343,9 @@ int compat_udpv6_getsockopt(struct sock *sk, int level, int optname,
 }
 #endif
 
-static int udp6_ufo_send_check(struct sk_buff *skb)
-{
-	const struct ipv6hdr *ipv6h;
-	struct udphdr *uh;
-
-	if (!pskb_may_pull(skb, sizeof(*uh)))
-		return -EINVAL;
-
-	ipv6h = ipv6_hdr(skb);
-	uh = udp_hdr(skb);
-
-	uh->check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, skb->len,
-				     IPPROTO_UDP, 0);
-	skb->csum_start = skb_transport_header(skb) - skb->head;
-	skb->csum_offset = offsetof(struct udphdr, check);
-	skb->ip_summed = CHECKSUM_PARTIAL;
-	return 0;
-}
-
-static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
-	netdev_features_t features)
-{
-	struct sk_buff *segs = ERR_PTR(-EINVAL);
-	unsigned int mss;
-	unsigned int unfrag_ip6hlen, unfrag_len;
-	struct frag_hdr *fptr;
-	u8 *mac_start, *prevhdr;
-	u8 nexthdr;
-	u8 frag_hdr_sz = sizeof(struct frag_hdr);
-	int offset;
-	__wsum csum;
-
-	mss = skb_shinfo(skb)->gso_size;
-	if (unlikely(skb->len <= mss))
-		goto out;
-
-	if (skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST)) {
-		/* Packet is from an untrusted source, reset gso_segs. */
-		int type = skb_shinfo(skb)->gso_type;
-
-		if (unlikely(type & ~(SKB_GSO_UDP | SKB_GSO_DODGY) ||
-			     !(type & (SKB_GSO_UDP))))
-			goto out;
-
-		skb_shinfo(skb)->gso_segs = DIV_ROUND_UP(skb->len, mss);
-
-		segs = NULL;
-		goto out;
-	}
-
-	/* Do software UFO. Complete and fill in the UDP checksum as HW cannot
-	 * do checksum of UDP packets sent as multiple IP fragments.
-	 */
-	offset = skb_checksum_start_offset(skb);
-	csum = skb_checksum(skb, offset, skb->len - offset, 0);
-	offset += skb->csum_offset;
-	*(__sum16 *)(skb->data + offset) = csum_fold(csum);
-	skb->ip_summed = CHECKSUM_NONE;
-
-	/* Check if there is enough headroom to insert fragment header. */
-	if ((skb_mac_header(skb) < skb->head + frag_hdr_sz) &&
-	    pskb_expand_head(skb, frag_hdr_sz, 0, GFP_ATOMIC))
-		goto out;
-
-	/* Find the unfragmentable header and shift it left by frag_hdr_sz
-	 * bytes to insert fragment header.
-	 */
-	unfrag_ip6hlen = ip6_find_1stfragopt(skb, &prevhdr);
-	nexthdr = *prevhdr;
-	*prevhdr = NEXTHDR_FRAGMENT;
-	unfrag_len = skb_network_header(skb) - skb_mac_header(skb) +
-		     unfrag_ip6hlen;
-	mac_start = skb_mac_header(skb);
-	memmove(mac_start-frag_hdr_sz, mac_start, unfrag_len);
-
-	skb->mac_header -= frag_hdr_sz;
-	skb->network_header -= frag_hdr_sz;
-
-	fptr = (struct frag_hdr *)(skb_network_header(skb) + unfrag_ip6hlen);
-	fptr->nexthdr = nexthdr;
-	fptr->reserved = 0;
-	ipv6_select_ident(fptr, (struct rt6_info *)skb_dst(skb));
-
-	/* Fragment the skb. ipv6 header and the remaining fields of the
-	 * fragment header are updated in ipv6_gso_segment()
-	 */
-	segs = skb_segment(skb, features);
-
-out:
-	return segs;
-}
-
 static const struct inet6_protocol udpv6_protocol = {
 	.handler	=	udpv6_rcv,
 	.err_handler	=	udpv6_err,
-	.gso_send_check =	udp6_ufo_send_check,
-	.gso_segment	=	udp6_ufo_fragment,
 	.flags		=	INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
 };
 
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
new file mode 100644
index 0000000..0c8934a
--- /dev/null
+++ b/net/ipv6/udp_offload.c
@@ -0,0 +1,120 @@
+/*
+ *	IPV6 GSO/GRO offload support
+ *	Linux INET6 implementation
+ *
+ *	This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ *      UDPv6 GSO support
+ */
+#include <linux/skbuff.h>
+#include <net/protocol.h>
+#include <net/ipv6.h>
+#include <net/udp.h>
+#include <net/ip6_checksum.h>
+#include "ip6_offload.h"
+
+static int udp6_ufo_send_check(struct sk_buff *skb)
+{
+	const struct ipv6hdr *ipv6h;
+	struct udphdr *uh;
+
+	if (!pskb_may_pull(skb, sizeof(*uh)))
+		return -EINVAL;
+
+	ipv6h = ipv6_hdr(skb);
+	uh = udp_hdr(skb);
+
+	uh->check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, skb->len,
+				     IPPROTO_UDP, 0);
+	skb->csum_start = skb_transport_header(skb) - skb->head;
+	skb->csum_offset = offsetof(struct udphdr, check);
+	skb->ip_summed = CHECKSUM_PARTIAL;
+	return 0;
+}
+
+static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
+	netdev_features_t features)
+{
+	struct sk_buff *segs = ERR_PTR(-EINVAL);
+	unsigned int mss;
+	unsigned int unfrag_ip6hlen, unfrag_len;
+	struct frag_hdr *fptr;
+	u8 *mac_start, *prevhdr;
+	u8 nexthdr;
+	u8 frag_hdr_sz = sizeof(struct frag_hdr);
+	int offset;
+	__wsum csum;
+
+	mss = skb_shinfo(skb)->gso_size;
+	if (unlikely(skb->len <= mss))
+		goto out;
+
+	if (skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST)) {
+		/* Packet is from an untrusted source, reset gso_segs. */
+		int type = skb_shinfo(skb)->gso_type;
+
+		if (unlikely(type & ~(SKB_GSO_UDP | SKB_GSO_DODGY) ||
+			     !(type & (SKB_GSO_UDP))))
+			goto out;
+
+		skb_shinfo(skb)->gso_segs = DIV_ROUND_UP(skb->len, mss);
+
+		segs = NULL;
+		goto out;
+	}
+
+	/* Do software UFO. Complete and fill in the UDP checksum as HW cannot
+	 * do checksum of UDP packets sent as multiple IP fragments.
+	 */
+	offset = skb_checksum_start_offset(skb);
+	csum = skb_checksum(skb, offset, skb->len - offset, 0);
+	offset += skb->csum_offset;
+	*(__sum16 *)(skb->data + offset) = csum_fold(csum);
+	skb->ip_summed = CHECKSUM_NONE;
+
+	/* Check if there is enough headroom to insert fragment header. */
+	if ((skb_mac_header(skb) < skb->head + frag_hdr_sz) &&
+	    pskb_expand_head(skb, frag_hdr_sz, 0, GFP_ATOMIC))
+		goto out;
+
+	/* Find the unfragmentable header and shift it left by frag_hdr_sz
+	 * bytes to insert fragment header.
+	 */
+	unfrag_ip6hlen = ip6_find_1stfragopt(skb, &prevhdr);
+	nexthdr = *prevhdr;
+	*prevhdr = NEXTHDR_FRAGMENT;
+	unfrag_len = skb_network_header(skb) - skb_mac_header(skb) +
+		     unfrag_ip6hlen;
+	mac_start = skb_mac_header(skb);
+	memmove(mac_start-frag_hdr_sz, mac_start, unfrag_len);
+
+	skb->mac_header -= frag_hdr_sz;
+	skb->network_header -= frag_hdr_sz;
+
+	fptr = (struct frag_hdr *)(skb_network_header(skb) + unfrag_ip6hlen);
+	fptr->nexthdr = nexthdr;
+	fptr->reserved = 0;
+	ipv6_select_ident(fptr, (struct rt6_info *)skb_dst(skb));
+
+	/* Fragment the skb. ipv6 header and the remaining fields of the
+	 * fragment header are updated in ipv6_gso_segment()
+	 */
+	segs = skb_segment(skb, features);
+
+out:
+	return segs;
+}
+static const struct net_offload udpv6_offload = {
+	.callbacks = {
+		.gso_send_check =	udp6_ufo_send_check,
+		.gso_segment	=	udp6_ufo_fragment,
+	},
+};
+
+int __init udp_offload_init(void)
+{
+	return inet6_add_offload(&udpv6_offload, IPPROTO_UDP);
+}
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index f8c4c08..c984413 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -20,7 +20,7 @@
 #include <net/ip.h>
 #include <net/ipv6.h>
 #include <net/ip6_route.h>
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 #include <net/mip6.h>
 #endif
 
@@ -182,7 +182,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
 			fl6->flowi6_proto = nexthdr;
 			return;
 
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 		case IPPROTO_MH:
 			if (!onlyproto && pskb_may_pull(skb, nh + offset + 3 - skb->data)) {
 				struct ip6_mh *mh;
@@ -327,21 +327,7 @@ static struct ctl_table_header *sysctl_hdr;
 int __init xfrm6_init(void)
 {
 	int ret;
-	unsigned int gc_thresh;
-
-	/*
-	 * We need a good default value for the xfrm6 gc threshold.
-	 * In ipv4 we set it to the route hash table size * 8, which
-	 * is half the size of the maximaum route cache for ipv4.  It
-	 * would be good to do the same thing for v6, except the table is
-	 * constructed differently here.  Here each table for a net namespace
-	 * can have FIB_TABLE_HASHSZ entries, so lets go with the same
-	 * computation that we used for ipv4 here.  Also, lets keep the initial
-	 * gc_thresh to a minimum of 1024, since, the ipv6 route cache defaults
-	 * to that as a minimum as well
-	 */
-	gc_thresh = FIB6_TABLE_HASHSZ * 8;
-	xfrm6_dst_ops.gc_thresh = (gc_thresh < 1024) ? 1024 : gc_thresh;
+
 	dst_entries_init(&xfrm6_dst_ops);
 
 	ret = xfrm6_policy_init();
@@ -370,7 +356,6 @@ void xfrm6_fini(void)
 	if (sysctl_hdr)
 		unregister_net_sysctl_table(sysctl_hdr);
 #endif
-	//xfrm6_input_fini();
 	xfrm6_policy_fini();
 	xfrm6_state_fini();
 	dst_entries_destroy(&xfrm6_dst_ops);
diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c
index 3f2f7c4..d8c70b8 100644
--- a/net/ipv6/xfrm6_state.c
+++ b/net/ipv6/xfrm6_state.c
@@ -101,7 +101,7 @@ static int __xfrm6_state_sort_cmp(void *p)
 			return 1;
 		else
 			return 3;
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 	case XFRM_MODE_ROUTEOPTIMIZATION:
 	case XFRM_MODE_IN_TRIGGER:
 		return 2;
@@ -134,7 +134,7 @@ static int __xfrm6_tmpl_sort_cmp(void *p)
 	switch (v->mode) {
 	case XFRM_MODE_TRANSPORT:
 		return 1;
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
 	case XFRM_MODE_ROUTEOPTIMIZATION:
 	case XFRM_MODE_IN_TRIGGER:
 		return 2;
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 08897a3..5b426a6 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -141,7 +141,7 @@ static int pfkey_create(struct net *net, struct socket *sock, int protocol,
 	struct sock *sk;
 	int err;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 	if (sock->type != SOCK_RAW)
 		return -ESOCKTNOSUPPORT;
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index 6c4cc12..bbba3a1 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -632,7 +632,7 @@ static int l2tp_nl_session_send(struct sk_buff *skb, u32 portid, u32 seq, int fl
 	     nla_put_u16(skb, L2TP_ATTR_MRU, session->mru)))
 		goto nla_put_failure;
 
-	if ((session->ifname && session->ifname[0] &&
+	if ((session->ifname[0] &&
 	     nla_put_string(skb, L2TP_ATTR_IFNAME, session->ifname)) ||
 	    (session->cookie_len &&
 	     nla_put(skb, L2TP_ATTR_COOKIE, session->cookie_len,
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index c219000..8870988 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -160,7 +160,7 @@ static int llc_ui_create(struct net *net, struct socket *sock, int protocol,
 	struct sock *sk;
 	int rc = -ESOCKTNOSUPPORT;
 
-	if (!capable(CAP_NET_RAW))
+	if (!ns_capable(net->user_ns, CAP_NET_RAW))
 		return -EPERM;
 
 	if (!net_eq(net, &init_net))
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index 63af254..b4ecf26 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -248,7 +248,7 @@ config MAC80211_MHWMP_DEBUG
 	  Do not select this option.
 
 config MAC80211_MESH_SYNC_DEBUG
-	bool "Verbose mesh mesh synchronization debugging"
+	bool "Verbose mesh synchronization debugging"
 	depends on MAC80211_DEBUG_MENU
 	depends on MAC80211_MESH
 	---help---
diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile
index a7dd110..4911202 100644
--- a/net/mac80211/Makefile
+++ b/net/mac80211/Makefile
@@ -8,6 +8,7 @@ mac80211-y := \
 	wpa.o \
 	scan.o offchannel.o \
 	ht.o agg-tx.o agg-rx.o \
+	vht.o \
 	ibss.o \
 	iface.o \
 	rate.o \
diff --git a/net/mac80211/aes_cmac.c b/net/mac80211/aes_cmac.c
index a04752e..537488c 100644
--- a/net/mac80211/aes_cmac.c
+++ b/net/mac80211/aes_cmac.c
@@ -10,6 +10,7 @@
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/crypto.h>
+#include <linux/export.h>
 #include <linux/err.h>
 #include <crypto/aes.h>
 
@@ -126,3 +127,20 @@ void ieee80211_aes_cmac_key_free(struct crypto_cipher *tfm)
 {
 	crypto_free_cipher(tfm);
 }
+
+void ieee80211_aes_cmac_calculate_k1_k2(struct ieee80211_key_conf *keyconf,
+					u8 *k1, u8 *k2)
+{
+	u8 l[AES_BLOCK_SIZE] = {};
+	struct ieee80211_key *key =
+		container_of(keyconf, struct ieee80211_key, conf);
+
+	crypto_cipher_encrypt_one(key->u.aes_cmac.tfm, l, l);
+
+	memcpy(k1, l, AES_BLOCK_SIZE);
+	gf_mulx(k1);
+
+	memcpy(k2, k1, AES_BLOCK_SIZE);
+	gf_mulx(k2);
+}
+EXPORT_SYMBOL(ieee80211_aes_cmac_calculate_k1_k2);
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 186d991..808338a 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -118,7 +118,7 @@ void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap,
 		return;
 	}
 
-	for (i = 0; i < STA_TID_NUM; i++)
+	for (i = 0; i < IEEE80211_NUM_TIDS; i++)
 		if (ba_rx_bitmap & BIT(i))
 			set_bit(i, sta->ampdu_mlme.tid_rx_stop_requested);
 
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 3195a63..eb9df22 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -445,10 +445,10 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
 
 	trace_api_start_tx_ba_session(pubsta, tid);
 
-	if (WARN_ON(!local->ops->ampdu_action))
+	if (WARN_ON_ONCE(!local->ops->ampdu_action))
 		return -EINVAL;
 
-	if ((tid >= STA_TID_NUM) ||
+	if ((tid >= IEEE80211_NUM_TIDS) ||
 	    !(local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION) ||
 	    (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW))
 		return -EINVAL;
@@ -605,9 +605,9 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid)
 
 	trace_api_start_tx_ba_cb(sdata, ra, tid);
 
-	if (tid >= STA_TID_NUM) {
+	if (tid >= IEEE80211_NUM_TIDS) {
 		ht_dbg(sdata, "Bad TID value: tid = %d (>= %d)\n",
-		       tid, STA_TID_NUM);
+		       tid, IEEE80211_NUM_TIDS);
 		return;
 	}
 
@@ -687,7 +687,7 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid)
 	if (!local->ops->ampdu_action)
 		return -EINVAL;
 
-	if (tid >= STA_TID_NUM)
+	if (tid >= IEEE80211_NUM_TIDS)
 		return -EINVAL;
 
 	spin_lock_bh(&sta->lock);
@@ -722,9 +722,9 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid)
 
 	trace_api_stop_tx_ba_cb(sdata, ra, tid);
 
-	if (tid >= STA_TID_NUM) {
+	if (tid >= IEEE80211_NUM_TIDS) {
 		ht_dbg(sdata, "Bad TID value: tid = %d (>= %d)\n",
-		       tid, STA_TID_NUM);
+		       tid, IEEE80211_NUM_TIDS);
 		return;
 	}
 
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 7371f67..5c61677 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -370,29 +370,64 @@ static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 	return 0;
 }
 
-static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
-{
-	if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
-		struct ieee80211_supported_band *sband;
-		sband = sta->local->hw.wiphy->bands[
-				sta->local->oper_channel->band];
-		rate->legacy = sband->bitrates[idx].bitrate;
-	} else
-		rate->mcs = idx;
-}
-
 void sta_set_rate_info_tx(struct sta_info *sta,
 			  const struct ieee80211_tx_rate *rate,
 			  struct rate_info *rinfo)
 {
 	rinfo->flags = 0;
-	if (rate->flags & IEEE80211_TX_RC_MCS)
+	if (rate->flags & IEEE80211_TX_RC_MCS) {
 		rinfo->flags |= RATE_INFO_FLAGS_MCS;
+		rinfo->mcs = rate->idx;
+	} else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
+		rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
+		rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
+		rinfo->nss = ieee80211_rate_get_vht_nss(rate);
+	} else {
+		struct ieee80211_supported_band *sband;
+		sband = sta->local->hw.wiphy->bands[
+				ieee80211_get_sdata_band(sta->sdata)];
+		rinfo->legacy = sband->bitrates[rate->idx].bitrate;
+	}
 	if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 		rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
+	if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
+		rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
+	if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
+		rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 	if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 		rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
-	rate_idx_to_bitrate(rinfo, sta, rate->idx);
+}
+
+void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
+{
+	rinfo->flags = 0;
+
+	if (sta->last_rx_rate_flag & RX_FLAG_HT) {
+		rinfo->flags |= RATE_INFO_FLAGS_MCS;
+		rinfo->mcs = sta->last_rx_rate_idx;
+	} else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
+		rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
+		rinfo->nss = sta->last_rx_rate_vht_nss;
+		rinfo->mcs = sta->last_rx_rate_idx;
+	} else {
+		struct ieee80211_supported_band *sband;
+
+		sband = sta->local->hw.wiphy->bands[
+				ieee80211_get_sdata_band(sta->sdata)];
+		rinfo->legacy =
+			sband->bitrates[sta->last_rx_rate_idx].bitrate;
+	}
+
+	if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
+		rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
+	if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
+		rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
+	if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
+		rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
+	if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
+		rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
+	if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
+		rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 }
 
 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
@@ -441,15 +476,7 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 	}
 
 	sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
-
-	sinfo->rxrate.flags = 0;
-	if (sta->last_rx_rate_flag & RX_FLAG_HT)
-		sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
-	if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
-		sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
-	if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
-		sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
-	rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
+	sta_set_rate_info_rx(sta, &sinfo->rxrate);
 
 	if (ieee80211_vif_is_mesh(&sdata->vif)) {
 #ifdef CONFIG_MAC80211_MESH
@@ -532,6 +559,8 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy,
 				   u64 *data)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_channel *channel;
 	struct sta_info *sta;
 	struct ieee80211_local *local = sdata->local;
 	struct station_info sinfo;
@@ -607,19 +636,26 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy,
 do_survey:
 	i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
 	/* Get survey stats for current channel */
-	q = 0;
-	while (true) {
-		survey.filled = 0;
-		if (drv_get_survey(local, q, &survey) != 0) {
-			survey.filled = 0;
-			break;
-		}
+	survey.filled = 0;
 
-		if (survey.channel &&
-		    (local->oper_channel->center_freq ==
-		     survey.channel->center_freq))
-			break;
-		q++;
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (chanctx_conf)
+		channel = chanctx_conf->def.chan;
+	else
+		channel = NULL;
+	rcu_read_unlock();
+
+	if (channel) {
+		q = 0;
+		do {
+			survey.filled = 0;
+			if (drv_get_survey(local, q, &survey) != 0) {
+				survey.filled = 0;
+				break;
+			}
+			q++;
+		} while (channel != survey.channel);
 	}
 
 	if (survey.filled)
@@ -724,47 +760,37 @@ static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 	return ret;
 }
 
-static int ieee80211_set_channel(struct wiphy *wiphy,
-				 struct net_device *netdev,
-				 struct ieee80211_channel *chan,
-				 enum nl80211_channel_type channel_type)
+static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
+					 struct cfg80211_chan_def *chandef)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
-	struct ieee80211_sub_if_data *sdata = NULL;
-
-	if (netdev)
-		sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
-
-	switch (ieee80211_get_channel_mode(local, NULL)) {
-	case CHAN_MODE_HOPPING:
-		return -EBUSY;
-	case CHAN_MODE_FIXED:
-		if (local->oper_channel != chan ||
-		    (!sdata && local->_oper_channel_type != channel_type))
-			return -EBUSY;
-		if (!sdata && local->_oper_channel_type == channel_type)
-			return 0;
-		break;
-	case CHAN_MODE_UNDEFINED:
-		break;
-	}
+	struct ieee80211_sub_if_data *sdata;
+	int ret = 0;
 
-	if (!ieee80211_set_channel_type(local, sdata, channel_type))
-		return -EBUSY;
+	if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
+		return 0;
 
-	local->oper_channel = chan;
+	mutex_lock(&local->iflist_mtx);
+	if (local->use_chanctx) {
+		sdata = rcu_dereference_protected(
+				local->monitor_sdata,
+				lockdep_is_held(&local->iflist_mtx));
+		if (sdata) {
+			ieee80211_vif_release_channel(sdata);
+			ret = ieee80211_vif_use_channel(sdata, chandef,
+					IEEE80211_CHANCTX_EXCLUSIVE);
+		}
+	} else if (local->open_count == local->monitors) {
+		local->_oper_channel = chandef->chan;
+		local->_oper_channel_type = cfg80211_get_chandef_type(chandef);
+		ieee80211_hw_config(local, 0);
+	}
 
-	/* auto-detects changes */
-	ieee80211_hw_config(local, 0);
+	if (ret == 0)
+		local->monitor_chandef = *chandef;
+	mutex_unlock(&local->iflist_mtx);
 
-	return 0;
-}
-
-static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
-					 struct ieee80211_channel *chan,
-					 enum nl80211_channel_type channel_type)
-{
-	return ieee80211_set_channel(wiphy, NULL, chan, channel_type);
+	return ret;
 }
 
 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
@@ -872,15 +898,20 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	u32 changed = BSS_CHANGED_BEACON_INT |
 		      BSS_CHANGED_BEACON_ENABLED |
 		      BSS_CHANGED_BEACON |
-		      BSS_CHANGED_SSID;
+		      BSS_CHANGED_SSID |
+		      BSS_CHANGED_P2P_PS;
 	int err;
 
 	old = rtnl_dereference(sdata->u.ap.beacon);
 	if (old)
 		return -EALREADY;
 
-	err = ieee80211_set_channel(wiphy, dev, params->channel,
-				    params->channel_type);
+	/* TODO: make hostapd tell us what it wants */
+	sdata->smps_mode = IEEE80211_SMPS_OFF;
+	sdata->needed_rx_chains = sdata->local->rx_chains;
+
+	err = ieee80211_vif_use_channel(sdata, &params->chandef,
+					IEEE80211_CHANCTX_SHARED);
 	if (err)
 		return err;
 
@@ -907,11 +938,23 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	sdata->vif.bss_conf.hidden_ssid =
 		(params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
 
+	sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow;
+	sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps;
+
 	err = ieee80211_assign_beacon(sdata, &params->beacon);
 	if (err < 0)
 		return err;
 	changed |= err;
 
+	err = drv_start_ap(sdata->local, sdata);
+	if (err) {
+		old = rtnl_dereference(sdata->u.ap.beacon);
+		if (old)
+			kfree_rcu(old, rcu_head);
+		RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
+		return err;
+	}
+
 	ieee80211_bss_info_change_notify(sdata, changed);
 
 	netif_carrier_on(dev);
@@ -943,26 +986,40 @@ static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
 
 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 {
-	struct ieee80211_sub_if_data *sdata, *vlan;
-	struct beacon_data *old;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_sub_if_data *vlan;
+	struct ieee80211_local *local = sdata->local;
+	struct beacon_data *old_beacon;
+	struct probe_resp *old_probe_resp;
 
-	old = rtnl_dereference(sdata->u.ap.beacon);
-	if (!old)
+	old_beacon = rtnl_dereference(sdata->u.ap.beacon);
+	if (!old_beacon)
 		return -ENOENT;
+	old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp);
 
+	/* turn off carrier for this interface and dependent VLANs */
 	list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
 		netif_carrier_off(vlan->dev);
 	netif_carrier_off(dev);
 
+	/* remove beacon and probe response */
 	RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
+	RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
+	kfree_rcu(old_beacon, rcu_head);
+	if (old_probe_resp)
+		kfree_rcu(old_probe_resp, rcu_head);
 
-	kfree_rcu(old, rcu_head);
-
-	sta_info_flush(sdata->local, sdata);
+	sta_info_flush(local, sdata);
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 
+	drv_stop_ap(sdata->local, sdata);
+
+	/* free all potentially still buffered bcast frames */
+	local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
+	skb_queue_purge(&sdata->u.ap.ps.bc_buf);
+
+	ieee80211_vif_release_channel(sdata);
+
 	return 0;
 }
 
@@ -1019,9 +1076,10 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 	int i, j;
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
 	u32 mask, set;
 
-	sband = local->hw.wiphy->bands[local->oper_channel->band];
+	sband = local->hw.wiphy->bands[band];
 
 	mask = params->sta_flags_mask;
 	set = params->sta_flags_set;
@@ -1136,7 +1194,7 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 					rates |= BIT(j);
 			}
 		}
-		sta->sta.supp_rates[local->oper_channel->band] = rates;
+		sta->sta.supp_rates[band] = rates;
 	}
 
 	if (params->ht_capa)
@@ -1144,6 +1202,11 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 						  params->ht_capa,
 						  &sta->sta.ht_cap);
 
+	if (params->vht_capa)
+		ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
+						    params->vht_capa,
+						    &sta->sta.vht_cap);
+
 	if (ieee80211_vif_is_mesh(&sdata->vif)) {
 #ifdef CONFIG_MAC80211_MESH
 		if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
@@ -1664,8 +1727,12 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
 	if (err)
 		return err;
 
-	err = ieee80211_set_channel(wiphy, dev, setup->channel,
-				    setup->channel_type);
+	/* can mesh use other SMPS modes? */
+	sdata->smps_mode = IEEE80211_SMPS_OFF;
+	sdata->needed_rx_chains = sdata->local->rx_chains;
+
+	err = ieee80211_vif_use_channel(sdata, &setup->chandef,
+					IEEE80211_CHANCTX_SHARED);
 	if (err)
 		return err;
 
@@ -1679,6 +1746,7 @@ static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
 	ieee80211_stop_mesh(sdata);
+	ieee80211_vif_release_channel(sdata);
 
 	return 0;
 }
@@ -1688,10 +1756,14 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 				struct net_device *dev,
 				struct bss_parameters *params)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	enum ieee80211_band band;
 	u32 changed = 0;
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	if (!rtnl_dereference(sdata->u.ap.beacon))
+		return -ENOENT;
+
+	band = ieee80211_get_sdata_band(sdata);
 
 	if (params->use_cts_prot >= 0) {
 		sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
@@ -1704,7 +1776,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 	}
 
 	if (!sdata->vif.bss_conf.use_short_slot &&
-	    sdata->local->oper_channel->band == IEEE80211_BAND_5GHZ) {
+	    band == IEEE80211_BAND_5GHZ) {
 		sdata->vif.bss_conf.use_short_slot = true;
 		changed |= BSS_CHANGED_ERP_SLOT;
 	}
@@ -1718,9 +1790,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 	if (params->basic_rates) {
 		int i, j;
 		u32 rates = 0;
-		struct ieee80211_local *local = wiphy_priv(wiphy);
-		struct ieee80211_supported_band *sband =
-			wiphy->bands[local->oper_channel->band];
+		struct ieee80211_supported_band *sband = wiphy->bands[band];
 
 		for (i = 0; i < params->basic_rates_len; i++) {
 			int rate = (params->basic_rates[i] & 0x7f) * 5;
@@ -1746,6 +1816,16 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 		changed |= BSS_CHANGED_HT;
 	}
 
+	if (params->p2p_ctwindow >= 0) {
+		sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow;
+		changed |= BSS_CHANGED_P2P_PS;
+	}
+
+	if (params->p2p_opp_ps >= 0) {
+		sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps;
+		changed |= BSS_CHANGED_P2P_PS;
+	}
+
 	ieee80211_bss_info_change_notify(sdata, changed);
 
 	return 0;
@@ -1829,7 +1909,16 @@ static int ieee80211_scan(struct wiphy *wiphy,
 		 * beaconing hasn't been configured yet
 		 */
 	case NL80211_IFTYPE_AP:
-		if (sdata->u.ap.beacon)
+		/*
+		 * If the scan has been forced (and the driver supports
+		 * forcing), don't care about being beaconing already.
+		 * This will create problems to the attached stations (e.g. all
+		 * the  frames sent while scanning on other channel will be
+		 * lost)
+		 */
+		if (sdata->u.ap.beacon &&
+		    (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
+		     !(req->flags & NL80211_SCAN_FLAG_AP)))
 			return -EOPNOTSUPP;
 		break;
 	default:
@@ -1872,20 +1961,6 @@ static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
 			   struct cfg80211_assoc_request *req)
 {
-	struct ieee80211_local *local = wiphy_priv(wiphy);
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-	switch (ieee80211_get_channel_mode(local, sdata)) {
-	case CHAN_MODE_HOPPING:
-		return -EBUSY;
-	case CHAN_MODE_FIXED:
-		if (local->oper_channel == req->bss->channel)
-			break;
-		return -EBUSY;
-	case CHAN_MODE_UNDEFINED:
-		break;
-	}
-
 	return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
 }
 
@@ -1904,30 +1979,22 @@ static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
 			       struct cfg80211_ibss_params *params)
 {
-	struct ieee80211_local *local = wiphy_priv(wiphy);
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-	switch (ieee80211_get_channel_mode(local, sdata)) {
-	case CHAN_MODE_HOPPING:
-		return -EBUSY;
-	case CHAN_MODE_FIXED:
-		if (!params->channel_fixed)
-			return -EBUSY;
-		if (local->oper_channel == params->channel)
-			break;
-		return -EBUSY;
-	case CHAN_MODE_UNDEFINED:
-		break;
-	}
-
-	return ieee80211_ibss_join(sdata, params);
+	return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
 }
 
 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
 {
+	return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
+}
+
+static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
+				    int rate[IEEE80211_NUM_BANDS])
+{
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	return ieee80211_ibss_leave(sdata);
+	memcpy(sdata->vif.bss_conf.mcast_rate, rate, sizeof(rate));
+
+	return 0;
 }
 
 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
@@ -1956,10 +2023,16 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 			return err;
 	}
 
-	if (changed & WIPHY_PARAM_RETRY_SHORT)
+	if (changed & WIPHY_PARAM_RETRY_SHORT) {
+		if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
+			return -EINVAL;
 		local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
-	if (changed & WIPHY_PARAM_RETRY_LONG)
+	}
+	if (changed & WIPHY_PARAM_RETRY_LONG) {
+		if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
+			return -EINVAL;
 		local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
+	}
 	if (changed &
 	    (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
@@ -1968,41 +2041,65 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 }
 
 static int ieee80211_set_tx_power(struct wiphy *wiphy,
+				  struct wireless_dev *wdev,
 				  enum nl80211_tx_power_setting type, int mbm)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
-	struct ieee80211_channel *chan = local->oper_channel;
-	u32 changes = 0;
+	struct ieee80211_sub_if_data *sdata;
+
+	if (wdev) {
+		sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+
+		switch (type) {
+		case NL80211_TX_POWER_AUTOMATIC:
+			sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
+			break;
+		case NL80211_TX_POWER_LIMITED:
+		case NL80211_TX_POWER_FIXED:
+			if (mbm < 0 || (mbm % 100))
+				return -EOPNOTSUPP;
+			sdata->user_power_level = MBM_TO_DBM(mbm);
+			break;
+		}
+
+		ieee80211_recalc_txpower(sdata);
+
+		return 0;
+	}
 
 	switch (type) {
 	case NL80211_TX_POWER_AUTOMATIC:
-		local->user_power_level = -1;
+		local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
 		break;
 	case NL80211_TX_POWER_LIMITED:
-		if (mbm < 0 || (mbm % 100))
-			return -EOPNOTSUPP;
-		local->user_power_level = MBM_TO_DBM(mbm);
-		break;
 	case NL80211_TX_POWER_FIXED:
 		if (mbm < 0 || (mbm % 100))
 			return -EOPNOTSUPP;
-		/* TODO: move to cfg80211 when it knows the channel */
-		if (MBM_TO_DBM(mbm) > chan->max_power)
-			return -EINVAL;
 		local->user_power_level = MBM_TO_DBM(mbm);
 		break;
 	}
 
-	ieee80211_hw_config(local, changes);
+	mutex_lock(&local->iflist_mtx);
+	list_for_each_entry(sdata, &local->interfaces, list)
+		sdata->user_power_level = local->user_power_level;
+	list_for_each_entry(sdata, &local->interfaces, list)
+		ieee80211_recalc_txpower(sdata);
+	mutex_unlock(&local->iflist_mtx);
 
 	return 0;
 }
 
-static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
+static int ieee80211_get_tx_power(struct wiphy *wiphy,
+				  struct wireless_dev *wdev,
+				  int *dbm)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 
-	*dbm = local->hw.conf.power_level;
+	if (!local->use_chanctx)
+		*dbm = local->hw.conf.power_level;
+	else
+		*dbm = sdata->vif.bss_conf.txpower;
 
 	return 0;
 }
@@ -2067,13 +2164,12 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
 
 	/*
 	 * If not associated, or current association is not an HT
-	 * association, there's no need to send an action frame.
+	 * association, there's no need to do anything, just store
+	 * the new value until we associate.
 	 */
 	if (!sdata->u.mgd.associated ||
-	    sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
-		ieee80211_recalc_smps(sdata->local);
+	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
 		return 0;
-	}
 
 	ap = sdata->u.mgd.associated->bssid;
 
@@ -2179,7 +2275,6 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
 static int ieee80211_start_roc_work(struct ieee80211_local *local,
 				    struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_channel *channel,
-				    enum nl80211_channel_type channel_type,
 				    unsigned int duration, u64 *cookie,
 				    struct sk_buff *txskb)
 {
@@ -2189,12 +2284,14 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
 
 	lockdep_assert_held(&local->mtx);
 
+	if (local->use_chanctx && !local->ops->remain_on_channel)
+		return -EOPNOTSUPP;
+
 	roc = kzalloc(sizeof(*roc), GFP_KERNEL);
 	if (!roc)
 		return -ENOMEM;
 
 	roc->chan = channel;
-	roc->chan_type = channel_type;
 	roc->duration = duration;
 	roc->req_duration = duration;
 	roc->frame = txskb;
@@ -2227,7 +2324,7 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
 	if (!duration)
 		duration = 10;
 
-	ret = drv_remain_on_channel(local, channel, channel_type, duration);
+	ret = drv_remain_on_channel(local, sdata, channel, duration);
 	if (ret) {
 		kfree(roc);
 		return ret;
@@ -2238,7 +2335,7 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
 
  out_check_combine:
 	list_for_each_entry(tmp, &local->roc_list, list) {
-		if (tmp->chan != channel || tmp->chan_type != channel_type)
+		if (tmp->chan != channel || tmp->sdata != sdata)
 			continue;
 
 		/*
@@ -2332,13 +2429,22 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
 		list_add_tail(&roc->list, &local->roc_list);
 
 	/*
-	 * cookie is either the roc (for normal roc)
+	 * cookie is either the roc cookie (for normal roc)
 	 * or the SKB (for mgmt TX)
 	 */
-	if (txskb)
+	if (!txskb) {
+		/* local->mtx protects this */
+		local->roc_cookie_counter++;
+		roc->cookie = local->roc_cookie_counter;
+		/* wow, you wrapped 64 bits ... more likely a bug */
+		if (WARN_ON(roc->cookie == 0)) {
+			roc->cookie = 1;
+			local->roc_cookie_counter++;
+		}
+		*cookie = roc->cookie;
+	} else {
 		*cookie = (unsigned long)txskb;
-	else
-		*cookie = (unsigned long)roc;
+	}
 
 	return 0;
 }
@@ -2346,7 +2452,6 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
 				       struct wireless_dev *wdev,
 				       struct ieee80211_channel *chan,
-				       enum nl80211_channel_type channel_type,
 				       unsigned int duration,
 				       u64 *cookie)
 {
@@ -2355,7 +2460,7 @@ static int ieee80211_remain_on_channel(struct wiphy *wiphy,
 	int ret;
 
 	mutex_lock(&local->mtx);
-	ret = ieee80211_start_roc_work(local, sdata, chan, channel_type,
+	ret = ieee80211_start_roc_work(local, sdata, chan,
 				       duration, cookie, NULL);
 	mutex_unlock(&local->mtx);
 
@@ -2373,7 +2478,7 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local,
 		struct ieee80211_roc_work *dep, *tmp2;
 
 		list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
-			if (!mgmt_tx && (unsigned long)dep != cookie)
+			if (!mgmt_tx && dep->cookie != cookie)
 				continue;
 			else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
 				continue;
@@ -2385,7 +2490,7 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local,
 			return 0;
 		}
 
-		if (!mgmt_tx && (unsigned long)roc != cookie)
+		if (!mgmt_tx && roc->cookie != cookie)
 			continue;
 		else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
 			continue;
@@ -2448,10 +2553,8 @@ static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
 
 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 			     struct ieee80211_channel *chan, bool offchan,
-			     enum nl80211_channel_type channel_type,
-			     bool channel_type_valid, unsigned int wait,
-			     const u8 *buf, size_t len, bool no_cck,
-			     bool dont_wait_for_ack, u64 *cookie)
+			     unsigned int wait, const u8 *buf, size_t len,
+			     bool no_cck, bool dont_wait_for_ack, u64 *cookie)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 	struct ieee80211_local *local = sdata->local;
@@ -2515,10 +2618,16 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 
 	/* Check if the operating channel is the requested channel */
 	if (!need_offchan) {
-		need_offchan = chan != local->oper_channel;
-		if (channel_type_valid &&
-		    channel_type != local->_oper_channel_type)
+		struct ieee80211_chanctx_conf *chanctx_conf;
+
+		rcu_read_lock();
+		chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+
+		if (chanctx_conf)
+			need_offchan = chan != chanctx_conf->def.chan;
+		else
 			need_offchan = true;
+		rcu_read_unlock();
 	}
 
 	if (need_offchan && !offchan) {
@@ -2552,7 +2661,7 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 			local->hw.offchannel_tx_hw_queue;
 
 	/* This will handle all kinds of coalescing and immediate TX */
-	ret = ieee80211_start_roc_work(local, sdata, chan, channel_type,
+	ret = ieee80211_start_roc_work(local, sdata, chan,
 				       wait, cookie, skb);
 	if (ret)
 		kfree_skb(skb);
@@ -2670,7 +2779,7 @@ static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
 	u16 capab;
 
 	capab = 0;
-	if (local->oper_channel->band != IEEE80211_BAND_2GHZ)
+	if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
 		return capab;
 
 	if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
@@ -2702,7 +2811,7 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
 			       u16 status_code, struct sk_buff *skb)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct ieee80211_local *local = sdata->local;
+	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
 	struct ieee80211_tdls_data *tf;
 
 	tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
@@ -2722,10 +2831,8 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
 		tf->u.setup_req.capability =
 			cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
 
-		ieee80211_add_srates_ie(sdata, skb, false,
-					local->oper_channel->band);
-		ieee80211_add_ext_srates_ie(sdata, skb, false,
-					    local->oper_channel->band);
+		ieee80211_add_srates_ie(sdata, skb, false, band);
+		ieee80211_add_ext_srates_ie(sdata, skb, false, band);
 		ieee80211_tdls_add_ext_capab(skb);
 		break;
 	case WLAN_TDLS_SETUP_RESPONSE:
@@ -2738,10 +2845,8 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
 		tf->u.setup_resp.capability =
 			cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
 
-		ieee80211_add_srates_ie(sdata, skb, false,
-					local->oper_channel->band);
-		ieee80211_add_ext_srates_ie(sdata, skb, false,
-					    local->oper_channel->band);
+		ieee80211_add_srates_ie(sdata, skb, false, band);
+		ieee80211_add_ext_srates_ie(sdata, skb, false, band);
 		ieee80211_tdls_add_ext_capab(skb);
 		break;
 	case WLAN_TDLS_SETUP_CONFIRM:
@@ -2779,7 +2884,7 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
 			   u16 status_code, struct sk_buff *skb)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct ieee80211_local *local = sdata->local;
+	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
 	struct ieee80211_mgmt *mgmt;
 
 	mgmt = (void *)skb_put(skb, 24);
@@ -2802,10 +2907,8 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
 		mgmt->u.action.u.tdls_discover_resp.capability =
 			cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
 
-		ieee80211_add_srates_ie(sdata, skb, false,
-					local->oper_channel->band);
-		ieee80211_add_ext_srates_ie(sdata, skb, false,
-					    local->oper_channel->band);
+		ieee80211_add_srates_ie(sdata, skb, false, band);
+		ieee80211_add_ext_srates_ie(sdata, skb, false, band);
 		ieee80211_tdls_add_ext_capab(skb);
 		break;
 	default:
@@ -2822,7 +2925,6 @@ static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_tx_info *info;
 	struct sk_buff *skb = NULL;
 	bool send_direct;
 	int ret;
@@ -2848,7 +2950,6 @@ static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
 	if (!skb)
 		return -ENOMEM;
 
-	info = IEEE80211_SKB_CB(skb);
 	skb_reserve(skb, local->hw.extra_tx_headroom);
 
 	switch (action_code) {
@@ -2985,12 +3086,19 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
 	bool qos;
 	struct ieee80211_tx_info *info;
 	struct sta_info *sta;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	enum ieee80211_band band;
 
 	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (WARN_ON(!chanctx_conf)) {
+		rcu_read_unlock();
+		return -EINVAL;
+	}
+	band = chanctx_conf->def.chan->band;
 	sta = sta_info_get(sdata, peer);
 	if (sta) {
 		qos = test_sta_flag(sta, WLAN_STA_WME);
-		rcu_read_unlock();
 	} else {
 		rcu_read_unlock();
 		return -ENOLINK;
@@ -3008,8 +3116,10 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
 	}
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
-	if (!skb)
+	if (!skb) {
+		rcu_read_unlock();
 		return -ENOMEM;
+	}
 
 	skb->dev = dev;
 
@@ -3034,21 +3144,31 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
 		nullfunc->qos_ctrl = cpu_to_le16(7);
 
 	local_bh_disable();
-	ieee80211_xmit(sdata, skb);
+	ieee80211_xmit(sdata, skb, band);
 	local_bh_enable();
+	rcu_read_unlock();
 
 	*cookie = (unsigned long) skb;
 	return 0;
 }
 
-static struct ieee80211_channel *
-ieee80211_cfg_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
-			  enum nl80211_channel_type *type)
+static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
+				     struct wireless_dev *wdev,
+				     struct cfg80211_chan_def *chandef)
 {
-	struct ieee80211_local *local = wiphy_priv(wiphy);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	int ret = -ENODATA;
+
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (chanctx_conf) {
+		*chandef = chanctx_conf->def;
+		ret = 0;
+	}
+	rcu_read_unlock();
 
-	*type = local->_oper_channel_type;
-	return local->oper_channel;
+	return ret;
 }
 
 #ifdef CONFIG_PM
@@ -3103,6 +3223,7 @@ struct cfg80211_ops mac80211_config_ops = {
 	.disassoc = ieee80211_disassoc,
 	.join_ibss = ieee80211_join_ibss,
 	.leave_ibss = ieee80211_leave_ibss,
+	.set_mcast_rate = ieee80211_set_mcast_rate,
 	.set_wiphy_params = ieee80211_set_wiphy_params,
 	.set_tx_power = ieee80211_set_tx_power,
 	.get_tx_power = ieee80211_get_tx_power,
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 0bfc914..53f0312 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -3,168 +3,347 @@
  */
 
 #include <linux/nl80211.h>
+#include <linux/export.h>
 #include <net/cfg80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 
-static enum ieee80211_chan_mode
-__ieee80211_get_channel_mode(struct ieee80211_local *local,
-			     struct ieee80211_sub_if_data *ignore)
+static void ieee80211_change_chandef(struct ieee80211_local *local,
+				     struct ieee80211_chanctx *ctx,
+				     const struct cfg80211_chan_def *chandef)
 {
+	if (cfg80211_chandef_identical(&ctx->conf.def, chandef))
+		return;
+
+	WARN_ON(!cfg80211_chandef_compatible(&ctx->conf.def, chandef));
+
+	ctx->conf.def = *chandef;
+	drv_change_chanctx(local, ctx, IEEE80211_CHANCTX_CHANGE_WIDTH);
+
+	if (!local->use_chanctx) {
+		local->_oper_channel_type = cfg80211_get_chandef_type(chandef);
+		ieee80211_hw_config(local, 0);
+	}
+}
+
+static struct ieee80211_chanctx *
+ieee80211_find_chanctx(struct ieee80211_local *local,
+		       const struct cfg80211_chan_def *chandef,
+		       enum ieee80211_chanctx_mode mode)
+{
+	struct ieee80211_chanctx *ctx;
+
+	lockdep_assert_held(&local->chanctx_mtx);
+
+	if (mode == IEEE80211_CHANCTX_EXCLUSIVE)
+		return NULL;
+
+	list_for_each_entry(ctx, &local->chanctx_list, list) {
+		const struct cfg80211_chan_def *compat;
+
+		if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE)
+			continue;
+
+		compat = cfg80211_chandef_compatible(&ctx->conf.def, chandef);
+		if (!compat)
+			continue;
+
+		ieee80211_change_chandef(local, ctx, compat);
+
+		return ctx;
+	}
+
+	return NULL;
+}
+
+static struct ieee80211_chanctx *
+ieee80211_new_chanctx(struct ieee80211_local *local,
+		      const struct cfg80211_chan_def *chandef,
+		      enum ieee80211_chanctx_mode mode)
+{
+	struct ieee80211_chanctx *ctx;
+	int err;
+
+	lockdep_assert_held(&local->chanctx_mtx);
+
+	ctx = kzalloc(sizeof(*ctx) + local->hw.chanctx_data_size, GFP_KERNEL);
+	if (!ctx)
+		return ERR_PTR(-ENOMEM);
+
+	ctx->conf.def = *chandef;
+	ctx->conf.rx_chains_static = 1;
+	ctx->conf.rx_chains_dynamic = 1;
+	ctx->mode = mode;
+
+	if (!local->use_chanctx) {
+		local->_oper_channel_type =
+			cfg80211_get_chandef_type(chandef);
+		local->_oper_channel = chandef->chan;
+		ieee80211_hw_config(local, 0);
+	} else {
+		err = drv_add_chanctx(local, ctx);
+		if (err) {
+			kfree(ctx);
+			return ERR_PTR(err);
+		}
+	}
+
+	list_add_rcu(&ctx->list, &local->chanctx_list);
+
+	return ctx;
+}
+
+static void ieee80211_free_chanctx(struct ieee80211_local *local,
+				   struct ieee80211_chanctx *ctx)
+{
+	lockdep_assert_held(&local->chanctx_mtx);
+
+	WARN_ON_ONCE(ctx->refcount != 0);
+
+	if (!local->use_chanctx) {
+		local->_oper_channel_type = NL80211_CHAN_NO_HT;
+		ieee80211_hw_config(local, 0);
+	} else {
+		drv_remove_chanctx(local, ctx);
+	}
+
+	list_del_rcu(&ctx->list);
+	kfree_rcu(ctx, rcu_head);
+}
+
+static int ieee80211_assign_vif_chanctx(struct ieee80211_sub_if_data *sdata,
+					struct ieee80211_chanctx *ctx)
+{
+	struct ieee80211_local *local = sdata->local;
+	int ret;
+
+	lockdep_assert_held(&local->chanctx_mtx);
+
+	ret = drv_assign_vif_chanctx(local, sdata, ctx);
+	if (ret)
+		return ret;
+
+	rcu_assign_pointer(sdata->vif.chanctx_conf, &ctx->conf);
+	ctx->refcount++;
+
+	ieee80211_recalc_txpower(sdata);
+
+	return 0;
+}
+
+static void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
+					      struct ieee80211_chanctx *ctx)
+{
+	struct ieee80211_chanctx_conf *conf = &ctx->conf;
 	struct ieee80211_sub_if_data *sdata;
+	const struct cfg80211_chan_def *compat = NULL;
 
-	lockdep_assert_held(&local->iflist_mtx);
+	lockdep_assert_held(&local->chanctx_mtx);
 
-	list_for_each_entry(sdata, &local->interfaces, list) {
-		if (sdata == ignore)
+	rcu_read_lock();
+	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+
+		if (!ieee80211_sdata_running(sdata))
+			continue;
+		if (rcu_access_pointer(sdata->vif.chanctx_conf) != conf)
 			continue;
 
+		if (!compat)
+			compat = &sdata->vif.bss_conf.chandef;
+
+		compat = cfg80211_chandef_compatible(
+				&sdata->vif.bss_conf.chandef, compat);
+		if (!compat)
+			break;
+	}
+	rcu_read_unlock();
+
+	if (WARN_ON_ONCE(!compat))
+		return;
+
+	ieee80211_change_chandef(local, ctx, compat);
+}
+
+static void ieee80211_unassign_vif_chanctx(struct ieee80211_sub_if_data *sdata,
+					   struct ieee80211_chanctx *ctx)
+{
+	struct ieee80211_local *local = sdata->local;
+
+	lockdep_assert_held(&local->chanctx_mtx);
+
+	ctx->refcount--;
+	rcu_assign_pointer(sdata->vif.chanctx_conf, NULL);
+
+	drv_unassign_vif_chanctx(local, sdata, ctx);
+
+	if (ctx->refcount > 0) {
+		ieee80211_recalc_chanctx_chantype(sdata->local, ctx);
+		ieee80211_recalc_smps_chanctx(local, ctx);
+	}
+}
+
+static void __ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_chanctx_conf *conf;
+	struct ieee80211_chanctx *ctx;
+
+	lockdep_assert_held(&local->chanctx_mtx);
+
+	conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
+					 lockdep_is_held(&local->chanctx_mtx));
+	if (!conf)
+		return;
+
+	ctx = container_of(conf, struct ieee80211_chanctx, conf);
+
+	ieee80211_unassign_vif_chanctx(sdata, ctx);
+	if (ctx->refcount == 0)
+		ieee80211_free_chanctx(local, ctx);
+}
+
+void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
+				   struct ieee80211_chanctx *chanctx)
+{
+	struct ieee80211_sub_if_data *sdata;
+	u8 rx_chains_static, rx_chains_dynamic;
+
+	lockdep_assert_held(&local->chanctx_mtx);
+
+	rx_chains_static = 1;
+	rx_chains_dynamic = 1;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+		u8 needed_static, needed_dynamic;
+
 		if (!ieee80211_sdata_running(sdata))
 			continue;
 
+		if (rcu_access_pointer(sdata->vif.chanctx_conf) !=
+						&chanctx->conf)
+			continue;
+
 		switch (sdata->vif.type) {
-		case NL80211_IFTYPE_MONITOR:
+		case NL80211_IFTYPE_P2P_DEVICE:
 			continue;
 		case NL80211_IFTYPE_STATION:
 			if (!sdata->u.mgd.associated)
 				continue;
 			break;
-		case NL80211_IFTYPE_ADHOC:
-			if (!sdata->u.ibss.ssid_len)
-				continue;
-			if (!sdata->u.ibss.fixed_channel)
-				return CHAN_MODE_HOPPING;
-			break;
 		case NL80211_IFTYPE_AP_VLAN:
-			/* will also have _AP interface */
 			continue;
 		case NL80211_IFTYPE_AP:
-			if (!sdata->u.ap.beacon)
-				continue;
-			break;
+		case NL80211_IFTYPE_ADHOC:
+		case NL80211_IFTYPE_WDS:
 		case NL80211_IFTYPE_MESH_POINT:
-			if (!sdata->wdev.mesh_id_len)
-				continue;
 			break;
 		default:
+			WARN_ON_ONCE(1);
+		}
+
+		switch (sdata->smps_mode) {
+		default:
+			WARN_ONCE(1, "Invalid SMPS mode %d\n",
+				  sdata->smps_mode);
+			/* fall through */
+		case IEEE80211_SMPS_OFF:
+			needed_static = sdata->needed_rx_chains;
+			needed_dynamic = sdata->needed_rx_chains;
+			break;
+		case IEEE80211_SMPS_DYNAMIC:
+			needed_static = 1;
+			needed_dynamic = sdata->needed_rx_chains;
+			break;
+		case IEEE80211_SMPS_STATIC:
+			needed_static = 1;
+			needed_dynamic = 1;
 			break;
 		}
 
-		return CHAN_MODE_FIXED;
+		rx_chains_static = max(rx_chains_static, needed_static);
+		rx_chains_dynamic = max(rx_chains_dynamic, needed_dynamic);
 	}
+	rcu_read_unlock();
 
-	return CHAN_MODE_UNDEFINED;
-}
-
-enum ieee80211_chan_mode
-ieee80211_get_channel_mode(struct ieee80211_local *local,
-			   struct ieee80211_sub_if_data *ignore)
-{
-	enum ieee80211_chan_mode mode;
+	if (!local->use_chanctx) {
+		if (rx_chains_static > 1)
+			local->smps_mode = IEEE80211_SMPS_OFF;
+		else if (rx_chains_dynamic > 1)
+			local->smps_mode = IEEE80211_SMPS_DYNAMIC;
+		else
+			local->smps_mode = IEEE80211_SMPS_STATIC;
+		ieee80211_hw_config(local, 0);
+	}
 
-	mutex_lock(&local->iflist_mtx);
-	mode = __ieee80211_get_channel_mode(local, ignore);
-	mutex_unlock(&local->iflist_mtx);
+	if (rx_chains_static == chanctx->conf.rx_chains_static &&
+	    rx_chains_dynamic == chanctx->conf.rx_chains_dynamic)
+		return;
 
-	return mode;
+	chanctx->conf.rx_chains_static = rx_chains_static;
+	chanctx->conf.rx_chains_dynamic = rx_chains_dynamic;
+	drv_change_chanctx(local, chanctx, IEEE80211_CHANCTX_CHANGE_RX_CHAINS);
 }
 
-static enum nl80211_channel_type
-ieee80211_get_superchan(struct ieee80211_local *local,
-			struct ieee80211_sub_if_data *sdata)
+int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
+			      const struct cfg80211_chan_def *chandef,
+			      enum ieee80211_chanctx_mode mode)
 {
-	enum nl80211_channel_type superchan = NL80211_CHAN_NO_HT;
-	struct ieee80211_sub_if_data *tmp;
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_chanctx *ctx;
+	int ret;
 
-	mutex_lock(&local->iflist_mtx);
-	list_for_each_entry(tmp, &local->interfaces, list) {
-		if (tmp == sdata)
-			continue;
-
-		if (!ieee80211_sdata_running(tmp))
-			continue;
+	WARN_ON(sdata->dev && netif_carrier_ok(sdata->dev));
 
-		switch (tmp->vif.bss_conf.channel_type) {
-		case NL80211_CHAN_NO_HT:
-		case NL80211_CHAN_HT20:
-			if (superchan > tmp->vif.bss_conf.channel_type)
-				break;
+	mutex_lock(&local->chanctx_mtx);
+	__ieee80211_vif_release_channel(sdata);
 
-			superchan = tmp->vif.bss_conf.channel_type;
-			break;
-		case NL80211_CHAN_HT40PLUS:
-			WARN_ON(superchan == NL80211_CHAN_HT40MINUS);
-			superchan = NL80211_CHAN_HT40PLUS;
-			break;
-		case NL80211_CHAN_HT40MINUS:
-			WARN_ON(superchan == NL80211_CHAN_HT40PLUS);
-			superchan = NL80211_CHAN_HT40MINUS;
-			break;
-		}
+	ctx = ieee80211_find_chanctx(local, chandef, mode);
+	if (!ctx)
+		ctx = ieee80211_new_chanctx(local, chandef, mode);
+	if (IS_ERR(ctx)) {
+		ret = PTR_ERR(ctx);
+		goto out;
 	}
-	mutex_unlock(&local->iflist_mtx);
 
-	return superchan;
-}
+	sdata->vif.bss_conf.chandef = *chandef;
 
-static bool
-ieee80211_channel_types_are_compatible(enum nl80211_channel_type chantype1,
-				       enum nl80211_channel_type chantype2,
-				       enum nl80211_channel_type *compat)
-{
-	/*
-	 * start out with chantype1 being the result,
-	 * overwriting later if needed
-	 */
-	if (compat)
-		*compat = chantype1;
-
-	switch (chantype1) {
-	case NL80211_CHAN_NO_HT:
-		if (compat)
-			*compat = chantype2;
-		break;
-	case NL80211_CHAN_HT20:
-		/*
-		 * allow any change that doesn't go to no-HT
-		 * (if it already is no-HT no change is needed)
-		 */
-		if (chantype2 == NL80211_CHAN_NO_HT)
-			break;
-		if (compat)
-			*compat = chantype2;
-		break;
-	case NL80211_CHAN_HT40PLUS:
-	case NL80211_CHAN_HT40MINUS:
-		/* allow smaller bandwidth and same */
-		if (chantype2 == NL80211_CHAN_NO_HT)
-			break;
-		if (chantype2 == NL80211_CHAN_HT20)
-			break;
-		if (chantype2 == chantype1)
-			break;
-		return false;
+	ret = ieee80211_assign_vif_chanctx(sdata, ctx);
+	if (ret) {
+		/* if assign fails refcount stays the same */
+		if (ctx->refcount == 0)
+			ieee80211_free_chanctx(local, ctx);
+		goto out;
 	}
 
-	return true;
+	ieee80211_recalc_smps_chanctx(local, ctx);
+ out:
+	mutex_unlock(&local->chanctx_mtx);
+	return ret;
 }
 
-bool ieee80211_set_channel_type(struct ieee80211_local *local,
-				struct ieee80211_sub_if_data *sdata,
-				enum nl80211_channel_type chantype)
+void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata)
 {
-	enum nl80211_channel_type superchan;
-	enum nl80211_channel_type compatchan;
-
-	superchan = ieee80211_get_superchan(local, sdata);
-	if (!ieee80211_channel_types_are_compatible(superchan, chantype,
-						    &compatchan))
-		return false;
+	WARN_ON(sdata->dev && netif_carrier_ok(sdata->dev));
 
-	local->_oper_channel_type = compatchan;
-
-	if (sdata)
-		sdata->vif.bss_conf.channel_type = chantype;
+	mutex_lock(&sdata->local->chanctx_mtx);
+	__ieee80211_vif_release_channel(sdata);
+	mutex_unlock(&sdata->local->chanctx_mtx);
+}
 
-	return true;
+void ieee80211_iter_chan_contexts_atomic(
+	struct ieee80211_hw *hw,
+	void (*iter)(struct ieee80211_hw *hw,
+		     struct ieee80211_chanctx_conf *chanctx_conf,
+		     void *data),
+	void *iter_data)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct ieee80211_chanctx *ctx;
 
+	rcu_read_lock();
+	list_for_each_entry_rcu(ctx, &local->chanctx_list, list)
+		iter(hw, &ctx->conf, iter_data);
+	rcu_read_unlock();
 }
+EXPORT_SYMBOL_GPL(ieee80211_iter_chan_contexts_atomic);
diff --git a/net/mac80211/debugfs.h b/net/mac80211/debugfs.h
index 9be4e6d..214ed4e 100644
--- a/net/mac80211/debugfs.h
+++ b/net/mac80211/debugfs.h
@@ -2,9 +2,9 @@
 #define __MAC80211_DEBUGFS_H
 
 #ifdef CONFIG_MAC80211_DEBUGFS
-extern void debugfs_hw_add(struct ieee80211_local *local);
-extern int mac80211_format_buffer(char __user *userbuf, size_t count,
-				  loff_t *ppos, char *fmt, ...);
+void debugfs_hw_add(struct ieee80211_local *local);
+int __printf(4, 5) mac80211_format_buffer(char __user *userbuf, size_t count,
+					  loff_t *ppos, char *fmt, ...);
 #else
 static inline void debugfs_hw_add(struct ieee80211_local *local)
 {
diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index 090d08f..c3a3082 100644
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -116,7 +116,7 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
 				size_t count, loff_t *ppos)
 {
 	struct ieee80211_key *key = file->private_data;
-	char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf;
+	char buf[14*IEEE80211_NUM_TIDS+1], *p = buf;
 	int i, len;
 	const u8 *rpn;
 
@@ -126,7 +126,7 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
 		len = scnprintf(buf, sizeof(buf), "\n");
 		break;
 	case WLAN_CIPHER_SUITE_TKIP:
-		for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+		for (i = 0; i < IEEE80211_NUM_TIDS; i++)
 			p += scnprintf(p, sizeof(buf)+buf-p,
 				       "%08x %04x\n",
 				       key->u.tkip.rx[i].iv32,
@@ -134,7 +134,7 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
 		len = p - buf;
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
-		for (i = 0; i < NUM_RX_DATA_QUEUES + 1; i++) {
+		for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) {
 			rpn = key->u.ccmp.rx_pn[i];
 			p += scnprintf(p, sizeof(buf)+buf-p,
 				       "%02x%02x%02x%02x%02x%02x\n",
@@ -199,6 +199,22 @@ static ssize_t key_icverrors_read(struct file *file, char __user *userbuf,
 }
 KEY_OPS(icverrors);
 
+static ssize_t key_mic_failures_read(struct file *file, char __user *userbuf,
+				     size_t count, loff_t *ppos)
+{
+	struct ieee80211_key *key = file->private_data;
+	char buf[20];
+	int len;
+
+	if (key->conf.cipher != WLAN_CIPHER_SUITE_TKIP)
+		return -EINVAL;
+
+	len = scnprintf(buf, sizeof(buf), "%u\n", key->u.tkip.mic_failures);
+
+	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
+}
+KEY_OPS(mic_failures);
+
 static ssize_t key_key_read(struct file *file, char __user *userbuf,
 			    size_t count, loff_t *ppos)
 {
@@ -260,6 +276,7 @@ void ieee80211_debugfs_key_add(struct ieee80211_key *key)
 	DEBUGFS_ADD(rx_spec);
 	DEBUGFS_ADD(replays);
 	DEBUGFS_ADD(icverrors);
+	DEBUGFS_ADD(mic_failures);
 	DEBUGFS_ADD(key);
 	DEBUGFS_ADD(ifindex);
 };
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 6d5aec9..cbde5cc 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -10,6 +10,7 @@
 #include <linux/kernel.h>
 #include <linux/device.h>
 #include <linux/if.h>
+#include <linux/if_ether.h>
 #include <linux/interrupt.h>
 #include <linux/netdevice.h>
 #include <linux/rtnetlink.h>
@@ -167,7 +168,29 @@ IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
 
 IEEE80211_IF_FILE(flags, flags, HEX);
 IEEE80211_IF_FILE(state, state, LHEX);
-IEEE80211_IF_FILE(channel_type, vif.bss_conf.channel_type, DEC);
+IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
+IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC);
+IEEE80211_IF_FILE(user_power_level, user_power_level, DEC);
+
+static ssize_t
+ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata,
+			   char *buf, int buflen)
+{
+	int len;
+
+	len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n",
+			sdata->vif.hw_queue[IEEE80211_AC_VO],
+			sdata->vif.hw_queue[IEEE80211_AC_VI],
+			sdata->vif.hw_queue[IEEE80211_AC_BE],
+			sdata->vif.hw_queue[IEEE80211_AC_BK]);
+
+	if (sdata->vif.type == NL80211_IFTYPE_AP)
+		len += scnprintf(buf + len, buflen - len, "cab queue: %d\n",
+				 sdata->vif.cab_queue);
+
+	return len;
+}
+__IEEE80211_IF_FILE(hw_queues, NULL);
 
 /* STA attributes */
 IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
@@ -217,7 +240,7 @@ static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
 
 	return snprintf(buf, buflen, "request: %s\nused: %s\n",
 			smps_modes[sdata->u.mgd.req_smps],
-			smps_modes[sdata->u.mgd.ap_smps]);
+			smps_modes[sdata->smps_mode]);
 }
 
 static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
@@ -245,27 +268,6 @@ static ssize_t ieee80211_if_fmt_tkip_mic_test(
 	return -EOPNOTSUPP;
 }
 
-static int hwaddr_aton(const char *txt, u8 *addr)
-{
-	int i;
-
-	for (i = 0; i < ETH_ALEN; i++) {
-		int a, b;
-
-		a = hex_to_bin(*txt++);
-		if (a < 0)
-			return -1;
-		b = hex_to_bin(*txt++);
-		if (b < 0)
-			return -1;
-		*addr++ = (a << 4) | b;
-		if (i < 5 && *txt++ != ':')
-			return -1;
-	}
-
-	return 0;
-}
-
 static ssize_t ieee80211_if_parse_tkip_mic_test(
 	struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 {
@@ -275,13 +277,7 @@ static ssize_t ieee80211_if_parse_tkip_mic_test(
 	struct ieee80211_hdr *hdr;
 	__le16 fc;
 
-	/*
-	 * Assume colon-delimited MAC address with possible white space
-	 * following.
-	 */
-	if (buflen < 3 * ETH_ALEN - 1)
-		return -EINVAL;
-	if (hwaddr_aton(buf, addr) < 0)
+	if (!mac_pton(buf, addr))
 		return -EINVAL;
 
 	if (!ieee80211_sdata_running(sdata))
@@ -307,13 +303,16 @@ static ssize_t ieee80211_if_parse_tkip_mic_test(
 	case NL80211_IFTYPE_STATION:
 		fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
 		/* BSSID SA DA */
-		if (sdata->vif.bss_conf.bssid == NULL) {
+		mutex_lock(&sdata->u.mgd.mtx);
+		if (!sdata->u.mgd.associated) {
+			mutex_unlock(&sdata->u.mgd.mtx);
 			dev_kfree_skb(skb);
 			return -ENOTCONN;
 		}
-		memcpy(hdr->addr1, sdata->vif.bss_conf.bssid, ETH_ALEN);
+		memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
 		memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
 		memcpy(hdr->addr3, addr, ETH_ALEN);
+		mutex_unlock(&sdata->u.mgd.mtx);
 		break;
 	default:
 		dev_kfree_skb(skb);
@@ -395,14 +394,14 @@ __IEEE80211_IF_FILE_W(uapsd_max_sp_len);
 
 /* AP attributes */
 IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
-IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
-IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
+IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
+IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
 
 static ssize_t ieee80211_if_fmt_num_buffered_multicast(
 	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 {
 	return scnprintf(buf, buflen, "%u\n",
-			 skb_queue_len(&sdata->u.ap.ps_bc_buf));
+			 skb_queue_len(&sdata->u.ap.ps.bc_buf));
 }
 __IEEE80211_IF_FILE(num_buffered_multicast, NULL);
 
@@ -443,7 +442,7 @@ static ssize_t ieee80211_if_parse_tsf(
 		}
 		ret = kstrtoull(buf, 10, &tsf);
 		if (ret < 0)
-			return -EINVAL;
+			return ret;
 		if (tsf_is_delta)
 			tsf = drv_get_tsf(local, sdata) + tsf_is_delta * tsf;
 		if (local->ops->set_tsf) {
@@ -471,7 +470,7 @@ IEEE80211_IF_FILE(dropped_frames_congestion,
 		  u.mesh.mshstats.dropped_frames_congestion, DEC);
 IEEE80211_IF_FILE(dropped_frames_no_route,
 		  u.mesh.mshstats.dropped_frames_no_route, DEC);
-IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC);
+IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
 
 /* Mesh parameters */
 IEEE80211_IF_FILE(dot11MeshMaxRetries,
@@ -531,6 +530,7 @@ static void add_common_files(struct ieee80211_sub_if_data *sdata)
 	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
 	DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
 	DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
+	DEBUGFS_ADD(hw_queues);
 }
 
 static void add_sta_files(struct ieee80211_sub_if_data *sdata)
@@ -631,7 +631,9 @@ static void add_files(struct ieee80211_sub_if_data *sdata)
 
 	DEBUGFS_ADD(flags);
 	DEBUGFS_ADD(state);
-	DEBUGFS_ADD(channel_type);
+	DEBUGFS_ADD(txpower);
+	DEBUGFS_ADD(user_power_level);
+	DEBUGFS_ADD(ap_power_level);
 
 	if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
 		add_common_files(sdata);
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 5ccec2c..6fb1168 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -14,6 +14,7 @@
 #include "debugfs.h"
 #include "debugfs_sta.h"
 #include "sta_info.h"
+#include "driver-ops.h"
 
 /* sta attributtes */
 
@@ -52,6 +53,7 @@ static const struct file_operations sta_ ##name## _ops = {		\
 STA_FILE(aid, sta.aid, D);
 STA_FILE(dev, sdata->name, S);
 STA_FILE(last_signal, last_signal, D);
+STA_FILE(last_ack_signal, last_ack_signal, D);
 
 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
 			      size_t count, loff_t *ppos)
@@ -131,10 +133,10 @@ STA_OPS(connected_time);
 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
 				      size_t count, loff_t *ppos)
 {
-	char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
+	char buf[15*IEEE80211_NUM_TIDS], *p = buf;
 	int i;
 	struct sta_info *sta = file->private_data;
-	for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+	for (i = 0; i < IEEE80211_NUM_TIDS; i++)
 		p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
 			       le16_to_cpu(sta->last_seq_ctrl[i]));
 	p += scnprintf(p, sizeof(buf)+buf-p, "\n");
@@ -145,7 +147,7 @@ STA_OPS(last_seq_ctrl);
 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 					size_t count, loff_t *ppos)
 {
-	char buf[71 + STA_TID_NUM * 40], *p = buf;
+	char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
 	int i;
 	struct sta_info *sta = file->private_data;
 	struct tid_ampdu_rx *tid_rx;
@@ -158,7 +160,7 @@ static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 	p += scnprintf(p, sizeof(buf) + buf - p,
 		       "TID\t\tRX active\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
 
-	for (i = 0; i < STA_TID_NUM; i++) {
+	for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 		tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
 		tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
 
@@ -218,9 +220,11 @@ static ssize_t sta_agg_status_write(struct file *file, const char __user *userbu
 	} else
 		return -EINVAL;
 
-	tid = simple_strtoul(buf, NULL, 0);
+	ret = kstrtoul(buf, 0, &tid);
+	if (ret)
+		return ret;
 
-	if (tid >= STA_TID_NUM)
+	if (tid >= IEEE80211_NUM_TIDS)
 		return -EINVAL;
 
 	if (tx) {
@@ -320,6 +324,38 @@ static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
 }
 STA_OPS(ht_capa);
 
+static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf,
+					size_t count, loff_t *ppos)
+{
+	struct sta_info *sta = file->private_data;
+	struct rate_info rinfo;
+	u16 rate;
+	sta_set_rate_info_tx(sta, &sta->last_tx_rate, &rinfo);
+	rate = cfg80211_calculate_bitrate(&rinfo);
+
+	return mac80211_format_buffer(userbuf, count, ppos,
+				      "%d.%d MBit/s\n",
+				      rate/10, rate%10);
+}
+STA_OPS(current_tx_rate);
+
+static ssize_t sta_last_rx_rate_read(struct file *file, char __user *userbuf,
+				     size_t count, loff_t *ppos)
+{
+	struct sta_info *sta = file->private_data;
+	struct rate_info rinfo;
+	u16 rate;
+
+	sta_set_rate_info_rx(sta, &rinfo);
+
+	rate = cfg80211_calculate_bitrate(&rinfo);
+
+	return mac80211_format_buffer(userbuf, count, ppos,
+				      "%d.%d MBit/s\n",
+				      rate/10, rate%10);
+}
+STA_OPS(last_rx_rate);
+
 #define DEBUGFS_ADD(name) \
 	debugfs_create_file(#name, 0400, \
 		sta->debugfs.dir, sta, &sta_ ##name## _ops);
@@ -334,6 +370,8 @@ STA_OPS(ht_capa);
 
 void ieee80211_sta_debugfs_add(struct sta_info *sta)
 {
+	struct ieee80211_local *local = sta->local;
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
 	struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
 	u8 mac[3*ETH_ALEN];
 
@@ -366,6 +404,9 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
 	DEBUGFS_ADD(dev);
 	DEBUGFS_ADD(last_signal);
 	DEBUGFS_ADD(ht_capa);
+	DEBUGFS_ADD(last_ack_signal);
+	DEBUGFS_ADD(current_tx_rate);
+	DEBUGFS_ADD(last_rx_rate);
 
 	DEBUGFS_ADD_COUNTER(rx_packets, rx_packets);
 	DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);
@@ -379,10 +420,16 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
 	DEBUGFS_ADD_COUNTER(tx_retry_failed, tx_retry_failed);
 	DEBUGFS_ADD_COUNTER(tx_retry_count, tx_retry_count);
 	DEBUGFS_ADD_COUNTER(wep_weak_iv_count, wep_weak_iv_count);
+
+	drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs.dir);
 }
 
 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
 {
+	struct ieee80211_local *local = sta->local;
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
+
+	drv_sta_remove_debugfs(local, sdata, &sta->sta, sta->debugfs.dir);
 	debugfs_remove_recursive(sta->debugfs.dir);
 	sta->debugfs.dir = NULL;
 }
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index da9003b..c6560cc 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -490,6 +490,38 @@ static inline void drv_sta_remove(struct ieee80211_local *local,
 	trace_drv_return_void(local);
 }
 
+#ifdef CONFIG_MAC80211_DEBUGFS
+static inline void drv_sta_add_debugfs(struct ieee80211_local *local,
+				       struct ieee80211_sub_if_data *sdata,
+				       struct ieee80211_sta *sta,
+				       struct dentry *dir)
+{
+	might_sleep();
+
+	sdata = get_bss_sdata(sdata);
+	check_sdata_in_driver(sdata);
+
+	if (local->ops->sta_add_debugfs)
+		local->ops->sta_add_debugfs(&local->hw, &sdata->vif,
+					    sta, dir);
+}
+
+static inline void drv_sta_remove_debugfs(struct ieee80211_local *local,
+					  struct ieee80211_sub_if_data *sdata,
+					  struct ieee80211_sta *sta,
+					  struct dentry *dir)
+{
+	might_sleep();
+
+	sdata = get_bss_sdata(sdata);
+	check_sdata_in_driver(sdata);
+
+	if (local->ops->sta_remove_debugfs)
+		local->ops->sta_remove_debugfs(&local->hw, &sdata->vif,
+					       sta, dir);
+}
+#endif
+
 static inline __must_check
 int drv_sta_state(struct ieee80211_local *local,
 		  struct ieee80211_sub_if_data *sdata,
@@ -704,17 +736,17 @@ static inline int drv_get_antenna(struct ieee80211_local *local,
 }
 
 static inline int drv_remain_on_channel(struct ieee80211_local *local,
+					struct ieee80211_sub_if_data *sdata,
 					struct ieee80211_channel *chan,
-					enum nl80211_channel_type chantype,
 					unsigned int duration)
 {
 	int ret;
 
 	might_sleep();
 
-	trace_drv_remain_on_channel(local, chan, chantype, duration);
-	ret = local->ops->remain_on_channel(&local->hw, chan, chantype,
-					    duration);
+	trace_drv_remain_on_channel(local, sdata, chan, duration);
+	ret = local->ops->remain_on_channel(&local->hw, &sdata->vif,
+					    chan, duration);
 	trace_drv_return_int(local, ret);
 
 	return ret;
@@ -871,4 +903,104 @@ static inline void drv_mgd_prepare_tx(struct ieee80211_local *local,
 		local->ops->mgd_prepare_tx(&local->hw, &sdata->vif);
 	trace_drv_return_void(local);
 }
+
+static inline int drv_add_chanctx(struct ieee80211_local *local,
+				  struct ieee80211_chanctx *ctx)
+{
+	int ret = -EOPNOTSUPP;
+
+	trace_drv_add_chanctx(local, ctx);
+	if (local->ops->add_chanctx)
+		ret = local->ops->add_chanctx(&local->hw, &ctx->conf);
+	trace_drv_return_int(local, ret);
+
+	return ret;
+}
+
+static inline void drv_remove_chanctx(struct ieee80211_local *local,
+				      struct ieee80211_chanctx *ctx)
+{
+	trace_drv_remove_chanctx(local, ctx);
+	if (local->ops->remove_chanctx)
+		local->ops->remove_chanctx(&local->hw, &ctx->conf);
+	trace_drv_return_void(local);
+}
+
+static inline void drv_change_chanctx(struct ieee80211_local *local,
+				      struct ieee80211_chanctx *ctx,
+				      u32 changed)
+{
+	trace_drv_change_chanctx(local, ctx, changed);
+	if (local->ops->change_chanctx)
+		local->ops->change_chanctx(&local->hw, &ctx->conf, changed);
+	trace_drv_return_void(local);
+}
+
+static inline int drv_assign_vif_chanctx(struct ieee80211_local *local,
+					 struct ieee80211_sub_if_data *sdata,
+					 struct ieee80211_chanctx *ctx)
+{
+	int ret = 0;
+
+	check_sdata_in_driver(sdata);
+
+	trace_drv_assign_vif_chanctx(local, sdata, ctx);
+	if (local->ops->assign_vif_chanctx)
+		ret = local->ops->assign_vif_chanctx(&local->hw,
+						     &sdata->vif,
+						     &ctx->conf);
+	trace_drv_return_int(local, ret);
+
+	return ret;
+}
+
+static inline void drv_unassign_vif_chanctx(struct ieee80211_local *local,
+					    struct ieee80211_sub_if_data *sdata,
+					    struct ieee80211_chanctx *ctx)
+{
+	check_sdata_in_driver(sdata);
+
+	trace_drv_unassign_vif_chanctx(local, sdata, ctx);
+	if (local->ops->unassign_vif_chanctx)
+		local->ops->unassign_vif_chanctx(&local->hw,
+						 &sdata->vif,
+						 &ctx->conf);
+	trace_drv_return_void(local);
+}
+
+static inline int drv_start_ap(struct ieee80211_local *local,
+			       struct ieee80211_sub_if_data *sdata)
+{
+	int ret = 0;
+
+	check_sdata_in_driver(sdata);
+
+	trace_drv_start_ap(local, sdata, &sdata->vif.bss_conf);
+	if (local->ops->start_ap)
+		ret = local->ops->start_ap(&local->hw, &sdata->vif);
+	trace_drv_return_int(local, ret);
+	return ret;
+}
+
+static inline void drv_stop_ap(struct ieee80211_local *local,
+			       struct ieee80211_sub_if_data *sdata)
+{
+	check_sdata_in_driver(sdata);
+
+	trace_drv_stop_ap(local, sdata);
+	if (local->ops->stop_ap)
+		local->ops->stop_ap(&local->hw, &sdata->vif);
+	trace_drv_return_void(local);
+}
+
+static inline void drv_restart_complete(struct ieee80211_local *local)
+{
+	might_sleep();
+
+	trace_drv_restart_complete(local);
+	if (local->ops->restart_complete)
+		local->ops->restart_complete(&local->hw);
+	trace_drv_return_void(local);
+}
+
 #endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 4b4538d..a71d891 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -185,7 +185,7 @@ void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx)
 
 	cancel_work_sync(&sta->ampdu_mlme.work);
 
-	for (i = 0; i <  STA_TID_NUM; i++) {
+	for (i = 0; i <  IEEE80211_NUM_TIDS; i++) {
 		__ieee80211_stop_tx_ba_session(sta, i, WLAN_BACK_INITIATOR, tx);
 		__ieee80211_stop_rx_ba_session(sta, i, WLAN_BACK_RECIPIENT,
 					       WLAN_REASON_QSTA_LEAVE_QBSS, tx);
@@ -209,7 +209,7 @@ void ieee80211_ba_session_work(struct work_struct *work)
 		return;
 
 	mutex_lock(&sta->ampdu_mlme.mtx);
-	for (tid = 0; tid < STA_TID_NUM; tid++) {
+	for (tid = 0; tid < IEEE80211_NUM_TIDS; tid++) {
 		if (test_and_clear_bit(tid, sta->ampdu_mlme.tid_rx_timer_expired))
 			___ieee80211_stop_rx_ba_session(
 				sta, tid, WLAN_BACK_RECIPIENT,
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index c21e33d..8881fc7 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -26,7 +26,6 @@
 #include "rate.h"
 
 #define IEEE80211_SCAN_INTERVAL (2 * HZ)
-#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
 #define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ)
 
 #define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
@@ -39,7 +38,8 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 				      const u8 *bssid, const int beacon_int,
 				      struct ieee80211_channel *chan,
 				      const u32 basic_rates,
-				      const u16 capability, u64 tsf)
+				      const u16 capability, u64 tsf,
+				      bool creator)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
@@ -51,7 +51,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	struct cfg80211_bss *bss;
 	u32 bss_change;
 	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
-	enum nl80211_channel_type channel_type;
+	struct cfg80211_chan_def chandef;
 
 	lockdep_assert_held(&ifibss->mtx);
 
@@ -72,25 +72,29 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	/* if merging, indicate to driver that we leave the old IBSS */
 	if (sdata->vif.bss_conf.ibss_joined) {
 		sdata->vif.bss_conf.ibss_joined = false;
+		sdata->vif.bss_conf.ibss_creator = false;
 		netif_carrier_off(sdata->dev);
 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IBSS);
 	}
 
-	memcpy(ifibss->bssid, bssid, ETH_ALEN);
-
 	sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
 
-	local->oper_channel = chan;
-	channel_type = ifibss->channel_type;
-	if (!cfg80211_can_beacon_sec_chan(local->hw.wiphy, chan, channel_type))
-		channel_type = NL80211_CHAN_HT20;
-	if (!ieee80211_set_channel_type(local, sdata, channel_type)) {
-		/* can only fail due to HT40+/- mismatch */
-		channel_type = NL80211_CHAN_HT20;
-		WARN_ON(!ieee80211_set_channel_type(local, sdata,
-						    NL80211_CHAN_HT20));
+	cfg80211_chandef_create(&chandef, chan, ifibss->channel_type);
+	if (!cfg80211_reg_can_beacon(local->hw.wiphy, &chandef)) {
+		chandef.width = NL80211_CHAN_WIDTH_20;
+		chandef.center_freq1 = chan->center_freq;
+	}
+
+	ieee80211_vif_release_channel(sdata);
+	if (ieee80211_vif_use_channel(sdata, &chandef,
+				      ifibss->fixed_channel ?
+					IEEE80211_CHANCTX_SHARED :
+					IEEE80211_CHANCTX_EXCLUSIVE)) {
+		sdata_info(sdata, "Failed to join IBSS, no channel context\n");
+		return;
 	}
-	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+
+	memcpy(ifibss->bssid, bssid, ETH_ALEN);
 
 	sband = local->hw.wiphy->bands[chan->band];
 
@@ -156,7 +160,8 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 		       ifibss->ie, ifibss->ie_len);
 
 	/* add HT capability and information IEs */
-	if (channel_type && sband->ht_cap.ht_supported) {
+	if (chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
+	    sband->ht_cap.ht_supported) {
 		pos = skb_put(skb, 4 +
 				   sizeof(struct ieee80211_ht_cap) +
 				   sizeof(struct ieee80211_ht_operation));
@@ -168,7 +173,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 		 * keep them at 0
 		 */
 		pos = ieee80211_ie_build_ht_oper(pos, &sband->ht_cap,
-						 chan, channel_type, 0);
+						 &chandef, 0);
 	}
 
 	if (local->hw.queues >= IEEE80211_NUM_ACS) {
@@ -196,7 +201,22 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	bss_change |= BSS_CHANGED_BASIC_RATES;
 	bss_change |= BSS_CHANGED_HT;
 	bss_change |= BSS_CHANGED_IBSS;
+
+	/*
+	 * In 5 GHz/802.11a, we can always use short slot time.
+	 * (IEEE 802.11-2012 18.3.8.7)
+	 *
+	 * In 2.4GHz, we must always use long slots in IBSS for compatibility
+	 * reasons.
+	 * (IEEE 802.11-2012 19.4.5)
+	 *
+	 * HT follows these specifications (IEEE 802.11-2012 20.3.18)
+	 */
+	sdata->vif.bss_conf.use_short_slot = chan->band == IEEE80211_BAND_5GHZ;
+	bss_change |= BSS_CHANGED_ERP_SLOT;
+
 	sdata->vif.bss_conf.ibss_joined = true;
+	sdata->vif.bss_conf.ibss_creator = creator;
 	ieee80211_bss_info_change_notify(sdata, bss_change);
 
 	ieee80211_sta_def_wmm_params(sdata, sband->n_bitrates, supp_rates);
@@ -249,7 +269,8 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 				  cbss->channel,
 				  basic_rates,
 				  cbss->capability,
-				  cbss->tsf);
+				  cbss->tsf,
+				  false);
 }
 
 static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta,
@@ -279,7 +300,7 @@ static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta,
 		ibss_dbg(sdata,
 			 "TX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=1)\n",
 			 sdata->vif.addr, addr, sdata->u.ibss.bssid);
-		ieee80211_send_auth(sdata, 1, WLAN_AUTH_OPEN, NULL, 0,
+		ieee80211_send_auth(sdata, 1, WLAN_AUTH_OPEN, 0, NULL, 0,
 				    addr, sdata->u.ibss.bssid, NULL, 0, 0);
 	}
 	return sta;
@@ -294,7 +315,8 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
-	int band = local->oper_channel->band;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	int band;
 
 	/*
 	 * XXX: Consider removing the least recently used entry and
@@ -317,6 +339,13 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 		return NULL;
 	}
 
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (WARN_ON_ONCE(!chanctx_conf))
+		return NULL;
+	band = chanctx_conf->def.chan->band;
+	rcu_read_unlock();
+
 	sta = sta_info_alloc(sdata, addr, GFP_KERNEL);
 	if (!sta) {
 		rcu_read_lock();
@@ -362,11 +391,13 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
 	auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
 	auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
 
-	if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1)
-		return;
 	ibss_dbg(sdata,
 		 "RX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=%d)\n",
 		 mgmt->sa, mgmt->da, mgmt->bssid, auth_transaction);
+
+	if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1)
+		return;
+
 	sta_info_destroy_addr(sdata, mgmt->sa);
 	sta = ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, 0, false);
 	rcu_read_unlock();
@@ -389,7 +420,7 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
 	 * However, try to reply to authentication attempts if someone
 	 * has actually implemented this.
 	 */
-	ieee80211_send_auth(sdata, 2, WLAN_AUTH_OPEN, NULL, 0,
+	ieee80211_send_auth(sdata, 2, WLAN_AUTH_OPEN, 0, NULL, 0,
 			    mgmt->sa, sdata->u.ibss.bssid, NULL, 0, 0);
 }
 
@@ -461,9 +492,11 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 		    sdata->u.ibss.channel_type != NL80211_CHAN_NO_HT) {
 			/* we both use HT */
 			struct ieee80211_sta_ht_cap sta_ht_cap_new;
-			enum nl80211_channel_type channel_type =
-				ieee80211_ht_oper_to_channel_type(
-							elems->ht_operation);
+			struct cfg80211_chan_def chandef;
+
+			ieee80211_ht_oper_to_chandef(channel,
+						     elems->ht_operation,
+						     &chandef);
 
 			ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
 							  elems->ht_cap_elem,
@@ -473,9 +506,9 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 			 * fall back to HT20 if we don't use or use
 			 * the other extension channel
 			 */
-			if (!(channel_type == NL80211_CHAN_HT40MINUS ||
-			      channel_type == NL80211_CHAN_HT40PLUS) ||
-			    channel_type != sdata->u.ibss.channel_type)
+			if (chandef.width != NL80211_CHAN_WIDTH_40 ||
+			    cfg80211_get_chandef_type(&chandef) !=
+						sdata->u.ibss.channel_type)
 				sta_ht_cap_new.cap &=
 					~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 
@@ -517,7 +550,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 		goto put_bss;
 
 	/* different channel */
-	if (cbss->channel != local->oper_channel)
+	if (sdata->u.ibss.fixed_channel &&
+	    sdata->u.ibss.channel != cbss->channel)
 		goto put_bss;
 
 	/* different SSID */
@@ -530,30 +564,11 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 	if (ether_addr_equal(cbss->bssid, sdata->u.ibss.bssid))
 		goto put_bss;
 
-	if (rx_status->flag & RX_FLAG_MACTIME_MPDU) {
-		/*
-		 * For correct IBSS merging we need mactime; since mactime is
-		 * defined as the time the first data symbol of the frame hits
-		 * the PHY, and the timestamp of the beacon is defined as "the
-		 * time that the data symbol containing the first bit of the
-		 * timestamp is transmitted to the PHY plus the transmitting
-		 * STA's delays through its local PHY from the MAC-PHY
-		 * interface to its interface with the WM" (802.11 11.1.2)
-		 * - equals the time this bit arrives at the receiver - we have
-		 * to take into account the offset between the two.
-		 *
-		 * E.g. at 1 MBit that means mactime is 192 usec earlier
-		 * (=24 bytes * 8 usecs/byte) than the beacon timestamp.
-		 */
-		int rate;
-
-		if (rx_status->flag & RX_FLAG_HT)
-			rate = 65; /* TODO: HT rates */
-		else
-			rate = local->hw.wiphy->bands[band]->
-				bitrates[rx_status->rate_idx].bitrate;
-
-		rx_timestamp = rx_status->mactime + (24 * 8 * 10 / rate);
+	if (ieee80211_have_rx_timestamp(rx_status)) {
+		/* time when timestamp field was received */
+		rx_timestamp =
+			ieee80211_calculate_rx_timestamp(local, rx_status,
+							 len + FCS_LEN, 24);
 	} else {
 		/*
 		 * second best option: get current TSF
@@ -592,7 +607,8 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
-	int band = local->oper_channel->band;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	int band;
 
 	/*
 	 * XXX: Consider removing the least recently used entry and
@@ -610,6 +626,15 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 	if (!ether_addr_equal(bssid, sdata->u.ibss.bssid))
 		return;
 
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (WARN_ON_ONCE(!chanctx_conf)) {
+		rcu_read_unlock();
+		return;
+	}
+	band = chanctx_conf->def.chan->band;
+	rcu_read_unlock();
+
 	sta = sta_info_alloc(sdata, addr, GFP_ATOMIC);
 	if (!sta)
 		return;
@@ -715,7 +740,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 
 	__ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int,
 				  ifibss->channel, ifibss->basic_rates,
-				  capability, 0);
+				  capability, 0, true);
 }
 
 /*
@@ -784,18 +809,8 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 		int interval = IEEE80211_SCAN_INTERVAL;
 
 		if (time_after(jiffies, ifibss->ibss_join_req +
-			       IEEE80211_IBSS_JOIN_TIMEOUT)) {
-			if (!(local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS)) {
-				ieee80211_sta_create_ibss(sdata);
-				return;
-			}
-			sdata_info(sdata, "IBSS not allowed on %d MHz\n",
-				   local->oper_channel->center_freq);
-
-			/* No IBSS found - decrease scan interval and continue
-			 * scanning. */
-			interval = IEEE80211_SCAN_INTERVAL_SLOW;
-		}
+			       IEEE80211_IBSS_JOIN_TIMEOUT))
+			ieee80211_sta_create_ibss(sdata);
 
 		mod_timer(&ifibss->timer,
 			  round_jiffies(jiffies + interval));
@@ -1082,21 +1097,11 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 
 	sdata->vif.bss_conf.beacon_int = params->beacon_interval;
 
-	sdata->u.ibss.channel = params->channel;
-	sdata->u.ibss.channel_type = params->channel_type;
+	sdata->u.ibss.channel = params->chandef.chan;
+	sdata->u.ibss.channel_type =
+		cfg80211_get_chandef_type(&params->chandef);
 	sdata->u.ibss.fixed_channel = params->channel_fixed;
 
-	/* fix ourselves to that channel now already */
-	if (params->channel_fixed) {
-		sdata->local->oper_channel = params->channel;
-		if (!ieee80211_set_channel_type(sdata->local, sdata,
-					       params->channel_type)) {
-			mutex_unlock(&sdata->u.ibss.mtx);
-			kfree_skb(skb);
-			return -EINVAL;
-		}
-	}
-
 	if (params->ie) {
 		sdata->u.ibss.ie = kmemdup(params->ie, params->ie_len,
 					   GFP_KERNEL);
@@ -1134,6 +1139,9 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 	changed |= BSS_CHANGED_HT;
 	ieee80211_bss_info_change_notify(sdata, changed);
 
+	sdata->smps_mode = IEEE80211_SMPS_OFF;
+	sdata->needed_rx_chains = sdata->local->rx_chains;
+
 	ieee80211_queue_work(&sdata->local->hw, &sdata->work);
 
 	return 0;
@@ -1197,6 +1205,7 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 					lockdep_is_held(&sdata->u.ibss.mtx));
 	RCU_INIT_POINTER(sdata->u.ibss.presp, NULL);
 	sdata->vif.bss_conf.ibss_joined = false;
+	sdata->vif.bss_conf.ibss_creator = false;
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 						BSS_CHANGED_IBSS);
 	synchronize_rcu();
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 156e583..42d0d02 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -56,6 +56,9 @@ struct ieee80211_local;
 #define TU_TO_JIFFIES(x)	(usecs_to_jiffies((x) * 1024))
 #define TU_TO_EXP_TIME(x)	(jiffies + TU_TO_JIFFIES(x))
 
+/* power level hasn't been configured (or set to automatic) */
+#define IEEE80211_UNSET_POWER_LEVEL	INT_MIN
+
 /*
  * Some APs experience problems when working with U-APSD. Decrease the
  * probability of that happening by using legacy mode for all ACs but VO.
@@ -280,23 +283,27 @@ struct probe_resp {
 	u8 data[0];
 };
 
-struct ieee80211_if_ap {
-	struct beacon_data __rcu *beacon;
-	struct probe_resp __rcu *probe_resp;
-
-	struct list_head vlans;
-
+struct ps_data {
 	/* yes, this looks ugly, but guarantees that we can later use
 	 * bitmap_empty :)
 	 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
 	u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
-	struct sk_buff_head ps_bc_buf;
+	struct sk_buff_head bc_buf;
 	atomic_t num_sta_ps; /* number of stations in PS mode */
-	atomic_t num_mcast_sta; /* number of stations receiving multicast */
 	int dtim_count;
 	bool dtim_bc_mc;
 };
 
+struct ieee80211_if_ap {
+	struct beacon_data __rcu *beacon;
+	struct probe_resp __rcu *probe_resp;
+
+	struct list_head vlans;
+
+	struct ps_data ps;
+	atomic_t num_mcast_sta; /* number of stations receiving multicast */
+};
+
 struct ieee80211_if_wds {
 	struct sta_info *sta;
 	u8 remote_addr[ETH_ALEN];
@@ -316,7 +323,6 @@ struct mesh_stats {
 	__u32 dropped_frames_ttl;	/* Not transmitted since mesh_ttl == 0*/
 	__u32 dropped_frames_no_route;	/* Not transmitted, no route found */
 	__u32 dropped_frames_congestion;/* Not forwarded due to congestion */
-	atomic_t estab_plinks;
 };
 
 #define PREQ_Q_F_START		0x1
@@ -342,7 +348,6 @@ struct ieee80211_roc_work {
 	struct ieee80211_sub_if_data *sdata;
 
 	struct ieee80211_channel *chan;
-	enum nl80211_channel_type chan_type;
 
 	bool started, abort, hw_begun, notified;
 
@@ -350,7 +355,7 @@ struct ieee80211_roc_work {
 
 	u32 duration, req_duration;
 	struct sk_buff *frame;
-	u64 mgmt_tx_cookie;
+	u64 cookie, mgmt_tx_cookie;
 };
 
 /* flags used in struct ieee80211_if_managed.flags */
@@ -358,7 +363,7 @@ enum ieee80211_sta_flags {
 	IEEE80211_STA_BEACON_POLL	= BIT(0),
 	IEEE80211_STA_CONNECTION_POLL	= BIT(1),
 	IEEE80211_STA_CONTROL_PORT	= BIT(2),
-	IEEE80211_STA_DISABLE_11N	= BIT(4),
+	IEEE80211_STA_DISABLE_HT	= BIT(4),
 	IEEE80211_STA_CSA_RECEIVED	= BIT(5),
 	IEEE80211_STA_MFP_ENABLED	= BIT(6),
 	IEEE80211_STA_UAPSD_ENABLED	= BIT(7),
@@ -366,6 +371,8 @@ enum ieee80211_sta_flags {
 	IEEE80211_STA_RESET_SIGNAL_AVE	= BIT(9),
 	IEEE80211_STA_DISABLE_40MHZ	= BIT(10),
 	IEEE80211_STA_DISABLE_VHT	= BIT(11),
+	IEEE80211_STA_DISABLE_80P80MHZ	= BIT(12),
+	IEEE80211_STA_DISABLE_160MHZ	= BIT(13),
 };
 
 struct ieee80211_mgd_auth_data {
@@ -378,8 +385,9 @@ struct ieee80211_mgd_auth_data {
 	u8 key_len, key_idx;
 	bool done;
 
-	size_t ie_len;
-	u8 ie[];
+	u16 sae_trans, sae_status;
+	size_t data_len;
+	u8 data[];
 };
 
 struct ieee80211_mgd_assoc_data {
@@ -433,7 +441,6 @@ struct ieee80211_if_managed {
 	bool powersave; /* powersave requested for this iface */
 	bool broken_ap; /* AP is broken -- turn off powersave */
 	enum ieee80211_smps_mode req_smps, /* requested smps mode */
-				 ap_smps, /* smps mode AP thinks we're in */
 				 driver_smps_mode; /* smps mode request */
 
 	struct work_struct request_smps_work;
@@ -467,6 +474,8 @@ struct ieee80211_if_managed {
 
 	u8 use_4addr;
 
+	u8 p2p_noa_index;
+
 	/* Signal strength from the last Beacon frame in the current BSS. */
 	int last_beacon_signal;
 
@@ -599,6 +608,7 @@ struct ieee80211_if_mesh {
 	int preq_queue_len;
 	struct mesh_stats mshstats;
 	struct mesh_config mshcfg;
+	atomic_t estab_plinks;
 	u32 mesh_seqnum;
 	bool accepting_plinks;
 	int num_gates;
@@ -610,7 +620,7 @@ struct ieee80211_if_mesh {
 		IEEE80211_MESH_SEC_SECURED = 0x2,
 	} security;
 	/* Extensible Synchronization Framework */
-	struct ieee80211_mesh_sync_ops *sync_ops;
+	const struct ieee80211_mesh_sync_ops *sync_ops;
 	s64 sync_offset_clockdrift_max;
 	spinlock_t sync_offset_lock;
 	bool adjusting_tbtt;
@@ -658,6 +668,30 @@ enum ieee80211_sdata_state_bits {
 	SDATA_STATE_OFFCHANNEL,
 };
 
+/**
+ * enum ieee80211_chanctx_mode - channel context configuration mode
+ *
+ * @IEEE80211_CHANCTX_SHARED: channel context may be used by
+ *	multiple interfaces
+ * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
+ *	only by a single interface. This can be used for example for
+ *	non-fixed channel IBSS.
+ */
+enum ieee80211_chanctx_mode {
+	IEEE80211_CHANCTX_SHARED,
+	IEEE80211_CHANCTX_EXCLUSIVE
+};
+
+struct ieee80211_chanctx {
+	struct list_head list;
+	struct rcu_head rcu_head;
+
+	enum ieee80211_chanctx_mode mode;
+	int refcount;
+
+	struct ieee80211_chanctx_conf conf;
+};
+
 struct ieee80211_sub_if_data {
 	struct list_head list;
 
@@ -704,11 +738,20 @@ struct ieee80211_sub_if_data {
 
 	struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
 
+	/* used to reconfigure hardware SM PS */
+	struct work_struct recalc_smps;
+
 	struct work_struct work;
 	struct sk_buff_head skb_queue;
 
 	bool arp_filter_state;
 
+	u8 needed_rx_chains;
+	enum ieee80211_smps_mode smps_mode;
+
+	int user_power_level; /* in dBm */
+	int ap_power_level; /* in dBm */
+
 	/*
 	 * AP this belongs to: self in AP mode and
 	 * corresponding AP in VLAN mode, NULL for
@@ -749,6 +792,21 @@ struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
 	return container_of(p, struct ieee80211_sub_if_data, vif);
 }
 
+static inline enum ieee80211_band
+ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
+{
+	enum ieee80211_band band = IEEE80211_BAND_2GHZ;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (!WARN_ON(!chanctx_conf))
+		band = chanctx_conf->def.chan->band;
+	rcu_read_unlock();
+
+	return band;
+}
+
 enum sdata_queue_type {
 	IEEE80211_SDATA_QUEUE_TYPE_FRAME	= 0,
 	IEEE80211_SDATA_QUEUE_AGG_START		= 1,
@@ -821,6 +879,7 @@ enum {
  * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
  *	send out data
  * @SCAN_RESUME: Resume the scan and scan the next channel
+ * @SCAN_ABORT: Abort the scan and go back to operating channel
  */
 enum mac80211_scan_state {
 	SCAN_DECISION,
@@ -828,6 +887,7 @@ enum mac80211_scan_state {
 	SCAN_SEND_PROBE,
 	SCAN_SUSPEND,
 	SCAN_RESUME,
+	SCAN_ABORT,
 };
 
 struct ieee80211_local {
@@ -858,15 +918,14 @@ struct ieee80211_local {
 
 	bool wiphy_ciphers_allocated;
 
+	bool use_chanctx;
+
 	/* protects the aggregated multicast list and filter calls */
 	spinlock_t filter_lock;
 
 	/* used for uploading changed mc list */
 	struct work_struct reconfig_filter;
 
-	/* used to reconfigure hardware SM PS */
-	struct work_struct recalc_smps;
-
 	/* aggregated multicast list */
 	struct netdev_hw_addr_list mc_list;
 
@@ -903,6 +962,9 @@ struct ieee80211_local {
 	/* wowlan is enabled -- don't reconfig on resume */
 	bool wowlan;
 
+	/* number of RX chains the hardware has */
+	u8 rx_chains;
+
 	int tx_headroom; /* required headroom for hardware/radiotap */
 
 	/* Tasklet and skb queue to process calls from IRQ mode. All frames
@@ -972,6 +1034,7 @@ struct ieee80211_local {
 	enum ieee80211_band hw_scan_band;
 	int scan_channel_idx;
 	int scan_ies_len;
+	int hw_scan_ies_bufsize;
 
 	struct work_struct sched_scan_stopped_work;
 	struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
@@ -980,12 +1043,17 @@ struct ieee80211_local {
 	enum mac80211_scan_state next_scan_state;
 	struct delayed_work scan_work;
 	struct ieee80211_sub_if_data __rcu *scan_sdata;
+	struct ieee80211_channel *csa_channel;
+	/* For backward compatibility only -- do not use */
+	struct ieee80211_channel *_oper_channel;
 	enum nl80211_channel_type _oper_channel_type;
-	struct ieee80211_channel *oper_channel, *csa_channel;
 
 	/* Temporary remain-on-channel for off-channel operations */
 	struct ieee80211_channel *tmp_channel;
-	enum nl80211_channel_type tmp_channel_type;
+
+	/* channel contexts */
+	struct list_head chanctx_list;
+	struct mutex chanctx_mtx;
 
 	/* SNMP counters */
 	/* dot11CountersTable */
@@ -1058,8 +1126,7 @@ struct ieee80211_local {
 	int dynamic_ps_user_timeout;
 	bool disable_dynamic_ps;
 
-	int user_power_level; /* in dBm */
-	int ap_power_level; /* in dBm */
+	int user_power_level; /* in dBm, for all interfaces */
 
 	enum ieee80211_smps_mode smps_mode;
 
@@ -1078,6 +1145,7 @@ struct ieee80211_local {
 	struct list_head roc_list;
 	struct work_struct hw_roc_start, hw_roc_done;
 	unsigned long hw_roc_start_time;
+	u64 roc_cookie_counter;
 
 	struct idr ack_status_frames;
 	spinlock_t ack_status_lock;
@@ -1091,6 +1159,7 @@ struct ieee80211_local {
 
 	/* virtual monitor interface */
 	struct ieee80211_sub_if_data __rcu *monitor_sdata;
+	struct cfg80211_chan_def monitor_chandef;
 };
 
 static inline struct ieee80211_sub_if_data *
@@ -1133,6 +1202,8 @@ struct ieee802_11_elems {
 	u8 *wmm_param;
 	struct ieee80211_ht_cap *ht_cap_elem;
 	struct ieee80211_ht_operation *ht_operation;
+	struct ieee80211_vht_cap *vht_cap_elem;
+	struct ieee80211_vht_operation *vht_operation;
 	struct ieee80211_meshconf_ie *mesh_config;
 	u8 *mesh_id;
 	u8 *peering;
@@ -1188,7 +1259,18 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
 	       is_broadcast_ether_addr(raddr);
 }
 
+static inline bool
+ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
+{
+	WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
+		     status->flag & RX_FLAG_MACTIME_END);
+	return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
+}
 
+u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
+				     struct ieee80211_rx_status *status,
+				     unsigned int mpdu_len,
+				     unsigned int mpdu_offset);
 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
@@ -1302,6 +1384,9 @@ void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
 
+bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
+void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
+
 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
 {
 	return test_bit(SDATA_STATE_RUNNING, &sdata->state);
@@ -1361,6 +1446,13 @@ void ieee80211_ba_session_work(struct work_struct *work);
 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
 
+u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
+
+/* VHT */
+void ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
+					 struct ieee80211_supported_band *sband,
+					 struct ieee80211_vht_cap *vht_cap_ie,
+					 struct ieee80211_sta_vht_cap *vht_cap);
 /* Spectrum management */
 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
 				       struct ieee80211_mgmt *mgmt,
@@ -1395,11 +1487,42 @@ void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int ke
 				     gfp_t gfp);
 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
 			       bool bss_notify);
-void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
+void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+		    enum ieee80211_band band);
+
+void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
+				 struct sk_buff *skb, int tid,
+				 enum ieee80211_band band);
 
-void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
-			  struct sk_buff *skb, int tid);
-static void inline ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
+static inline void
+ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
+			  struct sk_buff *skb, int tid,
+			  enum ieee80211_band band)
+{
+	rcu_read_lock();
+	__ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
+	rcu_read_unlock();
+}
+
+static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
+					struct sk_buff *skb, int tid)
+{
+	struct ieee80211_chanctx_conf *chanctx_conf;
+
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (WARN_ON(!chanctx_conf)) {
+		rcu_read_unlock();
+		kfree_skb(skb);
+		return;
+	}
+
+	__ieee80211_tx_skb_tid_band(sdata, skb, tid,
+				    chanctx_conf->def.chan->band);
+	rcu_read_unlock();
+}
+
+static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
 				    struct sk_buff *skb)
 {
 	/* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
@@ -1446,14 +1569,14 @@ static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
 }
 
 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
-			 u16 transaction, u16 auth_alg,
+			 u16 transaction, u16 auth_alg, u16 status,
 			 u8 *extra, size_t extra_len, const u8 *bssid,
 			 const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 				    const u8 *bssid, u16 stype, u16 reason,
 				    bool send_frame, u8 *frame_buf);
 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
-			     const u8 *ie, size_t ie_len,
+			     size_t buffer_len, const u8 *ie, size_t ie_len,
 			     enum ieee80211_band band, u32 rate_mask,
 			     u8 channel);
 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
@@ -1466,7 +1589,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 			      const u8 *ssid, size_t ssid_len,
 			      const u8 *ie, size_t ie_len,
 			      u32 ratemask, bool directed, bool no_cck,
-			      struct ieee80211_channel *channel);
+			      struct ieee80211_channel *channel, bool scan);
 
 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 				  const size_t supp_rates_len,
@@ -1476,7 +1599,7 @@ u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
 			    enum ieee80211_band band, u32 *basic_rates);
 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
 			     enum ieee80211_smps_mode smps_mode);
-void ieee80211_recalc_smps(struct ieee80211_local *local);
+void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
 
 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
 			  const u8 *ids, int n_ids, size_t offset);
@@ -1484,8 +1607,7 @@ size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
 			      u16 cap);
 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
-			       struct ieee80211_channel *channel,
-			       enum nl80211_channel_type channel_type,
+			       const struct cfg80211_chan_def *chandef,
 			       u16 prot_mode);
 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
 			       u32 cap);
@@ -1497,20 +1619,18 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
 				enum ieee80211_band band);
 
 /* channel management */
-enum ieee80211_chan_mode {
-	CHAN_MODE_UNDEFINED,
-	CHAN_MODE_HOPPING,
-	CHAN_MODE_FIXED,
-};
-
-enum ieee80211_chan_mode
-ieee80211_get_channel_mode(struct ieee80211_local *local,
-			   struct ieee80211_sub_if_data *ignore);
-bool ieee80211_set_channel_type(struct ieee80211_local *local,
-				struct ieee80211_sub_if_data *sdata,
-				enum nl80211_channel_type chantype);
-enum nl80211_channel_type
-ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper);
+void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
+				  struct ieee80211_ht_operation *ht_oper,
+				  struct cfg80211_chan_def *chandef);
+
+int __must_check
+ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
+			  const struct cfg80211_chan_def *chandef,
+			  enum ieee80211_chanctx_mode mode);
+void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
+
+void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
+				   struct ieee80211_chanctx *chanctx);
 
 #ifdef CONFIG_MAC80211_NOINLINE
 #define debug_noinline noinline
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 7de7717..09a80b5 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -42,6 +42,41 @@
  * by either the RTNL, the iflist_mtx or RCU.
  */
 
+bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	int power;
+
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (!chanctx_conf) {
+		rcu_read_unlock();
+		return false;
+	}
+
+	power = chanctx_conf->def.chan->max_power;
+	rcu_read_unlock();
+
+	if (sdata->user_power_level != IEEE80211_UNSET_POWER_LEVEL)
+		power = min(power, sdata->user_power_level);
+
+	if (sdata->ap_power_level != IEEE80211_UNSET_POWER_LEVEL)
+		power = min(power, sdata->ap_power_level);
+
+	if (power != sdata->vif.bss_conf.txpower) {
+		sdata->vif.bss_conf.txpower = power;
+		ieee80211_hw_config(sdata->local, 0);
+		return true;
+	}
+
+	return false;
+}
+
+void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata)
+{
+	if (__ieee80211_recalc_txpower(sdata))
+		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_TXPOWER);
+}
 
 static u32 ieee80211_idle_off(struct ieee80211_local *local,
 			      const char *reason)
@@ -188,6 +223,47 @@ static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
 	return 0;
 }
 
+static int ieee80211_verify_mac(struct ieee80211_local *local, u8 *addr)
+{
+	struct ieee80211_sub_if_data *sdata;
+	u64 new, mask, tmp;
+	u8 *m;
+	int ret = 0;
+
+	if (is_zero_ether_addr(local->hw.wiphy->addr_mask))
+		return 0;
+
+	m = addr;
+	new =	((u64)m[0] << 5*8) | ((u64)m[1] << 4*8) |
+		((u64)m[2] << 3*8) | ((u64)m[3] << 2*8) |
+		((u64)m[4] << 1*8) | ((u64)m[5] << 0*8);
+
+	m = local->hw.wiphy->addr_mask;
+	mask =	((u64)m[0] << 5*8) | ((u64)m[1] << 4*8) |
+		((u64)m[2] << 3*8) | ((u64)m[3] << 2*8) |
+		((u64)m[4] << 1*8) | ((u64)m[5] << 0*8);
+
+
+	mutex_lock(&local->iflist_mtx);
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
+			continue;
+
+		m = sdata->vif.addr;
+		tmp =	((u64)m[0] << 5*8) | ((u64)m[1] << 4*8) |
+			((u64)m[2] << 3*8) | ((u64)m[3] << 2*8) |
+			((u64)m[4] << 1*8) | ((u64)m[5] << 0*8);
+
+		if ((new & ~mask) != (tmp & ~mask)) {
+			ret = -EINVAL;
+			break;
+		}
+	}
+	mutex_unlock(&local->iflist_mtx);
+
+	return ret;
+}
+
 static int ieee80211_change_mac(struct net_device *dev, void *addr)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
@@ -197,6 +273,10 @@ static int ieee80211_change_mac(struct net_device *dev, void *addr)
 	if (ieee80211_sdata_running(sdata))
 		return -EBUSY;
 
+	ret = ieee80211_verify_mac(sdata->local, sa->sa_data);
+	if (ret)
+		return ret;
+
 	ret = eth_mac_addr(dev, sa);
 
 	if (ret == 0)
@@ -380,6 +460,14 @@ static int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
 		goto out_unlock;
 	}
 
+	ret = ieee80211_vif_use_channel(sdata, &local->monitor_chandef,
+					IEEE80211_CHANCTX_EXCLUSIVE);
+	if (ret) {
+		drv_remove_interface(local, sdata);
+		kfree(sdata);
+		goto out_unlock;
+	}
+
 	rcu_assign_pointer(local->monitor_sdata, sdata);
  out_unlock:
 	mutex_unlock(&local->iflist_mtx);
@@ -403,6 +491,8 @@ static void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
 	rcu_assign_pointer(local->monitor_sdata, NULL);
 	synchronize_net();
 
+	ieee80211_vif_release_channel(sdata);
+
 	drv_remove_interface(local, sdata);
 
 	kfree(sdata);
@@ -665,7 +755,6 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 	struct sk_buff *skb, *tmp;
 	u32 hw_reconf_flags = 0;
 	int i;
-	enum nl80211_channel_type orig_ct;
 
 	clear_bit(SDATA_STATE_RUNNING, &sdata->state);
 
@@ -729,34 +818,17 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 	del_timer_sync(&local->dynamic_ps_timer);
 	cancel_work_sync(&local->dynamic_ps_enable_work);
 
+	cancel_work_sync(&sdata->recalc_smps);
+
 	/* APs need special treatment */
 	if (sdata->vif.type == NL80211_IFTYPE_AP) {
 		struct ieee80211_sub_if_data *vlan, *tmpsdata;
-		struct beacon_data *old_beacon =
-			rtnl_dereference(sdata->u.ap.beacon);
-		struct probe_resp *old_probe_resp =
-			rtnl_dereference(sdata->u.ap.probe_resp);
-
-		/* sdata_running will return false, so this will disable */
-		ieee80211_bss_info_change_notify(sdata,
-						 BSS_CHANGED_BEACON_ENABLED);
-
-		/* remove beacon and probe response */
-		RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
-		RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
-		synchronize_rcu();
-		kfree(old_beacon);
-		kfree(old_probe_resp);
 
 		/* down all dependent devices, that is VLANs */
 		list_for_each_entry_safe(vlan, tmpsdata, &sdata->u.ap.vlans,
 					 u.vlan.list)
 			dev_close(vlan->dev);
 		WARN_ON(!list_empty(&sdata->u.ap.vlans));
-
-		/* free all potentially still buffered bcast frames */
-		local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps_bc_buf);
-		skb_queue_purge(&sdata->u.ap.ps_bc_buf);
 	} else if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		ieee80211_mgd_stop(sdata);
 	}
@@ -790,7 +862,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 		rcu_assign_pointer(local->p2p_sdata, NULL);
 		/* fall through */
 	default:
-		flush_work(&sdata->work);
+		cancel_work_sync(&sdata->work);
 		/*
 		 * When we get here, the interface is marked down.
 		 * Call rcu_barrier() to wait both for the RX path
@@ -837,14 +909,8 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 		hw_reconf_flags = 0;
 	}
 
-	/* Re-calculate channel-type, in case there are multiple vifs
-	 * on different channel types.
-	 */
-	orig_ct = local->_oper_channel_type;
-	ieee80211_set_channel_type(local, NULL, NL80211_CHAN_NO_HT);
-
 	/* do after stop to avoid reconfiguring when we stop anyway */
-	if (hw_reconf_flags || (orig_ct != local->_oper_channel_type))
+	if (hw_reconf_flags)
 		ieee80211_hw_config(local, hw_reconf_flags);
 
 	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
@@ -1121,6 +1187,13 @@ static void ieee80211_iface_work(struct work_struct *work)
 	}
 }
 
+static void ieee80211_recalc_smps_work(struct work_struct *work)
+{
+	struct ieee80211_sub_if_data *sdata =
+		container_of(work, struct ieee80211_sub_if_data, recalc_smps);
+
+	ieee80211_recalc_smps(sdata);
+}
 
 /*
  * Helper function to initialise an interface to a specific type.
@@ -1149,6 +1222,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 
 	skb_queue_head_init(&sdata->skb_queue);
 	INIT_WORK(&sdata->work, ieee80211_iface_work);
+	INIT_WORK(&sdata->recalc_smps, ieee80211_recalc_smps_work);
 
 	switch (type) {
 	case NL80211_IFTYPE_P2P_GO:
@@ -1157,7 +1231,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 		sdata->vif.p2p = true;
 		/* fall through */
 	case NL80211_IFTYPE_AP:
-		skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
+		skb_queue_head_init(&sdata->u.ap.ps.bc_buf);
 		INIT_LIST_HEAD(&sdata->u.ap.vlans);
 		break;
 	case NL80211_IFTYPE_P2P_CLIENT:
@@ -1282,11 +1356,6 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
 	if (type == ieee80211_vif_type_p2p(&sdata->vif))
 		return 0;
 
-	/* Setting ad-hoc mode on non-IBSS channel is not supported. */
-	if (sdata->local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS &&
-	    type == NL80211_IFTYPE_ADHOC)
-		return -EOPNOTSUPP;
-
 	if (ieee80211_sdata_running(sdata)) {
 		ret = ieee80211_runtime_change_iftype(sdata, type);
 		if (ret)
@@ -1298,9 +1367,6 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
 	}
 
 	/* reset some values that shouldn't be kept across type changes */
-	sdata->vif.bss_conf.basic_rates =
-		ieee80211_mandatory_rates(sdata->local,
-			sdata->local->oper_channel->band);
 	sdata->drop_unencrypted = 0;
 	if (type == NL80211_IFTYPE_STATION)
 		sdata->u.mgd.use_4addr = false;
@@ -1523,6 +1589,9 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 
 	ieee80211_set_default_queues(sdata);
 
+	sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL;
+	sdata->user_power_level = local->user_power_level;
+
 	/* setup type-dependent data */
 	ieee80211_setup_sdata(sdata, type);
 
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index d27e61a..619c5d6 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -339,7 +339,7 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
 		key->conf.iv_len = TKIP_IV_LEN;
 		key->conf.icv_len = TKIP_ICV_LEN;
 		if (seq) {
-			for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
+			for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 				key->u.tkip.rx[i].iv32 =
 					get_unaligned_le32(&seq[2]);
 				key->u.tkip.rx[i].iv16 =
@@ -352,7 +352,7 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
 		key->conf.iv_len = CCMP_HDR_LEN;
 		key->conf.icv_len = CCMP_MIC_LEN;
 		if (seq) {
-			for (i = 0; i < NUM_RX_DATA_QUEUES + 1; i++)
+			for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++)
 				for (j = 0; j < CCMP_PN_LEN; j++)
 					key->u.ccmp.rx_pn[i][j] =
 						seq[CCMP_PN_LEN - j - 1];
@@ -372,8 +372,9 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
 		key->conf.iv_len = 0;
 		key->conf.icv_len = sizeof(struct ieee80211_mmie);
 		if (seq)
-			for (j = 0; j < 6; j++)
-				key->u.aes_cmac.rx_pn[j] = seq[6 - j - 1];
+			for (j = 0; j < CMAC_PN_LEN; j++)
+				key->u.aes_cmac.rx_pn[j] =
+					seq[CMAC_PN_LEN - j - 1];
 		/*
 		 * Initialize AES key state here as an optimization so that
 		 * it does not need to be initialized for every packet.
@@ -654,16 +655,16 @@ void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf,
 
 	switch (key->conf.cipher) {
 	case WLAN_CIPHER_SUITE_TKIP:
-		if (WARN_ON(tid < 0 || tid >= NUM_RX_DATA_QUEUES))
+		if (WARN_ON(tid < 0 || tid >= IEEE80211_NUM_TIDS))
 			return;
 		seq->tkip.iv32 = key->u.tkip.rx[tid].iv32;
 		seq->tkip.iv16 = key->u.tkip.rx[tid].iv16;
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
-		if (WARN_ON(tid < -1 || tid >= NUM_RX_DATA_QUEUES))
+		if (WARN_ON(tid < -1 || tid >= IEEE80211_NUM_TIDS))
 			return;
 		if (tid < 0)
-			pn = key->u.ccmp.rx_pn[NUM_RX_DATA_QUEUES];
+			pn = key->u.ccmp.rx_pn[IEEE80211_NUM_TIDS];
 		else
 			pn = key->u.ccmp.rx_pn[tid];
 		memcpy(seq->ccmp.pn, pn, CCMP_PN_LEN);
diff --git a/net/mac80211/key.h b/net/mac80211/key.h
index 7d4e31f..382dc44 100644
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -30,8 +30,6 @@
 #define TKIP_ICV_LEN		4
 #define CMAC_PN_LEN		6
 
-#define NUM_RX_DATA_QUEUES	16
-
 struct ieee80211_local;
 struct ieee80211_sub_if_data;
 struct sta_info;
@@ -82,17 +80,20 @@ struct ieee80211_key {
 			struct tkip_ctx tx;
 
 			/* last received RSC */
-			struct tkip_ctx rx[NUM_RX_DATA_QUEUES];
+			struct tkip_ctx rx[IEEE80211_NUM_TIDS];
+
+			/* number of mic failures */
+			u32 mic_failures;
 		} tkip;
 		struct {
 			atomic64_t tx_pn;
 			/*
 			 * Last received packet number. The first
-			 * NUM_RX_DATA_QUEUES counters are used with Data
+			 * IEEE80211_NUM_TIDS counters are used with Data
 			 * frames and the last counter is used with Robust
 			 * Management frames.
 			 */
-			u8 rx_pn[NUM_RX_DATA_QUEUES + 1][CCMP_PN_LEN];
+			u8 rx_pn[IEEE80211_NUM_TIDS + 1][CCMP_PN_LEN];
 			struct crypto_cipher *tfm;
 			u32 replays; /* dot11RSNAStatsCCMPReplays */
 		} ccmp;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index f57f597..1b087ff 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -93,15 +93,15 @@ static void ieee80211_reconfig_filter(struct work_struct *work)
 	ieee80211_configure_filter(local);
 }
 
-int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
+static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local)
 {
+	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_channel *chan;
-	int ret = 0;
+	u32 changed = 0;
 	int power;
 	enum nl80211_channel_type channel_type;
 	u32 offchannel_flag;
-
-	might_sleep();
+	bool scanning = false;
 
 	offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
 	if (local->scan_channel) {
@@ -109,19 +109,19 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 		/* If scanning on oper channel, use whatever channel-type
 		 * is currently in use.
 		 */
-		if (chan == local->oper_channel)
+		if (chan == local->_oper_channel)
 			channel_type = local->_oper_channel_type;
 		else
 			channel_type = NL80211_CHAN_NO_HT;
 	} else if (local->tmp_channel) {
 		chan = local->tmp_channel;
-		channel_type = local->tmp_channel_type;
+		channel_type = NL80211_CHAN_NO_HT;
 	} else {
-		chan = local->oper_channel;
+		chan = local->_oper_channel;
 		channel_type = local->_oper_channel_type;
 	}
 
-	if (chan != local->oper_channel ||
+	if (chan != local->_oper_channel ||
 	    channel_type != local->_oper_channel_type)
 		local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL;
 	else
@@ -148,22 +148,39 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 		changed |= IEEE80211_CONF_CHANGE_SMPS;
 	}
 
-	if (test_bit(SCAN_SW_SCANNING, &local->scanning) ||
-	    test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) ||
-	    test_bit(SCAN_HW_SCANNING, &local->scanning) ||
-	    !local->ap_power_level)
-		power = chan->max_power;
-	else
-		power = min(chan->max_power, local->ap_power_level);
+	scanning = test_bit(SCAN_SW_SCANNING, &local->scanning) ||
+		   test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) ||
+		   test_bit(SCAN_HW_SCANNING, &local->scanning);
+	power = chan->max_power;
 
-	if (local->user_power_level >= 0)
-		power = min(power, local->user_power_level);
+	rcu_read_lock();
+	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+		if (!rcu_access_pointer(sdata->vif.chanctx_conf))
+			continue;
+		power = min(power, sdata->vif.bss_conf.txpower);
+	}
+	rcu_read_unlock();
 
 	if (local->hw.conf.power_level != power) {
 		changed |= IEEE80211_CONF_CHANGE_POWER;
 		local->hw.conf.power_level = power;
 	}
 
+	return changed;
+}
+
+int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
+{
+	int ret = 0;
+
+	might_sleep();
+
+	if (!local->use_chanctx)
+		changed |= ieee80211_hw_conf_chan(local);
+	else
+		changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL |
+			     IEEE80211_CONF_CHANGE_POWER);
+
 	if (changed && local->open_count) {
 		ret = drv_config(local, changed);
 		/*
@@ -359,14 +376,6 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw)
 }
 EXPORT_SYMBOL(ieee80211_restart_hw);
 
-static void ieee80211_recalc_smps_work(struct work_struct *work)
-{
-	struct ieee80211_local *local =
-		container_of(work, struct ieee80211_local, recalc_smps);
-
-	ieee80211_recalc_smps(local);
-}
-
 #ifdef CONFIG_INET
 static int ieee80211_ifa_changed(struct notifier_block *nb,
 				 unsigned long data, void *arg)
@@ -465,7 +474,8 @@ ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = {
 		.tx = 0xffff,
 		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
 			BIT(IEEE80211_STYPE_AUTH >> 4) |
-			BIT(IEEE80211_STYPE_DEAUTH >> 4),
+			BIT(IEEE80211_STYPE_DEAUTH >> 4) |
+			BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
 	},
 	[NL80211_IFTYPE_STATION] = {
 		.tx = 0xffff,
@@ -540,6 +550,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	struct ieee80211_local *local;
 	int priv_size, i;
 	struct wiphy *wiphy;
+	bool use_chanctx;
 
 	if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config ||
 		    !ops->add_interface || !ops->remove_interface ||
@@ -549,6 +560,14 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove)))
 		return NULL;
 
+	/* check all or no channel context operations exist */
+	i = !!ops->add_chanctx + !!ops->remove_chanctx +
+	    !!ops->change_chanctx + !!ops->assign_vif_chanctx +
+	    !!ops->unassign_vif_chanctx;
+	if (WARN_ON(i != 0 && i != 5))
+		return NULL;
+	use_chanctx = i == 5;
+
 	/* Ensure 32-byte alignment of our private data and hw private data.
 	 * We use the wiphy priv data for both our ieee80211_local and for
 	 * the driver's private data
@@ -584,8 +603,15 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	if (ops->remain_on_channel)
 		wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
 
-	wiphy->features = NL80211_FEATURE_SK_TX_STATUS |
-			  NL80211_FEATURE_HT_IBSS;
+	wiphy->features |= NL80211_FEATURE_SK_TX_STATUS |
+			   NL80211_FEATURE_SAE |
+			   NL80211_FEATURE_HT_IBSS |
+			   NL80211_FEATURE_VIF_TXPOWER;
+
+	if (!ops->hw_scan)
+		wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN |
+				   NL80211_FEATURE_AP_SCAN;
+
 
 	if (!ops->set_key)
 		wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
@@ -599,6 +625,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN);
 
 	local->ops = ops;
+	local->use_chanctx = use_chanctx;
 
 	/* set up some defaults */
 	local->hw.queues = 1;
@@ -612,7 +639,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS |
 					 IEEE80211_RADIOTAP_MCS_HAVE_GI |
 					 IEEE80211_RADIOTAP_MCS_HAVE_BW;
-	local->user_power_level = -1;
+	local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI |
+					 IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH;
+	local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
 	wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask;
 
 	INIT_LIST_HEAD(&local->interfaces);
@@ -626,6 +655,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	spin_lock_init(&local->filter_lock);
 	spin_lock_init(&local->queue_stop_reason_lock);
 
+	INIT_LIST_HEAD(&local->chanctx_list);
+	mutex_init(&local->chanctx_mtx);
+
 	/*
 	 * The rx_skb_queue is only accessed from tasklets,
 	 * but other SKB queues are used from within IRQ
@@ -641,7 +673,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	INIT_WORK(&local->restart_work, ieee80211_restart_work);
 
 	INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter);
-	INIT_WORK(&local->recalc_smps, ieee80211_recalc_smps_work);
 	local->smps_mode = IEEE80211_SMPS_OFF;
 
 	INIT_WORK(&local->dynamic_ps_enable_work,
@@ -719,6 +750,25 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	if ((hw->flags & IEEE80211_HW_SCAN_WHILE_IDLE) && !local->ops->hw_scan)
 		return -EINVAL;
 
+	if (!local->use_chanctx) {
+		for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) {
+			const struct ieee80211_iface_combination *comb;
+
+			comb = &local->hw.wiphy->iface_combinations[i];
+
+			if (comb->num_different_channels > 1)
+				return -EINVAL;
+		}
+	} else {
+		/*
+		 * WDS is currently prohibited when channel contexts are used
+		 * because there's no clear definition of which channel WDS
+		 * type interfaces use
+		 */
+		if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS))
+			return -EINVAL;
+	}
+
 	/* Only HW csum features are currently compatible with mac80211 */
 	feature_whitelist = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
 			    NETIF_F_HW_CSUM;
@@ -728,6 +778,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	if (hw->max_report_rates == 0)
 		hw->max_report_rates = hw->max_rates;
 
+	local->rx_chains = 1;
+
 	/*
 	 * generic code guarantees at least one band,
 	 * set this very early because much code assumes
@@ -743,18 +795,28 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 		sband = local->hw.wiphy->bands[band];
 		if (!sband)
 			continue;
-		if (!local->oper_channel) {
+		if (!local->use_chanctx && !local->_oper_channel) {
 			/* init channel we're on */
 			local->hw.conf.channel =
-			local->oper_channel = &sband->channels[0];
+			local->_oper_channel = &sband->channels[0];
 			local->hw.conf.channel_type = NL80211_CHAN_NO_HT;
 		}
+		cfg80211_chandef_create(&local->monitor_chandef,
+					&sband->channels[0],
+					NL80211_CHAN_NO_HT);
 		channels += sband->n_channels;
 
 		if (max_bitrates < sband->n_bitrates)
 			max_bitrates = sband->n_bitrates;
 		supp_ht = supp_ht || sband->ht_cap.ht_supported;
 		supp_vht = supp_vht || sband->vht_cap.vht_supported;
+
+		if (sband->ht_cap.ht_supported)
+			local->rx_chains =
+				max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs),
+				    local->rx_chains);
+
+		/* TODO: consider VHT for RX chains, hopefully it's the same */
 	}
 
 	local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) +
@@ -778,19 +840,13 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
 	hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR);
 
-	/*
-	 * mac80211 doesn't support more than 1 channel, and also not more
-	 * than one IBSS interface
-	 */
+	/* mac80211 doesn't support more than one IBSS interface right now */
 	for (i = 0; i < hw->wiphy->n_iface_combinations; i++) {
 		const struct ieee80211_iface_combination *c;
 		int j;
 
 		c = &hw->wiphy->iface_combinations[i];
 
-		if (c->num_different_channels > 1)
-			return -EINVAL;
-
 		for (j = 0; j < c->n_limits; j++)
 			if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) &&
 			    c->limits[j].max > 1)
@@ -830,9 +886,21 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	if (supp_ht)
 		local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap);
 
-	if (supp_vht)
+	if (supp_vht) {
 		local->scan_ies_len +=
-			2 + sizeof(struct ieee80211_vht_capabilities);
+			2 + sizeof(struct ieee80211_vht_cap);
+
+		/*
+		 * (for now at least), drivers wanting to use VHT must
+		 * support channel contexts, as they contain all the
+		 * necessary VHT information and the global hw config
+		 * doesn't (yet)
+		 */
+		if (WARN_ON(!local->use_chanctx)) {
+			result = -EINVAL;
+			goto fail_wiphy_register;
+		}
+	}
 
 	if (!local->ops->hw_scan) {
 		/* For hw_scan, driver needs to set these up. */
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index ff0296c..1bf03f9 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -76,7 +76,7 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	struct ieee80211_local *local = sdata->local;
 	u32 basic_rates = 0;
-	enum nl80211_channel_type sta_channel_type = NL80211_CHAN_NO_HT;
+	struct cfg80211_chan_def sta_chan_def;
 
 	/*
 	 * As support for each feature is added, check for matching
@@ -97,23 +97,17 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
 	     (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth)))
 		goto mismatch;
 
-	ieee80211_sta_get_rates(local, ie, local->oper_channel->band,
+	ieee80211_sta_get_rates(local, ie, ieee80211_get_sdata_band(sdata),
 				&basic_rates);
 
 	if (sdata->vif.bss_conf.basic_rates != basic_rates)
 		goto mismatch;
 
-	if (ie->ht_operation)
-		sta_channel_type =
-			ieee80211_ht_oper_to_channel_type(ie->ht_operation);
-
-	/* Disallow HT40+/- mismatch */
-	if (ie->ht_operation &&
-	    (sdata->vif.bss_conf.channel_type == NL80211_CHAN_HT40MINUS ||
-	     sdata->vif.bss_conf.channel_type == NL80211_CHAN_HT40PLUS) &&
-	    (sta_channel_type == NL80211_CHAN_HT40MINUS ||
-	     sta_channel_type == NL80211_CHAN_HT40PLUS) &&
-	    sdata->vif.bss_conf.channel_type != sta_channel_type)
+	ieee80211_ht_oper_to_chandef(sdata->vif.bss_conf.chandef.chan,
+				     ie->ht_operation, &sta_chan_def);
+
+	if (!cfg80211_chandef_compatible(&sdata->vif.bss_conf.chandef,
+					 &sta_chan_def))
 		goto mismatch;
 
 	return true;
@@ -129,7 +123,7 @@ mismatch:
 bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie)
 {
 	return (ie->mesh_config->meshconf_cap &
-	    MESHCONF_CAPAB_ACCEPT_PLINKS) != 0;
+	    IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS) != 0;
 }
 
 /**
@@ -264,16 +258,16 @@ mesh_add_meshconf_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata)
 	/* Authentication Protocol identifier */
 	*pos++ = ifmsh->mesh_auth_id;
 	/* Mesh Formation Info - number of neighbors */
-	neighbors = atomic_read(&ifmsh->mshstats.estab_plinks);
+	neighbors = atomic_read(&ifmsh->estab_plinks);
 	/* Number of neighbor mesh STAs or 15 whichever is smaller */
 	neighbors = (neighbors > 15) ? 15 : neighbors;
 	*pos++ = neighbors << 1;
 	/* Mesh capability */
-	*pos = MESHCONF_CAPAB_FORWARDING;
+	*pos = IEEE80211_MESHCONF_CAPAB_FORWARDING;
 	*pos |= ifmsh->accepting_plinks ?
-	    MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00;
+	    IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00;
 	*pos++ |= ifmsh->adjusting_tbtt ?
-	    MESHCONF_CAPAB_TBTT_ADJUSTING : 0x00;
+	    IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING : 0x00;
 	*pos++ = 0x00;
 
 	return 0;
@@ -355,12 +349,22 @@ int mesh_add_ds_params_ie(struct sk_buff *skb,
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
-	struct ieee80211_channel *chan = local->oper_channel;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_channel *chan;
 	u8 *pos;
 
 	if (skb_tailroom(skb) < 3)
 		return -ENOMEM;
 
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (WARN_ON(!chanctx_conf)) {
+		rcu_read_unlock();
+		return -EINVAL;
+	}
+	chan = chanctx_conf->def.chan;
+	rcu_read_unlock();
+
 	sband = local->hw.wiphy->bands[chan->band];
 	if (sband->band == IEEE80211_BAND_2GHZ) {
 		pos = skb_put(skb, 2 + 1);
@@ -376,12 +380,13 @@ int mesh_add_ht_cap_ie(struct sk_buff *skb,
 		       struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_local *local = sdata->local;
+	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
 	struct ieee80211_supported_band *sband;
 	u8 *pos;
 
-	sband = local->hw.wiphy->bands[local->oper_channel->band];
+	sband = local->hw.wiphy->bands[band];
 	if (!sband->ht_cap.ht_supported ||
-	    sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT)
+	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
 		return 0;
 
 	if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_cap))
@@ -397,14 +402,26 @@ int mesh_add_ht_oper_ie(struct sk_buff *skb,
 			struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_channel *channel = local->oper_channel;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_channel *channel;
 	enum nl80211_channel_type channel_type =
-				sdata->vif.bss_conf.channel_type;
-	struct ieee80211_supported_band *sband =
-				local->hw.wiphy->bands[channel->band];
-	struct ieee80211_sta_ht_cap *ht_cap = &sband->ht_cap;
+		cfg80211_get_chandef_type(&sdata->vif.bss_conf.chandef);
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_sta_ht_cap *ht_cap;
 	u8 *pos;
 
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (WARN_ON(!chanctx_conf)) {
+		rcu_read_unlock();
+		return -EINVAL;
+	}
+	channel = chanctx_conf->def.chan;
+	rcu_read_unlock();
+
+	sband = local->hw.wiphy->bands[channel->band];
+	ht_cap = &sband->ht_cap;
+
 	if (!ht_cap->ht_supported || channel_type == NL80211_CHAN_NO_HT)
 		return 0;
 
@@ -412,7 +429,7 @@ int mesh_add_ht_oper_ie(struct sk_buff *skb,
 		return -ENOMEM;
 
 	pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_operation));
-	ieee80211_ie_build_ht_oper(pos, ht_cap, channel, channel_type,
+	ieee80211_ie_build_ht_oper(pos, ht_cap, &sdata->vif.bss_conf.chandef,
 				   sdata->vif.bss_conf.ht_operation_mode);
 
 	return 0;
@@ -610,7 +627,7 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 	sdata->vif.bss_conf.beacon_int = MESH_DEFAULT_BEACON_INTERVAL;
 	sdata->vif.bss_conf.basic_rates =
 		ieee80211_mandatory_rates(sdata->local,
-					  sdata->local->oper_channel->band);
+					  ieee80211_get_sdata_band(sdata));
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON |
 						BSS_CHANGED_BEACON_ENABLED |
 						BSS_CHANGED_HT |
@@ -680,8 +697,10 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 	ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
 			       &elems);
 
-	/* ignore beacons from secure mesh peers if our security is off */
-	if (elems.rsn_len && sdata->u.mesh.security == IEEE80211_MESH_SEC_NONE)
+	/* ignore non-mesh or secure / unsecure mismatch */
+	if ((!elems.mesh_id || !elems.mesh_config) ||
+	    (elems.rsn && sdata->u.mesh.security == IEEE80211_MESH_SEC_NONE) ||
+	    (!elems.rsn && sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE))
 		return;
 
 	if (elems.ds_params && elems.ds_params_len == 1)
@@ -694,8 +713,7 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 	if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
 		return;
 
-	if (elems.mesh_id && elems.mesh_config &&
-	    mesh_matches_local(sdata, &elems))
+	if (mesh_matches_local(sdata, &elems))
 		mesh_neighbour_update(sdata, mgmt->sa, &elems);
 
 	if (ifmsh->sync_ops)
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 25d0f17..7c9215f 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -19,20 +19,6 @@
 /* Data structures */
 
 /**
- * enum mesh_config_capab_flags - mesh config IE capability flags
- *
- * @MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
- * additional mesh peerings with other mesh STAs
- * @MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
- * @MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure is ongoing
- */
-enum mesh_config_capab_flags {
-	MESHCONF_CAPAB_ACCEPT_PLINKS = BIT(0),
-	MESHCONF_CAPAB_FORWARDING = BIT(3),
-	MESHCONF_CAPAB_TBTT_ADJUSTING = BIT(5),
-};
-
-/**
  * enum mesh_path_flags - mac80211 mesh path flags
  *
  *
@@ -256,7 +242,7 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata);
 void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
 void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata);
 void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh);
-struct ieee80211_mesh_sync_ops *ieee80211_mesh_sync_ops_get(u8 method);
+const struct ieee80211_mesh_sync_ops *ieee80211_mesh_sync_ops_get(u8 method);
 
 /* Mesh paths */
 int mesh_nexthop_lookup(struct sk_buff *skb,
@@ -324,7 +310,7 @@ extern int mesh_allocated;
 static inline int mesh_plink_free_count(struct ieee80211_sub_if_data *sdata)
 {
 	return sdata->u.mesh.mshcfg.dot11MeshMaxPeerLinks -
-	       atomic_read(&sdata->u.mesh.mshstats.estab_plinks);
+	       atomic_read(&sdata->u.mesh.estab_plinks);
 }
 
 static inline bool mesh_plink_availables(struct ieee80211_sub_if_data *sdata)
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 3ab34d8..4b274e9 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -19,12 +19,6 @@
 #define mod_plink_timer(s, t) (mod_timer(&s->plink_timer, \
 				jiffies + HZ * t / 1000))
 
-#define dot11MeshMaxRetries(s) (s->u.mesh.mshcfg.dot11MeshMaxRetries)
-#define dot11MeshRetryTimeout(s) (s->u.mesh.mshcfg.dot11MeshRetryTimeout)
-#define dot11MeshConfirmTimeout(s) (s->u.mesh.mshcfg.dot11MeshConfirmTimeout)
-#define dot11MeshHoldingTimeout(s) (s->u.mesh.mshcfg.dot11MeshHoldingTimeout)
-#define dot11MeshMaxPeerLinks(s) (s->u.mesh.mshcfg.dot11MeshMaxPeerLinks)
-
 /* We only need a valid sta if user configured a minimum rssi_threshold. */
 #define rssi_threshold_check(sta, sdata) \
 		(sdata->u.mesh.mshcfg.rssi_threshold == 0 ||\
@@ -50,14 +44,14 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
 static inline
 u32 mesh_plink_inc_estab_count(struct ieee80211_sub_if_data *sdata)
 {
-	atomic_inc(&sdata->u.mesh.mshstats.estab_plinks);
+	atomic_inc(&sdata->u.mesh.estab_plinks);
 	return mesh_accept_plinks_update(sdata);
 }
 
 static inline
 u32 mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata)
 {
-	atomic_dec(&sdata->u.mesh.mshstats.estab_plinks);
+	atomic_dec(&sdata->u.mesh.estab_plinks);
 	return mesh_accept_plinks_update(sdata);
 }
 
@@ -117,7 +111,7 @@ static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata)
 	u16 ht_opmode;
 	bool non_ht_sta = false, ht20_sta = false;
 
-	if (sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT)
+	if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
 		return 0;
 
 	rcu_read_lock();
@@ -126,14 +120,14 @@ static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata)
 		    sta->plink_state != NL80211_PLINK_ESTAB)
 			continue;
 
-		switch (sta->ch_type) {
-		case NL80211_CHAN_NO_HT:
+		switch (sta->ch_width) {
+		case NL80211_CHAN_WIDTH_20_NOHT:
 			mpl_dbg(sdata,
 				"mesh_plink %pM: nonHT sta (%pM) is present\n",
 				sdata->vif.addr, sta->sta.addr);
 			non_ht_sta = true;
 			goto out;
-		case NL80211_CHAN_HT20:
+		case NL80211_CHAN_WIDTH_20:
 			mpl_dbg(sdata,
 				"mesh_plink %pM: HT20 sta (%pM) is present\n",
 				sdata->vif.addr, sta->sta.addr);
@@ -148,7 +142,7 @@ out:
 	if (non_ht_sta)
 		ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED;
 	else if (ht20_sta &&
-		 sdata->vif.bss_conf.channel_type > NL80211_CHAN_HT20)
+		 sdata->vif.bss_conf.chandef.width > NL80211_CHAN_WIDTH_20)
 		ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_20MHZ;
 	else
 		ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
@@ -252,6 +246,8 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
 	mgmt->u.action.u.self_prot.action_code = action;
 
 	if (action != WLAN_SP_MESH_PEERING_CLOSE) {
+		enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
+
 		/* capability info */
 		pos = skb_put(skb, 2);
 		memset(pos, 0, 2);
@@ -260,10 +256,8 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
 			pos = skb_put(skb, 2);
 			memcpy(pos + 2, &plid, 2);
 		}
-		if (ieee80211_add_srates_ie(sdata, skb, true,
-					    local->oper_channel->band) ||
-		    ieee80211_add_ext_srates_ie(sdata, skb, true,
-						local->oper_channel->band) ||
+		if (ieee80211_add_srates_ie(sdata, skb, true, band) ||
+		    ieee80211_add_ext_srates_ie(sdata, skb, true, band) ||
 		    mesh_add_rsn_ie(skb, sdata) ||
 		    mesh_add_meshid_ie(skb, sdata) ||
 		    mesh_add_meshconf_ie(skb, sdata))
@@ -343,7 +337,7 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata,
 				       struct ieee802_11_elems *elems)
 {
 	struct ieee80211_local *local = sdata->local;
-	enum ieee80211_band band = local->oper_channel->band;
+	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
 	struct ieee80211_supported_band *sband;
 	u32 rates, basic_rates = 0;
 	struct sta_info *sta;
@@ -378,7 +372,7 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata,
 
 	sta->sta.supp_rates[band] = rates;
 	if (elems->ht_cap_elem &&
-	    sdata->vif.bss_conf.channel_type != NL80211_CHAN_NO_HT)
+	    sdata->vif.bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT)
 		ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
 						  elems->ht_cap_elem,
 						  &sta->sta.ht_cap);
@@ -386,15 +380,19 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata,
 		memset(&sta->sta.ht_cap, 0, sizeof(sta->sta.ht_cap));
 
 	if (elems->ht_operation) {
+		struct cfg80211_chan_def chandef;
+
 		if (!(elems->ht_operation->ht_param &
 		      IEEE80211_HT_PARAM_CHAN_WIDTH_ANY))
 			sta->sta.ht_cap.cap &=
 					    ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
-		sta->ch_type =
-			ieee80211_ht_oper_to_channel_type(elems->ht_operation);
+		ieee80211_ht_oper_to_chandef(sdata->vif.bss_conf.chandef.chan,
+					     elems->ht_operation, &chandef);
+		sta->ch_width = chandef.width;
 	}
 
-	rate_control_rate_init(sta);
+	if (insert)
+		rate_control_rate_init(sta);
 	spin_unlock_bh(&sta->lock);
 
 	if (insert && sta_info_insert(sta))
@@ -430,6 +428,7 @@ static void mesh_plink_timer(unsigned long data)
 	struct sta_info *sta;
 	__le16 llid, plid, reason;
 	struct ieee80211_sub_if_data *sdata;
+	struct mesh_config *mshcfg;
 
 	/*
 	 * This STA is valid because sta_info_destroy() will
@@ -456,12 +455,13 @@ static void mesh_plink_timer(unsigned long data)
 	llid = sta->llid;
 	plid = sta->plid;
 	sdata = sta->sdata;
+	mshcfg = &sdata->u.mesh.mshcfg;
 
 	switch (sta->plink_state) {
 	case NL80211_PLINK_OPN_RCVD:
 	case NL80211_PLINK_OPN_SNT:
 		/* retry timer */
-		if (sta->plink_retries < dot11MeshMaxRetries(sdata)) {
+		if (sta->plink_retries < mshcfg->dot11MeshMaxRetries) {
 			u32 rand;
 			mpl_dbg(sta->sdata,
 				"Mesh plink for %pM (retry, timeout): %d %d\n",
@@ -484,7 +484,7 @@ static void mesh_plink_timer(unsigned long data)
 		if (!reason)
 			reason = cpu_to_le16(WLAN_REASON_MESH_CONFIRM_TIMEOUT);
 		sta->plink_state = NL80211_PLINK_HOLDING;
-		mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata));
+		mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);
 		spin_unlock_bh(&sta->lock);
 		mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE,
 				    sta->sta.addr, llid, plid, reason);
@@ -543,7 +543,7 @@ int mesh_plink_open(struct sta_info *sta)
 		return -EBUSY;
 	}
 	sta->plink_state = NL80211_PLINK_OPN_SNT;
-	mesh_plink_timer_set(sta, dot11MeshRetryTimeout(sdata));
+	mesh_plink_timer_set(sta, sdata->u.mesh.mshcfg.dot11MeshRetryTimeout);
 	spin_unlock_bh(&sta->lock);
 	mpl_dbg(sdata,
 		"Mesh plink: starting establishment with %pM\n",
@@ -570,6 +570,7 @@ void mesh_plink_block(struct sta_info *sta)
 void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt,
 			 size_t len, struct ieee80211_rx_status *rx_status)
 {
+	struct mesh_config *mshcfg = &sdata->u.mesh.mshcfg;
 	struct ieee802_11_elems elems;
 	struct sta_info *sta;
 	enum plink_event event;
@@ -777,7 +778,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
 			sta->plid = plid;
 			get_random_bytes(&llid, 2);
 			sta->llid = llid;
-			mesh_plink_timer_set(sta, dot11MeshRetryTimeout(sdata));
+			mesh_plink_timer_set(sta,
+					     mshcfg->dot11MeshRetryTimeout);
 			spin_unlock_bh(&sta->lock);
 			mesh_plink_frame_tx(sdata,
 					    WLAN_SP_MESH_PEERING_OPEN,
@@ -803,7 +805,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
 			sta->reason = reason;
 			sta->plink_state = NL80211_PLINK_HOLDING;
 			if (!mod_plink_timer(sta,
-					     dot11MeshHoldingTimeout(sdata)))
+					     mshcfg->dot11MeshHoldingTimeout))
 				sta->ignore_plink_timer = true;
 
 			llid = sta->llid;
@@ -825,7 +827,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
 		case CNF_ACPT:
 			sta->plink_state = NL80211_PLINK_CNF_RCVD;
 			if (!mod_plink_timer(sta,
-					     dot11MeshConfirmTimeout(sdata)))
+					     mshcfg->dot11MeshConfirmTimeout))
 				sta->ignore_plink_timer = true;
 
 			spin_unlock_bh(&sta->lock);
@@ -847,7 +849,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
 			sta->reason = reason;
 			sta->plink_state = NL80211_PLINK_HOLDING;
 			if (!mod_plink_timer(sta,
-					     dot11MeshHoldingTimeout(sdata)))
+					     mshcfg->dot11MeshHoldingTimeout))
 				sta->ignore_plink_timer = true;
 
 			llid = sta->llid;
@@ -888,7 +890,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
 			sta->reason = reason;
 			sta->plink_state = NL80211_PLINK_HOLDING;
 			if (!mod_plink_timer(sta,
-					     dot11MeshHoldingTimeout(sdata)))
+					     mshcfg->dot11MeshHoldingTimeout))
 				sta->ignore_plink_timer = true;
 
 			llid = sta->llid;
@@ -923,7 +925,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
 			changed |= __mesh_plink_deactivate(sta);
 			sta->plink_state = NL80211_PLINK_HOLDING;
 			llid = sta->llid;
-			mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata));
+			mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);
 			spin_unlock_bh(&sta->lock);
 			changed |= mesh_set_ht_prot_mode(sdata);
 			mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE,
diff --git a/net/mac80211/mesh_sync.c b/net/mac80211/mesh_sync.c
index a16b7b4..aa8d1e4 100644
--- a/net/mac80211/mesh_sync.c
+++ b/net/mac80211/mesh_sync.c
@@ -43,7 +43,7 @@ struct sync_method {
 static bool mesh_peer_tbtt_adjusting(struct ieee802_11_elems *ie)
 {
 	return (ie->mesh_config->meshconf_cap &
-	    MESHCONF_CAPAB_TBTT_ADJUSTING) != 0;
+	    IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING) != 0;
 }
 
 void mesh_sync_adjust_tbtt(struct ieee80211_sub_if_data *sdata)
@@ -116,43 +116,13 @@ static void mesh_sync_offset_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 		goto no_sync;
 	}
 
-	if (rx_status->flag & RX_FLAG_MACTIME_MPDU && rx_status->mactime) {
-		/*
-		 * The mactime is defined as the time the first data symbol
-		 * of the frame hits the PHY, and the timestamp of the beacon
-		 * is defined as "the time that the data symbol containing the
-		 * first bit of the timestamp is transmitted to the PHY plus
-		 * the transmitting STA's delays through its local PHY from the
-		 * MAC-PHY interface to its interface with the WM" (802.11
-		 * 11.1.2)
-		 *
-		 * T_r, in 13.13.2.2.2, is just defined as "the frame reception
-		 * time" but we unless we interpret that time to be the same
-		 * time of the beacon timestamp, the offset calculation will be
-		 * off.  Below we adjust t_r to be "the time at which the first
-		 * symbol of the timestamp element in the beacon is received".
-		 * This correction depends on the rate.
-		 *
-		 * Based on similar code in ibss.c
-		 */
-		int rate;
-
-		if (rx_status->flag & RX_FLAG_HT) {
-			/* TODO:
-			 * In principle there could be HT-beacons (Dual Beacon
-			 * HT Operation options), but for now ignore them and
-			 * just use the primary (i.e. non-HT) beacons for
-			 * synchronization.
-			 * */
-			goto no_sync;
-		} else
-			rate = local->hw.wiphy->bands[rx_status->band]->
-				bitrates[rx_status->rate_idx].bitrate;
-
-		/* 24 bytes of header * 8 bits/byte *
-		 * 10*(100 Kbps)/Mbps / rate (100 Kbps)*/
-		t_r = rx_status->mactime + (24 * 8 * 10 / rate);
-	}
+	if (ieee80211_have_rx_timestamp(rx_status))
+		/* time when timestamp field was received */
+		t_r = ieee80211_calculate_rx_timestamp(local, rx_status,
+						       24 + 12 +
+						       elems->total_len +
+						       FCS_LEN,
+						       24);
 
 	/* Timing offset calculation (see 13.13.2.2.2) */
 	t_t = le64_to_cpu(mgmt->u.beacon.timestamp);
@@ -225,58 +195,20 @@ static void mesh_sync_offset_adjust_tbtt(struct ieee80211_sub_if_data *sdata)
 			  ifmsh->sync_offset_clockdrift_max);
 		set_bit(MESH_WORK_DRIFT_ADJUST,
 			&ifmsh->wrkq_flags);
+
+		ifmsh->adjusting_tbtt = true;
 	} else {
 		msync_dbg(sdata,
 			  "TBTT : max clockdrift=%lld; too small to adjust\n",
 			  (long long)ifmsh->sync_offset_clockdrift_max);
 		ifmsh->sync_offset_clockdrift_max = 0;
+
+		ifmsh->adjusting_tbtt = false;
 	}
 	spin_unlock_bh(&ifmsh->sync_offset_lock);
 }
 
-static const u8 *mesh_get_vendor_oui(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
-	u8 offset;
-
-	if (!ifmsh->ie || !ifmsh->ie_len)
-		return NULL;
-
-	offset = ieee80211_ie_split_vendor(ifmsh->ie,
-					ifmsh->ie_len, 0);
-
-	if (!offset)
-		return NULL;
-
-	return ifmsh->ie + offset + 2;
-}
-
-static void mesh_sync_vendor_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
-				   u16 stype,
-				   struct ieee80211_mgmt *mgmt,
-				   struct ieee802_11_elems *elems,
-				   struct ieee80211_rx_status *rx_status)
-{
-	const u8 *oui;
-
-	WARN_ON(sdata->u.mesh.mesh_sp_id != IEEE80211_SYNC_METHOD_VENDOR);
-	msync_dbg(sdata, "called mesh_sync_vendor_rx_bcn_presp\n");
-	oui = mesh_get_vendor_oui(sdata);
-	/*  here you would implement the vendor offset tracking for this oui */
-}
-
-static void mesh_sync_vendor_adjust_tbtt(struct ieee80211_sub_if_data *sdata)
-{
-	const u8 *oui;
-
-	WARN_ON(sdata->u.mesh.mesh_sp_id != IEEE80211_SYNC_METHOD_VENDOR);
-	msync_dbg(sdata, "called mesh_sync_vendor_adjust_tbtt\n");
-	oui = mesh_get_vendor_oui(sdata);
-	/*  here you would implement the vendor tsf adjustment for this oui */
-}
-
-/* global variable */
-static struct sync_method sync_methods[] = {
+static const struct sync_method sync_methods[] = {
 	{
 		.method = IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET,
 		.ops = {
@@ -284,18 +216,11 @@ static struct sync_method sync_methods[] = {
 			.adjust_tbtt = &mesh_sync_offset_adjust_tbtt,
 		}
 	},
-	{
-		.method = IEEE80211_SYNC_METHOD_VENDOR,
-		.ops = {
-			.rx_bcn_presp = &mesh_sync_vendor_rx_bcn_presp,
-			.adjust_tbtt = &mesh_sync_vendor_adjust_tbtt,
-		}
-	},
 };
 
-struct ieee80211_mesh_sync_ops *ieee80211_mesh_sync_ops_get(u8 method)
+const struct ieee80211_mesh_sync_ops *ieee80211_mesh_sync_ops_get(u8 method)
 {
-	struct ieee80211_mesh_sync_ops *ops = NULL;
+	const struct ieee80211_mesh_sync_ops *ops = NULL;
 	u8 i;
 
 	for (i = 0 ; i < ARRAY_SIZE(sync_methods); ++i) {
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 1b7eed2..7753a9c 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -178,20 +178,32 @@ static u32 ieee80211_config_ht_tx(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_channel *chan;
 	struct sta_info *sta;
 	u32 changed = 0;
 	u16 ht_opmode;
 	bool disable_40 = false;
 
-	sband = local->hw.wiphy->bands[local->oper_channel->band];
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (WARN_ON(!chanctx_conf)) {
+		rcu_read_unlock();
+		return 0;
+	}
+	chan = chanctx_conf->def.chan;
+	rcu_read_unlock();
+	sband = local->hw.wiphy->bands[chan->band];
 
-	switch (sdata->vif.bss_conf.channel_type) {
-	case NL80211_CHAN_HT40PLUS:
-		if (local->oper_channel->flags & IEEE80211_CHAN_NO_HT40PLUS)
+	switch (sdata->vif.bss_conf.chandef.width) {
+	case NL80211_CHAN_WIDTH_40:
+		if (sdata->vif.bss_conf.chandef.chan->center_freq >
+				sdata->vif.bss_conf.chandef.center_freq1 &&
+		    chan->flags & IEEE80211_CHAN_NO_HT40PLUS)
 			disable_40 = true;
-		break;
-	case NL80211_CHAN_HT40MINUS:
-		if (local->oper_channel->flags & IEEE80211_CHAN_NO_HT40MINUS)
+		if (sdata->vif.bss_conf.chandef.chan->center_freq <
+				sdata->vif.bss_conf.chandef.center_freq1 &&
+		    chan->flags & IEEE80211_CHAN_NO_HT40MINUS)
 			disable_40 = true;
 		break;
 	default:
@@ -342,8 +354,18 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata,
 	/* determine capability flags */
 	cap = vht_cap.cap;
 
+	if (sdata->u.mgd.flags & IEEE80211_STA_DISABLE_80P80MHZ) {
+		cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
+		cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
+	}
+
+	if (sdata->u.mgd.flags & IEEE80211_STA_DISABLE_160MHZ) {
+		cap &= ~IEEE80211_VHT_CAP_SHORT_GI_160;
+		cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
+	}
+
 	/* reserve and fill IE */
-	pos = skb_put(skb, sizeof(struct ieee80211_vht_capabilities) + 2);
+	pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2);
 	ieee80211_ie_build_vht_cap(pos, &vht_cap, cap);
 }
 
@@ -359,11 +381,21 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 	int i, count, rates_len, supp_rates_len;
 	u16 capab;
 	struct ieee80211_supported_band *sband;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_channel *chan;
 	u32 rates = 0;
 
 	lockdep_assert_held(&ifmgd->mtx);
 
-	sband = local->hw.wiphy->bands[local->oper_channel->band];
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (WARN_ON(!chanctx_conf)) {
+		rcu_read_unlock();
+		return;
+	}
+	chan = chanctx_conf->def.chan;
+	rcu_read_unlock();
+	sband = local->hw.wiphy->bands[chan->band];
 
 	if (assoc_data->supp_rates_len) {
 		/*
@@ -392,7 +424,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 			4 + /* power capability */
 			2 + 2 * sband->n_channels + /* supported channels */
 			2 + sizeof(struct ieee80211_ht_cap) + /* HT */
-			2 + sizeof(struct ieee80211_vht_capabilities) + /* VHT */
+			2 + sizeof(struct ieee80211_vht_cap) + /* VHT */
 			assoc_data->ie_len + /* extra IEs */
 			9, /* WMM */
 			GFP_KERNEL);
@@ -485,7 +517,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 		*pos++ = WLAN_EID_PWR_CAPABILITY;
 		*pos++ = 2;
 		*pos++ = 0; /* min tx power */
-		*pos++ = local->oper_channel->max_power; /* max tx power */
+		*pos++ = chan->max_power; /* max tx power */
 
 		/* 2. supported channels */
 		/* TODO: get this in reg domain format */
@@ -521,9 +553,13 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 		offset = noffset;
 	}
 
-	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
+	if (WARN_ON_ONCE((ifmgd->flags & IEEE80211_STA_DISABLE_HT) &&
+			 !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)))
+		ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
+
+	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT))
 		ieee80211_add_ht_ie(sdata, skb, assoc_data->ap_ht_param,
-				    sband, local->oper_channel, ifmgd->ap_smps);
+				    sband, chan, sdata->smps_mode);
 
 	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
 		ieee80211_add_vht_ie(sdata, skb, sband);
@@ -657,18 +693,18 @@ static void ieee80211_chswitch_work(struct work_struct *work)
 	if (!ifmgd->associated)
 		goto out;
 
-	sdata->local->oper_channel = sdata->local->csa_channel;
+	sdata->local->_oper_channel = sdata->local->csa_channel;
 	if (!sdata->local->ops->channel_switch) {
 		/* call "hw_config" only if doing sw channel switch */
 		ieee80211_hw_config(sdata->local,
 			IEEE80211_CONF_CHANGE_CHANNEL);
 	} else {
 		/* update the device channel directly */
-		sdata->local->hw.conf.channel = sdata->local->oper_channel;
+		sdata->local->hw.conf.channel = sdata->local->_oper_channel;
 	}
 
 	/* XXX: shouldn't really modify cfg80211-owned data! */
-	ifmgd->associated->channel = sdata->local->oper_channel;
+	ifmgd->associated->channel = sdata->local->_oper_channel;
 
 	/* XXX: wait for a beacon first? */
 	ieee80211_wake_queues_by_reason(&sdata->local->hw,
@@ -680,11 +716,8 @@ static void ieee80211_chswitch_work(struct work_struct *work)
 
 void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success)
 {
-	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_if_managed *ifmgd;
-
-	sdata = vif_to_sdata(vif);
-	ifmgd = &sdata->u.mgd;
+	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
 	trace_api_chswitch_done(sdata, success);
 	if (!success) {
@@ -723,6 +756,7 @@ void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num,
 						      cbss->channel->band);
+	struct ieee80211_chanctx *chanctx;
 
 	ASSERT_MGD_MTX(ifmgd);
 
@@ -748,10 +782,35 @@ void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 		return;
 	}
 
-	sdata->local->csa_channel = new_ch;
-
 	ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
 
+	if (sdata->local->use_chanctx) {
+		sdata_info(sdata,
+			   "not handling channel switch with channel contexts\n");
+		ieee80211_queue_work(&sdata->local->hw,
+				     &ifmgd->csa_connection_drop_work);
+		return;
+	}
+
+	mutex_lock(&sdata->local->chanctx_mtx);
+	if (WARN_ON(!rcu_access_pointer(sdata->vif.chanctx_conf))) {
+		mutex_unlock(&sdata->local->chanctx_mtx);
+		return;
+	}
+	chanctx = container_of(rcu_access_pointer(sdata->vif.chanctx_conf),
+			       struct ieee80211_chanctx, conf);
+	if (chanctx->refcount > 1) {
+		sdata_info(sdata,
+			   "channel switch with multiple interfaces on the same channel, disconnecting\n");
+		ieee80211_queue_work(&sdata->local->hw,
+				     &ifmgd->csa_connection_drop_work);
+		mutex_unlock(&sdata->local->chanctx_mtx);
+		return;
+	}
+	mutex_unlock(&sdata->local->chanctx_mtx);
+
+	sdata->local->csa_channel = new_ch;
+
 	if (sw_elem->mode)
 		ieee80211_stop_queues_by_reason(&sdata->local->hw,
 				IEEE80211_QUEUE_STOP_REASON_CSA);
@@ -778,10 +837,10 @@ void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 					 cbss->beacon_interval));
 }
 
-static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
-					struct ieee80211_channel *channel,
-					const u8 *country_ie, u8 country_ie_len,
-					const u8 *pwr_constr_elem)
+static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
+				       struct ieee80211_channel *channel,
+				       const u8 *country_ie, u8 country_ie_len,
+				       const u8 *pwr_constr_elem)
 {
 	struct ieee80211_country_ie_triplet *triplet;
 	int chan = ieee80211_frequency_to_channel(channel->center_freq);
@@ -790,7 +849,7 @@ static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
 
 	/* Invalid IE */
 	if (country_ie_len % 2 || country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN)
-		return;
+		return 0;
 
 	triplet = (void *)(country_ie + 3);
 	country_ie_len -= 3;
@@ -831,19 +890,21 @@ static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
 	}
 
 	if (!have_chan_pwr)
-		return;
+		return 0;
 
 	new_ap_level = max_t(int, 0, chan_pwr - *pwr_constr_elem);
 
-	if (sdata->local->ap_power_level == new_ap_level)
-		return;
+	if (sdata->ap_power_level == new_ap_level)
+		return 0;
 
 	sdata_info(sdata,
 		   "Limiting TX power to %d (%d - %d) dBm as advertised by %pM\n",
 		   new_ap_level, chan_pwr, *pwr_constr_elem,
 		   sdata->u.mgd.bssid);
-	sdata->local->ap_power_level = new_ap_level;
-	ieee80211_hw_config(sdata->local, 0);
+	sdata->ap_power_level = new_ap_level;
+	if (__ieee80211_recalc_txpower(sdata))
+		return BSS_CHANGED_TXPOWER;
+	return 0;
 }
 
 void ieee80211_enable_dyn_ps(struct ieee80211_vif *vif)
@@ -1280,7 +1341,7 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
 	}
 
 	use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME);
-	if (sdata->local->oper_channel->band == IEEE80211_BAND_5GHZ)
+	if (ieee80211_get_sdata_band(sdata) == IEEE80211_BAND_5GHZ)
 		use_short_slot = true;
 
 	if (use_protection != bss_conf->use_cts_prot) {
@@ -1321,6 +1382,29 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 
 	sdata->u.mgd.flags |= IEEE80211_STA_RESET_SIGNAL_AVE;
 
+	if (sdata->vif.p2p) {
+		const struct cfg80211_bss_ies *ies;
+
+		rcu_read_lock();
+		ies = rcu_dereference(cbss->ies);
+		if (ies) {
+			u8 noa[2];
+			int ret;
+
+			ret = cfg80211_get_p2p_attr(
+					ies->data, ies->len,
+					IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
+					noa, sizeof(noa));
+			if (ret >= 2) {
+				bss_conf->p2p_oppps = noa[1] & 0x80;
+				bss_conf->p2p_ctwindow = noa[1] & 0x7f;
+				bss_info_changed |= BSS_CHANGED_P2P_PS;
+				sdata->u.mgd.p2p_noa_index = noa[0];
+			}
+		}
+		rcu_read_unlock();
+	}
+
 	/* just to be sure */
 	ieee80211_stop_poll(sdata);
 
@@ -1350,7 +1434,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 	ieee80211_recalc_ps(local, -1);
 	mutex_unlock(&local->iflist_mtx);
 
-	ieee80211_recalc_smps(local);
+	ieee80211_recalc_smps(sdata);
 	ieee80211_recalc_ps_vif(sdata);
 
 	netif_tx_start_all_queues(sdata->dev);
@@ -1443,11 +1527,14 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	changed |= BSS_CHANGED_ASSOC;
 	sdata->vif.bss_conf.assoc = false;
 
+	sdata->vif.bss_conf.p2p_ctwindow = 0;
+	sdata->vif.bss_conf.p2p_oppps = false;
+
 	/* on the next assoc, re-program HT parameters */
 	memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa));
 	memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask));
 
-	local->ap_power_level = 0;
+	sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL;
 
 	del_timer_sync(&local->dynamic_ps_timer);
 	cancel_work_sync(&local->dynamic_ps_enable_work);
@@ -1465,10 +1552,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT;
 	ieee80211_bss_info_change_notify(sdata, changed);
 
-	/* channel(_type) changes are handled by ieee80211_hw_config */
-	WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT));
-	ieee80211_hw_config(local, 0);
-
 	/* disassociated - set to defaults now */
 	ieee80211_set_wmm_default(sdata, false);
 
@@ -1478,6 +1561,9 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	del_timer_sync(&sdata->u.mgd.chswitch_timer);
 
 	sdata->u.mgd.timers_running = 0;
+
+	ifmgd->flags = 0;
+	ieee80211_vif_release_channel(sdata);
 }
 
 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
@@ -1581,6 +1667,7 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
 	} else {
 		int ssid_len;
 
+		rcu_read_lock();
 		ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID);
 		if (WARN_ON_ONCE(ssid == NULL))
 			ssid_len = 0;
@@ -1589,7 +1676,8 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
 
 		ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid_len, NULL,
 					 0, (u32) -1, true, false,
-					 ifmgd->associated->channel);
+					 ifmgd->associated->channel, false);
+		rcu_read_unlock();
 	}
 
 	ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms);
@@ -1685,6 +1773,7 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
 	else
 		return NULL;
 
+	rcu_read_lock();
 	ssid = ieee80211_bss_get_ie(cbss, WLAN_EID_SSID);
 	if (WARN_ON_ONCE(ssid == NULL))
 		ssid_len = 0;
@@ -1692,10 +1781,10 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
 		ssid_len = ssid[1];
 
 	skb = ieee80211_build_probe_req(sdata, cbss->bssid,
-					(u32) -1,
-					sdata->local->oper_channel,
+					(u32) -1, cbss->channel,
 					ssid + 2, ssid_len,
 					NULL, 0, true);
+	rcu_read_unlock();
 
 	return skb;
 }
@@ -1804,6 +1893,8 @@ static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata,
 
 		memset(sdata->u.mgd.bssid, 0, ETH_ALEN);
 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
+		sdata->u.mgd.flags = 0;
+		ieee80211_vif_release_channel(sdata);
 	}
 
 	cfg80211_put_bss(auth_data->bss);
@@ -1824,7 +1915,7 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
 		return;
 	auth_data->expected_transaction = 4;
 	drv_mgd_prepare_tx(sdata->local, sdata);
-	ieee80211_send_auth(sdata, 3, auth_data->algorithm,
+	ieee80211_send_auth(sdata, 3, auth_data->algorithm, 0,
 			    elems.challenge - 2, elems.challenge_len + 2,
 			    auth_data->bss->bssid, auth_data->bss->bssid,
 			    auth_data->key, auth_data->key_len,
@@ -1858,8 +1949,13 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 	status_code = le16_to_cpu(mgmt->u.auth.status_code);
 
 	if (auth_alg != ifmgd->auth_data->algorithm ||
-	    auth_transaction != ifmgd->auth_data->expected_transaction)
+	    auth_transaction != ifmgd->auth_data->expected_transaction) {
+		sdata_info(sdata, "%pM unexpected authentication state: alg %d (expected %d) transact %d (expected %d)\n",
+			   mgmt->sa, auth_alg, ifmgd->auth_data->algorithm,
+			   auth_transaction,
+			   ifmgd->auth_data->expected_transaction);
 		return RX_MGMT_NONE;
+	}
 
 	if (status_code != WLAN_STATUS_SUCCESS) {
 		sdata_info(sdata, "%pM denied authentication (status %d)\n",
@@ -1872,6 +1968,7 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 	case WLAN_AUTH_OPEN:
 	case WLAN_AUTH_LEAP:
 	case WLAN_AUTH_FT:
+	case WLAN_AUTH_SAE:
 		break;
 	case WLAN_AUTH_SHARED_KEY:
 		if (ifmgd->auth_data->expected_transaction != 4) {
@@ -1891,6 +1988,15 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 	ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC;
 	run_again(ifmgd, ifmgd->auth_data->timeout);
 
+	if (ifmgd->auth_data->algorithm == WLAN_AUTH_SAE &&
+	    ifmgd->auth_data->expected_transaction != 2) {
+		/*
+		 * Report auth frame to user space for processing since another
+		 * round of Authentication frames is still needed.
+		 */
+		return RX_MGMT_CFG80211_RX_AUTH;
+	}
+
 	/* move station state to auth */
 	mutex_lock(&sdata->local->sta_mtx);
 	sta = sta_info_get(sdata, bssid);
@@ -2030,6 +2136,8 @@ static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata,
 
 		memset(sdata->u.mgd.bssid, 0, ETH_ALEN);
 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
+		sdata->u.mgd.flags = 0;
+		ieee80211_vif_release_channel(sdata);
 	}
 
 	kfree(assoc_data);
@@ -2091,15 +2199,20 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 		return false;
 	}
 
-	sband = local->hw.wiphy->bands[local->oper_channel->band];
+	sband = local->hw.wiphy->bands[ieee80211_get_sdata_band(sdata)];
 
-	if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
+	if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_HT))
 		ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
 				elems.ht_cap_elem, &sta->sta.ht_cap);
 
 	sta->supports_40mhz =
 		sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 
+	if (elems.vht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
+		ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
+						    elems.vht_cap_elem,
+						    &sta->sta.vht_cap);
+
 	rate_control_rate_init(sta);
 
 	if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED)
@@ -2140,7 +2253,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 	changed |= BSS_CHANGED_QOS;
 
 	if (elems.ht_operation && elems.wmm_param &&
-	    !(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
+	    !(ifmgd->flags & IEEE80211_STA_DISABLE_HT))
 		changed |= ieee80211_config_ht_tx(sdata, elems.ht_operation,
 						  cbss->bssid, false);
 
@@ -2247,9 +2360,9 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 
 	return RX_MGMT_CFG80211_RX_ASSOC;
 }
+
 static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
-				  struct ieee80211_mgmt *mgmt,
-				  size_t len,
+				  struct ieee80211_mgmt *mgmt, size_t len,
 				  struct ieee80211_rx_status *rx_status,
 				  struct ieee802_11_elems *elems,
 				  bool beacon)
@@ -2369,8 +2482,10 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	size_t baselen;
 	struct ieee802_11_elems elems;
 	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_channel *chan;
 	u32 changed = 0;
-	bool erp_valid, directed_tim = false;
+	bool erp_valid;
 	u8 erp_value = 0;
 	u32 ncrc;
 	u8 *bssid;
@@ -2382,8 +2497,19 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	if (baselen > len)
 		return;
 
-	if (rx_status->freq != local->oper_channel->center_freq)
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (!chanctx_conf) {
+		rcu_read_unlock();
+		return;
+	}
+
+	if (rx_status->freq != chanctx_conf->def.chan->center_freq) {
+		rcu_read_unlock();
 		return;
+	}
+	chan = chanctx_conf->def.chan;
+	rcu_read_unlock();
 
 	if (ifmgd->assoc_data && !ifmgd->assoc_data->have_beacon &&
 	    ether_addr_equal(mgmt->bssid, ifmgd->assoc_data->bss->bssid)) {
@@ -2490,11 +2616,10 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 					  len - baselen, &elems,
 					  care_about_ies, ncrc);
 
-	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
-		directed_tim = ieee80211_check_tim(elems.tim, elems.tim_len,
-						   ifmgd->aid);
-
 	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) {
+		bool directed_tim = ieee80211_check_tim(elems.tim,
+							elems.tim_len,
+							ifmgd->aid);
 		if (directed_tim) {
 			if (local->hw.conf.dynamic_ps_timeout > 0) {
 				if (local->hw.conf.flags & IEEE80211_CONF_PS) {
@@ -2519,6 +2644,27 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 		}
 	}
 
+	if (sdata->vif.p2p) {
+		u8 noa[2];
+		int ret;
+
+		ret = cfg80211_get_p2p_attr(mgmt->u.beacon.variable,
+					    len - baselen,
+					    IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
+					    noa, sizeof(noa));
+		if (ret >= 2 && sdata->u.mgd.p2p_noa_index != noa[0]) {
+			bss_conf->p2p_oppps = noa[1] & 0x80;
+			bss_conf->p2p_ctwindow = noa[1] & 0x7f;
+			changed |= BSS_CHANGED_P2P_PS;
+			sdata->u.mgd.p2p_noa_index = noa[0];
+			/*
+			 * make sure we update all information, the CRC
+			 * mechanism doesn't look at P2P attributes.
+			 */
+			ifmgd->beacon_crc_valid = false;
+		}
+	}
+
 	if (ncrc == ifmgd->beacon_crc && ifmgd->beacon_crc_valid)
 		return;
 	ifmgd->beacon_crc = ncrc;
@@ -2543,22 +2689,17 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 
 
 	if (elems.ht_cap_elem && elems.ht_operation && elems.wmm_param &&
-	    !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) {
-		struct ieee80211_supported_band *sband;
-
-		sband = local->hw.wiphy->bands[local->oper_channel->band];
-
+	    !(ifmgd->flags & IEEE80211_STA_DISABLE_HT))
 		changed |= ieee80211_config_ht_tx(sdata, elems.ht_operation,
 						  bssid, true);
-	}
 
 	if (elems.country_elem && elems.pwr_constr_elem &&
 	    mgmt->u.probe_resp.capab_info &
 				cpu_to_le16(WLAN_CAPABILITY_SPECTRUM_MGMT))
-		ieee80211_handle_pwr_constr(sdata, local->oper_channel,
-					    elems.country_elem,
-					    elems.country_elem_len,
-					    elems.pwr_constr_elem);
+		changed |= ieee80211_handle_pwr_constr(sdata, chan,
+						       elems.country_elem,
+						       elems.country_elem_len,
+						       elems.pwr_constr_elem);
 
 	ieee80211_bss_info_change_notify(sdata, changed);
 }
@@ -2703,13 +2844,23 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
 	drv_mgd_prepare_tx(local, sdata);
 
 	if (auth_data->bss->proberesp_ies) {
+		u16 trans = 1;
+		u16 status = 0;
+
 		sdata_info(sdata, "send auth to %pM (try %d/%d)\n",
 			   auth_data->bss->bssid, auth_data->tries,
 			   IEEE80211_AUTH_MAX_TRIES);
 
 		auth_data->expected_transaction = 2;
-		ieee80211_send_auth(sdata, 1, auth_data->algorithm,
-				    auth_data->ie, auth_data->ie_len,
+
+		if (auth_data->algorithm == WLAN_AUTH_SAE) {
+			trans = auth_data->sae_trans;
+			status = auth_data->sae_status;
+			auth_data->expected_transaction = trans;
+		}
+
+		ieee80211_send_auth(sdata, trans, auth_data->algorithm, status,
+				    auth_data->data, auth_data->data_len,
 				    auth_data->bss->bssid,
 				    auth_data->bss->bssid, NULL, 0, 0);
 	} else {
@@ -2719,16 +2870,20 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
 			   auth_data->bss->bssid, auth_data->tries,
 			   IEEE80211_AUTH_MAX_TRIES);
 
+		rcu_read_lock();
 		ssidie = ieee80211_bss_get_ie(auth_data->bss, WLAN_EID_SSID);
-		if (!ssidie)
+		if (!ssidie) {
+			rcu_read_unlock();
 			return -EINVAL;
+		}
 		/*
 		 * Direct probe is sent to broadcast address as some APs
 		 * will not answer to direct packet in unassociated state.
 		 */
 		ieee80211_send_probe_req(sdata, NULL, ssidie + 2, ssidie[1],
 					 NULL, 0, (u32) -1, true, false,
-					 auth_data->bss->channel);
+					 auth_data->bss->channel, false);
+		rcu_read_unlock();
 	}
 
 	auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT;
@@ -3058,90 +3213,313 @@ int ieee80211_max_network_latency(struct notifier_block *nb,
 	return 0;
 }
 
+static u32 chandef_downgrade(struct cfg80211_chan_def *c)
+{
+	u32 ret;
+	int tmp;
+
+	switch (c->width) {
+	case NL80211_CHAN_WIDTH_20:
+		c->width = NL80211_CHAN_WIDTH_20_NOHT;
+		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+		break;
+	case NL80211_CHAN_WIDTH_40:
+		c->width = NL80211_CHAN_WIDTH_20;
+		c->center_freq1 = c->chan->center_freq;
+		ret = IEEE80211_STA_DISABLE_40MHZ |
+		      IEEE80211_STA_DISABLE_VHT;
+		break;
+	case NL80211_CHAN_WIDTH_80:
+		tmp = (30 + c->chan->center_freq - c->center_freq1)/20;
+		/* n_P40 */
+		tmp /= 2;
+		/* freq_P40 */
+		c->center_freq1 = c->center_freq1 - 20 + 40 * tmp;
+		c->width = NL80211_CHAN_WIDTH_40;
+		ret = IEEE80211_STA_DISABLE_VHT;
+		break;
+	case NL80211_CHAN_WIDTH_80P80:
+		c->center_freq2 = 0;
+		c->width = NL80211_CHAN_WIDTH_80;
+		ret = IEEE80211_STA_DISABLE_80P80MHZ |
+		      IEEE80211_STA_DISABLE_160MHZ;
+		break;
+	case NL80211_CHAN_WIDTH_160:
+		/* n_P20 */
+		tmp = (70 + c->chan->center_freq - c->center_freq1)/20;
+		/* n_P80 */
+		tmp /= 4;
+		c->center_freq1 = c->center_freq1 - 40 + 80 * tmp;
+		c->width = NL80211_CHAN_WIDTH_80;
+		ret = IEEE80211_STA_DISABLE_80P80MHZ |
+		      IEEE80211_STA_DISABLE_160MHZ;
+		break;
+	default:
+	case NL80211_CHAN_WIDTH_20_NOHT:
+		WARN_ON_ONCE(1);
+		c->width = NL80211_CHAN_WIDTH_20_NOHT;
+		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+		break;
+	}
+
+	WARN_ON_ONCE(!cfg80211_chandef_valid(c));
+
+	return ret;
+}
+
+static u32
+ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
+			     struct ieee80211_supported_band *sband,
+			     struct ieee80211_channel *channel,
+			     const struct ieee80211_ht_operation *ht_oper,
+			     const struct ieee80211_vht_operation *vht_oper,
+			     struct cfg80211_chan_def *chandef)
+{
+	struct cfg80211_chan_def vht_chandef;
+	u32 ht_cfreq, ret;
+
+	chandef->chan = channel;
+	chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
+	chandef->center_freq1 = channel->center_freq;
+	chandef->center_freq2 = 0;
+
+	if (!ht_oper || !sband->ht_cap.ht_supported) {
+		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+		goto out;
+	}
+
+	chandef->width = NL80211_CHAN_WIDTH_20;
+
+	ht_cfreq = ieee80211_channel_to_frequency(ht_oper->primary_chan,
+						  channel->band);
+	/* check that channel matches the right operating channel */
+	if (channel->center_freq != ht_cfreq) {
+		/*
+		 * It's possible that some APs are confused here;
+		 * Netgear WNDR3700 sometimes reports 4 higher than
+		 * the actual channel in association responses, but
+		 * since we look at probe response/beacon data here
+		 * it should be OK.
+		 */
+		sdata_info(sdata,
+			   "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n",
+			   channel->center_freq, ht_cfreq,
+			   ht_oper->primary_chan, channel->band);
+		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+		goto out;
+	}
+
+	/* check 40 MHz support, if we have it */
+	if (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
+		switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
+		case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+			chandef->width = NL80211_CHAN_WIDTH_40;
+			chandef->center_freq1 += 10;
+			break;
+		case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+			chandef->width = NL80211_CHAN_WIDTH_40;
+			chandef->center_freq1 -= 10;
+			break;
+		}
+	} else {
+		/* 40 MHz (and 80 MHz) must be supported for VHT */
+		ret = IEEE80211_STA_DISABLE_VHT;
+		goto out;
+	}
+
+	if (!vht_oper || !sband->vht_cap.vht_supported) {
+		ret = IEEE80211_STA_DISABLE_VHT;
+		goto out;
+	}
+
+	vht_chandef.chan = channel;
+	vht_chandef.center_freq1 =
+		ieee80211_channel_to_frequency(vht_oper->center_freq_seg1_idx,
+					       channel->band);
+	vht_chandef.center_freq2 = 0;
+
+	if (vht_oper->center_freq_seg2_idx)
+		vht_chandef.center_freq2 =
+			ieee80211_channel_to_frequency(
+				vht_oper->center_freq_seg2_idx,
+				channel->band);
+
+	switch (vht_oper->chan_width) {
+	case IEEE80211_VHT_CHANWIDTH_USE_HT:
+		vht_chandef.width = chandef->width;
+		break;
+	case IEEE80211_VHT_CHANWIDTH_80MHZ:
+		vht_chandef.width = NL80211_CHAN_WIDTH_80;
+		break;
+	case IEEE80211_VHT_CHANWIDTH_160MHZ:
+		vht_chandef.width = NL80211_CHAN_WIDTH_160;
+		break;
+	case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
+		vht_chandef.width = NL80211_CHAN_WIDTH_80P80;
+		break;
+	default:
+		sdata_info(sdata,
+			   "AP VHT operation IE has invalid channel width (%d), disable VHT\n",
+			   vht_oper->chan_width);
+		ret = IEEE80211_STA_DISABLE_VHT;
+		goto out;
+	}
+
+	if (!cfg80211_chandef_valid(&vht_chandef)) {
+		sdata_info(sdata,
+			   "AP VHT information is invalid, disable VHT\n");
+		ret = IEEE80211_STA_DISABLE_VHT;
+		goto out;
+	}
+
+	if (cfg80211_chandef_identical(chandef, &vht_chandef)) {
+		ret = 0;
+		goto out;
+	}
+
+	if (!cfg80211_chandef_compatible(chandef, &vht_chandef)) {
+		sdata_info(sdata,
+			   "AP VHT information doesn't match HT, disable VHT\n");
+		ret = IEEE80211_STA_DISABLE_VHT;
+		goto out;
+	}
+
+	*chandef = vht_chandef;
+
+	ret = 0;
+
+	while (!cfg80211_chandef_usable(sdata->local->hw.wiphy, chandef,
+					IEEE80211_CHAN_DISABLED)) {
+		if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) {
+			ret = IEEE80211_STA_DISABLE_HT |
+			      IEEE80211_STA_DISABLE_VHT;
+			goto out;
+		}
+
+		ret = chandef_downgrade(chandef);
+	}
+
+	if (chandef->width != vht_chandef.width)
+		sdata_info(sdata,
+			   "local regulatory prevented using AP HT/VHT configuration, downgraded\n");
+
+out:
+	WARN_ON_ONCE(!cfg80211_chandef_valid(chandef));
+	return ret;
+}
+
+static u8 ieee80211_ht_vht_rx_chains(struct ieee80211_sub_if_data *sdata,
+				     struct cfg80211_bss *cbss)
+{
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+	const u8 *ht_cap_ie, *vht_cap_ie;
+	const struct ieee80211_ht_cap *ht_cap;
+	const struct ieee80211_vht_cap *vht_cap;
+	u8 chains = 1;
+
+	if (ifmgd->flags & IEEE80211_STA_DISABLE_HT)
+		return chains;
+
+	ht_cap_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_HT_CAPABILITY);
+	if (ht_cap_ie && ht_cap_ie[1] >= sizeof(*ht_cap)) {
+		ht_cap = (void *)(ht_cap_ie + 2);
+		chains = ieee80211_mcs_to_chains(&ht_cap->mcs);
+		/*
+		 * TODO: use "Tx Maximum Number Spatial Streams Supported" and
+		 *	 "Tx Unequal Modulation Supported" fields.
+		 */
+	}
+
+	if (ifmgd->flags & IEEE80211_STA_DISABLE_VHT)
+		return chains;
+
+	vht_cap_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_VHT_CAPABILITY);
+	if (vht_cap_ie && vht_cap_ie[1] >= sizeof(*vht_cap)) {
+		u8 nss;
+		u16 tx_mcs_map;
+
+		vht_cap = (void *)(vht_cap_ie + 2);
+		tx_mcs_map = le16_to_cpu(vht_cap->supp_mcs.tx_mcs_map);
+		for (nss = 8; nss > 0; nss--) {
+			if (((tx_mcs_map >> (2 * (nss - 1))) & 3) !=
+					IEEE80211_VHT_MCS_NOT_SUPPORTED)
+				break;
+		}
+		/* TODO: use "Tx Highest Supported Long GI Data Rate" field? */
+		chains = max(chains, nss);
+	}
+
+	return chains;
+}
+
 static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
 				  struct cfg80211_bss *cbss)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-	int ht_cfreq;
-	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
-	const u8 *ht_oper_ie;
 	const struct ieee80211_ht_operation *ht_oper = NULL;
+	const struct ieee80211_vht_operation *vht_oper = NULL;
 	struct ieee80211_supported_band *sband;
+	struct cfg80211_chan_def chandef;
+	int ret;
 
 	sband = local->hw.wiphy->bands[cbss->channel->band];
 
-	ifmgd->flags &= ~IEEE80211_STA_DISABLE_40MHZ;
+	ifmgd->flags &= ~(IEEE80211_STA_DISABLE_40MHZ |
+			  IEEE80211_STA_DISABLE_80P80MHZ |
+			  IEEE80211_STA_DISABLE_160MHZ);
+
+	rcu_read_lock();
+
+	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT) &&
+	    sband->ht_cap.ht_supported) {
+		const u8 *ht_oper_ie;
 
-	if (sband->ht_cap.ht_supported) {
-		ht_oper_ie = cfg80211_find_ie(WLAN_EID_HT_OPERATION,
-					      cbss->information_elements,
-					      cbss->len_information_elements);
+		ht_oper_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_HT_OPERATION);
 		if (ht_oper_ie && ht_oper_ie[1] >= sizeof(*ht_oper))
 			ht_oper = (void *)(ht_oper_ie + 2);
 	}
 
-	if (ht_oper) {
-		ht_cfreq = ieee80211_channel_to_frequency(ht_oper->primary_chan,
-							  cbss->channel->band);
-		/* check that channel matches the right operating channel */
-		if (cbss->channel->center_freq != ht_cfreq) {
-			/*
-			 * It's possible that some APs are confused here;
-			 * Netgear WNDR3700 sometimes reports 4 higher than
-			 * the actual channel in association responses, but
-			 * since we look at probe response/beacon data here
-			 * it should be OK.
-			 */
+	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) &&
+	    sband->vht_cap.vht_supported) {
+		const u8 *vht_oper_ie;
+
+		vht_oper_ie = ieee80211_bss_get_ie(cbss,
+						   WLAN_EID_VHT_OPERATION);
+		if (vht_oper_ie && vht_oper_ie[1] >= sizeof(*vht_oper))
+			vht_oper = (void *)(vht_oper_ie + 2);
+		if (vht_oper && !ht_oper) {
+			vht_oper = NULL;
 			sdata_info(sdata,
-				   "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n",
-				   cbss->channel->center_freq,
-				   ht_cfreq, ht_oper->primary_chan,
-				   cbss->channel->band);
-			ht_oper = NULL;
-		} else {
-			channel_type = NL80211_CHAN_HT20;
+				   "AP advertised VHT without HT, disabling both\n");
+			sdata->flags |= IEEE80211_STA_DISABLE_HT;
+			sdata->flags |= IEEE80211_STA_DISABLE_VHT;
 		}
 	}
 
-	if (ht_oper && sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
-		/*
-		 * cfg80211 already verified that the channel itself can
-		 * be used, but it didn't check that we can do the right
-		 * HT type, so do that here as well. If HT40 isn't allowed
-		 * on this channel, disable 40 MHz operation.
-		 */
+	ifmgd->flags |= ieee80211_determine_chantype(sdata, sband,
+						     cbss->channel,
+						     ht_oper, vht_oper,
+						     &chandef);
 
-		switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
-		case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
-			if (cbss->channel->flags & IEEE80211_CHAN_NO_HT40PLUS)
-				ifmgd->flags |= IEEE80211_STA_DISABLE_40MHZ;
-			else
-				channel_type = NL80211_CHAN_HT40PLUS;
-			break;
-		case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
-			if (cbss->channel->flags & IEEE80211_CHAN_NO_HT40MINUS)
-				ifmgd->flags |= IEEE80211_STA_DISABLE_40MHZ;
-			else
-				channel_type = NL80211_CHAN_HT40MINUS;
-			break;
-		}
-	}
+	sdata->needed_rx_chains = min(ieee80211_ht_vht_rx_chains(sdata, cbss),
+				      local->rx_chains);
 
-	if (!ieee80211_set_channel_type(local, sdata, channel_type)) {
-		/* can only fail due to HT40+/- mismatch */
-		channel_type = NL80211_CHAN_HT20;
-		sdata_info(sdata,
-			   "disabling 40 MHz due to multi-vif mismatch\n");
-		ifmgd->flags |= IEEE80211_STA_DISABLE_40MHZ;
-		WARN_ON(!ieee80211_set_channel_type(local, sdata,
-						    channel_type));
-	}
+	rcu_read_unlock();
 
-	local->oper_channel = cbss->channel;
-	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+	/* will change later if needed */
+	sdata->smps_mode = IEEE80211_SMPS_OFF;
 
-	return 0;
+	/*
+	 * If this fails (possibly due to channel context sharing
+	 * on incompatible channels, e.g. 80+80 and 160 sharing the
+	 * same control channel) try to use a smaller bandwidth.
+	 */
+	ret = ieee80211_vif_use_channel(sdata, &chandef,
+					IEEE80211_CHANCTX_SHARED);
+	while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT)
+		ifmgd->flags |= chandef_downgrade(&chandef);
+	return ret;
 }
 
 static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
@@ -3211,7 +3589,7 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
 		sdata->vif.bss_conf.basic_rates = basic_rates;
 
 		/* cf. IEEE 802.11 9.2.12 */
-		if (local->oper_channel->band == IEEE80211_BAND_2GHZ &&
+		if (cbss->channel->band == IEEE80211_BAND_2GHZ &&
 		    have_higher_than_11mbit)
 			sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
 		else
@@ -3273,19 +3651,33 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 	case NL80211_AUTHTYPE_NETWORK_EAP:
 		auth_alg = WLAN_AUTH_LEAP;
 		break;
+	case NL80211_AUTHTYPE_SAE:
+		auth_alg = WLAN_AUTH_SAE;
+		break;
 	default:
 		return -EOPNOTSUPP;
 	}
 
-	auth_data = kzalloc(sizeof(*auth_data) + req->ie_len, GFP_KERNEL);
+	auth_data = kzalloc(sizeof(*auth_data) + req->sae_data_len +
+			    req->ie_len, GFP_KERNEL);
 	if (!auth_data)
 		return -ENOMEM;
 
 	auth_data->bss = req->bss;
 
+	if (req->sae_data_len >= 4) {
+		__le16 *pos = (__le16 *) req->sae_data;
+		auth_data->sae_trans = le16_to_cpu(pos[0]);
+		auth_data->sae_status = le16_to_cpu(pos[1]);
+		memcpy(auth_data->data, req->sae_data + 4,
+		       req->sae_data_len - 4);
+		auth_data->data_len += req->sae_data_len - 4;
+	}
+
 	if (req->ie && req->ie_len) {
-		memcpy(auth_data->ie, req->ie, req->ie_len);
-		auth_data->ie_len = req->ie_len;
+		memcpy(&auth_data->data[auth_data->data_len],
+		       req->ie, req->ie_len);
+		auth_data->data_len += req->ie_len;
 	}
 
 	if (req->key && req->key_len) {
@@ -3355,14 +3747,21 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	const u8 *ssidie, *ht_ie;
 	int i, err;
 
-	ssidie = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID);
-	if (!ssidie)
-		return -EINVAL;
-
 	assoc_data = kzalloc(sizeof(*assoc_data) + req->ie_len, GFP_KERNEL);
 	if (!assoc_data)
 		return -ENOMEM;
 
+	rcu_read_lock();
+	ssidie = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID);
+	if (!ssidie) {
+		rcu_read_unlock();
+		kfree(assoc_data);
+		return -EINVAL;
+	}
+	memcpy(assoc_data->ssid, ssidie + 2, ssidie[1]);
+	assoc_data->ssid_len = ssidie[1];
+	rcu_read_unlock();
+
 	mutex_lock(&ifmgd->mtx);
 
 	if (ifmgd->associated)
@@ -3388,13 +3787,6 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 
 	/* prepare assoc data */
 	
-	/*
-	 * keep only the 40 MHz disable bit set as it might have
-	 * been set during authentication already, all other bits
-	 * should be reset for a new connection
-	 */
-	ifmgd->flags &= IEEE80211_STA_DISABLE_40MHZ;
-
 	ifmgd->beacon_crc_valid = false;
 
 	/*
@@ -3408,7 +3800,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 		if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 ||
 		    req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP ||
 		    req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) {
-			ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
+			ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
 			ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
 			netdev_info(sdata->dev,
 				    "disabling HT/VHT due to WEP/TKIP use\n");
@@ -3416,7 +3808,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	}
 
 	if (req->flags & ASSOC_REQ_DISABLE_HT) {
-		ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
+		ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
 		ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
 	}
 
@@ -3424,7 +3816,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	sband = local->hw.wiphy->bands[req->bss->channel->band];
 	if (!sband->ht_cap.ht_supported ||
 	    local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used) {
-		ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
+		ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
 		if (!bss->wmm_used)
 			netdev_info(sdata->dev,
 				    "disabling HT as WMM/QoS is not supported by the AP\n");
@@ -3452,11 +3844,11 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 
 	if (ifmgd->req_smps == IEEE80211_SMPS_AUTOMATIC) {
 		if (ifmgd->powersave)
-			ifmgd->ap_smps = IEEE80211_SMPS_DYNAMIC;
+			sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
 		else
-			ifmgd->ap_smps = IEEE80211_SMPS_OFF;
+			sdata->smps_mode = IEEE80211_SMPS_OFF;
 	} else
-		ifmgd->ap_smps = ifmgd->req_smps;
+		sdata->smps_mode = ifmgd->req_smps;
 
 	assoc_data->capability = req->bss->capability;
 	assoc_data->wmm = bss->wmm_used &&
@@ -3464,12 +3856,14 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	assoc_data->supp_rates = bss->supp_rates;
 	assoc_data->supp_rates_len = bss->supp_rates_len;
 
+	rcu_read_lock();
 	ht_ie = ieee80211_bss_get_ie(req->bss, WLAN_EID_HT_OPERATION);
 	if (ht_ie && ht_ie[1] >= sizeof(struct ieee80211_ht_operation))
 		assoc_data->ap_ht_param =
 			((struct ieee80211_ht_operation *)(ht_ie + 2))->ht_param;
 	else
-		ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
+		ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
+	rcu_read_unlock();
 
 	if (bss->wmm_used && bss->uapsd_supported &&
 	    (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)) {
@@ -3480,9 +3874,6 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 		ifmgd->flags &= ~IEEE80211_STA_UAPSD_ENABLED;
 	}
 
-	memcpy(assoc_data->ssid, ssidie + 2, ssidie[1]);
-	assoc_data->ssid_len = ssidie[1];
-
 	if (req->prev_bssid)
 		memcpy(assoc_data->prev_bssid, req->prev_bssid, ETH_ALEN);
 
@@ -3560,40 +3951,44 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 	bool tx = !req->local_state_change;
+	bool sent_frame = false;
 
 	mutex_lock(&ifmgd->mtx);
 
-	if (ifmgd->auth_data) {
-		ieee80211_destroy_auth_data(sdata, false);
-		mutex_unlock(&ifmgd->mtx);
-		return 0;
-	}
-
 	sdata_info(sdata,
 		   "deauthenticating from %pM by local choice (reason=%d)\n",
 		   req->bssid, req->reason_code);
 
-	if (ifmgd->associated &&
-	    ether_addr_equal(ifmgd->associated->bssid, req->bssid)) {
-		ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
-				       req->reason_code, tx, frame_buf);
-	} else {
+	if (ifmgd->auth_data) {
 		drv_mgd_prepare_tx(sdata->local, sdata);
 		ieee80211_send_deauth_disassoc(sdata, req->bssid,
 					       IEEE80211_STYPE_DEAUTH,
 					       req->reason_code, tx,
 					       frame_buf);
+		ieee80211_destroy_auth_data(sdata, false);
+		mutex_unlock(&ifmgd->mtx);
+
+		sent_frame = tx;
+		goto out;
 	}
 
+	if (ifmgd->associated &&
+	    ether_addr_equal(ifmgd->associated->bssid, req->bssid)) {
+		ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
+				       req->reason_code, tx, frame_buf);
+		sent_frame = tx;
+	}
 	mutex_unlock(&ifmgd->mtx);
 
-	__cfg80211_send_deauth(sdata->dev, frame_buf,
-			       IEEE80211_DEAUTH_FRAME_LEN);
-
+ out:
 	mutex_lock(&sdata->local->mtx);
 	ieee80211_recalc_idle(sdata->local);
 	mutex_unlock(&sdata->local->mtx);
 
+	if (sent_frame)
+		__cfg80211_send_deauth(sdata->dev, frame_buf,
+				       IEEE80211_DEAUTH_FRAME_LEN);
+
 	return 0;
 }
 
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index 2c84185..a5379ae 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -107,6 +107,9 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
 {
 	struct ieee80211_sub_if_data *sdata;
 
+	if (WARN_ON(local->use_chanctx))
+		return;
+
 	/*
 	 * notify the AP about us leaving the channel and stop all
 	 * STA interfaces.
@@ -145,6 +148,9 @@ void ieee80211_offchannel_return(struct ieee80211_local *local,
 {
 	struct ieee80211_sub_if_data *sdata;
 
+	if (WARN_ON(local->use_chanctx))
+		return;
+
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry(sdata, &local->interfaces, list) {
 		if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
@@ -193,13 +199,14 @@ void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc)
 
 	if (roc->mgmt_tx_cookie) {
 		if (!WARN_ON(!roc->frame)) {
-			ieee80211_tx_skb(roc->sdata, roc->frame);
+			ieee80211_tx_skb_tid_band(roc->sdata, roc->frame, 7,
+						  roc->chan->band);
 			roc->frame = NULL;
 		}
 	} else {
-		cfg80211_ready_on_channel(&roc->sdata->wdev, (unsigned long)roc,
-					  roc->chan, roc->chan_type,
-					  roc->req_duration, GFP_KERNEL);
+		cfg80211_ready_on_channel(&roc->sdata->wdev, roc->cookie,
+					  roc->chan, roc->req_duration,
+					  GFP_KERNEL);
 	}
 
 	roc->notified = true;
@@ -276,8 +283,7 @@ void ieee80211_start_next_roc(struct ieee80211_local *local)
 		if (!duration)
 			duration = 10;
 
-		ret = drv_remain_on_channel(local, roc->chan,
-					    roc->chan_type,
+		ret = drv_remain_on_channel(local, roc->sdata, roc->chan,
 					    duration);
 
 		roc->started = true;
@@ -313,8 +319,7 @@ void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc)
 
 	if (!roc->mgmt_tx_cookie)
 		cfg80211_remain_on_channel_expired(&roc->sdata->wdev,
-						   (unsigned long)roc,
-						   roc->chan, roc->chan_type,
+						   roc->cookie, roc->chan,
 						   GFP_KERNEL);
 
 	list_for_each_entry_safe(dep, tmp, &roc->dependents, list)
@@ -353,7 +358,6 @@ void ieee80211_sw_roc_work(struct work_struct *work)
 		ieee80211_recalc_idle(local);
 
 		local->tmp_channel = roc->chan;
-		local->tmp_channel_type = roc->chan_type;
 		ieee80211_hw_config(local, 0);
 
 		/* tell userspace or send frame */
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index 5c572e7..79a48f3 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -33,6 +33,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
+	struct ieee80211_chanctx *ctx;
 
 	if (!local->open_count)
 		goto suspend;
@@ -135,12 +136,55 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 		ieee80211_bss_info_change_notify(sdata,
 			BSS_CHANGED_BEACON_ENABLED);
 
+		if (sdata->vif.type == NL80211_IFTYPE_AP &&
+		    rcu_access_pointer(sdata->u.ap.beacon))
+			drv_stop_ap(local, sdata);
+
+		if (local->use_chanctx) {
+			struct ieee80211_chanctx_conf *conf;
+
+			mutex_lock(&local->chanctx_mtx);
+			conf = rcu_dereference_protected(
+					sdata->vif.chanctx_conf,
+					lockdep_is_held(&local->chanctx_mtx));
+			if (conf) {
+				ctx = container_of(conf,
+						   struct ieee80211_chanctx,
+						   conf);
+				drv_unassign_vif_chanctx(local, sdata, ctx);
+			}
+
+			mutex_unlock(&local->chanctx_mtx);
+		}
 		drv_remove_interface(local, sdata);
 	}
 
 	sdata = rtnl_dereference(local->monitor_sdata);
-	if (sdata)
+	if (sdata) {
+		if (local->use_chanctx) {
+			struct ieee80211_chanctx_conf *conf;
+
+			mutex_lock(&local->chanctx_mtx);
+			conf = rcu_dereference_protected(
+					sdata->vif.chanctx_conf,
+					lockdep_is_held(&local->chanctx_mtx));
+			if (conf) {
+				ctx = container_of(conf,
+						   struct ieee80211_chanctx,
+						   conf);
+				drv_unassign_vif_chanctx(local, sdata, ctx);
+			}
+
+			mutex_unlock(&local->chanctx_mtx);
+		}
+
 		drv_remove_interface(local, sdata);
+	}
+
+	mutex_lock(&local->chanctx_mtx);
+	list_for_each_entry(ctx, &local->chanctx_list, list)
+		drv_remove_chanctx(local, ctx);
+	mutex_unlock(&local->chanctx_mtx);
 
 	/* stop hardware - this must stop RX */
 	if (local->open_count)
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 3313c11..dd88381 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -391,7 +391,7 @@ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
 			return;
 
 		/* if HT BSS, and we handle a data frame, also try HT rates */
-		if (txrc->bss_conf->channel_type == NL80211_CHAN_NO_HT)
+		if (txrc->bss_conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
 			return;
 
 		fc = hdr->frame_control;
@@ -408,8 +408,7 @@ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
 
 		alt_rate.flags |= IEEE80211_TX_RC_MCS;
 
-		if ((txrc->bss_conf->channel_type == NL80211_CHAN_HT40MINUS) ||
-		    (txrc->bss_conf->channel_type == NL80211_CHAN_HT40PLUS))
+		if (txrc->bss_conf->chandef.width == NL80211_CHAN_WIDTH_40)
 			alt_rate.flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
 
 		if (rate_idx_match_mcs_mask(&alt_rate, mcs_mask)) {
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index 10de668..301386d 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -52,11 +52,21 @@ static inline void rate_control_rate_init(struct sta_info *sta)
 	struct ieee80211_sta *ista = &sta->sta;
 	void *priv_sta = sta->rate_ctrl_priv;
 	struct ieee80211_supported_band *sband;
+	struct ieee80211_chanctx_conf *chanctx_conf;
 
 	if (!ref)
 		return;
 
-	sband = local->hw.wiphy->bands[local->oper_channel->band];
+	rcu_read_lock();
+
+	chanctx_conf = rcu_dereference(sta->sdata->vif.chanctx_conf);
+	if (WARN_ON(!chanctx_conf)) {
+		rcu_read_unlock();
+		return;
+	}
+
+	sband = local->hw.wiphy->bands[chanctx_conf->def.chan->band];
+	rcu_read_unlock();
 
 	ref->ops->rate_init(ref->priv, sband, ista, priv_sta);
 	set_sta_flag(sta, WLAN_STA_RATE_CONTROL);
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 79633ae..8c5acdc 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -154,6 +154,7 @@ minstrel_tx_status(void *priv, struct ieee80211_supported_band *sband,
                    struct ieee80211_sta *sta, void *priv_sta,
 		   struct sk_buff *skb)
 {
+	struct minstrel_priv *mp = priv;
 	struct minstrel_sta_info *mi = priv_sta;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_tx_rate *ar = info->status.rates;
@@ -181,6 +182,10 @@ minstrel_tx_status(void *priv, struct ieee80211_supported_band *sband,
 
 	if (mi->sample_deferred > 0)
 		mi->sample_deferred--;
+
+	if (time_after(jiffies, mi->stats_update +
+				(mp->update_interval * HZ) / 1000))
+		minstrel_update_stats(mp, mi);
 }
 
 
@@ -235,10 +240,6 @@ minstrel_get_rate(void *priv, struct ieee80211_sta *sta,
 
 	mrr = mp->has_mrr && !txrc->rts && !txrc->bss_conf->use_cts_prot;
 
-	if (time_after(jiffies, mi->stats_update + (mp->update_interval *
-			HZ) / 1000))
-		minstrel_update_stats(mp, mi);
-
 	ndx = mi->max_tp_rate;
 
 	if (mrr)
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index fb1d4aa..9f9c453 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -389,9 +389,9 @@ minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband,
 	struct ieee80211_tx_rate *ar = info->status.rates;
 	struct minstrel_rate_stats *rate, *rate2;
 	struct minstrel_priv *mp = priv;
-	bool last = false;
+	bool last;
 	int group;
-	int i = 0;
+	int i;
 
 	if (!msp->is_ht)
 		return mac80211_minstrel.tx_status(priv, sband, sta, &msp->legacy, skb);
@@ -419,13 +419,11 @@ minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband,
 	if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)
 		mi->sample_packets += info->status.ampdu_len;
 
+	last = !minstrel_ht_txstat_valid(&ar[0]);
 	for (i = 0; !last; i++) {
 		last = (i == IEEE80211_TX_MAX_RATES - 1) ||
 		       !minstrel_ht_txstat_valid(&ar[i + 1]);
 
-		if (!minstrel_ht_txstat_valid(&ar[i]))
-			break;
-
 		group = minstrel_ht_get_group_idx(&ar[i]);
 		rate = &mi->groups[group].rates[ar[i].idx % 8];
 
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 00ade7f..580704e 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -40,6 +40,8 @@
 static struct sk_buff *remove_monitor_info(struct ieee80211_local *local,
 					   struct sk_buff *skb)
 {
+	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+
 	if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) {
 		if (likely(skb->len > FCS_LEN))
 			__pskb_trim(skb, skb->len - FCS_LEN);
@@ -47,24 +49,29 @@ static struct sk_buff *remove_monitor_info(struct ieee80211_local *local,
 			/* driver bug */
 			WARN_ON(1);
 			dev_kfree_skb(skb);
-			skb = NULL;
+			return NULL;
 		}
 	}
 
+	if (status->vendor_radiotap_len)
+		__pskb_pull(skb, status->vendor_radiotap_len);
+
 	return skb;
 }
 
-static inline int should_drop_frame(struct sk_buff *skb,
-				    int present_fcs_len)
+static inline int should_drop_frame(struct sk_buff *skb, int present_fcs_len)
 {
 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct ieee80211_hdr *hdr;
+
+	hdr = (void *)(skb->data + status->vendor_radiotap_len);
 
 	if (status->flag & (RX_FLAG_FAILED_FCS_CRC |
 			    RX_FLAG_FAILED_PLCP_CRC |
 			    RX_FLAG_AMPDU_IS_ZEROLEN))
 		return 1;
-	if (unlikely(skb->len < 16 + present_fcs_len))
+	if (unlikely(skb->len < 16 + present_fcs_len +
+				status->vendor_radiotap_len))
 		return 1;
 	if (ieee80211_is_ctl(hdr->frame_control) &&
 	    !ieee80211_is_pspoll(hdr->frame_control) &&
@@ -74,32 +81,53 @@ static inline int should_drop_frame(struct sk_buff *skb,
 }
 
 static int
-ieee80211_rx_radiotap_len(struct ieee80211_local *local,
-			  struct ieee80211_rx_status *status)
+ieee80211_rx_radiotap_space(struct ieee80211_local *local,
+			    struct ieee80211_rx_status *status)
 {
 	int len;
 
 	/* always present fields */
 	len = sizeof(struct ieee80211_radiotap_header) + 9;
 
-	if (status->flag & RX_FLAG_MACTIME_MPDU)
+	/* allocate extra bitmap */
+	if (status->vendor_radiotap_len)
+		len += 4;
+
+	if (ieee80211_have_rx_timestamp(status)) {
+		len = ALIGN(len, 8);
 		len += 8;
+	}
 	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
 		len += 1;
 
-	if (len & 1) /* padding for RX_FLAGS if necessary */
-		len++;
+	/* padding for RX_FLAGS if necessary */
+	len = ALIGN(len, 2);
 
 	if (status->flag & RX_FLAG_HT) /* HT info */
 		len += 3;
 
 	if (status->flag & RX_FLAG_AMPDU_DETAILS) {
-		/* padding */
-		while (len & 3)
-			len++;
+		len = ALIGN(len, 4);
 		len += 8;
 	}
 
+	if (status->flag & RX_FLAG_VHT) {
+		len = ALIGN(len, 2);
+		len += 12;
+	}
+
+	if (status->vendor_radiotap_len) {
+		if (WARN_ON_ONCE(status->vendor_radiotap_align == 0))
+			status->vendor_radiotap_align = 1;
+		/* align standard part of vendor namespace */
+		len = ALIGN(len, 2);
+		/* allocate standard part of vendor namespace */
+		len += 6;
+		/* align vendor-defined part */
+		len = ALIGN(len, status->vendor_radiotap_align);
+		/* vendor-defined part is already in skb */
+	}
+
 	return len;
 }
 
@@ -118,6 +146,11 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 	struct ieee80211_radiotap_header *rthdr;
 	unsigned char *pos;
 	u16 rx_flags = 0;
+	int mpdulen;
+
+	mpdulen = skb->len;
+	if (!(has_fcs && (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)))
+		mpdulen += FCS_LEN;
 
 	rthdr = (struct ieee80211_radiotap_header *)skb_push(skb, rtap_len);
 	memset(rthdr, 0, rtap_len);
@@ -128,17 +161,30 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 			    (1 << IEEE80211_RADIOTAP_CHANNEL) |
 			    (1 << IEEE80211_RADIOTAP_ANTENNA) |
 			    (1 << IEEE80211_RADIOTAP_RX_FLAGS));
-	rthdr->it_len = cpu_to_le16(rtap_len);
+	rthdr->it_len = cpu_to_le16(rtap_len + status->vendor_radiotap_len);
 
-	pos = (unsigned char *)(rthdr+1);
+	pos = (unsigned char *)(rthdr + 1);
+
+	if (status->vendor_radiotap_len) {
+		rthdr->it_present |=
+			cpu_to_le32(BIT(IEEE80211_RADIOTAP_VENDOR_NAMESPACE)) |
+			cpu_to_le32(BIT(IEEE80211_RADIOTAP_EXT));
+		put_unaligned_le32(status->vendor_radiotap_bitmap, pos);
+		pos += 4;
+	}
 
 	/* the order of the following fields is important */
 
 	/* IEEE80211_RADIOTAP_TSFT */
-	if (status->flag & RX_FLAG_MACTIME_MPDU) {
-		put_unaligned_le64(status->mactime, pos);
-		rthdr->it_present |=
-			cpu_to_le32(1 << IEEE80211_RADIOTAP_TSFT);
+	if (ieee80211_have_rx_timestamp(status)) {
+		/* padding */
+		while ((pos - (u8 *)rthdr) & 7)
+			*pos++ = 0;
+		put_unaligned_le64(
+			ieee80211_calculate_rx_timestamp(local, status,
+							 mpdulen, 0),
+			pos);
+		rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_TSFT);
 		pos += 8;
 	}
 
@@ -152,7 +198,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 	pos++;
 
 	/* IEEE80211_RADIOTAP_RATE */
-	if (!rate || status->flag & RX_FLAG_HT) {
+	if (!rate || status->flag & (RX_FLAG_HT | RX_FLAG_VHT)) {
 		/*
 		 * Without rate information don't add it. If we have,
 		 * MCS information is a separate field in radiotap,
@@ -172,7 +218,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 	if (status->band == IEEE80211_BAND_5GHZ)
 		put_unaligned_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ,
 				   pos);
-	else if (status->flag & RX_FLAG_HT)
+	else if (status->flag & (RX_FLAG_HT | RX_FLAG_VHT))
 		put_unaligned_le16(IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ,
 				   pos);
 	else if (rate && rate->flags & IEEE80211_RATE_ERP_G)
@@ -205,7 +251,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 	/* IEEE80211_RADIOTAP_RX_FLAGS */
 	/* ensure 2 byte alignment for the 2 byte field as required */
 	if ((pos - (u8 *)rthdr) & 1)
-		pos++;
+		*pos++ = 0;
 	if (status->flag & RX_FLAG_FAILED_PLCP_CRC)
 		rx_flags |= IEEE80211_RADIOTAP_F_RX_BADPLCP;
 	put_unaligned_le16(rx_flags, pos);
@@ -255,6 +301,56 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 			*pos++ = 0;
 		*pos++ = 0;
 	}
+
+	if (status->flag & RX_FLAG_VHT) {
+		u16 known = local->hw.radiotap_vht_details;
+
+		rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_VHT);
+		/* known field - how to handle 80+80? */
+		if (status->flag & RX_FLAG_80P80MHZ)
+			known &= ~IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH;
+		put_unaligned_le16(known, pos);
+		pos += 2;
+		/* flags */
+		if (status->flag & RX_FLAG_SHORT_GI)
+			*pos |= IEEE80211_RADIOTAP_VHT_FLAG_SGI;
+		pos++;
+		/* bandwidth */
+		if (status->flag & RX_FLAG_80MHZ)
+			*pos++ = 4;
+		else if (status->flag & RX_FLAG_80P80MHZ)
+			*pos++ = 0; /* marked not known above */
+		else if (status->flag & RX_FLAG_160MHZ)
+			*pos++ = 11;
+		else if (status->flag & RX_FLAG_40MHZ)
+			*pos++ = 1;
+		else /* 20 MHz */
+			*pos++ = 0;
+		/* MCS/NSS */
+		*pos = (status->rate_idx << 4) | status->vht_nss;
+		pos += 4;
+		/* coding field */
+		pos++;
+		/* group ID */
+		pos++;
+		/* partial_aid */
+		pos += 2;
+	}
+
+	if (status->vendor_radiotap_len) {
+		/* ensure 2 byte alignment for the vendor field as required */
+		if ((pos - (u8 *)rthdr) & 1)
+			*pos++ = 0;
+		*pos++ = status->vendor_radiotap_oui[0];
+		*pos++ = status->vendor_radiotap_oui[1];
+		*pos++ = status->vendor_radiotap_oui[2];
+		*pos++ = status->vendor_radiotap_subns;
+		put_unaligned_le16(status->vendor_radiotap_len, pos);
+		pos += 2;
+		/* align the actual payload as requested */
+		while ((pos - (u8 *)rthdr) & (status->vendor_radiotap_align - 1))
+			*pos++ = 0;
+	}
 }
 
 /*
@@ -282,14 +378,11 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 	 * the SKB because it has a bad FCS/PLCP checksum.
 	 */
 
-	/* room for the radiotap header based on driver features */
-	needed_headroom = ieee80211_rx_radiotap_len(local, status);
-
 	if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
 		present_fcs_len = FCS_LEN;
 
-	/* make sure hdr->frame_control is on the linear part */
-	if (!pskb_may_pull(origskb, 2)) {
+	/* ensure hdr->frame_control and vendor radiotap data are in skb head */
+	if (!pskb_may_pull(origskb, 2 + status->vendor_radiotap_len)) {
 		dev_kfree_skb(origskb);
 		return NULL;
 	}
@@ -303,6 +396,9 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 		return remove_monitor_info(local, origskb);
 	}
 
+	/* room for the radiotap header based on driver features */
+	needed_headroom = ieee80211_rx_radiotap_space(local, status);
+
 	if (should_drop_frame(origskb, present_fcs_len)) {
 		/* only need to expand headroom if necessary */
 		skb = origskb;
@@ -374,7 +470,6 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 	return origskb;
 }
 
-
 static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
@@ -403,10 +498,10 @@ static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
 		 *
 		 * We also use that counter for non-QoS STAs.
 		 */
-		seqno_idx = NUM_RX_DATA_QUEUES;
+		seqno_idx = IEEE80211_NUM_TIDS;
 		security_idx = 0;
 		if (ieee80211_is_mgmt(hdr->frame_control))
-			security_idx = NUM_RX_DATA_QUEUES;
+			security_idx = IEEE80211_NUM_TIDS;
 		tid = 0;
 	}
 
@@ -481,8 +576,7 @@ static int ieee80211_get_mmie_keyidx(struct sk_buff *skb)
 	struct ieee80211_mgmt *hdr = (struct ieee80211_mgmt *) skb->data;
 	struct ieee80211_mmie *mmie;
 
-	if (skb->len < 24 + sizeof(*mmie) ||
-	    !is_multicast_ether_addr(hdr->da))
+	if (skb->len < 24 + sizeof(*mmie) || !is_multicast_ether_addr(hdr->da))
 		return -1;
 
 	if (!ieee80211_is_robust_mgmt_frame((struct ieee80211_hdr *) hdr))
@@ -497,9 +591,7 @@ static int ieee80211_get_mmie_keyidx(struct sk_buff *skb)
 	return le16_to_cpu(mmie->key_id);
 }
 
-
-static ieee80211_rx_result
-ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
+static ieee80211_rx_result ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
 	char *dev_addr = rx->sdata->vif.addr;
@@ -507,7 +599,7 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
 	if (ieee80211_is_data(hdr->frame_control)) {
 		if (is_multicast_ether_addr(hdr->addr1)) {
 			if (ieee80211_has_tods(hdr->frame_control) ||
-				!ieee80211_has_fromds(hdr->frame_control))
+			    !ieee80211_has_fromds(hdr->frame_control))
 				return RX_DROP_MONITOR;
 			if (ether_addr_equal(hdr->addr3, dev_addr))
 				return RX_DROP_MONITOR;
@@ -539,7 +631,7 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
 			mgmt = (struct ieee80211_mgmt *)hdr;
 			category = mgmt->u.action.category;
 			if (category != WLAN_CATEGORY_MESH_ACTION &&
-				category != WLAN_CATEGORY_SELF_PROTECTED)
+			    category != WLAN_CATEGORY_SELF_PROTECTED)
 				return RX_DROP_MONITOR;
 			return RX_CONTINUE;
 		}
@@ -551,7 +643,6 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
 			return RX_CONTINUE;
 
 		return RX_DROP_MONITOR;
-
 	}
 
 	return RX_CONTINUE;
@@ -575,7 +666,6 @@ static inline u16 seq_sub(u16 sq1, u16 sq2)
 	return (sq1 - sq2) & SEQ_MASK;
 }
 
-
 static void ieee80211_release_reorder_frame(struct ieee80211_sub_if_data *sdata,
 					    struct tid_ampdu_rx *tid_agg_rx,
 					    int index)
@@ -1148,12 +1238,19 @@ ieee80211_rx_h_check_more_data(struct ieee80211_rx_data *rx)
 	return RX_CONTINUE;
 }
 
-static void ap_sta_ps_start(struct sta_info *sta)
+static void sta_ps_start(struct sta_info *sta)
 {
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
 	struct ieee80211_local *local = sdata->local;
+	struct ps_data *ps;
+
+	if (sta->sdata->vif.type == NL80211_IFTYPE_AP ||
+	    sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+		ps = &sdata->bss->ps;
+	else
+		return;
 
-	atomic_inc(&sdata->bss->num_sta_ps);
+	atomic_inc(&ps->num_sta_ps);
 	set_sta_flag(sta, WLAN_STA_PS_STA);
 	if (!(local->hw.flags & IEEE80211_HW_AP_LINK_PS))
 		drv_sta_notify(local, sdata, STA_NOTIFY_SLEEP, &sta->sta);
@@ -1161,7 +1258,7 @@ static void ap_sta_ps_start(struct sta_info *sta)
 	       sta->sta.addr, sta->sta.aid);
 }
 
-static void ap_sta_ps_end(struct sta_info *sta)
+static void sta_ps_end(struct sta_info *sta)
 {
 	ps_dbg(sta->sdata, "STA %pM aid %d exits power save mode\n",
 	       sta->sta.addr, sta->sta.aid);
@@ -1188,9 +1285,9 @@ int ieee80211_sta_ps_transition(struct ieee80211_sta *sta, bool start)
 		return -EINVAL;
 
 	if (start)
-		ap_sta_ps_start(sta_inf);
+		sta_ps_start(sta_inf);
 	else
-		ap_sta_ps_end(sta_inf);
+		sta_ps_end(sta_inf);
 
 	return 0;
 }
@@ -1284,17 +1381,22 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 
 	/*
 	 * Update last_rx only for IBSS packets which are for the current
-	 * BSSID to avoid keeping the current IBSS network alive in cases
-	 * where other STAs start using different BSSID.
+	 * BSSID and for station already AUTHORIZED to avoid keeping the
+	 * current IBSS network alive in cases where other STAs start
+	 * using different BSSID. This will also give the station another
+	 * chance to restart the authentication/authorization in case
+	 * something went wrong the first time.
 	 */
 	if (rx->sdata->vif.type == NL80211_IFTYPE_ADHOC) {
 		u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len,
 						NL80211_IFTYPE_ADHOC);
-		if (ether_addr_equal(bssid, rx->sdata->u.ibss.bssid)) {
+		if (ether_addr_equal(bssid, rx->sdata->u.ibss.bssid) &&
+		    test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
 			sta->last_rx = jiffies;
 			if (ieee80211_is_data(hdr->frame_control)) {
 				sta->last_rx_rate_idx = status->rate_idx;
 				sta->last_rx_rate_flag = status->flag;
+				sta->last_rx_rate_vht_nss = status->vht_nss;
 			}
 		}
 	} else if (!is_multicast_ether_addr(hdr->addr1)) {
@@ -1306,6 +1408,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 		if (ieee80211_is_data(hdr->frame_control)) {
 			sta->last_rx_rate_idx = status->rate_idx;
 			sta->last_rx_rate_flag = status->flag;
+			sta->last_rx_rate_vht_nss = status->vht_nss;
 		}
 	}
 
@@ -1342,10 +1445,10 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 			 */
 			if (ieee80211_is_data(hdr->frame_control) &&
 			    !ieee80211_has_pm(hdr->frame_control))
-				ap_sta_ps_end(sta);
+				sta_ps_end(sta);
 		} else {
 			if (ieee80211_has_pm(hdr->frame_control))
-				ap_sta_ps_start(sta);
+				sta_ps_start(sta);
 		}
 	}
 
@@ -1391,9 +1494,7 @@ ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata,
 			 struct sk_buff **skb)
 {
 	struct ieee80211_fragment_entry *entry;
-	int idx;
 
-	idx = sdata->fragment_next;
 	entry = &sdata->fragments[sdata->fragment_next++];
 	if (sdata->fragment_next >= IEEE80211_FRAGMENT_MAX)
 		sdata->fragment_next = 0;
@@ -1580,18 +1681,15 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
 	return RX_CONTINUE;
 }
 
-static int
-ieee80211_802_1x_port_control(struct ieee80211_rx_data *rx)
+static int ieee80211_802_1x_port_control(struct ieee80211_rx_data *rx)
 {
-	if (unlikely(!rx->sta ||
-	    !test_sta_flag(rx->sta, WLAN_STA_AUTHORIZED)))
+	if (unlikely(!rx->sta || !test_sta_flag(rx->sta, WLAN_STA_AUTHORIZED)))
 		return -EACCES;
 
 	return 0;
 }
 
-static int
-ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc)
+static int ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc)
 {
 	struct sk_buff *skb = rx->skb;
 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
@@ -1613,8 +1711,7 @@ ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc)
 	return 0;
 }
 
-static int
-ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx)
+static int ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
@@ -1998,7 +2095,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	} else {
 		/* unable to resolve next hop */
 		mesh_path_error_tx(ifmsh->mshcfg.element_ttl, fwd_hdr->addr3,
-				    0, reason, fwd_hdr->addr2, sdata);
+				   0, reason, fwd_hdr->addr2, sdata);
 		IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_no_route);
 		kfree_skb(fwd_skb);
 		return RX_DROP_MONITOR;
@@ -2207,7 +2304,7 @@ ieee80211_rx_h_mgmt_check(struct ieee80211_rx_data *rx)
 
 		cfg80211_report_obss_beacon(rx->local->hw.wiphy,
 					    rx->skb->data, rx->skb->len,
-					    status->freq, sig, GFP_ATOMIC);
+					    status->freq, sig);
 		rx->flags |= IEEE80211_RX_BEACON_REPORTED;
 	}
 
@@ -2236,7 +2333,8 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 	if (len < IEEE80211_MIN_ACTION_SIZE)
 		return RX_DROP_UNUSABLE;
 
-	if (!rx->sta && mgmt->u.action.category != WLAN_CATEGORY_PUBLIC)
+	if (!rx->sta && mgmt->u.action.category != WLAN_CATEGORY_PUBLIC &&
+	    mgmt->u.action.category != WLAN_CATEGORY_SELF_PROTECTED)
 		return RX_DROP_UNUSABLE;
 
 	if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
@@ -2407,7 +2505,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 		if (!ieee80211_vif_is_mesh(&sdata->vif))
 			break;
 		if (mesh_action_is_path_sel(mgmt) &&
-		  (!mesh_path_sel_is_hwmp(sdata)))
+		    !mesh_path_sel_is_hwmp(sdata))
 			break;
 		goto queue;
 	}
@@ -2463,7 +2561,6 @@ ieee80211_rx_h_userspace_mgmt(struct ieee80211_rx_data *rx)
 		return RX_QUEUED;
 	}
 
-
 	return RX_CONTINUE;
 }
 
@@ -2593,7 +2690,7 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx,
 		goto out_free_skb;
 
 	/* room for the radiotap header based on driver features */
-	needed_headroom = ieee80211_rx_radiotap_len(local, status);
+	needed_headroom = ieee80211_rx_radiotap_space(local, status);
 
 	if (skb_headroom(skb) < needed_headroom &&
 	    pskb_expand_head(skb, needed_headroom, 0, GFP_ATOMIC))
@@ -2656,7 +2753,8 @@ static void ieee80211_rx_handlers_result(struct ieee80211_rx_data *rx,
 		status = IEEE80211_SKB_RXCB((rx->skb));
 
 		sband = rx->local->hw.wiphy->bands[status->band];
-		if (!(status->flag & RX_FLAG_HT))
+		if (!(status->flag & RX_FLAG_HT) &&
+		    !(status->flag & RX_FLAG_VHT))
 			rate = &sband->bitrates[status->rate_idx];
 
 		ieee80211_rx_cooked_monitor(rx, rate);
@@ -2823,8 +2921,8 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
 			status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
 		} else if (!rx->sta) {
 			int rate_idx;
-			if (status->flag & RX_FLAG_HT)
-				rate_idx = 0; /* TODO: HT rates */
+			if (status->flag & (RX_FLAG_HT | RX_FLAG_VHT))
+				rate_idx = 0; /* TODO: HT/VHT rates */
 			else
 				rate_idx = status->rate_idx;
 			ieee80211_ibss_rx_no_sta(sdata, bssid, hdr->addr2,
@@ -3048,8 +3146,7 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
 
 	WARN_ON_ONCE(softirq_count() == 0);
 
-	if (WARN_ON(status->band < 0 ||
-		    status->band >= IEEE80211_NUM_BANDS))
+	if (WARN_ON(status->band >= IEEE80211_NUM_BANDS))
 		goto drop;
 
 	sband = local->hw.wiphy->bands[status->band];
@@ -3094,17 +3191,22 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
 			 * hardware error. The driver should catch hardware
 			 * errors.
 			 */
-			if (WARN((status->rate_idx < 0 ||
-				 status->rate_idx > 76),
+			if (WARN(status->rate_idx > 76,
 				 "Rate marked as an HT rate but passed "
 				 "status->rate_idx is not "
 				 "an MCS index [0-76]: %d (0x%02x)\n",
 				 status->rate_idx,
 				 status->rate_idx))
 				goto drop;
+		} else if (status->flag & RX_FLAG_VHT) {
+			if (WARN_ONCE(status->rate_idx > 9 ||
+				      !status->vht_nss ||
+				      status->vht_nss > 8,
+				      "Rate marked as a VHT rate but data is invalid: MCS: %d, NSS: %d\n",
+				      status->rate_idx, status->vht_nss))
+				goto drop;
 		} else {
-			if (WARN_ON(status->rate_idx < 0 ||
-				    status->rate_idx >= sband->n_bitrates))
+			if (WARN_ON(status->rate_idx >= sband->n_bitrates))
 				goto drop;
 			rate = &sband->bitrates[status->rate_idx];
 		}
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 43e60b5..8ed83dc 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -118,7 +118,7 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
 		struct ieee80211_tim_ie *tim_ie = elems->tim;
 		bss->dtim_period = tim_ie->dtim_period;
 		if (!elems->parse_error)
-				bss->valid_data |= IEEE80211_BSS_VALID_DTIM;
+			bss->valid_data |= IEEE80211_BSS_VALID_DTIM;
 	}
 
 	/* If the beacon had no TIM IE, or it was invalid, use 1 */
@@ -174,7 +174,6 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb)
 	u8 *elements;
 	struct ieee80211_channel *channel;
 	size_t baselen;
-	int freq;
 	bool beacon;
 	struct ieee802_11_elems elems;
 
@@ -209,13 +208,7 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb)
 
 	ieee802_11_parse_elems(elements, skb->len - baselen, &elems);
 
-	if (elems.ds_params && elems.ds_params_len == 1)
-		freq = ieee80211_channel_to_frequency(elems.ds_params[0],
-						      rx_status->band);
-	else
-		freq = rx_status->freq;
-
-	channel = ieee80211_get_channel(local->hw.wiphy, freq);
+	channel = ieee80211_get_channel(local->hw.wiphy, rx_status->freq);
 
 	if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
 		return;
@@ -254,6 +247,7 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local)
 	local->hw_scan_req->n_channels = n_chans;
 
 	ielen = ieee80211_build_preq_ies(local, (u8 *)local->hw_scan_req->ie,
+					 local->hw_scan_ies_bufsize,
 					 req->ie, req->ie_len, band,
 					 req->rates[band], 0);
 	local->hw_scan_req->ie_len = ielen;
@@ -336,6 +330,10 @@ EXPORT_SYMBOL(ieee80211_scan_completed);
 
 static int ieee80211_start_sw_scan(struct ieee80211_local *local)
 {
+	/* Software scan is not supported in multi-channel cases */
+	if (local->use_chanctx)
+		return -EOPNOTSUPP;
+
 	/*
 	 * Hardware/driver doesn't support hw_scan, so use software
 	 * scanning instead. First send a nullfunc frame with power save
@@ -417,7 +415,7 @@ static void ieee80211_scan_state_send_probe(struct ieee80211_local *local,
 			local->scan_req->ie, local->scan_req->ie_len,
 			local->scan_req->rates[band], false,
 			local->scan_req->no_cck,
-			local->hw.conf.channel);
+			local->hw.conf.channel, true);
 
 	/*
 	 * After sending probe requests, wait for probe responses
@@ -448,11 +446,13 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
 	if (local->ops->hw_scan) {
 		u8 *ies;
 
+		local->hw_scan_ies_bufsize = 2 + IEEE80211_MAX_SSID_LEN +
+					     local->scan_ies_len +
+					     req->ie_len;
 		local->hw_scan_req = kmalloc(
 				sizeof(*local->hw_scan_req) +
 				req->n_channels * sizeof(req->channels[0]) +
-				2 + IEEE80211_MAX_SSID_LEN + local->scan_ies_len +
-				req->ie_len, GFP_KERNEL);
+				local->hw_scan_ies_bufsize, GFP_KERNEL);
 		if (!local->hw_scan_req)
 			return -ENOMEM;
 
@@ -462,6 +462,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
 			sizeof(*local->hw_scan_req) +
 			req->n_channels * sizeof(req->channels[0]);
 		local->hw_scan_req->ie = ies;
+		local->hw_scan_req->flags = req->flags;
 
 		local->hw_scan_band = 0;
 
@@ -480,7 +481,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
 	if (local->ops->hw_scan) {
 		__set_bit(SCAN_HW_SCANNING, &local->scanning);
 	} else if ((req->n_channels == 1) &&
-		   (req->channels[0] == local->oper_channel)) {
+		   (req->channels[0] == local->_oper_channel)) {
 		/*
 		 * If we are scanning only on the operating channel
 		 * then we do not need to stop normal activities
@@ -562,6 +563,7 @@ static void ieee80211_scan_state_decision(struct ieee80211_local *local,
 	unsigned long min_beacon_int = 0;
 	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_channel *next_chan;
+	enum mac80211_scan_state next_scan_state;
 
 	/*
 	 * check if at least one STA interface is associated,
@@ -620,10 +622,18 @@ static void ieee80211_scan_state_decision(struct ieee80211_local *local,
 			usecs_to_jiffies(min_beacon_int * 1024) *
 			local->hw.conf.listen_interval);
 
-	if (associated && (!tx_empty || bad_latency || listen_int_exceeded))
-		local->next_scan_state = SCAN_SUSPEND;
-	else
-		local->next_scan_state = SCAN_SET_CHANNEL;
+	if (associated && !tx_empty) {
+		if (local->scan_req->flags & NL80211_SCAN_FLAG_LOW_PRIORITY)
+			next_scan_state = SCAN_ABORT;
+		else
+			next_scan_state = SCAN_SUSPEND;
+	} else if (associated && (bad_latency || listen_int_exceeded)) {
+		next_scan_state = SCAN_SUSPEND;
+	} else {
+		next_scan_state = SCAN_SET_CHANNEL;
+	}
+
+	local->next_scan_state = next_scan_state;
 
 	*next_delay = 0;
 }
@@ -794,6 +804,9 @@ void ieee80211_scan_work(struct work_struct *work)
 		case SCAN_RESUME:
 			ieee80211_scan_state_resume(local, &next_delay);
 			break;
+		case SCAN_ABORT:
+			aborted = true;
+			goto out_complete;
 		}
 	} while (next_delay == 0);
 
@@ -918,7 +931,10 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_sched_scan_ies sched_scan_ies = {};
-	int ret, i;
+	int ret, i, iebufsz;
+
+	iebufsz = 2 + IEEE80211_MAX_SSID_LEN +
+		  local->scan_ies_len + req->ie_len;
 
 	mutex_lock(&local->mtx);
 
@@ -936,10 +952,7 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
 		if (!local->hw.wiphy->bands[i])
 			continue;
 
-		sched_scan_ies.ie[i] = kzalloc(2 + IEEE80211_MAX_SSID_LEN +
-					       local->scan_ies_len +
-					       req->ie_len,
-					       GFP_KERNEL);
+		sched_scan_ies.ie[i] = kzalloc(iebufsz, GFP_KERNEL);
 		if (!sched_scan_ies.ie[i]) {
 			ret = -ENOMEM;
 			goto out_free;
@@ -947,8 +960,8 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
 
 		sched_scan_ies.len[i] =
 			ieee80211_build_preq_ies(local, sched_scan_ies.ie[i],
-						 req->ie, req->ie_len, i,
-						 (u32) -1, 0);
+						 iebufsz, req->ie, req->ie_len,
+						 i, (u32) -1, 0);
 	}
 
 	ret = drv_sched_scan_start(local, sdata, req, &sched_scan_ies);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index d2eb64e..f3e5025 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -98,6 +98,7 @@ static void free_sta_work(struct work_struct *wk)
 	struct tid_ampdu_tx *tid_tx;
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
 	struct ieee80211_local *local = sdata->local;
+	struct ps_data *ps;
 
 	/*
 	 * At this point, when being called as call_rcu callback,
@@ -107,11 +108,15 @@ static void free_sta_work(struct work_struct *wk)
 	 */
 
 	if (test_sta_flag(sta, WLAN_STA_PS_STA)) {
-		BUG_ON(!sdata->bss);
+		if (sta->sdata->vif.type == NL80211_IFTYPE_AP ||
+		    sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+			ps = &sdata->bss->ps;
+		else
+			return;
 
 		clear_sta_flag(sta, WLAN_STA_PS_STA);
 
-		atomic_dec(&sdata->bss->num_sta_ps);
+		atomic_dec(&ps->num_sta_ps);
 		sta_info_recalc_tim(sta);
 	}
 
@@ -137,7 +142,7 @@ static void free_sta_work(struct work_struct *wk)
 	 * drivers have to handle aggregation stop being requested, followed
 	 * directly by station destruction.
 	 */
-	for (i = 0; i < STA_TID_NUM; i++) {
+	for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 		tid_tx = rcu_dereference_raw(sta->ampdu_mlme.tid_tx[i]);
 		if (!tid_tx)
 			continue;
@@ -325,7 +330,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 		return NULL;
 	}
 
-	for (i = 0; i < STA_TID_NUM; i++) {
+	for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 		/*
 		 * timer_to_tid must be initialized with identity mapping
 		 * to enable session_timer's data differentiation. See
@@ -338,7 +343,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 		skb_queue_head_init(&sta->tx_filtered[i]);
 	}
 
-	for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+	for (i = 0; i < IEEE80211_NUM_TIDS; i++)
 		sta->last_seq_ctrl[i] = cpu_to_le16(USHRT_MAX);
 
 	sta_dbg(sdata, "Allocated STA %pM\n", sta->sta.addr);
@@ -502,22 +507,22 @@ int sta_info_insert(struct sta_info *sta)
 	return err;
 }
 
-static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
+static inline void __bss_tim_set(u8 *tim, u16 id)
 {
 	/*
 	 * This format has been mandated by the IEEE specifications,
 	 * so this line may not be changed to use the __set_bit() format.
 	 */
-	bss->tim[aid / 8] |= (1 << (aid % 8));
+	tim[id / 8] |= (1 << (id % 8));
 }
 
-static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
+static inline void __bss_tim_clear(u8 *tim, u16 id)
 {
 	/*
 	 * This format has been mandated by the IEEE specifications,
 	 * so this line may not be changed to use the __clear_bit() format.
 	 */
-	bss->tim[aid / 8] &= ~(1 << (aid % 8));
+	tim[id / 8] &= ~(1 << (id % 8));
 }
 
 static unsigned long ieee80211_tids_for_ac(int ac)
@@ -541,14 +546,23 @@ static unsigned long ieee80211_tids_for_ac(int ac)
 void sta_info_recalc_tim(struct sta_info *sta)
 {
 	struct ieee80211_local *local = sta->local;
-	struct ieee80211_if_ap *bss = sta->sdata->bss;
+	struct ps_data *ps;
 	unsigned long flags;
 	bool indicate_tim = false;
 	u8 ignore_for_tim = sta->sta.uapsd_queues;
 	int ac;
+	u16 id;
+
+	if (sta->sdata->vif.type == NL80211_IFTYPE_AP ||
+	    sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+		if (WARN_ON_ONCE(!sta->sdata->bss))
+			return;
 
-	if (WARN_ON_ONCE(!sta->sdata->bss))
+		ps = &sta->sdata->bss->ps;
+		id = sta->sta.aid;
+	} else {
 		return;
+	}
 
 	/* No need to do anything if the driver does all */
 	if (local->hw.flags & IEEE80211_HW_AP_LINK_PS)
@@ -587,9 +601,9 @@ void sta_info_recalc_tim(struct sta_info *sta)
 	spin_lock_irqsave(&local->tim_lock, flags);
 
 	if (indicate_tim)
-		__bss_tim_set(bss, sta->sta.aid);
+		__bss_tim_set(ps->tim, id);
 	else
-		__bss_tim_clear(bss, sta->sta.aid);
+		__bss_tim_clear(ps->tim, id);
 
 	if (local->ops->set_tim) {
 		local->tim_in_locked_section = true;
@@ -893,8 +907,8 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
 			continue;
 
 		if (time_after(jiffies, sta->last_rx + exp_time)) {
-			ibss_dbg(sdata, "expiring inactive STA %pM\n",
-				 sta->sta.addr);
+			sta_dbg(sta->sdata, "expiring inactive STA %pM\n",
+				sta->sta.addr);
 			WARN_ON(__sta_info_destroy(sta));
 		}
 	}
@@ -948,10 +962,17 @@ static void clear_sta_ps_flags(void *_sta)
 {
 	struct sta_info *sta = _sta;
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	struct ps_data *ps;
+
+	if (sdata->vif.type == NL80211_IFTYPE_AP ||
+	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+		ps = &sdata->bss->ps;
+	else
+		return;
 
 	clear_sta_flag(sta, WLAN_STA_PS_DRIVER);
 	if (test_and_clear_sta_flag(sta, WLAN_STA_PS_STA))
-		atomic_dec(&sdata->bss->num_sta_ps);
+		atomic_dec(&ps->num_sta_ps);
 }
 
 /* powersave support code */
@@ -965,7 +986,7 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
 
 	clear_sta_flag(sta, WLAN_STA_SP);
 
-	BUILD_BUG_ON(BITS_TO_LONGS(STA_TID_NUM) > 1);
+	BUILD_BUG_ON(BITS_TO_LONGS(IEEE80211_NUM_TIDS) > 1);
 	sta->driver_buffered_tids = 0;
 
 	if (!(local->hw.flags & IEEE80211_HW_AP_LINK_PS))
@@ -1013,6 +1034,7 @@ static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata,
 	__le16 fc;
 	bool qos = test_sta_flag(sta, WLAN_STA_WME);
 	struct ieee80211_tx_info *info;
+	struct ieee80211_chanctx_conf *chanctx_conf;
 
 	if (qos) {
 		fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
@@ -1062,7 +1084,16 @@ static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata,
 
 	drv_allow_buffered_frames(local, sta, BIT(tid), 1, reason, false);
 
-	ieee80211_xmit(sdata, skb);
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (WARN_ON(!chanctx_conf)) {
+		rcu_read_unlock();
+		kfree_skb(skb);
+		return;
+	}
+
+	ieee80211_xmit(sdata, skb, chanctx_conf->def.chan->band);
+	rcu_read_unlock();
 }
 
 static void
@@ -1343,7 +1374,7 @@ void ieee80211_sta_set_buffered(struct ieee80211_sta *pubsta,
 {
 	struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
 
-	if (WARN_ON(tid >= STA_TID_NUM))
+	if (WARN_ON(tid >= IEEE80211_NUM_TIDS))
 		return;
 
 	if (buffered)
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index c88f161f..1489bca 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -80,7 +80,6 @@ enum ieee80211_sta_info_flags {
 	WLAN_STA_TOFFSET_KNOWN,
 };
 
-#define STA_TID_NUM 16
 #define ADDBA_RESP_INTERVAL HZ
 #define HT_AGG_MAX_RETRIES		15
 #define HT_AGG_BURST_RETRIES		3
@@ -197,15 +196,15 @@ struct tid_ampdu_rx {
 struct sta_ampdu_mlme {
 	struct mutex mtx;
 	/* rx */
-	struct tid_ampdu_rx __rcu *tid_rx[STA_TID_NUM];
-	unsigned long tid_rx_timer_expired[BITS_TO_LONGS(STA_TID_NUM)];
-	unsigned long tid_rx_stop_requested[BITS_TO_LONGS(STA_TID_NUM)];
+	struct tid_ampdu_rx __rcu *tid_rx[IEEE80211_NUM_TIDS];
+	unsigned long tid_rx_timer_expired[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
+	unsigned long tid_rx_stop_requested[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
 	/* tx */
 	struct work_struct work;
-	struct tid_ampdu_tx __rcu *tid_tx[STA_TID_NUM];
-	struct tid_ampdu_tx *tid_start_tx[STA_TID_NUM];
-	unsigned long last_addba_req_time[STA_TID_NUM];
-	u8 addba_req_num[STA_TID_NUM];
+	struct tid_ampdu_tx __rcu *tid_tx[IEEE80211_NUM_TIDS];
+	struct tid_ampdu_tx *tid_start_tx[IEEE80211_NUM_TIDS];
+	unsigned long last_addba_req_time[IEEE80211_NUM_TIDS];
+	u8 addba_req_num[IEEE80211_NUM_TIDS];
 	u8 dialog_token_allocator;
 };
 
@@ -228,6 +227,7 @@ struct sta_ampdu_mlme {
  *	"the" transmit rate
  * @last_rx_rate_idx: rx status rate index of the last data packet
  * @last_rx_rate_flag: rx status flag of the last data packet
+ * @last_rx_rate_vht_nss: rx status nss of last data packet
  * @lock: used for locking all fields that require locking, see comments
  *	in the header file.
  * @drv_unblock_wk: used for driver PS unblocking
@@ -250,6 +250,7 @@ struct sta_ampdu_mlme {
  * @rx_dropped: number of dropped MPDUs from this STA
  * @last_signal: signal of last received frame from this STA
  * @avg_signal: moving average of signal of received frames from this STA
+ * @last_ack_signal: signal of last received Ack frame from this STA
  * @last_seq_ctrl: last received seq/frag number from this STA (per RX queue)
  * @tx_filtered_count: number of frames the hardware filtered for this STA
  * @tx_retry_failed: number of frames that failed retry
@@ -273,7 +274,7 @@ struct sta_ampdu_mlme {
  * @t_offset: timing offset relative to this host
  * @t_offset_setpoint: reference timing offset of this sta to be used when
  * 	calculating clockdrift
- * @ch_type: peer's channel type
+ * @ch_width: peer's channel width
  * @debugfs: debug filesystem info
  * @dead: set to true when sta is unlinked
  * @uploaded: set to true when sta is uploaded to the driver
@@ -329,8 +330,9 @@ struct sta_info {
 	unsigned long rx_dropped;
 	int last_signal;
 	struct ewma avg_signal;
+	int last_ack_signal;
 	/* Plus 1 for non-QoS frames */
-	__le16 last_seq_ctrl[NUM_RX_DATA_QUEUES + 1];
+	__le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1];
 
 	/* Updated from TX status path only, no locking requirements */
 	unsigned long tx_filtered_count;
@@ -344,14 +346,15 @@ struct sta_info {
 	unsigned long tx_fragments;
 	struct ieee80211_tx_rate last_tx_rate;
 	int last_rx_rate_idx;
-	int last_rx_rate_flag;
+	u32 last_rx_rate_flag;
+	u8 last_rx_rate_vht_nss;
 	u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1];
 
 	/*
 	 * Aggregation information, locked with lock.
 	 */
 	struct sta_ampdu_mlme ampdu_mlme;
-	u8 timer_to_tid[STA_TID_NUM];
+	u8 timer_to_tid[IEEE80211_NUM_TIDS];
 
 #ifdef CONFIG_MAC80211_MESH
 	/*
@@ -369,7 +372,7 @@ struct sta_info {
 	struct timer_list plink_timer;
 	s64 t_offset;
 	s64 t_offset_setpoint;
-	enum nl80211_channel_type ch_type;
+	enum nl80211_chan_width ch_width;
 #endif
 
 #ifdef CONFIG_MAC80211_DEBUGFS
@@ -551,6 +554,8 @@ int sta_info_flush(struct ieee80211_local *local,
 void sta_set_rate_info_tx(struct sta_info *sta,
 			  const struct ieee80211_tx_rate *rate,
 			  struct rate_info *rinfo);
+void sta_set_rate_info_rx(struct sta_info *sta,
+			  struct rate_info *rinfo);
 void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
 			  unsigned long exp_time);
 
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 101eb88..07d9957 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -189,30 +189,31 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb)
 	}
 
 	if (ieee80211_is_action(mgmt->frame_control) &&
-	    sdata->vif.type == NL80211_IFTYPE_STATION &&
 	    mgmt->u.action.category == WLAN_CATEGORY_HT &&
-	    mgmt->u.action.u.ht_smps.action == WLAN_HT_ACTION_SMPS) {
+	    mgmt->u.action.u.ht_smps.action == WLAN_HT_ACTION_SMPS &&
+	    sdata->vif.type == NL80211_IFTYPE_STATION &&
+	    ieee80211_sdata_running(sdata)) {
 		/*
 		 * This update looks racy, but isn't -- if we come
 		 * here we've definitely got a station that we're
 		 * talking to, and on a managed interface that can
 		 * only be the AP. And the only other place updating
-		 * this variable is before we're associated.
+		 * this variable in managed mode is before association.
 		 */
 		switch (mgmt->u.action.u.ht_smps.smps_control) {
 		case WLAN_HT_SMPS_CONTROL_DYNAMIC:
-			sta->sdata->u.mgd.ap_smps = IEEE80211_SMPS_DYNAMIC;
+			sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
 			break;
 		case WLAN_HT_SMPS_CONTROL_STATIC:
-			sta->sdata->u.mgd.ap_smps = IEEE80211_SMPS_STATIC;
+			sdata->smps_mode = IEEE80211_SMPS_STATIC;
 			break;
 		case WLAN_HT_SMPS_CONTROL_DISABLED:
 		default: /* shouldn't happen since we don't send that */
-			sta->sdata->u.mgd.ap_smps = IEEE80211_SMPS_OFF;
+			sdata->smps_mode = IEEE80211_SMPS_OFF;
 			break;
 		}
 
-		ieee80211_queue_work(&local->hw, &local->recalc_smps);
+		ieee80211_queue_work(&local->hw, &sdata->recalc_smps);
 	}
 }
 
@@ -324,6 +325,75 @@ static void ieee80211_add_tx_radiotap_header(struct ieee80211_supported_band
 
 }
 
+static void ieee80211_report_used_skb(struct ieee80211_local *local,
+				      struct sk_buff *skb, bool dropped)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_hdr *hdr = (void *)skb->data;
+	bool acked = info->flags & IEEE80211_TX_STAT_ACK;
+
+	if (dropped)
+		acked = false;
+
+	if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) {
+		struct ieee80211_sub_if_data *sdata = NULL;
+		struct ieee80211_sub_if_data *iter_sdata;
+		u64 cookie = (unsigned long)skb;
+
+		rcu_read_lock();
+
+		if (skb->dev) {
+			list_for_each_entry_rcu(iter_sdata, &local->interfaces,
+						list) {
+				if (!iter_sdata->dev)
+					continue;
+
+				if (skb->dev == iter_sdata->dev) {
+					sdata = iter_sdata;
+					break;
+				}
+			}
+		} else {
+			sdata = rcu_dereference(local->p2p_sdata);
+		}
+
+		if (!sdata)
+			skb->dev = NULL;
+		else if (ieee80211_is_nullfunc(hdr->frame_control) ||
+			 ieee80211_is_qos_nullfunc(hdr->frame_control)) {
+			cfg80211_probe_status(sdata->dev, hdr->addr1,
+					      cookie, acked, GFP_ATOMIC);
+		} else {
+			cfg80211_mgmt_tx_status(&sdata->wdev, cookie, skb->data,
+						skb->len, acked, GFP_ATOMIC);
+		}
+
+		rcu_read_unlock();
+	}
+
+	if (unlikely(info->ack_frame_id)) {
+		struct sk_buff *ack_skb;
+		unsigned long flags;
+
+		spin_lock_irqsave(&local->ack_status_lock, flags);
+		ack_skb = idr_find(&local->ack_status_frames,
+				   info->ack_frame_id);
+		if (ack_skb)
+			idr_remove(&local->ack_status_frames,
+				   info->ack_frame_id);
+		spin_unlock_irqrestore(&local->ack_status_lock, flags);
+
+		if (ack_skb) {
+			if (!dropped) {
+				/* consumes ack_skb */
+				skb_complete_wifi_ack(ack_skb, acked);
+			} else {
+				dev_kfree_skb_any(ack_skb);
+			}
+		}
+	}
+}
+
 /*
  * Use a static threshold for now, best value to be determined
  * by testing ...
@@ -432,7 +502,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 				       IEEE80211_BAR_CTRL_TID_INFO_MASK) >>
 				      IEEE80211_BAR_CTRL_TID_INFO_SHIFT;
 
-				ieee80211_set_bar_pending(sta, tid, ssn);
+				if (local->hw.flags &
+				    IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL)
+					ieee80211_stop_tx_ba_session(&sta->sta, tid);
+				else
+					ieee80211_set_bar_pending(sta, tid, ssn);
 			}
 		}
 
@@ -469,6 +543,9 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 				sta->lost_packets = 0;
 			}
 		}
+
+		if (acked)
+			sta->last_ack_signal = info->status.ack_signal;
 	}
 
 	rcu_read_unlock();
@@ -515,62 +592,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 					msecs_to_jiffies(10));
 	}
 
-	if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) {
-		u64 cookie = (unsigned long)skb;
-		bool found = false;
-
-		acked = info->flags & IEEE80211_TX_STAT_ACK;
-
-		rcu_read_lock();
-
-		list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-			if (!sdata->dev)
-				continue;
-
-			if (skb->dev != sdata->dev)
-				continue;
-
-			found = true;
-			break;
-		}
-
-		if (!skb->dev) {
-			sdata = rcu_dereference(local->p2p_sdata);
-			if (sdata)
-				found = true;
-		}
-
-		if (!found)
-			skb->dev = NULL;
-		else if (ieee80211_is_nullfunc(hdr->frame_control) ||
-			 ieee80211_is_qos_nullfunc(hdr->frame_control)) {
-			cfg80211_probe_status(sdata->dev, hdr->addr1,
-					      cookie, acked, GFP_ATOMIC);
-		} else {
-			cfg80211_mgmt_tx_status(&sdata->wdev, cookie, skb->data,
-						skb->len, acked, GFP_ATOMIC);
-		}
-
-		rcu_read_unlock();
-	}
-
-	if (unlikely(info->ack_frame_id)) {
-		struct sk_buff *ack_skb;
-		unsigned long flags;
-
-		spin_lock_irqsave(&local->ack_status_lock, flags);
-		ack_skb = idr_find(&local->ack_status_frames,
-				   info->ack_frame_id);
-		if (ack_skb)
-			idr_remove(&local->ack_status_frames,
-				   info->ack_frame_id);
-		spin_unlock_irqrestore(&local->ack_status_lock, flags);
-
-		/* consumes ack_skb */
-		if (ack_skb)
-			skb_complete_wifi_ack(ack_skb,
-				info->flags & IEEE80211_TX_STAT_ACK);
-	}
+	ieee80211_report_used_skb(local, skb, false);
 
 	/* this was a transmitted frame, but now we want to reuse it */
 	skb_orphan(skb);
@@ -646,25 +668,8 @@ EXPORT_SYMBOL(ieee80211_report_low_ack);
 void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-
-	if (unlikely(info->ack_frame_id)) {
-		struct sk_buff *ack_skb;
-		unsigned long flags;
-
-		spin_lock_irqsave(&local->ack_status_lock, flags);
-		ack_skb = idr_find(&local->ack_status_frames,
-				   info->ack_frame_id);
-		if (ack_skb)
-			idr_remove(&local->ack_status_frames,
-				   info->ack_frame_id);
-		spin_unlock_irqrestore(&local->ack_status_lock, flags);
-
-		/* consumes ack_skb */
-		if (ack_skb)
-			dev_kfree_skb_any(ack_skb);
-	}
 
+	ieee80211_report_used_skb(local, skb, true);
 	dev_kfree_skb_any(skb);
 }
 EXPORT_SYMBOL(ieee80211_free_txskb);
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 18d9c8a..a8270b4 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -28,6 +28,25 @@
 #define VIF_PR_FMT	" vif:%s(%d%s)"
 #define VIF_PR_ARG	__get_str(vif_name), __entry->vif_type, __entry->p2p ? "/p2p" : ""
 
+#define CHANCTX_ENTRY	__field(u32, control_freq)				\
+			__field(u32, chan_width)				\
+			__field(u32, center_freq1)				\
+			__field(u32, center_freq2)				\
+			__field(u8, rx_chains_static)				\
+			__field(u8, rx_chains_dynamic)
+#define CHANCTX_ASSIGN	__entry->control_freq = ctx->conf.def.chan->center_freq;\
+			__entry->chan_width = ctx->conf.def.width;		\
+			__entry->center_freq1 = ctx->conf.def.center_freq1;	\
+			__entry->center_freq2 = ctx->conf.def.center_freq2;	\
+			__entry->rx_chains_static = ctx->conf.rx_chains_static;	\
+			__entry->rx_chains_dynamic = ctx->conf.rx_chains_dynamic
+#define CHANCTX_PR_FMT	" control:%d MHz width:%d center: %d/%d MHz chains:%d/%d"
+#define CHANCTX_PR_ARG	__entry->control_freq, __entry->chan_width,		\
+			__entry->center_freq1, __entry->center_freq2,		\
+			__entry->rx_chains_static, __entry->rx_chains_dynamic
+
+
+
 /*
  * Tracing for driver callbacks.
  */
@@ -301,20 +320,37 @@ TRACE_EVENT(drv_bss_info_changed,
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
 		VIF_ENTRY
+		__field(u32, changed)
 		__field(bool, assoc)
+		__field(bool, ibss_joined)
+		__field(bool, ibss_creator)
 		__field(u16, aid)
 		__field(bool, cts)
 		__field(bool, shortpre)
 		__field(bool, shortslot)
+		__field(bool, enable_beacon)
 		__field(u8, dtimper)
 		__field(u16, bcnint)
 		__field(u16, assoc_cap)
 		__field(u64, sync_tsf)
 		__field(u32, sync_device_ts)
 		__field(u32, basic_rates)
-		__field(u32, changed)
-		__field(bool, enable_beacon)
+		__array(int, mcast_rate, IEEE80211_NUM_BANDS)
 		__field(u16, ht_operation_mode)
+		__field(s32, cqm_rssi_thold);
+		__field(s32, cqm_rssi_hyst);
+		__field(u32, channel_width);
+		__field(u32, channel_cfreq1);
+		__dynamic_array(u32, arp_addr_list, info->arp_addr_cnt);
+		__field(bool, arp_filter_enabled);
+		__field(bool, qos);
+		__field(bool, idle);
+		__field(bool, ps);
+		__dynamic_array(u8, ssid, info->ssid_len);
+		__field(bool, hidden_ssid);
+		__field(int, txpower)
+		__field(u8, p2p_ctwindow)
+		__field(bool, p2p_oppps)
 	),
 
 	TP_fast_assign(
@@ -323,17 +359,36 @@ TRACE_EVENT(drv_bss_info_changed,
 		__entry->changed = changed;
 		__entry->aid = info->aid;
 		__entry->assoc = info->assoc;
+		__entry->ibss_joined = info->ibss_joined;
+		__entry->ibss_creator = info->ibss_creator;
 		__entry->shortpre = info->use_short_preamble;
 		__entry->cts = info->use_cts_prot;
 		__entry->shortslot = info->use_short_slot;
+		__entry->enable_beacon = info->enable_beacon;
 		__entry->dtimper = info->dtim_period;
 		__entry->bcnint = info->beacon_int;
 		__entry->assoc_cap = info->assoc_capability;
 		__entry->sync_tsf = info->sync_tsf;
 		__entry->sync_device_ts = info->sync_device_ts;
 		__entry->basic_rates = info->basic_rates;
-		__entry->enable_beacon = info->enable_beacon;
+		memcpy(__entry->mcast_rate, info->mcast_rate,
+		       sizeof(__entry->mcast_rate));
 		__entry->ht_operation_mode = info->ht_operation_mode;
+		__entry->cqm_rssi_thold = info->cqm_rssi_thold;
+		__entry->cqm_rssi_hyst = info->cqm_rssi_hyst;
+		__entry->channel_width = info->chandef.width;
+		__entry->channel_cfreq1 = info->chandef.center_freq1;
+		memcpy(__get_dynamic_array(arp_addr_list), info->arp_addr_list,
+		       sizeof(u32) * info->arp_addr_cnt);
+		__entry->arp_filter_enabled = info->arp_filter_enabled;
+		__entry->qos = info->qos;
+		__entry->idle = info->idle;
+		__entry->ps = info->ps;
+		memcpy(__get_dynamic_array(ssid), info->ssid, info->ssid_len);
+		__entry->hidden_ssid = info->hidden_ssid;
+		__entry->txpower = info->txpower;
+		__entry->p2p_ctwindow = info->p2p_ctwindow;
+		__entry->p2p_oppps = info->p2p_oppps;
 	),
 
 	TP_printk(
@@ -971,28 +1026,31 @@ TRACE_EVENT(drv_get_antenna,
 );
 
 TRACE_EVENT(drv_remain_on_channel,
-	TP_PROTO(struct ieee80211_local *local, struct ieee80211_channel *chan,
-		 enum nl80211_channel_type chantype, unsigned int duration),
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata,
+		 struct ieee80211_channel *chan,
+		 unsigned int duration),
 
-	TP_ARGS(local, chan, chantype, duration),
+	TP_ARGS(local, sdata, chan, duration),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
+		VIF_ENTRY
 		__field(int, center_freq)
-		__field(int, channel_type)
 		__field(unsigned int, duration)
 	),
 
 	TP_fast_assign(
 		LOCAL_ASSIGN;
+		VIF_ASSIGN;
 		__entry->center_freq = chan->center_freq;
-		__entry->channel_type = chantype;
 		__entry->duration = duration;
 	),
 
 	TP_printk(
-		LOCAL_PR_FMT " freq:%dMHz duration:%dms",
-		LOCAL_PR_ARG, __entry->center_freq, __entry->duration
+		LOCAL_PR_FMT  VIF_PR_FMT " freq:%dMHz duration:%dms",
+		LOCAL_PR_ARG, VIF_PR_ARG,
+		__entry->center_freq, __entry->duration
 	)
 );
 
@@ -1001,34 +1059,6 @@ DEFINE_EVENT(local_only_evt, drv_cancel_remain_on_channel,
 	TP_ARGS(local)
 );
 
-TRACE_EVENT(drv_offchannel_tx,
-	TP_PROTO(struct ieee80211_local *local, struct sk_buff *skb,
-		 struct ieee80211_channel *chan,
-		 enum nl80211_channel_type channel_type,
-		 unsigned int wait),
-
-	TP_ARGS(local, skb, chan, channel_type, wait),
-
-	TP_STRUCT__entry(
-		LOCAL_ENTRY
-		__field(int, center_freq)
-		__field(int, channel_type)
-		__field(unsigned int, wait)
-	),
-
-	TP_fast_assign(
-		LOCAL_ASSIGN;
-		__entry->center_freq = chan->center_freq;
-		__entry->channel_type = channel_type;
-		__entry->wait = wait;
-	),
-
-	TP_printk(
-		LOCAL_PR_FMT " freq:%dMHz, wait:%dms",
-		LOCAL_PR_ARG, __entry->center_freq, __entry->wait
-	)
-);
-
 TRACE_EVENT(drv_set_ringparam,
 	TP_PROTO(struct ieee80211_local *local, u32 tx, u32 rx),
 
@@ -1256,6 +1286,146 @@ DEFINE_EVENT(local_sdata_evt, drv_mgd_prepare_tx,
 	TP_ARGS(local, sdata)
 );
 
+DECLARE_EVENT_CLASS(local_chanctx,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_chanctx *ctx),
+
+	TP_ARGS(local, ctx),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		CHANCTX_ENTRY
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		CHANCTX_ASSIGN;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT CHANCTX_PR_FMT,
+		LOCAL_PR_ARG, CHANCTX_PR_ARG
+	)
+);
+
+DEFINE_EVENT(local_chanctx, drv_add_chanctx,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_chanctx *ctx),
+	TP_ARGS(local, ctx)
+);
+
+DEFINE_EVENT(local_chanctx, drv_remove_chanctx,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_chanctx *ctx),
+	TP_ARGS(local, ctx)
+);
+
+TRACE_EVENT(drv_change_chanctx,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_chanctx *ctx,
+		 u32 changed),
+
+	TP_ARGS(local, ctx, changed),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		CHANCTX_ENTRY
+		__field(u32, changed)
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		CHANCTX_ASSIGN;
+		__entry->changed = changed;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT CHANCTX_PR_FMT " changed:%#x",
+		LOCAL_PR_ARG, CHANCTX_PR_ARG, __entry->changed
+	)
+);
+
+DECLARE_EVENT_CLASS(local_sdata_chanctx,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata,
+		 struct ieee80211_chanctx *ctx),
+
+	TP_ARGS(local, sdata, ctx),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		VIF_ENTRY
+		CHANCTX_ENTRY
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		VIF_ASSIGN;
+		CHANCTX_ASSIGN;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT VIF_PR_FMT CHANCTX_PR_FMT,
+		LOCAL_PR_ARG, VIF_PR_ARG, CHANCTX_PR_ARG
+	)
+);
+
+DEFINE_EVENT(local_sdata_chanctx, drv_assign_vif_chanctx,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata,
+		 struct ieee80211_chanctx *ctx),
+	TP_ARGS(local, sdata, ctx)
+);
+
+DEFINE_EVENT(local_sdata_chanctx, drv_unassign_vif_chanctx,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata,
+		 struct ieee80211_chanctx *ctx),
+	TP_ARGS(local, sdata, ctx)
+);
+
+TRACE_EVENT(drv_start_ap,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata,
+		 struct ieee80211_bss_conf *info),
+
+	TP_ARGS(local, sdata, info),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		VIF_ENTRY
+		__field(u8, dtimper)
+		__field(u16, bcnint)
+		__dynamic_array(u8, ssid, info->ssid_len);
+		__field(bool, hidden_ssid);
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		VIF_ASSIGN;
+		__entry->dtimper = info->dtim_period;
+		__entry->bcnint = info->beacon_int;
+		memcpy(__get_dynamic_array(ssid), info->ssid, info->ssid_len);
+		__entry->hidden_ssid = info->hidden_ssid;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT  VIF_PR_FMT,
+		LOCAL_PR_ARG, VIF_PR_ARG
+	)
+);
+
+DEFINE_EVENT(local_sdata_evt, drv_stop_ap,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata),
+	TP_ARGS(local, sdata)
+);
+
+DEFINE_EVENT(local_only_evt, drv_restart_complete,
+	TP_PROTO(struct ieee80211_local *local),
+	TP_ARGS(local)
+);
+
 /*
  * Tracing for API calls that drivers call.
  */
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index b858ebe..e9eadc4 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -324,22 +324,20 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
 
-	/*
-	 * virtual interfaces are protected by RCU
-	 */
-	rcu_read_lock();
-
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-		struct ieee80211_if_ap *ap;
-		if (sdata->vif.type != NL80211_IFTYPE_AP)
+		struct ps_data *ps;
+
+		if (sdata->vif.type == NL80211_IFTYPE_AP)
+			ps = &sdata->u.ap.ps;
+		else
 			continue;
-		ap = &sdata->u.ap;
-		skb = skb_dequeue(&ap->ps_bc_buf);
+
+		skb = skb_dequeue(&ps->bc_buf);
 		if (skb) {
 			purged++;
 			dev_kfree_skb(skb);
 		}
-		total += skb_queue_len(&ap->ps_bc_buf);
+		total += skb_queue_len(&ps->bc_buf);
 	}
 
 	/*
@@ -360,8 +358,6 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
 		}
 	}
 
-	rcu_read_unlock();
-
 	local->total_ps_buffered = total;
 	ps_dbg_hw(&local->hw, "PS buffers full - purged %d frames\n", purged);
 }
@@ -371,6 +367,7 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)
 {
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
+	struct ps_data *ps;
 
 	/*
 	 * broadcast/multicast frame
@@ -380,16 +377,24 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)
 	 * This is done either by the hardware or us.
 	 */
 
-	/* powersaving STAs only in AP/VLAN mode */
-	if (!tx->sdata->bss)
+	/* powersaving STAs currently only in AP/VLAN mode */
+	if (tx->sdata->vif.type == NL80211_IFTYPE_AP ||
+	    tx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+		if (!tx->sdata->bss)
+			return TX_CONTINUE;
+
+		ps = &tx->sdata->bss->ps;
+	} else {
 		return TX_CONTINUE;
+	}
+
 
 	/* no buffering for ordered frames */
 	if (ieee80211_has_order(hdr->frame_control))
 		return TX_CONTINUE;
 
 	/* no stations in PS mode */
-	if (!atomic_read(&tx->sdata->bss->num_sta_ps))
+	if (!atomic_read(&ps->num_sta_ps))
 		return TX_CONTINUE;
 
 	info->flags |= IEEE80211_TX_CTL_SEND_AFTER_DTIM;
@@ -404,14 +409,14 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)
 	if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
 		purge_old_ps_buffers(tx->local);
 
-	if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >= AP_MAX_BC_BUFFER) {
+	if (skb_queue_len(&ps->bc_buf) >= AP_MAX_BC_BUFFER) {
 		ps_dbg(tx->sdata,
 		       "BC TX buffer full - dropping the oldest frame\n");
-		dev_kfree_skb(skb_dequeue(&tx->sdata->bss->ps_bc_buf));
+		dev_kfree_skb(skb_dequeue(&ps->bc_buf));
 	} else
 		tx->local->total_ps_buffered++;
 
-	skb_queue_tail(&tx->sdata->bss->ps_bc_buf, tx->skb);
+	skb_queue_tail(&ps->bc_buf, tx->skb);
 
 	return TX_QUEUED;
 }
@@ -951,7 +956,6 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
 	fragnum = 0;
 
 	skb_queue_walk(&tx->skbs, skb) {
-		int next_len;
 		const __le16 morefrags = cpu_to_le16(IEEE80211_FCTL_MOREFRAGS);
 
 		hdr = (void *)skb->data;
@@ -970,7 +974,6 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
 			info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE;
 		} else {
 			hdr->frame_control &= ~morefrags;
-			next_len = 0;
 		}
 		hdr->seq_ctrl |= cpu_to_le16(fragnum & IEEE80211_SCTL_FRAG);
 		fragnum++;
@@ -1372,7 +1375,8 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
  * Returns false if the frame couldn't be transmitted but was queued instead.
  */
 static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
-			 struct sk_buff *skb, bool txpending)
+			 struct sk_buff *skb, bool txpending,
+			 enum ieee80211_band band)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_tx_data tx;
@@ -1386,20 +1390,18 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
 		return true;
 	}
 
-	rcu_read_lock();
-
 	/* initialises tx */
 	led_len = skb->len;
 	res_prepare = ieee80211_tx_prepare(sdata, &tx, skb);
 
 	if (unlikely(res_prepare == TX_DROP)) {
 		ieee80211_free_txskb(&local->hw, skb);
-		goto out;
+		return true;
 	} else if (unlikely(res_prepare == TX_QUEUED)) {
-		goto out;
+		return true;
 	}
 
-	info->band = local->hw.conf.channel->band;
+	info->band = band;
 
 	/* set up hw_queue value early */
 	if (!(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) ||
@@ -1410,8 +1412,7 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
 	if (!invoke_tx_handlers(&tx))
 		result = __ieee80211_tx(local, &tx.skbs, led_len,
 					tx.sta, txpending);
- out:
-	rcu_read_unlock();
+
 	return result;
 }
 
@@ -1446,7 +1447,8 @@ static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata,
 	return 0;
 }
 
-void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
+void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+		    enum ieee80211_band band)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -1454,8 +1456,6 @@ void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
 	int headroom;
 	bool may_encrypt;
 
-	rcu_read_lock();
-
 	may_encrypt = !(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT);
 
 	headroom = local->tx_headroom;
@@ -1466,7 +1466,6 @@ void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
 
 	if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) {
 		ieee80211_free_txskb(&local->hw, skb);
-		rcu_read_unlock();
 		return;
 	}
 
@@ -1478,13 +1477,11 @@ void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
 	    !is_multicast_ether_addr(hdr->addr1) &&
 	    mesh_nexthop_resolve(skb, sdata)) {
 		/* skb queued: don't free */
-		rcu_read_unlock();
 		return;
 	}
 
 	ieee80211_set_qos_hdr(sdata, skb);
-	ieee80211_tx(sdata, skb, false);
-	rcu_read_unlock();
+	ieee80211_tx(sdata, skb, false, band);
 }
 
 static bool ieee80211_parse_tx_radiotap(struct sk_buff *skb)
@@ -1574,7 +1571,8 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
 					 struct net_device *dev)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_channel *chan = local->hw.conf.channel;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_channel *chan;
 	struct ieee80211_radiotap_header *prthdr =
 		(struct ieee80211_radiotap_header *)skb->data;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -1583,26 +1581,6 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
 	u16 len_rthdr;
 	int hdrlen;
 
-	/*
-	 * Frame injection is not allowed if beaconing is not allowed
-	 * or if we need radar detection. Beaconing is usually not allowed when
-	 * the mode or operation (Adhoc, AP, Mesh) does not support DFS.
-	 * Passive scan is also used in world regulatory domains where
-	 * your country is not known and as such it should be treated as
-	 * NO TX unless the channel is explicitly allowed in which case
-	 * your current regulatory domain would not have the passive scan
-	 * flag.
-	 *
-	 * Since AP mode uses monitor interfaces to inject/TX management
-	 * frames we can make AP mode the exception to this rule once it
-	 * supports radar detection as its implementation can deal with
-	 * radar detection by itself. We can do that later by adding a
-	 * monitor flag interfaces used for AP support.
-	 */
-	if ((chan->flags & (IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_RADAR |
-	     IEEE80211_CHAN_PASSIVE_SCAN)))
-		goto fail;
-
 	/* check for not even having the fixed radiotap header part */
 	if (unlikely(skb->len < sizeof(struct ieee80211_radiotap_header)))
 		goto fail; /* too short to be possibly valid */
@@ -1688,11 +1666,45 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
 		}
 	}
 
-	ieee80211_xmit(sdata, skb);
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (!chanctx_conf) {
+		tmp_sdata = rcu_dereference(local->monitor_sdata);
+		if (tmp_sdata)
+			chanctx_conf =
+				rcu_dereference(tmp_sdata->vif.chanctx_conf);
+	}
+	if (!chanctx_conf)
+		goto fail_rcu;
+
+	chan = chanctx_conf->def.chan;
+
+	/*
+	 * Frame injection is not allowed if beaconing is not allowed
+	 * or if we need radar detection. Beaconing is usually not allowed when
+	 * the mode or operation (Adhoc, AP, Mesh) does not support DFS.
+	 * Passive scan is also used in world regulatory domains where
+	 * your country is not known and as such it should be treated as
+	 * NO TX unless the channel is explicitly allowed in which case
+	 * your current regulatory domain would not have the passive scan
+	 * flag.
+	 *
+	 * Since AP mode uses monitor interfaces to inject/TX management
+	 * frames we can make AP mode the exception to this rule once it
+	 * supports radar detection as its implementation can deal with
+	 * radar detection by itself. We can do that later by adding a
+	 * monitor flag interfaces used for AP support.
+	 */
+	if ((chan->flags & (IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_RADAR |
+			    IEEE80211_CHAN_PASSIVE_SCAN)))
+		goto fail_rcu;
+
+	ieee80211_xmit(sdata, skb, chan->band);
 	rcu_read_unlock();
 
 	return NETDEV_TX_OK;
 
+fail_rcu:
+	rcu_read_unlock();
 fail:
 	dev_kfree_skb(skb);
 	return NETDEV_TX_OK; /* meaning, we dealt with the skb */
@@ -1734,6 +1746,9 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 	bool multicast;
 	u32 info_flags = 0;
 	u16 info_id = 0;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_sub_if_data *ap_sdata;
+	enum ieee80211_band band;
 
 	if (unlikely(skb->len < ETH_HLEN))
 		goto fail;
@@ -1743,9 +1758,10 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 	ethertype = (skb->data[12] << 8) | skb->data[13];
 	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
 
+	rcu_read_lock();
+
 	switch (sdata->vif.type) {
 	case NL80211_IFTYPE_AP_VLAN:
-		rcu_read_lock();
 		sta = rcu_dereference(sdata->u.vlan.sta);
 		if (sta) {
 			fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
@@ -1758,7 +1774,12 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 			authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
 			wme_sta = test_sta_flag(sta, WLAN_STA_WME);
 		}
-		rcu_read_unlock();
+		ap_sdata = container_of(sdata->bss, struct ieee80211_sub_if_data,
+					u.ap);
+		chanctx_conf = rcu_dereference(ap_sdata->vif.chanctx_conf);
+		if (!chanctx_conf)
+			goto fail_rcu;
+		band = chanctx_conf->def.chan->band;
 		if (sta)
 			break;
 		/* fall through */
@@ -1769,6 +1790,11 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		memcpy(hdr.addr2, sdata->vif.addr, ETH_ALEN);
 		memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN);
 		hdrlen = 24;
+		if (sdata->vif.type == NL80211_IFTYPE_AP)
+			chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+		if (!chanctx_conf)
+			goto fail_rcu;
+		band = chanctx_conf->def.chan->band;
 		break;
 	case NL80211_IFTYPE_WDS:
 		fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
@@ -1778,15 +1804,20 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		memcpy(hdr.addr3, skb->data, ETH_ALEN);
 		memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
 		hdrlen = 30;
+		/*
+		 * This is the exception! WDS style interfaces are prohibited
+		 * when channel contexts are in used so this must be valid
+		 */
+		band = local->hw.conf.channel->band;
 		break;
 #ifdef CONFIG_MAC80211_MESH
 	case NL80211_IFTYPE_MESH_POINT:
 		if (!sdata->u.mesh.mshcfg.dot11MeshTTL) {
 			/* Do not send frames with mesh_ttl == 0 */
 			sdata->u.mesh.mshstats.dropped_frames_ttl++;
-			goto fail;
+			goto fail_rcu;
 		}
-		rcu_read_lock();
+
 		if (!is_multicast_ether_addr(skb->data)) {
 			mpath = mesh_path_lookup(skb->data, sdata);
 			if (!mpath)
@@ -1803,7 +1834,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		    !(mppath && !ether_addr_equal(mppath->mpp, skb->data))) {
 			hdrlen = ieee80211_fill_mesh_addresses(&hdr, &fc,
 					skb->data, skb->data + ETH_ALEN);
-			rcu_read_unlock();
 			meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr,
 					sdata, NULL, NULL);
 		} else {
@@ -1819,7 +1849,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 				mesh_da = mppath->mpp;
 			else if (mpath)
 				mesh_da = mpath->dst;
-			rcu_read_unlock();
 
 			hdrlen = ieee80211_fill_mesh_addresses(&hdr, &fc,
 					mesh_da, sdata->vif.addr);
@@ -1839,13 +1868,16 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 							skb->data + ETH_ALEN);
 
 		}
+		chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+		if (!chanctx_conf)
+			goto fail_rcu;
+		band = chanctx_conf->def.chan->band;
 		break;
 #endif
 	case NL80211_IFTYPE_STATION:
 		if (sdata->wdev.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) {
 			bool tdls_peer = false;
 
-			rcu_read_lock();
 			sta = sta_info_get(sdata, skb->data);
 			if (sta) {
 				authorized = test_sta_flag(sta,
@@ -1856,7 +1888,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 				tdls_auth = test_sta_flag(sta,
 						WLAN_STA_TDLS_PEER_AUTH);
 			}
-			rcu_read_unlock();
 
 			/*
 			 * If the TDLS link is enabled, send everything
@@ -1871,7 +1902,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		if (tdls_direct) {
 			/* link during setup - throw out frames to peer */
 			if (!tdls_auth)
-				goto fail;
+				goto fail_rcu;
 
 			/* DA SA BSSID */
 			memcpy(hdr.addr1, skb->data, ETH_ALEN);
@@ -1896,6 +1927,10 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 			memcpy(hdr.addr3, skb->data, ETH_ALEN);
 			hdrlen = 24;
 		}
+		chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+		if (!chanctx_conf)
+			goto fail_rcu;
+		band = chanctx_conf->def.chan->band;
 		break;
 	case NL80211_IFTYPE_ADHOC:
 		/* DA SA BSSID */
@@ -1903,9 +1938,13 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
 		memcpy(hdr.addr3, sdata->u.ibss.bssid, ETH_ALEN);
 		hdrlen = 24;
+		chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+		if (!chanctx_conf)
+			goto fail_rcu;
+		band = chanctx_conf->def.chan->band;
 		break;
 	default:
-		goto fail;
+		goto fail_rcu;
 	}
 
 	/*
@@ -1915,13 +1954,11 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 	 */
 	multicast = is_multicast_ether_addr(hdr.addr1);
 	if (!multicast) {
-		rcu_read_lock();
 		sta = sta_info_get(sdata, hdr.addr1);
 		if (sta) {
 			authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
 			wme_sta = test_sta_flag(sta, WLAN_STA_WME);
 		}
-		rcu_read_unlock();
 	}
 
 	/* For mesh, the use of the QoS header is mandatory */
@@ -1949,7 +1986,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 
 		I802_DEBUG_INC(local->tx_handlers_drop_unauth_port);
 
-		goto fail;
+		goto fail_rcu;
 	}
 
 	if (unlikely(!multicast && skb->sk &&
@@ -2004,7 +2041,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		kfree_skb(tmp_skb);
 
 		if (!skb)
-			goto fail;
+			goto fail_rcu;
 	}
 
 	hdr.frame_control = fc;
@@ -2052,7 +2089,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		head_need = max_t(int, 0, head_need);
 		if (ieee80211_skb_resize(sdata, skb, head_need, true)) {
 			ieee80211_free_txskb(&local->hw, skb);
-			return NETDEV_TX_OK;
+			skb = NULL;
+			goto fail_rcu;
 		}
 	}
 
@@ -2104,10 +2142,13 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 	info->flags = info_flags;
 	info->ack_frame_id = info_id;
 
-	ieee80211_xmit(sdata, skb);
+	ieee80211_xmit(sdata, skb, band);
+	rcu_read_unlock();
 
 	return NETDEV_TX_OK;
 
+ fail_rcu:
+	rcu_read_unlock();
  fail:
 	dev_kfree_skb(skb);
 	return NETDEV_TX_OK;
@@ -2142,11 +2183,18 @@ static bool ieee80211_tx_pending_skb(struct ieee80211_local *local,
 	struct sta_info *sta;
 	struct ieee80211_hdr *hdr;
 	bool result;
+	struct ieee80211_chanctx_conf *chanctx_conf;
 
 	sdata = vif_to_sdata(info->control.vif);
 
 	if (info->flags & IEEE80211_TX_INTFL_NEED_TXPROCESSING) {
-		result = ieee80211_tx(sdata, skb, true);
+		chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+		if (unlikely(!chanctx_conf)) {
+			dev_kfree_skb(skb);
+			return true;
+		}
+		result = ieee80211_tx(sdata, skb, true,
+				      chanctx_conf->def.chan->band);
 	} else {
 		struct sk_buff_head skbs;
 
@@ -2214,9 +2262,8 @@ void ieee80211_tx_pending(unsigned long data)
 /* functions for drivers to get certain frames */
 
 static void ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_ap *bss,
-				     struct sk_buff *skb,
-				     struct beacon_data *beacon)
+				     struct ps_data *ps,
+				     struct sk_buff *skb)
 {
 	u8 *pos, *tim;
 	int aid0 = 0;
@@ -2224,27 +2271,27 @@ static void ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
 
 	/* Generate bitmap for TIM only if there are any STAs in power save
 	 * mode. */
-	if (atomic_read(&bss->num_sta_ps) > 0)
+	if (atomic_read(&ps->num_sta_ps) > 0)
 		/* in the hope that this is faster than
 		 * checking byte-for-byte */
-		have_bits = !bitmap_empty((unsigned long*)bss->tim,
+		have_bits = !bitmap_empty((unsigned long*)ps->tim,
 					  IEEE80211_MAX_AID+1);
 
-	if (bss->dtim_count == 0)
-		bss->dtim_count = sdata->vif.bss_conf.dtim_period - 1;
+	if (ps->dtim_count == 0)
+		ps->dtim_count = sdata->vif.bss_conf.dtim_period - 1;
 	else
-		bss->dtim_count--;
+		ps->dtim_count--;
 
 	tim = pos = (u8 *) skb_put(skb, 6);
 	*pos++ = WLAN_EID_TIM;
 	*pos++ = 4;
-	*pos++ = bss->dtim_count;
+	*pos++ = ps->dtim_count;
 	*pos++ = sdata->vif.bss_conf.dtim_period;
 
-	if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf))
+	if (ps->dtim_count == 0 && !skb_queue_empty(&ps->bc_buf))
 		aid0 = 1;
 
-	bss->dtim_bc_mc = aid0 == 1;
+	ps->dtim_bc_mc = aid0 == 1;
 
 	if (have_bits) {
 		/* Find largest even number N1 so that bits numbered 1 through
@@ -2252,14 +2299,14 @@ static void ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
 		 * (N2 + 1) x 8 through 2007 are 0. */
 		n1 = 0;
 		for (i = 0; i < IEEE80211_MAX_TIM_LEN; i++) {
-			if (bss->tim[i]) {
+			if (ps->tim[i]) {
 				n1 = i & 0xfe;
 				break;
 			}
 		}
 		n2 = n1;
 		for (i = IEEE80211_MAX_TIM_LEN - 1; i >= n1; i--) {
-			if (bss->tim[i]) {
+			if (ps->tim[i]) {
 				n2 = i;
 				break;
 			}
@@ -2269,7 +2316,7 @@ static void ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
 		*pos++ = n1 | aid0;
 		/* Part Virt Bitmap */
 		skb_put(skb, n2 - n1);
-		memcpy(pos, bss->tim + n1, n2 - n1 + 1);
+		memcpy(pos, ps->tim + n1, n2 - n1 + 1);
 
 		tim[1] = n2 - n1 + 4;
 	} else {
@@ -2286,16 +2333,16 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 	struct sk_buff *skb = NULL;
 	struct ieee80211_tx_info *info;
 	struct ieee80211_sub_if_data *sdata = NULL;
-	struct ieee80211_if_ap *ap = NULL;
-	struct beacon_data *beacon;
-	enum ieee80211_band band = local->oper_channel->band;
+	enum ieee80211_band band;
 	struct ieee80211_tx_rate_control txrc;
+	struct ieee80211_chanctx_conf *chanctx_conf;
 
 	rcu_read_lock();
 
 	sdata = vif_to_sdata(vif);
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 
-	if (!ieee80211_sdata_running(sdata))
+	if (!ieee80211_sdata_running(sdata) || !chanctx_conf)
 		goto out;
 
 	if (tim_offset)
@@ -2304,8 +2351,9 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 		*tim_length = 0;
 
 	if (sdata->vif.type == NL80211_IFTYPE_AP) {
-		ap = &sdata->u.ap;
-		beacon = rcu_dereference(ap->beacon);
+		struct ieee80211_if_ap *ap = &sdata->u.ap;
+		struct beacon_data *beacon = rcu_dereference(ap->beacon);
+
 		if (beacon) {
 			/*
 			 * headroom, head length,
@@ -2329,14 +2377,12 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 			 * of the tim bitmap in mac80211 and the driver.
 			 */
 			if (local->tim_in_locked_section) {
-				ieee80211_beacon_add_tim(sdata, ap, skb,
-							 beacon);
+				ieee80211_beacon_add_tim(sdata, &ap->ps, skb);
 			} else {
 				unsigned long flags;
 
 				spin_lock_irqsave(&local->tim_lock, flags);
-				ieee80211_beacon_add_tim(sdata, ap, skb,
-							 beacon);
+				ieee80211_beacon_add_tim(sdata, &ap->ps, skb);
 				spin_unlock_irqrestore(&local->tim_lock, flags);
 			}
 
@@ -2412,6 +2458,8 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 		*pos++ = WLAN_EID_SSID;
 		*pos++ = 0x0;
 
+		band = chanctx_conf->def.chan->band;
+
 		if (ieee80211_add_srates_ie(sdata, skb, true, band) ||
 		    mesh_add_ds_params_ie(skb, sdata) ||
 		    ieee80211_add_ext_srates_ie(sdata, skb, true, band) ||
@@ -2429,6 +2477,8 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 		goto out;
 	}
 
+	band = chanctx_conf->def.chan->band;
+
 	info = IEEE80211_SKB_CB(skb);
 
 	info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
@@ -2573,7 +2623,7 @@ EXPORT_SYMBOL(ieee80211_nullfunc_get);
 struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif,
 				       const u8 *ssid, size_t ssid_len,
-				       const u8 *ie, size_t ie_len)
+				       size_t tailroom)
 {
 	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_local *local;
@@ -2587,7 +2637,7 @@ struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw,
 	ie_ssid_len = 2 + ssid_len;
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*hdr) +
-			    ie_ssid_len + ie_len);
+			    ie_ssid_len + tailroom);
 	if (!skb)
 		return NULL;
 
@@ -2608,11 +2658,6 @@ struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw,
 		memcpy(pos, ssid, ssid_len);
 	pos += ssid_len;
 
-	if (ie) {
-		pos = skb_put(skb, ie_len);
-		memcpy(pos, ie, ie_len);
-	}
-
 	return skb;
 }
 EXPORT_SYMBOL(ieee80211_probereq_get);
@@ -2656,29 +2701,40 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
 	struct sk_buff *skb = NULL;
 	struct ieee80211_tx_data tx;
 	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_if_ap *bss = NULL;
-	struct beacon_data *beacon;
+	struct ps_data *ps;
 	struct ieee80211_tx_info *info;
+	struct ieee80211_chanctx_conf *chanctx_conf;
 
 	sdata = vif_to_sdata(vif);
-	bss = &sdata->u.ap;
 
 	rcu_read_lock();
-	beacon = rcu_dereference(bss->beacon);
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+
+	if (!chanctx_conf)
+		goto out;
 
-	if (sdata->vif.type != NL80211_IFTYPE_AP || !beacon || !beacon->head)
+	if (sdata->vif.type == NL80211_IFTYPE_AP) {
+		struct beacon_data *beacon =
+				rcu_dereference(sdata->u.ap.beacon);
+
+		if (!beacon || !beacon->head)
+			goto out;
+
+		ps = &sdata->u.ap.ps;
+	} else {
 		goto out;
+	}
 
-	if (bss->dtim_count != 0 || !bss->dtim_bc_mc)
+	if (ps->dtim_count != 0 || !ps->dtim_bc_mc)
 		goto out; /* send buffered bc/mc only after DTIM beacon */
 
 	while (1) {
-		skb = skb_dequeue(&bss->ps_bc_buf);
+		skb = skb_dequeue(&ps->bc_buf);
 		if (!skb)
 			goto out;
 		local->total_ps_buffered--;
 
-		if (!skb_queue_empty(&bss->ps_bc_buf) && skb->len >= 2) {
+		if (!skb_queue_empty(&ps->bc_buf) && skb->len >= 2) {
 			struct ieee80211_hdr *hdr =
 				(struct ieee80211_hdr *) skb->data;
 			/* more buffered multicast/broadcast frames ==> set
@@ -2696,7 +2752,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
 	info = IEEE80211_SKB_CB(skb);
 
 	tx.flags |= IEEE80211_TX_PS_BUFFERED;
-	info->band = local->oper_channel->band;
+	info->band = chanctx_conf->def.chan->band;
 
 	if (invoke_tx_handlers(&tx))
 		skb = NULL;
@@ -2707,8 +2763,9 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
 }
 EXPORT_SYMBOL(ieee80211_get_buffered_bc);
 
-void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
-			  struct sk_buff *skb, int tid)
+void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
+				 struct sk_buff *skb, int tid,
+				 enum ieee80211_band band)
 {
 	int ac = ieee802_1d_to_ac[tid & 7];
 
@@ -2725,6 +2782,6 @@ void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
 	 * requirements are that we do not come into tx with bhs on.
 	 */
 	local_bh_disable();
-	ieee80211_xmit(sdata, skb);
+	ieee80211_xmit(sdata, skb, band);
 	local_bh_enable();
 }
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 0151ae3..f11e8c5 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -512,7 +512,7 @@ void ieee80211_wake_queues(struct ieee80211_hw *hw)
 EXPORT_SYMBOL(ieee80211_wake_queues);
 
 void ieee80211_iterate_active_interfaces(
-	struct ieee80211_hw *hw,
+	struct ieee80211_hw *hw, u32 iter_flags,
 	void (*iterator)(void *data, u8 *mac,
 			 struct ieee80211_vif *vif),
 	void *data)
@@ -530,6 +530,9 @@ void ieee80211_iterate_active_interfaces(
 		default:
 			break;
 		}
+		if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) &&
+		    !(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
+			continue;
 		if (ieee80211_sdata_running(sdata))
 			iterator(data, sdata->vif.addr,
 				 &sdata->vif);
@@ -537,7 +540,9 @@ void ieee80211_iterate_active_interfaces(
 
 	sdata = rcu_dereference_protected(local->monitor_sdata,
 					  lockdep_is_held(&local->iflist_mtx));
-	if (sdata)
+	if (sdata &&
+	    (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL ||
+	     sdata->flags & IEEE80211_SDATA_IN_DRIVER))
 		iterator(data, sdata->vif.addr, &sdata->vif);
 
 	mutex_unlock(&local->iflist_mtx);
@@ -545,7 +550,7 @@ void ieee80211_iterate_active_interfaces(
 EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
 
 void ieee80211_iterate_active_interfaces_atomic(
-	struct ieee80211_hw *hw,
+	struct ieee80211_hw *hw, u32 iter_flags,
 	void (*iterator)(void *data, u8 *mac,
 			 struct ieee80211_vif *vif),
 	void *data)
@@ -563,13 +568,18 @@ void ieee80211_iterate_active_interfaces_atomic(
 		default:
 			break;
 		}
+		if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) &&
+		    !(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
+			continue;
 		if (ieee80211_sdata_running(sdata))
 			iterator(data, sdata->vif.addr,
 				 &sdata->vif);
 	}
 
 	sdata = rcu_dereference(local->monitor_sdata);
-	if (sdata)
+	if (sdata &&
+	    (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL ||
+	     sdata->flags & IEEE80211_SDATA_IN_DRIVER))
 		iterator(data, sdata->vif.addr, &sdata->vif);
 
 	rcu_read_unlock();
@@ -769,6 +779,18 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
 			else
 				elem_parse_failed = true;
 			break;
+		case WLAN_EID_VHT_CAPABILITY:
+			if (elen >= sizeof(struct ieee80211_vht_cap))
+				elems->vht_cap_elem = (void *)pos;
+			else
+				elem_parse_failed = true;
+			break;
+		case WLAN_EID_VHT_OPERATION:
+			if (elen >= sizeof(struct ieee80211_vht_operation))
+				elems->vht_operation = (void *)pos;
+			else
+				elem_parse_failed = true;
+			break;
 		case WLAN_EID_MESH_ID:
 			elems->mesh_id = pos;
 			elems->mesh_id_len = elen;
@@ -837,7 +859,7 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
 		if (elem_parse_failed)
 			elems->parse_error = true;
 		else
-			set_bit(id, seen_elems);
+			__set_bit(id, seen_elems);
 
 		left -= elen;
 		pos += elen;
@@ -860,6 +882,7 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_tx_queue_params qparam;
+	struct ieee80211_chanctx_conf *chanctx_conf;
 	int ac;
 	bool use_11b, enable_qos;
 	int aCWmin, aCWmax;
@@ -872,8 +895,12 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
 
 	memset(&qparam, 0, sizeof(qparam));
 
-	use_11b = (local->oper_channel->band == IEEE80211_BAND_2GHZ) &&
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	use_11b = (chanctx_conf &&
+		   chanctx_conf->def.chan->band == IEEE80211_BAND_2GHZ) &&
 		 !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE);
+	rcu_read_unlock();
 
 	/*
 	 * By default disable QoS in STA mode for old access points, which do
@@ -952,7 +979,7 @@ void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 				  const size_t supp_rates_len,
 				  const u8 *supp_rates)
 {
-	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_chanctx_conf *chanctx_conf;
 	int i, have_higher_than_11mbit = 0;
 
 	/* cf. IEEE 802.11 9.2.12 */
@@ -960,11 +987,16 @@ void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 		if ((supp_rates[i] & 0x7f) * 5 > 110)
 			have_higher_than_11mbit = 1;
 
-	if (local->oper_channel->band == IEEE80211_BAND_2GHZ &&
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+
+	if (chanctx_conf &&
+	    chanctx_conf->def.chan->band == IEEE80211_BAND_2GHZ &&
 	    have_higher_than_11mbit)
 		sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
 	else
 		sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
+	rcu_read_unlock();
 
 	ieee80211_set_wmm_default(sdata, true);
 }
@@ -996,7 +1028,7 @@ u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
 }
 
 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
-			 u16 transaction, u16 auth_alg,
+			 u16 transaction, u16 auth_alg, u16 status,
 			 u8 *extra, size_t extra_len, const u8 *da,
 			 const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx)
 {
@@ -1021,7 +1053,7 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 	memcpy(mgmt->bssid, bssid, ETH_ALEN);
 	mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg);
 	mgmt->u.auth.auth_transaction = cpu_to_le16(transaction);
-	mgmt->u.auth.status_code = cpu_to_le16(0);
+	mgmt->u.auth.status_code = cpu_to_le16(status);
 	if (extra)
 		memcpy(skb_put(skb, extra_len), extra, extra_len);
 
@@ -1075,12 +1107,12 @@ void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 }
 
 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
-			     const u8 *ie, size_t ie_len,
+			     size_t buffer_len, const u8 *ie, size_t ie_len,
 			     enum ieee80211_band band, u32 rate_mask,
 			     u8 channel)
 {
 	struct ieee80211_supported_band *sband;
-	u8 *pos;
+	u8 *pos = buffer, *end = buffer + buffer_len;
 	size_t offset = 0, noffset;
 	int supp_rates_len, i;
 	u8 rates[32];
@@ -1091,8 +1123,6 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 	if (WARN_ON_ONCE(!sband))
 		return 0;
 
-	pos = buffer;
-
 	num_rates = 0;
 	for (i = 0; i < sband->n_bitrates; i++) {
 		if ((BIT(i) & rate_mask) == 0)
@@ -1102,6 +1132,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 
 	supp_rates_len = min_t(int, num_rates, 8);
 
+	if (end - pos < 2 + supp_rates_len)
+		goto out_err;
 	*pos++ = WLAN_EID_SUPP_RATES;
 	*pos++ = supp_rates_len;
 	memcpy(pos, rates, supp_rates_len);
@@ -1118,6 +1150,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 					     before_extrates,
 					     ARRAY_SIZE(before_extrates),
 					     offset);
+		if (end - pos < noffset - offset)
+			goto out_err;
 		memcpy(pos, ie + offset, noffset - offset);
 		pos += noffset - offset;
 		offset = noffset;
@@ -1125,6 +1159,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 
 	ext_rates_len = num_rates - supp_rates_len;
 	if (ext_rates_len > 0) {
+		if (end - pos < 2 + ext_rates_len)
+			goto out_err;
 		*pos++ = WLAN_EID_EXT_SUPP_RATES;
 		*pos++ = ext_rates_len;
 		memcpy(pos, rates + supp_rates_len, ext_rates_len);
@@ -1132,6 +1168,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 	}
 
 	if (channel && sband->band == IEEE80211_BAND_2GHZ) {
+		if (end - pos < 3)
+			goto out_err;
 		*pos++ = WLAN_EID_DS_PARAMS;
 		*pos++ = 1;
 		*pos++ = channel;
@@ -1150,14 +1188,19 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 		noffset = ieee80211_ie_split(ie, ie_len,
 					     before_ht, ARRAY_SIZE(before_ht),
 					     offset);
+		if (end - pos < noffset - offset)
+			goto out_err;
 		memcpy(pos, ie + offset, noffset - offset);
 		pos += noffset - offset;
 		offset = noffset;
 	}
 
-	if (sband->ht_cap.ht_supported)
+	if (sband->ht_cap.ht_supported) {
+		if (end - pos < 2 + sizeof(struct ieee80211_ht_cap))
+			goto out_err;
 		pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap,
 						sband->ht_cap.cap);
+	}
 
 	/*
 	 * If adding more here, adjust code in main.c
@@ -1167,15 +1210,23 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 	/* add any remaining custom IEs */
 	if (ie && ie_len) {
 		noffset = ie_len;
+		if (end - pos < noffset - offset)
+			goto out_err;
 		memcpy(pos, ie + offset, noffset - offset);
 		pos += noffset - offset;
 	}
 
-	if (sband->vht_cap.vht_supported)
+	if (sband->vht_cap.vht_supported) {
+		if (end - pos < 2 + sizeof(struct ieee80211_vht_cap))
+			goto out_err;
 		pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap,
 						 sband->vht_cap.cap);
+	}
 
 	return pos - buffer;
+ out_err:
+	WARN_ONCE(1, "not enough space for preq IEs\n");
+	return pos - buffer;
 }
 
 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
@@ -1188,14 +1239,8 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
-	size_t buf_len;
-	u8 *buf;
 	u8 chan_no;
-
-	/* FIXME: come up with a proper value */
-	buf = kmalloc(200 + ie_len, GFP_KERNEL);
-	if (!buf)
-		return NULL;
+	int ies_len;
 
 	/*
 	 * Do not send DS Channel parameter for directed probe requests
@@ -1207,14 +1252,16 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
 	else
 		chan_no = ieee80211_frequency_to_channel(chan->center_freq);
 
-	buf_len = ieee80211_build_preq_ies(local, buf, ie, ie_len, chan->band,
-					   ratemask, chan_no);
-
 	skb = ieee80211_probereq_get(&local->hw, &sdata->vif,
-				     ssid, ssid_len,
-				     buf, buf_len);
+				     ssid, ssid_len, 100 + ie_len);
 	if (!skb)
-		goto out;
+		return NULL;
+
+	ies_len = ieee80211_build_preq_ies(local, skb_tail_pointer(skb),
+					   skb_tailroom(skb),
+					   ie, ie_len, chan->band,
+					   ratemask, chan_no);
+	skb_put(skb, ies_len);
 
 	if (dst) {
 		mgmt = (struct ieee80211_mgmt *) skb->data;
@@ -1224,9 +1271,6 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
 
 	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
 
- out:
-	kfree(buf);
-
 	return skb;
 }
 
@@ -1234,7 +1278,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 			      const u8 *ssid, size_t ssid_len,
 			      const u8 *ie, size_t ie_len,
 			      u32 ratemask, bool directed, bool no_cck,
-			      struct ieee80211_channel *channel)
+			      struct ieee80211_channel *channel, bool scan)
 {
 	struct sk_buff *skb;
 
@@ -1245,7 +1289,10 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 		if (no_cck)
 			IEEE80211_SKB_CB(skb)->flags |=
 				IEEE80211_TX_CTL_NO_CCK_RATE;
-		ieee80211_tx_skb(sdata, skb);
+		if (scan)
+			ieee80211_tx_skb_tid_band(sdata, skb, 7, channel->band);
+		else
+			ieee80211_tx_skb(sdata, skb);
 	}
 }
 
@@ -1308,6 +1355,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 {
 	struct ieee80211_hw *hw = &local->hw;
 	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_chanctx *ctx;
 	struct sta_info *sta;
 	int res, i;
 
@@ -1380,6 +1428,46 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 			res = drv_add_interface(local, sdata);
 	}
 
+	/* add channel contexts */
+	if (local->use_chanctx) {
+		mutex_lock(&local->chanctx_mtx);
+		list_for_each_entry(ctx, &local->chanctx_list, list)
+			WARN_ON(drv_add_chanctx(local, ctx));
+		mutex_unlock(&local->chanctx_mtx);
+	}
+
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		struct ieee80211_chanctx_conf *ctx_conf;
+
+		if (!ieee80211_sdata_running(sdata))
+			continue;
+
+		mutex_lock(&local->chanctx_mtx);
+		ctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
+				lockdep_is_held(&local->chanctx_mtx));
+		if (ctx_conf) {
+			ctx = container_of(ctx_conf, struct ieee80211_chanctx,
+					   conf);
+			drv_assign_vif_chanctx(local, sdata, ctx);
+		}
+		mutex_unlock(&local->chanctx_mtx);
+	}
+
+	sdata = rtnl_dereference(local->monitor_sdata);
+	if (sdata && local->use_chanctx && ieee80211_sdata_running(sdata)) {
+		struct ieee80211_chanctx_conf *ctx_conf;
+
+		mutex_lock(&local->chanctx_mtx);
+		ctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
+				lockdep_is_held(&local->chanctx_mtx));
+		if (ctx_conf) {
+			ctx = container_of(ctx_conf, struct ieee80211_chanctx,
+					   conf);
+			drv_assign_vif_chanctx(local, sdata, ctx);
+		}
+		mutex_unlock(&local->chanctx_mtx);
+	}
+
 	/* add STAs back */
 	mutex_lock(&local->sta_mtx);
 	list_for_each_entry(sta, &local->sta_list, list) {
@@ -1435,7 +1523,8 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 			  BSS_CHANGED_BSSID |
 			  BSS_CHANGED_CQM |
 			  BSS_CHANGED_QOS |
-			  BSS_CHANGED_IDLE;
+			  BSS_CHANGED_IDLE |
+			  BSS_CHANGED_TXPOWER;
 
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_STATION:
@@ -1450,11 +1539,15 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 			changed |= BSS_CHANGED_IBSS;
 			/* fall through */
 		case NL80211_IFTYPE_AP:
-			changed |= BSS_CHANGED_SSID;
+			changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS;
 
-			if (sdata->vif.type == NL80211_IFTYPE_AP)
+			if (sdata->vif.type == NL80211_IFTYPE_AP) {
 				changed |= BSS_CHANGED_AP_PROBE_RESP;
 
+				if (rcu_access_pointer(sdata->u.ap.beacon))
+					drv_start_ap(local, sdata);
+			}
+
 			/* fall through */
 		case NL80211_IFTYPE_MESH_POINT:
 			changed |= BSS_CHANGED_BEACON |
@@ -1553,8 +1646,10 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 	 * If this is for hw restart things are still running.
 	 * We may want to change that later, however.
 	 */
-	if (!local->suspended)
+	if (!local->suspended) {
+		drv_restart_complete(local);
 		return 0;
+	}
 
 #ifdef CONFIG_PM
 	/* first set suspended false, then resuming */
@@ -1617,68 +1712,24 @@ void ieee80211_resume_disconnect(struct ieee80211_vif *vif)
 }
 EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect);
 
-static int check_mgd_smps(struct ieee80211_if_managed *ifmgd,
-			  enum ieee80211_smps_mode *smps_mode)
-{
-	if (ifmgd->associated) {
-		*smps_mode = ifmgd->ap_smps;
-
-		if (*smps_mode == IEEE80211_SMPS_AUTOMATIC) {
-			if (ifmgd->powersave)
-				*smps_mode = IEEE80211_SMPS_DYNAMIC;
-			else
-				*smps_mode = IEEE80211_SMPS_OFF;
-		}
-
-		return 1;
-	}
-
-	return 0;
-}
-
-void ieee80211_recalc_smps(struct ieee80211_local *local)
+void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata)
 {
-	struct ieee80211_sub_if_data *sdata;
-	enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_OFF;
-	int count = 0;
-
-	mutex_lock(&local->iflist_mtx);
-
-	/*
-	 * This function could be improved to handle multiple
-	 * interfaces better, but right now it makes any
-	 * non-station interfaces force SM PS to be turned
-	 * off. If there are multiple station interfaces it
-	 * could also use the best possible mode, e.g. if
-	 * one is in static and the other in dynamic then
-	 * dynamic is ok.
-	 */
-
-	list_for_each_entry(sdata, &local->interfaces, list) {
-		if (!ieee80211_sdata_running(sdata))
-			continue;
-		if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
-			continue;
-		if (sdata->vif.type != NL80211_IFTYPE_STATION)
-			goto set;
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_chanctx *chanctx;
 
-		count += check_mgd_smps(&sdata->u.mgd, &smps_mode);
+	mutex_lock(&local->chanctx_mtx);
 
-		if (count > 1) {
-			smps_mode = IEEE80211_SMPS_OFF;
-			break;
-		}
-	}
+	chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
+					lockdep_is_held(&local->chanctx_mtx));
 
-	if (smps_mode == local->smps_mode)
+	if (WARN_ON_ONCE(!chanctx_conf))
 		goto unlock;
 
- set:
-	local->smps_mode = smps_mode;
-	/* changed flag is auto-detected for this */
-	ieee80211_hw_config(local, 0);
+	chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
+	ieee80211_recalc_smps_chanctx(local, chanctx);
  unlock:
-	mutex_unlock(&local->iflist_mtx);
+	mutex_unlock(&local->chanctx_mtx);
 }
 
 static bool ieee80211_id_in_list(const u8 *ids, int n_ids, u8 id)
@@ -1818,8 +1869,8 @@ u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
 	__le32 tmp;
 
 	*pos++ = WLAN_EID_VHT_CAPABILITY;
-	*pos++ = sizeof(struct ieee80211_vht_capabilities);
-	memset(pos, 0, sizeof(struct ieee80211_vht_capabilities));
+	*pos++ = sizeof(struct ieee80211_vht_cap);
+	memset(pos, 0, sizeof(struct ieee80211_vht_cap));
 
 	/* capability flags */
 	tmp = cpu_to_le32(cap);
@@ -1834,8 +1885,7 @@ u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
 }
 
 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
-			       struct ieee80211_channel *channel,
-			       enum nl80211_channel_type channel_type,
+			       const struct cfg80211_chan_def *chandef,
 			       u16 prot_mode)
 {
 	struct ieee80211_ht_operation *ht_oper;
@@ -1843,23 +1893,25 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
 	*pos++ = WLAN_EID_HT_OPERATION;
 	*pos++ = sizeof(struct ieee80211_ht_operation);
 	ht_oper = (struct ieee80211_ht_operation *)pos;
-	ht_oper->primary_chan =
-			ieee80211_frequency_to_channel(channel->center_freq);
-	switch (channel_type) {
-	case NL80211_CHAN_HT40MINUS:
-		ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
-		break;
-	case NL80211_CHAN_HT40PLUS:
-		ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+	ht_oper->primary_chan = ieee80211_frequency_to_channel(
+					chandef->chan->center_freq);
+	switch (chandef->width) {
+	case NL80211_CHAN_WIDTH_160:
+	case NL80211_CHAN_WIDTH_80P80:
+	case NL80211_CHAN_WIDTH_80:
+	case NL80211_CHAN_WIDTH_40:
+		if (chandef->center_freq1 > chandef->chan->center_freq)
+			ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+		else
+			ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
 		break;
-	case NL80211_CHAN_HT20:
 	default:
 		ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE;
 		break;
 	}
 	if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 &&
-	    channel_type != NL80211_CHAN_NO_HT &&
-	    channel_type != NL80211_CHAN_HT20)
+	    chandef->width != NL80211_CHAN_WIDTH_20_NOHT &&
+	    chandef->width != NL80211_CHAN_WIDTH_20)
 		ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
 
 	ht_oper->operation_mode = cpu_to_le16(prot_mode);
@@ -1873,13 +1925,17 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
 	return pos + sizeof(struct ieee80211_ht_operation);
 }
 
-enum nl80211_channel_type
-ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper)
+void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
+				  struct ieee80211_ht_operation *ht_oper,
+				  struct cfg80211_chan_def *chandef)
 {
 	enum nl80211_channel_type channel_type;
 
-	if (!ht_oper)
-		return NL80211_CHAN_NO_HT;
+	if (!ht_oper) {
+		cfg80211_chandef_create(chandef, control_chan,
+					NL80211_CHAN_NO_HT);
+		return;
+	}
 
 	switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
 	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
@@ -1895,7 +1951,7 @@ ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper)
 		channel_type = NL80211_CHAN_NO_HT;
 	}
 
-	return channel_type;
+	cfg80211_chandef_create(chandef, control_chan, channel_type);
 }
 
 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
@@ -1977,3 +2033,84 @@ int ieee80211_ave_rssi(struct ieee80211_vif *vif)
 	return ifmgd->ave_beacon_signal;
 }
 EXPORT_SYMBOL_GPL(ieee80211_ave_rssi);
+
+u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs)
+{
+	if (!mcs)
+		return 1;
+
+	/* TODO: consider rx_highest */
+
+	if (mcs->rx_mask[3])
+		return 4;
+	if (mcs->rx_mask[2])
+		return 3;
+	if (mcs->rx_mask[1])
+		return 2;
+	return 1;
+}
+
+/**
+ * ieee80211_calculate_rx_timestamp - calculate timestamp in frame
+ * @local: mac80211 hw info struct
+ * @status: RX status
+ * @mpdu_len: total MPDU length (including FCS)
+ * @mpdu_offset: offset into MPDU to calculate timestamp at
+ *
+ * This function calculates the RX timestamp at the given MPDU offset, taking
+ * into account what the RX timestamp was. An offset of 0 will just normalize
+ * the timestamp to TSF at beginning of MPDU reception.
+ */
+u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
+				     struct ieee80211_rx_status *status,
+				     unsigned int mpdu_len,
+				     unsigned int mpdu_offset)
+{
+	u64 ts = status->mactime;
+	struct rate_info ri;
+	u16 rate;
+
+	if (WARN_ON(!ieee80211_have_rx_timestamp(status)))
+		return 0;
+
+	memset(&ri, 0, sizeof(ri));
+
+	/* Fill cfg80211 rate info */
+	if (status->flag & RX_FLAG_HT) {
+		ri.mcs = status->rate_idx;
+		ri.flags |= RATE_INFO_FLAGS_MCS;
+		if (status->flag & RX_FLAG_40MHZ)
+			ri.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
+		if (status->flag & RX_FLAG_SHORT_GI)
+			ri.flags |= RATE_INFO_FLAGS_SHORT_GI;
+	} else if (status->flag & RX_FLAG_VHT) {
+		ri.flags |= RATE_INFO_FLAGS_VHT_MCS;
+		ri.mcs = status->rate_idx;
+		ri.nss = status->vht_nss;
+		if (status->flag & RX_FLAG_40MHZ)
+			ri.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
+		if (status->flag & RX_FLAG_80MHZ)
+			ri.flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
+		if (status->flag & RX_FLAG_80P80MHZ)
+			ri.flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
+		if (status->flag & RX_FLAG_160MHZ)
+			ri.flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
+		if (status->flag & RX_FLAG_SHORT_GI)
+			ri.flags |= RATE_INFO_FLAGS_SHORT_GI;
+	} else {
+		struct ieee80211_supported_band *sband;
+
+		sband = local->hw.wiphy->bands[status->band];
+		ri.legacy = sband->bitrates[status->rate_idx].bitrate;
+	}
+
+	rate = cfg80211_calculate_bitrate(&ri);
+
+	/* rewind from end of MPDU */
+	if (status->flag & RX_FLAG_MACTIME_END)
+		ts -= mpdu_len * 8 * 10 / rate;
+
+	ts += mpdu_offset * 8 * 10 / rate;
+
+	return ts;
+}
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
new file mode 100644
index 0000000..f311388
--- /dev/null
+++ b/net/mac80211/vht.c
@@ -0,0 +1,35 @@
+/*
+ * VHT handling
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/ieee80211.h>
+#include <linux/export.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+
+
+void ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
+					 struct ieee80211_supported_band *sband,
+					 struct ieee80211_vht_cap *vht_cap_ie,
+					 struct ieee80211_sta_vht_cap *vht_cap)
+{
+	if (WARN_ON_ONCE(!vht_cap))
+		return;
+
+	memset(vht_cap, 0, sizeof(*vht_cap));
+
+	if (!vht_cap_ie || !sband->vht_cap.vht_supported)
+		return;
+
+	vht_cap->vht_supported = true;
+
+	vht_cap->cap = le32_to_cpu(vht_cap_ie->vht_cap_info);
+
+	/* Copy peer MCS info, the driver might need them. */
+	memcpy(&vht_cap->vht_mcs, &vht_cap_ie->supp_mcs,
+	       sizeof(struct ieee80211_vht_mcs_info));
+}
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index cea06e9..906f00c 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -160,31 +160,37 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
 	return ieee80211_downgrade_queue(sdata, skb);
 }
 
+/**
+ * ieee80211_set_qos_hdr - Fill in the QoS header if there is one.
+ *
+ * @sdata: local subif
+ * @skb: packet to be updated
+ */
 void ieee80211_set_qos_hdr(struct ieee80211_sub_if_data *sdata,
 			   struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr = (void *)skb->data;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	u8 *p;
+	u8 ack_policy, tid;
 
-	/* Fill in the QoS header if there is one. */
-	if (ieee80211_is_data_qos(hdr->frame_control)) {
-		u8 *p = ieee80211_get_qos_ctl(hdr);
-		u8 ack_policy, tid;
-
-		tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
+	if (!ieee80211_is_data_qos(hdr->frame_control))
+		return;
 
-		/* preserve EOSP bit */
-		ack_policy = *p & IEEE80211_QOS_CTL_EOSP;
+	p = ieee80211_get_qos_ctl(hdr);
+	tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
 
-		if (is_multicast_ether_addr(hdr->addr1) ||
-		    sdata->noack_map & BIT(tid)) {
-			ack_policy |= IEEE80211_QOS_CTL_ACK_POLICY_NOACK;
-			info->flags |= IEEE80211_TX_CTL_NO_ACK;
-		}
+	/* preserve EOSP bit */
+	ack_policy = *p & IEEE80211_QOS_CTL_EOSP;
 
-		/* qos header is 2 bytes */
-		*p++ = ack_policy | tid;
-		*p = ieee80211_vif_is_mesh(&sdata->vif) ?
-			(IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT >> 8) : 0;
+	if (is_multicast_ether_addr(hdr->addr1) ||
+	    sdata->noack_map & BIT(tid)) {
+		ack_policy |= IEEE80211_QOS_CTL_ACK_POLICY_NOACK;
+		info->flags |= IEEE80211_TX_CTL_NO_ACK;
 	}
+
+	/* qos header is 2 bytes */
+	*p++ = ack_policy | tid;
+	*p = ieee80211_vif_is_mesh(&sdata->vif) ?
+		(IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT >> 8) : 0;
 }
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 8bd2f5c..c175ee8 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -104,7 +104,7 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx)
 	 */
 	if (status->flag & (RX_FLAG_MMIC_STRIPPED | RX_FLAG_IV_STRIPPED)) {
 		if (status->flag & RX_FLAG_MMIC_ERROR)
-			goto mic_fail;
+			goto mic_fail_no_key;
 
 		if (!(status->flag & RX_FLAG_IV_STRIPPED) && rx->key &&
 		    rx->key->conf.cipher == WLAN_CIPHER_SUITE_TKIP)
@@ -161,6 +161,9 @@ update_iv:
 	return RX_CONTINUE;
 
 mic_fail:
+	rx->key->u.tkip.mic_failures++;
+
+mic_fail_no_key:
 	/*
 	 * In some cases the key can be unset - e.g. a multicast packet, in
 	 * a driver that supports HW encryption. Send up the key idx only if
diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c
index 1a4df39..4e09d07 100644
--- a/net/mac802154/tx.c
+++ b/net/mac802154/tx.c
@@ -85,6 +85,7 @@ netdev_tx_t mac802154_tx(struct mac802154_priv *priv, struct sk_buff *skb,
 
 	if (!(priv->phy->channels_supported[page] & (1 << chan))) {
 		WARN_ON(1);
+		kfree_skb(skb);
 		return NETDEV_TX_OK;
 	}
 
@@ -98,13 +99,15 @@ netdev_tx_t mac802154_tx(struct mac802154_priv *priv, struct sk_buff *skb,
 	}
 
 	if (skb_cow_head(skb, priv->hw.extra_tx_headroom)) {
-		dev_kfree_skb(skb);
+		kfree_skb(skb);
 		return NETDEV_TX_OK;
 	}
 
 	work = kzalloc(sizeof(struct xmit_work), GFP_ATOMIC);
-	if (!work)
+	if (!work) {
+		kfree_skb(skb);
 		return NETDEV_TX_BUSY;
+	}
 
 	INIT_WORK(&work->work, mac802154_xmit_worker);
 	work->skb = skb;
diff --git a/net/mac802154/wpan.c b/net/mac802154/wpan.c
index f30f6d4..1191039 100644
--- a/net/mac802154/wpan.c
+++ b/net/mac802154/wpan.c
@@ -327,8 +327,10 @@ mac802154_wpan_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (chan == MAC802154_CHAN_NONE ||
 	    page >= WPAN_NUM_PAGES ||
-	    chan >= WPAN_NUM_CHANNELS)
+	    chan >= WPAN_NUM_CHANNELS) {
+		kfree_skb(skb);
 		return NETDEV_TX_OK;
+	}
 
 	skb->skb_iif = dev->ifindex;
 	dev->stats.tx_packets++;
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 68912dad..a9c488b6 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -295,8 +295,6 @@ void __init netfilter_init(void)
 		panic("cannot create netfilter proc entry");
 #endif
 
-	if (netfilter_queue_init() < 0)
-		panic("cannot initialize nf_queue");
 	if (netfilter_log_init() < 0)
 		panic("cannot initialize nf_log");
 }
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index 778465f..6d6d8f2 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -28,9 +28,10 @@ static LIST_HEAD(ip_set_type_list);		/* all registered set types */
 static DEFINE_MUTEX(ip_set_type_mutex);		/* protects ip_set_type_list */
 static DEFINE_RWLOCK(ip_set_ref_lock);		/* protects the set refs */
 
-static struct ip_set **ip_set_list;		/* all individual sets */
+static struct ip_set * __rcu *ip_set_list;	/* all individual sets */
 static ip_set_id_t ip_set_max = CONFIG_IP_SET_MAX; /* max number of sets */
 
+#define IP_SET_INC	64
 #define STREQ(a, b)	(strncmp(a, b, IPSET_MAXNAMELEN) == 0)
 
 static unsigned int max_sets;
@@ -42,6 +43,12 @@ MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
 MODULE_DESCRIPTION("core IP set support");
 MODULE_ALIAS_NFNL_SUBSYS(NFNL_SUBSYS_IPSET);
 
+/* When the nfnl mutex is held: */
+#define nfnl_dereference(p)		\
+	rcu_dereference_protected(p, 1)
+#define nfnl_set(id)			\
+	nfnl_dereference(ip_set_list)[id]
+
 /*
  * The set types are implemented in modules and registered set types
  * can be found in ip_set_type_list. Adding/deleting types is
@@ -321,19 +328,19 @@ EXPORT_SYMBOL_GPL(ip_set_get_ipaddr6);
  */
 
 static inline void
-__ip_set_get(ip_set_id_t index)
+__ip_set_get(struct ip_set *set)
 {
 	write_lock_bh(&ip_set_ref_lock);
-	ip_set_list[index]->ref++;
+	set->ref++;
 	write_unlock_bh(&ip_set_ref_lock);
 }
 
 static inline void
-__ip_set_put(ip_set_id_t index)
+__ip_set_put(struct ip_set *set)
 {
 	write_lock_bh(&ip_set_ref_lock);
-	BUG_ON(ip_set_list[index]->ref == 0);
-	ip_set_list[index]->ref--;
+	BUG_ON(set->ref == 0);
+	set->ref--;
 	write_unlock_bh(&ip_set_ref_lock);
 }
 
@@ -344,12 +351,25 @@ __ip_set_put(ip_set_id_t index)
  * so it can't be destroyed (or changed) under our foot.
  */
 
+static inline struct ip_set *
+ip_set_rcu_get(ip_set_id_t index)
+{
+	struct ip_set *set;
+
+	rcu_read_lock();
+	/* ip_set_list itself needs to be protected */
+	set = rcu_dereference(ip_set_list)[index];
+	rcu_read_unlock();
+
+	return set;
+}
+
 int
 ip_set_test(ip_set_id_t index, const struct sk_buff *skb,
 	    const struct xt_action_param *par,
 	    const struct ip_set_adt_opt *opt)
 {
-	struct ip_set *set = ip_set_list[index];
+	struct ip_set *set = ip_set_rcu_get(index);
 	int ret = 0;
 
 	BUG_ON(set == NULL);
@@ -388,7 +408,7 @@ ip_set_add(ip_set_id_t index, const struct sk_buff *skb,
 	   const struct xt_action_param *par,
 	   const struct ip_set_adt_opt *opt)
 {
-	struct ip_set *set = ip_set_list[index];
+	struct ip_set *set = ip_set_rcu_get(index);
 	int ret;
 
 	BUG_ON(set == NULL);
@@ -411,7 +431,7 @@ ip_set_del(ip_set_id_t index, const struct sk_buff *skb,
 	   const struct xt_action_param *par,
 	   const struct ip_set_adt_opt *opt)
 {
-	struct ip_set *set = ip_set_list[index];
+	struct ip_set *set = ip_set_rcu_get(index);
 	int ret = 0;
 
 	BUG_ON(set == NULL);
@@ -440,14 +460,17 @@ ip_set_get_byname(const char *name, struct ip_set **set)
 	ip_set_id_t i, index = IPSET_INVALID_ID;
 	struct ip_set *s;
 
+	rcu_read_lock();
 	for (i = 0; i < ip_set_max; i++) {
-		s = ip_set_list[i];
+		s = rcu_dereference(ip_set_list)[i];
 		if (s != NULL && STREQ(s->name, name)) {
-			__ip_set_get(i);
+			__ip_set_get(s);
 			index = i;
 			*set = s;
+			break;
 		}
 	}
+	rcu_read_unlock();
 
 	return index;
 }
@@ -462,8 +485,13 @@ EXPORT_SYMBOL_GPL(ip_set_get_byname);
 void
 ip_set_put_byindex(ip_set_id_t index)
 {
-	if (ip_set_list[index] != NULL)
-		__ip_set_put(index);
+	struct ip_set *set;
+
+	rcu_read_lock();
+	set = rcu_dereference(ip_set_list)[index];
+	if (set != NULL)
+		__ip_set_put(set);
+	rcu_read_unlock();
 }
 EXPORT_SYMBOL_GPL(ip_set_put_byindex);
 
@@ -477,7 +505,7 @@ EXPORT_SYMBOL_GPL(ip_set_put_byindex);
 const char *
 ip_set_name_byindex(ip_set_id_t index)
 {
-	const struct ip_set *set = ip_set_list[index];
+	const struct ip_set *set = ip_set_rcu_get(index);
 
 	BUG_ON(set == NULL);
 	BUG_ON(set->ref == 0);
@@ -501,11 +529,18 @@ EXPORT_SYMBOL_GPL(ip_set_name_byindex);
 ip_set_id_t
 ip_set_nfnl_get(const char *name)
 {
+	ip_set_id_t i, index = IPSET_INVALID_ID;
 	struct ip_set *s;
-	ip_set_id_t index;
 
 	nfnl_lock();
-	index = ip_set_get_byname(name, &s);
+	for (i = 0; i < ip_set_max; i++) {
+		s = nfnl_set(i);
+		if (s != NULL && STREQ(s->name, name)) {
+			__ip_set_get(s);
+			index = i;
+			break;
+		}
+	}
 	nfnl_unlock();
 
 	return index;
@@ -521,12 +556,15 @@ EXPORT_SYMBOL_GPL(ip_set_nfnl_get);
 ip_set_id_t
 ip_set_nfnl_get_byindex(ip_set_id_t index)
 {
+	struct ip_set *set;
+
 	if (index > ip_set_max)
 		return IPSET_INVALID_ID;
 
 	nfnl_lock();
-	if (ip_set_list[index])
-		__ip_set_get(index);
+	set = nfnl_set(index);
+	if (set)
+		__ip_set_get(set);
 	else
 		index = IPSET_INVALID_ID;
 	nfnl_unlock();
@@ -545,8 +583,11 @@ EXPORT_SYMBOL_GPL(ip_set_nfnl_get_byindex);
 void
 ip_set_nfnl_put(ip_set_id_t index)
 {
+	struct ip_set *set;
 	nfnl_lock();
-	ip_set_put_byindex(index);
+	set = nfnl_set(index);
+	if (set != NULL)
+		__ip_set_put(set);
 	nfnl_unlock();
 }
 EXPORT_SYMBOL_GPL(ip_set_nfnl_put);
@@ -603,41 +644,46 @@ static const struct nla_policy ip_set_create_policy[IPSET_ATTR_CMD_MAX + 1] = {
 	[IPSET_ATTR_DATA]	= { .type = NLA_NESTED },
 };
 
-static ip_set_id_t
-find_set_id(const char *name)
+static struct ip_set *
+find_set_and_id(const char *name, ip_set_id_t *id)
 {
-	ip_set_id_t i, index = IPSET_INVALID_ID;
-	const struct ip_set *set;
+	struct ip_set *set = NULL;
+	ip_set_id_t i;
 
-	for (i = 0; index == IPSET_INVALID_ID && i < ip_set_max; i++) {
-		set = ip_set_list[i];
-		if (set != NULL && STREQ(set->name, name))
-			index = i;
+	*id = IPSET_INVALID_ID;
+	for (i = 0; i < ip_set_max; i++) {
+		set = nfnl_set(i);
+		if (set != NULL && STREQ(set->name, name)) {
+			*id = i;
+			break;
+		}
 	}
-	return index;
+	return (*id == IPSET_INVALID_ID ? NULL : set);
 }
 
 static inline struct ip_set *
 find_set(const char *name)
 {
-	ip_set_id_t index = find_set_id(name);
+	ip_set_id_t id;
 
-	return index == IPSET_INVALID_ID ? NULL : ip_set_list[index];
+	return find_set_and_id(name, &id);
 }
 
 static int
 find_free_id(const char *name, ip_set_id_t *index, struct ip_set **set)
 {
+	struct ip_set *s;
 	ip_set_id_t i;
 
 	*index = IPSET_INVALID_ID;
 	for (i = 0;  i < ip_set_max; i++) {
-		if (ip_set_list[i] == NULL) {
+		s = nfnl_set(i);
+		if (s == NULL) {
 			if (*index == IPSET_INVALID_ID)
 				*index = i;
-		} else if (STREQ(name, ip_set_list[i]->name)) {
+		} else if (STREQ(name, s->name)) {
 			/* Name clash */
-			*set = ip_set_list[i];
+			*set = s;
 			return -EEXIST;
 		}
 	}
@@ -730,10 +776,9 @@ ip_set_create(struct sock *ctnl, struct sk_buff *skb,
 	 * and check clashing.
 	 */
 	ret = find_free_id(set->name, &index, &clash);
-	if (ret != 0) {
+	if (ret == -EEXIST) {
 		/* If this is the same set and requested, ignore error */
-		if (ret == -EEXIST &&
-		    (flags & IPSET_FLAG_EXIST) &&
+		if ((flags & IPSET_FLAG_EXIST) &&
 		    STREQ(set->type->name, clash->type->name) &&
 		    set->type->family == clash->type->family &&
 		    set->type->revision_min == clash->type->revision_min &&
@@ -741,13 +786,36 @@ ip_set_create(struct sock *ctnl, struct sk_buff *skb,
 		    set->variant->same_set(set, clash))
 			ret = 0;
 		goto cleanup;
-	}
+	} else if (ret == -IPSET_ERR_MAX_SETS) {
+		struct ip_set **list, **tmp;
+		ip_set_id_t i = ip_set_max + IP_SET_INC;
+
+		if (i < ip_set_max || i == IPSET_INVALID_ID)
+			/* Wraparound */
+			goto cleanup;
+
+		list = kzalloc(sizeof(struct ip_set *) * i, GFP_KERNEL);
+		if (!list)
+			goto cleanup;
+		/* nfnl mutex is held, both lists are valid */
+		tmp = nfnl_dereference(ip_set_list);
+		memcpy(list, tmp, sizeof(struct ip_set *) * ip_set_max);
+		rcu_assign_pointer(ip_set_list, list);
+		/* Make sure all current packets have passed through */
+		synchronize_net();
+		/* Use new list */
+		index = ip_set_max;
+		ip_set_max = i;
+		kfree(tmp);
+		ret = 0;
+	} else if (ret)
+		goto cleanup;
 
 	/*
 	 * Finally! Add our shiny new set to the list, and be done.
 	 */
 	pr_debug("create: '%s' created with index %u!\n", set->name, index);
-	ip_set_list[index] = set;
+	nfnl_set(index) = set;
 
 	return ret;
 
@@ -772,10 +840,10 @@ ip_set_setname_policy[IPSET_ATTR_CMD_MAX + 1] = {
 static void
 ip_set_destroy_set(ip_set_id_t index)
 {
-	struct ip_set *set = ip_set_list[index];
+	struct ip_set *set = nfnl_set(index);
 
 	pr_debug("set: %s\n",  set->name);
-	ip_set_list[index] = NULL;
+	nfnl_set(index) = NULL;
 
 	/* Must call it without holding any lock */
 	set->variant->destroy(set);
@@ -788,6 +856,7 @@ ip_set_destroy(struct sock *ctnl, struct sk_buff *skb,
 	       const struct nlmsghdr *nlh,
 	       const struct nlattr * const attr[])
 {
+	struct ip_set *s;
 	ip_set_id_t i;
 	int ret = 0;
 
@@ -807,22 +876,24 @@ ip_set_destroy(struct sock *ctnl, struct sk_buff *skb,
 	read_lock_bh(&ip_set_ref_lock);
 	if (!attr[IPSET_ATTR_SETNAME]) {
 		for (i = 0; i < ip_set_max; i++) {
-			if (ip_set_list[i] != NULL && ip_set_list[i]->ref) {
+			s = nfnl_set(i);
+			if (s != NULL && s->ref) {
 				ret = -IPSET_ERR_BUSY;
 				goto out;
 			}
 		}
 		read_unlock_bh(&ip_set_ref_lock);
 		for (i = 0; i < ip_set_max; i++) {
-			if (ip_set_list[i] != NULL)
+			s = nfnl_set(i);
+			if (s != NULL)
 				ip_set_destroy_set(i);
 		}
 	} else {
-		i = find_set_id(nla_data(attr[IPSET_ATTR_SETNAME]));
-		if (i == IPSET_INVALID_ID) {
+		s = find_set_and_id(nla_data(attr[IPSET_ATTR_SETNAME]), &i);
+		if (s == NULL) {
 			ret = -ENOENT;
 			goto out;
-		} else if (ip_set_list[i]->ref) {
+		} else if (s->ref) {
 			ret = -IPSET_ERR_BUSY;
 			goto out;
 		}
@@ -853,21 +924,24 @@ ip_set_flush(struct sock *ctnl, struct sk_buff *skb,
 	     const struct nlmsghdr *nlh,
 	     const struct nlattr * const attr[])
 {
+	struct ip_set *s;
 	ip_set_id_t i;
 
 	if (unlikely(protocol_failed(attr)))
 		return -IPSET_ERR_PROTOCOL;
 
 	if (!attr[IPSET_ATTR_SETNAME]) {
-		for (i = 0; i < ip_set_max; i++)
-			if (ip_set_list[i] != NULL)
-				ip_set_flush_set(ip_set_list[i]);
+		for (i = 0; i < ip_set_max; i++) {
+			s = nfnl_set(i);
+			if (s != NULL)
+				ip_set_flush_set(s);
+		}
 	} else {
-		i = find_set_id(nla_data(attr[IPSET_ATTR_SETNAME]));
-		if (i == IPSET_INVALID_ID)
+		s = find_set(nla_data(attr[IPSET_ATTR_SETNAME]));
+		if (s == NULL)
 			return -ENOENT;
 
-		ip_set_flush_set(ip_set_list[i]);
+		ip_set_flush_set(s);
 	}
 
 	return 0;
@@ -889,7 +963,7 @@ ip_set_rename(struct sock *ctnl, struct sk_buff *skb,
 	      const struct nlmsghdr *nlh,
 	      const struct nlattr * const attr[])
 {
-	struct ip_set *set;
+	struct ip_set *set, *s;
 	const char *name2;
 	ip_set_id_t i;
 	int ret = 0;
@@ -911,8 +985,8 @@ ip_set_rename(struct sock *ctnl, struct sk_buff *skb,
 
 	name2 = nla_data(attr[IPSET_ATTR_SETNAME2]);
 	for (i = 0; i < ip_set_max; i++) {
-		if (ip_set_list[i] != NULL &&
-		    STREQ(ip_set_list[i]->name, name2)) {
+		s = nfnl_set(i);
+		if (s != NULL && STREQ(s->name, name2)) {
 			ret = -IPSET_ERR_EXIST_SETNAME2;
 			goto out;
 		}
@@ -947,17 +1021,14 @@ ip_set_swap(struct sock *ctnl, struct sk_buff *skb,
 		     attr[IPSET_ATTR_SETNAME2] == NULL))
 		return -IPSET_ERR_PROTOCOL;
 
-	from_id = find_set_id(nla_data(attr[IPSET_ATTR_SETNAME]));
-	if (from_id == IPSET_INVALID_ID)
+	from = find_set_and_id(nla_data(attr[IPSET_ATTR_SETNAME]), &from_id);
+	if (from == NULL)
 		return -ENOENT;
 
-	to_id = find_set_id(nla_data(attr[IPSET_ATTR_SETNAME2]));
-	if (to_id == IPSET_INVALID_ID)
+	to = find_set_and_id(nla_data(attr[IPSET_ATTR_SETNAME2]), &to_id);
+	if (to == NULL)
 		return -IPSET_ERR_EXIST_SETNAME2;
 
-	from = ip_set_list[from_id];
-	to = ip_set_list[to_id];
-
 	/* Features must not change.
 	 * Not an artificial restriction anymore, as we must prevent
 	 * possible loops created by swapping in setlist type of sets. */
@@ -971,8 +1042,8 @@ ip_set_swap(struct sock *ctnl, struct sk_buff *skb,
 
 	write_lock_bh(&ip_set_ref_lock);
 	swap(from->ref, to->ref);
-	ip_set_list[from_id] = to;
-	ip_set_list[to_id] = from;
+	nfnl_set(from_id) = to;
+	nfnl_set(to_id) = from;
 	write_unlock_bh(&ip_set_ref_lock);
 
 	return 0;
@@ -992,7 +1063,7 @@ static int
 ip_set_dump_done(struct netlink_callback *cb)
 {
 	if (cb->args[2]) {
-		pr_debug("release set %s\n", ip_set_list[cb->args[1]]->name);
+		pr_debug("release set %s\n", nfnl_set(cb->args[1])->name);
 		ip_set_put_byindex((ip_set_id_t) cb->args[1]);
 	}
 	return 0;
@@ -1030,8 +1101,11 @@ dump_init(struct netlink_callback *cb)
 	 */
 
 	if (cda[IPSET_ATTR_SETNAME]) {
-		index = find_set_id(nla_data(cda[IPSET_ATTR_SETNAME]));
-		if (index == IPSET_INVALID_ID)
+		struct ip_set *set;
+
+		set = find_set_and_id(nla_data(cda[IPSET_ATTR_SETNAME]),
+				      &index);
+		if (set == NULL)
 			return -ENOENT;
 
 		dump_type = DUMP_ONE;
@@ -1081,7 +1155,7 @@ dump_last:
 		 dump_type, dump_flags, cb->args[1]);
 	for (; cb->args[1] < max; cb->args[1]++) {
 		index = (ip_set_id_t) cb->args[1];
-		set = ip_set_list[index];
+		set = nfnl_set(index);
 		if (set == NULL) {
 			if (dump_type == DUMP_ONE) {
 				ret = -ENOENT;
@@ -1100,7 +1174,7 @@ dump_last:
 		if (!cb->args[2]) {
 			/* Start listing: make sure set won't be destroyed */
 			pr_debug("reference set\n");
-			__ip_set_get(index);
+			__ip_set_get(set);
 		}
 		nlh = start_msg(skb, NETLINK_CB(cb->skb).portid,
 				cb->nlh->nlmsg_seq, flags,
@@ -1159,7 +1233,7 @@ next_set:
 release_refcount:
 	/* If there was an error or set is done, release set */
 	if (ret || !cb->args[2]) {
-		pr_debug("release set %s\n", ip_set_list[index]->name);
+		pr_debug("release set %s\n", nfnl_set(index)->name);
 		ip_set_put_byindex(index);
 		cb->args[2] = 0;
 	}
@@ -1409,17 +1483,15 @@ ip_set_header(struct sock *ctnl, struct sk_buff *skb,
 	const struct ip_set *set;
 	struct sk_buff *skb2;
 	struct nlmsghdr *nlh2;
-	ip_set_id_t index;
 	int ret = 0;
 
 	if (unlikely(protocol_failed(attr) ||
 		     attr[IPSET_ATTR_SETNAME] == NULL))
 		return -IPSET_ERR_PROTOCOL;
 
-	index = find_set_id(nla_data(attr[IPSET_ATTR_SETNAME]));
-	if (index == IPSET_INVALID_ID)
+	set = find_set(nla_data(attr[IPSET_ATTR_SETNAME]));
+	if (set == NULL)
 		return -ENOENT;
-	set = ip_set_list[index];
 
 	skb2 = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (skb2 == NULL)
@@ -1643,7 +1715,7 @@ ip_set_sockfn_get(struct sock *sk, int optval, void __user *user, int *len)
 	void *data;
 	int copylen = *len, ret = 0;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 	if (optval != SO_IP_SET)
 		return -EBADF;
@@ -1684,6 +1756,7 @@ ip_set_sockfn_get(struct sock *sk, int optval, void __user *user, int *len)
 	}
 	case IP_SET_OP_GET_BYNAME: {
 		struct ip_set_req_get_set *req_get = data;
+		ip_set_id_t id;
 
 		if (*len != sizeof(struct ip_set_req_get_set)) {
 			ret = -EINVAL;
@@ -1691,12 +1764,14 @@ ip_set_sockfn_get(struct sock *sk, int optval, void __user *user, int *len)
 		}
 		req_get->set.name[IPSET_MAXNAMELEN - 1] = '\0';
 		nfnl_lock();
-		req_get->set.index = find_set_id(req_get->set.name);
+		find_set_and_id(req_get->set.name, &id);
+		req_get->set.index = id;
 		nfnl_unlock();
 		goto copy;
 	}
 	case IP_SET_OP_GET_BYINDEX: {
 		struct ip_set_req_get_set *req_get = data;
+		struct ip_set *set;
 
 		if (*len != sizeof(struct ip_set_req_get_set) ||
 		    req_get->set.index >= ip_set_max) {
@@ -1704,9 +1779,8 @@ ip_set_sockfn_get(struct sock *sk, int optval, void __user *user, int *len)
 			goto done;
 		}
 		nfnl_lock();
-		strncpy(req_get->set.name,
-			ip_set_list[req_get->set.index]
-				? ip_set_list[req_get->set.index]->name : "",
+		set = nfnl_set(req_get->set.index);
+		strncpy(req_get->set.name, set ? set->name : "",
 			IPSET_MAXNAMELEN);
 		nfnl_unlock();
 		goto copy;
@@ -1737,6 +1811,7 @@ static struct nf_sockopt_ops so_set __read_mostly = {
 static int __init
 ip_set_init(void)
 {
+	struct ip_set **list;
 	int ret;
 
 	if (max_sets)
@@ -1744,22 +1819,22 @@ ip_set_init(void)
 	if (ip_set_max >= IPSET_INVALID_ID)
 		ip_set_max = IPSET_INVALID_ID - 1;
 
-	ip_set_list = kzalloc(sizeof(struct ip_set *) * ip_set_max,
-			      GFP_KERNEL);
-	if (!ip_set_list)
+	list = kzalloc(sizeof(struct ip_set *) * ip_set_max, GFP_KERNEL);
+	if (!list)
 		return -ENOMEM;
 
+	rcu_assign_pointer(ip_set_list, list);
 	ret = nfnetlink_subsys_register(&ip_set_netlink_subsys);
 	if (ret != 0) {
 		pr_err("ip_set: cannot register with nfnetlink.\n");
-		kfree(ip_set_list);
+		kfree(list);
 		return ret;
 	}
 	ret = nf_register_sockopt(&so_set);
 	if (ret != 0) {
 		pr_err("SO_SET registry failed: %d\n", ret);
 		nfnetlink_subsys_unregister(&ip_set_netlink_subsys);
-		kfree(ip_set_list);
+		kfree(list);
 		return ret;
 	}
 
@@ -1770,10 +1845,12 @@ ip_set_init(void)
 static void __exit
 ip_set_fini(void)
 {
+	struct ip_set **list = rcu_dereference_protected(ip_set_list, 1);
+
 	/* There can't be any existing set */
 	nf_unregister_sockopt(&so_set);
 	nfnetlink_subsys_unregister(&ip_set_netlink_subsys);
-	kfree(ip_set_list);
+	kfree(list);
 	pr_debug("these are the famous last words\n");
 }
 
diff --git a/net/netfilter/ipvs/Kconfig b/net/netfilter/ipvs/Kconfig
index 8b2cffd..0c3b167 100644
--- a/net/netfilter/ipvs/Kconfig
+++ b/net/netfilter/ipvs/Kconfig
@@ -28,12 +28,11 @@ if IP_VS
 config	IP_VS_IPV6
 	bool "IPv6 support for IPVS"
 	depends on IPV6 = y || IP_VS = IPV6
+	select IP6_NF_IPTABLES
 	---help---
-	  Add IPv6 support to IPVS. This is incomplete and might be dangerous.
+	  Add IPv6 support to IPVS.
 
-	  See http://www.mindbasket.com/ipvs for more information.
-
-	  Say N if unsure.
+	  Say Y if unsure.
 
 config	IP_VS_DEBUG
 	bool "IP virtual server debugging"
diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index 1548df9..30e764a 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -308,13 +308,12 @@ struct ip_vs_conn *ip_vs_conn_in_get(const struct ip_vs_conn_param *p)
 static int
 ip_vs_conn_fill_param_proto(int af, const struct sk_buff *skb,
 			    const struct ip_vs_iphdr *iph,
-			    unsigned int proto_off, int inverse,
-			    struct ip_vs_conn_param *p)
+			    int inverse, struct ip_vs_conn_param *p)
 {
 	__be16 _ports[2], *pptr;
 	struct net *net = skb_net(skb);
 
-	pptr = skb_header_pointer(skb, proto_off, sizeof(_ports), _ports);
+	pptr = frag_safe_skb_hp(skb, iph->len, sizeof(_ports), _ports, iph);
 	if (pptr == NULL)
 		return 1;
 
@@ -329,12 +328,11 @@ ip_vs_conn_fill_param_proto(int af, const struct sk_buff *skb,
 
 struct ip_vs_conn *
 ip_vs_conn_in_get_proto(int af, const struct sk_buff *skb,
-			const struct ip_vs_iphdr *iph,
-			unsigned int proto_off, int inverse)
+			const struct ip_vs_iphdr *iph, int inverse)
 {
 	struct ip_vs_conn_param p;
 
-	if (ip_vs_conn_fill_param_proto(af, skb, iph, proto_off, inverse, &p))
+	if (ip_vs_conn_fill_param_proto(af, skb, iph, inverse, &p))
 		return NULL;
 
 	return ip_vs_conn_in_get(&p);
@@ -432,12 +430,11 @@ struct ip_vs_conn *ip_vs_conn_out_get(const struct ip_vs_conn_param *p)
 
 struct ip_vs_conn *
 ip_vs_conn_out_get_proto(int af, const struct sk_buff *skb,
-			 const struct ip_vs_iphdr *iph,
-			 unsigned int proto_off, int inverse)
+			 const struct ip_vs_iphdr *iph, int inverse)
 {
 	struct ip_vs_conn_param p;
 
-	if (ip_vs_conn_fill_param_proto(af, skb, iph, proto_off, inverse, &p))
+	if (ip_vs_conn_fill_param_proto(af, skb, iph, inverse, &p))
 		return NULL;
 
 	return ip_vs_conn_out_get(&p);
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 58918e2..47edf5a 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -222,11 +222,10 @@ ip_vs_conn_fill_param_persist(const struct ip_vs_service *svc,
  */
 static struct ip_vs_conn *
 ip_vs_sched_persist(struct ip_vs_service *svc,
-		    struct sk_buff *skb,
-		    __be16 src_port, __be16 dst_port, int *ignored)
+		    struct sk_buff *skb, __be16 src_port, __be16 dst_port,
+		    int *ignored, struct ip_vs_iphdr *iph)
 {
 	struct ip_vs_conn *cp = NULL;
-	struct ip_vs_iphdr iph;
 	struct ip_vs_dest *dest;
 	struct ip_vs_conn *ct;
 	__be16 dport = 0;		/* destination port to forward */
@@ -236,20 +235,18 @@ ip_vs_sched_persist(struct ip_vs_service *svc,
 	union nf_inet_addr snet;	/* source network of the client,
 					   after masking */
 
-	ip_vs_fill_iphdr(svc->af, skb_network_header(skb), &iph);
-
 	/* Mask saddr with the netmask to adjust template granularity */
 #ifdef CONFIG_IP_VS_IPV6
 	if (svc->af == AF_INET6)
-		ipv6_addr_prefix(&snet.in6, &iph.saddr.in6, svc->netmask);
+		ipv6_addr_prefix(&snet.in6, &iph->saddr.in6, svc->netmask);
 	else
 #endif
-		snet.ip = iph.saddr.ip & svc->netmask;
+		snet.ip = iph->saddr.ip & svc->netmask;
 
 	IP_VS_DBG_BUF(6, "p-schedule: src %s:%u dest %s:%u "
 		      "mnet %s\n",
-		      IP_VS_DBG_ADDR(svc->af, &iph.saddr), ntohs(src_port),
-		      IP_VS_DBG_ADDR(svc->af, &iph.daddr), ntohs(dst_port),
+		      IP_VS_DBG_ADDR(svc->af, &iph->saddr), ntohs(src_port),
+		      IP_VS_DBG_ADDR(svc->af, &iph->daddr), ntohs(dst_port),
 		      IP_VS_DBG_ADDR(svc->af, &snet));
 
 	/*
@@ -266,8 +263,8 @@ ip_vs_sched_persist(struct ip_vs_service *svc,
 	 * is created for other persistent services.
 	 */
 	{
-		int protocol = iph.protocol;
-		const union nf_inet_addr *vaddr = &iph.daddr;
+		int protocol = iph->protocol;
+		const union nf_inet_addr *vaddr = &iph->daddr;
 		__be16 vport = 0;
 
 		if (dst_port == svc->port) {
@@ -342,14 +339,14 @@ ip_vs_sched_persist(struct ip_vs_service *svc,
 		dport = dest->port;
 
 	flags = (svc->flags & IP_VS_SVC_F_ONEPACKET
-		 && iph.protocol == IPPROTO_UDP)?
+		 && iph->protocol == IPPROTO_UDP) ?
 		IP_VS_CONN_F_ONE_PACKET : 0;
 
 	/*
 	 *    Create a new connection according to the template
 	 */
-	ip_vs_conn_fill_param(svc->net, svc->af, iph.protocol, &iph.saddr,
-			      src_port, &iph.daddr, dst_port, &param);
+	ip_vs_conn_fill_param(svc->net, svc->af, iph->protocol, &iph->saddr,
+			      src_port, &iph->daddr, dst_port, &param);
 
 	cp = ip_vs_conn_new(&param, &dest->addr, dport, flags, dest, skb->mark);
 	if (cp == NULL) {
@@ -392,18 +389,20 @@ ip_vs_sched_persist(struct ip_vs_service *svc,
  */
 struct ip_vs_conn *
 ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb,
-	       struct ip_vs_proto_data *pd, int *ignored)
+	       struct ip_vs_proto_data *pd, int *ignored,
+	       struct ip_vs_iphdr *iph)
 {
 	struct ip_vs_protocol *pp = pd->pp;
 	struct ip_vs_conn *cp = NULL;
-	struct ip_vs_iphdr iph;
 	struct ip_vs_dest *dest;
 	__be16 _ports[2], *pptr;
 	unsigned int flags;
 
 	*ignored = 1;
-	ip_vs_fill_iphdr(svc->af, skb_network_header(skb), &iph);
-	pptr = skb_header_pointer(skb, iph.len, sizeof(_ports), _ports);
+	/*
+	 * IPv6 frags, only the first hit here.
+	 */
+	pptr = frag_safe_skb_hp(skb, iph->len, sizeof(_ports), _ports, iph);
 	if (pptr == NULL)
 		return NULL;
 
@@ -423,7 +422,7 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb,
 	 *    Do not schedule replies from local real server.
 	 */
 	if ((!skb->dev || skb->dev->flags & IFF_LOOPBACK) &&
-	    (cp = pp->conn_in_get(svc->af, skb, &iph, iph.len, 1))) {
+	    (cp = pp->conn_in_get(svc->af, skb, iph, 1))) {
 		IP_VS_DBG_PKT(12, svc->af, pp, skb, 0,
 			      "Not scheduling reply for existing connection");
 		__ip_vs_conn_put(cp);
@@ -434,7 +433,8 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb,
 	 *    Persistent service
 	 */
 	if (svc->flags & IP_VS_SVC_F_PERSISTENT)
-		return ip_vs_sched_persist(svc, skb, pptr[0], pptr[1], ignored);
+		return ip_vs_sched_persist(svc, skb, pptr[0], pptr[1], ignored,
+					   iph);
 
 	*ignored = 0;
 
@@ -456,7 +456,7 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb,
 	}
 
 	flags = (svc->flags & IP_VS_SVC_F_ONEPACKET
-		 && iph.protocol == IPPROTO_UDP)?
+		 && iph->protocol == IPPROTO_UDP) ?
 		IP_VS_CONN_F_ONE_PACKET : 0;
 
 	/*
@@ -465,9 +465,9 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb,
 	{
 		struct ip_vs_conn_param p;
 
-		ip_vs_conn_fill_param(svc->net, svc->af, iph.protocol,
-				      &iph.saddr, pptr[0], &iph.daddr, pptr[1],
-				      &p);
+		ip_vs_conn_fill_param(svc->net, svc->af, iph->protocol,
+				      &iph->saddr, pptr[0], &iph->daddr,
+				      pptr[1], &p);
 		cp = ip_vs_conn_new(&p, &dest->addr,
 				    dest->port ? dest->port : pptr[1],
 				    flags, dest, skb->mark);
@@ -496,19 +496,16 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb,
  *  no destination is available for a new connection.
  */
 int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
-		struct ip_vs_proto_data *pd)
+		struct ip_vs_proto_data *pd, struct ip_vs_iphdr *iph)
 {
 	__be16 _ports[2], *pptr;
-	struct ip_vs_iphdr iph;
 #ifdef CONFIG_SYSCTL
 	struct net *net;
 	struct netns_ipvs *ipvs;
 	int unicast;
 #endif
 
-	ip_vs_fill_iphdr(svc->af, skb_network_header(skb), &iph);
-
-	pptr = skb_header_pointer(skb, iph.len, sizeof(_ports), _ports);
+	pptr = frag_safe_skb_hp(skb, iph->len, sizeof(_ports), _ports, iph);
 	if (pptr == NULL) {
 		ip_vs_service_put(svc);
 		return NF_DROP;
@@ -519,10 +516,10 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
 
 #ifdef CONFIG_IP_VS_IPV6
 	if (svc->af == AF_INET6)
-		unicast = ipv6_addr_type(&iph.daddr.in6) & IPV6_ADDR_UNICAST;
+		unicast = ipv6_addr_type(&iph->daddr.in6) & IPV6_ADDR_UNICAST;
 	else
 #endif
-		unicast = (inet_addr_type(net, iph.daddr.ip) == RTN_UNICAST);
+		unicast = (inet_addr_type(net, iph->daddr.ip) == RTN_UNICAST);
 
 	/* if it is fwmark-based service, the cache_bypass sysctl is up
 	   and the destination is a non-local unicast, then create
@@ -532,7 +529,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
 		int ret;
 		struct ip_vs_conn *cp;
 		unsigned int flags = (svc->flags & IP_VS_SVC_F_ONEPACKET &&
-				      iph.protocol == IPPROTO_UDP)?
+				      iph->protocol == IPPROTO_UDP) ?
 				      IP_VS_CONN_F_ONE_PACKET : 0;
 		union nf_inet_addr daddr =  { .all = { 0, 0, 0, 0 } };
 
@@ -542,9 +539,9 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
 		IP_VS_DBG(6, "%s(): create a cache_bypass entry\n", __func__);
 		{
 			struct ip_vs_conn_param p;
-			ip_vs_conn_fill_param(svc->net, svc->af, iph.protocol,
-					      &iph.saddr, pptr[0],
-					      &iph.daddr, pptr[1], &p);
+			ip_vs_conn_fill_param(svc->net, svc->af, iph->protocol,
+					      &iph->saddr, pptr[0],
+					      &iph->daddr, pptr[1], &p);
 			cp = ip_vs_conn_new(&p, &daddr, 0,
 					    IP_VS_CONN_F_BYPASS | flags,
 					    NULL, skb->mark);
@@ -559,7 +556,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
 		ip_vs_set_state(cp, IP_VS_DIR_INPUT, skb, pd);
 
 		/* transmit the first SYN packet */
-		ret = cp->packet_xmit(skb, cp, pd->pp);
+		ret = cp->packet_xmit(skb, cp, pd->pp, iph);
 		/* do not touch skb anymore */
 
 		atomic_inc(&cp->in_pkts);
@@ -654,14 +651,6 @@ static inline int ip_vs_gather_frags(struct sk_buff *skb, u_int32_t user)
 	return err;
 }
 
-#ifdef CONFIG_IP_VS_IPV6
-static inline int ip_vs_gather_frags_v6(struct sk_buff *skb, u_int32_t user)
-{
-	/* TODO IPv6: Find out what to do here for IPv6 */
-	return 0;
-}
-#endif
-
 static int ip_vs_route_me_harder(int af, struct sk_buff *skb)
 {
 #ifdef CONFIG_IP_VS_IPV6
@@ -732,10 +721,19 @@ void ip_vs_nat_icmp_v6(struct sk_buff *skb, struct ip_vs_protocol *pp,
 		    struct ip_vs_conn *cp, int inout)
 {
 	struct ipv6hdr *iph	 = ipv6_hdr(skb);
-	unsigned int icmp_offset = sizeof(struct ipv6hdr);
-	struct icmp6hdr *icmph	 = (struct icmp6hdr *)(skb_network_header(skb) +
-						      icmp_offset);
-	struct ipv6hdr *ciph	 = (struct ipv6hdr *)(icmph + 1);
+	unsigned int icmp_offset = 0;
+	unsigned int offs	 = 0; /* header offset*/
+	int protocol;
+	struct icmp6hdr *icmph;
+	struct ipv6hdr *ciph;
+	unsigned short fragoffs;
+
+	ipv6_find_hdr(skb, &icmp_offset, IPPROTO_ICMPV6, &fragoffs, NULL);
+	icmph = (struct icmp6hdr *)(skb_network_header(skb) + icmp_offset);
+	offs = icmp_offset + sizeof(struct icmp6hdr);
+	ciph = (struct ipv6hdr *)(skb_network_header(skb) + offs);
+
+	protocol = ipv6_find_hdr(skb, &offs, -1, &fragoffs, NULL);
 
 	if (inout) {
 		iph->saddr = cp->vaddr.in6;
@@ -746,10 +744,13 @@ void ip_vs_nat_icmp_v6(struct sk_buff *skb, struct ip_vs_protocol *pp,
 	}
 
 	/* the TCP/UDP/SCTP port */
-	if (IPPROTO_TCP == ciph->nexthdr || IPPROTO_UDP == ciph->nexthdr ||
-	    IPPROTO_SCTP == ciph->nexthdr) {
-		__be16 *ports = (void *)ciph + sizeof(struct ipv6hdr);
+	if (!fragoffs && (IPPROTO_TCP == protocol || IPPROTO_UDP == protocol ||
+			  IPPROTO_SCTP == protocol)) {
+		__be16 *ports = (void *)(skb_network_header(skb) + offs);
 
+		IP_VS_DBG(11, "%s() changed port %d to %d\n", __func__,
+			      ntohs(inout ? ports[1] : ports[0]),
+			      ntohs(inout ? cp->vport : cp->dport));
 		if (inout)
 			ports[1] = cp->vport;
 		else
@@ -898,51 +899,35 @@ static int ip_vs_out_icmp(struct sk_buff *skb, int *related,
 	IP_VS_DBG_PKT(11, AF_INET, pp, skb, offset,
 		      "Checking outgoing ICMP for");
 
-	offset += cih->ihl * 4;
-
-	ip_vs_fill_iphdr(AF_INET, cih, &ciph);
+	ip_vs_fill_ip4hdr(cih, &ciph);
+	ciph.len += offset;
 	/* The embedded headers contain source and dest in reverse order */
-	cp = pp->conn_out_get(AF_INET, skb, &ciph, offset, 1);
+	cp = pp->conn_out_get(AF_INET, skb, &ciph, 1);
 	if (!cp)
 		return NF_ACCEPT;
 
 	snet.ip = iph->saddr;
 	return handle_response_icmp(AF_INET, skb, &snet, cih->protocol, cp,
-				    pp, offset, ihl);
+				    pp, ciph.len, ihl);
 }
 
 #ifdef CONFIG_IP_VS_IPV6
 static int ip_vs_out_icmp_v6(struct sk_buff *skb, int *related,
-			     unsigned int hooknum)
+			     unsigned int hooknum, struct ip_vs_iphdr *ipvsh)
 {
-	struct ipv6hdr *iph;
 	struct icmp6hdr	_icmph, *ic;
-	struct ipv6hdr	_ciph, *cih;	/* The ip header contained
-					   within the ICMP */
-	struct ip_vs_iphdr ciph;
+	struct ipv6hdr _ip6h, *ip6h; /* The ip header contained within ICMP */
+	struct ip_vs_iphdr ciph = {.flags = 0, .fragoffs = 0};/*Contained IP */
 	struct ip_vs_conn *cp;
 	struct ip_vs_protocol *pp;
-	unsigned int offset;
 	union nf_inet_addr snet;
+	unsigned int writable;
 
 	*related = 1;
-
-	/* reassemble IP fragments */
-	if (ipv6_hdr(skb)->nexthdr == IPPROTO_FRAGMENT) {
-		if (ip_vs_gather_frags_v6(skb, ip_vs_defrag_user(hooknum)))
-			return NF_STOLEN;
-	}
-
-	iph = ipv6_hdr(skb);
-	offset = sizeof(struct ipv6hdr);
-	ic = skb_header_pointer(skb, offset, sizeof(_icmph), &_icmph);
+	ic = frag_safe_skb_hp(skb, ipvsh->len, sizeof(_icmph), &_icmph, ipvsh);
 	if (ic == NULL)
 		return NF_DROP;
 
-	IP_VS_DBG(12, "Outgoing ICMPv6 (%d,%d) %pI6->%pI6\n",
-		  ic->icmp6_type, ntohs(icmpv6_id(ic)),
-		  &iph->saddr, &iph->daddr);
-
 	/*
 	 * Work through seeing if this is for us.
 	 * These checks are supposed to be in an order that means easy
@@ -950,42 +935,45 @@ static int ip_vs_out_icmp_v6(struct sk_buff *skb, int *related,
 	 * this means that some packets will manage to get a long way
 	 * down this stack and then be rejected, but that's life.
 	 */
-	if ((ic->icmp6_type != ICMPV6_DEST_UNREACH) &&
-	    (ic->icmp6_type != ICMPV6_PKT_TOOBIG) &&
-	    (ic->icmp6_type != ICMPV6_TIME_EXCEED)) {
+	if (ic->icmp6_type & ICMPV6_INFOMSG_MASK) {
 		*related = 0;
 		return NF_ACCEPT;
 	}
+	/* Fragment header that is before ICMP header tells us that:
+	 * it's not an error message since they can't be fragmented.
+	 */
+	if (ipvsh->flags & IP6_FH_F_FRAG)
+		return NF_DROP;
+
+	IP_VS_DBG(8, "Outgoing ICMPv6 (%d,%d) %pI6c->%pI6c\n",
+		  ic->icmp6_type, ntohs(icmpv6_id(ic)),
+		  &ipvsh->saddr, &ipvsh->daddr);
 
 	/* Now find the contained IP header */
-	offset += sizeof(_icmph);
-	cih = skb_header_pointer(skb, offset, sizeof(_ciph), &_ciph);
-	if (cih == NULL)
+	ciph.len = ipvsh->len + sizeof(_icmph);
+	ip6h = skb_header_pointer(skb, ciph.len, sizeof(_ip6h), &_ip6h);
+	if (ip6h == NULL)
 		return NF_ACCEPT; /* The packet looks wrong, ignore */
-
-	pp = ip_vs_proto_get(cih->nexthdr);
+	ciph.saddr.in6 = ip6h->saddr; /* conn_out_get() handles reverse order */
+	ciph.daddr.in6 = ip6h->daddr;
+	/* skip possible IPv6 exthdrs of contained IPv6 packet */
+	ciph.protocol = ipv6_find_hdr(skb, &ciph.len, -1, &ciph.fragoffs, NULL);
+	if (ciph.protocol < 0)
+		return NF_ACCEPT; /* Contained IPv6 hdr looks wrong, ignore */
+
+	pp = ip_vs_proto_get(ciph.protocol);
 	if (!pp)
 		return NF_ACCEPT;
 
-	/* Is the embedded protocol header present? */
-	/* TODO: we don't support fragmentation at the moment anyways */
-	if (unlikely(cih->nexthdr == IPPROTO_FRAGMENT && pp->dont_defrag))
-		return NF_ACCEPT;
-
-	IP_VS_DBG_PKT(11, AF_INET6, pp, skb, offset,
-		      "Checking outgoing ICMPv6 for");
-
-	offset += sizeof(struct ipv6hdr);
-
-	ip_vs_fill_iphdr(AF_INET6, cih, &ciph);
 	/* The embedded headers contain source and dest in reverse order */
-	cp = pp->conn_out_get(AF_INET6, skb, &ciph, offset, 1);
+	cp = pp->conn_out_get(AF_INET6, skb, &ciph, 1);
 	if (!cp)
 		return NF_ACCEPT;
 
-	snet.in6 = iph->saddr;
-	return handle_response_icmp(AF_INET6, skb, &snet, cih->nexthdr, cp,
-				    pp, offset, sizeof(struct ipv6hdr));
+	snet.in6 = ciph.saddr.in6;
+	writable = ciph.len;
+	return handle_response_icmp(AF_INET6, skb, &snet, ciph.protocol, cp,
+				    pp, writable, sizeof(struct ipv6hdr));
 }
 #endif
 
@@ -1018,17 +1006,17 @@ static inline int is_tcp_reset(const struct sk_buff *skb, int nh_len)
  */
 static unsigned int
 handle_response(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
-		struct ip_vs_conn *cp, int ihl)
+		struct ip_vs_conn *cp, struct ip_vs_iphdr *iph)
 {
 	struct ip_vs_protocol *pp = pd->pp;
 
 	IP_VS_DBG_PKT(11, af, pp, skb, 0, "Outgoing packet");
 
-	if (!skb_make_writable(skb, ihl))
+	if (!skb_make_writable(skb, iph->len))
 		goto drop;
 
 	/* mangle the packet */
-	if (pp->snat_handler && !pp->snat_handler(skb, pp, cp))
+	if (pp->snat_handler && !pp->snat_handler(skb, pp, cp, iph))
 		goto drop;
 
 #ifdef CONFIG_IP_VS_IPV6
@@ -1115,17 +1103,22 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb, int af)
 	if (!net_ipvs(net)->enable)
 		return NF_ACCEPT;
 
-	ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
+	ip_vs_fill_iph_skb(af, skb, &iph);
 #ifdef CONFIG_IP_VS_IPV6
 	if (af == AF_INET6) {
+		if (!iph.fragoffs && skb_nfct_reasm(skb)) {
+			struct sk_buff *reasm = skb_nfct_reasm(skb);
+			/* Save fw mark for coming frags */
+			reasm->ipvs_property = 1;
+			reasm->mark = skb->mark;
+		}
 		if (unlikely(iph.protocol == IPPROTO_ICMPV6)) {
 			int related;
 			int verdict = ip_vs_out_icmp_v6(skb, &related,
-							hooknum);
+							hooknum, &iph);
 
 			if (related)
 				return verdict;
-			ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
 		}
 	} else
 #endif
@@ -1135,7 +1128,6 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb, int af)
 
 			if (related)
 				return verdict;
-			ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
 		}
 
 	pd = ip_vs_proto_data_get(net, iph.protocol);
@@ -1145,39 +1137,31 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb, int af)
 
 	/* reassemble IP fragments */
 #ifdef CONFIG_IP_VS_IPV6
-	if (af == AF_INET6) {
-		if (ipv6_hdr(skb)->nexthdr == IPPROTO_FRAGMENT) {
-			if (ip_vs_gather_frags_v6(skb,
-						  ip_vs_defrag_user(hooknum)))
-				return NF_STOLEN;
-		}
-
-		ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
-	} else
+	if (af == AF_INET)
 #endif
 		if (unlikely(ip_is_fragment(ip_hdr(skb)) && !pp->dont_defrag)) {
 			if (ip_vs_gather_frags(skb,
 					       ip_vs_defrag_user(hooknum)))
 				return NF_STOLEN;
 
-			ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
+			ip_vs_fill_ip4hdr(skb_network_header(skb), &iph);
 		}
 
 	/*
 	 * Check if the packet belongs to an existing entry
 	 */
-	cp = pp->conn_out_get(af, skb, &iph, iph.len, 0);
+	cp = pp->conn_out_get(af, skb, &iph, 0);
 
 	if (likely(cp))
-		return handle_response(af, skb, pd, cp, iph.len);
+		return handle_response(af, skb, pd, cp, &iph);
 	if (sysctl_nat_icmp_send(net) &&
 	    (pp->protocol == IPPROTO_TCP ||
 	     pp->protocol == IPPROTO_UDP ||
 	     pp->protocol == IPPROTO_SCTP)) {
 		__be16 _ports[2], *pptr;
 
-		pptr = skb_header_pointer(skb, iph.len,
-					  sizeof(_ports), _ports);
+		pptr = frag_safe_skb_hp(skb, iph.len,
+					 sizeof(_ports), _ports, &iph);
 		if (pptr == NULL)
 			return NF_ACCEPT;	/* Not for me */
 		if (ip_vs_lookup_real_service(net, af, iph.protocol,
@@ -1375,13 +1359,13 @@ ip_vs_in_icmp(struct sk_buff *skb, int *related, unsigned int hooknum)
 		      "Checking incoming ICMP for");
 
 	offset2 = offset;
-	offset += cih->ihl * 4;
-
-	ip_vs_fill_iphdr(AF_INET, cih, &ciph);
+	ip_vs_fill_ip4hdr(cih, &ciph);
+	ciph.len += offset;
+	offset = ciph.len;
 	/* The embedded headers contain source and dest in reverse order.
 	 * For IPIP this is error for request, not for reply.
 	 */
-	cp = pp->conn_in_get(AF_INET, skb, &ciph, offset, ipip ? 0 : 1);
+	cp = pp->conn_in_get(AF_INET, skb, &ciph, ipip ? 0 : 1);
 	if (!cp)
 		return NF_ACCEPT;
 
@@ -1450,7 +1434,7 @@ ignore_ipip:
 	ip_vs_in_stats(cp, skb);
 	if (IPPROTO_TCP == cih->protocol || IPPROTO_UDP == cih->protocol)
 		offset += 2 * sizeof(__u16);
-	verdict = ip_vs_icmp_xmit(skb, cp, pp, offset, hooknum);
+	verdict = ip_vs_icmp_xmit(skb, cp, pp, offset, hooknum, &ciph);
 
 out:
 	__ip_vs_conn_put(cp);
@@ -1459,38 +1443,24 @@ out:
 }
 
 #ifdef CONFIG_IP_VS_IPV6
-static int
-ip_vs_in_icmp_v6(struct sk_buff *skb, int *related, unsigned int hooknum)
+static int ip_vs_in_icmp_v6(struct sk_buff *skb, int *related,
+			    unsigned int hooknum, struct ip_vs_iphdr *iph)
 {
 	struct net *net = NULL;
-	struct ipv6hdr *iph;
+	struct ipv6hdr _ip6h, *ip6h;
 	struct icmp6hdr	_icmph, *ic;
-	struct ipv6hdr	_ciph, *cih;	/* The ip header contained
-					   within the ICMP */
-	struct ip_vs_iphdr ciph;
+	struct ip_vs_iphdr ciph = {.flags = 0, .fragoffs = 0};/*Contained IP */
 	struct ip_vs_conn *cp;
 	struct ip_vs_protocol *pp;
 	struct ip_vs_proto_data *pd;
-	unsigned int offset, verdict;
+	unsigned int offs_ciph, writable, verdict;
 
 	*related = 1;
 
-	/* reassemble IP fragments */
-	if (ipv6_hdr(skb)->nexthdr == IPPROTO_FRAGMENT) {
-		if (ip_vs_gather_frags_v6(skb, ip_vs_defrag_user(hooknum)))
-			return NF_STOLEN;
-	}
-
-	iph = ipv6_hdr(skb);
-	offset = sizeof(struct ipv6hdr);
-	ic = skb_header_pointer(skb, offset, sizeof(_icmph), &_icmph);
+	ic = frag_safe_skb_hp(skb, iph->len, sizeof(_icmph), &_icmph, iph);
 	if (ic == NULL)
 		return NF_DROP;
 
-	IP_VS_DBG(12, "Incoming ICMPv6 (%d,%d) %pI6->%pI6\n",
-		  ic->icmp6_type, ntohs(icmpv6_id(ic)),
-		  &iph->saddr, &iph->daddr);
-
 	/*
 	 * Work through seeing if this is for us.
 	 * These checks are supposed to be in an order that means easy
@@ -1498,47 +1468,71 @@ ip_vs_in_icmp_v6(struct sk_buff *skb, int *related, unsigned int hooknum)
 	 * this means that some packets will manage to get a long way
 	 * down this stack and then be rejected, but that's life.
 	 */
-	if ((ic->icmp6_type != ICMPV6_DEST_UNREACH) &&
-	    (ic->icmp6_type != ICMPV6_PKT_TOOBIG) &&
-	    (ic->icmp6_type != ICMPV6_TIME_EXCEED)) {
+	if (ic->icmp6_type & ICMPV6_INFOMSG_MASK) {
 		*related = 0;
 		return NF_ACCEPT;
 	}
+	/* Fragment header that is before ICMP header tells us that:
+	 * it's not an error message since they can't be fragmented.
+	 */
+	if (iph->flags & IP6_FH_F_FRAG)
+		return NF_DROP;
+
+	IP_VS_DBG(8, "Incoming ICMPv6 (%d,%d) %pI6c->%pI6c\n",
+		  ic->icmp6_type, ntohs(icmpv6_id(ic)),
+		  &iph->saddr, &iph->daddr);
 
 	/* Now find the contained IP header */
-	offset += sizeof(_icmph);
-	cih = skb_header_pointer(skb, offset, sizeof(_ciph), &_ciph);
-	if (cih == NULL)
+	ciph.len = iph->len + sizeof(_icmph);
+	offs_ciph = ciph.len; /* Save ip header offset */
+	ip6h = skb_header_pointer(skb, ciph.len, sizeof(_ip6h), &_ip6h);
+	if (ip6h == NULL)
 		return NF_ACCEPT; /* The packet looks wrong, ignore */
+	ciph.saddr.in6 = ip6h->saddr; /* conn_in_get() handles reverse order */
+	ciph.daddr.in6 = ip6h->daddr;
+	/* skip possible IPv6 exthdrs of contained IPv6 packet */
+	ciph.protocol = ipv6_find_hdr(skb, &ciph.len, -1, &ciph.fragoffs, NULL);
+	if (ciph.protocol < 0)
+		return NF_ACCEPT; /* Contained IPv6 hdr looks wrong, ignore */
 
 	net = skb_net(skb);
-	pd = ip_vs_proto_data_get(net, cih->nexthdr);
+	pd = ip_vs_proto_data_get(net, ciph.protocol);
 	if (!pd)
 		return NF_ACCEPT;
 	pp = pd->pp;
 
-	/* Is the embedded protocol header present? */
-	/* TODO: we don't support fragmentation at the moment anyways */
-	if (unlikely(cih->nexthdr == IPPROTO_FRAGMENT && pp->dont_defrag))
+	/* Cannot handle fragmented embedded protocol */
+	if (ciph.fragoffs)
 		return NF_ACCEPT;
 
-	IP_VS_DBG_PKT(11, AF_INET6, pp, skb, offset,
+	IP_VS_DBG_PKT(11, AF_INET6, pp, skb, offs_ciph,
 		      "Checking incoming ICMPv6 for");
 
-	offset += sizeof(struct ipv6hdr);
+	/* The embedded headers contain source and dest in reverse order
+	 * if not from localhost
+	 */
+	cp = pp->conn_in_get(AF_INET6, skb, &ciph,
+			     (hooknum == NF_INET_LOCAL_OUT) ? 0 : 1);
 
-	ip_vs_fill_iphdr(AF_INET6, cih, &ciph);
-	/* The embedded headers contain source and dest in reverse order */
-	cp = pp->conn_in_get(AF_INET6, skb, &ciph, offset, 1);
 	if (!cp)
 		return NF_ACCEPT;
+	/* VS/TUN, VS/DR and LOCALNODE just let it go */
+	if ((hooknum == NF_INET_LOCAL_OUT) &&
+	    (IP_VS_FWD_METHOD(cp) != IP_VS_CONN_F_MASQ)) {
+		__ip_vs_conn_put(cp);
+		return NF_ACCEPT;
+	}
 
 	/* do the statistics and put it back */
 	ip_vs_in_stats(cp, skb);
-	if (IPPROTO_TCP == cih->nexthdr || IPPROTO_UDP == cih->nexthdr ||
-	    IPPROTO_SCTP == cih->nexthdr)
-		offset += 2 * sizeof(__u16);
-	verdict = ip_vs_icmp_xmit_v6(skb, cp, pp, offset, hooknum);
+
+	/* Need to mangle contained IPv6 header in ICMPv6 packet */
+	writable = ciph.len;
+	if (IPPROTO_TCP == ciph.protocol || IPPROTO_UDP == ciph.protocol ||
+	    IPPROTO_SCTP == ciph.protocol)
+		writable += 2 * sizeof(__u16); /* Also mangle ports */
+
+	verdict = ip_vs_icmp_xmit_v6(skb, cp, pp, writable, hooknum, &ciph);
 
 	__ip_vs_conn_put(cp);
 
@@ -1574,7 +1568,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
 	if (unlikely((skb->pkt_type != PACKET_HOST &&
 		      hooknum != NF_INET_LOCAL_OUT) ||
 		     !skb_dst(skb))) {
-		ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
+		ip_vs_fill_iph_skb(af, skb, &iph);
 		IP_VS_DBG_BUF(12, "packet type=%d proto=%d daddr=%s"
 			      " ignored in hook %u\n",
 			      skb->pkt_type, iph.protocol,
@@ -1586,7 +1580,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
 	if (!net_ipvs(net)->enable)
 		return NF_ACCEPT;
 
-	ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
+	ip_vs_fill_iph_skb(af, skb, &iph);
 
 	/* Bad... Do not break raw sockets */
 	if (unlikely(skb->sk != NULL && hooknum == NF_INET_LOCAL_OUT &&
@@ -1600,13 +1594,19 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
 
 #ifdef CONFIG_IP_VS_IPV6
 	if (af == AF_INET6) {
+		if (!iph.fragoffs && skb_nfct_reasm(skb)) {
+			struct sk_buff *reasm = skb_nfct_reasm(skb);
+			/* Save fw mark for coming frags. */
+			reasm->ipvs_property = 1;
+			reasm->mark = skb->mark;
+		}
 		if (unlikely(iph.protocol == IPPROTO_ICMPV6)) {
 			int related;
-			int verdict = ip_vs_in_icmp_v6(skb, &related, hooknum);
+			int verdict = ip_vs_in_icmp_v6(skb, &related, hooknum,
+						       &iph);
 
 			if (related)
 				return verdict;
-			ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
 		}
 	} else
 #endif
@@ -1616,7 +1616,6 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
 
 			if (related)
 				return verdict;
-			ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
 		}
 
 	/* Protocol supported? */
@@ -1627,12 +1626,15 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
 	/*
 	 * Check if the packet belongs to an existing connection entry
 	 */
-	cp = pp->conn_in_get(af, skb, &iph, iph.len, 0);
-
-	if (unlikely(!cp)) {
+	cp = pp->conn_in_get(af, skb, &iph, 0);
+	if (unlikely(!cp) && !iph.fragoffs) {
+		/* No (second) fragments need to enter here, as nf_defrag_ipv6
+		 * replayed fragment zero will already have created the cp
+		 */
 		int v;
 
-		if (!pp->conn_schedule(af, skb, pd, &v, &cp))
+		/* Schedule and create new connection entry into &cp */
+		if (!pp->conn_schedule(af, skb, pd, &v, &cp, &iph))
 			return v;
 	}
 
@@ -1640,6 +1642,14 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
 		/* sorry, all this trouble for a no-hit :) */
 		IP_VS_DBG_PKT(12, af, pp, skb, 0,
 			      "ip_vs_in: packet continues traversal as normal");
+		if (iph.fragoffs && !skb_nfct_reasm(skb)) {
+			/* Fragment that couldn't be mapped to a conn entry
+			 * and don't have any pointer to a reasm skb
+			 * is missing module nf_defrag_ipv6
+			 */
+			IP_VS_DBG_RL("Unhandled frag, load nf_defrag_ipv6\n");
+			IP_VS_DBG_PKT(7, af, pp, skb, 0, "unhandled fragment");
+		}
 		return NF_ACCEPT;
 	}
 
@@ -1662,7 +1672,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
 	ip_vs_in_stats(cp, skb);
 	ip_vs_set_state(cp, IP_VS_DIR_INPUT, skb, pd);
 	if (cp->packet_xmit)
-		ret = cp->packet_xmit(skb, cp, pp);
+		ret = cp->packet_xmit(skb, cp, pp, &iph);
 		/* do not touch skb anymore */
 	else {
 		IP_VS_DBG_RL("warning: packet_xmit is null");
@@ -1724,6 +1734,38 @@ ip_vs_local_request4(unsigned int hooknum, struct sk_buff *skb,
 #ifdef CONFIG_IP_VS_IPV6
 
 /*
+ * AF_INET6 fragment handling
+ * Copy info from first fragment, to the rest of them.
+ */
+static unsigned int
+ip_vs_preroute_frag6(unsigned int hooknum, struct sk_buff *skb,
+		     const struct net_device *in,
+		     const struct net_device *out,
+		     int (*okfn)(struct sk_buff *))
+{
+	struct sk_buff *reasm = skb_nfct_reasm(skb);
+	struct net *net;
+
+	/* Skip if not a "replay" from nf_ct_frag6_output or first fragment.
+	 * ipvs_property is set when checking first fragment
+	 * in ip_vs_in() and ip_vs_out().
+	 */
+	if (reasm)
+		IP_VS_DBG(2, "Fragment recv prop:%d\n", reasm->ipvs_property);
+	if (!reasm || !reasm->ipvs_property)
+		return NF_ACCEPT;
+
+	net = skb_net(skb);
+	if (!net_ipvs(net)->enable)
+		return NF_ACCEPT;
+
+	/* Copy stored fw mark, saved in ip_vs_{in,out} */
+	skb->mark = reasm->mark;
+
+	return NF_ACCEPT;
+}
+
+/*
  *	AF_INET6 handler in NF_INET_LOCAL_IN chain
  *	Schedule and forward packets from remote clients
  */
@@ -1793,8 +1835,10 @@ ip_vs_forward_icmp_v6(unsigned int hooknum, struct sk_buff *skb,
 {
 	int r;
 	struct net *net;
+	struct ip_vs_iphdr iphdr;
 
-	if (ipv6_hdr(skb)->nexthdr != IPPROTO_ICMPV6)
+	ip_vs_fill_iph_skb(AF_INET6, skb, &iphdr);
+	if (iphdr.protocol != IPPROTO_ICMPV6)
 		return NF_ACCEPT;
 
 	/* ipvs enabled in this netns ? */
@@ -1802,7 +1846,7 @@ ip_vs_forward_icmp_v6(unsigned int hooknum, struct sk_buff *skb,
 	if (!net_ipvs(net)->enable)
 		return NF_ACCEPT;
 
-	return ip_vs_in_icmp_v6(skb, &r, hooknum);
+	return ip_vs_in_icmp_v6(skb, &r, hooknum, &iphdr);
 }
 #endif
 
@@ -1860,6 +1904,14 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = {
 		.priority	= 100,
 	},
 #ifdef CONFIG_IP_VS_IPV6
+	/* After mangle & nat fetch 2:nd fragment and following */
+	{
+		.hook		= ip_vs_preroute_frag6,
+		.owner		= THIS_MODULE,
+		.pf		= NFPROTO_IPV6,
+		.hooknum	= NF_INET_PRE_ROUTING,
+		.priority	= NF_IP6_PRI_NAT_DST + 1,
+	},
 	/* After packet filtering, change source only for VS/NAT */
 	{
 		.hook		= ip_vs_reply6,
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index c4ee437..ec664cb 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -2339,7 +2339,7 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
 	struct ip_vs_dest_user_kern udest;
 	struct netns_ipvs *ipvs = net_ipvs(net);
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX)
@@ -2632,7 +2632,7 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 	struct netns_ipvs *ipvs = net_ipvs(net);
 
 	BUG_ON(!net);
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_GET_MAX)
@@ -3699,6 +3699,10 @@ static int __net_init ip_vs_control_net_init_sysctl(struct net *net)
 		tbl = kmemdup(vs_vars, sizeof(vs_vars), GFP_KERNEL);
 		if (tbl == NULL)
 			return -ENOMEM;
+
+		/* Don't export sysctls to unprivileged users */
+		if (net->user_ns != &init_user_ns)
+			tbl[0].procname = NULL;
 	} else
 		tbl = vs_vars;
 	/* Initialize sysctl defaults */
diff --git a/net/netfilter/ipvs/ip_vs_dh.c b/net/netfilter/ipvs/ip_vs_dh.c
index 8b7dca9..7f3b0cc 100644
--- a/net/netfilter/ipvs/ip_vs_dh.c
+++ b/net/netfilter/ipvs/ip_vs_dh.c
@@ -215,7 +215,7 @@ ip_vs_dh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
 	struct ip_vs_dh_bucket *tbl;
 	struct ip_vs_iphdr iph;
 
-	ip_vs_fill_iphdr(svc->af, skb_network_header(skb), &iph);
+	ip_vs_fill_iph_addr_only(svc->af, skb, &iph);
 
 	IP_VS_DBG(6, "%s(): Scheduling...\n", __func__);
 
diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index df646cc..fdd89b9 100644
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -479,7 +479,7 @@ ip_vs_lblc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
 	struct ip_vs_dest *dest = NULL;
 	struct ip_vs_lblc_entry *en;
 
-	ip_vs_fill_iphdr(svc->af, skb_network_header(skb), &iph);
+	ip_vs_fill_iph_addr_only(svc->af, skb, &iph);
 
 	IP_VS_DBG(6, "%s(): Scheduling...\n", __func__);
 
@@ -560,6 +560,11 @@ static int __net_init __ip_vs_lblc_init(struct net *net)
 						GFP_KERNEL);
 		if (ipvs->lblc_ctl_table == NULL)
 			return -ENOMEM;
+
+		/* Don't export sysctls to unprivileged users */
+		if (net->user_ns != &init_user_ns)
+			ipvs->lblc_ctl_table[0].procname = NULL;
+
 	} else
 		ipvs->lblc_ctl_table = vs_vars_table;
 	ipvs->sysctl_lblc_expiration = DEFAULT_EXPIRATION;
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index 570e31e..c03b6a3 100644
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -649,7 +649,7 @@ ip_vs_lblcr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
 	struct ip_vs_dest *dest = NULL;
 	struct ip_vs_lblcr_entry *en;
 
-	ip_vs_fill_iphdr(svc->af, skb_network_header(skb), &iph);
+	ip_vs_fill_iph_addr_only(svc->af, skb, &iph);
 
 	IP_VS_DBG(6, "%s(): Scheduling...\n", __func__);
 
@@ -754,6 +754,10 @@ static int __net_init __ip_vs_lblcr_init(struct net *net)
 						GFP_KERNEL);
 		if (ipvs->lblcr_ctl_table == NULL)
 			return -ENOMEM;
+
+		/* Don't export sysctls to unprivileged users */
+		if (net->user_ns != &init_user_ns)
+			ipvs->lblcr_ctl_table[0].procname = NULL;
 	} else
 		ipvs->lblcr_ctl_table = vs_vars_table;
 	ipvs->sysctl_lblcr_expiration = DEFAULT_EXPIRATION;
diff --git a/net/netfilter/ipvs/ip_vs_nfct.c b/net/netfilter/ipvs/ip_vs_nfct.c
index 022e77e..c8beafd 100644
--- a/net/netfilter/ipvs/ip_vs_nfct.c
+++ b/net/netfilter/ipvs/ip_vs_nfct.c
@@ -82,7 +82,7 @@ void
 ip_vs_update_conntrack(struct sk_buff *skb, struct ip_vs_conn *cp, int outin)
 {
 	enum ip_conntrack_info ctinfo;
-	struct nf_conn *ct = ct = nf_ct_get(skb, &ctinfo);
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
 	struct nf_conntrack_tuple new_tuple;
 
 	if (ct == NULL || nf_ct_is_confirmed(ct) || nf_ct_is_untracked(ct) ||
diff --git a/net/netfilter/ipvs/ip_vs_pe_sip.c b/net/netfilter/ipvs/ip_vs_pe_sip.c
index 1aa5cac..12475ef 100644
--- a/net/netfilter/ipvs/ip_vs_pe_sip.c
+++ b/net/netfilter/ipvs/ip_vs_pe_sip.c
@@ -68,23 +68,31 @@ static int get_callid(const char *dptr, unsigned int dataoff,
 static int
 ip_vs_sip_fill_param(struct ip_vs_conn_param *p, struct sk_buff *skb)
 {
+	struct sk_buff *reasm = skb_nfct_reasm(skb);
 	struct ip_vs_iphdr iph;
 	unsigned int dataoff, datalen, matchoff, matchlen;
 	const char *dptr;
 	int retc;
 
-	ip_vs_fill_iphdr(p->af, skb_network_header(skb), &iph);
+	ip_vs_fill_iph_skb(p->af, skb, &iph);
 
 	/* Only useful with UDP */
 	if (iph.protocol != IPPROTO_UDP)
 		return -EINVAL;
+	/* todo: IPv6 fragments:
+	 *       I think this only should be done for the first fragment. /HS
+	 */
+	if (reasm) {
+		skb = reasm;
+		dataoff = iph.thoff_reasm + sizeof(struct udphdr);
+	} else
+		dataoff = iph.len + sizeof(struct udphdr);
 
-	/* No Data ? */
-	dataoff = iph.len + sizeof(struct udphdr);
 	if (dataoff >= skb->len)
 		return -EINVAL;
-
-	if ((retc=skb_linearize(skb)) < 0)
+	/* todo: Check if this will mess-up the reasm skb !!! /HS */
+	retc = skb_linearize(skb);
+	if (retc < 0)
 		return retc;
 	dptr = skb->data + dataoff;
 	datalen = skb->len - dataoff;
diff --git a/net/netfilter/ipvs/ip_vs_proto.c b/net/netfilter/ipvs/ip_vs_proto.c
index 50d82186..939f7fb 100644
--- a/net/netfilter/ipvs/ip_vs_proto.c
+++ b/net/netfilter/ipvs/ip_vs_proto.c
@@ -280,17 +280,17 @@ ip_vs_tcpudp_debug_packet_v6(struct ip_vs_protocol *pp,
 	if (ih == NULL)
 		sprintf(buf, "TRUNCATED");
 	else if (ih->nexthdr == IPPROTO_FRAGMENT)
-		sprintf(buf, "%pI6->%pI6 frag",	&ih->saddr, &ih->daddr);
+		sprintf(buf, "%pI6c->%pI6c frag", &ih->saddr, &ih->daddr);
 	else {
 		__be16 _ports[2], *pptr;
 
 		pptr = skb_header_pointer(skb, offset + sizeof(struct ipv6hdr),
 					  sizeof(_ports), _ports);
 		if (pptr == NULL)
-			sprintf(buf, "TRUNCATED %pI6->%pI6",
+			sprintf(buf, "TRUNCATED %pI6c->%pI6c",
 				&ih->saddr, &ih->daddr);
 		else
-			sprintf(buf, "%pI6:%u->%pI6:%u",
+			sprintf(buf, "%pI6c:%u->%pI6c:%u",
 				&ih->saddr, ntohs(pptr[0]),
 				&ih->daddr, ntohs(pptr[1]));
 	}
diff --git a/net/netfilter/ipvs/ip_vs_proto_ah_esp.c b/net/netfilter/ipvs/ip_vs_proto_ah_esp.c
index 5b8eb8b..5de3dd3 100644
--- a/net/netfilter/ipvs/ip_vs_proto_ah_esp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_ah_esp.c
@@ -57,7 +57,7 @@ ah_esp_conn_fill_param_proto(struct net *net, int af,
 
 static struct ip_vs_conn *
 ah_esp_conn_in_get(int af, const struct sk_buff *skb,
-		   const struct ip_vs_iphdr *iph, unsigned int proto_off,
+		   const struct ip_vs_iphdr *iph,
 		   int inverse)
 {
 	struct ip_vs_conn *cp;
@@ -85,9 +85,7 @@ ah_esp_conn_in_get(int af, const struct sk_buff *skb,
 
 static struct ip_vs_conn *
 ah_esp_conn_out_get(int af, const struct sk_buff *skb,
-		    const struct ip_vs_iphdr *iph,
-		    unsigned int proto_off,
-		    int inverse)
+		    const struct ip_vs_iphdr *iph, int inverse)
 {
 	struct ip_vs_conn *cp;
 	struct ip_vs_conn_param p;
@@ -110,7 +108,8 @@ ah_esp_conn_out_get(int af, const struct sk_buff *skb,
 
 static int
 ah_esp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
-		     int *verdict, struct ip_vs_conn **cpp)
+		     int *verdict, struct ip_vs_conn **cpp,
+		     struct ip_vs_iphdr *iph)
 {
 	/*
 	 * AH/ESP is only related traffic. Pass the packet to IP stack.
diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
index 9f3fb75..746048b 100644
--- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
@@ -10,28 +10,26 @@
 
 static int
 sctp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
-		   int *verdict, struct ip_vs_conn **cpp)
+		   int *verdict, struct ip_vs_conn **cpp,
+		   struct ip_vs_iphdr *iph)
 {
 	struct net *net;
 	struct ip_vs_service *svc;
 	sctp_chunkhdr_t _schunkh, *sch;
 	sctp_sctphdr_t *sh, _sctph;
-	struct ip_vs_iphdr iph;
 
-	ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
-
-	sh = skb_header_pointer(skb, iph.len, sizeof(_sctph), &_sctph);
+	sh = skb_header_pointer(skb, iph->len, sizeof(_sctph), &_sctph);
 	if (sh == NULL)
 		return 0;
 
-	sch = skb_header_pointer(skb, iph.len + sizeof(sctp_sctphdr_t),
+	sch = skb_header_pointer(skb, iph->len + sizeof(sctp_sctphdr_t),
 				 sizeof(_schunkh), &_schunkh);
 	if (sch == NULL)
 		return 0;
 	net = skb_net(skb);
 	if ((sch->type == SCTP_CID_INIT) &&
-	    (svc = ip_vs_service_get(net, af, skb->mark, iph.protocol,
-				     &iph.daddr, sh->dest))) {
+	    (svc = ip_vs_service_get(net, af, skb->mark, iph->protocol,
+				     &iph->daddr, sh->dest))) {
 		int ignored;
 
 		if (ip_vs_todrop(net_ipvs(net))) {
@@ -47,10 +45,10 @@ sctp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
 		 * Let the virtual server select a real server for the
 		 * incoming connection, and create a connection entry.
 		 */
-		*cpp = ip_vs_schedule(svc, skb, pd, &ignored);
+		*cpp = ip_vs_schedule(svc, skb, pd, &ignored, iph);
 		if (!*cpp && ignored <= 0) {
 			if (!ignored)
-				*verdict = ip_vs_leave(svc, skb, pd);
+				*verdict = ip_vs_leave(svc, skb, pd, iph);
 			else {
 				ip_vs_service_put(svc);
 				*verdict = NF_DROP;
@@ -64,20 +62,18 @@ sctp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
 }
 
 static int
-sctp_snat_handler(struct sk_buff *skb,
-		  struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
+sctp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
+		  struct ip_vs_conn *cp, struct ip_vs_iphdr *iph)
 {
 	sctp_sctphdr_t *sctph;
-	unsigned int sctphoff;
+	unsigned int sctphoff = iph->len;
 	struct sk_buff *iter;
 	__be32 crc32;
 
 #ifdef CONFIG_IP_VS_IPV6
-	if (cp->af == AF_INET6)
-		sctphoff = sizeof(struct ipv6hdr);
-	else
+	if (cp->af == AF_INET6 && iph->fragoffs)
+		return 1;
 #endif
-		sctphoff = ip_hdrlen(skb);
 
 	/* csum_check requires unshared skb */
 	if (!skb_make_writable(skb, sctphoff + sizeof(*sctph)))
@@ -108,20 +104,18 @@ sctp_snat_handler(struct sk_buff *skb,
 }
 
 static int
-sctp_dnat_handler(struct sk_buff *skb,
-		  struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
+sctp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
+		  struct ip_vs_conn *cp, struct ip_vs_iphdr *iph)
 {
 	sctp_sctphdr_t *sctph;
-	unsigned int sctphoff;
+	unsigned int sctphoff = iph->len;
 	struct sk_buff *iter;
 	__be32 crc32;
 
 #ifdef CONFIG_IP_VS_IPV6
-	if (cp->af == AF_INET6)
-		sctphoff = sizeof(struct ipv6hdr);
-	else
+	if (cp->af == AF_INET6 && iph->fragoffs)
+		return 1;
 #endif
-		sctphoff = ip_hdrlen(skb);
 
 	/* csum_check requires unshared skb */
 	if (!skb_make_writable(skb, sctphoff + sizeof(*sctph)))
diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c
index cd609cc..9af653a 100644
--- a/net/netfilter/ipvs/ip_vs_proto_tcp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c
@@ -33,16 +33,14 @@
 
 static int
 tcp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
-		  int *verdict, struct ip_vs_conn **cpp)
+		  int *verdict, struct ip_vs_conn **cpp,
+		  struct ip_vs_iphdr *iph)
 {
 	struct net *net;
 	struct ip_vs_service *svc;
 	struct tcphdr _tcph, *th;
-	struct ip_vs_iphdr iph;
 
-	ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
-
-	th = skb_header_pointer(skb, iph.len, sizeof(_tcph), &_tcph);
+	th = skb_header_pointer(skb, iph->len, sizeof(_tcph), &_tcph);
 	if (th == NULL) {
 		*verdict = NF_DROP;
 		return 0;
@@ -50,8 +48,8 @@ tcp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
 	net = skb_net(skb);
 	/* No !th->ack check to allow scheduling on SYN+ACK for Active FTP */
 	if (th->syn &&
-	    (svc = ip_vs_service_get(net, af, skb->mark, iph.protocol,
-				     &iph.daddr, th->dest))) {
+	    (svc = ip_vs_service_get(net, af, skb->mark, iph->protocol,
+				     &iph->daddr, th->dest))) {
 		int ignored;
 
 		if (ip_vs_todrop(net_ipvs(net))) {
@@ -68,10 +66,10 @@ tcp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
 		 * Let the virtual server select a real server for the
 		 * incoming connection, and create a connection entry.
 		 */
-		*cpp = ip_vs_schedule(svc, skb, pd, &ignored);
+		*cpp = ip_vs_schedule(svc, skb, pd, &ignored, iph);
 		if (!*cpp && ignored <= 0) {
 			if (!ignored)
-				*verdict = ip_vs_leave(svc, skb, pd);
+				*verdict = ip_vs_leave(svc, skb, pd, iph);
 			else {
 				ip_vs_service_put(svc);
 				*verdict = NF_DROP;
@@ -128,20 +126,18 @@ tcp_partial_csum_update(int af, struct tcphdr *tcph,
 
 
 static int
-tcp_snat_handler(struct sk_buff *skb,
-		 struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
+tcp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
+		 struct ip_vs_conn *cp, struct ip_vs_iphdr *iph)
 {
 	struct tcphdr *tcph;
-	unsigned int tcphoff;
+	unsigned int tcphoff = iph->len;
 	int oldlen;
 	int payload_csum = 0;
 
 #ifdef CONFIG_IP_VS_IPV6
-	if (cp->af == AF_INET6)
-		tcphoff = sizeof(struct ipv6hdr);
-	else
+	if (cp->af == AF_INET6 && iph->fragoffs)
+		return 1;
 #endif
-		tcphoff = ip_hdrlen(skb);
 	oldlen = skb->len - tcphoff;
 
 	/* csum_check requires unshared skb */
@@ -208,20 +204,18 @@ tcp_snat_handler(struct sk_buff *skb,
 
 
 static int
-tcp_dnat_handler(struct sk_buff *skb,
-		 struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
+tcp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
+		 struct ip_vs_conn *cp, struct ip_vs_iphdr *iph)
 {
 	struct tcphdr *tcph;
-	unsigned int tcphoff;
+	unsigned int tcphoff = iph->len;
 	int oldlen;
 	int payload_csum = 0;
 
 #ifdef CONFIG_IP_VS_IPV6
-	if (cp->af == AF_INET6)
-		tcphoff = sizeof(struct ipv6hdr);
-	else
+	if (cp->af == AF_INET6 && iph->fragoffs)
+		return 1;
 #endif
-		tcphoff = ip_hdrlen(skb);
 	oldlen = skb->len - tcphoff;
 
 	/* csum_check requires unshared skb */
diff --git a/net/netfilter/ipvs/ip_vs_proto_udp.c b/net/netfilter/ipvs/ip_vs_proto_udp.c
index 2fedb2d..503a842 100644
--- a/net/netfilter/ipvs/ip_vs_proto_udp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_udp.c
@@ -30,23 +30,22 @@
 
 static int
 udp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
-		  int *verdict, struct ip_vs_conn **cpp)
+		  int *verdict, struct ip_vs_conn **cpp,
+		  struct ip_vs_iphdr *iph)
 {
 	struct net *net;
 	struct ip_vs_service *svc;
 	struct udphdr _udph, *uh;
-	struct ip_vs_iphdr iph;
 
-	ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
-
-	uh = skb_header_pointer(skb, iph.len, sizeof(_udph), &_udph);
+	/* IPv6 fragments, only first fragment will hit this */
+	uh = skb_header_pointer(skb, iph->len, sizeof(_udph), &_udph);
 	if (uh == NULL) {
 		*verdict = NF_DROP;
 		return 0;
 	}
 	net = skb_net(skb);
-	svc = ip_vs_service_get(net, af, skb->mark, iph.protocol,
-				&iph.daddr, uh->dest);
+	svc = ip_vs_service_get(net, af, skb->mark, iph->protocol,
+				&iph->daddr, uh->dest);
 	if (svc) {
 		int ignored;
 
@@ -64,10 +63,10 @@ udp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
 		 * Let the virtual server select a real server for the
 		 * incoming connection, and create a connection entry.
 		 */
-		*cpp = ip_vs_schedule(svc, skb, pd, &ignored);
+		*cpp = ip_vs_schedule(svc, skb, pd, &ignored, iph);
 		if (!*cpp && ignored <= 0) {
 			if (!ignored)
-				*verdict = ip_vs_leave(svc, skb, pd);
+				*verdict = ip_vs_leave(svc, skb, pd, iph);
 			else {
 				ip_vs_service_put(svc);
 				*verdict = NF_DROP;
@@ -125,20 +124,18 @@ udp_partial_csum_update(int af, struct udphdr *uhdr,
 
 
 static int
-udp_snat_handler(struct sk_buff *skb,
-		 struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
+udp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
+		 struct ip_vs_conn *cp, struct ip_vs_iphdr *iph)
 {
 	struct udphdr *udph;
-	unsigned int udphoff;
+	unsigned int udphoff = iph->len;
 	int oldlen;
 	int payload_csum = 0;
 
 #ifdef CONFIG_IP_VS_IPV6
-	if (cp->af == AF_INET6)
-		udphoff = sizeof(struct ipv6hdr);
-	else
+	if (cp->af == AF_INET6 && iph->fragoffs)
+		return 1;
 #endif
-		udphoff = ip_hdrlen(skb);
 	oldlen = skb->len - udphoff;
 
 	/* csum_check requires unshared skb */
@@ -210,20 +207,18 @@ udp_snat_handler(struct sk_buff *skb,
 
 
 static int
-udp_dnat_handler(struct sk_buff *skb,
-		 struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
+udp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
+		 struct ip_vs_conn *cp, struct ip_vs_iphdr *iph)
 {
 	struct udphdr *udph;
-	unsigned int udphoff;
+	unsigned int udphoff = iph->len;
 	int oldlen;
 	int payload_csum = 0;
 
 #ifdef CONFIG_IP_VS_IPV6
-	if (cp->af == AF_INET6)
-		udphoff = sizeof(struct ipv6hdr);
-	else
+	if (cp->af == AF_INET6 && iph->fragoffs)
+		return 1;
 #endif
-		udphoff = ip_hdrlen(skb);
 	oldlen = skb->len - udphoff;
 
 	/* csum_check requires unshared skb */
diff --git a/net/netfilter/ipvs/ip_vs_sched.c b/net/netfilter/ipvs/ip_vs_sched.c
index 08dbdd5..d6bf20d 100644
--- a/net/netfilter/ipvs/ip_vs_sched.c
+++ b/net/netfilter/ipvs/ip_vs_sched.c
@@ -159,7 +159,7 @@ void ip_vs_scheduler_err(struct ip_vs_service *svc, const char *msg)
 			     svc->fwmark, msg);
 #ifdef CONFIG_IP_VS_IPV6
 	} else if (svc->af == AF_INET6) {
-		IP_VS_ERR_RL("%s: %s [%pI6]:%d - %s\n",
+		IP_VS_ERR_RL("%s: %s [%pI6c]:%d - %s\n",
 			     svc->scheduler->name,
 			     ip_vs_proto_name(svc->protocol),
 			     &svc->addr.in6, ntohs(svc->port), msg);
diff --git a/net/netfilter/ipvs/ip_vs_sh.c b/net/netfilter/ipvs/ip_vs_sh.c
index 0512652..e331269 100644
--- a/net/netfilter/ipvs/ip_vs_sh.c
+++ b/net/netfilter/ipvs/ip_vs_sh.c
@@ -228,7 +228,7 @@ ip_vs_sh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
 	struct ip_vs_sh_bucket *tbl;
 	struct ip_vs_iphdr iph;
 
-	ip_vs_fill_iphdr(svc->af, skb_network_header(skb), &iph);
+	ip_vs_fill_iph_addr_only(svc->af, skb, &iph);
 
 	IP_VS_DBG(6, "ip_vs_sh_schedule(): Scheduling...\n");
 
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index cc4c809..ee6b7a9 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -338,7 +338,7 @@ __ip_vs_get_out_rt_v6(struct sk_buff *skb, struct ip_vs_dest *dest,
 	local = __ip_vs_is_local_route6(rt);
 	if (!((local ? IP_VS_RT_MODE_LOCAL : IP_VS_RT_MODE_NON_LOCAL) &
 	      rt_mode)) {
-		IP_VS_DBG_RL("Stopping traffic to %s address, dest: %pI6\n",
+		IP_VS_DBG_RL("Stopping traffic to %s address, dest: %pI6c\n",
 			     local ? "local":"non-local", daddr);
 		dst_release(&rt->dst);
 		return NULL;
@@ -346,8 +346,8 @@ __ip_vs_get_out_rt_v6(struct sk_buff *skb, struct ip_vs_dest *dest,
 	if (local && !(rt_mode & IP_VS_RT_MODE_RDR) &&
 	    !((ort = (struct rt6_info *) skb_dst(skb)) &&
 	      __ip_vs_is_local_route6(ort))) {
-		IP_VS_DBG_RL("Redirect from non-local address %pI6 to local "
-			     "requires NAT method, dest: %pI6\n",
+		IP_VS_DBG_RL("Redirect from non-local address %pI6c to local "
+			     "requires NAT method, dest: %pI6c\n",
 			     &ipv6_hdr(skb)->daddr, daddr);
 		dst_release(&rt->dst);
 		return NULL;
@@ -355,8 +355,8 @@ __ip_vs_get_out_rt_v6(struct sk_buff *skb, struct ip_vs_dest *dest,
 	if (unlikely(!local && (!skb->dev || skb->dev->flags & IFF_LOOPBACK) &&
 		     ipv6_addr_type(&ipv6_hdr(skb)->saddr) &
 				    IPV6_ADDR_LOOPBACK)) {
-		IP_VS_DBG_RL("Stopping traffic from loopback address %pI6 "
-			     "to non-local address, dest: %pI6\n",
+		IP_VS_DBG_RL("Stopping traffic from loopback address %pI6c "
+			     "to non-local address, dest: %pI6c\n",
 			     &ipv6_hdr(skb)->saddr, daddr);
 		dst_release(&rt->dst);
 		return NULL;
@@ -427,7 +427,7 @@ do {							\
  */
 int
 ip_vs_null_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
-		struct ip_vs_protocol *pp)
+		struct ip_vs_protocol *pp, struct ip_vs_iphdr *ipvsh)
 {
 	/* we do not touch skb and do not need pskb ptr */
 	IP_VS_XMIT(NFPROTO_IPV4, skb, cp, 1);
@@ -441,7 +441,7 @@ ip_vs_null_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
  */
 int
 ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
-		  struct ip_vs_protocol *pp)
+		  struct ip_vs_protocol *pp, struct ip_vs_iphdr *ipvsh)
 {
 	struct rtable *rt;			/* Route to the other host */
 	struct iphdr  *iph = ip_hdr(skb);
@@ -496,16 +496,16 @@ ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 #ifdef CONFIG_IP_VS_IPV6
 int
 ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
-		     struct ip_vs_protocol *pp)
+		     struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph)
 {
 	struct rt6_info *rt;			/* Route to the other host */
-	struct ipv6hdr  *iph = ipv6_hdr(skb);
 	int    mtu;
 
 	EnterFunction(10);
 
-	if (!(rt = __ip_vs_get_out_rt_v6(skb, NULL, &iph->daddr, NULL, 0,
-					 IP_VS_RT_MODE_NON_LOCAL)))
+	rt = __ip_vs_get_out_rt_v6(skb, NULL, &iph->daddr.in6, NULL, 0,
+				   IP_VS_RT_MODE_NON_LOCAL);
+	if (!rt)
 		goto tx_error_icmp;
 
 	/* MTU checking */
@@ -516,7 +516,9 @@ ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 
 			skb->dev = net->loopback_dev;
 		}
-		icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
+		/* only send ICMP too big on first fragment */
+		if (!iph->fragoffs)
+			icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
 		dst_release(&rt->dst);
 		IP_VS_DBG_RL("%s(): frag needed\n", __func__);
 		goto tx_error;
@@ -559,7 +561,7 @@ ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
  */
 int
 ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
-	       struct ip_vs_protocol *pp)
+	       struct ip_vs_protocol *pp, struct ip_vs_iphdr *ipvsh)
 {
 	struct rtable *rt;		/* Route to the other host */
 	int mtu;
@@ -592,7 +594,7 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
 	if (cp->flags & IP_VS_CONN_F_SYNC && local) {
 		enum ip_conntrack_info ctinfo;
-		struct nf_conn *ct = ct = nf_ct_get(skb, &ctinfo);
+		struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
 
 		if (ct && !nf_ct_is_untracked(ct)) {
 			IP_VS_DBG_RL_PKT(10, AF_INET, pp, skb, 0,
@@ -629,7 +631,7 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 		goto tx_error_put;
 
 	/* mangle the packet */
-	if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp))
+	if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp, ipvsh))
 		goto tx_error_put;
 	ip_hdr(skb)->daddr = cp->daddr.ip;
 	ip_send_check(ip_hdr(skb));
@@ -677,7 +679,7 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 #ifdef CONFIG_IP_VS_IPV6
 int
 ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
-		  struct ip_vs_protocol *pp)
+		  struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph)
 {
 	struct rt6_info *rt;		/* Route to the other host */
 	int mtu;
@@ -686,10 +688,9 @@ ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 	EnterFunction(10);
 
 	/* check if it is a connection of no-client-port */
-	if (unlikely(cp->flags & IP_VS_CONN_F_NO_CPORT)) {
+	if (unlikely(cp->flags & IP_VS_CONN_F_NO_CPORT && !iph->fragoffs)) {
 		__be16 _pt, *p;
-		p = skb_header_pointer(skb, sizeof(struct ipv6hdr),
-				       sizeof(_pt), &_pt);
+		p = skb_header_pointer(skb, iph->len, sizeof(_pt), &_pt);
 		if (p == NULL)
 			goto tx_error;
 		ip_vs_conn_fill_cport(cp, *p);
@@ -709,7 +710,7 @@ ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
 	if (cp->flags & IP_VS_CONN_F_SYNC && local) {
 		enum ip_conntrack_info ctinfo;
-		struct nf_conn *ct = ct = nf_ct_get(skb, &ctinfo);
+		struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
 
 		if (ct && !nf_ct_is_untracked(ct)) {
 			IP_VS_DBG_RL_PKT(10, AF_INET6, pp, skb, 0,
@@ -737,7 +738,9 @@ ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 
 			skb->dev = net->loopback_dev;
 		}
-		icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
+		/* only send ICMP too big on first fragment */
+		if (!iph->fragoffs)
+			icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
 		IP_VS_DBG_RL_PKT(0, AF_INET6, pp, skb, 0,
 				 "ip_vs_nat_xmit_v6(): frag needed for");
 		goto tx_error_put;
@@ -751,7 +754,7 @@ ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 		goto tx_error_put;
 
 	/* mangle the packet */
-	if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp))
+	if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp, iph))
 		goto tx_error;
 	ipv6_hdr(skb)->daddr = cp->daddr.in6;
 
@@ -812,7 +815,7 @@ tx_error_put:
  */
 int
 ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
-		  struct ip_vs_protocol *pp)
+		  struct ip_vs_protocol *pp, struct ip_vs_iphdr *ipvsh)
 {
 	struct netns_ipvs *ipvs = net_ipvs(skb_net(skb));
 	struct rtable *rt;			/* Route to the other host */
@@ -932,7 +935,7 @@ tx_error_put:
 #ifdef CONFIG_IP_VS_IPV6
 int
 ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
-		     struct ip_vs_protocol *pp)
+		     struct ip_vs_protocol *pp, struct ip_vs_iphdr *ipvsh)
 {
 	struct rt6_info *rt;		/* Route to the other host */
 	struct in6_addr saddr;		/* Source for tunnel */
@@ -972,7 +975,9 @@ ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 
 			skb->dev = net->loopback_dev;
 		}
-		icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
+		/* only send ICMP too big on first fragment */
+		if (!ipvsh->fragoffs)
+			icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
 		IP_VS_DBG_RL("%s(): frag needed\n", __func__);
 		goto tx_error_put;
 	}
@@ -1053,7 +1058,7 @@ tx_error_put:
  */
 int
 ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
-	      struct ip_vs_protocol *pp)
+	      struct ip_vs_protocol *pp, struct ip_vs_iphdr *ipvsh)
 {
 	struct rtable *rt;			/* Route to the other host */
 	struct iphdr  *iph = ip_hdr(skb);
@@ -1115,7 +1120,7 @@ ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 #ifdef CONFIG_IP_VS_IPV6
 int
 ip_vs_dr_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
-		 struct ip_vs_protocol *pp)
+		 struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph)
 {
 	struct rt6_info *rt;			/* Route to the other host */
 	int    mtu;
@@ -1139,7 +1144,9 @@ ip_vs_dr_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 
 			skb->dev = net->loopback_dev;
 		}
-		icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
+		/* only send ICMP too big on first fragment */
+		if (!iph->fragoffs)
+			icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
 		dst_release(&rt->dst);
 		IP_VS_DBG_RL("%s(): frag needed\n", __func__);
 		goto tx_error;
@@ -1183,7 +1190,8 @@ tx_error:
  */
 int
 ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
-		struct ip_vs_protocol *pp, int offset, unsigned int hooknum)
+		struct ip_vs_protocol *pp, int offset, unsigned int hooknum,
+		struct ip_vs_iphdr *iph)
 {
 	struct rtable	*rt;	/* Route to the other host */
 	int mtu;
@@ -1198,7 +1206,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 	   translate address/port back */
 	if (IP_VS_FWD_METHOD(cp) != IP_VS_CONN_F_MASQ) {
 		if (cp->packet_xmit)
-			rc = cp->packet_xmit(skb, cp, pp);
+			rc = cp->packet_xmit(skb, cp, pp, iph);
 		else
 			rc = NF_ACCEPT;
 		/* do not touch skb anymore */
@@ -1227,7 +1235,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
 	if (cp->flags & IP_VS_CONN_F_SYNC && local) {
 		enum ip_conntrack_info ctinfo;
-		struct nf_conn *ct = ct = nf_ct_get(skb, &ctinfo);
+		struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
 
 		if (ct && !nf_ct_is_untracked(ct)) {
 			IP_VS_DBG(10, "%s(): "
@@ -1304,7 +1312,8 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 #ifdef CONFIG_IP_VS_IPV6
 int
 ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
-		struct ip_vs_protocol *pp, int offset, unsigned int hooknum)
+		struct ip_vs_protocol *pp, int offset, unsigned int hooknum,
+		struct ip_vs_iphdr *iph)
 {
 	struct rt6_info	*rt;	/* Route to the other host */
 	int mtu;
@@ -1319,7 +1328,7 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 	   translate address/port back */
 	if (IP_VS_FWD_METHOD(cp) != IP_VS_CONN_F_MASQ) {
 		if (cp->packet_xmit)
-			rc = cp->packet_xmit(skb, cp, pp);
+			rc = cp->packet_xmit(skb, cp, pp, iph);
 		else
 			rc = NF_ACCEPT;
 		/* do not touch skb anymore */
@@ -1347,7 +1356,7 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
 	if (cp->flags & IP_VS_CONN_F_SYNC && local) {
 		enum ip_conntrack_info ctinfo;
-		struct nf_conn *ct = ct = nf_ct_get(skb, &ctinfo);
+		struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
 
 		if (ct && !nf_ct_is_untracked(ct)) {
 			IP_VS_DBG(10, "%s(): "
@@ -1375,7 +1384,9 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 
 			skb->dev = net->loopback_dev;
 		}
-		icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
+		/* only send ICMP too big on first fragment */
+		if (!iph->fragoffs)
+			icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
 		IP_VS_DBG_RL("%s(): frag needed\n", __func__);
 		goto tx_error_put;
 	}
diff --git a/net/netfilter/nf_conntrack_acct.c b/net/netfilter/nf_conntrack_acct.c
index d61e078..7df424e 100644
--- a/net/netfilter/nf_conntrack_acct.c
+++ b/net/netfilter/nf_conntrack_acct.c
@@ -69,6 +69,10 @@ static int nf_conntrack_acct_init_sysctl(struct net *net)
 
 	table[0].data = &net->ct.sysctl_acct;
 
+	/* Don't export sysctls to unprivileged users */
+	if (net->user_ns != &init_user_ns)
+		table[0].procname = NULL;
+
 	net->ct.acct_sysctl_header = register_net_sysctl(net, "net/netfilter",
 							 table);
 	if (!net->ct.acct_sysctl_header) {
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 0f241be..08cdc71 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -221,11 +221,9 @@ destroy_conntrack(struct nf_conntrack *nfct)
 	 * too. */
 	nf_ct_remove_expectations(ct);
 
-	/* We overload first tuple to link into unconfirmed list. */
-	if (!nf_ct_is_confirmed(ct)) {
-		BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode));
-		hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
-	}
+	/* We overload first tuple to link into unconfirmed or dying list.*/
+	BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode));
+	hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
 
 	NF_CT_STAT_INC(net, delete);
 	spin_unlock_bh(&nf_conntrack_lock);
@@ -247,6 +245,9 @@ void nf_ct_delete_from_lists(struct nf_conn *ct)
 	 * Otherwise we can get spurious warnings. */
 	NF_CT_STAT_INC(net, delete_list);
 	clean_from_lists(ct);
+	/* add this conntrack to the dying list */
+	hlist_nulls_add_head(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode,
+			     &net->ct.dying);
 	spin_unlock_bh(&nf_conntrack_lock);
 }
 EXPORT_SYMBOL_GPL(nf_ct_delete_from_lists);
@@ -268,31 +269,23 @@ static void death_by_event(unsigned long ul_conntrack)
 	}
 	/* we've got the event delivered, now it's dying */
 	set_bit(IPS_DYING_BIT, &ct->status);
-	spin_lock(&nf_conntrack_lock);
-	hlist_nulls_del(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
-	spin_unlock(&nf_conntrack_lock);
 	nf_ct_put(ct);
 }
 
-void nf_ct_insert_dying_list(struct nf_conn *ct)
+void nf_ct_dying_timeout(struct nf_conn *ct)
 {
 	struct net *net = nf_ct_net(ct);
 	struct nf_conntrack_ecache *ecache = nf_ct_ecache_find(ct);
 
 	BUG_ON(ecache == NULL);
 
-	/* add this conntrack to the dying list */
-	spin_lock_bh(&nf_conntrack_lock);
-	hlist_nulls_add_head(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode,
-			     &net->ct.dying);
-	spin_unlock_bh(&nf_conntrack_lock);
 	/* set a new timer to retry event delivery */
 	setup_timer(&ecache->timeout, death_by_event, (unsigned long)ct);
 	ecache->timeout.expires = jiffies +
 		(random32() % net->ct.sysctl_events_retry_timeout);
 	add_timer(&ecache->timeout);
 }
-EXPORT_SYMBOL_GPL(nf_ct_insert_dying_list);
+EXPORT_SYMBOL_GPL(nf_ct_dying_timeout);
 
 static void death_by_timeout(unsigned long ul_conntrack)
 {
@@ -307,7 +300,7 @@ static void death_by_timeout(unsigned long ul_conntrack)
 	    unlikely(nf_conntrack_event(IPCT_DESTROY, ct) < 0)) {
 		/* destroy event was not delivered */
 		nf_ct_delete_from_lists(ct);
-		nf_ct_insert_dying_list(ct);
+		nf_ct_dying_timeout(ct);
 		return;
 	}
 	set_bit(IPS_DYING_BIT, &ct->status);
@@ -1416,7 +1409,7 @@ EXPORT_SYMBOL_GPL(nf_ct_alloc_hashtable);
 
 int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp)
 {
-	int i, bucket;
+	int i, bucket, rc;
 	unsigned int hashsize, old_size;
 	struct hlist_nulls_head *hash, *old_hash;
 	struct nf_conntrack_tuple_hash *h;
@@ -1429,7 +1422,9 @@ int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp)
 	if (!nf_conntrack_htable_size)
 		return param_set_uint(val, kp);
 
-	hashsize = simple_strtoul(val, NULL, 0);
+	rc = kstrtouint(val, 0, &hashsize);
+	if (rc)
+		return rc;
 	if (!hashsize)
 		return -EINVAL;
 
diff --git a/net/netfilter/nf_conntrack_ecache.c b/net/netfilter/nf_conntrack_ecache.c
index de9781b..faa978f 100644
--- a/net/netfilter/nf_conntrack_ecache.c
+++ b/net/netfilter/nf_conntrack_ecache.c
@@ -196,6 +196,10 @@ static int nf_conntrack_event_init_sysctl(struct net *net)
 	table[0].data = &net->ct.sysctl_events;
 	table[1].data = &net->ct.sysctl_events_retry_timeout;
 
+	/* Don't export sysctls to unprivileged users */
+	if (net->user_ns != &init_user_ns)
+		table[0].procname = NULL;
+
 	net->ct.event_sysctl_header =
 		register_net_sysctl(net, "net/netfilter", table);
 	if (!net->ct.event_sysctl_header) {
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index c4bc637..884f2b3 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -64,6 +64,10 @@ static int nf_conntrack_helper_init_sysctl(struct net *net)
 
 	table[0].data = &net->ct.sysctl_auto_assign_helper;
 
+	/* Don't export sysctls to unprivileged users */
+	if (net->user_ns != &init_user_ns)
+		table[0].procname = NULL;
+
 	net->ct.helper_sysctl_header =
 		register_net_sysctl(net, "net/netfilter", table);
 
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 7bbfb3d..4e078cd8 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -898,7 +898,8 @@ ctnetlink_parse_zone(const struct nlattr *attr, u16 *zone)
 }
 
 static const struct nla_policy help_nla_policy[CTA_HELP_MAX+1] = {
-	[CTA_HELP_NAME]		= { .type = NLA_NUL_STRING },
+	[CTA_HELP_NAME]		= { .type = NLA_NUL_STRING,
+				    .len = NF_CT_HELPER_NAME_LEN - 1 },
 };
 
 static inline int
@@ -932,6 +933,8 @@ static const struct nla_policy ct_nla_policy[CTA_MAX+1] = {
 	[CTA_ID]		= { .type = NLA_U32 },
 	[CTA_NAT_DST]		= { .type = NLA_NESTED },
 	[CTA_TUPLE_MASTER]	= { .type = NLA_NESTED },
+	[CTA_NAT_SEQ_ADJ_ORIG]  = { .type = NLA_NESTED },
+	[CTA_NAT_SEQ_ADJ_REPLY] = { .type = NLA_NESTED },
 	[CTA_ZONE]		= { .type = NLA_U16 },
 	[CTA_MARK_MASK]		= { .type = NLA_U32 },
 };
@@ -989,7 +992,7 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
 					      nlmsg_report(nlh)) < 0) {
 			nf_ct_delete_from_lists(ct);
 			/* we failed to report the event, try later */
-			nf_ct_insert_dying_list(ct);
+			nf_ct_dying_timeout(ct);
 			nf_ct_put(ct);
 			return 0;
 		}
@@ -1089,6 +1092,112 @@ out:
 	return err == -EAGAIN ? -ENOBUFS : err;
 }
 
+static int ctnetlink_done_list(struct netlink_callback *cb)
+{
+	if (cb->args[1])
+		nf_ct_put((struct nf_conn *)cb->args[1]);
+	return 0;
+}
+
+static int
+ctnetlink_dump_list(struct sk_buff *skb, struct netlink_callback *cb,
+		    struct hlist_nulls_head *list)
+{
+	struct nf_conn *ct, *last;
+	struct nf_conntrack_tuple_hash *h;
+	struct hlist_nulls_node *n;
+	struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
+	u_int8_t l3proto = nfmsg->nfgen_family;
+	int res;
+
+	if (cb->args[2])
+		return 0;
+
+	spin_lock_bh(&nf_conntrack_lock);
+	last = (struct nf_conn *)cb->args[1];
+restart:
+	hlist_nulls_for_each_entry(h, n, list, hnnode) {
+		ct = nf_ct_tuplehash_to_ctrack(h);
+		if (l3proto && nf_ct_l3num(ct) != l3proto)
+			continue;
+		if (cb->args[1]) {
+			if (ct != last)
+				continue;
+			cb->args[1] = 0;
+		}
+		rcu_read_lock();
+		res = ctnetlink_fill_info(skb, NETLINK_CB(cb->skb).portid,
+					  cb->nlh->nlmsg_seq,
+					  NFNL_MSG_TYPE(cb->nlh->nlmsg_type),
+					  ct);
+		rcu_read_unlock();
+		if (res < 0) {
+			nf_conntrack_get(&ct->ct_general);
+			cb->args[1] = (unsigned long)ct;
+			goto out;
+		}
+	}
+	if (cb->args[1]) {
+		cb->args[1] = 0;
+		goto restart;
+	} else
+		cb->args[2] = 1;
+out:
+	spin_unlock_bh(&nf_conntrack_lock);
+	if (last)
+		nf_ct_put(last);
+
+	return skb->len;
+}
+
+static int
+ctnetlink_dump_dying(struct sk_buff *skb, struct netlink_callback *cb)
+{
+	struct net *net = sock_net(skb->sk);
+
+	return ctnetlink_dump_list(skb, cb, &net->ct.dying);
+}
+
+static int
+ctnetlink_get_ct_dying(struct sock *ctnl, struct sk_buff *skb,
+		       const struct nlmsghdr *nlh,
+		       const struct nlattr * const cda[])
+{
+	if (nlh->nlmsg_flags & NLM_F_DUMP) {
+		struct netlink_dump_control c = {
+			.dump = ctnetlink_dump_dying,
+			.done = ctnetlink_done_list,
+		};
+		return netlink_dump_start(ctnl, skb, nlh, &c);
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static int
+ctnetlink_dump_unconfirmed(struct sk_buff *skb, struct netlink_callback *cb)
+{
+	struct net *net = sock_net(skb->sk);
+
+	return ctnetlink_dump_list(skb, cb, &net->ct.unconfirmed);
+}
+
+static int
+ctnetlink_get_ct_unconfirmed(struct sock *ctnl, struct sk_buff *skb,
+			     const struct nlmsghdr *nlh,
+			     const struct nlattr * const cda[])
+{
+	if (nlh->nlmsg_flags & NLM_F_DUMP) {
+		struct netlink_dump_control c = {
+			.dump = ctnetlink_dump_unconfirmed,
+			.done = ctnetlink_done_list,
+		};
+		return netlink_dump_start(ctnl, skb, nlh, &c);
+	}
+
+	return -EOPNOTSUPP;
+}
+
 #ifdef CONFIG_NF_NAT_NEEDED
 static int
 ctnetlink_parse_nat_setup(struct nf_conn *ct,
@@ -2216,7 +2325,8 @@ static const struct nla_policy exp_nla_policy[CTA_EXPECT_MAX+1] = {
 	[CTA_EXPECT_MASK]	= { .type = NLA_NESTED },
 	[CTA_EXPECT_TIMEOUT]	= { .type = NLA_U32 },
 	[CTA_EXPECT_ID]		= { .type = NLA_U32 },
-	[CTA_EXPECT_HELP_NAME]	= { .type = NLA_NUL_STRING },
+	[CTA_EXPECT_HELP_NAME]	= { .type = NLA_NUL_STRING,
+				    .len = NF_CT_HELPER_NAME_LEN - 1 },
 	[CTA_EXPECT_ZONE]	= { .type = NLA_U16 },
 	[CTA_EXPECT_FLAGS]	= { .type = NLA_U32 },
 	[CTA_EXPECT_CLASS]	= { .type = NLA_U32 },
@@ -2712,6 +2822,8 @@ static const struct nfnl_callback ctnl_cb[IPCTNL_MSG_MAX] = {
 					    .policy = ct_nla_policy },
 	[IPCTNL_MSG_CT_GET_STATS_CPU]	= { .call = ctnetlink_stat_ct_cpu },
 	[IPCTNL_MSG_CT_GET_STATS]	= { .call = ctnetlink_stat_ct },
+	[IPCTNL_MSG_CT_GET_DYING]	= { .call = ctnetlink_get_ct_dying },
+	[IPCTNL_MSG_CT_GET_UNCONFIRMED]	= { .call = ctnetlink_get_ct_unconfirmed },
 };
 
 static const struct nfnl_callback ctnl_exp_cb[IPCTNL_MSG_EXP_MAX] = {
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index 6535326..a8ae287 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -815,7 +815,7 @@ static struct ctl_table dccp_sysctl_table[] = {
 };
 #endif /* CONFIG_SYSCTL */
 
-static int dccp_kmemdup_sysctl_table(struct nf_proto_net *pn,
+static int dccp_kmemdup_sysctl_table(struct net *net, struct nf_proto_net *pn,
 				     struct dccp_net *dn)
 {
 #ifdef CONFIG_SYSCTL
@@ -836,6 +836,10 @@ static int dccp_kmemdup_sysctl_table(struct nf_proto_net *pn,
 	pn->ctl_table[5].data = &dn->dccp_timeout[CT_DCCP_CLOSING];
 	pn->ctl_table[6].data = &dn->dccp_timeout[CT_DCCP_TIMEWAIT];
 	pn->ctl_table[7].data = &dn->dccp_loose;
+
+	/* Don't export sysctls to unprivileged users */
+	if (net->user_ns != &init_user_ns)
+		pn->ctl_table[0].procname = NULL;
 #endif
 	return 0;
 }
@@ -857,7 +861,7 @@ static int dccp_init_net(struct net *net, u_int16_t proto)
 		dn->dccp_timeout[CT_DCCP_TIMEWAIT]	= 2 * DCCP_MSL;
 	}
 
-	return dccp_kmemdup_sysctl_table(pn, dn);
+	return dccp_kmemdup_sysctl_table(net, pn, dn);
 }
 
 static struct nf_conntrack_l4proto dccp_proto4 __read_mostly = {
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 61f9285..83876e9 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -1353,6 +1353,8 @@ static const struct nla_policy tcp_timeout_nla_policy[CTA_TIMEOUT_TCP_MAX+1] = {
 	[CTA_TIMEOUT_TCP_TIME_WAIT]	= { .type = NLA_U32 },
 	[CTA_TIMEOUT_TCP_CLOSE]		= { .type = NLA_U32 },
 	[CTA_TIMEOUT_TCP_SYN_SENT2]	= { .type = NLA_U32 },
+	[CTA_TIMEOUT_TCP_RETRANS]	= { .type = NLA_U32 },
+	[CTA_TIMEOUT_TCP_UNACK]		= { .type = NLA_U32 },
 };
 #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
 
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index 9b39432..363285d 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -489,6 +489,10 @@ static int nf_conntrack_standalone_init_sysctl(struct net *net)
 	table[3].data = &net->ct.sysctl_checksum;
 	table[4].data = &net->ct.sysctl_log_invalid;
 
+	/* Don't export sysctls to unprivileged users */
+	if (net->user_ns != &init_user_ns)
+		table[0].procname = NULL;
+
 	net->ct.sysctl_header = register_net_sysctl(net, "net/netfilter", table);
 	if (!net->ct.sysctl_header)
 		goto out_unregister_netfilter;
diff --git a/net/netfilter/nf_conntrack_timestamp.c b/net/netfilter/nf_conntrack_timestamp.c
index dbb364f..7ea8026 100644
--- a/net/netfilter/nf_conntrack_timestamp.c
+++ b/net/netfilter/nf_conntrack_timestamp.c
@@ -51,6 +51,10 @@ static int nf_conntrack_tstamp_init_sysctl(struct net *net)
 
 	table[0].data = &net->ct.sysctl_tstamp;
 
+	/* Don't export sysctls to unprivileged users */
+	if (net->user_ns != &init_user_ns)
+		table[0].procname = NULL;
+
 	net->ct.tstamp_sysctl_header = register_net_sysctl(net,	"net/netfilter",
 							   table);
 	if (!net->ct.tstamp_sysctl_header) {
diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index 8d2cf9e..d812c12 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -14,84 +14,32 @@
 #include "nf_internals.h"
 
 /*
- * A queue handler may be registered for each protocol.  Each is protected by
- * long term mutex.  The handler must provide an an outfn() to accept packets
- * for queueing and must reinject all packets it receives, no matter what.
+ * Hook for nfnetlink_queue to register its queue handler.
+ * We do this so that most of the NFQUEUE code can be modular.
+ *
+ * Once the queue is registered it must reinject all packets it
+ * receives, no matter what.
  */
-static const struct nf_queue_handler __rcu *queue_handler[NFPROTO_NUMPROTO] __read_mostly;
-
-static DEFINE_MUTEX(queue_handler_mutex);
+static const struct nf_queue_handler __rcu *queue_handler __read_mostly;
 
 /* return EBUSY when somebody else is registered, return EEXIST if the
  * same handler is registered, return 0 in case of success. */
-int nf_register_queue_handler(u_int8_t pf, const struct nf_queue_handler *qh)
+void nf_register_queue_handler(const struct nf_queue_handler *qh)
 {
-	int ret;
-	const struct nf_queue_handler *old;
-
-	if (pf >= ARRAY_SIZE(queue_handler))
-		return -EINVAL;
-
-	mutex_lock(&queue_handler_mutex);
-	old = rcu_dereference_protected(queue_handler[pf],
-					lockdep_is_held(&queue_handler_mutex));
-	if (old == qh)
-		ret = -EEXIST;
-	else if (old)
-		ret = -EBUSY;
-	else {
-		rcu_assign_pointer(queue_handler[pf], qh);
-		ret = 0;
-	}
-	mutex_unlock(&queue_handler_mutex);
-
-	return ret;
+	/* should never happen, we only have one queueing backend in kernel */
+	WARN_ON(rcu_access_pointer(queue_handler));
+	rcu_assign_pointer(queue_handler, qh);
 }
 EXPORT_SYMBOL(nf_register_queue_handler);
 
 /* The caller must flush their queue before this */
-int nf_unregister_queue_handler(u_int8_t pf, const struct nf_queue_handler *qh)
+void nf_unregister_queue_handler(void)
 {
-	const struct nf_queue_handler *old;
-
-	if (pf >= ARRAY_SIZE(queue_handler))
-		return -EINVAL;
-
-	mutex_lock(&queue_handler_mutex);
-	old = rcu_dereference_protected(queue_handler[pf],
-					lockdep_is_held(&queue_handler_mutex));
-	if (old && old != qh) {
-		mutex_unlock(&queue_handler_mutex);
-		return -EINVAL;
-	}
-
-	RCU_INIT_POINTER(queue_handler[pf], NULL);
-	mutex_unlock(&queue_handler_mutex);
-
+	RCU_INIT_POINTER(queue_handler, NULL);
 	synchronize_rcu();
-
-	return 0;
 }
 EXPORT_SYMBOL(nf_unregister_queue_handler);
 
-void nf_unregister_queue_handlers(const struct nf_queue_handler *qh)
-{
-	u_int8_t pf;
-
-	mutex_lock(&queue_handler_mutex);
-	for (pf = 0; pf < ARRAY_SIZE(queue_handler); pf++)  {
-		if (rcu_dereference_protected(
-				queue_handler[pf],
-				lockdep_is_held(&queue_handler_mutex)
-				) == qh)
-			RCU_INIT_POINTER(queue_handler[pf], NULL);
-	}
-	mutex_unlock(&queue_handler_mutex);
-
-	synchronize_rcu();
-}
-EXPORT_SYMBOL_GPL(nf_unregister_queue_handlers);
-
 static void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
 {
 	/* Release those devices we held, or Alexey will kill me. */
@@ -137,7 +85,7 @@ static int __nf_queue(struct sk_buff *skb,
 	/* QUEUE == DROP if no one is waiting, to be safe. */
 	rcu_read_lock();
 
-	qh = rcu_dereference(queue_handler[pf]);
+	qh = rcu_dereference(queue_handler);
 	if (!qh) {
 		status = -ESRCH;
 		goto err_unlock;
@@ -344,77 +292,3 @@ void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict)
 	kfree(entry);
 }
 EXPORT_SYMBOL(nf_reinject);
-
-#ifdef CONFIG_PROC_FS
-static void *seq_start(struct seq_file *seq, loff_t *pos)
-{
-	if (*pos >= ARRAY_SIZE(queue_handler))
-		return NULL;
-
-	return pos;
-}
-
-static void *seq_next(struct seq_file *s, void *v, loff_t *pos)
-{
-	(*pos)++;
-
-	if (*pos >= ARRAY_SIZE(queue_handler))
-		return NULL;
-
-	return pos;
-}
-
-static void seq_stop(struct seq_file *s, void *v)
-{
-
-}
-
-static int seq_show(struct seq_file *s, void *v)
-{
-	int ret;
-	loff_t *pos = v;
-	const struct nf_queue_handler *qh;
-
-	rcu_read_lock();
-	qh = rcu_dereference(queue_handler[*pos]);
-	if (!qh)
-		ret = seq_printf(s, "%2lld NONE\n", *pos);
-	else
-		ret = seq_printf(s, "%2lld %s\n", *pos, qh->name);
-	rcu_read_unlock();
-
-	return ret;
-}
-
-static const struct seq_operations nfqueue_seq_ops = {
-	.start	= seq_start,
-	.next	= seq_next,
-	.stop	= seq_stop,
-	.show	= seq_show,
-};
-
-static int nfqueue_open(struct inode *inode, struct file *file)
-{
-	return seq_open(file, &nfqueue_seq_ops);
-}
-
-static const struct file_operations nfqueue_file_ops = {
-	.owner	 = THIS_MODULE,
-	.open	 = nfqueue_open,
-	.read	 = seq_read,
-	.llseek	 = seq_lseek,
-	.release = seq_release,
-};
-#endif /* PROC_FS */
-
-
-int __init netfilter_queue_init(void)
-{
-#ifdef CONFIG_PROC_FS
-	if (!proc_create("nf_queue", S_IRUGO,
-			 proc_net_netfilter, &nfqueue_file_ops))
-		return -1;
-#endif
-	return 0;
-}
-
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index ffb92c0..58a09b7 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -138,7 +138,7 @@ static int nfnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 	const struct nfnetlink_subsystem *ss;
 	int type, err;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	/* All the messages must at least contain nfgenmsg */
diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c
index e12d44e..3158d87 100644
--- a/net/netfilter/nfnetlink_queue_core.c
+++ b/net/netfilter/nfnetlink_queue_core.c
@@ -809,7 +809,6 @@ static const struct nla_policy nfqa_cfg_policy[NFQA_CFG_MAX+1] = {
 };
 
 static const struct nf_queue_handler nfqh = {
-	.name 	= "nf_queue",
 	.outfn	= &nfqnl_enqueue_packet,
 };
 
@@ -827,14 +826,10 @@ nfqnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
 	if (nfqa[NFQA_CFG_CMD]) {
 		cmd = nla_data(nfqa[NFQA_CFG_CMD]);
 
-		/* Commands without queue context - might sleep */
+		/* Obsolete commands without queue context */
 		switch (cmd->command) {
-		case NFQNL_CFG_CMD_PF_BIND:
-			return nf_register_queue_handler(ntohs(cmd->pf),
-							 &nfqh);
-		case NFQNL_CFG_CMD_PF_UNBIND:
-			return nf_unregister_queue_handler(ntohs(cmd->pf),
-							   &nfqh);
+		case NFQNL_CFG_CMD_PF_BIND: return 0;
+		case NFQNL_CFG_CMD_PF_UNBIND: return 0;
 		}
 	}
 
@@ -1074,6 +1069,7 @@ static int __init nfnetlink_queue_init(void)
 #endif
 
 	register_netdevice_notifier(&nfqnl_dev_notifier);
+	nf_register_queue_handler(&nfqh);
 	return status;
 
 #ifdef CONFIG_PROC_FS
@@ -1087,7 +1083,7 @@ cleanup_netlink_notifier:
 
 static void __exit nfnetlink_queue_fini(void)
 {
-	nf_unregister_queue_handlers(&nfqh);
+	nf_unregister_queue_handler();
 	unregister_netdevice_notifier(&nfqnl_dev_notifier);
 #ifdef CONFIG_PROC_FS
 	remove_proc_entry("nfnetlink_queue", proc_net_netfilter);
diff --git a/net/netfilter/xt_HMARK.c b/net/netfilter/xt_HMARK.c
index 1686ca1..73b73f6 100644
--- a/net/netfilter/xt_HMARK.c
+++ b/net/netfilter/xt_HMARK.c
@@ -167,7 +167,7 @@ hmark_pkt_set_htuple_ipv6(const struct sk_buff *skb, struct hmark_tuple *t,
 			  const struct xt_hmark_info *info)
 {
 	struct ipv6hdr *ip6, _ip6;
-	int flag = IP6T_FH_F_AUTH;
+	int flag = IP6_FH_F_AUTH;
 	unsigned int nhoff = 0;
 	u16 fragoff = 0;
 	int nexthdr;
@@ -177,7 +177,7 @@ hmark_pkt_set_htuple_ipv6(const struct sk_buff *skb, struct hmark_tuple *t,
 	if (nexthdr < 0)
 		return 0;
 	/* No need to check for icmp errors on fragments */
-	if ((flag & IP6T_FH_F_FRAG) || (nexthdr != IPPROTO_ICMPV6))
+	if ((flag & IP6_FH_F_FRAG) || (nexthdr != IPPROTO_ICMPV6))
 		goto noicmp;
 	/* Use inner header in case of ICMP errors */
 	if (get_inner6_hdr(skb, &nhoff)) {
@@ -185,7 +185,7 @@ hmark_pkt_set_htuple_ipv6(const struct sk_buff *skb, struct hmark_tuple *t,
 		if (ip6 == NULL)
 			return -1;
 		/* If AH present, use SPI like in ESP. */
-		flag = IP6T_FH_F_AUTH;
+		flag = IP6_FH_F_AUTH;
 		nexthdr = ipv6_find_hdr(skb, &nhoff, -1, &fragoff, &flag);
 		if (nexthdr < 0)
 			return -1;
@@ -201,7 +201,7 @@ noicmp:
 	if (t->proto == IPPROTO_ICMPV6)
 		return 0;
 
-	if (flag & IP6T_FH_F_FRAG)
+	if (flag & IP6_FH_F_FRAG)
 		return 0;
 
 	hmark_set_tuple_ports(skb, nhoff, t, info);
diff --git a/net/netfilter/xt_ipvs.c b/net/netfilter/xt_ipvs.c
index bb10b07..8d47c37 100644
--- a/net/netfilter/xt_ipvs.c
+++ b/net/netfilter/xt_ipvs.c
@@ -67,7 +67,7 @@ ipvs_mt(const struct sk_buff *skb, struct xt_action_param *par)
 		goto out;
 	}
 
-	ip_vs_fill_iphdr(family, skb_network_header(skb), &iph);
+	ip_vs_fill_iph_skb(family, skb, &iph);
 
 	if (data->bitmask & XT_IPVS_PROTO)
 		if ((iph.protocol == data->l4proto) ^
@@ -85,7 +85,7 @@ ipvs_mt(const struct sk_buff *skb, struct xt_action_param *par)
 	/*
 	 * Check if the packet belongs to an existing entry
 	 */
-	cp = pp->conn_out_get(family, skb, &iph, iph.len, 1 /* inverse */);
+	cp = pp->conn_out_get(family, skb, &iph, 1 /* inverse */);
 	if (unlikely(cp == NULL)) {
 		match = false;
 		goto out;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 4da797f..c8a1eb6 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -612,7 +612,7 @@ retry:
 static inline int netlink_capable(const struct socket *sock, unsigned int flag)
 {
 	return (nl_table[sock->sk->sk_protocol].flags & flag) ||
-	       capable(CAP_NET_ADMIN);
+		ns_capable(sock_net(sock->sk)->user_ns, CAP_NET_ADMIN);
 }
 
 static void
diff --git a/net/nfc/Kconfig b/net/nfc/Kconfig
index 8d8d9bc..60c3bbb 100644
--- a/net/nfc/Kconfig
+++ b/net/nfc/Kconfig
@@ -3,8 +3,8 @@
 #
 
 menuconfig NFC
-	depends on NET && EXPERIMENTAL
-	tristate "NFC subsystem support (EXPERIMENTAL)"
+	depends on NET
+	tristate "NFC subsystem support"
 	default n
 	help
 	  Say Y here if you want to build support for NFC (Near field
diff --git a/net/nfc/core.c b/net/nfc/core.c
index 479bee3..aa64ea4 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -40,6 +40,9 @@
 int nfc_devlist_generation;
 DEFINE_MUTEX(nfc_devlist_mutex);
 
+/* NFC device ID bitmap */
+static DEFINE_IDA(nfc_index_ida);
+
 /**
  * nfc_dev_up - turn on the NFC device
  *
@@ -181,6 +184,7 @@ int nfc_stop_poll(struct nfc_dev *dev)
 
 	dev->ops->stop_poll(dev);
 	dev->polling = false;
+	dev->rf_mode = NFC_RF_NONE;
 
 error:
 	device_unlock(&dev->dev);
@@ -194,7 +198,7 @@ static struct nfc_target *nfc_find_target(struct nfc_dev *dev, u32 target_idx)
 	if (dev->n_targets == 0)
 		return NULL;
 
-	for (i = 0; i < dev->n_targets ; i++) {
+	for (i = 0; i < dev->n_targets; i++) {
 		if (dev->targets[i].idx == target_idx)
 			return &dev->targets[i];
 	}
@@ -274,12 +278,14 @@ int nfc_dep_link_down(struct nfc_dev *dev)
 	if (!rc) {
 		dev->dep_link_up = false;
 		dev->active_target = NULL;
+		dev->rf_mode = NFC_RF_NONE;
 		nfc_llcp_mac_is_down(dev);
 		nfc_genl_dep_link_down_event(dev);
 	}
 
 error:
 	device_unlock(&dev->dev);
+
 	return rc;
 }
 
@@ -503,6 +509,7 @@ EXPORT_SYMBOL(nfc_tm_activated);
 int nfc_tm_deactivated(struct nfc_dev *dev)
 {
 	dev->dep_link_up = false;
+	dev->rf_mode = NFC_RF_NONE;
 
 	return nfc_genl_tm_deactivated(dev);
 }
@@ -697,6 +704,8 @@ static void nfc_check_pres_work(struct work_struct *work)
 
 	if (dev->active_target && timer_pending(&dev->check_pres_timer) == 0) {
 		rc = dev->ops->check_presence(dev, dev->active_target);
+		if (rc == -EOPNOTSUPP)
+			goto exit;
 		if (!rc) {
 			mod_timer(&dev->check_pres_timer, jiffies +
 				  msecs_to_jiffies(NFC_CHECK_PRES_FREQ_MS));
@@ -708,6 +717,7 @@ static void nfc_check_pres_work(struct work_struct *work)
 		}
 	}
 
+exit:
 	device_unlock(&dev->dev);
 }
 
@@ -753,7 +763,6 @@ struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
 				    u32 supported_protocols,
 				    int tx_headroom, int tx_tailroom)
 {
-	static atomic_t dev_no = ATOMIC_INIT(0);
 	struct nfc_dev *dev;
 
 	if (!ops->start_poll || !ops->stop_poll || !ops->activate_target ||
@@ -767,11 +776,6 @@ struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
 	if (!dev)
 		return NULL;
 
-	dev->dev.class = &nfc_class;
-	dev->idx = atomic_inc_return(&dev_no) - 1;
-	dev_set_name(&dev->dev, "nfc%d", dev->idx);
-	device_initialize(&dev->dev);
-
 	dev->ops = ops;
 	dev->supported_protocols = supported_protocols;
 	dev->tx_headroom = tx_headroom;
@@ -779,6 +783,7 @@ struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
 
 	nfc_genl_data_init(&dev->genl_data);
 
+	dev->rf_mode = NFC_RF_NONE;
 
 	/* first generation must not be 0 */
 	dev->targets_generation = 1;
@@ -806,6 +811,14 @@ int nfc_register_device(struct nfc_dev *dev)
 
 	pr_debug("dev_name=%s\n", dev_name(&dev->dev));
 
+	dev->idx = ida_simple_get(&nfc_index_ida, 0, 0, GFP_KERNEL);
+	if (dev->idx < 0)
+		return dev->idx;
+
+	dev->dev.class = &nfc_class;
+	dev_set_name(&dev->dev, "nfc%d", dev->idx);
+	device_initialize(&dev->dev);
+
 	mutex_lock(&nfc_devlist_mutex);
 	nfc_devlist_generation++;
 	rc = device_add(&dev->dev);
@@ -834,10 +847,12 @@ EXPORT_SYMBOL(nfc_register_device);
  */
 void nfc_unregister_device(struct nfc_dev *dev)
 {
-	int rc;
+	int rc, id;
 
 	pr_debug("dev_name=%s\n", dev_name(&dev->dev));
 
+	id = dev->idx;
+
 	mutex_lock(&nfc_devlist_mutex);
 	nfc_devlist_generation++;
 
@@ -856,6 +871,8 @@ void nfc_unregister_device(struct nfc_dev *dev)
 		pr_debug("The userspace won't be notified that the device %s was removed\n",
 			 dev_name(&dev->dev));
 
+	ida_simple_remove(&nfc_index_ida, id);
+
 }
 EXPORT_SYMBOL(nfc_unregister_device);
 
diff --git a/net/nfc/hci/command.c b/net/nfc/hci/command.c
index 71c6a70..7d99410 100644
--- a/net/nfc/hci/command.c
+++ b/net/nfc/hci/command.c
@@ -257,16 +257,16 @@ static u8 nfc_hci_create_pipe(struct nfc_hci_dev *hdev, u8 dest_host,
 	*result = nfc_hci_execute_cmd(hdev, NFC_HCI_ADMIN_PIPE,
 				      NFC_HCI_ADM_CREATE_PIPE,
 				      (u8 *) &params, sizeof(params), &skb);
-	if (*result == 0) {
-		resp = (struct hci_create_pipe_resp *)skb->data;
-		pipe = resp->pipe;
-		kfree_skb(skb);
+	if (*result < 0)
+		return NFC_HCI_INVALID_PIPE;
 
-		pr_debug("pipe created=%d\n", pipe);
+	resp = (struct hci_create_pipe_resp *)skb->data;
+	pipe = resp->pipe;
+	kfree_skb(skb);
 
-		return pipe;
-	} else
-		return NFC_HCI_INVALID_PIPE;
+	pr_debug("pipe created=%d\n", pipe);
+
+	return pipe;
 }
 
 static int nfc_hci_delete_pipe(struct nfc_hci_dev *hdev, u8 pipe)
@@ -279,8 +279,6 @@ static int nfc_hci_delete_pipe(struct nfc_hci_dev *hdev, u8 pipe)
 
 static int nfc_hci_clear_all_pipes(struct nfc_hci_dev *hdev)
 {
-	int r;
-
 	u8 param[2];
 
 	/* TODO: Find out what the identity reference data is
@@ -288,10 +286,8 @@ static int nfc_hci_clear_all_pipes(struct nfc_hci_dev *hdev)
 
 	pr_debug("\n");
 
-	r = nfc_hci_execute_cmd(hdev, NFC_HCI_ADMIN_PIPE,
-				NFC_HCI_ADM_CLEAR_ALL_PIPE, param, 2, NULL);
-
-	return 0;
+	return nfc_hci_execute_cmd(hdev, NFC_HCI_ADMIN_PIPE,
+				   NFC_HCI_ADM_CLEAR_ALL_PIPE, param, 2, NULL);
 }
 
 int nfc_hci_disconnect_gate(struct nfc_hci_dev *hdev, u8 gate)
@@ -348,7 +344,7 @@ int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate,
 		return -EADDRINUSE;
 
 	if (pipe != NFC_HCI_INVALID_PIPE)
-		goto pipe_is_open;
+		goto open_pipe;
 
 	switch (dest_gate) {
 	case NFC_HCI_LINK_MGMT_GATE:
@@ -365,6 +361,7 @@ int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate,
 		break;
 	}
 
+open_pipe:
 	r = nfc_hci_open_pipe(hdev, pipe);
 	if (r < 0) {
 		if (pipe_created)
@@ -375,7 +372,6 @@ int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate,
 		return r;
 	}
 
-pipe_is_open:
 	hdev->gate2pipe[dest_gate] = pipe;
 
 	return 0;
diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c
index 5fbb6e4..7bea574 100644
--- a/net/nfc/hci/core.c
+++ b/net/nfc/hci/core.c
@@ -33,17 +33,20 @@
 /* Largest headroom needed for outgoing HCI commands */
 #define HCI_CMDS_HEADROOM 1
 
-static int nfc_hci_result_to_errno(u8 result)
+int nfc_hci_result_to_errno(u8 result)
 {
 	switch (result) {
 	case NFC_HCI_ANY_OK:
 		return 0;
+	case NFC_HCI_ANY_E_REG_PAR_UNKNOWN:
+		return -EOPNOTSUPP;
 	case NFC_HCI_ANY_E_TIMEOUT:
 		return -ETIME;
 	default:
 		return -1;
 	}
 }
+EXPORT_SYMBOL(nfc_hci_result_to_errno);
 
 static void nfc_hci_msg_tx_work(struct work_struct *work)
 {
@@ -65,8 +68,9 @@ static void nfc_hci_msg_tx_work(struct work_struct *work)
 							  -ETIME);
 			kfree(hdev->cmd_pending_msg);
 			hdev->cmd_pending_msg = NULL;
-		} else
+		} else {
 			goto exit;
+		}
 	}
 
 next_msg:
@@ -166,7 +170,7 @@ void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
 	kfree_skb(skb);
 }
 
-static u32 nfc_hci_sak_to_protocol(u8 sak)
+u32 nfc_hci_sak_to_protocol(u8 sak)
 {
 	switch (NFC_HCI_TYPE_A_SEL_PROT(sak)) {
 	case NFC_HCI_TYPE_A_SEL_PROT_MIFARE:
@@ -181,8 +185,9 @@ static u32 nfc_hci_sak_to_protocol(u8 sak)
 		return 0xffffffff;
 	}
 }
+EXPORT_SYMBOL(nfc_hci_sak_to_protocol);
 
-static int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate)
+int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate)
 {
 	struct nfc_target *targets;
 	struct sk_buff *atqa_skb = NULL;
@@ -263,7 +268,9 @@ static int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate)
 		break;
 	}
 
-	targets->hci_reader_gate = gate;
+	/* if driver set the new gate, we will skip the old one */
+	if (targets->hci_reader_gate == 0x00)
+		targets->hci_reader_gate = gate;
 
 	r = nfc_targets_found(hdev->ndev, targets, 1);
 
@@ -275,11 +282,18 @@ exit:
 
 	return r;
 }
+EXPORT_SYMBOL(nfc_hci_target_discovered);
 
 void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
 			    struct sk_buff *skb)
 {
 	int r = 0;
+	u8 gate = nfc_hci_pipe2gate(hdev, pipe);
+
+	if (gate == 0xff) {
+		pr_err("Discarded event %x to unopened pipe %x\n", event, pipe);
+		goto exit;
+	}
 
 	switch (event) {
 	case NFC_HCI_EVT_TARGET_DISCOVERED:
@@ -303,12 +317,14 @@ void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
 			goto exit;
 		}
 
-		r = nfc_hci_target_discovered(hdev,
-					      nfc_hci_pipe2gate(hdev, pipe));
+		r = nfc_hci_target_discovered(hdev, gate);
 		break;
 	default:
-		/* TODO: Unknown events are hardware specific
-		 * pass them to the driver (needs a new hci_ops) */
+		if (hdev->ops->event_received) {
+			hdev->ops->event_received(hdev, gate, event, skb);
+			return;
+		}
+
 		break;
 	}
 
@@ -410,6 +426,10 @@ static int hci_dev_version(struct nfc_hci_dev *hdev)
 
 	r = nfc_hci_get_param(hdev, NFC_HCI_ID_MGMT_GATE,
 			      NFC_HCI_ID_MGMT_VERSION_SW, &skb);
+	if (r == -EOPNOTSUPP) {
+		pr_info("Software/Hardware info not available\n");
+		return 0;
+	}
 	if (r < 0)
 		return r;
 
@@ -527,7 +547,8 @@ static int hci_start_poll(struct nfc_dev *nfc_dev,
 		return hdev->ops->start_poll(hdev, im_protocols, tm_protocols);
 	else
 		return nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE,
-				       NFC_HCI_EVT_READER_REQUESTED, NULL, 0);
+					  NFC_HCI_EVT_READER_REQUESTED,
+					  NULL, 0);
 }
 
 static void hci_stop_poll(struct nfc_dev *nfc_dev)
@@ -538,6 +559,28 @@ static void hci_stop_poll(struct nfc_dev *nfc_dev)
 			   NFC_HCI_EVT_END_OPERATION, NULL, 0);
 }
 
+static int hci_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
+				__u8 comm_mode, __u8 *gb, size_t gb_len)
+{
+	struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
+
+	if (hdev->ops->dep_link_up)
+		return hdev->ops->dep_link_up(hdev, target, comm_mode,
+						gb, gb_len);
+
+	return 0;
+}
+
+static int hci_dep_link_down(struct nfc_dev *nfc_dev)
+{
+	struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
+
+	if (hdev->ops->dep_link_down)
+		return hdev->ops->dep_link_down(hdev);
+
+	return 0;
+}
+
 static int hci_activate_target(struct nfc_dev *nfc_dev,
 			       struct nfc_target *target, u32 protocol)
 {
@@ -586,8 +629,8 @@ static int hci_transceive(struct nfc_dev *nfc_dev, struct nfc_target *target,
 	switch (target->hci_reader_gate) {
 	case NFC_HCI_RF_READER_A_GATE:
 	case NFC_HCI_RF_READER_B_GATE:
-		if (hdev->ops->data_exchange) {
-			r = hdev->ops->data_exchange(hdev, target, skb, cb,
+		if (hdev->ops->im_transceive) {
+			r = hdev->ops->im_transceive(hdev, target, skb, cb,
 						     cb_context);
 			if (r <= 0)	/* handled */
 				break;
@@ -604,14 +647,14 @@ static int hci_transceive(struct nfc_dev *nfc_dev, struct nfc_target *target,
 					   skb->len, hci_transceive_cb, hdev);
 		break;
 	default:
-		if (hdev->ops->data_exchange) {
-			r = hdev->ops->data_exchange(hdev, target, skb, cb,
+		if (hdev->ops->im_transceive) {
+			r = hdev->ops->im_transceive(hdev, target, skb, cb,
 						     cb_context);
 			if (r == 1)
 				r = -ENOTSUPP;
-		}
-		else
+		} else {
 			r = -ENOTSUPP;
+		}
 		break;
 	}
 
@@ -620,6 +663,16 @@ static int hci_transceive(struct nfc_dev *nfc_dev, struct nfc_target *target,
 	return r;
 }
 
+static int hci_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
+{
+	struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
+
+	if (hdev->ops->tm_send)
+		return hdev->ops->tm_send(hdev, skb);
+	else
+		return -ENOTSUPP;
+}
+
 static int hci_check_presence(struct nfc_dev *nfc_dev,
 			      struct nfc_target *target)
 {
@@ -723,9 +776,12 @@ static struct nfc_ops hci_nfc_ops = {
 	.dev_down = hci_dev_down,
 	.start_poll = hci_start_poll,
 	.stop_poll = hci_stop_poll,
+	.dep_link_up = hci_dep_link_up,
+	.dep_link_down = hci_dep_link_down,
 	.activate_target = hci_activate_target,
 	.deactivate_target = hci_deactivate_target,
 	.im_transceive = hci_transceive,
+	.tm_send = hci_tm_send,
 	.check_presence = hci_check_presence,
 };
 
@@ -848,7 +904,7 @@ void nfc_hci_driver_failure(struct nfc_hci_dev *hdev, int err)
 }
 EXPORT_SYMBOL(nfc_hci_driver_failure);
 
-void inline nfc_hci_recv_frame(struct nfc_hci_dev *hdev, struct sk_buff *skb)
+void nfc_hci_recv_frame(struct nfc_hci_dev *hdev, struct sk_buff *skb)
 {
 	nfc_llc_rcv_from_drv(hdev->llc, skb);
 }
diff --git a/net/nfc/hci/llc.c b/net/nfc/hci/llc.c
index ae1205d..fe5e966 100644
--- a/net/nfc/hci/llc.c
+++ b/net/nfc/hci/llc.c
@@ -72,7 +72,7 @@ int nfc_llc_register(const char *name, struct nfc_llc_ops *ops)
 	llc_engine->ops = ops;
 
 	INIT_LIST_HEAD(&llc_engine->entry);
-	list_add_tail (&llc_engine->entry, &llc_engines);
+	list_add_tail(&llc_engine->entry, &llc_engines);
 
 	return 0;
 }
diff --git a/net/nfc/hci/llc_shdlc.c b/net/nfc/hci/llc_shdlc.c
index 01cbc72..27b313b 100644
--- a/net/nfc/hci/llc_shdlc.c
+++ b/net/nfc/hci/llc_shdlc.c
@@ -634,9 +634,9 @@ static void llc_shdlc_sm_work(struct work_struct *work)
 			r = llc_shdlc_connect_initiate(shdlc);
 		else
 			r = -ETIME;
-		if (r < 0)
+		if (r < 0) {
 			llc_shdlc_connect_complete(shdlc, r);
-		else {
+		} else {
 			mod_timer(&shdlc->connect_timer, jiffies +
 				  msecs_to_jiffies(SHDLC_CONNECT_VALUE_MS));
 
@@ -682,9 +682,8 @@ static void llc_shdlc_sm_work(struct work_struct *work)
 			llc_shdlc_handle_send_queue(shdlc);
 		}
 
-		if (shdlc->hard_fault) {
+		if (shdlc->hard_fault)
 			shdlc->llc_failure(shdlc->hdev, shdlc->hard_fault);
-		}
 		break;
 	default:
 		break;
diff --git a/net/nfc/llcp/Kconfig b/net/nfc/llcp/Kconfig
index fbf5e81..a1a41cd 100644
--- a/net/nfc/llcp/Kconfig
+++ b/net/nfc/llcp/Kconfig
@@ -1,6 +1,6 @@
 config NFC_LLCP
-       depends on NFC && EXPERIMENTAL
-       bool "NFC LLCP support (EXPERIMENTAL)"
+       depends on NFC
+       bool "NFC LLCP support"
        default n
        help
 	 Say Y here if you want to build support for a kernel NFC LLCP
diff --git a/net/nfc/llcp/commands.c b/net/nfc/llcp/commands.c
index c45ccd6..df24be4 100644
--- a/net/nfc/llcp/commands.c
+++ b/net/nfc/llcp/commands.c
@@ -261,7 +261,6 @@ int nfc_llcp_disconnect(struct nfc_llcp_sock *sock)
 	struct sk_buff *skb;
 	struct nfc_dev *dev;
 	struct nfc_llcp_local *local;
-	u16 size = 0;
 
 	pr_debug("Sending DISC\n");
 
@@ -273,17 +272,10 @@ int nfc_llcp_disconnect(struct nfc_llcp_sock *sock)
 	if (dev == NULL)
 		return -ENODEV;
 
-	size += LLCP_HEADER_SIZE;
-	size += dev->tx_headroom + dev->tx_tailroom + NFC_HEADER_SIZE;
-
-	skb = alloc_skb(size, GFP_ATOMIC);
+	skb = llcp_allocate_pdu(sock, LLCP_PDU_DISC, 0);
 	if (skb == NULL)
 		return -ENOMEM;
 
-	skb_reserve(skb, dev->tx_headroom + NFC_HEADER_SIZE);
-
-	skb = llcp_add_header(skb, sock->dsap, sock->ssap, LLCP_PDU_DISC);
-
 	skb_queue_tail(&local->tx_queue, skb);
 
 	return 0;
@@ -324,8 +316,7 @@ int nfc_llcp_send_connect(struct nfc_llcp_sock *sock)
 	struct sk_buff *skb;
 	u8 *service_name_tlv = NULL, service_name_tlv_length;
 	u8 *miux_tlv = NULL, miux_tlv_length;
-	u8 *rw_tlv = NULL, rw_tlv_length, rw;
-	__be16 miux;
+	u8 *rw_tlv = NULL, rw_tlv_length;
 	int err;
 	u16 size = 0;
 
@@ -343,13 +334,11 @@ int nfc_llcp_send_connect(struct nfc_llcp_sock *sock)
 		size += service_name_tlv_length;
 	}
 
-	miux = cpu_to_be16(LLCP_MAX_MIUX);
-	miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&miux, 0,
+	miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&local->miux, 0,
 				      &miux_tlv_length);
 	size += miux_tlv_length;
 
-	rw = LLCP_MAX_RW;
-	rw_tlv = nfc_llcp_build_tlv(LLCP_TLV_RW, &rw, 0, &rw_tlv_length);
+	rw_tlv = nfc_llcp_build_tlv(LLCP_TLV_RW, &local->rw, 0, &rw_tlv_length);
 	size += rw_tlv_length;
 
 	pr_debug("SKB size %d SN length %zu\n", size, sock->service_name_len);
@@ -386,8 +375,7 @@ int nfc_llcp_send_cc(struct nfc_llcp_sock *sock)
 	struct nfc_llcp_local *local;
 	struct sk_buff *skb;
 	u8 *miux_tlv = NULL, miux_tlv_length;
-	u8 *rw_tlv = NULL, rw_tlv_length, rw;
-	__be16 miux;
+	u8 *rw_tlv = NULL, rw_tlv_length;
 	int err;
 	u16 size = 0;
 
@@ -397,13 +385,11 @@ int nfc_llcp_send_cc(struct nfc_llcp_sock *sock)
 	if (local == NULL)
 		return -ENODEV;
 
-	miux = cpu_to_be16(LLCP_MAX_MIUX);
-	miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&miux, 0,
+	miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&local->miux, 0,
 				      &miux_tlv_length);
 	size += miux_tlv_length;
 
-	rw = LLCP_MAX_RW;
-	rw_tlv = nfc_llcp_build_tlv(LLCP_TLV_RW, &rw, 0, &rw_tlv_length);
+	rw_tlv = nfc_llcp_build_tlv(LLCP_TLV_RW, &local->rw, 0, &rw_tlv_length);
 	size += rw_tlv_length;
 
 	skb = llcp_allocate_pdu(sock, LLCP_PDU_CC, size);
@@ -428,6 +414,52 @@ error_tlv:
 	return err;
 }
 
+int nfc_llcp_send_snl(struct nfc_llcp_local *local, u8 tid, u8 sap)
+{
+	struct sk_buff *skb;
+	struct nfc_dev *dev;
+	u8 *sdres_tlv = NULL, sdres_tlv_length, sdres[2];
+	u16 size = 0;
+
+	pr_debug("Sending SNL tid 0x%x sap 0x%x\n", tid, sap);
+
+	if (local == NULL)
+		return -ENODEV;
+
+	dev = local->dev;
+	if (dev == NULL)
+		return -ENODEV;
+
+	sdres[0] = tid;
+	sdres[1] = sap;
+	sdres_tlv = nfc_llcp_build_tlv(LLCP_TLV_SDRES, sdres, 0,
+				       &sdres_tlv_length);
+	if (sdres_tlv == NULL)
+		return -ENOMEM;
+
+	size += LLCP_HEADER_SIZE;
+	size += dev->tx_headroom + dev->tx_tailroom + NFC_HEADER_SIZE;
+	size += sdres_tlv_length;
+
+	skb = alloc_skb(size, GFP_KERNEL);
+	if (skb == NULL) {
+		kfree(sdres_tlv);
+		return -ENOMEM;
+	}
+
+	skb_reserve(skb, dev->tx_headroom + NFC_HEADER_SIZE);
+
+	skb = llcp_add_header(skb, LLCP_SAP_SDP, LLCP_SAP_SDP, LLCP_PDU_SNL);
+
+	memcpy(skb_put(skb, sdres_tlv_length), sdres_tlv, sdres_tlv_length);
+
+	skb_queue_tail(&local->tx_queue, skb);
+
+	kfree(sdres_tlv);
+
+	return 0;
+}
+
 int nfc_llcp_send_dm(struct nfc_llcp_local *local, u8 ssap, u8 dsap, u8 reason)
 {
 	struct sk_buff *skb;
@@ -496,6 +528,23 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock,
 	if (local == NULL)
 		return -ENODEV;
 
+	/* Remote is ready but has not acknowledged our frames */
+	if((sock->remote_ready &&
+	    skb_queue_len(&sock->tx_pending_queue) >= sock->rw &&
+	    skb_queue_len(&sock->tx_queue) >= 2 * sock->rw)) {
+		pr_err("Pending queue is full %d frames\n",
+		       skb_queue_len(&sock->tx_pending_queue));
+		return -ENOBUFS;
+	}
+
+	/* Remote is not ready and we've been queueing enough frames */
+	if ((!sock->remote_ready &&
+	     skb_queue_len(&sock->tx_queue) >= 2 * sock->rw)) {
+		pr_err("Tx queue is full %d frames\n",
+		       skb_queue_len(&sock->tx_queue));
+		return -ENOBUFS;
+	}
+
 	msg_data = kzalloc(len, GFP_KERNEL);
 	if (msg_data == NULL)
 		return -ENOMEM;
@@ -541,6 +590,63 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock,
 	return len;
 }
 
+int nfc_llcp_send_ui_frame(struct nfc_llcp_sock *sock, u8 ssap, u8 dsap,
+			   struct msghdr *msg, size_t len)
+{
+	struct sk_buff *pdu;
+	struct nfc_llcp_local *local;
+	size_t frag_len = 0, remaining_len;
+	u8 *msg_ptr, *msg_data;
+	int err;
+
+	pr_debug("Send UI frame len %zd\n", len);
+
+	local = sock->local;
+	if (local == NULL)
+		return -ENODEV;
+
+	msg_data = kzalloc(len, GFP_KERNEL);
+	if (msg_data == NULL)
+		return -ENOMEM;
+
+	if (memcpy_fromiovec(msg_data, msg->msg_iov, len)) {
+		kfree(msg_data);
+		return -EFAULT;
+	}
+
+	remaining_len = len;
+	msg_ptr = msg_data;
+
+	while (remaining_len > 0) {
+
+		frag_len = min_t(size_t, sock->miu, remaining_len);
+
+		pr_debug("Fragment %zd bytes remaining %zd",
+			 frag_len, remaining_len);
+
+		pdu = nfc_alloc_send_skb(sock->dev, &sock->sk, MSG_DONTWAIT,
+					 frag_len + LLCP_HEADER_SIZE, &err);
+		if (pdu == NULL) {
+			pr_err("Could not allocate PDU\n");
+			continue;
+		}
+
+		pdu = llcp_add_header(pdu, dsap, ssap, LLCP_PDU_UI);
+
+		memcpy(skb_put(pdu, frag_len), msg_ptr, frag_len);
+
+		/* No need to check for the peer RW for UI frames */
+		skb_queue_tail(&local->tx_queue, pdu);
+
+		remaining_len -= frag_len;
+		msg_ptr += frag_len;
+	}
+
+	kfree(msg_data);
+
+	return len;
+}
+
 int nfc_llcp_send_rr(struct nfc_llcp_sock *sock)
 {
 	struct sk_buff *skb;
diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c
index 9e8f4b2..ec43914 100644
--- a/net/nfc/llcp/llcp.c
+++ b/net/nfc/llcp/llcp.c
@@ -45,12 +45,38 @@ void nfc_llcp_sock_unlink(struct llcp_sock_list *l, struct sock *sk)
 	write_unlock(&l->lock);
 }
 
+static void nfc_llcp_socket_purge(struct nfc_llcp_sock *sock)
+{
+	struct nfc_llcp_local *local = sock->local;
+	struct sk_buff *s, *tmp;
+
+	pr_debug("%p\n", &sock->sk);
+
+	skb_queue_purge(&sock->tx_queue);
+	skb_queue_purge(&sock->tx_pending_queue);
+	skb_queue_purge(&sock->tx_backlog_queue);
+
+	if (local == NULL)
+		return;
+
+	/* Search for local pending SKBs that are related to this socket */
+	skb_queue_walk_safe(&local->tx_queue, s, tmp) {
+		if (s->sk != &sock->sk)
+			continue;
+
+		skb_unlink(s, &local->tx_queue);
+		kfree_skb(s);
+	}
+}
+
 static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen)
 {
 	struct sock *sk;
 	struct hlist_node *node, *tmp;
 	struct nfc_llcp_sock *llcp_sock;
 
+	skb_queue_purge(&local->tx_queue);
+
 	write_lock(&local->sockets.lock);
 
 	sk_for_each_safe(sk, node, tmp, &local->sockets.head) {
@@ -58,6 +84,8 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen)
 
 		bh_lock_sock(sk);
 
+		nfc_llcp_socket_purge(llcp_sock);
+
 		if (sk->sk_state == LLCP_CONNECTED)
 			nfc_put_device(llcp_sock->dev);
 
@@ -65,7 +93,8 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen)
 			struct nfc_llcp_sock *lsk, *n;
 			struct sock *accept_sk;
 
-			list_for_each_entry_safe(lsk, n, &llcp_sock->accept_queue,
+			list_for_each_entry_safe(lsk, n,
+						 &llcp_sock->accept_queue,
 						 accept_queue) {
 				accept_sk = &lsk->sk;
 				bh_lock_sock(accept_sk);
@@ -85,6 +114,16 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen)
 			}
 		}
 
+		/*
+		 * If we have a connection less socket bound, we keep it alive
+		 * if the device is still present.
+		 */
+		if (sk->sk_state == LLCP_BOUND && sk->sk_type == SOCK_DGRAM &&
+		    listen == true) {
+			bh_unlock_sock(sk);
+			continue;
+		}
+
 		sk->sk_state = LLCP_CLOSED;
 
 		bh_unlock_sock(sk);
@@ -134,7 +173,7 @@ static struct nfc_llcp_sock *nfc_llcp_sock_get(struct nfc_llcp_local *local,
 {
 	struct sock *sk;
 	struct hlist_node *node;
-	struct nfc_llcp_sock *llcp_sock;
+	struct nfc_llcp_sock *llcp_sock, *tmp_sock;
 
 	pr_debug("ssap dsap %d %d\n", ssap, dsap);
 
@@ -146,10 +185,12 @@ static struct nfc_llcp_sock *nfc_llcp_sock_get(struct nfc_llcp_local *local,
 	llcp_sock = NULL;
 
 	sk_for_each(sk, node, &local->sockets.head) {
-		llcp_sock = nfc_llcp_sock(sk);
+		tmp_sock = nfc_llcp_sock(sk);
 
-		if (llcp_sock->ssap == ssap && llcp_sock->dsap == dsap)
+		if (tmp_sock->ssap == ssap && tmp_sock->dsap == dsap) {
+			llcp_sock = tmp_sock;
 			break;
+		}
 	}
 
 	read_unlock(&local->sockets.lock);
@@ -249,7 +290,12 @@ struct nfc_llcp_sock *nfc_llcp_sock_from_sn(struct nfc_llcp_local *local,
 
 		pr_debug("llcp sock %p\n", tmp_sock);
 
-		if (tmp_sock->sk.sk_state != LLCP_LISTEN)
+		if (tmp_sock->sk.sk_type == SOCK_STREAM &&
+		    tmp_sock->sk.sk_state != LLCP_LISTEN)
+			continue;
+
+		if (tmp_sock->sk.sk_type == SOCK_DGRAM &&
+		    tmp_sock->sk.sk_state != LLCP_BOUND)
 			continue;
 
 		if (tmp_sock->service_name == NULL ||
@@ -421,10 +467,9 @@ static u8 nfc_llcp_reserve_sdp_ssap(struct nfc_llcp_local *local)
 static int nfc_llcp_build_gb(struct nfc_llcp_local *local)
 {
 	u8 *gb_cur, *version_tlv, version, version_length;
-	u8 *lto_tlv, lto, lto_length;
+	u8 *lto_tlv, lto_length;
 	u8 *wks_tlv, wks_length;
 	u8 *miux_tlv, miux_length;
-	__be16 miux;
 	u8 gb_len = 0;
 	int ret = 0;
 
@@ -433,9 +478,7 @@ static int nfc_llcp_build_gb(struct nfc_llcp_local *local)
 					 1, &version_length);
 	gb_len += version_length;
 
-	/* 1500 ms */
-	lto = 150;
-	lto_tlv = nfc_llcp_build_tlv(LLCP_TLV_LTO, &lto, 1, &lto_length);
+	lto_tlv = nfc_llcp_build_tlv(LLCP_TLV_LTO, &local->lto, 1, &lto_length);
 	gb_len += lto_length;
 
 	pr_debug("Local wks 0x%lx\n", local->local_wks);
@@ -443,8 +486,7 @@ static int nfc_llcp_build_gb(struct nfc_llcp_local *local)
 				     &wks_length);
 	gb_len += wks_length;
 
-	miux = cpu_to_be16(LLCP_MAX_MIUX);
-	miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&miux, 0,
+	miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&local->miux, 0,
 				      &miux_length);
 	gb_len += miux_length;
 
@@ -610,7 +652,12 @@ static void nfc_llcp_tx_work(struct work_struct *work)
 	if (skb != NULL) {
 		sk = skb->sk;
 		llcp_sock = nfc_llcp_sock(sk);
-		if (llcp_sock != NULL) {
+
+		if (llcp_sock == NULL && nfc_llcp_ptype(skb) == LLCP_PDU_I) {
+			nfc_llcp_send_symm(local->dev);
+		} else {
+			struct sk_buff *copy_skb = NULL;
+			u8 ptype = nfc_llcp_ptype(skb);
 			int ret;
 
 			pr_debug("Sending pending skb\n");
@@ -618,24 +665,29 @@ static void nfc_llcp_tx_work(struct work_struct *work)
 				       DUMP_PREFIX_OFFSET, 16, 1,
 				       skb->data, skb->len, true);
 
+			if (ptype == LLCP_PDU_I)
+				copy_skb = skb_copy(skb, GFP_ATOMIC);
+
 			nfc_llcp_send_to_raw_sock(local, skb,
 						  NFC_LLCP_DIRECTION_TX);
 
 			ret = nfc_data_exchange(local->dev, local->target_idx,
 						skb, nfc_llcp_recv, local);
 
-			if (!ret && nfc_llcp_ptype(skb) == LLCP_PDU_I) {
-				skb = skb_get(skb);
-				skb_queue_tail(&llcp_sock->tx_pending_queue,
-					       skb);
+			if (ret) {
+				kfree_skb(copy_skb);
+				goto out;
 			}
-		} else {
-			nfc_llcp_send_symm(local->dev);
+
+			if (ptype == LLCP_PDU_I && copy_skb)
+				skb_queue_tail(&llcp_sock->tx_pending_queue,
+					       copy_skb);
 		}
 	} else {
 		nfc_llcp_send_symm(local->dev);
 	}
 
+out:
 	mod_timer(&local->link_timer,
 		  jiffies + msecs_to_jiffies(2 * local->remote_lto));
 }
@@ -704,6 +756,39 @@ static u8 *nfc_llcp_connect_sn(struct sk_buff *skb, size_t *sn_len)
 	return NULL;
 }
 
+static void nfc_llcp_recv_ui(struct nfc_llcp_local *local,
+			     struct sk_buff *skb)
+{
+	struct nfc_llcp_sock *llcp_sock;
+	struct nfc_llcp_ui_cb *ui_cb;
+	u8 dsap, ssap;
+
+	dsap = nfc_llcp_dsap(skb);
+	ssap = nfc_llcp_ssap(skb);
+
+	ui_cb = nfc_llcp_ui_skb_cb(skb);
+	ui_cb->dsap = dsap;
+	ui_cb->ssap = ssap;
+
+	printk("%s %d %d\n", __func__, dsap, ssap);
+
+	pr_debug("%d %d\n", dsap, ssap);
+
+	/* We're looking for a bound socket, not a client one */
+	llcp_sock = nfc_llcp_sock_get(local, dsap, LLCP_SAP_SDP);
+	if (llcp_sock == NULL || llcp_sock->sk.sk_type != SOCK_DGRAM)
+		return;
+
+	/* There is no sequence with UI frames */
+	skb_pull(skb, LLCP_HEADER_SIZE);
+	if (sock_queue_rcv_skb(&llcp_sock->sk, skb)) {
+		pr_err("receive queue is full\n");
+		skb_queue_head(&llcp_sock->tx_backlog_queue, skb);
+	}
+
+	nfc_llcp_sock_put(llcp_sock);
+}
+
 static void nfc_llcp_recv_connect(struct nfc_llcp_local *local,
 				  struct sk_buff *skb)
 {
@@ -823,9 +908,6 @@ static void nfc_llcp_recv_connect(struct nfc_llcp_local *local,
 fail:
 	/* Send DM */
 	nfc_llcp_send_dm(local, dsap, ssap, reason);
-
-	return;
-
 }
 
 int nfc_llcp_queue_i_frames(struct nfc_llcp_sock *sock)
@@ -903,15 +985,18 @@ static void nfc_llcp_recv_hdlc(struct nfc_llcp_local *local,
 	/* Remove skbs from the pending queue */
 	if (llcp_sock->send_ack_n != nr) {
 		struct sk_buff *s, *tmp;
+		u8 n;
 
 		llcp_sock->send_ack_n = nr;
 
 		/* Remove and free all skbs until ns == nr */
 		skb_queue_walk_safe(&llcp_sock->tx_pending_queue, s, tmp) {
+			n = nfc_llcp_ns(s);
+
 			skb_unlink(s, &llcp_sock->tx_pending_queue);
 			kfree_skb(s);
 
-			if (nfc_llcp_ns(s) == nr)
+			if (n == nr)
 				break;
 		}
 
@@ -953,6 +1038,9 @@ static void nfc_llcp_recv_disc(struct nfc_llcp_local *local,
 
 	sk = &llcp_sock->sk;
 	lock_sock(sk);
+
+	nfc_llcp_socket_purge(llcp_sock);
+
 	if (sk->sk_state == LLCP_CLOSED) {
 		release_sock(sk);
 		nfc_llcp_sock_put(llcp_sock);
@@ -1027,7 +1115,7 @@ static void nfc_llcp_recv_dm(struct nfc_llcp_local *local, struct sk_buff *skb)
 	}
 
 	if (llcp_sock == NULL) {
-		pr_err("Invalid DM\n");
+		pr_debug("Already closed\n");
 		return;
 	}
 
@@ -1038,8 +1126,100 @@ static void nfc_llcp_recv_dm(struct nfc_llcp_local *local, struct sk_buff *skb)
 	sk->sk_state_change(sk);
 
 	nfc_llcp_sock_put(llcp_sock);
+}
 
-	return;
+static void nfc_llcp_recv_snl(struct nfc_llcp_local *local,
+			      struct sk_buff *skb)
+{
+	struct nfc_llcp_sock *llcp_sock;
+	u8 dsap, ssap, *tlv, type, length, tid, sap;
+	u16 tlv_len, offset;
+	char *service_name;
+	size_t service_name_len;
+
+	dsap = nfc_llcp_dsap(skb);
+	ssap = nfc_llcp_ssap(skb);
+
+	pr_debug("%d %d\n", dsap, ssap);
+
+	if (dsap != LLCP_SAP_SDP || ssap != LLCP_SAP_SDP) {
+		pr_err("Wrong SNL SAP\n");
+		return;
+	}
+
+	tlv = &skb->data[LLCP_HEADER_SIZE];
+	tlv_len = skb->len - LLCP_HEADER_SIZE;
+	offset = 0;
+
+	while (offset < tlv_len) {
+		type = tlv[0];
+		length = tlv[1];
+
+		switch (type) {
+		case LLCP_TLV_SDREQ:
+			tid = tlv[2];
+			service_name = (char *) &tlv[3];
+			service_name_len = length - 1;
+
+			pr_debug("Looking for %.16s\n", service_name);
+
+			if (service_name_len == strlen("urn:nfc:sn:sdp") &&
+			    !strncmp(service_name, "urn:nfc:sn:sdp",
+				     service_name_len)) {
+				sap = 1;
+				goto send_snl;
+			}
+
+			llcp_sock = nfc_llcp_sock_from_sn(local, service_name,
+							  service_name_len);
+			if (!llcp_sock) {
+				sap = 0;
+				goto send_snl;
+			}
+
+			/*
+			 * We found a socket but its ssap has not been reserved
+			 * yet. We need to assign it for good and send a reply.
+			 * The ssap will be freed when the socket is closed.
+			 */
+			if (llcp_sock->ssap == LLCP_SDP_UNBOUND) {
+				atomic_t *client_count;
+
+				sap = nfc_llcp_reserve_sdp_ssap(local);
+
+				pr_debug("Reserving %d\n", sap);
+
+				if (sap == LLCP_SAP_MAX) {
+					sap = 0;
+					goto send_snl;
+				}
+
+				client_count =
+					&local->local_sdp_cnt[sap -
+							      LLCP_WKS_NUM_SAP];
+
+				atomic_inc(client_count);
+
+				llcp_sock->ssap = sap;
+				llcp_sock->reserved_ssap = sap;
+			} else {
+				sap = llcp_sock->ssap;
+			}
+
+			pr_debug("%p %d\n", llcp_sock, sap);
+
+send_snl:
+			nfc_llcp_send_snl(local, tid, sap);
+			break;
+
+		default:
+			pr_err("Invalid SNL tlv value 0x%x\n", type);
+			break;
+		}
+
+		offset += length + 2;
+		tlv += length + 2;
+	}
 }
 
 static void nfc_llcp_rx_work(struct work_struct *work)
@@ -1072,6 +1252,11 @@ static void nfc_llcp_rx_work(struct work_struct *work)
 		pr_debug("SYMM\n");
 		break;
 
+	case LLCP_PDU_UI:
+		pr_debug("UI\n");
+		nfc_llcp_recv_ui(local, skb);
+		break;
+
 	case LLCP_PDU_CONNECT:
 		pr_debug("CONNECT\n");
 		nfc_llcp_recv_connect(local, skb);
@@ -1092,6 +1277,11 @@ static void nfc_llcp_rx_work(struct work_struct *work)
 		nfc_llcp_recv_dm(local, skb);
 		break;
 
+	case LLCP_PDU_SNL:
+		pr_debug("SNL\n");
+		nfc_llcp_recv_snl(local, skb);
+		break;
+
 	case LLCP_PDU_I:
 	case LLCP_PDU_RR:
 	case LLCP_PDU_RNR:
@@ -1104,8 +1294,6 @@ static void nfc_llcp_rx_work(struct work_struct *work)
 	schedule_work(&local->tx_work);
 	kfree_skb(local->rx_pending);
 	local->rx_pending = NULL;
-
-	return;
 }
 
 void nfc_llcp_recv(void *data, struct sk_buff *skb, int err)
@@ -1121,8 +1309,6 @@ void nfc_llcp_recv(void *data, struct sk_buff *skb, int err)
 	local->rx_pending = skb_get(skb);
 	del_timer(&local->link_timer);
 	schedule_work(&local->rx_work);
-
-	return;
 }
 
 int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb)
@@ -1205,6 +1391,10 @@ int nfc_llcp_register_device(struct nfc_dev *ndev)
 	rwlock_init(&local->connecting_sockets.lock);
 	rwlock_init(&local->raw_sockets.lock);
 
+	local->lto = 150; /* 1500 ms */
+	local->rw = LLCP_MAX_RW;
+	local->miux = cpu_to_be16(LLCP_MAX_MIUX);
+
 	nfc_llcp_build_gb(local);
 
 	local->remote_miu = LLCP_DEFAULT_MIU;
diff --git a/net/nfc/llcp/llcp.h b/net/nfc/llcp/llcp.h
index fdb2d24..0d62366 100644
--- a/net/nfc/llcp/llcp.h
+++ b/net/nfc/llcp/llcp.h
@@ -64,6 +64,9 @@ struct nfc_llcp_local {
 	u32 target_idx;
 	u8 rf_mode;
 	u8 comm_mode;
+	u8 lto;
+	u8 rw;
+	__be16 miux;
 	unsigned long local_wks;      /* Well known services */
 	unsigned long local_sdp;      /* Local services  */
 	unsigned long local_sap; /* Local SAPs, not available for discovery */
@@ -124,6 +127,13 @@ struct nfc_llcp_sock {
 	struct sock *parent;
 };
 
+struct nfc_llcp_ui_cb {
+	__u8 dsap;
+	__u8 ssap;
+};
+
+#define nfc_llcp_ui_skb_cb(__skb) ((struct nfc_llcp_ui_cb *)&((__skb)->cb[0]))
+
 #define nfc_llcp_sock(sk) ((struct nfc_llcp_sock *) (sk))
 #define nfc_llcp_dev(sk)  (nfc_llcp_sock((sk))->dev)
 
@@ -209,10 +219,13 @@ int nfc_llcp_disconnect(struct nfc_llcp_sock *sock);
 int nfc_llcp_send_symm(struct nfc_dev *dev);
 int nfc_llcp_send_connect(struct nfc_llcp_sock *sock);
 int nfc_llcp_send_cc(struct nfc_llcp_sock *sock);
+int nfc_llcp_send_snl(struct nfc_llcp_local *local, u8 tid, u8 sap);
 int nfc_llcp_send_dm(struct nfc_llcp_local *local, u8 ssap, u8 dsap, u8 reason);
 int nfc_llcp_send_disconnect(struct nfc_llcp_sock *sock);
 int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock,
 			  struct msghdr *msg, size_t len);
+int nfc_llcp_send_ui_frame(struct nfc_llcp_sock *sock, u8 ssap, u8 dsap,
+			   struct msghdr *msg, size_t len);
 int nfc_llcp_send_rr(struct nfc_llcp_sock *sock);
 
 /* Socket API */
diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c
index 63e4cdc..0fa1e92 100644
--- a/net/nfc/llcp/sock.c
+++ b/net/nfc/llcp/sock.c
@@ -205,8 +205,8 @@ static int llcp_sock_listen(struct socket *sock, int backlog)
 
 	lock_sock(sk);
 
-	if ((sock->type != SOCK_SEQPACKET && sock->type != SOCK_STREAM)
-	    || sk->sk_state != LLCP_BOUND) {
+	if ((sock->type != SOCK_SEQPACKET && sock->type != SOCK_STREAM) ||
+	    sk->sk_state != LLCP_BOUND) {
 		ret = -EBADFD;
 		goto error;
 	}
@@ -608,6 +608,25 @@ static int llcp_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 
 	lock_sock(sk);
 
+	if (sk->sk_type == SOCK_DGRAM) {
+		struct sockaddr_nfc_llcp *addr =
+			(struct sockaddr_nfc_llcp *)msg->msg_name;
+
+		if (msg->msg_namelen < sizeof(*addr)) {
+			release_sock(sk);
+
+			pr_err("Invalid socket address length %d\n",
+			       msg->msg_namelen);
+
+			return -EINVAL;
+		}
+
+		release_sock(sk);
+
+		return nfc_llcp_send_ui_frame(llcp_sock, addr->dsap, addr->ssap,
+					      msg, len);
+	}
+
 	if (sk->sk_state != LLCP_CONNECTED) {
 		release_sock(sk);
 		return -ENOTCONN;
@@ -663,11 +682,28 @@ static int llcp_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 		return -EFAULT;
 	}
 
+	if (sk->sk_type == SOCK_DGRAM && msg->msg_name) {
+		struct nfc_llcp_ui_cb *ui_cb = nfc_llcp_ui_skb_cb(skb);
+		struct sockaddr_nfc_llcp sockaddr;
+
+		pr_debug("Datagram socket %d %d\n", ui_cb->dsap, ui_cb->ssap);
+
+		sockaddr.sa_family = AF_NFC;
+		sockaddr.nfc_protocol = NFC_PROTO_NFC_DEP;
+		sockaddr.dsap = ui_cb->dsap;
+		sockaddr.ssap = ui_cb->ssap;
+
+		memcpy(msg->msg_name, &sockaddr, sizeof(sockaddr));
+		msg->msg_namelen = sizeof(sockaddr);
+	}
+
 	/* Mark read part of skb as used */
 	if (!(flags & MSG_PEEK)) {
 
 		/* SOCK_STREAM: re-queue skb if it contains unreceived data */
-		if (sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_RAW) {
+		if (sk->sk_type == SOCK_STREAM ||
+		    sk->sk_type == SOCK_DGRAM ||
+		    sk->sk_type == SOCK_RAW) {
 			skb_pull(skb, copied);
 			if (skb->len) {
 				skb_queue_head(&sk->sk_receive_queue, skb);
diff --git a/net/nfc/nci/Kconfig b/net/nfc/nci/Kconfig
index decdc49..6d69b5f 100644
--- a/net/nfc/nci/Kconfig
+++ b/net/nfc/nci/Kconfig
@@ -1,6 +1,6 @@
 config NFC_NCI
-	depends on NFC && EXPERIMENTAL
-	tristate "NCI protocol support (EXPERIMENTAL)"
+	depends on NFC
+	tristate "NCI protocol support"
 	default n
 	help
 	  NCI (NFC Controller Interface) is a communication protocol between
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index acf9abb..5f98dc1 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -205,10 +205,10 @@ static void nci_rf_discover_req(struct nci_dev *ndev, unsigned long opt)
 	cmd.num_disc_configs = 0;
 
 	if ((cmd.num_disc_configs < NCI_MAX_NUM_RF_CONFIGS) &&
-	    (protocols & NFC_PROTO_JEWEL_MASK
-	     || protocols & NFC_PROTO_MIFARE_MASK
-	     || protocols & NFC_PROTO_ISO14443_MASK
-	     || protocols & NFC_PROTO_NFC_DEP_MASK)) {
+	    (protocols & NFC_PROTO_JEWEL_MASK ||
+	     protocols & NFC_PROTO_MIFARE_MASK ||
+	     protocols & NFC_PROTO_ISO14443_MASK ||
+	     protocols & NFC_PROTO_NFC_DEP_MASK)) {
 		cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode =
 			NCI_NFC_A_PASSIVE_POLL_MODE;
 		cmd.disc_configs[cmd.num_disc_configs].frequency = 1;
@@ -224,8 +224,8 @@ static void nci_rf_discover_req(struct nci_dev *ndev, unsigned long opt)
 	}
 
 	if ((cmd.num_disc_configs < NCI_MAX_NUM_RF_CONFIGS) &&
-	    (protocols & NFC_PROTO_FELICA_MASK
-	     || protocols & NFC_PROTO_NFC_DEP_MASK)) {
+	    (protocols & NFC_PROTO_FELICA_MASK ||
+	     protocols & NFC_PROTO_NFC_DEP_MASK)) {
 		cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode =
 			NCI_NFC_F_PASSIVE_POLL_MODE;
 		cmd.disc_configs[cmd.num_disc_configs].frequency = 1;
@@ -414,13 +414,13 @@ static int nci_set_local_general_bytes(struct nfc_dev *nfc_dev)
 	struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
 	struct nci_set_config_param param;
 	__u8 local_gb[NFC_MAX_GT_LEN];
-	int i, rc = 0;
+	int i;
 
 	param.val = nfc_get_local_general_bytes(nfc_dev, &param.len);
 	if ((param.val == NULL) || (param.len == 0))
-		return rc;
+		return 0;
 
-	if (param.len > NCI_MAX_PARAM_LEN)
+	if (param.len > NFC_MAX_GT_LEN)
 		return -EINVAL;
 
 	for (i = 0; i < param.len; i++)
@@ -429,10 +429,8 @@ static int nci_set_local_general_bytes(struct nfc_dev *nfc_dev)
 	param.id = NCI_PN_ATR_REQ_GEN_BYTES;
 	param.val = local_gb;
 
-	rc = nci_request(ndev, nci_set_config_req, (unsigned long)&param,
-			 msecs_to_jiffies(NCI_SET_CONFIG_TIMEOUT));
-
-	return rc;
+	return nci_request(ndev, nci_set_config_req, (unsigned long)&param,
+			   msecs_to_jiffies(NCI_SET_CONFIG_TIMEOUT));
 }
 
 static int nci_start_poll(struct nfc_dev *nfc_dev,
@@ -579,7 +577,6 @@ static void nci_deactivate_target(struct nfc_dev *nfc_dev,
 	}
 }
 
-
 static int nci_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
 			   __u8 comm_mode, __u8 *gb, size_t gb_len)
 {
@@ -806,8 +803,8 @@ int nci_recv_frame(struct sk_buff *skb)
 
 	pr_debug("len %d\n", skb->len);
 
-	if (!ndev || (!test_bit(NCI_UP, &ndev->flags)
-		      && !test_bit(NCI_INIT, &ndev->flags))) {
+	if (!ndev || (!test_bit(NCI_UP, &ndev->flags) &&
+	    !test_bit(NCI_INIT, &ndev->flags))) {
 		kfree_skb(skb);
 		return -ENXIO;
 	}
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index c1b5285..3568ae1 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -29,6 +29,8 @@
 
 #include "nfc.h"
 
+#include "llcp/llcp.h"
+
 static struct genl_multicast_group nfc_genl_event_mcgrp = {
 	.name = NFC_GENL_MCAST_EVENT_NAME,
 };
@@ -364,7 +366,8 @@ static int nfc_genl_send_device(struct sk_buff *msg, struct nfc_dev *dev,
 	if (nla_put_string(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev)) ||
 	    nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx) ||
 	    nla_put_u32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols) ||
-	    nla_put_u8(msg, NFC_ATTR_DEVICE_POWERED, dev->dev_up))
+	    nla_put_u8(msg, NFC_ATTR_DEVICE_POWERED, dev->dev_up) ||
+	    nla_put_u8(msg, NFC_ATTR_RF_MODE, dev->rf_mode))
 		goto nla_put_failure;
 
 	return genlmsg_end(msg, hdr);
@@ -590,7 +593,7 @@ static int nfc_genl_start_poll(struct sk_buff *skb, struct genl_info *info)
 	if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
 	    ((!info->attrs[NFC_ATTR_IM_PROTOCOLS] &&
 	      !info->attrs[NFC_ATTR_PROTOCOLS]) &&
-	     !info->attrs[NFC_ATTR_TM_PROTOCOLS]))
+	      !info->attrs[NFC_ATTR_TM_PROTOCOLS]))
 		return -EINVAL;
 
 	idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
@@ -715,6 +718,146 @@ static int nfc_genl_dep_link_down(struct sk_buff *skb, struct genl_info *info)
 	return rc;
 }
 
+static int nfc_genl_send_params(struct sk_buff *msg,
+				struct nfc_llcp_local *local,
+				u32 portid, u32 seq)
+{
+	void *hdr;
+
+	hdr = genlmsg_put(msg, portid, seq, &nfc_genl_family, 0,
+			  NFC_CMD_LLC_GET_PARAMS);
+	if (!hdr)
+		return -EMSGSIZE;
+
+	if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, local->dev->idx) ||
+	    nla_put_u8(msg, NFC_ATTR_LLC_PARAM_LTO, local->lto) ||
+	    nla_put_u8(msg, NFC_ATTR_LLC_PARAM_RW, local->rw) ||
+	    nla_put_u16(msg, NFC_ATTR_LLC_PARAM_MIUX, be16_to_cpu(local->miux)))
+		goto nla_put_failure;
+
+	return genlmsg_end(msg, hdr);
+
+nla_put_failure:
+
+	genlmsg_cancel(msg, hdr);
+	return -EMSGSIZE;
+}
+
+static int nfc_genl_llc_get_params(struct sk_buff *skb, struct genl_info *info)
+{
+	struct nfc_dev *dev;
+	struct nfc_llcp_local *local;
+	int rc = 0;
+	struct sk_buff *msg = NULL;
+	u32 idx;
+
+	if (!info->attrs[NFC_ATTR_DEVICE_INDEX])
+		return -EINVAL;
+
+	idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
+
+	dev = nfc_get_device(idx);
+	if (!dev)
+		return -ENODEV;
+
+	device_lock(&dev->dev);
+
+	local = nfc_llcp_find_local(dev);
+	if (!local) {
+		rc = -ENODEV;
+		goto exit;
+	}
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!msg) {
+		rc = -ENOMEM;
+		goto exit;
+	}
+
+	rc = nfc_genl_send_params(msg, local, info->snd_portid, info->snd_seq);
+
+exit:
+	device_unlock(&dev->dev);
+
+	nfc_put_device(dev);
+
+	if (rc < 0) {
+		if (msg)
+			nlmsg_free(msg);
+
+		return rc;
+	}
+
+	return genlmsg_reply(msg, info);
+}
+
+static int nfc_genl_llc_set_params(struct sk_buff *skb, struct genl_info *info)
+{
+	struct nfc_dev *dev;
+	struct nfc_llcp_local *local;
+	u8 rw = 0;
+	u16 miux = 0;
+	u32 idx;
+	int rc = 0;
+
+	if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
+	    (!info->attrs[NFC_ATTR_LLC_PARAM_LTO] &&
+	     !info->attrs[NFC_ATTR_LLC_PARAM_RW] &&
+	     !info->attrs[NFC_ATTR_LLC_PARAM_MIUX]))
+		return -EINVAL;
+
+	if (info->attrs[NFC_ATTR_LLC_PARAM_RW]) {
+		rw = nla_get_u8(info->attrs[NFC_ATTR_LLC_PARAM_RW]);
+
+		if (rw > LLCP_MAX_RW)
+			return -EINVAL;
+	}
+
+	if (info->attrs[NFC_ATTR_LLC_PARAM_MIUX]) {
+		miux = nla_get_u16(info->attrs[NFC_ATTR_LLC_PARAM_MIUX]);
+
+		if (miux > LLCP_MAX_MIUX)
+			return -EINVAL;
+	}
+
+	idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
+
+	dev = nfc_get_device(idx);
+	if (!dev)
+		return -ENODEV;
+
+	device_lock(&dev->dev);
+
+	local = nfc_llcp_find_local(dev);
+	if (!local) {
+		nfc_put_device(dev);
+		rc = -ENODEV;
+		goto exit;
+	}
+
+	if (info->attrs[NFC_ATTR_LLC_PARAM_LTO]) {
+		if (dev->dep_link_up) {
+			rc = -EINPROGRESS;
+			goto exit;
+		}
+
+		local->lto = nla_get_u8(info->attrs[NFC_ATTR_LLC_PARAM_LTO]);
+	}
+
+	if (info->attrs[NFC_ATTR_LLC_PARAM_RW])
+		local->rw = rw;
+
+	if (info->attrs[NFC_ATTR_LLC_PARAM_MIUX])
+		local->miux = cpu_to_be16(miux);
+
+exit:
+	device_unlock(&dev->dev);
+
+	nfc_put_device(dev);
+
+	return rc;
+}
+
 static struct genl_ops nfc_genl_ops[] = {
 	{
 		.cmd = NFC_CMD_GET_DEVICE,
@@ -759,6 +902,16 @@ static struct genl_ops nfc_genl_ops[] = {
 		.done = nfc_genl_dump_targets_done,
 		.policy = nfc_genl_policy,
 	},
+	{
+		.cmd = NFC_CMD_LLC_GET_PARAMS,
+		.doit = nfc_genl_llc_get_params,
+		.policy = nfc_genl_policy,
+	},
+	{
+		.cmd = NFC_CMD_LLC_SET_PARAMS,
+		.doit = nfc_genl_llc_set_params,
+		.policy = nfc_genl_policy,
+	},
 };
 
 
diff --git a/net/nfc/nfc.h b/net/nfc/nfc.h
index c5e42b79..87d914d 100644
--- a/net/nfc/nfc.h
+++ b/net/nfc/nfc.h
@@ -56,6 +56,7 @@ void nfc_llcp_unregister_device(struct nfc_dev *dev);
 int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len);
 u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len);
 int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb);
+struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev);
 int __init nfc_llcp_init(void);
 void nfc_llcp_exit(void);
 
@@ -97,6 +98,11 @@ static inline int nfc_llcp_data_received(struct nfc_dev *dev,
 	return 0;
 }
 
+static inline struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev)
+{
+	return NULL;
+}
+
 static inline int nfc_llcp_init(void)
 {
 	return 0;
diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c
index 8b8a6a2..313bf1b 100644
--- a/net/nfc/rawsock.c
+++ b/net/nfc/rawsock.c
@@ -256,7 +256,6 @@ static int rawsock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	return rc ? : copied;
 }
 
-
 static const struct proto_ops rawsock_ops = {
 	.family         = PF_NFC,
 	.owner          = THIS_MODULE,
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 0811447..ac2defe 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -28,6 +28,7 @@
 #include <linux/if_arp.h>
 #include <linux/if_vlan.h>
 #include <net/ip.h>
+#include <net/ipv6.h>
 #include <net/checksum.h>
 #include <net/dsfield.h>
 
@@ -162,6 +163,53 @@ static void set_ip_addr(struct sk_buff *skb, struct iphdr *nh,
 	*addr = new_addr;
 }
 
+static void update_ipv6_checksum(struct sk_buff *skb, u8 l4_proto,
+				 __be32 addr[4], const __be32 new_addr[4])
+{
+	int transport_len = skb->len - skb_transport_offset(skb);
+
+	if (l4_proto == IPPROTO_TCP) {
+		if (likely(transport_len >= sizeof(struct tcphdr)))
+			inet_proto_csum_replace16(&tcp_hdr(skb)->check, skb,
+						  addr, new_addr, 1);
+	} else if (l4_proto == IPPROTO_UDP) {
+		if (likely(transport_len >= sizeof(struct udphdr))) {
+			struct udphdr *uh = udp_hdr(skb);
+
+			if (uh->check || skb->ip_summed == CHECKSUM_PARTIAL) {
+				inet_proto_csum_replace16(&uh->check, skb,
+							  addr, new_addr, 1);
+				if (!uh->check)
+					uh->check = CSUM_MANGLED_0;
+			}
+		}
+	}
+}
+
+static void set_ipv6_addr(struct sk_buff *skb, u8 l4_proto,
+			  __be32 addr[4], const __be32 new_addr[4],
+			  bool recalculate_csum)
+{
+	if (recalculate_csum)
+		update_ipv6_checksum(skb, l4_proto, addr, new_addr);
+
+	skb->rxhash = 0;
+	memcpy(addr, new_addr, sizeof(__be32[4]));
+}
+
+static void set_ipv6_tc(struct ipv6hdr *nh, u8 tc)
+{
+	nh->priority = tc >> 4;
+	nh->flow_lbl[0] = (nh->flow_lbl[0] & 0x0F) | ((tc & 0x0F) << 4);
+}
+
+static void set_ipv6_fl(struct ipv6hdr *nh, u32 fl)
+{
+	nh->flow_lbl[0] = (nh->flow_lbl[0] & 0xF0) | (fl & 0x000F0000) >> 16;
+	nh->flow_lbl[1] = (fl & 0x0000FF00) >> 8;
+	nh->flow_lbl[2] = fl & 0x000000FF;
+}
+
 static void set_ip_ttl(struct sk_buff *skb, struct iphdr *nh, u8 new_ttl)
 {
 	csum_replace2(&nh->check, htons(nh->ttl << 8), htons(new_ttl << 8));
@@ -195,6 +243,47 @@ static int set_ipv4(struct sk_buff *skb, const struct ovs_key_ipv4 *ipv4_key)
 	return 0;
 }
 
+static int set_ipv6(struct sk_buff *skb, const struct ovs_key_ipv6 *ipv6_key)
+{
+	struct ipv6hdr *nh;
+	int err;
+	__be32 *saddr;
+	__be32 *daddr;
+
+	err = make_writable(skb, skb_network_offset(skb) +
+			    sizeof(struct ipv6hdr));
+	if (unlikely(err))
+		return err;
+
+	nh = ipv6_hdr(skb);
+	saddr = (__be32 *)&nh->saddr;
+	daddr = (__be32 *)&nh->daddr;
+
+	if (memcmp(ipv6_key->ipv6_src, saddr, sizeof(ipv6_key->ipv6_src)))
+		set_ipv6_addr(skb, ipv6_key->ipv6_proto, saddr,
+			      ipv6_key->ipv6_src, true);
+
+	if (memcmp(ipv6_key->ipv6_dst, daddr, sizeof(ipv6_key->ipv6_dst))) {
+		unsigned int offset = 0;
+		int flags = IP6_FH_F_SKIP_RH;
+		bool recalc_csum = true;
+
+		if (ipv6_ext_hdr(nh->nexthdr))
+			recalc_csum = ipv6_find_hdr(skb, &offset,
+						    NEXTHDR_ROUTING, NULL,
+						    &flags) != NEXTHDR_ROUTING;
+
+		set_ipv6_addr(skb, ipv6_key->ipv6_proto, daddr,
+			      ipv6_key->ipv6_dst, recalc_csum);
+	}
+
+	set_ipv6_tc(nh, ipv6_key->ipv6_tclass);
+	set_ipv6_fl(nh, ntohl(ipv6_key->ipv6_label));
+	nh->hop_limit = ipv6_key->ipv6_hlimit;
+
+	return 0;
+}
+
 /* Must follow make_writable() since that can move the skb data. */
 static void set_tp_port(struct sk_buff *skb, __be16 *port,
 			 __be16 new_port, __sum16 *check)
@@ -339,6 +428,10 @@ static int execute_set_action(struct sk_buff *skb,
 		skb->priority = nla_get_u32(nested_attr);
 		break;
 
+	case OVS_KEY_ATTR_SKB_MARK:
+		skb->mark = nla_get_u32(nested_attr);
+		break;
+
 	case OVS_KEY_ATTR_ETHERNET:
 		err = set_eth_addr(skb, nla_data(nested_attr));
 		break;
@@ -347,6 +440,10 @@ static int execute_set_action(struct sk_buff *skb,
 		err = set_ipv4(skb, nla_data(nested_attr));
 		break;
 
+	case OVS_KEY_ATTR_IPV6:
+		err = set_ipv6(skb, nla_data(nested_attr));
+		break;
+
 	case OVS_KEY_ATTR_TCP:
 		err = set_tcp(skb, nla_data(nested_attr));
 		break;
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 4c4b62c..f996db3 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -208,7 +208,7 @@ void ovs_dp_process_received_packet(struct vport *p, struct sk_buff *skb)
 	int error;
 	int key_len;
 
-	stats = per_cpu_ptr(dp->stats_percpu, smp_processor_id());
+	stats = this_cpu_ptr(dp->stats_percpu);
 
 	/* Extract flow from 'skb' into 'key'. */
 	error = ovs_flow_extract(skb, p->port_no, &key, &key_len);
@@ -282,7 +282,7 @@ int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb,
 	return 0;
 
 err:
-	stats = per_cpu_ptr(dp->stats_percpu, smp_processor_id());
+	stats = this_cpu_ptr(dp->stats_percpu);
 
 	u64_stats_update_begin(&stats->sync);
 	stats->n_lost++;
@@ -479,8 +479,10 @@ static int validate_set(const struct nlattr *a,
 
 	switch (key_type) {
 	const struct ovs_key_ipv4 *ipv4_key;
+	const struct ovs_key_ipv6 *ipv6_key;
 
 	case OVS_KEY_ATTR_PRIORITY:
+	case OVS_KEY_ATTR_SKB_MARK:
 	case OVS_KEY_ATTR_ETHERNET:
 		break;
 
@@ -500,6 +502,25 @@ static int validate_set(const struct nlattr *a,
 
 		break;
 
+	case OVS_KEY_ATTR_IPV6:
+		if (flow_key->eth.type != htons(ETH_P_IPV6))
+			return -EINVAL;
+
+		if (!flow_key->ip.proto)
+			return -EINVAL;
+
+		ipv6_key = nla_data(ovs_key);
+		if (ipv6_key->ipv6_proto != flow_key->ip.proto)
+			return -EINVAL;
+
+		if (ipv6_key->ipv6_frag != flow_key->ip.frag)
+			return -EINVAL;
+
+		if (ntohl(ipv6_key->ipv6_label) & 0xFFF00000)
+			return -EINVAL;
+
+		break;
+
 	case OVS_KEY_ATTR_TCP:
 		if (flow_key->ip.proto != IPPROTO_TCP)
 			return -EINVAL;
@@ -675,6 +696,7 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
 		goto err_flow_free;
 
 	err = ovs_flow_metadata_from_nlattrs(&flow->key.phy.priority,
+					     &flow->key.phy.skb_mark,
 					     &flow->key.phy.in_port,
 					     a[OVS_PACKET_ATTR_KEY]);
 	if (err)
@@ -694,6 +716,7 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
 
 	OVS_CB(packet)->flow = flow;
 	packet->priority = flow->key.phy.priority;
+	packet->mark = flow->key.phy.skb_mark;
 
 	rcu_read_lock();
 	dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 733cbf4..c3294ce 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -604,6 +604,7 @@ int ovs_flow_extract(struct sk_buff *skb, u16 in_port, struct sw_flow_key *key,
 
 	key->phy.priority = skb->priority;
 	key->phy.in_port = in_port;
+	key->phy.skb_mark = skb->mark;
 
 	skb_reset_mac_header(skb);
 
@@ -689,7 +690,8 @@ int ovs_flow_extract(struct sk_buff *skb, u16 in_port, struct sw_flow_key *key,
 			}
 		}
 
-	} else if (key->eth.type == htons(ETH_P_ARP) && arphdr_ok(skb)) {
+	} else if ((key->eth.type == htons(ETH_P_ARP) ||
+		   key->eth.type == htons(ETH_P_RARP)) && arphdr_ok(skb)) {
 		struct arp_eth_header *arp;
 
 		arp = (struct arp_eth_header *)skb_network_header(skb);
@@ -802,6 +804,7 @@ const int ovs_key_lens[OVS_KEY_ATTR_MAX + 1] = {
 	[OVS_KEY_ATTR_ENCAP] = -1,
 	[OVS_KEY_ATTR_PRIORITY] = sizeof(u32),
 	[OVS_KEY_ATTR_IN_PORT] = sizeof(u32),
+	[OVS_KEY_ATTR_SKB_MARK] = sizeof(u32),
 	[OVS_KEY_ATTR_ETHERNET] = sizeof(struct ovs_key_ethernet),
 	[OVS_KEY_ATTR_VLAN] = sizeof(__be16),
 	[OVS_KEY_ATTR_ETHERTYPE] = sizeof(__be16),
@@ -987,6 +990,10 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
 	} else {
 		swkey->phy.in_port = DP_MAX_PORTS;
 	}
+	if (attrs & (1 << OVS_KEY_ATTR_SKB_MARK)) {
+		swkey->phy.skb_mark = nla_get_u32(a[OVS_KEY_ATTR_SKB_MARK]);
+		attrs &= ~(1 << OVS_KEY_ATTR_SKB_MARK);
+	}
 
 	/* Data attributes. */
 	if (!(attrs & (1 << OVS_KEY_ATTR_ETHERNET)))
@@ -1086,7 +1093,8 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
 			if (err)
 				return err;
 		}
-	} else if (swkey->eth.type == htons(ETH_P_ARP)) {
+	} else if (swkey->eth.type == htons(ETH_P_ARP) ||
+		   swkey->eth.type == htons(ETH_P_RARP)) {
 		const struct ovs_key_arp *arp_key;
 
 		if (!(attrs & (1 << OVS_KEY_ATTR_ARP)))
@@ -1113,6 +1121,8 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
 
 /**
  * ovs_flow_metadata_from_nlattrs - parses Netlink attributes into a flow key.
+ * @priority: receives the skb priority
+ * @mark: receives the skb mark
  * @in_port: receives the extracted input port.
  * @key: Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink attribute
  * sequence.
@@ -1122,7 +1132,7 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
  * get the metadata, that is, the parts of the flow key that cannot be
  * extracted from the packet itself.
  */
-int ovs_flow_metadata_from_nlattrs(u32 *priority, u16 *in_port,
+int ovs_flow_metadata_from_nlattrs(u32 *priority, u32 *mark, u16 *in_port,
 			       const struct nlattr *attr)
 {
 	const struct nlattr *nla;
@@ -1130,6 +1140,7 @@ int ovs_flow_metadata_from_nlattrs(u32 *priority, u16 *in_port,
 
 	*in_port = DP_MAX_PORTS;
 	*priority = 0;
+	*mark = 0;
 
 	nla_for_each_nested(nla, attr, rem) {
 		int type = nla_type(nla);
@@ -1148,6 +1159,10 @@ int ovs_flow_metadata_from_nlattrs(u32 *priority, u16 *in_port,
 					return -EINVAL;
 				*in_port = nla_get_u32(nla);
 				break;
+
+			case OVS_KEY_ATTR_SKB_MARK:
+				*mark = nla_get_u32(nla);
+				break;
 			}
 		}
 	}
@@ -1169,6 +1184,10 @@ int ovs_flow_to_nlattrs(const struct sw_flow_key *swkey, struct sk_buff *skb)
 	    nla_put_u32(skb, OVS_KEY_ATTR_IN_PORT, swkey->phy.in_port))
 		goto nla_put_failure;
 
+	if (swkey->phy.skb_mark &&
+	    nla_put_u32(skb, OVS_KEY_ATTR_SKB_MARK, swkey->phy.skb_mark))
+		goto nla_put_failure;
+
 	nla = nla_reserve(skb, OVS_KEY_ATTR_ETHERNET, sizeof(*eth_key));
 	if (!nla)
 		goto nla_put_failure;
@@ -1222,7 +1241,8 @@ int ovs_flow_to_nlattrs(const struct sw_flow_key *swkey, struct sk_buff *skb)
 		ipv6_key->ipv6_tclass = swkey->ip.tos;
 		ipv6_key->ipv6_hlimit = swkey->ip.ttl;
 		ipv6_key->ipv6_frag = swkey->ip.frag;
-	} else if (swkey->eth.type == htons(ETH_P_ARP)) {
+	} else if (swkey->eth.type == htons(ETH_P_ARP) ||
+		   swkey->eth.type == htons(ETH_P_RARP)) {
 		struct ovs_key_arp *arp_key;
 
 		nla = nla_reserve(skb, OVS_KEY_ATTR_ARP, sizeof(*arp_key));
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index 14a324e..a7bb60f 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -43,6 +43,7 @@ struct sw_flow_actions {
 struct sw_flow_key {
 	struct {
 		u32	priority;	/* Packet QoS priority. */
+		u32	skb_mark;	/* SKB mark. */
 		u16	in_port;	/* Input switch port (or DP_MAX_PORTS). */
 	} phy;
 	struct {
@@ -144,6 +145,7 @@ u64 ovs_flow_used_time(unsigned long flow_jiffies);
  *                         ------  ---  ------  -----
  *  OVS_KEY_ATTR_PRIORITY      4    --     4      8
  *  OVS_KEY_ATTR_IN_PORT       4    --     4      8
+ *  OVS_KEY_ATTR_SKB_MARK      4    --     4      8
  *  OVS_KEY_ATTR_ETHERNET     12    --     4     16
  *  OVS_KEY_ATTR_ETHERTYPE     2     2     4      8  (outer VLAN ethertype)
  *  OVS_KEY_ATTR_8021Q         4    --     4      8
@@ -153,14 +155,14 @@ u64 ovs_flow_used_time(unsigned long flow_jiffies);
  *  OVS_KEY_ATTR_ICMPV6        2     2     4      8
  *  OVS_KEY_ATTR_ND           28    --     4     32
  *  -------------------------------------------------
- *  total                                       144
+ *  total                                       152
  */
-#define FLOW_BUFSIZE 144
+#define FLOW_BUFSIZE 152
 
 int ovs_flow_to_nlattrs(const struct sw_flow_key *, struct sk_buff *);
 int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
 		      const struct nlattr *);
-int ovs_flow_metadata_from_nlattrs(u32 *priority, u16 *in_port,
+int ovs_flow_metadata_from_nlattrs(u32 *priority, u32 *mark, u16 *in_port,
 			       const struct nlattr *);
 
 #define MAX_ACTIONS_BUFSIZE    (16 * 1024)
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index a903348..a9327e2 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -114,6 +114,15 @@ error:
 	return ERR_PTR(err);
 }
 
+static void free_port_rcu(struct rcu_head *rcu)
+{
+	struct netdev_vport *netdev_vport = container_of(rcu,
+					struct netdev_vport, rcu);
+
+	dev_put(netdev_vport->dev);
+	ovs_vport_free(vport_from_priv(netdev_vport));
+}
+
 static void netdev_destroy(struct vport *vport)
 {
 	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
@@ -122,10 +131,7 @@ static void netdev_destroy(struct vport *vport)
 	netdev_rx_handler_unregister(netdev_vport->dev);
 	dev_set_promiscuity(netdev_vport->dev, -1);
 
-	synchronize_rcu();
-
-	dev_put(netdev_vport->dev);
-	ovs_vport_free(vport);
+	call_rcu(&netdev_vport->rcu, free_port_rcu);
 }
 
 const char *ovs_netdev_get_name(const struct vport *vport)
diff --git a/net/openvswitch/vport-netdev.h b/net/openvswitch/vport-netdev.h
index f7072a2..6478079 100644
--- a/net/openvswitch/vport-netdev.h
+++ b/net/openvswitch/vport-netdev.h
@@ -20,12 +20,15 @@
 #define VPORT_NETDEV_H 1
 
 #include <linux/netdevice.h>
+#include <linux/rcupdate.h>
 
 #include "vport.h"
 
 struct vport *ovs_netdev_get_vport(struct net_device *dev);
 
 struct netdev_vport {
+	struct rcu_head rcu;
+
 	struct net_device *dev;
 };
 
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 03779e8..70af0be 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -333,8 +333,7 @@ void ovs_vport_receive(struct vport *vport, struct sk_buff *skb)
 {
 	struct vport_percpu_stats *stats;
 
-	stats = per_cpu_ptr(vport->percpu_stats, smp_processor_id());
-
+	stats = this_cpu_ptr(vport->percpu_stats);
 	u64_stats_update_begin(&stats->sync);
 	stats->rx_packets++;
 	stats->rx_bytes += skb->len;
@@ -359,7 +358,7 @@ int ovs_vport_send(struct vport *vport, struct sk_buff *skb)
 	if (likely(sent)) {
 		struct vport_percpu_stats *stats;
 
-		stats = per_cpu_ptr(vport->percpu_stats, smp_processor_id());
+		stats = this_cpu_ptr(vport->percpu_stats);
 
 		u64_stats_update_begin(&stats->sync);
 		stats->tx_packets++;
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 94060ed..e639645 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1881,7 +1881,35 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb,
 	skb_reserve(skb, hlen);
 	skb_reset_network_header(skb);
 
-	data = ph.raw + po->tp_hdrlen - sizeof(struct sockaddr_ll);
+	if (po->tp_tx_has_off) {
+		int off_min, off_max, off;
+		off_min = po->tp_hdrlen - sizeof(struct sockaddr_ll);
+		off_max = po->tx_ring.frame_size - tp_len;
+		if (sock->type == SOCK_DGRAM) {
+			switch (po->tp_version) {
+			case TPACKET_V2:
+				off = ph.h2->tp_net;
+				break;
+			default:
+				off = ph.h1->tp_net;
+				break;
+			}
+		} else {
+			switch (po->tp_version) {
+			case TPACKET_V2:
+				off = ph.h2->tp_mac;
+				break;
+			default:
+				off = ph.h1->tp_mac;
+				break;
+			}
+		}
+		if (unlikely((off < off_min) || (off_max < off)))
+			return -EINVAL;
+		data = ph.raw + off;
+	} else {
+		data = ph.raw + po->tp_hdrlen - sizeof(struct sockaddr_ll);
+	}
 	to_write = tp_len;
 
 	if (sock->type == SOCK_DGRAM) {
@@ -1907,7 +1935,6 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb,
 		to_write -= dev->hard_header_len;
 	}
 
-	err = -EFAULT;
 	offset = offset_in_page(data);
 	len_max = PAGE_SIZE - offset;
 	len = ((to_write > len_max) ? len_max : to_write);
@@ -1957,7 +1984,6 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 
 	mutex_lock(&po->pg_vec_lock);
 
-	err = -EBUSY;
 	if (saddr == NULL) {
 		dev = po->prot_hook.dev;
 		proto	= po->num;
@@ -2478,7 +2504,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol,
 	__be16 proto = (__force __be16)protocol; /* weird, but documented */
 	int err;
 
-	if (!capable(CAP_NET_RAW))
+	if (!ns_capable(net->user_ns, CAP_NET_RAW))
 		return -EPERM;
 	if (sock->type != SOCK_DGRAM && sock->type != SOCK_RAW &&
 	    sock->type != SOCK_PACKET)
@@ -3111,6 +3137,19 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
 
 		return fanout_add(sk, val & 0xffff, val >> 16);
 	}
+	case PACKET_TX_HAS_OFF:
+	{
+		unsigned int val;
+
+		if (optlen != sizeof(val))
+			return -EINVAL;
+		if (po->rx_ring.pg_vec || po->tx_ring.pg_vec)
+			return -EBUSY;
+		if (copy_from_user(&val, optval, sizeof(val)))
+			return -EFAULT;
+		po->tp_tx_has_off = !!val;
+		return 0;
+	}
 	default:
 		return -ENOPROTOOPT;
 	}
@@ -3202,6 +3241,9 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
 			((u32)po->fanout->type << 16)) :
 		       0);
 		break;
+	case PACKET_TX_HAS_OFF:
+		val = po->tp_tx_has_off;
+		break;
 	default:
 		return -ENOPROTOOPT;
 	}
diff --git a/net/packet/internal.h b/net/packet/internal.h
index 44945f6..e84cab8 100644
--- a/net/packet/internal.h
+++ b/net/packet/internal.h
@@ -109,6 +109,7 @@ struct packet_sock {
 	unsigned int		tp_hdrlen;
 	unsigned int		tp_reserve;
 	unsigned int		tp_loss:1;
+	unsigned int		tp_tx_has_off:1;
 	unsigned int		tp_tstamp;
 	struct packet_type	prot_hook ____cacheline_aligned_in_smp;
 };
diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c
index 83a8389..0193630 100644
--- a/net/phonet/pn_netlink.c
+++ b/net/phonet/pn_netlink.c
@@ -70,6 +70,9 @@ static int addr_doit(struct sk_buff *skb, struct nlmsghdr *nlh, void *attr)
 	int err;
 	u8 pnaddr;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
@@ -230,6 +233,9 @@ static int route_doit(struct sk_buff *skb, struct nlmsghdr *nlh, void *attr)
 	int err;
 	u8 dst;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
diff --git a/net/rds/ib.h b/net/rds/ib.h
index 8d2b3d5..7280ab8 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -50,7 +50,7 @@ struct rds_ib_cache_head {
 };
 
 struct rds_ib_refill_cache {
-	struct rds_ib_cache_head *percpu;
+	struct rds_ib_cache_head __percpu *percpu;
 	struct list_head	 *xfer;
 	struct list_head	 *ready;
 };
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index 8d19491..8c5bc85 100644
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -418,20 +418,21 @@ static void rds_ib_recv_cache_put(struct list_head *new_item,
 				 struct rds_ib_refill_cache *cache)
 {
 	unsigned long flags;
-	struct rds_ib_cache_head *chp;
 	struct list_head *old;
+	struct list_head __percpu *chpfirst;
 
 	local_irq_save(flags);
 
-	chp = per_cpu_ptr(cache->percpu, smp_processor_id());
-	if (!chp->first)
+	chpfirst = __this_cpu_read(cache->percpu->first);
+	if (!chpfirst)
 		INIT_LIST_HEAD(new_item);
 	else /* put on front */
-		list_add_tail(new_item, chp->first);
-	chp->first = new_item;
-	chp->count++;
+		list_add_tail(new_item, chpfirst);
 
-	if (chp->count < RDS_IB_RECYCLE_BATCH_COUNT)
+	__this_cpu_write(chpfirst, new_item);
+	__this_cpu_inc(cache->percpu->count);
+
+	if (__this_cpu_read(cache->percpu->count) < RDS_IB_RECYCLE_BATCH_COUNT)
 		goto end;
 
 	/*
@@ -443,12 +444,13 @@ static void rds_ib_recv_cache_put(struct list_head *new_item,
 	do {
 		old = xchg(&cache->xfer, NULL);
 		if (old)
-			list_splice_entire_tail(old, chp->first);
-		old = cmpxchg(&cache->xfer, NULL, chp->first);
+			list_splice_entire_tail(old, chpfirst);
+		old = cmpxchg(&cache->xfer, NULL, chpfirst);
 	} while (old);
 
-	chp->first = NULL;
-	chp->count = 0;
+
+	__this_cpu_write(chpfirst, NULL);
+	__this_cpu_write(cache->percpu->count, 0);
 end:
 	local_irq_restore(flags);
 }
diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c
index 865adb6..78fc093 100644
--- a/net/rfkill/rfkill-gpio.c
+++ b/net/rfkill/rfkill-gpio.c
@@ -213,7 +213,7 @@ static int rfkill_gpio_remove(struct platform_device *pdev)
 
 static struct platform_driver rfkill_gpio_driver = {
 	.probe = rfkill_gpio_probe,
-	.remove = __devexit_p(rfkill_gpio_remove),
+	.remove = rfkill_gpio_remove,
 	.driver = {
 		   .name = "rfkill_gpio",
 		   .owner = THIS_MODULE,
diff --git a/net/rfkill/rfkill-regulator.c b/net/rfkill/rfkill-regulator.c
index 11da301..4b5ab21 100644
--- a/net/rfkill/rfkill-regulator.c
+++ b/net/rfkill/rfkill-regulator.c
@@ -55,7 +55,7 @@ struct rfkill_ops rfkill_regulator_ops = {
 	.set_block = rfkill_regulator_set_block,
 };
 
-static int __devinit rfkill_regulator_probe(struct platform_device *pdev)
+static int rfkill_regulator_probe(struct platform_device *pdev)
 {
 	struct rfkill_regulator_platform_data *pdata = pdev->dev.platform_data;
 	struct rfkill_regulator_data *rfkill_data;
@@ -122,7 +122,7 @@ out:
 	return ret;
 }
 
-static int __devexit rfkill_regulator_remove(struct platform_device *pdev)
+static int rfkill_regulator_remove(struct platform_device *pdev)
 {
 	struct rfkill_regulator_data *rfkill_data = platform_get_drvdata(pdev);
 	struct rfkill *rf_kill = rfkill_data->rf_kill;
@@ -137,7 +137,7 @@ static int __devexit rfkill_regulator_remove(struct platform_device *pdev)
 
 static struct platform_driver rfkill_regulator_driver = {
 	.probe = rfkill_regulator_probe,
-	.remove = __devexit_p(rfkill_regulator_remove),
+	.remove = rfkill_regulator_remove,
 	.driver = {
 		.name = "rfkill-regulator",
 		.owner = THIS_MODULE,
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index 62fb51f..235e01a 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -509,7 +509,7 @@ config NET_EMATCH_TEXT
 
 config NET_EMATCH_CANID
 	tristate "CAN Identifier"
-	depends on NET_EMATCH && CAN
+	depends on NET_EMATCH && (CAN=y || CAN=m)
 	---help---
 	  Say Y here if you want to be able to classify CAN frames based
 	  on CAN Identifier.
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 102761d..65d240c 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -987,6 +987,9 @@ static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
 	u32 portid = skb ? NETLINK_CB(skb).portid : 0;
 	int ret = 0, ovr = 0;
 
+	if ((n->nlmsg_type != RTM_GETACTION) && !capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	ret = nlmsg_parse(n, sizeof(struct tcamsg), tca, TCA_ACT_MAX, NULL);
 	if (ret < 0)
 		return ret;
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 7ae0289..ff55ed6 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -139,6 +139,8 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
 	int err;
 	int tp_created = 0;
 
+	if ((n->nlmsg_type != RTM_GETTFILTER) && !capable(CAP_NET_ADMIN))
+		return -EPERM;
 replay:
 	t = nlmsg_data(n);
 	protocol = TC_H_MIN(t->tcm_info);
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index 31f06b6..6db7855 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -17,6 +17,7 @@
 #include <linux/skbuff.h>
 #include <linux/cgroup.h>
 #include <linux/rcupdate.h>
+#include <linux/fdtable.h>
 #include <net/rtnetlink.h>
 #include <net/pkt_cls.h>
 #include <net/sock.h>
@@ -57,6 +58,28 @@ static void cgrp_css_free(struct cgroup *cgrp)
 	kfree(cgrp_cls_state(cgrp));
 }
 
+static int update_classid(const void *v, struct file *file, unsigned n)
+{
+	int err;
+	struct socket *sock = sock_from_file(file, &err);
+	if (sock)
+		sock->sk->sk_classid = (u32)(unsigned long)v;
+	return 0;
+}
+
+static void cgrp_attach(struct cgroup *cgrp, struct cgroup_taskset *tset)
+{
+	struct task_struct *p;
+	void *v;
+
+	cgroup_taskset_for_each(p, cgrp, tset) {
+		task_lock(p);
+		v = (void *)(unsigned long)task_cls_classid(p);
+		iterate_fd(p->files, 0, update_classid, v);
+		task_unlock(p);
+	}
+}
+
 static u64 read_classid(struct cgroup *cgrp, struct cftype *cft)
 {
 	return cgrp_cls_state(cgrp)->classid;
@@ -82,6 +105,7 @@ struct cgroup_subsys net_cls_subsys = {
 	.css_alloc	= cgrp_css_alloc,
 	.css_online	= cgrp_css_online,
 	.css_free	= cgrp_css_free,
+	.attach		= cgrp_attach,
 	.subsys_id	= net_cls_subsys_id,
 	.base_cftypes	= ss_files,
 	.module		= THIS_MODULE,
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index a18d975..d84f7e7 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -495,16 +495,15 @@ EXPORT_SYMBOL(qdisc_watchdog_init);
 
 void qdisc_watchdog_schedule(struct qdisc_watchdog *wd, psched_time_t expires)
 {
-	ktime_t time;
-
 	if (test_bit(__QDISC_STATE_DEACTIVATED,
 		     &qdisc_root_sleeping(wd->qdisc)->state))
 		return;
 
 	qdisc_throttled(wd->qdisc);
-	time = ktime_set(0, 0);
-	time = ktime_add_ns(time, PSCHED_TICKS2NS(expires));
-	hrtimer_start(&wd->timer, time, HRTIMER_MODE_ABS);
+
+	hrtimer_start(&wd->timer,
+		      ns_to_ktime(PSCHED_TICKS2NS(expires)),
+		      HRTIMER_MODE_ABS);
 }
 EXPORT_SYMBOL(qdisc_watchdog_schedule);
 
@@ -834,6 +833,8 @@ qdisc_create(struct net_device *dev, struct netdev_queue *dev_queue,
 				goto err_out3;
 		}
 		lockdep_set_class(qdisc_lock(sch), &qdisc_tx_lock);
+		if (!netif_is_multiqueue(dev))
+			sch->flags |= TCQ_F_ONETXQUEUE;
 	}
 
 	sch->handle = handle;
@@ -981,6 +982,9 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
 	struct Qdisc *p = NULL;
 	int err;
 
+	if ((n->nlmsg_type != RTM_GETQDISC) && !capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	dev = __dev_get_by_index(net, tcm->tcm_ifindex);
 	if (!dev)
 		return -ENODEV;
@@ -1044,6 +1048,9 @@ static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
 	struct Qdisc *q, *p;
 	int err;
 
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 replay:
 	/* Reinit, just in case something touches this. */
 	tcm = nlmsg_data(n);
@@ -1380,6 +1387,9 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
 	u32 qid = TC_H_MAJ(clid);
 	int err;
 
+	if ((n->nlmsg_type != RTM_GETTCLASS) && !capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	dev = __dev_get_by_index(net, tcm->tcm_ifindex);
 	if (!dev)
 		return -ENODEV;
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 564b9fc..0e19948 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -509,8 +509,7 @@ static void cbq_ovl_delay(struct cbq_class *cl)
 			cl->cpriority = TC_CBQ_MAXPRIO;
 			q->pmask |= (1<<TC_CBQ_MAXPRIO);
 
-			expires = ktime_set(0, 0);
-			expires = ktime_add_ns(expires, PSCHED_TICKS2NS(sched));
+			expires = ns_to_ktime(PSCHED_TICKS2NS(sched));
 			if (hrtimer_try_to_cancel(&q->delay_timer) &&
 			    ktime_to_ns(ktime_sub(
 					hrtimer_get_expires(&q->delay_timer),
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index aefc150..5d81a44 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -53,20 +53,19 @@ static inline int dev_requeue_skb(struct sk_buff *skb, struct Qdisc *q)
 static inline struct sk_buff *dequeue_skb(struct Qdisc *q)
 {
 	struct sk_buff *skb = q->gso_skb;
+	const struct netdev_queue *txq = q->dev_queue;
 
 	if (unlikely(skb)) {
-		struct net_device *dev = qdisc_dev(q);
-		struct netdev_queue *txq;
-
 		/* check the reason of requeuing without tx lock first */
-		txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
+		txq = netdev_get_tx_queue(txq->dev, skb_get_queue_mapping(skb));
 		if (!netif_xmit_frozen_or_stopped(txq)) {
 			q->gso_skb = NULL;
 			q->q.qlen--;
 		} else
 			skb = NULL;
 	} else {
-		skb = q->dequeue(q);
+		if (!(q->flags & TCQ_F_ONETXQUEUE) || !netif_xmit_frozen_or_stopped(txq))
+			skb = q->dequeue(q);
 	}
 
 	return skb;
@@ -686,6 +685,8 @@ static void attach_one_default_qdisc(struct net_device *dev,
 			netdev_info(dev, "activation failed\n");
 			return;
 		}
+		if (!netif_is_multiqueue(dev))
+			qdisc->flags |= TCQ_F_ONETXQUEUE;
 	}
 	dev_queue->qdisc_sleeping = qdisc;
 }
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 9d75b77..d2922c0 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -71,6 +71,12 @@ enum htb_cmode {
 	HTB_CAN_SEND		/* class can send */
 };
 
+struct htb_rate_cfg {
+	u64 rate_bps;
+	u32 mult;
+	u32 shift;
+};
+
 /* interior & leaf nodes; props specific to leaves are marked L: */
 struct htb_class {
 	struct Qdisc_class_common common;
@@ -118,11 +124,11 @@ struct htb_class {
 	int filter_cnt;
 
 	/* token bucket parameters */
-	struct qdisc_rate_table *rate;	/* rate table of the class itself */
-	struct qdisc_rate_table *ceil;	/* ceiling rate (limits borrows too) */
-	long buffer, cbuffer;	/* token bucket depth/rate */
+	struct htb_rate_cfg rate;
+	struct htb_rate_cfg ceil;
+	s64 buffer, cbuffer;	/* token bucket depth/rate */
 	psched_tdiff_t mbuffer;	/* max wait time */
-	long tokens, ctokens;	/* current number of tokens */
+	s64 tokens, ctokens;	/* current number of tokens */
 	psched_time_t t_c;	/* checkpoint time */
 };
 
@@ -162,6 +168,45 @@ struct htb_sched {
 	struct work_struct work;
 };
 
+static u64 l2t_ns(struct htb_rate_cfg *r, unsigned int len)
+{
+	return ((u64)len * r->mult) >> r->shift;
+}
+
+static void htb_precompute_ratedata(struct htb_rate_cfg *r)
+{
+	u64 factor;
+	u64 mult;
+	int shift;
+
+	r->shift = 0;
+	r->mult = 1;
+	/*
+	 * Calibrate mult, shift so that token counting is accurate
+	 * for smallest packet size (64 bytes).  Token (time in ns) is
+	 * computed as (bytes * 8) * NSEC_PER_SEC / rate_bps.  It will
+	 * work as long as the smallest packet transfer time can be
+	 * accurately represented in nanosec.
+	 */
+	if (r->rate_bps > 0) {
+		/*
+		 * Higher shift gives better accuracy.  Find the largest
+		 * shift such that mult fits in 32 bits.
+		 */
+		for (shift = 0; shift < 16; shift++) {
+			r->shift = shift;
+			factor = 8LLU * NSEC_PER_SEC * (1 << r->shift);
+			mult = div64_u64(factor, r->rate_bps);
+			if (mult > UINT_MAX)
+				break;
+		}
+
+		r->shift = shift - 1;
+		factor = 8LLU * NSEC_PER_SEC * (1 << r->shift);
+		r->mult = div64_u64(factor, r->rate_bps);
+	}
+}
+
 /* find class in global hash table using given handle */
 static inline struct htb_class *htb_find(u32 handle, struct Qdisc *sch)
 {
@@ -273,7 +318,7 @@ static void htb_add_to_id_tree(struct rb_root *root,
  * already in the queue.
  */
 static void htb_add_to_wait_tree(struct htb_sched *q,
-				 struct htb_class *cl, long delay)
+				 struct htb_class *cl, s64 delay)
 {
 	struct rb_node **p = &q->wait_pq[cl->level].rb_node, *parent = NULL;
 
@@ -441,14 +486,14 @@ static void htb_deactivate_prios(struct htb_sched *q, struct htb_class *cl)
 		htb_remove_class_from_row(q, cl, mask);
 }
 
-static inline long htb_lowater(const struct htb_class *cl)
+static inline s64 htb_lowater(const struct htb_class *cl)
 {
 	if (htb_hysteresis)
 		return cl->cmode != HTB_CANT_SEND ? -cl->cbuffer : 0;
 	else
 		return 0;
 }
-static inline long htb_hiwater(const struct htb_class *cl)
+static inline s64 htb_hiwater(const struct htb_class *cl)
 {
 	if (htb_hysteresis)
 		return cl->cmode == HTB_CAN_SEND ? -cl->buffer : 0;
@@ -469,9 +514,9 @@ static inline long htb_hiwater(const struct htb_class *cl)
  * mode transitions per time unit. The speed gain is about 1/6.
  */
 static inline enum htb_cmode
-htb_class_mode(struct htb_class *cl, long *diff)
+htb_class_mode(struct htb_class *cl, s64 *diff)
 {
-	long toks;
+	s64 toks;
 
 	if ((toks = (cl->ctokens + *diff)) < htb_lowater(cl)) {
 		*diff = -toks;
@@ -495,7 +540,7 @@ htb_class_mode(struct htb_class *cl, long *diff)
  * to mode other than HTB_CAN_SEND (see htb_add_to_wait_tree).
  */
 static void
-htb_change_class_mode(struct htb_sched *q, struct htb_class *cl, long *diff)
+htb_change_class_mode(struct htb_sched *q, struct htb_class *cl, s64 *diff)
 {
 	enum htb_cmode new_mode = htb_class_mode(cl, diff);
 
@@ -581,26 +626,26 @@ static int htb_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 	return NET_XMIT_SUCCESS;
 }
 
-static inline void htb_accnt_tokens(struct htb_class *cl, int bytes, long diff)
+static inline void htb_accnt_tokens(struct htb_class *cl, int bytes, s64 diff)
 {
-	long toks = diff + cl->tokens;
+	s64 toks = diff + cl->tokens;
 
 	if (toks > cl->buffer)
 		toks = cl->buffer;
-	toks -= (long) qdisc_l2t(cl->rate, bytes);
+	toks -= (s64) l2t_ns(&cl->rate, bytes);
 	if (toks <= -cl->mbuffer)
 		toks = 1 - cl->mbuffer;
 
 	cl->tokens = toks;
 }
 
-static inline void htb_accnt_ctokens(struct htb_class *cl, int bytes, long diff)
+static inline void htb_accnt_ctokens(struct htb_class *cl, int bytes, s64 diff)
 {
-	long toks = diff + cl->ctokens;
+	s64 toks = diff + cl->ctokens;
 
 	if (toks > cl->cbuffer)
 		toks = cl->cbuffer;
-	toks -= (long) qdisc_l2t(cl->ceil, bytes);
+	toks -= (s64) l2t_ns(&cl->ceil, bytes);
 	if (toks <= -cl->mbuffer)
 		toks = 1 - cl->mbuffer;
 
@@ -623,10 +668,10 @@ static void htb_charge_class(struct htb_sched *q, struct htb_class *cl,
 {
 	int bytes = qdisc_pkt_len(skb);
 	enum htb_cmode old_mode;
-	long diff;
+	s64 diff;
 
 	while (cl) {
-		diff = psched_tdiff_bounded(q->now, cl->t_c, cl->mbuffer);
+		diff = min_t(s64, q->now - cl->t_c, cl->mbuffer);
 		if (cl->level >= level) {
 			if (cl->level == level)
 				cl->xstats.lends++;
@@ -673,7 +718,7 @@ static psched_time_t htb_do_events(struct htb_sched *q, int level,
 	unsigned long stop_at = start + 2;
 	while (time_before(jiffies, stop_at)) {
 		struct htb_class *cl;
-		long diff;
+		s64 diff;
 		struct rb_node *p = rb_first(&q->wait_pq[level]);
 
 		if (!p)
@@ -684,7 +729,7 @@ static psched_time_t htb_do_events(struct htb_sched *q, int level,
 			return cl->pq_key;
 
 		htb_safe_rb_erase(p, q->wait_pq + level);
-		diff = psched_tdiff_bounded(q->now, cl->t_c, cl->mbuffer);
+		diff = min_t(s64, q->now - cl->t_c, cl->mbuffer);
 		htb_change_class_mode(q, cl, &diff);
 		if (cl->cmode != HTB_CAN_SEND)
 			htb_add_to_wait_tree(q, cl, diff);
@@ -871,10 +916,10 @@ ok:
 
 	if (!sch->q.qlen)
 		goto fin;
-	q->now = psched_get_time();
+	q->now = ktime_to_ns(ktime_get());
 	start_at = jiffies;
 
-	next_event = q->now + 5 * PSCHED_TICKS_PER_SEC;
+	next_event = q->now + 5 * NSEC_PER_SEC;
 
 	for (level = 0; level < TC_HTB_MAXDEPTH; level++) {
 		/* common case optimization - skip event handler quickly */
@@ -884,7 +929,7 @@ ok:
 		if (q->now >= q->near_ev_cache[level]) {
 			event = htb_do_events(q, level, start_at);
 			if (!event)
-				event = q->now + PSCHED_TICKS_PER_SEC;
+				event = q->now + NSEC_PER_SEC;
 			q->near_ev_cache[level] = event;
 		} else
 			event = q->near_ev_cache[level];
@@ -903,10 +948,17 @@ ok:
 		}
 	}
 	sch->qstats.overlimits++;
-	if (likely(next_event > q->now))
-		qdisc_watchdog_schedule(&q->watchdog, next_event);
-	else
+	if (likely(next_event > q->now)) {
+		if (!test_bit(__QDISC_STATE_DEACTIVATED,
+			      &qdisc_root_sleeping(q->watchdog.qdisc)->state)) {
+			ktime_t time = ns_to_ktime(next_event);
+			qdisc_throttled(q->watchdog.qdisc);
+			hrtimer_start(&q->watchdog.timer, time,
+				      HRTIMER_MODE_ABS);
+		}
+	} else {
 		schedule_work(&q->work);
+	}
 fin:
 	return skb;
 }
@@ -1082,9 +1134,9 @@ static int htb_dump_class(struct Qdisc *sch, unsigned long arg,
 
 	memset(&opt, 0, sizeof(opt));
 
-	opt.rate = cl->rate->rate;
+	opt.rate.rate = cl->rate.rate_bps >> 3;
 	opt.buffer = cl->buffer;
-	opt.ceil = cl->ceil->rate;
+	opt.ceil.rate = cl->ceil.rate_bps >> 3;
 	opt.cbuffer = cl->cbuffer;
 	opt.quantum = cl->quantum;
 	opt.prio = cl->prio;
@@ -1203,9 +1255,6 @@ static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
 		qdisc_destroy(cl->un.leaf.q);
 	}
 	gen_kill_estimator(&cl->bstats, &cl->rate_est);
-	qdisc_put_rtab(cl->rate);
-	qdisc_put_rtab(cl->ceil);
-
 	tcf_destroy_chain(&cl->filter_list);
 	kfree(cl);
 }
@@ -1307,7 +1356,6 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
 	struct htb_sched *q = qdisc_priv(sch);
 	struct htb_class *cl = (struct htb_class *)*arg, *parent;
 	struct nlattr *opt = tca[TCA_OPTIONS];
-	struct qdisc_rate_table *rtab = NULL, *ctab = NULL;
 	struct nlattr *tb[__TCA_HTB_MAX];
 	struct tc_htb_opt *hopt;
 
@@ -1326,10 +1374,7 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
 	parent = parentid == TC_H_ROOT ? NULL : htb_find(parentid, sch);
 
 	hopt = nla_data(tb[TCA_HTB_PARMS]);
-
-	rtab = qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB]);
-	ctab = qdisc_get_rtab(&hopt->ceil, tb[TCA_HTB_CTAB]);
-	if (!rtab || !ctab)
+	if (!hopt->rate.rate || !hopt->ceil.rate)
 		goto failure;
 
 	if (!cl) {		/* new class */
@@ -1439,7 +1484,7 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
 	 * is really leaf before changing cl->un.leaf !
 	 */
 	if (!cl->level) {
-		cl->quantum = rtab->rate.rate / q->rate2quantum;
+		cl->quantum = hopt->rate.rate / q->rate2quantum;
 		if (!hopt->quantum && cl->quantum < 1000) {
 			pr_warning(
 			       "HTB: quantum of class %X is small. Consider r2q change.\n",
@@ -1460,12 +1505,16 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
 
 	cl->buffer = hopt->buffer;
 	cl->cbuffer = hopt->cbuffer;
-	if (cl->rate)
-		qdisc_put_rtab(cl->rate);
-	cl->rate = rtab;
-	if (cl->ceil)
-		qdisc_put_rtab(cl->ceil);
-	cl->ceil = ctab;
+
+	cl->rate.rate_bps = (u64)hopt->rate.rate << 3;
+	cl->ceil.rate_bps = (u64)hopt->ceil.rate << 3;
+
+	htb_precompute_ratedata(&cl->rate);
+	htb_precompute_ratedata(&cl->ceil);
+
+	cl->buffer = hopt->buffer << PSCHED_SHIFT;
+	cl->cbuffer = hopt->buffer << PSCHED_SHIFT;
+
 	sch_tree_unlock(sch);
 
 	qdisc_class_hash_grow(sch, &q->clhash);
@@ -1474,10 +1523,6 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
 	return 0;
 
 failure:
-	if (rtab)
-		qdisc_put_rtab(rtab);
-	if (ctab)
-		qdisc_put_rtab(ctab);
 	return err;
 }
 
diff --git a/net/sched/sch_mq.c b/net/sched/sch_mq.c
index 0a4b2f9..5da78a1 100644
--- a/net/sched/sch_mq.c
+++ b/net/sched/sch_mq.c
@@ -63,6 +63,7 @@ static int mq_init(struct Qdisc *sch, struct nlattr *opt)
 		if (qdisc == NULL)
 			goto err;
 		priv->qdiscs[ntx] = qdisc;
+		qdisc->flags |= TCQ_F_ONETXQUEUE;
 	}
 
 	sch->flags |= TCQ_F_MQROOT;
@@ -150,7 +151,8 @@ static int mq_graft(struct Qdisc *sch, unsigned long cl, struct Qdisc *new,
 		dev_deactivate(dev);
 
 	*old = dev_graft_qdisc(dev_queue, new);
-
+	if (new)
+		new->flags |= TCQ_F_ONETXQUEUE;
 	if (dev->flags & IFF_UP)
 		dev_activate(dev);
 	return 0;
diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c
index d1831ca..accec33 100644
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -132,6 +132,7 @@ static int mqprio_init(struct Qdisc *sch, struct nlattr *opt)
 			goto err;
 		}
 		priv->qdiscs[i] = qdisc;
+		qdisc->flags |= TCQ_F_ONETXQUEUE;
 	}
 
 	/* If the mqprio options indicate that hardware should own
@@ -205,6 +206,9 @@ static int mqprio_graft(struct Qdisc *sch, unsigned long cl, struct Qdisc *new,
 
 	*old = dev_graft_qdisc(dev_queue, new);
 
+	if (new)
+		new->flags |= TCQ_F_ONETXQUEUE;
+
 	if (dev->flags & IFF_UP)
 		dev_activate(dev);
 
diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c
index 9687fa1..6ed3765 100644
--- a/net/sched/sch_qfq.c
+++ b/net/sched/sch_qfq.c
@@ -1,7 +1,8 @@
 /*
- * net/sched/sch_qfq.c         Quick Fair Queueing Scheduler.
+ * net/sched/sch_qfq.c         Quick Fair Queueing Plus Scheduler.
  *
  * Copyright (c) 2009 Fabio Checconi, Luigi Rizzo, and Paolo Valente.
+ * Copyright (c) 2012 Paolo Valente.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -19,12 +20,18 @@
 #include <net/pkt_cls.h>
 
 
-/*  Quick Fair Queueing
-    ===================
+/*  Quick Fair Queueing Plus
+    ========================
 
     Sources:
 
-    Fabio Checconi, Luigi Rizzo, and Paolo Valente: "QFQ: Efficient
+    [1] Paolo Valente,
+    "Reducing the Execution Time of Fair-Queueing Schedulers."
+    http://algo.ing.unimo.it/people/paolo/agg-sched/agg-sched.pdf
+
+    Sources for QFQ:
+
+    [2] Fabio Checconi, Luigi Rizzo, and Paolo Valente: "QFQ: Efficient
     Packet Scheduling with Tight Bandwidth Distribution Guarantees."
 
     See also:
@@ -33,6 +40,20 @@
 
 /*
 
+  QFQ+ divides classes into aggregates of at most MAX_AGG_CLASSES
+  classes. Each aggregate is timestamped with a virtual start time S
+  and a virtual finish time F, and scheduled according to its
+  timestamps. S and F are computed as a function of a system virtual
+  time function V. The classes within each aggregate are instead
+  scheduled with DRR.
+
+  To speed up operations, QFQ+ divides also aggregates into a limited
+  number of groups. Which group a class belongs to depends on the
+  ratio between the maximum packet length for the class and the weight
+  of the class. Groups have their own S and F. In the end, QFQ+
+  schedules groups, then aggregates within groups, then classes within
+  aggregates. See [1] and [2] for a full description.
+
   Virtual time computations.
 
   S, F and V are all computed in fixed point arithmetic with
@@ -76,27 +97,28 @@
 #define QFQ_MAX_SLOTS	32
 
 /*
- * Shifts used for class<->group mapping.  We allow class weights that are
- * in the range [1, 2^MAX_WSHIFT], and we try to map each class i to the
+ * Shifts used for aggregate<->group mapping.  We allow class weights that are
+ * in the range [1, 2^MAX_WSHIFT], and we try to map each aggregate i to the
  * group with the smallest index that can support the L_i / r_i configured
- * for the class.
+ * for the classes in the aggregate.
  *
  * grp->index is the index of the group; and grp->slot_shift
  * is the shift for the corresponding (scaled) sigma_i.
  */
 #define QFQ_MAX_INDEX		24
-#define QFQ_MAX_WSHIFT		12
+#define QFQ_MAX_WSHIFT		10
 
-#define	QFQ_MAX_WEIGHT		(1<<QFQ_MAX_WSHIFT)
-#define QFQ_MAX_WSUM		(16*QFQ_MAX_WEIGHT)
+#define	QFQ_MAX_WEIGHT		(1<<QFQ_MAX_WSHIFT) /* see qfq_slot_insert */
+#define QFQ_MAX_WSUM		(64*QFQ_MAX_WEIGHT)
 
 #define FRAC_BITS		30	/* fixed point arithmetic */
 #define ONE_FP			(1UL << FRAC_BITS)
 #define IWSUM			(ONE_FP/QFQ_MAX_WSUM)
 
 #define QFQ_MTU_SHIFT		16	/* to support TSO/GSO */
-#define QFQ_MIN_SLOT_SHIFT	(FRAC_BITS + QFQ_MTU_SHIFT - QFQ_MAX_INDEX)
-#define QFQ_MIN_LMAX		256	/* min possible lmax for a class */
+#define QFQ_MIN_LMAX		512	/* see qfq_slot_insert */
+
+#define QFQ_MAX_AGG_CLASSES	8 /* max num classes per aggregate allowed */
 
 /*
  * Possible group states.  These values are used as indexes for the bitmaps
@@ -106,6 +128,8 @@ enum qfq_state { ER, IR, EB, IB, QFQ_MAX_STATE };
 
 struct qfq_group;
 
+struct qfq_aggregate;
+
 struct qfq_class {
 	struct Qdisc_class_common common;
 
@@ -116,7 +140,12 @@ struct qfq_class {
 	struct gnet_stats_queue qstats;
 	struct gnet_stats_rate_est rate_est;
 	struct Qdisc *qdisc;
+	struct list_head alist;		/* Link for active-classes list. */
+	struct qfq_aggregate *agg;	/* Parent aggregate. */
+	int deficit;			/* DRR deficit counter. */
+};
 
+struct qfq_aggregate {
 	struct hlist_node next;	/* Link for the slot list. */
 	u64 S, F;		/* flow timestamps (exact) */
 
@@ -127,8 +156,18 @@ struct qfq_class {
 	struct qfq_group *grp;
 
 	/* these are copied from the flowset. */
-	u32	inv_w;		/* ONE_FP/weight */
-	u32	lmax;		/* Max packet size for this flow. */
+	u32	class_weight; /* Weight of each class in this aggregate. */
+	/* Max pkt size for the classes in this aggregate, DRR quantum. */
+	int	lmax;
+
+	u32	inv_w;	    /* ONE_FP/(sum of weights of classes in aggr.). */
+	u32	budgetmax;  /* Max budget for this aggregate. */
+	u32	initial_budget, budget;     /* Initial and current budget. */
+
+	int		  num_classes;	/* Number of classes in this aggr. */
+	struct list_head  active;	/* DRR queue of active classes. */
+
+	struct hlist_node nonfull_next;	/* See nonfull_aggs in qfq_sched. */
 };
 
 struct qfq_group {
@@ -138,7 +177,7 @@ struct qfq_group {
 	unsigned int front;		/* Index of the front slot. */
 	unsigned long full_slots;	/* non-empty slots */
 
-	/* Array of RR lists of active classes. */
+	/* Array of RR lists of active aggregates. */
 	struct hlist_head slots[QFQ_MAX_SLOTS];
 };
 
@@ -146,13 +185,28 @@ struct qfq_sched {
 	struct tcf_proto *filter_list;
 	struct Qdisc_class_hash clhash;
 
-	u64		V;		/* Precise virtual time. */
-	u32		wsum;		/* weight sum */
+	u64			oldV, V;	/* Precise virtual times. */
+	struct qfq_aggregate	*in_serv_agg;   /* Aggregate being served. */
+	u32			num_active_agg; /* Num. of active aggregates */
+	u32			wsum;		/* weight sum */
 
 	unsigned long bitmaps[QFQ_MAX_STATE];	    /* Group bitmaps. */
 	struct qfq_group groups[QFQ_MAX_INDEX + 1]; /* The groups. */
+	u32 min_slot_shift;	/* Index of the group-0 bit in the bitmaps. */
+
+	u32 max_agg_classes;		/* Max number of classes per aggr. */
+	struct hlist_head nonfull_aggs; /* Aggs with room for more classes. */
 };
 
+/*
+ * Possible reasons why the timestamps of an aggregate are updated
+ * enqueue: the aggregate switches from idle to active and must scheduled
+ *	    for service
+ * requeue: the aggregate finishes its budget, so it stops being served and
+ *	    must be rescheduled for service
+ */
+enum update_reason {enqueue, requeue};
+
 static struct qfq_class *qfq_find_class(struct Qdisc *sch, u32 classid)
 {
 	struct qfq_sched *q = qdisc_priv(sch);
@@ -182,18 +236,18 @@ static const struct nla_policy qfq_policy[TCA_QFQ_MAX + 1] = {
  * index = log_2(maxlen/weight) but we need to apply the scaling.
  * This is used only once at flow creation.
  */
-static int qfq_calc_index(u32 inv_w, unsigned int maxlen)
+static int qfq_calc_index(u32 inv_w, unsigned int maxlen, u32 min_slot_shift)
 {
 	u64 slot_size = (u64)maxlen * inv_w;
 	unsigned long size_map;
 	int index = 0;
 
-	size_map = slot_size >> QFQ_MIN_SLOT_SHIFT;
+	size_map = slot_size >> min_slot_shift;
 	if (!size_map)
 		goto out;
 
 	index = __fls(size_map) + 1;	/* basically a log_2 */
-	index -= !(slot_size - (1ULL << (index + QFQ_MIN_SLOT_SHIFT - 1)));
+	index -= !(slot_size - (1ULL << (index + min_slot_shift - 1)));
 
 	if (index < 0)
 		index = 0;
@@ -204,66 +258,150 @@ out:
 	return index;
 }
 
-/* Length of the next packet (0 if the queue is empty). */
-static unsigned int qdisc_peek_len(struct Qdisc *sch)
+static void qfq_deactivate_agg(struct qfq_sched *, struct qfq_aggregate *);
+static void qfq_activate_agg(struct qfq_sched *, struct qfq_aggregate *,
+			     enum update_reason);
+
+static void qfq_init_agg(struct qfq_sched *q, struct qfq_aggregate *agg,
+			 u32 lmax, u32 weight)
 {
-	struct sk_buff *skb;
+	INIT_LIST_HEAD(&agg->active);
+	hlist_add_head(&agg->nonfull_next, &q->nonfull_aggs);
+
+	agg->lmax = lmax;
+	agg->class_weight = weight;
+}
+
+static struct qfq_aggregate *qfq_find_agg(struct qfq_sched *q,
+					  u32 lmax, u32 weight)
+{
+	struct qfq_aggregate *agg;
+	struct hlist_node *n;
+
+	hlist_for_each_entry(agg, n, &q->nonfull_aggs, nonfull_next)
+		if (agg->lmax == lmax && agg->class_weight == weight)
+			return agg;
+
+	return NULL;
+}
+
 
-	skb = sch->ops->peek(sch);
-	return skb ? qdisc_pkt_len(skb) : 0;
+/* Update aggregate as a function of the new number of classes. */
+static void qfq_update_agg(struct qfq_sched *q, struct qfq_aggregate *agg,
+			   int new_num_classes)
+{
+	u32 new_agg_weight;
+
+	if (new_num_classes == q->max_agg_classes)
+		hlist_del_init(&agg->nonfull_next);
+
+	if (agg->num_classes > new_num_classes &&
+	    new_num_classes == q->max_agg_classes - 1) /* agg no more full */
+		hlist_add_head(&agg->nonfull_next, &q->nonfull_aggs);
+
+	agg->budgetmax = new_num_classes * agg->lmax;
+	new_agg_weight = agg->class_weight * new_num_classes;
+	agg->inv_w = ONE_FP/new_agg_weight;
+
+	if (agg->grp == NULL) {
+		int i = qfq_calc_index(agg->inv_w, agg->budgetmax,
+				       q->min_slot_shift);
+		agg->grp = &q->groups[i];
+	}
+
+	q->wsum +=
+		(int) agg->class_weight * (new_num_classes - agg->num_classes);
+
+	agg->num_classes = new_num_classes;
+}
+
+/* Add class to aggregate. */
+static void qfq_add_to_agg(struct qfq_sched *q,
+			   struct qfq_aggregate *agg,
+			   struct qfq_class *cl)
+{
+	cl->agg = agg;
+
+	qfq_update_agg(q, agg, agg->num_classes+1);
+	if (cl->qdisc->q.qlen > 0) { /* adding an active class */
+		list_add_tail(&cl->alist, &agg->active);
+		if (list_first_entry(&agg->active, struct qfq_class, alist) ==
+		    cl && q->in_serv_agg != agg) /* agg was inactive */
+			qfq_activate_agg(q, agg, enqueue); /* schedule agg */
+	}
 }
 
-static void qfq_deactivate_class(struct qfq_sched *, struct qfq_class *);
-static void qfq_activate_class(struct qfq_sched *q, struct qfq_class *cl,
-			       unsigned int len);
+static struct qfq_aggregate *qfq_choose_next_agg(struct qfq_sched *);
 
-static void qfq_update_class_params(struct qfq_sched *q, struct qfq_class *cl,
-				    u32 lmax, u32 inv_w, int delta_w)
+static void qfq_destroy_agg(struct qfq_sched *q, struct qfq_aggregate *agg)
 {
-	int i;
+	if (!hlist_unhashed(&agg->nonfull_next))
+		hlist_del_init(&agg->nonfull_next);
+	if (q->in_serv_agg == agg)
+		q->in_serv_agg = qfq_choose_next_agg(q);
+	kfree(agg);
+}
 
-	/* update qfq-specific data */
-	cl->lmax = lmax;
-	cl->inv_w = inv_w;
-	i = qfq_calc_index(cl->inv_w, cl->lmax);
+/* Deschedule class from within its parent aggregate. */
+static void qfq_deactivate_class(struct qfq_sched *q, struct qfq_class *cl)
+{
+	struct qfq_aggregate *agg = cl->agg;
 
-	cl->grp = &q->groups[i];
 
-	q->wsum += delta_w;
+	list_del(&cl->alist); /* remove from RR queue of the aggregate */
+	if (list_empty(&agg->active)) /* agg is now inactive */
+		qfq_deactivate_agg(q, agg);
 }
 
-static void qfq_update_reactivate_class(struct qfq_sched *q,
-					struct qfq_class *cl,
-					u32 inv_w, u32 lmax, int delta_w)
+/* Remove class from its parent aggregate. */
+static void qfq_rm_from_agg(struct qfq_sched *q, struct qfq_class *cl)
 {
-	bool need_reactivation = false;
-	int i = qfq_calc_index(inv_w, lmax);
+	struct qfq_aggregate *agg = cl->agg;
 
-	if (&q->groups[i] != cl->grp && cl->qdisc->q.qlen > 0) {
-		/*
-		 * shift cl->F back, to not charge the
-		 * class for the not-yet-served head
-		 * packet
-		 */
-		cl->F = cl->S;
-		/* remove class from its slot in the old group */
-		qfq_deactivate_class(q, cl);
-		need_reactivation = true;
+	cl->agg = NULL;
+	if (agg->num_classes == 1) { /* agg being emptied, destroy it */
+		qfq_destroy_agg(q, agg);
+		return;
 	}
+	qfq_update_agg(q, agg, agg->num_classes-1);
+}
 
-	qfq_update_class_params(q, cl, lmax, inv_w, delta_w);
+/* Deschedule class and remove it from its parent aggregate. */
+static void qfq_deact_rm_from_agg(struct qfq_sched *q, struct qfq_class *cl)
+{
+	if (cl->qdisc->q.qlen > 0) /* class is active */
+		qfq_deactivate_class(q, cl);
 
-	if (need_reactivation) /* activate in new group */
-		qfq_activate_class(q, cl, qdisc_peek_len(cl->qdisc));
+	qfq_rm_from_agg(q, cl);
 }
 
+/* Move class to a new aggregate, matching the new class weight and/or lmax */
+static int qfq_change_agg(struct Qdisc *sch, struct qfq_class *cl, u32 weight,
+			   u32 lmax)
+{
+	struct qfq_sched *q = qdisc_priv(sch);
+	struct qfq_aggregate *new_agg = qfq_find_agg(q, lmax, weight);
+
+	if (new_agg == NULL) { /* create new aggregate */
+		new_agg = kzalloc(sizeof(*new_agg), GFP_ATOMIC);
+		if (new_agg == NULL)
+			return -ENOBUFS;
+		qfq_init_agg(q, new_agg, lmax, weight);
+	}
+	qfq_deact_rm_from_agg(q, cl);
+	qfq_add_to_agg(q, new_agg, cl);
+
+	return 0;
+}
 
 static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 			    struct nlattr **tca, unsigned long *arg)
 {
 	struct qfq_sched *q = qdisc_priv(sch);
 	struct qfq_class *cl = (struct qfq_class *)*arg;
+	bool existing = false;
 	struct nlattr *tb[TCA_QFQ_MAX + 1];
+	struct qfq_aggregate *new_agg = NULL;
 	u32 weight, lmax, inv_w;
 	int err;
 	int delta_w;
@@ -286,15 +424,6 @@ static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 	} else
 		weight = 1;
 
-	inv_w = ONE_FP / weight;
-	weight = ONE_FP / inv_w;
-	delta_w = weight - (cl ? ONE_FP / cl->inv_w : 0);
-	if (q->wsum + delta_w > QFQ_MAX_WSUM) {
-		pr_notice("qfq: total weight out of range (%u + %u)\n",
-			  delta_w, q->wsum);
-		return -EINVAL;
-	}
-
 	if (tb[TCA_QFQ_LMAX]) {
 		lmax = nla_get_u32(tb[TCA_QFQ_LMAX]);
 		if (lmax < QFQ_MIN_LMAX || lmax > (1UL << QFQ_MTU_SHIFT)) {
@@ -304,7 +433,23 @@ static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 	} else
 		lmax = psched_mtu(qdisc_dev(sch));
 
-	if (cl != NULL) {
+	inv_w = ONE_FP / weight;
+	weight = ONE_FP / inv_w;
+
+	if (cl != NULL &&
+	    lmax == cl->agg->lmax &&
+	    weight == cl->agg->class_weight)
+		return 0; /* nothing to change */
+
+	delta_w = weight - (cl ? cl->agg->class_weight : 0);
+
+	if (q->wsum + delta_w > QFQ_MAX_WSUM) {
+		pr_notice("qfq: total weight out of range (%d + %u)\n",
+			  delta_w, q->wsum);
+		return -EINVAL;
+	}
+
+	if (cl != NULL) { /* modify existing class */
 		if (tca[TCA_RATE]) {
 			err = gen_replace_estimator(&cl->bstats, &cl->rate_est,
 						    qdisc_root_sleeping_lock(sch),
@@ -312,25 +457,18 @@ static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 			if (err)
 				return err;
 		}
-
-		if (lmax == cl->lmax && inv_w == cl->inv_w)
-			return 0; /* nothing to update */
-
-		sch_tree_lock(sch);
-		qfq_update_reactivate_class(q, cl, inv_w, lmax, delta_w);
-		sch_tree_unlock(sch);
-
-		return 0;
+		existing = true;
+		goto set_change_agg;
 	}
 
+	/* create and init new class */
 	cl = kzalloc(sizeof(struct qfq_class), GFP_KERNEL);
 	if (cl == NULL)
 		return -ENOBUFS;
 
 	cl->refcnt = 1;
 	cl->common.classid = classid;
-
-	qfq_update_class_params(q, cl, lmax, inv_w, delta_w);
+	cl->deficit = lmax;
 
 	cl->qdisc = qdisc_create_dflt(sch->dev_queue,
 				      &pfifo_qdisc_ops, classid);
@@ -341,11 +479,8 @@ static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 		err = gen_new_estimator(&cl->bstats, &cl->rate_est,
 					qdisc_root_sleeping_lock(sch),
 					tca[TCA_RATE]);
-		if (err) {
-			qdisc_destroy(cl->qdisc);
-			kfree(cl);
-			return err;
-		}
+		if (err)
+			goto destroy_class;
 	}
 
 	sch_tree_lock(sch);
@@ -354,19 +489,39 @@ static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 
 	qdisc_class_hash_grow(sch, &q->clhash);
 
+set_change_agg:
+	sch_tree_lock(sch);
+	new_agg = qfq_find_agg(q, lmax, weight);
+	if (new_agg == NULL) { /* create new aggregate */
+		sch_tree_unlock(sch);
+		new_agg = kzalloc(sizeof(*new_agg), GFP_KERNEL);
+		if (new_agg == NULL) {
+			err = -ENOBUFS;
+			gen_kill_estimator(&cl->bstats, &cl->rate_est);
+			goto destroy_class;
+		}
+		sch_tree_lock(sch);
+		qfq_init_agg(q, new_agg, lmax, weight);
+	}
+	if (existing)
+		qfq_deact_rm_from_agg(q, cl);
+	qfq_add_to_agg(q, new_agg, cl);
+	sch_tree_unlock(sch);
+
 	*arg = (unsigned long)cl;
 	return 0;
+
+destroy_class:
+	qdisc_destroy(cl->qdisc);
+	kfree(cl);
+	return err;
 }
 
 static void qfq_destroy_class(struct Qdisc *sch, struct qfq_class *cl)
 {
 	struct qfq_sched *q = qdisc_priv(sch);
 
-	if (cl->inv_w) {
-		q->wsum -= ONE_FP / cl->inv_w;
-		cl->inv_w = 0;
-	}
-
+	qfq_rm_from_agg(q, cl);
 	gen_kill_estimator(&cl->bstats, &cl->rate_est);
 	qdisc_destroy(cl->qdisc);
 	kfree(cl);
@@ -481,8 +636,8 @@ static int qfq_dump_class(struct Qdisc *sch, unsigned long arg,
 	nest = nla_nest_start(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
-	if (nla_put_u32(skb, TCA_QFQ_WEIGHT, ONE_FP/cl->inv_w) ||
-	    nla_put_u32(skb, TCA_QFQ_LMAX, cl->lmax))
+	if (nla_put_u32(skb, TCA_QFQ_WEIGHT, cl->agg->class_weight) ||
+	    nla_put_u32(skb, TCA_QFQ_LMAX, cl->agg->lmax))
 		goto nla_put_failure;
 	return nla_nest_end(skb, nest);
 
@@ -500,8 +655,8 @@ static int qfq_dump_class_stats(struct Qdisc *sch, unsigned long arg,
 	memset(&xstats, 0, sizeof(xstats));
 	cl->qdisc->qstats.qlen = cl->qdisc->q.qlen;
 
-	xstats.weight = ONE_FP/cl->inv_w;
-	xstats.lmax = cl->lmax;
+	xstats.weight = cl->agg->class_weight;
+	xstats.lmax = cl->agg->lmax;
 
 	if (gnet_stats_copy_basic(d, &cl->bstats) < 0 ||
 	    gnet_stats_copy_rate_est(d, &cl->bstats, &cl->rate_est) < 0 ||
@@ -652,16 +807,16 @@ static void qfq_unblock_groups(struct qfq_sched *q, int index, u64 old_F)
  * perhaps
  *
 	old_V ^= q->V;
-	old_V >>= QFQ_MIN_SLOT_SHIFT;
+	old_V >>= q->min_slot_shift;
 	if (old_V) {
 		...
 	}
  *
  */
-static void qfq_make_eligible(struct qfq_sched *q, u64 old_V)
+static void qfq_make_eligible(struct qfq_sched *q)
 {
-	unsigned long vslot = q->V >> QFQ_MIN_SLOT_SHIFT;
-	unsigned long old_vslot = old_V >> QFQ_MIN_SLOT_SHIFT;
+	unsigned long vslot = q->V >> q->min_slot_shift;
+	unsigned long old_vslot = q->oldV >> q->min_slot_shift;
 
 	if (vslot != old_vslot) {
 		unsigned long mask = (1UL << fls(vslot ^ old_vslot)) - 1;
@@ -672,34 +827,38 @@ static void qfq_make_eligible(struct qfq_sched *q, u64 old_V)
 
 
 /*
- * If the weight and lmax (max_pkt_size) of the classes do not change,
- * then QFQ guarantees that the slot index is never higher than
- * 2 + ((1<<QFQ_MTU_SHIFT)/QFQ_MIN_LMAX) * (QFQ_MAX_WEIGHT/QFQ_MAX_WSUM).
+ * The index of the slot in which the aggregate is to be inserted must
+ * not be higher than QFQ_MAX_SLOTS-2. There is a '-2' and not a '-1'
+ * because the start time of the group may be moved backward by one
+ * slot after the aggregate has been inserted, and this would cause
+ * non-empty slots to be right-shifted by one position.
  *
- * With the current values of the above constants, the index is
- * then guaranteed to never be higher than 2 + 256 * (1 / 16) = 18.
+ * If the weight and lmax (max_pkt_size) of the classes do not change,
+ * then QFQ+ does meet the above contraint according to the current
+ * values of its parameters. In fact, if the weight and lmax of the
+ * classes do not change, then, from the theory, QFQ+ guarantees that
+ * the slot index is never higher than
+ * 2 + QFQ_MAX_AGG_CLASSES * ((1<<QFQ_MTU_SHIFT)/QFQ_MIN_LMAX) *
+ * (QFQ_MAX_WEIGHT/QFQ_MAX_WSUM) = 2 + 8 * 128 * (1 / 64) = 18
  *
  * When the weight of a class is increased or the lmax of the class is
- * decreased, a new class with smaller slot size may happen to be
- * activated. The activation of this class should be properly delayed
- * to when the service of the class has finished in the ideal system
- * tracked by QFQ. If the activation of the class is not delayed to
- * this reference time instant, then this class may be unjustly served
- * before other classes waiting for service. This may cause
- * (unfrequently) the above bound to the slot index to be violated for
- * some of these unlucky classes.
+ * decreased, a new aggregate with smaller slot size than the original
+ * parent aggregate of the class may happen to be activated. The
+ * activation of this aggregate should be properly delayed to when the
+ * service of the class has finished in the ideal system tracked by
+ * QFQ+. If the activation of the aggregate is not delayed to this
+ * reference time instant, then this aggregate may be unjustly served
+ * before other aggregates waiting for service. This may cause the
+ * above bound to the slot index to be violated for some of these
+ * unlucky aggregates.
  *
- * Instead of delaying the activation of the new class, which is quite
- * complex, the following inaccurate but simple solution is used: if
- * the slot index is higher than QFQ_MAX_SLOTS-2, then the timestamps
- * of the class are shifted backward so as to let the slot index
- * become equal to QFQ_MAX_SLOTS-2. This threshold is used because, if
- * the slot index is above it, then the data structure implementing
- * the bucket list either gets immediately corrupted or may get
- * corrupted on a possible next packet arrival that causes the start
- * time of the group to be shifted backward.
+ * Instead of delaying the activation of the new aggregate, which is
+ * quite complex, the following inaccurate but simple solution is used:
+ * if the slot index is higher than QFQ_MAX_SLOTS-2, then the
+ * timestamps of the aggregate are shifted backward so as to let the
+ * slot index become equal to QFQ_MAX_SLOTS-2.
  */
-static void qfq_slot_insert(struct qfq_group *grp, struct qfq_class *cl,
+static void qfq_slot_insert(struct qfq_group *grp, struct qfq_aggregate *agg,
 			    u64 roundedS)
 {
 	u64 slot = (roundedS - grp->S) >> grp->slot_shift;
@@ -708,22 +867,22 @@ static void qfq_slot_insert(struct qfq_group *grp, struct qfq_class *cl,
 	if (unlikely(slot > QFQ_MAX_SLOTS - 2)) {
 		u64 deltaS = roundedS - grp->S -
 			((u64)(QFQ_MAX_SLOTS - 2)<<grp->slot_shift);
-		cl->S -= deltaS;
-		cl->F -= deltaS;
+		agg->S -= deltaS;
+		agg->F -= deltaS;
 		slot = QFQ_MAX_SLOTS - 2;
 	}
 
 	i = (grp->front + slot) % QFQ_MAX_SLOTS;
 
-	hlist_add_head(&cl->next, &grp->slots[i]);
+	hlist_add_head(&agg->next, &grp->slots[i]);
 	__set_bit(slot, &grp->full_slots);
 }
 
 /* Maybe introduce hlist_first_entry?? */
-static struct qfq_class *qfq_slot_head(struct qfq_group *grp)
+static struct qfq_aggregate *qfq_slot_head(struct qfq_group *grp)
 {
 	return hlist_entry(grp->slots[grp->front].first,
-			   struct qfq_class, next);
+			   struct qfq_aggregate, next);
 }
 
 /*
@@ -731,20 +890,20 @@ static struct qfq_class *qfq_slot_head(struct qfq_group *grp)
  */
 static void qfq_front_slot_remove(struct qfq_group *grp)
 {
-	struct qfq_class *cl = qfq_slot_head(grp);
+	struct qfq_aggregate *agg = qfq_slot_head(grp);
 
-	BUG_ON(!cl);
-	hlist_del(&cl->next);
+	BUG_ON(!agg);
+	hlist_del(&agg->next);
 	if (hlist_empty(&grp->slots[grp->front]))
 		__clear_bit(0, &grp->full_slots);
 }
 
 /*
- * Returns the first full queue in a group. As a side effect,
- * adjust the bucket list so the first non-empty bucket is at
- * position 0 in full_slots.
+ * Returns the first aggregate in the first non-empty bucket of the
+ * group. As a side effect, adjusts the bucket list so the first
+ * non-empty bucket is at position 0 in full_slots.
  */
-static struct qfq_class *qfq_slot_scan(struct qfq_group *grp)
+static struct qfq_aggregate *qfq_slot_scan(struct qfq_group *grp)
 {
 	unsigned int i;
 
@@ -780,7 +939,7 @@ static void qfq_slot_rotate(struct qfq_group *grp, u64 roundedS)
 	grp->front = (grp->front - i) % QFQ_MAX_SLOTS;
 }
 
-static void qfq_update_eligible(struct qfq_sched *q, u64 old_V)
+static void qfq_update_eligible(struct qfq_sched *q)
 {
 	struct qfq_group *grp;
 	unsigned long ineligible;
@@ -792,137 +951,226 @@ static void qfq_update_eligible(struct qfq_sched *q, u64 old_V)
 			if (qfq_gt(grp->S, q->V))
 				q->V = grp->S;
 		}
-		qfq_make_eligible(q, old_V);
+		qfq_make_eligible(q);
 	}
 }
 
-/*
- * Updates the class, returns true if also the group needs to be updated.
- */
-static bool qfq_update_class(struct qfq_group *grp, struct qfq_class *cl)
+/* Dequeue head packet of the head class in the DRR queue of the aggregate. */
+static void agg_dequeue(struct qfq_aggregate *agg,
+			struct qfq_class *cl, unsigned int len)
 {
-	unsigned int len = qdisc_peek_len(cl->qdisc);
+	qdisc_dequeue_peeked(cl->qdisc);
 
-	cl->S = cl->F;
-	if (!len)
-		qfq_front_slot_remove(grp);	/* queue is empty */
-	else {
-		u64 roundedS;
+	cl->deficit -= (int) len;
 
-		cl->F = cl->S + (u64)len * cl->inv_w;
-		roundedS = qfq_round_down(cl->S, grp->slot_shift);
-		if (roundedS == grp->S)
-			return false;
-
-		qfq_front_slot_remove(grp);
-		qfq_slot_insert(grp, cl, roundedS);
+	if (cl->qdisc->q.qlen == 0) /* no more packets, remove from list */
+		list_del(&cl->alist);
+	else if (cl->deficit < qdisc_pkt_len(cl->qdisc->ops->peek(cl->qdisc))) {
+		cl->deficit += agg->lmax;
+		list_move_tail(&cl->alist, &agg->active);
 	}
+}
+
+static inline struct sk_buff *qfq_peek_skb(struct qfq_aggregate *agg,
+					   struct qfq_class **cl,
+					   unsigned int *len)
+{
+	struct sk_buff *skb;
 
-	return true;
+	*cl = list_first_entry(&agg->active, struct qfq_class, alist);
+	skb = (*cl)->qdisc->ops->peek((*cl)->qdisc);
+	if (skb == NULL)
+		WARN_ONCE(1, "qfq_dequeue: non-workconserving leaf\n");
+	else
+		*len = qdisc_pkt_len(skb);
+
+	return skb;
+}
+
+/* Update F according to the actual service received by the aggregate. */
+static inline void charge_actual_service(struct qfq_aggregate *agg)
+{
+	/* compute the service received by the aggregate */
+	u32 service_received = agg->initial_budget - agg->budget;
+
+	agg->F = agg->S + (u64)service_received * agg->inv_w;
 }
 
 static struct sk_buff *qfq_dequeue(struct Qdisc *sch)
 {
 	struct qfq_sched *q = qdisc_priv(sch);
-	struct qfq_group *grp;
+	struct qfq_aggregate *in_serv_agg = q->in_serv_agg;
 	struct qfq_class *cl;
-	struct sk_buff *skb;
-	unsigned int len;
-	u64 old_V;
+	struct sk_buff *skb = NULL;
+	/* next-packet len, 0 means no more active classes in in-service agg */
+	unsigned int len = 0;
 
-	if (!q->bitmaps[ER])
+	if (in_serv_agg == NULL)
 		return NULL;
 
-	grp = qfq_ffs(q, q->bitmaps[ER]);
+	if (!list_empty(&in_serv_agg->active))
+		skb = qfq_peek_skb(in_serv_agg, &cl, &len);
 
-	cl = qfq_slot_head(grp);
-	skb = qdisc_dequeue_peeked(cl->qdisc);
-	if (!skb) {
-		WARN_ONCE(1, "qfq_dequeue: non-workconserving leaf\n");
-		return NULL;
+	/*
+	 * If there are no active classes in the in-service aggregate,
+	 * or if the aggregate has not enough budget to serve its next
+	 * class, then choose the next aggregate to serve.
+	 */
+	if (len == 0 || in_serv_agg->budget < len) {
+		charge_actual_service(in_serv_agg);
+
+		/* recharge the budget of the aggregate */
+		in_serv_agg->initial_budget = in_serv_agg->budget =
+			in_serv_agg->budgetmax;
+
+		if (!list_empty(&in_serv_agg->active))
+			/*
+			 * Still active: reschedule for
+			 * service. Possible optimization: if no other
+			 * aggregate is active, then there is no point
+			 * in rescheduling this aggregate, and we can
+			 * just keep it as the in-service one. This
+			 * should be however a corner case, and to
+			 * handle it, we would need to maintain an
+			 * extra num_active_aggs field.
+			*/
+			qfq_activate_agg(q, in_serv_agg, requeue);
+		else if (sch->q.qlen == 0) { /* no aggregate to serve */
+			q->in_serv_agg = NULL;
+			return NULL;
+		}
+
+		/*
+		 * If we get here, there are other aggregates queued:
+		 * choose the new aggregate to serve.
+		 */
+		in_serv_agg = q->in_serv_agg = qfq_choose_next_agg(q);
+		skb = qfq_peek_skb(in_serv_agg, &cl, &len);
 	}
+	if (!skb)
+		return NULL;
 
 	sch->q.qlen--;
 	qdisc_bstats_update(sch, skb);
 
-	old_V = q->V;
-	len = qdisc_pkt_len(skb);
+	agg_dequeue(in_serv_agg, cl, len);
+	in_serv_agg->budget -= len;
 	q->V += (u64)len * IWSUM;
 	pr_debug("qfq dequeue: len %u F %lld now %lld\n",
-		 len, (unsigned long long) cl->F, (unsigned long long) q->V);
+		 len, (unsigned long long) in_serv_agg->F,
+		 (unsigned long long) q->V);
 
-	if (qfq_update_class(grp, cl)) {
-		u64 old_F = grp->F;
+	return skb;
+}
 
-		cl = qfq_slot_scan(grp);
-		if (!cl)
-			__clear_bit(grp->index, &q->bitmaps[ER]);
-		else {
-			u64 roundedS = qfq_round_down(cl->S, grp->slot_shift);
-			unsigned int s;
+static struct qfq_aggregate *qfq_choose_next_agg(struct qfq_sched *q)
+{
+	struct qfq_group *grp;
+	struct qfq_aggregate *agg, *new_front_agg;
+	u64 old_F;
 
-			if (grp->S == roundedS)
-				goto skip_unblock;
-			grp->S = roundedS;
-			grp->F = roundedS + (2ULL << grp->slot_shift);
-			__clear_bit(grp->index, &q->bitmaps[ER]);
-			s = qfq_calc_state(q, grp);
-			__set_bit(grp->index, &q->bitmaps[s]);
-		}
+	qfq_update_eligible(q);
+	q->oldV = q->V;
+
+	if (!q->bitmaps[ER])
+		return NULL;
+
+	grp = qfq_ffs(q, q->bitmaps[ER]);
+	old_F = grp->F;
+
+	agg = qfq_slot_head(grp);
 
-		qfq_unblock_groups(q, grp->index, old_F);
+	/* agg starts to be served, remove it from schedule */
+	qfq_front_slot_remove(grp);
+
+	new_front_agg = qfq_slot_scan(grp);
+
+	if (new_front_agg == NULL) /* group is now inactive, remove from ER */
+		__clear_bit(grp->index, &q->bitmaps[ER]);
+	else {
+		u64 roundedS = qfq_round_down(new_front_agg->S,
+					      grp->slot_shift);
+		unsigned int s;
+
+		if (grp->S == roundedS)
+			return agg;
+		grp->S = roundedS;
+		grp->F = roundedS + (2ULL << grp->slot_shift);
+		__clear_bit(grp->index, &q->bitmaps[ER]);
+		s = qfq_calc_state(q, grp);
+		__set_bit(grp->index, &q->bitmaps[s]);
 	}
 
-skip_unblock:
-	qfq_update_eligible(q, old_V);
+	qfq_unblock_groups(q, grp->index, old_F);
 
-	return skb;
+	return agg;
 }
 
 /*
- * Assign a reasonable start time for a new flow k in group i.
+ * Assign a reasonable start time for a new aggregate in group i.
  * Admissible values for \hat(F) are multiples of \sigma_i
  * no greater than V+\sigma_i . Larger values mean that
  * we had a wraparound so we consider the timestamp to be stale.
  *
  * If F is not stale and F >= V then we set S = F.
  * Otherwise we should assign S = V, but this may violate
- * the ordering in ER. So, if we have groups in ER, set S to
- * the F_j of the first group j which would be blocking us.
+ * the ordering in EB (see [2]). So, if we have groups in ER,
+ * set S to the F_j of the first group j which would be blocking us.
  * We are guaranteed not to move S backward because
  * otherwise our group i would still be blocked.
  */
-static void qfq_update_start(struct qfq_sched *q, struct qfq_class *cl)
+static void qfq_update_start(struct qfq_sched *q, struct qfq_aggregate *agg)
 {
 	unsigned long mask;
 	u64 limit, roundedF;
-	int slot_shift = cl->grp->slot_shift;
+	int slot_shift = agg->grp->slot_shift;
 
-	roundedF = qfq_round_down(cl->F, slot_shift);
+	roundedF = qfq_round_down(agg->F, slot_shift);
 	limit = qfq_round_down(q->V, slot_shift) + (1ULL << slot_shift);
 
-	if (!qfq_gt(cl->F, q->V) || qfq_gt(roundedF, limit)) {
+	if (!qfq_gt(agg->F, q->V) || qfq_gt(roundedF, limit)) {
 		/* timestamp was stale */
-		mask = mask_from(q->bitmaps[ER], cl->grp->index);
+		mask = mask_from(q->bitmaps[ER], agg->grp->index);
 		if (mask) {
 			struct qfq_group *next = qfq_ffs(q, mask);
 			if (qfq_gt(roundedF, next->F)) {
 				if (qfq_gt(limit, next->F))
-					cl->S = next->F;
+					agg->S = next->F;
 				else /* preserve timestamp correctness */
-					cl->S = limit;
+					agg->S = limit;
 				return;
 			}
 		}
-		cl->S = q->V;
+		agg->S = q->V;
 	} else  /* timestamp is not stale */
-		cl->S = cl->F;
+		agg->S = agg->F;
 }
 
+/*
+ * Update the timestamps of agg before scheduling/rescheduling it for
+ * service.  In particular, assign to agg->F its maximum possible
+ * value, i.e., the virtual finish time with which the aggregate
+ * should be labeled if it used all its budget once in service.
+ */
+static inline void
+qfq_update_agg_ts(struct qfq_sched *q,
+		    struct qfq_aggregate *agg, enum update_reason reason)
+{
+	if (reason != requeue)
+		qfq_update_start(q, agg);
+	else /* just charge agg for the service received */
+		agg->S = agg->F;
+
+	agg->F = agg->S + (u64)agg->budgetmax * agg->inv_w;
+}
+
+static void qfq_schedule_agg(struct qfq_sched *, struct qfq_aggregate *);
+
 static int qfq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
 	struct qfq_sched *q = qdisc_priv(sch);
 	struct qfq_class *cl;
+	struct qfq_aggregate *agg;
 	int err = 0;
 
 	cl = qfq_classify(skb, sch, &err);
@@ -934,11 +1182,13 @@ static int qfq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 	}
 	pr_debug("qfq_enqueue: cl = %x\n", cl->common.classid);
 
-	if (unlikely(cl->lmax < qdisc_pkt_len(skb))) {
+	if (unlikely(cl->agg->lmax < qdisc_pkt_len(skb))) {
 		pr_debug("qfq: increasing maxpkt from %u to %u for class %u",
-			  cl->lmax, qdisc_pkt_len(skb), cl->common.classid);
-		qfq_update_reactivate_class(q, cl, cl->inv_w,
-					    qdisc_pkt_len(skb), 0);
+			 cl->agg->lmax, qdisc_pkt_len(skb), cl->common.classid);
+		err = qfq_change_agg(sch, cl, cl->agg->class_weight,
+				     qdisc_pkt_len(skb));
+		if (err)
+			return err;
 	}
 
 	err = qdisc_enqueue(skb, cl->qdisc);
@@ -954,35 +1204,50 @@ static int qfq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 	bstats_update(&cl->bstats, skb);
 	++sch->q.qlen;
 
-	/* If the new skb is not the head of queue, then done here. */
-	if (cl->qdisc->q.qlen != 1)
+	agg = cl->agg;
+	/* if the queue was not empty, then done here */
+	if (cl->qdisc->q.qlen != 1) {
+		if (unlikely(skb == cl->qdisc->ops->peek(cl->qdisc)) &&
+		    list_first_entry(&agg->active, struct qfq_class, alist)
+		    == cl && cl->deficit < qdisc_pkt_len(skb))
+			list_move_tail(&cl->alist, &agg->active);
+
 		return err;
+	}
+
+	/* schedule class for service within the aggregate */
+	cl->deficit = agg->lmax;
+	list_add_tail(&cl->alist, &agg->active);
 
-	/* If reach this point, queue q was idle */
-	qfq_activate_class(q, cl, qdisc_pkt_len(skb));
+	if (list_first_entry(&agg->active, struct qfq_class, alist) != cl)
+		return err; /* aggregate was not empty, nothing else to do */
+
+	/* recharge budget */
+	agg->initial_budget = agg->budget = agg->budgetmax;
+
+	qfq_update_agg_ts(q, agg, enqueue);
+	if (q->in_serv_agg == NULL)
+		q->in_serv_agg = agg;
+	else if (agg != q->in_serv_agg)
+		qfq_schedule_agg(q, agg);
 
 	return err;
 }
 
 /*
- * Handle class switch from idle to backlogged.
+ * Schedule aggregate according to its timestamps.
  */
-static void qfq_activate_class(struct qfq_sched *q, struct qfq_class *cl,
-			       unsigned int pkt_len)
+static void qfq_schedule_agg(struct qfq_sched *q, struct qfq_aggregate *agg)
 {
-	struct qfq_group *grp = cl->grp;
+	struct qfq_group *grp = agg->grp;
 	u64 roundedS;
 	int s;
 
-	qfq_update_start(q, cl);
-
-	/* compute new finish time and rounded start. */
-	cl->F = cl->S + (u64)pkt_len * cl->inv_w;
-	roundedS = qfq_round_down(cl->S, grp->slot_shift);
+	roundedS = qfq_round_down(agg->S, grp->slot_shift);
 
 	/*
-	 * insert cl in the correct bucket.
-	 * If cl->S >= grp->S we don't need to adjust the
+	 * Insert agg in the correct bucket.
+	 * If agg->S >= grp->S we don't need to adjust the
 	 * bucket list and simply go to the insertion phase.
 	 * Otherwise grp->S is decreasing, we must make room
 	 * in the bucket list, and also recompute the group state.
@@ -990,10 +1255,10 @@ static void qfq_activate_class(struct qfq_sched *q, struct qfq_class *cl,
 	 * was in ER make sure to adjust V.
 	 */
 	if (grp->full_slots) {
-		if (!qfq_gt(grp->S, cl->S))
+		if (!qfq_gt(grp->S, agg->S))
 			goto skip_update;
 
-		/* create a slot for this cl->S */
+		/* create a slot for this agg->S */
 		qfq_slot_rotate(grp, roundedS);
 		/* group was surely ineligible, remove */
 		__clear_bit(grp->index, &q->bitmaps[IR]);
@@ -1008,46 +1273,61 @@ static void qfq_activate_class(struct qfq_sched *q, struct qfq_class *cl,
 
 	pr_debug("qfq enqueue: new state %d %#lx S %lld F %lld V %lld\n",
 		 s, q->bitmaps[s],
-		 (unsigned long long) cl->S,
-		 (unsigned long long) cl->F,
+		 (unsigned long long) agg->S,
+		 (unsigned long long) agg->F,
 		 (unsigned long long) q->V);
 
 skip_update:
-	qfq_slot_insert(grp, cl, roundedS);
+	qfq_slot_insert(grp, agg, roundedS);
 }
 
 
+/* Update agg ts and schedule agg for service */
+static void qfq_activate_agg(struct qfq_sched *q, struct qfq_aggregate *agg,
+			     enum update_reason reason)
+{
+	qfq_update_agg_ts(q, agg, reason);
+	qfq_schedule_agg(q, agg);
+}
+
 static void qfq_slot_remove(struct qfq_sched *q, struct qfq_group *grp,
-			    struct qfq_class *cl)
+			    struct qfq_aggregate *agg)
 {
 	unsigned int i, offset;
 	u64 roundedS;
 
-	roundedS = qfq_round_down(cl->S, grp->slot_shift);
+	roundedS = qfq_round_down(agg->S, grp->slot_shift);
 	offset = (roundedS - grp->S) >> grp->slot_shift;
+
 	i = (grp->front + offset) % QFQ_MAX_SLOTS;
 
-	hlist_del(&cl->next);
+	hlist_del(&agg->next);
 	if (hlist_empty(&grp->slots[i]))
 		__clear_bit(offset, &grp->full_slots);
 }
 
 /*
- * called to forcibly destroy a queue.
- * If the queue is not in the front bucket, or if it has
- * other queues in the front bucket, we can simply remove
- * the queue with no other side effects.
+ * Called to forcibly deschedule an aggregate.  If the aggregate is
+ * not in the front bucket, or if the latter has other aggregates in
+ * the front bucket, we can simply remove the aggregate with no other
+ * side effects.
  * Otherwise we must propagate the event up.
  */
-static void qfq_deactivate_class(struct qfq_sched *q, struct qfq_class *cl)
+static void qfq_deactivate_agg(struct qfq_sched *q, struct qfq_aggregate *agg)
 {
-	struct qfq_group *grp = cl->grp;
+	struct qfq_group *grp = agg->grp;
 	unsigned long mask;
 	u64 roundedS;
 	int s;
 
-	cl->F = cl->S;
-	qfq_slot_remove(q, grp, cl);
+	if (agg == q->in_serv_agg) {
+		charge_actual_service(agg);
+		q->in_serv_agg = qfq_choose_next_agg(q);
+		return;
+	}
+
+	agg->F = agg->S;
+	qfq_slot_remove(q, grp, agg);
 
 	if (!grp->full_slots) {
 		__clear_bit(grp->index, &q->bitmaps[IR]);
@@ -1066,8 +1346,8 @@ static void qfq_deactivate_class(struct qfq_sched *q, struct qfq_class *cl)
 		}
 		__clear_bit(grp->index, &q->bitmaps[ER]);
 	} else if (hlist_empty(&grp->slots[grp->front])) {
-		cl = qfq_slot_scan(grp);
-		roundedS = qfq_round_down(cl->S, grp->slot_shift);
+		agg = qfq_slot_scan(grp);
+		roundedS = qfq_round_down(agg->S, grp->slot_shift);
 		if (grp->S != roundedS) {
 			__clear_bit(grp->index, &q->bitmaps[ER]);
 			__clear_bit(grp->index, &q->bitmaps[IR]);
@@ -1080,7 +1360,7 @@ static void qfq_deactivate_class(struct qfq_sched *q, struct qfq_class *cl)
 		}
 	}
 
-	qfq_update_eligible(q, q->V);
+	qfq_update_eligible(q);
 }
 
 static void qfq_qlen_notify(struct Qdisc *sch, unsigned long arg)
@@ -1092,6 +1372,32 @@ static void qfq_qlen_notify(struct Qdisc *sch, unsigned long arg)
 		qfq_deactivate_class(q, cl);
 }
 
+static unsigned int qfq_drop_from_slot(struct qfq_sched *q,
+				       struct hlist_head *slot)
+{
+	struct qfq_aggregate *agg;
+	struct hlist_node *n;
+	struct qfq_class *cl;
+	unsigned int len;
+
+	hlist_for_each_entry(agg, n, slot, next) {
+		list_for_each_entry(cl, &agg->active, alist) {
+
+			if (!cl->qdisc->ops->drop)
+				continue;
+
+			len = cl->qdisc->ops->drop(cl->qdisc);
+			if (len > 0) {
+				if (cl->qdisc->q.qlen == 0)
+					qfq_deactivate_class(q, cl);
+
+				return len;
+			}
+		}
+	}
+	return 0;
+}
+
 static unsigned int qfq_drop(struct Qdisc *sch)
 {
 	struct qfq_sched *q = qdisc_priv(sch);
@@ -1101,24 +1407,13 @@ static unsigned int qfq_drop(struct Qdisc *sch)
 	for (i = 0; i <= QFQ_MAX_INDEX; i++) {
 		grp = &q->groups[i];
 		for (j = 0; j < QFQ_MAX_SLOTS; j++) {
-			struct qfq_class *cl;
-			struct hlist_node *n;
-
-			hlist_for_each_entry(cl, n, &grp->slots[j], next) {
-
-				if (!cl->qdisc->ops->drop)
-					continue;
-
-				len = cl->qdisc->ops->drop(cl->qdisc);
-				if (len > 0) {
-					sch->q.qlen--;
-					if (!cl->qdisc->q.qlen)
-						qfq_deactivate_class(q, cl);
-
-					return len;
-				}
+			len = qfq_drop_from_slot(q, &grp->slots[j]);
+			if (len > 0) {
+				sch->q.qlen--;
+				return len;
 			}
 		}
+
 	}
 
 	return 0;
@@ -1129,44 +1424,51 @@ static int qfq_init_qdisc(struct Qdisc *sch, struct nlattr *opt)
 	struct qfq_sched *q = qdisc_priv(sch);
 	struct qfq_group *grp;
 	int i, j, err;
+	u32 max_cl_shift, maxbudg_shift, max_classes;
 
 	err = qdisc_class_hash_init(&q->clhash);
 	if (err < 0)
 		return err;
 
+	if (qdisc_dev(sch)->tx_queue_len + 1 > QFQ_MAX_AGG_CLASSES)
+		max_classes = QFQ_MAX_AGG_CLASSES;
+	else
+		max_classes = qdisc_dev(sch)->tx_queue_len + 1;
+	/* max_cl_shift = floor(log_2(max_classes)) */
+	max_cl_shift = __fls(max_classes);
+	q->max_agg_classes = 1<<max_cl_shift;
+
+	/* maxbudg_shift = log2(max_len * max_classes_per_agg) */
+	maxbudg_shift = QFQ_MTU_SHIFT + max_cl_shift;
+	q->min_slot_shift = FRAC_BITS + maxbudg_shift - QFQ_MAX_INDEX;
+
 	for (i = 0; i <= QFQ_MAX_INDEX; i++) {
 		grp = &q->groups[i];
 		grp->index = i;
-		grp->slot_shift = QFQ_MTU_SHIFT + FRAC_BITS
-				   - (QFQ_MAX_INDEX - i);
+		grp->slot_shift = q->min_slot_shift + i;
 		for (j = 0; j < QFQ_MAX_SLOTS; j++)
 			INIT_HLIST_HEAD(&grp->slots[j]);
 	}
 
+	INIT_HLIST_HEAD(&q->nonfull_aggs);
+
 	return 0;
 }
 
 static void qfq_reset_qdisc(struct Qdisc *sch)
 {
 	struct qfq_sched *q = qdisc_priv(sch);
-	struct qfq_group *grp;
 	struct qfq_class *cl;
-	struct hlist_node *n, *tmp;
-	unsigned int i, j;
+	struct hlist_node *n;
+	unsigned int i;
 
-	for (i = 0; i <= QFQ_MAX_INDEX; i++) {
-		grp = &q->groups[i];
-		for (j = 0; j < QFQ_MAX_SLOTS; j++) {
-			hlist_for_each_entry_safe(cl, n, tmp,
-						  &grp->slots[j], next) {
+	for (i = 0; i < q->clhash.hashsize; i++) {
+		hlist_for_each_entry(cl, n, &q->clhash.hash[i], common.hnode) {
+			if (cl->qdisc->q.qlen > 0)
 				qfq_deactivate_class(q, cl);
-			}
-		}
-	}
 
-	for (i = 0; i < q->clhash.hashsize; i++) {
-		hlist_for_each_entry(cl, n, &q->clhash.hash[i], common.hnode)
 			qdisc_reset(cl->qdisc);
+		}
 	}
 	sch->q.qlen = 0;
 }
diff --git a/net/sctp/Kconfig b/net/sctp/Kconfig
index 126b014e..a9edd2e 100644
--- a/net/sctp/Kconfig
+++ b/net/sctp/Kconfig
@@ -9,7 +9,6 @@ menuconfig IP_SCTP
 	select CRYPTO
 	select CRYPTO_HMAC
 	select CRYPTO_SHA1
-	select CRYPTO_MD5 if SCTP_HMAC_MD5
 	select LIBCRC32C
 	---help---
 	  Stream Control Transmission Protocol
@@ -68,33 +67,21 @@ config SCTP_DBG_OBJCNT
 
 	  If unsure, say N
 
-choice
-	prompt "SCTP: Cookie HMAC Algorithm"
-	default SCTP_HMAC_MD5
+config SCTP_COOKIE_HMAC_MD5
+	bool "Enable optional MD5 hmac cookie generation"
 	help
-	  HMAC algorithm to be used during association initialization.  It
-	  is strongly recommended to use HMAC-SHA1 or HMAC-MD5.  See 
-	  configuration for Cryptographic API and enable those algorithms
-          to make usable by SCTP. 
-
-config SCTP_HMAC_NONE
-	bool "None"
-	help 
-	  Choosing this disables the use of an HMAC during association 
-	  establishment.  It is advised to use either HMAC-MD5 or HMAC-SHA1.
-
-config SCTP_HMAC_SHA1
-	bool "HMAC-SHA1"
-	help 
-	  Enable the use of HMAC-SHA1 during association establishment.  It 
-	  is advised to use either HMAC-MD5 or HMAC-SHA1.
-
-config SCTP_HMAC_MD5
-	bool "HMAC-MD5"
+	  Enable optional MD5 hmac based SCTP cookie generation
+	default y
+	select CRYPTO_HMAC if SCTP_COOKIE_HMAC_MD5
+	select CRYPTO_MD5 if SCTP_COOKIE_HMAC_MD5
+
+config SCTP_COOKIE_HMAC_SHA1
+	bool "Enable optional SHA1 hmac cookie generation"
 	help
-	  Enable the use of HMAC-MD5 during association establishment.  It is 
-	  advised to use either HMAC-MD5 or HMAC-SHA1.
+	  Enable optional SHA1 hmac based SCTP cookie generation
+	default y
+	select CRYPTO_HMAC if SCTP_COOKIE_HMAC_SHA1
+	select CRYPTO_SHA1 if SCTP_COOKIE_HMAC_SHA1
 
-endchoice
 
 endif # IP_SCTP
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index b1ef3bc..b45ed1f 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -321,6 +321,9 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
 	asoc->default_timetolive = sp->default_timetolive;
 	asoc->default_rcv_context = sp->default_rcv_context;
 
+	/* SCTP_GET_ASSOC_STATS COUNTERS */
+	memset(&asoc->stats, 0, sizeof(struct sctp_priv_assoc_stats));
+
 	/* AUTH related initializations */
 	INIT_LIST_HEAD(&asoc->endpoint_shared_keys);
 	err = sctp_auth_asoc_copy_shkeys(ep, asoc, gfp);
@@ -445,7 +448,7 @@ void sctp_association_free(struct sctp_association *asoc)
 	/* Release the transport structures. */
 	list_for_each_safe(pos, temp, &asoc->peer.transport_addr_list) {
 		transport = list_entry(pos, struct sctp_transport, transports);
-		list_del(pos);
+		list_del_rcu(pos);
 		sctp_transport_free(transport);
 	}
 
@@ -565,7 +568,7 @@ void sctp_assoc_rm_peer(struct sctp_association *asoc,
 		sctp_assoc_update_retran_path(asoc);
 
 	/* Remove this peer from the list. */
-	list_del(&peer->transports);
+	list_del_rcu(&peer->transports);
 
 	/* Get the first transport of asoc. */
 	pos = asoc->peer.transport_addr_list.next;
@@ -760,12 +763,13 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
 
 	/* Set the transport's RTO.initial value */
 	peer->rto = asoc->rto_initial;
+	sctp_max_rto(asoc, peer);
 
 	/* Set the peer's active state. */
 	peer->state = peer_state;
 
 	/* Attach the remote transport to our asoc.  */
-	list_add_tail(&peer->transports, &asoc->peer.transport_addr_list);
+	list_add_tail_rcu(&peer->transports, &asoc->peer.transport_addr_list);
 	asoc->peer.transport_count++;
 
 	/* If we do not yet have a primary path, set one.  */
@@ -1152,8 +1156,12 @@ static void sctp_assoc_bh_rcv(struct work_struct *work)
 		 */
 		if (sctp_chunk_is_data(chunk))
 			asoc->peer.last_data_from = chunk->transport;
-		else
+		else {
 			SCTP_INC_STATS(net, SCTP_MIB_INCTRLCHUNKS);
+			asoc->stats.ictrlchunks++;
+			if (chunk->chunk_hdr->type == SCTP_CID_SACK)
+				asoc->stats.isacks++;
+		}
 
 		if (chunk->transport)
 			chunk->transport->last_time_heard = jiffies;
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 1859e2b..32ab55b 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -480,8 +480,11 @@ normal:
 		 */
 		if (asoc && sctp_chunk_is_data(chunk))
 			asoc->peer.last_data_from = chunk->transport;
-		else
+		else {
 			SCTP_INC_STATS(sock_net(ep->base.sk), SCTP_MIB_INCTRLCHUNKS);
+			if (asoc)
+				asoc->stats.ictrlchunks++;
+		}
 
 		if (chunk->transport)
 			chunk->transport->last_time_heard = jiffies;
diff --git a/net/sctp/inqueue.c b/net/sctp/inqueue.c
index 397296f..2d5ad28 100644
--- a/net/sctp/inqueue.c
+++ b/net/sctp/inqueue.c
@@ -104,6 +104,8 @@ void sctp_inq_push(struct sctp_inq *q, struct sctp_chunk *chunk)
 	 * on the BH related data structures.
 	 */
 	list_add_tail(&chunk->list, &q->in_chunk_list);
+	if (chunk->asoc)
+		chunk->asoc->stats.ipackets++;
 	q->immediate.func(&q->immediate);
 }
 
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index ea14cb4..f3f0f4d 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -345,7 +345,7 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
 	}
 
 out:
-	if (!IS_ERR(dst)) {
+	if (!IS_ERR_OR_NULL(dst)) {
 		struct rt6_info *rt;
 		rt = (struct rt6_info *)dst;
 		t->dst = dst;
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 4e90188bf..f5200a2 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -311,6 +311,8 @@ static sctp_xmit_t __sctp_packet_append_chunk(struct sctp_packet *packet,
 
 	    case SCTP_CID_SACK:
 		packet->has_sack = 1;
+		if (chunk->asoc)
+			chunk->asoc->stats.osacks++;
 		break;
 
 	    case SCTP_CID_AUTH:
@@ -584,11 +586,13 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 	 */
 
 	/* Dump that on IP!  */
-	if (asoc && asoc->peer.last_sent_to != tp) {
-		/* Considering the multiple CPU scenario, this is a
-		 * "correcter" place for last_sent_to.  --xguo
-		 */
-		asoc->peer.last_sent_to = tp;
+	if (asoc) {
+		asoc->stats.opackets++;
+		if (asoc->peer.last_sent_to != tp)
+			/* Considering the multiple CPU scenario, this is a
+			 * "correcter" place for last_sent_to.  --xguo
+			 */
+			asoc->peer.last_sent_to = tp;
 	}
 
 	if (has_data) {
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 1b4a7f8..379c81d 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -667,6 +667,7 @@ redo:
 				chunk->fast_retransmit = SCTP_DONT_FRTX;
 
 			q->empty = 0;
+			q->asoc->stats.rtxchunks++;
 			break;
 		}
 
@@ -876,12 +877,14 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 			if (status  != SCTP_XMIT_OK) {
 				/* put the chunk back */
 				list_add(&chunk->list, &q->control_chunk_list);
-			} else if (chunk->chunk_hdr->type == SCTP_CID_FWD_TSN) {
+			} else {
+				asoc->stats.octrlchunks++;
 				/* PR-SCTP C5) If a FORWARD TSN is sent, the
 				 * sender MUST assure that at least one T3-rtx
 				 * timer is running.
 				 */
-				sctp_transport_reset_timers(transport);
+				if (chunk->chunk_hdr->type == SCTP_CID_FWD_TSN)
+					sctp_transport_reset_timers(transport);
 			}
 			break;
 
@@ -1055,6 +1058,10 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 				 */
 				if (asoc->state == SCTP_STATE_SHUTDOWN_PENDING)
 					chunk->chunk_hdr->flags |= SCTP_DATA_SACK_IMM;
+				if (chunk->chunk_hdr->flags & SCTP_DATA_UNORDERED)
+					asoc->stats.ouodchunks++;
+				else
+					asoc->stats.oodchunks++;
 
 				break;
 
@@ -1162,6 +1169,7 @@ int sctp_outq_sack(struct sctp_outq *q, struct sctp_chunk *chunk)
 
 	sack_ctsn = ntohl(sack->cum_tsn_ack);
 	gap_ack_blocks = ntohs(sack->num_gap_ack_blocks);
+	asoc->stats.gapcnt += gap_ack_blocks;
 	/*
 	 * SFR-CACC algorithm:
 	 * On receipt of a SACK the sender SHOULD execute the
diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index 9966e7b..8c19e97 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -139,7 +139,11 @@ static void sctp_seq_dump_local_addrs(struct seq_file *seq, struct sctp_ep_commo
 	    primary = &peer->saddr;
 	}
 
-	list_for_each_entry(laddr, &epb->bind_addr.address_list, list) {
+	rcu_read_lock();
+	list_for_each_entry_rcu(laddr, &epb->bind_addr.address_list, list) {
+		if (!laddr->valid)
+			continue;
+
 		addr = &laddr->a;
 		af = sctp_get_af_specific(addr->sa.sa_family);
 		if (primary && af->cmp_addr(addr, primary)) {
@@ -147,6 +151,7 @@ static void sctp_seq_dump_local_addrs(struct seq_file *seq, struct sctp_ep_commo
 		}
 		af->seq_dump_addr(seq, addr);
 	}
+	rcu_read_unlock();
 }
 
 /* Dump remote addresses of an association. */
@@ -157,15 +162,20 @@ static void sctp_seq_dump_remote_addrs(struct seq_file *seq, struct sctp_associa
 	struct sctp_af *af;
 
 	primary = &assoc->peer.primary_addr;
-	list_for_each_entry(transport, &assoc->peer.transport_addr_list,
+	rcu_read_lock();
+	list_for_each_entry_rcu(transport, &assoc->peer.transport_addr_list,
 			transports) {
 		addr = &transport->ipaddr;
+		if (transport->dead)
+			continue;
+
 		af = sctp_get_af_specific(addr->sa.sa_family);
 		if (af->cmp_addr(addr, primary)) {
 			seq_printf(seq, "*");
 		}
 		af->seq_dump_addr(seq, addr);
 	}
+	rcu_read_unlock();
 }
 
 static void * sctp_eps_seq_start(struct seq_file *seq, loff_t *pos)
@@ -436,12 +446,16 @@ static int sctp_remaddr_seq_show(struct seq_file *seq, void *v)
 	head = &sctp_assoc_hashtable[hash];
 	sctp_local_bh_disable();
 	read_lock(&head->lock);
+	rcu_read_lock();
 	sctp_for_each_hentry(epb, node, &head->chain) {
 		if (!net_eq(sock_net(epb->sk), seq_file_net(seq)))
 			continue;
 		assoc = sctp_assoc(epb);
-		list_for_each_entry(tsp, &assoc->peer.transport_addr_list,
+		list_for_each_entry_rcu(tsp, &assoc->peer.transport_addr_list,
 					transports) {
+			if (tsp->dead)
+				continue;
+
 			/*
 			 * The remote address (ADDR)
 			 */
@@ -487,6 +501,7 @@ static int sctp_remaddr_seq_show(struct seq_file *seq, void *v)
 		}
 	}
 
+	rcu_read_unlock();
 	read_unlock(&head->lock);
 	sctp_local_bh_enable();
 
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 2d51842..2c7785b 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -86,7 +86,7 @@ int sysctl_sctp_rmem[3];
 int sysctl_sctp_wmem[3];
 
 /* Set up the proc fs entry for the SCTP protocol. */
-static __net_init int sctp_proc_init(struct net *net)
+static int __net_init sctp_proc_init(struct net *net)
 {
 #ifdef CONFIG_PROC_FS
 	net->sctp.proc_net_sctp = proc_net_mkdir(net, "sctp", net->proc_net);
@@ -1165,7 +1165,7 @@ static void sctp_v4_del_protocol(void)
 	unregister_inetaddr_notifier(&sctp_inetaddr_notifier);
 }
 
-static int sctp_net_init(struct net *net)
+static int __net_init sctp_net_init(struct net *net)
 {
 	int status;
 
@@ -1190,6 +1190,15 @@ static int sctp_net_init(struct net *net)
 	/* Whether Cookie Preservative is enabled(1) or not(0) */
 	net->sctp.cookie_preserve_enable 	= 1;
 
+	/* Default sctp sockets to use md5 as their hmac alg */
+#if defined (CONFIG_CRYPTO_MD5)
+	net->sctp.sctp_hmac_alg			= "md5";
+#elif defined (CONFIG_CRYPTO_SHA1)
+	net->sctp.sctp_hmac_alg			= "sha1";
+#else
+	net->sctp.sctp_hmac_alg			= NULL;
+#endif
+
 	/* Max.Burst		    - 4 */
 	net->sctp.max_burst			= SCTP_DEFAULT_MAX_BURST;
 
@@ -1281,7 +1290,7 @@ err_sysctl_register:
 	return status;
 }
 
-static void sctp_net_exit(struct net *net)
+static void __net_exit sctp_net_exit(struct net *net)
 {
 	/* Free the local address list */
 	sctp_free_addr_wq(net);
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index fbe1636..e1c5fc2 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -804,10 +804,11 @@ struct sctp_chunk *sctp_make_sack(const struct sctp_association *asoc)
 				 gabs);
 
 	/* Add the duplicate TSN information.  */
-	if (num_dup_tsns)
+	if (num_dup_tsns) {
+		aptr->stats.idupchunks += num_dup_tsns;
 		sctp_addto_chunk(retval, sizeof(__u32) * num_dup_tsns,
 				 sctp_tsnmap_get_dups(map));
-
+	}
 	/* Once we have a sack generated, check to see what our sack
 	 * generation is, if its 0, reset the transports to 0, and reset
 	 * the association generation to 1
@@ -1090,6 +1091,25 @@ nodata:
 	return retval;
 }
 
+struct sctp_chunk *sctp_make_violation_max_retrans(
+	const struct sctp_association *asoc,
+	const struct sctp_chunk *chunk)
+{
+	struct sctp_chunk *retval;
+	static const char error[] = "Association exceeded its max_retans count";
+	size_t payload_len = sizeof(error) + sizeof(sctp_errhdr_t);
+
+	retval = sctp_make_abort(asoc, chunk, payload_len);
+	if (!retval)
+		goto nodata;
+
+	sctp_init_cause(retval, SCTP_ERROR_PROTO_VIOLATION, sizeof(error));
+	sctp_addto_chunk(retval, sizeof(error), error);
+
+nodata:
+	return retval;
+}
+
 /* Make a HEARTBEAT chunk.  */
 struct sctp_chunk *sctp_make_heartbeat(const struct sctp_association *asoc,
 				  const struct sctp_transport *transport)
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 6773d78..c957775 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -542,6 +542,7 @@ static void sctp_do_8_2_transport_strike(sctp_cmd_seq_t *commands,
 	 */
 	if (!is_hb || transport->hb_sent) {
 		transport->rto = min((transport->rto * 2), transport->asoc->rto_max);
+		sctp_max_rto(asoc, transport);
 	}
 }
 
@@ -577,7 +578,7 @@ static void sctp_cmd_assoc_failed(sctp_cmd_seq_t *commands,
 				  unsigned int error)
 {
 	struct sctp_ulpevent *event;
-
+	struct sctp_chunk *abort;
 	/* Cancel any partial delivery in progress. */
 	sctp_ulpq_abort_pd(&asoc->ulpq, GFP_ATOMIC);
 
@@ -593,6 +594,13 @@ static void sctp_cmd_assoc_failed(sctp_cmd_seq_t *commands,
 		sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP,
 				SCTP_ULPEVENT(event));
 
+	if (asoc->overall_error_count >= asoc->max_retrans) {
+		abort = sctp_make_violation_max_retrans(asoc, chunk);
+		if (abort)
+			sctp_add_cmd_sf(commands, SCTP_CMD_REPLY,
+					SCTP_CHUNK(abort));
+	}
+
 	sctp_add_cmd_sf(commands, SCTP_CMD_NEW_STATE,
 			SCTP_STATE(SCTP_STATE_CLOSED));
 
@@ -1268,14 +1276,14 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 				sctp_outq_uncork(&asoc->outqueue);
 				local_cork = 0;
 			}
-			asoc = cmd->obj.ptr;
+			asoc = cmd->obj.asoc;
 			/* Register with the endpoint.  */
 			sctp_endpoint_add_asoc(ep, asoc);
 			sctp_hash_established(asoc);
 			break;
 
 		case SCTP_CMD_UPDATE_ASSOC:
-		       sctp_assoc_update(asoc, cmd->obj.ptr);
+		       sctp_assoc_update(asoc, cmd->obj.asoc);
 		       break;
 
 		case SCTP_CMD_PURGE_OUTQUEUE:
@@ -1315,7 +1323,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 			break;
 
 		case SCTP_CMD_PROCESS_FWDTSN:
-			sctp_cmd_process_fwdtsn(&asoc->ulpq, cmd->obj.ptr);
+			sctp_cmd_process_fwdtsn(&asoc->ulpq, cmd->obj.chunk);
 			break;
 
 		case SCTP_CMD_GEN_SACK:
@@ -1331,7 +1339,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 		case SCTP_CMD_PROCESS_SACK:
 			/* Process an inbound SACK.  */
 			error = sctp_cmd_process_sack(commands, asoc,
-						      cmd->obj.ptr);
+						      cmd->obj.chunk);
 			break;
 
 		case SCTP_CMD_GEN_INIT_ACK:
@@ -1352,15 +1360,15 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 			 * layer which will bail.
 			 */
 			error = sctp_cmd_process_init(commands, asoc, chunk,
-						      cmd->obj.ptr, gfp);
+						      cmd->obj.init, gfp);
 			break;
 
 		case SCTP_CMD_GEN_COOKIE_ECHO:
 			/* Generate a COOKIE ECHO chunk.  */
 			new_obj = sctp_make_cookie_echo(asoc, chunk);
 			if (!new_obj) {
-				if (cmd->obj.ptr)
-					sctp_chunk_free(cmd->obj.ptr);
+				if (cmd->obj.chunk)
+					sctp_chunk_free(cmd->obj.chunk);
 				goto nomem;
 			}
 			sctp_add_cmd_sf(commands, SCTP_CMD_REPLY,
@@ -1369,9 +1377,9 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 			/* If there is an ERROR chunk to be sent along with
 			 * the COOKIE_ECHO, send it, too.
 			 */
-			if (cmd->obj.ptr)
+			if (cmd->obj.chunk)
 				sctp_add_cmd_sf(commands, SCTP_CMD_REPLY,
-						SCTP_CHUNK(cmd->obj.ptr));
+						SCTP_CHUNK(cmd->obj.chunk));
 
 			if (new_obj->transport) {
 				new_obj->transport->init_sent_count++;
@@ -1417,18 +1425,18 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 		case SCTP_CMD_CHUNK_ULP:
 			/* Send a chunk to the sockets layer.  */
 			SCTP_DEBUG_PRINTK("sm_sideff: %s %p, %s %p.\n",
-					  "chunk_up:", cmd->obj.ptr,
+					  "chunk_up:", cmd->obj.chunk,
 					  "ulpq:", &asoc->ulpq);
-			sctp_ulpq_tail_data(&asoc->ulpq, cmd->obj.ptr,
+			sctp_ulpq_tail_data(&asoc->ulpq, cmd->obj.chunk,
 					    GFP_ATOMIC);
 			break;
 
 		case SCTP_CMD_EVENT_ULP:
 			/* Send a notification to the sockets layer.  */
 			SCTP_DEBUG_PRINTK("sm_sideff: %s %p, %s %p.\n",
-					  "event_up:",cmd->obj.ptr,
+					  "event_up:",cmd->obj.ulpevent,
 					  "ulpq:",&asoc->ulpq);
-			sctp_ulpq_tail_event(&asoc->ulpq, cmd->obj.ptr);
+			sctp_ulpq_tail_event(&asoc->ulpq, cmd->obj.ulpevent);
 			break;
 
 		case SCTP_CMD_REPLY:
@@ -1438,12 +1446,12 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 				local_cork = 1;
 			}
 			/* Send a chunk to our peer.  */
-			error = sctp_outq_tail(&asoc->outqueue, cmd->obj.ptr);
+			error = sctp_outq_tail(&asoc->outqueue, cmd->obj.chunk);
 			break;
 
 		case SCTP_CMD_SEND_PKT:
 			/* Send a full packet to our peer.  */
-			packet = cmd->obj.ptr;
+			packet = cmd->obj.packet;
 			sctp_packet_transmit(packet);
 			sctp_ootb_pkt_free(packet);
 			break;
@@ -1480,7 +1488,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 			break;
 
 		case SCTP_CMD_SETUP_T2:
-			sctp_cmd_setup_t2(commands, asoc, cmd->obj.ptr);
+			sctp_cmd_setup_t2(commands, asoc, cmd->obj.chunk);
 			break;
 
 		case SCTP_CMD_TIMER_START_ONCE:
@@ -1514,7 +1522,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 			break;
 
 		case SCTP_CMD_INIT_CHOOSE_TRANSPORT:
-			chunk = cmd->obj.ptr;
+			chunk = cmd->obj.chunk;
 			t = sctp_assoc_choose_alter_transport(asoc,
 						asoc->init_last_sent_to);
 			asoc->init_last_sent_to = t;
@@ -1665,17 +1673,16 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 			break;
 
 		case SCTP_CMD_PART_DELIVER:
-			sctp_ulpq_partial_delivery(&asoc->ulpq, cmd->obj.ptr,
-						   GFP_ATOMIC);
+			sctp_ulpq_partial_delivery(&asoc->ulpq, GFP_ATOMIC);
 			break;
 
 		case SCTP_CMD_RENEGE:
-			sctp_ulpq_renege(&asoc->ulpq, cmd->obj.ptr,
+			sctp_ulpq_renege(&asoc->ulpq, cmd->obj.chunk,
 					 GFP_ATOMIC);
 			break;
 
 		case SCTP_CMD_SETUP_T4:
-			sctp_cmd_setup_t4(commands, asoc, cmd->obj.ptr);
+			sctp_cmd_setup_t4(commands, asoc, cmd->obj.chunk);
 			break;
 
 		case SCTP_CMD_PROCESS_OPERR:
@@ -1734,8 +1741,8 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 			break;
 
 		default:
-			pr_warn("Impossible command: %u, %p\n",
-				cmd->verb, cmd->obj.ptr);
+			pr_warn("Impossible command: %u\n",
+				cmd->verb);
 			break;
 		}
 
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index b6adef8..ebcd1ee 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -1055,6 +1055,7 @@ sctp_disposition_t sctp_sf_beat_8_3(struct net *net,
 				    void *arg,
 				    sctp_cmd_seq_t *commands)
 {
+	sctp_paramhdr_t *param_hdr;
 	struct sctp_chunk *chunk = arg;
 	struct sctp_chunk *reply;
 	size_t paylen = 0;
@@ -1072,12 +1073,17 @@ sctp_disposition_t sctp_sf_beat_8_3(struct net *net,
 	 * Information field copied from the received HEARTBEAT chunk.
 	 */
 	chunk->subh.hb_hdr = (sctp_heartbeathdr_t *) chunk->skb->data;
+	param_hdr = (sctp_paramhdr_t *) chunk->subh.hb_hdr;
 	paylen = ntohs(chunk->chunk_hdr->length) - sizeof(sctp_chunkhdr_t);
+
+	if (ntohs(param_hdr->length) > paylen)
+		return sctp_sf_violation_paramlen(net, ep, asoc, type, arg,
+						  param_hdr, commands);
+
 	if (!pskb_pull(chunk->skb, paylen))
 		goto nomem;
 
-	reply = sctp_make_heartbeat_ack(asoc, chunk,
-					chunk->subh.hb_hdr, paylen);
+	reply = sctp_make_heartbeat_ack(asoc, chunk, param_hdr, paylen);
 	if (!reply)
 		goto nomem;
 
@@ -6127,6 +6133,8 @@ static int sctp_eat_data(const struct sctp_association *asoc,
 		/* The TSN is too high--silently discard the chunk and
 		 * count on it getting retransmitted later.
 		 */
+		if (chunk->asoc)
+			chunk->asoc->stats.outofseqtsns++;
 		return SCTP_IERROR_HIGH_TSN;
 	} else if (tmp > 0) {
 		/* This is a duplicate.  Record it.  */
@@ -6226,10 +6234,14 @@ static int sctp_eat_data(const struct sctp_association *asoc,
 	/* Note: Some chunks may get overcounted (if we drop) or overcounted
 	 * if we renege and the chunk arrives again.
 	 */
-	if (chunk->chunk_hdr->flags & SCTP_DATA_UNORDERED)
+	if (chunk->chunk_hdr->flags & SCTP_DATA_UNORDERED) {
 		SCTP_INC_STATS(net, SCTP_MIB_INUNORDERCHUNKS);
-	else {
+		if (chunk->asoc)
+			chunk->asoc->stats.iuodchunks++;
+	} else {
 		SCTP_INC_STATS(net, SCTP_MIB_INORDERCHUNKS);
+		if (chunk->asoc)
+			chunk->asoc->stats.iodchunks++;
 		ordered = 1;
 	}
 
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 406d957..9e65758 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -110,7 +110,6 @@ static int sctp_do_bind(struct sock *, union sctp_addr *, int);
 static int sctp_autobind(struct sock *sk);
 static void sctp_sock_migrate(struct sock *, struct sock *,
 			      struct sctp_association *, sctp_socket_type_t);
-static char *sctp_hmac_alg = SCTP_COOKIE_HMAC_ALG;
 
 extern struct kmem_cache *sctp_bucket_cachep;
 extern long sysctl_sctp_mem[3];
@@ -336,6 +335,7 @@ static struct sctp_af *sctp_sockaddr_af(struct sctp_sock *opt,
 /* Bind a local address either to an endpoint or to an association.  */
 SCTP_STATIC int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len)
 {
+	struct net *net = sock_net(sk);
 	struct sctp_sock *sp = sctp_sk(sk);
 	struct sctp_endpoint *ep = sp->ep;
 	struct sctp_bind_addr *bp = &ep->base.bind_addr;
@@ -379,7 +379,8 @@ SCTP_STATIC int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len)
 		}
 	}
 
-	if (snum && snum < PROT_SOCK && !capable(CAP_NET_BIND_SERVICE))
+	if (snum && snum < PROT_SOCK &&
+	    !ns_capable(net->user_ns, CAP_NET_BIND_SERVICE))
 		return -EACCES;
 
 	/* See if the address matches any of the addresses we may have
@@ -610,6 +611,7 @@ static int sctp_send_asconf_add_ip(struct sock		*sk,
 				    2*asoc->pathmtu, 4380));
 				trans->ssthresh = asoc->peer.i.a_rwnd;
 				trans->rto = asoc->rto_initial;
+				sctp_max_rto(asoc, trans);
 				trans->rtt = trans->srtt = trans->rttvar = 0;
 				sctp_transport_route(trans, NULL,
 				    sctp_sk(asoc->base.sk));
@@ -1162,7 +1164,7 @@ static int __sctp_connect(struct sock* sk,
 				 * be permitted to open new associations.
 				 */
 				if (ep->base.bind_addr.port < PROT_SOCK &&
-				    !capable(CAP_NET_BIND_SERVICE)) {
+				    !ns_capable(net->user_ns, CAP_NET_BIND_SERVICE)) {
 					err = -EACCES;
 					goto out_free;
 				}
@@ -1791,7 +1793,7 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 			 * associations.
 			 */
 			if (ep->base.bind_addr.port < PROT_SOCK &&
-			    !capable(CAP_NET_BIND_SERVICE)) {
+			    !ns_capable(net->user_ns, CAP_NET_BIND_SERVICE)) {
 				err = -EACCES;
 				goto out_unlock;
 			}
@@ -3890,6 +3892,8 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
 	sp->default_rcv_context = 0;
 	sp->max_burst = net->sctp.max_burst;
 
+	sp->sctp_hmac_alg = net->sctp.sctp_hmac_alg;
+
 	/* Initialize default setup parameters. These parameters
 	 * can be modified with the SCTP_INITMSG socket option or
 	 * overridden by the SCTP_INIT CMSG.
@@ -5632,6 +5636,71 @@ static int sctp_getsockopt_paddr_thresholds(struct sock *sk,
 	return 0;
 }
 
+/*
+ * SCTP_GET_ASSOC_STATS
+ *
+ * This option retrieves local per endpoint statistics. It is modeled
+ * after OpenSolaris' implementation
+ */
+static int sctp_getsockopt_assoc_stats(struct sock *sk, int len,
+				       char __user *optval,
+				       int __user *optlen)
+{
+	struct sctp_assoc_stats sas;
+	struct sctp_association *asoc = NULL;
+
+	/* User must provide at least the assoc id */
+	if (len < sizeof(sctp_assoc_t))
+		return -EINVAL;
+
+	if (copy_from_user(&sas, optval, len))
+		return -EFAULT;
+
+	asoc = sctp_id2assoc(sk, sas.sas_assoc_id);
+	if (!asoc)
+		return -EINVAL;
+
+	sas.sas_rtxchunks = asoc->stats.rtxchunks;
+	sas.sas_gapcnt = asoc->stats.gapcnt;
+	sas.sas_outofseqtsns = asoc->stats.outofseqtsns;
+	sas.sas_osacks = asoc->stats.osacks;
+	sas.sas_isacks = asoc->stats.isacks;
+	sas.sas_octrlchunks = asoc->stats.octrlchunks;
+	sas.sas_ictrlchunks = asoc->stats.ictrlchunks;
+	sas.sas_oodchunks = asoc->stats.oodchunks;
+	sas.sas_iodchunks = asoc->stats.iodchunks;
+	sas.sas_ouodchunks = asoc->stats.ouodchunks;
+	sas.sas_iuodchunks = asoc->stats.iuodchunks;
+	sas.sas_idupchunks = asoc->stats.idupchunks;
+	sas.sas_opackets = asoc->stats.opackets;
+	sas.sas_ipackets = asoc->stats.ipackets;
+
+	/* New high max rto observed, will return 0 if not a single
+	 * RTO update took place. obs_rto_ipaddr will be bogus
+	 * in such a case
+	 */
+	sas.sas_maxrto = asoc->stats.max_obs_rto;
+	memcpy(&sas.sas_obs_rto_ipaddr, &asoc->stats.obs_rto_ipaddr,
+		sizeof(struct sockaddr_storage));
+
+	/* Mark beginning of a new observation period */
+	asoc->stats.max_obs_rto = asoc->rto_min;
+
+	/* Allow the struct to grow and fill in as much as possible */
+	len = min_t(size_t, len, sizeof(sas));
+
+	if (put_user(len, optlen))
+		return -EFAULT;
+
+	SCTP_DEBUG_PRINTK("sctp_getsockopt_assoc_stat(%d): %d\n",
+			  len, sas.sas_assoc_id);
+
+	if (copy_to_user(optval, &sas, len))
+		return -EFAULT;
+
+	return 0;
+}
+
 SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
 				char __user *optval, int __user *optlen)
 {
@@ -5773,6 +5842,9 @@ SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
 	case SCTP_PEER_ADDR_THLDS:
 		retval = sctp_getsockopt_paddr_thresholds(sk, optval, len, optlen);
 		break;
+	case SCTP_GET_ASSOC_STATS:
+		retval = sctp_getsockopt_assoc_stats(sk, len, optval, optlen);
+		break;
 	default:
 		retval = -ENOPROTOOPT;
 		break;
@@ -5981,13 +6053,15 @@ SCTP_STATIC int sctp_listen_start(struct sock *sk, int backlog)
 	struct sctp_sock *sp = sctp_sk(sk);
 	struct sctp_endpoint *ep = sp->ep;
 	struct crypto_hash *tfm = NULL;
+	char alg[32];
 
 	/* Allocate HMAC for generating cookie. */
-	if (!sctp_sk(sk)->hmac && sctp_hmac_alg) {
-		tfm = crypto_alloc_hash(sctp_hmac_alg, 0, CRYPTO_ALG_ASYNC);
+	if (!sp->hmac && sp->sctp_hmac_alg) {
+		sprintf(alg, "hmac(%s)", sp->sctp_hmac_alg);
+		tfm = crypto_alloc_hash(alg, 0, CRYPTO_ALG_ASYNC);
 		if (IS_ERR(tfm)) {
 			net_info_ratelimited("failed to load transform for %s: %ld\n",
-					     sctp_hmac_alg, PTR_ERR(tfm));
+					     sp->sctp_hmac_alg, PTR_ERR(tfm));
 			return -ENOSYS;
 		}
 		sctp_sk(sk)->hmac = tfm;
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index 70e3ba5..043889a 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -62,6 +62,11 @@ extern long sysctl_sctp_mem[3];
 extern int sysctl_sctp_rmem[3];
 extern int sysctl_sctp_wmem[3];
 
+static int proc_sctp_do_hmac_alg(ctl_table *ctl,
+				int write,
+				void __user *buffer, size_t *lenp,
+
+				loff_t *ppos);
 static ctl_table sctp_table[] = {
 	{
 		.procname	= "sctp_mem",
@@ -147,6 +152,12 @@ static ctl_table sctp_net_table[] = {
 		.proc_handler	= proc_dointvec,
 	},
 	{
+		.procname	= "cookie_hmac_alg",
+		.maxlen		= 8,
+		.mode		= 0644,
+		.proc_handler	= proc_sctp_do_hmac_alg,
+	},
+	{
 		.procname	= "valid_cookie_life",
 		.data		= &init_net.sctp.valid_cookie_life,
 		.maxlen		= sizeof(unsigned int),
@@ -289,6 +300,54 @@ static ctl_table sctp_net_table[] = {
 	{ /* sentinel */ }
 };
 
+static int proc_sctp_do_hmac_alg(ctl_table *ctl,
+				int write,
+				void __user *buffer, size_t *lenp,
+				loff_t *ppos)
+{
+	struct net *net = current->nsproxy->net_ns;
+	char tmp[8];
+	ctl_table tbl;
+	int ret;
+	int changed = 0;
+	char *none = "none";
+
+	memset(&tbl, 0, sizeof(struct ctl_table));
+
+	if (write) {
+		tbl.data = tmp;
+		tbl.maxlen = 8;
+	} else {
+		tbl.data = net->sctp.sctp_hmac_alg ? : none;
+		tbl.maxlen = strlen(tbl.data);
+	}
+		ret = proc_dostring(&tbl, write, buffer, lenp, ppos);
+
+	if (write) {
+#ifdef CONFIG_CRYPTO_MD5
+		if (!strncmp(tmp, "md5", 3)) {
+			net->sctp.sctp_hmac_alg = "md5";
+			changed = 1;
+		}
+#endif
+#ifdef CONFIG_CRYPTO_SHA1
+		if (!strncmp(tmp, "sha1", 4)) {
+			net->sctp.sctp_hmac_alg = "sha1";
+			changed = 1;
+		}
+#endif
+		if (!strncmp(tmp, "none", 4)) {
+			net->sctp.sctp_hmac_alg = NULL;
+			changed = 1;
+		}
+
+		if (!changed)
+			ret = -EINVAL;
+	}
+
+	return ret;
+}
+
 int sctp_sysctl_net_register(struct net *net)
 {
 	struct ctl_table *table;
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 206cf52..4e45bb6 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -163,13 +163,11 @@ void sctp_transport_free(struct sctp_transport *transport)
 	sctp_transport_put(transport);
 }
 
-/* Destroy the transport data structure.
- * Assumes there are no more users of this structure.
- */
-static void sctp_transport_destroy(struct sctp_transport *transport)
+static void sctp_transport_destroy_rcu(struct rcu_head *head)
 {
-	SCTP_ASSERT(transport->dead, "Transport is not dead", return);
+	struct sctp_transport *transport;
 
+	transport = container_of(head, struct sctp_transport, rcu);
 	if (transport->asoc)
 		sctp_association_put(transport->asoc);
 
@@ -180,6 +178,16 @@ static void sctp_transport_destroy(struct sctp_transport *transport)
 	SCTP_DBG_OBJCNT_DEC(transport);
 }
 
+/* Destroy the transport data structure.
+ * Assumes there are no more users of this structure.
+ */
+static void sctp_transport_destroy(struct sctp_transport *transport)
+{
+	SCTP_ASSERT(transport->dead, "Transport is not dead", return);
+
+	call_rcu(&transport->rcu, sctp_transport_destroy_rcu);
+}
+
 /* Start T3_rtx timer if it is not already running and update the heartbeat
  * timer.  This routine is called every time a DATA chunk is sent.
  */
@@ -363,6 +371,7 @@ void sctp_transport_update_rto(struct sctp_transport *tp, __u32 rtt)
 	if (tp->rto > tp->asoc->rto_max)
 		tp->rto = tp->asoc->rto_max;
 
+	sctp_max_rto(tp->asoc, tp);
 	tp->rtt = rtt;
 
 	/* Reset rto_pending so that a new RTT measurement is started when a
@@ -620,6 +629,7 @@ void sctp_transport_reset(struct sctp_transport *t)
 	t->burst_limited = 0;
 	t->ssthresh = asoc->peer.i.a_rwnd;
 	t->rto = asoc->rto_initial;
+	sctp_max_rto(asoc, t);
 	t->rtt = 0;
 	t->srtt = 0;
 	t->rttvar = 0;
diff --git a/net/sctp/tsnmap.c b/net/sctp/tsnmap.c
index b5fb7c40..5f25e0c 100644
--- a/net/sctp/tsnmap.c
+++ b/net/sctp/tsnmap.c
@@ -272,7 +272,7 @@ __u16 sctp_tsnmap_pending(struct sctp_tsnmap *map)
 	__u32 max_tsn = map->max_tsn_seen;
 	__u32 base_tsn = map->base_tsn;
 	__u16 pending_data;
-	u32 gap, i;
+	u32 gap;
 
 	pending_data = max_tsn - cum_tsn;
 	gap = max_tsn - base_tsn;
@@ -280,11 +280,7 @@ __u16 sctp_tsnmap_pending(struct sctp_tsnmap *map)
 	if (gap == 0 || gap >= map->len)
 		goto out;
 
-	for (i = 0; i < gap+1; i++) {
-		if (test_bit(i, map->tsn_map))
-			pending_data--;
-	}
-
+	pending_data -= bitmap_weight(map->tsn_map, gap + 1);
 out:
 	return pending_data;
 }
diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c
index 360d869..ada1746 100644
--- a/net/sctp/ulpqueue.c
+++ b/net/sctp/ulpqueue.c
@@ -997,7 +997,6 @@ static __u16 sctp_ulpq_renege_frags(struct sctp_ulpq *ulpq, __u16 needed)
 
 /* Partial deliver the first message as there is pressure on rwnd. */
 void sctp_ulpq_partial_delivery(struct sctp_ulpq *ulpq,
-				struct sctp_chunk *chunk,
 				gfp_t gfp)
 {
 	struct sctp_ulpevent *event;
@@ -1060,7 +1059,7 @@ void sctp_ulpq_renege(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk,
 		sctp_tsnmap_mark(&asoc->peer.tsn_map, tsn, chunk->transport);
 		sctp_ulpq_tail_data(ulpq, chunk, gfp);
 
-		sctp_ulpq_partial_delivery(ulpq, chunk, gfp);
+		sctp_ulpq_partial_delivery(ulpq, gfp);
 	}
 
 	sk_mem_reclaim(asoc->base.sk);
diff --git a/net/socket.c b/net/socket.c
index d92c490..2ca51c7 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -620,8 +620,6 @@ static inline int __sock_sendmsg_nosec(struct kiocb *iocb, struct socket *sock,
 {
 	struct sock_iocb *si = kiocb_to_siocb(iocb);
 
-	sock_update_classid(sock->sk);
-
 	si->sock = sock;
 	si->scm = NULL;
 	si->msg = msg;
@@ -784,8 +782,6 @@ static inline int __sock_recvmsg_nosec(struct kiocb *iocb, struct socket *sock,
 {
 	struct sock_iocb *si = kiocb_to_siocb(iocb);
 
-	sock_update_classid(sock->sk);
-
 	si->sock = sock;
 	si->scm = NULL;
 	si->msg = msg;
@@ -896,8 +892,6 @@ static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
 	if (unlikely(!sock->ops->splice_read))
 		return -EINVAL;
 
-	sock_update_classid(sock->sk);
-
 	return sock->ops->splice_read(sock, ppos, pipe, len, flags);
 }
 
@@ -3437,8 +3431,6 @@ EXPORT_SYMBOL(kernel_setsockopt);
 int kernel_sendpage(struct socket *sock, struct page *page, int offset,
 		    size_t size, int flags)
 {
-	sock_update_classid(sock->sk);
-
 	if (sock->ops->sendpage)
 		return sock->ops->sendpage(sock, page, offset, size, flags);
 
diff --git a/net/sysctl_net.c b/net/sysctl_net.c
index e3a6e37..9bc6db04 100644
--- a/net/sysctl_net.c
+++ b/net/sysctl_net.c
@@ -38,15 +38,24 @@ static int is_seen(struct ctl_table_set *set)
 }
 
 /* Return standard mode bits for table entry. */
-static int net_ctl_permissions(struct ctl_table_root *root,
-			       struct nsproxy *nsproxy,
+static int net_ctl_permissions(struct ctl_table_header *head,
 			       struct ctl_table *table)
 {
+	struct net *net = container_of(head->set, struct net, sysctls);
+	kuid_t root_uid = make_kuid(net->user_ns, 0);
+	kgid_t root_gid = make_kgid(net->user_ns, 0);
+
 	/* Allow network administrator to have same access as root. */
-	if (capable(CAP_NET_ADMIN)) {
+	if (ns_capable(net->user_ns, CAP_NET_ADMIN) ||
+	    uid_eq(root_uid, current_uid())) {
 		int mode = (table->mode >> 6) & 7;
 		return (mode << 6) | (mode << 3) | mode;
 	}
+	/* Allow netns root group to have the same access as the root group */
+	if (gid_eq(root_gid, current_gid())) {
+		int mode = (table->mode >> 3) & 7;
+		return (mode << 3) | mode;
+	}
 	return table->mode;
 }
 
diff --git a/net/tipc/Kconfig b/net/tipc/Kconfig
index 5854601..bc41bd3 100644
--- a/net/tipc/Kconfig
+++ b/net/tipc/Kconfig
@@ -20,18 +20,9 @@ menuconfig TIPC
 
 	  If in doubt, say N.
 
-if TIPC
-
-config TIPC_ADVANCED
-	bool "Advanced TIPC configuration"
-	default n
-	help
-	  Saying Y here will open some advanced configuration for TIPC.
-	  Most users do not need to bother; if unsure, just say N.
-
 config TIPC_PORTS
 	int "Maximum number of ports in a node"
-	depends on TIPC_ADVANCED
+	depends on TIPC
 	range 127 65535
 	default "8191"
 	help
@@ -40,5 +31,3 @@ config TIPC_PORTS
 
 	  Setting this to a smaller value saves some memory,
 	  setting it to higher allows for more ports.
-
-endif # TIPC
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index e4e6d8c..54f89f9 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -347,7 +347,7 @@ static void bclink_peek_nack(struct tipc_msg *msg)
 
 	tipc_node_lock(n_ptr);
 
-	if (n_ptr->bclink.supported &&
+	if (n_ptr->bclink.recv_permitted &&
 	    (n_ptr->bclink.last_in != n_ptr->bclink.last_sent) &&
 	    (n_ptr->bclink.last_in == msg_bcgap_after(msg)))
 		n_ptr->bclink.oos_state = 2;
@@ -429,7 +429,7 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf)
 		goto exit;
 
 	tipc_node_lock(node);
-	if (unlikely(!node->bclink.supported))
+	if (unlikely(!node->bclink.recv_permitted))
 		goto unlock;
 
 	/* Handle broadcast protocol message */
@@ -564,7 +564,7 @@ exit:
 
 u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr)
 {
-	return (n_ptr->bclink.supported &&
+	return (n_ptr->bclink.recv_permitted &&
 		(tipc_bclink_get_last_sent() != n_ptr->bclink.acked));
 }
 
@@ -619,16 +619,14 @@ static int tipc_bcbearer_send(struct sk_buff *buf,
 		if (bcbearer->remains_new.count == bcbearer->remains.count)
 			continue;	/* bearer pair doesn't add anything */
 
-		if (p->blocked ||
-		    p->media->send_msg(buf, p, &p->media->bcast_addr)) {
+		if (!tipc_bearer_blocked(p))
+			tipc_bearer_send(p, buf, &p->media->bcast_addr);
+		else if (s && !tipc_bearer_blocked(s))
 			/* unable to send on primary bearer */
-			if (!s || s->blocked ||
-			    s->media->send_msg(buf, s,
-					       &s->media->bcast_addr)) {
-				/* unable to send on either bearer */
-				continue;
-			}
-		}
+			tipc_bearer_send(s, buf, &s->media->bcast_addr);
+		else
+			/* unable to send on either bearer */
+			continue;
 
 		if (s) {
 			bcbearer->bpairs[bp_index].primary = s;
@@ -731,8 +729,8 @@ int tipc_bclink_stats(char *buf, const u32 buf_size)
 			     "  TX naks:%u acks:%u dups:%u\n",
 			     s->sent_nacks, s->sent_acks, s->retransmitted);
 	ret += tipc_snprintf(buf + ret, buf_size - ret,
-			     "  Congestion bearer:%u link:%u  Send queue max:%u avg:%u\n",
-			     s->bearer_congs, s->link_congs, s->max_queue_sz,
+			     "  Congestion link:%u  Send queue max:%u avg:%u\n",
+			     s->link_congs, s->max_queue_sz,
 			     s->queue_sz_counts ?
 			     (s->accu_queue_sz / s->queue_sz_counts) : 0);
 
@@ -766,7 +764,6 @@ int tipc_bclink_set_queue_limits(u32 limit)
 
 void tipc_bclink_init(void)
 {
-	INIT_LIST_HEAD(&bcbearer->bearer.cong_links);
 	bcbearer->bearer.media = &bcbearer->media;
 	bcbearer->media.send_msg = tipc_bcbearer_send;
 	sprintf(bcbearer->media.name, "tipc-broadcast");
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 4ec5c80..aa62f93 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -279,116 +279,31 @@ void tipc_bearer_remove_dest(struct tipc_bearer *b_ptr, u32 dest)
 }
 
 /*
- * bearer_push(): Resolve bearer congestion. Force the waiting
- * links to push out their unsent packets, one packet per link
- * per iteration, until all packets are gone or congestion reoccurs.
- * 'tipc_net_lock' is read_locked when this function is called
- * bearer.lock must be taken before calling
- * Returns binary true(1) ore false(0)
- */
-static int bearer_push(struct tipc_bearer *b_ptr)
-{
-	u32 res = 0;
-	struct tipc_link *ln, *tln;
-
-	if (b_ptr->blocked)
-		return 0;
-
-	while (!list_empty(&b_ptr->cong_links) && (res != PUSH_FAILED)) {
-		list_for_each_entry_safe(ln, tln, &b_ptr->cong_links, link_list) {
-			res = tipc_link_push_packet(ln);
-			if (res == PUSH_FAILED)
-				break;
-			if (res == PUSH_FINISHED)
-				list_move_tail(&ln->link_list, &b_ptr->links);
-		}
-	}
-	return list_empty(&b_ptr->cong_links);
-}
-
-void tipc_bearer_lock_push(struct tipc_bearer *b_ptr)
-{
-	spin_lock_bh(&b_ptr->lock);
-	bearer_push(b_ptr);
-	spin_unlock_bh(&b_ptr->lock);
-}
-
-
-/*
- * Interrupt enabling new requests after bearer congestion or blocking:
+ * Interrupt enabling new requests after bearer blocking:
  * See bearer_send().
  */
-void tipc_continue(struct tipc_bearer *b_ptr)
+void tipc_continue(struct tipc_bearer *b)
 {
-	spin_lock_bh(&b_ptr->lock);
-	if (!list_empty(&b_ptr->cong_links))
-		tipc_k_signal((Handler)tipc_bearer_lock_push, (unsigned long)b_ptr);
-	b_ptr->blocked = 0;
-	spin_unlock_bh(&b_ptr->lock);
+	spin_lock_bh(&b->lock);
+	b->blocked = 0;
+	spin_unlock_bh(&b->lock);
 }
 
 /*
- * Schedule link for sending of messages after the bearer
- * has been deblocked by 'continue()'. This method is called
- * when somebody tries to send a message via this link while
- * the bearer is congested. 'tipc_net_lock' is in read_lock here
- * bearer.lock is busy
+ * tipc_bearer_blocked - determines if bearer is currently blocked
  */
-static void tipc_bearer_schedule_unlocked(struct tipc_bearer *b_ptr,
-						struct tipc_link *l_ptr)
+int tipc_bearer_blocked(struct tipc_bearer *b)
 {
-	list_move_tail(&l_ptr->link_list, &b_ptr->cong_links);
-}
-
-/*
- * Schedule link for sending of messages after the bearer
- * has been deblocked by 'continue()'. This method is called
- * when somebody tries to send a message via this link while
- * the bearer is congested. 'tipc_net_lock' is in read_lock here,
- * bearer.lock is free
- */
-void tipc_bearer_schedule(struct tipc_bearer *b_ptr, struct tipc_link *l_ptr)
-{
-	spin_lock_bh(&b_ptr->lock);
-	tipc_bearer_schedule_unlocked(b_ptr, l_ptr);
-	spin_unlock_bh(&b_ptr->lock);
-}
-
+	int res;
 
-/*
- * tipc_bearer_resolve_congestion(): Check if there is bearer congestion,
- * and if there is, try to resolve it before returning.
- * 'tipc_net_lock' is read_locked when this function is called
- */
-int tipc_bearer_resolve_congestion(struct tipc_bearer *b_ptr,
-					struct tipc_link *l_ptr)
-{
-	int res = 1;
+	spin_lock_bh(&b->lock);
+	res = b->blocked;
+	spin_unlock_bh(&b->lock);
 
-	if (list_empty(&b_ptr->cong_links))
-		return 1;
-	spin_lock_bh(&b_ptr->lock);
-	if (!bearer_push(b_ptr)) {
-		tipc_bearer_schedule_unlocked(b_ptr, l_ptr);
-		res = 0;
-	}
-	spin_unlock_bh(&b_ptr->lock);
 	return res;
 }
 
 /**
- * tipc_bearer_congested - determines if bearer is currently congested
- */
-int tipc_bearer_congested(struct tipc_bearer *b_ptr, struct tipc_link *l_ptr)
-{
-	if (unlikely(b_ptr->blocked))
-		return 1;
-	if (likely(list_empty(&b_ptr->cong_links)))
-		return 0;
-	return !tipc_bearer_resolve_congestion(b_ptr, l_ptr);
-}
-
-/**
  * tipc_enable_bearer - enable bearer with the given name
  */
 int tipc_enable_bearer(const char *name, u32 disc_domain, u32 priority)
@@ -489,7 +404,6 @@ restart:
 	b_ptr->net_plane = bearer_id + 'A';
 	b_ptr->active = 1;
 	b_ptr->priority = priority;
-	INIT_LIST_HEAD(&b_ptr->cong_links);
 	INIT_LIST_HEAD(&b_ptr->links);
 	spin_lock_init(&b_ptr->lock);
 
@@ -528,7 +442,6 @@ int tipc_block_bearer(const char *name)
 	pr_info("Blocking bearer <%s>\n", name);
 	spin_lock_bh(&b_ptr->lock);
 	b_ptr->blocked = 1;
-	list_splice_init(&b_ptr->cong_links, &b_ptr->links);
 	list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) {
 		struct tipc_node *n_ptr = l_ptr->owner;
 
@@ -555,7 +468,6 @@ static void bearer_disable(struct tipc_bearer *b_ptr)
 	spin_lock_bh(&b_ptr->lock);
 	b_ptr->blocked = 1;
 	b_ptr->media->disable_bearer(b_ptr);
-	list_splice_init(&b_ptr->cong_links, &b_ptr->links);
 	list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) {
 		tipc_link_delete(l_ptr);
 	}
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index dd4c2ab..39f1192 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -120,7 +120,6 @@ struct tipc_media {
  * @identity: array index of this bearer within TIPC bearer array
  * @link_req: ptr to (optional) structure making periodic link setup requests
  * @links: list of non-congested links associated with bearer
- * @cong_links: list of congested links associated with bearer
  * @active: non-zero if bearer structure is represents a bearer
  * @net_plane: network plane ('A' through 'H') currently associated with bearer
  * @nodes: indicates which nodes in cluster can be reached through bearer
@@ -143,7 +142,6 @@ struct tipc_bearer {
 	u32 identity;
 	struct tipc_link_req *link_req;
 	struct list_head links;
-	struct list_head cong_links;
 	int active;
 	char net_plane;
 	struct tipc_node_map nodes;
@@ -185,39 +183,23 @@ struct sk_buff *tipc_media_get_names(void);
 struct sk_buff *tipc_bearer_get_names(void);
 void tipc_bearer_add_dest(struct tipc_bearer *b_ptr, u32 dest);
 void tipc_bearer_remove_dest(struct tipc_bearer *b_ptr, u32 dest);
-void tipc_bearer_schedule(struct tipc_bearer *b_ptr, struct tipc_link *l_ptr);
 struct tipc_bearer *tipc_bearer_find(const char *name);
 struct tipc_bearer *tipc_bearer_find_interface(const char *if_name);
 struct tipc_media *tipc_media_find(const char *name);
-int tipc_bearer_resolve_congestion(struct tipc_bearer *b_ptr,
-				   struct tipc_link *l_ptr);
-int tipc_bearer_congested(struct tipc_bearer *b_ptr, struct tipc_link *l_ptr);
+int tipc_bearer_blocked(struct tipc_bearer *b_ptr);
 void tipc_bearer_stop(void);
-void tipc_bearer_lock_push(struct tipc_bearer *b_ptr);
-
 
 /**
  * tipc_bearer_send- sends buffer to destination over bearer
  *
- * Returns true (1) if successful, or false (0) if unable to send
- *
  * IMPORTANT:
  * The media send routine must not alter the buffer being passed in
  * as it may be needed for later retransmission!
- *
- * If the media send routine returns a non-zero value (indicating that
- * it was unable to send the buffer), it must:
- *   1) mark the bearer as blocked,
- *   2) call tipc_continue() once the bearer is able to send again.
- * Media types that are unable to meet these two critera must ensure their
- * send routine always returns success -- even if the buffer was not sent --
- * and let TIPC's link code deal with the undelivered message.
  */
-static inline int tipc_bearer_send(struct tipc_bearer *b_ptr,
-				   struct sk_buff *buf,
+static inline void tipc_bearer_send(struct tipc_bearer *b, struct sk_buff *buf,
 				   struct tipc_media_addr *dest)
 {
-	return !b_ptr->media->send_msg(buf, b_ptr, dest);
+	b->media->send_msg(buf, b, dest);
 }
 
 #endif	/* _TIPC_BEARER_H */
diff --git a/net/tipc/core.c b/net/tipc/core.c
index bfe8af8..fc05cec 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -42,11 +42,6 @@
 
 #include <linux/module.h>
 
-#ifndef CONFIG_TIPC_PORTS
-#define CONFIG_TIPC_PORTS 8191
-#endif
-
-
 /* global variables used by multiple sub-systems within TIPC */
 int tipc_random __read_mostly;
 
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index 50eaa40..1074b95 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -243,7 +243,7 @@ void tipc_disc_recv_msg(struct sk_buff *buf, struct tipc_bearer *b_ptr)
 	if ((type == DSC_REQ_MSG) && !link_fully_up && !b_ptr->blocked) {
 		rbuf = tipc_disc_init_msg(DSC_RESP_MSG, orig, b_ptr);
 		if (rbuf) {
-			b_ptr->media->send_msg(rbuf, b_ptr, &media_addr);
+			tipc_bearer_send(b_ptr, rbuf, &media_addr);
 			kfree_skb(rbuf);
 		}
 	}
diff --git a/net/tipc/link.c b/net/tipc/link.c
index a79c755..daa6080 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1,7 +1,7 @@
 /*
  * net/tipc/link.c: TIPC link code
  *
- * Copyright (c) 1996-2007, Ericsson AB
+ * Copyright (c) 1996-2007, 2012, Ericsson AB
  * Copyright (c) 2004-2007, 2010-2011, Wind River Systems
  * All rights reserved.
  *
@@ -97,12 +97,13 @@ static int  link_send_sections_long(struct tipc_port *sender,
 				    struct iovec const *msg_sect,
 				    u32 num_sect, unsigned int total_len,
 				    u32 destnode);
-static void link_check_defragm_bufs(struct tipc_link *l_ptr);
 static void link_state_event(struct tipc_link *l_ptr, u32 event);
 static void link_reset_statistics(struct tipc_link *l_ptr);
 static void link_print(struct tipc_link *l_ptr, const char *str);
 static void link_start(struct tipc_link *l_ptr);
 static int link_send_long_buf(struct tipc_link *l_ptr, struct sk_buff *buf);
+static void tipc_link_send_sync(struct tipc_link *l);
+static void tipc_link_recv_sync(struct tipc_node *n, struct sk_buff *buf);
 
 /*
  *  Simple link routines
@@ -269,7 +270,6 @@ static void link_timeout(struct tipc_link *l_ptr)
 	}
 
 	/* do all other link processing performed on a periodic basis */
-	link_check_defragm_bufs(l_ptr);
 
 	link_state_event(l_ptr, TIMEOUT_EVT);
 
@@ -712,6 +712,8 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
 			link_activate(l_ptr);
 			tipc_link_send_proto_msg(l_ptr, STATE_MSG, 1, 0, 0, 0, 0);
 			l_ptr->fsm_msg_cnt++;
+			if (l_ptr->owner->working_links == 1)
+				tipc_link_send_sync(l_ptr);
 			link_set_timer(l_ptr, cont_intv);
 			break;
 		case RESET_MSG:
@@ -745,6 +747,8 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
 			link_activate(l_ptr);
 			tipc_link_send_proto_msg(l_ptr, STATE_MSG, 1, 0, 0, 0, 0);
 			l_ptr->fsm_msg_cnt++;
+			if (l_ptr->owner->working_links == 1)
+				tipc_link_send_sync(l_ptr);
 			link_set_timer(l_ptr, cont_intv);
 			break;
 		case RESET_MSG:
@@ -872,17 +876,12 @@ int tipc_link_send_buf(struct tipc_link *l_ptr, struct sk_buff *buf)
 		return link_send_long_buf(l_ptr, buf);
 
 	/* Packet can be queued or sent. */
-	if (likely(!tipc_bearer_congested(l_ptr->b_ptr, l_ptr) &&
+	if (likely(!tipc_bearer_blocked(l_ptr->b_ptr) &&
 		   !link_congested(l_ptr))) {
 		link_add_to_outqueue(l_ptr, buf, msg);
 
-		if (likely(tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr))) {
-			l_ptr->unacked_window = 0;
-		} else {
-			tipc_bearer_schedule(l_ptr->b_ptr, l_ptr);
-			l_ptr->stats.bearer_congs++;
-			l_ptr->next_out = buf;
-		}
+		tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr);
+		l_ptr->unacked_window = 0;
 		return dsz;
 	}
 	/* Congestion: can message be bundled ? */
@@ -891,10 +890,8 @@ int tipc_link_send_buf(struct tipc_link *l_ptr, struct sk_buff *buf)
 
 		/* Try adding message to an existing bundle */
 		if (l_ptr->next_out &&
-		    link_bundle_buf(l_ptr, l_ptr->last_out, buf)) {
-			tipc_bearer_resolve_congestion(l_ptr->b_ptr, l_ptr);
+		    link_bundle_buf(l_ptr, l_ptr->last_out, buf))
 			return dsz;
-		}
 
 		/* Try creating a new bundle */
 		if (size <= max_packet * 2 / 3) {
@@ -917,7 +914,6 @@ int tipc_link_send_buf(struct tipc_link *l_ptr, struct sk_buff *buf)
 	if (!l_ptr->next_out)
 		l_ptr->next_out = buf;
 	link_add_to_outqueue(l_ptr, buf, msg);
-	tipc_bearer_resolve_congestion(l_ptr->b_ptr, l_ptr);
 	return dsz;
 }
 
@@ -949,7 +945,48 @@ int tipc_link_send(struct sk_buff *buf, u32 dest, u32 selector)
 	return res;
 }
 
-/**
+/*
+ * tipc_link_send_sync - synchronize broadcast link endpoints.
+ *
+ * Give a newly added peer node the sequence number where it should
+ * start receiving and acking broadcast packets.
+ *
+ * Called with node locked
+ */
+static void tipc_link_send_sync(struct tipc_link *l)
+{
+	struct sk_buff *buf;
+	struct tipc_msg *msg;
+
+	buf = tipc_buf_acquire(INT_H_SIZE);
+	if (!buf)
+		return;
+
+	msg = buf_msg(buf);
+	tipc_msg_init(msg, BCAST_PROTOCOL, STATE_MSG, INT_H_SIZE, l->addr);
+	msg_set_last_bcast(msg, l->owner->bclink.acked);
+	link_add_chain_to_outqueue(l, buf, 0);
+	tipc_link_push_queue(l);
+}
+
+/*
+ * tipc_link_recv_sync - synchronize broadcast link endpoints.
+ * Receive the sequence number where we should start receiving and
+ * acking broadcast packets from a newly added peer node, and open
+ * up for reception of such packets.
+ *
+ * Called with node locked
+ */
+static void tipc_link_recv_sync(struct tipc_node *n, struct sk_buff *buf)
+{
+	struct tipc_msg *msg = buf_msg(buf);
+
+	n->bclink.last_sent = n->bclink.last_in = msg_last_bcast(msg);
+	n->bclink.recv_permitted = true;
+	kfree_skb(buf);
+}
+
+/*
  * tipc_link_send_names - send name table entries to new neighbor
  *
  * Send routine for bulk delivery of name table messages when contact
@@ -1006,16 +1043,11 @@ static int link_send_buf_fast(struct tipc_link *l_ptr, struct sk_buff *buf,
 
 	if (likely(!link_congested(l_ptr))) {
 		if (likely(msg_size(msg) <= l_ptr->max_pkt)) {
-			if (likely(list_empty(&l_ptr->b_ptr->cong_links))) {
+			if (likely(!tipc_bearer_blocked(l_ptr->b_ptr))) {
 				link_add_to_outqueue(l_ptr, buf, msg);
-				if (likely(tipc_bearer_send(l_ptr->b_ptr, buf,
-							    &l_ptr->media_addr))) {
-					l_ptr->unacked_window = 0;
-					return res;
-				}
-				tipc_bearer_schedule(l_ptr->b_ptr, l_ptr);
-				l_ptr->stats.bearer_congs++;
-				l_ptr->next_out = buf;
+				tipc_bearer_send(l_ptr->b_ptr, buf,
+						 &l_ptr->media_addr);
+				l_ptr->unacked_window = 0;
 				return res;
 			}
 		} else
@@ -1106,7 +1138,7 @@ exit:
 
 			/* Exit if link (or bearer) is congested */
 			if (link_congested(l_ptr) ||
-			    !list_empty(&l_ptr->b_ptr->cong_links)) {
+			    tipc_bearer_blocked(l_ptr->b_ptr)) {
 				res = link_schedule_port(l_ptr,
 							 sender->ref, res);
 				goto exit;
@@ -1329,15 +1361,11 @@ u32 tipc_link_push_packet(struct tipc_link *l_ptr)
 	if (r_q_size && buf) {
 		msg_set_ack(buf_msg(buf), mod(l_ptr->next_in_no - 1));
 		msg_set_bcast_ack(buf_msg(buf), l_ptr->owner->bclink.last_in);
-		if (tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr)) {
-			l_ptr->retransm_queue_head = mod(++r_q_head);
-			l_ptr->retransm_queue_size = --r_q_size;
-			l_ptr->stats.retransmitted++;
-			return 0;
-		} else {
-			l_ptr->stats.bearer_congs++;
-			return PUSH_FAILED;
-		}
+		tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr);
+		l_ptr->retransm_queue_head = mod(++r_q_head);
+		l_ptr->retransm_queue_size = --r_q_size;
+		l_ptr->stats.retransmitted++;
+		return 0;
 	}
 
 	/* Send deferred protocol message, if any: */
@@ -1345,15 +1373,11 @@ u32 tipc_link_push_packet(struct tipc_link *l_ptr)
 	if (buf) {
 		msg_set_ack(buf_msg(buf), mod(l_ptr->next_in_no - 1));
 		msg_set_bcast_ack(buf_msg(buf), l_ptr->owner->bclink.last_in);
-		if (tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr)) {
-			l_ptr->unacked_window = 0;
-			kfree_skb(buf);
-			l_ptr->proto_msg_queue = NULL;
-			return 0;
-		} else {
-			l_ptr->stats.bearer_congs++;
-			return PUSH_FAILED;
-		}
+		tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr);
+		l_ptr->unacked_window = 0;
+		kfree_skb(buf);
+		l_ptr->proto_msg_queue = NULL;
+		return 0;
 	}
 
 	/* Send one deferred data message, if send window not full: */
@@ -1366,18 +1390,14 @@ u32 tipc_link_push_packet(struct tipc_link *l_ptr)
 		if (mod(next - first) < l_ptr->queue_limit[0]) {
 			msg_set_ack(msg, mod(l_ptr->next_in_no - 1));
 			msg_set_bcast_ack(msg, l_ptr->owner->bclink.last_in);
-			if (tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr)) {
-				if (msg_user(msg) == MSG_BUNDLER)
-					msg_set_type(msg, CLOSED_MSG);
-				l_ptr->next_out = buf->next;
-				return 0;
-			} else {
-				l_ptr->stats.bearer_congs++;
-				return PUSH_FAILED;
-			}
+			tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr);
+			if (msg_user(msg) == MSG_BUNDLER)
+				msg_set_type(msg, CLOSED_MSG);
+			l_ptr->next_out = buf->next;
+			return 0;
 		}
 	}
-	return PUSH_FINISHED;
+	return 1;
 }
 
 /*
@@ -1388,15 +1408,12 @@ void tipc_link_push_queue(struct tipc_link *l_ptr)
 {
 	u32 res;
 
-	if (tipc_bearer_congested(l_ptr->b_ptr, l_ptr))
+	if (tipc_bearer_blocked(l_ptr->b_ptr))
 		return;
 
 	do {
 		res = tipc_link_push_packet(l_ptr);
 	} while (!res);
-
-	if (res == PUSH_FAILED)
-		tipc_bearer_schedule(l_ptr->b_ptr, l_ptr);
 }
 
 static void link_reset_all(unsigned long addr)
@@ -1454,9 +1471,8 @@ static void link_retransmit_failure(struct tipc_link *l_ptr,
 
 		tipc_addr_string_fill(addr_string, n_ptr->addr);
 		pr_info("Broadcast link info for %s\n", addr_string);
-		pr_info("Supportable: %d,  Supported: %d,  Acked: %u\n",
-			n_ptr->bclink.supportable,
-			n_ptr->bclink.supported,
+		pr_info("Reception permitted: %d,  Acked: %u\n",
+			n_ptr->bclink.recv_permitted,
 			n_ptr->bclink.acked);
 		pr_info("Last in: %u,  Oos state: %u,  Last sent: %u\n",
 			n_ptr->bclink.last_in,
@@ -1481,7 +1497,7 @@ void tipc_link_retransmit(struct tipc_link *l_ptr, struct sk_buff *buf,
 
 	msg = buf_msg(buf);
 
-	if (tipc_bearer_congested(l_ptr->b_ptr, l_ptr)) {
+	if (tipc_bearer_blocked(l_ptr->b_ptr)) {
 		if (l_ptr->retransm_queue_size == 0) {
 			l_ptr->retransm_queue_head = msg_seqno(msg);
 			l_ptr->retransm_queue_size = retransmits;
@@ -1491,7 +1507,7 @@ void tipc_link_retransmit(struct tipc_link *l_ptr, struct sk_buff *buf,
 		}
 		return;
 	} else {
-		/* Detect repeated retransmit failures on uncongested bearer */
+		/* Detect repeated retransmit failures on unblocked bearer */
 		if (l_ptr->last_retransmitted == msg_seqno(msg)) {
 			if (++l_ptr->stale_count > 100) {
 				link_retransmit_failure(l_ptr, buf);
@@ -1507,17 +1523,10 @@ void tipc_link_retransmit(struct tipc_link *l_ptr, struct sk_buff *buf,
 		msg = buf_msg(buf);
 		msg_set_ack(msg, mod(l_ptr->next_in_no - 1));
 		msg_set_bcast_ack(msg, l_ptr->owner->bclink.last_in);
-		if (tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr)) {
-			buf = buf->next;
-			retransmits--;
-			l_ptr->stats.retransmitted++;
-		} else {
-			tipc_bearer_schedule(l_ptr->b_ptr, l_ptr);
-			l_ptr->stats.bearer_congs++;
-			l_ptr->retransm_queue_head = buf_seqno(buf);
-			l_ptr->retransm_queue_size = retransmits;
-			return;
-		}
+		tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr);
+		buf = buf->next;
+		retransmits--;
+		l_ptr->stats.retransmitted++;
 	}
 
 	l_ptr->retransm_queue_head = l_ptr->retransm_queue_size = 0;
@@ -1676,7 +1685,7 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *b_ptr)
 		ackd = msg_ack(msg);
 
 		/* Release acked messages */
-		if (n_ptr->bclink.supported)
+		if (n_ptr->bclink.recv_permitted)
 			tipc_bclink_acknowledge(n_ptr, msg_bcast_ack(msg));
 
 		crs = l_ptr->first_out;
@@ -1727,9 +1736,14 @@ deliver:
 					tipc_link_recv_bundle(buf);
 					continue;
 				case NAME_DISTRIBUTOR:
+					n_ptr->bclink.recv_permitted = true;
 					tipc_node_unlock(n_ptr);
 					tipc_named_recv(buf);
 					continue;
+				case BCAST_PROTOCOL:
+					tipc_link_recv_sync(n_ptr, buf);
+					tipc_node_unlock(n_ptr);
+					continue;
 				case CONN_MANAGER:
 					tipc_node_unlock(n_ptr);
 					tipc_port_recv_proto_msg(buf);
@@ -1772,16 +1786,19 @@ deliver:
 			continue;
 		}
 
+		/* Link is not in state WORKING_WORKING */
 		if (msg_user(msg) == LINK_PROTOCOL) {
 			link_recv_proto_msg(l_ptr, buf);
 			head = link_insert_deferred_queue(l_ptr, head);
 			tipc_node_unlock(n_ptr);
 			continue;
 		}
+
+		/* Traffic message. Conditionally activate link */
 		link_state_event(l_ptr, TRAFFIC_MSG_EVT);
 
 		if (link_working_working(l_ptr)) {
-			/* Re-insert in front of queue */
+			/* Re-insert buffer in front of queue */
 			buf->next = head;
 			head = buf;
 			tipc_node_unlock(n_ptr);
@@ -1972,21 +1989,13 @@ void tipc_link_send_proto_msg(struct tipc_link *l_ptr, u32 msg_typ,
 
 	skb_copy_to_linear_data(buf, msg, sizeof(l_ptr->proto_msg));
 
-	/* Defer message if bearer is already congested */
-	if (tipc_bearer_congested(l_ptr->b_ptr, l_ptr)) {
-		l_ptr->proto_msg_queue = buf;
-		return;
-	}
-
-	/* Defer message if attempting to send results in bearer congestion */
-	if (!tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr)) {
-		tipc_bearer_schedule(l_ptr->b_ptr, l_ptr);
+	/* Defer message if bearer is already blocked */
+	if (tipc_bearer_blocked(l_ptr->b_ptr)) {
 		l_ptr->proto_msg_queue = buf;
-		l_ptr->stats.bearer_congs++;
 		return;
 	}
 
-	/* Discard message if it was sent successfully */
+	tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr);
 	l_ptr->unacked_window = 0;
 	kfree_skb(buf);
 }
@@ -2057,7 +2066,6 @@ static void link_recv_proto_msg(struct tipc_link *l_ptr, struct sk_buff *buf)
 		} else {
 			l_ptr->max_pkt = l_ptr->max_pkt_target;
 		}
-		l_ptr->owner->bclink.supportable = (max_pkt_info != 0);
 
 		/* Synchronize broadcast link info, if not done previously */
 		if (!tipc_node_is_up(l_ptr->owner)) {
@@ -2112,7 +2120,7 @@ static void link_recv_proto_msg(struct tipc_link *l_ptr, struct sk_buff *buf)
 		}
 
 		/* Protocol message before retransmits, reduce loss risk */
-		if (l_ptr->owner->bclink.supported)
+		if (l_ptr->owner->bclink.recv_permitted)
 			tipc_bclink_update_link_state(l_ptr->owner,
 						      msg_last_bcast(msg));
 
@@ -2487,16 +2495,6 @@ static void set_expected_frags(struct sk_buff *buf, u32 exp)
 	msg_set_bcast_ack(buf_msg(buf), exp);
 }
 
-static u32 get_timer_cnt(struct sk_buff *buf)
-{
-	return msg_reroute_cnt(buf_msg(buf));
-}
-
-static void incr_timer_cnt(struct sk_buff *buf)
-{
-	msg_incr_reroute_cnt(buf_msg(buf));
-}
-
 /*
  * tipc_link_recv_fragment(): Called with node lock on. Returns
  * the reassembled buffer if message is complete.
@@ -2575,38 +2573,6 @@ int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb,
 	return 0;
 }
 
-/**
- * link_check_defragm_bufs - flush stale incoming message fragments
- * @l_ptr: pointer to link
- */
-static void link_check_defragm_bufs(struct tipc_link *l_ptr)
-{
-	struct sk_buff *prev = NULL;
-	struct sk_buff *next = NULL;
-	struct sk_buff *buf = l_ptr->defragm_buf;
-
-	if (!buf)
-		return;
-	if (!link_working_working(l_ptr))
-		return;
-	while (buf) {
-		u32 cnt = get_timer_cnt(buf);
-
-		next = buf->next;
-		if (cnt < 4) {
-			incr_timer_cnt(buf);
-			prev = buf;
-		} else {
-			if (prev)
-				prev->next = buf->next;
-			else
-				l_ptr->defragm_buf = buf->next;
-			kfree_skb(buf);
-		}
-		buf = next;
-	}
-}
-
 static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tolerance)
 {
 	if ((tolerance < TIPC_MIN_LINK_TOL) || (tolerance > TIPC_MAX_LINK_TOL))
@@ -2937,8 +2903,8 @@ static int tipc_link_stats(const char *name, char *buf, const u32 buf_size)
 			     s->sent_nacks, s->sent_acks, s->retransmitted);
 
 	ret += tipc_snprintf(buf + ret, buf_size - ret,
-			     "  Congestion bearer:%u link:%u  Send queue"
-			     " max:%u avg:%u\n", s->bearer_congs, s->link_congs,
+			     "  Congestion link:%u  Send queue"
+			     " max:%u avg:%u\n", s->link_congs,
 			     s->max_queue_sz, s->queue_sz_counts ?
 			     (s->accu_queue_sz / s->queue_sz_counts) : 0);
 
diff --git a/net/tipc/link.h b/net/tipc/link.h
index 6e92112..c048ed1 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -40,9 +40,6 @@
 #include "msg.h"
 #include "node.h"
 
-#define PUSH_FAILED   1
-#define PUSH_FINISHED 2
-
 /*
  * Out-of-range value for link sequence numbers
  */
@@ -82,7 +79,6 @@ struct tipc_stats {
 	u32 recv_fragmented;
 	u32 recv_fragments;
 	u32 link_congs;		/* # port sends blocked by congestion */
-	u32 bearer_congs;
 	u32 deferred_recv;
 	u32 duplicates;
 	u32 max_queue_sz;	/* send queue size high water mark */
diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index 55d3928..e0d0805 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -262,7 +262,7 @@ void tipc_named_node_up(unsigned long nodearg)
 	named_distribute(&message_list, node, &publ_zone, max_item_buf);
 	read_unlock_bh(&tipc_nametbl_lock);
 
-	tipc_link_send_names(&message_list, (u32)node);
+	tipc_link_send_names(&message_list, node);
 }
 
 /**
diff --git a/net/tipc/node.c b/net/tipc/node.c
index d21db20..48f39dd 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -1,7 +1,7 @@
 /*
  * net/tipc/node.c: TIPC node management routines
  *
- * Copyright (c) 2000-2006, Ericsson AB
+ * Copyright (c) 2000-2006, 2012 Ericsson AB
  * Copyright (c) 2005-2006, 2010-2011, Wind River Systems
  * All rights reserved.
  *
@@ -263,12 +263,9 @@ void tipc_node_detach_link(struct tipc_node *n_ptr, struct tipc_link *l_ptr)
 static void node_established_contact(struct tipc_node *n_ptr)
 {
 	tipc_k_signal((Handler)tipc_named_node_up, n_ptr->addr);
-
-	if (n_ptr->bclink.supportable) {
-		n_ptr->bclink.acked = tipc_bclink_get_last_sent();
-		tipc_bclink_add_node(n_ptr->addr);
-		n_ptr->bclink.supported = 1;
-	}
+	n_ptr->bclink.oos_state = 0;
+	n_ptr->bclink.acked = tipc_bclink_get_last_sent();
+	tipc_bclink_add_node(n_ptr->addr);
 }
 
 static void node_name_purge_complete(unsigned long node_addr)
@@ -294,7 +291,7 @@ static void node_lost_contact(struct tipc_node *n_ptr)
 		tipc_addr_string_fill(addr_string, n_ptr->addr));
 
 	/* Flush broadcast link info associated with lost node */
-	if (n_ptr->bclink.supported) {
+	if (n_ptr->bclink.recv_permitted) {
 		while (n_ptr->bclink.deferred_head) {
 			struct sk_buff *buf = n_ptr->bclink.deferred_head;
 			n_ptr->bclink.deferred_head = buf->next;
@@ -310,7 +307,7 @@ static void node_lost_contact(struct tipc_node *n_ptr)
 		tipc_bclink_remove_node(n_ptr->addr);
 		tipc_bclink_acknowledge(n_ptr, INVALID_LINK_SEQ);
 
-		n_ptr->bclink.supported = 0;
+		n_ptr->bclink.recv_permitted = false;
 	}
 
 	/* Abort link changeover */
diff --git a/net/tipc/node.h b/net/tipc/node.h
index cfcaf4d..3c189b3 100644
--- a/net/tipc/node.h
+++ b/net/tipc/node.h
@@ -67,8 +67,6 @@
  * @permit_changeover: non-zero if node has redundant links to this system
  * @signature: node instance identifier
  * @bclink: broadcast-related info
- *    @supportable: non-zero if node supports TIPC b'cast link capability
- *    @supported: non-zero if node supports TIPC b'cast capability
  *    @acked: sequence # of last outbound b'cast message acknowledged by node
  *    @last_in: sequence # of last in-sequence b'cast message received from node
  *    @last_sent: sequence # of last b'cast message sent by node
@@ -77,6 +75,7 @@
  *    @deferred_head: oldest OOS b'cast message received from node
  *    @deferred_tail: newest OOS b'cast message received from node
  *    @defragm: list of partially reassembled b'cast message fragments from node
+ *    @recv_permitted: true if node is allowed to receive b'cast messages
  */
 struct tipc_node {
 	u32 addr;
@@ -92,8 +91,6 @@ struct tipc_node {
 	int permit_changeover;
 	u32 signature;
 	struct {
-		u8 supportable;
-		u8 supported;
 		u32 acked;
 		u32 last_in;
 		u32 last_sent;
@@ -102,6 +99,7 @@ struct tipc_node {
 		struct sk_buff *deferred_head;
 		struct sk_buff *deferred_tail;
 		struct sk_buff *defragm;
+		bool recv_permitted;
 	} bclink;
 };
 
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 07c42fb..18098ca 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -726,7 +726,7 @@ static void port_dispatcher_sigh(void *dummy)
 				if (unlikely(!cb))
 					goto reject;
 				if (unlikely(!connected)) {
-					if (tipc_connect2port(dref, &orig))
+					if (tipc_connect(dref, &orig))
 						goto reject;
 				} else if (peer_invalid)
 					goto reject;
@@ -1036,15 +1036,30 @@ int tipc_withdraw(u32 ref, unsigned int scope, struct tipc_name_seq const *seq)
 	return res;
 }
 
-int tipc_connect2port(u32 ref, struct tipc_portid const *peer)
+int tipc_connect(u32 ref, struct tipc_portid const *peer)
 {
 	struct tipc_port *p_ptr;
-	struct tipc_msg *msg;
-	int res = -EINVAL;
+	int res;
 
 	p_ptr = tipc_port_lock(ref);
 	if (!p_ptr)
 		return -EINVAL;
+	res = __tipc_connect(ref, p_ptr, peer);
+	tipc_port_unlock(p_ptr);
+	return res;
+}
+
+/*
+ * __tipc_connect - connect to a remote peer
+ *
+ * Port must be locked.
+ */
+int __tipc_connect(u32 ref, struct tipc_port *p_ptr,
+			struct tipc_portid const *peer)
+{
+	struct tipc_msg *msg;
+	int res = -EINVAL;
+
 	if (p_ptr->published || p_ptr->connected)
 		goto exit;
 	if (!peer->ref)
@@ -1067,17 +1082,16 @@ int tipc_connect2port(u32 ref, struct tipc_portid const *peer)
 			  (net_ev_handler)port_handle_node_down);
 	res = 0;
 exit:
-	tipc_port_unlock(p_ptr);
 	p_ptr->max_pkt = tipc_link_get_max_pkt(peer->node, ref);
 	return res;
 }
 
-/**
- * tipc_disconnect_port - disconnect port from peer
+/*
+ * __tipc_disconnect - disconnect port from peer
  *
  * Port must be locked.
  */
-int tipc_disconnect_port(struct tipc_port *tp_ptr)
+int __tipc_disconnect(struct tipc_port *tp_ptr)
 {
 	int res;
 
@@ -1104,7 +1118,7 @@ int tipc_disconnect(u32 ref)
 	p_ptr = tipc_port_lock(ref);
 	if (!p_ptr)
 		return -EINVAL;
-	res = tipc_disconnect_port(p_ptr);
+	res = __tipc_disconnect(p_ptr);
 	tipc_port_unlock(p_ptr);
 	return res;
 }
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 4660e30..fb66e2e 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -190,7 +190,7 @@ int tipc_publish(u32 portref, unsigned int scope,
 int tipc_withdraw(u32 portref, unsigned int scope,
 		struct tipc_name_seq const *name_seq);
 
-int tipc_connect2port(u32 portref, struct tipc_portid const *port);
+int tipc_connect(u32 portref, struct tipc_portid const *port);
 
 int tipc_disconnect(u32 portref);
 
@@ -200,7 +200,9 @@ int tipc_shutdown(u32 ref);
 /*
  * The following routines require that the port be locked on entry
  */
-int tipc_disconnect_port(struct tipc_port *tp_ptr);
+int __tipc_disconnect(struct tipc_port *tp_ptr);
+int __tipc_connect(u32 ref, struct tipc_port *p_ptr,
+		   struct tipc_portid const *peer);
 int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg);
 
 /*
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index fd5f042..9b4e483 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -1,8 +1,8 @@
 /*
  * net/tipc/socket.c: TIPC socket API
  *
- * Copyright (c) 2001-2007, Ericsson AB
- * Copyright (c) 2004-2008, 2010-2011, Wind River Systems
+ * Copyright (c) 2001-2007, 2012 Ericsson AB
+ * Copyright (c) 2004-2008, 2010-2012, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -43,7 +43,7 @@
 #define SS_LISTENING	-1	/* socket is listening */
 #define SS_READY	-2	/* socket is connectionless */
 
-#define OVERLOAD_LIMIT_BASE	5000
+#define OVERLOAD_LIMIT_BASE	10000
 #define CONN_TIMEOUT_DEFAULT	8000	/* default connect timeout = 8s */
 
 struct tipc_sock {
@@ -62,6 +62,8 @@ struct tipc_sock {
 static int backlog_rcv(struct sock *sk, struct sk_buff *skb);
 static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf);
 static void wakeupdispatch(struct tipc_port *tport);
+static void tipc_data_ready(struct sock *sk, int len);
+static void tipc_write_space(struct sock *sk);
 
 static const struct proto_ops packet_ops;
 static const struct proto_ops stream_ops;
@@ -71,8 +73,6 @@ static struct proto tipc_proto;
 
 static int sockets_enabled;
 
-static atomic_t tipc_queue_size = ATOMIC_INIT(0);
-
 /*
  * Revised TIPC socket locking policy:
  *
@@ -126,7 +126,6 @@ static atomic_t tipc_queue_size = ATOMIC_INIT(0);
 static void advance_rx_queue(struct sock *sk)
 {
 	kfree_skb(__skb_dequeue(&sk->sk_receive_queue));
-	atomic_dec(&tipc_queue_size);
 }
 
 /**
@@ -138,10 +137,8 @@ static void discard_rx_queue(struct sock *sk)
 {
 	struct sk_buff *buf;
 
-	while ((buf = __skb_dequeue(&sk->sk_receive_queue))) {
-		atomic_dec(&tipc_queue_size);
+	while ((buf = __skb_dequeue(&sk->sk_receive_queue)))
 		kfree_skb(buf);
-	}
 }
 
 /**
@@ -153,10 +150,8 @@ static void reject_rx_queue(struct sock *sk)
 {
 	struct sk_buff *buf;
 
-	while ((buf = __skb_dequeue(&sk->sk_receive_queue))) {
+	while ((buf = __skb_dequeue(&sk->sk_receive_queue)))
 		tipc_reject_msg(buf, TIPC_ERR_NO_PORT);
-		atomic_dec(&tipc_queue_size);
-	}
 }
 
 /**
@@ -221,6 +216,8 @@ static int tipc_create(struct net *net, struct socket *sock, int protocol,
 	sock_init_data(sock, sk);
 	sk->sk_backlog_rcv = backlog_rcv;
 	sk->sk_rcvbuf = TIPC_FLOW_CONTROL_WIN * 2 * TIPC_MAX_USER_MSG_SIZE * 2;
+	sk->sk_data_ready = tipc_data_ready;
+	sk->sk_write_space = tipc_write_space;
 	tipc_sk(sk)->p = tp_ptr;
 	tipc_sk(sk)->conn_timeout = CONN_TIMEOUT_DEFAULT;
 
@@ -276,7 +273,6 @@ static int release(struct socket *sock)
 		buf = __skb_dequeue(&sk->sk_receive_queue);
 		if (buf == NULL)
 			break;
-		atomic_dec(&tipc_queue_size);
 		if (TIPC_SKB_CB(buf)->handle != 0)
 			kfree_skb(buf);
 		else {
@@ -408,7 +404,7 @@ static int get_name(struct socket *sock, struct sockaddr *uaddr,
  * socket state		flags set
  * ------------		---------
  * unconnected		no read flags
- *			no write flags
+ *			POLLOUT if port is not congested
  *
  * connecting		POLLIN/POLLRDNORM if ACK/NACK in rx queue
  *			no write flags
@@ -435,9 +431,13 @@ static unsigned int poll(struct file *file, struct socket *sock,
 	struct sock *sk = sock->sk;
 	u32 mask = 0;
 
-	poll_wait(file, sk_sleep(sk), wait);
+	sock_poll_wait(file, sk_sleep(sk), wait);
 
 	switch ((int)sock->state) {
+	case SS_UNCONNECTED:
+		if (!tipc_sk_port(sk)->congested)
+			mask |= POLLOUT;
+		break;
 	case SS_READY:
 	case SS_CONNECTED:
 		if (!tipc_sk_port(sk)->congested)
@@ -775,16 +775,19 @@ exit:
 static int auto_connect(struct socket *sock, struct tipc_msg *msg)
 {
 	struct tipc_sock *tsock = tipc_sk(sock->sk);
-
-	if (msg_errcode(msg)) {
-		sock->state = SS_DISCONNECTING;
-		return -ECONNREFUSED;
-	}
+	struct tipc_port *p_ptr;
 
 	tsock->peer_name.ref = msg_origport(msg);
 	tsock->peer_name.node = msg_orignode(msg);
-	tipc_connect2port(tsock->p->ref, &tsock->peer_name);
-	tipc_set_portimportance(tsock->p->ref, msg_importance(msg));
+	p_ptr = tipc_port_deref(tsock->p->ref);
+	if (!p_ptr)
+		return -EINVAL;
+
+	__tipc_connect(tsock->p->ref, p_ptr, &tsock->peer_name);
+
+	if (msg_importance(msg) > TIPC_CRITICAL_IMPORTANCE)
+		return -EINVAL;
+	msg_set_importance(&p_ptr->phdr, (u32)msg_importance(msg));
 	sock->state = SS_CONNECTED;
 	return 0;
 }
@@ -943,13 +946,6 @@ restart:
 	sz = msg_data_sz(msg);
 	err = msg_errcode(msg);
 
-	/* Complete connection setup for an implied connect */
-	if (unlikely(sock->state == SS_CONNECTING)) {
-		res = auto_connect(sock, msg);
-		if (res)
-			goto exit;
-	}
-
 	/* Discard an empty non-errored message & try again */
 	if ((!sz) && (!err)) {
 		advance_rx_queue(sk);
@@ -1126,6 +1122,39 @@ exit:
 }
 
 /**
+ * tipc_write_space - wake up thread if port congestion is released
+ * @sk: socket
+ */
+static void tipc_write_space(struct sock *sk)
+{
+	struct socket_wq *wq;
+
+	rcu_read_lock();
+	wq = rcu_dereference(sk->sk_wq);
+	if (wq_has_sleeper(wq))
+		wake_up_interruptible_sync_poll(&wq->wait, POLLOUT |
+						POLLWRNORM | POLLWRBAND);
+	rcu_read_unlock();
+}
+
+/**
+ * tipc_data_ready - wake up threads to indicate messages have been received
+ * @sk: socket
+ * @len: the length of messages
+ */
+static void tipc_data_ready(struct sock *sk, int len)
+{
+	struct socket_wq *wq;
+
+	rcu_read_lock();
+	wq = rcu_dereference(sk->sk_wq);
+	if (wq_has_sleeper(wq))
+		wake_up_interruptible_sync_poll(&wq->wait, POLLIN |
+						POLLRDNORM | POLLRDBAND);
+	rcu_read_unlock();
+}
+
+/**
  * rx_queue_full - determine if receive queue can accept another message
  * @msg: message to be added to queue
  * @queue_size: current size of queue
@@ -1154,6 +1183,83 @@ static int rx_queue_full(struct tipc_msg *msg, u32 queue_size, u32 base)
 }
 
 /**
+ * filter_connect - Handle all incoming messages for a connection-based socket
+ * @tsock: TIPC socket
+ * @msg: message
+ *
+ * Returns TIPC error status code and socket error status code
+ * once it encounters some errors
+ */
+static u32 filter_connect(struct tipc_sock *tsock, struct sk_buff **buf)
+{
+	struct socket *sock = tsock->sk.sk_socket;
+	struct tipc_msg *msg = buf_msg(*buf);
+	struct sock *sk = &tsock->sk;
+	u32 retval = TIPC_ERR_NO_PORT;
+	int res;
+
+	if (msg_mcast(msg))
+		return retval;
+
+	switch ((int)sock->state) {
+	case SS_CONNECTED:
+		/* Accept only connection-based messages sent by peer */
+		if (msg_connected(msg) && tipc_port_peer_msg(tsock->p, msg)) {
+			if (unlikely(msg_errcode(msg))) {
+				sock->state = SS_DISCONNECTING;
+				__tipc_disconnect(tsock->p);
+			}
+			retval = TIPC_OK;
+		}
+		break;
+	case SS_CONNECTING:
+		/* Accept only ACK or NACK message */
+		if (unlikely(msg_errcode(msg))) {
+			sock->state = SS_DISCONNECTING;
+			sk->sk_err = -ECONNREFUSED;
+			retval = TIPC_OK;
+			break;
+		}
+
+		if (unlikely(!msg_connected(msg)))
+			break;
+
+		res = auto_connect(sock, msg);
+		if (res) {
+			sock->state = SS_DISCONNECTING;
+			sk->sk_err = res;
+			retval = TIPC_OK;
+			break;
+		}
+
+		/* If an incoming message is an 'ACK-', it should be
+		 * discarded here because it doesn't contain useful
+		 * data. In addition, we should try to wake up
+		 * connect() routine if sleeping.
+		 */
+		if (msg_data_sz(msg) == 0) {
+			kfree_skb(*buf);
+			*buf = NULL;
+			if (waitqueue_active(sk_sleep(sk)))
+				wake_up_interruptible(sk_sleep(sk));
+		}
+		retval = TIPC_OK;
+		break;
+	case SS_LISTENING:
+	case SS_UNCONNECTED:
+		/* Accept only SYN message */
+		if (!msg_connected(msg) && !(msg_errcode(msg)))
+			retval = TIPC_OK;
+		break;
+	case SS_DISCONNECTING:
+		break;
+	default:
+		pr_err("Unknown socket state %u\n", sock->state);
+	}
+	return retval;
+}
+
+/**
  * filter_rcv - validate incoming message
  * @sk: socket
  * @buf: message
@@ -1170,6 +1276,7 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf)
 	struct socket *sock = sk->sk_socket;
 	struct tipc_msg *msg = buf_msg(buf);
 	u32 recv_q_len;
+	u32 res = TIPC_OK;
 
 	/* Reject message if it is wrong sort of message for socket */
 	if (msg_type(msg) > TIPC_DIRECT_MSG)
@@ -1179,32 +1286,12 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf)
 		if (msg_connected(msg))
 			return TIPC_ERR_NO_PORT;
 	} else {
-		if (msg_mcast(msg))
-			return TIPC_ERR_NO_PORT;
-		if (sock->state == SS_CONNECTED) {
-			if (!msg_connected(msg) ||
-			    !tipc_port_peer_msg(tipc_sk_port(sk), msg))
-				return TIPC_ERR_NO_PORT;
-		} else if (sock->state == SS_CONNECTING) {
-			if (!msg_connected(msg) && (msg_errcode(msg) == 0))
-				return TIPC_ERR_NO_PORT;
-		} else if (sock->state == SS_LISTENING) {
-			if (msg_connected(msg) || msg_errcode(msg))
-				return TIPC_ERR_NO_PORT;
-		} else if (sock->state == SS_DISCONNECTING) {
-			return TIPC_ERR_NO_PORT;
-		} else /* (sock->state == SS_UNCONNECTED) */ {
-			if (msg_connected(msg) || msg_errcode(msg))
-				return TIPC_ERR_NO_PORT;
-		}
+		res = filter_connect(tipc_sk(sk), &buf);
+		if (res != TIPC_OK || buf == NULL)
+			return res;
 	}
 
 	/* Reject message if there isn't room to queue it */
-	recv_q_len = (u32)atomic_read(&tipc_queue_size);
-	if (unlikely(recv_q_len >= OVERLOAD_LIMIT_BASE)) {
-		if (rx_queue_full(msg, recv_q_len, OVERLOAD_LIMIT_BASE))
-			return TIPC_ERR_OVERLOAD;
-	}
 	recv_q_len = skb_queue_len(&sk->sk_receive_queue);
 	if (unlikely(recv_q_len >= (OVERLOAD_LIMIT_BASE / 2))) {
 		if (rx_queue_full(msg, recv_q_len, OVERLOAD_LIMIT_BASE / 2))
@@ -1213,17 +1300,9 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf)
 
 	/* Enqueue message (finally!) */
 	TIPC_SKB_CB(buf)->handle = 0;
-	atomic_inc(&tipc_queue_size);
 	__skb_queue_tail(&sk->sk_receive_queue, buf);
 
-	/* Initiate connection termination for an incoming 'FIN' */
-	if (unlikely(msg_errcode(msg) && (sock->state == SS_CONNECTED))) {
-		sock->state = SS_DISCONNECTING;
-		tipc_disconnect_port(tipc_sk_port(sk));
-	}
-
-	if (waitqueue_active(sk_sleep(sk)))
-		wake_up_interruptible(sk_sleep(sk));
+	sk->sk_data_ready(sk, 0);
 	return TIPC_OK;
 }
 
@@ -1290,8 +1369,7 @@ static void wakeupdispatch(struct tipc_port *tport)
 {
 	struct sock *sk = (struct sock *)tport->usr_handle;
 
-	if (waitqueue_active(sk_sleep(sk)))
-		wake_up_interruptible(sk_sleep(sk));
+	sk->sk_write_space(sk);
 }
 
 /**
@@ -1309,8 +1387,6 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen,
 	struct sock *sk = sock->sk;
 	struct sockaddr_tipc *dst = (struct sockaddr_tipc *)dest;
 	struct msghdr m = {NULL,};
-	struct sk_buff *buf;
-	struct tipc_msg *msg;
 	unsigned int timeout;
 	int res;
 
@@ -1322,26 +1398,6 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen,
 		goto exit;
 	}
 
-	/* For now, TIPC does not support the non-blocking form of connect() */
-	if (flags & O_NONBLOCK) {
-		res = -EOPNOTSUPP;
-		goto exit;
-	}
-
-	/* Issue Posix-compliant error code if socket is in the wrong state */
-	if (sock->state == SS_LISTENING) {
-		res = -EOPNOTSUPP;
-		goto exit;
-	}
-	if (sock->state == SS_CONNECTING) {
-		res = -EALREADY;
-		goto exit;
-	}
-	if (sock->state != SS_UNCONNECTED) {
-		res = -EISCONN;
-		goto exit;
-	}
-
 	/*
 	 * Reject connection attempt using multicast address
 	 *
@@ -1353,49 +1409,66 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen,
 		goto exit;
 	}
 
-	/* Reject any messages already in receive queue (very unlikely) */
-	reject_rx_queue(sk);
+	timeout = (flags & O_NONBLOCK) ? 0 : tipc_sk(sk)->conn_timeout;
 
-	/* Send a 'SYN-' to destination */
-	m.msg_name = dest;
-	m.msg_namelen = destlen;
-	res = send_msg(NULL, sock, &m, 0);
-	if (res < 0)
+	switch (sock->state) {
+	case SS_UNCONNECTED:
+		/* Send a 'SYN-' to destination */
+		m.msg_name = dest;
+		m.msg_namelen = destlen;
+
+		/* If connect is in non-blocking case, set MSG_DONTWAIT to
+		 * indicate send_msg() is never blocked.
+		 */
+		if (!timeout)
+			m.msg_flags = MSG_DONTWAIT;
+
+		res = send_msg(NULL, sock, &m, 0);
+		if ((res < 0) && (res != -EWOULDBLOCK))
+			goto exit;
+
+		/* Just entered SS_CONNECTING state; the only
+		 * difference is that return value in non-blocking
+		 * case is EINPROGRESS, rather than EALREADY.
+		 */
+		res = -EINPROGRESS;
+		break;
+	case SS_CONNECTING:
+		res = -EALREADY;
+		break;
+	case SS_CONNECTED:
+		res = -EISCONN;
+		break;
+	default:
+		res = -EINVAL;
 		goto exit;
+	}
 
-	/* Wait until an 'ACK' or 'RST' arrives, or a timeout occurs */
-	timeout = tipc_sk(sk)->conn_timeout;
-	release_sock(sk);
-	res = wait_event_interruptible_timeout(*sk_sleep(sk),
-			(!skb_queue_empty(&sk->sk_receive_queue) ||
-			(sock->state != SS_CONNECTING)),
-			timeout ? (long)msecs_to_jiffies(timeout)
-				: MAX_SCHEDULE_TIMEOUT);
-	lock_sock(sk);
+	if (sock->state == SS_CONNECTING) {
+		if (!timeout)
+			goto exit;
 
-	if (res > 0) {
-		buf = skb_peek(&sk->sk_receive_queue);
-		if (buf != NULL) {
-			msg = buf_msg(buf);
-			res = auto_connect(sock, msg);
-			if (!res) {
-				if (!msg_data_sz(msg))
-					advance_rx_queue(sk);
-			}
-		} else {
-			if (sock->state == SS_CONNECTED)
-				res = -EISCONN;
+		/* Wait until an 'ACK' or 'RST' arrives, or a timeout occurs */
+		release_sock(sk);
+		res = wait_event_interruptible_timeout(*sk_sleep(sk),
+				sock->state != SS_CONNECTING,
+				timeout ? (long)msecs_to_jiffies(timeout)
+					: MAX_SCHEDULE_TIMEOUT);
+		lock_sock(sk);
+		if (res <= 0) {
+			if (res == 0)
+				res = -ETIMEDOUT;
 			else
-				res = -ECONNREFUSED;
+				; /* leave "res" unchanged */
+			goto exit;
 		}
-	} else {
-		if (res == 0)
-			res = -ETIMEDOUT;
-		else
-			; /* leave "res" unchanged */
-		sock->state = SS_DISCONNECTING;
 	}
 
+	if (unlikely(sock->state == SS_DISCONNECTING))
+		res = sock_error(sk);
+	else
+		res = 0;
+
 exit:
 	release_sock(sk);
 	return res;
@@ -1436,8 +1509,13 @@ static int listen(struct socket *sock, int len)
  */
 static int accept(struct socket *sock, struct socket *new_sock, int flags)
 {
-	struct sock *sk = sock->sk;
+	struct sock *new_sk, *sk = sock->sk;
 	struct sk_buff *buf;
+	struct tipc_sock *new_tsock;
+	struct tipc_port *new_tport;
+	struct tipc_msg *msg;
+	u32 new_ref;
+
 	int res;
 
 	lock_sock(sk);
@@ -1463,48 +1541,51 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags)
 	buf = skb_peek(&sk->sk_receive_queue);
 
 	res = tipc_create(sock_net(sock->sk), new_sock, 0, 0);
-	if (!res) {
-		struct sock *new_sk = new_sock->sk;
-		struct tipc_sock *new_tsock = tipc_sk(new_sk);
-		struct tipc_port *new_tport = new_tsock->p;
-		u32 new_ref = new_tport->ref;
-		struct tipc_msg *msg = buf_msg(buf);
-
-		lock_sock(new_sk);
-
-		/*
-		 * Reject any stray messages received by new socket
-		 * before the socket lock was taken (very, very unlikely)
-		 */
-		reject_rx_queue(new_sk);
-
-		/* Connect new socket to it's peer */
-		new_tsock->peer_name.ref = msg_origport(msg);
-		new_tsock->peer_name.node = msg_orignode(msg);
-		tipc_connect2port(new_ref, &new_tsock->peer_name);
-		new_sock->state = SS_CONNECTED;
-
-		tipc_set_portimportance(new_ref, msg_importance(msg));
-		if (msg_named(msg)) {
-			new_tport->conn_type = msg_nametype(msg);
-			new_tport->conn_instance = msg_nameinst(msg);
-		}
+	if (res)
+		goto exit;
 
-		/*
-		 * Respond to 'SYN-' by discarding it & returning 'ACK'-.
-		 * Respond to 'SYN+' by queuing it on new socket.
-		 */
-		if (!msg_data_sz(msg)) {
-			struct msghdr m = {NULL,};
+	new_sk = new_sock->sk;
+	new_tsock = tipc_sk(new_sk);
+	new_tport = new_tsock->p;
+	new_ref = new_tport->ref;
+	msg = buf_msg(buf);
 
-			advance_rx_queue(sk);
-			send_packet(NULL, new_sock, &m, 0);
-		} else {
-			__skb_dequeue(&sk->sk_receive_queue);
-			__skb_queue_head(&new_sk->sk_receive_queue, buf);
-		}
-		release_sock(new_sk);
+	/* we lock on new_sk; but lockdep sees the lock on sk */
+	lock_sock_nested(new_sk, SINGLE_DEPTH_NESTING);
+
+	/*
+	 * Reject any stray messages received by new socket
+	 * before the socket lock was taken (very, very unlikely)
+	 */
+	reject_rx_queue(new_sk);
+
+	/* Connect new socket to it's peer */
+	new_tsock->peer_name.ref = msg_origport(msg);
+	new_tsock->peer_name.node = msg_orignode(msg);
+	tipc_connect(new_ref, &new_tsock->peer_name);
+	new_sock->state = SS_CONNECTED;
+
+	tipc_set_portimportance(new_ref, msg_importance(msg));
+	if (msg_named(msg)) {
+		new_tport->conn_type = msg_nametype(msg);
+		new_tport->conn_instance = msg_nameinst(msg);
 	}
+
+	/*
+	 * Respond to 'SYN-' by discarding it & returning 'ACK'-.
+	 * Respond to 'SYN+' by queuing it on new socket.
+	 */
+	if (!msg_data_sz(msg)) {
+		struct msghdr m = {NULL,};
+
+		advance_rx_queue(sk);
+		send_packet(NULL, new_sock, &m, 0);
+	} else {
+		__skb_dequeue(&sk->sk_receive_queue);
+		__skb_queue_head(&new_sk->sk_receive_queue, buf);
+	}
+	release_sock(new_sk);
+
 exit:
 	release_sock(sk);
 	return res;
@@ -1539,7 +1620,6 @@ restart:
 		/* Disconnect and send a 'FIN+' or 'FIN-' message to peer */
 		buf = __skb_dequeue(&sk->sk_receive_queue);
 		if (buf) {
-			atomic_dec(&tipc_queue_size);
 			if (TIPC_SKB_CB(buf)->handle != 0) {
 				kfree_skb(buf);
 				goto restart;
@@ -1556,10 +1636,11 @@ restart:
 
 	case SS_DISCONNECTING:
 
-		/* Discard any unreceived messages; wake up sleeping tasks */
+		/* Discard any unreceived messages */
 		discard_rx_queue(sk);
-		if (waitqueue_active(sk_sleep(sk)))
-			wake_up_interruptible(sk_sleep(sk));
+
+		/* Wake up anyone sleeping in poll */
+		sk->sk_state_change(sk);
 		res = 0;
 		break;
 
@@ -1677,7 +1758,7 @@ static int getsockopt(struct socket *sock,
 		/* no need to set "res", since already 0 at this point */
 		break;
 	case TIPC_NODE_RECVQ_DEPTH:
-		value = (u32)atomic_read(&tipc_queue_size);
+		value = 0; /* was tipc_queue_size, now obsolete */
 		break;
 	case TIPC_SOCK_RECVQ_DEPTH:
 		value = skb_queue_len(&sk->sk_receive_queue);
diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index 0f7d0d0..6b42d47 100644
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -462,7 +462,7 @@ static void subscr_named_msg_event(void *usr_handle,
 		kfree(subscriber);
 		return;
 	}
-	tipc_connect2port(subscriber->port_ref, orig);
+	tipc_connect(subscriber->port_ref, orig);
 
 	/* Lock server port (& save lock address for future use) */
 	subscriber->lock = tipc_port_lock(subscriber->port_ref)->lock;
diff --git a/net/unix/diag.c b/net/unix/diag.c
index 06748f1..5ac19dc 100644
--- a/net/unix/diag.c
+++ b/net/unix/diag.c
@@ -151,6 +151,9 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct unix_diag_r
 	    sock_diag_put_meminfo(sk, skb, UNIX_DIAG_MEMINFO))
 		goto out_nlmsg_trim;
 
+	if (nla_put_u8(skb, UNIX_DIAG_SHUTDOWN, sk->sk_shutdown))
+		goto out_nlmsg_trim;
+
 	return nlmsg_end(skb, nlh);
 
 out_nlmsg_trim:
diff --git a/net/unix/sysctl_net_unix.c b/net/unix/sysctl_net_unix.c
index b34b5b9..8800604 100644
--- a/net/unix/sysctl_net_unix.c
+++ b/net/unix/sysctl_net_unix.c
@@ -34,6 +34,10 @@ int __net_init unix_sysctl_register(struct net *net)
 	if (table == NULL)
 		goto err_alloc;
 
+	/* Don't export sysctls to unprivileged users */
+	if (net->user_ns != &init_user_ns)
+		table[0].procname = NULL;
+
 	table[0].data = &net->unx.sysctl_max_dgram_qlen;
 	net->unx.ctl = register_net_sysctl(net, "net/unix", table);
 	if (net->unx.ctl == NULL)
diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig
index fe4adb1..16d08b3 100644
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -140,14 +140,13 @@ config CFG80211_WEXT
 	  extensions with cfg80211-based drivers.
 
 config LIB80211
-	tristate "Common routines for IEEE802.11 drivers"
+	tristate
 	default n
 	help
 	  This options enables a library of common routines used
 	  by IEEE802.11 wireless LAN drivers.
 
-	  Drivers should select this themselves if needed.  Say Y if
-	  you want this built into your kernel.
+	  Drivers should select this themselves if needed.
 
 config LIB80211_CRYPT_WEP
 	tristate
diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index 0f7e0d6..a761670 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -10,11 +10,13 @@ obj-$(CONFIG_WEXT_SPY) += wext-spy.o
 obj-$(CONFIG_WEXT_PRIV) += wext-priv.o
 
 cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o
-cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o mesh.o ap.o
+cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o mesh.o ap.o trace.o
 cfg80211-$(CONFIG_CFG80211_DEBUGFS) += debugfs.o
 cfg80211-$(CONFIG_CFG80211_WEXT) += wext-compat.o wext-sme.o
 cfg80211-$(CONFIG_CFG80211_INTERNAL_REGDB) += regdb.o
 
+CFLAGS_trace.o := -I$(src)
+
 ccflags-y += -D__CHECK_ENDIAN__
 
 $(obj)/regdb.c: $(src)/db.txt $(src)/genregdb.awk
diff --git a/net/wireless/ap.c b/net/wireless/ap.c
index fcc60d8..324e8d8 100644
--- a/net/wireless/ap.c
+++ b/net/wireless/ap.c
@@ -3,6 +3,7 @@
 #include <net/cfg80211.h>
 #include "nl80211.h"
 #include "core.h"
+#include "rdev-ops.h"
 
 
 static int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
@@ -23,10 +24,11 @@ static int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
 	if (!wdev->beacon_interval)
 		return -ENOENT;
 
-	err = rdev->ops->stop_ap(&rdev->wiphy, dev);
+	err = rdev_stop_ap(rdev, dev);
 	if (!err) {
 		wdev->beacon_interval = 0;
 		wdev->channel = NULL;
+		wdev->ssid_len = 0;
 	}
 
 	return err;
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 2f876b9..a7990bb 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -9,90 +9,303 @@
 #include <linux/export.h>
 #include <net/cfg80211.h>
 #include "core.h"
+#include "rdev-ops.h"
 
-struct ieee80211_channel *
-rdev_freq_to_chan(struct cfg80211_registered_device *rdev,
-		  int freq, enum nl80211_channel_type channel_type)
+void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
+			     struct ieee80211_channel *chan,
+			     enum nl80211_channel_type chan_type)
 {
-	struct ieee80211_channel *chan;
-	struct ieee80211_sta_ht_cap *ht_cap;
+	if (WARN_ON(!chan))
+		return;
+
+	chandef->chan = chan;
+	chandef->center_freq2 = 0;
+
+	switch (chan_type) {
+	case NL80211_CHAN_NO_HT:
+		chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
+		chandef->center_freq1 = chan->center_freq;
+		break;
+	case NL80211_CHAN_HT20:
+		chandef->width = NL80211_CHAN_WIDTH_20;
+		chandef->center_freq1 = chan->center_freq;
+		break;
+	case NL80211_CHAN_HT40PLUS:
+		chandef->width = NL80211_CHAN_WIDTH_40;
+		chandef->center_freq1 = chan->center_freq + 10;
+		break;
+	case NL80211_CHAN_HT40MINUS:
+		chandef->width = NL80211_CHAN_WIDTH_40;
+		chandef->center_freq1 = chan->center_freq - 10;
+		break;
+	default:
+		WARN_ON(1);
+	}
+}
+EXPORT_SYMBOL(cfg80211_chandef_create);
+
+bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef)
+{
+	u32 control_freq;
+
+	if (!chandef->chan)
+		return false;
 
-	chan = ieee80211_get_channel(&rdev->wiphy, freq);
+	control_freq = chandef->chan->center_freq;
+
+	switch (chandef->width) {
+	case NL80211_CHAN_WIDTH_20:
+	case NL80211_CHAN_WIDTH_20_NOHT:
+		if (chandef->center_freq1 != control_freq)
+			return false;
+		if (chandef->center_freq2)
+			return false;
+		break;
+	case NL80211_CHAN_WIDTH_40:
+		if (chandef->center_freq1 != control_freq + 10 &&
+		    chandef->center_freq1 != control_freq - 10)
+			return false;
+		if (chandef->center_freq2)
+			return false;
+		break;
+	case NL80211_CHAN_WIDTH_80P80:
+		if (chandef->center_freq1 != control_freq + 30 &&
+		    chandef->center_freq1 != control_freq + 10 &&
+		    chandef->center_freq1 != control_freq - 10 &&
+		    chandef->center_freq1 != control_freq - 30)
+			return false;
+		if (!chandef->center_freq2)
+			return false;
+		break;
+	case NL80211_CHAN_WIDTH_80:
+		if (chandef->center_freq1 != control_freq + 30 &&
+		    chandef->center_freq1 != control_freq + 10 &&
+		    chandef->center_freq1 != control_freq - 10 &&
+		    chandef->center_freq1 != control_freq - 30)
+			return false;
+		if (chandef->center_freq2)
+			return false;
+		break;
+	case NL80211_CHAN_WIDTH_160:
+		if (chandef->center_freq1 != control_freq + 70 &&
+		    chandef->center_freq1 != control_freq + 50 &&
+		    chandef->center_freq1 != control_freq + 30 &&
+		    chandef->center_freq1 != control_freq + 10 &&
+		    chandef->center_freq1 != control_freq - 10 &&
+		    chandef->center_freq1 != control_freq - 30 &&
+		    chandef->center_freq1 != control_freq - 50 &&
+		    chandef->center_freq1 != control_freq - 70)
+			return false;
+		if (chandef->center_freq2)
+			return false;
+		break;
+	default:
+		return false;
+	}
+
+	return true;
+}
+EXPORT_SYMBOL(cfg80211_chandef_valid);
+
+static void chandef_primary_freqs(const struct cfg80211_chan_def *c,
+				  int *pri40, int *pri80)
+{
+	int tmp;
+
+	switch (c->width) {
+	case NL80211_CHAN_WIDTH_40:
+		*pri40 = c->center_freq1;
+		*pri80 = 0;
+		break;
+	case NL80211_CHAN_WIDTH_80:
+	case NL80211_CHAN_WIDTH_80P80:
+		*pri80 = c->center_freq1;
+		/* n_P20 */
+		tmp = (30 + c->chan->center_freq - c->center_freq1)/20;
+		/* n_P40 */
+		tmp /= 2;
+		/* freq_P40 */
+		*pri40 = c->center_freq1 - 20 + 40 * tmp;
+		break;
+	case NL80211_CHAN_WIDTH_160:
+		/* n_P20 */
+		tmp = (70 + c->chan->center_freq - c->center_freq1)/20;
+		/* n_P40 */
+		tmp /= 2;
+		/* freq_P40 */
+		*pri40 = c->center_freq1 - 60 + 40 * tmp;
+		/* n_P80 */
+		tmp /= 2;
+		*pri80 = c->center_freq1 - 40 + 80 * tmp;
+		break;
+	default:
+		WARN_ON_ONCE(1);
+	}
+}
 
-	/* Primary channel not allowed */
-	if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
+const struct cfg80211_chan_def *
+cfg80211_chandef_compatible(const struct cfg80211_chan_def *c1,
+			    const struct cfg80211_chan_def *c2)
+{
+	u32 c1_pri40, c1_pri80, c2_pri40, c2_pri80;
+
+	/* If they are identical, return */
+	if (cfg80211_chandef_identical(c1, c2))
+		return c1;
+
+	/* otherwise, must have same control channel */
+	if (c1->chan != c2->chan)
 		return NULL;
 
-	if (channel_type == NL80211_CHAN_HT40MINUS &&
-	    chan->flags & IEEE80211_CHAN_NO_HT40MINUS)
+	/*
+	 * If they have the same width, but aren't identical,
+	 * then they can't be compatible.
+	 */
+	if (c1->width == c2->width)
 		return NULL;
-	else if (channel_type == NL80211_CHAN_HT40PLUS &&
-		 chan->flags & IEEE80211_CHAN_NO_HT40PLUS)
+
+	if (c1->width == NL80211_CHAN_WIDTH_20_NOHT ||
+	    c1->width == NL80211_CHAN_WIDTH_20)
+		return c2;
+
+	if (c2->width == NL80211_CHAN_WIDTH_20_NOHT ||
+	    c2->width == NL80211_CHAN_WIDTH_20)
+		return c1;
+
+	chandef_primary_freqs(c1, &c1_pri40, &c1_pri80);
+	chandef_primary_freqs(c2, &c2_pri40, &c2_pri80);
+
+	if (c1_pri40 != c2_pri40)
 		return NULL;
 
-	ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
+	WARN_ON(!c1_pri80 && !c2_pri80);
+	if (c1_pri80 && c2_pri80 && c1_pri80 != c2_pri80)
+		return NULL;
 
-	if (channel_type != NL80211_CHAN_NO_HT) {
-		if (!ht_cap->ht_supported)
-			return NULL;
+	if (c1->width > c2->width)
+		return c1;
+	return c2;
+}
+EXPORT_SYMBOL(cfg80211_chandef_compatible);
 
-		if (channel_type != NL80211_CHAN_HT20 &&
-		    (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
-		    ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
-			return NULL;
+static bool cfg80211_secondary_chans_ok(struct wiphy *wiphy,
+					u32 center_freq, u32 bandwidth,
+					u32 prohibited_flags)
+{
+	struct ieee80211_channel *c;
+	u32 freq;
+
+	for (freq = center_freq - bandwidth/2 + 10;
+	     freq <= center_freq + bandwidth/2 - 10;
+	     freq += 20) {
+		c = ieee80211_get_channel(wiphy, freq);
+		if (!c || c->flags & prohibited_flags)
+			return false;
 	}
 
-	return chan;
+	return true;
 }
 
-bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
-				  struct ieee80211_channel *chan,
-				  enum nl80211_channel_type channel_type)
+bool cfg80211_chandef_usable(struct wiphy *wiphy,
+			     const struct cfg80211_chan_def *chandef,
+			     u32 prohibited_flags)
 {
-	struct ieee80211_channel *sec_chan;
-	int diff;
+	struct ieee80211_sta_ht_cap *ht_cap;
+	struct ieee80211_sta_vht_cap *vht_cap;
+	u32 width, control_freq;
 
-	switch (channel_type) {
-	case NL80211_CHAN_HT40PLUS:
-		diff = 20;
+	if (WARN_ON(!cfg80211_chandef_valid(chandef)))
+		return false;
+
+	ht_cap = &wiphy->bands[chandef->chan->band]->ht_cap;
+	vht_cap = &wiphy->bands[chandef->chan->band]->vht_cap;
+
+	control_freq = chandef->chan->center_freq;
+
+	switch (chandef->width) {
+	case NL80211_CHAN_WIDTH_20:
+		if (!ht_cap->ht_supported)
+			return false;
+	case NL80211_CHAN_WIDTH_20_NOHT:
+		width = 20;
 		break;
-	case NL80211_CHAN_HT40MINUS:
-		diff = -20;
+	case NL80211_CHAN_WIDTH_40:
+		width = 40;
+		if (!ht_cap->ht_supported)
+			return false;
+		if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
+		    ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT)
+			return false;
+		if (chandef->center_freq1 < control_freq &&
+		    chandef->chan->flags & IEEE80211_CHAN_NO_HT40MINUS)
+			return false;
+		if (chandef->center_freq1 > control_freq &&
+		    chandef->chan->flags & IEEE80211_CHAN_NO_HT40PLUS)
+			return false;
+		break;
+	case NL80211_CHAN_WIDTH_80P80:
+		if (!(vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ))
+			return false;
+	case NL80211_CHAN_WIDTH_80:
+		if (!vht_cap->vht_supported)
+			return false;
+		width = 80;
+		break;
+	case NL80211_CHAN_WIDTH_160:
+		if (!vht_cap->vht_supported)
+			return false;
+		if (!(vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ))
+			return false;
+		width = 160;
 		break;
 	default:
-		return true;
+		WARN_ON_ONCE(1);
+		return false;
 	}
 
-	sec_chan = ieee80211_get_channel(wiphy, chan->center_freq + diff);
-	if (!sec_chan)
-		return false;
+	/* TODO: missing regulatory check on 80/160 bandwidth */
 
-	/* we'll need a DFS capability later */
-	if (sec_chan->flags & (IEEE80211_CHAN_DISABLED |
-			       IEEE80211_CHAN_PASSIVE_SCAN |
-			       IEEE80211_CHAN_NO_IBSS |
-			       IEEE80211_CHAN_RADAR))
+	if (width > 20)
+		prohibited_flags |= IEEE80211_CHAN_NO_OFDM;
+
+	if (!cfg80211_secondary_chans_ok(wiphy, chandef->center_freq1,
+					 width, prohibited_flags))
 		return false;
 
-	return true;
+	if (!chandef->center_freq2)
+		return true;
+	return cfg80211_secondary_chans_ok(wiphy, chandef->center_freq2,
+					   width, prohibited_flags);
 }
-EXPORT_SYMBOL(cfg80211_can_beacon_sec_chan);
+EXPORT_SYMBOL(cfg80211_chandef_usable);
 
-int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
-				 int freq, enum nl80211_channel_type chantype)
+bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
+			     struct cfg80211_chan_def *chandef)
 {
-	struct ieee80211_channel *chan;
+	bool res;
+
+	trace_cfg80211_reg_can_beacon(wiphy, chandef);
 
+	res = cfg80211_chandef_usable(wiphy, chandef,
+				      IEEE80211_CHAN_DISABLED |
+				      IEEE80211_CHAN_PASSIVE_SCAN |
+				      IEEE80211_CHAN_NO_IBSS |
+				      IEEE80211_CHAN_RADAR);
+
+	trace_cfg80211_return_bool(res);
+	return res;
+}
+EXPORT_SYMBOL(cfg80211_reg_can_beacon);
+
+int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
+				 struct cfg80211_chan_def *chandef)
+{
 	if (!rdev->ops->set_monitor_channel)
 		return -EOPNOTSUPP;
 	if (!cfg80211_has_monitors_only(rdev))
 		return -EBUSY;
 
-	chan = rdev_freq_to_chan(rdev, freq, chantype);
-	if (!chan)
-		return -EINVAL;
-
-	return rdev->ops->set_monitor_channel(&rdev->wiphy, chan, chantype);
+	return rdev_set_monitor_channel(rdev, chandef);
 }
 
 void
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 3f72530..14d9904 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -26,6 +26,7 @@
 #include "debugfs.h"
 #include "wext-compat.h"
 #include "ethtool.h"
+#include "rdev-ops.h"
 
 /* name for sysfs, %d is appended */
 #define PHY_NAME "phy"
@@ -216,7 +217,7 @@ static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data)
 {
 	struct cfg80211_registered_device *rdev = data;
 
-	rdev->ops->rfkill_poll(&rdev->wiphy);
+	rdev_rfkill_poll(rdev);
 }
 
 static int cfg80211_rfkill_set_block(void *data, bool blocked)
@@ -240,7 +241,7 @@ static int cfg80211_rfkill_set_block(void *data, bool blocked)
 		case NL80211_IFTYPE_P2P_DEVICE:
 			if (!wdev->p2p_started)
 				break;
-			rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);
+			rdev_stop_p2p_device(rdev, wdev);
 			wdev->p2p_started = false;
 			rdev->opencount--;
 			break;
@@ -325,6 +326,8 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
 	mutex_init(&rdev->devlist_mtx);
 	mutex_init(&rdev->sched_scan_mtx);
 	INIT_LIST_HEAD(&rdev->wdev_list);
+	INIT_LIST_HEAD(&rdev->beacon_registrations);
+	spin_lock_init(&rdev->beacon_registrations_lock);
 	spin_lock_init(&rdev->bss_lock);
 	INIT_LIST_HEAD(&rdev->bss_list);
 	INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done);
@@ -370,6 +373,8 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
 	rdev->wiphy.rts_threshold = (u32) -1;
 	rdev->wiphy.coverage_class = 0;
 
+	rdev->wiphy.features = NL80211_FEATURE_SCAN_FLUSH;
+
 	return &rdev->wiphy;
 }
 EXPORT_SYMBOL(wiphy_new);
@@ -687,7 +692,7 @@ void wiphy_unregister(struct wiphy *wiphy)
 	flush_work(&rdev->event_work);
 
 	if (rdev->wowlan && rdev->ops->set_wakeup)
-		rdev->ops->set_wakeup(&rdev->wiphy, false);
+		rdev_set_wakeup(rdev, false);
 	cfg80211_rdev_free_wowlan(rdev);
 }
 EXPORT_SYMBOL(wiphy_unregister);
@@ -695,10 +700,15 @@ EXPORT_SYMBOL(wiphy_unregister);
 void cfg80211_dev_free(struct cfg80211_registered_device *rdev)
 {
 	struct cfg80211_internal_bss *scan, *tmp;
+	struct cfg80211_beacon_registration *reg, *treg;
 	rfkill_destroy(rdev->rfkill);
 	mutex_destroy(&rdev->mtx);
 	mutex_destroy(&rdev->devlist_mtx);
 	mutex_destroy(&rdev->sched_scan_mtx);
+	list_for_each_entry_safe(reg, treg, &rdev->beacon_registrations, list) {
+		list_del(&reg->list);
+		kfree(reg);
+	}
 	list_for_each_entry_safe(scan, tmp, &rdev->bss_list, list)
 		cfg80211_put_bss(&scan->pub);
 	kfree(rdev);
@@ -770,7 +780,7 @@ void cfg80211_unregister_wdev(struct wireless_dev *wdev)
 	case NL80211_IFTYPE_P2P_DEVICE:
 		if (!wdev->p2p_started)
 			break;
-		rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);
+		rdev_stop_p2p_device(rdev, wdev);
 		wdev->p2p_started = false;
 		rdev->opencount--;
 		break;
@@ -961,9 +971,8 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
 		if ((wdev->iftype == NL80211_IFTYPE_STATION ||
 		     wdev->iftype == NL80211_IFTYPE_P2P_CLIENT) &&
 		    rdev->ops->set_power_mgmt)
-			if (rdev->ops->set_power_mgmt(wdev->wiphy, dev,
-						      wdev->ps,
-						      wdev->ps_timeout)) {
+			if (rdev_set_power_mgmt(rdev, dev, wdev->ps,
+						wdev->ps_timeout)) {
 				/* assume this means it's off */
 				wdev->ps = false;
 			}
diff --git a/net/wireless/core.h b/net/wireless/core.h
index a343be4..3563097 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -55,7 +55,8 @@ struct cfg80211_registered_device {
 	int opencount; /* also protected by devlist_mtx */
 	wait_queue_head_t dev_wait;
 
-	u32 ap_beacons_nlportid;
+	struct list_head beacon_registrations;
+	spinlock_t beacon_registrations_lock;
 
 	/* protected by RTNL only */
 	int num_running_ifaces;
@@ -137,8 +138,6 @@ struct cfg80211_internal_bss {
 	unsigned long ts;
 	struct kref ref;
 	atomic_t hold;
-	bool beacon_ies_allocated;
-	bool proberesp_ies_allocated;
 
 	/* must be last because of priv member */
 	struct cfg80211_bss pub;
@@ -260,6 +259,10 @@ enum cfg80211_chan_mode {
 	CHAN_MODE_EXCLUSIVE,
 };
 
+struct cfg80211_beacon_registration {
+	struct list_head list;
+	u32 nlportid;
+};
 
 /* free object */
 extern void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
@@ -304,9 +307,9 @@ int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
 		       const struct mesh_config *conf);
 int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
 			struct net_device *dev);
-int cfg80211_set_mesh_freq(struct cfg80211_registered_device *rdev,
-			   struct wireless_dev *wdev, int freq,
-			   enum nl80211_channel_type channel_type);
+int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
+			      struct wireless_dev *wdev,
+			      struct cfg80211_chan_def *chandef);
 
 /* AP */
 int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
@@ -320,13 +323,15 @@ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 			 const u8 *bssid,
 			 const u8 *ssid, int ssid_len,
 			 const u8 *ie, int ie_len,
-			 const u8 *key, int key_len, int key_idx);
+			 const u8 *key, int key_len, int key_idx,
+			 const u8 *sae_data, int sae_data_len);
 int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 		       struct net_device *dev, struct ieee80211_channel *chan,
 		       enum nl80211_auth_type auth_type, const u8 *bssid,
 		       const u8 *ssid, int ssid_len,
 		       const u8 *ie, int ie_len,
-		       const u8 *key, int key_len, int key_idx);
+		       const u8 *key, int key_len, int key_idx,
+		       const u8 *sae_data, int sae_data_len);
 int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 			  struct net_device *dev,
 			  struct ieee80211_channel *chan,
@@ -371,10 +376,8 @@ void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 			  struct wireless_dev *wdev,
 			  struct ieee80211_channel *chan, bool offchan,
-			  enum nl80211_channel_type channel_type,
-			  bool channel_type_valid, unsigned int wait,
-			  const u8 *buf, size_t len, bool no_cck,
-			  bool dont_wait_for_ack, u64 *cookie);
+			  unsigned int wait, const u8 *buf, size_t len,
+			  bool no_cck, bool dont_wait_for_ack, u64 *cookie);
 void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
 			       const struct ieee80211_ht_cap *ht_capa_mask);
 
@@ -465,11 +468,8 @@ cfg80211_get_chan_state(struct wireless_dev *wdev,
 		        struct ieee80211_channel **chan,
 		        enum cfg80211_chan_mode *chanmode);
 
-struct ieee80211_channel *
-rdev_freq_to_chan(struct cfg80211_registered_device *rdev,
-		  int freq, enum nl80211_channel_type channel_type);
 int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
-				 int freq, enum nl80211_channel_type chantype);
+				 struct cfg80211_chan_def *chandef);
 
 int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
 			   const u8 *rates, unsigned int n_rates,
diff --git a/net/wireless/ethtool.c b/net/wireless/ethtool.c
index 7eecdf4..48c48ff 100644
--- a/net/wireless/ethtool.c
+++ b/net/wireless/ethtool.c
@@ -2,6 +2,7 @@
 #include <net/cfg80211.h>
 #include "core.h"
 #include "ethtool.h"
+#include "rdev-ops.h"
 
 static void cfg80211_get_drvinfo(struct net_device *dev,
 					struct ethtool_drvinfo *info)
@@ -47,9 +48,8 @@ static void cfg80211_get_ringparam(struct net_device *dev,
 	memset(rp, 0, sizeof(*rp));
 
 	if (rdev->ops->get_ringparam)
-		rdev->ops->get_ringparam(wdev->wiphy,
-					 &rp->tx_pending, &rp->tx_max_pending,
-					 &rp->rx_pending, &rp->rx_max_pending);
+		rdev_get_ringparam(rdev, &rp->tx_pending, &rp->tx_max_pending,
+				   &rp->rx_pending, &rp->rx_max_pending);
 }
 
 static int cfg80211_set_ringparam(struct net_device *dev,
@@ -62,8 +62,7 @@ static int cfg80211_set_ringparam(struct net_device *dev,
 		return -EINVAL;
 
 	if (rdev->ops->set_ringparam)
-		return rdev->ops->set_ringparam(wdev->wiphy,
-						rp->tx_pending, rp->rx_pending);
+		return rdev_set_ringparam(rdev, rp->tx_pending, rp->rx_pending);
 
 	return -ENOTSUPP;
 }
@@ -73,7 +72,7 @@ static int cfg80211_get_sset_count(struct net_device *dev, int sset)
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 	if (rdev->ops->get_et_sset_count)
-		return rdev->ops->get_et_sset_count(wdev->wiphy, dev, sset);
+		return rdev_get_et_sset_count(rdev, dev, sset);
 	return -EOPNOTSUPP;
 }
 
@@ -83,7 +82,7 @@ static void cfg80211_get_stats(struct net_device *dev,
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 	if (rdev->ops->get_et_stats)
-		rdev->ops->get_et_stats(wdev->wiphy, dev, stats, data);
+		rdev_get_et_stats(rdev, dev, stats, data);
 }
 
 static void cfg80211_get_strings(struct net_device *dev, u32 sset, u8 *data)
@@ -91,7 +90,7 @@ static void cfg80211_get_strings(struct net_device *dev, u32 sset, u8 *data)
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 	if (rdev->ops->get_et_strings)
-		rdev->ops->get_et_strings(wdev->wiphy, dev, sset, data);
+		rdev_get_et_strings(rdev, dev, sset, data);
 }
 
 const struct ethtool_ops cfg80211_ethtool_ops = {
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index ca5672f..9b9551e 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -11,6 +11,7 @@
 #include <net/cfg80211.h>
 #include "wext-compat.h"
 #include "nl80211.h"
+#include "rdev-ops.h"
 
 
 void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid)
@@ -61,6 +62,8 @@ void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp)
 	struct cfg80211_event *ev;
 	unsigned long flags;
 
+	trace_cfg80211_ibss_joined(dev, bssid);
+
 	CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING);
 
 	ev = kzalloc(sizeof(*ev), gfp);
@@ -97,9 +100,9 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 		* 11a for maximum compatibility.
 		*/
 		struct ieee80211_supported_band *sband =
-			rdev->wiphy.bands[params->channel->band];
+			rdev->wiphy.bands[params->chandef.chan->band];
 		int j;
-		u32 flag = params->channel->band == IEEE80211_BAND_5GHZ ?
+		u32 flag = params->chandef.chan->band == IEEE80211_BAND_5GHZ ?
 			IEEE80211_RATE_MANDATORY_A :
 			IEEE80211_RATE_MANDATORY_B;
 
@@ -115,11 +118,11 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 
 	wdev->ibss_fixed = params->channel_fixed;
 #ifdef CONFIG_CFG80211_WEXT
-	wdev->wext.ibss.channel = params->channel;
+	wdev->wext.ibss.chandef = params->chandef;
 #endif
 	wdev->sme_state = CFG80211_SME_CONNECTING;
 
-	err = cfg80211_can_use_chan(rdev, wdev, params->channel,
+	err = cfg80211_can_use_chan(rdev, wdev, params->chandef.chan,
 				    params->channel_fixed
 				    ? CHAN_MODE_SHARED
 				    : CHAN_MODE_EXCLUSIVE);
@@ -128,7 +131,7 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 		return err;
 	}
 
-	err = rdev->ops->join_ibss(&rdev->wiphy, dev, params);
+	err = rdev_join_ibss(rdev, dev, params);
 	if (err) {
 		wdev->connect_keys = NULL;
 		wdev->sme_state = CFG80211_SME_IDLE;
@@ -175,7 +178,7 @@ static void __cfg80211_clear_ibss(struct net_device *dev, bool nowext)
 	 */
 	if (rdev->ops->del_key)
 		for (i = 0; i < 6; i++)
-			rdev->ops->del_key(wdev->wiphy, dev, i, false, NULL);
+			rdev_del_key(rdev, dev, i, false, NULL);
 
 	if (wdev->current_bss) {
 		cfg80211_unhold_bss(wdev->current_bss);
@@ -211,7 +214,7 @@ int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
 	if (!wdev->ssid_len)
 		return -ENOLINK;
 
-	err = rdev->ops->leave_ibss(&rdev->wiphy, dev);
+	err = rdev_leave_ibss(rdev, dev);
 
 	if (err)
 		return err;
@@ -248,7 +251,9 @@ int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
 		wdev->wext.ibss.beacon_interval = 100;
 
 	/* try to find an IBSS channel if none requested ... */
-	if (!wdev->wext.ibss.channel) {
+	if (!wdev->wext.ibss.chandef.chan) {
+		wdev->wext.ibss.chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
+
 		for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 			struct ieee80211_supported_band *sband;
 			struct ieee80211_channel *chan;
@@ -263,15 +268,15 @@ int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
 					continue;
 				if (chan->flags & IEEE80211_CHAN_DISABLED)
 					continue;
-				wdev->wext.ibss.channel = chan;
+				wdev->wext.ibss.chandef.chan = chan;
 				break;
 			}
 
-			if (wdev->wext.ibss.channel)
+			if (wdev->wext.ibss.chandef.chan)
 				break;
 		}
 
-		if (!wdev->wext.ibss.channel)
+		if (!wdev->wext.ibss.chandef.chan)
 			return -EINVAL;
 	}
 
@@ -333,7 +338,7 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
 			return -EINVAL;
 	}
 
-	if (wdev->wext.ibss.channel == chan)
+	if (wdev->wext.ibss.chandef.chan == chan)
 		return 0;
 
 	wdev_lock(wdev);
@@ -346,7 +351,8 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
 		return err;
 
 	if (chan) {
-		wdev->wext.ibss.channel = chan;
+		wdev->wext.ibss.chandef.chan = chan;
+		wdev->wext.ibss.chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
 		wdev->wext.ibss.channel_fixed = true;
 	} else {
 		/* cfg80211_ibss_wext_join will pick one if needed */
@@ -376,8 +382,8 @@ int cfg80211_ibss_wext_giwfreq(struct net_device *dev,
 	wdev_lock(wdev);
 	if (wdev->current_bss)
 		chan = wdev->current_bss->pub.channel;
-	else if (wdev->wext.ibss.channel)
-		chan = wdev->wext.ibss.channel;
+	else if (wdev->wext.ibss.chandef.chan)
+		chan = wdev->wext.ibss.chandef.chan;
 	wdev_unlock(wdev);
 
 	if (chan) {
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index c384e77..f9d6ce5 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -3,6 +3,7 @@
 #include <net/cfg80211.h>
 #include "nl80211.h"
 #include "core.h"
+#include "rdev-ops.h"
 
 /* Default values, timeouts in ms */
 #define MESH_TTL 		31
@@ -72,8 +73,6 @@ const struct mesh_config default_mesh_config = {
 
 const struct mesh_setup default_mesh_setup = {
 	/* cfg80211_join_mesh() will pick a channel if needed */
-	.channel = NULL,
-	.channel_type = NL80211_CHAN_NO_HT,
 	.sync_method = IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET,
 	.path_sel_proto = IEEE80211_PATH_PROTOCOL_HWMP,
 	.path_metric = IEEE80211_PATH_METRIC_AIRTIME,
@@ -110,13 +109,12 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
 	if (!rdev->ops->join_mesh)
 		return -EOPNOTSUPP;
 
-	if (!setup->channel) {
+	if (!setup->chandef.chan) {
 		/* if no channel explicitly given, use preset channel */
-		setup->channel = wdev->preset_chan;
-		setup->channel_type = wdev->preset_chantype;
+		setup->chandef = wdev->preset_chandef;
 	}
 
-	if (!setup->channel) {
+	if (!setup->chandef.chan) {
 		/* if we don't have that either, use the first usable channel */
 		enum ieee80211_band band;
 
@@ -136,35 +134,35 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
 						   IEEE80211_CHAN_DISABLED |
 						   IEEE80211_CHAN_RADAR))
 					continue;
-				setup->channel = chan;
+				setup->chandef.chan = chan;
 				break;
 			}
 
-			if (setup->channel)
+			if (setup->chandef.chan)
 				break;
 		}
 
 		/* no usable channel ... */
-		if (!setup->channel)
+		if (!setup->chandef.chan)
 			return -EINVAL;
 
-		setup->channel_type = NL80211_CHAN_NO_HT;
+		setup->chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
+		setup->chandef.center_freq1 = setup->chandef.chan->center_freq;
 	}
 
-	if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, setup->channel,
-					  setup->channel_type))
+	if (!cfg80211_reg_can_beacon(&rdev->wiphy, &setup->chandef))
 		return -EINVAL;
 
-	err = cfg80211_can_use_chan(rdev, wdev, setup->channel,
+	err = cfg80211_can_use_chan(rdev, wdev, setup->chandef.chan,
 				    CHAN_MODE_SHARED);
 	if (err)
 		return err;
 
-	err = rdev->ops->join_mesh(&rdev->wiphy, dev, conf, setup);
+	err = rdev_join_mesh(rdev, dev, conf, setup);
 	if (!err) {
 		memcpy(wdev->ssid, setup->mesh_id, setup->mesh_id_len);
 		wdev->mesh_id_len = setup->mesh_id_len;
-		wdev->channel = setup->channel;
+		wdev->channel = setup->chandef.chan;
 	}
 
 	return err;
@@ -187,20 +185,12 @@ int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
 	return err;
 }
 
-int cfg80211_set_mesh_freq(struct cfg80211_registered_device *rdev,
-			   struct wireless_dev *wdev, int freq,
-			   enum nl80211_channel_type channel_type)
+int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
+			      struct wireless_dev *wdev,
+			      struct cfg80211_chan_def *chandef)
 {
-	struct ieee80211_channel *channel;
 	int err;
 
-	channel = rdev_freq_to_chan(rdev, freq, channel_type);
-	if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
-						      channel,
-						      channel_type)) {
-		return -EINVAL;
-	}
-
 	/*
 	 * Workaround for libertas (only!), it puts the interface
 	 * into mesh mode but doesn't implement join_mesh. Instead,
@@ -209,22 +199,21 @@ int cfg80211_set_mesh_freq(struct cfg80211_registered_device *rdev,
 	 * compatible with 802.11 mesh.
 	 */
 	if (rdev->ops->libertas_set_mesh_channel) {
-		if (channel_type != NL80211_CHAN_NO_HT)
+		if (chandef->width != NL80211_CHAN_WIDTH_20_NOHT)
 			return -EINVAL;
 
 		if (!netif_running(wdev->netdev))
 			return -ENETDOWN;
 
-		err = cfg80211_can_use_chan(rdev, wdev, channel,
+		err = cfg80211_can_use_chan(rdev, wdev, chandef->chan,
 					    CHAN_MODE_SHARED);
 		if (err)
 			return err;
 
-		err = rdev->ops->libertas_set_mesh_channel(&rdev->wiphy,
-							   wdev->netdev,
-							   channel);
+		err = rdev_libertas_set_mesh_channel(rdev, wdev->netdev,
+						     chandef->chan);
 		if (!err)
-			wdev->channel = channel;
+			wdev->channel = chandef->chan;
 
 		return err;
 	}
@@ -232,8 +221,7 @@ int cfg80211_set_mesh_freq(struct cfg80211_registered_device *rdev,
 	if (wdev->mesh_id_len)
 		return -EBUSY;
 
-	wdev->preset_chan = channel;
-	wdev->preset_chantype = channel_type;
+	wdev->preset_chandef = *chandef;
 	return 0;
 }
 
@@ -242,6 +230,7 @@ void cfg80211_notify_new_peer_candidate(struct net_device *dev,
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
+	trace_cfg80211_notify_new_peer_candidate(dev, macaddr);
 	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
 		return;
 
@@ -267,7 +256,7 @@ static int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
 	if (!wdev->mesh_id_len)
 		return -ENOTCONN;
 
-	err = rdev->ops->leave_mesh(&rdev->wiphy, dev);
+	err = rdev_leave_mesh(rdev, dev);
 	if (!err) {
 		wdev->mesh_id_len = 0;
 		wdev->channel = NULL;
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 904a7f3..5e8123e 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -15,6 +15,8 @@
 #include <net/iw_handler.h>
 #include "core.h"
 #include "nl80211.h"
+#include "rdev-ops.h"
+
 
 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
 {
@@ -22,6 +24,7 @@ void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_send_rx_auth(dev);
 	wdev_lock(wdev);
 
 	nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
@@ -42,6 +45,7 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
 	u8 *ie = mgmt->u.assoc_resp.variable;
 	int ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
 
+	trace_cfg80211_send_rx_assoc(dev, bss);
 	wdev_lock(wdev);
 
 	status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
@@ -98,6 +102,7 @@ void __cfg80211_send_deauth(struct net_device *dev,
 	const u8 *bssid = mgmt->bssid;
 	bool was_current = false;
 
+	trace___cfg80211_send_deauth(dev);
 	ASSERT_WDEV_LOCK(wdev);
 
 	if (wdev->current_bss &&
@@ -147,6 +152,7 @@ void __cfg80211_send_disassoc(struct net_device *dev,
 	u16 reason_code;
 	bool from_ap;
 
+	trace___cfg80211_send_disassoc(dev);
 	ASSERT_WDEV_LOCK(wdev);
 
 	nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL);
@@ -188,6 +194,7 @@ void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_send_unprot_deauth(dev);
 	nl80211_send_unprot_deauth(rdev, dev, buf, len, GFP_ATOMIC);
 }
 EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
@@ -199,6 +206,7 @@ void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_send_unprot_disassoc(dev);
 	nl80211_send_unprot_disassoc(rdev, dev, buf, len, GFP_ATOMIC);
 }
 EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
@@ -209,6 +217,7 @@ void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_send_auth_timeout(dev, addr);
 	wdev_lock(wdev);
 
 	nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL);
@@ -227,6 +236,7 @@ void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr)
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_send_assoc_timeout(dev, addr);
 	wdev_lock(wdev);
 
 	nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL);
@@ -261,6 +271,7 @@ void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
 	}
 #endif
 
+	trace_cfg80211_michael_mic_failure(dev, addr, key_type, key_id, tsc);
 	nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc, gfp);
 }
 EXPORT_SYMBOL(cfg80211_michael_mic_failure);
@@ -273,7 +284,8 @@ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 			 const u8 *bssid,
 			 const u8 *ssid, int ssid_len,
 			 const u8 *ie, int ie_len,
-			 const u8 *key, int key_len, int key_idx)
+			 const u8 *key, int key_len, int key_idx,
+			 const u8 *sae_data, int sae_data_len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_auth_request req;
@@ -293,6 +305,8 @@ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 
 	req.ie = ie;
 	req.ie_len = ie_len;
+	req.sae_data = sae_data;
+	req.sae_data_len = sae_data_len;
 	req.auth_type = auth_type;
 	req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
 				   WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
@@ -307,7 +321,7 @@ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 	if (err)
 		goto out;
 
-	err = rdev->ops->auth(&rdev->wiphy, dev, &req);
+	err = rdev_auth(rdev, dev, &req);
 
 out:
 	cfg80211_put_bss(req.bss);
@@ -319,7 +333,8 @@ int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 		       enum nl80211_auth_type auth_type, const u8 *bssid,
 		       const u8 *ssid, int ssid_len,
 		       const u8 *ie, int ie_len,
-		       const u8 *key, int key_len, int key_idx)
+		       const u8 *key, int key_len, int key_idx,
+		       const u8 *sae_data, int sae_data_len)
 {
 	int err;
 
@@ -327,7 +342,8 @@ int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 	wdev_lock(dev->ieee80211_ptr);
 	err = __cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
 				   ssid, ssid_len, ie, ie_len,
-				   key, key_len, key_idx);
+				   key, key_len, key_idx,
+				   sae_data, sae_data_len);
 	wdev_unlock(dev->ieee80211_ptr);
 	mutex_unlock(&rdev->devlist_mtx);
 
@@ -410,7 +426,7 @@ int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 	if (err)
 		goto out;
 
-	err = rdev->ops->assoc(&rdev->wiphy, dev, &req);
+	err = rdev_assoc(rdev, dev, &req);
 
 out:
 	if (err) {
@@ -466,7 +482,7 @@ int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
 	    !ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
 		return 0;
 
-	return rdev->ops->deauth(&rdev->wiphy, dev, &req);
+	return rdev_deauth(rdev, dev, &req);
 }
 
 int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
@@ -511,7 +527,7 @@ static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
 	else
 		return -ENOTCONN;
 
-	return rdev->ops->disassoc(&rdev->wiphy, dev, &req);
+	return rdev_disassoc(rdev, dev, &req);
 }
 
 int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
@@ -552,7 +568,7 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 
 	memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
 	req.bssid = bssid;
-	rdev->ops->deauth(&rdev->wiphy, dev, &req);
+	rdev_deauth(rdev, dev, &req);
 
 	if (wdev->current_bss) {
 		cfg80211_unhold_bss(wdev->current_bss);
@@ -563,27 +579,25 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 
 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
 			       struct ieee80211_channel *chan,
-			       enum nl80211_channel_type channel_type,
 			       unsigned int duration, gfp_t gfp)
 {
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
-	nl80211_send_remain_on_channel(rdev, wdev, cookie, chan, channel_type,
-				       duration, gfp);
+	trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
+	nl80211_send_remain_on_channel(rdev, wdev, cookie, chan, duration, gfp);
 }
 EXPORT_SYMBOL(cfg80211_ready_on_channel);
 
 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
 					struct ieee80211_channel *chan,
-					enum nl80211_channel_type channel_type,
 					gfp_t gfp)
 {
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
-	nl80211_send_remain_on_channel_cancel(rdev, wdev, cookie, chan,
-					      channel_type, gfp);
+	trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
+	nl80211_send_remain_on_channel_cancel(rdev, wdev, cookie, chan, gfp);
 }
 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
 
@@ -593,6 +607,7 @@ void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
 	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_new_sta(dev, mac_addr, sinfo);
 	nl80211_send_sta_event(rdev, dev, mac_addr, sinfo, gfp);
 }
 EXPORT_SYMBOL(cfg80211_new_sta);
@@ -602,6 +617,7 @@ void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
 	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_del_sta(dev, mac_addr);
 	nl80211_send_sta_del_event(rdev, dev, mac_addr, gfp);
 }
 EXPORT_SYMBOL(cfg80211_del_sta);
@@ -682,7 +698,7 @@ int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid,
 	list_add(&nreg->list, &wdev->mgmt_registrations);
 
 	if (rdev->ops->mgmt_frame_register)
-		rdev->ops->mgmt_frame_register(wiphy, wdev, frame_type, true);
+		rdev_mgmt_frame_register(rdev, wdev, frame_type, true);
 
  out:
 	spin_unlock_bh(&wdev->mgmt_registrations_lock);
@@ -705,8 +721,8 @@ void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlportid)
 		if (rdev->ops->mgmt_frame_register) {
 			u16 frame_type = le16_to_cpu(reg->frame_type);
 
-			rdev->ops->mgmt_frame_register(wiphy, wdev,
-						       frame_type, false);
+			rdev_mgmt_frame_register(rdev, wdev,
+						 frame_type, false);
 		}
 
 		list_del(&reg->list);
@@ -736,10 +752,8 @@ void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev)
 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 			  struct wireless_dev *wdev,
 			  struct ieee80211_channel *chan, bool offchan,
-			  enum nl80211_channel_type channel_type,
-			  bool channel_type_valid, unsigned int wait,
-			  const u8 *buf, size_t len, bool no_cck,
-			  bool dont_wait_for_ack, u64 *cookie)
+			  unsigned int wait, const u8 *buf, size_t len,
+			  bool no_cck, bool dont_wait_for_ack, u64 *cookie)
 {
 	const struct ieee80211_mgmt *mgmt;
 	u16 stype;
@@ -832,10 +846,9 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 		return -EINVAL;
 
 	/* Transmit the Action frame as requested by user space */
-	return rdev->ops->mgmt_tx(&rdev->wiphy, wdev, chan, offchan,
-				  channel_type, channel_type_valid,
-				  wait, buf, len, no_cck, dont_wait_for_ack,
-				  cookie);
+	return rdev_mgmt_tx(rdev, wdev, chan, offchan,
+			    wait, buf, len, no_cck, dont_wait_for_ack,
+			    cookie);
 }
 
 bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_mbm,
@@ -854,10 +867,13 @@ bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_mbm,
 		cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE);
 	u16 stype;
 
+	trace_cfg80211_rx_mgmt(wdev, freq, sig_mbm);
 	stype = (le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE) >> 4;
 
-	if (!(stypes->rx & BIT(stype)))
+	if (!(stypes->rx & BIT(stype))) {
+		trace_cfg80211_return_bool(false);
 		return false;
+	}
 
 	data = buf + ieee80211_hdrlen(mgmt->frame_control);
 	data_len = len - ieee80211_hdrlen(mgmt->frame_control);
@@ -888,6 +904,7 @@ bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_mbm,
 
 	spin_unlock_bh(&wdev->mgmt_registrations_lock);
 
+	trace_cfg80211_return_bool(result);
 	return result;
 }
 EXPORT_SYMBOL(cfg80211_rx_mgmt);
@@ -898,6 +915,8 @@ void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
+
 	/* Indicate TX status of the Action frame to user space */
 	nl80211_send_mgmt_tx_status(rdev, wdev, cookie, buf, len, ack, gfp);
 }
@@ -911,6 +930,8 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev,
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
+
 	/* Indicate roaming trigger event to user space */
 	nl80211_send_cqm_rssi_notify(rdev, dev, rssi_event, gfp);
 }
@@ -923,6 +944,8 @@ void cfg80211_cqm_pktloss_notify(struct net_device *dev,
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
+
 	/* Indicate roaming trigger event to user space */
 	nl80211_send_cqm_pktloss_notify(rdev, dev, peer, num_packets, gfp);
 }
@@ -948,6 +971,7 @@ void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_gtk_rekey_notify(dev, bssid);
 	nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
 }
 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
@@ -959,17 +983,19 @@ void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
 	nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
 }
 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
 
-void cfg80211_ch_switch_notify(struct net_device *dev, int freq,
-			       enum nl80211_channel_type type)
+void cfg80211_ch_switch_notify(struct net_device *dev,
+			       struct cfg80211_chan_def *chandef)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-	struct ieee80211_channel *chan;
+
+	trace_cfg80211_ch_switch_notify(dev, chandef);
 
 	wdev_lock(wdev);
 
@@ -977,12 +1003,8 @@ void cfg80211_ch_switch_notify(struct net_device *dev, int freq,
 		    wdev->iftype != NL80211_IFTYPE_P2P_GO))
 		goto out;
 
-	chan = rdev_freq_to_chan(rdev, freq, type);
-	if (WARN_ON(!chan))
-		goto out;
-
-	wdev->channel = chan;
-	nl80211_ch_switch_notify(rdev, dev, freq, type, GFP_KERNEL);
+	wdev->channel = chandef->chan;
+	nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
 out:
 	wdev_unlock(wdev);
 	return;
@@ -993,12 +1015,18 @@ bool cfg80211_rx_spurious_frame(struct net_device *dev,
 				const u8 *addr, gfp_t gfp)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	bool ret;
+
+	trace_cfg80211_rx_spurious_frame(dev, addr);
 
 	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
-		    wdev->iftype != NL80211_IFTYPE_P2P_GO))
+		    wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
+		trace_cfg80211_return_bool(false);
 		return false;
-
-	return nl80211_unexpected_frame(dev, addr, gfp);
+	}
+	ret = nl80211_unexpected_frame(dev, addr, gfp);
+	trace_cfg80211_return_bool(ret);
+	return ret;
 }
 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
 
@@ -1006,12 +1034,18 @@ bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
 					const u8 *addr, gfp_t gfp)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	bool ret;
+
+	trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
 
 	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
 		    wdev->iftype != NL80211_IFTYPE_P2P_GO &&
-		    wdev->iftype != NL80211_IFTYPE_AP_VLAN))
+		    wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
+		trace_cfg80211_return_bool(false);
 		return false;
-
-	return nl80211_unexpected_4addr_frame(dev, addr, gfp);
+	}
+	ret = nl80211_unexpected_4addr_frame(dev, addr, gfp);
+	trace_cfg80211_return_bool(ret);
+	return ret;
 }
 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 0418a6d..f45706a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -22,8 +22,8 @@
 #include "core.h"
 #include "nl80211.h"
 #include "reg.h"
+#include "rdev-ops.h"
 
-static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
 				   struct genl_info *info,
 				   struct cfg80211_crypto_settings *settings,
@@ -223,8 +223,13 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
 	[NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
 				      .len = 20-1 },
 	[NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
+
 	[NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
 	[NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
+	[NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
+	[NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
+	[NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
+
 	[NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
 	[NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
 	[NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
@@ -355,6 +360,11 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
 	[NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
 	[NL80211_ATTR_WDEV] = { .type = NLA_U64 },
 	[NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
+	[NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
+	[NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
+	[NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
+	[NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
+	[NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
 };
 
 /* policy for the key attributes */
@@ -690,7 +700,7 @@ static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
 
 static struct cfg80211_cached_keys *
 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
-		       struct nlattr *keys)
+		       struct nlattr *keys, bool *no_ht)
 {
 	struct key_parse parse;
 	struct nlattr *key;
@@ -733,6 +743,12 @@ nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
 		result->params[parse.idx].key_len = parse.p.key_len;
 		result->params[parse.idx].key = result->data[parse.idx];
 		memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
+
+		if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
+		    parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
+			if (no_ht)
+				*no_ht = true;
+		}
 	}
 
 	return result;
@@ -943,7 +959,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flag
 	     dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
 		u32 tx_ant = 0, rx_ant = 0;
 		int res;
-		res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
+		res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
 		if (!res) {
 			if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
 					tx_ant) ||
@@ -1101,6 +1117,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flag
 			goto nla_put_failure;
 	}
 	CMD(start_p2p_device, START_P2P_DEVICE);
+	CMD(set_mcast_rate, SET_MCAST_RATE);
 
 #ifdef CONFIG_NL80211_TESTMODE
 	CMD(testmode_cmd, TESTMODE);
@@ -1350,51 +1367,83 @@ static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
 		wdev->iftype == NL80211_IFTYPE_P2P_GO;
 }
 
-static bool nl80211_valid_channel_type(struct genl_info *info,
-				       enum nl80211_channel_type *channel_type)
+static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
+				 struct genl_info *info,
+				 struct cfg80211_chan_def *chandef)
 {
-	enum nl80211_channel_type tmp;
+	u32 control_freq;
 
-	if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
-		return false;
+	if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
+		return -EINVAL;
 
-	tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
-	if (tmp != NL80211_CHAN_NO_HT &&
-	    tmp != NL80211_CHAN_HT20 &&
-	    tmp != NL80211_CHAN_HT40PLUS &&
-	    tmp != NL80211_CHAN_HT40MINUS)
-		return false;
+	control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
 
-	if (channel_type)
-		*channel_type = tmp;
+	chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
+	chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
+	chandef->center_freq1 = control_freq;
+	chandef->center_freq2 = 0;
 
-	return true;
+	/* Primary channel not allowed */
+	if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
+		return -EINVAL;
+
+	if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
+		enum nl80211_channel_type chantype;
+
+		chantype = nla_get_u32(
+				info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
+
+		switch (chantype) {
+		case NL80211_CHAN_NO_HT:
+		case NL80211_CHAN_HT20:
+		case NL80211_CHAN_HT40PLUS:
+		case NL80211_CHAN_HT40MINUS:
+			cfg80211_chandef_create(chandef, chandef->chan,
+						chantype);
+			break;
+		default:
+			return -EINVAL;
+		}
+	} else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
+		chandef->width =
+			nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
+		if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
+			chandef->center_freq1 =
+				nla_get_u32(
+					info->attrs[NL80211_ATTR_CENTER_FREQ1]);
+		if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
+			chandef->center_freq2 =
+				nla_get_u32(
+					info->attrs[NL80211_ATTR_CENTER_FREQ2]);
+	}
+
+	if (!cfg80211_chandef_valid(chandef))
+		return -EINVAL;
+
+	if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
+				     IEEE80211_CHAN_DISABLED))
+		return -EINVAL;
+
+	return 0;
 }
 
 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
 				 struct wireless_dev *wdev,
 				 struct genl_info *info)
 {
-	struct ieee80211_channel *channel;
-	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
-	u32 freq;
+	struct cfg80211_chan_def chandef;
 	int result;
 	enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
 
 	if (wdev)
 		iftype = wdev->iftype;
 
-	if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
-		return -EINVAL;
-
 	if (!nl80211_can_set_dev_channel(wdev))
 		return -EOPNOTSUPP;
 
-	if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
-	    !nl80211_valid_channel_type(info, &channel_type))
-		return -EINVAL;
-
-	freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
+	result = nl80211_parse_chandef(rdev, info, &chandef);
+	if (result)
+		return result;
 
 	mutex_lock(&rdev->devlist_mtx);
 	switch (iftype) {
@@ -1404,22 +1453,18 @@ static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
 			result = -EBUSY;
 			break;
 		}
-		channel = rdev_freq_to_chan(rdev, freq, channel_type);
-		if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
-							      channel,
-							      channel_type)) {
+		if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
 			result = -EINVAL;
 			break;
 		}
-		wdev->preset_chan = channel;
-		wdev->preset_chantype = channel_type;
+		wdev->preset_chandef = chandef;
 		result = 0;
 		break;
 	case NL80211_IFTYPE_MESH_POINT:
-		result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
+		result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
 		break;
 	case NL80211_IFTYPE_MONITOR:
-		result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
+		result = cfg80211_set_monitor_channel(rdev, &chandef);
 		break;
 	default:
 		result = -EINVAL;
@@ -1457,7 +1502,7 @@ static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
 		return -EOPNOTSUPP;
 
 	bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
-	return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
+	return rdev_set_wds_peer(rdev, dev, bssid);
 }
 
 
@@ -1507,10 +1552,8 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 		result = 0;
 
 		mutex_lock(&rdev->mtx);
-	} else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
+	} else
 		wdev = netdev->ieee80211_ptr;
-	else
-		wdev = NULL;
 
 	/*
 	 * end workaround code, by now the rdev is available
@@ -1562,24 +1605,29 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 			if (result)
 				goto bad_res;
 
-			result = rdev->ops->set_txq_params(&rdev->wiphy,
-							   netdev,
-							   &txq_params);
+			result = rdev_set_txq_params(rdev, netdev,
+						     &txq_params);
 			if (result)
 				goto bad_res;
 		}
 	}
 
 	if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
-		result = __nl80211_set_channel(rdev, wdev, info);
+		result = __nl80211_set_channel(rdev,
+				nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
+				info);
 		if (result)
 			goto bad_res;
 	}
 
 	if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
+		struct wireless_dev *txp_wdev = wdev;
 		enum nl80211_tx_power_setting type;
 		int idx, mbm = 0;
 
+		if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
+			txp_wdev = NULL;
+
 		if (!rdev->ops->set_tx_power) {
 			result = -EOPNOTSUPP;
 			goto bad_res;
@@ -1599,7 +1647,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 			mbm = nla_get_u32(info->attrs[idx]);
 		}
 
-		result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
+		result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
 		if (result)
 			goto bad_res;
 	}
@@ -1628,7 +1676,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 		tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
 		rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
 
-		result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
+		result = rdev_set_antenna(rdev, tx_ant, rx_ant);
 		if (result)
 			goto bad_res;
 	}
@@ -1713,7 +1761,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 		if (changed & WIPHY_PARAM_COVERAGE_CLASS)
 			rdev->wiphy.coverage_class = coverage_class;
 
-		result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
+		result = rdev_set_wiphy_params(rdev, changed);
 		if (result) {
 			rdev->wiphy.retry_short = old_retry_short;
 			rdev->wiphy.retry_long = old_retry_long;
@@ -1736,6 +1784,35 @@ static inline u64 wdev_id(struct wireless_dev *wdev)
 	       ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
 }
 
+static int nl80211_send_chandef(struct sk_buff *msg,
+				 struct cfg80211_chan_def *chandef)
+{
+	WARN_ON(!cfg80211_chandef_valid(chandef));
+
+	if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
+			chandef->chan->center_freq))
+		return -ENOBUFS;
+	switch (chandef->width) {
+	case NL80211_CHAN_WIDTH_20_NOHT:
+	case NL80211_CHAN_WIDTH_20:
+	case NL80211_CHAN_WIDTH_40:
+		if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+				cfg80211_get_chandef_type(chandef)))
+			return -ENOBUFS;
+		break;
+	default:
+		break;
+	}
+	if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
+		return -ENOBUFS;
+	if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
+		return -ENOBUFS;
+	if (chandef->center_freq2 &&
+	    nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
+		return -ENOBUFS;
+	return 0;
+}
+
 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
 			      struct cfg80211_registered_device *rdev,
 			      struct wireless_dev *wdev)
@@ -1762,16 +1839,18 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flag
 		goto nla_put_failure;
 
 	if (rdev->ops->get_channel) {
-		struct ieee80211_channel *chan;
-		enum nl80211_channel_type channel_type;
-
-		chan = rdev->ops->get_channel(&rdev->wiphy, wdev,
-					      &channel_type);
-		if (chan &&
-		    (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
-				 chan->center_freq) ||
-		     nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
-				 channel_type)))
+		int ret;
+		struct cfg80211_chan_def chandef;
+
+		ret = rdev_get_channel(rdev, wdev, &chandef);
+		if (ret == 0) {
+			if (nl80211_send_chandef(msg, &chandef))
+				goto nla_put_failure;
+		}
+	}
+
+	if (wdev->ssid_len) {
+		if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
 			goto nla_put_failure;
 	}
 
@@ -2014,9 +2093,9 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
 	err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
 				  info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
 				  &flags);
-	wdev = rdev->ops->add_virtual_intf(&rdev->wiphy,
-		nla_data(info->attrs[NL80211_ATTR_IFNAME]),
-		type, err ? NULL : &flags, &params);
+	wdev = rdev_add_virtual_intf(rdev,
+				nla_data(info->attrs[NL80211_ATTR_IFNAME]),
+				type, err ? NULL : &flags, &params);
 	if (IS_ERR(wdev)) {
 		nlmsg_free(msg);
 		return PTR_ERR(wdev);
@@ -2083,7 +2162,7 @@ static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
 	if (!wdev->netdev)
 		info->user_ptr[1] = NULL;
 
-	return rdev->ops->del_virtual_intf(&rdev->wiphy, wdev);
+	return rdev_del_virtual_intf(rdev, wdev);
 }
 
 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
@@ -2100,7 +2179,7 @@ static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
 
 	noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
 
-	return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
+	return rdev_set_noack_map(rdev, dev, noack_map);
 }
 
 struct get_key_cookie {
@@ -2210,8 +2289,8 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
 	    !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
 		return -ENOENT;
 
-	err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
-				 mac_addr, &cookie, get_key_callback);
+	err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
+			   get_key_callback);
 
 	if (err)
 		goto free_msg;
@@ -2259,7 +2338,7 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
 		if (err)
 			goto out;
 
-		err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
+		err = rdev_set_default_key(rdev, dev, key.idx,
 						 key.def_uni, key.def_multi);
 
 		if (err)
@@ -2283,8 +2362,7 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
 		if (err)
 			goto out;
 
-		err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
-						      dev, key.idx);
+		err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
 		if (err)
 			goto out;
 
@@ -2340,9 +2418,9 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
 	wdev_lock(dev->ieee80211_ptr);
 	err = nl80211_key_allowed(dev->ieee80211_ptr);
 	if (!err)
-		err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
-					 key.type == NL80211_KEYTYPE_PAIRWISE,
-					 mac_addr, &key.p);
+		err = rdev_add_key(rdev, dev, key.idx,
+				   key.type == NL80211_KEYTYPE_PAIRWISE,
+				    mac_addr, &key.p);
 	wdev_unlock(dev->ieee80211_ptr);
 
 	return err;
@@ -2386,9 +2464,9 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
 		err = -ENOENT;
 
 	if (!err)
-		err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
-					 key.type == NL80211_KEYTYPE_PAIRWISE,
-					 mac_addr);
+		err = rdev_del_key(rdev, dev, key.idx,
+				   key.type == NL80211_KEYTYPE_PAIRWISE,
+				   mac_addr);
 
 #ifdef CONFIG_CFG80211_WEXT
 	if (!err) {
@@ -2476,11 +2554,10 @@ static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
 		    wdev->iftype != NL80211_IFTYPE_P2P_GO)
 			continue;
 
-		if (!wdev->preset_chan)
+		if (!wdev->preset_chandef.chan)
 			continue;
 
-		params->channel = wdev->preset_chan;
-		params->channel_type = wdev->preset_chantype;
+		params->chandef = wdev->preset_chandef;
 		ret = true;
 		break;
 	}
@@ -2490,6 +2567,30 @@ static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
 	return ret;
 }
 
+static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
+				    enum nl80211_auth_type auth_type,
+				    enum nl80211_commands cmd)
+{
+	if (auth_type > NL80211_AUTHTYPE_MAX)
+		return false;
+
+	switch (cmd) {
+	case NL80211_CMD_AUTHENTICATE:
+		if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
+		    auth_type == NL80211_AUTHTYPE_SAE)
+			return false;
+		return true;
+	case NL80211_CMD_CONNECT:
+	case NL80211_CMD_START_AP:
+		/* SAE not supported yet */
+		if (auth_type == NL80211_AUTHTYPE_SAE)
+			return false;
+		return true;
+	default:
+		return false;
+	}
+}
+
 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
@@ -2559,7 +2660,8 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 	if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
 		params.auth_type = nla_get_u32(
 			info->attrs[NL80211_ATTR_AUTH_TYPE]);
-		if (!nl80211_valid_auth_type(params.auth_type))
+		if (!nl80211_valid_auth_type(rdev, params.auth_type,
+					     NL80211_CMD_START_AP))
 			return -EINVAL;
 	} else
 		params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
@@ -2576,43 +2678,59 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 			info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
 	}
 
-	if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
-		enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
-
-		if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
-		    !nl80211_valid_channel_type(info, &channel_type))
+	if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
+		if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
 			return -EINVAL;
+		params.p2p_ctwindow =
+			nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
+		if (params.p2p_ctwindow > 127)
+			return -EINVAL;
+		if (params.p2p_ctwindow != 0 &&
+		    !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
+			return -EINVAL;
+	}
+
+	if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
+		u8 tmp;
 
-		params.channel = rdev_freq_to_chan(rdev,
-			nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
-			channel_type);
-		if (!params.channel)
+		if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
 			return -EINVAL;
-		params.channel_type = channel_type;
-	} else if (wdev->preset_chan) {
-		params.channel = wdev->preset_chan;
-		params.channel_type = wdev->preset_chantype;
+		tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
+		if (tmp > 1)
+			return -EINVAL;
+		params.p2p_opp_ps = tmp;
+		if (params.p2p_opp_ps != 0 &&
+		    !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
+			return -EINVAL;
+	}
+
+	if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
+		err = nl80211_parse_chandef(rdev, info, &params.chandef);
+		if (err)
+			return err;
+	} else if (wdev->preset_chandef.chan) {
+		params.chandef = wdev->preset_chandef;
 	} else if (!nl80211_get_ap_channel(rdev, &params))
 		return -EINVAL;
 
-	if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
-					  params.channel_type))
+	if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
 		return -EINVAL;
 
 	mutex_lock(&rdev->devlist_mtx);
-	err = cfg80211_can_use_chan(rdev, wdev, params.channel,
+	err = cfg80211_can_use_chan(rdev, wdev, params.chandef.chan,
 				    CHAN_MODE_SHARED);
 	mutex_unlock(&rdev->devlist_mtx);
 
 	if (err)
 		return err;
 
-	err = rdev->ops->start_ap(&rdev->wiphy, dev, &params);
+	err = rdev_start_ap(rdev, dev, &params);
 	if (!err) {
-		wdev->preset_chan = params.channel;
-		wdev->preset_chantype = params.channel_type;
+		wdev->preset_chandef = params.chandef;
 		wdev->beacon_interval = params.beacon_interval;
-		wdev->channel = params.channel;
+		wdev->channel = params.chandef.chan;
+		wdev->ssid_len = params.ssid_len;
+		memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
 	}
 	return err;
 }
@@ -2639,7 +2757,7 @@ static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		return err;
 
-	return rdev->ops->change_beacon(&rdev->wiphy, dev, &params);
+	return rdev_change_beacon(rdev, dev, &params);
 }
 
 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
@@ -2744,29 +2862,52 @@ static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
 
 	rate = nla_nest_start(msg, attr);
 	if (!rate)
-		goto nla_put_failure;
+		return false;
 
 	/* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
 	bitrate = cfg80211_calculate_bitrate(info);
 	/* report 16-bit bitrate only if we can */
 	bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
-	if ((bitrate > 0 &&
-	     nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) ||
-	    (bitrate_compat > 0 &&
-	     nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) ||
-	    ((info->flags & RATE_INFO_FLAGS_MCS) &&
-	     nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
-	    ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
-	     nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
-	    ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
-	     nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
-		goto nla_put_failure;
+	if (bitrate > 0 &&
+	    nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
+		return false;
+	if (bitrate_compat > 0 &&
+	    nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
+		return false;
+
+	if (info->flags & RATE_INFO_FLAGS_MCS) {
+		if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
+			return false;
+		if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
+		    nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
+			return false;
+		if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
+		    nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
+			return false;
+	} else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
+		if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
+			return false;
+		if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
+			return false;
+		if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
+		    nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
+			return false;
+		if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
+		    nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
+			return false;
+		if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
+		    nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
+			return false;
+		if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
+		    nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
+			return false;
+		if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
+		    nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
+			return false;
+	}
 
 	nla_nest_end(msg, rate);
 	return true;
-
-nla_put_failure:
-	return false;
 }
 
 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
@@ -2923,8 +3064,8 @@ static int nl80211_dump_station(struct sk_buff *skb,
 
 	while (1) {
 		memset(&sinfo, 0, sizeof(sinfo));
-		err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
-					     mac_addr, &sinfo);
+		err = rdev_dump_station(dev, netdev, sta_idx,
+					mac_addr, &sinfo);
 		if (err == -ENOENT)
 			break;
 		if (err)
@@ -2969,7 +3110,7 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
 	if (!rdev->ops->get_station)
 		return -EOPNOTSUPP;
 
-	err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
+	err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
 	if (err)
 		return err;
 
@@ -3146,7 +3287,7 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
 
 	/* be aware of params.vlan when changing code here */
 
-	err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
+	err = rdev_change_station(rdev, dev, mac_addr, &params);
 
 	if (params.vlan)
 		dev_put(params.vlan);
@@ -3198,6 +3339,10 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 		params.ht_capa =
 			nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
 
+	if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
+		params.vht_capa =
+			nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
+
 	if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
 		params.plink_action =
 		    nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
@@ -3275,7 +3420,7 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 
 	/* be aware of params.vlan when changing code here */
 
-	err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
+	err = rdev_add_station(rdev, dev, mac_addr, &params);
 
 	if (params.vlan)
 		dev_put(params.vlan);
@@ -3300,7 +3445,7 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
 	if (!rdev->ops->del_station)
 		return -EOPNOTSUPP;
 
-	return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
+	return rdev_del_station(rdev, dev, mac_addr);
 }
 
 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
@@ -3382,8 +3527,8 @@ static int nl80211_dump_mpath(struct sk_buff *skb,
 	}
 
 	while (1) {
-		err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
-					   dst, next_hop, &pinfo);
+		err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
+				      &pinfo);
 		if (err == -ENOENT)
 			break;
 		if (err)
@@ -3430,7 +3575,7 @@ static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
 	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
 		return -EOPNOTSUPP;
 
-	err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
+	err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
 	if (err)
 		return err;
 
@@ -3469,7 +3614,7 @@ static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
 	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
 		return -EOPNOTSUPP;
 
-	return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
+	return rdev_change_mpath(rdev, dev, dst, next_hop);
 }
 
 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
@@ -3494,7 +3639,7 @@ static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
 	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
 		return -EOPNOTSUPP;
 
-	return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
+	return rdev_add_mpath(rdev, dev, dst, next_hop);
 }
 
 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
@@ -3509,7 +3654,7 @@ static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
 	if (!rdev->ops->del_mpath)
 		return -EOPNOTSUPP;
 
-	return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
+	return rdev_del_mpath(rdev, dev, dst);
 }
 
 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
@@ -3525,6 +3670,8 @@ static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
 	params.use_short_slot_time = -1;
 	params.ap_isolate = -1;
 	params.ht_opmode = -1;
+	params.p2p_ctwindow = -1;
+	params.p2p_opp_ps = -1;
 
 	if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
 		params.use_cts_prot =
@@ -3547,6 +3694,32 @@ static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
 		params.ht_opmode =
 			nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
 
+	if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
+		if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+			return -EINVAL;
+		params.p2p_ctwindow =
+			nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
+		if (params.p2p_ctwindow < 0)
+			return -EINVAL;
+		if (params.p2p_ctwindow != 0 &&
+		    !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
+			return -EINVAL;
+	}
+
+	if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
+		u8 tmp;
+
+		if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+			return -EINVAL;
+		tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
+		if (tmp > 1)
+			return -EINVAL;
+		params.p2p_opp_ps = tmp;
+		if (params.p2p_opp_ps &&
+		    !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
+			return -EINVAL;
+	}
+
 	if (!rdev->ops->change_bss)
 		return -EOPNOTSUPP;
 
@@ -3554,7 +3727,7 @@ static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
 	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
 		return -EOPNOTSUPP;
 
-	return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
+	return rdev_change_bss(rdev, dev, &params);
 }
 
 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
@@ -3668,8 +3841,7 @@ static int nl80211_get_mesh_config(struct sk_buff *skb,
 	if (!wdev->mesh_id_len)
 		memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
 	else
-		err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
-						 &cur_params);
+		err = rdev_get_mesh_config(rdev, dev, &cur_params);
 	wdev_unlock(wdev);
 
 	if (err)
@@ -3971,8 +4143,7 @@ static int nl80211_update_mesh_config(struct sk_buff *skb,
 		err = -ENOLINK;
 
 	if (!err)
-		err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
-						    mask, &cfg);
+		err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
 
 	wdev_unlock(wdev);
 
@@ -4337,14 +4508,27 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 		}
 	}
 
+	if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
+		request->flags = nla_get_u32(
+			info->attrs[NL80211_ATTR_SCAN_FLAGS]);
+		if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
+		     !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
+		    ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
+		     !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
+			err = -EOPNOTSUPP;
+			goto out_free;
+		}
+	}
+
 	request->no_cck =
 		nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
 
 	request->wdev = wdev;
 	request->wiphy = &rdev->wiphy;
+	request->scan_start = jiffies;
 
 	rdev->scan_req = request;
-	err = rdev->ops->scan(&rdev->wiphy, request);
+	err = rdev_scan(rdev, request);
 
 	if (!err) {
 		nl80211_send_scan_start(rdev, wdev);
@@ -4568,11 +4752,24 @@ static int nl80211_start_sched_scan(struct sk_buff *skb,
 		       request->ie_len);
 	}
 
+	if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
+		request->flags = nla_get_u32(
+			info->attrs[NL80211_ATTR_SCAN_FLAGS]);
+		if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
+		     !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
+		    ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
+		     !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
+			err = -EOPNOTSUPP;
+			goto out_free;
+		}
+	}
+
 	request->dev = dev;
 	request->wiphy = &rdev->wiphy;
 	request->interval = interval;
+	request->scan_start = jiffies;
 
-	err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
+	err = rdev_sched_scan_start(rdev, dev, request);
 	if (!err) {
 		rdev->sched_scan_req = request;
 		nl80211_send_sched_scan(rdev, dev,
@@ -4611,6 +4808,7 @@ static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
 			    struct cfg80211_internal_bss *intbss)
 {
 	struct cfg80211_bss *res = &intbss->pub;
+	const struct cfg80211_bss_ies *ies;
 	void *hdr;
 	struct nlattr *bss;
 
@@ -4631,16 +4829,24 @@ static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
 	if (!bss)
 		goto nla_put_failure;
 	if ((!is_zero_ether_addr(res->bssid) &&
-	     nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
-	    (res->information_elements && res->len_information_elements &&
-	     nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
-		     res->len_information_elements,
-		     res->information_elements)) ||
-	    (res->beacon_ies && res->len_beacon_ies &&
-	     res->beacon_ies != res->information_elements &&
-	     nla_put(msg, NL80211_BSS_BEACON_IES,
-		     res->len_beacon_ies, res->beacon_ies)))
+	     nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
+		goto nla_put_failure;
+
+	rcu_read_lock();
+	ies = rcu_dereference(res->ies);
+	if (ies && ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
+				       ies->len, ies->data)) {
+		rcu_read_unlock();
+		goto nla_put_failure;
+	}
+	ies = rcu_dereference(res->beacon_ies);
+	if (ies && ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
+				       ies->len, ies->data)) {
+		rcu_read_unlock();
 		goto nla_put_failure;
+	}
+	rcu_read_unlock();
+
 	if (res->tsf &&
 	    nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
 		goto nla_put_failure;
@@ -4815,8 +5021,7 @@ static int nl80211_dump_survey(struct sk_buff *skb,
 	while (1) {
 		struct ieee80211_channel *chan;
 
-		res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
-					    &survey);
+		res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
 		if (res == -ENOENT)
 			break;
 		if (res)
@@ -4852,11 +5057,6 @@ static int nl80211_dump_survey(struct sk_buff *skb,
 	return res;
 }
 
-static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
-{
-	return auth_type <= NL80211_AUTHTYPE_MAX;
-}
-
 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
 {
 	return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
@@ -4868,8 +5068,8 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
 	struct net_device *dev = info->user_ptr[1];
 	struct ieee80211_channel *chan;
-	const u8 *bssid, *ssid, *ie = NULL;
-	int err, ssid_len, ie_len = 0;
+	const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
+	int err, ssid_len, ie_len = 0, sae_data_len = 0;
 	enum nl80211_auth_type auth_type;
 	struct key_parse key;
 	bool local_state_change;
@@ -4945,9 +5145,23 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
-	if (!nl80211_valid_auth_type(auth_type))
+	if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
+		return -EINVAL;
+
+	if (auth_type == NL80211_AUTHTYPE_SAE &&
+	    !info->attrs[NL80211_ATTR_SAE_DATA])
 		return -EINVAL;
 
+	if (info->attrs[NL80211_ATTR_SAE_DATA]) {
+		if (auth_type != NL80211_AUTHTYPE_SAE)
+			return -EINVAL;
+		sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
+		sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
+		/* need to include at least Auth Transaction and Status Code */
+		if (sae_data_len < 4)
+			return -EINVAL;
+	}
+
 	local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
 
 	/*
@@ -4959,7 +5173,8 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
 
 	return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
 				  ssid, ssid_len, ie, ie_len,
-				  key.p.key, key.p.key_len, key.idx);
+				  key.p.key, key.p.key_len, key.idx,
+				  sae_data, sae_data_len);
 }
 
 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
@@ -5250,8 +5465,7 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
 	if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
 		return -EINVAL;
 
-	if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
-	    !info->attrs[NL80211_ATTR_SSID] ||
+	if (!info->attrs[NL80211_ATTR_SSID] ||
 	    !nla_len(info->attrs[NL80211_ATTR_SSID]))
 		return -EINVAL;
 
@@ -5286,34 +5500,17 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
 		ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
 	}
 
-	if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
-		enum nl80211_channel_type channel_type;
-
-		if (!nl80211_valid_channel_type(info, &channel_type))
-			return -EINVAL;
-
-		if (channel_type != NL80211_CHAN_NO_HT &&
-		    !(wiphy->features & NL80211_FEATURE_HT_IBSS))
-			return -EINVAL;
-
-		ibss.channel_type = channel_type;
-	} else {
-		ibss.channel_type = NL80211_CHAN_NO_HT;
-	}
+	err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
+	if (err)
+		return err;
 
-	ibss.channel = rdev_freq_to_chan(rdev,
-		nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
-		ibss.channel_type);
-	if (!ibss.channel ||
-	    ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
-	    ibss.channel->flags & IEEE80211_CHAN_DISABLED)
+	if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
 		return -EINVAL;
 
-	/* Both channels should be able to initiate communication */
-	if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
-	     ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
-	    !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
-					  ibss.channel_type))
+	if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
+		return -EINVAL;
+	if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
+	    !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
 		return -EINVAL;
 
 	ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
@@ -5325,7 +5522,7 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
 		int n_rates =
 			nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
 		struct ieee80211_supported_band *sband =
-			wiphy->bands[ibss.channel->band];
+			wiphy->bands[ibss.chandef.chan->band];
 
 		err = ieee80211_get_ratemask(sband, rates, n_rates,
 					     &ibss.basic_rates);
@@ -5339,10 +5536,19 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
 		return -EINVAL;
 
 	if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
+		bool no_ht = false;
+
 		connkeys = nl80211_parse_connkeys(rdev,
-					info->attrs[NL80211_ATTR_KEYS]);
+					  info->attrs[NL80211_ATTR_KEYS],
+					  &no_ht);
 		if (IS_ERR(connkeys))
 			return PTR_ERR(connkeys);
+
+		if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
+		    no_ht) {
+			kfree(connkeys);
+			return -EINVAL;
+		}
 	}
 
 	ibss.control_port =
@@ -5368,6 +5574,36 @@ static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
 	return cfg80211_leave_ibss(rdev, dev, false);
 }
 
+static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *rdev = info->user_ptr[0];
+	struct net_device *dev = info->user_ptr[1];
+	int mcast_rate[IEEE80211_NUM_BANDS];
+	u32 nla_rate;
+	int err;
+
+	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
+	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
+		return -EOPNOTSUPP;
+
+	if (!rdev->ops->set_mcast_rate)
+		return -EOPNOTSUPP;
+
+	memset(mcast_rate, 0, sizeof(mcast_rate));
+
+	if (!info->attrs[NL80211_ATTR_MCAST_RATE])
+		return -EINVAL;
+
+	nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
+	if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
+		return -EINVAL;
+
+	err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
+
+	return err;
+}
+
+
 #ifdef CONFIG_NL80211_TESTMODE
 static struct genl_multicast_group nl80211_testmode_mcgrp = {
 	.name = "testmode",
@@ -5384,7 +5620,7 @@ static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
 	err = -EOPNOTSUPP;
 	if (rdev->ops->testmode_cmd) {
 		rdev->testmode_info = info;
-		err = rdev->ops->testmode_cmd(&rdev->wiphy,
+		err = rdev_testmode_cmd(rdev,
 				nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
 				nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
 		rdev->testmode_info = NULL;
@@ -5466,8 +5702,7 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
 			genlmsg_cancel(skb, hdr);
 			break;
 		}
-		err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
-					       data, data_len);
+		err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
 		nla_nest_end(skb, tmdata);
 
 		if (err == -ENOBUFS || err == -ENOENT) {
@@ -5596,7 +5831,8 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
 	if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
 		connect.auth_type =
 			nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
-		if (!nl80211_valid_auth_type(connect.auth_type))
+		if (!nl80211_valid_auth_type(rdev, connect.auth_type,
+					     NL80211_CMD_CONNECT))
 			return -EINVAL;
 	} else
 		connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
@@ -5642,7 +5878,7 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
 
 	if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
 		connkeys = nl80211_parse_connkeys(rdev,
-					info->attrs[NL80211_ATTR_KEYS]);
+					  info->attrs[NL80211_ATTR_KEYS], NULL);
 		if (IS_ERR(connkeys))
 			return PTR_ERR(connkeys);
 	}
@@ -5771,7 +6007,7 @@ static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
 	if (!rdev->ops->flush_pmksa)
 		return -EOPNOTSUPP;
 
-	return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
+	return rdev_flush_pmksa(rdev, dev);
 }
 
 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
@@ -5798,10 +6034,10 @@ static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
 	status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
 	dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
 
-	return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
-				    dialog_token, status_code,
-				    nla_data(info->attrs[NL80211_ATTR_IE]),
-				    nla_len(info->attrs[NL80211_ATTR_IE]));
+	return rdev_tdls_mgmt(rdev, dev, peer, action_code,
+			      dialog_token, status_code,
+			      nla_data(info->attrs[NL80211_ATTR_IE]),
+			      nla_len(info->attrs[NL80211_ATTR_IE]));
 }
 
 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
@@ -5822,7 +6058,7 @@ static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
 	operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
 	peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
 
-	return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
+	return rdev_tdls_oper(rdev, dev, peer, operation);
 }
 
 static int nl80211_remain_on_channel(struct sk_buff *skb,
@@ -5830,12 +6066,11 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
 	struct wireless_dev *wdev = info->user_ptr[1];
-	struct ieee80211_channel *chan;
+	struct cfg80211_chan_def chandef;
 	struct sk_buff *msg;
 	void *hdr;
 	u64 cookie;
-	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
-	u32 freq, duration;
+	u32 duration;
 	int err;
 
 	if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
@@ -5856,14 +6091,9 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
 	    duration > rdev->wiphy.max_remain_on_channel_duration)
 		return -EINVAL;
 
-	if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
-	    !nl80211_valid_channel_type(info, &channel_type))
-		return -EINVAL;
-
-	freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
-	chan = rdev_freq_to_chan(rdev, freq, channel_type);
-	if (chan == NULL)
-		return -EINVAL;
+	err = nl80211_parse_chandef(rdev, info, &chandef);
+	if (err)
+		return err;
 
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
@@ -5877,8 +6107,8 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
 		goto free_msg;
 	}
 
-	err = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan,
-					   channel_type, duration, &cookie);
+	err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
+				     duration, &cookie);
 
 	if (err)
 		goto free_msg;
@@ -5912,7 +6142,7 @@ static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
 
 	cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
 
-	return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, wdev, cookie);
+	return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
 }
 
 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
@@ -6055,7 +6285,7 @@ static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
 		}
 	}
 
-	return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
+	return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
 }
 
 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
@@ -6097,10 +6327,7 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
 	struct wireless_dev *wdev = info->user_ptr[1];
-	struct ieee80211_channel *chan;
-	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
-	bool channel_type_valid = false;
-	u32 freq;
+	struct cfg80211_chan_def chandef;
 	int err;
 	void *hdr = NULL;
 	u64 cookie;
@@ -6110,8 +6337,7 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 
 	dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
 
-	if (!info->attrs[NL80211_ATTR_FRAME] ||
-	    !info->attrs[NL80211_ATTR_WIPHY_FREQ])
+	if (!info->attrs[NL80211_ATTR_FRAME])
 		return -EINVAL;
 
 	if (!rdev->ops->mgmt_tx)
@@ -6146,12 +6372,6 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 
 	}
 
-	if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
-		if (!nl80211_valid_channel_type(info, &channel_type))
-			return -EINVAL;
-		channel_type_valid = true;
-	}
-
 	offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
 
 	if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
@@ -6159,10 +6379,9 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 
 	no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
 
-	freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
-	chan = rdev_freq_to_chan(rdev, freq, channel_type);
-	if (chan == NULL)
-		return -EINVAL;
+	err = nl80211_parse_chandef(rdev, info, &chandef);
+	if (err)
+		return err;
 
 	if (!dont_wait_for_ack) {
 		msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
@@ -6178,8 +6397,7 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 		}
 	}
 
-	err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type,
-				    channel_type_valid, wait,
+	err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
 				    nla_data(info->attrs[NL80211_ATTR_FRAME]),
 				    nla_len(info->attrs[NL80211_ATTR_FRAME]),
 				    no_cck, dont_wait_for_ack, &cookie);
@@ -6230,7 +6448,7 @@ static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *in
 
 	cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
 
-	return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, wdev, cookie);
+	return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
 }
 
 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
@@ -6260,8 +6478,7 @@ static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
 	if (state == wdev->ps)
 		return 0;
 
-	err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
-					wdev->ps_timeout);
+	err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
 	if (!err)
 		wdev->ps = state;
 	return err;
@@ -6322,14 +6539,13 @@ nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
 };
 
 static int nl80211_set_cqm_txe(struct genl_info *info,
-				u32 rate, u32 pkts, u32 intvl)
+			       u32 rate, u32 pkts, u32 intvl)
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
 	struct wireless_dev *wdev;
 	struct net_device *dev = info->user_ptr[1];
 
-	if ((rate < 0 || rate > 100) ||
-	    (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
+	if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
 		return -EINVAL;
 
 	wdev = dev->ieee80211_ptr;
@@ -6341,8 +6557,7 @@ static int nl80211_set_cqm_txe(struct genl_info *info,
 	    wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
 		return -EOPNOTSUPP;
 
-	return rdev->ops->set_cqm_txe_config(wdev->wiphy, dev,
-					     rate, pkts, intvl);
+	return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
 }
 
 static int nl80211_set_cqm_rssi(struct genl_info *info,
@@ -6364,8 +6579,7 @@ static int nl80211_set_cqm_rssi(struct genl_info *info,
 	    wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
 		return -EOPNOTSUPP;
 
-	return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
-					      threshold, hysteresis);
+	return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
 }
 
 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
@@ -6446,21 +6660,12 @@ static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
-		enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
-
-		if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
-		    !nl80211_valid_channel_type(info, &channel_type))
-			return -EINVAL;
-
-		setup.channel = rdev_freq_to_chan(rdev,
-			nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
-			channel_type);
-		if (!setup.channel)
-			return -EINVAL;
-		setup.channel_type = channel_type;
+		err = nl80211_parse_chandef(rdev, info, &setup.chandef);
+		if (err)
+			return err;
 	} else {
 		/* cfg80211_join_mesh() will sort it out */
-		setup.channel = NULL;
+		setup.chandef.chan = NULL;
 	}
 
 	return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
@@ -6690,7 +6895,7 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
 
  set_wakeup:
 	if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
-		rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
+		rdev_set_wakeup(rdev, rdev->wowlan);
 
 	return 0;
  error:
@@ -6746,7 +6951,7 @@ static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
 		goto out;
 	}
 
-	err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
+	err = rdev_set_rekey_data(rdev, dev, &rekey_data);
  out:
 	wdev_unlock(wdev);
 	return err;
@@ -6805,7 +7010,7 @@ static int nl80211_probe_client(struct sk_buff *skb,
 
 	addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
 
-	err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
+	err = rdev_probe_client(rdev, dev, addr, &cookie);
 	if (err)
 		goto free_msg;
 
@@ -6826,16 +7031,35 @@ static int nl80211_probe_client(struct sk_buff *skb,
 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
+	struct cfg80211_beacon_registration *reg, *nreg;
+	int rv;
 
 	if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
 		return -EOPNOTSUPP;
 
-	if (rdev->ap_beacons_nlportid)
-		return -EBUSY;
+	nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
+	if (!nreg)
+		return -ENOMEM;
+
+	/* First, check if already registered. */
+	spin_lock_bh(&rdev->beacon_registrations_lock);
+	list_for_each_entry(reg, &rdev->beacon_registrations, list) {
+		if (reg->nlportid == info->snd_portid) {
+			rv = -EALREADY;
+			goto out_err;
+		}
+	}
+	/* Add it to the list */
+	nreg->nlportid = info->snd_portid;
+	list_add(&nreg->list, &rdev->beacon_registrations);
 
-	rdev->ap_beacons_nlportid = info->snd_portid;
+	spin_unlock_bh(&rdev->beacon_registrations_lock);
 
 	return 0;
+out_err:
+	spin_unlock_bh(&rdev->beacon_registrations_lock);
+	kfree(nreg);
+	return rv;
 }
 
 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
@@ -6859,7 +7083,7 @@ static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		return err;
 
-	err = rdev->ops->start_p2p_device(&rdev->wiphy, wdev);
+	err = rdev_start_p2p_device(rdev, wdev);
 	if (err)
 		return err;
 
@@ -6885,7 +7109,7 @@ static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
 	if (!wdev->p2p_started)
 		return 0;
 
-	rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);
+	rdev_stop_p2p_device(rdev, wdev);
 	wdev->p2p_started = false;
 
 	mutex_lock(&rdev->devlist_mtx);
@@ -7552,6 +7776,14 @@ static struct genl_ops nl80211_ops[] = {
 		.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
 				  NL80211_FLAG_NEED_RTNL,
 	},
+	{
+		.cmd = NL80211_CMD_SET_MCAST_RATE,
+		.doit = nl80211_set_mcast_rate,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+		.internal_flags = NL80211_FLAG_NEED_NETDEV |
+				  NL80211_FLAG_NEED_RTNL,
+	},
 };
 
 static struct genl_multicast_group nl80211_mlme_mcgrp = {
@@ -7622,6 +7854,9 @@ static int nl80211_add_scan_req(struct sk_buff *msg,
 	    nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
 		goto nla_put_failure;
 
+	if (req->flags)
+		nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
+
 	return 0;
  nla_put_failure:
 	return -ENOBUFS;
@@ -8250,7 +8485,6 @@ static void nl80211_send_remain_on_chan_event(
 	int cmd, struct cfg80211_registered_device *rdev,
 	struct wireless_dev *wdev, u64 cookie,
 	struct ieee80211_channel *chan,
-	enum nl80211_channel_type channel_type,
 	unsigned int duration, gfp_t gfp)
 {
 	struct sk_buff *msg;
@@ -8271,7 +8505,8 @@ static void nl80211_send_remain_on_chan_event(
 					 wdev->netdev->ifindex)) ||
 	    nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
 	    nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
-	    nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
+	    nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+			NL80211_CHAN_NO_HT) ||
 	    nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
 		goto nla_put_failure;
 
@@ -8293,23 +8528,20 @@ static void nl80211_send_remain_on_chan_event(
 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
 				    struct wireless_dev *wdev, u64 cookie,
 				    struct ieee80211_channel *chan,
-				    enum nl80211_channel_type channel_type,
 				    unsigned int duration, gfp_t gfp)
 {
 	nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
 					  rdev, wdev, cookie, chan,
-					  channel_type, duration, gfp);
+					  duration, gfp);
 }
 
 void nl80211_send_remain_on_channel_cancel(
 	struct cfg80211_registered_device *rdev,
 	struct wireless_dev *wdev,
-	u64 cookie, struct ieee80211_channel *chan,
-	enum nl80211_channel_type channel_type, gfp_t gfp)
+	u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
 {
 	nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
-					  rdev, wdev, cookie, chan,
-					  channel_type, 0, gfp);
+					  rdev, wdev, cookie, chan, 0, gfp);
 }
 
 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
@@ -8665,8 +8897,8 @@ void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
 }
 
 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
-			      struct net_device *netdev, int freq,
-			      enum nl80211_channel_type type, gfp_t gfp)
+			      struct net_device *netdev,
+			      struct cfg80211_chan_def *chandef, gfp_t gfp)
 {
 	struct sk_buff *msg;
 	void *hdr;
@@ -8681,9 +8913,10 @@ void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
 		return;
 	}
 
-	if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
-	    nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
-	    nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
+	if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
+		goto nla_put_failure;
+
+	if (nl80211_send_chandef(msg, chandef))
 		goto nla_put_failure;
 
 	genlmsg_end(msg, hdr);
@@ -8800,7 +9033,10 @@ void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
 	void *hdr;
 	int err;
 
+	trace_cfg80211_probe_status(dev, addr, cookie, acked);
+
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
+
 	if (!msg)
 		return;
 
@@ -8835,44 +9071,96 @@ EXPORT_SYMBOL(cfg80211_probe_status);
 
 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
 				 const u8 *frame, size_t len,
-				 int freq, int sig_dbm, gfp_t gfp)
+				 int freq, int sig_dbm)
 {
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct sk_buff *msg;
 	void *hdr;
-	u32 nlportid = ACCESS_ONCE(rdev->ap_beacons_nlportid);
+	struct cfg80211_beacon_registration *reg;
 
-	if (!nlportid)
-		return;
+	trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
+
+	spin_lock_bh(&rdev->beacon_registrations_lock);
+	list_for_each_entry(reg, &rdev->beacon_registrations, list) {
+		msg = nlmsg_new(len + 100, GFP_ATOMIC);
+		if (!msg) {
+			spin_unlock_bh(&rdev->beacon_registrations_lock);
+			return;
+		}
+
+		hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
+		if (!hdr)
+			goto nla_put_failure;
 
-	msg = nlmsg_new(len + 100, gfp);
+		if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
+		    (freq &&
+		     nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
+		    (sig_dbm &&
+		     nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
+		    nla_put(msg, NL80211_ATTR_FRAME, len, frame))
+			goto nla_put_failure;
+
+		genlmsg_end(msg, hdr);
+
+		genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
+	}
+	spin_unlock_bh(&rdev->beacon_registrations_lock);
+	return;
+
+ nla_put_failure:
+	spin_unlock_bh(&rdev->beacon_registrations_lock);
+	if (hdr)
+		genlmsg_cancel(msg, hdr);
+	nlmsg_free(msg);
+}
+EXPORT_SYMBOL(cfg80211_report_obss_beacon);
+
+void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
+				enum nl80211_tdls_operation oper,
+				u16 reason_code, gfp_t gfp)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	struct sk_buff *msg;
+	void *hdr;
+	int err;
+
+	trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
+					 reason_code);
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
 		return;
 
-	hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
+	hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
 	if (!hdr) {
 		nlmsg_free(msg);
 		return;
 	}
 
 	if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
-	    (freq &&
-	     nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
-	    (sig_dbm &&
-	     nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
-	    nla_put(msg, NL80211_ATTR_FRAME, len, frame))
+	    nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
+	    nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
+	    nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
+	    (reason_code > 0 &&
+	     nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
 		goto nla_put_failure;
 
-	genlmsg_end(msg, hdr);
+	err = genlmsg_end(msg, hdr);
+	if (err < 0) {
+		nlmsg_free(msg);
+		return;
+	}
 
-	genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
+	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
  nla_put_failure:
 	genlmsg_cancel(msg, hdr);
 	nlmsg_free(msg);
 }
-EXPORT_SYMBOL(cfg80211_report_obss_beacon);
+EXPORT_SYMBOL(cfg80211_tdls_oper_request);
 
 static int nl80211_netlink_notify(struct notifier_block * nb,
 				  unsigned long state,
@@ -8881,6 +9169,7 @@ static int nl80211_netlink_notify(struct notifier_block * nb,
 	struct netlink_notify *notify = _notify;
 	struct cfg80211_registered_device *rdev;
 	struct wireless_dev *wdev;
+	struct cfg80211_beacon_registration *reg, *tmp;
 
 	if (state != NETLINK_URELEASE)
 		return NOTIFY_DONE;
@@ -8890,8 +9179,17 @@ static int nl80211_netlink_notify(struct notifier_block * nb,
 	list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
 		list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
 			cfg80211_mlme_unregister_socket(wdev, notify->portid);
-		if (rdev->ap_beacons_nlportid == notify->portid)
-			rdev->ap_beacons_nlportid = 0;
+
+		spin_lock_bh(&rdev->beacon_registrations_lock);
+		list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
+					 list) {
+			if (reg->nlportid == notify->portid) {
+				list_del(&reg->list);
+				kfree(reg);
+				break;
+			}
+		}
+		spin_unlock_bh(&rdev->beacon_registrations_lock);
 	}
 
 	rcu_read_unlock();
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index f615351..2acba84 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -76,13 +76,11 @@ void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
 				    struct wireless_dev *wdev, u64 cookie,
 				    struct ieee80211_channel *chan,
-				    enum nl80211_channel_type channel_type,
 				    unsigned int duration, gfp_t gfp);
 void nl80211_send_remain_on_channel_cancel(
 	struct cfg80211_registered_device *rdev,
 	struct wireless_dev *wdev,
-	u64 cookie, struct ieee80211_channel *chan,
-	enum nl80211_channel_type channel_type, gfp_t gfp);
+	u64 cookie, struct ieee80211_channel *chan, gfp_t gfp);
 
 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
 			    struct net_device *dev, const u8 *mac_addr,
@@ -129,8 +127,8 @@ void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
 				    const u8 *bssid, bool preauth, gfp_t gfp);
 
 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
-			      struct net_device *dev, int freq,
-			      enum nl80211_channel_type type, gfp_t gfp);
+			      struct net_device *dev,
+			      struct cfg80211_chan_def *chandef, gfp_t gfp);
 
 bool nl80211_unexpected_frame(struct net_device *dev,
 			      const u8 *addr, gfp_t gfp);
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
new file mode 100644
index 0000000..6c0c819
--- /dev/null
+++ b/net/wireless/rdev-ops.h
@@ -0,0 +1,878 @@
+#ifndef __CFG80211_RDEV_OPS
+#define __CFG80211_RDEV_OPS
+
+#include <linux/rtnetlink.h>
+#include <net/cfg80211.h>
+#include "core.h"
+#include "trace.h"
+
+static inline int rdev_suspend(struct cfg80211_registered_device *rdev)
+{
+	int ret;
+	trace_rdev_suspend(&rdev->wiphy, rdev->wowlan);
+	ret = rdev->ops->suspend(&rdev->wiphy, rdev->wowlan);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_resume(struct cfg80211_registered_device *rdev)
+{
+	int ret;
+	trace_rdev_resume(&rdev->wiphy);
+	ret = rdev->ops->resume(&rdev->wiphy);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline void rdev_set_wakeup(struct cfg80211_registered_device *rdev,
+				   bool enabled)
+{
+	trace_rdev_set_wakeup(&rdev->wiphy, enabled);
+	rdev->ops->set_wakeup(&rdev->wiphy, enabled);
+	trace_rdev_return_void(&rdev->wiphy);
+}
+
+static inline struct wireless_dev
+*rdev_add_virtual_intf(struct cfg80211_registered_device *rdev, char *name,
+		       enum nl80211_iftype type, u32 *flags,
+		       struct vif_params *params)
+{
+	struct wireless_dev *ret;
+	trace_rdev_add_virtual_intf(&rdev->wiphy, name, type);
+	ret = rdev->ops->add_virtual_intf(&rdev->wiphy, name, type, flags,
+					  params);
+	trace_rdev_return_wdev(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int
+rdev_del_virtual_intf(struct cfg80211_registered_device *rdev,
+		      struct wireless_dev *wdev)
+{
+	int ret;
+	trace_rdev_del_virtual_intf(&rdev->wiphy, wdev);
+	ret = rdev->ops->del_virtual_intf(&rdev->wiphy, wdev);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int
+rdev_change_virtual_intf(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev, enum nl80211_iftype type,
+			 u32 *flags, struct vif_params *params)
+{
+	int ret;
+	trace_rdev_change_virtual_intf(&rdev->wiphy, dev, type);
+	ret = rdev->ops->change_virtual_intf(&rdev->wiphy, dev, type, flags,
+					     params);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_add_key(struct cfg80211_registered_device *rdev,
+			       struct net_device *netdev, u8 key_index,
+			       bool pairwise, const u8 *mac_addr,
+			       struct key_params *params)
+{
+	int ret;
+	trace_rdev_add_key(&rdev->wiphy, netdev, key_index, pairwise, mac_addr);
+	ret = rdev->ops->add_key(&rdev->wiphy, netdev, key_index, pairwise,
+				  mac_addr, params);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int
+rdev_get_key(struct cfg80211_registered_device *rdev, struct net_device *netdev,
+	     u8 key_index, bool pairwise, const u8 *mac_addr, void *cookie,
+	     void (*callback)(void *cookie, struct key_params*))
+{
+	int ret;
+	trace_rdev_get_key(&rdev->wiphy, netdev, key_index, pairwise, mac_addr);
+	ret = rdev->ops->get_key(&rdev->wiphy, netdev, key_index, pairwise,
+				  mac_addr, cookie, callback);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_del_key(struct cfg80211_registered_device *rdev,
+			       struct net_device *netdev, u8 key_index,
+			       bool pairwise, const u8 *mac_addr)
+{
+	int ret;
+	trace_rdev_del_key(&rdev->wiphy, netdev, key_index, pairwise, mac_addr);
+	ret = rdev->ops->del_key(&rdev->wiphy, netdev, key_index, pairwise,
+				  mac_addr);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int
+rdev_set_default_key(struct cfg80211_registered_device *rdev,
+		     struct net_device *netdev, u8 key_index, bool unicast,
+		     bool multicast)
+{
+	int ret;
+	trace_rdev_set_default_key(&rdev->wiphy, netdev, key_index,
+				   unicast, multicast);
+	ret = rdev->ops->set_default_key(&rdev->wiphy, netdev, key_index,
+					  unicast, multicast);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int
+rdev_set_default_mgmt_key(struct cfg80211_registered_device *rdev,
+			  struct net_device *netdev, u8 key_index)
+{
+	int ret;
+	trace_rdev_set_default_mgmt_key(&rdev->wiphy, netdev, key_index);
+	ret = rdev->ops->set_default_mgmt_key(&rdev->wiphy, netdev,
+					       key_index);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_start_ap(struct cfg80211_registered_device *rdev,
+				struct net_device *dev,
+				struct cfg80211_ap_settings *settings)
+{
+	int ret;
+	trace_rdev_start_ap(&rdev->wiphy, dev, settings);
+	ret = rdev->ops->start_ap(&rdev->wiphy, dev, settings);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_change_beacon(struct cfg80211_registered_device *rdev,
+				     struct net_device *dev,
+				     struct cfg80211_beacon_data *info)
+{
+	int ret;
+	trace_rdev_change_beacon(&rdev->wiphy, dev, info);
+	ret = rdev->ops->change_beacon(&rdev->wiphy, dev, info);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_stop_ap(struct cfg80211_registered_device *rdev,
+			       struct net_device *dev)
+{
+	int ret;
+	trace_rdev_stop_ap(&rdev->wiphy, dev);
+	ret = rdev->ops->stop_ap(&rdev->wiphy, dev);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_add_station(struct cfg80211_registered_device *rdev,
+				   struct net_device *dev, u8 *mac,
+				   struct station_parameters *params)
+{
+	int ret;
+	trace_rdev_add_station(&rdev->wiphy, dev, mac, params);
+	ret = rdev->ops->add_station(&rdev->wiphy, dev, mac, params);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_del_station(struct cfg80211_registered_device *rdev,
+				   struct net_device *dev, u8 *mac)
+{
+	int ret;
+	trace_rdev_del_station(&rdev->wiphy, dev, mac);
+	ret = rdev->ops->del_station(&rdev->wiphy, dev, mac);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_change_station(struct cfg80211_registered_device *rdev,
+				      struct net_device *dev, u8 *mac,
+				      struct station_parameters *params)
+{
+	int ret;
+	trace_rdev_change_station(&rdev->wiphy, dev, mac, params);
+	ret = rdev->ops->change_station(&rdev->wiphy, dev, mac, params);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_get_station(struct cfg80211_registered_device *rdev,
+				   struct net_device *dev, u8 *mac,
+				   struct station_info *sinfo)
+{
+	int ret;
+	trace_rdev_get_station(&rdev->wiphy, dev, mac);
+	ret = rdev->ops->get_station(&rdev->wiphy, dev, mac, sinfo);
+	trace_rdev_return_int_station_info(&rdev->wiphy, ret, sinfo);
+	return ret;
+}
+
+static inline int rdev_dump_station(struct cfg80211_registered_device *rdev,
+				    struct net_device *dev, int idx, u8 *mac,
+				    struct station_info *sinfo)
+{
+	int ret;
+	trace_rdev_dump_station(&rdev->wiphy, dev, idx, mac);
+	ret = rdev->ops->dump_station(&rdev->wiphy, dev, idx, mac, sinfo);
+	trace_rdev_return_int_station_info(&rdev->wiphy, ret, sinfo);
+	return ret;
+}
+
+static inline int rdev_add_mpath(struct cfg80211_registered_device *rdev,
+				 struct net_device *dev, u8 *dst, u8 *next_hop)
+{
+	int ret;
+	trace_rdev_add_mpath(&rdev->wiphy, dev, dst, next_hop);
+	ret = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_del_mpath(struct cfg80211_registered_device *rdev,
+				 struct net_device *dev, u8 *dst)
+{
+	int ret;
+	trace_rdev_del_mpath(&rdev->wiphy, dev, dst);
+	ret = rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_change_mpath(struct cfg80211_registered_device *rdev,
+				    struct net_device *dev, u8 *dst,
+				    u8 *next_hop)
+{
+	int ret;
+	trace_rdev_change_mpath(&rdev->wiphy, dev, dst, next_hop);
+	ret = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_get_mpath(struct cfg80211_registered_device *rdev,
+				 struct net_device *dev, u8 *dst, u8 *next_hop,
+				 struct mpath_info *pinfo)
+{
+	int ret;
+	trace_rdev_get_mpath(&rdev->wiphy, dev, dst, next_hop);
+	ret = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, pinfo);
+	trace_rdev_return_int_mpath_info(&rdev->wiphy, ret, pinfo);
+	return ret;
+
+}
+
+static inline int rdev_dump_mpath(struct cfg80211_registered_device *rdev,
+				  struct net_device *dev, int idx, u8 *dst,
+				  u8 *next_hop, struct mpath_info *pinfo)
+
+{
+	int ret;
+	trace_rdev_dump_mpath(&rdev->wiphy, dev, idx, dst, next_hop);
+	ret = rdev->ops->dump_mpath(&rdev->wiphy, dev, idx, dst, next_hop,
+				     pinfo);
+	trace_rdev_return_int_mpath_info(&rdev->wiphy, ret, pinfo);
+	return ret;
+}
+
+static inline int
+rdev_get_mesh_config(struct cfg80211_registered_device *rdev,
+		     struct net_device *dev, struct mesh_config *conf)
+{
+	int ret;
+	trace_rdev_get_mesh_config(&rdev->wiphy, dev);
+	ret = rdev->ops->get_mesh_config(&rdev->wiphy, dev, conf);
+	trace_rdev_return_int_mesh_config(&rdev->wiphy, ret, conf);
+	return ret;
+}
+
+static inline int
+rdev_update_mesh_config(struct cfg80211_registered_device *rdev,
+			struct net_device *dev, u32 mask,
+			const struct mesh_config *nconf)
+{
+	int ret;
+	trace_rdev_update_mesh_config(&rdev->wiphy, dev, mask, nconf);
+	ret = rdev->ops->update_mesh_config(&rdev->wiphy, dev, mask, nconf);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_join_mesh(struct cfg80211_registered_device *rdev,
+				 struct net_device *dev,
+				 const struct mesh_config *conf,
+				 const struct mesh_setup *setup)
+{
+	int ret;
+	trace_rdev_join_mesh(&rdev->wiphy, dev, conf, setup);
+	ret = rdev->ops->join_mesh(&rdev->wiphy, dev, conf, setup);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+
+static inline int rdev_leave_mesh(struct cfg80211_registered_device *rdev,
+				  struct net_device *dev)
+{
+	int ret;
+	trace_rdev_leave_mesh(&rdev->wiphy, dev);
+	ret = rdev->ops->leave_mesh(&rdev->wiphy, dev);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_change_bss(struct cfg80211_registered_device *rdev,
+				  struct net_device *dev,
+				  struct bss_parameters *params)
+
+{
+	int ret;
+	trace_rdev_change_bss(&rdev->wiphy, dev, params);
+	ret = rdev->ops->change_bss(&rdev->wiphy, dev, params);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_set_txq_params(struct cfg80211_registered_device *rdev,
+				      struct net_device *dev,
+				      struct ieee80211_txq_params *params)
+
+{
+	int ret;
+	trace_rdev_set_txq_params(&rdev->wiphy, dev, params);
+	ret = rdev->ops->set_txq_params(&rdev->wiphy, dev, params);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int
+rdev_libertas_set_mesh_channel(struct cfg80211_registered_device *rdev,
+			       struct net_device *dev,
+			       struct ieee80211_channel *chan)
+{
+	int ret;
+	trace_rdev_libertas_set_mesh_channel(&rdev->wiphy, dev, chan);
+	ret = rdev->ops->libertas_set_mesh_channel(&rdev->wiphy, dev, chan);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int
+rdev_set_monitor_channel(struct cfg80211_registered_device *rdev,
+			 struct cfg80211_chan_def *chandef)
+{
+	int ret;
+	trace_rdev_set_monitor_channel(&rdev->wiphy, chandef);
+	ret = rdev->ops->set_monitor_channel(&rdev->wiphy, chandef);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_scan(struct cfg80211_registered_device *rdev,
+			    struct cfg80211_scan_request *request)
+{
+	int ret;
+	trace_rdev_scan(&rdev->wiphy, request);
+	ret = rdev->ops->scan(&rdev->wiphy, request);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_auth(struct cfg80211_registered_device *rdev,
+			    struct net_device *dev,
+			    struct cfg80211_auth_request *req)
+{
+	int ret;
+	trace_rdev_auth(&rdev->wiphy, dev, req);
+	ret = rdev->ops->auth(&rdev->wiphy, dev, req);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_assoc(struct cfg80211_registered_device *rdev,
+			     struct net_device *dev,
+			     struct cfg80211_assoc_request *req)
+{
+	int ret;
+	trace_rdev_assoc(&rdev->wiphy, dev, req);
+	ret = rdev->ops->assoc(&rdev->wiphy, dev, req);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_deauth(struct cfg80211_registered_device *rdev,
+			      struct net_device *dev,
+			      struct cfg80211_deauth_request *req)
+{
+	int ret;
+	trace_rdev_deauth(&rdev->wiphy, dev, req);
+	ret = rdev->ops->deauth(&rdev->wiphy, dev, req);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_disassoc(struct cfg80211_registered_device *rdev,
+				struct net_device *dev,
+				struct cfg80211_disassoc_request *req)
+{
+	int ret;
+	trace_rdev_disassoc(&rdev->wiphy, dev, req);
+	ret = rdev->ops->disassoc(&rdev->wiphy, dev, req);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_connect(struct cfg80211_registered_device *rdev,
+			       struct net_device *dev,
+			       struct cfg80211_connect_params *sme)
+{
+	int ret;
+	trace_rdev_connect(&rdev->wiphy, dev, sme);
+	ret = rdev->ops->connect(&rdev->wiphy, dev, sme);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_disconnect(struct cfg80211_registered_device *rdev,
+				  struct net_device *dev, u16 reason_code)
+{
+	int ret;
+	trace_rdev_disconnect(&rdev->wiphy, dev, reason_code);
+	ret = rdev->ops->disconnect(&rdev->wiphy, dev, reason_code);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_join_ibss(struct cfg80211_registered_device *rdev,
+				 struct net_device *dev,
+				 struct cfg80211_ibss_params *params)
+{
+	int ret;
+	trace_rdev_join_ibss(&rdev->wiphy, dev, params);
+	ret = rdev->ops->join_ibss(&rdev->wiphy, dev, params);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_leave_ibss(struct cfg80211_registered_device *rdev,
+				  struct net_device *dev)
+{
+	int ret;
+	trace_rdev_leave_ibss(&rdev->wiphy, dev);
+	ret = rdev->ops->leave_ibss(&rdev->wiphy, dev);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int
+rdev_set_wiphy_params(struct cfg80211_registered_device *rdev, u32 changed)
+{
+	int ret;
+	trace_rdev_set_wiphy_params(&rdev->wiphy, changed);
+	ret = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_set_tx_power(struct cfg80211_registered_device *rdev,
+				    struct wireless_dev *wdev,
+				    enum nl80211_tx_power_setting type, int mbm)
+{
+	int ret;
+	trace_rdev_set_tx_power(&rdev->wiphy, wdev, type, mbm);
+	ret = rdev->ops->set_tx_power(&rdev->wiphy, wdev, type, mbm);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_get_tx_power(struct cfg80211_registered_device *rdev,
+				    struct wireless_dev *wdev, int *dbm)
+{
+	int ret;
+	trace_rdev_get_tx_power(&rdev->wiphy, wdev);
+	ret = rdev->ops->get_tx_power(&rdev->wiphy, wdev, dbm);
+	trace_rdev_return_int_int(&rdev->wiphy, ret, *dbm);
+	return ret;
+}
+
+static inline int rdev_set_wds_peer(struct cfg80211_registered_device *rdev,
+				    struct net_device *dev, const u8 *addr)
+{
+	int ret;
+	trace_rdev_set_wds_peer(&rdev->wiphy, dev, addr);
+	ret = rdev->ops->set_wds_peer(&rdev->wiphy, dev, addr);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline void rdev_rfkill_poll(struct cfg80211_registered_device *rdev)
+{
+	trace_rdev_rfkill_poll(&rdev->wiphy);
+	rdev->ops->rfkill_poll(&rdev->wiphy);
+	trace_rdev_return_void(&rdev->wiphy);
+}
+
+
+#ifdef CONFIG_NL80211_TESTMODE
+static inline int rdev_testmode_cmd(struct cfg80211_registered_device *rdev,
+				    void *data, int len)
+{
+	int ret;
+	trace_rdev_testmode_cmd(&rdev->wiphy);
+	ret = rdev->ops->testmode_cmd(&rdev->wiphy, data, len);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_testmode_dump(struct cfg80211_registered_device *rdev,
+				     struct sk_buff *skb,
+				     struct netlink_callback *cb, void *data,
+				     int len)
+{
+	int ret;
+	trace_rdev_testmode_dump(&rdev->wiphy);
+	ret = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb, data, len);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+#endif
+
+static inline int
+rdev_set_bitrate_mask(struct cfg80211_registered_device *rdev,
+		      struct net_device *dev, const u8 *peer,
+		      const struct cfg80211_bitrate_mask *mask)
+{
+	int ret;
+	trace_rdev_set_bitrate_mask(&rdev->wiphy, dev, peer, mask);
+	ret = rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, peer, mask);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_dump_survey(struct cfg80211_registered_device *rdev,
+				   struct net_device *netdev, int idx,
+				   struct survey_info *info)
+{
+	int ret;
+	trace_rdev_dump_survey(&rdev->wiphy, netdev, idx);
+	ret = rdev->ops->dump_survey(&rdev->wiphy, netdev, idx, info);
+	if (ret < 0)
+		trace_rdev_return_int(&rdev->wiphy, ret);
+	else
+		trace_rdev_return_int_survey_info(&rdev->wiphy, ret, info);
+	return ret;
+}
+
+static inline int rdev_set_pmksa(struct cfg80211_registered_device *rdev,
+				 struct net_device *netdev,
+				 struct cfg80211_pmksa *pmksa)
+{
+	int ret;
+	trace_rdev_set_pmksa(&rdev->wiphy, netdev, pmksa);
+	ret = rdev->ops->set_pmksa(&rdev->wiphy, netdev, pmksa);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_del_pmksa(struct cfg80211_registered_device *rdev,
+				 struct net_device *netdev,
+				 struct cfg80211_pmksa *pmksa)
+{
+	int ret;
+	trace_rdev_del_pmksa(&rdev->wiphy, netdev, pmksa);
+	ret = rdev->ops->del_pmksa(&rdev->wiphy, netdev, pmksa);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_flush_pmksa(struct cfg80211_registered_device *rdev,
+				   struct net_device *netdev)
+{
+	int ret;
+	trace_rdev_flush_pmksa(&rdev->wiphy, netdev);
+	ret = rdev->ops->flush_pmksa(&rdev->wiphy, netdev);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int
+rdev_remain_on_channel(struct cfg80211_registered_device *rdev,
+		       struct wireless_dev *wdev,
+		       struct ieee80211_channel *chan,
+		       unsigned int duration, u64 *cookie)
+{
+	int ret;
+	trace_rdev_remain_on_channel(&rdev->wiphy, wdev, chan, duration);
+	ret = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan,
+					   duration, cookie);
+	trace_rdev_return_int_cookie(&rdev->wiphy, ret, *cookie);
+	return ret;
+}
+
+static inline int
+rdev_cancel_remain_on_channel(struct cfg80211_registered_device *rdev,
+			      struct wireless_dev *wdev, u64 cookie)
+{
+	int ret;
+	trace_rdev_cancel_remain_on_channel(&rdev->wiphy, wdev, cookie);
+	ret = rdev->ops->cancel_remain_on_channel(&rdev->wiphy, wdev, cookie);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_mgmt_tx(struct cfg80211_registered_device *rdev,
+			       struct wireless_dev *wdev,
+			       struct ieee80211_channel *chan, bool offchan,
+			       unsigned int wait, const u8 *buf, size_t len,
+			       bool no_cck, bool dont_wait_for_ack, u64 *cookie)
+{
+	int ret;
+	trace_rdev_mgmt_tx(&rdev->wiphy, wdev, chan, offchan,
+			   wait, no_cck, dont_wait_for_ack);
+	ret = rdev->ops->mgmt_tx(&rdev->wiphy, wdev, chan, offchan,
+				  wait, buf, len, no_cck,
+				  dont_wait_for_ack, cookie);
+	trace_rdev_return_int_cookie(&rdev->wiphy, ret, *cookie);
+	return ret;
+}
+
+static inline int
+rdev_mgmt_tx_cancel_wait(struct cfg80211_registered_device *rdev,
+			 struct wireless_dev *wdev, u64 cookie)
+{
+	int ret;
+	trace_rdev_mgmt_tx_cancel_wait(&rdev->wiphy, wdev, cookie);
+	ret = rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, wdev, cookie);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_set_power_mgmt(struct cfg80211_registered_device *rdev,
+				      struct net_device *dev, bool enabled,
+				      int timeout)
+{
+	int ret;
+	trace_rdev_set_power_mgmt(&rdev->wiphy, dev, enabled, timeout);
+	ret = rdev->ops->set_power_mgmt(&rdev->wiphy, dev, enabled, timeout);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int
+rdev_set_cqm_rssi_config(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev, s32 rssi_thold, u32 rssi_hyst)
+{
+	int ret;
+	trace_rdev_set_cqm_rssi_config(&rdev->wiphy, dev, rssi_thold,
+				       rssi_hyst);
+	ret = rdev->ops->set_cqm_rssi_config(&rdev->wiphy, dev, rssi_thold,
+				       rssi_hyst);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int
+rdev_set_cqm_txe_config(struct cfg80211_registered_device *rdev,
+			struct net_device *dev, u32 rate, u32 pkts, u32 intvl)
+{
+	int ret;
+	trace_rdev_set_cqm_txe_config(&rdev->wiphy, dev, rate, pkts, intvl);
+	ret = rdev->ops->set_cqm_txe_config(&rdev->wiphy, dev, rate, pkts,
+					     intvl);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline void
+rdev_mgmt_frame_register(struct cfg80211_registered_device *rdev,
+			 struct wireless_dev *wdev, u16 frame_type, bool reg)
+{
+	trace_rdev_mgmt_frame_register(&rdev->wiphy, wdev , frame_type, reg);
+	rdev->ops->mgmt_frame_register(&rdev->wiphy, wdev , frame_type, reg);
+	trace_rdev_return_void(&rdev->wiphy);
+}
+
+static inline int rdev_set_antenna(struct cfg80211_registered_device *rdev,
+				   u32 tx_ant, u32 rx_ant)
+{
+	int ret;
+	trace_rdev_set_antenna(&rdev->wiphy, tx_ant, rx_ant);
+	ret = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_get_antenna(struct cfg80211_registered_device *rdev,
+				   u32 *tx_ant, u32 *rx_ant)
+{
+	int ret;
+	trace_rdev_get_antenna(&rdev->wiphy);
+	ret = rdev->ops->get_antenna(&rdev->wiphy, tx_ant, rx_ant);
+	if (ret)
+		trace_rdev_return_int(&rdev->wiphy, ret);
+	else
+		trace_rdev_return_int_tx_rx(&rdev->wiphy, ret, *tx_ant,
+					    *rx_ant);
+	return ret;
+}
+
+static inline int rdev_set_ringparam(struct cfg80211_registered_device *rdev,
+				     u32 tx, u32 rx)
+{
+	int ret;
+	trace_rdev_set_ringparam(&rdev->wiphy, tx, rx);
+	ret = rdev->ops->set_ringparam(&rdev->wiphy, tx, rx);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline void rdev_get_ringparam(struct cfg80211_registered_device *rdev,
+				      u32 *tx, u32 *tx_max, u32 *rx,
+				      u32 *rx_max)
+{
+	trace_rdev_get_ringparam(&rdev->wiphy);
+	rdev->ops->get_ringparam(&rdev->wiphy, tx, tx_max, rx, rx_max);
+	trace_rdev_return_void_tx_rx(&rdev->wiphy, *tx, *tx_max, *rx, *rx_max);
+}
+
+static inline int
+rdev_sched_scan_start(struct cfg80211_registered_device *rdev,
+		      struct net_device *dev,
+		      struct cfg80211_sched_scan_request *request)
+{
+	int ret;
+	trace_rdev_sched_scan_start(&rdev->wiphy, dev, request);
+	ret = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_sched_scan_stop(struct cfg80211_registered_device *rdev,
+				       struct net_device *dev)
+{
+	int ret;
+	trace_rdev_sched_scan_stop(&rdev->wiphy, dev);
+	ret = rdev->ops->sched_scan_stop(&rdev->wiphy, dev);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_set_rekey_data(struct cfg80211_registered_device *rdev,
+				      struct net_device *dev,
+				      struct cfg80211_gtk_rekey_data *data)
+{
+	int ret;
+	trace_rdev_set_rekey_data(&rdev->wiphy, dev);
+	ret = rdev->ops->set_rekey_data(&rdev->wiphy, dev, data);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_tdls_mgmt(struct cfg80211_registered_device *rdev,
+				 struct net_device *dev, u8 *peer,
+				 u8 action_code, u8 dialog_token,
+				 u16 status_code, const u8 *buf, size_t len)
+{
+	int ret;
+	trace_rdev_tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
+			     dialog_token, status_code, buf, len);
+	ret = rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
+				   dialog_token, status_code, buf, len);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_tdls_oper(struct cfg80211_registered_device *rdev,
+				 struct net_device *dev, u8 *peer,
+				 enum nl80211_tdls_operation oper)
+{
+	int ret;
+	trace_rdev_tdls_oper(&rdev->wiphy, dev, peer, oper);
+	ret = rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, oper);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int rdev_probe_client(struct cfg80211_registered_device *rdev,
+				    struct net_device *dev, const u8 *peer,
+				    u64 *cookie)
+{
+	int ret;
+	trace_rdev_probe_client(&rdev->wiphy, dev, peer);
+	ret = rdev->ops->probe_client(&rdev->wiphy, dev, peer, cookie);
+	trace_rdev_return_int_cookie(&rdev->wiphy, ret, *cookie);
+	return ret;
+}
+
+static inline int rdev_set_noack_map(struct cfg80211_registered_device *rdev,
+				     struct net_device *dev, u16 noack_map)
+{
+	int ret;
+	trace_rdev_set_noack_map(&rdev->wiphy, dev, noack_map);
+	ret = rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline int
+rdev_get_et_sset_count(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev, int sset)
+{
+	int ret;
+	trace_rdev_get_et_sset_count(&rdev->wiphy, dev, sset);
+	ret = rdev->ops->get_et_sset_count(&rdev->wiphy, dev, sset);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline void rdev_get_et_stats(struct cfg80211_registered_device *rdev,
+				     struct net_device *dev,
+				     struct ethtool_stats *stats, u64 *data)
+{
+	trace_rdev_get_et_stats(&rdev->wiphy, dev);
+	rdev->ops->get_et_stats(&rdev->wiphy, dev, stats, data);
+	trace_rdev_return_void(&rdev->wiphy);
+}
+
+static inline void rdev_get_et_strings(struct cfg80211_registered_device *rdev,
+				       struct net_device *dev, u32 sset,
+				       u8 *data)
+{
+	trace_rdev_get_et_strings(&rdev->wiphy, dev, sset);
+	rdev->ops->get_et_strings(&rdev->wiphy, dev, sset, data);
+	trace_rdev_return_void(&rdev->wiphy);
+}
+
+static inline int
+rdev_get_channel(struct cfg80211_registered_device *rdev,
+		 struct wireless_dev *wdev,
+		 struct cfg80211_chan_def *chandef)
+{
+	int ret;
+
+	trace_rdev_get_channel(&rdev->wiphy, wdev);
+	ret = rdev->ops->get_channel(&rdev->wiphy, wdev, chandef);
+	trace_rdev_return_chandef(&rdev->wiphy, ret, chandef);
+
+	return ret;
+}
+
+static inline int rdev_start_p2p_device(struct cfg80211_registered_device *rdev,
+					struct wireless_dev *wdev)
+{
+	int ret;
+
+	trace_rdev_start_p2p_device(&rdev->wiphy, wdev);
+	ret = rdev->ops->start_p2p_device(&rdev->wiphy, wdev);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline void rdev_stop_p2p_device(struct cfg80211_registered_device *rdev,
+					struct wireless_dev *wdev)
+{
+	trace_rdev_stop_p2p_device(&rdev->wiphy, wdev);
+	rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);
+	trace_rdev_return_void(&rdev->wiphy);
+}					
+#endif /* __CFG80211_RDEV_OPS */
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index b75756b..6e53089 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1796,7 +1796,7 @@ EXPORT_SYMBOL(regulatory_hint);
  */
 void regulatory_hint_11d(struct wiphy *wiphy,
 			 enum ieee80211_band band,
-			 u8 *country_ie,
+			 const u8 *country_ie,
 			 u8 country_ie_len)
 {
 	char alpha2[2];
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index f023c8a..4c0a32f 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -81,7 +81,7 @@ int regulatory_hint_found_beacon(struct wiphy *wiphy,
  */
 void regulatory_hint_11d(struct wiphy *wiphy,
 			 enum ieee80211_band band,
-			 u8 *country_ie,
+			 const u8 *country_ie,
 			 u8 country_ie_len);
 
 /**
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 9730c98..01592d7 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -17,9 +17,63 @@
 #include "core.h"
 #include "nl80211.h"
 #include "wext-compat.h"
+#include "rdev-ops.h"
 
 #define IEEE80211_SCAN_RESULT_EXPIRE	(30 * HZ)
 
+static void bss_release(struct kref *ref)
+{
+	struct cfg80211_bss_ies *ies;
+	struct cfg80211_internal_bss *bss;
+
+	bss = container_of(ref, struct cfg80211_internal_bss, ref);
+
+	if (WARN_ON(atomic_read(&bss->hold)))
+		return;
+
+	if (bss->pub.free_priv)
+		bss->pub.free_priv(&bss->pub);
+
+	ies = (void *)rcu_access_pointer(bss->pub.beacon_ies);
+	if (ies)
+		kfree_rcu(ies, rcu_head);
+	ies = (void *)rcu_access_pointer(bss->pub.proberesp_ies);
+	if (ies)
+		kfree_rcu(ies, rcu_head);
+
+	kfree(bss);
+}
+
+/* must hold dev->bss_lock! */
+static void __cfg80211_unlink_bss(struct cfg80211_registered_device *dev,
+				  struct cfg80211_internal_bss *bss)
+{
+	list_del_init(&bss->list);
+	rb_erase(&bss->rbn, &dev->bss_tree);
+	kref_put(&bss->ref, bss_release);
+}
+
+/* must hold dev->bss_lock! */
+static void __cfg80211_bss_expire(struct cfg80211_registered_device *dev,
+				  unsigned long expire_time)
+{
+	struct cfg80211_internal_bss *bss, *tmp;
+	bool expired = false;
+
+	list_for_each_entry_safe(bss, tmp, &dev->bss_list, list) {
+		if (atomic_read(&bss->hold))
+			continue;
+		if (!time_after(expire_time, bss->ts))
+			continue;
+
+		__cfg80211_unlink_bss(dev, bss);
+		expired = true;
+	}
+
+	if (expired)
+		dev->bss_generation++;
+}
+
 void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak)
 {
 	struct cfg80211_scan_request *request;
@@ -45,10 +99,17 @@ void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak)
 	if (wdev->netdev)
 		cfg80211_sme_scan_done(wdev->netdev);
 
-	if (request->aborted)
+	if (request->aborted) {
 		nl80211_send_scan_aborted(rdev, wdev);
-	else
+	} else {
+		if (request->flags & NL80211_SCAN_FLAG_FLUSH) {
+			/* flush entries from previous scans */
+			spin_lock_bh(&rdev->bss_lock);
+			__cfg80211_bss_expire(rdev, request->scan_start);
+			spin_unlock_bh(&rdev->bss_lock);
+		}
 		nl80211_send_scan_done(rdev, wdev);
+	}
 
 #ifdef CONFIG_CFG80211_WEXT
 	if (wdev->netdev && !request->aborted) {
@@ -89,6 +150,7 @@ void __cfg80211_scan_done(struct work_struct *wk)
 
 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted)
 {
+	trace_cfg80211_scan_done(request, aborted);
 	WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req);
 
 	request->aborted = aborted;
@@ -99,22 +161,34 @@ EXPORT_SYMBOL(cfg80211_scan_done);
 void __cfg80211_sched_scan_results(struct work_struct *wk)
 {
 	struct cfg80211_registered_device *rdev;
+	struct cfg80211_sched_scan_request *request;
 
 	rdev = container_of(wk, struct cfg80211_registered_device,
 			    sched_scan_results_wk);
 
+	request = rdev->sched_scan_req;
+
 	mutex_lock(&rdev->sched_scan_mtx);
 
 	/* we don't have sched_scan_req anymore if the scan is stopping */
-	if (rdev->sched_scan_req)
-		nl80211_send_sched_scan_results(rdev,
-						rdev->sched_scan_req->dev);
+	if (request) {
+		if (request->flags & NL80211_SCAN_FLAG_FLUSH) {
+			/* flush entries from previous scans */
+			spin_lock_bh(&rdev->bss_lock);
+			__cfg80211_bss_expire(rdev, request->scan_start);
+			spin_unlock_bh(&rdev->bss_lock);
+			request->scan_start =
+				jiffies + msecs_to_jiffies(request->interval);
+		}
+		nl80211_send_sched_scan_results(rdev, request->dev);
+	}
 
 	mutex_unlock(&rdev->sched_scan_mtx);
 }
 
 void cfg80211_sched_scan_results(struct wiphy *wiphy)
 {
+	trace_cfg80211_sched_scan_results(wiphy);
 	/* ignore if we're not scanning */
 	if (wiphy_to_dev(wiphy)->sched_scan_req)
 		queue_work(cfg80211_wq,
@@ -126,6 +200,8 @@ void cfg80211_sched_scan_stopped(struct wiphy *wiphy)
 {
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	trace_cfg80211_sched_scan_stopped(wiphy);
+
 	mutex_lock(&rdev->sched_scan_mtx);
 	__cfg80211_stop_sched_scan(rdev, true);
 	mutex_unlock(&rdev->sched_scan_mtx);
@@ -145,7 +221,7 @@ int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
 	dev = rdev->sched_scan_req->dev;
 
 	if (!driver_initiated) {
-		int err = rdev->ops->sched_scan_stop(&rdev->wiphy, dev);
+		int err = rdev_sched_scan_stop(rdev, dev);
 		if (err)
 			return err;
 	}
@@ -158,24 +234,6 @@ int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
 	return 0;
 }
 
-static void bss_release(struct kref *ref)
-{
-	struct cfg80211_internal_bss *bss;
-
-	bss = container_of(ref, struct cfg80211_internal_bss, ref);
-	if (bss->pub.free_priv)
-		bss->pub.free_priv(&bss->pub);
-
-	if (bss->beacon_ies_allocated)
-		kfree(bss->pub.beacon_ies);
-	if (bss->proberesp_ies_allocated)
-		kfree(bss->pub.proberesp_ies);
-
-	BUG_ON(atomic_read(&bss->hold));
-
-	kfree(bss);
-}
-
 /* must hold dev->bss_lock! */
 void cfg80211_bss_age(struct cfg80211_registered_device *dev,
                       unsigned long age_secs)
@@ -183,37 +241,13 @@ void cfg80211_bss_age(struct cfg80211_registered_device *dev,
 	struct cfg80211_internal_bss *bss;
 	unsigned long age_jiffies = msecs_to_jiffies(age_secs * MSEC_PER_SEC);
 
-	list_for_each_entry(bss, &dev->bss_list, list) {
+	list_for_each_entry(bss, &dev->bss_list, list)
 		bss->ts -= age_jiffies;
-	}
-}
-
-/* must hold dev->bss_lock! */
-static void __cfg80211_unlink_bss(struct cfg80211_registered_device *dev,
-				  struct cfg80211_internal_bss *bss)
-{
-	list_del_init(&bss->list);
-	rb_erase(&bss->rbn, &dev->bss_tree);
-	kref_put(&bss->ref, bss_release);
 }
 
-/* must hold dev->bss_lock! */
 void cfg80211_bss_expire(struct cfg80211_registered_device *dev)
 {
-	struct cfg80211_internal_bss *bss, *tmp;
-	bool expired = false;
-
-	list_for_each_entry_safe(bss, tmp, &dev->bss_list, list) {
-		if (atomic_read(&bss->hold))
-			continue;
-		if (!time_after(jiffies, bss->ts + IEEE80211_SCAN_RESULT_EXPIRE))
-			continue;
-		__cfg80211_unlink_bss(dev, bss);
-		expired = true;
-	}
-
-	if (expired)
-		dev->bss_generation++;
+	__cfg80211_bss_expire(dev, jiffies - IEEE80211_SCAN_RESULT_EXPIRE);
 }
 
 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len)
@@ -257,7 +291,7 @@ const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
 }
 EXPORT_SYMBOL(cfg80211_find_vendor_ie);
 
-static int cmp_ies(u8 num, u8 *ies1, size_t len1, u8 *ies2, size_t len2)
+static int cmp_ies(u8 num, const u8 *ies1, int len1, const u8 *ies2, int len2)
 {
 	const u8 *ie1 = cfg80211_find_ie(num, ies1, len1);
 	const u8 *ie2 = cfg80211_find_ie(num, ies2, len2);
@@ -277,10 +311,10 @@ static int cmp_ies(u8 num, u8 *ies1, size_t len1, u8 *ies2, size_t len2)
 	return memcmp(ie1 + 2, ie2 + 2, ie1[1]);
 }
 
-static bool is_bss(struct cfg80211_bss *a,
-		   const u8 *bssid,
+static bool is_bss(struct cfg80211_bss *a, const u8 *bssid,
 		   const u8 *ssid, size_t ssid_len)
 {
+	const struct cfg80211_bss_ies *ies;
 	const u8 *ssidie;
 
 	if (bssid && !ether_addr_equal(a->bssid, bssid))
@@ -289,9 +323,10 @@ static bool is_bss(struct cfg80211_bss *a,
 	if (!ssid)
 		return true;
 
-	ssidie = cfg80211_find_ie(WLAN_EID_SSID,
-				  a->information_elements,
-				  a->len_information_elements);
+	ies = rcu_access_pointer(a->ies);
+	if (!ies)
+		return false;
+	ssidie = cfg80211_find_ie(WLAN_EID_SSID, ies->data, ies->len);
 	if (!ssidie)
 		return false;
 	if (ssidie[1] != ssid_len)
@@ -301,20 +336,21 @@ static bool is_bss(struct cfg80211_bss *a,
 
 static bool is_mesh_bss(struct cfg80211_bss *a)
 {
+	const struct cfg80211_bss_ies *ies;
 	const u8 *ie;
 
 	if (!WLAN_CAPABILITY_IS_STA_BSS(a->capability))
 		return false;
 
-	ie = cfg80211_find_ie(WLAN_EID_MESH_ID,
-			      a->information_elements,
-			      a->len_information_elements);
+	ies = rcu_access_pointer(a->ies);
+	if (!ies)
+		return false;
+
+	ie = cfg80211_find_ie(WLAN_EID_MESH_ID, ies->data, ies->len);
 	if (!ie)
 		return false;
 
-	ie = cfg80211_find_ie(WLAN_EID_MESH_CONFIG,
-			      a->information_elements,
-			      a->len_information_elements);
+	ie = cfg80211_find_ie(WLAN_EID_MESH_CONFIG, ies->data, ies->len);
 	if (!ie)
 		return false;
 
@@ -325,14 +361,17 @@ static bool is_mesh(struct cfg80211_bss *a,
 		    const u8 *meshid, size_t meshidlen,
 		    const u8 *meshcfg)
 {
+	const struct cfg80211_bss_ies *ies;
 	const u8 *ie;
 
 	if (!WLAN_CAPABILITY_IS_STA_BSS(a->capability))
 		return false;
 
-	ie = cfg80211_find_ie(WLAN_EID_MESH_ID,
-			      a->information_elements,
-			      a->len_information_elements);
+	ies = rcu_access_pointer(a->ies);
+	if (!ies)
+		return false;
+
+	ie = cfg80211_find_ie(WLAN_EID_MESH_ID, ies->data, ies->len);
 	if (!ie)
 		return false;
 	if (ie[1] != meshidlen)
@@ -340,9 +379,7 @@ static bool is_mesh(struct cfg80211_bss *a,
 	if (memcmp(ie + 2, meshid, meshidlen))
 		return false;
 
-	ie = cfg80211_find_ie(WLAN_EID_MESH_CONFIG,
-			      a->information_elements,
-			      a->len_information_elements);
+	ie = cfg80211_find_ie(WLAN_EID_MESH_CONFIG, ies->data, ies->len);
 	if (!ie)
 		return false;
 	if (ie[1] != sizeof(struct ieee80211_meshconf_ie))
@@ -354,30 +391,33 @@ static bool is_mesh(struct cfg80211_bss *a,
 	 * part in the same mesh.
 	 */
 	return memcmp(ie + 2, meshcfg,
-	    sizeof(struct ieee80211_meshconf_ie) - 2) == 0;
+		      sizeof(struct ieee80211_meshconf_ie) - 2) == 0;
 }
 
-static int cmp_bss_core(struct cfg80211_bss *a,
-			struct cfg80211_bss *b)
+static int cmp_bss_core(struct cfg80211_bss *a, struct cfg80211_bss *b)
 {
+	const struct cfg80211_bss_ies *a_ies, *b_ies;
 	int r;
 
 	if (a->channel != b->channel)
 		return b->channel->center_freq - a->channel->center_freq;
 
 	if (is_mesh_bss(a) && is_mesh_bss(b)) {
+		a_ies = rcu_access_pointer(a->ies);
+		if (!a_ies)
+			return -1;
+		b_ies = rcu_access_pointer(b->ies);
+		if (!b_ies)
+			return 1;
+
 		r = cmp_ies(WLAN_EID_MESH_ID,
-			    a->information_elements,
-			    a->len_information_elements,
-			    b->information_elements,
-			    b->len_information_elements);
+			    a_ies->data, a_ies->len,
+			    b_ies->data, b_ies->len);
 		if (r)
 			return r;
 		return cmp_ies(WLAN_EID_MESH_CONFIG,
-			       a->information_elements,
-			       a->len_information_elements,
-			       b->information_elements,
-			       b->len_information_elements);
+			       a_ies->data, a_ies->len,
+			       b_ies->data, b_ies->len);
 	}
 
 	/*
@@ -390,22 +430,28 @@ static int cmp_bss_core(struct cfg80211_bss *a,
 static int cmp_bss(struct cfg80211_bss *a,
 		   struct cfg80211_bss *b)
 {
+	const struct cfg80211_bss_ies *a_ies, *b_ies;
 	int r;
 
 	r = cmp_bss_core(a, b);
 	if (r)
 		return r;
 
+	a_ies = rcu_access_pointer(a->ies);
+	if (!a_ies)
+		return -1;
+	b_ies = rcu_access_pointer(b->ies);
+	if (!b_ies)
+		return 1;
+
 	return cmp_ies(WLAN_EID_SSID,
-		       a->information_elements,
-		       a->len_information_elements,
-		       b->information_elements,
-		       b->len_information_elements);
+		       a_ies->data, a_ies->len,
+		       b_ies->data, b_ies->len);
 }
 
-static int cmp_hidden_bss(struct cfg80211_bss *a,
-		   struct cfg80211_bss *b)
+static int cmp_hidden_bss(struct cfg80211_bss *a, struct cfg80211_bss *b)
 {
+	const struct cfg80211_bss_ies *a_ies, *b_ies;
 	const u8 *ie1;
 	const u8 *ie2;
 	int i;
@@ -415,17 +461,26 @@ static int cmp_hidden_bss(struct cfg80211_bss *a,
 	if (r)
 		return r;
 
-	ie1 = cfg80211_find_ie(WLAN_EID_SSID,
-			a->information_elements,
-			a->len_information_elements);
-	ie2 = cfg80211_find_ie(WLAN_EID_SSID,
-			b->information_elements,
-			b->len_information_elements);
+	a_ies = rcu_access_pointer(a->ies);
+	if (!a_ies)
+		return -1;
+	b_ies = rcu_access_pointer(b->ies);
+	if (!b_ies)
+		return 1;
+
+	ie1 = cfg80211_find_ie(WLAN_EID_SSID, a_ies->data, a_ies->len);
+	ie2 = cfg80211_find_ie(WLAN_EID_SSID, b_ies->data, b_ies->len);
 
-	/* Key comparator must use same algorithm in any rb-tree
+	/*
+	 * Key comparator must use same algorithm in any rb-tree
 	 * search function (order is important), otherwise ordering
 	 * of items in the tree is broken and search gives incorrect
-	 * results. This code uses same order as cmp_ies() does. */
+	 * results. This code uses same order as cmp_ies() does.
+	 *
+	 * Note that due to the differring behaviour with hidden SSIDs
+	 * this function only works when "b" is the tree element and
+	 * "a" is the key we're looking for.
+	 */
 
 	/* sort missing IE before (left of) present IE */
 	if (!ie1)
@@ -441,10 +496,14 @@ static int cmp_hidden_bss(struct cfg80211_bss *a,
 	if (ie1[1] != ie2[1])
 		return ie2[1] - ie1[1];
 
-	/* zeroed SSID ie is another indication of a hidden bss */
+	/*
+	 * zeroed SSID ie is another indication of a hidden bss;
+	 * if it isn't zeroed just return the regular sort value
+	 * to find the next candidate
+	 */
 	for (i = 0; i < ie2[1]; i++)
 		if (ie2[i + 2])
-			return -1;
+			return memcmp(ie1 + 2, ie2 + 2, ie1[1]);
 
 	return 0;
 }
@@ -459,6 +518,9 @@ struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
 	struct cfg80211_internal_bss *bss, *res = NULL;
 	unsigned long now = jiffies;
 
+	trace_cfg80211_get_bss(wiphy, channel, bssid, ssid, ssid_len, capa_mask,
+			       capa_val);
+
 	spin_lock_bh(&dev->bss_lock);
 
 	list_for_each_entry(bss, &dev->bss_list, list) {
@@ -480,6 +542,7 @@ struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
 	spin_unlock_bh(&dev->bss_lock);
 	if (!res)
 		return NULL;
+	trace_cfg80211_return_bss(&res->pub);
 	return &res->pub;
 }
 EXPORT_SYMBOL(cfg80211_get_bss);
@@ -566,7 +629,7 @@ rb_find_bss(struct cfg80211_registered_device *dev,
 
 static struct cfg80211_internal_bss *
 rb_find_hidden_bss(struct cfg80211_registered_device *dev,
-	    struct cfg80211_internal_bss *res)
+		   struct cfg80211_internal_bss *res)
 {
 	struct rb_node *n = dev->bss_tree.rb_node;
 	struct cfg80211_internal_bss *bss;
@@ -589,127 +652,86 @@ rb_find_hidden_bss(struct cfg80211_registered_device *dev,
 
 static void
 copy_hidden_ies(struct cfg80211_internal_bss *res,
-		 struct cfg80211_internal_bss *hidden)
+		struct cfg80211_internal_bss *hidden)
 {
-	if (unlikely(res->pub.beacon_ies))
-		return;
-	if (WARN_ON(!hidden->pub.beacon_ies))
+	const struct cfg80211_bss_ies *ies;
+
+	if (rcu_access_pointer(res->pub.beacon_ies))
 		return;
 
-	res->pub.beacon_ies = kmalloc(hidden->pub.len_beacon_ies, GFP_ATOMIC);
-	if (unlikely(!res->pub.beacon_ies))
+	ies = rcu_access_pointer(hidden->pub.beacon_ies);
+	if (WARN_ON(!ies))
 		return;
 
-	res->beacon_ies_allocated = true;
-	res->pub.len_beacon_ies = hidden->pub.len_beacon_ies;
-	memcpy(res->pub.beacon_ies, hidden->pub.beacon_ies,
-			res->pub.len_beacon_ies);
+	ies = kmemdup(ies, sizeof(*ies) + ies->len, GFP_ATOMIC);
+	if (unlikely(!ies))
+		return;
+	rcu_assign_pointer(res->pub.beacon_ies, ies);
 }
 
 static struct cfg80211_internal_bss *
 cfg80211_bss_update(struct cfg80211_registered_device *dev,
-		    struct cfg80211_internal_bss *res)
+		    struct cfg80211_internal_bss *tmp)
 {
 	struct cfg80211_internal_bss *found = NULL;
 
-	/*
-	 * The reference to "res" is donated to this function.
-	 */
-
-	if (WARN_ON(!res->pub.channel)) {
-		kref_put(&res->ref, bss_release);
+	if (WARN_ON(!tmp->pub.channel))
 		return NULL;
-	}
 
-	res->ts = jiffies;
+	tmp->ts = jiffies;
 
 	spin_lock_bh(&dev->bss_lock);
 
-	found = rb_find_bss(dev, res);
+	if (WARN_ON(!rcu_access_pointer(tmp->pub.ies))) {
+		spin_unlock_bh(&dev->bss_lock);
+		return NULL;
+	}
+
+	found = rb_find_bss(dev, tmp);
 
 	if (found) {
-		found->pub.beacon_interval = res->pub.beacon_interval;
-		found->pub.tsf = res->pub.tsf;
-		found->pub.signal = res->pub.signal;
-		found->pub.capability = res->pub.capability;
-		found->ts = res->ts;
+		found->pub.beacon_interval = tmp->pub.beacon_interval;
+		found->pub.tsf = tmp->pub.tsf;
+		found->pub.signal = tmp->pub.signal;
+		found->pub.capability = tmp->pub.capability;
+		found->ts = tmp->ts;
 
 		/* Update IEs */
-		if (res->pub.proberesp_ies) {
-			size_t used = dev->wiphy.bss_priv_size + sizeof(*res);
-			size_t ielen = res->pub.len_proberesp_ies;
-
-			if (found->pub.proberesp_ies &&
-			    !found->proberesp_ies_allocated &&
-			    ksize(found) >= used + ielen) {
-				memcpy(found->pub.proberesp_ies,
-				       res->pub.proberesp_ies, ielen);
-				found->pub.len_proberesp_ies = ielen;
-			} else {
-				u8 *ies = found->pub.proberesp_ies;
-
-				if (found->proberesp_ies_allocated)
-					ies = krealloc(ies, ielen, GFP_ATOMIC);
-				else
-					ies = kmalloc(ielen, GFP_ATOMIC);
-
-				if (ies) {
-					memcpy(ies, res->pub.proberesp_ies,
-					       ielen);
-					found->proberesp_ies_allocated = true;
-					found->pub.proberesp_ies = ies;
-					found->pub.len_proberesp_ies = ielen;
-				}
-			}
+		if (rcu_access_pointer(tmp->pub.proberesp_ies)) {
+			const struct cfg80211_bss_ies *old;
+
+			old = rcu_access_pointer(found->pub.proberesp_ies);
 
+			rcu_assign_pointer(found->pub.proberesp_ies,
+					   tmp->pub.proberesp_ies);
 			/* Override possible earlier Beacon frame IEs */
-			found->pub.information_elements =
-				found->pub.proberesp_ies;
-			found->pub.len_information_elements =
-				found->pub.len_proberesp_ies;
-		}
-		if (res->pub.beacon_ies) {
-			size_t used = dev->wiphy.bss_priv_size + sizeof(*res);
-			size_t ielen = res->pub.len_beacon_ies;
-			bool information_elements_is_beacon_ies =
-				(found->pub.information_elements ==
-				 found->pub.beacon_ies);
-
-			if (found->pub.beacon_ies &&
-			    !found->beacon_ies_allocated &&
-			    ksize(found) >= used + ielen) {
-				memcpy(found->pub.beacon_ies,
-				       res->pub.beacon_ies, ielen);
-				found->pub.len_beacon_ies = ielen;
-			} else {
-				u8 *ies = found->pub.beacon_ies;
-
-				if (found->beacon_ies_allocated)
-					ies = krealloc(ies, ielen, GFP_ATOMIC);
-				else
-					ies = kmalloc(ielen, GFP_ATOMIC);
-
-				if (ies) {
-					memcpy(ies, res->pub.beacon_ies,
-					       ielen);
-					found->beacon_ies_allocated = true;
-					found->pub.beacon_ies = ies;
-					found->pub.len_beacon_ies = ielen;
-				}
-			}
+			rcu_assign_pointer(found->pub.ies,
+					   tmp->pub.proberesp_ies);
+			if (old)
+				kfree_rcu((struct cfg80211_bss_ies *)old,
+					  rcu_head);
+		} else if (rcu_access_pointer(tmp->pub.beacon_ies)) {
+			const struct cfg80211_bss_ies *old, *ies;
+
+			old = rcu_access_pointer(found->pub.beacon_ies);
+			ies = rcu_access_pointer(found->pub.ies);
+
+			rcu_assign_pointer(found->pub.beacon_ies,
+					   tmp->pub.beacon_ies);
 
 			/* Override IEs if they were from a beacon before */
-			if (information_elements_is_beacon_ies) {
-				found->pub.information_elements =
-					found->pub.beacon_ies;
-				found->pub.len_information_elements =
-					found->pub.len_beacon_ies;
-			}
-		}
+			if (old == ies)
+				rcu_assign_pointer(found->pub.ies,
+						   tmp->pub.beacon_ies);
 
-		kref_put(&res->ref, bss_release);
+			if (old)
+				kfree_rcu((struct cfg80211_bss_ies *)old,
+					  rcu_head);
+		}
 	} else {
+		struct cfg80211_internal_bss *new;
 		struct cfg80211_internal_bss *hidden;
+		struct cfg80211_bss_ies *ies;
 
 		/* First check if the beacon is a probe response from
 		 * a hidden bss. If so, copy beacon ies (with nullified
@@ -720,14 +742,32 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
 		/* TODO: The code is not trying to update existing probe
 		 * response bss entries when beacon ies are
 		 * getting changed. */
-		hidden = rb_find_hidden_bss(dev, res);
+		hidden = rb_find_hidden_bss(dev, tmp);
 		if (hidden)
-			copy_hidden_ies(res, hidden);
-
-		/* this "consumes" the reference */
-		list_add_tail(&res->list, &dev->bss_list);
-		rb_insert_bss(dev, res);
-		found = res;
+			copy_hidden_ies(tmp, hidden);
+
+		/*
+		 * create a copy -- the "res" variable that is passed in
+		 * is allocated on the stack since it's not needed in the
+		 * more common case of an update
+		 */
+		new = kzalloc(sizeof(*new) + dev->wiphy.bss_priv_size,
+			      GFP_ATOMIC);
+		if (!new) {
+			ies = (void *)rcu_dereference(tmp->pub.beacon_ies);
+			if (ies)
+				kfree_rcu(ies, rcu_head);
+			ies = (void *)rcu_dereference(tmp->pub.proberesp_ies);
+			if (ies)
+				kfree_rcu(ies, rcu_head);
+			spin_unlock_bh(&dev->bss_lock);
+			return NULL;
+		}
+		memcpy(new, tmp, sizeof(*new));
+		kref_init(&new->ref);
+		list_add_tail(&new->list, &dev->bss_list);
+		rb_insert_bss(dev, new);
+		found = new;
 	}
 
 	dev->bss_generation++;
@@ -737,6 +777,38 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
 	return found;
 }
 
+static struct ieee80211_channel *
+cfg80211_get_bss_channel(struct wiphy *wiphy, const u8 *ie, size_t ielen,
+			 struct ieee80211_channel *channel)
+{
+	const u8 *tmp;
+	u32 freq;
+	int channel_number = -1;
+
+	tmp = cfg80211_find_ie(WLAN_EID_DS_PARAMS, ie, ielen);
+	if (tmp && tmp[1] == 1) {
+		channel_number = tmp[2];
+	} else {
+		tmp = cfg80211_find_ie(WLAN_EID_HT_OPERATION, ie, ielen);
+		if (tmp && tmp[1] >= sizeof(struct ieee80211_ht_operation)) {
+			struct ieee80211_ht_operation *htop = (void *)(tmp + 2);
+
+			channel_number = htop->primary_chan;
+		}
+	}
+
+	if (channel_number < 0)
+		return channel;
+
+	freq = ieee80211_channel_to_frequency(channel_number, channel->band);
+	channel = ieee80211_get_channel(wiphy, freq);
+	if (!channel)
+		return NULL;
+	if (channel->flags & IEEE80211_CHAN_DISABLED)
+		return NULL;
+	return channel;
+}
+
 struct cfg80211_bss*
 cfg80211_inform_bss(struct wiphy *wiphy,
 		    struct ieee80211_channel *channel,
@@ -744,54 +816,54 @@ cfg80211_inform_bss(struct wiphy *wiphy,
 		    u16 beacon_interval, const u8 *ie, size_t ielen,
 		    s32 signal, gfp_t gfp)
 {
-	struct cfg80211_internal_bss *res;
-	size_t privsz;
+	struct cfg80211_bss_ies *ies;
+	struct cfg80211_internal_bss tmp = {}, *res;
 
 	if (WARN_ON(!wiphy))
 		return NULL;
 
-	privsz = wiphy->bss_priv_size;
-
 	if (WARN_ON(wiphy->signal_type == CFG80211_SIGNAL_TYPE_UNSPEC &&
 			(signal < 0 || signal > 100)))
 		return NULL;
 
-	res = kzalloc(sizeof(*res) + privsz + ielen, gfp);
-	if (!res)
+	channel = cfg80211_get_bss_channel(wiphy, ie, ielen, channel);
+	if (!channel)
 		return NULL;
 
-	memcpy(res->pub.bssid, bssid, ETH_ALEN);
-	res->pub.channel = channel;
-	res->pub.signal = signal;
-	res->pub.tsf = tsf;
-	res->pub.beacon_interval = beacon_interval;
-	res->pub.capability = capability;
+	memcpy(tmp.pub.bssid, bssid, ETH_ALEN);
+	tmp.pub.channel = channel;
+	tmp.pub.signal = signal;
+	tmp.pub.tsf = tsf;
+	tmp.pub.beacon_interval = beacon_interval;
+	tmp.pub.capability = capability;
 	/*
 	 * Since we do not know here whether the IEs are from a Beacon or Probe
 	 * Response frame, we need to pick one of the options and only use it
 	 * with the driver that does not provide the full Beacon/Probe Response
 	 * frame. Use Beacon frame pointer to avoid indicating that this should
-	 * override the information_elements pointer should we have received an
-	 * earlier indication of Probe Response data.
+	 * override the iies pointer should we have received an earlier
+	 * indication of Probe Response data.
 	 *
 	 * The initial buffer for the IEs is allocated with the BSS entry and
 	 * is located after the private area.
 	 */
-	res->pub.beacon_ies = (u8 *)res + sizeof(*res) + privsz;
-	memcpy(res->pub.beacon_ies, ie, ielen);
-	res->pub.len_beacon_ies = ielen;
-	res->pub.information_elements = res->pub.beacon_ies;
-	res->pub.len_information_elements = res->pub.len_beacon_ies;
+	ies = kmalloc(sizeof(*ies) + ielen, gfp);
+	if (!ies)
+		return NULL;
+	ies->len = ielen;
+	memcpy(ies->data, ie, ielen);
 
-	kref_init(&res->ref);
+	rcu_assign_pointer(tmp.pub.beacon_ies, ies);
+	rcu_assign_pointer(tmp.pub.ies, ies);
 
-	res = cfg80211_bss_update(wiphy_to_dev(wiphy), res);
+	res = cfg80211_bss_update(wiphy_to_dev(wiphy), &tmp);
 	if (!res)
 		return NULL;
 
 	if (res->pub.capability & WLAN_CAPABILITY_ESS)
 		regulatory_hint_found_beacon(wiphy, channel, gfp);
 
+	trace_cfg80211_return_bss(&res->pub);
 	/* cfg80211_bss_update gives us a referenced result */
 	return &res->pub;
 }
@@ -803,10 +875,15 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 			  struct ieee80211_mgmt *mgmt, size_t len,
 			  s32 signal, gfp_t gfp)
 {
-	struct cfg80211_internal_bss *res;
+	struct cfg80211_internal_bss tmp = {}, *res;
+	struct cfg80211_bss_ies *ies;
 	size_t ielen = len - offsetof(struct ieee80211_mgmt,
 				      u.probe_resp.variable);
-	size_t privsz;
+
+	BUILD_BUG_ON(offsetof(struct ieee80211_mgmt, u.probe_resp.variable) !=
+			offsetof(struct ieee80211_mgmt, u.beacon.variable));
+
+	trace_cfg80211_inform_bss_frame(wiphy, channel, mgmt, len, signal);
 
 	if (WARN_ON(!mgmt))
 		return NULL;
@@ -821,46 +898,38 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 	if (WARN_ON(len < offsetof(struct ieee80211_mgmt, u.probe_resp.variable)))
 		return NULL;
 
-	privsz = wiphy->bss_priv_size;
-
-	res = kzalloc(sizeof(*res) + privsz + ielen, gfp);
-	if (!res)
+	channel = cfg80211_get_bss_channel(wiphy, mgmt->u.beacon.variable,
+					   ielen, channel);
+	if (!channel)
 		return NULL;
 
-	memcpy(res->pub.bssid, mgmt->bssid, ETH_ALEN);
-	res->pub.channel = channel;
-	res->pub.signal = signal;
-	res->pub.tsf = le64_to_cpu(mgmt->u.probe_resp.timestamp);
-	res->pub.beacon_interval = le16_to_cpu(mgmt->u.probe_resp.beacon_int);
-	res->pub.capability = le16_to_cpu(mgmt->u.probe_resp.capab_info);
-	/*
-	 * The initial buffer for the IEs is allocated with the BSS entry and
-	 * is located after the private area.
-	 */
-	if (ieee80211_is_probe_resp(mgmt->frame_control)) {
-		res->pub.proberesp_ies = (u8 *) res + sizeof(*res) + privsz;
-		memcpy(res->pub.proberesp_ies, mgmt->u.probe_resp.variable,
-		       ielen);
-		res->pub.len_proberesp_ies = ielen;
-		res->pub.information_elements = res->pub.proberesp_ies;
-		res->pub.len_information_elements = res->pub.len_proberesp_ies;
-	} else {
-		res->pub.beacon_ies = (u8 *) res + sizeof(*res) + privsz;
-		memcpy(res->pub.beacon_ies, mgmt->u.beacon.variable, ielen);
-		res->pub.len_beacon_ies = ielen;
-		res->pub.information_elements = res->pub.beacon_ies;
-		res->pub.len_information_elements = res->pub.len_beacon_ies;
-	}
-
-	kref_init(&res->ref);
+	ies = kmalloc(sizeof(*ies) + ielen, gfp);
+	if (!ies)
+		return NULL;
+	ies->len = ielen;
+	memcpy(ies->data, mgmt->u.probe_resp.variable, ielen);
 
-	res = cfg80211_bss_update(wiphy_to_dev(wiphy), res);
+	if (ieee80211_is_probe_resp(mgmt->frame_control))
+		rcu_assign_pointer(tmp.pub.proberesp_ies, ies);
+	else
+		rcu_assign_pointer(tmp.pub.beacon_ies, ies);
+	rcu_assign_pointer(tmp.pub.ies, ies);
+	
+	memcpy(tmp.pub.bssid, mgmt->bssid, ETH_ALEN);
+	tmp.pub.channel = channel;
+	tmp.pub.signal = signal;
+	tmp.pub.tsf = le64_to_cpu(mgmt->u.probe_resp.timestamp);
+	tmp.pub.beacon_interval = le16_to_cpu(mgmt->u.probe_resp.beacon_int);
+	tmp.pub.capability = le16_to_cpu(mgmt->u.probe_resp.capab_info);
+
+	res = cfg80211_bss_update(wiphy_to_dev(wiphy), &tmp);
 	if (!res)
 		return NULL;
 
 	if (res->pub.capability & WLAN_CAPABILITY_ESS)
 		regulatory_hint_found_beacon(wiphy, channel, gfp);
 
+	trace_cfg80211_return_bss(&res->pub);
 	/* cfg80211_bss_update gives us a referenced result */
 	return &res->pub;
 }
@@ -962,6 +1031,7 @@ int cfg80211_wext_siwscan(struct net_device *dev,
 	creq->ssids = (void *)&creq->channels[n_channels];
 	creq->n_channels = n_channels;
 	creq->n_ssids = 1;
+	creq->scan_start = jiffies;
 
 	/* translate "Scan on frequencies" request */
 	i = 0;
@@ -1026,7 +1096,7 @@ int cfg80211_wext_siwscan(struct net_device *dev,
 			creq->rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
 
 	rdev->scan_req = creq;
-	err = rdev->ops->scan(wiphy, creq);
+	err = rdev_scan(rdev, creq);
 	if (err) {
 		rdev->scan_req = NULL;
 		/* creq will be freed below */
@@ -1044,22 +1114,21 @@ int cfg80211_wext_siwscan(struct net_device *dev,
 EXPORT_SYMBOL_GPL(cfg80211_wext_siwscan);
 
 static void ieee80211_scan_add_ies(struct iw_request_info *info,
-				   struct cfg80211_bss *bss,
+				   const struct cfg80211_bss_ies *ies,
 				   char **current_ev, char *end_buf)
 {
-	u8 *pos, *end, *next;
+	const u8 *pos, *end, *next;
 	struct iw_event iwe;
 
-	if (!bss->information_elements ||
-	    !bss->len_information_elements)
+	if (!ies)
 		return;
 
 	/*
 	 * If needed, fragment the IEs buffer (at IE boundaries) into short
 	 * enough fragments to fit into IW_GENERIC_IE_MAX octet messages.
 	 */
-	pos = bss->information_elements;
-	end = pos + bss->len_information_elements;
+	pos = ies->data;
+	end = pos + ies->len;
 
 	while (end - pos > IW_GENERIC_IE_MAX) {
 		next = pos + 2 + pos[1];
@@ -1070,7 +1139,8 @@ static void ieee80211_scan_add_ies(struct iw_request_info *info,
 		iwe.cmd = IWEVGENIE;
 		iwe.u.data.length = next - pos;
 		*current_ev = iwe_stream_add_point(info, *current_ev,
-						   end_buf, &iwe, pos);
+						   end_buf, &iwe,
+						   (void *)pos);
 
 		pos = next;
 	}
@@ -1080,7 +1150,8 @@ static void ieee80211_scan_add_ies(struct iw_request_info *info,
 		iwe.cmd = IWEVGENIE;
 		iwe.u.data.length = end - pos;
 		*current_ev = iwe_stream_add_point(info, *current_ev,
-						   end_buf, &iwe, pos);
+						   end_buf, &iwe,
+						   (void *)pos);
 	}
 }
 
@@ -1099,10 +1170,11 @@ ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
 	      struct cfg80211_internal_bss *bss, char *current_ev,
 	      char *end_buf)
 {
+	const struct cfg80211_bss_ies *ies;
 	struct iw_event iwe;
+	const u8 *ie;
 	u8 *buf, *cfg, *p;
-	u8 *ie = bss->pub.information_elements;
-	int rem = bss->pub.len_information_elements, i, sig;
+	int rem, i, sig;
 	bool ismesh = false;
 
 	memset(&iwe, 0, sizeof(iwe));
@@ -1167,7 +1239,17 @@ ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
 	current_ev = iwe_stream_add_point(info, current_ev, end_buf,
 					  &iwe, "");
 
-	while (rem >= 2) {
+	rcu_read_lock();
+	ies = rcu_dereference(bss->pub.ies);
+	if (ies) {
+		rem = ies->len;
+		ie = ies->data;
+	} else {
+		rem = 0;
+		ie = NULL;
+	}
+
+	while (ies && rem >= 2) {
 		/* invalid data */
 		if (ie[1] > rem - 2)
 			break;
@@ -1179,7 +1261,7 @@ ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
 			iwe.u.data.length = ie[1];
 			iwe.u.data.flags = 1;
 			current_ev = iwe_stream_add_point(info, current_ev, end_buf,
-							  &iwe, ie + 2);
+							  &iwe, (u8 *)ie + 2);
 			break;
 		case WLAN_EID_MESH_ID:
 			memset(&iwe, 0, sizeof(iwe));
@@ -1187,7 +1269,7 @@ ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
 			iwe.u.data.length = ie[1];
 			iwe.u.data.flags = 1;
 			current_ev = iwe_stream_add_point(info, current_ev, end_buf,
-							  &iwe, ie + 2);
+							  &iwe, (u8 *)ie + 2);
 			break;
 		case WLAN_EID_MESH_CONFIG:
 			ismesh = true;
@@ -1196,7 +1278,7 @@ ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
 			buf = kmalloc(50, GFP_ATOMIC);
 			if (!buf)
 				break;
-			cfg = ie + 2;
+			cfg = (u8 *)ie + 2;
 			memset(&iwe, 0, sizeof(iwe));
 			iwe.cmd = IWEVCUSTOM;
 			sprintf(buf, "Mesh Network Path Selection Protocol ID: "
@@ -1294,7 +1376,8 @@ ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
 		kfree(buf);
 	}
 
-	ieee80211_scan_add_ies(info, &bss->pub, &current_ev, end_buf);
+	ieee80211_scan_add_ies(info, ies, &current_ev, end_buf);
+	rcu_read_unlock();
 
 	return current_ev;
 }
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 6f39cb8..f2431e4 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -16,6 +16,7 @@
 #include <net/rtnetlink.h>
 #include "nl80211.h"
 #include "reg.h"
+#include "rdev-ops.h"
 
 struct cfg80211_conn {
 	struct cfg80211_connect_params params;
@@ -138,10 +139,11 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev)
 
 	request->wdev = wdev;
 	request->wiphy = &rdev->wiphy;
+	request->scan_start = jiffies;
 
 	rdev->scan_req = request;
 
-	err = rdev->ops->scan(wdev->wiphy, request);
+	err = rdev_scan(rdev, request);
 	if (!err) {
 		wdev->conn->state = CFG80211_CONN_SCANNING;
 		nl80211_send_scan_start(rdev, wdev);
@@ -179,7 +181,7 @@ static int cfg80211_conn_do_work(struct wireless_dev *wdev)
 					    params->ssid, params->ssid_len,
 					    NULL, 0,
 					    params->key, params->key_len,
-					    params->key_idx);
+					    params->key_idx, NULL, 0);
 	case CFG80211_CONN_ASSOCIATE_NEXT:
 		BUG_ON(!rdev->ops->assoc);
 		wdev->conn->state = CFG80211_CONN_ASSOCIATING;
@@ -415,7 +417,7 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 			       struct cfg80211_bss *bss)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	u8 *country_ie;
+	const u8 *country_ie;
 #ifdef CONFIG_CFG80211_WEXT
 	union iwreq_data wrqu;
 #endif
@@ -499,7 +501,15 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 	wdev->sme_state = CFG80211_SME_CONNECTED;
 	cfg80211_upload_connect_keys(wdev);
 
-	country_ie = (u8 *) ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
+	rcu_read_lock();
+	country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
+	if (!country_ie) {
+		rcu_read_unlock();
+		return;
+	}
+
+	country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC);
+	rcu_read_unlock();
 
 	if (!country_ie)
 		return;
@@ -513,6 +523,7 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 			    bss->channel->band,
 			    country_ie + 2,
 			    country_ie[1]);
+	kfree(country_ie);
 }
 
 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
@@ -716,7 +727,7 @@ void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
 	 */
 	if (rdev->ops->del_key)
 		for (i = 0; i < 6; i++)
-			rdev->ops->del_key(wdev->wiphy, dev, i, false, NULL);
+			rdev_del_key(rdev, dev, i, false, NULL);
 
 #ifdef CONFIG_CFG80211_WEXT
 	memset(&wrqu, 0, sizeof(wrqu));
@@ -892,7 +903,7 @@ int __cfg80211_connect(struct cfg80211_registered_device *rdev,
 	} else {
 		wdev->sme_state = CFG80211_SME_CONNECTING;
 		wdev->connect_keys = connkeys;
-		err = rdev->ops->connect(&rdev->wiphy, dev, connect);
+		err = rdev_connect(rdev, dev, connect);
 		if (err) {
 			wdev->connect_keys = NULL;
 			wdev->sme_state = CFG80211_SME_IDLE;
@@ -964,7 +975,7 @@ int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
 		if (err)
 			return err;
 	} else {
-		err = rdev->ops->disconnect(&rdev->wiphy, dev, reason);
+		err = rdev_disconnect(rdev, dev, reason);
 		if (err)
 			return err;
 	}
diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index ff57459..9bf6d5e 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -16,6 +16,7 @@
 #include <net/cfg80211.h>
 #include "sysfs.h"
 #include "core.h"
+#include "rdev-ops.h"
 
 static inline struct cfg80211_registered_device *dev_to_rdev(
 	struct device *dev)
@@ -94,7 +95,7 @@ static int wiphy_suspend(struct device *dev, pm_message_t state)
 	if (rdev->ops->suspend) {
 		rtnl_lock();
 		if (rdev->wiphy.registered)
-			ret = rdev->ops->suspend(&rdev->wiphy, rdev->wowlan);
+			ret = rdev_suspend(rdev);
 		rtnl_unlock();
 	}
 
@@ -114,7 +115,7 @@ static int wiphy_resume(struct device *dev)
 	if (rdev->ops->resume) {
 		rtnl_lock();
 		if (rdev->wiphy.registered)
-			ret = rdev->ops->resume(&rdev->wiphy);
+			ret = rdev_resume(rdev);
 		rtnl_unlock();
 	}
 
diff --git a/net/wireless/trace.c b/net/wireless/trace.c
new file mode 100644
index 0000000..95f997f
--- /dev/null
+++ b/net/wireless/trace.c
@@ -0,0 +1,7 @@
+#include <linux/module.h>
+
+#ifndef __CHECKER__
+#define CREATE_TRACE_POINTS
+#include "trace.h"
+
+#endif
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
new file mode 100644
index 0000000..2134576
--- /dev/null
+++ b/net/wireless/trace.h
@@ -0,0 +1,2324 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM cfg80211
+
+#if !defined(__RDEV_OPS_TRACE) || defined(TRACE_HEADER_MULTI_READ)
+#define __RDEV_OPS_TRACE
+
+#include <linux/tracepoint.h>
+
+#include <linux/rtnetlink.h>
+#include <net/cfg80211.h>
+#include "core.h"
+
+#define MAC_ENTRY(entry_mac) __array(u8, entry_mac, ETH_ALEN)
+#define MAC_ASSIGN(entry_mac, given_mac) do {			     \
+	if (given_mac)						     \
+		memcpy(__entry->entry_mac, given_mac, ETH_ALEN);     \
+	else							     \
+		memset(__entry->entry_mac, 0, ETH_ALEN);	     \
+	} while (0)
+#define MAC_PR_FMT "%pM"
+#define MAC_PR_ARG(entry_mac) (__entry->entry_mac)
+
+#define MAXNAME		32
+#define WIPHY_ENTRY	__array(char, wiphy_name, 32)
+#define WIPHY_ASSIGN	strlcpy(__entry->wiphy_name, wiphy_name(wiphy), MAXNAME)
+#define WIPHY_PR_FMT	"%s"
+#define WIPHY_PR_ARG	__entry->wiphy_name
+
+#define WDEV_ENTRY	__field(u32, id)
+#define WDEV_ASSIGN	(__entry->id) = (wdev ? wdev->identifier : 0)
+#define WDEV_PR_FMT	"wdev(%u)"
+#define WDEV_PR_ARG	(__entry->id)
+
+#define NETDEV_ENTRY	__array(char, name, IFNAMSIZ) \
+			__field(int, ifindex)
+#define NETDEV_ASSIGN					       \
+	do {						       \
+		memcpy(__entry->name, netdev->name, IFNAMSIZ); \
+		(__entry->ifindex) = (netdev->ifindex);	       \
+	} while (0)
+#define NETDEV_PR_FMT	"netdev:%s(%d)"
+#define NETDEV_PR_ARG	__entry->name, __entry->ifindex
+
+#define MESH_CFG_ENTRY __field(u16, dot11MeshRetryTimeout)		   \
+		       __field(u16, dot11MeshConfirmTimeout)		   \
+		       __field(u16, dot11MeshHoldingTimeout)		   \
+		       __field(u16, dot11MeshMaxPeerLinks)		   \
+		       __field(u8, dot11MeshMaxRetries)			   \
+		       __field(u8, dot11MeshTTL)			   \
+		       __field(u8, element_ttl)				   \
+		       __field(bool, auto_open_plinks)			   \
+		       __field(u32, dot11MeshNbrOffsetMaxNeighbor)	   \
+		       __field(u8, dot11MeshHWMPmaxPREQretries)		   \
+		       __field(u32, path_refresh_time)			   \
+		       __field(u32, dot11MeshHWMPactivePathTimeout)	   \
+		       __field(u16, min_discovery_timeout)		   \
+		       __field(u16, dot11MeshHWMPpreqMinInterval)	   \
+		       __field(u16, dot11MeshHWMPperrMinInterval)	   \
+		       __field(u16, dot11MeshHWMPnetDiameterTraversalTime) \
+		       __field(u8, dot11MeshHWMPRootMode)		   \
+		       __field(u16, dot11MeshHWMPRannInterval)		   \
+		       __field(bool, dot11MeshGateAnnouncementProtocol)	   \
+		       __field(bool, dot11MeshForwarding)		   \
+		       __field(s32, rssi_threshold)			   \
+		       __field(u16, ht_opmode)				   \
+		       __field(u32, dot11MeshHWMPactivePathToRootTimeout)  \
+		       __field(u16, dot11MeshHWMProotInterval)		   \
+		       __field(u16, dot11MeshHWMPconfirmationInterval)
+#define MESH_CFG_ASSIGN							      \
+	do {								      \
+		__entry->dot11MeshRetryTimeout = conf->dot11MeshRetryTimeout; \
+		__entry->dot11MeshConfirmTimeout =			      \
+				conf->dot11MeshConfirmTimeout;		      \
+		__entry->dot11MeshHoldingTimeout =			      \
+				conf->dot11MeshHoldingTimeout;		      \
+		__entry->dot11MeshMaxPeerLinks = conf->dot11MeshMaxPeerLinks; \
+		__entry->dot11MeshMaxRetries = conf->dot11MeshMaxRetries;     \
+		__entry->dot11MeshTTL = conf->dot11MeshTTL;		      \
+		__entry->element_ttl = conf->element_ttl;		      \
+		__entry->auto_open_plinks = conf->auto_open_plinks;	      \
+		__entry->dot11MeshNbrOffsetMaxNeighbor =		      \
+				conf->dot11MeshNbrOffsetMaxNeighbor;	      \
+		__entry->dot11MeshHWMPmaxPREQretries =			      \
+				conf->dot11MeshHWMPmaxPREQretries;	      \
+		__entry->path_refresh_time = conf->path_refresh_time;	      \
+		__entry->dot11MeshHWMPactivePathTimeout =		      \
+				conf->dot11MeshHWMPactivePathTimeout;	      \
+		__entry->min_discovery_timeout = conf->min_discovery_timeout; \
+		__entry->dot11MeshHWMPpreqMinInterval =			      \
+				conf->dot11MeshHWMPpreqMinInterval;	      \
+		__entry->dot11MeshHWMPperrMinInterval =			      \
+				conf->dot11MeshHWMPperrMinInterval;	      \
+		__entry->dot11MeshHWMPnetDiameterTraversalTime =	      \
+				conf->dot11MeshHWMPnetDiameterTraversalTime;  \
+		__entry->dot11MeshHWMPRootMode = conf->dot11MeshHWMPRootMode; \
+		__entry->dot11MeshHWMPRannInterval =			      \
+				conf->dot11MeshHWMPRannInterval;	      \
+		__entry->dot11MeshGateAnnouncementProtocol =		      \
+				conf->dot11MeshGateAnnouncementProtocol;      \
+		__entry->dot11MeshForwarding = conf->dot11MeshForwarding;     \
+		__entry->rssi_threshold = conf->rssi_threshold;		      \
+		__entry->ht_opmode = conf->ht_opmode;			      \
+		__entry->dot11MeshHWMPactivePathToRootTimeout =		      \
+				conf->dot11MeshHWMPactivePathToRootTimeout;   \
+		__entry->dot11MeshHWMProotInterval =			      \
+				conf->dot11MeshHWMProotInterval;	      \
+		__entry->dot11MeshHWMPconfirmationInterval =		      \
+				conf->dot11MeshHWMPconfirmationInterval;      \
+	} while (0)
+
+#define CHAN_ENTRY __field(enum ieee80211_band, band) \
+		   __field(u16, center_freq)
+#define CHAN_ASSIGN(chan)					  \
+	do {							  \
+		if (chan) {					  \
+			__entry->band = chan->band;		  \
+			__entry->center_freq = chan->center_freq; \
+		} else {					  \
+			__entry->band = 0;			  \
+			__entry->center_freq = 0;		  \
+		}						  \
+	} while (0)
+#define CHAN_PR_FMT "band: %d, freq: %u"
+#define CHAN_PR_ARG __entry->band, __entry->center_freq
+
+#define CHAN_DEF_ENTRY __field(enum ieee80211_band, band)		\
+		       __field(u32, control_freq)			\
+		       __field(u32, width)				\
+		       __field(u32, center_freq1)			\
+		       __field(u32, center_freq2)
+#define CHAN_DEF_ASSIGN(chandef)					\
+	do {								\
+		if ((chandef) && (chandef)->chan) {			\
+			__entry->band = (chandef)->chan->band;		\
+			__entry->control_freq =				\
+				(chandef)->chan->center_freq;		\
+			__entry->width = (chandef)->width;		\
+			__entry->center_freq1 = (chandef)->center_freq1;\
+			__entry->center_freq2 = (chandef)->center_freq2;\
+		} else {						\
+			__entry->band = 0;				\
+			__entry->control_freq = 0;			\
+			__entry->width = 0;				\
+			__entry->center_freq1 = 0;			\
+			__entry->center_freq2 = 0;			\
+		}							\
+	} while (0)
+#define CHAN_DEF_PR_FMT							\
+	"band: %d, control freq: %u, width: %d, cf1: %u, cf2: %u"
+#define CHAN_DEF_PR_ARG __entry->band, __entry->control_freq,		\
+			__entry->width, __entry->center_freq1,		\
+			__entry->center_freq2
+
+#define SINFO_ENTRY __field(int, generation)	    \
+		    __field(u32, connected_time)    \
+		    __field(u32, inactive_time)	    \
+		    __field(u32, rx_bytes)	    \
+		    __field(u32, tx_bytes)	    \
+		    __field(u32, rx_packets)	    \
+		    __field(u32, tx_packets)	    \
+		    __field(u32, tx_retries)	    \
+		    __field(u32, tx_failed)	    \
+		    __field(u32, rx_dropped_misc)   \
+		    __field(u32, beacon_loss_count) \
+		    __field(u16, llid)		    \
+		    __field(u16, plid)		    \
+		    __field(u8, plink_state)
+#define SINFO_ASSIGN						       \
+	do {							       \
+		__entry->generation = sinfo->generation;	       \
+		__entry->connected_time = sinfo->connected_time;       \
+		__entry->inactive_time = sinfo->inactive_time;	       \
+		__entry->rx_bytes = sinfo->rx_bytes;		       \
+		__entry->tx_bytes = sinfo->tx_bytes;		       \
+		__entry->rx_packets = sinfo->rx_packets;	       \
+		__entry->tx_packets = sinfo->tx_packets;	       \
+		__entry->tx_retries = sinfo->tx_retries;	       \
+		__entry->tx_failed = sinfo->tx_failed;		       \
+		__entry->rx_dropped_misc = sinfo->rx_dropped_misc;     \
+		__entry->beacon_loss_count = sinfo->beacon_loss_count; \
+		__entry->llid = sinfo->llid;			       \
+		__entry->plid = sinfo->plid;			       \
+		__entry->plink_state = sinfo->plink_state;	       \
+	} while (0)
+
+#define BOOL_TO_STR(bo) (bo) ? "true" : "false"
+
+/*************************************************************
+ *			rdev->ops traces		     *
+ *************************************************************/
+
+TRACE_EVENT(rdev_suspend,
+	TP_PROTO(struct wiphy *wiphy, struct cfg80211_wowlan *wow),
+	TP_ARGS(wiphy, wow),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(bool, any)
+		__field(bool, disconnect)
+		__field(bool, magic_pkt)
+		__field(bool, gtk_rekey_failure)
+		__field(bool, eap_identity_req)
+		__field(bool, four_way_handshake)
+		__field(bool, rfkill_release)
+		__field(bool, valid_wow)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		if (wow) {
+			__entry->any = wow->any;
+			__entry->disconnect = wow->disconnect;
+			__entry->magic_pkt = wow->magic_pkt;
+			__entry->gtk_rekey_failure = wow->gtk_rekey_failure;
+			__entry->eap_identity_req = wow->eap_identity_req;
+			__entry->four_way_handshake = wow->four_way_handshake;
+			__entry->rfkill_release = wow->rfkill_release;
+			__entry->valid_wow = true;
+		} else {
+			__entry->valid_wow = false;
+		}
+	),
+	TP_printk(WIPHY_PR_FMT ", wow%s - any: %d, disconnect: %d, "
+		  "magic pkt: %d, gtk rekey failure: %d, eap identify req: %d, "
+		  "four way handshake: %d, rfkill release: %d.",
+		  WIPHY_PR_ARG, __entry->valid_wow ? "" : "(Not configured!)",
+		  __entry->any, __entry->disconnect, __entry->magic_pkt,
+		  __entry->gtk_rekey_failure, __entry->eap_identity_req,
+		  __entry->four_way_handshake, __entry->rfkill_release)
+);
+
+TRACE_EVENT(rdev_return_int,
+	TP_PROTO(struct wiphy *wiphy, int ret),
+	TP_ARGS(wiphy, ret),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(int, ret)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		__entry->ret = ret;
+	),
+	TP_printk(WIPHY_PR_FMT ", returned: %d", WIPHY_PR_ARG, __entry->ret)
+);
+
+TRACE_EVENT(rdev_scan,
+	TP_PROTO(struct wiphy *wiphy, struct cfg80211_scan_request *request),
+	TP_ARGS(wiphy, request),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+	),
+	TP_printk(WIPHY_PR_FMT, WIPHY_PR_ARG)
+);
+
+DECLARE_EVENT_CLASS(wiphy_only_evt,
+	TP_PROTO(struct wiphy *wiphy),
+	TP_ARGS(wiphy),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+	),
+	TP_printk(WIPHY_PR_FMT, WIPHY_PR_ARG)
+);
+
+DEFINE_EVENT(wiphy_only_evt, rdev_resume,
+	TP_PROTO(struct wiphy *wiphy),
+	TP_ARGS(wiphy)
+);
+
+DEFINE_EVENT(wiphy_only_evt, rdev_return_void,
+	TP_PROTO(struct wiphy *wiphy),
+	TP_ARGS(wiphy)
+);
+
+DEFINE_EVENT(wiphy_only_evt, rdev_get_ringparam,
+	TP_PROTO(struct wiphy *wiphy),
+	TP_ARGS(wiphy)
+);
+
+DEFINE_EVENT(wiphy_only_evt, rdev_get_antenna,
+	TP_PROTO(struct wiphy *wiphy),
+	TP_ARGS(wiphy)
+);
+
+DEFINE_EVENT(wiphy_only_evt, rdev_rfkill_poll,
+	TP_PROTO(struct wiphy *wiphy),
+	TP_ARGS(wiphy)
+);
+
+DECLARE_EVENT_CLASS(wiphy_enabled_evt,
+	TP_PROTO(struct wiphy *wiphy, bool enabled),
+	TP_ARGS(wiphy, enabled),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(bool, enabled)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		__entry->enabled = enabled;
+	),
+	TP_printk(WIPHY_PR_FMT ", %senabled ",
+		  WIPHY_PR_ARG, __entry->enabled ? "" : "not ")
+);
+
+DEFINE_EVENT(wiphy_enabled_evt, rdev_set_wakeup,
+	TP_PROTO(struct wiphy *wiphy, bool enabled),
+	TP_ARGS(wiphy, enabled)
+);
+
+TRACE_EVENT(rdev_add_virtual_intf,
+	TP_PROTO(struct wiphy *wiphy, char *name, enum nl80211_iftype type),
+	TP_ARGS(wiphy, name, type),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__string(vir_intf_name, name ? name : "<noname>")
+		__field(enum nl80211_iftype, type)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		__assign_str(vir_intf_name, name ? name : "<noname>");
+		__entry->type = type;
+	),
+	TP_printk(WIPHY_PR_FMT ", virtual intf name: %s, type: %d",
+		  WIPHY_PR_ARG, __get_str(vir_intf_name), __entry->type)
+);
+
+DECLARE_EVENT_CLASS(wiphy_wdev_evt,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
+	TP_ARGS(wiphy, wdev),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		WDEV_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		WDEV_ASSIGN;
+	),
+	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT, WIPHY_PR_ARG, WDEV_PR_ARG)
+);
+
+DEFINE_EVENT(wiphy_wdev_evt, rdev_return_wdev,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
+	TP_ARGS(wiphy, wdev)
+);
+
+DEFINE_EVENT(wiphy_wdev_evt, rdev_del_virtual_intf,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
+	TP_ARGS(wiphy, wdev)
+);
+
+TRACE_EVENT(rdev_change_virtual_intf,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 enum nl80211_iftype type),
+	TP_ARGS(wiphy, netdev, type),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(enum nl80211_iftype, type)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->type = type;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", type: %d",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->type)
+);
+
+DECLARE_EVENT_CLASS(key_handle,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
+		 bool pairwise, const u8 *mac_addr),
+	TP_ARGS(wiphy, netdev, key_index, pairwise, mac_addr),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(mac_addr)
+		__field(u8, key_index)
+		__field(bool, pairwise)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(mac_addr, mac_addr);
+		__entry->key_index = key_index;
+		__entry->pairwise = pairwise;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", key_index: %u, pairwise: %s, mac addr: " MAC_PR_FMT,
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->key_index,
+		  BOOL_TO_STR(__entry->pairwise), MAC_PR_ARG(mac_addr))
+);
+
+DEFINE_EVENT(key_handle, rdev_add_key,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
+		 bool pairwise, const u8 *mac_addr),
+	TP_ARGS(wiphy, netdev, key_index, pairwise, mac_addr)
+);
+
+DEFINE_EVENT(key_handle, rdev_get_key,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
+		 bool pairwise, const u8 *mac_addr),
+	TP_ARGS(wiphy, netdev, key_index, pairwise, mac_addr)
+);
+
+DEFINE_EVENT(key_handle, rdev_del_key,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
+		 bool pairwise, const u8 *mac_addr),
+	TP_ARGS(wiphy, netdev, key_index, pairwise, mac_addr)
+);
+
+TRACE_EVENT(rdev_set_default_key,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
+		 bool unicast, bool multicast),
+	TP_ARGS(wiphy, netdev, key_index, unicast, multicast),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(u8, key_index)
+		__field(bool, unicast)
+		__field(bool, multicast)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->key_index = key_index;
+		__entry->unicast = unicast;
+		__entry->multicast = multicast;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", key index: %u, unicast: %s, multicast: %s",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->key_index,
+		  BOOL_TO_STR(__entry->unicast),
+		  BOOL_TO_STR(__entry->multicast))
+);
+
+TRACE_EVENT(rdev_set_default_mgmt_key,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 key_index),
+	TP_ARGS(wiphy, netdev, key_index),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(u8, key_index)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->key_index = key_index;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", key index: %u",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->key_index)
+);
+
+TRACE_EVENT(rdev_start_ap,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_ap_settings *settings),
+	TP_ARGS(wiphy, netdev, settings),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		CHAN_DEF_ENTRY
+		__field(int, beacon_interval)
+		__field(int, dtim_period)
+		__array(char, ssid, IEEE80211_MAX_SSID_LEN + 1)
+		__field(enum nl80211_hidden_ssid, hidden_ssid)
+		__field(u32, wpa_ver)
+		__field(bool, privacy)
+		__field(enum nl80211_auth_type, auth_type)
+		__field(int, inactivity_timeout)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		CHAN_DEF_ASSIGN(&settings->chandef);
+		__entry->beacon_interval = settings->beacon_interval;
+		__entry->dtim_period = settings->dtim_period;
+		__entry->hidden_ssid = settings->hidden_ssid;
+		__entry->wpa_ver = settings->crypto.wpa_versions;
+		__entry->privacy = settings->privacy;
+		__entry->auth_type = settings->auth_type;
+		__entry->inactivity_timeout = settings->inactivity_timeout;
+		memset(__entry->ssid, 0, IEEE80211_MAX_SSID_LEN + 1);
+		memcpy(__entry->ssid, settings->ssid, settings->ssid_len);
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", AP settings - ssid: %s, "
+		  CHAN_DEF_PR_FMT ", beacon interval: %d, dtim period: %d, "
+		  "hidden ssid: %d, wpa versions: %u, privacy: %s, "
+		  "auth type: %d, inactivity timeout: %d",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->ssid, CHAN_DEF_PR_ARG,
+		  __entry->beacon_interval, __entry->dtim_period,
+		  __entry->hidden_ssid, __entry->wpa_ver,
+		  BOOL_TO_STR(__entry->privacy), __entry->auth_type,
+		  __entry->inactivity_timeout)
+);
+
+TRACE_EVENT(rdev_change_beacon,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_beacon_data *info),
+	TP_ARGS(wiphy, netdev, info),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__dynamic_array(u8, head, info ? info->head_len : 0)
+		__dynamic_array(u8, tail, info ? info->tail_len : 0)
+		__dynamic_array(u8, beacon_ies, info ? info->beacon_ies_len : 0)
+		__dynamic_array(u8, proberesp_ies,
+				info ? info->proberesp_ies_len : 0)
+		__dynamic_array(u8, assocresp_ies,
+				info ? info->assocresp_ies_len : 0)
+		__dynamic_array(u8, probe_resp, info ? info->probe_resp_len : 0)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		if (info) {
+			if (info->head)
+				memcpy(__get_dynamic_array(head), info->head,
+				       info->head_len);
+			if (info->tail)
+				memcpy(__get_dynamic_array(tail), info->tail,
+				       info->tail_len);
+			if (info->beacon_ies)
+				memcpy(__get_dynamic_array(beacon_ies),
+				       info->beacon_ies, info->beacon_ies_len);
+			if (info->proberesp_ies)
+				memcpy(__get_dynamic_array(proberesp_ies),
+				       info->proberesp_ies,
+				       info->proberesp_ies_len);
+			if (info->assocresp_ies)
+				memcpy(__get_dynamic_array(assocresp_ies),
+				       info->assocresp_ies,
+				       info->assocresp_ies_len);
+			if (info->probe_resp)
+				memcpy(__get_dynamic_array(probe_resp),
+				       info->probe_resp, info->probe_resp_len);
+		}
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT, WIPHY_PR_ARG, NETDEV_PR_ARG)
+);
+
+DECLARE_EVENT_CLASS(wiphy_netdev_evt,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
+	TP_ARGS(wiphy, netdev),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT, WIPHY_PR_ARG, NETDEV_PR_ARG)
+);
+
+DEFINE_EVENT(wiphy_netdev_evt, rdev_stop_ap,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
+	TP_ARGS(wiphy, netdev)
+);
+
+DEFINE_EVENT(wiphy_netdev_evt, rdev_get_et_stats,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
+	TP_ARGS(wiphy, netdev)
+);
+
+DEFINE_EVENT(wiphy_netdev_evt, rdev_sched_scan_stop,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
+	TP_ARGS(wiphy, netdev)
+);
+
+DEFINE_EVENT(wiphy_netdev_evt, rdev_set_rekey_data,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
+	TP_ARGS(wiphy, netdev)
+);
+
+DEFINE_EVENT(wiphy_netdev_evt, rdev_get_mesh_config,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
+	TP_ARGS(wiphy, netdev)
+);
+
+DEFINE_EVENT(wiphy_netdev_evt, rdev_leave_mesh,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
+	TP_ARGS(wiphy, netdev)
+);
+
+DEFINE_EVENT(wiphy_netdev_evt, rdev_leave_ibss,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
+	TP_ARGS(wiphy, netdev)
+);
+
+DEFINE_EVENT(wiphy_netdev_evt, rdev_flush_pmksa,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
+	TP_ARGS(wiphy, netdev)
+);
+
+DECLARE_EVENT_CLASS(station_add_change,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 *mac,
+		 struct station_parameters *params),
+	TP_ARGS(wiphy, netdev, mac, params),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(sta_mac)
+		__field(u32, sta_flags_mask)
+		__field(u32, sta_flags_set)
+		__field(u32, sta_modify_mask)
+		__field(int, listen_interval)
+		__field(u16, aid)
+		__field(u8, plink_action)
+		__field(u8, plink_state)
+		__field(u8, uapsd_queues)
+		__array(u8, ht_capa, (int)sizeof(struct ieee80211_ht_cap))
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(sta_mac, mac);
+		__entry->sta_flags_mask = params->sta_flags_mask;
+		__entry->sta_flags_set = params->sta_flags_set;
+		__entry->sta_modify_mask = params->sta_modify_mask;
+		__entry->listen_interval = params->listen_interval;
+		__entry->aid = params->aid;
+		__entry->plink_action = params->plink_action;
+		__entry->plink_state = params->plink_state;
+		__entry->uapsd_queues = params->uapsd_queues;
+		memset(__entry->ht_capa, 0, sizeof(struct ieee80211_ht_cap));
+		if (params->ht_capa)
+			memcpy(__entry->ht_capa, params->ht_capa,
+			       sizeof(struct ieee80211_ht_cap));
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", station mac: " MAC_PR_FMT
+		  ", station flags mask: %u, station flags set: %u, "
+		  "station modify mask: %u, listen interval: %d, aid: %u, "
+		  "plink action: %u, plink state: %u, uapsd queues: %u",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(sta_mac),
+		  __entry->sta_flags_mask, __entry->sta_flags_set,
+		  __entry->sta_modify_mask, __entry->listen_interval,
+		  __entry->aid, __entry->plink_action, __entry->plink_state,
+		  __entry->uapsd_queues)
+);
+
+DEFINE_EVENT(station_add_change, rdev_add_station,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 *mac,
+		 struct station_parameters *params),
+	TP_ARGS(wiphy, netdev, mac, params)
+);
+
+DEFINE_EVENT(station_add_change, rdev_change_station,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 *mac,
+		 struct station_parameters *params),
+	TP_ARGS(wiphy, netdev, mac, params)
+);
+
+DECLARE_EVENT_CLASS(wiphy_netdev_mac_evt,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, const u8 *mac),
+	TP_ARGS(wiphy, netdev, mac),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(sta_mac)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(sta_mac, mac);
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", mac: " MAC_PR_FMT,
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(sta_mac))
+);
+
+DEFINE_EVENT(wiphy_netdev_mac_evt, rdev_del_station,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, const u8 *mac),
+	TP_ARGS(wiphy, netdev, mac)
+);
+
+DEFINE_EVENT(wiphy_netdev_mac_evt, rdev_get_station,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, const u8 *mac),
+	TP_ARGS(wiphy, netdev, mac)
+);
+
+DEFINE_EVENT(wiphy_netdev_mac_evt, rdev_del_mpath,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, const u8 *mac),
+	TP_ARGS(wiphy, netdev, mac)
+);
+
+DEFINE_EVENT(wiphy_netdev_mac_evt, rdev_set_wds_peer,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, const u8 *mac),
+	TP_ARGS(wiphy, netdev, mac)
+);
+
+TRACE_EVENT(rdev_dump_station,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, int idx,
+		 u8 *mac),
+	TP_ARGS(wiphy, netdev, idx, mac),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(sta_mac)
+		__field(int, idx)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(sta_mac, mac);
+		__entry->idx = idx;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", station mac: " MAC_PR_FMT ", idx: %d",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(sta_mac),
+		  __entry->idx)
+);
+
+TRACE_EVENT(rdev_return_int_station_info,
+	TP_PROTO(struct wiphy *wiphy, int ret, struct station_info *sinfo),
+	TP_ARGS(wiphy, ret, sinfo),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(int, ret)
+		SINFO_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		__entry->ret = ret;
+		SINFO_ASSIGN;
+	),
+	TP_printk(WIPHY_PR_FMT ", returned %d" ,
+		  WIPHY_PR_ARG, __entry->ret)
+);
+
+DECLARE_EVENT_CLASS(mpath_evt,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 *dst,
+		 u8 *next_hop),
+	TP_ARGS(wiphy, netdev, dst, next_hop),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(dst)
+		MAC_ENTRY(next_hop)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(dst, dst);
+		MAC_ASSIGN(next_hop, next_hop);
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", destination: " MAC_PR_FMT ", next hop: " MAC_PR_FMT,
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(dst),
+		  MAC_PR_ARG(next_hop))
+);
+
+DEFINE_EVENT(mpath_evt, rdev_add_mpath,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 *dst,
+		 u8 *next_hop),
+	TP_ARGS(wiphy, netdev, dst, next_hop)
+);
+
+DEFINE_EVENT(mpath_evt, rdev_change_mpath,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 *dst,
+		 u8 *next_hop),
+	TP_ARGS(wiphy, netdev, dst, next_hop)
+);
+
+DEFINE_EVENT(mpath_evt, rdev_get_mpath,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u8 *dst,
+		 u8 *next_hop),
+	TP_ARGS(wiphy, netdev, dst, next_hop)
+);
+
+TRACE_EVENT(rdev_dump_mpath,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, int idx,
+		 u8 *dst, u8 *next_hop),
+	TP_ARGS(wiphy, netdev, idx, dst, next_hop),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(dst)
+		MAC_ENTRY(next_hop)
+		__field(int, idx)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(dst, dst);
+		MAC_ASSIGN(next_hop, next_hop);
+		__entry->idx = idx;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", index: %d, destination: "
+		  MAC_PR_FMT ", next hop: " MAC_PR_FMT,
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->idx, MAC_PR_ARG(dst),
+		  MAC_PR_ARG(next_hop))
+);
+
+TRACE_EVENT(rdev_return_int_mpath_info,
+	TP_PROTO(struct wiphy *wiphy, int ret, struct mpath_info *pinfo),
+	TP_ARGS(wiphy, ret, pinfo),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(int, ret)
+		__field(int, generation)
+		__field(u32, filled)
+		__field(u32, frame_qlen)
+		__field(u32, sn)
+		__field(u32, metric)
+		__field(u32, exptime)
+		__field(u32, discovery_timeout)
+		__field(u8, discovery_retries)
+		__field(u8, flags)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		__entry->ret = ret;
+		__entry->generation = pinfo->generation;
+		__entry->filled = pinfo->filled;
+		__entry->frame_qlen = pinfo->frame_qlen;
+		__entry->sn = pinfo->sn;
+		__entry->metric = pinfo->metric;
+		__entry->exptime = pinfo->exptime;
+		__entry->discovery_timeout = pinfo->discovery_timeout;
+		__entry->discovery_retries = pinfo->discovery_retries;
+		__entry->flags = pinfo->flags;
+	),
+	TP_printk(WIPHY_PR_FMT ", returned %d. mpath info - generation: %d, "
+		  "filled: %u, frame qlen: %u, sn: %u, metric: %u, exptime: %u,"
+		  " discovery timeout: %u, discovery retries: %u, flags: %u",
+		  WIPHY_PR_ARG, __entry->ret, __entry->generation,
+		  __entry->filled, __entry->frame_qlen, __entry->sn,
+		  __entry->metric, __entry->exptime, __entry->discovery_timeout,
+		  __entry->discovery_retries, __entry->flags)
+);
+
+TRACE_EVENT(rdev_return_int_mesh_config,
+	TP_PROTO(struct wiphy *wiphy, int ret, struct mesh_config *conf),
+	TP_ARGS(wiphy, ret, conf),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		MESH_CFG_ENTRY
+		__field(int, ret)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		MESH_CFG_ASSIGN;
+		__entry->ret = ret;
+	),
+	TP_printk(WIPHY_PR_FMT ", returned: %d",
+		  WIPHY_PR_ARG, __entry->ret)
+);
+
+TRACE_EVENT(rdev_update_mesh_config,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u32 mask,
+		 const struct mesh_config *conf),
+	TP_ARGS(wiphy, netdev, mask, conf),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MESH_CFG_ENTRY
+		__field(u32, mask)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MESH_CFG_ASSIGN;
+		__entry->mask = mask;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", mask: %u",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->mask)
+);
+
+TRACE_EVENT(rdev_join_mesh,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 const struct mesh_config *conf,
+		 const struct mesh_setup *setup),
+	TP_ARGS(wiphy, netdev, conf, setup),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MESH_CFG_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MESH_CFG_ASSIGN;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT,
+		  WIPHY_PR_ARG, NETDEV_PR_ARG)
+);
+
+TRACE_EVENT(rdev_change_bss,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct bss_parameters *params),
+	TP_ARGS(wiphy, netdev, params),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(int, use_cts_prot)
+		__field(int, use_short_preamble)
+		__field(int, use_short_slot_time)
+		__field(int, ap_isolate)
+		__field(int, ht_opmode)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->use_cts_prot = params->use_cts_prot;
+		__entry->use_short_preamble = params->use_short_preamble;
+		__entry->use_short_slot_time = params->use_short_slot_time;
+		__entry->ap_isolate = params->ap_isolate;
+		__entry->ht_opmode = params->ht_opmode;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", use cts prot: %d, "
+		  "use short preamble: %d, use short slot time: %d, "
+		  "ap isolate: %d, ht opmode: %d",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->use_cts_prot,
+		  __entry->use_short_preamble, __entry->use_short_slot_time,
+		  __entry->ap_isolate, __entry->ht_opmode)
+);
+
+TRACE_EVENT(rdev_set_txq_params,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct ieee80211_txq_params *params),
+	TP_ARGS(wiphy, netdev, params),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(enum nl80211_ac, ac)
+		__field(u16, txop)
+		__field(u16, cwmin)
+		__field(u16, cwmax)
+		__field(u8, aifs)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->ac = params->ac;
+		__entry->txop = params->txop;
+		__entry->cwmin = params->cwmin;
+		__entry->cwmax = params->cwmax;
+		__entry->aifs = params->aifs;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", ac: %d, txop: %u, cwmin: %u, cwmax: %u, aifs: %u",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->ac, __entry->txop,
+		  __entry->cwmin, __entry->cwmax, __entry->aifs)
+);
+
+TRACE_EVENT(rdev_libertas_set_mesh_channel,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct ieee80211_channel *chan),
+	TP_ARGS(wiphy, netdev, chan),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		CHAN_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		CHAN_ASSIGN(chan);
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", " CHAN_PR_FMT, WIPHY_PR_ARG,
+		  NETDEV_PR_ARG, CHAN_PR_ARG)
+);
+
+TRACE_EVENT(rdev_set_monitor_channel,
+	TP_PROTO(struct wiphy *wiphy,
+		 struct cfg80211_chan_def *chandef),
+	TP_ARGS(wiphy, chandef),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		CHAN_DEF_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		CHAN_DEF_ASSIGN(chandef);
+	),
+	TP_printk(WIPHY_PR_FMT ", " CHAN_DEF_PR_FMT,
+		  WIPHY_PR_ARG, CHAN_DEF_PR_ARG)
+);
+
+TRACE_EVENT(rdev_auth,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_auth_request *req),
+	TP_ARGS(wiphy, netdev, req),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(bssid)
+		__field(enum nl80211_auth_type, auth_type)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		if (req->bss)
+			MAC_ASSIGN(bssid, req->bss->bssid);
+		else
+			memset(__entry->bssid, 0, ETH_ALEN);
+		__entry->auth_type = req->auth_type;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", auth type: %d, bssid: " MAC_PR_FMT,
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->auth_type,
+		  MAC_PR_ARG(bssid))
+);
+
+TRACE_EVENT(rdev_assoc,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_assoc_request *req),
+	TP_ARGS(wiphy, netdev, req),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(bssid)
+		MAC_ENTRY(prev_bssid)
+		__field(bool, use_mfp)
+		__field(u32, flags)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		if (req->bss)
+			MAC_ASSIGN(bssid, req->bss->bssid);
+		else
+			memset(__entry->bssid, 0, ETH_ALEN);
+		MAC_ASSIGN(prev_bssid, req->prev_bssid);
+		__entry->use_mfp = req->use_mfp;
+		__entry->flags = req->flags;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", bssid: " MAC_PR_FMT
+		  ", previous bssid: " MAC_PR_FMT ", use mfp: %s, flags: %u",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(bssid),
+		  MAC_PR_ARG(prev_bssid), BOOL_TO_STR(__entry->use_mfp),
+		  __entry->flags)
+);
+
+TRACE_EVENT(rdev_deauth,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_deauth_request *req),
+	TP_ARGS(wiphy, netdev, req),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(bssid)
+		__field(u16, reason_code)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(bssid, req->bssid);
+		__entry->reason_code = req->reason_code;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", bssid: " MAC_PR_FMT ", reason: %u",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(bssid),
+		  __entry->reason_code)
+);
+
+TRACE_EVENT(rdev_disassoc,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_disassoc_request *req),
+	TP_ARGS(wiphy, netdev, req),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(bssid)
+		__field(u16, reason_code)
+		__field(bool, local_state_change)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		if (req->bss)
+			MAC_ASSIGN(bssid, req->bss->bssid);
+		else
+			memset(__entry->bssid, 0, ETH_ALEN);
+		__entry->reason_code = req->reason_code;
+		__entry->local_state_change = req->local_state_change;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", bssid: " MAC_PR_FMT
+		  ", reason: %u, local state change: %s",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(bssid),
+		  __entry->reason_code,
+		  BOOL_TO_STR(__entry->local_state_change))
+);
+
+TRACE_EVENT(rdev_mgmt_tx_cancel_wait,
+	TP_PROTO(struct wiphy *wiphy,
+		 struct wireless_dev *wdev, u64 cookie),
+	TP_ARGS(wiphy, wdev, cookie),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		WDEV_ENTRY
+		__field(u64, cookie)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		WDEV_ASSIGN;
+		__entry->cookie = cookie;
+	),
+	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT ", cookie: %llu ",
+		  WIPHY_PR_ARG, WDEV_PR_ARG, __entry->cookie)
+);
+
+TRACE_EVENT(rdev_set_power_mgmt,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 bool enabled, int timeout),
+	TP_ARGS(wiphy, netdev, enabled, timeout),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(bool, enabled)
+		__field(int, timeout)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->enabled = enabled;
+		__entry->timeout = timeout;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", %senabled, timeout: %d ",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG,
+		  __entry->enabled ? "" : "not ", __entry->timeout)
+);
+
+TRACE_EVENT(rdev_connect,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_connect_params *sme),
+	TP_ARGS(wiphy, netdev, sme),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(bssid)
+		__array(char, ssid, IEEE80211_MAX_SSID_LEN + 1)
+		__field(enum nl80211_auth_type, auth_type)
+		__field(bool, privacy)
+		__field(u32, wpa_versions)
+		__field(u32, flags)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(bssid, sme->bssid);
+		memset(__entry->ssid, 0, IEEE80211_MAX_SSID_LEN + 1);
+		memcpy(__entry->ssid, sme->ssid, sme->ssid_len);
+		__entry->auth_type = sme->auth_type;
+		__entry->privacy = sme->privacy;
+		__entry->wpa_versions = sme->crypto.wpa_versions;
+		__entry->flags = sme->flags;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", bssid: " MAC_PR_FMT
+		  ", ssid: %s, auth type: %d, privacy: %s, wpa versions: %u, "
+		  "flags: %u",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(bssid), __entry->ssid,
+		  __entry->auth_type, BOOL_TO_STR(__entry->privacy),
+		  __entry->wpa_versions, __entry->flags)
+);
+
+TRACE_EVENT(rdev_set_cqm_rssi_config,
+	TP_PROTO(struct wiphy *wiphy,
+		 struct net_device *netdev, s32 rssi_thold,
+		 u32 rssi_hyst),
+	TP_ARGS(wiphy, netdev, rssi_thold, rssi_hyst),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(s32, rssi_thold)
+		__field(u32, rssi_hyst)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->rssi_thold = rssi_thold;
+		__entry->rssi_hyst = rssi_hyst;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT
+		  ", rssi_thold: %d, rssi_hyst: %u ",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG,
+		 __entry->rssi_thold, __entry->rssi_hyst)
+);
+
+TRACE_EVENT(rdev_set_cqm_txe_config,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u32 rate,
+		 u32 pkts, u32 intvl),
+	TP_ARGS(wiphy, netdev, rate, pkts, intvl),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(u32, rate)
+		__field(u32, pkts)
+		__field(u32, intvl)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->rate = rate;
+		__entry->pkts = pkts;
+		__entry->intvl = intvl;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", rate: %u, packets: %u, interval: %u",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->rate, __entry->pkts,
+		  __entry->intvl)
+);
+
+TRACE_EVENT(rdev_disconnect,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 u16 reason_code),
+	TP_ARGS(wiphy, netdev, reason_code),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(u16, reason_code)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->reason_code = reason_code;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", reason code: %u", WIPHY_PR_ARG,
+		  NETDEV_PR_ARG, __entry->reason_code)
+);
+
+TRACE_EVENT(rdev_join_ibss,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_ibss_params *params),
+	TP_ARGS(wiphy, netdev, params),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(bssid)
+		__array(char, ssid, IEEE80211_MAX_SSID_LEN + 1)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(bssid, params->bssid);
+		memset(__entry->ssid, 0, IEEE80211_MAX_SSID_LEN + 1);
+		memcpy(__entry->ssid, params->ssid, params->ssid_len);
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", bssid: " MAC_PR_FMT ", ssid: %s",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(bssid), __entry->ssid)
+);
+
+TRACE_EVENT(rdev_set_wiphy_params,
+	TP_PROTO(struct wiphy *wiphy, u32 changed),
+	TP_ARGS(wiphy, changed),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(u32, changed)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		__entry->changed = changed;
+	),
+	TP_printk(WIPHY_PR_FMT ", changed: %u",
+		  WIPHY_PR_ARG, __entry->changed)
+);
+
+DEFINE_EVENT(wiphy_wdev_evt, rdev_get_tx_power,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
+	TP_ARGS(wiphy, wdev)
+);
+
+TRACE_EVENT(rdev_set_tx_power,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev,
+		 enum nl80211_tx_power_setting type, int mbm),
+	TP_ARGS(wiphy, wdev, type, mbm),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		WDEV_ENTRY
+		__field(enum nl80211_tx_power_setting, type)
+		__field(int, mbm)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		WDEV_ASSIGN;
+		__entry->type = type;
+		__entry->mbm = mbm;
+	),
+	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT ", type: %u, mbm: %d",
+		  WIPHY_PR_ARG, WDEV_PR_ARG,__entry->type, __entry->mbm)
+);
+
+TRACE_EVENT(rdev_return_int_int,
+	TP_PROTO(struct wiphy *wiphy, int func_ret, int func_fill),
+	TP_ARGS(wiphy, func_ret, func_fill),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(int, func_ret)
+		__field(int, func_fill)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		__entry->func_ret = func_ret;
+		__entry->func_fill = func_fill;
+	),
+	TP_printk(WIPHY_PR_FMT ", function returns: %d, function filled: %d",
+		  WIPHY_PR_ARG, __entry->func_ret, __entry->func_fill)
+);
+
+#ifdef CONFIG_NL80211_TESTMODE
+TRACE_EVENT(rdev_testmode_cmd,
+	TP_PROTO(struct wiphy *wiphy),
+	TP_ARGS(wiphy),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+	),
+	TP_printk(WIPHY_PR_FMT, WIPHY_PR_ARG)
+);
+
+TRACE_EVENT(rdev_testmode_dump,
+	TP_PROTO(struct wiphy *wiphy),
+	TP_ARGS(wiphy),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+	),
+	TP_printk(WIPHY_PR_FMT, WIPHY_PR_ARG)
+);
+#endif /* CONFIG_NL80211_TESTMODE */
+
+TRACE_EVENT(rdev_set_bitrate_mask,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 const u8 *peer, const struct cfg80211_bitrate_mask *mask),
+	TP_ARGS(wiphy, netdev, peer, mask),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(peer)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(peer, peer);
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", peer: " MAC_PR_FMT,
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer))
+);
+
+TRACE_EVENT(rdev_mgmt_frame_register,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev,
+		 u16 frame_type, bool reg),
+	TP_ARGS(wiphy, wdev, frame_type, reg),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		WDEV_ENTRY
+		__field(u16, frame_type)
+		__field(bool, reg)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		WDEV_ASSIGN;
+		__entry->frame_type = frame_type;
+		__entry->reg = reg;
+	),
+	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT ", frame_type: 0x%.2x, reg: %s ",
+		  WIPHY_PR_ARG, WDEV_PR_ARG, __entry->frame_type,
+		  __entry->reg ? "true" : "false")
+);
+
+TRACE_EVENT(rdev_return_int_tx_rx,
+	TP_PROTO(struct wiphy *wiphy, int ret, u32 tx, u32 rx),
+	TP_ARGS(wiphy, ret, tx, rx),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(int, ret)
+		__field(u32, tx)
+		__field(u32, rx)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		__entry->ret = ret;
+		__entry->tx = tx;
+		__entry->rx = rx;
+	),
+	TP_printk(WIPHY_PR_FMT ", returned %d, tx: %u, rx: %u",
+		  WIPHY_PR_ARG, __entry->ret, __entry->tx, __entry->rx)
+);
+
+TRACE_EVENT(rdev_return_void_tx_rx,
+	TP_PROTO(struct wiphy *wiphy, u32 tx, u32 tx_max,
+		 u32 rx, u32 rx_max),
+	TP_ARGS(wiphy, tx, tx_max, rx, rx_max),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(u32, tx)
+		__field(u32, tx_max)
+		__field(u32, rx)
+		__field(u32, rx_max)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		__entry->tx = tx;
+		__entry->tx_max = tx_max;
+		__entry->rx = rx;
+		__entry->rx_max = rx_max;
+	),
+	TP_printk(WIPHY_PR_FMT ", tx: %u, tx_max: %u, rx: %u, rx_max: %u ",
+		  WIPHY_PR_ARG, __entry->tx, __entry->tx_max, __entry->rx,
+		  __entry->rx_max)
+);
+
+DECLARE_EVENT_CLASS(tx_rx_evt,
+	TP_PROTO(struct wiphy *wiphy, u32 tx, u32 rx),
+	TP_ARGS(wiphy, rx, tx),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(u32, tx)
+		__field(u32, rx)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		__entry->tx = tx;
+		__entry->rx = rx;
+	),
+	TP_printk(WIPHY_PR_FMT ", tx: %u, rx: %u ",
+		  WIPHY_PR_ARG, __entry->tx, __entry->rx)
+);
+
+DEFINE_EVENT(tx_rx_evt, rdev_set_ringparam,
+	TP_PROTO(struct wiphy *wiphy, u32 tx, u32 rx),
+	TP_ARGS(wiphy, rx, tx)
+);
+
+DEFINE_EVENT(tx_rx_evt, rdev_set_antenna,
+	TP_PROTO(struct wiphy *wiphy, u32 tx, u32 rx),
+	TP_ARGS(wiphy, rx, tx)
+);
+
+TRACE_EVENT(rdev_sched_scan_start,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_sched_scan_request *request),
+	TP_ARGS(wiphy, netdev, request),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT,
+		  WIPHY_PR_ARG, NETDEV_PR_ARG)
+);
+
+TRACE_EVENT(rdev_tdls_mgmt,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 u8 *peer, u8 action_code, u8 dialog_token,
+		 u16 status_code, const u8 *buf, size_t len),
+	TP_ARGS(wiphy, netdev, peer, action_code, dialog_token, status_code,
+		buf, len),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(peer)
+		__field(u8, action_code)
+		__field(u8, dialog_token)
+		__field(u16, status_code)
+		__dynamic_array(u8, buf, len)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(peer, peer);
+		__entry->action_code = action_code;
+		__entry->dialog_token = dialog_token;
+		__entry->status_code = status_code;
+		memcpy(__get_dynamic_array(buf), buf, len);
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", " MAC_PR_FMT ", action_code: %u, "
+		  "dialog_token: %u, status_code: %u, buf: %#.2x ",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer),
+		  __entry->action_code, __entry->dialog_token,
+		  __entry->status_code, ((u8 *)__get_dynamic_array(buf))[0])
+);
+
+TRACE_EVENT(rdev_dump_survey,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, int idx),
+	TP_ARGS(wiphy, netdev, idx),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(int, idx)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->idx = idx;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", index: %d",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->idx)
+);
+
+TRACE_EVENT(rdev_return_int_survey_info,
+	TP_PROTO(struct wiphy *wiphy, int ret, struct survey_info *info),
+	TP_ARGS(wiphy, ret, info),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		CHAN_ENTRY
+		__field(int, ret)
+		__field(u64, channel_time)
+		__field(u64, channel_time_busy)
+		__field(u64, channel_time_ext_busy)
+		__field(u64, channel_time_rx)
+		__field(u64, channel_time_tx)
+		__field(u32, filled)
+		__field(s8, noise)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		CHAN_ASSIGN(info->channel);
+		__entry->ret = ret;
+		__entry->channel_time = info->channel_time;
+		__entry->channel_time_busy = info->channel_time_busy;
+		__entry->channel_time_ext_busy = info->channel_time_ext_busy;
+		__entry->channel_time_rx = info->channel_time_rx;
+		__entry->channel_time_tx = info->channel_time_tx;
+		__entry->filled = info->filled;
+		__entry->noise = info->noise;
+	),
+	TP_printk(WIPHY_PR_FMT ", returned: %d, " CHAN_PR_FMT
+		  ", channel time: %llu, channel time busy: %llu, "
+		  "channel time extension busy: %llu, channel time rx: %llu, "
+		  "channel time tx: %llu, filled: %u, noise: %d",
+		  WIPHY_PR_ARG, __entry->ret, CHAN_PR_ARG,
+		  __entry->channel_time, __entry->channel_time_busy,
+		  __entry->channel_time_ext_busy, __entry->channel_time_rx,
+		  __entry->channel_time_tx, __entry->filled, __entry->noise)
+);
+
+TRACE_EVENT(rdev_tdls_oper,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 u8 *peer, enum nl80211_tdls_operation oper),
+	TP_ARGS(wiphy, netdev, peer, oper),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(peer)
+		__field(enum nl80211_tdls_operation, oper)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(peer, peer);
+		__entry->oper = oper;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", " MAC_PR_FMT ", oper: %d",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer), __entry->oper)
+);
+
+DECLARE_EVENT_CLASS(rdev_pmksa,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_pmksa *pmksa),
+	TP_ARGS(wiphy, netdev, pmksa),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(bssid)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(bssid, pmksa->bssid);
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", bssid: " MAC_PR_FMT,
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(bssid))
+);
+
+TRACE_EVENT(rdev_probe_client,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 const u8 *peer),
+	TP_ARGS(wiphy, netdev, peer),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(peer)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(peer, peer);
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", " MAC_PR_FMT,
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer))
+);
+
+DEFINE_EVENT(rdev_pmksa, rdev_set_pmksa,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_pmksa *pmksa),
+	TP_ARGS(wiphy, netdev, pmksa)
+);
+
+DEFINE_EVENT(rdev_pmksa, rdev_del_pmksa,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_pmksa *pmksa),
+	TP_ARGS(wiphy, netdev, pmksa)
+);
+
+TRACE_EVENT(rdev_remain_on_channel,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev,
+		 struct ieee80211_channel *chan,
+		 unsigned int duration),
+	TP_ARGS(wiphy, wdev, chan, duration),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		WDEV_ENTRY
+		CHAN_ENTRY
+		__field(unsigned int, duration)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		WDEV_ASSIGN;
+		CHAN_ASSIGN(chan);
+		__entry->duration = duration;
+	),
+	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT ", " CHAN_PR_FMT ", duration: %u",
+		  WIPHY_PR_ARG, WDEV_PR_ARG, CHAN_PR_ARG, __entry->duration)
+);
+
+TRACE_EVENT(rdev_return_int_cookie,
+	TP_PROTO(struct wiphy *wiphy, int ret, u64 cookie),
+	TP_ARGS(wiphy, ret, cookie),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(int, ret)
+		__field(u64, cookie)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		__entry->ret = ret;
+		__entry->cookie = cookie;
+	),
+	TP_printk(WIPHY_PR_FMT ", returned %d, cookie: %llu",
+		  WIPHY_PR_ARG, __entry->ret, __entry->cookie)
+);
+
+TRACE_EVENT(rdev_cancel_remain_on_channel,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev, u64 cookie),
+	TP_ARGS(wiphy, wdev, cookie),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		WDEV_ENTRY
+		__field(u64, cookie)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		WDEV_ASSIGN;
+		__entry->cookie = cookie;
+	),
+	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT ", cookie: %llu",
+		  WIPHY_PR_ARG, WDEV_PR_ARG, __entry->cookie)
+);
+
+TRACE_EVENT(rdev_mgmt_tx,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev,
+		 struct ieee80211_channel *chan, bool offchan,
+		 unsigned int wait, bool no_cck, bool dont_wait_for_ack),
+	TP_ARGS(wiphy, wdev, chan, offchan, wait, no_cck, dont_wait_for_ack),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		WDEV_ENTRY
+		CHAN_ENTRY
+		__field(bool, offchan)
+		__field(unsigned int, wait)
+		__field(bool, no_cck)
+		__field(bool, dont_wait_for_ack)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		WDEV_ASSIGN;
+		CHAN_ASSIGN(chan);
+		__entry->offchan = offchan;
+		__entry->wait = wait;
+		__entry->no_cck = no_cck;
+		__entry->dont_wait_for_ack = dont_wait_for_ack;
+	),
+	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT ", " CHAN_PR_FMT ", offchan: %s,"
+		  " wait: %u, no cck: %s, dont wait for ack: %s",
+		  WIPHY_PR_ARG, WDEV_PR_ARG, CHAN_PR_ARG,
+		  BOOL_TO_STR(__entry->offchan), __entry->wait,
+		  BOOL_TO_STR(__entry->no_cck),
+		  BOOL_TO_STR(__entry->dont_wait_for_ack))
+);
+
+TRACE_EVENT(rdev_set_noack_map,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 u16 noack_map),
+	TP_ARGS(wiphy, netdev, noack_map),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(u16, noack_map)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->noack_map = noack_map;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", noack_map: %u",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->noack_map)
+);
+
+TRACE_EVENT(rdev_get_et_sset_count,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, int sset),
+	TP_ARGS(wiphy, netdev, sset),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(int, sset)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->sset = sset;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", sset: %d",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->sset)
+);
+
+TRACE_EVENT(rdev_get_et_strings,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u32 sset),
+	TP_ARGS(wiphy, netdev, sset),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(u32, sset)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->sset = sset;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", sset: %u",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->sset)
+);
+
+DEFINE_EVENT(wiphy_wdev_evt, rdev_get_channel,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
+	TP_ARGS(wiphy, wdev)
+);
+
+TRACE_EVENT(rdev_return_chandef,
+	TP_PROTO(struct wiphy *wiphy, int ret,
+		 struct cfg80211_chan_def *chandef),
+	TP_ARGS(wiphy, ret, chandef),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(int, ret)
+		CHAN_DEF_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		if (ret == 0)
+			CHAN_DEF_ASSIGN(chandef);
+		else
+			CHAN_DEF_ASSIGN((struct cfg80211_chan_def *)NULL);
+		__entry->ret = ret;
+	),
+	TP_printk(WIPHY_PR_FMT ", " CHAN_DEF_PR_FMT ", ret: %d",
+		  WIPHY_PR_ARG, CHAN_DEF_PR_ARG, __entry->ret)
+);
+
+DEFINE_EVENT(wiphy_wdev_evt, rdev_start_p2p_device,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
+	TP_ARGS(wiphy, wdev)
+);
+
+DEFINE_EVENT(wiphy_wdev_evt, rdev_stop_p2p_device,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
+	TP_ARGS(wiphy, wdev)
+);
+
+/*************************************************************
+ *	     cfg80211 exported functions traces		     *
+ *************************************************************/
+
+TRACE_EVENT(cfg80211_return_bool,
+	TP_PROTO(bool ret),
+	TP_ARGS(ret),
+	TP_STRUCT__entry(
+		__field(bool, ret)
+	),
+	TP_fast_assign(
+		__entry->ret = ret;
+	),
+	TP_printk("returned %s", BOOL_TO_STR(__entry->ret))
+);
+
+DECLARE_EVENT_CLASS(cfg80211_netdev_mac_evt,
+	TP_PROTO(struct net_device *netdev, const u8 *macaddr),
+	TP_ARGS(netdev, macaddr),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		MAC_ENTRY(macaddr)
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(macaddr, macaddr);
+	),
+	TP_printk(NETDEV_PR_FMT ", mac: " MAC_PR_FMT,
+		  NETDEV_PR_ARG, MAC_PR_ARG(macaddr))
+);
+
+DEFINE_EVENT(cfg80211_netdev_mac_evt, cfg80211_notify_new_peer_candidate,
+	TP_PROTO(struct net_device *netdev, const u8 *macaddr),
+	TP_ARGS(netdev, macaddr)
+);
+
+DECLARE_EVENT_CLASS(netdev_evt_only,
+	TP_PROTO(struct net_device *netdev),
+	TP_ARGS(netdev),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+	),
+	TP_printk(NETDEV_PR_FMT , NETDEV_PR_ARG)
+);
+
+DEFINE_EVENT(netdev_evt_only, cfg80211_send_rx_auth,
+	TP_PROTO(struct net_device *netdev),
+	TP_ARGS(netdev)
+);
+
+TRACE_EVENT(cfg80211_send_rx_assoc,
+	TP_PROTO(struct net_device *netdev, struct cfg80211_bss *bss),
+	TP_ARGS(netdev, bss),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		MAC_ENTRY(bssid)
+		CHAN_ENTRY
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(bssid, bss->bssid);
+		CHAN_ASSIGN(bss->channel);
+	),
+	TP_printk(NETDEV_PR_FMT ", " MAC_PR_FMT ", " CHAN_PR_FMT,
+		  NETDEV_PR_ARG, MAC_PR_ARG(bssid), CHAN_PR_ARG)
+);
+
+DEFINE_EVENT(netdev_evt_only, __cfg80211_send_deauth,
+	TP_PROTO(struct net_device *netdev),
+	TP_ARGS(netdev)
+);
+
+DEFINE_EVENT(netdev_evt_only, __cfg80211_send_disassoc,
+	TP_PROTO(struct net_device *netdev),
+	TP_ARGS(netdev)
+);
+
+DEFINE_EVENT(netdev_evt_only, cfg80211_send_unprot_deauth,
+	TP_PROTO(struct net_device *netdev),
+	TP_ARGS(netdev)
+);
+
+DEFINE_EVENT(netdev_evt_only, cfg80211_send_unprot_disassoc,
+	TP_PROTO(struct net_device *netdev),
+	TP_ARGS(netdev)
+);
+
+DECLARE_EVENT_CLASS(netdev_mac_evt,
+	TP_PROTO(struct net_device *netdev, const u8 *mac),
+	TP_ARGS(netdev, mac),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		MAC_ENTRY(mac)
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(mac, mac)
+	),
+	TP_printk(NETDEV_PR_FMT ", mac: " MAC_PR_FMT,
+		  NETDEV_PR_ARG, MAC_PR_ARG(mac))
+);
+
+DEFINE_EVENT(netdev_mac_evt, cfg80211_send_auth_timeout,
+	TP_PROTO(struct net_device *netdev, const u8 *mac),
+	TP_ARGS(netdev, mac)
+);
+
+DEFINE_EVENT(netdev_mac_evt, cfg80211_send_assoc_timeout,
+	TP_PROTO(struct net_device *netdev, const u8 *mac),
+	TP_ARGS(netdev, mac)
+);
+
+TRACE_EVENT(cfg80211_michael_mic_failure,
+	TP_PROTO(struct net_device *netdev, const u8 *addr,
+		 enum nl80211_key_type key_type, int key_id, const u8 *tsc),
+	TP_ARGS(netdev, addr, key_type, key_id, tsc),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		MAC_ENTRY(addr)
+		__field(enum nl80211_key_type, key_type)
+		__field(int, key_id)
+		__array(u8, tsc, 6)
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(addr, addr);
+		__entry->key_type = key_type;
+		__entry->key_id = key_id;
+		memcpy(__entry->tsc, tsc, 6);
+	),
+	TP_printk(NETDEV_PR_FMT ", " MAC_PR_FMT ", key type: %d, key id: %d, tsc: %pm",
+		  NETDEV_PR_ARG, MAC_PR_ARG(addr), __entry->key_type,
+		  __entry->key_id, __entry->tsc)
+);
+
+TRACE_EVENT(cfg80211_ready_on_channel,
+	TP_PROTO(struct wireless_dev *wdev, u64 cookie,
+		 struct ieee80211_channel *chan,
+		 unsigned int duration),
+	TP_ARGS(wdev, cookie, chan, duration),
+	TP_STRUCT__entry(
+		WDEV_ENTRY
+		__field(u64, cookie)
+		CHAN_ENTRY
+		__field(unsigned int, duration)
+	),
+	TP_fast_assign(
+		WDEV_ASSIGN;
+		__entry->cookie = cookie;
+		CHAN_ASSIGN(chan);
+		__entry->duration = duration;
+	),
+	TP_printk(WDEV_PR_FMT ", cookie: %llu, " CHAN_PR_FMT ", duration: %u",
+		  WDEV_PR_ARG, __entry->cookie, CHAN_PR_ARG,
+		  __entry->duration)
+);
+
+TRACE_EVENT(cfg80211_ready_on_channel_expired,
+	TP_PROTO(struct wireless_dev *wdev, u64 cookie,
+		 struct ieee80211_channel *chan),
+	TP_ARGS(wdev, cookie, chan),
+	TP_STRUCT__entry(
+		WDEV_ENTRY
+		__field(u64, cookie)
+		CHAN_ENTRY
+	),
+	TP_fast_assign(
+		WDEV_ASSIGN;
+		__entry->cookie = cookie;
+		CHAN_ASSIGN(chan);
+	),
+	TP_printk(WDEV_PR_FMT ", cookie: %llu, " CHAN_PR_FMT,
+		  WDEV_PR_ARG, __entry->cookie, CHAN_PR_ARG)
+);
+
+TRACE_EVENT(cfg80211_new_sta,
+	TP_PROTO(struct net_device *netdev, const u8 *mac_addr,
+		 struct station_info *sinfo),
+	TP_ARGS(netdev, mac_addr, sinfo),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		MAC_ENTRY(mac_addr)
+		SINFO_ENTRY
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(mac_addr, mac_addr);
+		SINFO_ASSIGN;
+	),
+	TP_printk(NETDEV_PR_FMT ", " MAC_PR_FMT,
+		  NETDEV_PR_ARG, MAC_PR_ARG(mac_addr))
+);
+
+DEFINE_EVENT(cfg80211_netdev_mac_evt, cfg80211_del_sta,
+	TP_PROTO(struct net_device *netdev, const u8 *macaddr),
+	TP_ARGS(netdev, macaddr)
+);
+
+TRACE_EVENT(cfg80211_rx_mgmt,
+	TP_PROTO(struct wireless_dev *wdev, int freq, int sig_mbm),
+	TP_ARGS(wdev, freq, sig_mbm),
+	TP_STRUCT__entry(
+		WDEV_ENTRY
+		__field(int, freq)
+		__field(int, sig_mbm)
+	),
+	TP_fast_assign(
+		WDEV_ASSIGN;
+		__entry->freq = freq;
+		__entry->sig_mbm = sig_mbm;
+	),
+	TP_printk(WDEV_PR_FMT ", freq: %d, sig mbm: %d",
+		  WDEV_PR_ARG, __entry->freq, __entry->sig_mbm)
+);
+
+TRACE_EVENT(cfg80211_mgmt_tx_status,
+	TP_PROTO(struct wireless_dev *wdev, u64 cookie, bool ack),
+	TP_ARGS(wdev, cookie, ack),
+	TP_STRUCT__entry(
+		WDEV_ENTRY
+		__field(u64, cookie)
+		__field(bool, ack)
+	),
+	TP_fast_assign(
+		WDEV_ASSIGN;
+		__entry->cookie = cookie;
+		__entry->ack = ack;
+	),
+	TP_printk(WDEV_PR_FMT", cookie: %llu, ack: %s",
+		  WDEV_PR_ARG, __entry->cookie, BOOL_TO_STR(__entry->ack))
+);
+
+TRACE_EVENT(cfg80211_cqm_rssi_notify,
+	TP_PROTO(struct net_device *netdev,
+		 enum nl80211_cqm_rssi_threshold_event rssi_event),
+	TP_ARGS(netdev, rssi_event),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		__field(enum nl80211_cqm_rssi_threshold_event, rssi_event)
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		__entry->rssi_event = rssi_event;
+	),
+	TP_printk(NETDEV_PR_FMT ", rssi event: %d",
+		  NETDEV_PR_ARG, __entry->rssi_event)
+);
+
+TRACE_EVENT(cfg80211_reg_can_beacon,
+	TP_PROTO(struct wiphy *wiphy, struct cfg80211_chan_def *chandef),
+	TP_ARGS(wiphy, chandef),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		CHAN_DEF_ENTRY
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		CHAN_DEF_ASSIGN(chandef);
+	),
+	TP_printk(WIPHY_PR_FMT ", " CHAN_DEF_PR_FMT,
+		  WIPHY_PR_ARG, CHAN_DEF_PR_ARG)
+);
+
+TRACE_EVENT(cfg80211_ch_switch_notify,
+	TP_PROTO(struct net_device *netdev,
+		 struct cfg80211_chan_def *chandef),
+	TP_ARGS(netdev, chandef),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		CHAN_DEF_ENTRY
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		CHAN_DEF_ASSIGN(chandef);
+	),
+	TP_printk(NETDEV_PR_FMT ", " CHAN_DEF_PR_FMT,
+		  NETDEV_PR_ARG, CHAN_DEF_PR_ARG)
+);
+
+DECLARE_EVENT_CLASS(cfg80211_rx_evt,
+	TP_PROTO(struct net_device *netdev, const u8 *addr),
+	TP_ARGS(netdev, addr),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		MAC_ENTRY(addr)
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(addr, addr);
+	),
+	TP_printk(NETDEV_PR_FMT ", " MAC_PR_FMT, NETDEV_PR_ARG, MAC_PR_ARG(addr))
+);
+
+DEFINE_EVENT(cfg80211_rx_evt, cfg80211_ibss_joined,
+	TP_PROTO(struct net_device *netdev, const u8 *addr),
+	TP_ARGS(netdev, addr)
+);
+
+DEFINE_EVENT(cfg80211_rx_evt, cfg80211_rx_spurious_frame,
+	TP_PROTO(struct net_device *netdev, const u8 *addr),
+	TP_ARGS(netdev, addr)
+);
+
+DEFINE_EVENT(cfg80211_rx_evt, cfg80211_rx_unexpected_4addr_frame,
+	TP_PROTO(struct net_device *netdev, const u8 *addr),
+	TP_ARGS(netdev, addr)
+);
+
+TRACE_EVENT(cfg80211_probe_status,
+	TP_PROTO(struct net_device *netdev, const u8 *addr, u64 cookie,
+		 bool acked),
+	TP_ARGS(netdev, addr, cookie, acked),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		MAC_ENTRY(addr)
+		__field(u64, cookie)
+		__field(bool, acked)
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(addr, addr);
+		__entry->cookie = cookie;
+		__entry->acked = acked;
+	),
+	TP_printk(NETDEV_PR_FMT " addr:" MAC_PR_FMT ", cookie: %llu, acked: %s",
+		  NETDEV_PR_ARG, MAC_PR_ARG(addr), __entry->cookie,
+		  BOOL_TO_STR(__entry->acked))
+);
+
+TRACE_EVENT(cfg80211_cqm_pktloss_notify,
+	TP_PROTO(struct net_device *netdev, const u8 *peer, u32 num_packets),
+	TP_ARGS(netdev, peer, num_packets),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		MAC_ENTRY(peer)
+		__field(u32, num_packets)
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(peer, peer);
+		__entry->num_packets = num_packets;
+	),
+	TP_printk(NETDEV_PR_FMT ", peer: " MAC_PR_FMT ", num of lost packets: %u",
+		  NETDEV_PR_ARG, MAC_PR_ARG(peer), __entry->num_packets)
+);
+
+DEFINE_EVENT(cfg80211_netdev_mac_evt, cfg80211_gtk_rekey_notify,
+	TP_PROTO(struct net_device *netdev, const u8 *macaddr),
+	TP_ARGS(netdev, macaddr)
+);
+
+TRACE_EVENT(cfg80211_pmksa_candidate_notify,
+	TP_PROTO(struct net_device *netdev, int index, const u8 *bssid,
+		 bool preauth),
+	TP_ARGS(netdev, index, bssid, preauth),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		__field(int, index)
+		MAC_ENTRY(bssid)
+		__field(bool, preauth)
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		__entry->index = index;
+		MAC_ASSIGN(bssid, bssid);
+		__entry->preauth = preauth;
+	),
+	TP_printk(NETDEV_PR_FMT ", index:%d, bssid: " MAC_PR_FMT ", pre auth: %s",
+		  NETDEV_PR_ARG, __entry->index, MAC_PR_ARG(bssid),
+		  BOOL_TO_STR(__entry->preauth))
+);
+
+TRACE_EVENT(cfg80211_report_obss_beacon,
+	TP_PROTO(struct wiphy *wiphy, const u8 *frame, size_t len,
+		 int freq, int sig_dbm),
+	TP_ARGS(wiphy, frame, len, freq, sig_dbm),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		__field(int, freq)
+		__field(int, sig_dbm)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		__entry->freq = freq;
+		__entry->sig_dbm = sig_dbm;
+	),
+	TP_printk(WIPHY_PR_FMT ", freq: %d, sig_dbm: %d",
+		  WIPHY_PR_ARG, __entry->freq, __entry->sig_dbm)
+);
+
+TRACE_EVENT(cfg80211_tdls_oper_request,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, const u8 *peer,
+		 enum nl80211_tdls_operation oper, u16 reason_code),
+	TP_ARGS(wiphy, netdev, peer, oper, reason_code),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		MAC_ENTRY(peer)
+		__field(enum nl80211_tdls_operation, oper)
+		__field(u16, reason_code)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		MAC_ASSIGN(peer, peer);
+		__entry->oper = oper;
+		__entry->reason_code = reason_code;
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", peer: " MAC_PR_FMT ", oper: %d, reason_code %u",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer), __entry->oper,
+		  __entry->reason_code)
+	);
+
+TRACE_EVENT(cfg80211_scan_done,
+	TP_PROTO(struct cfg80211_scan_request *request, bool aborted),
+	TP_ARGS(request, aborted),
+	TP_STRUCT__entry(
+		__field(u32, n_channels)
+		__dynamic_array(u8, ie, request ? request->ie_len : 0)
+		__array(u32, rates, IEEE80211_NUM_BANDS)
+		__field(u32, wdev_id)
+		MAC_ENTRY(wiphy_mac)
+		__field(bool, no_cck)
+		__field(bool, aborted)
+	),
+	TP_fast_assign(
+		if (request) {
+			memcpy(__get_dynamic_array(ie), request->ie,
+			       request->ie_len);
+			memcpy(__entry->rates, request->rates,
+			       IEEE80211_NUM_BANDS);
+			__entry->wdev_id = request->wdev ?
+					request->wdev->identifier : 0;
+			if (request->wiphy)
+				MAC_ASSIGN(wiphy_mac,
+					   request->wiphy->perm_addr);
+			__entry->no_cck = request->no_cck;
+		}
+		__entry->aborted = aborted;
+	),
+	TP_printk("aborted: %s", BOOL_TO_STR(__entry->aborted))
+);
+
+DEFINE_EVENT(wiphy_only_evt, cfg80211_sched_scan_results,
+	TP_PROTO(struct wiphy *wiphy),
+	TP_ARGS(wiphy)
+);
+
+DEFINE_EVENT(wiphy_only_evt, cfg80211_sched_scan_stopped,
+	TP_PROTO(struct wiphy *wiphy),
+	TP_ARGS(wiphy)
+);
+
+TRACE_EVENT(cfg80211_get_bss,
+	TP_PROTO(struct wiphy *wiphy, struct ieee80211_channel *channel,
+		 const u8 *bssid, const u8 *ssid, size_t ssid_len,
+		 u16 capa_mask, u16 capa_val),
+	TP_ARGS(wiphy, channel, bssid, ssid, ssid_len, capa_mask, capa_val),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		CHAN_ENTRY
+		MAC_ENTRY(bssid)
+		__dynamic_array(u8, ssid, ssid_len)
+		__field(u16, capa_mask)
+		__field(u16, capa_val)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		CHAN_ASSIGN(channel);
+		MAC_ASSIGN(bssid, bssid);
+		memcpy(__get_dynamic_array(ssid), ssid, ssid_len);
+		__entry->capa_mask = capa_mask;
+		__entry->capa_val = capa_val;
+	),
+	TP_printk(WIPHY_PR_FMT ", " CHAN_PR_FMT ", " MAC_PR_FMT ", buf: %#.2x, "
+		  "capa_mask: %d, capa_val: %u", WIPHY_PR_ARG, CHAN_PR_ARG,
+		  MAC_PR_ARG(bssid), ((u8 *)__get_dynamic_array(ssid))[0],
+		  __entry->capa_mask, __entry->capa_val)
+);
+
+TRACE_EVENT(cfg80211_inform_bss_frame,
+	TP_PROTO(struct wiphy *wiphy, struct ieee80211_channel *channel,
+		 struct ieee80211_mgmt *mgmt, size_t len,
+		 s32 signal),
+	TP_ARGS(wiphy, channel, mgmt, len, signal),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		CHAN_ENTRY
+		__dynamic_array(u8, mgmt, len)
+		__field(s32, signal)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		CHAN_ASSIGN(channel);
+		if (mgmt)
+			memcpy(__get_dynamic_array(mgmt), mgmt, len);
+		__entry->signal = signal;
+	),
+	TP_printk(WIPHY_PR_FMT ", " CHAN_PR_FMT "signal: %d",
+		  WIPHY_PR_ARG, CHAN_PR_ARG, __entry->signal)
+);
+
+DECLARE_EVENT_CLASS(cfg80211_bss_evt,
+	TP_PROTO(struct cfg80211_bss *pub),
+	TP_ARGS(pub),
+	TP_STRUCT__entry(
+		MAC_ENTRY(bssid)
+		CHAN_ENTRY
+	),
+	TP_fast_assign(
+		MAC_ASSIGN(bssid, pub->bssid);
+		CHAN_ASSIGN(pub->channel);
+	),
+	TP_printk(MAC_PR_FMT ", " CHAN_PR_FMT, MAC_PR_ARG(bssid), CHAN_PR_ARG)
+);
+
+DEFINE_EVENT(cfg80211_bss_evt, cfg80211_return_bss,
+	TP_PROTO(struct cfg80211_bss *pub),
+	TP_ARGS(pub)
+);
+
+TRACE_EVENT(cfg80211_return_uint,
+	TP_PROTO(unsigned int ret),
+	TP_ARGS(ret),
+	TP_STRUCT__entry(
+		__field(unsigned int, ret)
+	),
+	TP_fast_assign(
+		__entry->ret = ret;
+	),
+	TP_printk("ret: %d", __entry->ret)
+);
+
+TRACE_EVENT(cfg80211_return_u32,
+	TP_PROTO(u32 ret),
+	TP_ARGS(ret),
+	TP_STRUCT__entry(
+		__field(u32, ret)
+	),
+	TP_fast_assign(
+		__entry->ret = ret;
+	),
+	TP_printk("ret: %u", __entry->ret)
+);
+
+#endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+#include <trace/define_trace.h>
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 2762e83..16d76a8 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -11,6 +11,8 @@
 #include <net/ip.h>
 #include <net/dsfield.h>
 #include "core.h"
+#include "rdev-ops.h"
+
 
 struct ieee80211_rate *
 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
@@ -686,10 +688,13 @@ EXPORT_SYMBOL(cfg80211_classify8021d);
 
 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie)
 {
-	if (bss->information_elements == NULL)
+	const struct cfg80211_bss_ies *ies;
+
+	ies = rcu_dereference(bss->ies);
+	if (!ies)
 		return NULL;
-	return cfg80211_find_ie(ie, bss->information_elements,
-				 bss->len_information_elements);
+
+	return cfg80211_find_ie(ie, ies->data, ies->len);
 }
 EXPORT_SYMBOL(ieee80211_bss_get_ie);
 
@@ -705,19 +710,18 @@ void cfg80211_upload_connect_keys(struct wireless_dev *wdev)
 	for (i = 0; i < 6; i++) {
 		if (!wdev->connect_keys->params[i].cipher)
 			continue;
-		if (rdev->ops->add_key(wdev->wiphy, dev, i, false, NULL,
-					&wdev->connect_keys->params[i])) {
+		if (rdev_add_key(rdev, dev, i, false, NULL,
+				 &wdev->connect_keys->params[i])) {
 			netdev_err(dev, "failed to set key %d\n", i);
 			continue;
 		}
 		if (wdev->connect_keys->def == i)
-			if (rdev->ops->set_default_key(wdev->wiphy, dev,
-						       i, true, true)) {
+			if (rdev_set_default_key(rdev, dev, i, true, true)) {
 				netdev_err(dev, "failed to set defkey %d\n", i);
 				continue;
 			}
 		if (wdev->connect_keys->defmgmt == i)
-			if (rdev->ops->set_default_mgmt_key(wdev->wiphy, dev, i))
+			if (rdev_set_default_mgmt_key(rdev, dev, i))
 				netdev_err(dev, "failed to set mgtdef %d\n", i);
 	}
 
@@ -850,8 +854,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 		cfg80211_process_rdev_events(rdev);
 	}
 
-	err = rdev->ops->change_virtual_intf(&rdev->wiphy, dev,
-					     ntype, flags, params);
+	err = rdev_change_virtual_intf(rdev, dev, ntype, flags, params);
 
 	WARN_ON(!err && dev->ieee80211_ptr->iftype != ntype);
 
@@ -944,14 +947,86 @@ static u32 cfg80211_calculate_bitrate_60g(struct rate_info *rate)
 	return __mcs2bitrate[rate->mcs];
 }
 
+static u32 cfg80211_calculate_bitrate_vht(struct rate_info *rate)
+{
+	static const u32 base[4][10] = {
+		{   6500000,
+		   13000000,
+		   19500000,
+		   26000000,
+		   39000000,
+		   52000000,
+		   58500000,
+		   65000000,
+		   78000000,
+		   0,
+		},
+		{  13500000,
+		   27000000,
+		   40500000,
+		   54000000,
+		   81000000,
+		  108000000,
+		  121500000,
+		  135000000,
+		  162000000,
+		  180000000,
+		},
+		{  29300000,
+		   58500000,
+		   87800000,
+		  117000000,
+		  175500000,
+		  234000000,
+		  263300000,
+		  292500000,
+		  351000000,
+		  390000000,
+		},
+		{  58500000,
+		  117000000,
+		  175500000,
+		  234000000,
+		  351000000,
+		  468000000,
+		  526500000,
+		  585000000,
+		  702000000,
+		  780000000,
+		},
+	};
+	u32 bitrate;
+	int idx;
+
+	if (WARN_ON_ONCE(rate->mcs > 9))
+		return 0;
+
+	idx = rate->flags & (RATE_INFO_FLAGS_160_MHZ_WIDTH |
+			     RATE_INFO_FLAGS_80P80_MHZ_WIDTH) ? 3 :
+		  rate->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH ? 2 :
+		  rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH ? 1 : 0;
+
+	bitrate = base[idx][rate->mcs];
+	bitrate *= rate->nss;
+
+	if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
+		bitrate = (bitrate / 9) * 10;
+
+	/* do NOT round down here */
+	return (bitrate + 50000) / 100000;
+}
+
 u32 cfg80211_calculate_bitrate(struct rate_info *rate)
 {
 	int modulation, streams, bitrate;
 
-	if (!(rate->flags & RATE_INFO_FLAGS_MCS))
+	if (!(rate->flags & RATE_INFO_FLAGS_MCS) &&
+	    !(rate->flags & RATE_INFO_FLAGS_VHT_MCS))
 		return rate->legacy;
 	if (rate->flags & RATE_INFO_FLAGS_60G)
 		return cfg80211_calculate_bitrate_60g(rate);
+	if (rate->flags & RATE_INFO_FLAGS_VHT_MCS)
+		return cfg80211_calculate_bitrate_vht(rate);
 
 	/* the formula below does only work for MCS values smaller than 32 */
 	if (WARN_ON_ONCE(rate->mcs >= 32))
@@ -980,6 +1055,106 @@ u32 cfg80211_calculate_bitrate(struct rate_info *rate)
 }
 EXPORT_SYMBOL(cfg80211_calculate_bitrate);
 
+int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len,
+			  enum ieee80211_p2p_attr_id attr,
+			  u8 *buf, unsigned int bufsize)
+{
+	u8 *out = buf;
+	u16 attr_remaining = 0;
+	bool desired_attr = false;
+	u16 desired_len = 0;
+
+	while (len > 0) {
+		unsigned int iedatalen;
+		unsigned int copy;
+		const u8 *iedata;
+
+		if (len < 2)
+			return -EILSEQ;
+		iedatalen = ies[1];
+		if (iedatalen + 2 > len)
+			return -EILSEQ;
+
+		if (ies[0] != WLAN_EID_VENDOR_SPECIFIC)
+			goto cont;
+
+		if (iedatalen < 4)
+			goto cont;
+
+		iedata = ies + 2;
+
+		/* check WFA OUI, P2P subtype */
+		if (iedata[0] != 0x50 || iedata[1] != 0x6f ||
+		    iedata[2] != 0x9a || iedata[3] != 0x09)
+			goto cont;
+
+		iedatalen -= 4;
+		iedata += 4;
+
+		/* check attribute continuation into this IE */
+		copy = min_t(unsigned int, attr_remaining, iedatalen);
+		if (copy && desired_attr) {
+			desired_len += copy;
+			if (out) {
+				memcpy(out, iedata, min(bufsize, copy));
+				out += min(bufsize, copy);
+				bufsize -= min(bufsize, copy);
+			}
+
+
+			if (copy == attr_remaining)
+				return desired_len;
+		}
+
+		attr_remaining -= copy;
+		if (attr_remaining)
+			goto cont;
+
+		iedatalen -= copy;
+		iedata += copy;
+
+		while (iedatalen > 0) {
+			u16 attr_len;
+
+			/* P2P attribute ID & size must fit */
+			if (iedatalen < 3)
+				return -EILSEQ;
+			desired_attr = iedata[0] == attr;
+			attr_len = get_unaligned_le16(iedata + 1);
+			iedatalen -= 3;
+			iedata += 3;
+
+			copy = min_t(unsigned int, attr_len, iedatalen);
+
+			if (desired_attr) {
+				desired_len += copy;
+				if (out) {
+					memcpy(out, iedata, min(bufsize, copy));
+					out += min(bufsize, copy);
+					bufsize -= min(bufsize, copy);
+				}
+
+				if (copy == attr_len)
+					return desired_len;
+			}
+
+			iedata += copy;
+			iedatalen -= copy;
+			attr_remaining = attr_len - copy;
+		}
+
+ cont:
+		len -= ies[1] + 2;
+		ies += ies[1] + 2;
+	}
+
+	if (attr_remaining && desired_attr)
+		return -EILSEQ;
+
+	return -ENOENT;
+}
+EXPORT_SYMBOL(cfg80211_get_p2p_attr);
+
 int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
 				 u32 beacon_int)
 {
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 494379e..d997d0f 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -19,6 +19,7 @@
 #include <net/cfg80211-wext.h>
 #include "wext-compat.h"
 #include "core.h"
+#include "rdev-ops.h"
 
 int cfg80211_wext_giwname(struct net_device *dev,
 			  struct iw_request_info *info,
@@ -175,7 +176,7 @@ int cfg80211_wext_giwrange(struct net_device *dev,
 	case CFG80211_SIGNAL_TYPE_NONE:
 		break;
 	case CFG80211_SIGNAL_TYPE_MBM:
-		range->max_qual.level = -110;
+		range->max_qual.level = (u8)-110;
 		range->max_qual.qual = 70;
 		range->avg_qual.qual = 35;
 		range->max_qual.updated |= IW_QUAL_DBM;
@@ -301,8 +302,7 @@ int cfg80211_wext_siwrts(struct net_device *dev,
 	else
 		wdev->wiphy->rts_threshold = rts->value;
 
-	err = rdev->ops->set_wiphy_params(wdev->wiphy,
-					  WIPHY_PARAM_RTS_THRESHOLD);
+	err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD);
 	if (err)
 		wdev->wiphy->rts_threshold = orts;
 
@@ -342,8 +342,7 @@ int cfg80211_wext_siwfrag(struct net_device *dev,
 		wdev->wiphy->frag_threshold = frag->value & ~0x1;
 	}
 
-	err = rdev->ops->set_wiphy_params(wdev->wiphy,
-					  WIPHY_PARAM_FRAG_THRESHOLD);
+	err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD);
 	if (err)
 		wdev->wiphy->frag_threshold = ofrag;
 
@@ -396,7 +395,7 @@ static int cfg80211_wext_siwretry(struct net_device *dev,
 	if (!changed)
 		return 0;
 
-	err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
+	err = rdev_set_wiphy_params(rdev, changed);
 	if (err) {
 		wdev->wiphy->retry_short = oshort;
 		wdev->wiphy->retry_long = olong;
@@ -490,8 +489,8 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 			    !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
 				err = -ENOENT;
 			else
-				err = rdev->ops->del_key(&rdev->wiphy, dev, idx,
-							 pairwise, addr);
+				err = rdev_del_key(rdev, dev, idx, pairwise,
+						   addr);
 		}
 		wdev->wext.connect.privacy = false;
 		/*
@@ -525,8 +524,7 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 
 	err = 0;
 	if (wdev->current_bss)
-		err = rdev->ops->add_key(&rdev->wiphy, dev, idx,
-					 pairwise, addr, params);
+		err = rdev_add_key(rdev, dev, idx, pairwise, addr, params);
 	if (err)
 		return err;
 
@@ -552,8 +550,7 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 				__cfg80211_leave_ibss(rdev, wdev->netdev, true);
 				rejoin = true;
 			}
-			err = rdev->ops->set_default_key(&rdev->wiphy, dev,
-							 idx, true, true);
+			err = rdev_set_default_key(rdev, dev, idx, true, true);
 		}
 		if (!err) {
 			wdev->wext.default_key = idx;
@@ -566,8 +563,7 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 	if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
 	    (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
 		if (wdev->current_bss)
-			err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
-							      dev, idx);
+			err = rdev_set_default_mgmt_key(rdev, dev, idx);
 		if (!err)
 			wdev->wext.default_mgmt_key = idx;
 		return err;
@@ -631,8 +627,8 @@ static int cfg80211_wext_siwencode(struct net_device *dev,
 		err = 0;
 		wdev_lock(wdev);
 		if (wdev->current_bss)
-			err = rdev->ops->set_default_key(&rdev->wiphy, dev,
-							 idx, true, true);
+			err = rdev_set_default_key(rdev, dev, idx, true,
+						   true);
 		if (!err)
 			wdev->wext.default_key = idx;
 		wdev_unlock(wdev);
@@ -788,6 +784,9 @@ static int cfg80211_wext_siwfreq(struct net_device *dev,
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	struct cfg80211_chan_def chandef = {
+		.width = NL80211_CHAN_WIDTH_20_NOHT,
+	};
 	int freq, err;
 
 	switch (wdev->iftype) {
@@ -801,8 +800,12 @@ static int cfg80211_wext_siwfreq(struct net_device *dev,
 			return freq;
 		if (freq == 0)
 			return -EINVAL;
+		chandef.center_freq1 = freq;
+		chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
+		if (!chandef.chan)
+			return -EINVAL;
 		mutex_lock(&rdev->devlist_mtx);
-		err = cfg80211_set_monitor_channel(rdev, freq, NL80211_CHAN_NO_HT);
+		err = cfg80211_set_monitor_channel(rdev, &chandef);
 		mutex_unlock(&rdev->devlist_mtx);
 		return err;
 	case NL80211_IFTYPE_MESH_POINT:
@@ -811,9 +814,12 @@ static int cfg80211_wext_siwfreq(struct net_device *dev,
 			return freq;
 		if (freq == 0)
 			return -EINVAL;
+		chandef.center_freq1 = freq;
+		chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
+		if (!chandef.chan)
+			return -EINVAL;
 		mutex_lock(&rdev->devlist_mtx);
-		err = cfg80211_set_mesh_freq(rdev, wdev, freq,
-					     NL80211_CHAN_NO_HT);
+		err = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
 		mutex_unlock(&rdev->devlist_mtx);
 		return err;
 	default:
@@ -827,8 +833,8 @@ static int cfg80211_wext_giwfreq(struct net_device *dev,
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
-	struct ieee80211_channel *chan;
-	enum nl80211_channel_type channel_type;
+	struct cfg80211_chan_def chandef;
+	int ret;
 
 	switch (wdev->iftype) {
 	case NL80211_IFTYPE_STATION:
@@ -839,10 +845,10 @@ static int cfg80211_wext_giwfreq(struct net_device *dev,
 		if (!rdev->ops->get_channel)
 			return -EINVAL;
 
-		chan = rdev->ops->get_channel(wdev->wiphy, wdev, &channel_type);
-		if (!chan)
-			return -EINVAL;
-		freq->m = chan->center_freq;
+		ret = rdev_get_channel(rdev, wdev, &chandef);
+		if (ret)
+			return ret;
+		freq->m = chandef.chan->center_freq;
 		freq->e = 6;
 		return 0;
 	default:
@@ -899,7 +905,7 @@ static int cfg80211_wext_siwtxpower(struct net_device *dev,
 		return 0;
 	}
 
-	return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm));
+	return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm));
 }
 
 static int cfg80211_wext_giwtxpower(struct net_device *dev,
@@ -918,7 +924,7 @@ static int cfg80211_wext_giwtxpower(struct net_device *dev,
 	if (!rdev->ops->get_tx_power)
 		return -EOPNOTSUPP;
 
-	err = rdev->ops->get_tx_power(wdev->wiphy, &val);
+	err = rdev_get_tx_power(rdev, wdev, &val);
 	if (err)
 		return err;
 
@@ -1158,7 +1164,7 @@ static int cfg80211_wext_siwpower(struct net_device *dev,
 			timeout = wrq->value / 1000;
 	}
 
-	err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
+	err = rdev_set_power_mgmt(rdev, dev, ps, timeout);
 	if (err)
 		return err;
 
@@ -1200,7 +1206,7 @@ static int cfg80211_wds_wext_siwap(struct net_device *dev,
 	if (!rdev->ops->set_wds_peer)
 		return -EOPNOTSUPP;
 
-	err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
+	err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data);
 	if (err)
 		return err;
 
@@ -1272,7 +1278,7 @@ static int cfg80211_wext_siwrate(struct net_device *dev,
 	if (!match)
 		return -EINVAL;
 
-	return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
+	return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
 }
 
 static int cfg80211_wext_giwrate(struct net_device *dev,
@@ -1302,7 +1308,7 @@ static int cfg80211_wext_giwrate(struct net_device *dev,
 	if (err)
 		return err;
 
-	err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
+	err = rdev_get_station(rdev, dev, addr, &sinfo);
 	if (err)
 		return err;
 
@@ -1339,7 +1345,7 @@ static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
 	memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
 	wdev_unlock(wdev);
 
-	if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
+	if (rdev_get_station(rdev, dev, bssid, &sinfo))
 		return NULL;
 
 	memset(&wstats, 0, sizeof(wstats));
@@ -1474,19 +1480,19 @@ static int cfg80211_wext_siwpmksa(struct net_device *dev,
 		if (!rdev->ops->set_pmksa)
 			return -EOPNOTSUPP;
 
-		return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
+		return rdev_set_pmksa(rdev, dev, &cfg_pmksa);
 
 	case IW_PMKSA_REMOVE:
 		if (!rdev->ops->del_pmksa)
 			return -EOPNOTSUPP;
 
-		return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
+		return rdev_del_pmksa(rdev, dev, &cfg_pmksa);
 
 	case IW_PMKSA_FLUSH:
 		if (!rdev->ops->flush_pmksa)
 			return -EOPNOTSUPP;
 
-		return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
+		return rdev_flush_pmksa(rdev, dev);
 
 	default:
 		return -EOPNOTSUPP;
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index 1f773f6..fb9622f 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -119,7 +119,16 @@ int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
 	 * channel we disconnected above and reconnect below.
 	 */
 	if (chan && !wdev->wext.connect.ssid_len) {
-		err = cfg80211_set_monitor_channel(rdev, freq, NL80211_CHAN_NO_HT);
+		struct cfg80211_chan_def chandef = {
+			.width = NL80211_CHAN_WIDTH_20_NOHT,
+			.center_freq1 = freq,
+		};
+
+		chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
+		if (chandef.chan)
+			err = cfg80211_set_monitor_channel(rdev, &chandef);
+		else
+			err = -EINVAL;
 		goto out;
 	}
 
@@ -233,13 +242,17 @@ int cfg80211_mgd_wext_giwessid(struct net_device *dev,
 
 	wdev_lock(wdev);
 	if (wdev->current_bss) {
-		const u8 *ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
-						    WLAN_EID_SSID);
+		const u8 *ie;
+
+		rcu_read_lock();
+		ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
+					  WLAN_EID_SSID);
 		if (ie) {
 			data->flags = 1;
 			data->length = ie[1];
 			memcpy(ssid, ie + 2, data->length);
 		}
+		rcu_read_unlock();
 	} else if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
 		data->flags = 1;
 		data->length = wdev->wext.connect.ssid_len;
diff --git a/net/xfrm/xfrm_ipcomp.c b/net/xfrm/xfrm_ipcomp.c
index e5246fb..2906d52 100644
--- a/net/xfrm/xfrm_ipcomp.c
+++ b/net/xfrm/xfrm_ipcomp.c
@@ -276,18 +276,16 @@ static struct crypto_comp * __percpu *ipcomp_alloc_tfms(const char *alg_name)
 	struct crypto_comp * __percpu *tfms;
 	int cpu;
 
-	/* This can be any valid CPU ID so we don't need locking. */
-	cpu = raw_smp_processor_id();
 
 	list_for_each_entry(pos, &ipcomp_tfms_list, list) {
 		struct crypto_comp *tfm;
 
-		tfms = pos->tfms;
-		tfm = *per_cpu_ptr(tfms, cpu);
+		/* This can be any valid CPU ID so we don't need locking. */
+		tfm = __this_cpu_read(*pos->tfms);
 
 		if (!strcmp(crypto_comp_name(tfm), alg_name)) {
 			pos->users++;
-			return tfms;
+			return pos->tfms;
 		}
 	}
 
diff --git a/net/xfrm/xfrm_replay.c b/net/xfrm/xfrm_replay.c
index 3efb07d..765f6fe 100644
--- a/net/xfrm/xfrm_replay.c
+++ b/net/xfrm/xfrm_replay.c
@@ -521,13 +521,12 @@ int xfrm_init_replay(struct xfrm_state *x)
 		    replay_esn->bmp_len * sizeof(__u32) * 8)
 			return -EINVAL;
 
-	if ((x->props.flags & XFRM_STATE_ESN) && replay_esn->replay_window == 0)
-		return -EINVAL;
-
-	if ((x->props.flags & XFRM_STATE_ESN) && x->replay_esn)
-		x->repl = &xfrm_replay_esn;
-	else
-		x->repl = &xfrm_replay_bmp;
+		if (x->props.flags & XFRM_STATE_ESN) {
+			if (replay_esn->replay_window == 0)
+				return -EINVAL;
+			x->repl = &xfrm_replay_esn;
+		} else
+			x->repl = &xfrm_replay_bmp;
 	} else
 		x->repl = &xfrm_replay_legacy;
 
diff --git a/net/xfrm/xfrm_sysctl.c b/net/xfrm/xfrm_sysctl.c
index 380976f..05a6e3d 100644
--- a/net/xfrm/xfrm_sysctl.c
+++ b/net/xfrm/xfrm_sysctl.c
@@ -54,6 +54,10 @@ int __net_init xfrm_sysctl_init(struct net *net)
 	table[2].data = &net->xfrm.sysctl_larval_drop;
 	table[3].data = &net->xfrm.sysctl_acq_expires;
 
+	/* Don't export sysctls to unprivileged users */
+	if (net->user_ns != &init_user_ns)
+		table[0].procname = NULL;
+
 	net->xfrm.sysctl_hdr = register_net_sysctl(net, "net/core", table);
 	if (!net->xfrm.sysctl_hdr)
 		goto out_register;
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 421f984..eb872b2 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -2349,7 +2349,7 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 	link = &xfrm_dispatch[type];
 
 	/* All operations require privileges, even GET */
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	if ((type == (XFRM_MSG_GETSA - XFRM_MSG_BASE) ||