Automatic merge with /usr/src/ntfs-2.6.git.

13 files changed, 116 insertions, 60 deletions

diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index d9b72fd..f564ee9 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -21,10 +21,7 @@
 
 static struct net_device_stats *br_dev_get_stats(struct net_device *dev)
 {
-	struct net_bridge *br;
-
-	br = dev->priv;
-
+	struct net_bridge *br = netdev_priv(dev);
 	return &br->statistics;
 }
 
@@ -54,9 +51,11 @@ int br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 
 static int br_dev_open(struct net_device *dev)
 {
-	netif_start_queue(dev);
+	struct net_bridge *br = netdev_priv(dev);
 
-	br_stp_enable_bridge(dev->priv);
+	br_features_recompute(br);
+	netif_start_queue(dev);
+	br_stp_enable_bridge(br);
 
 	return 0;
 }
@@ -67,7 +66,7 @@ static void br_dev_set_multicast_list(struct net_device *dev)
 
 static int br_dev_stop(struct net_device *dev)
 {
-	br_stp_disable_bridge(dev->priv);
+	br_stp_disable_bridge(netdev_priv(dev));
 
 	netif_stop_queue(dev);
 
@@ -76,7 +75,7 @@ static int br_dev_stop(struct net_device *dev)
 
 static int br_change_mtu(struct net_device *dev, int new_mtu)
 {
-	if ((new_mtu < 68) || new_mtu > br_min_mtu(dev->priv))
+	if (new_mtu < 68 || new_mtu > br_min_mtu(netdev_priv(dev)))
 		return -EINVAL;
 
 	dev->mtu = new_mtu;
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 69872bf..91bb895 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -314,6 +314,28 @@ int br_min_mtu(const struct net_bridge *br)
 	return mtu;
 }
 
+/*
+ * Recomputes features using slave's features
+ */
+void br_features_recompute(struct net_bridge *br)
+{
+	struct net_bridge_port *p;
+	unsigned long features, checksum;
+
+	features = NETIF_F_SG | NETIF_F_FRAGLIST 
+		| NETIF_F_HIGHDMA | NETIF_F_TSO;
+	checksum = NETIF_F_IP_CSUM;	/* least commmon subset */
+
+	list_for_each_entry(p, &br->port_list, list) {
+		if (!(p->dev->features 
+		      & (NETIF_F_IP_CSUM|NETIF_F_NO_CSUM|NETIF_F_HW_CSUM)))
+			checksum = 0;
+		features &= p->dev->features;
+	}
+
+	br->dev->features = features | checksum | NETIF_F_LLTX;
+}
+
 /* called with RTNL */
 int br_add_if(struct net_bridge *br, struct net_device *dev)
 {
@@ -368,6 +390,7 @@ int br_del_if(struct net_bridge *br, struct net_device *dev)
 
 	spin_lock_bh(&br->lock);
 	br_stp_recalculate_bridge_id(br);
+	br_features_recompute(br);
 	spin_unlock_bh(&br->lock);
 
 	return 0;
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 2b1cce4..8f5f2e7 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -26,7 +26,7 @@ static int br_pass_frame_up_finish(struct sk_buff *skb)
 #ifdef CONFIG_NETFILTER_DEBUG
 	skb->nf_debug = 0;
 #endif
-	netif_rx(skb);
+	netif_receive_skb(skb);
 
 	return 0;
 }
@@ -54,6 +54,9 @@ int br_handle_frame_finish(struct sk_buff *skb)
 	struct net_bridge_fdb_entry *dst;
 	int passedup = 0;
 
+	/* insert into forwarding database after filtering to avoid spoofing */
+	br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
+
 	if (br->dev->flags & IFF_PROMISC) {
 		struct sk_buff *skb2;
 
@@ -108,8 +111,7 @@ int br_handle_frame(struct net_bridge_port *p, struct sk_buff **pskb)
 	if (!is_valid_ether_addr(eth_hdr(skb)->h_source))
 		goto err;
 
-	if (p->state == BR_STATE_LEARNING ||
-	    p->state == BR_STATE_FORWARDING)
+	if (p->state == BR_STATE_LEARNING)
 		br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
 
 	if (p->br->stp_enabled &&
diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index f8fb49e..917311c 100644
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -65,6 +65,15 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
 		}
 		break;
 
+	case NETDEV_FEAT_CHANGE:
+		if (br->dev->flags & IFF_UP) 
+			br_features_recompute(br);
+
+		/* could do recursive feature change notification
+		 * but who would care?? 
+		 */
+		break;
+
 	case NETDEV_DOWN:
 		if (br->dev->flags & IFF_UP)
 			br_stp_disable_port(p);
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 54d63f13..bdf95a7 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -174,6 +174,7 @@ extern int br_add_if(struct net_bridge *br,
 extern int br_del_if(struct net_bridge *br,
 	      struct net_device *dev);
 extern int br_min_mtu(const struct net_bridge *br);
+extern void br_features_recompute(struct net_bridge *br);
 
 /* br_input.c */
 extern int br_handle_frame_finish(struct sk_buff *skb);
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index b91a875..d071f1c 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -140,6 +140,9 @@ int br_stp_handle_bpdu(struct sk_buff *skb)
 	struct net_bridge *br = p->br;
 	unsigned char *buf;
 
+	/* insert into forwarding database after filtering to avoid spoofing */
+	br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
+
 	/* need at least the 802 and STP headers */
 	if (!pskb_may_pull(skb, sizeof(header)+1) ||
 	    memcmp(skb->data, header, sizeof(header)))
diff --git a/net/core/dev.c b/net/core/dev.c
index d4d9e26..f15a3ff 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -761,6 +761,18 @@ int dev_change_name(struct net_device *dev, char *newname)
 }
 
 /**
+ *	netdev_features_change - device changes fatures
+ *	@dev: device to cause notification
+ *
+ *	Called to indicate a device has changed features.
+ */
+void netdev_features_change(struct net_device *dev)
+{
+	notifier_call_chain(&netdev_chain, NETDEV_FEAT_CHANGE, dev);
+}
+EXPORT_SYMBOL(netdev_features_change);
+
+/**
  *	netdev_state_change - device changes state
  *	@dev: device to cause notification
  *
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index f05fde9..8ec4848 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -29,7 +29,7 @@ u32 ethtool_op_get_link(struct net_device *dev)
 
 u32 ethtool_op_get_tx_csum(struct net_device *dev)
 {
-	return (dev->features & NETIF_F_IP_CSUM) != 0;
+	return (dev->features & (NETIF_F_IP_CSUM | NETIF_F_HW_CSUM)) != 0;
 }
 
 int ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
@@ -42,6 +42,15 @@ int ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
 	return 0;
 }
 
+int ethtool_op_set_tx_hw_csum(struct net_device *dev, u32 data)
+{
+	if (data)
+		dev->features |= NETIF_F_HW_CSUM;
+	else
+		dev->features &= ~NETIF_F_HW_CSUM;
+
+	return 0;
+}
 u32 ethtool_op_get_sg(struct net_device *dev)
 {
 	return (dev->features & NETIF_F_SG) != 0;
@@ -682,6 +691,7 @@ int dev_ethtool(struct ifreq *ifr)
 	void __user *useraddr = ifr->ifr_data;
 	u32 ethcmd;
 	int rc;
+	unsigned long old_features;
 
 	/*
 	 * XXX: This can be pushed down into the ethtool_* handlers that
@@ -703,6 +713,8 @@ int dev_ethtool(struct ifreq *ifr)
 		if ((rc = dev->ethtool_ops->begin(dev)) < 0)
 			return rc;
 
+	old_features = dev->features;
+
 	switch (ethcmd) {
 	case ETHTOOL_GSET:
 		rc = ethtool_get_settings(dev, useraddr);
@@ -712,7 +724,6 @@ int dev_ethtool(struct ifreq *ifr)
 		break;
 	case ETHTOOL_GDRVINFO:
 		rc = ethtool_get_drvinfo(dev, useraddr);
-
 		break;
 	case ETHTOOL_GREGS:
 		rc = ethtool_get_regs(dev, useraddr);
@@ -801,6 +812,10 @@ int dev_ethtool(struct ifreq *ifr)
 	
 	if(dev->ethtool_ops->complete)
 		dev->ethtool_ops->complete(dev);
+
+	if (old_features != dev->features)
+		netdev_features_change(dev);
+
 	return rc;
 
  ioctl:
@@ -817,3 +832,4 @@ EXPORT_SYMBOL(ethtool_op_get_tx_csum);
 EXPORT_SYMBOL(ethtool_op_set_sg);
 EXPORT_SYMBOL(ethtool_op_set_tso);
 EXPORT_SYMBOL(ethtool_op_set_tx_csum);
+EXPORT_SYMBOL(ethtool_op_set_tx_hw_csum);
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 060f703..910eb4c 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -21,6 +21,7 @@
 #define to_net_dev(class) container_of(class, struct net_device, class_dev)
 
 static const char fmt_hex[] = "%#x\n";
+static const char fmt_long_hex[] = "%#lx\n";
 static const char fmt_dec[] = "%d\n";
 static const char fmt_ulong[] = "%lu\n";
 
@@ -91,7 +92,7 @@ static CLASS_DEVICE_ATTR(field, S_IRUGO, show_##field, NULL)		\
 NETDEVICE_ATTR(addr_len, fmt_dec);
 NETDEVICE_ATTR(iflink, fmt_dec);
 NETDEVICE_ATTR(ifindex, fmt_dec);
-NETDEVICE_ATTR(features, fmt_hex);
+NETDEVICE_ATTR(features, fmt_long_hex);
 NETDEVICE_ATTR(type, fmt_dec);
 
 /* use same locking rules as GIFHWADDR ioctl's */
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 3cc9673..478a301 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -233,11 +233,14 @@ int inet_addr_onlink(struct in_device *in_dev, u32 a, u32 b)
 static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
 			 int destroy)
 {
+	struct in_ifaddr *promote = NULL;
 	struct in_ifaddr *ifa1 = *ifap;
 
 	ASSERT_RTNL();
 
-	/* 1. Deleting primary ifaddr forces deletion all secondaries */
+	/* 1. Deleting primary ifaddr forces deletion all secondaries 
+	 * unless alias promotion is set
+	 **/
 
 	if (!(ifa1->ifa_flags & IFA_F_SECONDARY)) {
 		struct in_ifaddr *ifa;
@@ -251,11 +254,16 @@ static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
 				continue;
 			}
 
-			*ifap1 = ifa->ifa_next;
+			if (!IN_DEV_PROMOTE_SECONDARIES(in_dev)) {
+				*ifap1 = ifa->ifa_next;
 
-			rtmsg_ifa(RTM_DELADDR, ifa);
-			notifier_call_chain(&inetaddr_chain, NETDEV_DOWN, ifa);
-			inet_free_ifa(ifa);
+				rtmsg_ifa(RTM_DELADDR, ifa);
+				notifier_call_chain(&inetaddr_chain, NETDEV_DOWN, ifa);
+				inet_free_ifa(ifa);
+			} else {
+				promote = ifa;
+				break;
+			}
 		}
 	}
 
@@ -281,6 +289,13 @@ static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
 		if (!in_dev->ifa_list)
 			inetdev_destroy(in_dev);
 	}
+
+	if (promote && IN_DEV_PROMOTE_SECONDARIES(in_dev)) {
+		/* not sure if we should send a delete notify first? */
+		promote->ifa_flags &= ~IFA_F_SECONDARY;
+		rtmsg_ifa(RTM_NEWADDR, promote);
+		notifier_call_chain(&inetaddr_chain, NETDEV_UP, promote);
+	}
 }
 
 static int inet_insert_ifa(struct in_ifaddr *ifa)
@@ -1384,6 +1399,15 @@ static struct devinet_sysctl_table {
 			.proc_handler	= &ipv4_doint_and_flush,
 			.strategy	= &ipv4_doint_and_flush_strategy,
 		},
+		{
+			.ctl_name	= NET_IPV4_CONF_PROMOTE_SECONDARIES,
+			.procname	= "promote_secondaries",
+			.data		= &ipv4_devconf.promote_secondaries,
+			.maxlen		= sizeof(int),
+			.mode		= 0644,
+			.proc_handler	= &ipv4_doint_and_flush,
+			.strategy	= &ipv4_doint_and_flush_strategy,
+		},
 	},
 	.devinet_dev = {
 		{
diff --git a/net/ipv4/multipath_drr.c b/net/ipv4/multipath_drr.c
index 9349686..cf2e6bc 100644
--- a/net/ipv4/multipath_drr.c
+++ b/net/ipv4/multipath_drr.c
@@ -57,7 +57,6 @@ struct multipath_device {
 
 static struct multipath_device state[MULTIPATH_MAX_DEVICECANDIDATES];
 static DEFINE_SPINLOCK(state_lock);
-static struct rtable *last_selection = NULL;
 
 static int inline __multipath_findslot(void)
 {
@@ -111,11 +110,6 @@ struct notifier_block drr_dev_notifier = {
 	.notifier_call	= drr_dev_event,
 };
 
-static void drr_remove(struct rtable *rt)
-{
-	if (last_selection == rt)
-		last_selection = NULL;
-}
 
 static void drr_safe_inc(atomic_t *usecount)
 {
@@ -144,14 +138,6 @@ static void drr_select_route(const struct flowi *flp,
 	int devidx = -1;
 	int cur_min_devidx = -1;
 
-       	/* if necessary and possible utilize the old alternative */
-	if ((flp->flags & FLOWI_FLAG_MULTIPATHOLDROUTE) != 0 &&
-	    last_selection != NULL) {
-		result = last_selection;
-		*rp = result;
-		return;
-	}
-
 	/* 1. make sure all alt. nexthops have the same GC related data */
 	/* 2. determine the new candidate to be returned */
 	result = NULL;
@@ -229,12 +215,10 @@ static void drr_select_route(const struct flowi *flp,
 	}
 
 	*rp = result;
-	last_selection = result;
 }
 
 static struct ip_mp_alg_ops drr_ops = {
 	.mp_alg_select_route	=	drr_select_route,
-	.mp_alg_remove		=	drr_remove,
 };
 
 static int __init drr_init(void)
@@ -244,7 +228,7 @@ static int __init drr_init(void)
 	if (err)
 		return err;
 
-	err = multipath_alg_register(&drr_ops, IP_MP_ALG_RR);
+	err = multipath_alg_register(&drr_ops, IP_MP_ALG_DRR);
 	if (err)
 		goto fail;
 
diff --git a/net/ipv4/multipath_rr.c b/net/ipv4/multipath_rr.c
index 554a8256..061b6b2 100644
--- a/net/ipv4/multipath_rr.c
+++ b/net/ipv4/multipath_rr.c
@@ -47,29 +47,12 @@
 #include <net/checksum.h>
 #include <net/ip_mp_alg.h>
 
-#define MULTIPATH_MAX_CANDIDATES 40
-
-static struct rtable* last_used = NULL;
-
-static void rr_remove(struct rtable *rt)
-{
-	if (last_used == rt)
-		last_used = NULL;
-}
-
 static void rr_select_route(const struct flowi *flp,
 			    struct rtable *first, struct rtable **rp)
 {
 	struct rtable *nh, *result, *min_use_cand = NULL;
 	int min_use = -1;
 
-	/* if necessary and possible utilize the old alternative */
-	if ((flp->flags & FLOWI_FLAG_MULTIPATHOLDROUTE) != 0 &&
-	    last_used != NULL) {
-		result = last_used;
-		goto out;
-	}
-
 	/* 1. make sure all alt. nexthops have the same GC related data
 	 * 2. determine the new candidate to be returned
 	 */
@@ -90,15 +73,12 @@ static void rr_select_route(const struct flowi *flp,
 	if (!result)
 		result = first;
 
-out:
-	last_used = result;
 	result->u.dst.__use++;
 	*rp = result;
 }
 
 static struct ip_mp_alg_ops rr_ops = {
 	.mp_alg_select_route	=	rr_select_route,
-	.mp_alg_remove		=	rr_remove,
 };
 
 static int __init rr_init(void)
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index a93f6dc..0e5f7499 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -535,10 +535,12 @@ release:
 		if (err)
 			goto done;
 
-		/* Do not check for fault */
-		if (!freq.flr_label)
-			copy_to_user(&((struct in6_flowlabel_req __user *) optval)->flr_label,
-				     &fl->label, sizeof(fl->label));
+		if (!freq.flr_label) {
+			if (copy_to_user(&((struct in6_flowlabel_req __user *) optval)->flr_label,
+					 &fl->label, sizeof(fl->label))) {
+				/* Intentionally ignore fault. */
+			}
+		}
 
 		sfl1->fl = fl;
 		sfl1->next = np->ipv6_fl_list;