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

Pull networking fixes from David Miller:
 "A moderately sized pile of fixes, some specifically for merge window
  introduced regressions although others are for longer standing items
  and have been queued up for -stable.

  I'm kind of tired of all the RDS protocol bugs over the years, to be
  honest, it's way out of proportion to the number of people who
  actually use it.

   1) Fix missing range initialization in netfilter IPSET, from Jozsef
      Kadlecsik.

   2) ieee80211_local->tim_lock needs to use BH disabling, from Johannes
      Berg.

   3) Fix DMA syncing in SFC driver, from Ben Hutchings.

   4) Fix regression in BOND device MAC address setting, from Jiri
      Pirko.

   5) Missing usb_free_urb in ISDN Hisax driver, from Marina Makienko.

   6) Fix UDP checksumming in bnx2x driver for 57710 and 57711 chips,
      fix from Dmitry Kravkov.

   7) Missing cfgspace_lock initialization in BCMA driver.

   8) Validate parameter size for SCTP assoc stats getsockopt(), from
      Guenter Roeck.

   9) Fix SCTP association hangs, from Lee A Roberts.

  10) Fix jumbo frame handling in r8169, from Francois Romieu.

  11) Fix phy_device memory leak, from Petr Malat.

  12) Omit trailing FCS from frames received in BGMAC driver, from Hauke
      Mehrtens.

  13) Missing socket refcount release in L2TP, from Guillaume Nault.

  14) sctp_endpoint_init should respect passed in gfp_t, rather than use
      GFP_KERNEL unconditionally.  From Dan Carpenter.

  15) Add AISX AX88179 USB driver, from Freddy Xin.

  16) Remove MAINTAINERS entries for drivers deleted during the merge
      window, from Cesar Eduardo Barros.

  17) RDS protocol can try to allocate huge amounts of memory, check
      that the user's request length makes sense, from Cong Wang.

  18) SCTP should use the provided KMALLOC_MAX_SIZE instead of it's own,
      bogus, definition.  From Cong Wang.

  19) Fix deadlocks in FEC driver by moving TX reclaim into NAPI poll,
      from Frank Li.  Also, fix a build error introduced in the merge
      window.

  20) Fix bogus purging of default routes in ipv6, from Lorenzo Colitti.

  21) Don't double count RTT measurements when we leave the TCP receive
      fast path, from Neal Cardwell."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (61 commits)
  tcp: fix double-counted receiver RTT when leaving receiver fast path
  CAIF: fix sparse warning for caif_usb
  rds: simplify a warning message
  net: fec: fix build error in no MXC platform
  net: ipv6: Don't purge default router if accept_ra=2
  net: fec: put tx to napi poll function to fix dead lock
  sctp: use KMALLOC_MAX_SIZE instead of its own MAX_KMALLOC_SIZE
  rds: limit the size allocated by rds_message_alloc()
  MAINTAINERS: remove eexpress
  MAINTAINERS: remove drivers/net/wan/cycx*
  MAINTAINERS: remove 3c505
  caif_dev: fix sparse warnings for caif_flow_cb
  ax88179_178a: ASIX AX88179_178A USB 3.0/2.0 to gigabit ethernet adapter driver
  sctp: use the passed in gfp flags instead GFP_KERNEL
  ipv[4|6]: correct dropwatch false positive in local_deliver_finish
  l2tp: Restore socket refcount when sendmsg succeeds
  net/phy: micrel: Disable asymmetric pause for KSZ9021
  bgmac: omit the fcs
  phy: Fix phy_device_free memory leak
  bnx2x: Fix KR2 work-around condition
  ...

3 files changed, 59 insertions, 32 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 09d96a8..808f5fc 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3285,13 +3285,19 @@ static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
 				     struct cfg80211_chan_def *chandef)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+	struct ieee80211_local *local = wiphy_priv(wiphy);
 	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;
+	if (local->use_chanctx) {
+		chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+		if (chanctx_conf) {
+			*chandef = chanctx_conf->def;
+			ret = 0;
+		}
+	} else if (local->open_count == local->monitors) {
+		*chandef = local->monitor_chandef;
 		ret = 0;
 	}
 	rcu_read_unlock();
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 2c059e5..640afab 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -107,7 +107,7 @@ void ieee80211_recalc_idle(struct ieee80211_local *local)
 
 	lockdep_assert_held(&local->mtx);
 
-	active = !list_empty(&local->chanctx_list);
+	active = !list_empty(&local->chanctx_list) || local->monitors;
 
 	if (!local->ops->remain_on_channel) {
 		list_for_each_entry(roc, &local->roc_list, list) {
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index de8548b..ce78d11 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1231,34 +1231,40 @@ static bool ieee80211_tx_frags(struct ieee80211_local *local,
 		if (local->queue_stop_reasons[q] ||
 		    (!txpending && !skb_queue_empty(&local->pending[q]))) {
 			if (unlikely(info->flags &
-					IEEE80211_TX_INTFL_OFFCHAN_TX_OK &&
-				     local->queue_stop_reasons[q] &
-					~BIT(IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL))) {
+				     IEEE80211_TX_INTFL_OFFCHAN_TX_OK)) {
+				if (local->queue_stop_reasons[q] &
+				    ~BIT(IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL)) {
+					/*
+					 * Drop off-channel frames if queues
+					 * are stopped for any reason other
+					 * than off-channel operation. Never
+					 * queue them.
+					 */
+					spin_unlock_irqrestore(
+						&local->queue_stop_reason_lock,
+						flags);
+					ieee80211_purge_tx_queue(&local->hw,
+								 skbs);
+					return true;
+				}
+			} else {
+
 				/*
-				 * Drop off-channel frames if queues are stopped
-				 * for any reason other than off-channel
-				 * operation. Never queue them.
+				 * Since queue is stopped, queue up frames for
+				 * later transmission from the tx-pending
+				 * tasklet when the queue is woken again.
 				 */
-				spin_unlock_irqrestore(
-					&local->queue_stop_reason_lock, flags);
-				ieee80211_purge_tx_queue(&local->hw, skbs);
-				return true;
+				if (txpending)
+					skb_queue_splice_init(skbs,
+							      &local->pending[q]);
+				else
+					skb_queue_splice_tail_init(skbs,
+								   &local->pending[q]);
+
+				spin_unlock_irqrestore(&local->queue_stop_reason_lock,
+						       flags);
+				return false;
 			}
-
-			/*
-			 * Since queue is stopped, queue up frames for later
-			 * transmission from the tx-pending tasklet when the
-			 * queue is woken again.
-			 */
-			if (txpending)
-				skb_queue_splice_init(skbs, &local->pending[q]);
-			else
-				skb_queue_splice_tail_init(skbs,
-							   &local->pending[q]);
-
-			spin_unlock_irqrestore(&local->queue_stop_reason_lock,
-					       flags);
-			return false;
 		}
 		spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 
@@ -1844,9 +1850,24 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		}
 
 		if (!is_multicast_ether_addr(skb->data)) {
+			struct sta_info *next_hop;
+			bool mpp_lookup = true;
+
 			mpath = mesh_path_lookup(sdata, skb->data);
-			if (!mpath)
+			if (mpath) {
+				mpp_lookup = false;
+				next_hop = rcu_dereference(mpath->next_hop);
+				if (!next_hop ||
+				    !(mpath->flags & (MESH_PATH_ACTIVE |
+						      MESH_PATH_RESOLVING)))
+					mpp_lookup = true;
+			}
+
+			if (mpp_lookup)
 				mppath = mpp_path_lookup(sdata, skb->data);
+
+			if (mppath && mpath)
+				mesh_path_del(mpath->sdata, mpath->dst);
 		}
 
 		/*
@@ -2350,9 +2371,9 @@ static int ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
 	if (local->tim_in_locked_section) {
 		__ieee80211_beacon_add_tim(sdata, ps, skb);
 	} else {
-		spin_lock(&local->tim_lock);
+		spin_lock_bh(&local->tim_lock);
 		__ieee80211_beacon_add_tim(sdata, ps, skb);
-		spin_unlock(&local->tim_lock);
+		spin_unlock_bh(&local->tim_lock);
 	}
 
 	return 0;