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

Pull networking fixes from David Miller:

 1) There was a simplification in the ipv6 ndisc packet sending
    attempted here, which avoided using memory accounting on the
    per-netns ndisc socket for sending NDISC packets.  It did fix some
    important issues, but it causes regressions so it gets reverted here
    too.  Specifically, the problem with this change is that the IPV6
    output path really depends upon there being a valid skb->sk
    attached.

    The reason we want to do this change in some form when we figure out
    how to do it right, is that if a device goes down the ndisc_sk
    socket send queue will fill up and block NDISC packets that we want
    to send to other devices too.  That's really bad behavior.

    Hopefully Thomas can come up with a better version of this change.

 2) Fix a severe TCP performance regression by reverting a change made
    to dev_pick_tx() quite some time ago.  From Eric Dumazet.

 3) TIPC returns wrongly signed error codes, fix from Erik Hugne.

 4) Fix OOPS when doing IPSEC over ipv4 tunnels due to orphaning the
    skb->sk too early.  Fix from Li Hongjun.

 5) RAW ipv4 sockets can use the wrong routing key during lookup, from
    Chris Clark.

 6) Similar to #1 revert an older change that tried to use plain
    alloc_skb() for SYN/ACK TCP packets, this broke the netfilter owner
    mark which needs to see the skb->sk for such frames.  From Phil
    Oester.

 7) BNX2x driver bug fixes from Ariel Elior and Yuval Mintz,
    specifically in the handling of virtual functions.

 8) IPSEC path error propagations to sockets is not done properly when
    we have v4 in v6, and v6 in v4 type rules.  Fix from Hannes Frederic
    Sowa.

 9) Fix missing channel context release in mac80211, from Johannes Berg.

10) Fix network namespace handing wrt.  SCM_RIGHTS, from Andy
    Lutomirski.

11) Fix usage of bogus NAPI weight in jme, netxen, and ps3_gelic
    drivers.  From Michal Schmidt.

12) Hopefully a complete and correct fix for the genetlink dump locking
    and module reference counting.  From Pravin B Shelar.

13) sk_busy_loop() must do a cpu_relax(), from Eliezer Tamir.

14) Fix handling of timestamp offset when restoring a snapshotted TCP
    socket.  From Andrew Vagin.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits)
  net: fec: fix time stamping logic after napi conversion
  net: bridge: convert MLDv2 Query MRC into msecs_to_jiffies for max_delay
  mISDN: return -EINVAL on error in dsp_control_req()
  net: revert 8728c544a9c ("net: dev_pick_tx() fix")
  Revert "ipv6: Don't depend on per socket memory for neighbour discovery messages"
  ipv4 tunnels: fix an oops when using ipip/sit with IPsec
  tipc: set sk_err correctly when connection fails
  tcp: tcp_make_synack() should use sock_wmalloc
  bridge: separate querier and query timer into IGMP/IPv4 and MLD/IPv6 ones
  ipv6: Don't depend on per socket memory for neighbour discovery messages
  ipv4: sendto/hdrincl: don't use destination address found in header
  tcp: don't apply tsoffset if rcv_tsecr is zero
  tcp: initialize rcv_tstamp for restored sockets
  net: xilinx: fix memleak
  net: usb: Add HP hs2434 device to ZLP exception table
  net: add cpu_relax to busy poll loop
  net: stmmac: fixed the pbl setting with DT
  genl: Hold reference on correct module while netlink-dump.
  genl: Fix genl dumpit() locking.
  xfrm: Fix potential null pointer dereference in xdst_queue_output
  ...

28 files changed, 423 insertions, 165 deletions

diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 69363bd37f6..89659d4ed1f 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -71,7 +71,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 
 		mdst = br_mdb_get(br, skb, vid);
 		if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&
-		    br_multicast_querier_exists(br))
+		    br_multicast_querier_exists(br, eth_hdr(skb)))
 			br_multicast_deliver(mdst, skb);
 		else
 			br_flood_deliver(br, skb, false);
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 8c561c0aa63..a2fd37ec35f 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -102,7 +102,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
 	} else if (is_multicast_ether_addr(dest)) {
 		mdst = br_mdb_get(br, skb, vid);
 		if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&
-		    br_multicast_querier_exists(br)) {
+		    br_multicast_querier_exists(br, eth_hdr(skb))) {
 			if ((mdst && mdst->mglist) ||
 			    br_multicast_is_router(br))
 				skb2 = skb;
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 0daae3ec235..6319c4333c3 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -414,16 +414,20 @@ static int __br_mdb_del(struct net_bridge *br, struct br_mdb_entry *entry)
 	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))
+	if (ip.proto == htons(ETH_P_IP)) {
+		if (timer_pending(&br->ip4_querier.timer))
+			return -EBUSY;
+
 		ip.u.ip4 = entry->addr.u.ip4;
 #if IS_ENABLED(CONFIG_IPV6)
-	else
+	} else {
+		if (timer_pending(&br->ip6_querier.timer))
+			return -EBUSY;
+
 		ip.u.ip6 = entry->addr.u.ip6;
 #endif
+	}
 
 	spin_lock_bh(&br->multicast_lock);
 	mdb = mlock_dereference(br->mdb, br);
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 08e576ada0b..bbcb4358249 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -33,7 +33,8 @@
 
 #include "br_private.h"
 
-static void br_multicast_start_querier(struct net_bridge *br);
+static void br_multicast_start_querier(struct net_bridge *br,
+				       struct bridge_mcast_query *query);
 unsigned int br_mdb_rehash_seq;
 
 static inline int br_ip_equal(const struct br_ip *a, const struct br_ip *b)
@@ -755,20 +756,35 @@ static void br_multicast_local_router_expired(unsigned long data)
 {
 }
 
-static void br_multicast_querier_expired(unsigned long data)
+static void br_multicast_querier_expired(struct net_bridge *br,
+					 struct bridge_mcast_query *query)
 {
-	struct net_bridge *br = (void *)data;
-
 	spin_lock(&br->multicast_lock);
 	if (!netif_running(br->dev) || br->multicast_disabled)
 		goto out;
 
-	br_multicast_start_querier(br);
+	br_multicast_start_querier(br, query);
 
 out:
 	spin_unlock(&br->multicast_lock);
 }
 
+static void br_ip4_multicast_querier_expired(unsigned long data)
+{
+	struct net_bridge *br = (void *)data;
+
+	br_multicast_querier_expired(br, &br->ip4_query);
+}
+
+#if IS_ENABLED(CONFIG_IPV6)
+static void br_ip6_multicast_querier_expired(unsigned long data)
+{
+	struct net_bridge *br = (void *)data;
+
+	br_multicast_querier_expired(br, &br->ip6_query);
+}
+#endif
+
 static void __br_multicast_send_query(struct net_bridge *br,
 				      struct net_bridge_port *port,
 				      struct br_ip *ip)
@@ -789,37 +805,45 @@ static void __br_multicast_send_query(struct net_bridge *br,
 }
 
 static void br_multicast_send_query(struct net_bridge *br,
-				    struct net_bridge_port *port, u32 sent)
+				    struct net_bridge_port *port,
+				    struct bridge_mcast_query *query)
 {
 	unsigned long time;
 	struct br_ip br_group;
+	struct bridge_mcast_querier *querier = NULL;
 
 	if (!netif_running(br->dev) || br->multicast_disabled ||
-	    !br->multicast_querier ||
-	    timer_pending(&br->multicast_querier_timer))
+	    !br->multicast_querier)
 		return;
 
 	memset(&br_group.u, 0, sizeof(br_group.u));
 
-	br_group.proto = htons(ETH_P_IP);
-	__br_multicast_send_query(br, port, &br_group);
-
+	if (port ? (query == &port->ip4_query) :
+		   (query == &br->ip4_query)) {
+		querier = &br->ip4_querier;
+		br_group.proto = htons(ETH_P_IP);
 #if IS_ENABLED(CONFIG_IPV6)
-	br_group.proto = htons(ETH_P_IPV6);
-	__br_multicast_send_query(br, port, &br_group);
+	} else {
+		querier = &br->ip6_querier;
+		br_group.proto = htons(ETH_P_IPV6);
 #endif
+	}
+
+	if (!querier || timer_pending(&querier->timer))
+		return;
+
+	__br_multicast_send_query(br, port, &br_group);
 
 	time = jiffies;
-	time += sent < br->multicast_startup_query_count ?
+	time += query->startup_sent < br->multicast_startup_query_count ?
 		br->multicast_startup_query_interval :
 		br->multicast_query_interval;
-	mod_timer(port ? &port->multicast_query_timer :
-			 &br->multicast_query_timer, time);
+	mod_timer(&query->timer, time);
 }
 
-static void br_multicast_port_query_expired(unsigned long data)
+static void br_multicast_port_query_expired(struct net_bridge_port *port,
+					    struct bridge_mcast_query *query)
 {
-	struct net_bridge_port *port = (void *)data;
 	struct net_bridge *br = port->br;
 
 	spin_lock(&br->multicast_lock);
@@ -827,25 +851,43 @@ static void br_multicast_port_query_expired(unsigned long data)
 	    port->state == BR_STATE_BLOCKING)
 		goto out;
 
-	if (port->multicast_startup_queries_sent <
-	    br->multicast_startup_query_count)
-		port->multicast_startup_queries_sent++;
+	if (query->startup_sent < br->multicast_startup_query_count)
+		query->startup_sent++;
 
-	br_multicast_send_query(port->br, port,
-				port->multicast_startup_queries_sent);
+	br_multicast_send_query(port->br, port, query);
 
 out:
 	spin_unlock(&br->multicast_lock);
 }
 
+static void br_ip4_multicast_port_query_expired(unsigned long data)
+{
+	struct net_bridge_port *port = (void *)data;
+
+	br_multicast_port_query_expired(port, &port->ip4_query);
+}
+
+#if IS_ENABLED(CONFIG_IPV6)
+static void br_ip6_multicast_port_query_expired(unsigned long data)
+{
+	struct net_bridge_port *port = (void *)data;
+
+	br_multicast_port_query_expired(port, &port->ip6_query);
+}
+#endif
+
 void br_multicast_add_port(struct net_bridge_port *port)
 {
 	port->multicast_router = 1;
 
 	setup_timer(&port->multicast_router_timer, br_multicast_router_expired,
 		    (unsigned long)port);
-	setup_timer(&port->multicast_query_timer,
-		    br_multicast_port_query_expired, (unsigned long)port);
+	setup_timer(&port->ip4_query.timer, br_ip4_multicast_port_query_expired,
+		    (unsigned long)port);
+#if IS_ENABLED(CONFIG_IPV6)
+	setup_timer(&port->ip6_query.timer, br_ip6_multicast_port_query_expired,
+		    (unsigned long)port);
+#endif
 }
 
 void br_multicast_del_port(struct net_bridge_port *port)
@@ -853,13 +895,13 @@ void br_multicast_del_port(struct net_bridge_port *port)
 	del_timer_sync(&port->multicast_router_timer);
 }
 
-static void __br_multicast_enable_port(struct net_bridge_port *port)
+static void br_multicast_enable(struct bridge_mcast_query *query)
 {
-	port->multicast_startup_queries_sent = 0;
+	query->startup_sent = 0;
 
-	if (try_to_del_timer_sync(&port->multicast_query_timer) >= 0 ||
-	    del_timer(&port->multicast_query_timer))
-		mod_timer(&port->multicast_query_timer, jiffies);
+	if (try_to_del_timer_sync(&query->timer) >= 0 ||
+	    del_timer(&query->timer))
+		mod_timer(&query->timer, jiffies);
 }
 
 void br_multicast_enable_port(struct net_bridge_port *port)
@@ -870,7 +912,10 @@ void br_multicast_enable_port(struct net_bridge_port *port)
 	if (br->multicast_disabled || !netif_running(br->dev))
 		goto out;
 
-	__br_multicast_enable_port(port);
+	br_multicast_enable(&port->ip4_query);
+#if IS_ENABLED(CONFIG_IPV6)
+	br_multicast_enable(&port->ip6_query);
+#endif
 
 out:
 	spin_unlock(&br->multicast_lock);
@@ -889,7 +934,10 @@ void br_multicast_disable_port(struct net_bridge_port *port)
 	if (!hlist_unhashed(&port->rlist))
 		hlist_del_init_rcu(&port->rlist);
 	del_timer(&port->multicast_router_timer);
-	del_timer(&port->multicast_query_timer);
+	del_timer(&port->ip4_query.timer);
+#if IS_ENABLED(CONFIG_IPV6)
+	del_timer(&port->ip6_query.timer);
+#endif
 	spin_unlock(&br->multicast_lock);
 }
 
@@ -1014,14 +1062,15 @@ static int br_ip6_multicast_mld2_report(struct net_bridge *br,
 }
 #endif
 
-static void br_multicast_update_querier_timer(struct net_bridge *br,
-					      unsigned long max_delay)
+static void
+br_multicast_update_querier_timer(struct net_bridge *br,
+				  struct bridge_mcast_querier *querier,
+				  unsigned long max_delay)
 {
-	if (!timer_pending(&br->multicast_querier_timer))
-		br->multicast_querier_delay_time = jiffies + max_delay;
+	if (!timer_pending(&querier->timer))
+		querier->delay_time = jiffies + max_delay;
 
-	mod_timer(&br->multicast_querier_timer,
-		  jiffies + br->multicast_querier_interval);
+	mod_timer(&querier->timer, jiffies + br->multicast_querier_interval);
 }
 
 /*
@@ -1074,12 +1123,13 @@ timer:
 
 static void br_multicast_query_received(struct net_bridge *br,
 					struct net_bridge_port *port,
+					struct bridge_mcast_querier *querier,
 					int saddr,
 					unsigned long max_delay)
 {
 	if (saddr)
-		br_multicast_update_querier_timer(br, max_delay);
-	else if (timer_pending(&br->multicast_querier_timer))
+		br_multicast_update_querier_timer(br, querier, max_delay);
+	else if (timer_pending(&querier->timer))
 		return;
 
 	br_multicast_mark_router(br, port);
@@ -1129,7 +1179,8 @@ static int br_ip4_multicast_query(struct net_bridge *br,
 			    IGMPV3_MRC(ih3->code) * (HZ / IGMP_TIMER_SCALE) : 1;
 	}
 
-	br_multicast_query_received(br, port, !!iph->saddr, max_delay);
+	br_multicast_query_received(br, port, &br->ip4_querier, !!iph->saddr,
+				    max_delay);
 
 	if (!group)
 		goto out;
@@ -1203,11 +1254,12 @@ static int br_ip6_multicast_query(struct net_bridge *br,
 		mld2q = (struct mld2_query *)icmp6_hdr(skb);
 		if (!mld2q->mld2q_nsrcs)
 			group = &mld2q->mld2q_mca;
-		max_delay = mld2q->mld2q_mrc ? MLDV2_MRC(ntohs(mld2q->mld2q_mrc)) : 1;
+
+		max_delay = max(msecs_to_jiffies(MLDV2_MRC(ntohs(mld2q->mld2q_mrc))), 1UL);
 	}
 
-	br_multicast_query_received(br, port, !ipv6_addr_any(&ip6h->saddr),
-				    max_delay);
+	br_multicast_query_received(br, port, &br->ip6_querier,
+				    !ipv6_addr_any(&ip6h->saddr), max_delay);
 
 	if (!group)
 		goto out;
@@ -1244,7 +1296,9 @@ out:
 
 static void br_multicast_leave_group(struct net_bridge *br,
 				     struct net_bridge_port *port,
-				     struct br_ip *group)
+				     struct br_ip *group,
+				     struct bridge_mcast_querier *querier,
+				     struct bridge_mcast_query *query)
 {
 	struct net_bridge_mdb_htable *mdb;
 	struct net_bridge_mdb_entry *mp;
@@ -1255,7 +1309,7 @@ static void br_multicast_leave_group(struct net_bridge *br,
 	spin_lock(&br->multicast_lock);
 	if (!netif_running(br->dev) ||
 	    (port && port->state == BR_STATE_DISABLED) ||
-	    timer_pending(&br->multicast_querier_timer))
+	    timer_pending(&querier->timer))
 		goto out;
 
 	mdb = mlock_dereference(br->mdb, br);
@@ -1263,14 +1317,13 @@ static void br_multicast_leave_group(struct net_bridge *br,
 	if (!mp)
 		goto out;
 
-	if (br->multicast_querier &&
-	    !timer_pending(&br->multicast_querier_timer)) {
+	if (br->multicast_querier) {
 		__br_multicast_send_query(br, port, &mp->addr);
 
 		time = jiffies + br->multicast_last_member_count *
 				 br->multicast_last_member_interval;
-		mod_timer(port ? &port->multicast_query_timer :
-				 &br->multicast_query_timer, time);
+
+		mod_timer(&query->timer, time);
 
 		for (p = mlock_dereference(mp->ports, br);
 		     p != NULL;
@@ -1323,7 +1376,6 @@ static void br_multicast_leave_group(struct net_bridge *br,
 			mod_timer(&mp->timer, time);
 		}
 	}
-
 out:
 	spin_unlock(&br->multicast_lock);
 }
@@ -1334,6 +1386,8 @@ static void br_ip4_multicast_leave_group(struct net_bridge *br,
 					 __u16 vid)
 {
 	struct br_ip br_group;
+	struct bridge_mcast_query *query = port ? &port->ip4_query :
+						  &br->ip4_query;
 
 	if (ipv4_is_local_multicast(group))
 		return;
@@ -1342,7 +1396,7 @@ static void br_ip4_multicast_leave_group(struct net_bridge *br,
 	br_group.proto = htons(ETH_P_IP);
 	br_group.vid = vid;
 
-	br_multicast_leave_group(br, port, &br_group);
+	br_multicast_leave_group(br, port, &br_group, &br->ip4_querier, query);
 }
 
 #if IS_ENABLED(CONFIG_IPV6)
@@ -1352,6 +1406,9 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br,
 					 __u16 vid)
 {
 	struct br_ip br_group;
+	struct bridge_mcast_query *query = port ? &port->ip6_query :
+						  &br->ip6_query;
+
 
 	if (!ipv6_is_transient_multicast(group))
 		return;
@@ -1360,7 +1417,7 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br,
 	br_group.proto = htons(ETH_P_IPV6);
 	br_group.vid = vid;
 
-	br_multicast_leave_group(br, port, &br_group);
+	br_multicast_leave_group(br, port, &br_group, &br->ip6_querier, query);
 }
 #endif
 
@@ -1622,19 +1679,32 @@ int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
 	return 0;
 }
 
-static void br_multicast_query_expired(unsigned long data)
+static void br_multicast_query_expired(struct net_bridge *br,
+				       struct bridge_mcast_query *query)
+{
+	spin_lock(&br->multicast_lock);
+	if (query->startup_sent < br->multicast_startup_query_count)
+		query->startup_sent++;
+
+	br_multicast_send_query(br, NULL, query);
+	spin_unlock(&br->multicast_lock);
+}
+
+static void br_ip4_multicast_query_expired(unsigned long data)
 {
 	struct net_bridge *br = (void *)data;
 
-	spin_lock(&br->multicast_lock);
-	if (br->multicast_startup_queries_sent <
-	    br->multicast_startup_query_count)
-		br->multicast_startup_queries_sent++;
+	br_multicast_query_expired(br, &br->ip4_query);
+}
 
-	br_multicast_send_query(br, NULL, br->multicast_startup_queries_sent);
+#if IS_ENABLED(CONFIG_IPV6)
+static void br_ip6_multicast_query_expired(unsigned long data)
+{
+	struct net_bridge *br = (void *)data;
 
-	spin_unlock(&br->multicast_lock);
+	br_multicast_query_expired(br, &br->ip6_query);
 }
+#endif
 
 void br_multicast_init(struct net_bridge *br)
 {
@@ -1654,25 +1724,43 @@ void br_multicast_init(struct net_bridge *br)
 	br->multicast_querier_interval = 255 * HZ;
 	br->multicast_membership_interval = 260 * HZ;
 
-	br->multicast_querier_delay_time = 0;
+	br->ip4_querier.delay_time = 0;
+#if IS_ENABLED(CONFIG_IPV6)
+	br->ip6_querier.delay_time = 0;
+#endif
 
 	spin_lock_init(&br->multicast_lock);
 	setup_timer(&br->multicast_router_timer,
 		    br_multicast_local_router_expired, 0);
-	setup_timer(&br->multicast_querier_timer,
-		    br_multicast_querier_expired, (unsigned long)br);
-	setup_timer(&br->multicast_query_timer, br_multicast_query_expired,
+	setup_timer(&br->ip4_querier.timer, br_ip4_multicast_querier_expired,
+		    (unsigned long)br);
+	setup_timer(&br->ip4_query.timer, br_ip4_multicast_query_expired,
 		    (unsigned long)br);
+#if IS_ENABLED(CONFIG_IPV6)
+	setup_timer(&br->ip6_querier.timer, br_ip6_multicast_querier_expired,
+		    (unsigned long)br);
+	setup_timer(&br->ip6_query.timer, br_ip6_multicast_query_expired,
+		    (unsigned long)br);
+#endif
 }
 
-void br_multicast_open(struct net_bridge *br)
+static void __br_multicast_open(struct net_bridge *br,
+				struct bridge_mcast_query *query)
 {
-	br->multicast_startup_queries_sent = 0;
+	query->startup_sent = 0;
 
 	if (br->multicast_disabled)
 		return;
 
-	mod_timer(&br->multicast_query_timer, jiffies);
+	mod_timer(&query->timer, jiffies);
+}
+
+void br_multicast_open(struct net_bridge *br)
+{
+	__br_multicast_open(br, &br->ip4_query);
+#if IS_ENABLED(CONFIG_IPV6)
+	__br_multicast_open(br, &br->ip6_query);
+#endif
 }
 
 void br_multicast_stop(struct net_bridge *br)
@@ -1684,8 +1772,12 @@ void br_multicast_stop(struct net_bridge *br)
 	int i;
 
 	del_timer_sync(&br->multicast_router_timer);
-	del_timer_sync(&br->multicast_querier_timer);
-	del_timer_sync(&br->multicast_query_timer);
+	del_timer_sync(&br->ip4_querier.timer);
+	del_timer_sync(&br->ip4_query.timer);
+#if IS_ENABLED(CONFIG_IPV6)
+	del_timer_sync(&br->ip6_querier.timer);
+	del_timer_sync(&br->ip6_query.timer);
+#endif
 
 	spin_lock_bh(&br->multicast_lock);
 	mdb = mlock_dereference(br->mdb, br);
@@ -1788,18 +1880,24 @@ unlock:
 	return err;
 }
 
-static void br_multicast_start_querier(struct net_bridge *br)
+static void br_multicast_start_querier(struct net_bridge *br,
+				       struct bridge_mcast_query *query)
 {
 	struct net_bridge_port *port;
 
-	br_multicast_open(br);
+	__br_multicast_open(br, query);
 
 	list_for_each_entry(port, &br->port_list, list) {
 		if (port->state == BR_STATE_DISABLED ||
 		    port->state == BR_STATE_BLOCKING)
 			continue;
 
-		__br_multicast_enable_port(port);
+		if (query == &br->ip4_query)
+			br_multicast_enable(&port->ip4_query);
+#if IS_ENABLED(CONFIG_IPV6)
+		else
+			br_multicast_enable(&port->ip6_query);
+#endif
 	}
 }
 
@@ -1834,7 +1932,10 @@ rollback:
 			goto rollback;
 	}
 
-	br_multicast_start_querier(br);
+	br_multicast_start_querier(br, &br->ip4_query);
+#if IS_ENABLED(CONFIG_IPV6)
+	br_multicast_start_querier(br, &br->ip6_query);
+#endif
 
 unlock:
 	spin_unlock_bh(&br->multicast_lock);
@@ -1857,10 +1958,18 @@ int br_multicast_set_querier(struct net_bridge *br, unsigned long val)
 		goto unlock;
 
 	max_delay = br->multicast_query_response_interval;
-	if (!timer_pending(&br->multicast_querier_timer))
-		br->multicast_querier_delay_time = jiffies + max_delay;
 
-	br_multicast_start_querier(br);
+	if (!timer_pending(&br->ip4_querier.timer))
+		br->ip4_querier.delay_time = jiffies + max_delay;
+
+	br_multicast_start_querier(br, &br->ip4_query);
+
+#if IS_ENABLED(CONFIG_IPV6)
+	if (!timer_pending(&br->ip6_querier.timer))
+		br->ip6_querier.delay_time = jiffies + max_delay;
+
+	br_multicast_start_querier(br, &br->ip6_query);
+#endif
 
 unlock:
 	spin_unlock_bh(&br->multicast_lock);
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 2f7da41851b..263ba903446 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -66,6 +66,20 @@ struct br_ip
 	__u16		vid;
 };
 
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+/* our own querier */
+struct bridge_mcast_query {
+	struct timer_list	timer;
+	u32			startup_sent;
+};
+
+/* other querier */
+struct bridge_mcast_querier {
+	struct timer_list		timer;
+	unsigned long			delay_time;
+};
+#endif
+
 struct net_port_vlans {
 	u16				port_idx;
 	u16				pvid;
@@ -162,10 +176,12 @@ struct net_bridge_port
 #define BR_FLOOD		0x00000040
 
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
-	u32				multicast_startup_queries_sent;
+	struct bridge_mcast_query	ip4_query;
+#if IS_ENABLED(CONFIG_IPV6)
+	struct bridge_mcast_query	ip6_query;
+#endif /* IS_ENABLED(CONFIG_IPV6) */
 	unsigned char			multicast_router;
 	struct timer_list		multicast_router_timer;
-	struct timer_list		multicast_query_timer;
 	struct hlist_head		mglist;
 	struct hlist_node		rlist;
 #endif
@@ -258,7 +274,6 @@ struct net_bridge
 	u32				hash_max;
 
 	u32				multicast_last_member_count;
-	u32				multicast_startup_queries_sent;
 	u32				multicast_startup_query_count;
 
 	unsigned long			multicast_last_member_interval;
@@ -267,15 +282,18 @@ struct net_bridge
 	unsigned long			multicast_query_interval;
 	unsigned long			multicast_query_response_interval;
 	unsigned long			multicast_startup_query_interval;
-	unsigned long			multicast_querier_delay_time;
 
 	spinlock_t			multicast_lock;
 	struct net_bridge_mdb_htable __rcu *mdb;
 	struct hlist_head		router_list;
 
 	struct timer_list		multicast_router_timer;
-	struct timer_list		multicast_querier_timer;
-	struct timer_list		multicast_query_timer;
+	struct bridge_mcast_querier	ip4_querier;
+	struct bridge_mcast_query	ip4_query;
+#if IS_ENABLED(CONFIG_IPV6)
+	struct bridge_mcast_querier	ip6_querier;
+	struct bridge_mcast_query	ip6_query;
+#endif /* IS_ENABLED(CONFIG_IPV6) */
 #endif
 
 	struct timer_list		hello_timer;
@@ -503,11 +521,27 @@ static inline bool br_multicast_is_router(struct net_bridge *br)
 		timer_pending(&br->multicast_router_timer));
 }
 
-static inline bool br_multicast_querier_exists(struct net_bridge *br)
+static inline bool
+__br_multicast_querier_exists(struct net_bridge *br,
+			      struct bridge_mcast_querier *querier)
+{
+	return time_is_before_jiffies(querier->delay_time) &&
+	       (br->multicast_querier || timer_pending(&querier->timer));
+}
+
+static inline bool br_multicast_querier_exists(struct net_bridge *br,
+					       struct ethhdr *eth)
 {
-	return time_is_before_jiffies(br->multicast_querier_delay_time) &&
-	       (br->multicast_querier ||
-		timer_pending(&br->multicast_querier_timer));
+	switch (eth->h_proto) {
+	case (htons(ETH_P_IP)):
+		return __br_multicast_querier_exists(br, &br->ip4_querier);
+#if IS_ENABLED(CONFIG_IPV6)
+	case (htons(ETH_P_IPV6)):
+		return __br_multicast_querier_exists(br, &br->ip6_querier);
+#endif
+	default:
+		return false;
+	}
 }
 #else
 static inline int br_multicast_rcv(struct net_bridge *br,
@@ -565,7 +599,8 @@ static inline bool br_multicast_is_router(struct net_bridge *br)
 {
 	return 0;
 }
-static inline bool br_multicast_querier_exists(struct net_bridge *br)
+static inline bool br_multicast_querier_exists(struct net_bridge *br,
+					       struct ethhdr *eth)
 {
 	return false;
 }
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index b84a1b155bc..d12e3a9a535 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -346,14 +346,9 @@ u16 __netdev_pick_tx(struct net_device *dev, struct sk_buff *skb)
 		if (new_index < 0)
 			new_index = skb_tx_hash(dev, skb);
 
-		if (queue_index != new_index && sk) {
-			struct dst_entry *dst =
-				    rcu_dereference_check(sk->sk_dst_cache, 1);
-
-			if (dst && skb_dst(skb) == dst)
-				sk_tx_queue_set(sk, queue_index);
-
-		}
+		if (queue_index != new_index && sk &&
+		    rcu_access_pointer(sk->sk_dst_cache))
+			sk_tx_queue_set(sk, queue_index);
 
 		queue_index = new_index;
 	}
diff --git a/net/core/scm.c b/net/core/scm.c
index 03795d0147f..b4da80b1cc0 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -54,7 +54,7 @@ static __inline__ int scm_check_creds(struct ucred *creds)
 		return -EINVAL;
 
 	if ((creds->pid == task_tgid_vnr(current) ||
-	     ns_capable(current->nsproxy->pid_ns->user_ns, CAP_SYS_ADMIN)) &&
+	     ns_capable(task_active_pid_ns(current)->user_ns, CAP_SYS_ADMIN)) &&
 	    ((uid_eq(uid, cred->uid)   || uid_eq(uid, cred->euid) ||
 	      uid_eq(uid, cred->suid)) || nsown_capable(CAP_SETUID)) &&
 	    ((gid_eq(gid, cred->gid)   || gid_eq(gid, cred->egid) ||
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 4bcabf3ab4c..9ee17e3d11c 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -211,14 +211,6 @@ static inline int ip_finish_output2(struct sk_buff *skb)
 	return -EINVAL;
 }
 
-static inline int ip_skb_dst_mtu(struct sk_buff *skb)
-{
-	struct inet_sock *inet = skb->sk ? inet_sk(skb->sk) : NULL;
-
-	return (inet && inet->pmtudisc == IP_PMTUDISC_PROBE) ?
-	       skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
-}
-
 static int ip_finish_output(struct sk_buff *skb)
 {
 #if defined(CONFIG_NETFILTER) && defined(CONFIG_XFRM)
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 51fc2a1dcdd..b3ac3c3f621 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -190,15 +190,14 @@ static int ipip_rcv(struct sk_buff *skb)
 	struct ip_tunnel *tunnel;
 	const struct iphdr *iph;
 
-	if (iptunnel_pull_header(skb, 0, tpi.proto))
-		goto drop;
-
 	iph = ip_hdr(skb);
 	tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY,
 			iph->saddr, iph->daddr, 0);
 	if (tunnel) {
 		if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb))
 			goto drop;
+		if (iptunnel_pull_header(skb, 0, tpi.proto))
+			goto drop;
 		return ip_tunnel_rcv(tunnel, skb, &tpi, log_ecn_error);
 	}
 
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index dd44e0ab600..61e60d67adc 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -571,7 +571,8 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	flowi4_init_output(&fl4, ipc.oif, sk->sk_mark, tos,
 			   RT_SCOPE_UNIVERSE,
 			   inet->hdrincl ? IPPROTO_RAW : sk->sk_protocol,
-			   inet_sk_flowi_flags(sk) | FLOWI_FLAG_CAN_SLEEP,
+			   inet_sk_flowi_flags(sk) | FLOWI_FLAG_CAN_SLEEP |
+			    (inet->hdrincl ? FLOWI_FLAG_KNOWN_NH : 0),
 			   daddr, sad