Merge branch 'master' of /home/davem/src/GIT/linux-2.6/

36 files changed, 489 insertions, 297 deletions

diff --git a/net/802/tr.c b/net/802/tr.c
index 158150fee46..f47ae289d83 100644
--- a/net/802/tr.c
+++ b/net/802/tr.c
@@ -668,3 +668,5 @@ module_init(rif_init);
 
 EXPORT_SYMBOL(tr_type_trans);
 EXPORT_SYMBOL(alloc_trdev);
+
+MODULE_LICENSE("GPL");
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index e9db889d622..2886d2fb9ab 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -1,12 +1,16 @@
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
 #include <linux/if_vlan.h>
+#include <linux/netpoll.h>
 #include "vlan.h"
 
 /* VLAN rx hw acceleration helper.  This acts like netif_{rx,receive_skb}(). */
 int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
 		      u16 vlan_tci, int polling)
 {
+	if (netpoll_rx(skb))
+		return NET_RX_DROP;
+
 	if (skb_bond_should_drop(skb))
 		goto drop;
 
@@ -100,6 +104,9 @@ int vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp,
 {
 	int err = NET_RX_SUCCESS;
 
+	if (netpoll_receive_skb(skb))
+		return NET_RX_DROP;
+
 	switch (vlan_gro_common(napi, grp, vlan_tci, skb)) {
 	case -1:
 		return netif_receive_skb(skb);
@@ -126,6 +133,9 @@ int vlan_gro_frags(struct napi_struct *napi, struct vlan_group *grp,
 	if (!skb)
 		goto out;
 
+	if (netpoll_receive_skb(skb))
+		goto out;
+
 	err = NET_RX_SUCCESS;
 
 	switch (vlan_gro_common(napi, grp, vlan_tci, skb)) {
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 4a19acd3a32..1b34135cf99 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -553,7 +553,7 @@ static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa)
 	int err = 0;
 
 	if (netif_device_present(real_dev) && ops->ndo_neigh_setup)
-		err = ops->ndo_neigh_setup(dev, pa);
+		err = ops->ndo_neigh_setup(real_dev, pa);
 
 	return err;
 }
@@ -639,6 +639,7 @@ static int vlan_dev_init(struct net_device *dev)
 		dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
 		dev->netdev_ops         = &vlan_netdev_ops;
 	}
+	netdev_resync_ops(dev);
 
 	if (is_vlan_dev(real_dev))
 		subclass = 1;
diff --git a/net/core/dev.c b/net/core/dev.c
index a17e0066236..f1129706ce7 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2267,12 +2267,6 @@ int netif_receive_skb(struct sk_buff *skb)
 
 	rcu_read_lock();
 
-	/* Don't receive packets in an exiting network namespace */
-	if (!net_alive(dev_net(skb->dev))) {
-		kfree_skb(skb);
-		goto out;
-	}
-
 #ifdef CONFIG_NET_CLS_ACT
 	if (skb->tc_verd & TC_NCLS) {
 		skb->tc_verd = CLR_TC_NCLS(skb->tc_verd);
@@ -2488,6 +2482,9 @@ static int __napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 
 int napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
+	if (netpoll_receive_skb(skb))
+		return NET_RX_DROP;
+
 	switch (__napi_gro_receive(napi, skb)) {
 	case -1:
 		return netif_receive_skb(skb);
@@ -2558,6 +2555,9 @@ int napi_gro_frags(struct napi_struct *napi, struct napi_gro_fraginfo *info)
 	if (!skb)
 		goto out;
 
+	if (netpoll_receive_skb(skb))
+		goto out;
+
 	err = NET_RX_SUCCESS;
 
 	switch (__napi_gro_receive(napi, skb)) {
@@ -4282,6 +4282,39 @@ unsigned long netdev_fix_features(unsigned long features, const char *name)
 }
 EXPORT_SYMBOL(netdev_fix_features);
 
+/* Some devices need to (re-)set their netdev_ops inside
+ * ->init() or similar.  If that happens, we have to setup
+ * the compat pointers again.
+ */
+void netdev_resync_ops(struct net_device *dev)
+{
+#ifdef CONFIG_COMPAT_NET_DEV_OPS
+	const struct net_device_ops *ops = dev->netdev_ops;
+
+	dev->init = ops->ndo_init;
+	dev->uninit = ops->ndo_uninit;
+	dev->open = ops->ndo_open;
+	dev->change_rx_flags = ops->ndo_change_rx_flags;
+	dev->set_rx_mode = ops->ndo_set_rx_mode;
+	dev->set_multicast_list = ops->ndo_set_multicast_list;
+	dev->set_mac_address = ops->ndo_set_mac_address;
+	dev->validate_addr = ops->ndo_validate_addr;
+	dev->do_ioctl = ops->ndo_do_ioctl;
+	dev->set_config = ops->ndo_set_config;
+	dev->change_mtu = ops->ndo_change_mtu;
+	dev->neigh_setup = ops->ndo_neigh_setup;
+	dev->tx_timeout = ops->ndo_tx_timeout;
+	dev->get_stats = ops->ndo_get_stats;
+	dev->vlan_rx_register = ops->ndo_vlan_rx_register;
+	dev->vlan_rx_add_vid = ops->ndo_vlan_rx_add_vid;
+	dev->vlan_rx_kill_vid = ops->ndo_vlan_rx_kill_vid;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	dev->poll_controller = ops->ndo_poll_controller;
+#endif
+#endif
+}
+EXPORT_SYMBOL(netdev_resync_ops);
+
 /**
  *	register_netdevice	- register a network device
  *	@dev: device to register
@@ -4326,27 +4359,7 @@ int register_netdevice(struct net_device *dev)
 	 * This is temporary until all network devices are converted.
 	 */
 	if (dev->netdev_ops) {
-		const struct net_device_ops *ops = dev->netdev_ops;
-
-		dev->init = ops->ndo_init;
-		dev->uninit = ops->ndo_uninit;
-		dev->open = ops->ndo_open;
-		dev->change_rx_flags = ops->ndo_change_rx_flags;
-		dev->set_rx_mode = ops->ndo_set_rx_mode;
-		dev->set_multicast_list = ops->ndo_set_multicast_list;
-		dev->set_mac_address = ops->ndo_set_mac_address;
-		dev->validate_addr = ops->ndo_validate_addr;
-		dev->do_ioctl = ops->ndo_do_ioctl;
-		dev->set_config = ops->ndo_set_config;
-		dev->change_mtu = ops->ndo_change_mtu;
-		dev->tx_timeout = ops->ndo_tx_timeout;
-		dev->get_stats = ops->ndo_get_stats;
-		dev->vlan_rx_register = ops->ndo_vlan_rx_register;
-		dev->vlan_rx_add_vid = ops->ndo_vlan_rx_add_vid;
-		dev->vlan_rx_kill_vid = ops->ndo_vlan_rx_kill_vid;
-#ifdef CONFIG_NET_POLL_CONTROLLER
-		dev->poll_controller = ops->ndo_poll_controller;
-#endif
+		netdev_resync_ops(dev);
 	} else {
 		char drivername[64];
 		pr_info("%s (%s): not using net_device_ops yet\n",
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 6ac29a46e23..484f58750eb 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -77,7 +77,9 @@ static ssize_t netdev_store(struct device *dev, struct device_attribute *attr,
 	if (endp == buf)
 		goto err;
 
-	rtnl_lock();
+	if (!rtnl_trylock())
+		return -ERESTARTSYS;
+
 	if (dev_isalive(net)) {
 		if ((ret = (*set)(net, new)) == 0)
 			ret = len;
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 55151faaf90..e3bebd36f05 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -32,24 +32,14 @@ static __net_init int setup_net(struct net *net)
 {
 	/* Must be called with net_mutex held */
 	struct pernet_operations *ops;
-	int error;
-	struct net_generic *ng;
+	int error = 0;
 
 	atomic_set(&net->count, 1);
+
 #ifdef NETNS_REFCNT_DEBUG
 	atomic_set(&net->use_count, 0);
 #endif
 
-	error = -ENOMEM;
-	ng = kzalloc(sizeof(struct net_generic) +
-			INITIAL_NET_GEN_PTRS * sizeof(void *), GFP_KERNEL);
-	if (ng == NULL)
-		goto out;
-
-	ng->len = INITIAL_NET_GEN_PTRS;
-	rcu_assign_pointer(net->gen, ng);
-
-	error = 0;
 	list_for_each_entry(ops, &pernet_list, list) {
 		if (ops->init) {
 			error = ops->init(net);
@@ -70,24 +60,50 @@ out_undo:
 	}
 
 	rcu_barrier();
-	kfree(ng);
 	goto out;
 }
 
+static struct net_generic *net_alloc_generic(void)
+{
+	struct net_generic *ng;
+	size_t generic_size = sizeof(struct net_generic) +
+		INITIAL_NET_GEN_PTRS * sizeof(void *);
+
+	ng = kzalloc(generic_size, GFP_KERNEL);
+	if (ng)
+		ng->len = INITIAL_NET_GEN_PTRS;
+
+	return ng;
+}
+
 #ifdef CONFIG_NET_NS
 static struct kmem_cache *net_cachep;
 static struct workqueue_struct *netns_wq;
 
 static struct net *net_alloc(void)
 {
-	return kmem_cache_zalloc(net_cachep, GFP_KERNEL);
+	struct net *net = NULL;
+	struct net_generic *ng;
+
+	ng = net_alloc_generic();
+	if (!ng)
+		goto out;
+
+	net = kmem_cache_zalloc(net_cachep, GFP_KERNEL);
+	if (!net)
+		goto out_free;
+
+	rcu_assign_pointer(net->gen, ng);
+out:
+	return net;
+
+out_free:
+	kfree(ng);
+	goto out;
 }
 
 static void net_free(struct net *net)
 {
-	if (!net)
-		return;
-
 #ifdef NETNS_REFCNT_DEBUG
 	if (unlikely(atomic_read(&net->use_count) != 0)) {
 		printk(KERN_EMERG "network namespace not free! Usage: %d\n",
@@ -112,27 +128,28 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
 	err = -ENOMEM;
 	new_net = net_alloc();
 	if (!new_net)
-		goto out;
+		goto out_err;
 
 	mutex_lock(&net_mutex);
 	err = setup_net(new_net);
-	if (err)
-		goto out_unlock;
-
-	rtnl_lock();
-	list_add_tail(&new_net->list, &net_namespace_list);
-	rtnl_unlock();
-
-
-out_unlock:
+	if (!err) {
+		rtnl_lock();
+		list_add_tail(&new_net->list, &net_namespace_list);
+		rtnl_unlock();
+	}
 	mutex_unlock(&net_mutex);
+
+	if (err)
+		goto out_free;
 out:
 	put_net(old_net);
-	if (err) {
-		net_free(new_net);
-		new_net = ERR_PTR(err);
-	}
 	return new_net;
+
+out_free:
+	net_free(new_net);
+out_err:
+	new_net = ERR_PTR(err);
+	goto out;
 }
 
 static void cleanup_net(struct work_struct *work)
@@ -140,9 +157,6 @@ static void cleanup_net(struct work_struct *work)
 	struct pernet_operations *ops;
 	struct net *net;
 
-	/* Be very certain incoming network packets will not find us */
-	rcu_barrier();
-
 	net = container_of(work, struct net, work);
 
 	mutex_lock(&net_mutex);
@@ -188,6 +202,7 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
 
 static int __init net_ns_init(void)
 {
+	struct net_generic *ng;
 	int err;
 
 	printk(KERN_INFO "net_namespace: %zd bytes\n", sizeof(struct net));
@@ -202,6 +217,12 @@ static int __init net_ns_init(void)
 		panic("Could not create netns workq");
 #endif
 
+	ng = net_alloc_generic();
+	if (!ng)
+		panic("Could not allocate generic netns");
+
+	rcu_assign_pointer(init_net.gen, ng);
+
 	mutex_lock(&net_mutex);
 	err = setup_net(&init_net);
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index da74b844f4e..c6a6b166f8d 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -143,14 +143,6 @@ void skb_under_panic(struct sk_buff *skb, int sz, void *here)
 	BUG();
 }
 
-void skb_truesize_bug(struct sk_buff *skb)
-{
-	WARN(net_ratelimit(), KERN_ERR "SKB BUG: Invalid truesize (%u) "
-	       "len=%u, sizeof(sk_buff)=%Zd\n",
-	       skb->truesize, skb->len, sizeof(struct sk_buff));
-}
-EXPORT_SYMBOL(skb_truesize_bug);
-
 /* 	Allocate a new skbuff. We do this ourselves so we can fill in a few
  *	'private' fields and also do memory statistics to find all the
  *	[BEEP] leaks.
diff --git a/net/core/sock.c b/net/core/sock.c
index f3a0d08cbb4..5f97caa158e 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -696,6 +696,8 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 	if (len < 0)
 		return -EINVAL;
 
+	memset(&v, 0, sizeof(v));
+
 	switch(optname) {
 	case SO_DEBUG:
 		v.val = sock_flag(sk, SOCK_DBG);
@@ -1135,7 +1137,6 @@ void sock_rfree(struct sk_buff *skb)
 {
 	struct sock *sk = skb->sk;
 
-	skb_truesize_check(skb);
 	atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
 	sk_mem_uncharge(skb->sk, skb->truesize);
 }
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 6bb2635b5de..7bc992976d2 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -3,11 +3,16 @@
  *
  * This is an implementation of the CIPSO 2.2 protocol as specified in
  * draft-ietf-cipso-ipsecurity-01.txt with additional tag types as found in
- * FIPS-188, copies of both documents can be found in the Documentation
- * directory.  While CIPSO never became a full IETF RFC standard many vendors
+ * FIPS-188.  While CIPSO never became a full IETF RFC standard many vendors
  * have chosen to adopt the protocol and over the years it has become a
  * de-facto standard for labeled networking.
  *
+ * The CIPSO draft specification can be found in the kernel's Documentation
+ * directory as well as the following URL:
+ *   http://netlabel.sourceforge.net/files/draft-ietf-cipso-ipsecurity-01.txt
+ * The FIPS-188 specification can be found at the following URL:
+ *   http://www.itl.nist.gov/fipspubs/fip188.htm
+ *
  * Author: Paul Moore <paul.moore@hp.com>
  *
  */
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 705b33b184a..fc562d29cc4 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -1205,7 +1205,7 @@ static struct pernet_operations __net_initdata icmp_sk_ops = {
 
 int __init icmp_init(void)
 {
-	return register_pernet_device(&icmp_sk_ops);
+	return register_pernet_subsys(&icmp_sk_ops);
 }
 
 EXPORT_SYMBOL(icmp_err_convert);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index a6961d75c7e..c28976a7e59 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1374,7 +1374,8 @@ static u8 tcp_sacktag_one(struct sk_buff *skb, struct sock *sk,
 
 static int tcp_shifted_skb(struct sock *sk, struct sk_buff *skb,
 			   struct tcp_sacktag_state *state,
-			   unsigned int pcount, int shifted, int mss)
+			   unsigned int pcount, int shifted, int mss,
+			   int dup_sack)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct sk_buff *prev = tcp_write_queue_prev(sk, skb);
@@ -1410,7 +1411,7 @@ static int tcp_shifted_skb(struct sock *sk, struct sk_buff *skb,
 	}
 
 	/* We discard results */
-	tcp_sacktag_one(skb, sk, state, 0, pcount);
+	tcp_sacktag_one(skb, sk, state, dup_sack, pcount);
 
 	/* Difference in this won't matter, both ACKed by the same cumul. ACK */
 	TCP_SKB_CB(prev)->sacked |= (TCP_SKB_CB(skb)->sacked & TCPCB_EVER_RETRANS);
@@ -1561,7 +1562,7 @@ static struct sk_buff *tcp_shift_skb_data(struct sock *sk, struct sk_buff *skb,
 
 	if (!skb_shift(prev, skb, len))
 		goto fallback;
-	if (!tcp_shifted_skb(sk, skb, state, pcount, len, mss))
+	if (!tcp_shifted_skb(sk, skb, state, pcount, len, mss, dup_sack))
 		goto out;
 
 	/* Hole filled allows collapsing with the next as well, this is very
@@ -1580,7 +1581,7 @@ static struct sk_buff *tcp_shift_skb_data(struct sock *sk, struct sk_buff *skb,
 	len = skb->len;
 	if (skb_shift(prev, skb, len)) {
 		pcount += tcp_skb_pcount(skb);
-		tcp_shifted_skb(sk, skb, state, tcp_skb_pcount(skb), len, mss);
+		tcp_shifted_skb(sk, skb, state, tcp_skb_pcount(skb), len, mss, 0);
 	}
 
 out:
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 19d7b429a26..cf74c416831 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2443,7 +2443,7 @@ static struct pernet_operations __net_initdata tcp_sk_ops = {
 void __init tcp_v4_init(void)
 {
 	inet_hashinfo_init(&tcp_hashinfo);
-	if (register_pernet_device(&tcp_sk_ops))
+	if (register_pernet_subsys(&tcp_sk_ops))
 		panic("Failed to create the TCP control socket.\n");
 }
 
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index dda42f0bd7a..da2c3b8794f 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2023,7 +2023,6 @@ void tcp_xmit_retransmit_queue(struct sock *sk)
 		last_lost = tp->snd_una;
 	}
 
-	/* First pass: retransmit lost packets. */
 	tcp_for_write_queue_from(skb, sk) {
 		__u8 sacked = TCP_SKB_CB(skb)->sacked;
 
diff --git a/net/ipv4/tcp_scalable.c b/net/ipv4/tcp_scalable.c
index 2747ec7bfb6..4660b088a8c 100644
--- a/net/ipv4/tcp_scalable.c
+++ b/net/ipv4/tcp_scalable.c
@@ -1,6 +1,6 @@
 /* Tom Kelly's Scalable TCP
  *
- * See htt://www-lce.eng.cam.ac.uk/~ctk21/scalable/
+ * See http://www.deneholme.net/tom/scalable/
  *
  * John Heffner <jheffner@sc.edu>
  */
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index f9afb452249..1220e2c7831 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -493,15 +493,17 @@ static void addrconf_forward_change(struct net *net, __s32 newf)
 	read_unlock(&dev_base_lock);
 }
 
-static void addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
+static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
 {
 	struct net *net;
 
 	net = (struct net *)table->extra2;
 	if (p == &net->ipv6.devconf_dflt->forwarding)
-		return;
+		return 0;
+
+	if (!rtnl_trylock())
+		return -ERESTARTSYS;
 
-	rtnl_lock();
 	if (p == &net->ipv6.devconf_all->forwarding) {
 		__s32 newf = net->ipv6.devconf_all->forwarding;
 		net->ipv6.devconf_dflt->forwarding = newf;
@@ -512,6 +514,7 @@ static void addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
 
 	if (*p)
 		rt6_purge_dflt_routers(net);
+	return 1;
 }
 #endif
 
@@ -2608,9 +2611,6 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 
 	ASSERT_RTNL();
 
-	if ((dev->flags & IFF_LOOPBACK) && how == 1)
-		how = 0;
-
 	rt6_ifdown(net, dev);
 	neigh_ifdown(&nd_tbl, dev);
 
@@ -3983,7 +3983,7 @@ int addrconf_sysctl_forward(ctl_table *ctl, int write, struct file * filp,
 	ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
 
 	if (write)
-		addrconf_fixup_forwarding(ctl, valp, val);
+		ret = addrconf_fixup_forwarding(ctl, valp, val);
 	return ret;
 }
 
@@ -4019,8 +4019,7 @@ static int addrconf_sysctl_forward_strategy(ctl_table *table,
 	}
 
 	*valp = new;
-	addrconf_fixup_forwarding(table, valp, val);
-	return 1;
+	return addrconf_fixup_forwarding(table, valp, val);
 }
 
 static struct addrconf_sysctl_table
@@ -4446,25 +4445,6 @@ int unregister_inet6addr_notifier(struct notifier_block *nb)
 
 EXPORT_SYMBOL(unregister_inet6addr_notifier);
 
-static void addrconf_net_exit(struct net *net)
-{
-	struct net_device *dev;
-
-	rtnl_lock();
-	/* clean dev list */
-	for_each_netdev(net, dev) {
-		if (__in6_dev_get(dev) == NULL)
-			continue;
-		addrconf_ifdown(dev, 1);
-	}
-	addrconf_ifdown(net->loopback_dev, 2);
-	rtnl_unlock();
-}
-
-static struct pernet_operations addrconf_net_ops = {
-	.exit = addrconf_net_exit,
-};
-
 /*
  *	Init / cleanup code
  */
@@ -4506,10 +4486,6 @@ int __init addrconf_init(void)
 	if (err)
 		goto errlo;
 
-	err = register_pernet_device(&addrconf_net_ops);
-	if (err)
-		return err;
-
 	register_netdevice_notifier(&ipv6_dev_notf);
 
 	addrconf_verify(0);
@@ -4539,15 +4515,22 @@ errlo:
 void addrconf_cleanup(void)
 {
 	struct inet6_ifaddr *ifa;
+	struct net_device *dev;
 	int i;
 
 	unregister_netdevice_notifier(&ipv6_dev_notf);
-	unregister_pernet_device(&addrconf_net_ops);
-
 	unregister_pernet_subsys(&addrconf_ops);
 
 	rtnl_lock();
 
+	/* clean dev list */
+	for_each_netdev(&init_net, dev) {
+		if (__in6_dev_get(dev) == NULL)
+			continue;
+		addrconf_ifdown(dev, 1);
+	}
+	addrconf_ifdown(init_net.loopback_dev, 2);
+
 	/*
 	 *	Check hash table.
 	 */
@@ -4568,6 +4551,4 @@ void addrconf_cleanup(void)
 
 	del_timer(&addr_chk_timer);
 	rtnl_unlock();
-
-	unregister_pernet_subsys(&addrconf_net_ops);
 }
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index c802bc1658a..9c8309ed35c 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -72,6 +72,10 @@ MODULE_LICENSE("GPL");
 static struct list_head inetsw6[SOCK_MAX];
 static DEFINE_SPINLOCK(inetsw6_lock);
 
+static int disable_ipv6 = 0;
+module_param_named(disable, disable_ipv6, int, 0);
+MODULE_PARM_DESC(disable, "Disable IPv6 such that it is non-functional");
+
 static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk)
 {
 	const int offset = sk->sk_prot->obj_size - sizeof(struct ipv6_pinfo);
@@ -991,10 +995,21 @@ static int __init inet6_init(void)
 {
 	struct sk_buff *dummy_skb;
 	struct list_head *r;
-	int err;
+	int err = 0;
 
 	BUILD_BUG_ON(sizeof(struct inet6_skb_parm) > sizeof(dummy_skb->cb));
 
+	/* Register the socket-side information for inet6_create.  */
+	for(r = &inetsw6[0]; r < &inetsw6[SOCK_MAX]; ++r)
+		INIT_LIST_HEAD(r);
+
+	if (disable_ipv6) {
+		printk(KERN_INFO
+		       "IPv6: Loaded, but administratively disabled, "
+		       "reboot required to enable\n");
+		goto out;
+	}
+
 	err = proto_register(&tcpv6_prot, 1);
 	if (err)
 		goto out;
@@ -1012,10 +1027,6 @@ static int __init inet6_init(void)
 		goto out_unregister_udplite_proto;
 
 
-	/* Register the socket-side information for inet6_create.  */
-	for(r = &inetsw6[0]; r < &inetsw6[SOCK_MAX]; ++r)
-		INIT_LIST_HEAD(r);
-
 	/* We MUST register RAW sockets before we create the ICMP6,
 	 * IGMP6, or NDISC control sockets.
 	 */
@@ -1181,6 +1192,9 @@ module_init(inet6_init);
 
 static void __exit inet6_exit(void)
 {
+	if (disable_ipv6)
+		return;
+
 	/* First of all disallow new sockets creation. */
 	sock_unregister(PF_INET6);
 	/* Disallow any further netlink messages */
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 8fe267feb81..1bcc3431859 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -258,11 +258,11 @@ unique:
 
 	if (twp != NULL) {
 		*twp = tw;
-		NET_INC_STATS_BH(twsk_net(tw), LINUX_MIB_TIMEWAITRECYCLED);
+		NET_INC_STATS_BH(net, LINUX_MIB_TIMEWAITRECYCLED);
 	} else if (tw != NULL) {
 		/* Silly. Should hash-dance instead... */
 		inet_twsk_deschedule(tw, death_row);
-		NET_INC_STATS_BH(twsk_net(tw), LINUX_MIB_TIMEWAITRECYCLED);
+		NET_INC_STATS_BH(net, LINUX_MIB_TIMEWAITRECYCLED);
 
 		inet_twsk_put(tw);
 	}
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index c323643ffcf..72dbb6d1a6b 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -201,8 +201,9 @@ icmpv6_error(struct net *net, struct sk_buff *skb, unsigned int dataoff,
 
 	if (net->ct.sysctl_checksum && hooknum == NF_INET_PRE_ROUTING &&
 	    nf_ip6_checksum(skb, hooknum, dataoff, IPPROTO_ICMPV6)) {
-		nf_log_packet(PF_INET6, 0, skb, NULL, NULL, NULL,
-			      "nf_ct_icmpv6: ICMPv6 checksum failed\n");
+		if (LOG_INVALID(net, IPPROTO_ICMPV6))
+			nf_log_packet(PF_INET6, 0, skb, NULL, NULL, NULL,
+				      "nf_ct_icmpv6: ICMPv6 checksum failed ");
 		return -NF_ACCEPT;
 	}
 
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 4278e545638..94de5033f0b 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1343,6 +1343,8 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
 						list) {
 				if (!netif_running(sdata->dev))
 					continue;
+				if (sdata->vif.type != NL80211_IFTYPE_AP)
+					continue;
 				if (compare_ether_addr(sdata->dev->dev_addr,
 						       hdr->addr2)) {
 					dev_hold(sdata->dev);
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index fa49dc7fe10..c712e9fc6bb 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -39,7 +39,7 @@
 #endif
 
 #define NFULNL_NLBUFSIZ_DEFAULT	NLMSG_GOODSIZE
-#define NFULNL_TIMEOUT_DEFAULT 	HZ	/* every second */
+#define NFULNL_TIMEOUT_DEFAULT 	100	/* every second */
 #define NFULNL_QTHRESH_DEFAULT 	100	/* 100 packets */
 #define NFULNL_COPY_RANGE_MAX	0xFFFF	/* max packet size is limited by 16-bit struct nfattr nfa_len field */
 
@@ -590,8 +590,10 @@ nfulnl_log_packet(u_int8_t pf,
 
 	qthreshold = inst->qthreshold;
 	/* per-rule qthreshold overrides per-instance */
-	if (qthreshold > li->u.ulog.qthreshold)
-		qthreshold = li->u.ulog.qthreshold;
+	if (li->u.ulog.qthreshold)
+		if (qthreshold > li->u.ulog.qthreshold)
+			qthreshold = li->u.ulog.qthreshold;
+
 
 	switch (inst->copy_mode) {
 	case NFULNL_COPY_META:
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index bfbf521f6ea..5baccfa5a0d 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -827,59 +827,143 @@ static const struct file_operations xt_table_ops = {
 	.release = seq_release_net,
 };
 
-static void *xt_match_seq_start(struct seq_file *seq, loff_t *pos)
+/*
+ * Traverse state for ip{,6}_{tables,matches} for helping crossing
+ * the multi-AF mutexes.
+ */
+struct nf_mttg_trav {
+	struct list_head *head, *curr;
+	uint8_t class, nfproto;
+};
+
+enum {
+	MTTG_TRAV_INIT,
+	MTTG_TRAV_NFP_UNSPEC,
+	MTTG_TRAV_NFP_SPEC,
+	MTTG_TRAV_DONE,
+};
+
+static void *xt_mttg_seq_next(struct seq_file *seq, void *v, loff_t *ppos,
+    bool is_target)
 {
-	struct proc_dir_entry *pde = (struct proc_dir_entry *)seq->private;
-	u_int16_t af = (unsigned long)pde->data;
+	static const uint8_t next_class[] = {
+		[MTTG_TRAV_NFP_UNSPEC] = MTTG_TRAV_NFP_SPEC,
+		[MTTG_TRAV_NFP_SPEC]   = MTTG_TRAV_DONE,
+	};
+	struct nf_mttg_trav *trav = seq->private;
+
+	switch (trav->class) {
+	case MTTG_TRAV_INIT:
+		trav->class = MTTG_TRAV_NFP_UNSPEC;
+		mutex_lock(&xt[NFPROTO_UNSPEC].mutex);
+		trav->head = trav->curr = is_target ?
+			&xt[NFPROTO_UNSPEC].target : &xt[NFPROTO_UNSPEC].match;
+ 		break;
+	case MTTG_TRAV_NFP_UNSPEC:
+		trav->curr = trav->curr->next;
+		if (trav->curr != trav->head)
+			break;
+		mutex_unlock(&xt[NFPROTO_UNSPEC].mutex);
+		mutex_lock(&xt[trav->nfproto].mutex);
+		trav->head = trav->curr = is_target ?
+			&xt[trav->nfproto].target : &xt[trav->nfproto].match;
+		trav->class = next_class[trav->class];
+		break;
+	case MTTG_TRAV_NFP_SPEC:
+		trav->curr = trav->curr->next;
+		if (trav->curr != trav->head)
+			break;
+		/* fallthru, _stop will unlock */
+	default:
+		return NULL;
+	}
 
-	mutex_lock(&xt[af].mutex);
-	return seq_list_start(&xt[af].match, *pos);
+	if (ppos != NULL)
+		++*ppos;
+	return trav;
 }
 
-static void *xt_match_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+static void *xt_mttg_seq_start(struct seq_file *seq, loff_t *pos,
+    bool is_target)
 {
-	struct proc_dir_entry *pde = (struct proc_dir_entry *)seq->private;
-	u_int16_t af = (unsigned long)pde->data;
+	struct nf_mttg_trav *trav = seq->private;
+	unsigned int j;
 
-	return seq_list_next(v, &xt[af].match, pos);
+	trav->class = MTTG_TRAV_INIT;
+	for (j = 0; j < *pos; ++j)
+		if (xt_mttg_seq_next(seq, NULL, NULL, is_target) == NULL)
+			return NULL;
+	return trav;
 }
 
-static void xt_match_seq_stop(struct seq_file *seq, void *v)
+static void xt_mttg_seq_stop(struct seq_file *seq, void *v)
 {
-	struct proc_dir_entry *pde = seq->private;
-	u_int16_t af = (unsigned long)pde->data;
+	struct nf_mttg_trav *trav = seq->private;
+
+	switch (trav->class) {
+	case MTTG_TRAV_NFP_UNSPEC:
+		mutex_unlock(&xt[NFPROTO_UNSPEC].mutex);
+		break;
+	case MTTG_TRAV_NFP_SPEC:
+		mutex_unlock(&xt[trav->nfproto].mutex);
+		break;
+	}
+}
 
-	mutex_unlock(&xt[af].mutex);
+static void *xt_match_seq_start(struct seq_file *seq, loff_t *pos)
+{
+	return xt_mttg_seq_start(seq, pos, false);
 }
 
-static int xt_match_seq_show(struct seq_file *seq, void *v)
+static void *xt_match_seq_next(struct seq_file *seq, void *v, loff_t *ppos)
 {
-	struct xt_match *match = list_entry(v, struct xt_match, list);
+	return xt_mttg_seq_next(seq, v, ppos, false);
+}
 
-	if (strlen(match->name))
-		return seq_printf(seq, "%s\n", match->name);
-	else
-		return 0;
+static int xt_match_seq_show(struct seq_file *seq, void *v)
+{
+	const struct nf_mttg_trav *trav = seq->private;
+	const struct xt_match *match;
+
+	switch (trav->class) {
+	case MTTG_TRAV_NFP_UNSPEC:
+	case MTTG_TRAV_NFP_SPEC:
+		if (trav->curr == trav->head)
+			return 0;
+		match = list_entry(trav->curr, struct xt_match, list);
+		return (*match->name == '\0') ? 0 :
+		       seq_printf(seq, "%s\n", match->name);
+	}
+	return 0;
 }
 
 static const struct seq_operations xt_match_seq_ops = {
 	.start	= xt_match_seq_start,
 	.next	= xt_match_seq_next,
-	.stop	= xt_match_seq_stop,
+	.stop	= xt_mttg_seq_stop,
 	.show	= xt_match_seq_show,
 };
 
 static int xt_match_open(struct inode *inode, struct file *file)
 {
+	struct seq_file *seq;
+	struct nf_mttg_trav *trav;
 	int ret;
 
-	ret = seq_open(file, &xt_match_seq_ops);
-	if (!ret) {
-		struct seq_file *seq = file->private_data;
+	trav = kmalloc(sizeof(*trav), GFP_KERNEL);
+	if (trav == NULL)
+		return -ENOMEM;
 
-		seq->private = PDE(inode);
+	ret = seq_open(file, &xt_match_seq_ops);
+	if (ret < 0) {
+		kfree(trav);
+		return ret;
 	}
-	return ret;
+
+	seq = file->private_data;
+	seq->private = trav;
+	trav->nfproto = (unsigned long)PDE(inode)->data;
+	return 0;
 }
 
 static const struct file_operations xt_match_ops = {
@@ -887,62 +971,63 @@ static const struct file_operations xt_match_ops = {
 	.open	 = xt_match_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,
-	.release = seq_release,
+	.release = seq_release_private,
 };
 
 static void *xt_target_seq_start(struct seq_file *seq, loff_t *pos)
 {
-	struct proc_dir_entry *pde = (struct proc_dir_entry *)seq->private;
-	u_int16_t af = (unsigned long)pde->data;
-
-	mutex_lock(&xt[af].mutex);
-	return seq_list_start(&xt[af].target, *pos);
+	return xt_mttg_seq_start(seq, pos, true);
 }
 
-static void *xt_target_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+static void *xt_target_seq_next(struct seq_file *seq, void *v, loff_t *ppos)
 {
-	struct proc_dir_entry *pde = (struct proc_dir_entry *)seq->private;
-	u_int16_t af = (unsigned long)pde->data;
-
-	return seq_list_next(v, &xt[af].target, pos);
-}
-
-static void xt_target_seq_stop(struct seq_file *seq, void *v)
-{
-	struct proc_dir_entry *pde = seq->private;
-	u_int16_t af = (unsigned long)pde->data;
-
-	mutex_unlock(&xt[af].mutex);
+	return xt_mttg_seq_next(seq, v, ppos, true);
 }
 
 static int xt_target_seq_show(struct seq_file *seq, void *v)
 {
-	struct xt_target *target = list_entry(v, struct xt_target, list);
-
-	if (strlen(target->name))
-		return seq_printf(seq, "%s\n", target->name);
-	else
-		return 0;
+	const struct nf_mttg_trav *trav = seq->private;
+	const struct xt_target *target;
+
+	switch (trav->class) {
+	case MTTG_TRAV_NFP_UNSPEC:
+	case MTTG_TRAV_NFP_SPEC:
+		if (trav->curr == trav->head)
+			return 0;
+		target = list_entry(trav->curr, struct xt_target, list);
+		return (*target->name == '\0') ? 0 :
+		       seq_printf(seq, "%s\n", target->name);
+	}
+	return 0;
 }
 
 static const struct seq_operations xt_target_seq_ops = {
 	.start	= xt_target_seq_start,
 	.next	= xt_target_seq_next,
-	.stop	= xt_target_seq_stop,
+	.stop	= xt_mttg_seq_stop,
 	.show	= xt_target_seq_show,
 };
 
 static int xt_target_open(struct inode *inode, struct file *file)
 {
+	struct seq_file *seq;
+	struct nf_mttg_trav *trav;
 	int ret;
 
-	ret = seq_open(file, &xt_target_seq_ops);
-	if (!ret) {
-		struct seq_file *seq = file->private_data;
+	trav = kmalloc(sizeof(*trav), GFP_KERNEL);
+	if (trav == NULL)
+		return -ENOMEM;
 
-		seq->private = PDE(inode);
+	ret = seq_open(file, &xt_target_seq_ops);
+	if (ret < 0) {
+		kfree(trav);
+		return ret;
 	}
-	return ret;
+
+	seq = file->private_data;
+	seq->private = trav;
+	trav->nfproto = (unsigned long)PDE(inode)->data;
+	return 0;
 }
 
 static const struct file_operations xt_target_ops = {
@@ -950,7 +1035,7 @@ static const struct file_operations xt_target_ops = {
 	.open	 = xt_target_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,
-	.release = seq_release,
+	.release = seq_release_private,
 };
 
 #define FORMAT_TABLES	"_tables_names"
diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c
index fe80b614a40..791e030ea90 100644
--- a/net/netfilter/xt_recent.c
+++ b/net/netfilter/xt_recent.c
@@ -542,7 +542,7 @@ recent_mt_proc_write(struct file *file, const char __user *input,
 	struct recent_entry *e;
 	char buf[sizeof("+b335:1d35:1e55:dead:c0de:1715:5afe:c0de")];
 	const char *c = buf;
-	union nf_inet_addr addr;
+	union nf_inet_addr addr = {};
 	u_int16_t family;
 	bool add, succ;
 
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 9eb895c7a2a..3ae3cb81656 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1084,6 +1084,13 @@ out:
 	return 0;
 }
 
+/**
+ * netlink_set_err - report error to broadcast listeners
+ * @ssk: the kernel netlink socket, as returned by netlink_kernel_create()
+ * @pid: the PID of a process that we want to skip (if any)
+ * @groups: the broadcast group that will notice the error
+ * @code: error code, must be negative (as usual in kernelspace)
+ */
 void netlink_set_err(struct sock *ssk, u32 pid, u32 group, int code)
 {
 	struct netlink_set_err_data info;
@@ -1093,7 +1100,8 @@ void netlink_set_err(struct sock *ssk, u32 pid, u32 group, int code)
 	info.exclude_sk = ssk;
 	info.pid = pid;
 	info.group = group;
-	info.code = code;
+	/* sk->sk_err wants a positive error value */
+	info.code = -code;
 
 	read_lock(&nl_table_lock);
 
diff --git a/net/phonet/pep-gprs.c b/net/phonet/pep-gprs.c
index 6a91a32a80c..4aa888584d2 100644
--- a/net/phonet/pep-gprs.c
+++ b/net/phonet/pep-gprs.c
@@ -207,7 +207,6 @@ static int gprs_xmit(struct sk_buff *skb, struct net_device *dev)
 				dev->name, err);
 		dev->stats.tx_aborted_errors++;
 		dev->stats.tx_errors++;
-		dev_kfree_skb(skb);
 	} else {
 		dev->stats.tx_packets++;
 		dev->stats.tx_bytes += len;
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index bb3e67849b3..8ad2b533388 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -553,7 +553,7 @@ static int pep_do_rcv(struct sock *sk, struct sk_buff *skb)
 {
 	struct pep_sock *pn = pep_sk(sk);
 	struct sock *sknode;
-	struct pnpipehdr *hdr = pnp_hdr(skb);
+	struct pnpipehdr *hdr;
 	struct sockaddr_pn dst;
 	int err = NET_RX_SUCCESS;
 	u8 pipe_handle;
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index 5c72a116b1a..f8f047b6124 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -183,13 +183,6 @@ override:
 		if (R_tab == NULL)
 			goto failure;
 
-		if (!est && (ret == ACT_P_CREATED ||
-			     !gen_estimator_active(&police->tcf_bstats,
-						   &police->tcf_rate_est))) {
-			err = -EINVAL;
-			goto failure;
-		}
-
 		if (parm->peakrate.rate) {
 			P_tab = qdisc_get_rtab(&parm->peakrate,
 					       tb[TCA_POLICE_PEAKRATE]);
@@ -205,6 +198,12 @@ override:
 					    &police->tcf_lock, est);
 		if (err)
 			goto failure_unlock;
+	} else if (tb[TCA_POLICE_AVRATE] &&
+		   (ret == ACT_P_CREATED ||
+		    !gen_estimator_active(&police->tcf_bstats,
+					  &police->tcf_rate_est))) {
+		err = -EINVAL;
+		goto failure_unlock;
 	}
 
 	/* No failure allowed after this point */
diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c
index f6b4fa97df7..e36e94ab4e1 100644
--- a/net/sched/sch_drr.c
+++ b/net/sched/sch_drr.c
@@ -66,11 +66,15 @@ static int drr_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 {
 	struct drr_sched *q = qdisc_priv(sch);
 	struct drr_class *cl = (struct drr_class *)*arg;
+	struct nlattr *opt = tca[TCA_OPTIONS];
 	struct nlattr *tb[TCA_DRR_MAX + 1];
 	u32 quantum;
 	int err;
 
-	err = nla_parse_nested(tb, TCA_DRR_MAX, tca[TCA_OPTIONS], drr_policy);
+	if (!opt)
+		return -EINVAL;
+
+	err = nla_parse_nested(tb, TCA_DRR_MAX, opt, drr_policy);
 	if (err < 0)
 		return err;
 
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index b78e3be6901..c4986d0f741 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -717,15 +717,20 @@ static int sctp_inetaddr_event(struct notifier_block *this, unsigned long ev,
 static int sctp_ctl_sock_init(void)
 {
 	int err;
-	sa_family_t family;
+	sa_family_t family = PF_INET;
 
 	if (sctp_get_pf_specific(PF_INET6))
 		family = PF_INET6;
-	else
-		family = PF_INET;
 
 	err = inet_ctl_sock_create(&sctp_ctl_sock, family,
 				   SOCK_SEQPACKET, IPPROTO_SCTP, &init_net);
+
+	/* If IPv6 socket could not be created, try the IPv4 socket */
+	if (err < 0 && family == PF_INET6)
+		err = inet_ctl_sock_create(&sctp_ctl_sock, AF_INET,
+					   SOCK_SEQPACKET, IPPROTO_SCTP,
+					   &init_net);
+
 	if (err < 0) {
 		printk(KERN_ERR
 		       "SCTP: Failed to create the SCTP control socket.\n");
@@ -1322,9 +1327,8 @@ SCTP_STATIC __init int sctp_init(void)
 out:
 	return status;
 err_v6_add_protocol:
-	sctp_v6_del_protocol();
-err_add_protocol:
 	sctp_v4_del_protocol();
+err_add_protocol:
 	inet_ctl_sock_destroy(sctp_ctl_sock);
 err_ctl_sock_init:
 	sctp_v6_protosw_exit();
@@ -1335,7 +1339,6 @@ err_protosw_init:
 	sctp_v4_pf_exit();
 	sctp_v6_pf_exit();
 	sctp_sysctl_unregister();
-	list_del(&sctp_af_inet.list);
 	free_pages((unsigned long)sctp_port_hashtable,
 		   get_order(sctp_port_hashsize *
 			     sizeof(struct sctp_bind_hashbucket)));
@@ -1383,7 +1386,6 @@ SCTP_STATIC __exit void sctp_exit(void)
 	sctp_v4_pf_exit();
 
 	sctp_sysctl_unregister();
-	list_del(&sctp_af_inet.list);
 
 	free_pages((unsigned long)sctp_assoc_hashtable,
 		   get_order(sctp_assoc_hashsize *
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index e1d6076b4f5..b5495aecab6 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -787,36 +787,48 @@ static void sctp_cmd_process_operr(sctp_cmd_seq_t *cmds,
 				   struct sctp_association *asoc,
 				   struct sctp_chunk *chunk)
 {
-	struct sctp_operr_chunk *operr_chunk;
 	struct sctp_errhdr *err_hdr;
+	struct sctp_ulpevent *ev;
 
-	operr_chunk = (struct sctp_operr_chunk *)chunk->chunk_hdr;
-	err_hdr = &operr_chunk->err_hdr;
+	while (chunk->chunk_end > chunk->skb->data) {
+		err_hdr = (struct sctp_errhdr *)(chunk->skb->data);
 
-	switch (err_hdr->cause) {
-	case SCTP_ERROR_UNKNOWN_CHUNK:
-	{
-		struct sctp_chunkhdr *unk_chunk_hdr;
+		ev = sctp_ulpevent_make_remote_error(asoc, chunk, 0,
+						     GFP_ATOMIC);
+		if (!ev)
+			return;
 
-		unk_chunk_hdr = (struct sctp_chunkhdr *)err_hdr->variable;
-		switch (unk_chunk_hdr->type) {
-		/* ADDIP 4.1 A9) If the peer responds to an ASCONF with an
-		 * ERROR chunk reporting that it did not recognized the ASCONF
-		 * chunk type, the sender of the ASCONF MUST NOT send any
-		 * further ASCONF chunks and MUST stop its T-4 timer.
-		 */
-		case SCTP_CID_ASCONF:
-			asoc->peer.asconf_capable = 0;
-			sctp_add_cmd_sf(cmds, SCTP_CMD_TIMER_STOP,
+		sctp_ulpq_tail_event(&asoc->ulpq, ev);
+
+		switch (err_hdr->cause) {
+		case SCTP_ERROR_UNKNOWN_CHUNK:
+		{
+			sctp_chunkhdr_t *unk_chunk_hdr;
+
+			unk_chunk_hdr = (sctp_chunkhdr_t *)err_hdr->variable;
+			switch (unk_chunk_hdr->type) {
+			/* ADDIP 4.1 A9) If the peer responds to an ASCONF with
+			 * an ERROR chunk reporting that it did not recognized
+			 * the ASCONF chunk type, the sender of the ASCONF MUST
+			 * NOT send any further ASCONF chunks and MUST stop its
+			 * T-4 timer.
+			 */
+			case SCTP_CID_ASCONF:
+				if (asoc->peer.asconf_capable == 0)
+					break;
+
+				asoc->peer.asconf_capable = 0;
+				sctp_add_cmd_sf(cmds, SCTP_CMD_TIMER_STOP,
 					SCTP_TO(SCTP_EVENT_TIMEOUT_T4_RTO));
+				break;
+			default:
+				break;
+			}
 			break;
+		}
 		default:
 			break;
 		}
-		break;
-	}
-	default:
-		break;
 	}
 }
 
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 3a0cd075914..f88dfded0e3 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -3163,7 +3163,6 @@ sctp_disposition_t sctp_sf_operr_notify(const struct sctp_endpoint *ep,
 					sctp_cmd_seq_t *commands)
 {
 	struct sctp_chunk *chunk = arg;
-	struct sctp_ulpevent *ev;
 
 	if (!sctp_vtag_verify(chunk, asoc))
 		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
@@ -3173,21 +3172,10 @@ sctp_disposition_t sctp_sf_operr_notify(const struct sctp_endpoint *ep,
 		return sctp_sf_violation_chunklen(ep, asoc, type, arg,
 						  commands);
 
-	while (chunk->chunk_end > chunk->skb->data) {
-		ev = sctp_ulpevent_make_remote_error(asoc, chunk, 0,
-						     GFP_ATOMIC);
-		if (!ev)
-			goto nomem;
+	sctp_add_cmd_sf(commands, SCTP_CMD_PROCESS_OPERR,
+			SCTP_CHUNK(chunk));
 
-		sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP,
-				SCTP_ULPEVENT(ev));
-		sctp_add_cmd_sf(commands, SCTP_CMD_PROCESS_OPERR,
-				SCTP_CHUNK(chunk));
-	}
 	return SCTP_DISPOSITION_CONSUME;
-
-nomem:
-	return SCTP_DISPOSITION_NOMEM;
 }
 
 /*
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 385f427beda..ff50a054686 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -293,11 +293,6 @@ static void rpc_make_runnable(struct rpc_task *task)
 	rpc_clear_queued(task);
 	if (rpc_test_and_set_running(task))
 		return;
-	/* We might have raced */
-	if (RPC_IS_QUEUED(task)) {
-		rpc_clear_running(task);
-		return;
-	}
 	if (RPC_IS_ASYNC(task)) {
 		int status;
 
@@ -607,7 +602,9 @@ void rpc_release_calldata(const struct rpc_call_ops *ops, void *calldata)
  */
 static void __rpc_execute(struct rpc_task *task)
 {
-	int		status = 0;
+	struct rpc_wait_queue *queue;
+	int task_is_async = RPC_IS_ASYNC(task);
+	int status = 0;
 
 	dprintk("RPC: %5u __rpc_execute flags=0x%x\n",
 			task->tk_pid, task->tk_flags);
@@ -647,15 +644,25 @@ static void __rpc_execute(struct rpc_task *task)
 		 */
 		if (!RPC_IS_QUEUED(task))
 			continue;
-		rpc_clear_running(task);
-		if (RPC_IS_ASYNC(task)) {
-			/* Careful! we may have raced... */
-			if (RPC_IS_QUEUED(task))
-				return;
-			if (rpc_test_and_set_running(task))
-				return;
+		/*
+		 * The queue->lock protects against races with
+		 * rpc_make_runnable().
+		 *
+		 * Note that once we clear RPC_TASK_RUNNING on an asynchronous
+		 * rpc_task, rpc_make_runnable() can assign it to a
+		 * different workqueue. We therefore cannot assume that the
+		 * rpc_task pointer may still be dereferenced.
+		 */
+		queue = task->tk_waitqueue;
+		spin_lock_bh(&queue->lock);
+		if (!RPC_IS_QUEUED(task)) {
+			spin_unlock_bh(&queue->lock);
 			continue;
 		}
+		rpc_clear_running(task);
+		spin_unlock_bh(&queue->lock);
+		if (task_is_async)
+			return;
 
 		/* sync task: sleep here */
 		dprintk("RPC: %5u sync task going to sleep\n", task->tk_pid);
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 29e401bb612..62098d101a1 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -663,7 +663,7 @@ void xprt_connect(struct rpc_task *task)
 			xprt, (xprt_connected(xprt) ? "is" : "is not"));
 
 	if (!xprt_bound(xprt)) {
-		task->tk_status = -EIO;
+		task->tk_status = -EAGAIN;
 		return;
 	}
 	if (!xprt_lock_write(xprt, task))
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 5cbb404c4cd..29c71e645b2 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -467,7 +467,7 @@ static int xs_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen,
 	int err, sent = 0;
 
 	if (unlikely(!sock))
-		return -ENOTCONN;
+		return -ENOTSOCK;
 
 	clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags);
 	if (base != 0) {
@@ -577,6 +577,8 @@ static int xs_udp_send_request(struct rpc_task *task)
 				req->rq_svec->iov_base,
 				req->rq_svec->iov_len);
 
+	if (!xprt_bound(xprt))
+		return -ENOTCONN;
 	status = xs_sendpages(transport->sock,
 			      xs_addr(xprt),
 			      xprt->addrlen, xdr,
@@ -594,6 +596,10 @@ static int xs_udp_send_request(struct rpc_task *task)
 	}
 
 	switch (status) {
+	case -ENOTSOCK:
+		status = -ENOTCONN;
+		/* Should we call xs_close() here? */
+		break;
 	case -EAGAIN:
 		xs_nospace(task);
 		break;
@@ -693,6 +699,10 @@ static int xs_tcp_send_request(struct rpc_task *task)
 	}
 
 	switch (status) {
+	case -ENOTSOCK:
+		status = -ENOTCONN;
+		/* Should we call xs_close() here? */
+		break;
 	case -EAGAIN:
 		xs_nospace(task);
 		break;
@@ -1523,7 +1533,7 @@ static void xs_udp_connect_worker4(struct work_struct *work)
 	struct socket *sock = transport->sock;
 	int err, status = -EIO;
 
-	if (xprt->shutdown || !xprt_bound(xprt))
+	if (xprt->shutdown)
 		goto out;
 
 	/* Start by resetting any existing state */
@@ -1564,7 +1574,7 @@ static void xs_udp_connect_worker6(struct work_struct *work)
 	struct socket *sock = transport->sock;
 	int err, status = -EIO;
 
-	if (xprt->shutdown || !xprt_bound(xprt))
+	if (xprt->shutdown)
 		goto out;
 
 	/* Start by resetting any existing state */
@@ -1648,6 +1658,9 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
 		write_unlock_bh(&sk->sk_callback_lock);
 	}
 
+	if (!xprt_bound(xprt))
+		return -ENOTCONN;
+
 	/* Tell the socket layer to start connecting... */
 	xprt->stat.connect_count++;
 	xprt->stat.connect_start = jiffies;
@@ -1668,7 +1681,7 @@ static void xs_tcp_connect_worker4(struct work_struct *work)
 	struct socket *sock = transport->sock;
 	int err, status = -EIO;
 
-	if (xprt->shutdown || !xprt_bound(xprt))
+	if (xprt->shutdown)
 		goto out;
 
 	if (!sock) {
@@ -1728,7 +1741,7 @@ static void xs_tcp_connect_worker6(struct work_struct *work)
 	struct socket *sock = transport->sock;
 	int err, status = -EIO;
 
-	if (xprt->shutdown || !xprt_bound(xprt))
+	if (xprt->shutdown)
 		goto out;
 
 	if (!sock) {
diff --git a/net/wimax/id-table.c b/net/wimax/id-table.c
index 5e685f7eda9..72273abfcb1 100644
--- a/net/wimax/id-table.c
+++ b/net/wimax/id-table.c
@@ -94,12 +94,13 @@ struct wimax_dev *wimax_dev_get_by_genl_info(
 	list_for_each_entry(wimax_dev, &wimax_id_table, id_table_node) {
 		if (wimax_dev->net_dev->ifindex == ifindex) {
 			dev_hold(wimax_dev->net_dev);
-			break;
+			goto found;
 		}
 	}
-	if (wimax_dev == NULL)
-		d_printf(1, NULL, "wimax: no devices found with ifindex %d\n",
-			 ifindex);
+	wimax_dev = NULL;
+	d_printf(1, NULL, "wimax: no devices found with ifindex %d\n",
+		 ifindex);
+found:
 	spin_unlock(&wimax_id_table_lock);
 	d_fnend(3, NULL, "(info %p ifindex %d) = %p\n",
 		info, ifindex, wimax_dev);
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 85c9034c59b..bd0a16c3de5 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -380,7 +380,8 @@ static bool is_valid_reg_rule(const struct ieee80211_reg_rule *rule)
 
 	freq_diff = freq_range->end_freq_khz - freq_range->start_freq_khz;
 
-	if (freq_diff <= 0 || freq_range->max_bandwidth_khz > freq_diff)
+	if (freq_range->end_freq_khz <= freq_range->start_freq_khz ||
+			freq_range->max_bandwidth_khz > freq_diff)
 		return false;
 
 	return true;
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index e25ff62ab2a..62a5425cc6a 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -748,12 +748,51 @@ static void xfrm_hash_grow_check(struct net *net, int have_hash_collision)
 		schedule_work(&net->xfrm.state_hash_work);
 }
 
+static void xfrm_state_look_at(struct xfrm_policy *pol, struct xfrm_state *x,
+			       struct flowi *fl, unsigned short family,
+			       xfrm_address_t *daddr, xfrm_address_t *saddr,
+			       struct xfrm_state **best, int *acq_in_progress,
+			       int *error)
+{
+	/* Resolution logic:
+	 * 1. There is a valid state with matching selector. Done.
+	 * 2. Valid state with inappropriate selector. Skip.
+	 *
+	 * Entering area of "sysdeps".
+	 *
+	 * 3. If state is not valid, selector is temporary, it selects
+	 *    only session which triggered previous resolution. Key
+	 *    manager will do something to install a state with proper
+	 *    selector.
+	 */
+	if (x->km.state == XFRM_STATE_VALID) {
+		if ((x->sel.family &&
+		     !xfrm_selector_match(&x->sel, fl, x->sel.family)) ||
+		    !security_xfrm_state_pol_flow_match(x, pol, fl))
+			return;
+
+		if (!*best ||
+		    (*best)->km.dying > x->km.dying ||
+		    ((*best)->km.dying == x->km.dying &&
+		     (*best)->curlft.add_time < x->curlft.add_time))
+			*best = x;
+	} else if (x->km.state == XFRM_STATE_ACQ) {
+		*acq_in_progress = 1;
+	} else if (x->km.state == XFRM_STATE_ERROR ||
+		   x->km.state == XFRM_STATE_EXPIRED) {
+		if (xfrm_selector_match(&x->sel, fl, x->sel.family) &&
+		    security_xfrm_state_pol_flow_match(x, pol, fl))
+			*error = -ESRCH;
+	}
+}
+
 struct xfrm_state *
 xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
 		struct flowi *fl, struct xfrm_tmpl *tmpl,
 		struct xfrm_policy *pol, int *err,
 		unsigned short family)
 {
+	static xfrm_address_t saddr_wildcard = { };
 	struct net *net = xp_net(pol);
 	unsigned int h;
 	struct hlist_node *entry;
@@ -773,40 +812,27 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
 		    xfrm_state_addr_check(x, daddr, saddr, family) &&
 		    tmpl->mode == x->props.mode &&
 		    tmpl->id.proto == x->id.proto &&
-		    (tmpl->id.spi == x->id.spi || !tmpl->id.spi)) {
-			/* Resolution logic:
-			   1. There is a valid state with matching selector.
-			      Done.
-			   2. Valid state with inappropriate selector. Skip.
-
-			   Entering area of "sysdeps".
-
-			   3. If state is not valid, selector is temporary,
-			      it selects only session which triggered
-			      previous resolution. Key manager will do
-			      something to install a state with proper
-			      selector.
-			 */
-			if (x->km.state == XFRM_STATE_VALID) {
-				if ((x->sel.family && !xfrm_selector_match(&x->sel, fl, x->sel.family)) ||
-				    !security_xfrm_state_pol_flow_match(x, pol, fl))
-					continue;
-				if (!best ||
-				    best->km.dying > x->km.dying ||
-				    (best->km.dying == x->km.dying &&
-				     best->curlft.add_time < x->curlft.add_time))
-					best = x;
-			} else if (x->km.state == XFRM_STATE_ACQ) {
-				acquire_in_progress = 1;
-			} else if (x->km.state == XFRM_STATE_ERROR ||
-				   x->km.state == XFRM_STATE_EXPIRED) {
-				if (xfrm_selector_match(&x->sel, fl, x->sel.family) &&
-				    security_xfrm_state_pol_flow_match(x, pol, fl))
-					error = -ESRCH;
-			}
-		}
+		    (tmpl->id.spi == x->id.spi || !tmpl->id.spi))
+			xfrm_state_look_at(pol, x, fl, family, daddr, saddr,
+					   &best, &acquire_in_progress, &error);
+	}
+	if (best)
+		goto found;
+
+	h = xfrm_dst_hash(net, daddr, &saddr_wildcard, tmpl->reqid, family);
+	hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h, bydst) {
+		if (x->props.family == family &&
+		    x->props.reqid == tmpl->reqid &&
+		    !(x->props.flags & XFRM_STATE_WILDRECV) &&
+		    xfrm_state_addr_check(x, daddr, saddr, family) &&
+		    tmpl->mode == x->props.mode &&
+		    tmpl->id.proto == x->id.proto &&
+		    (tmpl->id.spi == x->id.spi || !tmpl->id.spi))
+			xfrm_state_look_at(pol, x, fl, family, daddr, saddr,
+					   &best, &acquire_in_progress, &error);
 	}
 
+found:
 	x = best;
 	if (!x && !error && !acquire_in_progress) {
 		if (tmpl->id.spi &&