23 files changed, 124 insertions, 99 deletions

diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 229d820bdf0b..045d56eaeca2 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -426,6 +426,16 @@ netdev_features_t br_features_recompute(struct net_bridge *br,
 int br_handle_frame_finish(struct sk_buff *skb);
 rx_handler_result_t br_handle_frame(struct sk_buff **pskb);
 
+static inline bool br_rx_handler_check_rcu(const struct net_device *dev)
+{
+	return rcu_dereference(dev->rx_handler) == br_handle_frame;
+}
+
+static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev)
+{
+	return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL;
+}
+
 /* br_ioctl.c */
 int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd,
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index 8660ea3be705..bdb459d21ad8 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -153,7 +153,7 @@ void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
 	if (buf[0] != 0 || buf[1] != 0 || buf[2] != 0)
 		goto err;
 
-	p = br_port_get_rcu(dev);
+	p = br_port_get_check_rcu(dev);
 	if (!p)
 		goto err;
 
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 95897183226e..e70301eb7a4a 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -64,7 +64,6 @@ static struct genl_family net_drop_monitor_family = {
 	.hdrsize        = 0,
 	.name           = "NET_DM",
 	.version        = 2,
-	.maxattr        = NET_DM_CMD_MAX,
 };
 
 static DEFINE_PER_CPU(struct per_cpu_dm_data, dm_cpu_data);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 2718fed53d8c..06e72d3cdf60 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3584,6 +3584,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet)
 	skb->tstamp.tv64 = 0;
 	skb->pkt_type = PACKET_HOST;
 	skb->skb_iif = 0;
+	skb->local_df = 0;
 	skb_dst_drop(skb);
 	skb->mark = 0;
 	secpath_reset(skb);
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 523be38e37de..f2e15738534d 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -104,7 +104,10 @@ errout:
 static bool fib4_rule_suppress(struct fib_rule *rule, struct fib_lookup_arg *arg)
 {
 	struct fib_result *result = (struct fib_result *) arg->result;
-	struct net_device *dev = result->fi->fib_dev;
+	struct net_device *dev = NULL;
+
+	if (result->fi)
+		dev = result->fi->fib_dev;
 
 	/* do not accept result if the route does
 	 * not meet the required prefix length
diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index 269a89ecd2f4..f7e522c558ba 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -6,13 +6,6 @@
 #include <linux/memcontrol.h>
 #include <linux/module.h>
 
-static void memcg_tcp_enter_memory_pressure(struct sock *sk)
-{
-	if (sk->sk_cgrp->memory_pressure)
-		sk->sk_cgrp->memory_pressure = 1;
-}
-EXPORT_SYMBOL(memcg_tcp_enter_memory_pressure);
-
 int tcp_init_cgroup(struct mem_cgroup *memcg, struct cgroup_subsys *ss)
 {
 	/*
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index e27591635f92..3fd0a578329e 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -122,7 +122,11 @@ out:
 static bool fib6_rule_suppress(struct fib_rule *rule, struct fib_lookup_arg *arg)
 {
 	struct rt6_info *rt = (struct rt6_info *) arg->result;
-	struct net_device *dev = rt->rt6i_idev->dev;
+	struct net_device *dev = NULL;
+
+	if (rt->rt6i_idev)
+		dev = rt->rt6i_idev->dev;
+
 	/* do not accept result if the route does
 	 * not meet the required prefix length
 	 */
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index ddb9d41c8eea..a0a48ac3403f 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2166,12 +2166,10 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
 				    bool anycast)
 {
 	struct net *net = dev_net(idev->dev);
-	struct rt6_info *rt = ip6_dst_alloc(net, net->loopback_dev, 0, NULL);
-
-	if (!rt) {
-		net_warn_ratelimited("Maximum number of routes reached, consider increasing route/max_size\n");
+	struct rt6_info *rt = ip6_dst_alloc(net, net->loopback_dev,
+					    DST_NOCOUNT, NULL);
+	if (!rt)
 		return ERR_PTR(-ENOMEM);
-	}
 
 	in6_dev_hold(idev);
 
diff --git a/net/netfilter/ipset/ip_set_hash_netnet.c b/net/netfilter/ipset/ip_set_hash_netnet.c
index 2bc2dec20b00..6226803fc490 100644
--- a/net/netfilter/ipset/ip_set_hash_netnet.c
+++ b/net/netfilter/ipset/ip_set_hash_netnet.c
@@ -59,7 +59,7 @@ hash_netnet4_data_equal(const struct hash_netnet4_elem *ip1,
 		     u32 *multi)
 {
 	return ip1->ipcmp == ip2->ipcmp &&
-	       ip2->ccmp == ip2->ccmp;
+	       ip1->ccmp == ip2->ccmp;
 }
 
 static inline int
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index dcddc49c0e08..f93b7d06f4be 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1717,6 +1717,19 @@ nf_tables_delrule_one(struct nft_ctx *ctx, struct nft_rule *rule)
 	return -ENOENT;
 }
 
+static int nf_table_delrule_by_chain(struct nft_ctx *ctx)
+{
+	struct nft_rule *rule;
+	int err;
+
+	list_for_each_entry(rule, &ctx->chain->rules, list) {
+		err = nf_tables_delrule_one(ctx, rule);
+		if (err < 0)
+			return err;
+	}
+	return 0;
+}
+
 static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
 			     const struct nlmsghdr *nlh,
 			     const struct nlattr * const nla[])
@@ -1725,8 +1738,8 @@ static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
 	const struct nft_af_info *afi;
 	struct net *net = sock_net(skb->sk);
 	const struct nft_table *table;
-	struct nft_chain *chain;
-	struct nft_rule *rule, *tmp;
+	struct nft_chain *chain = NULL;
+	struct nft_rule *rule;
 	int family = nfmsg->nfgen_family, err = 0;
 	struct nft_ctx ctx;
 
@@ -1738,22 +1751,29 @@ static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
-	chain = nf_tables_chain_lookup(table, nla[NFTA_RULE_CHAIN]);
-	if (IS_ERR(chain))
-		return PTR_ERR(chain);
+	if (nla[NFTA_RULE_CHAIN]) {
+		chain = nf_tables_chain_lookup(table, nla[NFTA_RULE_CHAIN]);
+		if (IS_ERR(chain))
+			return PTR_ERR(chain);
+	}
 
 	nft_ctx_init(&ctx, skb, nlh, afi, table, chain, nla);
 
-	if (nla[NFTA_RULE_HANDLE]) {
-		rule = nf_tables_rule_lookup(chain, nla[NFTA_RULE_HANDLE]);
-		if (IS_ERR(rule))
-			return PTR_ERR(rule);
+	if (chain) {
+		if (nla[NFTA_RULE_HANDLE]) {
+			rule = nf_tables_rule_lookup(chain,
+						     nla[NFTA_RULE_HANDLE]);
+			if (IS_ERR(rule))
+				return PTR_ERR(rule);
 
-		err = nf_tables_delrule_one(&ctx, rule);
-	} else {
-		/* Remove all rules in this chain */
-		list_for_each_entry_safe(rule, tmp, &chain->rules, list) {
 			err = nf_tables_delrule_one(&ctx, rule);
+		} else {
+			err = nf_table_delrule_by_chain(&ctx);
+		}
+	} else {
+		list_for_each_entry(chain, &table->chains, list) {
+			ctx.chain = chain;
+			err = nf_table_delrule_by_chain(&ctx);
 			if (err < 0)
 				break;
 		}
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index 9ff035c71403..a3910fc2122b 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -325,21 +325,24 @@ static void htable_gc(unsigned long htlong)
 	add_timer(&ht->timer);
 }
 
-static void htable_destroy(struct xt_hashlimit_htable *hinfo)
+static void htable_remove_proc_entry(struct xt_hashlimit_htable *hinfo)
 {
 	struct hashlimit_net *hashlimit_net = hashlimit_pernet(hinfo->net);
 	struct proc_dir_entry *parent;
 
-	del_timer_sync(&hinfo->timer);
-
 	if (hinfo->family == NFPROTO_IPV4)
 		parent = hashlimit_net->ipt_hashlimit;
 	else
 		parent = hashlimit_net->ip6t_hashlimit;
 
-	if(parent != NULL)
+	if (parent != NULL)
 		remove_proc_entry(hinfo->name, parent);
+}
 
+static void htable_destroy(struct xt_hashlimit_htable *hinfo)
+{
+	del_timer_sync(&hinfo->timer);
+	htable_remove_proc_entry(hinfo);
 	htable_selective_cleanup(hinfo, select_all);
 	kfree(hinfo->name);
 	vfree(hinfo);
@@ -883,21 +886,15 @@ static int __net_init hashlimit_proc_net_init(struct net *net)
 static void __net_exit hashlimit_proc_net_exit(struct net *net)
 {
 	struct xt_hashlimit_htable *hinfo;
-	struct proc_dir_entry *pde;
 	struct hashlimit_net *hashlimit_net = hashlimit_pernet(net);
 
-	/* recent_net_exit() is called before recent_mt_destroy(). Make sure
-	 * that the parent xt_recent proc entry is is empty before trying to
-	 * remove it.
+	/* hashlimit_net_exit() is called before hashlimit_mt_destroy().
+	 * Make sure that the parent ipt_hashlimit and ip6t_hashlimit proc
+	 * entries is empty before trying to remove it.
 	 */
 	mutex_lock(&hashlimit_mutex);
-	pde = hashlimit_net->ipt_hashlimit;
-	if (pde == NULL)
-		pde = hashlimit_net->ip6t_hashlimit;
-
 	hlist_for_each_entry(hinfo, &hashlimit_net->htables, node)
-		remove_proc_entry(hinfo->name, pde);
-
+		htable_remove_proc_entry(hinfo);
 	hashlimit_net->ipt_hashlimit = NULL;
 	hashlimit_net->ip6t_hashlimit = NULL;
 	mutex_unlock(&hashlimit_mutex);
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index ba2548bd85bf..88cfbc189558 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -237,6 +237,30 @@ struct packet_skb_cb {
 static void __fanout_unlink(struct sock *sk, struct packet_sock *po);
 static void __fanout_link(struct sock *sk, struct packet_sock *po);
 
+static struct net_device *packet_cached_dev_get(struct packet_sock *po)
+{
+	struct net_device *dev;
+
+	rcu_read_lock();
+	dev = rcu_dereference(po->cached_dev);
+	if (likely(dev))
+		dev_hold(dev);
+	rcu_read_unlock();
+
+	return dev;
+}
+
+static void packet_cached_dev_assign(struct packet_sock *po,
+				     struct net_device *dev)
+{
+	rcu_assign_pointer(po->cached_dev, dev);
+}
+
+static void packet_cached_dev_reset(struct packet_sock *po)
+{
+	RCU_INIT_POINTER(po->cached_dev, NULL);
+}
+
 /* register_prot_hook must be invoked with the po->bind_lock held,
  * or from a context in which asynchronous accesses to the packet
  * socket is not possible (packet_create()).
@@ -246,12 +270,10 @@ static void register_prot_hook(struct sock *sk)
 	struct packet_sock *po = pkt_sk(sk);
 
 	if (!po->running) {
-		if (po->fanout) {
+		if (po->fanout)
 			__fanout_link(sk, po);
-		} else {
+		else
 			dev_add_pack(&po->prot_hook);
-			rcu_assign_pointer(po->cached_dev, po->prot_hook.dev);
-		}
 
 		sock_hold(sk);
 		po->running = 1;
@@ -270,12 +292,11 @@ static void __unregister_prot_hook(struct sock *sk, bool sync)
 	struct packet_sock *po = pkt_sk(sk);
 
 	po->running = 0;
-	if (po->fanout) {
+
+	if (po->fanout)
 		__fanout_unlink(sk, po);
-	} else {
+	else
 		__dev_remove_pack(&po->prot_hook);
-		RCU_INIT_POINTER(po->cached_dev, NULL);
-	}
 
 	__sock_put(sk);
 
@@ -2059,19 +2080,6 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb,
 	return tp_len;
 }
 
-static struct net_device *packet_cached_dev_get(struct packet_sock *po)
-{
-	struct net_device *dev;
-
-	rcu_read_lock();
-	dev = rcu_dereference(po->cached_dev);
-	if (dev)
-		dev_hold(dev);
-	rcu_read_unlock();
-
-	return dev;
-}
-
 static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 {
 	struct sk_buff *skb;
@@ -2088,7 +2096,7 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 
 	mutex_lock(&po->pg_vec_lock);
 
-	if (saddr == NULL) {
+	if (likely(saddr == NULL)) {
 		dev	= packet_cached_dev_get(po);
 		proto	= po->num;
 		addr	= NULL;
@@ -2242,7 +2250,7 @@ static int packet_snd(struct socket *sock,
 	 *	Get and verify the address.
 	 */
 
-	if (saddr == NULL) {
+	if (likely(saddr == NULL)) {
 		dev	= packet_cached_dev_get(po);
 		proto	= po->num;
 		addr	= NULL;
@@ -2451,6 +2459,8 @@ static int packet_release(struct socket *sock)
 
 	spin_lock(&po->bind_lock);
 	unregister_prot_hook(sk, false);
+	packet_cached_dev_reset(po);
+
 	if (po->prot_hook.dev) {
 		dev_put(po->prot_hook.dev);
 		po->prot_hook.dev = NULL;
@@ -2506,14 +2516,17 @@ static int packet_do_bind(struct sock *sk, struct net_device *dev, __be16 protoc
 
 	spin_lock(&po->bind_lock);
 	unregister_prot_hook(sk, true);
+
 	po->num = protocol;
 	po->prot_hook.type = protocol;
 	if (po->prot_hook.dev)
 		dev_put(po->prot_hook.dev);
-	po->prot_hook.dev = dev;
 
+	po->prot_hook.dev = dev;
 	po->ifindex = dev ? dev->ifindex : 0;
 
+	packet_cached_dev_assign(po, dev);
+
 	if (protocol == 0)
 		goto out_unlock;
 
@@ -2626,7 +2639,8 @@ static int packet_create(struct net *net, struct socket *sock, int protocol,
 	po = pkt_sk(sk);
 	sk->sk_family = PF_PACKET;
 	po->num = proto;
-	RCU_INIT_POINTER(po->cached_dev, NULL);
+
+	packet_cached_dev_reset(po);
 
 	sk->sk_destruct = packet_sock_destruct;
 	sk_refcnt_debug_inc(sk);
@@ -3337,6 +3351,7 @@ static int packet_notifier(struct notifier_block *this,
 						sk->sk_error_report(sk);
 				}
 				if (msg == NETDEV_UNREGISTER) {
+					packet_cached_dev_reset(po);
 					po->ifindex = -1;
 					if (po->prot_hook.dev)
 						dev_put(po->prot_hook.dev);
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index fd7072827a40..69cb848e8345 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -270,6 +270,16 @@ int tcf_register_action(struct tc_action_ops *act)
 {
 	struct tc_action_ops *a, **ap;
 
+	/* Must supply act, dump, cleanup and init */
+	if (!act->act || !act->dump || !act->cleanup || !act->init)
+		return -EINVAL;
+
+	/* Supply defaults */
+	if (!act->lookup)
+		act->lookup = tcf_hash_search;
+	if (!act->walk)
+		act->walk = tcf_generic_walker;
+
 	write_lock(&act_mod_lock);
 	for (ap = &act_base; (a = *ap) != NULL; ap = &a->next) {
 		if (act->type == a->type || (strcmp(act->kind, a->kind) == 0)) {
@@ -381,7 +391,7 @@ int tcf_action_exec(struct sk_buff *skb, const struct tc_action *act,
 	}
 	while ((a = act) != NULL) {
 repeat:
-		if (a->ops && a->ops->act) {
+		if (a->ops) {
 			ret = a->ops->act(skb, a, res);
 			if (TC_MUNGED & skb->tc_verd) {
 				/* copied already, allow trampling */
@@ -405,7 +415,7 @@ void tcf_action_destroy(struct tc_action *act, int bind)
 	struct tc_action *a;
 
 	for (a = act; a; a = act) {
-		if (a->ops && a->ops->cleanup) {
+		if (a->ops) {
 			if (a->ops->cleanup(a, bind) == ACT_P_DELETED)
 				module_put(a->ops->owner);
 			act = act->next;
@@ -424,7 +434,7 @@ tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
 {
 	int err = -EINVAL;
 
-	if (a->ops == NULL || a->ops->dump == NULL)
+	if (a->ops == NULL)
 		return err;
 	return a->ops->dump(skb, a, bind, ref);
 }
@@ -436,7 +446,7 @@ tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
 	unsigned char *b = skb_tail_pointer(skb);
 	struct nlattr *nest;
 
-	if (a->ops == NULL || a->ops->dump == NULL)
+	if (a->ops == NULL)
 		return err;
 
 	if (nla_put_string(skb, TCA_KIND, a->ops->kind))
@@ -723,8 +733,6 @@ tcf_action_get_1(struct nlattr *nla, struct nlmsghdr *n, u32 portid)
 	a->ops = tc_lookup_action(tb[TCA_ACT_KIND]);
 	if (a->ops == NULL)
 		goto err_free;
-	if (a->ops->lookup == NULL)
-		goto err_mod;
 	err = -ENOENT;
 	if (a->ops->lookup(a, index) == 0)
 		goto err_mod;
@@ -1084,12 +1092,6 @@ tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb)
 	memset(&a, 0, sizeof(struct tc_action));
 	a.ops = a_o;
 
-	if (a_o->walk == NULL) {
-		WARN(1, "tc_dump_action: %s !capable of dumping table\n",
-		     a_o->kind);
-		goto out_module_put;
-	}
-
 	nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
 			cb->nlh->nlmsg_type, sizeof(*t), 0);
 	if (!nlh)
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index 3a4c0caa1f7d..5c5edf56adbd 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -585,9 +585,7 @@ static struct tc_action_ops act_csum_ops = {
 	.act		= tcf_csum,
 	.dump		= tcf_csum_dump,
 	.cleanup	= tcf_csum_cleanup,
-	.lookup		= tcf_hash_search,
 	.init		= tcf_csum_init,
-	.walk		= tcf_generic_walker
 };
 
 MODULE_DESCRIPTION("Checksum updating actions");
diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
index fd2b3cff5fa2..5645a4d32abd 100644
--- a/net/sched/act_gact.c
+++ b/net/sched/act_gact.c
@@ -206,9 +206,7 @@ static struct tc_action_ops act_gact_ops = {
 	.act		=	tcf_gact,
 	.dump		=	tcf_gact_dump,
 	.cleanup	=	tcf_gact_cleanup,
-	.lookup		=	tcf_hash_search,
 	.init		=	tcf_gact_init,
-	.walk		=	tcf_generic_walker
 };
 
 MODULE_AUTHOR("Jamal Hadi Salim(2002-4)");
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 60d88b6b9560..882a89762f77 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -298,9 +298,7 @@ static struct tc_action_ops act_ipt_ops = {
 	.act		=	tcf_ipt,
 	.dump		=	tcf_ipt_dump,
 	.cleanup	=	tcf_ipt_cleanup,
-	.lookup		=	tcf_hash_search,
 	.init		=	tcf_ipt_init,
-	.walk		=	tcf_generic_walker
 };
 
 static struct tc_action_ops act_xt_ops = {
@@ -312,9 +310,7 @@ static struct tc_action_ops act_xt_ops = {
 	.act		=	tcf_ipt,
 	.dump		=	tcf_ipt_dump,
 	.cleanup	=	tcf_ipt_cleanup,
-	.lookup		=	tcf_hash_search,
 	.init		=	tcf_ipt_init,
-	.walk		=	tcf_generic_walker
 };
 
 MODULE_AUTHOR("Jamal Hadi Salim(2002-13)");
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 977c10e0631b..252378121ce7 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -271,9 +271,7 @@ static struct tc_action_ops act_mirred_ops = {
 	.act		=	tcf_mirred,
 	.dump		=	tcf_mirred_dump,
 	.cleanup	=	tcf_mirred_cleanup,
-	.lookup		=	tcf_hash_search,
 	.init		=	tcf_mirred_init,
-	.walk		=	tcf_generic_walker
 };
 
 MODULE_AUTHOR("Jamal Hadi Salim(2002)");
diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c
index 876f0ef29694..6a15ace00241 100644
--- a/net/sched/act_nat.c
+++ b/net/sched/act_nat.c
@@ -308,9 +308,7 @@ static struct tc_action_ops act_nat_ops = {
 	.act		=	tcf_nat,
 	.dump		=	tcf_nat_dump,
 	.cleanup	=	tcf_nat_cleanup,
-	.lookup		=	tcf_hash_search,
 	.init		=	tcf_nat_init,
-	.walk		=	tcf_generic_walker
 };
 
 MODULE_DESCRIPTION("Stateless NAT actions");
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index 7ed78c9e505c..03b67674169c 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -243,9 +243,7 @@ static struct tc_action_ops act_pedit_ops = {
 	.act		=	tcf_pedit,
 	.dump		=	tcf_pedit_dump,
 	.cleanup	=	tcf_pedit_cleanup,
-	.lookup		=	tcf_hash_search,
 	.init		=	tcf_pedit_init,
-	.walk		=	tcf_generic_walker
 };
 
 MODULE_AUTHOR("Jamal Hadi Salim(2002-4)");
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index 272d8e924cf6..16a62c36928a 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -407,7 +407,6 @@ static struct tc_action_ops act_police_ops = {
 	.act		=	tcf_act_police,
 	.dump		=	tcf_act_police_dump,
 	.cleanup	=	tcf_act_police_cleanup,
-	.lookup		=	tcf_hash_search,
 	.init		=	tcf_act_police_locate,
 	.walk		=	tcf_act_police_walker
 };
diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
index 7725eb4ab756..31157d3e729c 100644
--- a/net/sched/act_simple.c
+++ b/net/sched/act_simple.c
@@ -201,7 +201,6 @@ static struct tc_action_ops act_simp_ops = {
 	.dump		=	tcf_simp_dump,
 	.cleanup	=	tcf_simp_cleanup,
 	.init		=	tcf_simp_init,
-	.walk		=	tcf_generic_walker,
 };
 
 MODULE_AUTHOR("Jamal Hadi Salim(2005)");
diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c
index cb4221171f93..35ea643b4325 100644
--- a/net/sched/act_skbedit.c
+++ b/net/sched/act_skbedit.c
@@ -203,7 +203,6 @@ static struct tc_action_ops act_skbedit_ops = {
 	.dump		=	tcf_skbedit_dump,
 	.cleanup	=	tcf_skbedit_cleanup,
 	.init		=	tcf_skbedit_init,
-	.walk		=	tcf_generic_walker,
 };
 
 MODULE_AUTHOR("Alexander Duyck, <alexander.h.duyck@intel.com>");
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index e332efb124cc..efc46ffed1fd 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -573,7 +573,7 @@ void sctp_transport_burst_limited(struct sctp_transport *t)
 	u32 old_cwnd = t->cwnd;
 	u32 max_burst_bytes;
 
-	if (t->burst_limited)
+	if (t->burst_limited || asoc->max_burst == 0)
 		return;
 
 	max_burst_bytes = t->flight_size + (asoc->max_burst * asoc->pathmtu);