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

Pull networking fixes from David Miller"
 "What's a holiday weekend without some networking bug fixes? [1]

   1) Fix some eBPF JIT bugs wrt. SKB pointers across helper function
      calls, from Daniel Borkmann.

   2) Fix regression from errata limiting change to marvell PHY driver,
      from Zhao Qiang.

   3) Fix u16 overflow in SCTP, from Xin Long.

   4) Fix potential memory leak during bridge newlink, from Nikolay
      Aleksandrov.

   5) Fix BPF selftest build on s390, from Hendrik Brueckner.

   6) Don't append to cfg80211 automatically generated certs file,
      always write new ones from scratch. From Thierry Reding.

   7) Fix sleep in atomic in mac80211 hwsim, from Jia-Ju Bai.

   8) Fix hang on tg3 MTU change with certain chips, from Brian King.

   9) Add stall detection to arc emac driver and reset chip when this
      happens, from Alexander Kochetkov.

  10) Fix MTU limitng in GRE tunnel drivers, from Xin Long.

  11) Fix stmmac timestamping bug due to mis-shifting of field. From
      Fredrik Hallenberg.

  12) Fix metrics match when deleting an ipv4 route. The kernel sets
      some internal metrics bits which the user isn't going to set when
      it makes the delete request. From Phil Sutter.

  13) mvneta driver loop over RX queues limits on "txq_number" :-) Fix
      from Yelena Krivosheev.

  14) Fix double free and memory corruption in get_net_ns_by_id, from
      Eric W. Biederman.

  15) Flush ipv4 FIB tables in the reverse order. Some tables can share
      their actual backing data, in particular this happens for the MAIN
      and LOCAL tables. We have to kill the LOCAL table first, because
      it uses MAIN's backing memory. Fix from Ido Schimmel.

  16) Several eBPF verifier value tracking fixes, from Edward Cree, Jann
      Horn, and Alexei Starovoitov.

  17) Make changes to ipv6 autoflowlabel sysctl really propagate to
      sockets, unless the socket has set the per-socket value
      explicitly. From Shaohua Li.

  18) Fix leaks and double callback invocations of zerocopy SKBs, from
      Willem de Bruijn"

[1] Is this a trick question? "Relaxing"? "Quiet"? "Fine"? - Linus.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (77 commits)
  skbuff: skb_copy_ubufs must release uarg even without user frags
  skbuff: orphan frags before zerocopy clone
  net: reevalulate autoflowlabel setting after sysctl setting
  openvswitch: Fix pop_vlan action for double tagged frames
  ipv6: Honor specified parameters in fibmatch lookup
  bpf: do not allow root to mangle valid pointers
  selftests/bpf: add tests for recent bugfixes
  bpf: fix integer overflows
  bpf: don't prune branches when a scalar is replaced with a pointer
  bpf: force strict alignment checks for stack pointers
  bpf: fix missing error return in check_stack_boundary()
  bpf: fix 32-bit ALU op verification
  bpf: fix incorrect tracking of register size truncation
  bpf: fix incorrect sign extension in check_alu_op()
  bpf/verifier: fix bounds calculation on BPF_RSH
  ipv4: Fix use-after-free when flushing FIB tables
  s390/qeth: fix error handling in checksum cmd callback
  tipc: remove joining group member from congested list
  selftests: net: Adding config fragment CONFIG_NUMA=y
  nfp: bpf: keep track of the offloaded program
  ...

22 files changed, 226 insertions, 132 deletions

diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index d0ef0a8e8831..015f465c514b 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1262,19 +1262,20 @@ static int br_dev_newlink(struct net *src_net, struct net_device *dev,
 	struct net_bridge *br = netdev_priv(dev);
 	int err;
 
+	err = register_netdevice(dev);
+	if (err)
+		return err;
+
 	if (tb[IFLA_ADDRESS]) {
 		spin_lock_bh(&br->lock);
 		br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
 		spin_unlock_bh(&br->lock);
 	}
 
-	err = register_netdevice(dev);
-	if (err)
-		return err;
-
 	err = br_changelink(dev, tb, data, extack);
 	if (err)
-		unregister_netdevice(dev);
+		br_dev_delete(dev, NULL);
+
 	return err;
 }
 
diff --git a/net/core/dev.c b/net/core/dev.c
index f47e96b62308..01ee854454a8 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3904,7 +3904,7 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb,
 				     hroom > 0 ? ALIGN(hroom, NET_SKB_PAD) : 0,
 				     troom > 0 ? troom + 128 : 0, GFP_ATOMIC))
 			goto do_drop;
-		if (troom > 0 && __skb_linearize(skb))
+		if (skb_linearize(skb))
 			goto do_drop;
 	}
 
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index b797832565d3..60a71be75aea 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -267,7 +267,7 @@ struct net *get_net_ns_by_id(struct net *net, int id)
 	spin_lock_bh(&net->nsid_lock);
 	peer = idr_find(&net->netns_ids, id);
 	if (peer)
-		get_net(peer);
+		peer = maybe_get_net(peer);
 	spin_unlock_bh(&net->nsid_lock);
 	rcu_read_unlock();
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index a592ca025fc4..a3cb0be4c6f3 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1178,7 +1178,7 @@ int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask)
 	u32 d_off;
 
 	if (!num_frags)
-		return 0;
+		goto release;
 
 	if (skb_shared(skb) || skb_unclone(skb, gfp_mask))
 		return -EINVAL;
@@ -1238,6 +1238,7 @@ int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask)
 	__skb_fill_page_desc(skb, new_frags - 1, head, 0, d_off);
 	skb_shinfo(skb)->nr_frags = new_frags;
 
+release:
 	skb_zcopy_clear(skb, false);
 	return 0;
 }
@@ -3654,8 +3655,6 @@ normal:
 
 		skb_shinfo(nskb)->tx_flags |= skb_shinfo(head_skb)->tx_flags &
 					      SKBTX_SHARED_FRAG;
-		if (skb_zerocopy_clone(nskb, head_skb, GFP_ATOMIC))
-			goto err;
 
 		while (pos < offset + len) {
 			if (i >= nfrags) {
@@ -3681,6 +3680,8 @@ normal:
 
 			if (unlikely(skb_orphan_frags(frag_skb, GFP_ATOMIC)))
 				goto err;
+			if (skb_zerocopy_clone(nskb, frag_skb, GFP_ATOMIC))
+				goto err;
 
 			*nskb_frag = *frag;
 			__skb_frag_ref(nskb_frag);
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index f52d27a422c3..08259d078b1c 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1298,14 +1298,19 @@ err_table_hash_alloc:
 
 static void ip_fib_net_exit(struct net *net)
 {
-	unsigned int i;
+	int i;
 
 	rtnl_lock();
 #ifdef CONFIG_IP_MULTIPLE_TABLES
 	RCU_INIT_POINTER(net->ipv4.fib_main, NULL);
 	RCU_INIT_POINTER(net->ipv4.fib_default, NULL);
 #endif
-	for (i = 0; i < FIB_TABLE_HASHSZ; i++) {
+	/* Destroy the tables in reverse order to guarantee that the
+	 * local table, ID 255, is destroyed before the main table, ID
+	 * 254. This is necessary as the local table may contain
+	 * references to data contained in the main table.
+	 */
+	for (i = FIB_TABLE_HASHSZ - 1; i >= 0; i--) {
 		struct hlist_head *head = &net->ipv4.fib_table_hash[i];
 		struct hlist_node *tmp;
 		struct fib_table *tb;
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index f04d944f8abe..c586597da20d 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -698,7 +698,7 @@ bool fib_metrics_match(struct fib_config *cfg, struct fib_info *fi)
 
 	nla_for_each_attr(nla, cfg->fc_mx, cfg->fc_mx_len, remaining) {
 		int type = nla_type(nla);
-		u32 val;
+		u32 fi_val, val;
 
 		if (!type)
 			continue;
@@ -715,7 +715,11 @@ bool fib_metrics_match(struct fib_config *cfg, struct fib_info *fi)
 			val = nla_get_u32(nla);
 		}
 
-		if (fi->fib_metrics->metrics[type - 1] != val)
+		fi_val = fi->fib_metrics->metrics[type - 1];
+		if (type == RTAX_FEATURES)
+			fi_val &= ~DST_FEATURE_ECN_CA;
+
+		if (fi_val != val)
 			return false;
 	}
 
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 9c1735632c8c..45ffd3d045d2 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -1310,6 +1310,7 @@ static const struct net_device_ops erspan_netdev_ops = {
 static void ipgre_tap_setup(struct net_device *dev)
 {
 	ether_setup(dev);
+	dev->max_mtu = 0;
 	dev->netdev_ops	= &gre_tap_netdev_ops;
 	dev->priv_flags &= ~IFF_TX_SKB_SHARING;
 	dev->priv_flags	|= IFF_LIVE_ADDR_CHANGE;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index c26f71234b9c..c9441ca45399 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -210,7 +210,6 @@ lookup_protocol:
 	np->mcast_hops	= IPV6_DEFAULT_MCASTHOPS;
 	np->mc_loop	= 1;
 	np->pmtudisc	= IPV6_PMTUDISC_WANT;
-	np->autoflowlabel = ip6_default_np_autolabel(net);
 	np->repflow	= net->ipv6.sysctl.flowlabel_reflect;
 	sk->sk_ipv6only	= net->ipv6.sysctl.bindv6only;
 
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 4cfd8e0696fe..416c8913f132 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1308,6 +1308,7 @@ static void ip6gre_tap_setup(struct net_device *dev)
 
 	ether_setup(dev);
 
+	dev->max_mtu = 0;
 	dev->netdev_ops = &ip6gre_tap_netdev_ops;
 	dev->needs_free_netdev = true;
 	dev->priv_destructor = ip6gre_dev_free;
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 5110a418cc4d..f7dd51c42314 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -166,6 +166,14 @@ int ip6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
 			    !(IP6CB(skb)->flags & IP6SKB_REROUTED));
 }
 
+static bool ip6_autoflowlabel(struct net *net, const struct ipv6_pinfo *np)
+{
+	if (!np->autoflowlabel_set)
+		return ip6_default_np_autolabel(net);
+	else
+		return np->autoflowlabel;
+}
+
 /*
  * xmit an sk_buff (used by TCP, SCTP and DCCP)
  * Note : socket lock is not held for SYNACK packets, but might be modified
@@ -230,7 +238,7 @@ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
 		hlimit = ip6_dst_hoplimit(dst);
 
 	ip6_flow_hdr(hdr, tclass, ip6_make_flowlabel(net, skb, fl6->flowlabel,
-						     np->autoflowlabel, fl6));
+				ip6_autoflowlabel(net, np), fl6));
 
 	hdr->payload_len = htons(seg_len);
 	hdr->nexthdr = proto;
@@ -1626,7 +1634,7 @@ struct sk_buff *__ip6_make_skb(struct sock *sk,
 
 	ip6_flow_hdr(hdr, v6_cork->tclass,
 		     ip6_make_flowlabel(net, skb, fl6->flowlabel,
-					np->autoflowlabel, fl6));
+					ip6_autoflowlabel(net, np), fl6));
 	hdr->hop_limit = v6_cork->hop_limit;
 	hdr->nexthdr = proto;
 	hdr->saddr = fl6->saddr;
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index db84f523656d..931c38f6ff4a 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1123,8 +1123,13 @@ route_lookup:
 		max_headroom += 8;
 		mtu -= 8;
 	}
-	if (mtu < IPV6_MIN_MTU)
-		mtu = IPV6_MIN_MTU;
+	if (skb->protocol == htons(ETH_P_IPV6)) {
+		if (mtu < IPV6_MIN_MTU)
+			mtu = IPV6_MIN_MTU;
+	} else if (mtu < 576) {
+		mtu = 576;
+	}
+
 	if (skb_dst(skb) && !t->parms.collect_md)
 		skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu);
 	if (skb->len - t->tun_hlen - eth_hlen > mtu && !skb_is_gso(skb)) {
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index b9404feabd78..2d4680e0376f 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -886,6 +886,7 @@ pref_skip_coa:
 		break;
 	case IPV6_AUTOFLOWLABEL:
 		np->autoflowlabel = valbool;
+		np->autoflowlabel_set = 1;
 		retv = 0;
 		break;
 	case IPV6_RECVFRAGSIZE:
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 7a8d1500d374..0458b761f3c5 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2336,6 +2336,7 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
 	}
 
 	rt->dst.flags |= DST_HOST;
+	rt->dst.input = ip6_input;
 	rt->dst.output  = ip6_output;
 	rt->rt6i_gateway  = fl6->daddr;
 	rt->rt6i_dst.addr = fl6->daddr;
@@ -4297,19 +4298,13 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh,
 		if (!ipv6_addr_any(&fl6.saddr))
 			flags |= RT6_LOOKUP_F_HAS_SADDR;
 
-		if (!fibmatch)
-			dst = ip6_route_input_lookup(net, dev, &fl6, flags);
-		else
-			dst = ip6_route_lookup(net, &fl6, 0);
+		dst = ip6_route_input_lookup(net, dev, &fl6, flags);
 
 		rcu_read_unlock();
 	} else {
 		fl6.flowi6_oif = oif;
 
-		if (!fibmatch)
-			dst = ip6_route_output(net, NULL, &fl6);
-		else
-			dst = ip6_route_lookup(net, &fl6, 0);
+		dst = ip6_route_output(net, NULL, &fl6);
 	}
 
 
@@ -4326,6 +4321,15 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh,
 		goto errout;
 	}
 
+	if (fibmatch && rt->dst.from) {
+		struct rt6_info *ort = container_of(rt->dst.from,
+						    struct rt6_info, dst);
+
+		dst_hold(&ort->dst);
+		ip6_rt_put(rt);
+		rt = ort;
+	}
+
 	skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
 	if (!skb) {
 		ip6_rt_put(rt);
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index dbe2379329c5..f039064ce922 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -579,6 +579,7 @@ static int key_extract(struct sk_buff *skb, struct sw_flow_key *key)
 			return -EINVAL;
 
 		skb_reset_network_header(skb);
+		key->eth.type = skb->protocol;
 	} else {
 		eth = eth_hdr(skb);
 		ether_addr_copy(key->eth.src, eth->h_source);
@@ -592,15 +593,23 @@ static int key_extract(struct sk_buff *skb, struct sw_flow_key *key)
 		if (unlikely(parse_vlan(skb, key)))
 			return -ENOMEM;
 
-		skb->protocol = parse_ethertype(skb);
-		if (unlikely(skb->protocol == htons(0)))
+		key->eth.type = parse_ethertype(skb);
+		if (unlikely(key->eth.type == htons(0)))
 			return -ENOMEM;
 
+		/* Multiple tagged packets need to retain TPID to satisfy
+		 * skb_vlan_pop(), which will later shift the ethertype into
+		 * skb->protocol.
+		 */
+		if (key->eth.cvlan.tci & htons(VLAN_TAG_PRESENT))
+			skb->protocol = key->eth.cvlan.tpid;
+		else
+			skb->protocol = key->eth.type;
+
 		skb_reset_network_header(skb);
 		__skb_push(skb, skb->data - skb_mac_header(skb));
 	}
 	skb_reset_mac_len(skb);
-	key->eth.type = skb->protocol;
 
 	/* Network layer. */
 	if (key->eth.type == htons(ETH_P_IP)) {
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index 6fe798c2df1a..8d78e7f4ecc3 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c
@@ -42,7 +42,6 @@ struct cls_bpf_prog {
 	struct list_head link;
 	struct tcf_result res;
 	bool exts_integrated;
-	bool offloaded;
 	u32 gen_flags;
 	struct tcf_exts exts;
 	u32 handle;
@@ -148,33 +147,37 @@ static bool cls_bpf_is_ebpf(const struct cls_bpf_prog *prog)
 }
 
 static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog,
-			       enum tc_clsbpf_command cmd)
+			       struct cls_bpf_prog *oldprog)
 {
-	bool addorrep = cmd == TC_CLSBPF_ADD || cmd == TC_CLSBPF_REPLACE;
 	struct tcf_block *block = tp->chain->block;
-	bool skip_sw = tc_skip_sw(prog->gen_flags);
 	struct tc_cls_bpf_offload cls_bpf = {};
+	struct cls_bpf_prog *obj;
+	bool skip_sw;
 	int err;
 
+	skip_sw = prog && tc_skip_sw(prog->gen_flags);
+	obj = prog ?: oldprog;
+
 	tc_cls_common_offload_init(&cls_bpf.common, tp);
-	cls_bpf.command = cmd;
-	cls_bpf.exts = &prog->exts;
-	cls_bpf.prog = prog->filter;
-	cls_bpf.name = prog->bpf_name;
-	cls_bpf.exts_integrated = prog->exts_integrated;
-	cls_bpf.gen_flags = prog->gen_flags;
+	cls_bpf.command = TC_CLSBPF_OFFLOAD;
+	cls_bpf.exts = &obj->exts;
+	cls_bpf.prog = prog ? prog->filter : NULL;
+	cls_bpf.oldprog = oldprog ? oldprog->filter : NULL;
+	cls_bpf.name = obj->bpf_name;
+	cls_bpf.exts_integrated = obj->exts_integrated;
+	cls_bpf.gen_flags = obj->gen_flags;
 
 	err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSBPF, &cls_bpf, skip_sw);
-	if (addorrep) {
+	if (prog) {
 		if (err < 0) {
-			cls_bpf_offload_cmd(tp, prog, TC_CLSBPF_DESTROY);
+			cls_bpf_offload_cmd(tp, oldprog, prog);
 			return err;
 		} else if (err > 0) {
 			prog->gen_flags |= TCA_CLS_FLAGS_IN_HW;
 		}
 	}
 
-	if (addorrep && skip_sw && !(prog->gen_flags & TCA_CLS_FLAGS_IN_HW))
+	if (prog && skip_sw && !(prog->gen_flags & TCA_CLS_FLAGS_IN_HW))
 		return -EINVAL;
 
 	return 0;
@@ -183,38 +186,17 @@ static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog,
 static int cls_bpf_offload(struct tcf_proto *tp, struct cls_bpf_prog *prog,
 			   struct cls_bpf_prog *oldprog)
 {
-	struct cls_bpf_prog *obj = prog;
-	enum tc_clsbpf_command cmd;
-	bool skip_sw;
-	int ret;
-
-	skip_sw = tc_skip_sw(prog->gen_flags) ||
-		(oldprog && tc_skip_sw(oldprog->gen_flags));
-
-	if (oldprog && oldprog->offloaded) {
-		if (!tc_skip_hw(prog->gen_flags)) {
-			cmd = TC_CLSBPF_REPLACE;
-		} else if (!tc_skip_sw(prog->gen_flags)) {
-			obj = oldprog;
-			cmd = TC_CLSBPF_DESTROY;
-		} else {
-			return -EINVAL;
-		}
-	} else {
-		if (tc_skip_hw(prog->gen_flags))
-			return skip_sw ? -EINVAL : 0;
-		cmd = TC_CLSBPF_ADD;
-	}
-
-	ret = cls_bpf_offload_cmd(tp, obj, cmd);
-	if (ret)
-		return ret;
+	if (prog && oldprog && prog->gen_flags != oldprog->gen_flags)
+		return -EINVAL;
 
-	obj->offloaded = true;
-	if (oldprog)
-		oldprog->offloaded = false;
+	if (prog && tc_skip_hw(prog->gen_flags))
+		prog = NULL;
+	if (oldprog && tc_skip_hw(oldprog->gen_flags))
+		oldprog = NULL;
+	if (!prog && !oldprog)
+		return 0;
 
-	return 0;
+	return cls_bpf_offload_cmd(tp, prog, oldprog);
 }
 
 static void cls_bpf_stop_offload(struct tcf_proto *tp,
@@ -222,25 +204,26 @@ static void cls_bpf_stop_offload(struct tcf_proto *tp,
 {
 	int err;
 
-	if (!prog->offloaded)
-		return;
-
-	err = cls_bpf_offload_cmd(tp, prog, TC_CLSBPF_DESTROY);
-	if (err) {
+	err = cls_bpf_offload_cmd(tp, NULL, prog);
+	if (err)
 		pr_err("Stopping hardware offload failed: %d\n", err);
-		return;
-	}
-
-	prog->offloaded = false;
 }
 
 static void cls_bpf_offload_update_stats(struct tcf_proto *tp,
 					 struct cls_bpf_prog *prog)
 {
-	if (!prog->offloaded)
-		return;
+	struct tcf_block *block = tp->chain->block;
+	struct tc_cls_bpf_offload cls_bpf = {};
+
+	tc_cls_common_offload_init(&cls_bpf.common, tp);
+	cls_bpf.command = TC_CLSBPF_STATS;
+	cls_bpf.exts = &prog->exts;
+	cls_bpf.prog = prog->filter;
+	cls_bpf.name = prog->bpf_name;
+	cls_bpf.exts_integrated = prog->exts_integrated;
+	cls_bpf.gen_flags = prog->gen_flags;
 
-	cls_bpf_offload_cmd(tp, prog, TC_CLSBPF_STATS);
+	tc_setup_cb_call(block, NULL, TC_SETUP_CLSBPF, &cls_bpf, false);
 }
 
 static int cls_bpf_init(struct tcf_proto *tp)
diff --git a/net/sctp/debug.c b/net/sctp/debug.c
index 3f619fdcbf0a..291c97b07058 100644
--- a/net/sctp/debug.c
+++ b/net/sctp/debug.c
@@ -78,6 +78,9 @@ const char *sctp_cname(const union sctp_subtype cid)
 	case SCTP_CID_AUTH:
 		return "AUTH";
 
+	case SCTP_CID_RECONF:
+		return "RECONF";
+
 	default:
 		break;
 	}
diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c
index a71be33f3afe..e36ec5dd64c6 100644
--- a/net/sctp/ulpqueue.c
+++ b/net/sctp/ulpqueue.c
@@ -1084,29 +1084,21 @@ void sctp_ulpq_partial_delivery(struct sctp_ulpq *ulpq,
 void sctp_ulpq_renege(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk,
 		      gfp_t gfp)
 {
-	struct sctp_association *asoc;
-	__u16 needed, freed;
-
-	asoc = ulpq->asoc;
+	struct sctp_association *asoc = ulpq->asoc;
+	__u32 freed = 0;
+	__u16 needed;
 
-	if (chunk) {
-		needed = ntohs(chunk->chunk_hdr->length);
-		needed -= sizeof(struct sctp_data_chunk);
-	} else
-		needed = SCTP_DEFAULT_MAXWINDOW;
-
-	freed = 0;
+	needed = ntohs(chunk->chunk_hdr->length) -
+		 sizeof(struct sctp_data_chunk);
 
 	if (skb_queue_empty(&asoc->base.sk->sk_receive_queue)) {
 		freed = sctp_ulpq_renege_order(ulpq, needed);
-		if (freed < needed) {
+		if (freed < needed)
 			freed += sctp_ulpq_renege_frags(ulpq, needed - freed);
-		}
 	}
 	/* If able to free enough room, accept this chunk. */
-	if (chunk && (freed >= needed)) {
-		int retval;
-		retval = sctp_ulpq_tail_data(ulpq, chunk, gfp);
+	if (freed >= needed) {
+		int retval = sctp_ulpq_tail_data(ulpq, chunk, gfp);
 		/*
 		 * Enter partial delivery if chunk has not been
 		 * delivered; otherwise, drain the reassembly queue.
diff --git a/net/tipc/group.c b/net/tipc/group.c
index 95fec2c057d6..7ebbdeb2a90e 100644
--- a/net/tipc/group.c
+++ b/net/tipc/group.c
@@ -351,8 +351,7 @@ void tipc_group_update_member(struct tipc_member *m, int len)
 	if (m->window >= ADV_IDLE)
 		return;
 
-	if (!list_empty(&m->congested))
-		return;
+	list_del_init(&m->congested);
 
 	/* Sort member into congested members' list */
 	list_for_each_entry_safe(_m, tmp, &grp->congested, congested) {
@@ -648,6 +647,7 @@ static void tipc_group_proto_xmit(struct tipc_group *grp, struct tipc_member *m,
 	} else if (mtyp == GRP_REMIT_MSG) {
 		msg_set_grp_remitted(hdr, m->window);
 	}
+	msg_set_dest_droppable(hdr, true);
 	__skb_queue_tail(xmitq, skb);
 }
 
@@ -689,15 +689,16 @@ void tipc_group_proto_rcv(struct tipc_group *grp, bool *usr_wakeup,
 			msg_set_grp_bc_seqno(ehdr, m->bc_syncpt);
 			__skb_queue_tail(inputq, m->event_msg);
 		}
-		if (m->window < ADV_IDLE)
-			tipc_group_update_member(m, 0);
-		else
-			list_del_init(&m->congested);
+		list_del_init(&m->congested);
+		tipc_group_update_member(m, 0);
 		return;
 	case GRP_LEAVE_MSG:
 		if (!m)
 			return;
 		m->bc_syncpt = msg_grp_bc_syncpt(hdr);
+		list_del_init(&m->list);
+		list_del_init(&m->congested);
+		*usr_wakeup = true;
 
 		/* Wait until WITHDRAW event is received */
 		if (m->state != MBR_LEAVING) {
@@ -709,8 +710,6 @@ void tipc_group_proto_rcv(struct tipc_group *grp, bool *usr_wakeup,
 		ehdr = buf_msg(m->event_msg);
 		msg_set_grp_bc_seqno(ehdr, m->bc_syncpt);
 		__skb_queue_tail(inputq, m->event_msg);
-		*usr_wakeup = true;
-		list_del_init(&m->congested);
 		return;
 	case GRP_ADV_MSG:
 		if (!m)
@@ -862,6 +861,7 @@ void tipc_group_member_evt(struct tipc_group *grp,
 				msg_set_grp_bc_seqno(hdr, m->bc_rcv_nxt);
 			__skb_queue_tail(inputq, skb);
 		}
+		list_del_init(&m->list);
 		list_del_init(&m->congested);
 	}
 	*sk_rcvbuf = tipc_group_rcvbuf_limit(grp);
diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index d7d6cb00c47b..1d84f91bbfb0 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -23,27 +23,14 @@ ifneq ($(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR),)
 cfg80211-y += extra-certs.o
 endif
 
-$(obj)/shipped-certs.c: $(wildcard $(srctree)/$(src)/certs/*.x509)
+$(obj)/shipped-certs.c: $(wildcard $(srctree)/$(src)/certs/*.hex)
 	@$(kecho) "  GEN     $@"
-	@(set -e; \
-	  allf=""; \
-	  for f in $^ ; do \
-	      # similar to hexdump -v -e '1/1 "0x%.2x," "\n"' \
-	      thisf=$$(od -An -v -tx1 < $$f | \
-	                   sed -e 's/ /\n/g' | \
-	                   sed -e 's/^[0-9a-f]\+$$/\0/;t;d' | \
-	                   sed -e 's/^/0x/;s/$$/,/'); \
-	      # file should not be empty - maybe command substitution failed? \
-	      test ! -z "$$thisf";\
-	      allf=$$allf$$thisf;\
-	  done; \
-	  ( \
-	      echo '#include "reg.h"'; \
-	      echo 'const u8 shipped_regdb_certs[] = {'; \
-	      echo "$$allf"; \
-	      echo '};'; \
-	      echo 'unsigned int shipped_regdb_certs_len = sizeof(shipped_regdb_certs);'; \
-	  ) >> $@)
+	@(echo '#include "reg.h"'; \
+	  echo 'const u8 shipped_regdb_certs[] = {'; \
+	  cat $^ ; \
+	  echo '};'; \
+	  echo 'unsigned int shipped_regdb_certs_len = sizeof(shipped_regdb_certs);'; \
+	 ) > $@
 
 $(obj)/extra-certs.c: $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR:"%"=%) \
 		      $(wildcard $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR:"%"=%)/*.x509)
@@ -66,4 +53,6 @@ $(obj)/extra-certs.c: $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR:"%"=%) \
 	      echo "$$allf"; \
 	      echo '};'; \
 	      echo 'unsigned int extra_regdb_certs_len = sizeof(extra_regdb_certs);'; \
-	  ) >> $@)
+	  ) > $@)
+
+clean-files += shipped-certs.c extra-certs.c
diff --git a/net/wireless/certs/sforshee.hex b/net/wireless/certs/sforshee.hex
new file mode 100644
index 000000000000..14ea66643ffa
--- /dev/null
+++ b/net/wireless/certs/sforshee.hex
@@ -0,0 +1,86 @@
+/* Seth Forshee's regdb certificate */
+0x30, 0x82, 0x02, 0xa4, 0x30, 0x82, 0x01, 0x8c,
+0x02, 0x09, 0x00, 0xb2, 0x8d, 0xdf, 0x47, 0xae,
+0xf9, 0xce, 0xa7, 0x30, 0x0d, 0x06, 0x09, 0x2a,
+0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b,
+0x05, 0x00, 0x30, 0x13, 0x31, 0x11, 0x30, 0x0f,
+0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x08, 0x73,
+0x66, 0x6f, 0x72, 0x73, 0x68, 0x65, 0x65, 0x30,
+0x20, 0x17, 0x0d, 0x31, 0x37, 0x31, 0x30, 0x30,
+0x36, 0x31, 0x39, 0x34, 0x30, 0x33, 0x35, 0x5a,
+0x18, 0x0f, 0x32, 0x31, 0x31, 0x37, 0x30, 0x39,
+0x31, 0x32, 0x31, 0x39, 0x34, 0x30, 0x33, 0x35,
+0x5a, 0x30, 0x13, 0x31, 0x11, 0x30, 0x0f, 0x06,
+0x03, 0x55, 0x04, 0x03, 0x0c, 0x08, 0x73, 0x66,
+0x6f, 0x72, 0x73, 0x68, 0x65, 0x65, 0x30, 0x82,
+0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86,
+0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05,
+0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30, 0x82,
+0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xb5,
+0x40, 0xe3, 0x9c, 0x28, 0x84, 0x39, 0x03, 0xf2,
+0x39, 0xd7, 0x66, 0x2c, 0x41, 0x38, 0x15, 0xac,
+0x7e, 0xa5, 0x83, 0x71, 0x25, 0x7e, 0x90, 0x7c,
+0x68, 0xdd, 0x6f, 0x3f, 0xd9, 0xd7, 0x59, 0x38,
+0x9f, 0x7c, 0x6a, 0x52, 0xc2, 0x03, 0x2a, 0x2d,
+0x7e, 0x66, 0xf4, 0x1e, 0xb3, 0x12, 0x70, 0x20,
+0x5b, 0xd4, 0x97, 0x32, 0x3d, 0x71, 0x8b, 0x3b,
+0x1b, 0x08, 0x17, 0x14, 0x6b, 0x61, 0xc4, 0x57,
+0x8b, 0x96, 0x16, 0x1c, 0xfd, 0x24, 0xd5, 0x0b,
+0x09, 0xf9, 0x68, 0x11, 0x84, 0xfb, 0xca, 0x51,
+0x0c, 0xd1, 0x45, 0x19, 0xda, 0x10, 0x44, 0x8a,
+0xd9, 0xfe, 0x76, 0xa9, 0xfd, 0x60, 0x2d, 0x18,
+0x0b, 0x28, 0x95, 0xb2, 0x2d, 0xea, 0x88, 0x98,
+0xb8, 0xd1, 0x56, 0x21, 0xf0, 0x53, 0x1f, 0xf1,
+0x02, 0x6f, 0xe9, 0x46, 0x9b, 0x93, 0x5f, 0x28,
+0x90, 0x0f, 0xac, 0x36, 0xfa, 0x68, 0x23, 0x71,
+0x57, 0x56, 0xf6, 0xcc, 0xd3, 0xdf, 0x7d, 0x2a,
+0xd9, 0x1b, 0x73, 0x45, 0xeb, 0xba, 0x27, 0x85,
+0xef, 0x7a, 0x7f, 0xa5, 0xcb, 0x80, 0xc7, 0x30,
+0x36, 0xd2, 0x53, 0xee, 0xec, 0xac, 0x1e, 0xe7,
+0x31, 0xf1, 0x36, 0xa2, 0x9c, 0x63, 0xc6, 0x65,
+0x5b, 0x7f, 0x25, 0x75, 0x68, 0xa1, 0xea, 0xd3,
+0x7e, 0x00, 0x5c, 0x9a, 0x5e, 0xd8, 0x20, 0x18,
+0x32, 0x77, 0x07, 0x29, 0x12, 0x66, 0x1e, 0x36,
+0x73, 0xe7, 0x97, 0x04, 0x41, 0x37, 0xb1, 0xb1,
+0x72, 0x2b, 0xf4, 0xa1, 0x29, 0x20, 0x7c, 0x96,
+0x79, 0x0b, 0x2b, 0xd0, 0xd8, 0xde, 0xc8, 0x6c,
+0x3f, 0x93, 0xfb, 0xc5, 0xee, 0x78, 0x52, 0x11,
+0x15, 0x1b, 0x7a, 0xf6, 0xe2, 0x68, 0x99, 0xe7,
+0xfb, 0x46, 0x16, 0x84, 0xe3, 0xc7, 0xa1, 0xe6,
+0xe0, 0xd2, 0x46, 0xd5, 0xe1, 0xc4, 0x5f, 0xa0,
+0x66, 0xf4, 0xda, 0xc4, 0xff, 0x95, 0x1d, 0x02,
+0x03, 0x01, 0x00, 0x01, 0x30, 0x0d, 0x06, 0x09,
+0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
+0x0b, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00,
+0x87, 0x03, 0xda, 0xf2, 0x82, 0xc2, 0xdd, 0xaf,
+0x7c, 0x44, 0x2f, 0x86, 0xd3, 0x5f, 0x4c, 0x93,
+0x48, 0xb9, 0xfe, 0x07, 0x17, 0xbb, 0x21, 0xf7,
+0x25, 0x23, 0x4e, 0xaa, 0x22, 0x0c, 0x16, 0xb9,
+0x73, 0xae, 0x9d, 0x46, 0x7c, 0x75, 0xd9, 0xc3,
+0x49, 0x57, 0x47, 0xbf, 0x33, 0xb7, 0x97, 0xec,
+0xf5, 0x40, 0x75, 0xc0, 0x46, 0x22, 0xf0, 0xa0,
+0x5d, 0x9c, 0x79, 0x13, 0xa1, 0xff, 0xb8, 0xa3,
+0x2f, 0x7b, 0x8e, 0x06, 0x3f, 0xc8, 0xb6, 0xe4,
+0x6a, 0x28, 0xf2, 0x34, 0x5c, 0x23, 0x3f, 0x32,
+0xc0, 0xe6, 0xad, 0x0f, 0xac, 0xcf, 0x55, 0x74,
+0x47, 0x73, 0xd3, 0x01, 0x85, 0xb7, 0x0b, 0x22,
+0x56, 0x24, 0x7d, 0x9f, 0x09, 0xa9, 0x0e, 0x86,
+0x9e, 0x37, 0x5b, 0x9c, 0x6d, 0x02, 0xd9, 0x8c,
+0xc8, 0x50, 0x6a, 0xe2, 0x59, 0xf3, 0x16, 0x06,
+0xea, 0xb2, 0x42, 0xb5, 0x58, 0xfe, 0xba, 0xd1,
+0x81, 0x57, 0x1a, 0xef, 0xb2, 0x38, 0x88, 0x58,
+0xf6, 0xaa, 0xc4, 0x2e, 0x8b, 0x5a, 0x27, 0xe4,
+0xa5, 0xe8, 0xa4, 0xca, 0x67, 0x5c, 0xac, 0x72,
+0x67, 0xc3, 0x6f, 0x13, 0xc3, 0x2d, 0x35, 0x79,
+0xd7, 0x8a, 0xe7, 0xf5, 0xd4, 0x21, 0x30, 0x4a,
+0xd5, 0xf6, 0xa3, 0xd9, 0x79, 0x56, 0xf2, 0x0f,
+0x10, 0xf7, 0x7d, 0xd0, 0x51, 0x93, 0x2f, 0x47,
+0xf8, 0x7d, 0x4b, 0x0a, 0x84, 0x55, 0x12, 0x0a,
+0x7d, 0x4e, 0x3b, 0x1f, 0x2b, 0x2f, 0xfc, 0x28,
+0xb3, 0x69, 0x34, 0xe1, 0x80, 0x80, 0xbb, 0xe2,
+0xaf, 0xb9, 0xd6, 0x30, 0xf1, 0x1d, 0x54, 0x87,
+0x23, 0x99, 0x9f, 0x51, 0x03, 0x4c, 0x45, 0x7d,
+0x02, 0x65, 0x73, 0xab, 0xfd, 0xcf, 0x94, 0xcc,
+0x0d, 0x3a, 0x60, 0xfd, 0x3c, 0x14, 0x2f, 0x16,
+0x33, 0xa9, 0x21, 0x1f, 0xcb, 0x50, 0xb1, 0x8f,
+0x03, 0xee, 0xa0, 0x66, 0xa9, 0x16, 0x79, 0x14,
diff --git a/net/wireless/certs/sforshee.x509 b/net/wireless/certs/sforshee.x509
deleted file mode 100644
index c6f8f9d6b988..000000000000
--- a/net/wireless/certs/sforshee.x509
+++ /dev/null
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index b1ac23ca20c8..213d0c498c97 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2610,7 +2610,7 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flag
 	case NL80211_IFTYPE_AP:
 		if (wdev->ssid_len &&
 		    nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
-			goto nla_put_failure;
+			goto nla_put_failure_locked;
 		break;
 	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_P2P_CLIENT:
@@ -2623,7 +2623,7 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flag
 		if (!ssid_ie)
 			break;
 		if (nla_put(msg, NL80211_ATTR_SSID, ssid_ie[1], ssid_ie + 2))
-			goto nla_put_failure;
+			goto nla_put_failure_locked;
 		break;
 		}
 	default:
@@ -2635,6 +2635,8 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flag
 	genlmsg_end(msg, hdr);
 	return 0;
 
+ nla_put_failure_locked:
+	wdev_unlock(wdev);
  nla_put_failure:
 	genlmsg_cancel(msg, hdr);
 	return -EMSGSIZE;