Merge branch 'android-4.4-p' of https://android.googlesource.com/kernel/common into lineage-17.1-caf-msm8998

This brings LA.UM.8.4.r1-05400-8x98.0 up to date with
https://android.googlesource.com/kernel/common/ android-4.4-p at commit:
96b09cba55905 UPSTREAM: net: socket: set sock->sk to NULL after calling proto_ops::release()

Conflicts:
	drivers/scsi/ufs/ufshcd.c
	drivers/usb/gadget/composite.c
	drivers/usb/gadget/function/f_fs.c

Change-Id: I3e79c0d20e3eb3246a50c9a1e815cdf030a4232e

12 files changed, 75 insertions, 29 deletions

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index ec8020de60cf..a4ffb324ca6d 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -560,12 +560,15 @@ struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, __be32 prefix,
 	return NULL;
 }
 
-static int ip_mc_config(struct sock *sk, bool join, const struct in_ifaddr *ifa)
+static int ip_mc_autojoin_config(struct net *net, bool join,
+				 const struct in_ifaddr *ifa)
 {
+#if defined(CONFIG_IP_MULTICAST)
 	struct ip_mreqn mreq = {
 		.imr_multiaddr.s_addr = ifa->ifa_address,
 		.imr_ifindex = ifa->ifa_dev->dev->ifindex,
 	};
+	struct sock *sk = net->ipv4.mc_autojoin_sk;
 	int ret;
 
 	ASSERT_RTNL();
@@ -578,6 +581,9 @@ static int ip_mc_config(struct sock *sk, bool join, const struct in_ifaddr *ifa)
 	release_sock(sk);
 
 	return ret;
+#else
+	return -EOPNOTSUPP;
+#endif
 }
 
 static int inet_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh)
@@ -617,7 +623,7 @@ static int inet_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh)
 			continue;
 
 		if (ipv4_is_multicast(ifa->ifa_address))
-			ip_mc_config(net->ipv4.mc_autojoin_sk, false, ifa);
+			ip_mc_autojoin_config(net, false, ifa);
 		__inet_del_ifa(in_dev, ifap, 1, nlh, NETLINK_CB(skb).portid);
 		return 0;
 	}
@@ -873,8 +879,7 @@ static int inet_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh)
 		 */
 		set_ifa_lifetime(ifa, valid_lft, prefered_lft);
 		if (ifa->ifa_flags & IFA_F_MCAUTOJOIN) {
-			int ret = ip_mc_config(net->ipv4.mc_autojoin_sk,
-					       true, ifa);
+			int ret = ip_mc_autojoin_config(net, true, ifa);
 
 			if (ret < 0) {
 				inet_free_ifa(ifa);
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 3f48c7d6ca31..2fd6fce1851f 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -666,10 +666,8 @@ static int __init vti_init(void)
 
 	msg = "ipip tunnel";
 	err = xfrm4_tunnel_register(&ipip_handler, AF_INET);
-	if (err < 0) {
-		pr_info("%s: cant't register tunnel\n",__func__);
+	if (err < 0)
 		goto xfrm_tunnel_failed;
-	}
 
 	msg = "netlink interface";
 	err = rtnl_link_register(&vti_link_ops);
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 01f8d24f3af7..051ed5732a81 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -507,9 +507,11 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 		goto out;
 
 	/* hdrincl should be READ_ONCE(inet->hdrincl)
-	 * but READ_ONCE() doesn't work with bit fields
+	 * but READ_ONCE() doesn't work with bit fields.
+	 * Doing this indirectly yields the same result.
 	 */
 	hdrincl = inet->hdrincl;
+	hdrincl = READ_ONCE(hdrincl);
 	/*
 	 *	Check the flags.
 	 */
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index e28e535db44f..671e221070a5 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -131,8 +131,6 @@ static int ip_rt_min_advmss __read_mostly	= 256;
 
 static int ip_rt_gc_timeout __read_mostly	= RT_GC_TIMEOUT;
 
-static int ip_min_valid_pmtu __read_mostly	= IPV4_MIN_MTU;
-
 /*
  *	Interface to generic destination cache.
  */
@@ -2722,6 +2720,7 @@ void ip_rt_multicast_event(struct in_device *in_dev)
 static int ip_rt_gc_interval __read_mostly  = 60 * HZ;
 static int ip_rt_gc_min_interval __read_mostly	= HZ / 2;
 static int ip_rt_gc_elasticity __read_mostly	= 8;
+static int ip_min_valid_pmtu __read_mostly	= IPV4_MIN_MTU;
 
 static int ipv4_sysctl_rtcache_flush(struct ctl_table *__ctl, int write,
 					void __user *buffer,
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index 7ee6518afa86..73705a2368d9 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -75,9 +75,7 @@ int xfrm4_output_finish(struct sock *sk, struct sk_buff *skb)
 {
 	memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
 
-#ifdef CONFIG_NETFILTER
 	IPCB(skb)->flags |= IPSKB_XFRM_TRANSFORMED;
-#endif
 
 	return xfrm_output(sk, skb);
 }
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index bd2a6ec7572a..e5513b7b5abf 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -185,15 +185,14 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 					retv = -EBUSY;
 					break;
 				}
-			} else if (sk->sk_protocol == IPPROTO_TCP) {
-				if (sk->sk_prot != &tcpv6_prot) {
-					retv = -EBUSY;
-					break;
-				}
-				break;
-			} else {
+			}
+			if (sk->sk_protocol == IPPROTO_TCP &&
+			    sk->sk_prot != &tcpv6_prot) {
+				retv = -EBUSY;
 				break;
 			}
+			if (sk->sk_protocol != IPPROTO_TCP)
+				break;
 			if (sk->sk_state != TCP_ESTABLISHED) {
 				retv = -ENOTCONN;
 				break;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 30db0167bd19..1a940af30300 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -757,6 +757,7 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 	int hlimit = -1;
 	int tclass = -1;
 	int dontfrag = -1;
+	int hdrincl;
 	u16 proto;
 	int err;
 
@@ -770,6 +771,13 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 	if (msg->msg_flags & MSG_OOB)
 		return -EOPNOTSUPP;
 
+	/* hdrincl should be READ_ONCE(inet->hdrincl)
+	 * but READ_ONCE() doesn't work with bit fields.
+	 * Doing this indirectly yields the same result.
+	 */
+	hdrincl = inet->hdrincl;
+	hdrincl = READ_ONCE(hdrincl);
+
 	/*
 	 *	Get and verify the address.
 	 */
@@ -879,7 +887,7 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 		fl6.flowi6_oif = np->ucast_oif;
 	security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
 
-	if (inet->hdrincl)
+	if (hdrincl)
 		fl6.flowi6_flags |= FLOWI_FLAG_KNOWN_NH;
 
 	dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
@@ -900,7 +908,7 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 		goto do_confirm;
 
 back_from_confirm:
-	if (inet->hdrincl)
+	if (hdrincl)
 		err = rawv6_send_hdrinc(sk, msg, len, &fl6, &dst, msg->msg_flags);
 	else {
 		lock_sock(sk);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 2ffc5862eeb5..0b74b01db2f6 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1763,6 +1763,37 @@ static int ip6_convert_metrics(struct mx6_config *mxc,
 	return -EINVAL;
 }
 
+static struct rt6_info *ip6_nh_lookup_table(struct net *net,
+					    struct fib6_config *cfg,
+					    const struct in6_addr *gw_addr)
+{
+	struct flowi6 fl6 = {
+		.flowi6_oif = cfg->fc_ifindex,
+		.daddr = *gw_addr,
+		.saddr = cfg->fc_prefsrc,
+	};
+	struct fib6_table *table;
+	struct rt6_info *rt;
+	int flags = 0;
+
+	table = fib6_get_table(net, cfg->fc_table);
+	if (!table)
+		return NULL;
+
+	if (!ipv6_addr_any(&cfg->fc_prefsrc))
+		flags |= RT6_LOOKUP_F_HAS_SADDR;
+
+	rt = ip6_pol_route(net, table, cfg->fc_ifindex, &fl6, flags);
+
+	/* if table lookup failed, fall back to full lookup */
+	if (rt == net->ipv6.ip6_null_entry) {
+		ip6_rt_put(rt);
+		rt = NULL;
+	}
+
+	return rt;
+}
+
 static struct rt6_info *ip6_route_info_create(struct fib6_config *cfg)
 {
 	struct net *net = cfg->fc_nlinfo.nl_net;
@@ -1938,7 +1969,7 @@ static struct rt6_info *ip6_route_info_create(struct fib6_config *cfg)
 		rt->rt6i_gateway = *gw_addr;
 
 		if (gwa_type != (IPV6_ADDR_LINKLOCAL|IPV6_ADDR_UNICAST)) {
-			struct rt6_info *grt;
+			struct rt6_info *grt = NULL;
 
 			/* IPv6 strictly inhibits using not link-local
 			   addresses as nexthop address.
@@ -1950,7 +1981,12 @@ static struct rt6_info *ip6_route_info_create(struct fib6_config *cfg)
 			if (!(gwa_type & IPV6_ADDR_UNICAST))
 				goto out;
 
-			grt = rt6_lookup(net, gw_addr, NULL, cfg->fc_ifindex, 1);
+			if (cfg->fc_table)
+				grt = ip6_nh_lookup_table(net, cfg, gw_addr);
+
+			if (!grt)
+				grt = rt6_lookup(net, gw_addr, NULL,
+						 cfg->fc_ifindex, 1);
 
 			err = -EHOSTUNREACH;
 			if (!grt)
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 64862c5084ee..b2dc9a820c6a 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -125,9 +125,7 @@ int xfrm6_output_finish(struct sock *sk, struct sk_buff *skb)
 {
 	memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
 
-#ifdef CONFIG_NETFILTER
 	IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
-#endif
 
 	return xfrm_output(sk, skb);
 }
diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c
index d72a4f1558f2..ef6a3d586591 100644
--- a/net/netrom/nr_route.c
+++ b/net/netrom/nr_route.c
@@ -199,6 +199,7 @@ static int __must_check nr_add_node(ax25_address *nr, const char *mnemonic,
 		/* refcount initialized at 1 */
 		spin_unlock_bh(&nr_node_list_lock);
 
+		nr_neigh_put(nr_neigh);
 		return 0;
 	}
 	nr_node_lock(nr_node);
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 2b6c88b9a038..5803d0807e9a 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -185,13 +185,13 @@ static void sctp_for_each_tx_datachunk(struct sctp_association *asoc,
 		list_for_each_entry(chunk, &t->transmitted, transmitted_list)
 			cb(chunk);
 
-	list_for_each_entry(chunk, &q->retransmit, list)
+	list_for_each_entry(chunk, &q->retransmit, transmitted_list)
 		cb(chunk);
 
-	list_for_each_entry(chunk, &q->sacked, list)
+	list_for_each_entry(chunk, &q->sacked, transmitted_list)
 		cb(chunk);
 
-	list_for_each_entry(chunk, &q->abandoned, list)
+	list_for_each_entry(chunk, &q->abandoned, transmitted_list)
 		cb(chunk);
 
 	list_for_each_entry(chunk, &q->out_chunk_list, list)
diff --git a/net/x25/x25_dev.c b/net/x25/x25_dev.c
index 39231237e1c3..30f71620d4e3 100644
--- a/net/x25/x25_dev.c
+++ b/net/x25/x25_dev.c
@@ -120,8 +120,10 @@ int x25_lapb_receive_frame(struct sk_buff *skb, struct net_device *dev,
 		goto drop;
 	}
 
-	if (!pskb_may_pull(skb, 1))
+	if (!pskb_may_pull(skb, 1)) {
+		x25_neigh_put(nb);
 		return 0;
+	}
 
 	switch (skb->data[0]) {