Merge remote-tracking branch 'kernelorg/linux-3.0.y' into 3_0_64

Conflicts:
	arch/arm/Kconfig
	arch/arm/include/asm/hwcap.h
	arch/arm/kernel/smp.c
	arch/arm/plat-samsung/adc.c
	drivers/gpu/drm/i915/i915_reg.h
	drivers/gpu/drm/i915/intel_drv.h
	drivers/mmc/core/sd.c
	drivers/net/tun.c
	drivers/net/usb/usbnet.c
	drivers/regulator/max8997.c
	drivers/usb/core/hub.c
	drivers/usb/host/xhci.h
	drivers/usb/serial/qcserial.c
	fs/jbd2/transaction.c
	include/linux/migrate.h
	kernel/sys.c
	kernel/time/timekeeping.c
	lib/genalloc.c
	mm/memory-failure.c
	mm/memory_hotplug.c
	mm/mempolicy.c
	mm/page_alloc.c
	mm/vmalloc.c
	mm/vmscan.c
	mm/vmstat.c
	scripts/Kbuild.include

Change-Id: I91e2d85c07320c7ccfc04cf98a448e89bed6ade6

12 files changed, 147 insertions, 87 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index b0da233..d717c7b 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -492,8 +492,7 @@ static void addrconf_forward_change(struct net *net, __s32 newf)
 	struct net_device *dev;
 	struct inet6_dev *idev;
 
-	rcu_read_lock();
-	for_each_netdev_rcu(net, dev) {
+	for_each_netdev(net, dev) {
 		idev = __in6_dev_get(dev);
 		if (idev) {
 			int changed = (!idev->cnf.forwarding) ^ (!newf);
@@ -502,7 +501,6 @@ static void addrconf_forward_change(struct net *net, __s32 newf)
 				dev_forward_change(idev);
 		}
 	}
-	rcu_read_unlock();
 }
 
 static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
@@ -4734,16 +4732,20 @@ int __init addrconf_init(void)
 	if (err < 0)
 		goto errout_af;
 
-	err = __rtnl_register(PF_INET6, RTM_GETLINK, NULL, inet6_dump_ifinfo);
+	err = __rtnl_register(PF_INET6, RTM_GETLINK, NULL, inet6_dump_ifinfo,
+			      NULL);
 	if (err < 0)
 		goto errout;
 
 	/* Only the first call to __rtnl_register can fail */
-	__rtnl_register(PF_INET6, RTM_NEWADDR, inet6_rtm_newaddr, NULL);
-	__rtnl_register(PF_INET6, RTM_DELADDR, inet6_rtm_deladdr, NULL);
-	__rtnl_register(PF_INET6, RTM_GETADDR, inet6_rtm_getaddr, inet6_dump_ifaddr);
-	__rtnl_register(PF_INET6, RTM_GETMULTICAST, NULL, inet6_dump_ifmcaddr);
-	__rtnl_register(PF_INET6, RTM_GETANYCAST, NULL, inet6_dump_ifacaddr);
+	__rtnl_register(PF_INET6, RTM_NEWADDR, inet6_rtm_newaddr, NULL, NULL);
+	__rtnl_register(PF_INET6, RTM_DELADDR, inet6_rtm_deladdr, NULL, NULL);
+	__rtnl_register(PF_INET6, RTM_GETADDR, inet6_rtm_getaddr,
+			inet6_dump_ifaddr, NULL);
+	__rtnl_register(PF_INET6, RTM_GETMULTICAST, NULL,
+			inet6_dump_ifmcaddr, NULL);
+	__rtnl_register(PF_INET6, RTM_GETANYCAST, NULL,
+			inet6_dump_ifacaddr, NULL);
 
 	ipv6_addr_label_rtnl_register();
 
diff --git a/net/ipv6/addrlabel.c b/net/ipv6/addrlabel.c
index c8993e5..2d8ddba 100644
--- a/net/ipv6/addrlabel.c
+++ b/net/ipv6/addrlabel.c
@@ -592,8 +592,11 @@ out:
 
 void __init ipv6_addr_label_rtnl_register(void)
 {
-	__rtnl_register(PF_INET6, RTM_NEWADDRLABEL, ip6addrlbl_newdel, NULL);
-	__rtnl_register(PF_INET6, RTM_DELADDRLABEL, ip6addrlbl_newdel, NULL);
-	__rtnl_register(PF_INET6, RTM_GETADDRLABEL, ip6addrlbl_get, ip6addrlbl_dump);
+	__rtnl_register(PF_INET6, RTM_NEWADDRLABEL, ip6addrlbl_newdel,
+			NULL, NULL);
+	__rtnl_register(PF_INET6, RTM_DELADDRLABEL, ip6addrlbl_newdel,
+			NULL, NULL);
+	__rtnl_register(PF_INET6, RTM_GETADDRLABEL, ip6addrlbl_get,
+			ip6addrlbl_dump, NULL);
 }
 
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 1ac7938..65dd543 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -411,19 +411,15 @@ static u32 esp6_get_mtu(struct xfrm_state *x, int mtu)
 	struct esp_data *esp = x->data;
 	u32 blksize = ALIGN(crypto_aead_blocksize(esp->aead), 4);
 	u32 align = max_t(u32, blksize, esp->padlen);
-	u32 rem;
+	unsigned int net_adj;
 
-	mtu -= x->props.header_len + crypto_aead_authsize(esp->aead);
-	rem = mtu & (align - 1);
-	mtu &= ~(align - 1);
-
-	if (x->props.mode != XFRM_MODE_TUNNEL) {
-		u32 padsize = ((blksize - 1) & 7) + 1;
-		mtu -= blksize - padsize;
-		mtu += min_t(u32, blksize - padsize, rem);
-	}
+	if (x->props.mode != XFRM_MODE_TUNNEL)
+		net_adj = sizeof(struct ipv6hdr);
+	else
+		net_adj = 0;
 
-	return mtu - 2;
+	return ((mtu - x->props.header_len - crypto_aead_authsize(esp->aead) -
+		 net_adj) & ~(align - 1)) + (net_adj - 2);
 }
 
 static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 0f9b37a..320d91d 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1586,7 +1586,8 @@ int __init fib6_init(void)
 	if (ret)
 		goto out_kmem_cache_create;
 
-	ret = __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib);
+	ret = __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib,
+			      NULL);
 	if (ret)
 		goto out_unregister_subsys;
 out:
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 9cbf176..ae9f6d4 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1194,6 +1194,29 @@ static inline struct ipv6_rt_hdr *ip6_rthdr_dup(struct ipv6_rt_hdr *src,
 	return src ? kmemdup(src, (src->hdrlen + 1) * 8, gfp) : NULL;
 }
 
+static void ip6_append_data_mtu(int *mtu,
+				int *maxfraglen,
+				unsigned int fragheaderlen,
+				struct sk_buff *skb,
+				struct rt6_info *rt)
+{
+	if (!(rt->dst.flags & DST_XFRM_TUNNEL)) {
+		if (skb == NULL) {
+			/* first fragment, reserve header_len */
+			*mtu = *mtu - rt->dst.header_len;
+
+		} else {
+			/*
+			 * this fragment is not first, the headers
+			 * space is regarded as data space.
+			 */
+			*mtu = dst_mtu(rt->dst.path);
+		}
+		*maxfraglen = ((*mtu - fragheaderlen) & ~7)
+			      + fragheaderlen - sizeof(struct frag_hdr);
+	}
+}
+
 int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
 	int offset, int len, int odd, struct sk_buff *skb),
 	void *from, int length, int transhdrlen,
@@ -1203,7 +1226,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
 	struct inet_sock *inet = inet_sk(sk);
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct inet_cork *cork;
-	struct sk_buff *skb;
+	struct sk_buff *skb, *skb_prev = NULL;
 	unsigned int maxfraglen, fragheaderlen;
 	int exthdrlen;
 	int hh_len;
@@ -1260,8 +1283,12 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
 		inet->cork.fl.u.ip6 = *fl6;
 		np->cork.hop_limit = hlimit;
 		np->cork.tclass = tclass;
-		mtu = np->pmtudisc == IPV6_PMTUDISC_PROBE ?
-		      rt->dst.dev->mtu : dst_mtu(rt->dst.path);
+		if (rt->dst.flags & DST_XFRM_TUNNEL)
+			mtu = np->pmtudisc == IPV6_PMTUDISC_PROBE ?
+			      rt->dst.dev->mtu : dst_mtu(&rt->dst);
+		else
+			mtu = np->pmtudisc == IPV6_PMTUDISC_PROBE ?
+			      rt->dst.dev->mtu : dst_mtu(rt->dst.path);
 		if (np->frag_size < mtu) {
 			if (np->frag_size)
 				mtu = np->frag_size;
@@ -1356,38 +1383,43 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
 			unsigned int fraglen;
 			unsigned int fraggap;
 			unsigned int alloclen;
-			struct sk_buff *skb_prev;
 alloc_new_skb:
-			skb_prev = skb;
-
 			/* There's no room in the current skb */
-			if (skb_prev)
-				fraggap = skb_prev->len - maxfraglen;
+			if (skb)
+				fraggap = skb->len - maxfraglen;
 			else
 				fraggap = 0;
+			/* update mtu and maxfraglen if necessary */
+			if (skb == NULL || skb_prev == NULL)
+				ip6_append_data_mtu(&mtu, &maxfraglen,
+						    fragheaderlen, skb, rt);
+
+			skb_prev = skb;
 
 			/*
 			 * If remaining data exceeds the mtu,
 			 * we know we need more fragment(s).
 			 */
 			datalen = length + fraggap;
-			if (datalen > (cork->length <= mtu && !(cork->flags & IPCORK_ALLFRAG) ? mtu : maxfraglen) - fragheaderlen)
-				datalen = maxfraglen - fragheaderlen;
 
-			fraglen = datalen + fragheaderlen;
+			if (datalen > (cork->length <= mtu && !(cork->flags & IPCORK_ALLFRAG) ? mtu : maxfraglen) - fragheaderlen)
+				datalen = maxfraglen - fragheaderlen - rt->dst.trailer_len;
 			if ((flags & MSG_MORE) &&
 			    !(rt->dst.dev->features&NETIF_F_SG))
 				alloclen = mtu;
 			else
 				alloclen = datalen + fragheaderlen;
 
-			/*
-			 * The last fragment gets additional space at tail.
-			 * Note: we overallocate on fragments with MSG_MODE
-			 * because we have no idea if we're the last one.
-			 */
-			if (datalen == length + fraggap)
-				alloclen += rt->dst.trailer_len;
+			if (datalen != length + fraggap) {
+				/*
+				 * this is not the last fragment, the trailer
+				 * space is regarded as data space.
+				 */
+				datalen += rt->dst.trailer_len;
+			}
+
+			alloclen += rt->dst.trailer_len;
+			fraglen = datalen + fragheaderlen;
 
 			/*
 			 * We just reserve space for fragment header.
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 86e3cc1..def0538 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -1356,7 +1356,8 @@ int __init ip6_mr_init(void)
 		goto add_proto_fail;
 	}
 #endif
-	rtnl_register(RTNL_FAMILY_IP6MR, RTM_GETROUTE, NULL, ip6mr_rtm_dumproute);
+	rtnl_register(RTNL_FAMILY_IP6MR, RTM_GETROUTE, NULL,
+		      ip6mr_rtm_dumproute, NULL);
 	return 0;
 #ifdef CONFIG_IPV6_PIMSM_V2
 add_proto_fail:
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 147ede38..3223eb9 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -798,6 +798,7 @@ pref_skip_coa:
 		if (val < 0 || val > 255)
 			goto e_inval;
 		np->min_hopcount = val;
+		retv = 0;
 		break;
 	case IPV6_DONTFRAG:
 		np->dontfrag = valbool;
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index 43242e6..42853c4 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -84,28 +84,30 @@ static int mip6_mh_len(int type)
 
 static int mip6_mh_filter(struct sock *sk, struct sk_buff *skb)
 {
-	struct ip6_mh *mh;
+	struct ip6_mh _hdr;
+	const struct ip6_mh *mh;
 
-	if (!pskb_may_pull(skb, (skb_transport_offset(skb)) + 8) ||
-	    !pskb_may_pull(skb, (skb_transport_offset(skb) +
-				 ((skb_transport_header(skb)[1] + 1) << 3))))
+	mh = skb_header_pointer(skb, skb_transport_offset(skb),
+				sizeof(_hdr), &_hdr);
+	if (!mh)
 		return -1;
 
-	mh = (struct ip6_mh *)skb_transport_header(skb);
+	if (((mh->ip6mh_hdrlen + 1) << 3) > skb->len)
+		return -1;
 
 	if (mh->ip6mh_hdrlen < mip6_mh_len(mh->ip6mh_type)) {
 		LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH message too short: %d vs >=%d\n",
 			       mh->ip6mh_hdrlen, mip6_mh_len(mh->ip6mh_type));
-		mip6_param_prob(skb, 0, ((&mh->ip6mh_hdrlen) -
-					 skb_network_header(skb)));
+		mip6_param_prob(skb, 0, offsetof(struct ip6_mh, ip6mh_hdrlen) +
+				skb_network_header_len(skb));
 		return -1;
 	}
 
 	if (mh->ip6mh_proto != IPPROTO_NONE) {
 		LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH invalid payload proto = %d\n",
 			       mh->ip6mh_proto);
-		mip6_param_prob(skb, 0, ((&mh->ip6mh_proto) -
-					 skb_network_header(skb)));
+		mip6_param_prob(skb, 0, offsetof(struct ip6_mh, ip6mh_proto) +
+				skb_network_header_len(skb));
 		return -1;
 	}
 
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 10a8d41..31ba78c 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -615,7 +615,7 @@ static void ndisc_send_unsol_na(struct net_device *dev)
 {
 	struct inet6_dev *idev;
 	struct inet6_ifaddr *ifa;
-	struct in6_addr mcaddr;
+	struct in6_addr mcaddr = IN6ADDR_LINKLOCAL_ALLNODES_INIT;
 
 	idev = in6_dev_get(dev);
 	if (!idev)
@@ -623,7 +623,6 @@ static void ndisc_send_unsol_na(struct net_device *dev)
 
 	read_lock_bh(&idev->lock);
 	list_for_each_entry(ifa, &idev->addr_list, if_list) {
-		addrconf_addr_solict_mult(&ifa->addr, &mcaddr);
 		ndisc_send_na(dev, NULL, &mcaddr, &ifa->addr,
 			      /*router=*/ !!idev->cnf.forwarding,
 			      /*solicited=*/ false, /*override=*/ true,
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index cc7313b..fb812a6 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -106,21 +106,20 @@ found:
  *	0 - deliver
  *	1 - block
  */
-static __inline__ int icmpv6_filter(struct sock *sk, struct sk_buff *skb)
+static int icmpv6_filter(const struct sock *sk, const struct sk_buff *skb)
 {
-	struct icmp6hdr *icmph;
-	struct raw6_sock *rp = raw6_sk(sk);
-
-	if (pskb_may_pull(skb, sizeof(struct icmp6hdr))) {
-		__u32 *data = &rp->filter.data[0];
-		int bit_nr;
+	struct icmp6hdr *_hdr;
+	const struct icmp6hdr *hdr;
 
-		icmph = (struct icmp6hdr *) skb->data;
-		bit_nr = icmph->icmp6_type;
+	hdr = skb_header_pointer(skb, skb_transport_offset(skb),
+				 sizeof(_hdr), &_hdr);
+	if (hdr) {
+		const __u32 *data = &raw6_sk(sk)->filter.data[0];
+		unsigned int type = hdr->icmp6_type;
 
-		return (data[bit_nr >> 5] & (1 << (bit_nr & 31))) != 0;
+		return (data[type >> 5] & (1U << (type & 31))) != 0;
 	}
-	return 0;
+	return 1;
 }
 
 #if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 7ef5d08..594da96 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -171,7 +171,7 @@ static struct dst_ops ip6_dst_blackhole_ops = {
 };
 
 static const u32 ip6_template_metrics[RTAX_MAX] = {
-	[RTAX_HOPLIMIT - 1] = 255,
+	[RTAX_HOPLIMIT - 1] = 0,
 };
 
 static struct rt6_info ip6_null_entry_template = {
@@ -804,7 +804,8 @@ restart:
 	dst_hold(&rt->dst);
 	read_unlock_bh(&table->tb6_lock);
 
-	if (!dst_get_neighbour_raw(&rt->dst) && !(rt->rt6i_flags & RTF_NONEXTHOP))
+	if (!dst_get_neighbour_raw(&rt->dst) &&
+	    !(rt->rt6i_flags & (RTF_NONEXTHOP | RTF_LOCAL)))
 		nrt = rt6_alloc_cow(rt, &fl6->daddr, &fl6->saddr);
 	else if (!(rt->dst.flags & DST_HOST))
 		nrt = rt6_alloc_clone(rt, &fl6->daddr);
@@ -1070,7 +1071,7 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
 	rt->rt6i_idev     = idev;
 	dst_set_neighbour(&rt->dst, neigh);
 	atomic_set(&rt->dst.__refcnt, 1);
-	dst_metric_set(&rt->dst, RTAX_HOPLIMIT, 255);
+	dst_metric_set(&rt->dst, RTAX_HOPLIMIT, 0);
 	rt->dst.output  = ip6_output;
 
 	spin_lock_bh(&icmp6_dst_lock);
@@ -1401,17 +1402,18 @@ static int __ip6_del_rt(struct rt6_info *rt, struct nl_info *info)
 	struct fib6_table *table;
 	struct net *net = dev_net(rt->rt6i_dev);
 
-	if (rt == net->ipv6.ip6_null_entry)
-		return -ENOENT;
+	if (rt == net->ipv6.ip6_null_entry) {
+		err = -ENOENT;
+		goto out;
+	}
 
 	table = rt->rt6i_table;
 	write_lock_bh(&table->tb6_lock);
-
 	err = fib6_del(rt, info);
-	dst_release(&rt->dst);
-
 	write_unlock_bh(&table->tb6_lock);
 
+out:
+	dst_release(&rt->dst);
 	return err;
 }
 
@@ -2848,10 +2850,6 @@ static int __net_init ip6_route_net_init(struct net *net)
 	net->ipv6.sysctl.ip6_rt_mtu_expires = 10*60*HZ;
 	net->ipv6.sysctl.ip6_rt_min_advmss = IPV6_MIN_MTU - 20 - 40;
 
-#ifdef CONFIG_PROC_FS
-	proc_net_fops_create(net, "ipv6_route", 0, &ipv6_route_proc_fops);
-	proc_net_fops_create(net, "rt6_stats", S_IRUGO, &rt6_stats_seq_fops);
-#endif
 	net->ipv6.ip6_rt_gc_expire = 30*HZ;
 
 	ret = 0;
@@ -2872,10 +2870,6 @@ out_ip6_dst_ops:
 
 static void __net_exit ip6_route_net_exit(struct net *net)
 {
-#ifdef CONFIG_PROC_FS
-	proc_net_remove(net, "ipv6_route");
-	proc_net_remove(net, "rt6_stats");
-#endif
 	kfree(net->ipv6.ip6_null_entry);
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
 	kfree(net->ipv6.ip6_prohibit_entry);
@@ -2884,11 +2878,33 @@ static void __net_exit ip6_route_net_exit(struct net *net)
 	dst_entries_destroy(&net->ipv6.ip6_dst_ops);
 }
 
+static int __net_init ip6_route_net_init_late(struct net *net)
+{
+#ifdef CONFIG_PROC_FS
+	proc_net_fops_create(net, "ipv6_route", 0, &ipv6_route_proc_fops);
+	proc_net_fops_create(net, "rt6_stats", S_IRUGO, &rt6_stats_seq_fops);
+#endif
+	return 0;
+}
+
+static void __net_exit ip6_route_net_exit_late(struct net *net)
+{
+#ifdef CONFIG_PROC_FS
+	proc_net_remove(net, "ipv6_route");
+	proc_net_remove(net, "rt6_stats");
+#endif
+}
+
 static struct pernet_operations ip6_route_net_ops = {
 	.init = ip6_route_net_init,
 	.exit = ip6_route_net_exit,
 };
 
+static struct pernet_operations ip6_route_net_late_ops = {
+	.init = ip6_route_net_init_late,
+	.exit = ip6_route_net_exit_late,
+};
+
 static struct notifier_block ip6_route_dev_notifier = {
 	.notifier_call = ip6_route_dev_notify,
 	.priority = 0,
@@ -2938,19 +2954,25 @@ int __init ip6_route_init(void)
 	if (ret)
 		goto xfrm6_init;
 
-	ret = -ENOBUFS;
-	if (__rtnl_register(PF_INET6, RTM_NEWROUTE, inet6_rtm_newroute, NULL) ||
-	    __rtnl_register(PF_INET6, RTM_DELROUTE, inet6_rtm_delroute, NULL) ||
-	    __rtnl_register(PF_INET6, RTM_GETROUTE, inet6_rtm_getroute, NULL))
+	ret = register_pernet_subsys(&ip6_route_net_late_ops);
+	if (ret)
 		goto fib6_rules_init;
 
+	ret = -ENOBUFS;
+	if (__rtnl_register(PF_INET6, RTM_NEWROUTE, inet6_rtm_newroute, NULL, NULL) ||
+	    __rtnl_register(PF_INET6, RTM_DELROUTE, inet6_rtm_delroute, NULL, NULL) ||
+	    __rtnl_register(PF_INET6, RTM_GETROUTE, inet6_rtm_getroute, NULL, NULL))
+		goto out_register_late_subsys;
+
 	ret = register_netdevice_notifier(&ip6_route_dev_notifier);
 	if (ret)
-		goto fib6_rules_init;
+		goto out_register_late_subsys;
 
 out:
 	return ret;
 
+out_register_late_subsys:
+	unregister_pernet_subsys(&ip6_route_net_late_ops);
 fib6_rules_init:
 	fib6_rules_cleanup();
 xfrm6_init:
@@ -2969,6 +2991,7 @@ out_kmem_cache:
 void ip6_route_cleanup(void)
 {
 	unregister_netdevice_notifier(&ip6_route_dev_notifier);
+	unregister_pernet_subsys(&ip6_route_net_late_ops);
 	fib6_rules_cleanup();
 	xfrm6_fini();
 	fib6_gc_cleanup();
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 848f963..a6d5850 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1060,7 +1060,8 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
 	__tcp_v6_send_check(buff, &fl6.saddr, &fl6.daddr);
 
 	fl6.flowi6_proto = IPPROTO_TCP;
-	fl6.flowi6_oif = inet6_iif(skb);
+	if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)
+		fl6.flowi6_oif = inet6_iif(skb);
 	fl6.fl6_dport = t1->dest;
 	fl6.fl6_sport = t1->source;
 	security_skb_classify_flow(skb, flowi6_to_flowi(&fl6));