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

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1287 commits)
  icmp: Fix regression in nexthop resolution during replies.
  net: Fix ppc64 BPF JIT dependencies.
  acenic: include NET_SKB_PAD headroom to incoming skbs
  ixgbe: convert to ndo_fix_features
  ixgbe: only enable WoL for magic packet by default
  ixgbe: remove ifdef check for non-existent define
  ixgbe: Pass staterr instead of re-reading status and error bits from descriptor
  ixgbe: Move interrupt related values out of ring and into q_vector
  ixgbe: add structure for containing RX/TX rings to q_vector
  ixgbe: inline the ixgbe_maybe_stop_tx function
  ixgbe: Update ATR to use recorded TX queues instead of CPU for routing
  igb: Fix for DH89xxCC near end loopback test
  e1000: always call e1000_check_for_link() on e1000_ce4100 MACs.
  netxen: add fw version compatibility check
  be2net: request native mode each time the card is reset
  ipv4: Constrain UFO fragment sizes to multiples of 8 bytes
  virtio_net: Fix panic in virtnet_remove
  ipv6: make fragment identifications less predictable
  ipv6: unshare inetpeers
  can: make function can_get_bittiming static
  ...

12 files changed, 236 insertions, 152 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 498b927f68be..a06c53c14d84 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -656,7 +656,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
 	 * layer address of our nexhop router
 	 */
 
-	if (rt->rt6i_nexthop == NULL)
+	if (dst_get_neighbour(&rt->dst) == NULL)
 		ifa->flags &= ~IFA_F_OPTIMISTIC;
 
 	ifa->idev = idev;
@@ -1470,6 +1470,8 @@ void addrconf_leave_solict(struct inet6_dev *idev, const struct in6_addr *addr)
 static void addrconf_join_anycast(struct inet6_ifaddr *ifp)
 {
 	struct in6_addr addr;
+	if (ifp->prefix_len == 127) /* RFC 6164 */
+		return;
 	ipv6_addr_prefix(&addr, &ifp->addr, ifp->prefix_len);
 	if (ipv6_addr_any(&addr))
 		return;
@@ -1559,6 +1561,11 @@ static int addrconf_ifid_sit(u8 *eui, struct net_device *dev)
 	return -1;
 }
 
+static int addrconf_ifid_gre(u8 *eui, struct net_device *dev)
+{
+	return __ipv6_isatap_ifid(eui, *(__be32 *)dev->dev_addr);
+}
+
 static int ipv6_generate_eui64(u8 *eui, struct net_device *dev)
 {
 	switch (dev->type) {
@@ -1572,6 +1579,8 @@ static int ipv6_generate_eui64(u8 *eui, struct net_device *dev)
 		return addrconf_ifid_infiniband(eui, dev);
 	case ARPHRD_SIT:
 		return addrconf_ifid_sit(eui, dev);
+	case ARPHRD_IPGRE:
+		return addrconf_ifid_gre(eui, dev);
 	}
 	return -1;
 }
@@ -2423,6 +2432,29 @@ static void addrconf_sit_config(struct net_device *dev)
 }
 #endif
 
+#if defined(CONFIG_NET_IPGRE) || defined(CONFIG_NET_IPGRE_MODULE)
+static void addrconf_gre_config(struct net_device *dev)
+{
+	struct inet6_dev *idev;
+	struct in6_addr addr;
+
+	pr_info("ipv6: addrconf_gre_config(%s)\n", dev->name);
+
+	ASSERT_RTNL();
+
+	if ((idev = ipv6_find_idev(dev)) == NULL) {
+		printk(KERN_DEBUG "init gre: add_dev failed\n");
+		return;
+	}
+
+	ipv6_addr_set(&addr,  htonl(0xFE800000), 0, 0, 0);
+	addrconf_prefix_route(&addr, 64, dev, 0, 0);
+
+	if (!ipv6_generate_eui64(addr.s6_addr + 8, dev))
+		addrconf_add_linklocal(idev, &addr);
+}
+#endif
+
 static inline int
 ipv6_inherit_linklocal(struct inet6_dev *idev, struct net_device *link_dev)
 {
@@ -2539,6 +2571,11 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
 			addrconf_sit_config(dev);
 			break;
 #endif
+#if defined(CONFIG_NET_IPGRE) || defined(CONFIG_NET_IPGRE_MODULE)
+		case ARPHRD_IPGRE:
+			addrconf_gre_config(dev);
+			break;
+#endif
 		case ARPHRD_TUNNEL6:
 			addrconf_ip6_tnl_config(dev);
 			break;
@@ -4692,16 +4729,20 @@ 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 c8993e5a337c..2d8ddba9ee58 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/ip6_fib.c b/net/ipv6/ip6_fib.c
index 4076a0b14b20..54a4678955bf 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1455,7 +1455,7 @@ static int fib6_age(struct rt6_info *rt, void *arg)
 			RT6_TRACE("aging clone %p\n", rt);
 			return -1;
 		} else if ((rt->rt6i_flags & RTF_GATEWAY) &&
-			   (!(rt->rt6i_nexthop->flags & NTF_ROUTER))) {
+			   (!(dst_get_neighbour(&rt->dst)->flags & NTF_ROUTER))) {
 			RT6_TRACE("purging route %p via non-router but gateway\n",
 				  rt);
 			return -1;
@@ -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 9d4b165837d6..32e5339db0c8 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -100,6 +100,7 @@ static int ip6_finish_output2(struct sk_buff *skb)
 {
 	struct dst_entry *dst = skb_dst(skb);
 	struct net_device *dev = dst->dev;
+	struct neighbour *neigh;
 
 	skb->protocol = htons(ETH_P_IPV6);
 	skb->dev = dev;
@@ -134,10 +135,9 @@ static int ip6_finish_output2(struct sk_buff *skb)
 				skb->len);
 	}
 
-	if (dst->hh)
-		return neigh_hh_output(dst->hh, skb);
-	else if (dst->neighbour)
-		return dst->neighbour->output(skb);
+	neigh = dst_get_neighbour(dst);
+	if (neigh)
+		return neigh_output(neigh, skb);
 
 	IP6_INC_STATS_BH(dev_net(dst->dev),
 			 ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES);
@@ -385,6 +385,7 @@ int ip6_forward(struct sk_buff *skb)
 	struct ipv6hdr *hdr = ipv6_hdr(skb);
 	struct inet6_skb_parm *opt = IP6CB(skb);
 	struct net *net = dev_net(dst->dev);
+	struct neighbour *n;
 	u32 mtu;
 
 	if (net->ipv6.devconf_all->forwarding == 0)
@@ -459,11 +460,10 @@ int ip6_forward(struct sk_buff *skb)
 	   send redirects to source routed frames.
 	   We don't send redirects to frames decapsulated from IPsec.
 	 */
-	if (skb->dev == dst->dev && dst->neighbour && opt->srcrt == 0 &&
-	    !skb_sec_path(skb)) {
+	n = dst_get_neighbour(dst);
+	if (skb->dev == dst->dev && n && opt->srcrt == 0 && !skb_sec_path(skb)) {
 		struct in6_addr *target = NULL;
 		struct rt6_info *rt;
-		struct neighbour *n = dst->neighbour;
 
 		/*
 		 *	incoming and outgoing devices are the same
@@ -596,6 +596,31 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
 	return offset;
 }
 
+void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt)
+{
+	static atomic_t ipv6_fragmentation_id;
+	int old, new;
+
+	if (rt) {
+		struct inet_peer *peer;
+
+		if (!rt->rt6i_peer)
+			rt6_bind_peer(rt, 1);
+		peer = rt->rt6i_peer;
+		if (peer) {
+			fhdr->identification = htonl(inet_getid(peer, 0));
+			return;
+		}
+	}
+	do {
+		old = atomic_read(&ipv6_fragmentation_id);
+		new = old + 1;
+		if (!new)
+			new = 1;
+	} while (atomic_cmpxchg(&ipv6_fragmentation_id, old, new) != old);
+	fhdr->identification = htonl(new);
+}
+
 int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 {
 	struct sk_buff *frag;
@@ -680,7 +705,7 @@ int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 		skb_reset_network_header(skb);
 		memcpy(skb_network_header(skb), tmp_hdr, hlen);
 
-		ipv6_select_ident(fh);
+		ipv6_select_ident(fh, rt);
 		fh->nexthdr = nexthdr;
 		fh->reserved = 0;
 		fh->frag_off = htons(IP6_MF);
@@ -826,7 +851,7 @@ slow_path:
 		fh->nexthdr = nexthdr;
 		fh->reserved = 0;
 		if (!frag_id) {
-			ipv6_select_ident(fh);
+			ipv6_select_ident(fh, rt);
 			frag_id = fh->identification;
 		} else
 			fh->identification = frag_id;
@@ -920,8 +945,11 @@ out:
 static int ip6_dst_lookup_tail(struct sock *sk,
 			       struct dst_entry **dst, struct flowi6 *fl6)
 {
-	int err;
 	struct net *net = sock_net(sk);
+#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
+	struct neighbour *n;
+#endif
+	int err;
 
 	if (*dst == NULL)
 		*dst = ip6_route_output(net, sk, fl6);
@@ -947,7 +975,8 @@ static int ip6_dst_lookup_tail(struct sock *sk,
 	 * dst entry and replace it instead with the
 	 * dst entry of the nexthop router
 	 */
-	if ((*dst)->neighbour && !((*dst)->neighbour->nud_state & NUD_VALID)) {
+	n = dst_get_neighbour(*dst);
+	if (n && !(n->nud_state & NUD_VALID)) {
 		struct inet6_ifaddr *ifp;
 		struct flowi6 fl_gw6;
 		int redirect;
@@ -1072,7 +1101,8 @@ static inline int ip6_ufo_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 hh_len, int fragheaderlen,
-			int transhdrlen, int mtu,unsigned int flags)
+			int transhdrlen, int mtu,unsigned int flags,
+			struct rt6_info *rt)
 
 {
 	struct sk_buff *skb;
@@ -1116,7 +1146,7 @@ static inline int ip6_ufo_append_data(struct sock *sk,
 		skb_shinfo(skb)->gso_size = (mtu - fragheaderlen -
 					     sizeof(struct frag_hdr)) & ~7;
 		skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
-		ipv6_select_ident(&fhdr);
+		ipv6_select_ident(&fhdr, rt);
 		skb_shinfo(skb)->ip6_frag_id = fhdr.identification;
 		__skb_queue_tail(&sk->sk_write_queue, skb);
 
@@ -1282,7 +1312,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
 
 			err = ip6_ufo_append_data(sk, getfrag, from, length,
 						  hh_len, fragheaderlen,
-						  transhdrlen, mtu, flags);
+						  transhdrlen, mtu, flags, rt);
 			if (err)
 				goto error;
 			return 0;
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 82a809901f8e..705c82886281 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -1354,7 +1354,8 @@ 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/ndisc.c b/net/ipv6/ndisc.c
index 7596f071d308..9da6e02eaaeb 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -107,8 +107,6 @@ static const struct neigh_ops ndisc_generic_ops = {
 	.error_report =		ndisc_error_report,
 	.output =		neigh_resolve_output,
 	.connected_output =	neigh_connected_output,
-	.hh_output =		dev_queue_xmit,
-	.queue_xmit =		dev_queue_xmit,
 };
 
 static const struct neigh_ops ndisc_hh_ops = {
@@ -117,17 +115,13 @@ static const struct neigh_ops ndisc_hh_ops = {
 	.error_report =		ndisc_error_report,
 	.output =		neigh_resolve_output,
 	.connected_output =	neigh_resolve_output,
-	.hh_output =		dev_queue_xmit,
-	.queue_xmit =		dev_queue_xmit,
 };
 
 
 static const struct neigh_ops ndisc_direct_ops = {
 	.family =		AF_INET6,
-	.output =		dev_queue_xmit,
-	.connected_output =	dev_queue_xmit,
-	.hh_output =		dev_queue_xmit,
-	.queue_xmit =		dev_queue_xmit,
+	.output =		neigh_direct_output,
+	.connected_output =	neigh_direct_output,
 };
 
 struct neigh_table nd_tbl = {
@@ -392,7 +386,7 @@ static int ndisc_constructor(struct neighbour *neigh)
 	if (!dev->header_ops) {
 		neigh->nud_state = NUD_NOARP;
 		neigh->ops = &ndisc_direct_ops;
-		neigh->output = neigh->ops->queue_xmit;
+		neigh->output = neigh_direct_output;
 	} else {
 		if (is_multicast) {
 			neigh->nud_state = NUD_NOARP;
@@ -1244,7 +1238,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 	rt = rt6_get_dflt_router(&ipv6_hdr(skb)->saddr, skb->dev);
 
 	if (rt)
-		neigh = rt->rt6i_nexthop;
+		neigh = dst_get_neighbour(&rt->dst);
 
 	if (rt && lifetime == 0) {
 		neigh_clone(neigh);
@@ -1265,7 +1259,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 			return;
 		}
 
-		neigh = rt->rt6i_nexthop;
+		neigh = dst_get_neighbour(&rt->dst);
 		if (neigh == NULL) {
 			ND_PRINTK0(KERN_ERR
 				   "ICMPv6 RA: %s() got default router without neighbour.\n",
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index cc7313b8f7ea..6a79f3081bdb 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -959,57 +959,54 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
 		return -EFAULT;
 
 	switch (optname) {
-		case IPV6_CHECKSUM:
-			if (inet_sk(sk)->inet_num == IPPROTO_ICMPV6 &&
-			    level == IPPROTO_IPV6) {
-				/*
-				 * RFC3542 tells that IPV6_CHECKSUM socket
-				 * option in the IPPROTO_IPV6 level is not
-				 * allowed on ICMPv6 sockets.
-				 * If you want to set it, use IPPROTO_RAW
-				 * level IPV6_CHECKSUM socket option
-				 * (Linux extension).
-				 */
-				return -EINVAL;
-			}
+	case IPV6_CHECKSUM:
+		if (inet_sk(sk)->inet_num == IPPROTO_ICMPV6 &&
+		    level == IPPROTO_IPV6) {
+			/*
+			 * RFC3542 tells that IPV6_CHECKSUM socket
+			 * option in the IPPROTO_IPV6 level is not
+			 * allowed on ICMPv6 sockets.
+			 * If you want to set it, use IPPROTO_RAW
+			 * level IPV6_CHECKSUM socket option
+			 * (Linux extension).
+			 */
+			return -EINVAL;
+		}
 
-			/* You may get strange result with a positive odd offset;
-			   RFC2292bis agrees with me. */
-			if (val > 0 && (val&1))
-				return -EINVAL;
-			if (val < 0) {
-				rp->checksum = 0;
-			} else {
-				rp->checksum = 1;
-				rp->offset = val;
-			}
+		/* You may get strange result with a positive odd offset;
+		   RFC2292bis agrees with me. */
+		if (val > 0 && (val&1))
+			return -EINVAL;
+		if (val < 0) {
+			rp->checksum = 0;
+		} else {
+			rp->checksum = 1;
+			rp->offset = val;
+		}
 
-			return 0;
-			break;
+		return 0;
 
-		default:
-			return -ENOPROTOOPT;
+	default:
+		return -ENOPROTOOPT;
 	}
 }
 
 static int rawv6_setsockopt(struct sock *sk, int level, int optname,
 			  char __user *optval, unsigned int optlen)
 {
-	switch(level) {
-		case SOL_RAW:
-			break;
+	switch (level) {
+	case SOL_RAW:
+		break;
 
-		case SOL_ICMPV6:
-			if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
-				return -EOPNOTSUPP;
-			return rawv6_seticmpfilter(sk, level, optname, optval,
-						   optlen);
-		case SOL_IPV6:
-			if (optname == IPV6_CHECKSUM)
-				break;
-		default:
-			return ipv6_setsockopt(sk, level, optname, optval,
-					       optlen);
+	case SOL_ICMPV6:
+		if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
+			return -EOPNOTSUPP;
+		return rawv6_seticmpfilter(sk, level, optname, optval, optlen);
+	case SOL_IPV6:
+		if (optname == IPV6_CHECKSUM)
+			break;
+	default:
+		return ipv6_setsockopt(sk, level, optname, optval, optlen);
 	}
 
 	return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
@@ -1075,21 +1072,19 @@ static int do_rawv6_getsockopt(struct sock *sk, int level, int optname,
 static int rawv6_getsockopt(struct sock *sk, int level, int optname,
 			  char __user *optval, int __user *optlen)
 {
-	switch(level) {
-		case SOL_RAW:
-			break;
+	switch (level) {
+	case SOL_RAW:
+		break;
 
-		case SOL_ICMPV6:
-			if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
-				return -EOPNOTSUPP;
-			return rawv6_geticmpfilter(sk, level, optname, optval,
-						   optlen);
-		case SOL_IPV6:
-			if (optname == IPV6_CHECKSUM)
-				break;
-		default:
-			return ipv6_getsockopt(sk, level, optname, optval,
-					       optlen);
+	case SOL_ICMPV6:
+		if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
+			return -EOPNOTSUPP;
+		return rawv6_geticmpfilter(sk, level, optname, optval, optlen);
+	case SOL_IPV6:
+		if (optname == IPV6_CHECKSUM)
+			break;
+	default:
+		return ipv6_getsockopt(sk, level, optname, optval, optlen);
 	}
 
 	return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
@@ -1119,31 +1114,29 @@ static int compat_rawv6_getsockopt(struct sock *sk, int level, int optname,
 
 static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg)
 {
-	switch(cmd) {
-		case SIOCOUTQ:
-		{
-			int amount = sk_wmem_alloc_get(sk);
+	switch (cmd) {
+	case SIOCOUTQ: {
+		int amount = sk_wmem_alloc_get(sk);
 
-			return put_user(amount, (int __user *)arg);
-		}
-		case SIOCINQ:
-		{
-			struct sk_buff *skb;
-			int amount = 0;
-
-			spin_lock_bh(&sk->sk_receive_queue.lock);
-			skb = skb_peek(&sk->sk_receive_queue);
-			if (skb != NULL)
-				amount = skb->tail - skb->transport_header;
-			spin_unlock_bh(&sk->sk_receive_queue.lock);
-			return put_user(amount, (int __user *)arg);
-		}
+		return put_user(amount, (int __user *)arg);
+	}
+	case SIOCINQ: {
+		struct sk_buff *skb;
+		int amount = 0;
+
+		spin_lock_bh(&sk->sk_receive_queue.lock);
+		skb = skb_peek(&sk->sk_receive_queue);
+		if (skb != NULL)
+			amount = skb->tail - skb->transport_header;
+		spin_unlock_bh(&sk->sk_receive_queue.lock);
+		return put_user(amount, (int __user *)arg);
+	}
 
-		default:
+	default:
 #ifdef CONFIG_IPV6_MROUTE
-			return ip6mr_ioctl(sk, cmd, (void __user *)arg);
+		return ip6mr_ioctl(sk, cmd, (void __user *)arg);
 #else
-			return -ENOIOCTLCMD;
+		return -ENOIOCTLCMD;
 #endif
 	}
 }
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 0ef1f086feb8..e8987da06667 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -72,7 +72,8 @@
 #define RT6_TRACE(x...) do { ; } while (0)
 #endif
 
-static struct rt6_info * ip6_rt_copy(struct rt6_info *ort);
+static struct rt6_info *ip6_rt_copy(const struct rt6_info *ort,
+				    const struct in6_addr *dest);
 static struct dst_entry	*ip6_dst_check(struct dst_entry *dst, u32 cookie);
 static unsigned int	 ip6_default_advmss(const struct dst_entry *dst);
 static unsigned int	 ip6_default_mtu(const struct dst_entry *dst);
@@ -127,6 +128,11 @@ static u32 *ipv6_cow_metrics(struct dst_entry *dst, unsigned long old)
 	return p;
 }
 
+static struct neighbour *ip6_neigh_lookup(const struct dst_entry *dst, const void *daddr)
+{
+	return __neigh_lookup_errno(&nd_tbl, daddr, dst->dev);
+}
+
 static struct dst_ops ip6_dst_ops_template = {
 	.family			=	AF_INET6,
 	.protocol		=	cpu_to_be16(ETH_P_IPV6),
@@ -142,6 +148,7 @@ static struct dst_ops ip6_dst_ops_template = {
 	.link_failure		=	ip6_link_failure,
 	.update_pmtu		=	ip6_rt_update_pmtu,
 	.local_out		=	__ip6_local_out,
+	.neigh_lookup		=	ip6_neigh_lookup,
 };
 
 static unsigned int ip6_blackhole_default_mtu(const struct dst_entry *dst)
@@ -168,6 +175,7 @@ static struct dst_ops ip6_dst_blackhole_ops = {
 	.default_advmss		=	ip6_default_advmss,
 	.update_pmtu		=	ip6_rt_blackhole_update_pmtu,
 	.cow_metrics		=	ip6_rt_blackhole_cow_metrics,
+	.neigh_lookup		=	ip6_neigh_lookup,
 };
 
 static const u32 ip6_template_metrics[RTAX_MAX] = {
@@ -356,7 +364,7 @@ out:
 #ifdef CONFIG_IPV6_ROUTER_PREF
 static void rt6_probe(struct rt6_info *rt)
 {
-	struct neighbour *neigh = rt ? rt->rt6i_nexthop : NULL;
+	struct neighbour *neigh = rt ? dst_get_neighbour(&rt->dst) : NULL;
 	/*
 	 * Okay, this does not seem to be appropriate
 	 * for now, however, we need to check if it
@@ -404,7 +412,7 @@ static inline int rt6_check_dev(struct rt6_info *rt, int oif)
 
 static inline int rt6_check_neigh(struct rt6_info *rt)
 {
-	struct neighbour *neigh = rt->rt6i_nexthop;
+	struct neighbour *neigh = dst_get_neighbour(&rt->dst);
 	int m;
 	if (rt->rt6i_flags & RTF_NONEXTHOP ||
 	    !(rt->rt6i_flags & RTF_GATEWAY))
@@ -683,7 +691,8 @@ int ip6_ins_rt(struct rt6_info *rt)
 	return __ip6_ins_rt(rt, &info);
 }
 
-static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, const struct in6_addr *daddr,
+static struct rt6_info *rt6_alloc_cow(const struct rt6_info *ort,
+				      const struct in6_addr *daddr,
 				      const struct in6_addr *saddr)
 {
 	struct rt6_info *rt;
@@ -692,7 +701,7 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, const struct in6_add
 	 *	Clone the route.
 	 */
 
-	rt = ip6_rt_copy(ort);
+	rt = ip6_rt_copy(ort, daddr);
 
 	if (rt) {
 		struct neighbour *neigh;
@@ -700,12 +709,11 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, const struct in6_add
 
 		if (!(rt->rt6i_flags&RTF_GATEWAY)) {
 			if (rt->rt6i_dst.plen != 128 &&
-			    ipv6_addr_equal(&rt->rt6i_dst.addr, daddr))
+			    ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
 				rt->rt6i_flags |= RTF_ANYCAST;
 			ipv6_addr_copy(&rt->rt6i_gateway, daddr);
 		}
 
-		ipv6_addr_copy(&rt->rt6i_dst.addr, daddr);
 		rt->rt6i_dst.plen = 128;
 		rt->rt6i_flags |= RTF_CACHE;
 		rt->dst.flags |= DST_HOST;
@@ -745,22 +753,23 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, const struct in6_add
 			dst_free(&rt->dst);
 			return NULL;
 		}
-		rt->rt6i_nexthop = neigh;
+		dst_set_neighbour(&rt->dst, neigh);
 
 	}
 
 	return rt;
 }
 
-static struct rt6_info *rt6_alloc_clone(struct rt6_info *ort, const struct in6_addr *daddr)
+static struct rt6_info *rt6_alloc_clone(struct rt6_info *ort,
+					const struct in6_addr *daddr)
 {
-	struct rt6_info *rt = ip6_rt_copy(ort);
+	struct rt6_info *rt = ip6_rt_copy(ort, daddr);
+
 	if (rt) {
-		ipv6_addr_copy(&rt->rt6i_dst.addr, daddr);
 		rt->rt6i_dst.plen = 128;
 		rt->rt6i_flags |= RTF_CACHE;
 		rt->dst.flags |= DST_HOST;
-		rt->rt6i_nexthop = neigh_clone(ort->rt6i_nexthop);
+		dst_set_neighbour(&rt->dst, neigh_clone(dst_get_neighbour(&ort->dst)));
 	}
 	return rt;
 }
@@ -794,7 +803,7 @@ restart:
 	dst_hold(&rt->dst);
 	read_unlock_bh(&table->tb6_lock);
 
-	if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP))
+	if (!dst_get_neighbour(&rt->dst) && !(rt->rt6i_flags & RTF_NONEXTHOP))
 		nrt = rt6_alloc_cow(rt, &fl6->daddr, &fl6->saddr);
 	else if (!(rt->dst.flags & DST_HOST))
 		nrt = rt6_alloc_clone(rt, &fl6->daddr);
@@ -900,7 +909,10 @@ struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_ori
 		new->input = dst_discard;
 		new->output = dst_discard;
 
-		dst_copy_metrics(new, &ort->dst);
+		if (dst_metrics_read_only(&ort->dst))
+			new->_metrics = ort->dst._metrics;
+		else
+			dst_copy_metrics(new, &ort->dst);
 		rt->rt6i_idev = ort->rt6i_idev;
 		if (rt->rt6i_idev)
 			in6_dev_hold(rt->rt6i_idev);
@@ -1058,8 +1070,9 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
 	}
 
 	rt->rt6i_idev     = idev;
-	rt->rt6i_nexthop  = neigh;
+	dst_set_neighbour(&rt->dst, neigh);
 	atomic_set(&rt->dst.__refcnt, 1);
+	ipv6_addr_copy(&rt->rt6i_dst.addr, addr);
 	dst_metric_set(&rt->dst, RTAX_HOPLIMIT, 255);
 	rt->dst.output  = ip6_output;
 
@@ -1338,12 +1351,12 @@ int ip6_route_add(struct fib6_config *cfg)
 		rt->rt6i_prefsrc.plen = 0;
 
 	if (cfg->fc_flags & (RTF_GATEWAY | RTF_NONEXTHOP)) {
-		rt->rt6i_nexthop = __neigh_lookup_errno(&nd_tbl, &rt->rt6i_gateway, dev);
-		if (IS_ERR(rt->rt6i_nexthop)) {
-			err = PTR_ERR(rt->rt6i_nexthop);
-			rt->rt6i_nexthop = NULL;
+		struct neighbour *n = __neigh_lookup_errno(&nd_tbl, &rt->rt6i_gateway, dev);
+		if (IS_ERR(n)) {
+			err = PTR_ERR(n);
 			goto out;
 		}
+		dst_set_neighbour(&rt->dst, n);
 	}
 
 	rt->rt6i_flags = cfg->fc_flags;
@@ -1574,10 +1587,10 @@ void rt6_redirect(const struct in6_addr *dest, const struct in6_addr *src,
 	dst_confirm(&rt->dst);
 
 	/* Duplicate redirect: silently ignore. */
-	if (neigh == rt->dst.neighbour)
+	if (neigh == dst_get_neighbour(&rt->dst))
 		goto out;
 
-	nrt = ip6_rt_copy(rt);
+	nrt = ip6_rt_copy(rt, dest);
 	if (nrt == NULL)
 		goto out;
 
@@ -1585,12 +1598,11 @@ void rt6_redirect(const struct in6_addr *dest, const struct in6_addr *src,
 	if (on_link)
 		nrt->rt6i_flags &= ~RTF_GATEWAY;
 
-	ipv6_addr_copy(&nrt->rt6i_dst.addr, dest);
 	nrt->rt6i_dst.plen = 128;
 	nrt->dst.flags |= DST_HOST;
 
 	ipv6_addr_copy(&nrt->rt6i_gateway, (struct in6_addr*)neigh->primary_key);
-	nrt->rt6i_nexthop = neigh_clone(neigh);
+	dst_set_neighbour(&nrt->dst, neigh_clone(neigh));
 
 	if (ip6_ins_rt(nrt))
 		goto out;
@@ -1670,7 +1682,7 @@ again:
 	   1. It is connected route. Action: COW
 	   2. It is gatewayed route or NONEXTHOP route. Action: clone it.
 	 */
-	if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP))
+	if (!dst_get_neighbour(&rt->dst) && !(rt->rt6i_flags & RTF_NONEXTHOP))
 		nrt = rt6_alloc_cow(rt, daddr, saddr);
 	else
 		nrt = rt6_alloc_clone(rt, daddr);
@@ -1723,7 +1735,8 @@ void rt6_pmtu_discovery(const struct in6_addr *daddr, const struct in6_addr *sad
  *	Misc support functions
  */
 
-static struct rt6_info * ip6_rt_copy(struct rt6_info *ort)
+static struct rt6_info *ip6_rt_copy(const struct rt6_info *ort,
+				    const struct in6_addr *dest)
 {
 	struct net *net = dev_net(ort->rt6i_dev);
 	struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops,
@@ -1733,6 +1746,8 @@ static struct rt6_info * ip6_rt_copy(struct rt6_info *ort)
 		rt->dst.input = ort->dst.input;
 		rt->dst.output = ort->dst.output;
 
+		ipv6_addr_copy(&rt->rt6i_dst.addr, dest);
+		rt->rt6i_dst.plen = ort->rt6i_dst.plen;
 		dst_copy_metrics(&rt->dst, &ort->dst);
 		rt->dst.error = ort->dst.error;
 		rt->rt6i_idev = ort->rt6i_idev;
@@ -1745,7 +1760,6 @@ static struct rt6_info * ip6_rt_copy(struct rt6_info *ort)
 		rt->rt6i_flags = ort->rt6i_flags & ~RTF_EXPIRES;
 		rt->rt6i_metric = 0;
 
-		memcpy(&rt->rt6i_dst, &ort->rt6i_dst, sizeof(struct rt6key));
 #ifdef CONFIG_IPV6_SUBTREES
 		memcpy(&rt->rt6i_src, &ort->rt6i_src, sizeof(struct rt6key));
 #endif
@@ -2035,7 +2049,7 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
 
 		return ERR_CAST(neigh);
 	}
-	rt->rt6i_nexthop = neigh;
+	dst_set_neighbour(&rt->dst, neigh);
 
 	ipv6_addr_copy(&rt->rt6i_dst.addr, addr);
 	rt->rt6i_dst.plen = 128;
@@ -2400,8 +2414,8 @@ static int rt6_fill_node(struct net *net,
 	if (rtnetlink_put_metrics(skb, dst_metrics_ptr(&rt->dst)) < 0)
 		goto nla_put_failure;
 
-	if (rt->dst.neighbour)
-		NLA_PUT(skb, RTA_GATEWAY, 16, &rt->dst.neighbour->primary_key);
+	if (dst_get_neighbour(&rt->dst))
+		NLA_PUT(skb, RTA_GATEWAY, 16, &dst_get_neighbour(&rt->dst)->primary_key);
 
 	if (rt->dst.dev)
 		NLA_PUT_U32(skb, RTA_OIF, rt->rt6i_dev->ifindex);
@@ -2585,6 +2599,7 @@ struct rt6_proc_arg
 static int rt6_info_route(struct rt6_info *rt, void *p_arg)
 {
 	struct seq_file *m = p_arg;
+	struct neighbour *n;
 
 	seq_printf(m, "%pi6 %02x ", &rt->rt6i_dst.addr, rt->rt6i_dst.plen);
 
@@ -2593,9 +2608,9 @@ static int rt6_info_route(struct rt6_info *rt, void *p_arg)
 #else
 	seq_puts(m, "00000000000000000000000000000000 00 ");
 #endif
-
-	if (rt->rt6i_nexthop) {
-		seq_printf(m, "%pi6", rt->rt6i_nexthop->primary_key);
+	n = dst_get_neighbour(&rt->dst);
+	if (n) {
+		seq_printf(m, "%pi6", n->primary_key);
 	} else {
 		seq_puts(m, "00000000000000000000000000000000");
 	}
@@ -2918,9 +2933,9 @@ int __init ip6_route_init(void)
 		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))
+	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 fib6_rules_init;
 
 	ret = register_netdevice_notifier(&ip6_route_dev_notifier);
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 1cca5761aea9..07bf1085458f 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -677,7 +677,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
 		struct neighbour *neigh = NULL;
 
 		if (skb_dst(skb))
-			neigh = skb_dst(skb)->neighbour;
+			neigh = dst_get_neighbour(skb_dst(skb));
 
 		if (neigh == NULL) {
 			if (net_ratelimit())
@@ -702,7 +702,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
 		struct neighbour *neigh = NULL;
 
 		if (skb_dst(skb))
-			neigh = skb_dst(skb)->neighbour;
+			neigh = dst_get_neighbour(skb_dst(skb));
 
 		if (neigh == NULL) {
 			if (net_ratelimit())
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 8b9644a8b697..89d5bf806222 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -223,6 +223,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
 	ireq->wscale_ok		= tcp_opt.wscale_ok;
 	ireq->tstamp_ok		= tcp_opt.saw_tstamp;
 	req->ts_recent		= tcp_opt.saw_tstamp ? tcp_opt.rcv_tsval : 0;
+	treq->snt_synack	= tcp_opt.saw_tstamp ? tcp_opt.rcv_tsecr : 0;
 	treq->rcv_isn = ntohl(th->seq) - 1;
 	treq->snt_isn = cookie;
 
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 87551ca568cd..78aa53492b3e 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1341,6 +1341,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 	}
 have_isn:
 	tcp_rsk(req)->snt_isn = isn;
+	tcp_rsk(req)->snt_synack = tcp_time_stamp;
 
 	security_inet_conn_request(sk, skb, req);
 
@@ -1509,6 +1510,10 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 	tcp_sync_mss(newsk, dst_mtu(dst));
 	newtp->advmss = dst_metric_advmss(dst);
 	tcp_initialize_rcv_mss(newsk);
+	if (tcp_rsk(req)->snt_synack)
+		tcp_valid_rtt_meas(newsk,
+		    tcp_time_stamp - tcp_rsk(req)->snt_synack);
+	newtp->total_retrans = req->retrans;
 
 	newinet->inet_daddr = newinet->inet_saddr = LOOPBACK4_IPV6;
 	newinet->inet_rcv_saddr = LOOPBACK4_IPV6;
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 328985c40883..29213b51c499 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1359,7 +1359,7 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb, u32 features)
 	fptr = (struct frag_hdr *)(skb_network_header(skb) + unfrag_ip6hlen);
 	fptr->nexthdr = nexthdr;
 	fptr->reserved = 0;
-	ipv6_select_ident(fptr);
+	ipv6_select_ident(fptr, (struct rt6_info *)skb_dst(skb));
 
 	/* Fragment the skb. ipv6 header and the remaining fields of the
 	 * fragment header are updated in ipv6_gso_segment()