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

Conflicts:
	net/ipv6/route.c

This deals with a merge conflict between the net-next addition of the
inetpeer network namespace ops, and Thomas Graf's bug fix in
2a0c451ade8e1783c5d453948289e4a978d417c9 which makes sure we don't
register /proc/net/ipv6_route before it is actually safe to do so.

Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 33 insertions, 47 deletions

diff --git a/net/can/raw.c b/net/can/raw.c
index cde1b4a20f75..46cca3a91d19 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -681,9 +681,6 @@ static int raw_sendmsg(struct kiocb *iocb, struct socket *sock,
 	if (err < 0)
 		goto free_skb;
 
-	/* to be able to check the received tx sock reference in raw_rcv() */
-	skb_shinfo(skb)->tx_flags |= SKBTX_DRV_NEEDS_SK_REF;
-
 	skb->dev = dev;
 	skb->sk  = sk;
 
diff --git a/net/core/dev.c b/net/core/dev.c
index c6e29ea65bd9..57c4f9bc6858 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2089,25 +2089,6 @@ static int dev_gso_segment(struct sk_buff *skb, netdev_features_t features)
 	return 0;
 }
 
-/*
- * Try to orphan skb early, right before transmission by the device.
- * We cannot orphan skb if tx timestamp is requested or the sk-reference
- * is needed on driver level for other reasons, e.g. see net/can/raw.c
- */
-static inline void skb_orphan_try(struct sk_buff *skb)
-{
-	struct sock *sk = skb->sk;
-
-	if (sk && !skb_shinfo(skb)->tx_flags) {
-		/* skb_tx_hash() wont be able to get sk.
-		 * We copy sk_hash into skb->rxhash
-		 */
-		if (!skb->rxhash)
-			skb->rxhash = sk->sk_hash;
-		skb_orphan(skb);
-	}
-}
-
 static bool can_checksum_protocol(netdev_features_t features, __be16 protocol)
 {
 	return ((features & NETIF_F_GEN_CSUM) ||
@@ -2193,8 +2174,6 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 		if (!list_empty(&ptype_all))
 			dev_queue_xmit_nit(skb, dev);
 
-		skb_orphan_try(skb);
-
 		features = netif_skb_features(skb);
 
 		if (vlan_tx_tag_present(skb) &&
@@ -2304,7 +2283,7 @@ u16 __skb_tx_hash(const struct net_device *dev, const struct sk_buff *skb,
 	if (skb->sk && skb->sk->sk_hash)
 		hash = skb->sk->sk_hash;
 	else
-		hash = (__force u16) skb->protocol ^ skb->rxhash;
+		hash = (__force u16) skb->protocol;
 	hash = jhash_1word(hash, hashrnd);
 
 	return (u16) (((u64) hash * qcount) >> 32) + qoffset;
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 3d84fb9d8873..f9f40b932e4b 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -362,22 +362,23 @@ EXPORT_SYMBOL(netpoll_send_skb_on_dev);
 
 void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
 {
-	int total_len, eth_len, ip_len, udp_len;
+	int total_len, ip_len, udp_len;
 	struct sk_buff *skb;
 	struct udphdr *udph;
 	struct iphdr *iph;
 	struct ethhdr *eth;
 
 	udp_len = len + sizeof(*udph);
-	ip_len = eth_len = udp_len + sizeof(*iph);
-	total_len = eth_len + ETH_HLEN + NET_IP_ALIGN;
+	ip_len = udp_len + sizeof(*iph);
+	total_len = ip_len + LL_RESERVED_SPACE(np->dev);
 
-	skb = find_skb(np, total_len, total_len - len);
+	skb = find_skb(np, total_len + np->dev->needed_tailroom,
+		       total_len - len);
 	if (!skb)
 		return;
 
 	skb_copy_to_linear_data(skb, msg, len);
-	skb->len += len;
+	skb_put(skb, len);
 
 	skb_push(skb, sizeof(*udph));
 	skb_reset_transport_header(skb);
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 215afc74d8aa..a83bf067bdc5 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1697,21 +1697,25 @@ int __init fib6_init(void)
 	ret = register_pernet_subsys(&fib6_net_ops);
 	if (ret)
 		goto out_kmem_cache_create;
-
-	ret = __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib,
-			      NULL);
-	if (ret)
-		goto out_unregister_subsys;
 out:
 	return ret;
 
-out_unregister_subsys:
-	unregister_pernet_subsys(&fib6_net_ops);
 out_kmem_cache_create:
 	kmem_cache_destroy(fib6_node_kmem);
 	goto out;
 }
 
+int __init fib6_init_late(void)
+{
+	return __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib,
+			       NULL);
+}
+
+void fib6_cleanup_late(void)
+{
+	rtnl_unregister(PF_INET6, RTM_GETROUTE);
+}
+
 void fib6_gc_cleanup(void)
 {
 	unregister_pernet_subsys(&fib6_net_ops);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 0d41f68daff2..c7ccc36ba63e 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2974,13 +2974,17 @@ int __init ip6_route_init(void)
 	if (ret)
 		goto out_kmem_cache;
 
-	ret = register_pernet_subsys(&ip6_route_net_ops);
+	ret = fib6_init();
 	if (ret)
 		goto out_dst_entries;
 
 	ret = register_pernet_subsys(&ipv6_inetpeer_ops);
 	if (ret)
-		goto out_register_subsys;
+		goto out_fib6_init;
+
+	ret = register_pernet_subsys(&ip6_route_net_ops);
+	if (ret)
+		goto out_register_inetpeer;
 
 	ip6_dst_blackhole_ops.kmem_cachep = ip6_dst_ops_template.kmem_cachep;
 
@@ -2995,13 +2999,13 @@ int __init ip6_route_init(void)
 	init_net.ipv6.ip6_blk_hole_entry->dst.dev = init_net.loopback_dev;
 	init_net.ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
   #endif
-	ret = fib6_init();
+	ret = fib6_init_late();
 	if (ret)
-		goto out_register_inetpeer;
+		goto out_register_subsys;
 
 	ret = xfrm6_init();
 	if (ret)
-		goto out_fib6_init;
+		goto out_fib6_init_late;
 
 	ret = fib6_rules_init();
 	if (ret)
@@ -3024,12 +3028,14 @@ fib6_rules_init:
 	fib6_rules_cleanup();
 xfrm6_init:
 	xfrm6_fini();
-out_fib6_init:
-	fib6_gc_cleanup();
-out_register_inetpeer:
-	unregister_pernet_subsys(&ipv6_inetpeer_ops);
+out_fib6_init_late:
+	fib6_cleanup_late();
 out_register_subsys:
 	unregister_pernet_subsys(&ip6_route_net_ops);
+out_register_inetpeer:
+	unregister_pernet_subsys(&ipv6_inetpeer_ops);
+out_fib6_init:
+	fib6_gc_cleanup();
 out_dst_entries:
 	dst_entries_destroy(&ip6_dst_blackhole_ops);
 out_kmem_cache:
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 07d7d55a1b93..cd6f7a991d80 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -372,7 +372,6 @@ static int afiucv_hs_send(struct iucv_message *imsg, struct sock *sock,
 			skb_trim(skb, skb->dev->mtu);
 	}
 	skb->protocol = ETH_P_AF_IUCV;
-	skb_shinfo(skb)->tx_flags |= SKBTX_DRV_NEEDS_SK_REF;
 	nskb = skb_clone(skb, GFP_ATOMIC);
 	if (!nskb)
 		return -ENOMEM;