inet_hashtables: Add inet_lookup_skb helpers

To be able to use the cached socket reference in the skb during input
processing we add a new set of lookup functions that receive the skb on
their argument list.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 8b24bd833cb4..24ffc5e1d3da 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1577,8 +1577,7 @@ int tcp_v4_rcv(struct sk_buff *skb)
         TCP_SKB_CB(skb)->flags   = iph->tos;
         TCP_SKB_CB(skb)->sacked  = 0;
 
-        sk = __inet_lookup(net, &tcp_hashinfo, iph->saddr,
-                        th->source, iph->daddr, th->dest, inet_iif(skb));
+        sk = __inet_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
         if (!sk)
                 goto no_tcp_socket;