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, 5 deletions

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index df16b68644e7..6268d266c034 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1681,11 +1681,7 @@ static int tcp_v6_rcv(struct sk_buff *skb)
         TCP_SKB_CB(skb)->flags = ipv6_get_dsfield(ipv6_hdr(skb));
         TCP_SKB_CB(skb)->sacked = 0;
 
-        sk = __inet6_lookup(net, &tcp_hashinfo,
-                        &ipv6_hdr(skb)->saddr, th->source,
-                        &ipv6_hdr(skb)->daddr, ntohs(th->dest),
-                        inet6_iif(skb));
-
+        sk = __inet6_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
         if (!sk)
                 goto no_tcp_socket;