1 files changed, 15 insertions, 0 deletions

diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h
index e48989f04c24..f74665d7bea8 100644
--- a/include/net/inet6_hashtables.h
+++ b/include/net/inet6_hashtables.h
@@ -91,6 +91,21 @@ static inline struct sock *__inet6_lookup(struct net *net,
         return inet6_lookup_listener(net, hashinfo, daddr, hnum, dif);
 }
 
+static inline struct sock *__inet6_lookup_skb(struct inet_hashinfo *hashinfo,
+                                              struct sk_buff *skb,
+                                              const __be16 sport,
+                                              const __be16 dport)
+{
+        struct sock *sk;
+
+        if (unlikely(sk = skb_steal_sock(skb)))
+                return sk;
+        else return __inet6_lookup(dev_net(skb->dst->dev), hashinfo,
+                                   &ipv6_hdr(skb)->saddr, sport,
+                                   &ipv6_hdr(skb)->daddr, ntohs(dport),
+                                   inet6_iif(skb));
+}
+
 extern struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo,
                                  const struct in6_addr *saddr, const __be16 sport,
                                  const struct in6_addr *daddr, const __be16 dport,