net: introduce sk_ehashfn() helper

Goal is to unify IPv4/IPv6 inet_hash handling, and use common helpers
for all kind of sockets (full sockets, timewait and request sockets)

inet_sk_ehashfn() becomes sk_ehashfn() but still only copes with IPv4

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index eb1963af0ebd..ef993ef571ea 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -383,6 +383,8 @@ static inline struct sock *__inet_lookup_skb(struct inet_hashinfo *hashinfo,
                                      iph->daddr, dport, inet_iif(skb));
 }
 
+u32 sk_ehashfn(const struct sock *sk);
+
 int __inet_hash_connect(struct inet_timewait_death_row *death_row,
                         struct sock *sk, u32 port_offset,
                         int (*check_established)(struct inet_timewait_death_row *,