tcp: get_cookie_sock() consolidation

IPv4 and IPv6 share same implementation of get_cookie_sock(),
and there is no point inlining it.

We add tcp_ prefix to the common helper name and export it.

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

1 files changed, 1 insertions, 18 deletions

diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 21bc2eb53c57..0909f4e0d53c 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -41,23 +41,6 @@ static __u16 const msstab[] = {
         9000 - 60,
 };
 
-static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
-                                           struct request_sock *req,
-                                           struct dst_entry *dst)
-{
-        struct inet_connection_sock *icsk = inet_csk(sk);
-        struct sock *child;
-
-        child = icsk->icsk_af_ops->syn_recv_sock(sk, skb, req, dst);
-        if (child) {
-                atomic_set(&req->rsk_refcnt, 1);
-                inet_csk_reqsk_queue_add(sk, req, child);
-        } else {
-                reqsk_free(req);
-        }
-        return child;
-}
-
 static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS],
                       ipv6_cookie_scratch);
 
@@ -264,7 +247,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
         ireq->rcv_wscale = rcv_wscale;
         ireq->ecn_ok = cookie_ecn_ok(&tcp_opt, sock_net(sk), dst);
 
-        ret = get_cookie_sock(sk, skb, req, dst);
+        ret = tcp_get_cookie_sock(sk, skb, req, dst);
 out:
         return ret;
 out_free: