tcp: add init_seq method to tcp_request_sock_ops

More work in preparation of unifying tcp_v4_conn_request and
tcp_v6_conn_request: indirect the init sequence calls via the
tcp_request_sock_ops.

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 54fbbd8b4fcd..43478265006a 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -99,7 +99,7 @@ static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
 struct inet_hashinfo tcp_hashinfo;
 EXPORT_SYMBOL(tcp_hashinfo);
 
-static inline __u32 tcp_v4_init_sequence(const struct sk_buff *skb)
+static  __u32 tcp_v4_init_sequence(const struct sk_buff *skb)
 {
         return secure_tcp_sequence_number(ip_hdr(skb)->daddr,
                                           ip_hdr(skb)->saddr,
@@ -1284,6 +1284,7 @@ static const struct tcp_request_sock_ops tcp_request_sock_ipv4_ops = {
         .cookie_init_seq =      cookie_v4_init_sequence,
 #endif
         .route_req      =       tcp_v4_route_req,
+        .init_seq       =       tcp_v4_init_sequence,
 };
 
 int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
@@ -1391,7 +1392,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
                         goto drop_and_release;
                 }
 
-                isn = tcp_v4_init_sequence(skb);
+                isn = af_ops->init_seq(skb);
         }
         if (!dst) {
                 dst = af_ops->route_req(sk, (struct flowi *)&fl4, req, NULL);