inet: add sk_listener argument to inet_reqsk_alloc()

listener socket can be used to set net pointer, and will
be later used to hold a reference on listener.

Add a const qualifier to first argument (struct request_sock_ops *),
and factorize all write_pnet(&ireq->ireq_net, sock_net(sk));

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

1 files changed, 1 insertions, 2 deletions

diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 58875ce8e178..039e74dd29fe 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -189,14 +189,13 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
                 goto out;
 
         ret = NULL;
-        req = inet_reqsk_alloc(&tcp6_request_sock_ops);
+        req = inet_reqsk_alloc(&tcp6_request_sock_ops, sk);
         if (!req)
                 goto out;
 
         ireq = inet_rsk(req);
         treq = tcp_rsk(req);
         treq->listener = NULL;
-        write_pnet(&ireq->ireq_net, sock_net(sk));
         ireq->ireq_family = AF_INET6;
 
         if (security_inet_conn_request(sk, skb, req))