[SOCK]: Introduce sk_setup_caps

From tcp_v4_setup_caps, that always is preceded by a call to
__sk_dst_set, so coalesce this sequence into sk_setup_caps, removing
one call to a TCP function in the IP layer.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index f8e288c8d693..7c46a553c4af 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -711,6 +711,7 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req,
                 bh_lock_sock(newsk);
 
                 rwlock_init(&newsk->sk_dst_lock);
+                newsk->sk_dst_cache = NULL;
                 atomic_set(&newsk->sk_rmem_alloc, 0);
                 skb_queue_head_init(&newsk->sk_receive_queue);
                 atomic_set(&newsk->sk_wmem_alloc, 0);