net: wrap sk->sk_backlog_rcv()

Wrap calling sk->sk_backlog_rcv() in a function. This will allow extending the
generic sk_backlog_rcv behaviour.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 6 insertions, 1 deletions

diff --git a/include/net/sock.h b/include/net/sock.h
index 18f96708f3a6..ada50c04d09f 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -482,6 +482,11 @@ static inline void sk_add_backlog(struct sock *sk, struct sk_buff *skb)
         skb->next = NULL;
 }
 
+static inline int sk_backlog_rcv(struct sock *sk, struct sk_buff *skb)
+{
+        return sk->sk_backlog_rcv(sk, skb);
+}
+
 #define sk_wait_event(__sk, __timeo, __condition)                       \
         ({      int __rc;                                               \
                 release_sock(__sk);                                     \
diff --git a/include/net/tcp.h b/include/net/tcp.h
index f6cc34143154..438014d57610 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -896,7 +896,7 @@ static inline int tcp_prequeue(struct sock *sk, struct sk_buff *skb)
                         BUG_ON(sock_owned_by_user(sk));
 
                         while ((skb1 = __skb_dequeue(&tp->ucopy.prequeue)) != NULL) {
-                                sk->sk_backlog_rcv(sk, skb1);
+                                sk_backlog_rcv(sk, skb1);
                                 NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPPREQUEUEDROPPED);
                         }