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

Signed-off-by: Peter Zijlstra <[EMAIL PROTECTED]>
---
 include/net/sock.h   |    5 +++++
 include/net/tcp.h    |    2 +-
 net/core/sock.c      |    4 ++--
 net/ipv4/tcp.c       |    2 +-
 net/ipv4/tcp_timer.c |    2 +-
 5 files changed, 10 insertions(+), 5 deletions(-)

Index: linux-2.6/include/net/sock.h
===================================================================
--- linux-2.6.orig/include/net/sock.h
+++ linux-2.6/include/net/sock.h
@@ -474,6 +474,11 @@ static inline void sk_add_backlog(struct
        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);                                     \
Index: linux-2.6/net/core/sock.c
===================================================================
--- linux-2.6.orig/net/core/sock.c
+++ linux-2.6/net/core/sock.c
@@ -325,7 +325,7 @@ int sk_receive_skb(struct sock *sk, stru
                 */
                mutex_acquire(&sk->sk_lock.dep_map, 0, 1, _RET_IP_);
 
-               rc = sk->sk_backlog_rcv(sk, skb);
+               rc = sk_backlog_rcv(sk, skb);
 
                mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_);
        } else
@@ -1360,7 +1360,7 @@ static void __release_sock(struct sock *
                        struct sk_buff *next = skb->next;
 
                        skb->next = NULL;
-                       sk->sk_backlog_rcv(sk, skb);
+                       sk_backlog_rcv(sk, skb);
 
                        /*
                         * We are in process context here with softirqs
Index: linux-2.6/net/ipv4/tcp.c
===================================================================
--- linux-2.6.orig/net/ipv4/tcp.c
+++ linux-2.6/net/ipv4/tcp.c
@@ -1158,7 +1158,7 @@ static void tcp_prequeue_process(struct 
         * necessary */
        local_bh_disable();
        while ((skb = __skb_dequeue(&tp->ucopy.prequeue)) != NULL)
-               sk->sk_backlog_rcv(sk, skb);
+               sk_backlog_rcv(sk, skb);
        local_bh_enable();
 
        /* Clear memory counter. */
Index: linux-2.6/net/ipv4/tcp_timer.c
===================================================================
--- linux-2.6.orig/net/ipv4/tcp_timer.c
+++ linux-2.6/net/ipv4/tcp_timer.c
@@ -203,7 +203,7 @@ static void tcp_delack_timer(unsigned lo
                NET_INC_STATS_BH(LINUX_MIB_TCPSCHEDULERFAILED);
 
                while ((skb = __skb_dequeue(&tp->ucopy.prequeue)) != NULL)
-                       sk->sk_backlog_rcv(sk, skb);
+                       sk_backlog_rcv(sk, skb);
 
                tp->ucopy.memory = 0;
        }
Index: linux-2.6/include/net/tcp.h
===================================================================
--- linux-2.6.orig/include/net/tcp.h
+++ linux-2.6/include/net/tcp.h
@@ -879,7 +879,7 @@ static inline int tcp_prequeue(struct so
                        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(LINUX_MIB_TCPPREQUEUEDROPPED);
                        }
 

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