datagram: Factor out sk queue referencing

This makes lines shorter and simplifies further patching.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 4 deletions

diff --git a/net/core/datagram.c b/net/core/datagram.c
index 68bbf9f65cb0..6f54d0a17f8e 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -180,18 +180,19 @@ struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned flags,
                  * However, this function was correct in any case. 8)
                  */
                 unsigned long cpu_flags;
+                struct sk_buff_head *queue = &sk->sk_receive_queue;
 
-                spin_lock_irqsave(&sk->sk_receive_queue.lock, cpu_flags);
-                skb = skb_peek(&sk->sk_receive_queue);
+                spin_lock_irqsave(&queue->lock, cpu_flags);
+                skb = skb_peek(queue);
                 if (skb) {
                         *peeked = skb->peeked;
                         if (flags & MSG_PEEK) {
                                 skb->peeked = 1;
                                 atomic_inc(&skb->users);
                         } else
-                                __skb_unlink(skb, &sk->sk_receive_queue);
+                                __skb_unlink(skb, queue);
                 }
-                spin_unlock_irqrestore(&sk->sk_receive_queue.lock, cpu_flags);
+                spin_unlock_irqrestore(&queue->lock, cpu_flags);
 
                 if (skb)
                         return skb;