net: sk_sleep() helper

Define a new function to return the waitqueue of a "struct sock".

static inline wait_queue_head_t *sk_sleep(struct sock *sk)
{
	return sk->sk_sleep;
}

Change all read occurrences of sk_sleep by a call to this function.

Needed for a future RCU conversion. sk_sleep wont be a field directly
available.

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

1 files changed, 4 insertions, 4 deletions

diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 8ed3c37684fa..43fbf6b4b4bf 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -503,7 +503,7 @@ static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int f
         BT_DBG("sk %p timeo %ld", sk, timeo);
 
         /* Wait for an incoming connection. (wake-one). */
-        add_wait_queue_exclusive(sk->sk_sleep, &wait);
+        add_wait_queue_exclusive(sk_sleep(sk), &wait);
         while (!(nsk = bt_accept_dequeue(sk, newsock))) {
                 set_current_state(TASK_INTERRUPTIBLE);
                 if (!timeo) {
@@ -526,7 +526,7 @@ static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int f
                 }
         }
         set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
 
         if (err)
                 goto done;
@@ -621,7 +621,7 @@ static long rfcomm_sock_data_wait(struct sock *sk, long timeo)
 {
         DECLARE_WAITQUEUE(wait, current);
 
-        add_wait_queue(sk->sk_sleep, &wait);
+        add_wait_queue(sk_sleep(sk), &wait);
         for (;;) {
                 set_current_state(TASK_INTERRUPTIBLE);
 
@@ -640,7 +640,7 @@ static long rfcomm_sock_data_wait(struct sock *sk, long timeo)
         }
 
         __set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
         return timeo;
 }