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>

2 files changed, 7 insertions, 7 deletions

diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index 8062dad6d10d..f10b41fb05a0 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -474,7 +474,7 @@ static int bnep_session(void *arg)
         set_user_nice(current, -15);
 
         init_waitqueue_entry(&wait, current);
-        add_wait_queue(sk->sk_sleep, &wait);
+        add_wait_queue(sk_sleep(sk), &wait);
         while (!atomic_read(&s->killed)) {
                 set_current_state(TASK_INTERRUPTIBLE);
 
@@ -496,7 +496,7 @@ static int bnep_session(void *arg)
                 schedule();
         }
         set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
 
         /* Cleanup session */
         down_write(&bnep_session_sem);
@@ -507,7 +507,7 @@ static int bnep_session(void *arg)
         /* Wakeup user-space polling for socket errors */
         s->sock->sk->sk_err = EUNATCH;
 
-        wake_up_interruptible(s->sock->sk->sk_sleep);
+        wake_up_interruptible(sk_sleep(s->sock->sk));
 
         /* Release the socket */
         fput(s->sock->file);
@@ -638,7 +638,7 @@ int bnep_del_connection(struct bnep_conndel_req *req)
 
                 /* Kill session thread */
                 atomic_inc(&s->killed);
-                wake_up_interruptible(s->sock->sk->sk_sleep);
+                wake_up_interruptible(sk_sleep(s->sock->sk));
         } else
                 err = -ENOENT;
 
diff --git a/net/bluetooth/bnep/netdev.c b/net/bluetooth/bnep/netdev.c
index d48b33f4d4ba..0faad5ce6dc4 100644
--- a/net/bluetooth/bnep/netdev.c
+++ b/net/bluetooth/bnep/netdev.c
@@ -109,7 +109,7 @@ static void bnep_net_set_mc_list(struct net_device *dev)
         }
 
         skb_queue_tail(&sk->sk_write_queue, skb);
-        wake_up_interruptible(sk->sk_sleep);
+        wake_up_interruptible(sk_sleep(sk));
 #endif
 }
 
@@ -193,11 +193,11 @@ static netdev_tx_t bnep_net_xmit(struct sk_buff *skb,
         /*
          * We cannot send L2CAP packets from here as we are potentially in a bh.
          * So we have to queue them and wake up session thread which is sleeping
-         * on the sk->sk_sleep.
+         * on the sk_sleep(sk).
          */
         dev->trans_start = jiffies;
         skb_queue_tail(&sk->sk_write_queue, skb);
-        wake_up_interruptible(sk->sk_sleep);
+        wake_up_interruptible(sk_sleep(sk));
 
         if (skb_queue_len(&sk->sk_write_queue) >= BNEP_TX_QUEUE_LEN) {
                 BT_DBG("tx queue is full");