unix/garbage: kill copy of the skb queue walker

Worse yet, it seems that its arguments were in reverse order. Also
remove one related helper which seems hardly worth keeping.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/unix/garbage.c b/net/unix/garbage.c
index 14c22c3768da8875955e72836830057eb5f7db13..c8df6fda0b1fcf124b65812f600710a3b3f17069 100644 (file)
--- a/net/unix/garbage.c
+++ b/net/unix/garbage.c
@@ -153,15 +153,6 @@ void unix_notinflight(struct file *fp)
        }
 }
 
-static inline struct sk_buff *sock_queue_head(struct sock *sk)
-{
-       return (struct sk_buff *)&sk->sk_receive_queue;
-}
-
-#define receive_queue_for_each_skb(sk, next, skb) \
-       for (skb = sock_queue_head(sk)->next, next = skb->next; \
-            skb != sock_queue_head(sk); skb = next, next = skb->next)
-
 static void scan_inflight(struct sock *x, void (*func)(struct unix_sock *),
                          struct sk_buff_head *hitlist)
 {
@@ -169,7 +160,7 @@ static void scan_inflight(struct sock *x, void (*func)(struct unix_sock *),
        struct sk_buff *next;
 
        spin_lock(&x->sk_receive_queue.lock);
-       receive_queue_for_each_skb(x, next, skb) {
+       skb_queue_walk_safe(&x->sk_receive_queue, skb, next) {
                /*
                 *      Do we have file descriptors ?
                 */
@@ -225,7 +216,7 @@ static void scan_children(struct sock *x, void (*func)(struct unix_sock *),
                 * and perform a scan on them as well.
                 */
                spin_lock(&x->sk_receive_queue.lock);
-               receive_queue_for_each_skb(x, next, skb) {
+               skb_queue_walk_safe(&x->sk_receive_queue, skb, next) {
                        u = unix_sk(skb->sk);
 
                        /*