econet: Use SKB queue and list helpers instead of doing it by-hand.

Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/econet/af_econet.c

@@ -901,15 +901,10 @@ static void aun_tx_ack(unsigned long seq, int result)
 	struct ec_cb *eb;
 
 	spin_lock_irqsave(&aun_queue_lock, flags);
-	skb = skb_peek(&aun_queue);
-	while (skb && skb != (struct sk_buff *)&aun_queue)
-	{
-		struct sk_buff *newskb = skb->next;
+	skb_queue_walk(&aun_queue, skb) {
 		eb = (struct ec_cb *)&skb->cb;
 		if (eb->seq == seq)
 			goto foundit;
-
-		skb = newskb;
 	}
 	spin_unlock_irqrestore(&aun_queue_lock, flags);
 	printk(KERN_DEBUG "AUN: unknown sequence %ld\n", seq);
@@ -982,23 +977,18 @@ static void aun_data_available(struct sock *sk, int slen)
 
 static void ab_cleanup(unsigned long h)
 {
-	struct sk_buff *skb;
+	struct sk_buff *skb, *n;
 	unsigned long flags;
 
 	spin_lock_irqsave(&aun_queue_lock, flags);
-	skb = skb_peek(&aun_queue);
-	while (skb && skb != (struct sk_buff *)&aun_queue)
-	{
-		struct sk_buff *newskb = skb->next;
+	skb_queue_walk_safe(&aun_queue, skb, n) {
 		struct ec_cb *eb = (struct ec_cb *)&skb->cb;
-		if ((jiffies - eb->start) > eb->timeout)
-		{
+		if ((jiffies - eb->start) > eb->timeout) {
 			tx_result(skb->sk, eb->cookie,
 				  ECTYPE_TRANSMIT_NOT_PRESENT);
 			skb_unlink(skb, &aun_queue);
 			kfree_skb(skb);
 		}
-		skb = newskb;
 	}
 	spin_unlock_irqrestore(&aun_queue_lock, flags);