patch-2.2.8 linux/drivers/net/ethertap.c

• Lines: 25
• Date: Tue May 11 08:24:31 1999
• Orig file: v2.2.7/linux/drivers/net/ethertap.c
• Orig date: Fri Oct 23 22:01:21 1998

diff -u --recursive --new-file v2.2.7/linux/drivers/net/ethertap.c linux/drivers/net/ethertap.c
@@ -177,11 +177,21 @@
 #endif
 
 	if (skb_headroom(skb) < 2) {
-		printk(KERN_DEBUG "%s : bug --- xmit with head<2\n", dev->name);
+		static int once;
+	  	struct sk_buff *skb2;
+
+		if (!once) {
+			once = 1;
+			printk(KERN_DEBUG "%s: not aligned xmit by protocol %04x\n", dev->name, skb->protocol);
+		}
+
+		skb2 = skb_realloc_headroom(skb, 2);
 		dev_kfree_skb(skb);
-		return 0;
+		if (skb2 == NULL)
+			return 0;
+		skb = skb2;
 	}
-	skb_push(skb, 2);
+	__skb_push(skb, 2);
 
 	/* Make the same thing, which loopback does. */
 	if (skb_shared(skb)) {