netdev - [PATCH net-next] don't compare skb->network

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Message-Id: <1362906925-45308-1-git-send-email-honkiko@gmail.com>
Date:	Sun, 10 Mar 2013 17:15:25 +0800
From:	Hong Zhiguo <honkiko@...il.com>
To:	netdev@...r.kernel.org, davem@...emloft.net,
	stephen@...workplumber.org
Cc:	zhiguo.hong@....com, Hong Zhiguo <honkiko@...il.com>
Subject: [PATCH net-next] don't compare skb->network_header with skb->tail

in the case of NET_SKBUFF_DATA_USES_OFFSET(on 64-bit arch),
skb->network_header is just offset over skb->head.

Signed-off-by: Hong Zhiguo <honkiko@...il.com>
---
 net/core/dev.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 90cee5b..378e0b9 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1705,7 +1705,7 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
 			skb_reset_mac_header(skb2);
 
 			if (skb_network_header(skb2) < skb2->data ||
-			    skb2->network_header > skb2->tail) {
+			    skb_network_header(skb2) > skb2->tail) {
 				net_crit_ratelimited("protocol %04x is buggy, dev %s\n",
 						     ntohs(skb2->protocol),
 						     dev->name);
-- 
1.7.10.4

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