netdev - [NET]: Fix breakage, use ip_hdr() for DF check in ip

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Message-ID: <20070325133731.GH521@postel.suug.ch>
Date:	Sun, 25 Mar 2007 15:37:31 +0200
From:	Thomas Graf <tgraf@...g.ch>
To:	davem@...emloft.net
Cc:	jheffner@....edu, netdev@...r.kernel.org
Subject: [NET]: Fix breakage, use ip_hdr() for DF check in ip_forward

The patch [NET] Move DF check to ip_forward broke net-2.6.22 as
skb->nh has been renamed to skb->network_header. Use ip_hdr().

Signed-off-by: Thomas Graf <tgraf@...g.ch>

Index: net-2.6.22/net/ipv4/ip_forward.c
===================================================================
--- net-2.6.22.orig/net/ipv4/ip_forward.c	2007-03-25 15:31:32.000000000 +0200
+++ net-2.6.22/net/ipv4/ip_forward.c	2007-03-25 15:32:21.000000000 +0200
@@ -86,7 +86,7 @@ int ip_forward(struct sk_buff *skb)
 		goto sr_failed;
 
 	if (unlikely(skb->len > dst_mtu(&rt->u.dst) &&
-	             (skb->nh.iph->frag_off & htons(IP_DF))) && !skb->local_df) {
+	             (ip_hdr(skb)->frag_off & htons(IP_DF))) && !skb->local_df) {
 		IP_INC_STATS(IPSTATS_MIB_FRAGFAILS);
 		icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
 			  htonl(dst_mtu(&rt->u.dst)));
-
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