From: Patrick McHardy <kaber@trash.net>
Date: Wed, 20 Sep 2006 19:01:34 +0000 (-0700)
Subject: [NETFILTER]: ipt_TTL: fix checksum update bug
X-Git-Tag: v3.12-rc1~34044^2~36
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ca39df6cdfbe2ea210e31117f5d469576cfe9008;p=kernel%2Fkernel-generic.git

[NETFILTER]: ipt_TTL: fix checksum update bug

Fix regression introduced by the incremental checksum patches.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/netfilter/ipt_TTL.c b/net/ipv4/netfilter/ipt_TTL.c
index 214d9d9..96e79cc 100644
--- a/net/ipv4/netfilter/ipt_TTL.c
+++ b/net/ipv4/netfilter/ipt_TTL.c
@@ -54,8 +54,8 @@ ipt_ttl_target(struct sk_buff **pskb,
 	}
 
 	if (new_ttl != iph->ttl) {
-		iph->check = nf_csum_update((iph->ttl << 8) ^ 0xFFFF,
-					    new_ttl << 8,
+		iph->check = nf_csum_update(ntohs((iph->ttl << 8)) ^ 0xFFFF,
+					    ntohs(new_ttl << 8),
 					    iph->check);
 		iph->ttl = new_ttl;
 	}