netdev - [PATCH 40/42] netfilter: ip6table_mangle: Fix set-but-unused variables.

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Message-Id: <20110417.173428.57473481.davem@davemloft.net>
Date:	Sun, 17 Apr 2011 17:34:28 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	netdev@...r.kernel.org
Subject: [PATCH 40/42] netfilter: ip6table_mangle: Fix set-but-unused
 variables.

The variable 'flowlabel' is set but unused in ip6t_mangle_out().

The intention here was to compare this key to the header value after
mangling, and trigger a route lookup on mismatch.

Make it so.

Signed-off-by: David S. Miller <davem@...emloft.net>
---
 net/ipv6/netfilter/ip6table_mangle.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index 679a0a3..00d1917 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -64,7 +64,8 @@ ip6t_mangle_out(struct sk_buff *skb, const struct net_device *out)
 	    (memcmp(&ipv6_hdr(skb)->saddr, &saddr, sizeof(saddr)) ||
 	     memcmp(&ipv6_hdr(skb)->daddr, &daddr, sizeof(daddr)) ||
 	     skb->mark != mark ||
-	     ipv6_hdr(skb)->hop_limit != hop_limit))
+	     ipv6_hdr(skb)->hop_limit != hop_limit ||
+	     flowlabel != *((u_int32_t *)ipv6_hdr(skb))))
 		return ip6_route_me_harder(skb) == 0 ? ret : NF_DROP;

 	return ret;
-- 
1.7.4.3

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