linux-kernel - [PATCH] netfilter: fix unused variable warning in xt

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Date:	Wed, 11 Jan 2012 11:52:17 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Pablo Neira Ayuso <pablo@...filter.org>,
	Patrick McHardy <kaber@...sh.net>
Cc:	"David S. Miller" <davem@...emloft.net>,
	netfilter-devel@...r.kernel.org, netfilter@...r.kernel.org,
	coreteam@...filter.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] netfilter: fix unused variable warning in xt_hashlimit.c

Fixes this warning when CONFIG_IP6_NF_IPTABLES is not enabled:

net/netfilter/xt_hashlimit.c: In function ‘hashlimit_init_dst’:
net/netfilter/xt_hashlimit.c:448:9: warning: unused variable ‘frag_off’ [-Wunused-variable]

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 net/netfilter/xt_hashlimit.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

Sorry for the wide posting, but the MAINTAINERS file is not clear about
which mailing lists are relevant.

diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index 8e49921..d95f9c9 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -445,7 +445,6 @@ hashlimit_init_dst(const struct xt_hashlimit_htable *hinfo,
 {
 	__be16 _ports[2], *ports;
 	u8 nexthdr;
-	__be16 frag_off;
 	int poff;
 
 	memset(dst, 0, sizeof(*dst));
@@ -466,6 +465,9 @@ hashlimit_init_dst(const struct xt_hashlimit_htable *hinfo,
 		break;
 #if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
 	case NFPROTO_IPV6:
+	{
+		__be16 frag_off;
+
 		if (hinfo->cfg.mode & XT_HASHLIMIT_HASH_DIP) {
 			memcpy(&dst->ip6.dst, &ipv6_hdr(skb)->daddr,
 			       sizeof(dst->ip6.dst));
@@ -485,6 +487,7 @@ hashlimit_init_dst(const struct xt_hashlimit_htable *hinfo,
 		if ((int)protoff < 0)
 			return -1;
 		break;
+	}
 #endif
 	default:
 		BUG();
-- 
1.7.8.197.g73c6b

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

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