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Message-ID: <20230726101531.169376-1-wangzhu9@huawei.com>
Date:   Wed, 26 Jul 2023 18:15:31 +0800
From:   Zhu Wang <wangzhu9@...wei.com>
To:     <pablo@...filter.org>, <kadlec@...filter.org>, <fw@...len.de>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <kaber@...sh.net>,
        <netfilter-devel@...r.kernel.org>, <coreteam@...filter.org>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <wangzhu9@...wei.com>
Subject: [PATCH -next] nf_conntrack: fix -Wunused-const-variable=

When building with W=1, the following warning occurs.

net/netfilter/nf_conntrack_proto_dccp.c:72:27: warning: ‘dccp_state_names’ defined but not used [-Wunused-const-variable=]
 static const char * const dccp_state_names[] = {

We include dccp_state_names in the macro
CONFIG_NF_CONNTRACK_PROCFS, since it is only used in the place
which is included in the macro CONFIG_NF_CONNTRACK_PROCFS.

Fixes: 2bc780499aa3 ("[NETFILTER]: nf_conntrack: add DCCP protocol support")
Signed-off-by: Zhu Wang <wangzhu9@...wei.com>
---
 net/netfilter/nf_conntrack_proto_dccp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index d4fd626d2b8c..e2db1f4ec2df 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -69,6 +69,7 @@
 
 #define DCCP_MSL (2 * 60 * HZ)
 
+#ifdef CONFIG_NF_CONNTRACK_PROCFS
 static const char * const dccp_state_names[] = {
 	[CT_DCCP_NONE]		= "NONE",
 	[CT_DCCP_REQUEST]	= "REQUEST",
@@ -81,6 +82,7 @@ static const char * const dccp_state_names[] = {
 	[CT_DCCP_IGNORE]	= "IGNORE",
 	[CT_DCCP_INVALID]	= "INVALID",
 };
+#endif
 
 #define sNO	CT_DCCP_NONE
 #define sRQ	CT_DCCP_REQUEST
-- 
2.17.1

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