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netfilter: ipt_CLUSTERIP: fix warning unused variable cn
When CONFIG_PROC_FS isn't set the variable cn isn't used.
net/ipv4/netfilter/ipt_CLUSTERIP.c: In function ‘clusterip_net_exit’:
net/ipv4/netfilter/ipt_CLUSTERIP.c:849:24: warning: unused variable ‘cn’ [-Wunused-variable]
struct clusterip_net *cn = clusterip_pernet(net);
^~
Rework so the variable 'cn' is declared inside "#ifdef CONFIG_PROC_FS".
Fixes: b12f7bad5a
("netfilter: ipt_CLUSTERIP: remove wrong WARN_ON_ONCE in netns exit routine")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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@ -846,9 +846,9 @@ static int clusterip_net_init(struct net *net)
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static void clusterip_net_exit(struct net *net)
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{
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#ifdef CONFIG_PROC_FS
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struct clusterip_net *cn = clusterip_pernet(net);
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#ifdef CONFIG_PROC_FS
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mutex_lock(&cn->mutex);
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proc_remove(cn->procdir);
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cn->procdir = NULL;
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