netdev - Re: [PATCH] netfilter: ipvs: avoid unused variable warning

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Message-ID: <alpine.LFD.2.11.1511302242210.1918@ja.home.ssi.bg>
Date:	Mon, 30 Nov 2015 22:48:34 +0200 (EET)
From:	Julian Anastasov <ja@....bg>
To:	Arnd Bergmann <arnd@...db.de>
cc:	Wensong Zhang <wensong@...ux-vs.org>,
	Simon Horman <horms@...ge.net.au>, lvs-devel@...r.kernel.org,
	Pablo Neira Ayuso <pablo@...filter.org>,
	Patrick McHardy <kaber@...sh.net>,
	Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	netfilter-devel@...r.kernel.org, coreteam@...filter.org
Subject: Re: [PATCH] netfilter: ipvs: avoid unused variable warning


	Hello,

On Mon, 30 Nov 2015, Arnd Bergmann wrote:

> When CONFIG_PROC_FS is disabled, the local 'net' variable in
> ip_vs_app_net_init becomes unused, as gcc warns:
> 
> net/netfilter/ipvs/ip_vs_app.c: In function 'ip_vs_app_net_init':
> net/netfilter/ipvs/ip_vs_app.c:608:14: warning: unused variable 'net' [-Wunused-variable]
> 
> This removes the line by moving the pointer dereference into the
> user of the variable.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Acked-by: Julian Anastasov <ja@....bg>

> diff --git a/net/netfilter/ipvs/ip_vs_app.c b/net/netfilter/ipvs/ip_vs_app.c
> index 0328f7250693..e5422d3db501 100644
> --- a/net/netfilter/ipvs/ip_vs_app.c
> +++ b/net/netfilter/ipvs/ip_vs_app.c
> @@ -614,8 +614,6 @@ int __net_init ip_vs_app_net_init(struct netns_ipvs *ipvs)
>  
>  void __net_exit ip_vs_app_net_cleanup(struct netns_ipvs *ipvs)
>  {
> -	struct net *net = ipvs->net;
> -
>  	unregister_ip_vs_app(ipvs, NULL /* all */);
> -	remove_proc_entry("ip_vs_app", net->proc_net);
> +	remove_proc_entry("ip_vs_app", ipvs->net->proc_net);
>  }

Regards

--
Julian Anastasov <ja@....bg>
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