linux-kernel - Re: [PATCH] netfilter: fix clusterip_net

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Date:   Thu, 7 Dec 2017 19:29:47 +0300
From:   Vasily Averin <vvs@...tuozzo.com>
To:     Arnd Bergmann <arnd@...db.de>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
        Florian Westphal <fw@...len.de>,
        "David S. Miller" <davem@...emloft.net>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
Cc:     Xin Long <lucien.xin@...il.com>, netfilter-devel@...r.kernel.org,
        coreteam@...filter.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netfilter: fix clusterip_net_exit build regression

thank you,
it was mu fault.

Reviewed-by: Vasily Averin <vvs@...tuozzo.com>

On 2017-12-07 16:26, Arnd Bergmann wrote:
> The added check produces a build error when CONFIG_PROC_FS is
> disabled:
> 
> net/ipv4/netfilter/ipt_CLUSTERIP.c: In function 'clusterip_net_exit':
> net/ipv4/netfilter/ipt_CLUSTERIP.c:822:28: error: 'cn' undeclared (first use in this function)
> 
> This moves the variable declaration out of the #ifdef to make it
> available to the WARN_ON_ONCE().
> 
> Fixes: 613d0776d3fe ("netfilter: exit_net cleanup check added")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  net/ipv4/netfilter/ipt_CLUSTERIP.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
> index e35b8d074f06..69060e3abe85 100644
> --- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
> +++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
> @@ -813,8 +813,8 @@ static int clusterip_net_init(struct net *net)
>  
>  static void clusterip_net_exit(struct net *net)
>  {
> -#ifdef CONFIG_PROC_FS
>  	struct clusterip_net *cn = net_generic(net, clusterip_net_id);
> +#ifdef CONFIG_PROC_FS
>  	proc_remove(cn->procdir);
>  	cn->procdir = NULL;
>  #endif
>