netdev - Re: [PATCH 1/2] net: ipv6: af_inet6: Fix warning when CONFIG

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Date:	Sat, 16 Nov 2013 13:05:22 -0500
From:	Vlad Yasevich <vyasevich@...il.com>
To:	Fabio Estevam <festevam@...il.com>, davem@...emloft.net
CC:	netdev@...r.kernel.org, Fabio Estevam <fabio.estevam@...escale.com>
Subject: Re: [PATCH 1/2] net: ipv6: af_inet6: Fix warning when CONFIG_SYSCTL=n

On 11/15/2013 09:52 PM, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam@...escale.com>
> 
> When CONFIG_SYSCTL=n the following build warning happens:
> 
> net/ipv6/af_inet6.c:710:13: warning: 'ipv6_packet_cleanup' defined but not used [-Wunused-function]
> 
> ipv6_packet_cleanup() is only used when CONFIG_SYSCTL=y, so protect its 
> definition with an'ifdef CONFIG_SYSCTL'.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam@...escale.com>
> ---
>  net/ipv6/af_inet6.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
> index ff75313..e4ad65c 100644
> --- a/net/ipv6/af_inet6.c
> +++ b/net/ipv6/af_inet6.c
> @@ -707,10 +707,12 @@ static int __init ipv6_packet_init(void)
>  	return 0;
>  }
>  
> +#ifdef CONFIG_SYSCTL
>  static void ipv6_packet_cleanup(void)
>  {
>  	dev_remove_pack(&ipv6_packet_type);
>  }
> +#endif
>  
>  static int __net_init ipv6_init_mibs(struct net *net)
>  {
> 

NACK.  ipv6_packet_init and ipv6_packet_cleanup should in no way depend
on sysctl.

-vlad
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