Re: [PATCH] net: netfilter: nfnetlink: Fixed warning fornfnl_get_lock

From: Borislav Petkov
Date: Mon Mar 04 2013 - 16:06:18 EST


On Mon, Mar 04, 2013 at 09:43:11PM +0200, Alexandru Gheorghiu wrote:
> Removed unused function nfnl_get_lock which fixed the following warning:
> net/netfilter/nfnetlink.c:65:22: warning: ânfnl_get_lockâ defined but not used [-Wunused-function]
>
> Signed-off-by: Alexandru Gheorghiu <gheorghiuandru@xxxxxxxxx>
> ---
> net/netfilter/nfnetlink.c | 5 -----
> 1 file changed, 5 deletions(-)
>
> diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
> index d578ec2..44aa0a7 100644
> --- a/net/netfilter/nfnetlink.c
> +++ b/net/netfilter/nfnetlink.c
> @@ -62,11 +62,6 @@ void nfnl_unlock(__u8 subsys_id)
> }
> EXPORT_SYMBOL_GPL(nfnl_unlock);
>
> -static struct mutex *nfnl_get_lock(__u8 subsys_id)
> -{
> - return &table[subsys_id].mutex;
> -}
> -

I see the same warning here, gcc (Debian 4.7.2-5) 4.7.2.

Actually this function *is* used a bit further in the same file in
nfnetlink_rcv_msg().

But gcc complains for some reason of which I don't even have the
slightest idea. However, if you declare the above function "static
inline..." the warning is gone.

--
Regards/Gruss,
Boris.

Sent from a fat crate under my desk. Formatting is fine.
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