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Re: [PATCH 167] Kill unused variables in the net code

From: Sam Ravnborg <sam@xxxxxxxxxxxx>
Date: Fri, 7 Jan 2005 23:56:31 +0100
Mail-followup-to: linux-os@xxxxxxxxxxxx, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>, Marcelo Tosatti <marcelo.tosatti@xxxxxxxxxxxx>, Linux Kernel Development <linux-kernel@xxxxxxxxxxxxxxx>, linux-net@xxxxxxxxxxxxxxx
References: <200501072111.j07LB4EN011223@anakin.of.borg> <Pine.LNX.4.61.0501071636160.21727@chaos.analogic.com>
User-agent: Mutt/1.5.6i

On Fri, Jan 07, 2005 at 04:38:36PM -0500, linux-os wrote:
> >-#define read_unlock(lock)	do { } while(0)
> >+#define read_unlock(lock)	(void)(lock) /* Not "unused variable". */
> 
> But don't all you need to do is:
> 
> #define read_unlock(x)

Then tbl will still be unused - and compiler will emit warning.

	Sam
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References:

[PATCH 167] Kill unused variables in the net codeGeert Uytterhoeven
Re: [PATCH 167] Kill unused variables in the net codelinux-os

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