linux-kernel - Re: [PATCH 2/2] fb: fix atyfb unused data warnings

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Message-ID: <20130624143737.GI305@game.jcrosoft.org>
Date:	Mon, 24 Jun 2013 16:37:37 +0200
From:	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
To:	Randy Dunlap <rdunlap@...radead.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Linux Fbdev development list <linux-fbdev@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Paul Mackerras <paulus@...ba.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Tomi Valkeinen <tomi.valkeinen@...com>
Subject: Re: [PATCH 2/2] fb: fix atyfb unused data warnings

On 19:39 Wed 19 Jun     , Randy Dunlap wrote:
> From: Randy Dunlap <rdunlap@...radead.org>
> 
> Fix compiler warnings of data defined but not used.  They are only used
> with certain kconfig settings.
> 
> drivers/video/aty/atyfb_base.c:534:13: warning: 'ram_dram' defined but not used [-Wunused-variable]
> drivers/video/aty/atyfb_base.c:535:13: warning: 'ram_resv' defined but not used [-Wunused-variable]
> 
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> Cc:	Paul Mackerras <paulus@...ba.org>
> Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
> Cc:	linux-fbdev@...r.kernel.org
> Cc:	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>
> Cc:	Tomi Valkeinen <tomi.valkeinen@...com>
> ---
>  drivers/video/aty/atyfb_base.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> --- linux-next-20130619.orig/drivers/video/aty/atyfb_base.c
> +++ linux-next-20130619/drivers/video/aty/atyfb_base.c
> @@ -531,8 +531,10 @@ static int correct_chipset(struct atyfb_
>  	return 0;
>  }
>  
> +#if defined(CONFIG_FB_ATY_GX) || defined(CONFIG_FB_ATY_CT)
>  static char ram_dram[] = "DRAM";
>  static char ram_resv[] = "RESV";
use __maybe_unused macro instead of the ifdef
> +#endif
>  #ifdef CONFIG_FB_ATY_GX
>  static char ram_vram[] = "VRAM";
>  #endif /* CONFIG_FB_ATY_GX */
> --
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