linux-kernel - Re: [PATCH 07/17] ARM: at91: skip at91_io

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Date:	Thu, 4 Oct 2012 08:23:16 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	"Jean-Christophe PLAGNIOL-VILLARD" <plagnioj@...osoft.com>
Cc:	linux-arm-kernel@...radead.org, arm@...nel.org,
	linux-kernel@...r.kernel.org,
	Nicolas Ferre <nicolas.ferre@...el.com>
Subject: Re: [PATCH 07/17] ARM: at91: skip at91_io_desc definition for NOMMU

On Tuesday 02 October 2012, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 18:36 Tue 02 Oct     , Arnd Bergmann wrote:
> > On NOMMU systems, we do cannot remap the MMIO space, so the
> > definition of at91_io_desc is unused.
> > 
> > Without this patch, building at91x40_defconfig results in:
> > 
> > arch/arm/mach-at91/setup.c:90:24: warning: 'at91_io_desc' defined but not used [-Wunused-variable]
> I prefer a __maybe_unused on the struct so the compilator will just drop it
> 

Ok, makes sense. I've fixed up the patch accordingly.

	Arnd
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