linux-kernel - Re: [PATCH 2/2] ARM: at91: Use proper _

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Date:	Sun, 11 Mar 2012 19:02:10 -0700
From:	Olof Johansson <olof@...om.net>
To:	Alan Ott <alan@...nal11.us>
Cc:	Andrew Victor <linux@...im.org.za>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Russell King <linux@....linux.org.uk>,
	Arnd Bergmann <arnd@...db.de>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] ARM: at91: Use proper __iomem annotations

Hi,

On Sat, Mar 10, 2012 at 10:44 AM, Alan Ott <alan@...nal11.us> wrote:
> diff --git a/arch/arm/mach-at91/include/mach/hardware.h b/arch/arm/mach-at91/include/mach/hardware.h
> index 2d0e4e9..91375e2 100644
> --- a/arch/arm/mach-at91/include/mach/hardware.h
> +++ b/arch/arm/mach-at91/include/mach/hardware.h
> @@ -75,8 +75,12 @@
>  * to 0xFEF78000 .. 0xFF000000.  (544Kb)
>  */
>  #define AT91_IO_PHYS_BASE      0xFFF78000
> +#ifdef __ASSEMBLER__
>  #define AT91_IO_VIRT_BASE      (0xFF000000 - AT91_IO_SIZE)
>  #else
> +#define AT91_IO_VIRT_BASE      (void __iomem *)(0xFF000000 - AT91_IO_SIZE)
> +#endif
> +#else

This can use the IOMEM()-style macro instead, Rob Herring just moved
those to a common header file (not yet in any tree though).


-Olof
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