linux-kernel - Re: [PATCH v3 15/20] ARM: LPAE: use phys_addr_t instead of unsigned long for physical addresses

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Message-Id: <201011171640.47639.arnd@arndb.de>
Date:	Wed, 17 Nov 2010 16:40:47 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Catalin Marinas <catalin.marinas@....com>
Cc:	"Russell King - ARM Linux" <linux@....linux.org.uk>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Will Deacon <will.deacon@....com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 15/20] ARM: LPAE: use phys_addr_t instead of unsigned long for physical addresses

On Wednesday 17 November 2010, Catalin Marinas wrote:
> That's what I plan to add, though it may be better to push as a
> separate patch to fix compiler warnings now. I don't know when the
> LPAE patches would go in.
> 
> --- a/arch/arm/include/asm/memory.h
> +++ b/arch/arm/include/asm/memory.h
> @@ -189,7 +189,7 @@
>   * translation for translating DMA addresses.  Use the driver
>   * DMA support - see dma-mapping.h.
>   */
> -static inline phys_addr_t virt_to_phys(void *x)
> +static inline phys_addr_t virt_to_phys(const volatile void *x)
>  {
>         return __virt_to_phys((unsigned long)(x));
>  }

The only impact of this patch is reducing compiler warnings, it should
not add any. Since the patch is correct and independent of the other
changes, it still sounds like a good idea to push it into -next now.

	Arnd
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