linux-kernel - Re: [PATCH -mm 3/4] alpha: remove dma_sync_single

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Message-ID: <b4198de61002032006t3703baceh9fc9d9f8bd8cc16d@mail.gmail.com>
Date:	Wed, 3 Feb 2010 23:06:37 -0500
From:	Matt Turner <mattst88@...il.com>
To:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	Richard Henderson <rth@...ddle.net>,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>
Subject: Re: [PATCH -mm 3/4] alpha: remove dma_sync_single_range

On Wed, Feb 3, 2010 at 10:13 PM, FUJITA Tomonori
<fujita.tomonori@....ntt.co.jp> wrote:
> dma_sync_single_for_cpu/for_device supports a partial sync so there is
> no point to have dma_sync_single_range (also dma_sync_single was
> obsoleted long ago, replaced with dma_sync_single_for_cpu/for_device).
>
> There is no user of dma_sync_single_range() in mainline and only Alpha
> architecture supports dma_sync_single_range(). So it's unlikely that
> someone out of the tree uses it.
>
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
> Cc: Richard Henderson <rth@...ddle.net>
> Cc: Ivan Kokshaysky <ink@...assic.park.msu.ru>
> Cc: Matt Turner <mattst88@...il.com>
> ---
>  arch/alpha/include/asm/dma-mapping.h |    1 -
>  1 files changed, 0 insertions(+), 1 deletions(-)
>
> diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
> index 04eb568..f514ede 100644
> --- a/arch/alpha/include/asm/dma-mapping.h
> +++ b/arch/alpha/include/asm/dma-mapping.h
> @@ -59,7 +59,6 @@ int dma_set_mask(struct device *dev, u64 mask);
>
>  #define dma_sync_single_for_cpu(dev, addr, size, dir)    ((void)0)
>  #define dma_sync_single_for_device(dev, addr, size, dir)  ((void)0)
> -#define dma_sync_single_range(dev, addr, off, size, dir)  ((void)0)
>  #define dma_sync_sg_for_cpu(dev, sg, nents, dir)         ((void)0)
>  #define dma_sync_sg_for_device(dev, sg, nents, dir)      ((void)0)
>  #define dma_cache_sync(dev, va, size, dir)               ((void)0)
> --
> 1.5.6.5

Acked-by: Matt Turner <mattst88@...il.com>

Should I vacuum this one up, or should it go in the -mm tree? I don't
guess there's much point in sending Linus pull requests for single
patches.

Matt
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