From mboxrd@z Thu Jan  1 00:00:00 1970
From: KyongHo Cho <pullip.cho@samsung.com>
Subject: Re: [PATCH 4/8] ARM: dma-mapping: implement dma sg methods on top of
 generic dma ops
Date: Mon, 20 Jun 2011 23:37:53 +0900
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To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org, linaro-mm-sig@lists.linaro.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, Kyungmin Park <kyungmin.park@samsung.com>, Arnd Bergmann <arnd@arndb.de>, Joerg Roedel <joro@8bytes.org>, Russell King - ARM Linux <linux@arm.linux.org.uk>

Hi.

On Mon, Jun 20, 2011 at 4:50 PM, Marek Szyprowski
<m.szyprowski@samsung.com> wrote:
> -extern int arm_dma_map_sg(struct device *, struct scatterlist *, int=
,
> +extern int generic_dma_map_sg(struct device *, struct scatterlist *,=
 int,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0enum dma_data_direction, struct dma_at=
trs *attrs);
> -extern void arm_dma_unmap_sg(struct device *, struct scatterlist *, =
int,
> +extern void generic_dma_unmap_sg(struct device *, struct scatterlist=
 *, int,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0enum dma_data_direction, struct dma_at=
trs *attrs);
> -extern void arm_dma_sync_sg_for_cpu(struct device *, struct scatterl=
ist *, int,
> +extern void generic_dma_sync_sg_for_cpu(struct device *, struct scat=
terlist *, int,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0enum dma_data_direction);
> -extern void arm_dma_sync_sg_for_device(struct device *, struct scatt=
erlist *, int,
> +extern void generic_dma_sync_sg_for_device(struct device *, struct s=
catterlist *, int,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0enum dma_data_direction);
>

I don't understand why you changed arm_dma_*() with generic_dma_*()
even though they're functionality is not changed
and they are still specific to ARM.
They look like that they are generic in the kernel code.

Regards,
Cho KyongHo.