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SubjectRe: [PATCH 2/5] x86: move pci-nommu's dma_mask check to common code
On Mon, Sep 08, 2008 at 06:10:11PM +0900, FUJITA Tomonori wrote:
> The check to see if dev->dma_mask is NULL in pci-nommu is more
> appropriate for dma_alloc_coherent().
>
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

Acked-by: Joerg Roedel <joerg.roedel@amd.com>

> ---
> arch/x86/kernel/pci-nommu.c | 3 ---
> include/asm-x86/dma-mapping.h | 3 +++
> 2 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
> index 73853d3..0f51883 100644
> --- a/arch/x86/kernel/pci-nommu.c
> +++ b/arch/x86/kernel/pci-nommu.c
> @@ -80,9 +80,6 @@ nommu_alloc_coherent(struct device *hwdev, size_t size,
> int node;
> struct page *page;
>
> - if (hwdev->dma_mask == NULL)
> - return NULL;
> -
> gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
> gfp |= __GFP_ZERO;
>
> diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
> index bc6c8df..39d3641 100644
> --- a/include/asm-x86/dma-mapping.h
> +++ b/include/asm-x86/dma-mapping.h
> @@ -256,6 +256,9 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
> gfp |= GFP_DMA;
> }
>
> + if (!dev->dma_mask)
> + return NULL;
> +
> if (ops->alloc_coherent)
> return ops->alloc_coherent(dev, size,
> dma_handle, gfp);
> --
> 1.5.5.GIT
>
>

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