Re: [PATCH] intel-iommu: use coherent_dma_mask in alloc_coherent

From: David Woodhouse
Date: Sat Oct 18 2008 - 09:47:30 EST

On Wed, 2008-10-15 at 16:08 +0900, FUJITA Tomonori wrote:
> This patch fixes intel-iommu to use dev->coherent_dma_mask in
> alloc_coherent. Currently, intel-iommu uses dev->dma_mask in
> alloc_coherent but alloc_coherent is supposed to use
> coherent_dma_mask. It could break drivers that uses smaller
> coherent_dma_mask than dma_mask (though the current code works for the
> majority that use the same mask for coherent_dma_mask and dma_mask).

I've fixed this up to cope with the fact that dma_mask can be bigger
than an 'unsigned long', and committed it to the iommu-2-6.git tree.


David Woodhouse Open Source Technology Centre
David.Woodhouse@xxxxxxxxx Intel Corporation

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at