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    Subject[PATCH 4/7] Intel pci: Use coherent DMA mask when requested
        The __intel_map_single function is not honoring the passed in
    DMA mask. This results in not using the coherent DMA mask when
    called from intel_alloc_coherent().

    Signed-off-by: Mike Travis <travis@sgi.com>
    Acked-by: Chris Wright <chrisw@sous-sol.org>
    Reviewed-by: Mike Habeck <habeck@sgi.com>
    Cc: stable@kernel.org
    ---
    drivers/pci/intel-iommu.c | 3 +--
    1 file changed, 1 insertion(+), 2 deletions(-)

    --- linux.orig/drivers/pci/intel-iommu.c
    +++ linux/drivers/pci/intel-iommu.c
    @@ -2603,8 +2603,7 @@ static dma_addr_t __intel_map_single(str
    iommu = domain_get_iommu(domain);
    size = aligned_nrpages(paddr, size);

    - iova = intel_alloc_iova(hwdev, domain, dma_to_mm_pfn(size),
    - pdev->dma_mask);
    + iova = intel_alloc_iova(hwdev, domain, dma_to_mm_pfn(size), dma_mask);
    if (!iova)
    goto error;

    --


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