[PATCH 4/7] Intel pci: Use coherent DMA mask when requested

[Mike Travis <travis@sgi.com>]

[-- Attachment #1: use-coherent-dma-mask.patch --]
[-- Type: text/plain, Size: 828 bytes --]

    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;
 

--