From: FUJITA Tomonori Date: Sun, 15 Nov 2009 12:19:53 +0000 (+0900) Subject: x86: Kill bad_dma_address variable X-Git-Tag: v2.6.33-rc1~409^2~41 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8fd524b355daef0945692227e726fb444cebcd4f;p=pandora-kernel.git x86: Kill bad_dma_address variable This kills bad_dma_address variable, the old mechanism to enable IOMMU drivers to make dma_mapping_error() work in IOMMU's specific way. bad_dma_address variable was introduced to enable IOMMU drivers to make dma_mapping_error() work in IOMMU's specific way. However, it can't handle systems that use both swiotlb and HW IOMMU. SO we introduced dma_map_ops->mapping_error to solve that case. Intel VT-d, GART, and swiotlb already use dma_map_ops->mapping_error. Calgary, AMD IOMMU, and nommu use zero for an error dma address. This adds DMA_ERROR_CODE and converts them to use it (as SPARC and POWER does). Signed-off-by: FUJITA Tomonori Acked-by: Jesse Barnes Cc: muli@il.ibm.com Cc: joerg.roedel@amd.com LKML-Reference: <1258287594-8777-3-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar --- Reading git-diff-tree failed