powerpc/iommu: remove the mapping_error dma_map_ops method

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The powerpc iommu code already returns (~(dma_addr_t)0x0) on mapping
failures, so we can switch over to returning DMA_MAPPING_ERROR and let
the core dma-mapping code handle the rest.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>

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This commit is contained in:

Christoph Hellwig 2018-11-21 18:56:25 +01:00

parent 72fd97bf4e

commit d11e3d3d03

5 changed files with 15 additions and 27 deletions

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4

arch/powerpc/include/asm/iommu.h

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6

arch/powerpc/kernel/dma-iommu.c

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28

arch/powerpc/kernel/iommu.c

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1

arch/powerpc/platforms/cell/iommu.c

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3

arch/powerpc/platforms/pseries/vio.c

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