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author	Christoph Hellwig <hch@lst.de>
	Wed, 21 Nov 2018 17:56:25 +0000 (18:56 +0100)
committer	Christoph Hellwig <hch@lst.de>
	Thu, 6 Dec 2018 14:56:38 +0000 (06:56 -0800)
commit	d11e3d3d03360cd49497c837490576f793baf746
tree	ae98b833e1b5a95e1ae662d4fdbc116bd2e3799f	tree \| snapshot
parent	72fd97bf4e75e37552640614a0ea98897fc1dd77	commit \| diff

powerpc/iommu: remove the mapping_error dma_map_ops method

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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arch/powerpc/include/asm/iommu.h		diff \| blob \| history
arch/powerpc/kernel/dma-iommu.c		diff \| blob \| history
arch/powerpc/kernel/iommu.c		diff \| blob \| history
arch/powerpc/platforms/cell/iommu.c		diff \| blob \| history
arch/powerpc/platforms/pseries/vio.c		diff \| blob \| history