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author	Christoph Hellwig <hch@lst.de>
	Sun, 21 May 2017 12:17:10 +0000 (14:17 +0200)
committer	Christoph Hellwig <hch@lst.de>
	Wed, 28 Jun 2017 13:54:33 +0000 (06:54 -0700)
commit	6009faa43f804c99b3d8fff94fa1e0692be70358
tree	05168471d1bc2b5d056a7e77bdc1bfd8ff844eb2	tree \| snapshot
parent	ceaf481c4f6ae6090288528825abc7d051bb1032	commit \| diff

powerpc: implement ->mapping_error

DMA_ERROR_CODE is going to go away, so don't rely on it. Instead
define a ->mapping_error method for all IOMMU based dma operation
instances. The direct ops don't ever return an error and don't
need a ->mapping_error method.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>

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arch/powerpc/include/asm/dma-mapping.h		diff \| blob \| history
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