x86/amd_gart: remove the mapping_error dma_map_ops method

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Return DMA_MAPPING_ERROR instead of the magic bad_dma_addr on a dma
mapping failure and let the core dma-mapping code handle the rest.

Remove the magic EMERGENCY_PAGES that the bad_dma_addr gets redirected to.

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

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Christoph Hellwig 2018-11-21 19:20:44 +01:00

parent 608b9761a0

commit 9e8aa6b546

1 changed files with 6 additions and 34 deletions

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arch/x86/kernel/amd_gart_64.c

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