dma-direct: implement complete bus_dma_mask handling

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Instead of rejecting devices with a too small bus_dma_mask we can handle
by taking the bus dma_mask into account for allocations and bounce
buffering decisions.

Signed-off-by: Christoph Hellwig <hch@lst.de>

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Christoph Hellwig 2018-09-20 14:04:08 +02:00

parent 7d21ee4c71

commit b4ebe60632

2 changed files with 13 additions and 11 deletions

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3

include/linux/dma-direct.h

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21

kernel/dma/direct.c

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