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Commit a5008b59 authored by Christoph Hellwig's avatar Christoph Hellwig
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dma-direct: only limit the mapping size if swiotlb could be used



Don't just check for a swiotlb buffer, but also if buffering might
be required for this particular device.

Fixes: 133d624b ("dma: Introduce dma_max_mapping_size()")
Reported-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Tested-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent b8664554
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