Christoph Hellwig 2f9237d4f6 dma-mapping: make support for dma ops optional ...

Avoid the overhead of the dma ops support for tiny builds that only
use the direct mapping.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>

2020-07-19 09:29:23 +02:00

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