dma: Provide simple noop dma ops

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We are going to require dma_ops for several common drivers, even for
systems that do have an identity mapping. Lets provide some minimal
no-op dma_ops that can be used for that purpose.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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Christian Borntraeger 2016-02-02 21:46:32 -08:00 • committed by Michael S. Tsirkin

parent e1f33be918

commit a8463d4b0e

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include/linux/dma-mapping.h

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