xen/arm: use is_device_dma_coherent

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Use is_device_dma_coherent to check whether we need to issue cache
maintenance operations rather than checking on the existence of a
particular dma_ops function for the device.

This is correct because coherent devices don't need cache maintenance
operations - arm_coherent_dma_ops does not set the hooks that we
were previously checking for existance.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>

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Stefano Stabellini 2014-11-20 10:42:40 +00:00 • committed by David Vrabel

parent 3d5391ac6f

commit 2e2a7817fd

1 changed files with 3 additions and 3 deletions

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arch/arm/xen/mm32.c

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