iommu/dma: Cleanup dma-iommu.h

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No need for a __KERNEL__ guard outside uapi and add a missing comment
describing the #else cpp statement.  Last but not least include
<linux/errno.h> instead of the asm version, which is frowned upon.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Christoph Hellwig 2019-05-20 09:29:26 +02:00 • committed by Joerg Roedel

parent cd6c84d8f0

commit 185da893fa

1 changed files with 2 additions and 4 deletions

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include/linux/dma-iommu.h

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