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Commit 95e499fc authored by Christoph Hellwig's avatar Christoph Hellwig
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x86: make dma_cache_sync a no-op



x86 does not implement DMA_ATTR_NON_CONSISTENT allocations, so it doesn't
make any sense to do any work in dma_cache_sync given that it must be a
no-op when dma_alloc_attrs returns coherent memory.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarRobin Murphy <robin.murphy@arm.com>
parent acfef4f1
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