arm64: dma-mapping: Simplify pgprot handling

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Since __get_dma_pgprot() does The Right Thing(TM) in the non-coherent
case, and the non-cacheable alias for DMA buffers is private to the
kernel anyway, we can simplify things slightly and make the code more
readable by just using PAGE_KERNEL as the base pgprot.

Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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Robin Murphy 2015-07-31 18:28:34 +01:00 • committed by Will Deacon

parent b511a65928

commit 97942c2862

1 changed files with 2 additions and 3 deletions

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arch/arm64/mm/dma-mapping.c

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