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dma-mapping: fix flags in dma_alloc_wc

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We really need the writecombine flag in dma_alloc_wc, fix a stupid
oversight.

Fixes: 7ed1d91a9e ("dma-mapping: translate __GFP_NOFAIL to DMA_ATTR_NO_WARN")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig 2018-12-22 09:21:08 +01:00 committed by Linus Torvalds
parent 23203e3f34
commit 0cd60eb1a7
1 changed files with 1 additions and 1 deletions
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2
include/linux/dma-mapping.h
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@ -796,7 +796,7 @@ static inline void dmam_release_declared_memory(struct device *dev)
static inline void *dma_alloc_wc(struct device *dev, size_t size,
dma_addr_t *dma_addr, gfp_t gfp)
{
unsigned long attrs = DMA_ATTR_NO_WARN;
unsigned long attrs = DMA_ATTR_WRITE_COMBINE;
if (gfp & __GFP_NOWARN)
attrs |= DMA_ATTR_NO_WARN;