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| author | Christoph Hellwig <hch@lst.de> | 2018-12-22 09:21:08 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-22 08:46:27 -0800 |
| commit | 0cd60eb1a7b5421e92a3489e1829bfb2243e21e1 (patch) | |
| tree | 13e687e84af384b541a2f12fe0856c2a5107e6a7 /include/linux/dma-mapping.h | |
| parent | 23203e3f34c97f4ddd6e353adba45161880a52a4 (diff) | |
| download | lwn-0cd60eb1a7b5421e92a3489e1829bfb2243e21e1.tar.gz lwn-0cd60eb1a7b5421e92a3489e1829bfb2243e21e1.zip | |
dma-mapping: fix flags in dma_alloc_wc
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>
Diffstat (limited to 'include/linux/dma-mapping.h')
| -rw-r--r-- | include/linux/dma-mapping.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 15bd41447025..d327bdd53716 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -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; |