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>

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;