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>
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 15bd414..d327bdd 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -796,7 +796,7 @@
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;