dma-direct: respect DMA_ATTR_NO_WARN

Respect the DMA_ATTR_NO_WARN flags for allocations in dma-direct. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Robin Murphy <robin.murphy@arm.com>
mariux64 · Oct 9, 2018 · b9fd042 · b9fd042
1 parent 7ed1d91
commit b9fd042
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c
@@ -114,6 +114,9 @@ void *dma_direct_alloc_pages(struct device *dev, size_t size,
 	u64 phys_mask;
 	void *ret;
 
+	if (attrs & DMA_ATTR_NO_WARN)
+		gfp |= __GFP_NOWARN;
+
 	/* we always manually zero the memory once we are done: */
 	gfp &= ~__GFP_ZERO;
 	gfp |= __dma_direct_optimal_gfp_mask(dev, dev->coherent_dma_mask,