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>

diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c
index a5a9438..87a6bc2 100644 (file)
--- 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,