From: Christoph Hellwig <hch@lst.de>
Date: Mon, 24 Sep 2018 11:10:34 +0000 (+0200)
Subject: dma-direct: respect DMA_ATTR_NO_WARN
X-Git-Tag: v5.4-rc1~2357^2~10
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b9fd04262a8abc366f40a9e97598e94591352c26;p=platform%2Fkernel%2Flinux-rpi.git

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
--- 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,