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authorDave Airlie <airlied@redhat.com>2018-11-29 10:34:03 +1000
committerDave Airlie <airlied@redhat.com>2018-11-29 10:34:03 +1000
commit1ec28f8b8ada4e4f77d1af006a3a474f4f83b8e3 (patch)
tree2e810e02a66cdec0bc82a8555796b7083ad03416 /kernel
parent61647c77cb15354a329cbb36fe7a2253b36b51b1 (diff)
parent2e6e902d185027f8e3cb8b7305238f7e35d6a436 (diff)
Merge v4.20-rc4 into drm-next
Requested by Boris Brezillon for some vc4 fixes that are needed for future vc4 work. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/dma/swiotlb.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 5731daa09a32..045930e32c0e 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -679,7 +679,8 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
}
if (!dev_is_dma_coherent(dev) &&
- (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
+ (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0 &&
+ dev_addr != DIRECT_MAPPING_ERROR)
arch_sync_dma_for_device(dev, phys, size, dir);
return dev_addr;