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authorChristoph Hellwig <hch@lst.de>2019-03-13 18:45:21 +0100
committerChristoph Hellwig <hch@lst.de>2019-04-08 17:52:46 +0200
commitd7e02a931235de0779d44c6f8d211df0eca304b8 (patch)
tree7083e3fa315feb9609d6328933e51f197035a666 /kernel/dma
parent5ab6a91a1cacd827382897a80425df8a2d27744a (diff)
dma-mapping: remove leftover NULL device support
Most dma_map_ops implementations already had some issues with a NULL device, or did simply crash if one was fed to them. Now that we have cleaned up all the obvious offenders we can stop to pretend we support this mode. Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'kernel/dma')
-rw-r--r--kernel/dma/direct.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c
index fcdb23e8d2fc..2c2772e9702a 100644
--- a/kernel/dma/direct.c
+++ b/kernel/dma/direct.c
@@ -311,7 +311,7 @@ static inline bool dma_direct_possible(struct device *dev, dma_addr_t dma_addr,
size_t size)
{
return swiotlb_force != SWIOTLB_FORCE &&
- (!dev || dma_capable(dev, dma_addr, size));
+ dma_capable(dev, dma_addr, size);
}
dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,