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| author | Christoph Hellwig <hch@lst.de> | 2019-03-13 18:45:21 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2019-04-08 17:52:46 +0200 |
| commit | d7e02a931235de0779d44c6f8d211df0eca304b8 (patch) | |
| tree | 7083e3fa315feb9609d6328933e51f197035a666 /kernel | |
| parent | arm: use a dummy struct device for ISA DMA use of the DMA API (diff) | |
| download | linux-d7e02a931235de0779d44c6f8d211df0eca304b8.tar.xz linux-d7e02a931235de0779d44c6f8d211df0eca304b8.zip | |
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')
| -rw-r--r-- | kernel/dma/direct.c | 2 |
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, |