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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-09-02 20:09:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-09-02 20:09:36 -0700 |
| commit | 60c1f89241d49bacf71035470684a8d7b4bb46ea (patch) | |
| tree | f545bc7a0ddd189b956e65353f36661f4fc12ae1 /kernel | |
| parent | 57361846b52bc686112da6ca5368d11210796804 (diff) | |
| parent | 8c89ef7b6b64ba093239305f77a485905d03f7bf (diff) | |
| download | linux-60c1f89241d49bacf71035470684a8d7b4bb46ea.tar.bz2 | |
Merge tag 'dma-mapping-4.19-2' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig:
"A few fixes for the fallout of being a little more pedantic about dma
masks"
* tag 'dma-mapping-4.19-2' of git://git.infradead.org/users/hch/dma-mapping:
of/platform: initialise AMBA default DMA masks
sparc: set a default 32-bit dma mask for OF devices
kernel/dma/direct: take DMA offset into account in dma_direct_supported
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/dma/direct.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index 1c35b7b945d0..de87b0282e74 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -168,7 +168,7 @@ int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, int nents, int dma_direct_supported(struct device *dev, u64 mask) { #ifdef CONFIG_ZONE_DMA - if (mask < DMA_BIT_MASK(ARCH_ZONE_DMA_BITS)) + if (mask < phys_to_dma(dev, DMA_BIT_MASK(ARCH_ZONE_DMA_BITS))) return 0; #else /* @@ -177,7 +177,7 @@ int dma_direct_supported(struct device *dev, u64 mask) * memory, or by providing a ZONE_DMA32. If neither is the case, the * architecture needs to use an IOMMU instead of the direct mapping. */ - if (mask < DMA_BIT_MASK(32)) + if (mask < phys_to_dma(dev, DMA_BIT_MASK(32))) return 0; #endif /* |