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mips: fix an off-by-one in dma_capable
author
Christoph Hellwig
<hch@lst.de>
Wed, 10 Jan 2018 15:19:47 +0000
(16:19 +0100)
committer
Christoph Hellwig
<hch@lst.de>
Wed, 10 Jan 2018 15:25:24 +0000
(16:25 +0100)
This makes it match the generic version.
Reported-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
arch/mips/include/asm/dma-mapping.h
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diff --git
a/arch/mips/include/asm/dma-mapping.h
b/arch/mips/include/asm/dma-mapping.h
index 0d9418d264f94fe69bb8750c47ba00fe36f1d9bd..5c334ac159457777b31a747f9aa169aded8e799f 100644
(file)
--- a/
arch/mips/include/asm/dma-mapping.h
+++ b/
arch/mips/include/asm/dma-mapping.h
@@
-22,7
+22,7
@@
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
if (!dev->dma_mask)
return false;
- return addr + size <= *dev->dma_mask;
+ return addr + size
- 1
<= *dev->dma_mask;
}
static inline void dma_mark_clean(void *addr, size_t size) {}