[PATCH 11/34] mips: fix an off-by-one in dma_capable
From: Christoph Hellwig <hch@lst.de>
Date: 2018-01-12 08:43:21
Also in:
linux-alpha, linux-arch, linux-arm-kernel, linux-iommu, linux-mips, linux-s390, linux-sh, lkml, sparclinux
Subsystem:
mips, the rest · Maintainers:
Thomas Bogendoerfer, Linus Torvalds
This makes it match the generic version. Reported-by: Vladimir Murzin <redacted> Signed-off-by: Christoph Hellwig <hch@lst.de> --- arch/mips/include/asm/dma-mapping.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 0d9418d264f9..5c334ac15945 100644
--- 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) {}
--
2.14.2