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author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2019-05-20 11:33:25 -0700 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-05-21 11:45:48 +0200 |
commit | af5b2e70c43f0dffbbabbcdb179624c5497eb5e4 (patch) | |
tree | 4c1d40517908e2441972a1038ce9e486b92d19ff | |
parent | fc9304b7f77367ed603198bd50e26b57c170641f (diff) | |
download | barebox-af5b2e70c43f0dffbbabbcdb179624c5497eb5e4.tar.gz barebox-af5b2e70c43f0dffbbabbcdb179624c5497eb5e4.tar.xz |
ARM: include: dma: Zero out DMA coherent memory in no-MMU case
Add code to match the behavior of dma_alloc_coherent() when CONFIG_MMU
is selected.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r-- | arch/arm/include/asm/dma.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/include/asm/dma.h b/arch/arm/include/asm/dma.h index bb7e62af03..15999a524d 100644 --- a/arch/arm/include/asm/dma.h +++ b/arch/arm/include/asm/dma.h @@ -20,6 +20,8 @@ static inline void *dma_alloc_coherent(size_t size, dma_addr_t *dma_handle) if (dma_handle) *dma_handle = (dma_addr_t)ret; + memset(ret, 0, size); + return ret; } |