Messages in this thread Patch in this message | | | From | Arnd Bergmann <> | Subject | [4.4-stable 16/22] dmaengine: zx: fix build warning | Date | Tue, 20 Feb 2018 12:55:03 +0100 |
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From: Jun Nie <jun.nie@linaro.org>
commit 067fdeb2f391bfa071f741a2b3eb74b8ff3785cd upstream.
Fix build warning that related to PAGE_SIZE. The maximum DMA length has nothing to do with PAGE_SIZE, just use a fix number for the definition.
drivers/dma/zx_dma.c: In function 'zx_dma_prep_memcpy': drivers/dma/zx_dma.c:523:8: warning: division by zero [-Wdiv-by-zero] drivers/dma/zx_dma.c: In function 'zx_dma_prep_slave_sg': drivers/dma/zx_dma.c:567:11: warning: division by zero [-Wdiv-by-zero]
Signed-off-by: Jun Nie <jun.nie@linaro.org> Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com> [arnd: rebased to 4.4-stable] Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- drivers/dma/zx296702_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/zx296702_dma.c b/drivers/dma/zx296702_dma.c index 6059d81e701a..8e55403847b2 100644 --- a/drivers/dma/zx296702_dma.c +++ b/drivers/dma/zx296702_dma.c @@ -26,7 +26,7 @@ #define DRIVER_NAME "zx-dma" #define DMA_ALIGN 4 -#define DMA_MAX_SIZE (0x10000 - PAGE_SIZE) +#define DMA_MAX_SIZE (0x10000 - 512) #define LLI_BLOCK_SIZE (4 * PAGE_SIZE) #define REG_ZX_SRC_ADDR 0x00 -- 2.9.0
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