From: Vinod Koul vkoul@kernel.org
[ Upstream commit 404290240827c3bb5c4e195174a8854eef2f89ac ]
We seem to have hit warnings of 'output may be truncated' which is fixed by increasing the size of 'dev_id'
drivers/dma/sh/shdmac.c: In function ‘sh_dmae_probe’: drivers/dma/sh/shdmac.c:541:34: error: ‘%d’ directive output may be truncated writing between 1 and 10 bytes into a region of size 9 [-Werror=format-truncation=] 541 | "sh-dmae%d.%d", pdev->id, id); | ^~ In function ‘sh_dmae_chan_probe’, inlined from ‘sh_dmae_probe’ at drivers/dma/sh/shdmac.c:845:9: drivers/dma/sh/shdmac.c:541:26: note: directive argument in the range [0, 2147483647] 541 | "sh-dmae%d.%d", pdev->id, id); | ^~~~~~~~~~~~~~ drivers/dma/sh/shdmac.c:541:26: note: directive argument in the range [0, 19] drivers/dma/sh/shdmac.c:540:17: note: ‘snprintf’ output between 11 and 21 bytes into a destination of size 16 540 | snprintf(sh_chan->dev_id, sizeof(sh_chan->dev_id), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 541 | "sh-dmae%d.%d", pdev->id, id); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/dma/sh/shdma.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/sh/shdma.h b/drivers/dma/sh/shdma.h index 2c0a969adc9f..35987a35a848 100644 --- a/drivers/dma/sh/shdma.h +++ b/drivers/dma/sh/shdma.h @@ -29,7 +29,7 @@ struct sh_dmae_chan { const struct sh_dmae_slave_config *config; /* Slave DMA configuration */ int xmit_shift; /* log_2(bytes_per_xfer) */ void __iomem *base; - char dev_id[16]; /* unique name per DMAC of channel */ + char dev_id[32]; /* unique name per DMAC of channel */ int pm_error; dma_addr_t slave_addr; };