Re: [PATCH v11 2/2] dmaengine: Loongson1: Add Loongson-1 APB DMA driver
From: Vinod Koul
Date: Mon Aug 05 2024 - 12:40:42 EST
On 05-08-24, 12:58, kernel test robot wrote:
> Hi Keguang,
>
> kernel test robot noticed the following build warnings:
>
> [auto build test WARNING on 048d8cb65cde9fe7534eb4440bcfddcf406bb49c]
>
> url: https://github.com/intel-lab-lkp/linux/commits/Keguang-Zhang-via-B4-Relay/dt-bindings-dma-Add-Loongson-1-APB-DMA/20240803-111220
> base: 048d8cb65cde9fe7534eb4440bcfddcf406bb49c
> patch link: https://lore.kernel.org/r/20240802-loongson1-dma-v11-2-85392357d4e0%40gmail.com
> patch subject: [PATCH v11 2/2] dmaengine: Loongson1: Add Loongson-1 APB DMA driver
> config: sparc64-randconfig-r063-20240804 (https://download.01.org/0day-ci/archive/20240805/202408051242.8kGK28W7-lkp@xxxxxxxxx/config)
> compiler: sparc64-linux-gcc (GCC) 14.1.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240805/202408051242.8kGK28W7-lkp@xxxxxxxxx/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202408051242.8kGK28W7-lkp@xxxxxxxxx/
>
> All warnings (new ones prefixed by >>):
>
> drivers/dma/loongson1-apb-dma.c: In function 'ls1x_dma_chan_probe':
> >> drivers/dma/loongson1-apb-dma.c:520:34: warning: '%u' directive writing between 1 and 10 bytes into a region of size 2 [-Wformat-overflow=]
> 520 | sprintf(pdev_irqname, "ch%u", chan_id);
> | ^~
> drivers/dma/loongson1-apb-dma.c:520:31: note: directive argument in the range [0, 2147483646]
> 520 | sprintf(pdev_irqname, "ch%u", chan_id);
> | ^~~~~~
> drivers/dma/loongson1-apb-dma.c:520:9: note: 'sprintf' output between 4 and 13 bytes into a destination of size 4
> 520 | sprintf(pdev_irqname, "ch%u", chan_id);
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Pls fix these warnings!
--
~Vinod