linux-kernel - Re: [PATCH v11 2/2] dmaengine: Loongson1: Add Loongson-1 APB DMA driver

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Message-ID: <ZrEAaB_I1S2vM2EE@matsya>
Date: Mon, 5 Aug 2024 22:10:08 +0530
From: Vinod Koul <vkoul@...nel.org>
To: kernel test robot <lkp@...el.com>
Cc: Keguang Zhang via B4 Relay <devnull+keguang.zhang.gmail.com@...nel.org>,
	Keguang Zhang <keguang.zhang@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, oe-kbuild-all@...ts.linux.dev,
	linux-mips@...r.kernel.org, dmaengine@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Jiaxun Yang <jiaxun.yang@...goat.com>
Subject: Re: [PATCH v11 2/2] dmaengine: Loongson1: Add Loongson-1 APB DMA
 driver

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@intel.com/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@intel.com/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@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202408051242.8kGK28W7-lkp@intel.com/
> 
> 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