linux-kernel - Re: [PATCH v4 19/19] dmaengine: ti: k3-udma: switch to synchronous descriptor freeing

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Message-ID: <2b9edee7-cfca-4476-839c-b1b1e903c14f@kernel.org>
Date: Thu, 5 Feb 2026 10:07:19 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: kernel test robot <lkp@...el.com>,
 Sai Sree Kartheek Adivi <s-adivi@...com>, peter.ujfalusi@...il.com,
 vkoul@...nel.org, robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
 nm@...com, ssantosh@...nel.org, dmaengine@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, vigneshr@...com
Cc: oe-kbuild-all@...ts.linux.dev, r-sharma3@...com, gehariprasath@...com
Subject: Re: [PATCH v4 19/19] dmaengine: ti: k3-udma: switch to synchronous
 descriptor freeing

On 30/01/2026 21:37, kernel test robot wrote:
> Hi Sai,
> 
> kernel test robot noticed the following build warnings:
> 
> [auto build test WARNING on vkoul-dmaengine/next]
> [also build test WARNING on next-20260130]
> [cannot apply to linus/master v6.19-rc7]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Sai-Sree-Kartheek-Adivi/dmaengine-ti-k3-udma-move-macros-to-header-file/20260130-191306
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next
> patch link:    https://lore.kernel.org/r/20260130110159.359501-20-s-adivi%40ti.com
> patch subject: [PATCH v4 19/19] dmaengine: ti: k3-udma: switch to synchronous descriptor freeing
> config: arm64-defconfig (https://download.01.org/0day-ci/archive/20260131/202601310444.S9H39g4c-lkp@intel.com/config)
> compiler: aarch64-linux-gcc (GCC) 15.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260131/202601310444.S9H39g4c-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/202601310444.S9H39g4c-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>):
> 
>    drivers/dma/ti/k3-udma-common.c: In function 'udma_desc_free':
>>> drivers/dma/ti/k3-udma-common.c:103:23: warning: unused variable 'flags' [-Wunused-variable]
>      103 |         unsigned long flags;
>          |                       ^~~~~
>>> drivers/dma/ti/k3-udma-common.c:100:26: warning: unused variable 'ud' [-Wunused-variable]
>      100 |         struct udma_dev *ud = to_udma_dev(vd->tx.chan->device);
>          |                          ^~
> 

Did you compile test your own code before sending?

Best regards,
Krzysztof