Re: [PATCH v2 2/3] Added Xilinx XDMA IP core driver

From: kernel test robot <lkp@intel.com>
To: tumic@gpxsee.org, Mauro Carvalho Chehab <mchehab@kernel.org>,
	Vinod Koul <vkoul@kernel.org>, Michal Simek <monstr@monstr.eu>
Cc: kbuild-all@lists.01.org, linux-media@vger.kernel.org,
	linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org,
	linux-i2c@vger.kernel.org,
	"Martin Tůma" <martin.tuma@digiteqautomotive.com>
Subject: Re: [PATCH v2 2/3] Added Xilinx XDMA IP core driver
Date: Tue, 20 Sep 2022 10:12:44 +0800	[thread overview]
Message-ID: <202209201009.KI4tLr7u-lkp@intel.com> (raw)
In-Reply-To: <20220919185556.5215-3-tumic@gpxsee.org>

Hi,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on vkoul-dmaengine/next]
[also build test WARNING on linus/master v6.0-rc6 next-20220919]
[cannot apply to media-tree/master xilinx-xlnx/master]
[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/tumic-gpxsee-org/Digiteq-Automotive-MGB4-driver/20220920-021718
base:   https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next
config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20220920/202209201009.KI4tLr7u-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/ad840c5e2b9ee9a8b1ceb4879fe7f82edcc767c5
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review tumic-gpxsee-org/Digiteq-Automotive-MGB4-driver/20220920-021718
        git checkout ad840c5e2b9ee9a8b1ceb4879fe7f82edcc767c5
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/dma/xilinx/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   drivers/dma/xilinx/xilinx_xdma.c: In function 'read_interrupts':
>> drivers/dma/xilinx/xilinx_xdma.c:409:17: warning: variable 'hi' set but not used [-Wunused-but-set-variable]
     409 |         u32 lo, hi;
         |                 ^~
>> drivers/dma/xilinx/xilinx_xdma.c:409:13: warning: variable 'lo' set but not used [-Wunused-but-set-variable]
     409 |         u32 lo, hi;
         |             ^~

vim +/hi +409 drivers/dma/xilinx/xilinx_xdma.c

   404	
   405	static void read_interrupts(struct xdma_dev *xdev)
   406	{
   407		struct interrupt_regs *reg =
   408			(struct interrupt_regs *)(xdev->config_bar + XDMA_OFS_INT_CTRL);
 > 409		u32 lo, hi;
   410	
   411		hi = ioread32(&reg->user_int_request);
   412		lo = ioread32(&reg->channel_int_request);
   413	}
   414	

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https://01.org/lkp