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Date:   Tue, 15 Feb 2022 22:49:01 +0800
From:   kernel test robot <lkp@intel.com>
To:     Guixin Liu <kanie@linux.alibaba.com>, bostroesser@gmail.com,
        martin.petersen@oracle.com
Cc:     llvm@lists.linux.dev, kbuild-all@lists.01.org,
        linux-scsi@vger.kernel.org, target-devel@vger.kernel.org,
        linux-kernel@vger.kernel.org, xiaoguang.wang@linux.alibaba.com,
        xlpang@linux.alibaba.com
Subject: Re: [PATCH V3] scsi: target: tcmu: Make cmd_ring_size changeable via
 configfs.
Message-ID: <202202152239.8LJNreof-lkp@intel.com>
References: <1644912216-97633-1-git-send-email-kanie@linux.alibaba.com>
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In-Reply-To: <1644912216-97633-1-git-send-email-kanie@linux.alibaba.com>
User-Agent: Mutt/1.10.1 (2018-07-13)
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Hi Guixin,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on mkp-scsi/for-next]
[also build test WARNING on v5.17-rc4 next-20220215]
[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]

url:    https://github.com/0day-ci/linux/commits/Guixin-Liu/scsi-target-tcmu-Make-cmd_ring_size-changeable-via-configfs/20220215-160505
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next
config: x86_64-randconfig-a005-20220214 (https://download.01.org/0day-ci/archive/20220215/202202152239.8LJNreof-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 37f422f4ac31c8b8041c6b62065263314282dab6)
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/0day-ci/linux/commit/7f77700542b8196c546ef10656dda7a107d8d1ad
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Guixin-Liu/scsi-target-tcmu-Make-cmd_ring_size-changeable-via-configfs/20220215-160505
        git checkout 7f77700542b8196c546ef10656dda7a107d8d1ad
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/target/

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

All warnings (new ones prefixed by >>):

>> drivers/target/target_core_user.c:2628:9: warning: format specifies type 'unsigned int' but the argument has type 'unsigned long' [-Wformat]
                         (udev->cmdr_size + CMDR_OFF) >> 20);
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/target/target_core_user.c:2744:4: warning: format specifies type 'unsigned int' but the argument has type 'unsigned long' [-Wformat]
                           (udev->cmdr_size + CMDR_OFF) >> 20);
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   2 warnings generated.


vim +2628 drivers/target/target_core_user.c

  2616	
  2617	static ssize_t tcmu_show_configfs_dev_params(struct se_device *dev, char *b)
  2618	{
  2619		struct tcmu_dev *udev = TCMU_DEV(dev);
  2620		ssize_t bl = 0;
  2621	
  2622		bl = sprintf(b + bl, "Config: %s ",
  2623			     udev->dev_config[0] ? udev->dev_config : "NULL");
  2624		bl += sprintf(b + bl, "Size: %llu ", udev->dev_size);
  2625		bl += sprintf(b + bl, "MaxDataAreaMB: %u ", udev->data_area_mb);
  2626		bl += sprintf(b + bl, "DataPagesPerBlk: %u", udev->data_pages_per_blk);
  2627		bl += sprintf(b + bl, "CmdRingSizeMB: %u\n",
> 2628			      (udev->cmdr_size + CMDR_OFF) >> 20);
  2629	
  2630		return bl;
  2631	}
  2632	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org