Re: [PATCH V3] scsi: target: tcmu: Make cmd_ring_size changeable via configfs.

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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-allyesconfig (https://download.01.org/0day-ci/archive/20220215/202202152052.AEF7jHIH-lkp@xxxxxxxxx/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # 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
        make 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@xxxxxxxxx>

All warnings (new ones prefixed by >>):

   drivers/target/target_core_user.c: In function 'tcmu_show_configfs_dev_params':
>> drivers/target/target_core_user.c:2627:41: warning: format '%u' expects argument of type 'unsigned int', but argument 3 has type 'long unsigned int' [-Wformat=]
    2627 |  bl += sprintf(b + bl, "CmdRingSizeMB: %u\n",
         |                                        ~^
         |                                         |
         |                                         unsigned int
         |                                        %lu
    2628 |         (udev->cmdr_size + CMDR_OFF) >> 20);
         |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |                                      |
         |                                      long unsigned int
   drivers/target/target_core_user.c: In function 'tcmu_cmd_ring_size_mb_show':
   drivers/target/target_core_user.c:2743:37: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'long unsigned int' [-Wformat=]
    2743 |  return snprintf(page, PAGE_SIZE, "%u\n",
         |                                    ~^
         |                                     |
         |                                     unsigned int
         |                                    %lu
    2744 |    (udev->cmdr_size + CMDR_OFF) >> 20);
         |    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |                                 |
         |                                 long unsigned int


vim +2627 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@xxxxxxxxxxxx



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