Re: [PATCH v2] md: fix duplicate filename for rdev

[kernel test robot <lkp@intel.com>]

Hi Yu,

kernel test robot noticed the following build warnings:

[auto build test WARNING on song-md/md-next]
[also build test WARNING on linus/master v6.4-rc3 next-20230522]
[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/Yu-Kuai/md-fix-duplicate-filename-for-rdev/20230522-221940
base:   git://git.kernel.org/pub/scm/linux/kernel/git/song/md.git md-next
patch link:    https://lore.kernel.org/r/20230522133225.2983667-1-yukuai1%40huaweicloud.com
patch subject: [PATCH v2] md: fix duplicate filename for rdev
config: i386-defconfig (https://download.01.org/0day-ci/archive/20230523/202305230956.Zk6vAYvj-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/b6addfb36d27d4c98b397edec92ed6feeaf7afab
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Yu-Kuai/md-fix-duplicate-filename-for-rdev/20230522-221940
        git checkout b6addfb36d27d4c98b397edec92ed6feeaf7afab
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/md/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202305230956.Zk6vAYvj-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/md/md.c:90:33: warning: 'md_rdev_misc_wq' defined but not used [-Wunused-variable]
      90 | static struct workqueue_struct *md_rdev_misc_wq;
         |                                 ^~~~~~~~~~~~~~~


vim +/md_rdev_misc_wq +90 drivers/md/md.c

edb39c9deda87d Goldwyn Rodrigues 2014-03-29  86  
90b08710e41a07 Bernd Schubert    2008-05-23  87  static DECLARE_WAIT_QUEUE_HEAD(resync_wait);
e804ac780e2f01 Tejun Heo         2010-10-15  88  static struct workqueue_struct *md_wq;
e804ac780e2f01 Tejun Heo         2010-10-15  89  static struct workqueue_struct *md_misc_wq;
cc1ffe61c026e2 Guoqing Jiang     2020-04-04 @90  static struct workqueue_struct *md_rdev_misc_wq;
90b08710e41a07 Bernd Schubert    2008-05-23  91  

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