Hi Ming, kernel test robot noticed the following build warnings: [auto build test WARNING on axboe-block/for-next] [also build test WARNING on linus/master v6.14-rc1 next-20250207] [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/Ming-Lei/block-remove-hctx-debugfs_dir/20250209-202320 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next patch link: https://lore.kernel.org/r/20250209122035.1327325-8-ming.lei%40redhat.com patch subject: [PATCH 7/7] block: don't grab q->debugfs_mutex config: arc-randconfig-001-20250209 (https://download.01.org/0day-ci/archive/20250210/202502100010.Kok1H3KF-lkp@xxxxxxxxx/config) compiler: arc-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250210/202502100010.Kok1H3KF-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202502100010.Kok1H3KF-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): block/blk-sysfs.c: In function 'blk_debugfs_remove': >> block/blk-sysfs.c:745:31: warning: unused variable 'q' [-Wunused-variable] 745 | struct request_queue *q = disk->queue; | ^ vim +/q +745 block/blk-sysfs.c 8324aa91d1e11a Jens Axboe 2008-01-29 742 6fc75f309d291d Christoph Hellwig 2022-11-14 743 static void blk_debugfs_remove(struct gendisk *disk) 6fc75f309d291d Christoph Hellwig 2022-11-14 744 { 6fc75f309d291d Christoph Hellwig 2022-11-14 @745 struct request_queue *q = disk->queue; 6fc75f309d291d Christoph Hellwig 2022-11-14 746 6fc75f309d291d Christoph Hellwig 2022-11-14 747 blk_trace_shutdown(q); abe3d073fa86b7 Ming Lei 2025-02-09 748 debugfs_lookup_and_remove(disk->disk_name, blk_debugfs_root); 6fc75f309d291d Christoph Hellwig 2022-11-14 749 } 6fc75f309d291d Christoph Hellwig 2022-11-14 750 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki