Hi mingzhe, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v6.3-rc1 next-20230308] [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/mingzhe/bcache-set-io_disable-to-true-when-stop-bcache-device/20230308-172245 patch link: https://lore.kernel.org/r/20230308092036.11024-1-mingzhe.zou%40easystack.cn patch subject: [PATCH] bcache: set io_disable to true when stop bcache device config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230308/202303082025.PP1BZsDY-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/6a59a84151f42d58e6010f18c92b98cbaf58bdc1 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review mingzhe/bcache-set-io_disable-to-true-when-stop-bcache-device/20230308-172245 git checkout 6a59a84151f42d58e6010f18c92b98cbaf58bdc1 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/md/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303082025.PP1BZsDY-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/md/bcache/request.c: In function 'cached_dev_bio_fail': >> drivers/md/bcache/request.c:764:28: warning: unused variable 'dc' [-Wunused-variable] 764 | struct cached_dev *dc = container_of(s->d, struct cached_dev, disk); | ^~ vim +/dc +764 drivers/md/bcache/request.c 760 761 static void cached_dev_bio_fail(struct closure *cl) 762 { 763 struct search *s = container_of(cl, struct search, cl); > 764 struct cached_dev *dc = container_of(s->d, struct cached_dev, disk); 765 766 s->iop.status = BLK_STS_IOERR; 767 cached_dev_bio_complete(cl); 768 } 769 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
