Hi Ming, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on axboe-block/for-next] [also build test WARNING on v5.17 next-20220322] [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/Ming-Lei/block-avoid-to-call-blkg_free-in-atomic-context/20220323-001434 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next config: i386-randconfig-a005-20220321 (https://download.01.org/0day-ci/archive/20220323/202203230833.LMKQ6DdX-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 902f4708fe1d03b0de7e5315ef875006a6adc319) 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/c40ac630dd1d94497e427b4933efad4dbfaa0b5b git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ming-Lei/block-avoid-to-call-blkg_free-in-atomic-context/20220323-001434 git checkout c40ac630dd1d94497e427b4933efad4dbfaa0b5b # 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=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): block/blk-cgroup.c:75: warning: Function parameter or member 'work' not described in 'blkg_free_workfn' >> block/blk-cgroup.c:75: warning: expecting prototype for blkg_free(). Prototype was for blkg_free_workfn() instead vim +75 block/blk-cgroup.c a2b1693bac45ea Tejun Heo 2012-04-13 67 0381411e4b1a52 Tejun Heo 2012-03-05 68 /** 0381411e4b1a52 Tejun Heo 2012-03-05 69 * blkg_free - free a blkg 0381411e4b1a52 Tejun Heo 2012-03-05 70 * @blkg: blkg to free 0381411e4b1a52 Tejun Heo 2012-03-05 71 * 0381411e4b1a52 Tejun Heo 2012-03-05 72 * Free @blkg which may be partially allocated. 0381411e4b1a52 Tejun Heo 2012-03-05 73 */ c40ac630dd1d94 Ming Lei 2022-03-23 74 static void blkg_free_workfn(struct work_struct *work) 0381411e4b1a52 Tejun Heo 2012-03-05 @75 { c40ac630dd1d94 Ming Lei 2022-03-23 76 struct blkcg_gq *blkg = container_of(work, struct blkcg_gq, c40ac630dd1d94 Ming Lei 2022-03-23 77 free_work); e8989fae38d983 Tejun Heo 2012-03-05 78 int i; 549d3aa872cd1a Tejun Heo 2012-03-05 79 549d3aa872cd1a Tejun Heo 2012-03-05 80 if (!blkg) 549d3aa872cd1a Tejun Heo 2012-03-05 81 return; 549d3aa872cd1a Tejun Heo 2012-03-05 82 db61367038dcd2 Tejun Heo 2013-05-14 83 for (i = 0; i < BLKCG_MAX_POLS; i++) 001bea73e70efd Tejun Heo 2015-08-18 84 if (blkg->pd[i]) 001bea73e70efd Tejun Heo 2015-08-18 85 blkcg_policy[i]->pd_free_fn(blkg->pd[i]); e8989fae38d983 Tejun Heo 2012-03-05 86 0a9a25ca78437b Ming Lei 2022-03-18 87 if (blkg->q) 0a9a25ca78437b Ming Lei 2022-03-18 88 blk_put_queue(blkg->q); f73316482977ac Tejun Heo 2019-11-07 89 free_percpu(blkg->iostat_cpu); ef069b97feec11 Tejun Heo 2019-06-13 90 percpu_ref_exit(&blkg->refcnt); 549d3aa872cd1a Tejun Heo 2012-03-05 91 kfree(blkg); 0381411e4b1a52 Tejun Heo 2012-03-05 92 } 0381411e4b1a52 Tejun Heo 2012-03-05 93 -- 0-DAY CI Kernel Test Service https://01.org/lkp
