Hi Waiman, kernel test robot noticed the following build warnings: [auto build test WARNING on shuah-kselftest/next] [also build test WARNING on shuah-kselftest/fixes linus/master v6.7-rc1] [cannot apply to tj-cgroup/for-next tj-wq/for-next next-20231115] [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/Waiman-Long/workqueue-Make-workqueue_set_unbound_cpumask-static/20231116-010940 base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next patch link: https://lore.kernel.org/r/20231115170359.163299-2-longman%40redhat.com patch subject: [PATCH v3 1/5] workqueue: Make workqueue_set_unbound_cpumask() static config: i386-tinyconfig (https://download.01.org/0day-ci/archive/20231116/202311160353.FAdfQwO3-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231116/202311160353.FAdfQwO3-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/202311160353.FAdfQwO3-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> kernel/workqueue.c:4421:13: warning: 'apply_wqattrs_unlock' defined but not used [-Wunused-function] 4421 | static void apply_wqattrs_unlock(void) | ^~~~~~~~~~~~~~~~~~~~ >> kernel/workqueue.c:4414:13: warning: 'apply_wqattrs_lock' defined but not used [-Wunused-function] 4414 | static void apply_wqattrs_lock(void) | ^~~~~~~~~~~~~~~~~~ vim +/apply_wqattrs_unlock +4421 kernel/workqueue.c 8864b4e59f7945 Tejun Heo 2013-03-12 4413 a0111cf6710bd1 Lai Jiangshan 2015-05-19 @4414 static void apply_wqattrs_lock(void) a0111cf6710bd1 Lai Jiangshan 2015-05-19 4415 { a0111cf6710bd1 Lai Jiangshan 2015-05-19 4416 /* CPUs should stay stable across pwq creations and installations */ ffd8bea81fbb5a Sebastian Andrzej Siewior 2021-08-03 4417 cpus_read_lock(); a0111cf6710bd1 Lai Jiangshan 2015-05-19 4418 mutex_lock(&wq_pool_mutex); a0111cf6710bd1 Lai Jiangshan 2015-05-19 4419 } a0111cf6710bd1 Lai Jiangshan 2015-05-19 4420 a0111cf6710bd1 Lai Jiangshan 2015-05-19 @4421 static void apply_wqattrs_unlock(void) a0111cf6710bd1 Lai Jiangshan 2015-05-19 4422 { a0111cf6710bd1 Lai Jiangshan 2015-05-19 4423 mutex_unlock(&wq_pool_mutex); ffd8bea81fbb5a Sebastian Andrzej Siewior 2021-08-03 4424 cpus_read_unlock(); a0111cf6710bd1 Lai Jiangshan 2015-05-19 4425 } a0111cf6710bd1 Lai Jiangshan 2015-05-19 4426 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
