tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/wip-freezer head: 9ddb4cc740408e85babad7482f50e1b4d2490759 commit: 83d18804b7330928d3176cd76939cf558581e092 [1/3] freezer: Have {,un}lock_system_sleep() save/restore flags config: openrisc-randconfig-r013-20210613 (attached as .config) compiler: or1k-linux-gcc (GCC) 9.3.0 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://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?... git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git git fetch --no-tags peterz-queue sched/wip-freezer git checkout 83d18804b7330928d3176cd76939cf558581e092 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=openrisc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from init/do_mounts.c:7: include/linux/suspend.h: In function 'unlock_system_sleep': 546 | static inline void unlock_system_sleep(unsigned int) {} | ^~~~~~~~~~~~ -- In file included from kernel/sched/sched.h:65, from kernel/sched/core.c:13: include/linux/suspend.h: In function 'unlock_system_sleep': 546 | static inline void unlock_system_sleep(unsigned int) {} | ^~~~~~~~~~~~ kernel/sched/core.c: In function 'ttwu_stat': kernel/sched/core.c:3282:13: warning: variable 'rq' set but not used [-Wunused-but-set-variable] 3282 | struct rq *rq; | ^~ -- In file included from kernel/sched/sched.h:65, from kernel/sched/fair.c:23: include/linux/suspend.h: In function 'unlock_system_sleep': 546 | static inline void unlock_system_sleep(unsigned int) {} | ^~~~~~~~~~~~ kernel/sched/fair.c: At top level: kernel/sched/fair.c:591:5: warning: no previous prototype for 'sched_update_scaling' [-Wmissing-prototypes] 591 | int sched_update_scaling(void) | ^~~~~~~~~~~~~~~~~~~~ -- In file included from kernel/sched/sched.h:65, from kernel/sched/rt.c:6: include/linux/suspend.h: In function 'unlock_system_sleep': 546 | static inline void unlock_system_sleep(unsigned int) {} | ^~~~~~~~~~~~ kernel/sched/rt.c: At top level: kernel/sched/rt.c:669:6: warning: no previous prototype for 'sched_rt_bandwidth_account' [-Wmissing-prototypes] 669 | bool sched_rt_bandwidth_account(struct rt_rq *rt_rq) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ vim +546 include/linux/suspend.h 544 545 static inline unsigned int lock_system_sleep(void) { return 0; } 547 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org