Hi Thara, Thank you for the patch! Yet something to improve: [auto build test ERROR on next-20200110] [also build test ERROR on v5.5-rc5] [cannot apply to tip/sched/core tip/perf/core arm/for-next arm64/for-next/core driver-core/driver-core-testing linus/master v5.5-rc5 v5.5-rc4 v5.5-rc3] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Thara-Gopinath/Introduce-Thermal-Pressure/20200112-000559 base: 6c09d7dbb7d366122d0218bc7487e0a1e6cca6ed config: sh-randconfig-a001-20200112 (attached as .config) compiler: sh4-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=sh If you fix the issue, kindly add following tag Reported-by: kbuild test robot All errors (new ones prefixed by >>): kernel/sched/fair.c: In function 'task_tick_fair': >> kernel/sched/fair.c:10308:2: error: implicit declaration of function 'update_thermal_load_avg'; did you mean 'update_thermal_rq_load_avg'? [-Werror=implicit-function-declaration] update_thermal_load_avg(rq_clock_task(rq), rq, thermal_pressure); ^~~~~~~~~~~~~~~~~~~~~~~ update_thermal_rq_load_avg cc1: some warnings being treated as errors vim +10308 kernel/sched/fair.c 10283 10284 /* 10285 * scheduler tick hitting a task of our scheduling class. 10286 * 10287 * NOTE: This function can be called remotely by the tick offload that 10288 * goes along full dynticks. Therefore no local assumption can be made 10289 * and everything must be accessed through the @rq and @curr passed in 10290 * parameters. 10291 */ 10292 static void task_tick_fair(struct rq *rq, struct task_struct *curr, int queued) 10293 { 10294 struct cfs_rq *cfs_rq; 10295 struct sched_entity *se = &curr->se; 10296 unsigned long thermal_pressure = arch_cpu_thermal_pressure(cpu_of(rq)); 10297 10298 for_each_sched_entity(se) { 10299 cfs_rq = cfs_rq_of(se); 10300 entity_tick(cfs_rq, se, queued); 10301 } 10302 10303 if (static_branch_unlikely(&sched_numa_balancing)) 10304 task_tick_numa(rq, curr); 10305 10306 update_misfit_status(curr, rq); 10307 update_overutilized_status(task_rq(curr)); 10308 update_thermal_load_avg(rq_clock_task(rq), rq, thermal_pressure); 10309 } 10310 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation