tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a662a03b9d1d5b93551f9c0f9c2875373b223115 commit: 6eb07f9925a906d81f328c808ba25f7800888dce [2490/2572] sched: Introduce smart grid scheduling strategy for cfs config: arm64-randconfig-004-20240124 (https://download.01.org/0day-ci/archive/20240124/202401241028.WtP2GPxu-lkp@i...) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240124/202401241028.WtP2GPxu-lkp@i...) 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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401241028.WtP2GPxu-lkp@intel.com/ All errors (new ones prefixed by >>):

...

kernel/sched/core.c:9719:2: error: call to undeclared function 'tg_update_affinity_domains'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 9719 | tg_update_affinity_domains(cpu, 1); | ^ kernel/sched/core.c:9719:2: note: did you mean 'irq_update_affinity_hint'? include/linux/interrupt.h:325:1: note: 'irq_update_affinity_hint' declared here 325 | irq_update_affinity_hint(unsigned int irq, const struct cpumask *m) | ^ kernel/sched/core.c:9809:2: error: call to undeclared function 'tg_update_affinity_domains'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 9809 | tg_update_affinity_domains(cpu, 0); | ^ kernel/sched/core.c:9931:2: error: call to undeclared function 'init_auto_affinity'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 9931 | init_auto_affinity(&root_task_group); | ^ kernel/sched/core.c:9931:2: note: did you mean 'irq_set_affinity'? include/linux/interrupt.h:308:12: note: 'irq_set_affinity' declared here 308 | extern int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask); | ^ kernel/sched/core.c:9931:22: error: use of undeclared identifier 'root_task_group'; did you mean 'task_group'? 9931 | init_auto_affinity(&root_task_group); | ^~~~~~~~~~~~~~~ | task_group kernel/sched/sched.h:2140:34: note: 'task_group' declared here 2140 | static inline struct task_group *task_group(struct task_struct *p) | ^ 4 errors generated.

vim +/tg_update_affinity_domains +9719 kernel/sched/core.c 9699 9700 int sched_cpu_activate(unsigned int cpu) 9701 { 9702 struct rq *rq = cpu_rq(cpu); 9703 struct rq_flags rf; 9704 9705 /* 9706 * Clear the balance_push callback and prepare to schedule 9707 * regular tasks. 9708 */ 9709 balance_push_set(cpu, false); 9710 9711 #ifdef CONFIG_SCHED_SMT 9712 /* 9713 * When going up, increment the number of cores with SMT present. 9714 */ 9715 if (cpumask_weight(cpu_smt_mask(cpu)) == 2) 9716 static_branch_inc_cpuslocked(&sched_smt_present); 9717 #endif 9718 set_cpu_active(cpu, true);

9719 tg_update_affinity_domains(cpu, 1); 9720 9721 if (sched_smp_initialized) { 9722 sched_update_numa(cpu, true); 9723 sched_domains_numa_masks_set(cpu); 9724 cpuset_cpu_active(); 9725 } 9726 9727 /* 9728 * Put the rq online, if not already. This happens: 9729 * 9730 * 1) In the early boot process, because we build the real domains 9731 * after all CPUs have been brought up. 9732 * 9733 * 2) At runtime, if cpuset_cpu_active() fails to rebuild the 9734 * domains. 9735 */ 9736 rq_lock_irqsave(rq, &rf); 9737 if (rq->rd) { 9738 BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span)); 9739 set_rq_online(rq); 9740 } 9741 rq_unlock_irqrestore(rq, &rf); 9742 9743 return 0; 9744 } 9745

-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki