[openeuler:OLK-6.6 2490/2572] 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

[kernel test robot <lkp@intel.com>]

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-002-20240124 (https://download.01.org/0day-ci/archive/20240124/202401241115.amp9PdWR-lkp@intel.com/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240124/202401241115.amp9PdWR-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401241115.amp9PdWR-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 [-Werror,-Wimplicit-function-declaration]
           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
   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 [-Werror,-Wimplicit-function-declaration]
           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 [-Werror,-Wimplicit-function-declaration]
           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
   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'?
           init_auto_affinity(&root_task_group);
                               ^~~~~~~~~~~~~~~
                               task_group
   kernel/sched/sched.h:2140:34: note: 'task_group' declared here
   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	

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