[kbuild-all] [zen:5.14/prjc 93/209] kernel/sched/alt_core.c:5867:5: warning: no previous prototype for 'sched_cpu_wait_empty'

tree: https://github.com/zen-kernel/zen-kernel 5.14/prjc head: d549588e3d79002f0c4b567b49644318af78a3db commit: 0ffe7639e645a6c63351dadeaaf22fef46cbbb40 [93/209] sched/alt: Sync up missing new interfaces. config: mips-allyesconfig (attached as .config) compiler: mips-linux-gcc (GCC) 11.2.0 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://github.com/zen-kernel/zen-kernel/commit/0ffe7639e645a6c63351dadea... git remote add zen https://github.com/zen-kernel/zen-kernel git fetch --no-tags zen 5.14/prjc git checkout 0ffe7639e645a6c63351dadeaaf22fef46cbbb40 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): kernel/sched/alt_core.c:3726:28: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 3726 | prev_state = prev->state; | ^~~~~ | __state kernel/sched/alt_core.c:3727:59: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 3727 | if (!preempt && prev_state && prev_state == prev->state) { | ^~~~~ | __state kernel/sched/alt_core.c:3729:31: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 3729 | prev->state = TASK_RUNNING; | ^~~~~ | __state kernel/sched/alt_core.c: In function 'sched_submit_work': kernel/sched/alt_core.c:3828:19: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 3828 | if (!tsk->state) | ^~~~~ | __state In file included from include/asm-generic/bug.h:7, from arch/mips/include/asm/bug.h:42, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from include/asm-generic/current.h:5, from ./arch/mips/include/generated/asm/current.h:1, from include/linux/sched.h:12, from include/linux/kthread.h:6, from include/trace/events/sched.h:8, from kernel/sched/alt_core.c:15: kernel/sched/alt_core.c: In function 'schedule_idle': kernel/sched/alt_core.c:3903:31: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 3903 | WARN_ON_ONCE(current->state); | ^~~~~ include/linux/once_lite.h:15:41: note: in definition of macro 'DO_ONCE_LITE_IF' 15 | bool __ret_do_once = !!(condition); \ | ^~~~~~~~~ kernel/sched/alt_core.c:3903:9: note: in expansion of macro 'WARN_ON_ONCE' 3903 | WARN_ON_ONCE(current->state); | ^~~~~~~~~~~~ kernel/sched/alt_core.c: In function '__sched_setscheduler': kernel/sched/alt_core.c:4425:46: error: 'MAX_USER_RT_PRIO' undeclared (first use in this function); did you mean 'MAX_RT_PRIO'? 4425 | (p->mm && attr->sched_priority > MAX_USER_RT_PRIO - 1) || | ^~~~~~~~~~~~~~~~ | MAX_RT_PRIO kernel/sched/alt_core.c:4425:46: note: each undeclared identifier is reported only once for each function it appears in kernel/sched/alt_core.c: At top level: kernel/sched/alt_core.c:5183:13: error: redefinition of '_cond_resched' 5183 | int __sched _cond_resched(void) | ^~~~~~~~~~~~~ In file included from include/linux/kthread.h:6, from include/trace/events/sched.h:8, from kernel/sched/alt_core.c:15: include/linux/sched.h:1957:19: note: previous definition of '_cond_resched' with type 'int(void)' 1957 | static inline int _cond_resched(void) | ^~~~~~~~~~~~~ kernel/sched/alt_core.c: In function '__do_sys_sched_get_priority_max': kernel/sched/alt_core.c:5336:23: error: 'MAX_USER_RT_PRIO' undeclared (first use in this function); did you mean 'MAX_RT_PRIO'? 5336 | ret = MAX_USER_RT_PRIO-1; | ^~~~~~~~~~~~~~~~ | MAX_RT_PRIO kernel/sched/alt_core.c: In function 'sched_show_task': kernel/sched/alt_core.c:5446:16: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 5446 | if (p->state == TASK_RUNNING) | ^~~~~ | __state kernel/sched/alt_core.c: In function 'state_filter_match': kernel/sched/alt_core.c:5475:18: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 5475 | if (!(p->state & state_filter)) | ^~~~~ | __state kernel/sched/alt_core.c:5482:56: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 5482 | if (state_filter == TASK_UNINTERRUPTIBLE && p->state == TASK_IDLE) | ^~~~~ | __state kernel/sched/alt_core.c: At top level: kernel/sched/alt_core.c:5489:6: error: conflicting types for 'show_state_filter'; have 'void(long unsigned int)' 5489 | void show_state_filter(unsigned long state_filter) | ^~~~~~~~~~~~~~~~~ In file included from kernel/sched/alt_sched.h:9, from kernel/sched/sched.h:6, from kernel/sched/alt_core.c:18: include/linux/sched/debug.h:17:13: note: previous declaration of 'show_state_filter' with type 'void(unsigned int)' 17 | extern void show_state_filter(unsigned int state_filter); | ^~~~~~~~~~~~~~~~~ kernel/sched/alt_core.c: In function 'init_idle': kernel/sched/alt_core.c:5548:15: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 5548 | idle->state = TASK_RUNNING; | ^~~~~ | __state kernel/sched/alt_core.c: At top level: kernel/sched/alt_core.c:5622:6: warning: no previous prototype for 'idle_task_exit' [-Wmissing-prototypes] 5622 | void idle_task_exit(void) | ^~~~~~~~~~~~~~ kernel/sched/alt_core.c:5771:5: warning: no previous prototype for 'sched_cpu_activate' [-Wmissing-prototypes] 5771 | int sched_cpu_activate(unsigned int cpu) | ^~~~~~~~~~~~~~~~~~ kernel/sched/alt_core.c:5804:5: warning: no previous prototype for 'sched_cpu_deactivate' [-Wmissing-prototypes] 5804 | int sched_cpu_deactivate(unsigned int cpu) | ^~~~~~~~~~~~~~~~~~~~ kernel/sched/alt_core.c:5847:5: warning: no previous prototype for 'sched_cpu_starting' [-Wmissing-prototypes] 5847 | int sched_cpu_starting(unsigned int cpu) | ^~~~~~~~~~~~~~~~~~ 5867 | int sched_cpu_wait_empty(unsigned int cpu) | ^~~~~~~~~~~~~~~~~~~~ kernel/sched/alt_core.c:5872:5: warning: no previous prototype for 'sched_cpu_dying' [-Wmissing-prototypes] 5872 | int sched_cpu_dying(unsigned int cpu) | ^~~~~~~~~~~~~~~ kernel/sched/alt_core.c: In function 'sched_init_topology_cpumask': kernel/sched/alt_core.c:5941:57: error: implicit declaration of function 'cpu_coregroup_mask' [-Werror=implicit-function-declaration] 5941 | per_cpu(sd_llc_id, cpu) = cpumask_first(cpu_coregroup_mask(cpu)); | ^~~~~~~~~~~~~~~~~~ kernel/sched/alt_core.c:5941:57: warning: passing argument 1 of 'cpumask_first' makes pointer from integer without a cast [-Wint-conversion] 5941 | per_cpu(sd_llc_id, cpu) = cpumask_first(cpu_coregroup_mask(cpu)); | ^~~~~~~~~~~~~~~~~~~~~~~ | | | int In file included from arch/mips/include/asm/processor.h:15, from arch/mips/include/asm/thread_info.h:16, from include/linux/thread_info.h:60, from include/asm-generic/current.h:5, from ./arch/mips/include/generated/asm/current.h:1, from include/linux/sched.h:12, from include/linux/kthread.h:6, from include/trace/events/sched.h:8, from kernel/sched/alt_core.c:15: include/linux/cpumask.h:193:64: note: expected 'const struct cpumask *' but argument is of type 'int' 193 | static inline unsigned int cpumask_first(const struct cpumask *srcp) | ~~~~~~~~~~~~~~~~~~~~~~^~~~ kernel/sched/alt_core.c:5943:45: warning: passing argument 3 of 'cpumask_and' makes pointer from integer without a cast [-Wint-conversion] 5943 | TOPOLOGY_CPUMASK(coregroup, cpu_coregroup_mask(cpu), false); | ^~~~~~~~~~~~~~~~~~~~~~~ | | | int kernel/sched/alt_core.c:5917:35: note: in definition of macro 'TOPOLOGY_CPUMASK' 5917 | if (cpumask_and(chk, chk, mask)) { \ | ^~~~ In file included from arch/mips/include/asm/processor.h:15, from arch/mips/include/asm/thread_info.h:16, from include/linux/thread_info.h:60, from include/asm-generic/current.h:5, from ./arch/mips/include/generated/asm/current.h:1, from include/linux/sched.h:12, from include/linux/kthread.h:6, from include/trace/events/sched.h:8, from kernel/sched/alt_core.c:15: include/linux/cpumask.h:403:54: note: expected 'const struct cpumask *' but argument is of type 'int' 403 | const struct cpumask *src2p) | ~~~~~~~~~~~~~~~~~~~~~~^~~~~ kernel/sched/alt_core.c:5943:45: warning: passing argument 2 of 'cpumask_copy' makes pointer from integer without a cast [-Wint-conversion] 5943 | TOPOLOGY_CPUMASK(coregroup, cpu_coregroup_mask(cpu), false); | ^~~~~~~~~~~~~~~~~~~~~~~ | | | int kernel/sched/alt_core.c:5918:36: note: in definition of macro 'TOPOLOGY_CPUMASK' 5918 | cpumask_copy(topo, mask); \ | ^~~~ In file included from arch/mips/include/asm/processor.h:15, from arch/mips/include/asm/thread_info.h:16, from include/linux/thread_info.h:60, from include/asm-generic/current.h:5, from ./arch/mips/include/generated/asm/current.h:1, from include/linux/sched.h:12, from include/linux/kthread.h:6, from include/trace/events/sched.h:8, from kernel/sched/alt_core.c:15: include/linux/cpumask.h:575:55: note: expected 'const struct cpumask *' but argument is of type 'int' 575 | const struct cpumask *srcp) | ~~~~~~~~~~~~~~~~~~~~~~^~~~ kernel/sched/alt_core.c:5943:45: warning: passing argument 2 of 'cpumask_complement' makes pointer from integer without a cast [-Wint-conversion] 5943 | TOPOLOGY_CPUMASK(coregroup, cpu_coregroup_mask(cpu), false); | ^~~~~~~~~~~~~~~~~~~~~~~ | | | int kernel/sched/alt_core.c:5923:41: note: in definition of macro 'TOPOLOGY_CPUMASK' 5923 | cpumask_complement(chk, mask) | ^~~~ In file included from arch/mips/include/asm/processor.h:15, from arch/mips/include/asm/thread_info.h:16, from include/linux/thread_info.h:60, from include/asm-generic/current.h:5, from ./arch/mips/include/generated/asm/current.h:1, from include/linux/sched.h:12, from include/linux/kthread.h:6, from include/trace/events/sched.h:8, from kernel/sched/alt_core.c:15: include/linux/cpumask.h:458:61: note: expected 'const struct cpumask *' but argument is of type 'int' 458 | const struct cpumask *srcp) | ~~~~~~~~~~~~~~~~~~~~~~^~~~ In file included from include/asm-generic/bug.h:7, from arch/mips/include/asm/bug.h:42, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from include/asm-generic/current.h:5, from ./arch/mips/include/generated/asm/current.h:1, from include/linux/sched.h:12, from include/linux/kthread.h:6, from include/trace/events/sched.h:8, from kernel/sched/alt_core.c:15: kernel/sched/alt_core.c: In function '__might_sleep': kernel/sched/alt_core.c:6101:28: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 6101 | WARN_ONCE(current->state != TASK_RUNNING && current->task_state_change, | ^~~~~ vim +/sched_cpu_wait_empty +5867 kernel/sched/alt_core.c 5770 5772 { 5773 struct rq *rq = cpu_rq(cpu); 5774 unsigned long flags; 5775 5776 #ifdef CONFIG_SCHED_SMT 5777 /* 5778 * When going up, increment the number of cores with SMT present. 5779 */ 5780 if (cpumask_weight(cpu_smt_mask(cpu)) == 2) 5781 static_branch_inc_cpuslocked(&sched_smt_present); 5782 #endif 5783 set_cpu_active(cpu, true); 5784 5785 if (sched_smp_initialized) 5786 cpuset_cpu_active(); 5787 5788 /* 5789 * Put the rq online, if not already. This happens: 5790 * 5791 * 1) In the early boot process, because we build the real domains 5792 * after all cpus have been brought up. 5793 * 5794 * 2) At runtime, if cpuset_cpu_active() fails to rebuild the 5795 * domains. 5796 */ 5797 raw_spin_lock_irqsave(&rq->lock, flags); 5798 set_rq_online(rq); 5799 raw_spin_unlock_irqrestore(&rq->lock, flags); 5800 5801 return 0; 5802 } 5803 5804 int sched_cpu_deactivate(unsigned int cpu) 5805 { 5806 int ret; 5807 5808 set_cpu_active(cpu, false); 5809 /* 5810 * We've cleared cpu_active_mask, wait for all preempt-disabled and RCU 5811 * users of this state to go away such that all new such users will 5812 * observe it. 5813 * 5814 * Do sync before park smpboot threads to take care the rcu boost case. 5815 */ 5816 synchronize_rcu(); 5817 5818 #ifdef CONFIG_SCHED_SMT 5819 /* 5820 * When going down, decrement the number of cores with SMT present. 5821 */ 5822 if (cpumask_weight(cpu_smt_mask(cpu)) == 2) { 5823 static_branch_dec_cpuslocked(&sched_smt_present); 5824 if (!static_branch_likely(&sched_smt_present)) 5825 cpumask_clear(&sched_sg_idle_mask); 5826 } 5827 #endif 5828 5829 if (!sched_smp_initialized) 5830 return 0; 5831 5832 ret = cpuset_cpu_inactive(cpu); 5833 if (ret) { 5834 set_cpu_active(cpu, true); 5835 return ret; 5836 } 5837 return 0; 5838 } 5839 5840 static void sched_rq_cpu_starting(unsigned int cpu) 5841 { 5842 struct rq *rq = cpu_rq(cpu); 5843 5844 rq->calc_load_update = calc_load_update; 5845 } 5846 5847 int sched_cpu_starting(unsigned int cpu) 5848 { 5849 sched_rq_cpu_starting(cpu); 5850 sched_tick_start(cpu); 5851 return 0; 5852 } 5853 5854 #ifdef CONFIG_HOTPLUG_CPU 5855 5856 /* 5857 * Invoked immediately before the stopper thread is invoked to bring the 5858 * CPU down completely. At this point all per CPU kthreads except the 5859 * hotplug thread (current) and the stopper thread (inactive) have been 5860 * either parked or have been unbound from the outgoing CPU. Ensure that 5861 * any of those which might be on the way out are gone. 5862 * 5863 * If after this point a bound task is being woken on this CPU then the 5864 * responsible hotplug callback has failed to do it's job. 5865 * sched_cpu_dying() will catch it with the appropriate fireworks. 5866 */ 5868 { 5869 return 0; 5870 } 5871 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org