[kbuild-all] [zen-kernel-zen-kernel:5.14/prjc 1/209] kernel/sched/alt_core.c:5653:23: warning: variable 'preempt_disable_ip' set but not used

tree: https://github.com/zen-kernel/zen-kernel 5.14/prjc head: d549588e3d79002f0c4b567b49644318af78a3db commit: f746b5817d3274fa4f458f87f6b452e7304b1d64 [1/209] Project C v5.7.5-r2 config: nios2-allyesconfig (attached as .config) compiler: nios2-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/f746b5817d3274fa4f458f87f... git remote add zen-kernel-zen-kernel https://github.com/zen-kernel/zen-kernel git fetch --no-tags zen-kernel-zen-kernel 5.14/prjc git checkout f746b5817d3274fa4f458f87f6b452e7304b1d64 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=nios2 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 >>): | MAX_RT_PRIO kernel/sched/alt_core.c:4031:46: 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:4749:13: error: redefinition of '_cond_resched' 4749 | int __sched _cond_resched(void) | ^~~~~~~~~~~~~ In file included from kernel/sched/alt_sched.h:4, from kernel/sched/sched.h:6, from kernel/sched/alt_core.c:14: include/linux/sched.h:1948:19: note: previous definition of '_cond_resched' with type 'int(void)' 1948 | static inline int _cond_resched(void) | ^~~~~~~~~~~~~ kernel/sched/alt_core.c: In function '__do_sys_sched_get_priority_max': kernel/sched/alt_core.c:4902:23: error: 'MAX_USER_RT_PRIO' undeclared (first use in this function); did you mean 'MAX_RT_PRIO'? 4902 | ret = MAX_USER_RT_PRIO-1; | ^~~~~~~~~~~~~~~~ | MAX_RT_PRIO kernel/sched/alt_core.c: In function 'sched_show_task': kernel/sched/alt_core.c:5010:16: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 5010 | if (p->state == TASK_RUNNING) | ^~~~~ | __state kernel/sched/alt_core.c:5025:9: error: too few arguments to function 'show_stack' 5025 | show_stack(p, NULL); | ^~~~~~~~~~ In file included from kernel/sched/alt_sched.h:9, from kernel/sched/sched.h:6, from kernel/sched/alt_core.c:14: include/linux/sched/debug.h:33:13: note: declared here 33 | extern void show_stack(struct task_struct *task, unsigned long *sp, | ^~~~~~~~~~ kernel/sched/alt_core.c: In function 'state_filter_match': kernel/sched/alt_core.c:5038:18: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 5038 | if (!(p->state & state_filter)) | ^~~~~ | __state kernel/sched/alt_core.c:5045:56: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 5045 | if (state_filter == TASK_UNINTERRUPTIBLE && p->state == TASK_IDLE) | ^~~~~ | __state kernel/sched/alt_core.c: At top level: kernel/sched/alt_core.c:5052:6: error: conflicting types for 'show_state_filter'; have 'void(long unsigned int)' 5052 | 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:14: 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:5118:15: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 5118 | idle->state = TASK_RUNNING; | ^~~~~ | __state In file included from include/asm-generic/bug.h:7, from ./arch/nios2/include/generated/asm/bug.h:1, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from include/asm-generic/current.h:5, from ./arch/nios2/include/generated/asm/current.h:1, from include/linux/sched.h:12, from kernel/sched/alt_sched.h:4, from kernel/sched/sched.h:6, from kernel/sched/alt_core.c:14: kernel/sched/alt_core.c: In function '__might_sleep': kernel/sched/alt_core.c:5637:28: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 5637 | WARN_ONCE(current->state != TASK_RUNNING && current->task_state_change, | ^~~~~ 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:5637:9: note: in expansion of macro 'WARN_ONCE' 5637 | WARN_ONCE(current->state != TASK_RUNNING && current->task_state_change, | ^~~~~~~~~ In file included from ./arch/nios2/include/generated/asm/bug.h:1, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from include/asm-generic/current.h:5, from ./arch/nios2/include/generated/asm/current.h:1, from include/linux/sched.h:12, from kernel/sched/alt_sched.h:4, from kernel/sched/sched.h:6, from kernel/sched/alt_core.c:14: kernel/sched/alt_core.c:5640:34: error: 'struct task_struct' has no member named 'state'; did you mean '__state'? 5640 | current->state, | ^~~~~ include/asm-generic/bug.h:91:62: note: in definition of macro '__WARN_printf' 91 | warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \ | ^~~ include/linux/once_lite.h:19:25: note: in expansion of macro 'WARN' 19 | func(__VA_ARGS__); \ | ^~~~ include/asm-generic/bug.h:150:9: note: in expansion of macro 'DO_ONCE_LITE_IF' 150 | DO_ONCE_LITE_IF(condition, WARN, 1, format) | ^~~~~~~~~~~~~~~ kernel/sched/alt_core.c:5637:9: note: in expansion of macro 'WARN_ONCE' 5637 | WARN_ONCE(current->state != TASK_RUNNING && current->task_state_change, | ^~~~~~~~~ kernel/sched/alt_core.c: In function '___might_sleep': 5653 | unsigned long preempt_disable_ip; | ^~~~~~~~~~~~~~~~~~ kernel/sched/alt_core.c: At top level: kernel/sched/alt_core.c:5813:20: warning: no previous prototype for 'sched_create_group' [-Wmissing-prototypes] 5813 | struct task_group *sched_create_group(struct task_group *parent) | ^~~~~~~~~~~~~~~~~~ kernel/sched/alt_core.c:5824:6: warning: no previous prototype for 'sched_online_group' [-Wmissing-prototypes] 5824 | void sched_online_group(struct task_group *tg, struct task_group *parent) | ^~~~~~~~~~~~~~~~~~ kernel/sched/alt_core.c:5835:6: warning: no previous prototype for 'sched_destroy_group' [-Wmissing-prototypes] 5835 | void sched_destroy_group(struct task_group *tg) | ^~~~~~~~~~~~~~~~~~~ kernel/sched/alt_core.c:5841:6: warning: no previous prototype for 'sched_offline_group' [-Wmissing-prototypes] 5841 | void sched_offline_group(struct task_group *tg) | ^~~~~~~~~~~~~~~~~~~ kernel/sched/alt_core.c:5933:27: warning: initialized field overwritten [-Woverride-init] 5933 | .legacy_cftypes = cpu_legacy_files, | ^~~~~~~~~~~~~~~~ kernel/sched/alt_core.c:5933:27: note: (near initialization for 'cpu_cgrp_subsys.legacy_cftypes') kernel/sched/alt_core.c:142:18: warning: 'sched_sg_idle_mask' defined but not used [-Wunused-variable] 142 | static cpumask_t sched_sg_idle_mask ____cacheline_aligned_in_smp; | ^~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/preempt_disable_ip +5653 kernel/sched/alt_core.c 5647 5648 void ___might_sleep(const char *file, int line, int preempt_offset) 5649 { 5650 /* Ratelimiting timestamp: */ 5651 static unsigned long prev_jiffy; 5652 5654 5655 /* WARN_ON_ONCE() by default, no rate limit required: */ 5656 rcu_sleep_check(); 5657 5658 if ((preempt_count_equals(preempt_offset) && !irqs_disabled() && 5659 !is_idle_task(current) && !current->non_block_count) || 5660 system_state == SYSTEM_BOOTING || system_state > SYSTEM_RUNNING || 5661 oops_in_progress) 5662 return; 5663 if (time_before(jiffies, prev_jiffy + HZ) && prev_jiffy) 5664 return; 5665 prev_jiffy = jiffies; 5666 5667 /* Save this before calling printk(), since that will clobber it: */ 5668 preempt_disable_ip = get_preempt_disable_ip(current); 5669 5670 printk(KERN_ERR 5671 "BUG: sleeping function called from invalid context at %s:%d\n", 5672 file, line); 5673 printk(KERN_ERR 5674 "in_atomic(): %d, irqs_disabled(): %d, non_block: %d, pid: %d, name: %s\n", 5675 in_atomic(), irqs_disabled(), current->non_block_count, 5676 current->pid, current->comm); 5677 5678 if (task_stack_end_corrupted(current)) 5679 printk(KERN_EMERG "Thread overran stack, or stack corrupted\n"); 5680 5681 debug_show_held_locks(current); 5682 if (irqs_disabled()) 5683 print_irqtrace_events(current); 5684 #ifdef CONFIG_DEBUG_PREEMPT 5685 if (!preempt_count_equals(preempt_offset)) { 5686 pr_err("Preemption disabled at:"); 5687 print_ip_sym(preempt_disable_ip); 5688 pr_cont("\n"); 5689 } 5690 #endif 5691 dump_stack(); 5692 add_taint(TAINT_WARN, LOCKDEP_STILL_OK); 5693 } 5694 EXPORT_SYMBOL(___might_sleep); 5695 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org