[kbuild-all] [peterz-queue:sched/core 1/3] kernel/sched/sched.h:1224:20: error: no member named 'balance_callback' in 'struct rq'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/core head: 560d2f906d7e7d006e5a4e0eafee8fcbc08830c5 commit: 048fdc63c8cd7e02182aea366a37e9b7665277f5 [1/3] sched: Fix balance_callback() config: mips-randconfig-r005-20200909 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 0a5dc7effb191eff740e0e7ae7bd8e1f6bdb3ad9) 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 # install mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu git checkout 048fdc63c8cd7e02182aea366a37e9b7665277f5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang 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 errors (new ones prefixed by >>): In file included from kernel/sched/swait.c:5: SCHED_WARN_ON(rq->balance_callback); ~~ ^ kernel/sched/sched.h:82:37: note: expanded from macro 'SCHED_WARN_ON' # define SCHED_WARN_ON(x) WARN_ONCE(x, #x) ^ include/asm-generic/bug.h:157:27: note: expanded from macro 'WARN_ONCE' int __ret_warn_once = !!(condition); \ ^~~~~~~~~ 1 error generated. -- In file included from kernel/sched/core.c:13: SCHED_WARN_ON(rq->balance_callback); ~~ ^ kernel/sched/sched.h:82:37: note: expanded from macro 'SCHED_WARN_ON' # define SCHED_WARN_ON(x) WARN_ONCE(x, #x) ^ include/asm-generic/bug.h:157:27: note: expanded from macro 'WARN_ONCE' int __ret_warn_once = !!(condition); \ ^~~~~~~~~ kernel/sched/core.c:4660:35: warning: no previous prototype for function 'schedule_user' [-Wmissing-prototypes] asmlinkage __visible void __sched schedule_user(void) ^ kernel/sched/core.c:4660:22: note: declare 'static' if the function is not intended to be used outside of this translation unit asmlinkage __visible void __sched schedule_user(void) ^ static head = splice_balance_callbacks(rq); ^ kernel/sched/core.c:5483:9: note: did you mean '__balance_callbacks'? kernel/sched/core.c:3540:20: note: '__balance_callbacks' declared here static inline void __balance_callbacks(struct rq *rq) ^ kernel/sched/core.c:5483:7: warning: incompatible integer to pointer conversion assigning to 'struct callback_head *' from 'int' [-Wint-conversion] head = splice_balance_callbacks(rq); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2 warnings and 2 errors generated. -- In file included from kernel/sched/fair.c:23: SCHED_WARN_ON(rq->balance_callback); ~~ ^ kernel/sched/sched.h:82:37: note: expanded from macro 'SCHED_WARN_ON' # define SCHED_WARN_ON(x) WARN_ONCE(x, #x) ^ include/asm-generic/bug.h:157:27: note: expanded from macro 'WARN_ONCE' int __ret_warn_once = !!(condition); \ ^~~~~~~~~ kernel/sched/fair.c:5364:6: warning: no previous prototype for function 'init_cfs_bandwidth' [-Wmissing-prototypes] void init_cfs_bandwidth(struct cfs_bandwidth *cfs_b) {} ^ kernel/sched/fair.c:5364:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void init_cfs_bandwidth(struct cfs_bandwidth *cfs_b) {} ^ static kernel/sched/fair.c:11113:6: warning: no previous prototype for function 'free_fair_sched_group' [-Wmissing-prototypes] void free_fair_sched_group(struct task_group *tg) { } ^ kernel/sched/fair.c:11113:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void free_fair_sched_group(struct task_group *tg) { } ^ static kernel/sched/fair.c:11115:5: warning: no previous prototype for function 'alloc_fair_sched_group' [-Wmissing-prototypes] int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent) ^ kernel/sched/fair.c:11115:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent) ^ static kernel/sched/fair.c:11120:6: warning: no previous prototype for function 'online_fair_sched_group' [-Wmissing-prototypes] void online_fair_sched_group(struct task_group *tg) { } ^ kernel/sched/fair.c:11120:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void online_fair_sched_group(struct task_group *tg) { } ^ static kernel/sched/fair.c:11122:6: warning: no previous prototype for function 'unregister_fair_sched_group' [-Wmissing-prototypes] void unregister_fair_sched_group(struct task_group *tg) { } ^ kernel/sched/fair.c:11122:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void unregister_fair_sched_group(struct task_group *tg) { } ^ static 5 warnings and 1 error generated. -- In file included from kernel/sched/rt.c:6: SCHED_WARN_ON(rq->balance_callback); ~~ ^ kernel/sched/sched.h:82:37: note: expanded from macro 'SCHED_WARN_ON' # define SCHED_WARN_ON(x) WARN_ONCE(x, #x) ^ include/asm-generic/bug.h:157:27: note: expanded from macro 'WARN_ONCE' int __ret_warn_once = !!(condition); \ ^~~~~~~~~ kernel/sched/rt.c:253:6: warning: no previous prototype for function 'free_rt_sched_group' [-Wmissing-prototypes] void free_rt_sched_group(struct task_group *tg) { } ^ kernel/sched/rt.c:253:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void free_rt_sched_group(struct task_group *tg) { } ^ static kernel/sched/rt.c:255:5: warning: no previous prototype for function 'alloc_rt_sched_group' [-Wmissing-prototypes] int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent) ^ kernel/sched/rt.c:255:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent) ^ static kernel/sched/rt.c:668:6: warning: no previous prototype for function 'sched_rt_bandwidth_account' [-Wmissing-prototypes] bool sched_rt_bandwidth_account(struct rt_rq *rt_rq) ^ kernel/sched/rt.c:668:1: note: declare 'static' if the function is not intended to be used outside of this translation unit bool sched_rt_bandwidth_account(struct rt_rq *rt_rq) ^ static 3 warnings and 1 error generated. # https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?... git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git git fetch --no-tags peterz-queue sched/core git checkout 048fdc63c8cd7e02182aea366a37e9b7665277f5 vim +1224 kernel/sched/sched.h 1205 1206 /* 1207 * Lockdep annotation that avoids accidental unlocks; it's like a 1208 * sticky/continuous lockdep_assert_held(). 1209 * 1210 * This avoids code that has access to 'struct rq *rq' (basically everything in 1211 * the scheduler) from accidentally unlocking the rq if they do not also have a 1212 * copy of the (on-stack) 'struct rq_flags rf'. 1213 * 1214 * Also see Documentation/locking/lockdep-design.rst. 1215 */ 1216 static inline void rq_pin_lock(struct rq *rq, struct rq_flags *rf) 1217 { 1218 rf->cookie = lockdep_pin_lock(&rq->lock); 1219 1220 #ifdef CONFIG_SCHED_DEBUG 1221 rq->clock_update_flags &= (RQCF_REQ_SKIP|RQCF_ACT_SKIP); 1222 rf->clock_update_flags = 0; 1223 1225 #endif 1226 } 1227 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org