Hi Thomas, I love your patch! Yet something to improve: [auto build test ERROR on tip/sched/core] [also build test ERROR on tip/master linux/master linus/master v5.9-rc5 next-20200918] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Thomas-Gleixner/sched-Migrate-di... base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 848785df48835eefebe0c4eb5da7690690b0a8b7 config: sh-rsk7264_defconfig (attached as .config) compiler: sh4-linux-gcc (GCC) 9.3.0 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sh 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 >>): cc1: warning: arch/sh/include/mach-rsk: No such file or directory [-Wmissing-include-dirs] cc1: warning: arch/sh/include/mach-rsk: No such file or directory [-Wmissing-include-dirs] In file included from arch/sh/include/asm/bug.h:112, from include/linux/bug.h:5, from include/linux/thread_info.h:12, from include/asm-generic/current.h:5, from ./arch/sh/include/generated/asm/current.h:1, from include/linux/sched.h:12, from include/linux/sched/numa_balancing.h:10, from include/trace/events/sched.h:8, from kernel/sched/core.c:10: kernel/sched/sched.h: In function 'rq_pin_lock': 1224 | SCHED_WARN_ON(rq->balance_callback); | ^~ include/asm-generic/bug.h:157:27: note: in definition of macro 'WARN_ONCE' 157 | int __ret_warn_once = !!(condition); \ | ^~~~~~~~~ kernel/sched/sched.h:1224:2: note: in expansion of macro 'SCHED_WARN_ON' 1224 | SCHED_WARN_ON(rq->balance_callback); | ^~~~~~~~~~~~~ -- cc1: warning: arch/sh/include/mach-rsk: No such file or directory [-Wmissing-include-dirs] cc1: warning: arch/sh/include/mach-rsk: No such file or directory [-Wmissing-include-dirs] In file included from arch/sh/include/asm/bug.h:112, from include/linux/bug.h:5, from include/linux/thread_info.h:12, from include/asm-generic/current.h:5, from ./arch/sh/include/generated/asm/current.h:1, from include/linux/sched.h:12, from kernel/sched/sched.h:5, from kernel/sched/fair.c:23: kernel/sched/sched.h: In function 'rq_pin_lock': 1224 | SCHED_WARN_ON(rq->balance_callback); | ^~ include/asm-generic/bug.h:157:27: note: in definition of macro 'WARN_ONCE' 157 | int __ret_warn_once = !!(condition); \ | ^~~~~~~~~ kernel/sched/sched.h:1224:2: note: in expansion of macro 'SCHED_WARN_ON' 1224 | SCHED_WARN_ON(rq->balance_callback); | ^~~~~~~~~~~~~ kernel/sched/fair.c: At top level: kernel/sched/fair.c:5364:6: warning: no previous prototype for 'init_cfs_bandwidth' [-Wmissing-prototypes] 5364 | void init_cfs_bandwidth(struct cfs_bandwidth *cfs_b) {} | ^~~~~~~~~~~~~~~~~~ kernel/sched/fair.c:11113:6: warning: no previous prototype for 'free_fair_sched_group' [-Wmissing-prototypes] 11113 | void free_fair_sched_group(struct task_group *tg) { } | ^~~~~~~~~~~~~~~~~~~~~ kernel/sched/fair.c:11115:5: warning: no previous prototype for 'alloc_fair_sched_group' [-Wmissing-prototypes] 11115 | int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/sched/fair.c:11120:6: warning: no previous prototype for 'online_fair_sched_group' [-Wmissing-prototypes] 11120 | void online_fair_sched_group(struct task_group *tg) { } | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/fair.c:11122:6: warning: no previous prototype for 'unregister_fair_sched_group' [-Wmissing-prototypes] 11122 | void unregister_fair_sched_group(struct task_group *tg) { } | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ -- cc1: warning: arch/sh/include/mach-rsk: No such file or directory [-Wmissing-include-dirs] cc1: warning: arch/sh/include/mach-rsk: No such file or directory [-Wmissing-include-dirs] In file included from arch/sh/include/asm/bug.h:112, from include/linux/bug.h:5, from include/linux/thread_info.h:12, from include/asm-generic/current.h:5, from ./arch/sh/include/generated/asm/current.h:1, from include/linux/sched.h:12, from kernel/sched/sched.h:5, from kernel/sched/rt.c:6: kernel/sched/sched.h: In function 'rq_pin_lock': 1224 | SCHED_WARN_ON(rq->balance_callback); | ^~ include/asm-generic/bug.h:157:27: note: in definition of macro 'WARN_ONCE' 157 | int __ret_warn_once = !!(condition); \ | ^~~~~~~~~ kernel/sched/sched.h:1224:2: note: in expansion of macro 'SCHED_WARN_ON' 1224 | SCHED_WARN_ON(rq->balance_callback); | ^~~~~~~~~~~~~ kernel/sched/rt.c: At top level: kernel/sched/rt.c:253:6: warning: no previous prototype for 'free_rt_sched_group' [-Wmissing-prototypes] 253 | void free_rt_sched_group(struct task_group *tg) { } | ^~~~~~~~~~~~~~~~~~~ kernel/sched/rt.c:255:5: warning: no previous prototype for 'alloc_rt_sched_group' [-Wmissing-prototypes] 255 | int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent) | ^~~~~~~~~~~~~~~~~~~~ kernel/sched/rt.c:668:6: warning: no previous prototype for 'sched_rt_bandwidth_account' [-Wmissing-prototypes] 668 | bool sched_rt_bandwidth_account(struct rt_rq *rt_rq) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ # https://github.com/0day-ci/linux/commit/f1fee7de063e0f3f8b3b418491cde1317... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Thomas-Gleixner/sched-Migrate-disable-support-for-RT/20200917-185532 git checkout f1fee7de063e0f3f8b3b418491cde13178356a82 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