tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/core head: f9768f96aa02d96ebce832c1e0a597448f1f4478 commit: f9768f96aa02d96ebce832c1e0a597448f1f4478 [5/5] cpumask/hotplug: Fix cpu_dying() state tracking config: sparc-randconfig-p001-20210420 (attached as .config) compiler: sparc64-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 # 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 f9768f96aa02d96ebce832c1e0a597448f1f4478 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=sparc 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 include/linux/kernel.h:10, from include/linux/sched/mm.h:5, from kernel/cpu.c:6: kernel/cpu.c: In function 'cpuhp_set_state': 475 | if (cpu_dying(cpu) != !bringup) | ^~~ include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ kernel/cpu.c:475:2: note: in expansion of macro 'if' 475 | if (cpu_dying(cpu) != !bringup) | ^~ kernel/cpu.c:475:16: note: each undeclared identifier is reported only once for each function it appears in 475 | if (cpu_dying(cpu) != !bringup) | ^~~ include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ kernel/cpu.c:475:2: note: in expansion of macro 'if' 475 | if (cpu_dying(cpu) != !bringup) | ^~ kernel/cpu.c: In function 'cpuhp_reset_state': kernel/cpu.c:509:16: error: 'cpu' undeclared (first use in this function) 509 | if (cpu_dying(cpu) != !bringup) | ^~~ include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ kernel/cpu.c:509:2: note: in expansion of macro 'if' 509 | if (cpu_dying(cpu) != !bringup) | ^~ vim +/cpu +475 kernel/cpu.c 462 463 static inline enum cpuhp_state 464 cpuhp_set_state(struct cpuhp_cpu_state *st, enum cpuhp_state target) 465 { 466 enum cpuhp_state prev_state = st->state; 467 bool bringup = st->state < target; 468 469 st->rollback = false; 470 st->last = NULL; 471 472 st->target = target; 473 st->single = false; 474 st->bringup = bringup; 476 set_cpu_dying(cpu, !bringup); 477 478 return prev_state; 479 } 480 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org