Messages in this thread | | | Date | Thu, 7 Dec 2017 04:32:17 +0800 | From | kbuild test robot <> | Subject | [rcu:rcu/dev 25/25] kernel/sched/core.c:5684:2: note: in expansion of macro 'timers_dead_cpu' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/dev head: dab0b22dfc3bd3ed37876b2465dc622a39ae25e0 commit: dab0b22dfc3bd3ed37876b2465dc622a39ae25e0 [25/25] EXP: timer: Repeat timers_dead_cpu() in sched_cpu_deactivate() config: x86_64-randconfig-x003-201749 (attached as .config) compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025 reproduce: git checkout dab0b22dfc3bd3ed37876b2465dc622a39ae25e0 # save the attached .config to linux build tree make ARCH=x86_64
All error/warnings (new ones prefixed by >>):
In file included from include/uapi/linux/posix_types.h:5:0, from include/uapi/linux/types.h:14, from include/linux/compiler.h:164, from arch/x86/include/asm/current.h:5, from include/linux/sched.h:12, from kernel/sched/core.c:8: kernel/sched/core.c: In function 'sched_cpu_deactivate': >> include/linux/stddef.h:8:14: error: called object is not a function or function pointer #define NULL ((void *)0) ^ >> include/linux/timer.h:212:25: note: in expansion of macro 'NULL' #define timers_dead_cpu NULL ^~~~ >> kernel/sched/core.c:5684:2: note: in expansion of macro 'timers_dead_cpu' timers_dead_cpu(cpu); ^~~~~~~~~~~~~~~ -- In file included from include/uapi/linux/posix_types.h:5:0, from include/uapi/linux/types.h:14, from include/linux/compiler.h:164, from arch/x86/include/asm/current.h:5, from include/linux/sched.h:12, from kernel//sched/core.c:8: kernel//sched/core.c: In function 'sched_cpu_deactivate': >> include/linux/stddef.h:8:14: error: called object is not a function or function pointer #define NULL ((void *)0) ^ >> include/linux/timer.h:212:25: note: in expansion of macro 'NULL' #define timers_dead_cpu NULL ^~~~ kernel//sched/core.c:5684:2: note: in expansion of macro 'timers_dead_cpu' timers_dead_cpu(cpu); ^~~~~~~~~~~~~~~
vim +/timers_dead_cpu +5684 kernel/sched/core.c
5678 5679 int sched_cpu_deactivate(unsigned int cpu) 5680 { 5681 int ret; 5682 5683 set_cpu_active(cpu, false); > 5684 timers_dead_cpu(cpu); 5685 /* 5686 * We've cleared cpu_active_mask, wait for all preempt-disabled and RCU 5687 * users of this state to go away such that all new such users will 5688 * observe it. 5689 * 5690 * Do sync before park smpboot threads to take care the rcu boost case. 5691 */ 5692 synchronize_rcu_mult(call_rcu, call_rcu_sched); 5693 5694 if (!sched_smp_initialized) 5695 return 0; 5696 5697 ret = cpuset_cpu_inactive(cpu); 5698 if (ret) { 5699 set_cpu_active(cpu, true); 5700 return ret; 5701 } 5702 sched_domains_numa_masks_clear(cpu); 5703 return 0; 5704 } 5705
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