__cpu_up           21 arch/s390/include/asm/smp.h extern int __cpu_up(unsigned int cpu, struct task_struct *tidle);
__cpu_up           94 include/linux/smp.h extern int __cpu_up(unsigned int cpunum, struct task_struct *tidle);
__cpu_up          560 kernel/cpu.c   	ret = __cpu_up(cpu, idle);