__cpu_up_task_pointer 17 arch/riscv/kernel/head.h extern void *__cpu_up_task_pointer[]; __cpu_up_task_pointer 37 arch/riscv/kernel/smpboot.c void *__cpu_up_task_pointer[NR_CPUS]; __cpu_up_task_pointer 115 arch/riscv/kernel/smpboot.c WRITE_ONCE(__cpu_up_task_pointer[hartid], tidle);