CPUHP_AP_PERF_ARM_L2X0_ONLINE 546 arch/arm/mm/cache-l2x0-pmu.c ret = cpuhp_setup_state_nocalls(CPUHP_AP_PERF_ARM_L2X0_ONLINE, CPUHP_AP_PERF_ARM_L2X0_ONLINE 559 arch/arm/mm/cache-l2x0-pmu.c cpuhp_remove_state_nocalls(CPUHP_AP_PERF_ARM_L2X0_ONLINE);