121  * @startup:	Startup function of the step
132 	} startup;  member
155 	return bringup ? !step->startup.single : !step->teardown.single;  in cpuhp_step_empty()
192 		cb = bringup ? step->startup.single : step->teardown.single;  in cpuhp_invoke_callback()
199 	cbm = bringup ? step->startup.multi : step->teardown.multi;  in cpuhp_invoke_callback()
233 	cbm = !bringup ? step->startup.multi : step->teardown.multi;  in cpuhp_invoke_callback()
855 	 * startup in cpuhp_online_idle() which allows to avoid  in bringup_cpu()
1028  * Execute teardown/startup callbacks on the plugged cpu. Also used to invoke
1213  * startup or the teardown callback of the affected state.
1851  * sends the startup IPI to the APs. The APs proceed through the low level
1855  * This avoids waiting for each AP to respond to the startup IPI in
2073 		.startup.single		= NULL,
2079 		.startup.single		= smpboot_create_threads,
2085 		.startup.single		= perf_event_init_cpu,
2090 		.startup.single		= random_prepare_cpu,
2095 		.startup.single		= workqueue_prepare_cpu,
2100 		.startup.single		= hrtimers_prepare_cpu,
2105 		.startup.single		= smpcfd_prepare_cpu,
2110 		.startup.single		= relay_prepare_cpu,
2115 		.startup.single		= slab_prepare_cpu,
2120 		.startup.single		= rcutree_prepare_cpu,
2130 		.startup.single		= timers_prepare_cpu,
2141 		.startup.single		= cpuhp_kick_ap_alive,
2150 		.startup.single		= cpuhp_bringup_ap,
2160 		.startup.single		= bringup_cpu,
2180 		.startup.single		= sched_cpu_starting,
2185 		.startup.single		= NULL,
2190 		.startup.single		= NULL,
2204 		.startup.single		= NULL,
2211 		.startup.single		= NULL,
2218 		.startup.single		= smpboot_unpark_threads,
2223 		.startup.single		= irq_affinity_online_cpu,
2228 		.startup.single		= perf_event_init_cpu,
2233 		.startup.single		= lockup_detector_online_cpu,
2238 		.startup.single		= workqueue_online_cpu,
2243 		.startup.single		= random_online_cpu,
2248 		.startup.single		= rcutree_online_cpu,
2260 		.startup.single		= sched_cpu_activate,
2268 		.startup.single		= NULL,
2313 				 int (*startup)(unsigned int cpu),  in cpuhp_store_callbacks()
2341 	sp->startup.single = startup;  in cpuhp_store_callbacks()
2355  * Call the startup/teardown function for a step either on the AP or
2404 		/* Did we invoke the startup call on that cpu ? */  in cpuhp_rollback_install()
2426 	if (!invoke || !sp->startup.multi)  in __cpuhp_state_add_instance_cpuslocked()
2430 	 * Try to call the startup callback for each present cpu  in __cpuhp_state_add_instance_cpuslocked()
2471  * @invoke:		If true, the startup function is invoked for cpus where
2473  * @startup:		startup callback function
2487 				   int (*startup)(unsigned int cpu),  in __cpuhp_setup_state_cpuslocked()
2501 	ret = cpuhp_store_callbacks(state, name, startup, teardown,  in __cpuhp_setup_state_cpuslocked()
2510 	if (ret || !invoke || !startup)  in __cpuhp_setup_state_cpuslocked()
2514 	 * Try to call the startup callback for each present cpu  in __cpuhp_setup_state_cpuslocked()
2546 			int (*startup)(unsigned int cpu),  in __cpuhp_setup_state()
2553 	ret = __cpuhp_setup_state_cpuslocked(state, name, invoke, startup,  in __cpuhp_setup_state()
2833 	if (!sp->startup.single && !sp->teardown.single)  in fail_store()