- * register_cpu - Setup a driverfs device for a CPU.
- * @cpu - Callers can set the cpu->no_control field to 1, to indicate not to
- * generate a control file in sysfs for this CPU.
+ * register_cpu - Setup a sysfs device for a CPU.
+ * @cpu - cpu->hotpluggable field set to 1 will generate a control file in
+ * sysfs for this CPU.