static void acpi_processor_notify(acpi_handle handle, u32 event, void *data);
static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu);
static int acpi_processor_handle_eject(struct acpi_processor *pr);
-extern int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
static const struct acpi_device_id processor_device_ids[] = {