acpi_wakeup_gpe_poweroff_prepare(); acpi_enter_sleep_state_prep(ACPI_STATE_S5); ACPI_DISABLE_IRQS();
acpi_power_off (void){	printk("%s called\n",__FUNCTION__);	/* Some SMP machines only can poweroff in boot CPU */	set_cpus_allowed(current, cpumask_of_cpu(0));	acpi_wakeup_gpe_poweroff_prepare();	acpi_enter_sleep_state_prep(ACPI_STATE_S5);	ACPI_DISABLE_IRQS();	acpi_enter_sleep_state(ACPI_STATE_S5);}