sched_setscheduler(current, SCHED_RR, ¶m);
 
        while (!kthread_should_stop()) {
-               int cpu;
                unsigned long expire_time;
 
                try_to_freeze();
                        }
                        local_irq_disable();
                        tick_broadcast_enable();
-                       cpu = smp_processor_id();
-                       clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
+                       tick_broadcast_enter();
                        stop_critical_timings();
 
                        mwait_idle_with_hints(power_saving_mwait_eax, 1);
 
                        start_critical_timings();
-                       clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);
+                       tick_broadcast_exit();
                        local_irq_enable();
 
                        if (time_before(expire_time, jiffies)) {