inline void update_rq_clock(struct rq *rq)
{
	int cpu = cpu_of(rq);
	u64 irq_time;

	if (rq->skip_clock_update)
		return;

	rq->clock = sched_clock_cpu(cpu);
	irq_time = irq_time_cpu(cpu);
	if (rq->clock - irq_time > rq->clock_task)
		rq->clock_task = rq->clock - irq_time;

	sched_irq_time_avg_update(rq, irq_time);
}
The program contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.