static int intel_idle_cpu_online()

in intel_idle.c [1669:1686]

• 10 lines of code
• 3 McCabe index (conditional complexity)

static int intel_idle_cpu_online(unsigned int cpu)
{
	struct cpuidle_device *dev;

	if (!boot_cpu_has(X86_FEATURE_ARAT))
		tick_broadcast_enable();

	/*
	 * Some systems can hotplug a cpu at runtime after
	 * the kernel has booted, we have to initialize the
	 * driver in this case
	 */
	dev = per_cpu_ptr(intel_idle_cpuidle_devices, cpu);
	if (!dev->registered)
		return intel_idle_cpu_init(cpu);

	return 0;
}