static int rapl_cpu_down_prep()

in intel_rapl_msr.c [81:97]

• 15 lines of code
• 4 McCabe index (conditional complexity)

static int rapl_cpu_down_prep(unsigned int cpu)
{
	struct rapl_package *rp;
	int lead_cpu;

	rp = rapl_find_package_domain(cpu, rapl_msr_priv);
	if (!rp)
		return 0;

	cpumask_clear_cpu(cpu, &rp->cpumask);
	lead_cpu = cpumask_first(&rp->cpumask);
	if (lead_cpu >= nr_cpu_ids)
		rapl_remove_package(rp);
	else if (rp->lead_cpu == cpu)
		rp->lead_cpu = lead_cpu;
	return 0;
}