static bool __init intel_idle_acpi_cst_extract()

in intel_idle.c [1242:1274]

• 24 lines of code
• 6 McCabe index (conditional complexity)

static bool __init intel_idle_acpi_cst_extract(void)
{
	unsigned int cpu;

	if (no_acpi) {
		pr_debug("Not allowed to use ACPI _CST\n");
		return false;
	}

	for_each_possible_cpu(cpu) {
		struct acpi_processor *pr = per_cpu(processors, cpu);

		if (!pr)
			continue;

		if (acpi_processor_evaluate_cst(pr->handle, cpu, &acpi_state_table))
			continue;

		acpi_state_table.count++;

		if (!intel_idle_cst_usable())
			continue;

		if (!acpi_processor_claim_cst_control())
			break;

		return true;
	}

	acpi_state_table.count = 0;
	pr_debug("ACPI _CST not found or not usable\n");
	return false;
}