static int alpha_pmu_event_init()

in kernel/perf_event.c [690:715]

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

static int alpha_pmu_event_init(struct perf_event *event)
{
	int err;

	/* does not support taken branch sampling */
	if (has_branch_stack(event))
		return -EOPNOTSUPP;

	switch (event->attr.type) {
	case PERF_TYPE_RAW:
	case PERF_TYPE_HARDWARE:
	case PERF_TYPE_HW_CACHE:
		break;

	default:
		return -ENOENT;
	}

	if (!alpha_pmu)
		return -ENODEV;

	/* Do the real initialisation work. */
	err = __hw_perf_event_init(event);

	return err;
}