--- zzzz-none-000/linux-4.4.60/drivers/cpufreq/cpufreq.c	2017-04-08 07:53:53.000000000 +0000
+++ dragonfly-4020-701/linux-4.4.60/drivers/cpufreq/cpufreq.c	2018-11-08 13:36:17.000000000 +0000
@@ -389,6 +389,12 @@
 		if (likely(policy) && likely(policy->cpu == freqs->cpu))
 			policy->cur = freqs->new;
 		break;
+
+	case CPUFREQ_NOCHANGE:
+		srcu_notifier_call_chain(
+					&cpufreq_transition_notifier_list,
+					CPUFREQ_NOCHANGE, freqs);
+		break;
 	}
 }
 
@@ -400,7 +406,7 @@
  * function. It is called twice on all CPU frequency changes that have
  * external effects.
  */
-static void cpufreq_notify_transition(struct cpufreq_policy *policy,
+void cpufreq_notify_transition(struct cpufreq_policy *policy,
 		struct cpufreq_freqs *freqs, unsigned int state)
 {
 	for_each_cpu(freqs->cpu, policy->cpus)