diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 33e599ebbe96ccb024239964b5938f1bad5aff15..3f95a533c1a8f17de582b2abe28e51bd77006fd2 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -390,7 +390,7 @@ static int cpu_hotplug_notify(struct notifier_block *n,
 	int hotcpu = (unsigned long)hcpu;
 	struct cpuidle_device *dev;
 
-	switch (action & 0xf) {
+	switch (action & ~CPU_TASKS_FROZEN) {
 	case CPU_ONLINE:
 
 		if (lapic_timer_reliable_states != LAPIC_TIMER_ALWAYS_RELIABLE)