diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index e4e6f0432307..5ea227d9e24c 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1577,6 +1577,7 @@ task_may_not_preempt(struct task_struct *task, int cpu)
 		(task == cpu_ksoftirqd ||
 		 task_thread_info(task)->preempt_count & SOFTIRQ_MASK));
 }
+EXPORT_SYMBOL_GPL(task_may_not_preempt);
 #endif /* CONFIG_RT_SOFTINT_OPTIMIZATION */
 
 static int