diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 7d9fec642662..c0fc24530643 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -3169,5 +3169,3 @@ void print_rt_stats(struct seq_file *m, int cpu)
 	rcu_read_unlock();
 }
 #endif /* CONFIG_SCHED_DEBUG */
-
-extern bool cpu_busy_with_softirqs(int cpu);
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 210032735650..f3ee288cc680 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -3278,4 +3278,5 @@ static inline void update_current_exec_runtime(struct task_struct *curr,
 	cgroup_account_cputime(curr, delta_exec);
 }
 
+extern bool cpu_busy_with_softirqs(int cpu);
 #endif /* _KERNEL_SCHED_SCHED_H */