diff --git a/include/linux/sched.h b/include/linux/sched.h
index 3625fcaf5d0f..fed07d03364e 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -790,6 +790,7 @@ struct sched_domain {
 };
 
 extern void partition_sched_domains(int ndoms_new, cpumask_t *doms_new);
+extern int arch_reinit_sched_domains(void);
 
 #endif	/* CONFIG_SMP */
 
diff --git a/kernel/sched.c b/kernel/sched.c
index 573179eb553e..78482e51b583 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -6920,7 +6920,7 @@ match2:
 }
 
 #if defined(CONFIG_SCHED_MC) || defined(CONFIG_SCHED_SMT)
-static int arch_reinit_sched_domains(void)
+int arch_reinit_sched_domains(void)
 {
 	int err;