diff --git a/include/linux/sched.h b/include/linux/sched.h
index bd38b3ee9e8336b47ee94ae2aec6ffb1f1f4ee4e..699228bb0035b826a18a544cb0cb87f12c70bb03 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1127,8 +1127,6 @@ struct sched_domain_topology_level {
 #endif
 };
 
-extern struct sched_domain_topology_level *sched_domain_topology;
-
 extern void set_sched_topology(struct sched_domain_topology_level *tl);
 extern void wake_up_if_idle(int cpu);
 
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 1b30b5b24a4a128713786af15b22e4f8fb44768e..a91df6171f48ad98cbe4980d0f32bcb23bbd8e5e 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6445,7 +6445,8 @@ static struct sched_domain_topology_level default_topology[] = {
 	{ NULL, },
 };
 
-struct sched_domain_topology_level *sched_domain_topology = default_topology;
+static struct sched_domain_topology_level *sched_domain_topology =
+	default_topology;
 
 #define for_each_sd_topology(tl)			\
 	for (tl = sched_domain_topology; tl->mask; tl++)