diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index caee658609d7385937bf7d08d4258aec70346692..c7b4f905feb58e7aaf9375c4715e799320c02a31 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -568,6 +568,7 @@ static void throtl_pd_online(struct blkg_policy_data *pd)
 	tg_update_has_rules(tg);
 }
 
+#ifdef CONFIG_BLK_DEV_THROTTLING_LOW
 static void blk_throtl_update_limit_valid(struct throtl_data *td)
 {
 	struct cgroup_subsys_state *pos_css;
@@ -588,6 +589,11 @@ static void blk_throtl_update_limit_valid(struct throtl_data *td)
 
 	td->limit_valid[LIMIT_LOW] = low_valid;
 }
+#else
+static inline void blk_throtl_update_limit_valid(struct throtl_data *td)
+{
+}
+#endif
 
 static void throtl_upgrade_state(struct throtl_data *td);
 static void throtl_pd_offline(struct blkg_policy_data *pd)