diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 7db8592dae3873ec62160b5bad79312cb90dc4c9..e6a087de414dbd59db9936cc0c8374d8d686bc9e 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -1762,7 +1762,6 @@ static unsigned long __tg_last_low_overflow_time(struct throtl_grp *tg)
 	return min(rtime, wtime);
 }
 
-/* tg should not be an intermediate node */
 static unsigned long tg_last_low_overflow_time(struct throtl_grp *tg)
 {
 	struct throtl_service_queue *parent_sq;