diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 9ce46445a46b..ea127af58ada 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -3188,8 +3188,7 @@ static int vhost_add_used_n_in_order(struct vhost_virtqueue *vq,
 		}
 		start += nheads[i];
 		new += nheads[i];
-		if (start >= vq->num)
-			start -= vq->num;
+		start &= vq->num - 1;
 	}
 
 	if (unlikely(vq->log_used)) {