diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
index a3c185505afc..f78f8e950776 100644
--- a/net/sched/sch_cake.c
+++ b/net/sched/sch_cake.c
@@ -1389,10 +1389,7 @@ static u32 cake_calc_overhead(struct cake_sched_data *qd, u32 len, u32 off)
 	if (qd->min_netlen > len)
 		WRITE_ONCE(qd->min_netlen, len);
 
-	len += q->rate_overhead;
-
-	if (len < q->rate_mpu)
-		len = q->rate_mpu;
+	len = max((s32)len + q->rate_overhead, (s32)q->rate_mpu);
 
 	if (q->atm_mode == CAKE_ATM_ATM) {
 		len += 47;