diff --git a/include/net/dst.h b/include/net/dst.h
index cae3fe9a13a14199e0d5990f7c5c0d90c5fd0a6b..bf4442051899a23775cb6fc93752bf09b8ec219b 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -542,6 +542,15 @@ static inline void skb_dst_update_pmtu(struct sk_buff *skb, u32 mtu)
 		dst->ops->update_pmtu(dst, NULL, skb, mtu, true);
 }
 
+/* update dst pmtu but not do neighbor confirm */
+static inline void skb_dst_update_pmtu_no_confirm(struct sk_buff *skb, u32 mtu)
+{
+	struct dst_entry *dst = skb_dst(skb);
+
+	if (dst && dst->ops->update_pmtu)
+		dst->ops->update_pmtu(dst, NULL, skb, mtu, false);
+}
+
 static inline void skb_tunnel_check_pmtu(struct sk_buff *skb,
 					 struct dst_entry *encap_dst,
 					 int headroom)