From 6be48433ab35000ee64a14999833dc0f47e77572 Mon Sep 17 00:00:00 2001
From: Hangbin Liu <liuhangbin@gmail.com>
Date: Sat, 2 Mar 2019 09:01:10 +0000
Subject: [PATCH] net: vrf: remove MTU limits for vrf device

mainline inclusion
from mainline-5.0
commit ad49bc6361ca
category: bugfix
bugzilla: 10915
CVE: NA

-------------------------------------------------

Similiar to commit e94cd8113ce63 ("net: remove MTU limits for dummy and
ifb device"), MTU is irrelevant for VRF device. We init it as 64K while
limit it to [68, 1500] may make users feel confused.

Reported-by: Jianlin Shi <jishi@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Reviewed-by: Wenan Mao <maowenan@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 drivers/net/vrf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 21ad4b1d7f03..d9476509024c 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -1272,6 +1272,9 @@ static void vrf_setup(struct net_device *dev)
 
 	/* default to no qdisc; user can add if desired */
 	dev->priv_flags |= IFF_NO_QUEUE;
+
+	dev->min_mtu = 0;
+	dev->max_mtu = 0;
 }
 
 static int vrf_validate(struct nlattr *tb[], struct nlattr *data[],
-- 
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