netdev - [net PATCH] net: vrf: remove MTU limits for vrf device

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Message-Id: <20190218091425.11067-1-liuhangbin@gmail.com>
Date:   Mon, 18 Feb 2019 17:14:25 +0800
From:   Hangbin Liu <liuhangbin@...il.com>
To:     netdev@...r.kernel.org
Cc:     David Ahern <dsa@...ulusnetworks.com>,
        "David S . Miller" <davem@...emloft.net>,
        Davide Caratti <dcaratti@...hat.com>,
        Hangbin Liu <liuhangbin@...il.com>
Subject: [net PATCH] net: vrf: remove MTU limits for vrf device

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@...hat.com>
Signed-off-by: Hangbin Liu <liuhangbin@...il.com>
---
 drivers/net/vrf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 95909e262ba4..7c1430ed0244 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -1273,6 +1273,9 @@ 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[],
-- 
2.19.2