[PATCH net-next] openvswitch: Set internal device max mtu to ETH_MAX_MTU.

[PATCH net-next] openvswitch: Set internal device max mtu to ETH_MAX_MTU.

[Jarno Rajahalme]

Commit 91572088e3fd ("net: use core MTU range checking in core net
infra") changed the openvswitch internal device to use the core net
infra for controlling the MTU range, but failed to actually set the
max_mtu as described in the commit message, which now defaults to
ETH_DATA_LEN.

This patch fixes this by setting max_mtu to ETH_MAX_MTU after
ether_setup() call.

Fixes: 91572088e3fd ("net: use core MTU range checking in core net infra")
Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
---
 net/openvswitch/vport-internal_dev.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index 09141a1..89193a6 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -149,6 +149,8 @@ static void do_setup(struct net_device *netdev)
 {
 	ether_setup(netdev);
 
+	netdev->max_mtu = ETH_MAX_MTU;
+
 	netdev->netdev_ops = &internal_dev_netdev_ops;
 
 	netdev->priv_flags &= ~IFF_TX_SKB_SHARING;
-- 
2.1.4

Re: [PATCH net-next] openvswitch: Set internal device max mtu to ETH_MAX_MTU.

[David Miller]

From: Jarno Rajahalme <jarno@ovn.org>
Date: Tue, 14 Feb 2017 21:16:28 -0800

> Commit 91572088e3fd ("net: use core MTU range checking in core net
> infra") changed the openvswitch internal device to use the core net
> infra for controlling the MTU range, but failed to actually set the
> max_mtu as described in the commit message, which now defaults to
> ETH_DATA_LEN.
> 
> This patch fixes this by setting max_mtu to ETH_MAX_MTU after
> ether_setup() call.
> 
> Fixes: 91572088e3fd ("net: use core MTU range checking in core net infra")
> Signed-off-by: Jarno Rajahalme <jarno@ovn.org>

Applied, thank you.