team: use ETH_MAX_MTU as max mtu

[ Upstream commit 3331aa378e9bcbd0d16de9034b0c20f4050e26b4 ]

This restores the ability to set a team device's mtu to anything higher
than 1500. Similar to the reported issue with bonding, the team driver
calls ether_setup(), which sets an initial max_mtu of 1500, while the
underlying hardware can handle something much larger. Just set it to
ETH_MAX_MTU to support all possible values, and the limitations of the
underlying devices will prevent setting anything too large.

Fixes: 91572088e3fd ("net: use core MTU range checking in core net infra")
CC: Cong Wang <xiyou.wangcong@gmail.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: netdev@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index bdc58567d10e7b370b6966c35251b81619f314ce..707321508c69ebd0da22dc21d5dd3ca724bf0a11 100644 (file)
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2075,6 +2075,7 @@ static int team_dev_type_check_change(struct net_device *dev,
 static void team_setup(struct net_device *dev)
 {
        ether_setup(dev);
+       dev->max_mtu = ETH_MAX_MTU;
 
        dev->netdev_ops = &team_netdev_ops;
        dev->ethtool_ops = &team_ethtool_ops;