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ibmvnic: Return failure on attempted mtu change

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Changing the mtu is currently not supported in the ibmvnic driver.

Implement .ndo_change_mtu in the driver so that attempting to use ifconfig
to change the mtu will fail and present the user with an error message.

Signed-off-by: John Allen <jallen@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Allen 2017-06-06 16:55:52 -05:00 committed by David S. Miller
parent e4061d572c
commit 3a807b751c
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/ibm/ibmvnic.c
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@ -1468,6 +1468,11 @@ static void ibmvnic_netpoll_controller(struct net_device *dev)
}
#endif
static int ibmvnic_change_mtu(struct net_device *netdev, int new_mtu)
{
return -EOPNOTSUPP;
}
static const struct net_device_ops ibmvnic_netdev_ops = {
.ndo_open = ibmvnic_open,
.ndo_stop = ibmvnic_close,
@ -1479,6 +1484,7 @@ static const struct net_device_ops ibmvnic_netdev_ops = {
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = ibmvnic_netpoll_controller,
#endif
.ndo_change_mtu = ibmvnic_change_mtu,
};
/* ethtool functions */