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Commit 3a807b75 authored by John Allen's avatar John Allen Committed by David S. Miller
Browse files

ibmvnic: Return failure on attempted mtu change 



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: default avatarJohn Allen <jallen@linux.vnet.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e4061d57

drivers/net/ethernet/ibm/ibmvnic.c

+6 −0
Original line number Diff line number Diff line
@@ -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 */