]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commitdiff
ibmvnic: Return failure on attempted mtu change
authorJohn Allen <jallen@linux.vnet.ibm.com>
Tue, 6 Jun 2017 21:55:52 +0000 (16:55 -0500)
committerDavid S. Miller <davem@davemloft.net>
Wed, 7 Jun 2017 19:02:45 +0000 (15:02 -0400)
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>
drivers/net/ethernet/ibm/ibmvnic.c

index a93757c255f77445e2245ee8b065d2c6ee31cf3f..c0fbeb387db46627bed908e8f4cb145ed0bcfe4b 100644 (file)
@@ -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 */