[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date: Tue, 6 Jun 2017 16:55:52 -0500
From: John Allen <jallen@...ux.vnet.ibm.com>
To: netdev@...r.kernel.org
Cc: Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>,
Nathan Fontenot <nfont@...ux.vnet.ibm.com>,
John Allen <jallen@...ux.vnet.ibm.com>
Subject: [PATCH net] 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: John Allen <jallen@...ux.vnet.ibm.com>
---
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 4f2d329..8ff6c74 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -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 void ibmvnic_netpoll_controller(struct net_device *dev)
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = ibmvnic_netpoll_controller,
#endif
+ .ndo_change_mtu = ibmvnic_change_mtu,
};
/* ethtool functions */
Powered by blists - more mailing lists