[PATCH 2/7] ibmvnic: Update MTU after device initialization

[Tim Gardner]

From: Thomas Falcon <tlfalcon at linux.vnet.ibm.com>

BugLink: http://bugs.launchpad.net/bugs/1655379

It is possible for the MTU to be changed during the initialization
process with the VNIC Server.  Ensure that the net device is updated
to reflect the new MTU.

Signed-off-by: Thomas Falcon <tlfalcon at linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem at davemloft.net>
(cherry picked from commit 87737f8810db445db171ca81ca4cc43bd5b067ce)
Signed-off-by: Tim Gardner <tim.gardner at canonical.com>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index bdbed86..bb048ca 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -3660,6 +3660,7 @@ static void handle_crq_init_rsp(struct work_struct *work)
 		goto task_failed;
 
 	netdev->real_num_tx_queues = adapter->req_tx_queues;
+	netdev->mtu = adapter->req_mtu;
 
 	if (adapter->failover) {
 		adapter->failover = false;
@@ -3797,6 +3798,7 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id)
 	}
 
 	netdev->real_num_tx_queues = adapter->req_tx_queues;
+	netdev->mtu = adapter->req_mtu;
 
 	rc = register_netdev(netdev);
 	if (rc) {
-- 
2.7.4