netdev - [PATCH net-next 2/2] ionic: change mtu after queues are stopped

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Date:   Mon, 30 Nov 2020 16:25:46 -0800
From:   Shannon Nelson <snelson@...sando.io>
To:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org
Cc:     Shannon Nelson <snelson@...sando.io>
Subject: [PATCH net-next 2/2] ionic: change mtu after queues are stopped

Order of operations is slightly more correct in the driver
to change the netdev->mtu after the queues have been stopped
rather than before.

Signed-off-by: Shannon Nelson <snelson@...sando.io>
---
 drivers/net/ethernet/pensando/ionic/ionic_lif.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 0b7f2def423c..11140915c2da 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -1465,12 +1465,14 @@ static int ionic_change_mtu(struct net_device *netdev, int new_mtu)
 	if (err)
 		return err;
 
-	netdev->mtu = new_mtu;
 	/* if we're not running, nothing more to do */
-	if (!netif_running(netdev))
+	if (!netif_running(netdev)) {
+		netdev->mtu = new_mtu;
 		return 0;
+	}
 
 	ionic_stop_queues_reconfig(lif);
+	netdev->mtu = new_mtu;
 	return ionic_start_queues_reconfig(lif);
 }
 
-- 
2.17.1