From b01f236c66b214a73816a4083050f73481638a72 Mon Sep 17 00:00:00 2001 From: Veaceslav Falico Date: Thu, 16 Jan 2014 00:02:19 +0100 Subject: [PATCH] team: block mtu change before it happens via NETDEV_PRECHANGEMTU Now it catches the NETDEV_CHANGEMTU notification, which is signaled after the actual change happened on the device, and returns NOTIFY_BAD, so that the change on the device is reverted. This might be quite costly and messy, so use the new NETDEV_PRECHANGEMTU to catch the MTU change before the actual change happens and signal that it's forbidden to do it. CC: Jiri Pirko Signed-off-by: Veaceslav Falico Acked-by: Jiri Pirko Signed-off-by: David S. Miller --- drivers/net/team/team.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index b75ae5bde67..dff24e3dde4 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -2851,7 +2851,7 @@ static int team_device_event(struct notifier_block *unused, case NETDEV_FEAT_CHANGE: team_compute_features(port->team); break; - case NETDEV_CHANGEMTU: + case NETDEV_PRECHANGEMTU: /* Forbid to change mtu of underlaying device */ return NOTIFY_BAD; case NETDEV_PRE_TYPE_CHANGE: -- 2.41.0