team: fix mtu setting
[ Upstream commit 9d0d68faea6962d62dd501cd6e71ce5cc8ed262b ]
Now it is not possible to set mtu to team device which has a port
enslaved to it. The reason is that when team_change_mtu() calls
dev_set_mtu() for port device, notificator for NETDEV_PRECHANGEMTU
event is called and team_device_event() returns NOTIFY_BAD forbidding
the change. So fix this by returning NOTIFY_DONE here in case team is
changing mtu in team_change_mtu().
Introduced-by: 3d249d4c "net: introduce ethernet teaming device"
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/if_team.h b/include/linux/if_team.h
index 58404b0..b159b10 100644
--- a/include/linux/if_team.h
+++ b/include/linux/if_team.h
@@ -113,6 +113,7 @@
const struct team_mode *mode;
struct team_mode_ops ops;
+ bool port_mtu_change_allowed;
long mode_priv[TEAM_MODE_PRIV_LONGS];
};