This is a note to let you know that I've just added the patch titled net: ocelot: fix switchdev objects synced for wrong netdev with LAG offload to the 5.13-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: net-ocelot-fix-switchdev-objects-synced-for-wrong-ne.patch and it can be found in the queue-5.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit cb8509f365a30c31fa03133b4dd95922e02cce5e Author: Vladimir Oltean <vladimir.oltean@xxxxxxx> Date: Tue Jul 13 12:33:50 2021 +0300 net: ocelot: fix switchdev objects synced for wrong netdev with LAG offload [ Upstream commit e56c6bbd98dc1cefb6f9c5d795fd29016e4f2fe7 ] The point with a *dev and a *brport_dev is that when we have a LAG net device that is a bridge port, *dev is an ocelot net device and *brport_dev is the bonding/team net device. The ocelot net device beneath the LAG does not exist from the bridge's perspective, so we need to sync the switchdev objects belonging to the brport_dev and not to the dev. Fixes: e4bd44e89dcf ("net: ocelot: replay switchdev events when joining bridge") Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/net/ethernet/mscc/ocelot_net.c b/drivers/net/ethernet/mscc/ocelot_net.c index aad33d22c33f..3dc577183a40 100644 --- a/drivers/net/ethernet/mscc/ocelot_net.c +++ b/drivers/net/ethernet/mscc/ocelot_net.c @@ -1287,6 +1287,7 @@ static int ocelot_netdevice_lag_leave(struct net_device *dev, } static int ocelot_netdevice_changeupper(struct net_device *dev, + struct net_device *brport_dev, struct netdev_notifier_changeupper_info *info) { struct netlink_ext_ack *extack; @@ -1296,11 +1297,11 @@ static int ocelot_netdevice_changeupper(struct net_device *dev, if (netif_is_bridge_master(info->upper_dev)) { if (info->linking) - err = ocelot_netdevice_bridge_join(dev, dev, + err = ocelot_netdevice_bridge_join(dev, brport_dev, info->upper_dev, extack); else - err = ocelot_netdevice_bridge_leave(dev, dev, + err = ocelot_netdevice_bridge_leave(dev, brport_dev, info->upper_dev); } if (netif_is_lag_master(info->upper_dev)) { @@ -1335,7 +1336,7 @@ ocelot_netdevice_lag_changeupper(struct net_device *dev, if (ocelot_port->bond != dev) return NOTIFY_OK; - err = ocelot_netdevice_changeupper(lower, info); + err = ocelot_netdevice_changeupper(lower, dev, info); if (err) return notifier_from_errno(err); } @@ -1374,7 +1375,7 @@ static int ocelot_netdevice_event(struct notifier_block *unused, struct netdev_notifier_changeupper_info *info = ptr; if (ocelot_netdevice_dev_check(dev)) - return ocelot_netdevice_changeupper(dev, info); + return ocelot_netdevice_changeupper(dev, dev, info); if (netif_is_lag_master(dev)) return ocelot_netdevice_lag_changeupper(dev, info);