From: Ido Schimmel Date: Mon, 20 Jun 2016 21:04:01 +0000 (+0200) Subject: mlxsw: spectrum: Forbid LAG slave from having VLAN uppers X-Git-Tag: v4.8-rc1~140^2~291^2~20 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6ec439043b0dcbd7845b9e268a12daac92ebd190;p=karo-tx-linux.git mlxsw: spectrum: Forbid LAG slave from having VLAN uppers When a port netdev is put under LAG it cannot have VLAN upper devices, so forbid that. The LAG device itself can have VLAN upper devices. Signed-off-by: Ido Schimmel Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index b47e3fb48bf7..46c867f3f261 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -3038,7 +3038,7 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev, !netif_is_lag_master(upper_dev) && !netif_is_bridge_master(upper_dev)) return -EINVAL; - if (!info->master || !info->linking) + if (!info->linking) break; /* HW limitation forbids to put ports to multiple bridges. */ if (netif_is_bridge_master(upper_dev) && @@ -3048,6 +3048,11 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev, !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev, info->upper_info)) return -EINVAL; + if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev)) + return -EINVAL; + if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) && + !netif_is_lag_master(vlan_dev_real_dev(upper_dev))) + return -EINVAL; break; case NETDEV_CHANGEUPPER: upper_dev = info->upper_dev;