diff --git a/Documentation/networking/net_cachelines/net_device.rst b/Documentation/networking/net_cachelines/net_device.rst index 15e31ece675fc..6327e689e8a84 100644 --- a/Documentation/networking/net_cachelines/net_device.rst +++ b/Documentation/networking/net_cachelines/net_device.rst @@ -167,7 +167,7 @@ unsigned:1 wol_enabled unsigned:1 threaded napi_poll(napi_enable,dev_set_threaded) unsigned_long:1 see_all_hwtstamp_requests unsigned_long:1 change_proto_down -unsigned_long:1 netns_local +unsigned_long:1 netns_immutable unsigned_long:1 fcoe_mtu struct list_head net_notifier_list struct macsec_ops* macsec_ops diff --git a/Documentation/networking/switchdev.rst b/Documentation/networking/switchdev.rst index f355f0166f1b4..2966b7122f050 100644 --- a/Documentation/networking/switchdev.rst +++ b/Documentation/networking/switchdev.rst @@ -137,7 +137,7 @@ would be sub-port 0 on port 1 on switch 1. Port Features ^^^^^^^^^^^^^ -dev->netns_local +dev->netns_immutable If the switchdev driver (and device) only supports offloading of the default network namespace (netns), the driver should set this private flag to prevent diff --git a/drivers/net/amt.c b/drivers/net/amt.c index 53899b70fae1c..734a0b3242a9b 100644 --- a/drivers/net/amt.c +++ b/drivers/net/amt.c @@ -3099,7 +3099,7 @@ static void amt_link_setup(struct net_device *dev) dev->addr_len = 0; dev->priv_flags |= IFF_NO_QUEUE; dev->lltx = true; - dev->netns_local = true; + dev->netns_immutable = true; dev->features |= NETIF_F_GSO_SOFTWARE; dev->hw_features |= NETIF_F_SG | NETIF_F_HW_CSUM; dev->hw_features |= NETIF_F_FRAGLIST | NETIF_F_RXCSUM; diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 7d98fee5a27f9..fe7072336e8fd 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -6025,7 +6025,7 @@ void bond_setup(struct net_device *bond_dev) bond_dev->lltx = true; /* Don't allow bond devices to change network namespaces. */ - bond_dev->netns_local = true; + bond_dev->netns_immutable = true; /* By default, we declare the bond to be fully * VLAN hardware accelerated capable. Special diff --git a/drivers/net/ethernet/adi/adin1110.c b/drivers/net/ethernet/adi/adin1110.c index 68fad5575fd4f..30f9d271e5953 100644 --- a/drivers/net/ethernet/adi/adin1110.c +++ b/drivers/net/ethernet/adi/adin1110.c @@ -1599,7 +1599,7 @@ static int adin1110_probe_netdevs(struct adin1110_priv *priv) netdev->netdev_ops = &adin1110_netdev_ops; netdev->ethtool_ops = &adin1110_ethtool_ops; netdev->priv_flags |= IFF_UNICAST_FLT; - netdev->netns_local = true; + netdev->netns_immutable = true; port_priv->phydev = get_phy_device(priv->mii_bus, i + 1, false); if (IS_ERR(port_priv->phydev)) { diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c index 8cdecf61253cc..71ffb55d1fc48 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_main.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c @@ -634,7 +634,7 @@ static int prestera_port_create(struct prestera_switch *sw, u32 id) goto err_dl_port_register; dev->features |= NETIF_F_HW_TC; - dev->netns_local = true; + dev->netns_immutable = true; dev->netdev_ops = &prestera_netdev_ops; dev->ethtool_ops = &prestera_ethtool_ops; SET_NETDEV_DEV(dev, sw->dev->dev); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 7e3aad0151117..6eb8642d2e2b1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -4423,9 +4423,9 @@ static netdev_features_t mlx5e_fix_features(struct net_device *netdev, if (mlx5e_is_uplink_rep(priv)) { features = mlx5e_fix_uplink_rep_features(netdev, features); - netdev->netns_local = true; + netdev->netns_immutable = true; } else { - netdev->netns_local = false; + netdev->netns_immutable = false; } mutex_unlock(&priv->state_lock); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c index 07f38f472a279..2abab241f03bd 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c @@ -905,7 +905,7 @@ static void mlx5e_build_rep_netdev(struct net_device *netdev, netdev->features |= netdev->hw_features; - netdev->netns_local = true; + netdev->netns_immutable = true; } static int mlx5e_init_rep(struct mlx5_core_dev *mdev, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 1f8362788c756..c7e6a32582448 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -1579,7 +1579,7 @@ static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u16 local_port, NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; dev->vlan_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; dev->lltx = true; - dev->netns_local = true; + dev->netns_immutable = true; dev->min_mtu = ETH_MIN_MTU; dev->max_mtu = MLXSW_PORT_MAX_MTU - MLXSW_PORT_ETH_FRAME_HDR; diff --git a/drivers/net/ethernet/rocker/rocker_main.c b/drivers/net/ethernet/rocker/rocker_main.c index fe0bf1d3217af..36af94a2e062a 100644 --- a/drivers/net/ethernet/rocker/rocker_main.c +++ b/drivers/net/ethernet/rocker/rocker_main.c @@ -2576,7 +2576,7 @@ static int rocker_probe_port(struct rocker *rocker, unsigned int port_number) rocker_carrier_init(rocker_port); dev->features |= NETIF_F_SG; - dev->netns_local = true; + dev->netns_immutable = true; /* MTU range: 68 - 9000 */ dev->min_mtu = ROCKER_PORT_MIN_MTU; diff --git a/drivers/net/ethernet/ti/cpsw_new.c b/drivers/net/ethernet/ti/cpsw_new.c index cec0a90659d94..b01289d4726da 100644 --- a/drivers/net/ethernet/ti/cpsw_new.c +++ b/drivers/net/ethernet/ti/cpsw_new.c @@ -1409,7 +1409,7 @@ static int cpsw_create_ports(struct cpsw_common *cpsw) ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_TC; - ndev->netns_local = true; + ndev->netns_immutable = true; ndev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c index f1d68153987e1..201fddcd3b1e8 100644 --- a/drivers/net/loopback.c +++ b/drivers/net/loopback.c @@ -172,7 +172,7 @@ static void gen_lo_setup(struct net_device *dev, dev->flags = IFF_LOOPBACK; dev->priv_flags |= IFF_LIVE_ADDR_CHANGE | IFF_NO_QUEUE; dev->lltx = true; - dev->netns_local = true; + dev->netns_immutable = true; netif_keep_dst(dev); dev->hw_features = NETIF_F_GSO_SOFTWARE; dev->features = NETIF_F_SG | NETIF_F_FRAGLIST diff --git a/drivers/net/net_failover.c b/drivers/net/net_failover.c index 54c8b9d5b5fcf..5b50d9186f121 100644 --- a/drivers/net/net_failover.c +++ b/drivers/net/net_failover.c @@ -734,7 +734,7 @@ struct failover *net_failover_create(struct net_device *standby_dev) failover_dev->lltx = true; /* Don't allow failover devices to change network namespaces. */ - failover_dev->netns_local = true; + failover_dev->netns_immutable = true; failover_dev->hw_features = FAILOVER_VLAN_FEATURES | NETIF_F_HW_VLAN_CTAG_TX | diff --git a/drivers/net/team/team_core.c b/drivers/net/team/team_core.c index 78edb8186b6d0..fb917560d0a24 100644 --- a/drivers/net/team/team_core.c +++ b/drivers/net/team/team_core.c @@ -2203,7 +2203,7 @@ static void team_setup(struct net_device *dev) dev->lltx = true; /* Don't allow team devices to change network namespaces. */ - dev->netns_local = true; + dev->netns_immutable = true; dev->features |= NETIF_F_GRO; diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c index 849c3ced2690e..36cf6191335ea 100644 --- a/drivers/net/vrf.c +++ b/drivers/net/vrf.c @@ -1617,7 +1617,7 @@ static void vrf_setup(struct net_device *dev) dev->lltx = true; /* don't allow vrf devices to change network namespaces. */ - dev->netns_local = true; + dev->netns_immutable = true; /* does not make sense for a VLAN to be added to a vrf device */ dev->features |= NETIF_F_VLAN_CHALLENGED; diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 26a0c4e4d963d..b8728d67ea91d 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2021,7 +2021,7 @@ enum netdev_reg_state { * regardless of source, even if those aren't * HWTSTAMP_SOURCE_NETDEV * @change_proto_down: device supports setting carrier via IFLA_PROTO_DOWN - * @netns_local: interface can't change network namespaces + * @netns_immutable: interface can't change network namespaces * @fcoe_mtu: device supports maximum FCoE MTU, 2158 bytes * * @net_notifier_list: List of per-net netdev notifier block @@ -2429,7 +2429,7 @@ struct net_device { /* priv_flags_slow, ungrouped to save space */ unsigned long see_all_hwtstamp_requests:1; unsigned long change_proto_down:1; - unsigned long netns_local:1; + unsigned long netns_immutable:1; unsigned long fcoe_mtu:1; struct list_head net_notifier_list; diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index d893c80132616..e190fa954f228 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -1037,7 +1037,7 @@ static void batadv_softif_init_early(struct net_device *dev) dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; dev->priv_flags |= IFF_NO_QUEUE; dev->lltx = true; - dev->netns_local = true; + dev->netns_immutable = true; /* can't call min_mtu, because the needed variables * have not been initialized yet diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index 0ab4613aa07ad..9d8c72ed01aba 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -488,7 +488,7 @@ void br_dev_setup(struct net_device *dev) SET_NETDEV_DEVTYPE(dev, &br_type); dev->priv_flags = IFF_EBRIDGE | IFF_NO_QUEUE; dev->lltx = true; - dev->netns_local = true; + dev->netns_immutable = true; dev->features = COMMON_FEATURES | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX; diff --git a/net/core/dev.c b/net/core/dev.c index d6d68a2d2355a..357ae88064a5f 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -12151,7 +12151,7 @@ int __dev_change_net_namespace(struct net_device *dev, struct net *net, /* Don't allow namespace local devices to be moved. */ err = -EINVAL; - if (dev->netns_local) + if (dev->netns_immutable) goto out; /* Ensure the device has been registered */ @@ -12533,7 +12533,7 @@ static void __net_exit default_device_exit_net(struct net *net) char fb_name[IFNAMSIZ]; /* Ignore unmoveable devices (i.e. loopback) */ - if (dev->netns_local) + if (dev->netns_immutable) continue; /* Leave virtual devices for the generic cleanup */ diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c index b6fb18469439a..c6f8614e9ed1f 100644 --- a/net/hsr/hsr_device.c +++ b/net/hsr/hsr_device.c @@ -643,7 +643,7 @@ void hsr_dev_setup(struct net_device *dev) /* Not sure about this. Taken from bridge code. netdevice.h says * it means "Does not change network namespaces". */ - dev->netns_local = true; + dev->netns_immutable = true; dev->needs_free_netdev = true; diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c index ee318d46817d4..9a9da74b0a4fa 100644 --- a/net/ieee802154/6lowpan/core.c +++ b/net/ieee802154/6lowpan/core.c @@ -116,7 +116,7 @@ static void lowpan_setup(struct net_device *ldev) ldev->netdev_ops = &lowpan_netdev_ops; ldev->header_ops = &lowpan_header_ops; ldev->needs_free_netdev = true; - ldev->netns_local = true; + ldev->netns_immutable = true; } static int lowpan_validate(struct nlattr *tb[], struct nlattr *data[], diff --git a/net/ieee802154/core.c b/net/ieee802154/core.c index 88adb04e40722..89b671b12600f 100644 --- a/net/ieee802154/core.c +++ b/net/ieee802154/core.c @@ -226,11 +226,11 @@ int cfg802154_switch_netns(struct cfg802154_registered_device *rdev, list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { if (!wpan_dev->netdev) continue; - wpan_dev->netdev->netns_local = false; + wpan_dev->netdev->netns_immutable = false; err = dev_change_net_namespace(wpan_dev->netdev, net, "wpan%d"); if (err) break; - wpan_dev->netdev->netns_local = true; + wpan_dev->netdev->netns_immutable = true; } if (err) { @@ -242,11 +242,11 @@ int cfg802154_switch_netns(struct cfg802154_registered_device *rdev, list) { if (!wpan_dev->netdev) continue; - wpan_dev->netdev->netns_local = false; + wpan_dev->netdev->netns_immutable = false; err = dev_change_net_namespace(wpan_dev->netdev, net, "wpan%d"); WARN_ON(err); - wpan_dev->netdev->netns_local = true; + wpan_dev->netdev->netns_immutable = true; } return err; @@ -291,7 +291,7 @@ static int cfg802154_netdev_notifier_call(struct notifier_block *nb, switch (state) { /* TODO NETDEV_DEVTYPE */ case NETDEV_REGISTER: - dev->netns_local = true; + dev->netns_immutable = true; wpan_dev->identifier = ++rdev->wpan_dev_id; list_add_rcu(&wpan_dev->list, &rdev->wpan_dev_list); rdev->devlist_generation++; diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index 011f2a5aab3b9..4b06dc7e04f2f 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -1162,7 +1162,7 @@ int ip_tunnel_init_net(struct net *net, unsigned int ip_tnl_net_id, * Allowing to move it to another netns is clearly unsafe. */ if (!IS_ERR(itn->fb_tunnel_dev)) { - itn->fb_tunnel_dev->netns_local = true; + itn->fb_tunnel_dev->netns_immutable = true; itn->fb_tunnel_dev->mtu = ip_tunnel_bind_dev(itn->fb_tunnel_dev); ip_tunnel_add(itn, netdev_priv(itn->fb_tunnel_dev)); itn->type = itn->fb_tunnel_dev->type; diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 21ae7594a8525..b81c8131e23fc 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -563,7 +563,7 @@ static void reg_vif_setup(struct net_device *dev) dev->flags = IFF_NOARP; dev->netdev_ops = ®_vif_netdev_ops; dev->needs_free_netdev = true; - dev->netns_local = true; + dev->netns_immutable = true; } static struct net_device *ipmr_reg_vif(struct net *net, struct mr_table *mrt) diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index d31a4ce3b19ff..c6ebb6a6d3908 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -1620,7 +1620,7 @@ static int __net_init ip6gre_init_net(struct net *net) /* FB netdevice is special: we have one, and only one per netns. * Allowing to move it to another netns is clearly unsafe. */ - ign->fb_tunnel_dev->netns_local = true; + ign->fb_tunnel_dev->netns_immutable = true; ip6gre_fb_tunnel_init(ign->fb_tunnel_dev); ign->fb_tunnel_dev->rtnl_link_ops = &ip6gre_link_ops; diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 89d206731af00..170a6ac30889a 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -2265,7 +2265,7 @@ static int __net_init ip6_tnl_init_net(struct net *net) /* FB netdevice is special: we have one, and only one per netns. * Allowing to move it to another netns is clearly unsafe. */ - ip6n->fb_tnl_dev->netns_local = true; + ip6n->fb_tnl_dev->netns_immutable = true; err = ip6_fb_tnl_dev_init(ip6n->fb_tnl_dev); if (err < 0) diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index 535e9f72514c0..e8ade93a0f0eb 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -668,7 +668,7 @@ static void reg_vif_setup(struct net_device *dev) dev->flags = IFF_NOARP; dev->netdev_ops = ®_vif_netdev_ops; dev->needs_free_netdev = true; - dev->netns_local = true; + dev->netns_immutable = true; } static struct net_device *ip6mr_reg_vif(struct net *net, struct mr_table *mrt) diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index f7b59bc957d3b..6f04703fe6386 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -1859,7 +1859,7 @@ static int __net_init sit_init_net(struct net *net) /* FB netdevice is special: we have one, and only one per netns. * Allowing to move it to another netns is clearly unsafe. */ - sitn->fb_tunnel_dev->netns_local = true; + sitn->fb_tunnel_dev->netns_immutable = true; t = netdev_priv(sitn->fb_tunnel_dev); t->net = net; diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c index 2412d7813d244..125d310871e93 100644 --- a/net/openvswitch/vport-internal_dev.c +++ b/net/openvswitch/vport-internal_dev.c @@ -149,7 +149,7 @@ static struct vport *internal_dev_create(const struct vport_parms *parms) /* Restrict bridge port to current netns. */ if (vport->port_no == OVSP_LOCAL) - vport->dev->netns_local = true; + vport->dev->netns_immutable = true; rtnl_lock(); err = register_netdevice(vport->dev); diff --git a/net/wireless/core.c b/net/wireless/core.c index 12b780de8779c..15bbc9d06c9e9 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -162,11 +162,11 @@ int cfg80211_switch_netns(struct cfg80211_registered_device *rdev, list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) { if (!wdev->netdev) continue; - wdev->netdev->netns_local = false; + wdev->netdev->netns_immutable = false; err = dev_change_net_namespace(wdev->netdev, net, "wlan%d"); if (err) break; - wdev->netdev->netns_local = true; + wdev->netdev->netns_immutable = true; } if (err) { @@ -178,11 +178,11 @@ int cfg80211_switch_netns(struct cfg80211_registered_device *rdev, list) { if (!wdev->netdev) continue; - wdev->netdev->netns_local = false; + wdev->netdev->netns_immutable = false; err = dev_change_net_namespace(wdev->netdev, net, "wlan%d"); WARN_ON(err); - wdev->netdev->netns_local = true; + wdev->netdev->netns_immutable = true; } return err; @@ -1513,7 +1513,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb, SET_NETDEV_DEVTYPE(dev, &wiphy_type); wdev->netdev = dev; /* can only change netns with wiphy */ - dev->netns_local = true; + dev->netns_immutable = true; cfg80211_init_wdev(wdev); break; diff --git a/tools/testing/selftests/net/forwarding/README b/tools/testing/selftests/net/forwarding/README index a652429bfd53c..7b41cff993adb 100644 --- a/tools/testing/selftests/net/forwarding/README +++ b/tools/testing/selftests/net/forwarding/README @@ -6,7 +6,7 @@ to easily create and test complex environments. Unfortunately, these namespaces can not be used with actual switching ASICs, as their ports can not be migrated to other network namespaces -(dev->netns_local) and most of them probably do not support the +(dev->netns_immutable) and most of them probably do not support the L1-separation provided by namespaces. However, a similar kind of flexibility can be achieved by using VRFs and