diff options
65 files changed, 832 insertions, 631 deletions
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index 8c79bad2a9a5..4f2e6910c623 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -952,7 +952,7 @@ static int alb_upper_dev_walk(struct net_device *upper, void *_data) struct bond_vlan_tag *tags; if (is_vlan_dev(upper) && - bond->nest_level == vlan_get_encap_level(upper) - 1) { + bond->dev->lower_level == upper->lower_level - 1) { if (upper->addr_assign_type == NET_ADDR_STOLEN) { alb_send_lp_vid(slave, mac_addr, vlan_dev_vlan_proto(upper), diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 21d8fcc83c9c..a48950b81434 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1733,8 +1733,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, goto err_upper_unlink; } - bond->nest_level = dev_get_nest_level(bond_dev) + 1; - /* If the mode uses primary, then the following is handled by * bond_change_active_slave(). */ @@ -1816,7 +1814,8 @@ err_detach: slave_disable_netpoll(new_slave); err_close: - slave_dev->priv_flags &= ~IFF_BONDING; + if (!netif_is_bond_master(slave_dev)) + slave_dev->priv_flags &= ~IFF_BONDING; dev_close(slave_dev); err_restore_mac: @@ -1956,9 +1955,6 @@ static int __bond_release_one(struct net_device *bond_dev, if (!bond_has_slaves(bond)) { bond_set_carrier(bond); eth_hw_addr_random(bond_dev); - bond->nest_level = SINGLE_DEPTH_NESTING; - } else { - bond->nest_level = dev_get_nest_level(bond_dev) + 1; } unblock_netpoll_tx(); @@ -2017,7 +2013,8 @@ static int __bond_release_one(struct net_device *bond_dev, else dev_set_mtu(slave_dev, slave->original_mtu); - slave_dev->priv_flags &= ~IFF_BONDING; + if (!netif_is_bond_master(slave_dev)) + slave_dev->priv_flags &= ~IFF_BONDING; bond_free_slave(slave); @@ -3442,13 +3439,6 @@ static void bond_fold_stats(struct rtnl_link_stats64 *_res, } } -static int bond_get_nest_level(struct net_device *bond_dev) -{ - struct bonding *bond = netdev_priv(bond_dev); - - return bond->nest_level; -} - static void bond_get_stats(struct net_device *bond_dev, struct rtnl_link_stats64 *stats) { @@ -3457,7 +3447,7 @@ static void bond_get_stats(struct net_device *bond_dev, struct list_head *iter; struct slave *slave; - spin_lock_nested(&bond->stats_lock, bond_get_nest_level(bond_dev)); + spin_lock(&bond->stats_lock); memcpy(stats, &bond->bond_stats, sizeof(*stats)); rcu_read_lock(); @@ -4268,7 +4258,6 @@ static const struct net_device_ops bond_netdev_ops = { .ndo_neigh_setup = bond_neigh_setup, .ndo_vlan_rx_add_vid = bond_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = bond_vlan_rx_kill_vid, - .ndo_get_lock_subclass = bond_get_nest_level, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_netpoll_setup = bond_netpoll_setup, .ndo_netpoll_cleanup = bond_netpoll_cleanup, @@ -4295,8 +4284,6 @@ void bond_setup(struct net_device *bond_dev) { struct bonding *bond = netdev_priv(bond_dev); - spin_lock_init(&bond->mode_lock); - spin_lock_init(&bond->stats_lock); bond->params = bonding_defaults; /* Initialize pointers */ @@ -4365,6 +4352,7 @@ static void bond_uninit(struct net_device *bond_dev) list_del(&bond->bond_list); + lockdep_unregister_key(&bond->stats_lock_key); bond_debug_unregister(bond); } @@ -4768,8 +4756,10 @@ static int bond_init(struct net_device *bond_dev) if (!bond->wq) return -ENOMEM; - bond->nest_level = SINGLE_DEPTH_NESTING; - netdev_lockdep_set_classes(bond_dev); + spin_lock_init(&bond->mode_lock); + spin_lock_init(&bond->stats_lock); + lockdep_register_key(&bond->stats_lock_key); + lockdep_set_class(&bond->stats_lock, &bond->stats_lock_key); list_add_tail(&bond->bond_list, &bn->dev_list); diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c index b3da81e90132..928bfea5457b 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/sge.c +++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c @@ -3791,15 +3791,11 @@ int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq, * write the CIDX Updates into the Status Page at the end of the * TX Queue. */ - c.autoequiqe_to_viid = htonl((dbqt - ? FW_EQ_ETH_CMD_AUTOEQUIQE_F - : FW_EQ_ETH_CMD_AUTOEQUEQE_F) | + c.autoequiqe_to_viid = htonl(FW_EQ_ETH_CMD_AUTOEQUEQE_F | FW_EQ_ETH_CMD_VIID_V(pi->viid)); c.fetchszm_to_iqid = - htonl(FW_EQ_ETH_CMD_HOSTFCMODE_V(dbqt - ? HOSTFCMODE_INGRESS_QUEUE_X - : HOSTFCMODE_STATUS_PAGE_X) | + htonl(FW_EQ_ETH_CMD_HOSTFCMODE_V(HOSTFCMODE_STATUS_PAGE_X) | FW_EQ_ETH_CMD_PCIECHN_V(pi->tx_chan) | FW_EQ_ETH_CMD_FETCHRO_F | FW_EQ_ETH_CMD_IQID_V(iqid)); diff --git a/drivers/net/ethernet/cortina/gemini.h b/drivers/net/ethernet/cortina/gemini.h index 0b12f89bf89a..9fdf77d5eb37 100644 --- a/drivers/net/ethernet/cortina/gemini.h +++ b/drivers/net/ethernet/cortina/gemini.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* Register definitions for Gemini GMAC Ethernet device driver * * Copyright (C) 2006 Storlink, Corp. diff --git a/drivers/net/ethernet/marvell/mvneta_bm.h b/drivers/net/ethernet/marvell/mvneta_bm.h index c8425d35c049..e47783ce77e0 100644 --- a/drivers/net/ethernet/marvell/mvneta_bm.h +++ b/drivers/net/ethernet/marvell/mvneta_bm.h @@ -160,16 +160,23 @@ static inline u32 mvneta_bm_pool_get_bp(struct mvneta_bm *priv, (bm_pool->id << MVNETA_BM_POOL_ACCESS_OFFS)); } #else -void mvneta_bm_pool_destroy(struct mvneta_bm *priv, - struct mvneta_bm_pool *bm_pool, u8 port_map) {} -void mvneta_bm_bufs_free(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, - u8 port_map) {} -int mvneta_bm_construct(struct hwbm_pool *hwbm_pool, void *buf) { return 0; } -int mvneta_bm_pool_refill(struct mvneta_bm *priv, - struct mvneta_bm_pool *bm_pool) {return 0; } -struct mvneta_bm_pool *mvneta_bm_pool_use(struct mvneta_bm *priv, u8 pool_id, - enum mvneta_bm_type type, u8 port_id, - int pkt_size) { return NULL; } +static inline void mvneta_bm_pool_destroy(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool, + u8 port_map) {} +static inline void mvneta_bm_bufs_free(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool, + u8 port_map) {} +static inline int mvneta_bm_construct(struct hwbm_pool *hwbm_pool, void *buf) +{ return 0; } +static inline int mvneta_bm_pool_refill(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool) +{ return 0; } +static inline struct mvneta_bm_pool *mvneta_bm_pool_use(struct mvneta_bm *priv, + u8 pool_id, + enum mvneta_bm_type type, + u8 port_id, + int pkt_size) +{ return NULL; } static inline void mvneta_bm_pool_put_bp(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, @@ -178,7 +185,8 @@ static inline void mvneta_bm_pool_put_bp(struct mvneta_bm *priv, static inline u32 mvneta_bm_pool_get_bp(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool) { return 0; } -struct mvneta_bm *mvneta_bm_get(struct device_node *node) { return NULL; } -void mvneta_bm_put(struct mvneta_bm *priv) {} +static inline struct mvneta_bm *mvneta_bm_get(struct device_node *node) +{ return NULL; } +static inline void mvneta_bm_put(struct mvneta_bm *priv) {} #endif /* CONFIG_MVNETA_BM */ #endif diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 3e78a727f3e6..c4c59d2e676e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -3160,7 +3160,7 @@ static int add_vlan_pop_action(struct mlx5e_priv *priv, struct mlx5_esw_flow_attr *attr, u32 *action) { - int nest_level = vlan_get_encap_level(attr->parse_attr->filter_dev); + int nest_level = attr->parse_attr->filter_dev->lower_level; struct flow_action_entry vlan_act = { .id = FLOW_ACTION_VLAN_POP, }; diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c index 1eef446036d6..79d72c88bbef 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c @@ -299,22 +299,6 @@ static void nfp_repr_clean(struct nfp_repr *repr) nfp_port_free(repr->port); } -static struct lock_class_key nfp_repr_netdev_xmit_lock_key; -static struct lock_class_key nfp_repr_netdev_addr_lock_key; - -static void nfp_repr_set_lockdep_class_one(struct net_device *dev, - struct netdev_queue *txq, - void *_unused) -{ - lockdep_set_class(&txq->_xmit_lock, &nfp_repr_netdev_xmit_lock_key); -} - -static void nfp_repr_set_lockdep_class(struct net_device *dev) -{ - lockdep_set_class(&dev->addr_list_lock, &nfp_repr_netdev_addr_lock_key); - netdev_for_each_tx_queue(dev, nfp_repr_set_lockdep_class_one, NULL); -} - int nfp_repr_init(struct nfp_app *app, struct net_device *netdev, u32 cmsg_port_id, struct nfp_port *port, struct net_device *pf_netdev) @@ -324,8 +308,6 @@ int nfp_repr_init(struct nfp_app *app, struct net_device *netdev, u32 repr_cap = nn->tlv_caps.repr_cap; int err; - nfp_repr_set_lockdep_class(netdev); - repr->port = port; repr->dst = metadata_dst_alloc(0, METADATA_HW_PORT_MUX, GFP_KERNEL); if (!repr->dst) diff --git a/drivers/net/hamradio/bpqether.c b/drivers/net/hamradio/bpqether.c index fbec711ff514..fbea6f232819 100644 --- a/drivers/net/hamradio/bpqether.c +++ b/drivers/net/hamradio/bpqether.c @@ -107,27 +107,6 @@ struct bpqdev { static LIST_HEAD(bpq_devices); -/* - * bpqether network devices are paired with ethernet devices below them, so - * form a special "super class" of normal ethernet devices; split their locks - * off into a separate class since they always nest. - */ -static struct lock_class_key bpq_netdev_xmit_lock_key; -static struct lock_class_key bpq_netdev_addr_lock_key; - -static void bpq_set_lockdep_class_one(struct net_device *dev, - struct netdev_queue *txq, - void *_unused) -{ - lockdep_set_class(&txq->_xmit_lock, &bpq_netdev_xmit_lock_key); -} - -static void bpq_set_lockdep_class(struct net_device *dev) -{ - lockdep_set_class(&dev->addr_list_lock, &bpq_netdev_addr_lock_key); - netdev_for_each_tx_queue(dev, bpq_set_lockdep_class_one, NULL); -} - /* ------------------------------------------------------------------------ */ @@ -498,7 +477,6 @@ static int bpq_new_device(struct net_device *edev) err = register_netdevice(ndev); if (err) goto error; - bpq_set_lockdep_class(ndev); /* List protected by RTNL */ list_add_rcu(&bpq->bpq_list, &bpq_devices); diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 39dddcd8b3cb..fd4fff57fd6e 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -2335,8 +2335,6 @@ static int netvsc_probe(struct hv_device *dev, NETIF_F_HW_VLAN_CTAG_RX; net->vlan_features = net->features; - netdev_lockdep_set_classes(net); - /* MTU range: 68 - 1500 or 65521 */ net->min_mtu = NETVSC_MTU_MIN; if (nvdev->nvsp_version >= NVSP_PROTOCOL_VERSION_2) diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c index 887bbba4631e..ba3dfac1d904 100644 --- a/drivers/net/ipvlan/ipvlan_main.c +++ b/drivers/net/ipvlan/ipvlan_main.c @@ -131,8 +131,6 @@ static int ipvlan_init(struct net_device *dev) dev->gso_max_segs = phy_dev->gso_max_segs; dev->hard_header_len = phy_dev->hard_header_len; - netdev_lockdep_set_classes(dev); - ipvlan->pcpu_stats = netdev_alloc_pcpu_stats(struct ipvl_pcpu_stats); if (!ipvlan->pcpu_stats) return -ENOMEM; diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c index cb7637364b40..afd8b2a08245 100644 --- a/drivers/net/macsec.c +++ b/drivers/net/macsec.c @@ -267,7 +267,6 @@ struct macsec_dev { struct pcpu_secy_stats __percpu *stats; struct list_head secys; struct gro_cells gro_cells; - unsigned int nest_level; }; /** @@ -2750,7 +2749,6 @@ static netdev_tx_t macsec_start_xmit(struct sk_buff *skb, #define MACSEC_FEATURES \ (NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST) -static struct lock_class_key macsec_netdev_addr_lock_key; static int macsec_dev_init(struct net_device *dev) { @@ -2958,11 +2956,6 @@ static int macsec_get_iflink(const struct net_device *dev) return macsec_priv(dev)->real_dev->ifindex; } -static int macsec_get_nest_level(struct net_device *dev) -{ - return macsec_priv(dev)->nest_level; -} - static const struct net_device_ops macsec_netdev_ops = { .ndo_init = macsec_dev_init, .ndo_uninit = macsec_dev_uninit, @@ -2976,7 +2969,6 @@ static const struct net_device_ops macsec_netdev_ops = { .ndo_start_xmit = macsec_start_xmit, .ndo_get_stats64 = macsec_get_stats64, .ndo_get_iflink = macsec_get_iflink, - .ndo_get_lock_subclass = macsec_get_nest_level, }; static const struct device_type macsec_type = { @@ -3001,12 +2993,10 @@ static const struct nla_policy macsec_rtnl_policy[IFLA_MACSEC_MAX + 1] = { static void macsec_free_netdev(struct net_device *dev) { struct macsec_dev *macsec = macsec_priv(dev); - struct net_device *real_dev = macsec->real_dev; free_percpu(macsec->stats); free_percpu(macsec->secy.tx_sc.stats); - dev_put(real_dev); } static void macsec_setup(struct net_device *dev) @@ -3261,14 +3251,6 @@ static int macsec_newlink(struct net *net, struct net_device *dev, if (err < 0) return err; - dev_hold(real_dev); - - macsec->nest_level = dev_get_nest_level(real_dev) + 1; - netdev_lockdep_set_classes(dev); - lockdep_set_class_and_subclass(&dev->addr_list_lock, - &macsec_netdev_addr_lock_key, - macsec_get_nest_level(dev)); - err = netdev_upper_dev_link(real_dev, dev, extack); if (err < 0) goto unregister; diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 940192c057b6..34fc59bd1e20 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -852,8 +852,6 @@ static int macvlan_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) * "super class" of normal network devices; split their locks off into a * separate class since they always nest. */ -static struct lock_class_key macvlan_netdev_addr_lock_key; - #define ALWAYS_ON_OFFLOADS \ (NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_GSO_SOFTWARE | \ NETIF_F_GSO_ROBUST | NETIF_F_GSO_ENCAP_ALL) @@ -869,19 +867,6 @@ static struct lock_class_key macvlan_netdev_addr_lock_key; #define MACVLAN_STATE_MASK \ ((1<<__LINK_STATE_NOCARRIER) | (1<<__LINK_STATE_DORMANT)) -static int macvlan_get_nest_level(struct net_device *dev) -{ - return ((struct macvlan_dev *)netdev_priv(dev))->nest_level; -} - -static void macvlan_set_lockdep_class(struct net_device *dev) -{ - netdev_lockdep_set_classes(dev); - lockdep_set_class_and_subclass(&dev->addr_list_lock, - &macvlan_netdev_addr_lock_key, - macvlan_get_nest_level(dev)); -} - static int macvlan_init(struct net_device *dev) { struct macvlan_dev *vlan = netdev_priv(dev); @@ -900,8 +885,6 @@ static int macvlan_init(struct net_device *dev) dev->gso_max_segs = lowerdev->gso_max_segs; dev->hard_header_len = lowerdev->hard_header_len; - macvlan_set_lockdep_class(dev); - vlan->pcpu_stats = netdev_alloc_pcpu_stats(struct vlan_pcpu_stats); if (!vlan->pcpu_stats) return -ENOMEM; @@ -1161,7 +1144,6 @@ static const struct net_device_ops macvlan_netdev_ops = { .ndo_fdb_add = macvlan_fdb_add, .ndo_fdb_del = macvlan_fdb_del, .ndo_fdb_dump = ndo_dflt_fdb_dump, - .ndo_get_lock_subclass = macvlan_get_nest_level, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = macvlan_dev_poll_controller, .ndo_netpoll_setup = macvlan_dev_netpoll_setup, @@ -1445,7 +1427,6 @@ int macvlan_common_newlink(struct net *src_net, struct net_device *dev, vlan->dev = dev; vlan->port = port; vlan->set_features = MACVLAN_FEATURES; - vlan->nest_level = dev_get_nest_level(lowerdev) + 1; vlan->mode = MACVLAN_MODE_VEPA; if (data && data[IFLA_MACVLAN_MODE]) diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c index dc3d92d340c4..b73298250793 100644 --- a/drivers/net/phy/smsc.c +++ b/drivers/net/phy/smsc.c @@ -327,6 +327,7 @@ static struct phy_driver smsc_phy_driver[] = { .name = "SMSC LAN8740", /* PHY_BASIC_FEATURES */ + .flags = PHY_RST_AFTER_CLK_EN, .probe = smsc_phy_probe, diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index 9a1b006904a7..61824bbb5588 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -1324,8 +1324,6 @@ static int ppp_dev_init(struct net_device *dev) { struct ppp *ppp; - netdev_lockdep_set_classes(dev); - ppp = netdev_priv(dev); /* Let the netdevice take a reference on the ppp file. This ensures * that ppp_destroy_interface() won't run before the device gets diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index e8089def5a46..8156b33ee3e7 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -1615,7 +1615,6 @@ static int team_init(struct net_device *dev) int err; team->dev = dev; - mutex_init(&team->lock); team_set_no_mode(team); team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats); @@ -1642,7 +1641,8 @@ static int team_init(struct net_device *dev) goto err_options_register; netif_carrier_off(dev); - netdev_lockdep_set_classes(dev); + lockdep_register_key(&team->team_lock_key); + __mutex_init(&team->lock, "team->team_lock_key", &team->team_lock_key); return 0; @@ -1673,6 +1673,7 @@ static void team_uninit(struct net_device *dev) team_queue_override_fini(team); mutex_unlock(&team->lock); netdev_change_features(dev); + lockdep_unregister_key(&team->team_lock_key); } static void team_destructor(struct net_device *dev) @@ -1976,8 +1977,15 @@ static int team_del_slave(struct net_device *dev, struct net_device *port_dev) err = team_port_del(team, port_dev); mutex_unlock(&team->lock); - if (!err) - netdev_change_features(dev); + if (err) + return err; + + if (netif_is_team_master(port_dev)) { + lockdep_unregister_key(&team->team_lock_key); + lockdep_register_key(&team->team_lock_key); + lockdep_set_class(&team->lock, &team->team_lock_key); + } + netdev_change_features(dev); return err; } diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c index ee52bde058df..b8228f50bc94 100644 --- a/drivers/net/vrf.c +++ b/drivers/net/vrf.c @@ -865,7 +865,6 @@ static int vrf_dev_init(struct net_device *dev) /* similarly, oper state is irrelevant; set to up to avoid confusion */ dev->operstate = IF_OPER_UP; - netdev_lockdep_set_classes(dev); return 0; out_rth: diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 3d9bcc957f7d..fcf028220bca 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -3566,10 +3566,13 @@ static int __vxlan_dev_create(struct net *net, struct net_device *dev, { struct vxlan_net *vn = net_generic(net, vxlan_net_id); struct vxlan_dev *vxlan = netdev_priv(dev); + struct net_device *remote_dev = NULL; struct vxlan_fdb *f = NULL; bool unregister = false; + struct vxlan_rdst *dst; int err; + dst = &vxlan->default_dst; err = vxlan_dev_configure(net, dev, conf, false, extack); if (err) return err; @@ -3577,14 +3580,14 @@ static int __vxlan_dev_create(struct net *net, struct net_device *dev, dev->ethtool_ops = &vxlan_ethtool_ops; /* create an fdb entry for a valid default destination */ - if (!vxlan_addr_any(&vxlan->default_dst.remote_ip)) { + if (!vxlan_addr_any(&dst->remote_ip)) { err = vxlan_fdb_create(vxlan, all_zeros_mac, - &vxlan->default_dst.remote_ip, + &dst->remote_ip, NUD_REACHABLE | NUD_PERMANENT, vxlan->cfg.dst_port, - vxlan->default_dst.remote_vni, - vxlan->default_dst.remote_vni, - vxlan->default_dst.remote_ifindex, + dst->remote_vni, + dst->remote_vni, + dst->remote_ifindex, NTF_SELF, &f); if (err) return err; @@ -3595,26 +3598,41 @@ static int __vxlan_dev_create(struct net *net, struct net_device *dev, goto errout; unregister = true; + if (dst->remote_ifindex) { + remote_dev = __dev_get_by_index(net, dst->remote_ifindex); + if (!remote_dev) + goto errout; + + err = netdev_upper_dev_link(remote_dev, dev, extack); + if (err) + goto errout; + } + err = rtnl_configure_link(dev, NULL); if (err) - goto errout; + goto unlink; if (f) { - vxlan_fdb_insert(vxlan, all_zeros_mac, - vxlan->default_dst.remote_vni, f); + vxlan_fdb_insert(vxlan, all_zeros_mac, dst->remote_vni, f); /* notify default fdb entry */ err = vxlan_fdb_notify(vxlan, f, first_remote_rtnl(f), RTM_NEWNEIGH, true, extack); if (err) { vxlan_fdb_destroy(vxlan, f, false, false); + if (remote_dev) + netdev_upper_dev_unlink(remote_dev, dev); goto unregister; } } list_add(&vxlan->next, &vn->vxlan_list); + if (remote_dev) + dst->remote_dev = remote_dev; return 0; - +unlink: + if (remote_dev) + netdev_upper_dev_unlink(remote_dev, dev); errout: /* unregister_netdevice() destroys the default FDB entry with deletion * notification. But the addition notification was not sent yet, so @@ -3932,11 +3950,12 @@ static int vxlan_changelink(struct net_device *dev, struct nlattr *tb[], struct netlink_ext_ack *extack) { struct vxlan_dev *vxlan = netdev_priv(dev); - struct vxlan_rdst *dst = &vxlan->default_dst; struct net_device *lowerdev; struct vxlan_config conf; + struct vxlan_rdst *dst; int err; + dst = &vxlan->default_dst; err = vxlan_nl2conf(tb, data, dev, &conf, true, extack); if (err) return err; @@ -3946,6 +3965,11 @@ static int vxlan_changelink(struct net_device *dev, struct nlattr *tb[], if (err) return err; + err = netdev_adjacent_change_prepare(dst->remote_dev, lowerdev, dev, + extack); + if (err) + return err; + /* handle default dst entry */ if (!vxlan_addr_equal(&conf.remote_ip, &dst->remote_ip)) { u32 hash_index = fdb_head_index(vxlan, all_zeros_mac, conf.vni); @@ -3962,6 +3986,8 @@ static int vxlan_changelink(struct net_device *dev, struct nlattr *tb[], NTF_SELF, true, extack); if (err) { spin_unlock_bh(&vxlan->hash_lock[hash_index]); + netdev_adjacent_change_abort(dst->remote_dev, + lowerdev, dev); return err; } } @@ -3979,6 +4005,11 @@ static int vxlan_changelink(struct net_device *dev, struct nlattr *tb[], if (conf.age_interval != vxlan->cfg.age_interval) mod_timer(&vxlan->age_timer, jiffies); + netdev_adjacent_change_commit(dst->remote_dev, lowerdev, dev); + if (lowerdev && lowerdev != dst->remote_dev) + dst->remote_dev = lowerdev; + + netdev_update_lockdep_key(lowerdev); vxlan_config_apply(dev, &conf, lowerdev, vxlan->net, true); return 0; } @@ -3991,6 +4022,8 @@ static void vxlan_dellink(struct net_device *dev, struct list_head *head) list_del(&vxlan->next); unregister_netdevice_queue(dev, head); + if (vxlan->default_dst.remote_dev) + netdev_upper_dev_unlink(vxlan->default_dst.remote_dev, dev); } static size_t vxlan_get_size(const struct net_device *dev) diff --git a/drivers/net/wireless/intersil/hostap/hostap_hw.c b/drivers/net/wireless/intersil/hostap/hostap_hw.c index 158a3d762e55..e323e9a5999f 100644 --- a/drivers/net/wireless/intersil/hostap/hostap_hw.c +++ b/drivers/net/wireless/intersil/hostap/hostap_hw.c @@ -3041,30 +3041,6 @@ static void prism2_clear_set_tim_queue(local_info_t *local) } } - -/* - * HostAP uses two layers of net devices, where the inner - * layer gets called all the time from the outer layer. - * This is a natural nesting, which needs a split lock type. - */ -static struct lock_class_key hostap_netdev_xmit_lock_key; -static struct lock_class_key hostap_netdev_addr_lock_key; - -static void prism2_set_lockdep_class_one(struct net_device *dev, - struct netdev_queue *txq, - void *_unused) -{ - lockdep_set_class(&txq->_xmit_lock, - &hostap_netdev_xmit_lock_key); -} - -static void prism2_set_lockdep_class(struct net_device *dev) -{ - lockdep_set_class(&dev->addr_list_lock, - &hostap_netdev_addr_lock_key); - netdev_for_each_tx_queue(dev, prism2_set_lockdep_class_one, NULL); -} - static struct net_device * prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx, struct device *sdev) @@ -3223,7 +3199,6 @@ while (0) if (ret >= 0) ret = register_netdevice(dev); - prism2_set_lockdep_class(dev); rtnl_unlock(); if (ret < 0) { printk(KERN_WARNING "%s: register netdevice failed!\n", diff --git a/drivers/net/wireless/virt_wifi.c b/drivers/net/wireless/virt_wifi.c index be92e1220284..7997cc6de334 100644 --- a/drivers/net/wireless/virt_wifi.c +++ b/drivers/net/wireless/virt_wifi.c @@ -548,6 +548,7 @@ static int virt_wifi_newlink(struct net *src_net, struct net_device *dev, priv->is_connected = false; priv->is_up = false; INIT_DELAYED_WORK(&priv->connect, virt_wifi_connect_complete); + __module_get(THIS_MODULE); return 0; unregister_netdev: @@ -578,6 +579,7 @@ static void virt_wifi_dellink(struct net_device *dev, netdev_upper_dev_unlink(priv->lowerdev, dev); unregister_netdevice_queue(dev, head); + module_put(THIS_MODULE); /* Deleting the wiphy is handled in the module destructor. */ } @@ -590,6 +592,42 @@ static struct rtnl_link_ops virt_wifi_link_ops = { .priv_size = sizeof(struct virt_wifi_netdev_priv), }; +static bool netif_is_virt_wifi_dev(const struct net_device *dev) +{ + return rcu_access_pointer(dev->rx_handler) == virt_wifi_rx_handler; +} + +static int virt_wifi_event(struct notifier_block *this, unsigned long event, + void *ptr) +{ + struct net_device *lower_dev = netdev_notifier_info_to_dev(ptr); + struct virt_wifi_netdev_priv *priv; + struct net_device *upper_dev; + LIST_HEAD(list_kill); + + if (!netif_is_virt_wifi_dev(lower_dev)) + return NOTIFY_DONE; + + switch (event) { + case NETDEV_UNREGISTER: + priv = rtnl_dereference(lower_dev->rx_handler_data); + if (!priv) + return NOTIFY_DONE; + + upper_dev = priv->upperdev; + + upper_dev->rtnl_link_ops->dellink(upper_dev, &list_kill); + unregister_netdevice_many(&list_kill); + break; + } + + return NOTIFY_DONE; +} + +static struct notifier_block virt_wifi_notifier = { + .notifier_call = virt_wifi_event, +}; + /* Acquires and releases the rtnl lock. */ static int __init virt_wifi_init_module(void) { @@ -598,14 +636,25 @@ static int __init virt_wifi_init_module(void) /* Guaranteed to be locallly-administered and not multicast. */ eth_random_addr(fake_router_bssid); + err = register_netdevice_notifier(&virt_wifi_notifier); + if (err) + return err; + + err = -ENOMEM; common_wiphy = virt_wifi_make_wiphy(); if (!common_wiphy) - return -ENOMEM; + goto notifier; err = rtnl_link_register(&virt_wifi_link_ops); if (err) - virt_wifi_destroy_wiphy(common_wiphy); + goto destroy_wiphy; + return 0; + +destroy_wiphy: + virt_wifi_destroy_wiphy(common_wiphy); +notifier: + unregister_netdevice_notifier(&virt_wifi_notifier); return err; } @@ -615,6 +664,7 @@ static void __exit virt_wifi_cleanup_module(void) /* Will delete any devices that depend on the wiphy. */ rtnl_link_unregister(&virt_wifi_link_ops); virt_wifi_destroy_wiphy(common_wiphy); + unregister_netdevice_notifier(&virt_wifi_notifier); } module_init(virt_wifi_init_module); diff --git a/include/linux/filter.h b/include/linux/filter.h index 2ce57645f3cd..0367a75f873b 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -1099,7 +1099,6 @@ static inline void bpf_get_prog_name(const struct bpf_prog *prog, char *sym) #endif /* CONFIG_BPF_JIT */ -void bpf_prog_kallsyms_del_subprogs(struct bpf_prog *fp); void bpf_prog_kallsyms_del_all(struct bpf_prog *fp); #define BPF_ANC BIT(15) diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h index 2e55e4cdbd8a..a367ead4bf4b 100644 --- a/include/linux/if_macvlan.h +++ b/include/linux/if_macvlan.h @@ -29,7 +29,6 @@ struct macvlan_dev { netdev_features_t set_features; enum macvlan_mode mode; u16 flags; - int nest_level; unsigned int macaddr_count; #ifdef CONFIG_NET_POLL_CONTROLLER struct netpoll *netpoll; diff --git a/include/linux/if_team.h b/include/linux/if_team.h index 06faa066496f..ec7e4bd07f82 100644 --- a/include/linux/if_team.h +++ b/include/linux/if_team.h @@ -223,6 +223,7 @@ struct team { atomic_t count_pending; struct delayed_work dw; } mcast_rejoin; + struct lock_class_key team_lock_key; long mode_priv[TEAM_MODE_PRIV_LONGS]; }; diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 244278d5c222..b05e855f1ddd 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -182,7 +182,6 @@ struct vlan_dev_priv { #ifdef CONFIG_NET_POLL_CONTROLLER struct netpoll *netpoll; #endif - unsigned int nest_level; }; static inline struct vlan_dev_priv *vlan_dev_priv(const struct net_device *dev) @@ -221,11 +220,6 @@ extern void vlan_vids_del_by_dev(struct net_device *dev, extern bool vlan_uses_dev(const struct net_device *dev); -static inline int vlan_get_encap_level(struct net_device *dev) -{ - BUG_ON(!is_vlan_dev(dev)); - return vlan_dev_priv(dev)->nest_level; -} #else static inline struct net_device * __vlan_find_dev_deep_rcu(struct net_device *real_dev, @@ -295,11 +289,6 @@ static inline bool vlan_uses_dev(const struct net_device *dev) { return false; } -static inline int vlan_get_encap_level(struct net_device *dev) -{ - BUG(); - return 0; -} #endif /** diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 9eda1c31d1f7..c20f190b4c18 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -925,6 +925,7 @@ struct dev_ifalias { struct devlink; struct tlsdev_ops; + /* * This structure defines the management hooks for network devices. * The following hooks can be defined; unless noted otherwise, they are @@ -1421,7 +1422,6 @@ struct net_device_ops { void (*ndo_dfwd_del_station)(struct net_device *pdev, void *priv); - int (*ndo_get_lock_subclass)(struct net_device *dev); int (*ndo_set_tx_maxrate)(struct net_device *dev, int queue_index, u32 maxrate); @@ -1649,6 +1649,8 @@ enum netdev_priv_flags { * @perm_addr: Permanent hw address * @addr_assign_type: Hw address assignment type * @addr_len: Hardware address length + * @upper_level: Maximum depth level of upper devices. + * @lower_level: Maximum depth level of lower devices. * @neigh_priv_len: Used in neigh_alloc() * @dev_id: Used to differentiate devices that share * the same link layer address @@ -1758,9 +1760,13 @@ enum netdev_priv_flags { * @phydev: Physical device may attach itself * for hardware timestamping * @sfp_bus: attached &struct sfp_bus structure. - * - * @qdisc_tx_busylock: lockdep class annotating Qdisc->busylock spinlock - * @qdisc_running_key: lockdep class annotating Qdisc->running seqcount + * @qdisc_tx_busylock_key: lockdep class annotating Qdisc->busylock + spinlock + * @qdisc_running_key: lockdep class annotating Qdisc->running seqcount + * @qdisc_xmit_lock_key: lockdep class annotating + * netdev_queue->_xmit_lock spinlock + * @addr_list_lock_key: lockdep class annotating + * net_device->addr_list_lock spinlock * * @proto_down: protocol port state information can be sent to the * switch driver and used to set the phys state of the @@ -1875,6 +1881,8 @@ struct net_device { unsigned char perm_addr[MAX_ADDR_LEN]; unsigned char addr_assign_type; unsigned char addr_len; + unsigned char upper_level; + unsigned char lower_level; unsigned short neigh_priv_len; unsigned short dev_id; unsigned short dev_port; @@ -2045,8 +2053,10 @@ struct net_device { #endif struct phy_device *phydev; struct sfp_bus *sfp_bus; - struct lock_class_key *qdisc_tx_busylock; - struct lock_class_key *qdisc_running_key; + struct lock_class_key qdisc_tx_busylock_key; + struct lock_class_key qdisc_running_key; + struct lock_class_key qdisc_xmit_lock_key; + struct lock_class_key addr_list_lock_key; bool proto_down; unsigned wol_enabled:1; }; @@ -2124,23 +2134,6 @@ static inline void netdev_for_each_tx_queue(struct net_device *dev, f(dev, &dev->_tx[i], arg); } -#define netdev_lockdep_set_classes(dev) \ -{ \ - static struct lock_class_key qdisc_tx_busylock_key; \ - static struct lock_class_key qdisc_running_key; \ - static struct lock_class_key qdisc_xmit_lock_key; \ - static struct lock_class_key dev_addr_list_lock_key; \ - unsigned int i; \ - \ - (dev)->qdisc_tx_busylock = &qdisc_tx_busylock_key; \ - (dev)->qdisc_running_key = &qdisc_running_key; \ - lockdep_set_class(&(dev)->addr_list_lock, \ - &dev_addr_list_lock_key); \ - for (i = 0; i < (dev)->num_tx_queues; i++) \ - lockdep_set_class(&(dev)->_tx[i]._xmit_lock, \ - &qdisc_xmit_lock_key); \ -} - u16 netdev_pick_tx(struct net_device *dev, struct sk_buff *skb, struct net_device *sb_dev); struct netdev_queue *netdev_core_pick_tx(struct net_device *dev, @@ -3139,6 +3132,7 @@ static inline void netif_stop_queue(struct net_device *dev) } void netif_tx_stop_all_queues(struct net_device *dev); +void netdev_update_lockdep_key(struct net_device *dev); static inline bool netif_tx_queue_stopped(const struct netdev_queue *dev_queue) { @@ -4056,16 +4050,6 @@ static inline void netif_addr_lock(struct net_device *dev) spin_lock(&dev->addr_list_lock); } -static inline void netif_addr_lock_nested(struct net_device *dev) -{ - int subclass = SINGLE_DEPTH_NESTING; - - if (dev->netdev_ops->ndo_get_lock_subclass) - subclass = dev->netdev_ops->ndo_get_lock_subclass(dev); - - spin_lock_nested(&dev->addr_list_lock, subclass); -} - static inline void netif_addr_lock_bh(struct net_device *dev) { spin_lock_bh(&dev->addr_list_lock); @@ -4329,6 +4313,16 @@ int netdev_master_upper_dev_link(struct net_device *dev, struct netlink_ext_ack *extack); void netdev_upper_dev_unlink(struct net_device *dev, struct net_device *upper_dev); +int netdev_adjacent_change_prepare(struct net_device *old_dev, + struct net_device *new_dev, + struct net_device *dev, + struct netlink_ext_ack *extack); +void netdev_adjacent_change_commit(struct net_device *old_dev, + struct net_device *new_dev, + struct net_device *dev); +void netdev_adjacent_change_abort(struct net_device *old_dev, + struct net_device *new_dev, + struct net_device *dev); void netdev_adjacent_rename_links(struct net_device *dev, char *oldname); void *netdev_lower_dev_get_private(struct net_device *dev, struct net_device *lower_dev); @@ -4340,7 +4334,6 @@ void netdev_lower_state_changed(struct net_device *lower_dev, extern u8 netdev_rss_key[NETDEV_RSS_KEY_LEN] __read_mostly; void netdev_rss_key_fill(void *buffer, size_t len); -int dev_get_nest_level(struct net_device *dev); int skb_checksum_help(struct sk_buff *skb); int skb_crc32c_csum_help(struct sk_buff *skb); int skb_csum_hwoffload_help(struct sk_buff *skb, diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 7914fdaf4226..a391147c03d4 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1354,7 +1354,8 @@ static inline __u32 skb_get_hash_flowi6(struct sk_buff *skb, const struct flowi6 return skb->hash; } -__u32 skb_get_hash_perturb(const struct sk_buff *skb, u32 perturb); +__u32 skb_get_hash_perturb(const struct sk_buff *skb, + const siphash_key_t *perturb); static inline __u32 skb_get_hash_raw(const struct sk_buff *skb) { diff --git a/include/net/bonding.h b/include/net/bonding.h index f7fe45689142..1afc125014da 100644 --- a/include/net/bonding.h +++ b/include/net/bonding.h @@ -203,7 +203,6 @@ struct bonding { struct slave __rcu *primary_slave; struct bond_up_slave __rcu *slave_arr; /* Array of usable slaves */ bool force_primary; - u32 nest_level; s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ int (*recv_probe)(const struct sk_buff *, struct bonding *, struct slave *); @@ -239,6 +238,7 @@ struct bonding { struct dentry *debug_dir; #endif /* CONFIG_DEBUG_FS */ struct rtnl_link_stats64 bond_stats; + struct lock_class_key stats_lock_key; }; #define bond_slave_get_rcu(dev) \ diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h index 90bd210be060..5cd12276ae21 100644 --- a/include/net/flow_dissector.h +++ b/include/net/flow_dissector.h @@ -4,6 +4,7 @@ #include <linux/types.h> #include <linux/in6.h> +#include <linux/siphash.h> #include <uapi/linux/if_ether.h> /** @@ -276,7 +277,7 @@ struct flow_keys_basic { struct flow_keys { struct flow_dissector_key_control control; #define FLOW_KEYS_HASH_START_FIELD basic - struct flow_dissector_key_basic basic; + struct flow_dissector_key_basic basic __aligned(SIPHASH_ALIGNMENT); struct flow_dissector_key_tags tags; struct flow_dissector_key_vlan vlan; struct flow_dissector_key_vlan cvlan; diff --git a/include/net/fq.h b/include/net/fq.h index d126b5d20261..2ad85e683041 100644 --- a/include/net/fq.h +++ b/include/net/fq.h @@ -69,7 +69,7 @@ struct fq { struct list_head backlogs; spinlock_t lock; u32 flows_cnt; - u32 perturbation; + siphash_key_t perturbation; u32 limit; u32 memory_limit; u32 memory_usage; diff --git a/include/net/fq_impl.h b/include/net/fq_impl.h index be40a4b327e3..107c0d700ed6 100644 --- a/include/net/fq_impl.h +++ b/include/net/fq_impl.h @@ -108,7 +108,7 @@ begin: static u32 fq_flow_idx(struct fq *fq, struct sk_buff *skb) { - u32 hash = skb_get_hash_perturb(skb, fq->perturbation); + u32 hash = skb_get_hash_perturb(skb, &fq->perturbation); return reciprocal_scale(hash, fq->flows_cnt); } @@ -308,7 +308,7 @@ static int fq_init(struct fq *fq, int flows_cnt) INIT_LIST_HEAD(&fq->backlogs); spin_lock_init(&fq->lock); fq->flows_cnt = max_t(u32, flows_cnt, 1); - fq->perturbation = prandom_u32(); + get_random_bytes(&fq->perturbation, sizeof(fq->perturbation)); fq->quantum = 300; fq->limit = 8192; fq->memory_limit = 16 << 20; /* 16 MBytes */ diff --git a/include/net/hwbm.h b/include/net/hwbm.h index 81643cf8a1c4..c81444611a22 100644 --- a/include/net/hwbm.h +++ b/include/net/hwbm.h @@ -21,9 +21,13 @@ void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf); int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp); int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num); #else -void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf) {} -int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp) { return 0; } -int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num) +static inline void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf) {} + +static inline int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp) +{ return 0; } + +static inline int hwbm_pool_add(struct hwbm_pool *bm_pool, + unsigned int buf_num) { return 0; } #endif /* CONFIG_HWBM */ #endif /* _HWBM_H */ diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index 4c2cd9378699..c7e15a213ef2 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -342,7 +342,7 @@ static inline struct net *read_pnet(const possible_net_t *pnet) #define __net_initconst __initconst #endif -int peernet2id_alloc(struct net *net, struct net *peer); +int peernet2id_alloc(struct net *net, struct net *peer, gfp_t gfp); int peernet2id(struct net *net, struct net *peer); bool peernet_has_id(struct net *net, struct net *peer); struct net *get_net_ns_by_id(struct net *net, int id); diff --git a/include/net/vxlan.h b/include/net/vxlan.h index 335283dbe9b3..373aadcfea21 100644 --- a/include/net/vxlan.h +++ b/include/net/vxlan.h @@ -197,6 +197,7 @@ struct vxlan_rdst { u8 offloaded:1; __be32 remote_vni; u32 remote_ifindex; + struct net_device *remote_dev; struct list_head list; struct rcu_head rcu; struct dst_cache dst_cache; diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index 66088a9e9b9e..ef0e1e3e66f4 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -502,7 +502,7 @@ int bpf_remove_insns(struct bpf_prog *prog, u32 off, u32 cnt) return WARN_ON_ONCE(bpf_adj_branches(prog, off, off + cnt, off, false)); } -void bpf_prog_kallsyms_del_subprogs(struct bpf_prog *fp) +static void bpf_prog_kallsyms_del_subprogs(struct bpf_prog *fp) { int i; diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c index d27f3b60ff6d..3867864cdc2f 100644 --- a/kernel/bpf/devmap.c +++ b/kernel/bpf/devmap.c @@ -128,7 +128,7 @@ static int dev_map_init_map(struct bpf_dtab *dtab, union bpf_attr *attr) if (!dtab->n_buckets) /* Overflow check */ return -EINVAL; - cost += sizeof(struct hlist_head) * dtab->n_buckets; + cost += (u64) sizeof(struct hlist_head) * dtab->n_buckets; } /* if map size is larger than memlock limit, reject it */ @@ -719,6 +719,32 @@ const struct bpf_map_ops dev_map_hash_ops = { .map_check_btf = map_check_no_btf, }; +static void dev_map_hash_remove_netdev(struct bpf_dtab *dtab, + struct net_device *netdev) +{ + unsigned long flags; + u32 i; + + spin_lock_irqsave(&dtab->index_lock, flags); + for (i = 0; i < dtab->n_buckets; i++) { + struct bpf_dtab_netdev *dev; + struct hlist_head *head; + struct hlist_node *next; + + head = dev_map_index_hash(dtab, i); + + hlist_for_each_entry_safe(dev, next, head, index_hlist) { + if (netdev != dev->dev) + continue; + + dtab->items--; + hlist_del_rcu(&dev->index_hlist); + call_rcu(&dev->rcu, __dev_map_entry_free); + } + } + spin_unlock_irqrestore(&dtab->index_lock, flags); +} + static int dev_map_notification(struct notifier_block *notifier, ulong event, void *ptr) { @@ -735,6 +761,11 @@ static int dev_map_notification(struct notifier_block *notifier, */ rcu_read_lock(); list_for_each_entry_rcu(dtab, &dev_map_list, list) { + if (dtab->map.map_type == BPF_MAP_TYPE_DEVMAP_HASH) { + dev_map_hash_remove_netdev(dtab, netdev); + continue; + } + for (i = 0; i < dtab->map.max_entries; i++) { struct bpf_dtab_netdev *dev, *odev; diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 82eabd4e38ad..0937719b87e2 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -1326,24 +1326,32 @@ static void __bpf_prog_put_rcu(struct rcu_head *rcu) { struct bpf_prog_aux *aux = container_of(rcu, struct bpf_prog_aux, rcu); + kvfree(aux->func_info); free_used_maps(aux); bpf_prog_uncharge_memlock(aux->prog); security_bpf_prog_free(aux); bpf_prog_free(aux->prog); } +static void __bpf_prog_put_noref(struct bpf_prog *prog, bool deferred) +{ + bpf_prog_kallsyms_del_all(prog); + btf_put(prog->aux->btf); + bpf_prog_free_linfo(prog); + + if (deferred) + call_rcu(&prog->aux->rcu, __bpf_prog_put_rcu); + else + __bpf_prog_put_rcu(&prog->aux->rcu); +} + static void __bpf_prog_put(struct bpf_prog *prog, bool do_idr_lock) { if (atomic_dec_and_test(&prog->aux->refcnt)) { perf_event_bpf_event(prog, PERF_BPF_EVENT_PROG_UNLOAD, 0); /* bpf_prog_free_id() must be called first */ bpf_prog_free_id(prog, do_idr_lock); - bpf_prog_kallsyms_del_all(prog); - btf_put(prog->aux->btf); - kvfree(prog->aux->func_info); - bpf_prog_free_linfo(prog); - - call_rcu(&prog->aux->rcu, __bpf_prog_put_rcu); + __bpf_prog_put_noref(prog, true); } } @@ -1741,11 +1749,12 @@ static int bpf_prog_load(union bpf_attr *attr, union bpf_attr __user *uattr) return err; free_used_maps: - bpf_prog_free_linfo(prog); - kvfree(prog->aux->func_info); - btf_put(prog->aux->btf); - bpf_prog_kallsyms_del_subprogs(prog); - free_used_maps(prog->aux); + /* In case we have subprogs, we need to wait for a grace + * period before we can tear down JIT memory since symbols + * are already exposed under kallsyms. + */ + __bpf_prog_put_noref(prog, prog->aux->func_cnt); + return err; free_prog: bpf_prog_uncharge_memlock(prog); free_prog_sec: diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 54728d2eda18..d4bcfd8f95bf 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -172,7 +172,6 @@ int register_vlan_dev(struct net_device *dev, struct netlink_ext_ack *extack) if (err < 0) goto out_uninit_mvrp; - vlan->nest_level = dev_get_nest_level(real_dev) + 1; err = register_netdevice(dev); if (err < 0) goto out_uninit_mvrp; diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 93eadf179123..e5bff5cc6f97 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -489,36 +489,6 @@ static void vlan_dev_set_rx_mode(struct net_device *vlan_dev) dev_uc_sync(vlan_dev_priv(vlan_dev)->real_dev, vlan_dev); } -/* - * vlan network devices have devices nesting below it, and are a special - * "super class" of normal network devices; split their locks off into a - * separate class since they always nest. - */ -static struct lock_class_key vlan_netdev_xmit_lock_key; -static struct lock_class_key vlan_netdev_addr_lock_key; - -static void vlan_dev_set_lockdep_one(struct net_device *dev, - struct netdev_queue *txq, - void *_subclass) -{ - lockdep_set_class_and_subclass(&txq->_xmit_lock, - &vlan_netdev_xmit_lock_key, - *(int *)_subclass); -} - -static void vlan_dev_set_lockdep_class(struct net_device *dev, int subclass) -{ - lockdep_set_class_and_subclass(&dev->addr_list_lock, - &vlan_netdev_addr_lock_key, - subclass); - netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, &subclass); -} - -static int vlan_dev_get_lock_subclass(struct net_device *dev) -{ - return vlan_dev_priv(dev)->nest_level; -} - static const struct header_ops vlan_header_ops = { .create = vlan_dev_hard_header, .parse = eth_header_parse, @@ -609,8 +579,6 @@ static int vlan_dev_init(struct net_device *dev) SET_NETDEV_DEVTYPE(dev, &vlan_type); - vlan_dev_set_lockdep_class(dev, vlan_dev_get_lock_subclass(dev)); - vlan->vlan_pcpu_stats = netdev_alloc_pcpu_stats(struct vlan_pcpu_stats); if (!vlan->vlan_pcpu_stats) return -ENOMEM; @@ -812,7 +780,6 @@ static const struct net_device_ops vlan_netdev_ops = { .ndo_netpoll_cleanup = vlan_dev_netpoll_cleanup, #endif .ndo_fix_features = vlan_dev_fix_features, - .ndo_get_lock_subclass = vlan_dev_get_lock_subclass, .ndo_get_iflink = vlan_dev_get_iflink, }; diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index 9cbed6f5a85a..5ee8e9a100f9 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -740,36 +740,6 @@ static int batadv_interface_kill_vid(struct net_device *dev, __be16 proto, return 0; } -/* batman-adv network devices have devices nesting below it and are a special - * "super class" of normal network devices; split their locks off into a - * separate class since they always nest. - */ -static struct lock_class_key batadv_netdev_xmit_lock_key; -static struct lock_class_key batadv_netdev_addr_lock_key; - -/** - * batadv_set_lockdep_class_one() - Set lockdep class for a single tx queue - * @dev: device which owns the tx queue - * @txq: tx queue to modify - * @_unused: always NULL - */ -static void batadv_set_lockdep_class_one(struct net_device *dev, - struct netdev_queue *txq, - void *_unused) -{ - lockdep_set_class(&txq->_xmit_lock, &batadv_netdev_xmit_lock_key); -} - -/** - * batadv_set_lockdep_class() - Set txq and addr_list lockdep class - * @dev: network device to modify - */ -static void batadv_set_lockdep_class(struct net_device *dev) -{ - lockdep_set_class(&dev->addr_list_lock, &batadv_netdev_addr_lock_key); - netdev_for_each_tx_queue(dev, batadv_set_lockdep_class_one, NULL); -} - /** * batadv_softif_init_late() - late stage initialization of soft interface * @dev: registered network device to modify @@ -783,8 +753,6 @@ static int batadv_softif_init_late(struct net_device *dev) int ret; size_t cnt_len = sizeof(u64) * BATADV_CNT_NUM; - batadv_set_lockdep_class(dev); - bat_priv = netdev_priv(dev); bat_priv->soft_iface = dev; diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c index bb55d92691b0..4febc82a7c76 100644 --- a/net/bluetooth/6lowpan.c +++ b/net/bluetooth/6lowpan.c @@ -571,15 +571,7 @@ static netdev_tx_t bt_xmit(struct sk_buff *skb, struct net_device *netdev) return err < 0 ? NET_XMIT_DROP : err; } -static int bt_dev_init(struct net_device *dev) -{ - netdev_lockdep_set_classes(dev); - - return 0; -} - static const struct net_device_ops netdev_ops = { - .ndo_init = bt_dev_init, .ndo_start_xmit = bt_xmit, }; diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index 681b72862c16..e804a3016902 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -24,8 +24,6 @@ const struct nf_br_ops __rcu *nf_br_ops __read_mostly; EXPORT_SYMBOL_GPL(nf_br_ops); -static struct lock_class_key bridge_netdev_addr_lock_key; - /* net device transmit always called with BH disabled */ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) { @@ -108,11 +106,6 @@ out: return NETDEV_TX_OK; } -static void br_set_lockdep_class(struct net_device *dev) -{ - lockdep_set_class(&dev->addr_list_lock, &bridge_netdev_addr_lock_key); -} - static int br_dev_init(struct net_device *dev) { struct net_bridge *br = netdev_priv(dev); @@ -150,7 +143,6 @@ static int br_dev_init(struct net_device *dev) br_mdb_hash_fini(br); br_fdb_hash_fini(br); } - br_set_lockdep_class(dev); return err; } diff --git a/net/core/dev.c b/net/core/dev.c index bf3ed413abaf..96afd464284a 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -146,6 +146,7 @@ #include "net-sysfs.h" #define MAX_GRO_SKBS 8 +#define MAX_NEST_DEV 8 /* This should be increased if a protocol with a bigger head is added. */ #define GRO_MAX_HEAD (MAX_HEADER + 128) @@ -276,88 +277,6 @@ static RAW_NOTIFIER_HEAD(netdev_chain); DEFINE_PER_CPU_ALIGNED(struct softnet_data, softnet_data); EXPORT_PER_CPU_SYMBOL(softnet_data); -#ifdef CONFIG_LOCKDEP -/* - * register_netdevice() inits txq->_xmit_lock and sets lockdep class - * according to dev->type - */ -static const unsigned short netdev_lock_type[] = { - ARPHRD_NETROM, ARPHRD_ETHER, ARPHRD_EETHER, ARPHRD_AX25, - ARPHRD_PRONET, ARPHRD_CHAOS, ARPHRD_IEEE802, ARPHRD_ARCNET, - ARPHRD_APPLETLK, ARPHRD_DLCI, ARPHRD_ATM, ARPHRD_METRICOM, - ARPHRD_IEEE1394, ARPHRD_EUI64, ARPHRD_INFINIBAND, ARPHRD_SLIP, - ARPHRD_CSLIP, ARPHRD_SLIP6, ARPHRD_CSLIP6, ARPHRD_RSRVD, - ARPHRD_ADAPT, ARPHRD_ROSE, ARPHRD_X25, ARPHRD_HWX25, - ARPHRD_PPP, ARPHRD_CISCO, ARPHRD_LAPB, ARPHRD_DDCMP, - ARPHRD_RAWHDLC, ARPHRD_TUNNEL, ARPHRD_TUNNEL6, ARPHRD_FRAD, - ARPHRD_SKIP, ARPHRD_LOOPBACK, ARPHRD_LOCALTLK, ARPHRD_FDDI, - ARPHRD_BIF, ARPHRD_SIT, ARPHRD_IPDDP, ARPHRD_IPGRE, - ARPHRD_PIMREG, ARPHRD_HIPPI, ARPHRD_ASH, ARPHRD_ECONET, - ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL, - ARPHRD_FCFABRIC, ARPHRD_IEEE80211, ARPHRD_IEEE80211_PRISM, - ARPHRD_IEEE80211_RADIOTAP, ARPHRD_PHONET, ARPHRD_PHONET_PIPE, - ARPHRD_IEEE802154, ARPHRD_VOID, ARPHRD_NONE}; - -static const char *const netdev_lock_name[] = { - "_xmit_NETROM", "_xmit_ETHER", "_xmit_EETHER", "_xmit_AX25", - "_xmit_PRONET", "_xmit_CHAOS", "_xmit_IEEE802", "_xmit_ARCNET", - "_xmit_APPLETLK", "_xmit_DLCI", "_xmit_ATM", "_xmit_METRICOM", - "_xmit_IEEE1394", "_xmit_EUI64", "_xmit_INFINIBAND", "_xmit_SLIP", - "_xmit_CSLIP", "_xmit_SLIP6", "_xmit_CSLIP6", "_xmit_RSRVD", - "_xmit_ADAPT", "_xmit_ROSE", "_xmit_X25", "_xmit_HWX25", - "_xmit_PPP", "_xmit_CISCO", "_xmit_LAPB", "_xmit_DDCMP", - "_xmit_RAWHDLC", "_xmit_TUNNEL", "_xmit_TUNNEL6", "_xmit_FRAD", - "_xmit_SKIP", "_xmit_LOOPBACK", "_xmit_LOCALTLK", "_xmit_FDDI", - "_xmit_BIF", "_xmit_SIT", "_xmit_IPDDP", "_xmit_IPGRE", - "_xmit_PIMREG", "_xmit_HIPPI", "_xmit_ASH", "_xmit_ECONET", - "_xmit_IRDA", "_xmit_FCPP", "_xmit_FCAL", "_xmit_FCPL", - "_xmit_FCFABRIC", "_xmit_IEEE80211", "_xmit_IEEE80211_PRISM", - "_xmit_IEEE80211_RADIOTAP", "_xmit_PHONET", "_xmit_PHONET_PIPE", - "_xmit_IEEE802154", "_xmit_VOID", "_xmit_NONE"}; - -static struct lock_class_key netdev_xmit_lock_key[ARRAY_SIZE(netdev_lock_type)]; -static struct lock_class_key netdev_addr_lock_key[ARRAY_SIZE(netdev_lock_type)]; - -static inline unsigned short netdev_lock_pos(unsigned short dev_type) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(netdev_lock_type); i++) - if (netdev_lock_type[i] == dev_type) - return i; - /* the last key is used by default */ - return ARRAY_SIZE(netdev_lock_type) - 1; -} - -static inline void netdev_set_xmit_lockdep_class(spinlock_t *lock, - unsigned short dev_type) -{ - int i; - - i = netdev_lock_pos(dev_type); - lockdep_set_class_and_name(lock, &netdev_xmit_lock_key[i], - netdev_lock_name[i]); -} - -static inline void netdev_set_addr_lockdep_class(struct net_device *dev) -{ - int i; - - i = netdev_lock_pos(dev->type); - lockdep_set_class_and_name(&dev->addr_list_lock, - &netdev_addr_lock_key[i], - netdev_lock_name[i]); -} -#else -static inline void netdev_set_xmit_lockdep_class(spinlock_t *lock, - unsigned short dev_type) -{ -} -static inline void netdev_set_addr_lockdep_class(struct net_device *dev) -{ -} -#endif - /******************************************************************************* * * Protocol management and registration routines @@ -6489,6 +6408,9 @@ struct netdev_adjacent { /* upper master flag, there can only be one master device per list */ bool master; + /* lookup ignore flag */ + bool ignore; + /* counter for the number of times this device was added to us */ u16 ref_nr; @@ -6511,7 +6433,7 @@ static struct netdev_adjacent *__netdev_find_adj(struct net_device *adj_dev, return NULL; } -static int __netdev_has_upper_dev(struct net_device *upper_dev, void *data) +static int ____netdev_has_upper_dev(struct net_device *upper_dev, void *data) { struct net_device *dev = data; @@ -6532,7 +6454,7 @@ bool netdev_has_upper_dev(struct net_device *dev, { ASSERT_RTNL(); - return netdev_walk_all_upper_dev_rcu(dev, __netdev_has_upper_dev, + return netdev_walk_all_upper_dev_rcu(dev, ____netdev_has_upper_dev, upper_dev); } EXPORT_SYMBOL(netdev_has_upper_dev); @@ -6550,7 +6472,7 @@ EXPORT_SYMBOL(netdev_has_upper_dev); bool netdev_has_upper_dev_all_rcu(struct net_device *dev, struct net_device *upper_dev) { - return !!netdev_walk_all_upper_dev_rcu(dev, __netdev_has_upper_dev, + return !!netdev_walk_all_upper_dev_rcu(dev, ____netdev_has_upper_dev, upper_dev); } EXPORT_SYMBOL(netdev_has_upper_dev_all_rcu); @@ -6594,6 +6516,22 @@ struct net_device *netdev_master_upper_dev_get(struct net_device *dev) } EXPORT_SYMBOL(netdev_master_upper_dev_get); +static struct net_device *__netdev_master_upper_dev_get(struct net_device *dev) +{ + struct netdev_adjacent *upper; + + ASSERT_RTNL(); + + if (list_empty(&dev->adj_list.upper)) + return NULL; + + upper = list_first_entry(&dev->adj_list.upper, + struct netdev_adjacent, list); + if (likely(upper->master) && !upper->ignore) + return upper->dev; + return NULL; +} + /** * netdev_has_any_lower_dev - Check if device is linked to some device * @dev: device @@ -6644,6 +6582,23 @@ struct net_device *netdev_upper_get_next_dev_rcu(struct net_device *dev, } EXPORT_SYMBOL(netdev_upper_get_next_dev_rcu); +static struct net_device *__netdev_next_upper_dev(struct net_device *dev, + struct list_head **iter, + bool *ignore) +{ + struct netdev_adjacent *upper; + + upper = list_entry((*iter)->next, struct netdev_adjacent, list); + + if (&upper->list == &dev->adj_list.upper) + return NULL; + + *iter = &upper->list; + *ignore = upper->ignore; + + return upper->dev; +} + static struct net_device *netdev_next_upper_dev_rcu(struct net_device *dev, struct list_head **iter) { @@ -6661,34 +6616,111 @@ static struct net_device *netdev_next_upper_dev_rcu(struct net_device *dev, return upper->dev; } +static int __netdev_walk_all_upper_dev(struct net_device *dev, + int (*fn)(struct net_device *dev, + void *data), + void *data) +{ + struct net_device *udev, *next, *now, *dev_stack[MAX_NEST_DEV + 1]; + struct list_head *niter, *iter, *iter_stack[MAX_NEST_DEV + 1]; + int ret, cur = 0; + bool ignore; + + now = dev; + iter = &dev->adj_list.upper; + + while (1) { + if (now != dev) { + ret = fn(now, data); + if (ret) + return ret; + } + + next = NULL; + while (1) { + udev = __netdev_next_upper_dev(now, &iter, &ignore); + if (!udev) + break; + if (ignore) + continue; + + next = udev; + niter = &udev->adj_list.upper; + dev_stack[cur] = now; + iter_stack[cur++] = iter; + break; + } + + if (!next) { + if (!cur) + return 0; + next = dev_stack[--cur]; + niter = iter_stack[cur]; + } + + now = next; + iter = niter; + } + + return 0; +} + int netdev_walk_all_upper_dev_rcu(struct net_device *dev, int (*fn)(struct net_device *dev, void *data), void *data) { - struct net_device *udev; - struct list_head *iter; - int ret; + struct net_device *udev, *next, *now, *dev_stack[MAX_NEST_DEV + 1]; + struct list_head *niter, *iter, *iter_stack[MAX_NEST_DEV + 1]; + int ret, cur = 0; - for (iter = &dev->adj_list.upper, - udev = netdev_next_upper_dev_rcu(dev, &iter); - udev; - udev = netdev_next_upper_dev_rcu(dev, &iter)) { - /* first is the upper device itself */ - ret = fn(udev, data); - if (ret) - return ret; + now = dev; + iter = &dev->adj_list.upper; - /* then look at all of its upper devices */ - ret = netdev_walk_all_upper_dev_rcu(udev, fn, data); - if (ret) - return ret; + while (1) { + if (now != dev) { + ret = fn(now, data); + if (ret) + return ret; + } + + next = NULL; + while (1) { + udev = netdev_next_upper_dev_rcu(now, &iter); + if (!udev) + break; + + next = udev; + niter = &udev->adj_list.upper; + dev_stack[cur] = now; + iter_stack[cur++] = iter; + break; + } + + if (!next) { + if (!cur) + return 0; + next = dev_stack[--cur]; + niter = iter_stack[cur]; + } + + now = next; + iter = niter; } return 0; } EXPORT_SYMBOL_GPL(netdev_walk_all_upper_dev_rcu); +static bool __netdev_has_upper_dev(struct net_device *dev, + struct net_device *upper_dev) +{ + ASSERT_RTNL(); + + return __netdev_walk_all_upper_dev(dev, ____netdev_has_upper_dev, + upper_dev); +} + /** * netdev_lower_get_next_private - Get the next ->private from the * lower neighbour list @@ -6785,34 +6817,119 @@ static struct net_device *netdev_next_lower_dev(struct net_device *dev, return lower->dev; } +static struct net_device *__netdev_next_lower_dev(struct net_device *dev, + struct list_head **iter, + bool *ignore) +{ + struct netdev_adjacent *lower; + + lower = list_entry((*iter)->next, struct netdev_adjacent, list); + + if (&lower->list == &dev->adj_list.lower) + return NULL; + + *iter = &lower->list; + *ignore = lower->ignore; + + return lower->dev; +} + int netdev_walk_all_lower_dev(struct net_device *dev, int (*fn)(struct net_device *dev, void *data), void *data) { - struct net_device *ldev; - struct list_head *iter; - int ret; + struct net_device *ldev, *next, *now, *dev_stack[MAX_NEST_DEV + 1]; + struct list_head *niter, *iter, *iter_stack[MAX_NEST_DEV + 1]; + int ret, cur = 0; - for (iter = &dev->adj_list.lower, - ldev = netdev_next_lower_dev(dev, &iter); - ldev; - ldev = netdev_next_lower_dev(dev, &iter)) { - /* first is the lower device itself */ - ret = fn(ldev, data); - if (ret) - return ret; + now = dev; + iter = &dev->adj_list.lower; - /* then look at all of its lower devices */ - ret = netdev_walk_all_lower_dev(ldev, fn, data); - if (ret) - return ret; + while (1) { + if (now != dev) { + ret = fn(now, data); + if (ret) + return ret; + } + + next = NULL; + while (1) { + ldev = netdev_next_lower_dev(now, &iter); + if (!ldev) + break; + + next = ldev; + niter = &ldev->adj_list.lower; + dev_stack[cur] = now; + iter_stack[cur++] = iter; + break; + } + + if (!next) { + if (!cur) + return 0; + next = dev_stack[--cur]; + niter = iter_stack[cur]; + } + + now = next; + iter = niter; } return 0; } EXPORT_SYMBOL_GPL(netdev_walk_all_lower_dev); +static int __netdev_walk_all_lower_dev(struct net_device *dev, + int (*fn)(struct net_device *dev, + void *data), + void *data) +{ + struct net_device *ldev, *next, *now, *dev_stack[MAX_NEST_DEV + 1]; + struct list_head *niter, *iter, *iter_stack[MAX_NEST_DEV + 1]; + int ret, cur = 0; + bool ignore; + + now = dev; + iter = &dev->adj_list.lower; + + while (1) { + if (now != dev) { + ret = fn(now, data); + if (ret) + return ret; + } + + next = NULL; + while (1) { + ldev = __netdev_next_lower_dev(now, &iter, &ignore); + if (!ldev) + break; + if (ignore) + continue; + + next = ldev; + niter = &ldev->adj_list.lower; + dev_stack[cur] = now; + iter_stack[cur++] = iter; + break; + } + + if (!next) { + if (!cur) + return 0; + next = dev_stack[--cur]; + niter = iter_stack[cur]; + } + + now = next; + iter = niter; + } + + return 0; +} + static struct net_device *netdev_next_lower_dev_rcu(struct net_device *dev, struct list_head **iter) { @@ -6827,28 +6944,99 @@ static struct net_device *netdev_next_lower_dev_rcu(struct net_device *dev, return lower->dev; } -int netdev_walk_all_lower_dev_rcu(struct net_device *dev, - int (*fn)(struct net_device *dev, - void *data), - void *data) +static u8 __netdev_upper_depth(struct net_device *dev) +{ + struct net_device *udev; + struct list_head *iter; + u8 max_depth = 0; + bool ignore; + + for (iter = &dev->adj_list.upper, + udev = __netdev_next_upper_dev(dev, &iter, &ignore); + udev; + udev = __netdev_next_upper_dev(dev, &iter, &ignore)) { + if (ignore) + continue; + if (max_depth < udev->upper_level) + max_depth = udev->upper_level; + } + + return max_depth; +} + +static u8 __netdev_lower_depth(struct net_device *dev) { struct net_device *ldev; struct list_head *iter; - int ret; + u8 max_depth = 0; + bool ignore; for (iter = &dev->adj_list.lower, - ldev = netdev_next_lower_dev_rcu(dev, &iter); + ldev = __netdev_next_lower_dev(dev, &iter, &ignore); ldev; - ldev = netdev_next_lower_dev_rcu(dev, &iter)) { - /* first is the lower device itself */ - ret = fn(ldev, data); - if (ret) - return ret; + ldev = __netdev_next_lower_dev(dev, &iter, &ignore)) { + if (ignore) + continue; + if (max_depth < ldev->lower_level) + max_depth = ldev->lower_level; + } - /* then look at all of its lower devices */ - ret = netdev_walk_all_lower_dev_rcu(ldev, fn, data); - if (ret) - return ret; + return max_depth; +} + +static int __netdev_update_upper_level(struct net_device *dev, void *data) +{ + dev->upper_level = __netdev_upper_depth(dev) + 1; + return 0; +} + +static int __netdev_update_lower_level(struct net_device *dev, void *data) +{ + dev->lower_level = __netdev_lower_depth(dev) + 1; + return 0; +} + +int netdev_walk_all_lower_dev_rcu(struct net_device *dev, + int (*fn)(struct net_device *dev, + void *data), + void *data) +{ + struct net_device *ldev, *next, *now, *dev_stack[MAX_NEST_DEV + 1]; + struct list_head *niter, *iter, *iter_stack[MAX_NEST_DEV + 1]; + int ret, cur = 0; + + now = dev; + iter = &dev->adj_list.lower; + + while (1) { + if (now != dev) { + ret = fn(now, data); + if (ret) + return ret; + } + + next = NULL; + while (1) { + ldev = netdev_next_lower_dev_rcu(now, &iter); + if (!ldev) + break; + + next = ldev; + niter = &ldev->adj_list.lower; + dev_stack[cur] = now; + iter_stack[cur++] = iter; + break; + } + + if (!next) { + if (!cur) + return 0; + next = dev_stack[--cur]; + niter = iter_stack[cur]; + } + + now = next; + iter = niter; } return 0; @@ -6952,6 +7140,7 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev, adj->master = master; adj->ref_nr = 1; adj->private = private; + adj->ignore = false; dev_hold(adj_dev); pr_debug("Insert adjacency: dev %s adj_dev %s adj->ref_nr %d; dev_hold on %s\n", @@ -7102,14 +7291,17 @@ static int __netdev_upper_dev_link(struct net_device *dev, return -EBUSY; /* To prevent loops, check if dev is not upper device to upper_dev. */ - if (netdev_has_upper_dev(upper_dev, dev)) + if (__netdev_has_upper_dev(upper_dev, dev)) return -EBUSY; + if ((dev->lower_level + upper_dev->upper_level) > MAX_NEST_DEV) + return -EMLINK; + if (!master) { - if (netdev_has_upper_dev(dev, upper_dev)) + if (__netdev_has_upper_dev(dev, upper_dev)) return -EEXIST; } else { - master_dev = netdev_master_upper_dev_get(dev); + master_dev = __netdev_master_upper_dev_get(dev); if (master_dev) return master_dev == upper_dev ? -EEXIST : -EBUSY; } @@ -7131,6 +7323,13 @@ static int __netdev_upper_dev_link(struct net_device *dev, if (ret) goto rollback; + __netdev_update_upper_level(dev, NULL); + __netdev_walk_all_lower_dev(dev, __netdev_update_upper_level, NULL); + + __netdev_update_lower_level(upper_dev, NULL); + __netdev_walk_all_upper_dev(upper_dev, __netdev_update_lower_level, + NULL); + return 0; rollback: @@ -7213,9 +7412,96 @@ void netdev_upper_dev_unlink(struct net_device *dev, call_netdevice_notifiers_info(NETDEV_CHANGEUPPER, &changeupper_info.info); + + __netdev_update_upper_level(dev, NULL); + __netdev_walk_all_lower_dev(dev, __netdev_update_upper_level, NULL); + + __netdev_update_lower_level(upper_dev, NULL); + __netdev_walk_all_upper_dev(upper_dev, __netdev_update_lower_level, + NULL); } EXPORT_SYMBOL(netdev_upper_dev_unlink); +static void __netdev_adjacent_dev_set(struct net_device *upper_dev, + struct net_device *lower_dev, + bool val) +{ + struct netdev_adjacent *adj; + + adj = __netdev_find_adj(lower_dev, &upper_dev->adj_list.lower); + if (adj) + adj->ignore = val; + + adj = __netdev_find_adj(upper_dev, &lower_dev->adj_list.upper); + if (adj) + adj->ignore = val; +} + +static void netdev_adjacent_dev_disable(struct net_device *upper_dev, + struct net_device *lower_dev) +{ + __netdev_adjacent_dev_set(upper_dev, lower_dev, true); +} + +static void netdev_adjacent_dev_enable(struct net_device *upper_dev, + struct net_device *lower_dev) +{ + __netdev_adjacent_dev_set(upper_dev, lower_dev, false); +} + +int netdev_adjacent_change_prepare(struct net_device *old_dev, + struct net_device *new_dev, + struct net_device *dev, + struct netlink_ext_ack *extack) +{ + int err; + + if (!new_dev) + return 0; + + if (old_dev && new_dev != old_dev) + netdev_adjacent_dev_disable(dev, old_dev); + + err = netdev_upper_dev_link(new_dev, dev, extack); + if (err) { + if (old_dev && new_dev != old_dev) + netdev_adjacent_dev_enable(dev, old_dev); + return err; + } + + return 0; +} +EXPORT_SYMBOL(netdev_adjacent_change_prepare); + +void netdev_adjacent_change_commit(struct net_device *old_dev, + struct net_device *new_dev, + struct net_device *dev) +{ + if (!new_dev || !old_dev) + return; + + if (new_dev == old_dev) + return; + + netdev_adjacent_dev_enable(dev, old_dev); + netdev_upper_dev_unlink(old_dev, dev); +} +EXPORT_SYMBOL(netdev_adjacent_change_commit); + +void netdev_adjacent_change_abort(struct net_device *old_dev, + struct net_device *new_dev, + struct net_device *dev) +{ + if (!new_dev) + return; + + if (old_dev && new_dev != old_dev) + netdev_adjacent_dev_enable(dev, old_dev); + + netdev_upper_dev_unlink(new_dev, dev); +} +EXPORT_SYMBOL(netdev_adjacent_change_abort); + /** * netdev_bonding_info_change - Dispatch event about slave change * @dev: device @@ -7329,25 +7615,6 @@ void *netdev_lower_dev_get_private(struct net_device *dev, EXPORT_SYMBOL(netdev_lower_dev_get_private); -int dev_get_nest_level(struct net_device *dev) -{ - struct net_device *lower = NULL; - struct list_head *iter; - int max_nest = -1; - int nest; - - ASSERT_RTNL(); - - netdev_for_each_lower_dev(dev, lower, iter) { - nest = dev_get_nest_level(lower); - if (max_nest < nest) - max_nest = nest; - } - - return max_nest + 1; -} -EXPORT_SYMBOL(dev_get_nest_level); - /** * netdev_lower_change - Dispatch event about lower device state change * @lower_dev: device @@ -8619,7 +8886,7 @@ static void netdev_init_one_queue(struct net_device *dev, { /* Initialize queue lock */ spin_lock_init(&queue->_xmit_lock); - netdev_set_xmit_lockdep_class(&queue->_xmit_lock, dev->type); + lockdep_set_class(&queue->_xmit_lock, &dev->qdisc_xmit_lock_key); queue->xmit_lock_owner = -1; netdev_queue_numa_node_write(queue, NUMA_NO_NODE); queue->dev = dev; @@ -8666,6 +8933,43 @@ void netif_tx_stop_all_queues(struct net_device *dev) } EXPORT_SYMBOL(netif_tx_stop_all_queues); +static void netdev_register_lockdep_key(struct net_device *dev) +{ + lockdep_register_key(&dev->qdisc_tx_busylock_key); + lockdep_register_key(&dev->qdisc_running_key); + lockdep_register_key(&dev->qdisc_xmit_lock_key); + lockdep_register_key(&dev->addr_list_lock_key); +} + +static void netdev_unregister_lockdep_key(struct net_device *dev) +{ + lockdep_unregister_key(&dev->qdisc_tx_busylock_key); + lockdep_unregister_key(&dev->qdisc_running_key); + lockdep_unregister_key(&dev->qdisc_xmit_lock_key); + lockdep_unregister_key(&dev->addr_list_lock_key); +} + +void netdev_update_lockdep_key(struct net_device *dev) +{ + struct netdev_queue *queue; + int i; + + lockdep_unregister_key(&dev->qdisc_xmit_lock_key); + lockdep_unregister_key(&dev->addr_list_lock_key); + + lockdep_register_key(&dev->qdisc_xmit_lock_key); + lockdep_register_key(&dev->addr_list_lock_key); + + lockdep_set_class(&dev->addr_list_lock, &dev->addr_list_lock_key); + for (i = 0; i < dev->num_tx_queues; i++) { + queue = netdev_get_tx_queue(dev, i); + + lockdep_set_class(&queue->_xmit_lock, + &dev->qdisc_xmit_lock_key); + } +} +EXPORT_SYMBOL(netdev_update_lockdep_key); + /** * register_netdevice - register a network device * @dev: device to register @@ -8700,7 +9004,7 @@ int register_netdevice(struct net_device *dev) BUG_ON(!net); spin_lock_init(&dev->addr_list_lock); - netdev_set_addr_lockdep_class(dev); + lockdep_set_class(&dev->addr_list_lock, &dev->addr_list_lock_key); ret = dev_get_valid_name(net, dev, dev->name); if (ret < 0) @@ -9210,8 +9514,12 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name, dev_net_set(dev, &init_net); + netdev_register_lockdep_key(dev); + dev->gso_max_size = GSO_MAX_SIZE; dev->gso_max_segs = GSO_MAX_SEGS; + dev->upper_level = 1; + dev->lower_level = 1; INIT_LIST_HEAD(&dev->napi_list); INIT_LIST_HEAD(&dev->unreg_list); @@ -9292,6 +9600,8 @@ void free_netdev(struct net_device *dev) free_percpu(dev->pcpu_refcnt); dev->pcpu_refcnt = NULL; + netdev_unregister_lockdep_key(dev); + /* Compatibility with error handling in drivers */ if (dev->reg_state == NETREG_UNINITIALIZED) { netdev_freemem(dev); @@ -9460,7 +9770,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char call_netdevice_notifiers(NETDEV_UNREGISTER, dev); rcu_barrier(); - new_nsid = peernet2id_alloc(dev_net(dev), net); + new_nsid = peernet2id_alloc(dev_net(dev), net, GFP_KERNEL); /* If there is an ifindex conflict assign a new one */ if (__dev_get_by_index(net, dev->ifindex)) new_ifindex = dev_new_index(net); diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c index 6393ba930097..2f949b5a1eb9 100644 --- a/net/core/dev_addr_lists.c +++ b/net/core/dev_addr_lists.c @@ -637,7 +637,7 @@ int dev_uc_sync(struct net_device *to, struct net_device *from) if (to->addr_len != from->addr_len) return -EINVAL; - netif_addr_lock_nested(to); + netif_addr_lock(to); err = __hw_addr_sync(&to->uc, &from->uc, to->addr_len); if (!err) __dev_set_rx_mode(to); @@ -667,7 +667,7 @@ int dev_uc_sync_multiple(struct net_device *to, struct net_device *from) if (to->addr_len != from->addr_len) return -EINVAL; - netif_addr_lock_nested(to); + netif_addr_lock(to); err = __hw_addr_sync_multiple(&to->uc, &from->uc, to->addr_len); if (!err) __dev_set_rx_mode(to); @@ -691,7 +691,7 @@ void dev_uc_unsync(struct net_device *to, struct net_device *from) return; netif_addr_lock_bh(from); - netif_addr_lock_nested(to); + netif_addr_lock(to); __hw_addr_unsync(&to->uc, &from->uc, to->addr_len); __dev_set_rx_mode(to); netif_addr_unlock(to); @@ -858,7 +858,7 @@ int dev_mc_sync(struct net_device *to, struct net_device *from) if (to->addr_len != from->addr_len) return -EINVAL; - netif_addr_lock_nested(to); + netif_addr_lock(to); err = __hw_addr_sync(&to->mc, &from->mc, to->addr_len); if (!err) __dev_set_rx_mode(to); @@ -888,7 +888,7 @@ int dev_mc_sync_multiple(struct net_device *to, struct net_device *from) if (to->addr_len != from->addr_len) return -EINVAL; - netif_addr_lock_nested(to); + netif_addr_lock(to); err = __hw_addr_sync_multiple(&to->mc, &from->mc, to->addr_len); if (!err) __dev_set_rx_mode(to); @@ -912,7 +912,7 @@ void dev_mc_unsync(struct net_device *to, struct net_device *from) return; netif_addr_lock_bh(from); - netif_addr_lock_nested(to); + netif_addr_lock(to); __hw_addr_unsync(&to->mc, &from->mc, to->addr_len); __dev_set_rx_mode(to); netif_addr_unlock(to); diff --git a/net/core/ethtool.c b/net/core/ethtool.c index c763106c73fc..cd9bc67381b2 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -1396,11 +1396,13 @@ static int ethtool_reset(struct net_device *dev, char __user *useraddr) static int ethtool_get_wol(struct net_device *dev, char __user *useraddr) { - struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL }; + struct ethtool_wolinfo wol; if (!dev->ethtool_ops->get_wol) return -EOPNOTSUPP; + memset(&wol, 0, sizeof(struct ethtool_wolinfo)); + wol.cmd = ETHTOOL_GWOL; dev->ethtool_ops->get_wol(dev, &wol); if (copy_to_user(useraddr, &wol, sizeof(wol))) diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c index 7c09d87d3269..68eda10d0680 100644 --- a/net/core/flow_dissector.c +++ b/net/core/flow_dissector.c @@ -1350,30 +1350,21 @@ out_bad: } EXPORT_SYMBOL(__skb_flow_dissect); -static u32 hashrnd __read_mostly; +static siphash_key_t hashrnd __read_mostly; static __always_inline void __flow_hash_secret_init(void) { net_get_random_once(&hashrnd, sizeof(hashrnd)); } -static __always_inline u32 __flow_hash_words(const u32 *words, u32 length, - u32 keyval) +static const void *flow_keys_hash_start(const struct flow_keys *flow) { - return jhash2(words, length, keyval); -} - -static inline const u32 *flow_keys_hash_start(const struct flow_keys *flow) -{ - const void *p = flow; - - BUILD_BUG_ON(FLOW_KEYS_HASH_OFFSET % sizeof(u32)); - return (const u32 *)(p + FLOW_KEYS_HASH_OFFSET); + BUILD_BUG_ON(FLOW_KEYS_HASH_OFFSET % SIPHASH_ALIGNMENT); + return &flow->FLOW_KEYS_HASH_START_FIELD; } static inline size_t flow_keys_hash_length(const struct flow_keys *flow) { size_t diff = FLOW_KEYS_HASH_OFFSET + sizeof(flow->addrs); - BUILD_BUG_ON((sizeof(*flow) - FLOW_KEYS_HASH_OFFSET) % sizeof(u32)); BUILD_BUG_ON(offsetof(typeof(*flow), addrs) != sizeof(*flow) - sizeof(flow->addrs)); @@ -1388,7 +1379,7 @@ static inline size_t flow_keys_hash_length(const struct flow_keys *flow) diff -= sizeof(flow->addrs.tipckey); break; } - return (sizeof(*flow) - diff) / sizeof(u32); + return sizeof(*flow) - diff; } __be32 flow_get_u32_src(const struct flow_keys *flow) @@ -1454,14 +1445,15 @@ static inline void __flow_hash_consistentify(struct flow_keys *keys) } } -static inline u32 __flow_hash_from_keys(struct flow_keys *keys, u32 keyval) +static inline u32 __flow_hash_from_keys(struct flow_keys *keys, + const siphash_key_t *keyval) { u32 hash; __flow_hash_consistentify(keys); - hash = __flow_hash_words(flow_keys_hash_start(keys), - flow_keys_hash_length(keys), keyval); + hash = siphash(flow_keys_hash_start(keys), + flow_keys_hash_length(keys), keyval); if (!hash) hash = 1; @@ -1471,12 +1463,13 @@ static inline u32 __flow_hash_from_keys(struct flow_keys *keys, u32 keyval) u32 flow_hash_from_keys(struct flow_keys *keys) { __flow_hash_secret_init(); - return __flow_hash_from_keys(keys, hashrnd); + return __flow_hash_from_keys(keys, &hashrnd); } EXPORT_SYMBOL(flow_hash_from_keys); static inline u32 ___skb_get_hash(const struct sk_buff *skb, - struct flow_keys *keys, u32 keyval) + struct flow_keys *keys, + const siphash_key_t *keyval) { skb_flow_dissect_flow_keys(skb, keys, FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL); @@ -1524,7 +1517,7 @@ u32 __skb_get_hash_symmetric(const struct sk_buff *skb) &keys, NULL, 0, 0, 0, FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL); - return __flow_hash_from_keys(&keys, hashrnd); + return __flow_hash_from_keys(&keys, &hashrnd); } EXPORT_SYMBOL_GPL(__skb_get_hash_symmetric); @@ -1544,13 +1537,14 @@ void __skb_get_hash(struct sk_buff *skb) __flow_hash_secret_init(); - hash = ___skb_get_hash(skb, &keys, hashrnd); + hash = ___skb_get_hash(skb, &keys, &hashrnd); __skb_set_sw_hash(skb, hash, flow_keys_have_l4(&keys)); } EXPORT_SYMBOL(__skb_get_hash); -__u32 skb_get_hash_perturb(const struct sk_buff *skb, u32 perturb) +__u32 skb_get_hash_perturb(const struct sk_buff *skb, + const siphash_key_t *perturb) { struct flow_keys keys; diff --git a/net/core/lwt_bpf.c b/net/core/lwt_bpf.c index f93785e5833c..74cfb8b5ab33 100644 --- a/net/core/lwt_bpf.c +++ b/net/core/lwt_bpf.c @@ -88,11 +88,16 @@ static int bpf_lwt_input_reroute(struct sk_buff *skb) int err = -EINVAL; if (skb->protocol == htons(ETH_P_IP)) { + struct net_device *dev = skb_dst(skb)->dev; struct iphdr *iph = ip_hdr(skb); + dev_hold(dev); + skb_dst_drop(skb); err = ip_route_input_noref(skb, iph->daddr, iph->saddr, - iph->tos, skb_dst(skb)->dev); + iph->tos, dev); + dev_put(dev); } else if (skb->protocol == htons(ETH_P_IPV6)) { + skb_dst_drop(skb); err = ipv6_stub->ipv6_route_input(skb); } else { err = -EAFNOSUPPORT; diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index 6d3e4821b02d..39402840025e 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -246,11 +246,11 @@ static int __peernet2id(struct net *net, struct net *peer) } static void rtnl_net_notifyid(struct net *net, int cmd, int id, u32 portid, - struct nlmsghdr *nlh); + struct nlmsghdr *nlh, gfp_t gfp); /* This function returns the id of a peer netns. If no id is assigned, one will * be allocated and returned. */ -int peernet2id_alloc(struct net *net, struct net *peer) +int peernet2id_alloc(struct net *net, struct net *peer, gfp_t gfp) { bool alloc = false, alive = false; int id; @@ -269,7 +269,7 @@ int peernet2id_alloc(struct net *net, struct net *peer) id = __peernet2id_alloc(net, peer, &alloc); spin_unlock_bh(&net->nsid_lock); if (alloc && id >= 0) - rtnl_net_notifyid(net, RTM_NEWNSID, id, 0, NULL); + rtnl_net_notifyid(net, RTM_NEWNSID, id, 0, NULL, gfp); if (alive) put_net(peer); return id; @@ -479,6 +479,7 @@ struct net *copy_net_ns(unsigned long flags, if (rv < 0) { put_userns: + key_remove_domain(net->key_domain); put_user_ns(user_ns); net_drop_ns(net); dec_ucounts: @@ -533,7 +534,8 @@ static void unhash_nsid(struct net *net, struct net *last) idr_remove(&tmp->netns_ids, id); spin_unlock_bh(&tmp->nsid_lock); if (id >= 0) - rtnl_net_notifyid(tmp, RTM_DELNSID, id, 0, NULL); + rtnl_net_notifyid(tmp, RTM_DELNSID, id, 0, NULL, + GFP_KERNEL); if (tmp == last) break; } @@ -766,7 +768,7 @@ static int rtnl_net_newid(struct sk_buff *skb, struct nlmsghdr *nlh, spin_unlock_bh(&net->nsid_lock); if (err >= 0) { rtnl_net_notifyid(net, RTM_NEWNSID, err, NETLINK_CB(skb).portid, - nlh); + nlh, GFP_KERNEL); err = 0; } else if (err == -ENOSPC && nsid >= 0) { err = -EEXIST; @@ -1054,7 +1056,7 @@ end: } static void rtnl_net_notifyid(struct net *net, int cmd, int id, u32 portid, - struct nlmsghdr *nlh) + struct nlmsghdr *nlh, gfp_t gfp) { struct net_fill_args fillargs = { .portid = portid, @@ -1065,7 +1067,7 @@ static void rtnl_net_notifyid(struct net *net, int cmd, int id, u32 portid, struct sk_buff *msg; int err = -ENOMEM; - msg = nlmsg_new(rtnl_net_get_size(), GFP_KERNEL); + msg = nlmsg_new(rtnl_net_get_size(), gfp); if (!msg) goto out; @@ -1073,7 +1075,7 @@ static void rtnl_net_notifyid(struct net *net, int cmd, int id, u32 portid, if (err < 0) goto err_out; - rtnl_notify(msg, net, portid, RTNLGRP_NSID, nlh, 0); + rtnl_notify(msg, net, portid, RTNLGRP_NSID, nlh, gfp); return; err_out: diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 1ee6460f8275..ba4b4048ec3e 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1523,7 +1523,7 @@ static noinline_for_stack int nla_put_ifalias(struct sk_buff *skb, static int rtnl_fill_link_netnsid(struct sk_buff *skb, const struct net_device *dev, - struct net *src_net) + struct net *src_net, gfp_t gfp) { bool put_iflink = false; @@ -1531,7 +1531,7 @@ static int rtnl_fill_link_netnsid(struct sk_buff *skb, struct net *link_net = dev->rtnl_link_ops->get_link_net(dev); if (!net_eq(dev_net(dev), link_net)) { - int id = peernet2id_alloc(src_net, link_net); + int id = peernet2id_alloc(src_net, link_net, gfp); if (nla_put_s32(skb, IFLA_LINK_NETNSID, id)) return -EMSGSIZE; @@ -1589,7 +1589,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, int type, u32 pid, u32 seq, u32 change, unsigned int flags, u32 ext_filter_mask, u32 event, int *new_nsid, int new_ifindex, - int tgt_netnsid) + int tgt_netnsid, gfp_t gfp) { struct ifinfomsg *ifm; struct nlmsghdr *nlh; @@ -1681,7 +1681,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, goto nla_put_failure; } - if (rtnl_fill_link_netnsid(skb, dev, src_net)) + if (rtnl_fill_link_netnsid(skb, dev, src_net, gfp)) goto nla_put_failure; if (new_nsid && @@ -2001,7 +2001,7 @@ walk_entries: NETLINK_CB(cb->skb).portid, nlh->nlmsg_seq, 0, flags, ext_filter_mask, 0, NULL, 0, - netnsid); + netnsid, GFP_KERNEL); if (err < 0) { if (likely(skb->len)) @@ -2355,6 +2355,7 @@ static int do_set_master(struct net_device *dev, int ifindex, err = ops->ndo_del_slave(upper_dev, dev); if (err) return err; + netdev_update_lockdep_key(dev); } else { return -EOPNOTSUPP; } @@ -3359,7 +3360,7 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr *nlh, err = rtnl_fill_ifinfo(nskb, dev, net, RTM_NEWLINK, NETLINK_CB(skb).portid, nlh->nlmsg_seq, 0, 0, ext_filter_mask, - 0, NULL, 0, netnsid); + 0, NULL, 0, netnsid, GFP_KERNEL); if (err < 0) { /* -EMSGSIZE implies BUG in if_nlmsg_size */ WARN_ON(err == -EMSGSIZE); @@ -3471,7 +3472,7 @@ struct sk_buff *rtmsg_ifinfo_build_skb(int type, struct net_device *dev, err = rtnl_fill_ifinfo(skb, dev, dev_net(dev), type, 0, 0, change, 0, 0, event, - new_nsid, new_ifindex, -1); + new_nsid, new_ifindex, -1, flags); if (err < 0) { /* -EMSGSIZE implies BUG in if_nlmsg_size() */ WARN_ON(err == -EMSGSIZE); diff --git a/net/dsa/master.c b/net/dsa/master.c index a8e52c9967f4..3255dfc97f86 100644 --- a/net/dsa/master.c +++ b/net/dsa/master.c @@ -310,8 +310,6 @@ static void dsa_master_reset_mtu(struct net_device *dev) rtnl_unlock(); } -static struct lock_class_key dsa_master_addr_list_lock_key; - int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp) { int ret; @@ -325,9 +323,6 @@ int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp) wmb(); dev->dsa_ptr = cpu_dp; - lockdep_set_class(&dev->addr_list_lock, - &dsa_master_addr_list_lock_key); - ret = dsa_master_ethtool_setup(dev); if (ret) return ret; diff --git a/net/dsa/slave.c b/net/dsa/slave.c index 75d58229a4bd..028e65f4b5ba 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -1341,15 +1341,6 @@ static int dsa_slave_phy_setup(struct net_device *slave_dev) return ret; } -static struct lock_class_key dsa_slave_netdev_xmit_lock_key; -static void dsa_slave_set_lockdep_class_one(struct net_device *dev, - struct netdev_queue *txq, - void *_unused) -{ - lockdep_set_class(&txq->_xmit_lock, - &dsa_slave_netdev_xmit_lock_key); -} - int dsa_slave_suspend(struct net_device *slave_dev) { struct dsa_port *dp = dsa_slave_to_port(slave_dev); @@ -1433,9 +1424,6 @@ int dsa_slave_create(struct dsa_port *port) slave_dev->max_mtu = ETH_MAX_MTU; SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); - netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, - NULL); - SET_NETDEV_DEV(slave_dev, port->ds->dev); slave_dev->dev.of_node = port->dn; slave_dev->vlan_features = master->vlan_features; diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c index 3297e7fa9945..c0b107cdd715 100644 --- a/net/ieee802154/6lowpan/core.c +++ b/net/ieee802154/6lowpan/core.c @@ -58,13 +58,6 @@ static const struct header_ops lowpan_header_ops = { .create = lowpan_header_create, }; -static int lowpan_dev_init(struct net_device *ldev) -{ - netdev_lockdep_set_classes(ldev); - - return 0; -} - static int lowpan_open(struct net_device *dev) { if (!open_count) @@ -96,7 +89,6 @@ static int lowpan_get_iflink(const struct net_device *dev) } static const struct net_device_ops lowpan_netdev_ops = { - .ndo_init = lowpan_dev_init, .ndo_start_xmit = lowpan_xmit, .ndo_open = lowpan_open, .ndo_stop = lowpan_stop, diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index dde77f72e03e..71c78d223dfd 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -1148,7 +1148,7 @@ void fib_modify_prefix_metric(struct in_ifaddr *ifa, u32 new_metric) if (!(dev->flags & IFF_UP) || ifa->ifa_flags & (IFA_F_SECONDARY | IFA_F_NOPREFIXROUTE) || ipv4_is_zeronet(prefix) || - prefix == ifa->ifa_local || ifa->ifa_prefixlen == 32) + (prefix == ifa->ifa_local && ifa->ifa_prefixlen == 32)) return; /* add the new */ diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c index fd5ac2788e45..d3b520b9b2c9 100644 --- a/net/l2tp/l2tp_eth.c +++ b/net/l2tp/l2tp_eth.c @@ -56,7 +56,6 @@ static int l2tp_eth_dev_init(struct net_device *dev) { eth_hw_addr_random(dev); eth_broadcast_addr(dev->broadcast); - netdev_lockdep_set_classes(dev); return 0; } diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index c4f54ad2b98a..58d5373c513c 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -64,28 +64,6 @@ static DEFINE_SPINLOCK(nr_list_lock); static const struct proto_ops nr_proto_ops; /* - * NETROM network devices are virtual network devices encapsulating NETROM - * frames into AX.25 which will be sent through an AX.25 device, so form a - * special "super class" of normal net devices; split their locks off into a - * separate class since they always nest. - */ -static struct lock_class_key nr_netdev_xmit_lock_key; -static struct lock_class_key nr_netdev_addr_lock_key; - -static void nr_set_lockdep_one(struct net_device *dev, - struct netdev_queue *txq, - void *_unused) -{ - lockdep_set_class(&txq->_xmit_lock, &nr_netdev_xmit_lock_key); -} - -static void nr_set_lockdep_key(struct net_device *dev) -{ - lockdep_set_class(&dev->addr_list_lock, &nr_netdev_addr_lock_key); - netdev_for_each_tx_queue(dev, nr_set_lockdep_one, NULL); -} - -/* * Socket removal during an interrupt is now safe. */ static void nr_remove_socket(struct sock *sk) @@ -1414,7 +1392,6 @@ static int __init nr_proto_init(void) free_netdev(dev); goto fail; } - nr_set_lockdep_key(dev); dev_nr[i] = dev; } diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index f30e406fbec5..d8c364d637b1 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -1881,7 +1881,7 @@ static struct genl_family dp_datapath_genl_family __ro_after_init = { /* Called with ovs_mutex or RCU read lock. */ static int ovs_vport_cmd_fill_info(struct vport *vport, struct sk_buff *skb, struct net *net, u32 portid, u32 seq, - u32 flags, u8 cmd) + u32 flags, u8 cmd, gfp_t gfp) { struct ovs_header *ovs_header; struct ovs_vport_stats vport_stats; @@ -1902,7 +1902,7 @@ static int ovs_vport_cmd_fill_info(struct vport *vport, struct sk_buff *skb, goto nla_put_failure; if (!net_eq(net, dev_net(vport->dev))) { - int id = peernet2id_alloc(net, dev_net(vport->dev)); + int id = peernet2id_alloc(net, dev_net(vport->dev), gfp); if (nla_put_s32(skb, OVS_VPORT_ATTR_NETNSID, id)) goto nla_put_failure; @@ -1943,11 +1943,12 @@ struct sk_buff *ovs_vport_cmd_build_info(struct vport *vport, struct net *net, struct sk_buff *skb; int retval; - skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); + skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!skb) return ERR_PTR(-ENOMEM); - retval = ovs_vport_cmd_fill_info(vport, skb, net, portid, seq, 0, cmd); + retval = ovs_vport_cmd_fill_info(vport, skb, net, portid, seq, 0, cmd, + GFP_KERNEL); BUG_ON(retval < 0); return skb; @@ -2089,7 +2090,7 @@ restart: err = ovs_vport_cmd_fill_info(vport, reply, genl_info_net(info), info->snd_portid, info->snd_seq, 0, - OVS_VPORT_CMD_NEW); + OVS_VPORT_CMD_NEW, GFP_KERNEL); new_headroom = netdev_get_fwd_headroom(vport->dev); @@ -2150,7 +2151,7 @@ static int ovs_vport_cmd_set(struct sk_buff *skb, struct genl_info *info) err = ovs_vport_cmd_fill_info(vport, reply, genl_info_net(info), info->snd_portid, info->snd_seq, 0, - OVS_VPORT_CMD_SET); + OVS_VPORT_CMD_SET, GFP_KERNEL); BUG_ON(err < 0); ovs_unlock(); @@ -2190,7 +2191,7 @@ static int ovs_vport_cmd_del(struct sk_buff *skb, struct genl_info *info) err = ovs_vport_cmd_fill_info(vport, reply, genl_info_net(info), info->snd_portid, info->snd_seq, 0, - OVS_VPORT_CMD_DEL); + OVS_VPORT_CMD_DEL, GFP_KERNEL); BUG_ON(err < 0); /* the vport deletion may trigger dp headroom update */ @@ -2237,7 +2238,7 @@ static int ovs_vport_cmd_get(struct sk_buff *skb, struct genl_info *info) goto exit_unlock_free; err = ovs_vport_cmd_fill_info(vport, reply, genl_info_net(info), info->snd_portid, info->snd_seq, 0, - OVS_VPORT_CMD_GET); + OVS_VPORT_CMD_GET, GFP_ATOMIC); BUG_ON(err < 0); rcu_read_unlock(); @@ -2273,7 +2274,8 @@ static int ovs_vport_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb) NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, NLM_F_MULTI, - OVS_VPORT_CMD_GET) < 0) + OVS_VPORT_CMD_GET, + GFP_ATOMIC) < 0) goto out; j++; diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index f0e9ccf472a9..6a0df7c8a939 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -65,28 +65,6 @@ static const struct proto_ops rose_proto_ops; ax25_address rose_callsign; /* - * ROSE network devices are virtual network devices encapsulating ROSE - * frames into AX.25 which will be sent through an AX.25 device, so form a - * special "super class" of normal net devices; split their locks off into a - * separate class since they always nest. - */ -static struct lock_class_key rose_netdev_xmit_lock_key; -static struct lock_class_key rose_netdev_addr_lock_key; - -static void rose_set_lockdep_one(struct net_device *dev, - struct netdev_queue *txq, - void *_unused) -{ - lockdep_set_class(&txq->_xmit_lock, &rose_netdev_xmit_lock_key); -} - -static void rose_set_lockdep_key(struct net_device *dev) -{ - lockdep_set_class(&dev->addr_list_lock, &rose_netdev_addr_lock_key); - netdev_for_each_tx_queue(dev, rose_set_lockdep_one, NULL); -} - -/* * Convert a ROSE address into text. */ char *rose2asc(char *buf, const rose_address *addr) @@ -1533,7 +1511,6 @@ static int __init rose_proto_init(void) free_netdev(dev); goto fail; } - rose_set_lockdep_key(dev); dev_rose[i] = dev; } diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 17bd8f539bc7..8769b4b8807d 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -799,9 +799,6 @@ struct Qdisc_ops pfifo_fast_ops __read_mostly = { }; EXPORT_SYMBOL(pfifo_fast_ops); -static struct lock_class_key qdisc_tx_busylock; -static struct lock_class_key qdisc_running_key; - struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue, const struct Qdisc_ops *ops, struct netlink_ext_ack *extack) @@ -854,17 +851,9 @@ struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue, } spin_lock_init(&sch->busylock); - lockdep_set_class(&sch->busylock, - dev->qdisc_tx_busylock ?: &qdisc_tx_busylock); - /* seqlock has the same scope of busylock, for NOLOCK qdisc */ spin_lock_init(&sch->seqlock); - lockdep_set_class(&sch->busylock, - dev->qdisc_tx_busylock ?: &qdisc_tx_busylock); - seqcount_init(&sch->running); - lockdep_set_class(&sch->running, - dev->qdisc_running_key ?: &qdisc_running_key); sch->ops = ops; sch->flags = ops->static_flags; @@ -875,6 +864,12 @@ struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue, dev_hold(dev); refcount_set(&sch->refcnt, 1); + if (sch != &noop_qdisc) { + lockdep_set_class(&sch->busylock, &dev->qdisc_tx_busylock_key); + lockdep_set_class(&sch->seqlock, &dev->qdisc_tx_busylock_key); + lockdep_set_class(&sch->running, &dev->qdisc_running_key); + } + return sch; errout1: kfree(p); @@ -1043,6 +1038,8 @@ static void attach_one_default_qdisc(struct net_device *dev, if (dev->priv_flags & IFF_NO_QUEUE) ops = &noqueue_qdisc_ops; + else if(dev->type == ARPHRD_CAN) + ops = &pfifo_fast_ops; qdisc = qdisc_create_dflt(dev_queue, ops, TC_H_ROOT, NULL); if (!qdisc) { diff --git a/net/sched/sch_hhf.c b/net/sched/sch_hhf.c index 23cd1c873a2c..be35f03b657b 100644 --- a/net/sched/sch_hhf.c +++ b/net/sched/sch_hhf.c @@ -5,11 +5,11 @@ * Copyright (C) 2013 Nandita Dukkipati <[email protected]> */ -#include <linux/jhash.h> #include <linux/jiffies.h> #include <linux/module.h> #include <linux/skbuff.h> #include <linux/vmalloc.h> +#include <linux/siphash.h> #include <net/pkt_sched.h> #include <net/sock.h> @@ -126,7 +126,7 @@ struct wdrr_bucket { struct hhf_sched_data { struct wdrr_bucket buckets[WDRR_BUCKET_CNT]; - u32 perturbation; /* hash perturbation */ + siphash_key_t perturbation; /* hash perturbation */ u32 quantum; /* psched_mtu(qdisc_dev(sch)); */ u32 drop_overlimit; /* number of times max qdisc packet * limit was hit @@ -264,7 +264,7 @@ static enum wdrr_bucket_idx hhf_classify(struct sk_buff *skb, struct Qdisc *sch) } /* Get hashed flow-id of the skb. */ - hash = skb_get_hash_perturb(skb, q->perturbation); + hash = skb_get_hash_perturb(skb, &q->perturbation); /* Check if this packet belongs to an already established HH flow. */ flow_pos = hash & HHF_BIT_MASK; @@ -582,7 +582,7 @@ static int hhf_init(struct Qdisc *sch, struct nlattr *opt, sch->limit = 1000; q->quantum = psched_mtu(qdisc_dev(sch)); - q->perturbation = prandom_u32(); + get_random_bytes(&q->perturbation, sizeof(q->perturbation)); INIT_LIST_HEAD(&q->new_buckets); INIT_LIST_HEAD(&q->old_buckets); diff --git a/net/sched/sch_sfb.c b/net/sched/sch_sfb.c index d448fe3068e5..4074c50ac3d7 100644 --- a/net/sched/sch_sfb.c +++ b/net/sched/sch_sfb.c @@ -18,7 +18,7 @@ #include <linux/errno.h> #include <linux/skbuff.h> #include <linux/random.h> -#include <linux/jhash.h> +#include <linux/siphash.h> #include <net/ip.h> #include <net/pkt_sched.h> #include <net/pkt_cls.h> @@ -45,7 +45,7 @@ struct sfb_bucket { * (Section 4.4 of SFB reference : moving hash functions) */ struct sfb_bins { - u32 perturbation; /* jhash perturbation */ + siphash_key_t perturbation; /* siphash key */ struct sfb_bucket bins[SFB_LEVELS][SFB_NUMBUCKETS]; }; @@ -217,7 +217,8 @@ static u32 sfb_compute_qlen(u32 *prob_r, u32 *avgpm_r, const struct sfb_sched_da static void sfb_init_perturbation(u32 slot, struct sfb_sched_data *q) { - q->bins[slot].perturbation = prandom_u32(); + get_random_bytes(&q->bins[slot].perturbation, + sizeof(q->bins[slot].perturbation)); } static void sfb_swap_slot(struct sfb_sched_data *q) @@ -314,9 +315,9 @@ static int sfb_enqueue(struct sk_buff *skb, struct Qdisc *sch, /* If using external classifiers, get result and record it. */ if (!sfb_classify(skb, fl, &ret, &salt)) goto other_drop; - sfbhash = jhash_1word(salt, q->bins[slot].perturbation); + sfbhash = siphash_1u32(salt, &q->bins[slot].perturbation); } else { - sfbhash = skb_get_hash_perturb(skb, q->bins[slot].perturbation); + sfbhash = skb_get_hash_perturb(skb, &q->bins[slot].perturbation); } @@ -352,7 +353,7 @@ static int sfb_enqueue(struct sk_buff *skb, struct Qdisc *sch, /* Inelastic flow */ if (q->double_buffering) { sfbhash = skb_get_hash_perturb(skb, - q->bins[slot].perturbation); + &q->bins[slot].perturbation); if (!sfbhash) sfbhash = 1; sfb_skb_cb(skb)->hashes[slot] = sfbhash; diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c index 68404a9d2ce4..c787d4d46017 100644 --- a/net/sched/sch_sfq.c +++ b/net/sched/sch_sfq.c @@ -14,7 +14,7 @@ #include <linux/errno.h> #include <linux/init.h> #include <linux/skbuff.h> -#include <linux/jhash.h> +#include <linux/siphash.h> #include <linux/slab.h> #include <linux/vmalloc.h> #include <net/netlink.h> @@ -117,7 +117,7 @@ struct sfq_sched_data { u8 headdrop; u8 maxdepth; /* limit of packets per flow */ - u32 perturbation; + siphash_key_t perturbation; u8 cur_depth; /* depth of longest slot */ u8 flags; unsigned short scaled_quantum; /* SFQ_ALLOT_SIZE(quantum) */ @@ -157,7 +157,7 @@ static inline struct sfq_head *sfq_dep_head(struct sfq_sched_data *q, sfq_index static unsigned int sfq_hash(const struct sfq_sched_data *q, const struct sk_buff *skb) { - return skb_get_hash_perturb(skb, q->perturbation) & (q->divisor - 1); + return skb_get_hash_perturb(skb, &q->perturbation) & (q->divisor - 1); } static unsigned int sfq_classify(struct sk_buff *skb, struct Qdisc *sch, @@ -607,9 +607,11 @@ static void sfq_perturbation(struct timer_list *t) struct sfq_sched_data *q = from_timer(q, t, perturb_timer); struct Qdisc *sch = q->sch; spinlock_t *root_lock = qdisc_lock(qdisc_root_sleeping(sch)); + siphash_key_t nkey; + get_random_bytes(&nkey, sizeof(nkey)); spin_lock(root_lock); - q->perturbation = prandom_u32(); + q->perturbation = nkey; if (!q->filter_list && q->tail) sfq_rehash(sch); spin_unlock(root_lock); @@ -688,7 +690,7 @@ static int sfq_change(struct Qdisc *sch, struct nlattr *opt) del_timer(&q->perturb_timer); if (q->perturb_period) { mod_timer(&q->perturb_timer, jiffies + q->perturb_period); - q->perturbation = prandom_u32(); + get_random_bytes(&q->perturbation, sizeof(q->perturbation)); } sch_tree_unlock(sch); kfree(p); @@ -745,7 +747,7 @@ static int sfq_init(struct Qdisc *sch, struct nlattr *opt, q->quantum = psched_mtu(qdisc_dev(sch)); q->scaled_quantum = SFQ_ALLOT_SIZE(q->quantum); q->perturb_period = 0; - q->perturbation = prandom_u32(); + get_random_bytes(&q->perturbation, sizeof(q->perturbation)); if (opt) { int err = sfq_change(sch, opt); diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 5b932583e407..cea3c36ea0da 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -123,6 +123,12 @@ struct proto smc_proto6 = { }; EXPORT_SYMBOL_GPL(smc_proto6); +static void smc_restore_fallback_changes(struct smc_sock *smc) +{ + smc->clcsock->file->private_data = smc->sk.sk_socket; + smc->clcsock->file = NULL; +} + static int __smc_release(struct smc_sock *smc) { struct sock *sk = &smc->sk; @@ -141,6 +147,7 @@ static int __smc_release(struct smc_sock *smc) } sk->sk_state = SMC_CLOSED; sk->sk_state_change(sk); + smc_restore_fallback_changes(smc); } sk->sk_prot->unhash(sk); @@ -1291,8 +1298,8 @@ static void smc_listen_work(struct work_struct *work) /* check if RDMA is available */ if (!ism_supported) { /* SMC_TYPE_R or SMC_TYPE_B */ /* prepare RDMA check */ - memset(&ini, 0, sizeof(ini)); ini.is_smcd = false; + ini.ism_dev = NULL; ini.ib_lcl = &pclc->lcl; rc = smc_find_rdma_device(new_smc, &ini); if (rc) { diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index 88556f0251ab..2ba97ff325a5 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -561,7 +561,7 @@ int smc_vlan_by_tcpsk(struct socket *clcsock, struct smc_init_info *ini) } rtnl_lock(); - nest_lvl = dev_get_nest_level(ndev); + nest_lvl = ndev->lower_level; for (i = 0; i < nest_lvl; i++) { struct list_head *lower = &ndev->adj_list.lower; diff --git a/net/smc/smc_pnet.c b/net/smc/smc_pnet.c index bab2da8cf17a..2920b006f65c 100644 --- a/net/smc/smc_pnet.c +++ b/net/smc/smc_pnet.c @@ -718,7 +718,7 @@ static struct net_device *pnet_find_base_ndev(struct net_device *ndev) int i, nest_lvl; rtnl_lock(); - nest_lvl = dev_get_nest_level(ndev); + nest_lvl = ndev->lower_level; for (i = 0; i < nest_lvl; i++) { struct list_head *lower = &ndev->adj_list.lower; diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c index 16d5f353163a..3049af269fbf 100644 --- a/net/xdp/xdp_umem.c +++ b/net/xdp/xdp_umem.c @@ -27,6 +27,9 @@ void xdp_add_sk_umem(struct xdp_umem *umem, struct xdp_sock *xs) { unsigned long flags; + if (!xs->tx) + return; + spin_lock_irqsave(&umem->xsk_list_lock, flags); list_add_rcu(&xs->list, &umem->xsk_list); spin_unlock_irqrestore(&umem->xsk_list_lock, flags); @@ -36,6 +39,9 @@ void xdp_del_sk_umem(struct xdp_umem *umem, struct xdp_sock *xs) { unsigned long flags; + if (!xs->tx) + return; + spin_lock_irqsave(&umem->xsk_list_lock, flags); list_del_rcu(&xs->list); spin_unlock_irqrestore(&umem->xsk_list_lock, flags); diff --git a/tools/testing/selftests/bpf/test_tc_edt.sh b/tools/testing/selftests/bpf/test_tc_edt.sh index f38567ef694b..daa7d1b8d309 100755 --- a/tools/testing/selftests/bpf/test_tc_edt.sh +++ b/tools/testing/selftests/bpf/test_tc_edt.sh @@ -59,7 +59,7 @@ ip netns exec ${NS_SRC} tc filter add dev veth_src egress \ # start the listener ip netns exec ${NS_DST} bash -c \ - "nc -4 -l -s ${IP_DST} -p 9000 >/dev/null &" + "nc -4 -l -p 9000 >/dev/null &" declare -i NC_PID=$! sleep 1 diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh index c4ba0ff4a53f..76c1897e6352 100755 --- a/tools/testing/selftests/net/fib_tests.sh +++ b/tools/testing/selftests/net/fib_tests.sh @@ -1438,6 +1438,27 @@ ipv4_addr_metric_test() fi log_test $rc 0 "Prefix route with metric on link up" + # explicitly check for metric changes on edge scenarios + run_cmd "$IP addr flush dev dummy2" + run_cmd "$IP addr add dev dummy2 172.16.104.0/24 metric 259" + run_cmd "$IP addr change dev dummy2 172.16.104.0/24 metric 260" + rc=$? + if [ $rc -eq 0 ]; then + check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.0 metric 260" + rc=$? + fi + log_test $rc 0 "Modify metric of .0/24 address" + + run_cmd "$IP addr flush dev dummy2" + run_cmd "$IP addr add dev dummy2 172.16.104.1/32 peer 172.16.104.2 metric 260" + run_cmd "$IP addr change dev dummy2 172.16.104.1/32 peer 172.16.104.2 metric 261" + rc=$? + if [ $rc -eq 0 ]; then + check_route "172.16.104.2 dev dummy2 proto kernel scope link src 172.16.104.1 metric 261" + rc=$? + fi + log_test $rc 0 "Modify metric of address with peer route" + $IP li del dummy1 $IP li del dummy2 cleanup |