autobuild_mac80211_release/target/linux/mediatek/patches-5.4/999-3014-update-net-bridge-for-bridger.patch

From 120baca4e8b019d03c8d1a29012cea911629247a Mon Sep 17 00:00:00 2001
From: Bc-bocun Chen <bc-bocun.chen@mediatek.com>
Date: Mon, 18 Sep 2023 11:13:51 +0800
Subject: [PATCH 15/22] update-net-bridge-for-bridger

---
 include/net/switchdev.h        |   2 +
 net/bridge/Makefile            |   2 +-
 net/bridge/br_mdb.c            |  32 +-
 net/bridge/br_netlink.c        |   6 +-
 net/bridge/br_netlink_tunnel.c |   4 +-
 net/bridge/br_private.h        | 293 +++++++++++++-
 net/bridge/br_private_tunnel.h |   4 +
 net/bridge/br_vlan.c           | 698 +++++++++++++++++++++++++++++++--
 net/bridge/br_vlan_options.c   | 346 ++++++++++++++++
 net/core/rtnetlink.c           |   1 +
 net/dsa/slave.c                |  11 +
 11 files changed, 1365 insertions(+), 34 deletions(-)
 create mode 100644 net/bridge/br_vlan_options.c

diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 191dc34..d4d71d9 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -77,6 +77,7 @@ struct switchdev_obj {
 struct switchdev_obj_port_vlan {
 	struct switchdev_obj obj;
 	u16 flags;
+	u16 vid;
 	u16 vid_begin;
 	u16 vid_end;
 };
@@ -117,6 +118,7 @@ enum switchdev_notifier_type {
 struct switchdev_notifier_info {
 	struct net_device *dev;
 	struct netlink_ext_ack *extack;
+	const void *ctx;
 };
 
 struct switchdev_notifier_fdb_info {
diff --git a/net/bridge/Makefile b/net/bridge/Makefile
index ac9ef33..49da7ae 100644
--- a/net/bridge/Makefile
+++ b/net/bridge/Makefile
@@ -20,7 +20,7 @@ obj-$(CONFIG_BRIDGE_NETFILTER) += br_netfilter.o
 
 bridge-$(CONFIG_BRIDGE_IGMP_SNOOPING) += br_multicast.o br_mdb.o
 
-bridge-$(CONFIG_BRIDGE_VLAN_FILTERING) += br_vlan.o br_vlan_tunnel.o
+bridge-$(CONFIG_BRIDGE_VLAN_FILTERING) += br_vlan.o br_vlan_tunnel.o br_vlan_options.o
 
 bridge-$(CONFIG_NET_SWITCHDEV) += br_switchdev.o
 
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index da5ed4c..eeabfbc 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -16,7 +16,37 @@
 
 #include "br_private.h"
 
-static int br_rports_fill_info(struct sk_buff *skb, struct netlink_callback *cb,
+static size_t __br_rports_one_size(void)
+{
+	return nla_total_size(sizeof(u32)) + /* MDBA_ROUTER_PORT */
+	       nla_total_size(sizeof(u32)) + /* MDBA_ROUTER_PATTR_TIMER */
+	       nla_total_size(sizeof(u8)) +  /* MDBA_ROUTER_PATTR_TYPE */
+	       nla_total_size(sizeof(u32)) + /* MDBA_ROUTER_PATTR_INET_TIMER */
+	       nla_total_size(sizeof(u32)) + /* MDBA_ROUTER_PATTR_INET6_TIMER */
+	       nla_total_size(sizeof(u32));  /* MDBA_ROUTER_PATTR_VID */
+}
+
+size_t br_rports_size(const struct net_bridge_mcast *brmctx)
+{
+	struct net_bridge_mcast_port *pmctx;
+	size_t size = nla_total_size(0); /* MDBA_ROUTER */
+
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(pmctx, &brmctx->ip4_mc_router_list,
+				 ip4_rlist)
+		size += __br_rports_one_size();
+
+#if IS_ENABLED(CONFIG_IPV6)
+	hlist_for_each_entry_rcu(pmctx, &brmctx->ip6_mc_router_list,
+				 ip6_rlist)
+		size += __br_rports_one_size();
+#endif
+	rcu_read_unlock();
+
+	return size;
+}
+
+int br_rports_fill_info(struct sk_buff *skb, struct netlink_callback *cb,
 			       struct net_device *dev)
 {
 	struct net_bridge *br = netdev_priv(dev);
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index cbcbc19..887e767 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -562,7 +562,7 @@ static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p,
 	return err;
 }
 
-static int br_process_vlan_info(struct net_bridge *br,
+int br_process_vlan_info(struct net_bridge *br,
 				struct net_bridge_port *p, int cmd,
 				struct bridge_vlan_info *vinfo_curr,
 				struct bridge_vlan_info **vinfo_last,
@@ -1578,7 +1578,7 @@ static int br_fill_linkxstats(struct sk_buff *skb,
 		pvid = br_get_pvid(vg);
 		list_for_each_entry(v, &vg->vlan_list, vlist) {
 			struct bridge_vlan_xstats vxi;
-			struct br_vlan_stats stats;
+			struct pcpu_sw_netstats stats;
 
 			if (++vl_idx < *prividx)
 				continue;
@@ -1652,6 +1652,7 @@ int __init br_netlink_init(void)
 	int err;
 
 	br_mdb_init();
+	br_vlan_rtnl_init();
 	rtnl_af_register(&br_af_ops);
 
 	err = rtnl_link_register(&br_link_ops);
@@ -1669,6 +1670,7 @@ int __init br_netlink_init(void)
 void br_netlink_fini(void)
 {
 	br_mdb_uninit();
+	br_vlan_rtnl_uninit();
 	rtnl_af_unregister(&br_af_ops);
 	rtnl_link_unregister(&br_link_ops);
 }
diff --git a/net/bridge/br_netlink_tunnel.c b/net/bridge/br_netlink_tunnel.c
index afee292..3bbbd66 100644
--- a/net/bridge/br_netlink_tunnel.c
+++ b/net/bridge/br_netlink_tunnel.c
@@ -26,7 +26,7 @@ static size_t __get_vlan_tinfo_size(void)
 		  nla_total_size(sizeof(u16)); /* IFLA_BRIDGE_VLAN_TUNNEL_FLAGS */
 }
 
-static bool vlan_tunid_inrange(struct net_bridge_vlan *v_curr,
+bool vlan_tunid_inrange(struct net_bridge_vlan *v_curr,
 			       struct net_bridge_vlan *v_last)
 {
 	__be32 tunid_curr = tunnel_id_to_key32(v_curr->tinfo.tunnel_id);
@@ -193,7 +193,7 @@ static const struct nla_policy vlan_tunnel_policy[IFLA_BRIDGE_VLAN_TUNNEL_MAX +
 	[IFLA_BRIDGE_VLAN_TUNNEL_FLAGS] = { .type = NLA_U16 },
 };
 
-static int br_vlan_tunnel_info(struct net_bridge_port *p, int cmd,
+int br_vlan_tunnel_info(struct net_bridge_port *p, int cmd,
 			       u16 vid, u32 tun_id, bool *changed)
 {
 	int err = 0;
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 4bd9e9b..4620f70 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -95,6 +95,60 @@ struct br_vlan_stats {
 	struct u64_stats_sync syncp;
 };
 
+/* net_bridge_mcast_port must be always defined due to forwarding stubs */
+struct net_bridge_mcast_port {
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+	struct net_bridge_port		*port;
+	struct net_bridge_vlan		*vlan;
+
+	struct bridge_mcast_own_query	ip4_own_query;
+	struct timer_list		ip4_mc_router_timer;
+	struct hlist_node		ip4_rlist;
+#if IS_ENABLED(CONFIG_IPV6)
+	struct bridge_mcast_own_query	ip6_own_query;
+	struct timer_list		ip6_mc_router_timer;
+	struct hlist_node		ip6_rlist;
+#endif /* IS_ENABLED(CONFIG_IPV6) */
+	unsigned char			multicast_router;
+#endif /* CONFIG_BRIDGE_IGMP_SNOOPING */
+};
+
+/* net_bridge_mcast must be always defined due to forwarding stubs */
+struct net_bridge_mcast {
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+	struct net_bridge		*br;
+	struct net_bridge_vlan		*vlan;
+
+	u32				multicast_last_member_count;
+	u32				multicast_startup_query_count;
+
+	u8				multicast_querier;
+	u8				multicast_igmp_version;
+	u8				multicast_router;
+#if IS_ENABLED(CONFIG_IPV6)
+	u8				multicast_mld_version;
+#endif
+	unsigned long			multicast_last_member_interval;
+	unsigned long			multicast_membership_interval;
+	unsigned long			multicast_querier_interval;
+	unsigned long			multicast_query_interval;
+	unsigned long			multicast_query_response_interval;
+	unsigned long			multicast_startup_query_interval;
+	struct hlist_head		ip4_mc_router_list;
+	struct timer_list		ip4_mc_router_timer;
+	struct bridge_mcast_other_query	ip4_other_query;
+	struct bridge_mcast_own_query	ip4_own_query;
+	struct bridge_mcast_querier	ip4_querier;
+#if IS_ENABLED(CONFIG_IPV6)
+	struct hlist_head		ip6_mc_router_list;
+	struct timer_list		ip6_mc_router_timer;
+	struct bridge_mcast_other_query	ip6_other_query;
+	struct bridge_mcast_own_query	ip6_own_query;
+	struct bridge_mcast_querier	ip6_querier;
+#endif /* IS_ENABLED(CONFIG_IPV6) */
+#endif /* CONFIG_BRIDGE_IGMP_SNOOPING */
+};
+
 struct br_tunnel_info {
 	__be64				tunnel_id;
 	struct metadata_dst __rcu	*tunnel_dst;
@@ -104,6 +158,8 @@ struct br_tunnel_info {
 enum {
 	BR_VLFLAG_PER_PORT_STATS = BIT(0),
 	BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1),
+	BR_VLFLAG_MCAST_ENABLED = BIT(2),
+	BR_VLFLAG_GLOBAL_MCAST_ENABLED = BIT(3),
 };
 
 /**
@@ -113,12 +169,16 @@ enum {
  * @vid: VLAN id
  * @flags: bridge vlan flags
  * @priv_flags: private (in-kernel) bridge vlan flags
+ * @state: STP state (e.g. blocking, learning, forwarding)
  * @stats: per-cpu VLAN statistics
  * @br: if MASTER flag set, this points to a bridge struct
  * @port: if MASTER flag unset, this points to a port struct
  * @refcnt: if MASTER flag set, this is bumped for each port referencing it
  * @brvlan: if MASTER flag unset, this points to the global per-VLAN context
  *          for this VLAN entry
+ * @br_mcast_ctx: if MASTER flag set, this is the global vlan multicast context
+ * @port_mcast_ctx: if MASTER flag unset, this is the per-port/vlan multicast
+ *                  context
  * @vlist: sorted list of VLAN entries
  * @rcu: used for entry destruction
  *
@@ -133,7 +193,8 @@ struct net_bridge_vlan {
 	u16				vid;
 	u16				flags;
 	u16				priv_flags;
-	struct br_vlan_stats __percpu	*stats;
+	u8				state;
+	struct pcpu_sw_netstats __percpu *stats;
 	union {
 		struct net_bridge	*br;
 		struct net_bridge_port	*port;
@@ -145,6 +206,11 @@ struct net_bridge_vlan {
 
 	struct br_tunnel_info		tinfo;
 
+	union {
+		struct net_bridge_mcast		br_mcast_ctx;
+		struct net_bridge_mcast_port	port_mcast_ctx;
+	};
+
 	struct list_head		vlist;
 
 	struct rcu_head			rcu;
@@ -170,6 +236,7 @@ struct net_bridge_vlan_group {
 	struct list_head		vlan_list;
 	u16				num_vlans;
 	u16				pvid;
+	u8				pvid_state;
 };
 
 struct net_bridge_fdb_key {
@@ -497,6 +564,67 @@ static inline bool br_vlan_should_use(const struct net_bridge_vlan *v)
 	return true;
 }
 
+static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack)
+{
+	bool ret = vid > 0 && vid < VLAN_VID_MASK;
+
+	if (!ret)
+		NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid");
+
+	return ret;
+}
+
+static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur,
+				       const struct bridge_vlan_info *last,
+				       struct netlink_ext_ack *extack)
+{
+	/* pvid flag is not allowed in ranges */
+	if (cur->flags & BRIDGE_VLAN_INFO_PVID) {
+		NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range");
+		return false;
+	}
+
+	/* when cur is the range end, check if:
+	 *  - it has range start flag
+	 *  - range ids are invalid (end is equal to or before start)
+	 */
+	if (last) {
+		if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
+			NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one");
+			return false;
+		} else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) {
+			NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing");
+			return false;
+		} else if (cur->vid <= last->vid) {
+			NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id");
+			return false;
+		}
+	}
+
+	/* check for required range flags */
+	if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN |
+			    BRIDGE_VLAN_INFO_RANGE_END))) {
+		NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing");
+		return false;
+	}
+
+	return true;
+}
+
+static inline u8 br_vlan_multicast_router(const struct net_bridge_vlan *v)
+{
+	u8 mcast_router = MDB_RTR_TYPE_DISABLED;
+
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+	if (!br_vlan_is_master(v))
+		mcast_router = v->port_mcast_ctx.multicast_router;
+	else
+		mcast_router = v->br_mcast_ctx.multicast_router;
+#endif
+
+	return mcast_router;
+}
+
 static inline int br_opt_get(const struct net_bridge *br,
 			     enum net_bridge_opts opt)
 {
@@ -676,8 +804,10 @@ void br_multicast_flood(struct net_bridge_mdb_entry *mdst,
 			struct sk_buff *skb, bool local_rcv, bool local_orig);
 int br_multicast_set_router(struct net_bridge *br, unsigned long val);
 int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val);
+int br_multicast_set_vlan_router(struct net_bridge_vlan *v, u8 mcast_router);
 int br_multicast_toggle(struct net_bridge *br, unsigned long val);
 int br_multicast_set_querier(struct net_bridge *br, unsigned long val);
+
 int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
 int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val);
 #if IS_ENABLED(CONFIG_IPV6)
@@ -708,6 +838,17 @@ void br_mdb_init(void);
 void br_mdb_uninit(void);
 void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify);
 void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify);
+int br_rports_fill_info(struct sk_buff *skb, struct netlink_callback *cb,
+			       struct net_device *dev);
+int br_multicast_dump_querier_state(struct sk_buff *skb,
+				    const struct net_bridge_mcast *brmctx,
+				    int nest_attr);
+size_t br_multicast_querier_state_size(void);
+size_t br_rports_size(const struct net_bridge_mcast *brmctx);
+void br_multicast_set_query_intvl(struct net_bridge_mcast *brmctx,
+				  unsigned long val);
+void br_multicast_set_startup_query_intvl(struct net_bridge_mcast *brmctx,
+					  unsigned long val);
 
 #define mlock_dereference(X, br) \
 	rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
@@ -760,6 +901,49 @@ static inline int br_multicast_igmp_type(const struct sk_buff *skb)
 {
 	return BR_INPUT_SKB_CB(skb)->igmp;
 }
+static inline bool
+br_rports_have_mc_router(const struct net_bridge_mcast *brmctx)
+{
+#if IS_ENABLED(CONFIG_IPV6)
+	return !hlist_empty(&brmctx->ip4_mc_router_list) ||
+	       !hlist_empty(&brmctx->ip6_mc_router_list);
+#else
+	return !hlist_empty(&brmctx->ip4_mc_router_list);
+#endif
+}
+
+static inline bool
+br_multicast_ctx_options_equal(const struct net_bridge_mcast *brmctx1,
+			       const struct net_bridge_mcast *brmctx2)
+{
+	return brmctx1->multicast_igmp_version ==
+	       brmctx2->multicast_igmp_version &&
+	       brmctx1->multicast_last_member_count ==
+	       brmctx2->multicast_last_member_count &&
+	       brmctx1->multicast_startup_query_count ==
+	       brmctx2->multicast_startup_query_count &&
+	       brmctx1->multicast_last_member_interval ==
+	       brmctx2->multicast_last_member_interval &&
+	       brmctx1->multicast_membership_interval ==
+	       brmctx2->multicast_membership_interval &&
+	       brmctx1->multicast_querier_interval ==
+	       brmctx2->multicast_querier_interval &&
+	       brmctx1->multicast_query_interval ==
+	       brmctx2->multicast_query_interval &&
+	       brmctx1->multicast_query_response_interval ==
+	       brmctx2->multicast_query_response_interval &&
+	       brmctx1->multicast_startup_query_interval ==
+	       brmctx2->multicast_startup_query_interval &&
+	       brmctx1->multicast_querier == brmctx2->multicast_querier &&
+	       brmctx1->multicast_router == brmctx2->multicast_router &&
+	       !br_rports_have_mc_router(brmctx1) &&
+	       !br_rports_have_mc_router(brmctx2) &&
+#if IS_ENABLED(CONFIG_IPV6)
+	       brmctx1->multicast_mld_version ==
+	       brmctx2->multicast_mld_version &&
+#endif
+	       true;
+}
 #else
 static inline int br_multicast_rcv(struct net_bridge *br,
 				   struct net_bridge_port *port,
@@ -907,10 +1091,21 @@ void nbp_vlan_flush(struct net_bridge_port *port);
 int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack);
 int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask);
 void br_vlan_get_stats(const struct net_bridge_vlan *v,
-		       struct br_vlan_stats *stats);
+		       struct pcpu_sw_netstats *stats);
 void br_vlan_port_event(struct net_bridge_port *p, unsigned long event);
 int br_vlan_bridge_event(struct net_device *dev, unsigned long event,
 			 void *ptr);
+void br_vlan_rtnl_init(void);
+void br_vlan_rtnl_uninit(void);
+void br_vlan_notify(const struct net_bridge *br,
+		    const struct net_bridge_port *p,
+		    u16 vid, u16 vid_range,
+		    int cmd);
+int br_vlan_replay(struct net_device *br_dev, struct net_device *dev,
+		   const void *ctx, bool adding, struct notifier_block *nb,
+		   struct netlink_ext_ack *extack);
+bool br_vlan_can_enter_range(struct net_bridge_vlan *v_curr,
+			     struct net_bridge_vlan *range_end);
 
 void br_vlan_fill_forward_path_pvid(struct net_bridge *br,
 				    struct net_device_path_ctx *ctx,
@@ -969,6 +1164,10 @@ static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg)
 	return vg->pvid;
 }
 
+static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid)
+{
+	return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags;
+}
 #else
 static inline bool br_allowed_ingress(const struct net_bridge *br,
 				      struct net_bridge_vlan_group *vg,
@@ -1111,7 +1310,7 @@ static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu(
 }
 
 static inline void br_vlan_get_stats(const struct net_bridge_vlan *v,
-				     struct br_vlan_stats *stats)
+				     struct pcpu_sw_netstats *stats)
 {
 }
 
@@ -1125,6 +1324,88 @@ static inline int br_vlan_bridge_event(struct net_device *dev,
 {
 	return 0;
 }
+
+static inline void br_vlan_rtnl_init(void)
+{
+}
+
+static inline void br_vlan_rtnl_uninit(void)
+{
+}
+
+static inline void br_vlan_notify(const struct net_bridge *br,
+				  const struct net_bridge_port *p,
+				  u16 vid, u16 vid_range,
+				  int cmd)
+{
+}
+
+static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr,
+					   const struct net_bridge_vlan *range_end)
+{
+	return true;
+}
+
+static inline int br_vlan_replay(struct net_device *br_dev,
+				 struct net_device *dev, const void *ctx,
+				 bool adding, struct notifier_block *nb,
+				 struct netlink_ext_ack *extack)
+{
+	return -EOPNOTSUPP;
+}
+#endif
+
+/* br_vlan_options.c */
+#ifdef CONFIG_BRIDGE_VLAN_FILTERING
+bool br_vlan_opts_eq_range(struct net_bridge_vlan *v_curr,
+			   struct net_bridge_vlan *range_end);
+bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v);
+size_t br_vlan_opts_nl_size(void);
+int br_vlan_process_options(const struct net_bridge *br,
+			    struct net_bridge_port *p,
+			    struct net_bridge_vlan *range_start,
+			    struct net_bridge_vlan *range_end,
+			    struct nlattr **tb,
+			    struct netlink_ext_ack *extack);
+bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr,
+					 const struct net_bridge_vlan *r_end);
+bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range,
+			      const struct net_bridge_vlan *v_opts);
+
+/* vlan state manipulation helpers using *_ONCE to annotate lock-free access */
+static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v)
+{
+	return READ_ONCE(v->state);
+}
+
+static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state)
+{
+	WRITE_ONCE(v->state, state);
+}
+
+static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg)
+{
+	return READ_ONCE(vg->pvid_state);
+}
+
+static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg,
+					  u8 state)
+{
+	WRITE_ONCE(vg->pvid_state, state);
+}
+
+/* learn_allow is true at ingress and false at egress */
+static inline bool br_vlan_state_allowed(u8 state, bool learn_allow)
+{
+	switch (state) {
+	case BR_STATE_LEARNING:
+		return learn_allow;
+	case BR_STATE_FORWARDING:
+		return true;
+	default:
+		return false;
+	}
+}
 #endif
 
 struct nf_br_ops {
@@ -1196,6 +1477,12 @@ int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags,
 int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags);
 int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev,
 	       u32 filter_mask, int nlflags);
+int br_process_vlan_info(struct net_bridge *br,
+			 struct net_bridge_port *p, int cmd,
+			 struct bridge_vlan_info *vinfo_curr,
+			 struct bridge_vlan_info **vinfo_last,
+			 bool *changed,
+			 struct netlink_ext_ack *extack);
 
 #ifdef CONFIG_SYSFS
 /* br_sysfs_if.c */
diff --git a/net/bridge/br_private_tunnel.h b/net/bridge/br_private_tunnel.h
index 2bdef2e..25be963 100644
--- a/net/bridge/br_private_tunnel.h
+++ b/net/bridge/br_private_tunnel.h
@@ -42,6 +42,10 @@ int br_handle_ingress_vlan_tunnel(struct sk_buff *skb,
 				  struct net_bridge_vlan_group *vg);
 int br_handle_egress_vlan_tunnel(struct sk_buff *skb,
 				 struct net_bridge_vlan *vlan);
+bool vlan_tunid_inrange(struct net_bridge_vlan *v_curr,
+			struct net_bridge_vlan *v_last);
+int br_vlan_tunnel_info(struct net_bridge_port *p, int cmd,
+			u16 vid, u32 tun_id, bool *changed);
 #else
 static inline int vlan_tunnel_init(struct net_bridge_vlan_group *vg)
 {
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index bcfd169..2b5950c 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -34,13 +34,15 @@ static struct net_bridge_vlan *br_vlan_lookup(struct rhashtable *tbl, u16 vid)
 	return rhashtable_lookup_fast(tbl, &vid, br_vlan_rht_params);
 }
 
-static bool __vlan_add_pvid(struct net_bridge_vlan_group *vg, u16 vid)
+static bool __vlan_add_pvid(struct net_bridge_vlan_group *vg,
+			    const struct net_bridge_vlan *v)
 {
-	if (vg->pvid == vid)
+	if (vg->pvid == v->vid)
 		return false;
 
 	smp_wmb();
-	vg->pvid = vid;
+	br_vlan_set_pvid_state(vg, v->state);
+	vg->pvid = v->vid;
 
 	return true;
 }
@@ -69,7 +71,7 @@ static bool __vlan_add_flags(struct net_bridge_vlan *v, u16 flags)
 		vg = nbp_vlan_group(v->port);
 
 	if (flags & BRIDGE_VLAN_INFO_PVID)
-		ret = __vlan_add_pvid(vg, v->vid);
+		ret = __vlan_add_pvid(vg, v);
 	else
 		ret = __vlan_delete_pvid(vg, v->vid);
 
@@ -257,6 +259,10 @@ static int __vlan_add(struct net_bridge_vlan *v, u16 flags,
 					  &changed, extack);
 			if (err)
 				goto out_filt;
+
+			if (changed)
+				br_vlan_notify(br, NULL, v->vid, 0,
+					       RTM_NEWVLAN);
 		}
 
 		masterv = br_vlan_get_master(br, v->vid, extack);
@@ -266,7 +272,7 @@ static int __vlan_add(struct net_bridge_vlan *v, u16 flags,
 		}
 		v->brvlan = masterv;
 		if (br_opt_get(br, BROPT_VLAN_STATS_PER_PORT)) {
-			v->stats = netdev_alloc_pcpu_stats(struct br_vlan_stats);
+			v->stats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
 			if (!v->stats) {
 				err = -ENOMEM;
 				goto out_filt;
@@ -382,13 +388,31 @@ static void __vlan_group_free(struct net_bridge_vlan_group *vg)
 	kfree(vg);
 }
 
-static void __vlan_flush(struct net_bridge_vlan_group *vg)
+static void __vlan_flush(const struct net_bridge *br,
+			 const struct net_bridge_port *p,
+			 struct net_bridge_vlan_group *vg)
 {
 	struct net_bridge_vlan *vlan, *tmp;
+	u16 v_start = 0, v_end = 0;
 
 	__vlan_delete_pvid(vg, vg->pvid);
-	list_for_each_entry_safe(vlan, tmp, &vg->vlan_list, vlist)
+	list_for_each_entry_safe(vlan, tmp, &vg->vlan_list, vlist) {
+		/* take care of disjoint ranges */
+		if (!v_start) {
+			v_start = vlan->vid;
+		} else if (vlan->vid - v_end != 1) {
+			/* found range end, notify and start next one */
+			br_vlan_notify(br, p, v_start, v_end, RTM_DELVLAN);
+			v_start = vlan->vid;
+		}
+		v_end = vlan->vid;
+
 		__vlan_del(vlan);
+	}
+
+	/* notify about the last/whole vlan range */
+	if (v_start)
+		br_vlan_notify(br, p, v_start, v_end, RTM_DELVLAN);
 }
 
 struct sk_buff *br_handle_vlan(struct net_bridge *br,
@@ -396,7 +420,7 @@ struct sk_buff *br_handle_vlan(struct net_bridge *br,
 			       struct net_bridge_vlan_group *vg,
 			       struct sk_buff *skb)
 {
-	struct br_vlan_stats *stats;
+	struct pcpu_sw_netstats *stats;
 	struct net_bridge_vlan *v;
 	u16 vid;
 
@@ -448,7 +472,7 @@ static bool __allowed_ingress(const struct net_bridge *br,
 			      struct net_bridge_vlan_group *vg,
 			      struct sk_buff *skb, u16 *vid)
 {
-	struct br_vlan_stats *stats;
+	struct pcpu_sw_netstats *stats;
 	struct net_bridge_vlan *v;
 	bool tagged;
 
@@ -666,7 +690,7 @@ int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, bool *changed,
 	if (!vlan)
 		return -ENOMEM;
 
-	vlan->stats = netdev_alloc_pcpu_stats(struct br_vlan_stats);
+	vlan->stats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
 	if (!vlan->stats) {
 		kfree(vlan);
 		return -ENOMEM;
@@ -718,7 +742,7 @@ void br_vlan_flush(struct net_bridge *br)
 	ASSERT_RTNL();
 
 	vg = br_vlan_group(br);
-	__vlan_flush(vg);
+	__vlan_flush(br, NULL, vg);
 	RCU_INIT_POINTER(br->vlgrp, NULL);
 	synchronize_rcu();
 	__vlan_group_free(vg);
@@ -927,12 +951,15 @@ static void br_vlan_disable_default_pvid(struct net_bridge *br)
 	/* Disable default_pvid on all ports where it is still
 	 * configured.
 	 */
-	if (vlan_default_pvid(br_vlan_group(br), pvid))
-		br_vlan_delete(br, pvid);
+	if (vlan_default_pvid(br_vlan_group(br), pvid)) {
+		if (!br_vlan_delete(br, pvid))
+			br_vlan_notify(br, NULL, pvid, 0, RTM_DELVLAN);
+	}
 
 	list_for_each_entry(p, &br->port_list, list) {
-		if (vlan_default_pvid(nbp_vlan_group(p), pvid))
-			nbp_vlan_delete(p, pvid);
+		if (vlan_default_pvid(nbp_vlan_group(p), pvid) &&
+		    !nbp_vlan_delete(p, pvid))
+			br_vlan_notify(br, p, pvid, 0, RTM_DELVLAN);
 	}
 
 	br->default_pvid = 0;
@@ -974,7 +1001,10 @@ int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid,
 				  &vlchange, extack);
 		if (err)
 			goto out;
-		br_vlan_delete(br, old_pvid);
+
+		if (br_vlan_delete(br, old_pvid))
+			br_vlan_notify(br, NULL, old_pvid, 0, RTM_DELVLAN);
+		br_vlan_notify(br, NULL, pvid, 0, RTM_NEWVLAN);
 		set_bit(0, changed);
 	}
 
@@ -994,7 +1024,9 @@ int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid,
 				   &vlchange, extack);
 		if (err)
 			goto err_port;
-		nbp_vlan_delete(p, old_pvid);
+		if (nbp_vlan_delete(p, old_pvid))
+			br_vlan_notify(br, p, old_pvid, 0, RTM_DELVLAN);
+		br_vlan_notify(p->br, p, pvid, 0, RTM_NEWVLAN);
 		set_bit(p->port_no, changed);
 	}
 
@@ -1009,22 +1041,28 @@ int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid,
 		if (!test_bit(p->port_no, changed))
 			continue;
 
-		if (old_pvid)
+		if (old_pvid) {
 			nbp_vlan_add(p, old_pvid,
 				     BRIDGE_VLAN_INFO_PVID |
 				     BRIDGE_VLAN_INFO_UNTAGGED,
 				     &vlchange, NULL);
+			br_vlan_notify(p->br, p, old_pvid, 0, RTM_NEWVLAN);
+		}
 		nbp_vlan_delete(p, pvid);
+		br_vlan_notify(br, p, pvid, 0, RTM_DELVLAN);
 	}
 
 	if (test_bit(0, changed)) {
-		if (old_pvid)
+		if (old_pvid) {
 			br_vlan_add(br, old_pvid,
 				    BRIDGE_VLAN_INFO_PVID |
 				    BRIDGE_VLAN_INFO_UNTAGGED |
 				    BRIDGE_VLAN_INFO_BRENTRY,
 				    &vlchange, NULL);
+			br_vlan_notify(br, NULL, old_pvid, 0, RTM_NEWVLAN);
+		}
 		br_vlan_delete(br, pvid);
+		br_vlan_notify(br, NULL, pvid, 0, RTM_DELVLAN);
 	}
 	goto out;
 }
@@ -1117,6 +1155,7 @@ int nbp_vlan_init(struct net_bridge_port *p, struct netlink_ext_ack *extack)
 				   &changed, extack);
 		if (ret)
 			goto err_vlan_add;
+		br_vlan_notify(p->br, p, p->br->default_pvid, 0, RTM_NEWVLAN);
 	}
 out:
 	return ret;
@@ -1198,21 +1237,21 @@ void nbp_vlan_flush(struct net_bridge_port *port)
 	ASSERT_RTNL();
 
 	vg = nbp_vlan_group(port);
-	__vlan_flush(vg);
+	__vlan_flush(port->br, port, vg);
 	RCU_INIT_POINTER(port->vlgrp, NULL);
 	synchronize_rcu();
 	__vlan_group_free(vg);
 }
 
 void br_vlan_get_stats(const struct net_bridge_vlan *v,
-		       struct br_vlan_stats *stats)
+		       struct pcpu_sw_netstats *stats)
 {
 	int i;
 
 	memset(stats, 0, sizeof(*stats));
 	for_each_possible_cpu(i) {
 		u64 rxpackets, rxbytes, txpackets, txbytes;
-		struct br_vlan_stats *cpu_stats;
+		struct pcpu_sw_netstats *cpu_stats;
 		unsigned int start;
 
 		cpu_stats = per_cpu_ptr(v->stats, i);
@@ -1526,8 +1565,8 @@ int br_vlan_bridge_event(struct net_device *dev, unsigned long event, void *ptr)
 {
 	struct netdev_notifier_changeupper_info *info;
 	struct net_bridge *br = netdev_priv(dev);
-	bool changed;
-	int ret = 0;
+	int vlcmd = 0, ret = 0;
+	bool changed = false;
 
 	switch (event) {
 	case NETDEV_REGISTER:
@@ -1535,9 +1574,11 @@ int br_vlan_bridge_event(struct net_device *dev, unsigned long event, void *ptr)
 				  BRIDGE_VLAN_INFO_PVID |
 				  BRIDGE_VLAN_INFO_UNTAGGED |
 				  BRIDGE_VLAN_INFO_BRENTRY, &changed, NULL);
+		vlcmd = RTM_NEWVLAN;
 		break;
 	case NETDEV_UNREGISTER:
-		br_vlan_delete(br, br->default_pvid);
+		changed = !br_vlan_delete(br, br->default_pvid);
+		vlcmd = RTM_DELVLAN;
 		break;
 	case NETDEV_CHANGEUPPER:
 		info = ptr;
@@ -1551,6 +1592,8 @@ int br_vlan_bridge_event(struct net_device *dev, unsigned long event, void *ptr)
 		br_vlan_link_state_change(dev, br);
 		break;
 	}
+	if (changed)
+		br_vlan_notify(br, NULL, br->default_pvid, 0, vlcmd);
 
 	return ret;
 }
@@ -1569,3 +1612,608 @@ void br_vlan_port_event(struct net_bridge_port *p, unsigned long event)
 		break;
 	}
 }
+
+static bool br_vlan_stats_fill(struct sk_buff *skb,
+			       const struct net_bridge_vlan *v)
+{
+	struct pcpu_sw_netstats stats;
+	struct nlattr *nest;
+
+	nest = nla_nest_start(skb, BRIDGE_VLANDB_ENTRY_STATS);
+	if (!nest)
+		return false;
+
+	br_vlan_get_stats(v, &stats);
+	if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_STATS_RX_BYTES, stats.rx_bytes,
+			      BRIDGE_VLANDB_STATS_PAD) ||
+	    nla_put_u64_64bit(skb, BRIDGE_VLANDB_STATS_RX_PACKETS,
+			      stats.rx_packets, BRIDGE_VLANDB_STATS_PAD) ||
+	    nla_put_u64_64bit(skb, BRIDGE_VLANDB_STATS_TX_BYTES, stats.tx_bytes,
+			      BRIDGE_VLANDB_STATS_PAD) ||
+	    nla_put_u64_64bit(skb, BRIDGE_VLANDB_STATS_TX_PACKETS,
+			      stats.tx_packets, BRIDGE_VLANDB_STATS_PAD))
+		goto out_err;
+
+	nla_nest_end(skb, nest);
+
+	return true;
+
+out_err:
+	nla_nest_cancel(skb, nest);
+	return false;
+}
+
+/* v_opts is used to dump the options which must be equal in the whole range */
+static bool br_vlan_fill_vids(struct sk_buff *skb, u16 vid, u16 vid_range,
+			      const struct net_bridge_vlan *v_opts,
+			      u16 flags,
+			      bool dump_stats)
+{
+	struct bridge_vlan_info info;
+	struct nlattr *nest;
+
+	nest = nla_nest_start(skb, BRIDGE_VLANDB_ENTRY);
+	if (!nest)
+		return false;
+
+	memset(&info, 0, sizeof(info));
+	info.vid = vid;
+	if (flags & BRIDGE_VLAN_INFO_UNTAGGED)
+		info.flags |= BRIDGE_VLAN_INFO_UNTAGGED;
+	if (flags & BRIDGE_VLAN_INFO_PVID)
+		info.flags |= BRIDGE_VLAN_INFO_PVID;
+
+	if (nla_put(skb, BRIDGE_VLANDB_ENTRY_INFO, sizeof(info), &info))
+		goto out_err;
+
+	if (vid_range && vid < vid_range &&
+	    !(flags & BRIDGE_VLAN_INFO_PVID) &&
+	    nla_put_u16(skb, BRIDGE_VLANDB_ENTRY_RANGE, vid_range))
+		goto out_err;
+
+	if (v_opts) {
+		if (!br_vlan_opts_fill(skb, v_opts))
+			goto out_err;
+
+		if (dump_stats && !br_vlan_stats_fill(skb, v_opts))
+			goto out_err;
+	}
+
+	nla_nest_end(skb, nest);
+
+	return true;
+
+out_err:
+	nla_nest_cancel(skb, nest);
+	return false;
+}
+
+static size_t rtnl_vlan_nlmsg_size(void)
+{
+	return NLMSG_ALIGN(sizeof(struct br_vlan_msg))
+		+ nla_total_size(0) /* BRIDGE_VLANDB_ENTRY */
+		+ nla_total_size(sizeof(u16)) /* BRIDGE_VLANDB_ENTRY_RANGE */
+		+ nla_total_size(sizeof(struct bridge_vlan_info)) /* BRIDGE_VLANDB_ENTRY_INFO */
+		+ br_vlan_opts_nl_size(); /* bridge vlan options */
+}
+
+void br_vlan_notify(const struct net_bridge *br,
+		    const struct net_bridge_port *p,
+		    u16 vid, u16 vid_range,
+		    int cmd)
+{
+	struct net_bridge_vlan_group *vg;
+	struct net_bridge_vlan *v = NULL;
+	struct br_vlan_msg *bvm;
+	struct nlmsghdr *nlh;
+	struct sk_buff *skb;
+	int err = -ENOBUFS;
+	struct net *net;
+	u16 flags = 0;
+	int ifindex;
+
+	/* right now notifications are done only with rtnl held */
+	ASSERT_RTNL();
+
+	if (p) {
+		ifindex = p->dev->ifindex;
+		vg = nbp_vlan_group(p);
+		net = dev_net(p->dev);
+	} else {
+		ifindex = br->dev->ifindex;
+		vg = br_vlan_group(br);
+		net = dev_net(br->dev);
+	}
+
+	skb = nlmsg_new(rtnl_vlan_nlmsg_size(), GFP_KERNEL);
+	if (!skb)
+		goto out_err;
+
+	err = -EMSGSIZE;
+	nlh = nlmsg_put(skb, 0, 0, cmd, sizeof(*bvm), 0);
+	if (!nlh)
+		goto out_err;
+	bvm = nlmsg_data(nlh);
+	memset(bvm, 0, sizeof(*bvm));
+	bvm->family = AF_BRIDGE;
+	bvm->ifindex = ifindex;
+
+	switch (cmd) {
+	case RTM_NEWVLAN:
+		/* need to find the vlan due to flags/options */
+		v = br_vlan_find(vg, vid);
+		if (!v || !br_vlan_should_use(v))
+			goto out_kfree;
+
+		flags = v->flags;
+		if (br_get_pvid(vg) == v->vid)
+			flags |= BRIDGE_VLAN_INFO_PVID;
+		break;
+	case RTM_DELVLAN:
+		break;
+	default:
+		goto out_kfree;
+	}
+
+	if (!br_vlan_fill_vids(skb, vid, vid_range, v, flags, false))
+		goto out_err;
+
+	nlmsg_end(skb, nlh);
+	rtnl_notify(skb, net, 0, RTNLGRP_BRVLAN, NULL, GFP_KERNEL);
+	return;
+
+out_err:
+	rtnl_set_sk_err(net, RTNLGRP_BRVLAN, err);
+out_kfree:
+	kfree_skb(skb);
+}
+
+static int br_vlan_replay_one(struct notifier_block *nb,
+			      struct net_device *dev,
+			      struct switchdev_obj_port_vlan *vlan,
+			      const void *ctx, unsigned long action,
+			      struct netlink_ext_ack *extack)
+{
+	struct switchdev_notifier_port_obj_info obj_info = {
+		.info = {
+			.dev = dev,
+			.extack = extack,
+			.ctx = ctx,
+		},
+		.obj = &vlan->obj,
+	};
+	int err;
+
+	err = nb->notifier_call(nb, action, &obj_info);
+	return notifier_to_errno(err);
+}
+
+int br_vlan_replay(struct net_device *br_dev, struct net_device *dev,
+		   const void *ctx, bool adding, struct notifier_block *nb,
+		   struct netlink_ext_ack *extack)
+{
+	struct net_bridge_vlan_group *vg;
+	struct net_bridge_vlan *v;
+	struct net_bridge_port *p;
+	struct net_bridge *br;
+	unsigned long action;
+	int err = 0;
+	u16 pvid;
+
+	ASSERT_RTNL();
+
+	if (!nb)
+		return 0;
+
+	if (!netif_is_bridge_master(br_dev))
+		return -EINVAL;
+
+	if (!netif_is_bridge_master(dev) && !netif_is_bridge_port(dev))
+		return -EINVAL;
+
+	if (netif_is_bridge_master(dev)) {
+		br = netdev_priv(dev);
+		vg = br_vlan_group(br);
+		p = NULL;
+	} else {
+		p = br_port_get_rtnl(dev);
+		if (WARN_ON(!p))
+			return -EINVAL;
+		vg = nbp_vlan_group(p);
+		br = p->br;
+	}
+
+	if (!vg)
+		return 0;
+
+	if (adding)
+		action = SWITCHDEV_PORT_OBJ_ADD;
+	else
+		action = SWITCHDEV_PORT_OBJ_DEL;
+
+	pvid = br_get_pvid(vg);
+
+	list_for_each_entry(v, &vg->vlan_list, vlist) {
+		struct switchdev_obj_port_vlan vlan = {
+			.obj.orig_dev = dev,
+			.obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
+			.flags = br_vlan_flags(v, pvid),
+			.vid = v->vid,
+		};
+
+		if (!br_vlan_should_use(v))
+			continue;
+
+		err = br_vlan_replay_one(nb, dev, &vlan, ctx, action, extack);
+		if (err)
+			return err;
+	}
+
+	return err;
+}
+
+/* check if v_curr can enter a range ending in range_end */
+bool br_vlan_can_enter_range(struct net_bridge_vlan *v_curr,
+			     struct net_bridge_vlan *range_end)
+{
+	return v_curr->vid - range_end->vid == 1 &&
+	       range_end->flags == v_curr->flags &&
+	       br_vlan_opts_eq_range(v_curr, range_end);
+}
+
+static int br_vlan_dump_dev(const struct net_device *dev,
+			    struct sk_buff *skb,
+			    struct netlink_callback *cb,
+			    u32 dump_flags)
+{
+	struct net_bridge_vlan *v, *range_start = NULL, *range_end = NULL;
+	bool dump_global = !!(dump_flags & BRIDGE_VLANDB_DUMPF_GLOBAL);
+	bool dump_stats = !!(dump_flags & BRIDGE_VLANDB_DUMPF_STATS);
+	struct net_bridge_vlan_group *vg;
+	int idx = 0, s_idx = cb->args[1];
+	struct nlmsghdr *nlh = NULL;
+	struct net_bridge_port *p;
+	struct br_vlan_msg *bvm;
+	struct net_bridge *br;
+	int err = 0;
+	u16 pvid;
+
+	if (!netif_is_bridge_master(dev) && !netif_is_bridge_port(dev))
+		return -EINVAL;
+
+	if (netif_is_bridge_master(dev)) {
+		br = netdev_priv(dev);
+		vg = br_vlan_group_rcu(br);
+		p = NULL;
+	} else {
+		/* global options are dumped only for bridge devices */
+		if (dump_global)
+			return 0;
+
+		p = br_port_get_rcu(dev);
+		if (WARN_ON(!p))
+			return -EINVAL;
+		vg = nbp_vlan_group_rcu(p);
+		br = p->br;
+	}
+
+	if (!vg)
+		return 0;
+
+	nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
+			RTM_NEWVLAN, sizeof(*bvm), NLM_F_MULTI);
+	if (!nlh)
+		return -EMSGSIZE;
+	bvm = nlmsg_data(nlh);
+	memset(bvm, 0, sizeof(*bvm));
+	bvm->family = PF_BRIDGE;
+	bvm->ifindex = dev->ifindex;
+	pvid = br_get_pvid(vg);
+
+	/* idx must stay at range's beginning until it is filled in */
+	list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
+		if (!dump_global && !br_vlan_should_use(v))
+			continue;
+		if (idx < s_idx) {
+			idx++;
+			continue;
+		}
+
+		if (!range_start) {
+			range_start = v;
+			range_end = v;
+			continue;
+		}
+
+		if (dump_global) {
+			if (br_vlan_global_opts_can_enter_range(v, range_end))
+				goto update_end;
+			if (!br_vlan_global_opts_fill(skb, range_start->vid,
+						      range_end->vid,
+						      range_start)) {
+				err = -EMSGSIZE;
+				break;
+			}
+			/* advance number of filled vlans */
+			idx += range_end->vid - range_start->vid + 1;
+
+			range_start = v;
+		} else if (dump_stats || v->vid == pvid ||
+			   !br_vlan_can_enter_range(v, range_end)) {
+			u16 vlan_flags = br_vlan_flags(range_start, pvid);
+
+			if (!br_vlan_fill_vids(skb, range_start->vid,
+					       range_end->vid, range_start,
+					       vlan_flags, dump_stats)) {
+				err = -EMSGSIZE;
+				break;
+			}
+			/* advance number of filled vlans */
+			idx += range_end->vid - range_start->vid + 1;
+
+			range_start = v;
+		}
+update_end:
+		range_end = v;
+	}
+
+	/* err will be 0 and range_start will be set in 3 cases here:
+	 * - first vlan (range_start == range_end)
+	 * - last vlan (range_start == range_end, not in range)
+	 * - last vlan range (range_start != range_end, in range)
+	 */
+	if (!err && range_start) {
+		if (dump_global &&
+		    !br_vlan_global_opts_fill(skb, range_start->vid,
+					      range_end->vid, range_start))
+			err = -EMSGSIZE;
+		else if (!dump_global &&
+			 !br_vlan_fill_vids(skb, range_start->vid,
+					    range_end->vid, range_start,
+					    br_vlan_flags(range_start, pvid),
+					    dump_stats))
+			err = -EMSGSIZE;
+	}
+
+	cb->args[1] = err ? idx : 0;
+
+	nlmsg_end(skb, nlh);
+
+	return err;
+}
+
+static const struct nla_policy br_vlan_db_dump_pol[BRIDGE_VLANDB_DUMP_MAX + 1] = {
+	[BRIDGE_VLANDB_DUMP_FLAGS] = { .type = NLA_U32 },
+};
+
+static int br_vlan_rtm_dump(struct sk_buff *skb, struct netlink_callback *cb)
+{
+	struct nlattr *dtb[BRIDGE_VLANDB_DUMP_MAX + 1];
+	int idx = 0, err = 0, s_idx = cb->args[0];
+	struct net *net = sock_net(skb->sk);
+	struct br_vlan_msg *bvm;
+	struct net_device *dev;
+	u32 dump_flags = 0;
+
+	err = nlmsg_parse(cb->nlh, sizeof(*bvm), dtb, BRIDGE_VLANDB_DUMP_MAX,
+			  br_vlan_db_dump_pol, cb->extack);
+	if (err < 0)
+		return err;
+
+	bvm = nlmsg_data(cb->nlh);
+	if (dtb[BRIDGE_VLANDB_DUMP_FLAGS])
+		dump_flags = nla_get_u32(dtb[BRIDGE_VLANDB_DUMP_FLAGS]);
+
+	rcu_read_lock();
+	if (bvm->ifindex) {
+		dev = dev_get_by_index_rcu(net, bvm->ifindex);
+		if (!dev) {
+			err = -ENODEV;
+			goto out_err;
+		}
+		err = br_vlan_dump_dev(dev, skb, cb, dump_flags);
+		/* if the dump completed without an error we return 0 here */
+		if (err != -EMSGSIZE)
+			goto out_err;
+	} else {
+		for_each_netdev_rcu(net, dev) {
+			if (idx < s_idx)
+				goto skip;
+
+			err = br_vlan_dump_dev(dev, skb, cb, dump_flags);
+			if (err == -EMSGSIZE)
+				break;
+skip:
+			idx++;
+		}
+	}
+	cb->args[0] = idx;
+	rcu_read_unlock();
+
+	return skb->len;
+
+out_err:
+	rcu_read_unlock();
+
+	return err;
+}
+
+static const struct nla_policy br_vlan_db_policy[BRIDGE_VLANDB_ENTRY_MAX + 1] = {
+	[BRIDGE_VLANDB_ENTRY_INFO]	=
+		NLA_POLICY_EXACT_LEN(sizeof(struct bridge_vlan_info)),
+	[BRIDGE_VLANDB_ENTRY_RANGE]	= { .type = NLA_U16 },
+	[BRIDGE_VLANDB_ENTRY_STATE]	= { .type = NLA_U8 },
+	[BRIDGE_VLANDB_ENTRY_TUNNEL_INFO] = { .type = NLA_NESTED },
+	[BRIDGE_VLANDB_ENTRY_MCAST_ROUTER]	= { .type = NLA_U8 },
+};
+
+static int br_vlan_rtm_process_one(struct net_device *dev,
+				   const struct nlattr *attr,
+				   int cmd, struct netlink_ext_ack *extack)
+{
+	struct bridge_vlan_info *vinfo, vrange_end, *vinfo_last = NULL;
+	struct nlattr *tb[BRIDGE_VLANDB_ENTRY_MAX + 1];
+	bool changed = false, skip_processing = false;
+	struct net_bridge_vlan_group *vg;
+	struct net_bridge_port *p = NULL;
+	int err = 0, cmdmap = 0;
+	struct net_bridge *br;
+
+	if (netif_is_bridge_master(dev)) {
+		br = netdev_priv(dev);
+		vg = br_vlan_group(br);
+	} else {
+		p = br_port_get_rtnl(dev);
+		if (WARN_ON(!p))
+			return -ENODEV;
+		br = p->br;
+		vg = nbp_vlan_group(p);
+	}
+
+	if (WARN_ON(!vg))
+		return -ENODEV;
+
+	err = nla_parse_nested(tb, BRIDGE_VLANDB_ENTRY_MAX, attr,
+			       br_vlan_db_policy, extack);
+	if (err)
+		return err;
+
+	if (!tb[BRIDGE_VLANDB_ENTRY_INFO]) {
+		NL_SET_ERR_MSG_MOD(extack, "Missing vlan entry info");
+		return -EINVAL;
+	}
+	memset(&vrange_end, 0, sizeof(vrange_end));
+
+	vinfo = nla_data(tb[BRIDGE_VLANDB_ENTRY_INFO]);
+	if (vinfo->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN |
+			    BRIDGE_VLAN_INFO_RANGE_END)) {
+		NL_SET_ERR_MSG_MOD(extack, "Old-style vlan ranges are not allowed when using RTM vlan calls");
+		return -EINVAL;
+	}
+	if (!br_vlan_valid_id(vinfo->vid, extack))
+		return -EINVAL;
+
+	if (tb[BRIDGE_VLANDB_ENTRY_RANGE]) {
+		vrange_end.vid = nla_get_u16(tb[BRIDGE_VLANDB_ENTRY_RANGE]);
+		/* validate user-provided flags without RANGE_BEGIN */
+		vrange_end.flags = BRIDGE_VLAN_INFO_RANGE_END | vinfo->flags;
+		vinfo->flags |= BRIDGE_VLAN_INFO_RANGE_BEGIN;
+
+		/* vinfo_last is the range start, vinfo the range end */
+		vinfo_last = vinfo;
+		vinfo = &vrange_end;
+
+		if (!br_vlan_valid_id(vinfo->vid, extack) ||
+		    !br_vlan_valid_range(vinfo, vinfo_last, extack))
+			return -EINVAL;
+	}
+
+	switch (cmd) {
+	case RTM_NEWVLAN:
+		cmdmap = RTM_SETLINK;
+		skip_processing = !!(vinfo->flags & BRIDGE_VLAN_INFO_ONLY_OPTS);
+		break;
+	case RTM_DELVLAN:
+		cmdmap = RTM_DELLINK;
+		break;
+	}
+
+	if (!skip_processing) {
+		struct bridge_vlan_info *tmp_last = vinfo_last;
+
+		/* br_process_vlan_info may overwrite vinfo_last */
+		err = br_process_vlan_info(br, p, cmdmap, vinfo, &tmp_last,
+					   &changed, extack);
+
+		/* notify first if anything changed */
+		if (changed)
+			br_ifinfo_notify(cmdmap, br, p);
+
+		if (err)
+			return err;
+	}
+
+	/* deal with options */
+	if (cmd == RTM_NEWVLAN) {
+		struct net_bridge_vlan *range_start, *range_end;
+
+		if (vinfo_last) {
+			range_start = br_vlan_find(vg, vinfo_last->vid);
+			range_end = br_vlan_find(vg, vinfo->vid);
+		} else {
+			range_start = br_vlan_find(vg, vinfo->vid);
+			range_end = range_start;
+		}
+
+		err = br_vlan_process_options(br, p, range_start, range_end,
+					      tb, extack);
+	}
+
+	return err;
+}
+
+static int br_vlan_rtm_process(struct sk_buff *skb, struct nlmsghdr *nlh,
+			       struct netlink_ext_ack *extack)
+{
+	struct net *net = sock_net(skb->sk);
+	struct br_vlan_msg *bvm;
+	struct net_device *dev;
+	struct nlattr *attr;
+	int err, vlans = 0;
+	int rem;
+
+	/* this should validate the header and check for remaining bytes */
+	err = nlmsg_parse(nlh, sizeof(*bvm), NULL, BRIDGE_VLANDB_MAX, NULL,
+			  extack);
+	if (err < 0)
+		return err;
+
+	bvm = nlmsg_data(nlh);
+	dev = __dev_get_by_index(net, bvm->ifindex);
+	if (!dev)
+		return -ENODEV;
+
+	if (!netif_is_bridge_master(dev) && !netif_is_bridge_port(dev)) {
+		NL_SET_ERR_MSG_MOD(extack, "The device is not a valid bridge or bridge port");
+		return -EINVAL;
+	}
+
+	nlmsg_for_each_attr(attr, nlh, sizeof(*bvm), rem) {
+		switch (nla_type(attr)) {
+		case BRIDGE_VLANDB_ENTRY:
+			err = br_vlan_rtm_process_one(dev, attr,
+						      nlh->nlmsg_type,
+						      extack);
+			break;
+		default:
+			continue;
+		}
+
+		vlans++;
+		if (err)
+			break;
+	}
+	if (!vlans) {
+		NL_SET_ERR_MSG_MOD(extack, "No vlans found to process");
+		err = -EINVAL;
+	}
+
+	return err;
+}
+
+void br_vlan_rtnl_init(void)
+{
+	rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_GETVLAN, NULL,
+			     br_vlan_rtm_dump, 0);
+	rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_NEWVLAN,
+			     br_vlan_rtm_process, NULL, 0);
+	rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_DELVLAN,
+			     br_vlan_rtm_process, NULL, 0);
+}
+
+void br_vlan_rtnl_uninit(void)
+{
+	rtnl_unregister(PF_BRIDGE, RTM_GETVLAN);
+	rtnl_unregister(PF_BRIDGE, RTM_NEWVLAN);
+	rtnl_unregister(PF_BRIDGE, RTM_DELVLAN);
+}
diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c
new file mode 100644
index 0000000..5e48c29
--- /dev/null
+++ b/net/bridge/br_vlan_options.c
@@ -0,0 +1,346 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (c) 2020, Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/slab.h>
+#include <net/ip_tunnels.h>
+
+#include "br_private.h"
+#include "br_private_tunnel.h"
+
+static bool __vlan_tun_put(struct sk_buff *skb, const struct net_bridge_vlan *v)
+{
+	__be32 tid = tunnel_id_to_key32(v->tinfo.tunnel_id);
+	struct nlattr *nest;
+
+	if (!v->tinfo.tunnel_dst)
+		return true;
+
+	nest = nla_nest_start(skb, BRIDGE_VLANDB_ENTRY_TUNNEL_INFO);
+	if (!nest)
+		return false;
+	if (nla_put_u32(skb, BRIDGE_VLANDB_TINFO_ID, be32_to_cpu(tid))) {
+		nla_nest_cancel(skb, nest);
+		return false;
+	}
+	nla_nest_end(skb, nest);
+
+	return true;
+}
+
+static bool __vlan_tun_can_enter_range(struct net_bridge_vlan *v_curr,
+				       struct net_bridge_vlan *range_end)
+{
+	return (!v_curr->tinfo.tunnel_dst && !range_end->tinfo.tunnel_dst) ||
+	       vlan_tunid_inrange(v_curr, range_end);
+}
+
+/* check if the options' state of v_curr allow it to enter the range */
+bool br_vlan_opts_eq_range(struct net_bridge_vlan *v_curr,
+			   struct net_bridge_vlan *range_end)
+{
+	u8 range_mc_rtr = br_vlan_multicast_router(range_end);
+	u8 curr_mc_rtr = br_vlan_multicast_router(v_curr);
+
+	return v_curr->state == range_end->state &&
+	       __vlan_tun_can_enter_range(v_curr, range_end) &&
+	       curr_mc_rtr == range_mc_rtr;
+}
+
+bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v)
+{
+	if (nla_put_u8(skb, BRIDGE_VLANDB_ENTRY_STATE, br_vlan_get_state(v)) ||
+	    !__vlan_tun_put(skb, v))
+		return false;
+
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+	if (nla_put_u8(skb, BRIDGE_VLANDB_ENTRY_MCAST_ROUTER,
+		       br_vlan_multicast_router(v)))
+		return false;
+#endif
+
+	return true;
+}
+
+size_t br_vlan_opts_nl_size(void)
+{
+	return nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_ENTRY_STATE */
+	       + nla_total_size(0) /* BRIDGE_VLANDB_ENTRY_TUNNEL_INFO */
+	       + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_TINFO_ID */
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+	       + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_ENTRY_MCAST_ROUTER */
+#endif
+	       + 0;
+}
+
+static int br_vlan_modify_state(struct net_bridge_vlan_group *vg,
+				struct net_bridge_vlan *v,
+				u8 state,
+				bool *changed,
+				struct netlink_ext_ack *extack)
+{
+	struct net_bridge *br;
+
+	ASSERT_RTNL();
+
+	if (state > BR_STATE_BLOCKING) {
+		NL_SET_ERR_MSG_MOD(extack, "Invalid vlan state");
+		return -EINVAL;
+	}
+
+	if (br_vlan_is_brentry(v))
+		br = v->br;
+	else
+		br = v->port->br;
+
+	if (br->stp_enabled == BR_KERNEL_STP) {
+		NL_SET_ERR_MSG_MOD(extack, "Can't modify vlan state when using kernel STP");
+		return -EBUSY;
+	}
+
+	if (v->state == state)
+		return 0;
+
+	if (v->vid == br_get_pvid(vg))
+		br_vlan_set_pvid_state(vg, state);
+
+	br_vlan_set_state(v, state);
+	*changed = true;
+
+	return 0;
+}
+
+static const struct nla_policy br_vlandb_tinfo_pol[BRIDGE_VLANDB_TINFO_MAX + 1] = {
+	[BRIDGE_VLANDB_TINFO_ID]	= { .type = NLA_U32 },
+	[BRIDGE_VLANDB_TINFO_CMD]	= { .type = NLA_U32 },
+};
+
+static int br_vlan_modify_tunnel(struct net_bridge_port *p,
+				 struct net_bridge_vlan *v,
+				 struct nlattr **tb,
+				 bool *changed,
+				 struct netlink_ext_ack *extack)
+{
+	struct nlattr *tun_tb[BRIDGE_VLANDB_TINFO_MAX + 1], *attr;
+	struct bridge_vlan_info *vinfo;
+	u32 tun_id = 0;
+	int cmd, err;
+
+	if (!p) {
+		NL_SET_ERR_MSG_MOD(extack, "Can't modify tunnel mapping of non-port vlans");
+		return -EINVAL;
+	}
+	if (!(p->flags & BR_VLAN_TUNNEL)) {
+		NL_SET_ERR_MSG_MOD(extack, "Port doesn't have tunnel flag set");
+		return -EINVAL;
+	}
+
+	attr = tb[BRIDGE_VLANDB_ENTRY_TUNNEL_INFO];
+	err = nla_parse_nested(tun_tb, BRIDGE_VLANDB_TINFO_MAX, attr,
+			       br_vlandb_tinfo_pol, extack);
+	if (err)
+		return err;
+
+	if (!tun_tb[BRIDGE_VLANDB_TINFO_CMD]) {
+		NL_SET_ERR_MSG_MOD(extack, "Missing tunnel command attribute");
+		return -ENOENT;
+	}
+	cmd = nla_get_u32(tun_tb[BRIDGE_VLANDB_TINFO_CMD]);
+	switch (cmd) {
+	case RTM_SETLINK:
+		if (!tun_tb[BRIDGE_VLANDB_TINFO_ID]) {
+			NL_SET_ERR_MSG_MOD(extack, "Missing tunnel id attribute");
+			return -ENOENT;
+		}
+		/* when working on vlan ranges this is the starting tunnel id */
+		tun_id = nla_get_u32(tun_tb[BRIDGE_VLANDB_TINFO_ID]);
+		/* vlan info attr is guaranteed by br_vlan_rtm_process_one */
+		vinfo = nla_data(tb[BRIDGE_VLANDB_ENTRY_INFO]);
+		/* tunnel ids are mapped to each vlan in increasing order,
+		 * the starting vlan is in BRIDGE_VLANDB_ENTRY_INFO and v is the
+		 * current vlan, so we compute: tun_id + v - vinfo->vid
+		 */
+		tun_id += v->vid - vinfo->vid;
+		break;
+	case RTM_DELLINK:
+		break;
+	default:
+		NL_SET_ERR_MSG_MOD(extack, "Unsupported tunnel command");
+		return -EINVAL;
+	}
+
+	return br_vlan_tunnel_info(p, cmd, v->vid, tun_id, changed);
+}
+
+static int br_vlan_process_one_opts(const struct net_bridge *br,
+				    struct net_bridge_port *p,
+				    struct net_bridge_vlan_group *vg,
+				    struct net_bridge_vlan *v,
+				    struct nlattr **tb,
+				    bool *changed,
+				    struct netlink_ext_ack *extack)
+{
+	int err;
+
+	*changed = false;
+	if (tb[BRIDGE_VLANDB_ENTRY_STATE]) {
+		u8 state = nla_get_u8(tb[BRIDGE_VLANDB_ENTRY_STATE]);
+
+		err = br_vlan_modify_state(vg, v, state, changed, extack);
+		if (err)
+			return err;
+	}
+	if (tb[BRIDGE_VLANDB_ENTRY_TUNNEL_INFO]) {
+		err = br_vlan_modify_tunnel(p, v, tb, changed, extack);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+int br_vlan_process_options(const struct net_bridge *br,
+			    struct net_bridge_port *p,
+			    struct net_bridge_vlan *range_start,
+			    struct net_bridge_vlan *range_end,
+			    struct nlattr **tb,
+			    struct netlink_ext_ack *extack)
+{
+	struct net_bridge_vlan *v, *curr_start = NULL, *curr_end = NULL;
+	struct net_bridge_vlan_group *vg;
+	int vid, err = 0;
+	u16 pvid;
+
+	if (p)
+		vg = nbp_vlan_group(p);
+	else
+		vg = br_vlan_group(br);
+
+	if (!range_start || !br_vlan_should_use(range_start)) {
+		NL_SET_ERR_MSG_MOD(extack, "Vlan range start doesn't exist, can't process options");
+		return -ENOENT;
+	}
+	if (!range_end || !br_vlan_should_use(range_end)) {
+		NL_SET_ERR_MSG_MOD(extack, "Vlan range end doesn't exist, can't process options");
+		return -ENOENT;
+	}
+
+	pvid = br_get_pvid(vg);
+	for (vid = range_start->vid; vid <= range_end->vid; vid++) {
+		bool changed = false;
+
+		v = br_vlan_find(vg, vid);
+		if (!v || !br_vlan_should_use(v)) {
+			NL_SET_ERR_MSG_MOD(extack, "Vlan in range doesn't exist, can't process options");
+			err = -ENOENT;
+			break;
+		}
+
+		err = br_vlan_process_one_opts(br, p, vg, v, tb, &changed,
+					       extack);
+		if (err)
+			break;
+
+		if (changed) {
+			/* vlan options changed, check for range */
+			if (!curr_start) {
+				curr_start = v;
+				curr_end = v;
+				continue;
+			}
+
+			if (v->vid == pvid ||
+			    !br_vlan_can_enter_range(v, curr_end)) {
+				br_vlan_notify(br, p, curr_start->vid,
+					       curr_end->vid, RTM_NEWVLAN);
+				curr_start = v;
+			}
+			curr_end = v;
+		} else {
+			/* nothing changed and nothing to notify yet */
+			if (!curr_start)
+				continue;
+
+			br_vlan_notify(br, p, curr_start->vid, curr_end->vid,
+				       RTM_NEWVLAN);
+			curr_start = NULL;
+			curr_end = NULL;
+		}
+	}
+	if (curr_start)
+		br_vlan_notify(br, p, curr_start->vid, curr_end->vid,
+			       RTM_NEWVLAN);
+
+	return err;
+}
+
+bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr,
+					 const struct net_bridge_vlan *r_end)
+{
+	return v_curr->vid - r_end->vid == 1 &&
+	       ((v_curr->priv_flags ^ r_end->priv_flags) &
+		BR_VLFLAG_GLOBAL_MCAST_ENABLED) == 0 &&
+		br_multicast_ctx_options_equal(&v_curr->br_mcast_ctx,
+					       &r_end->br_mcast_ctx);
+}
+
+bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range,
+			      const struct net_bridge_vlan *v_opts)
+{
+	struct nlattr *nest2 __maybe_unused;
+	u64 clockval __maybe_unused;
+	struct nlattr *nest;
+
+	nest = nla_nest_start(skb, BRIDGE_VLANDB_GLOBAL_OPTIONS);
+	if (!nest)
+		return false;
+
+	if (nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_ID, vid))
+		goto out_err;
+
+	if (vid_range && vid < vid_range &&
+	    nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_RANGE, vid_range))
+		goto out_err;
+
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+	clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_last_member_interval);
+	if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL,
+			      clockval, BRIDGE_VLANDB_GOPTS_PAD))
+		goto out_err;
+	clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_membership_interval);
+	if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL,
+			      clockval, BRIDGE_VLANDB_GOPTS_PAD))
+		goto out_err;
+	clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_querier_interval);
+	if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL,
+			      clockval, BRIDGE_VLANDB_GOPTS_PAD))
+		goto out_err;
+	clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_query_interval);
+	if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL,
+			      clockval, BRIDGE_VLANDB_GOPTS_PAD))
+		goto out_err;
+	clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_query_response_interval);
+	if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL,
+			      clockval, BRIDGE_VLANDB_GOPTS_PAD))
+		goto out_err;
+	clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_startup_query_interval);
+	if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL,
+			      clockval, BRIDGE_VLANDB_GOPTS_PAD))
+		goto out_err;
+
+#if IS_ENABLED(CONFIG_IPV6)
+	if (nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION,
+		       v_opts->br_mcast_ctx.multicast_mld_version))
+		goto out_err;
+#endif
+#endif
+
+	nla_nest_end(skb, nest);
+
+	return true;
+
+out_err:
+	nla_nest_cancel(skb, nest);
+	return false;
+}
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index da1ef00..b896f71 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1998,6 +1998,7 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
 				goto cont;
 			if (idx < s_idx)
 				goto cont;
+
 			err = rtnl_fill_ifinfo(skb, dev, net,
 					       RTM_NEWLINK,
 					       NETLINK_CB(cb->skb).portid,
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 2dfaa1e..a60a26c 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1495,8 +1495,19 @@ int dsa_slave_create(struct dsa_port *port)
 		goto out_phy;
 	}
 
+	rtnl_lock();
+
+	ret = netdev_upper_dev_link(master, slave_dev, NULL);
+
+	rtnl_unlock();
+
+	if (ret)
+		goto out_unregister;
+
 	return 0;
 
+out_unregister:
+	unregister_netdev(slave_dev);
 out_phy:
 	rtnl_lock();
 	phylink_disconnect_phy(p->dp->pl);
-- 
2.18.0