Merge remote-tracking branch 'net-next/master' into mac80211-next

This brings in commit 7a7c0a6438b8 ("mac80211: fix TX aggregation
start/stop callback race") to allow the follow-up cleanup.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

27 files changed, 270 insertions, 110 deletions

diff --git a/include/net/act_api.h b/include/net/act_api.h
index cfa2ae33da9a..26ffd8333f50 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -42,6 +42,7 @@ struct tc_action {
 	struct gnet_stats_basic_cpu __percpu *cpu_bstats;
 	struct gnet_stats_queue __percpu *cpu_qstats;
 	struct tc_cookie	*act_cookie;
+	struct tcf_chain	*goto_chain;
 };
 #define tcf_head	common.tcfa_head
 #define tcf_index	common.tcfa_index
@@ -180,12 +181,12 @@ int tcf_unregister_action(struct tc_action_ops *a,
 int tcf_action_destroy(struct list_head *actions, int bind);
 int tcf_action_exec(struct sk_buff *skb, struct tc_action **actions,
 		    int nr_actions, struct tcf_result *res);
-int tcf_action_init(struct net *net, struct nlattr *nla,
-				  struct nlattr *est, char *n, int ovr,
-				  int bind, struct list_head *);
-struct tc_action *tcf_action_init_1(struct net *net, struct nlattr *nla,
-				    struct nlattr *est, char *n, int ovr,
-				    int bind);
+int tcf_action_init(struct net *net, struct tcf_proto *tp, struct nlattr *nla,
+		    struct nlattr *est, char *name, int ovr, int bind,
+		    struct list_head *actions);
+struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
+				    struct nlattr *nla, struct nlattr *est,
+				    char *name, int ovr, int bind);
 int tcf_action_dump(struct sk_buff *skb, struct list_head *, int, int);
 int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);
 int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int);
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 99aa5e5e3100..fe98f0a5bef0 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -399,6 +399,7 @@ enum {
 #define HCI_LE_PING			0x10
 #define HCI_LE_DATA_LEN_EXT		0x20
 #define HCI_LE_EXT_SCAN_POLICY		0x80
+#define HCI_LE_CHAN_SEL_ALG2		0x40
 
 /* Connection modes */
 #define HCI_CM_ACTIVE	0x0000
@@ -1498,6 +1499,13 @@ struct hci_rp_le_read_max_data_len {
 	__le16	rx_time;
 } __packed;
 
+#define HCI_OP_LE_SET_DEFAULT_PHY	0x2031
+struct hci_cp_le_set_default_phy {
+	__u8    all_phys;
+	__u8    tx_phys;
+	__u8    rx_phys;
+} __packed;
+
 /* ---- HCI Events ---- */
 #define HCI_EV_INQUIRY_COMPLETE		0x01
 
diff --git a/include/net/bond_options.h b/include/net/bond_options.h
index 1797235cd590..d79d28f5318c 100644
--- a/include/net/bond_options.h
+++ b/include/net/bond_options.h
@@ -104,6 +104,8 @@ struct bond_option {
 
 int __bond_opt_set(struct bonding *bond, unsigned int option,
 		   struct bond_opt_value *val);
+int __bond_opt_set_notify(struct bonding *bond, unsigned int option,
+			  struct bond_opt_value *val);
 int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf);
 
 const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt,
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 8e24677b1c62..2effb0af9d7c 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -20,6 +20,7 @@
 #include <linux/of.h>
 #include <linux/ethtool.h>
 #include <net/devlink.h>
+#include <net/switchdev.h>
 
 struct tc_action;
 struct phy_device;
@@ -27,13 +28,14 @@ struct fixed_phy_status;
 
 enum dsa_tag_protocol {
 	DSA_TAG_PROTO_NONE = 0,
+	DSA_TAG_PROTO_BRCM,
 	DSA_TAG_PROTO_DSA,
-	DSA_TAG_PROTO_TRAILER,
 	DSA_TAG_PROTO_EDSA,
-	DSA_TAG_PROTO_BRCM,
-	DSA_TAG_PROTO_QCA,
-	DSA_TAG_PROTO_MTK,
+	DSA_TAG_PROTO_KSZ,
 	DSA_TAG_PROTO_LAN9303,
+	DSA_TAG_PROTO_MTK,
+	DSA_TAG_PROTO_QCA,
+	DSA_TAG_PROTO_TRAILER,
 	DSA_TAG_LAST,		/* MUST BE LAST */
 };
 
@@ -125,6 +127,8 @@ struct dsa_switch_tree {
 	 * protocol to use.
 	 */
 	struct net_device	*master_netdev;
+
+	/* Copy of tag_ops->rcv for faster access in hot path */
 	struct sk_buff *	(*rcv)(struct sk_buff *skb,
 				       struct net_device *dev,
 				       struct packet_type *pt,
@@ -137,10 +141,9 @@ struct dsa_switch_tree {
 	const struct ethtool_ops *master_orig_ethtool_ops;
 
 	/*
-	 * The switch and port to which the CPU is attached.
+	 * The switch port to which the CPU is attached.
 	 */
-	struct dsa_switch	*cpu_switch;
-	s8			cpu_port;
+	struct dsa_port		*cpu_dp;
 
 	/*
 	 * Data for the individual switch chips.
@@ -251,7 +254,7 @@ struct dsa_switch {
 
 static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
 {
-	return !!(ds == ds->dst->cpu_switch && p == ds->dst->cpu_port);
+	return !!(ds->cpu_port_mask & (1 << p));
 }
 
 static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p)
@@ -279,28 +282,12 @@ static inline u8 dsa_upstream_port(struct dsa_switch *ds)
 	 * Else return the (DSA) port number that connects to the
 	 * switch that is one hop closer to the cpu.
 	 */
-	if (dst->cpu_switch == ds)
-		return dst->cpu_port;
+	if (dst->cpu_dp->ds == ds)
+		return dst->cpu_dp->index;
 	else
-		return ds->rtable[dst->cpu_switch->index];
+		return ds->rtable[dst->cpu_dp->ds->index];
 }
 
-struct switchdev_trans;
-struct switchdev_obj;
-struct switchdev_obj_port_fdb;
-struct switchdev_obj_port_mdb;
-struct switchdev_obj_port_vlan;
-
-#define DSA_NOTIFIER_BRIDGE_JOIN		1
-#define DSA_NOTIFIER_BRIDGE_LEAVE		2
-
-/* DSA_NOTIFIER_BRIDGE_* */
-struct dsa_notifier_bridge_info {
-	struct net_device *br;
-	int sw_index;
-	int port;
-};
-
 struct dsa_switch_ops {
 	/*
 	 * Legacy probing.
@@ -410,7 +397,7 @@ struct dsa_switch_ops {
 				 const struct switchdev_obj_port_vlan *vlan);
 	int	(*port_vlan_dump)(struct dsa_switch *ds, int port,
 				  struct switchdev_obj_port_vlan *vlan,
-				  int (*cb)(struct switchdev_obj *obj));
+				  switchdev_obj_dump_cb_t *cb);
 
 	/*
 	 * Forwarding database
@@ -425,7 +412,7 @@ struct dsa_switch_ops {
 				const struct switchdev_obj_port_fdb *fdb);
 	int	(*port_fdb_dump)(struct dsa_switch *ds, int port,
 				 struct switchdev_obj_port_fdb *fdb,
-				 int (*cb)(struct switchdev_obj *obj));
+				  switchdev_obj_dump_cb_t *cb);
 
 	/*
 	 * Multicast database
@@ -440,7 +427,7 @@ struct dsa_switch_ops {
 				const struct switchdev_obj_port_mdb *mdb);
 	int	(*port_mdb_dump)(struct dsa_switch *ds, int port,
 				 struct switchdev_obj_port_mdb *mdb,
-				 int (*cb)(struct switchdev_obj *obj));
+				  switchdev_obj_dump_cb_t *cb);
 
 	/*
 	 * RXNFC
@@ -480,23 +467,18 @@ struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev);
 
 struct net_device *dsa_dev_to_net_device(struct device *dev);
 
-static inline bool dsa_uses_tagged_protocol(struct dsa_switch_tree *dst)
-{
-	return dst->rcv != NULL;
-}
-
+/* Keep inline for faster access in hot path */
 static inline bool netdev_uses_dsa(struct net_device *dev)
 {
 #if IS_ENABLED(CONFIG_NET_DSA)
-	if (dev->dsa_ptr != NULL)
-		return dsa_uses_tagged_protocol(dev->dsa_ptr);
+	return dev->dsa_ptr && dev->dsa_ptr->rcv;
 #endif
 	return false;
 }
 
 struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n);
 void dsa_unregister_switch(struct dsa_switch *ds);
-int dsa_register_switch(struct dsa_switch *ds, struct device *dev);
+int dsa_register_switch(struct dsa_switch *ds);
 #ifdef CONFIG_PM_SLEEP
 int dsa_switch_suspend(struct dsa_switch *ds);
 int dsa_switch_resume(struct dsa_switch *ds);
diff --git a/include/net/dst.h b/include/net/dst.h
index 049af33da3b6..1969008783d8 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -31,9 +31,9 @@
 struct sk_buff;
 
 struct dst_entry {
+	struct net_device       *dev;
 	struct rcu_head		rcu_head;
 	struct dst_entry	*child;
-	struct net_device       *dev;
 	struct  dst_ops	        *ops;
 	unsigned long		_metrics;
 	unsigned long           expires;
@@ -107,10 +107,16 @@ struct dst_entry {
 	};
 };
 
+struct dst_metrics {
+	u32		metrics[RTAX_MAX];
+	atomic_t	refcnt;
+};
+extern const struct dst_metrics dst_default_metrics;
+
 u32 *dst_cow_metrics_generic(struct dst_entry *dst, unsigned long old);
-extern const u32 dst_default_metrics[];
 
 #define DST_METRICS_READ_ONLY		0x1UL
+#define DST_METRICS_REFCOUNTED		0x2UL
 #define DST_METRICS_FLAGS		0x3UL
 #define __DST_METRICS_PTR(Y)	\
 	((u32 *)((Y) & ~DST_METRICS_FLAGS))
diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h
index 8d21d448daa9..e2663e900b0a 100644
--- a/include/net/flow_dissector.h
+++ b/include/net/flow_dissector.h
@@ -157,6 +157,24 @@ struct flow_dissector_key_eth_addrs {
 	unsigned char src[ETH_ALEN];
 };
 
+/**
+ * struct flow_dissector_key_tcp:
+ * @flags: flags
+ */
+struct flow_dissector_key_tcp {
+	__be16 flags;
+};
+
+/**
+ * struct flow_dissector_key_ip:
+ * @tos: tos
+ * @ttl: ttl
+ */
+struct flow_dissector_key_ip {
+	__u8	tos;
+	__u8	ttl;
+};
+
 enum flow_dissector_key_id {
 	FLOW_DISSECTOR_KEY_CONTROL, /* struct flow_dissector_key_control */
 	FLOW_DISSECTOR_KEY_BASIC, /* struct flow_dissector_key_basic */
@@ -177,6 +195,8 @@ enum flow_dissector_key_id {
 	FLOW_DISSECTOR_KEY_ENC_CONTROL, /* struct flow_dissector_key_control */
 	FLOW_DISSECTOR_KEY_ENC_PORTS, /* struct flow_dissector_key_ports */
 	FLOW_DISSECTOR_KEY_MPLS, /* struct flow_dissector_key_mpls */
+	FLOW_DISSECTOR_KEY_TCP, /* struct flow_dissector_key_tcp */
+	FLOW_DISSECTOR_KEY_IP, /* struct flow_dissector_key_ip */
 
 	FLOW_DISSECTOR_KEY_MAX,
 };
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 68b88192b00c..c59a098221db 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -128,7 +128,6 @@ static inline int genl_err_attr(struct genl_info *info, int err,
  * @start: start callback for dumps
  * @dumpit: callback for dumpers
  * @done: completion callback for dumps
- * @ops_list: operations list
  */
 struct genl_ops {
 	const struct nla_policy	*policy;
diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index 5894730ec82a..975779d0e7b0 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -92,7 +92,7 @@ struct inet_frags {
 	 */
 	u32			rnd;
 	seqlock_t		rnd_seqlock;
-	int			qsize;
+	unsigned int		qsize;
 
 	unsigned int		(*hashfn)(const struct inet_frag_queue *);
 	bool			(*match)(const struct inet_frag_queue *q,
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index c979c878df1c..aa50e2e6fa2a 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -277,7 +277,8 @@ void fib6_clean_all(struct net *net, int (*func)(struct rt6_info *, void *arg),
 		    void *arg);
 
 int fib6_add(struct fib6_node *root, struct rt6_info *rt,
-	     struct nl_info *info, struct mx6_config *mxc);
+	     struct nl_info *info, struct mx6_config *mxc,
+	     struct netlink_ext_ack *extack);
 int fib6_del(struct rt6_info *rt, struct nl_info *info);
 
 void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info,
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index f5e625f53367..f3da9dd2a8db 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -90,7 +90,7 @@ void ip6_route_cleanup(void);
 
 int ipv6_route_ioctl(struct net *net, unsigned int cmd, void __user *arg);
 
-int ip6_route_add(struct fib6_config *cfg);
+int ip6_route_add(struct fib6_config *cfg, struct netlink_ext_ack *extack);
 int ip6_ins_rt(struct rt6_info *);
 int ip6_del_rt(struct rt6_info *);
 
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 6692c5758b33..3dbfd5e6a347 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -114,11 +114,11 @@ struct fib_info {
 	__be32			fib_prefsrc;
 	u32			fib_tb_id;
 	u32			fib_priority;
-	u32			*fib_metrics;
-#define fib_mtu fib_metrics[RTAX_MTU-1]
-#define fib_window fib_metrics[RTAX_WINDOW-1]
-#define fib_rtt fib_metrics[RTAX_RTT-1]
-#define fib_advmss fib_metrics[RTAX_ADVMSS-1]
+	struct dst_metrics	*fib_metrics;
+#define fib_mtu fib_metrics->metrics[RTAX_MTU-1]
+#define fib_window fib_metrics->metrics[RTAX_WINDOW-1]
+#define fib_rtt fib_metrics->metrics[RTAX_RTT-1]
+#define fib_advmss fib_metrics->metrics[RTAX_ADVMSS-1]
 	int			fib_nhs;
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 	int			fib_weight;
@@ -136,6 +136,7 @@ struct fib_rule;
 
 struct fib_table;
 struct fib_result {
+	__be32		prefix;
 	unsigned char	prefixlen;
 	unsigned char	nh_sel;
 	unsigned char	type;
@@ -263,8 +264,10 @@ struct fib_table {
 
 int fib_table_lookup(struct fib_table *tb, const struct flowi4 *flp,
 		     struct fib_result *res, int fib_flags);
-int fib_table_insert(struct net *, struct fib_table *, struct fib_config *);
-int fib_table_delete(struct net *, struct fib_table *, struct fib_config *);
+int fib_table_insert(struct net *, struct fib_table *, struct fib_config *,
+		     struct netlink_ext_ack *extack);
+int fib_table_delete(struct net *, struct fib_table *, struct fib_config *,
+		     struct netlink_ext_ack *extack);
 int fib_table_dump(struct fib_table *table, struct sk_buff *skb,
 		   struct netlink_callback *cb);
 int fib_table_flush(struct net *net, struct fib_table *table);
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index dbf0abba33b8..3e505bbff8ca 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -1007,6 +1007,7 @@ int inet6_hash_connect(struct inet_timewait_death_row *death_row,
  */
 extern const struct proto_ops inet6_stream_ops;
 extern const struct proto_ops inet6_dgram_ops;
+extern const struct proto_ops inet6_sockraw_ops;
 
 struct group_source_req;
 struct group_filter;
diff --git a/include/net/lwtunnel.h b/include/net/lwtunnel.h
index ebfe237aad7e..7c26863b8cf4 100644
--- a/include/net/lwtunnel.h
+++ b/include/net/lwtunnel.h
@@ -35,7 +35,8 @@ struct lwtunnel_state {
 struct lwtunnel_encap_ops {
 	int (*build_state)(struct nlattr *encap,
 			   unsigned int family, const void *cfg,
-			   struct lwtunnel_state **ts);
+			   struct lwtunnel_state **ts,
+			   struct netlink_ext_ack *extack);
 	void (*destroy_state)(struct lwtunnel_state *lws);
 	int (*output)(struct net *net, struct sock *sk, struct sk_buff *skb);
 	int (*input)(struct sk_buff *skb);
@@ -107,12 +108,15 @@ int lwtunnel_encap_add_ops(const struct lwtunnel_encap_ops *op,
 			   unsigned int num);
 int lwtunnel_encap_del_ops(const struct lwtunnel_encap_ops *op,
 			   unsigned int num);
-int lwtunnel_valid_encap_type(u16 encap_type);
-int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int len);
+int lwtunnel_valid_encap_type(u16 encap_type,
+			      struct netlink_ext_ack *extack);
+int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int len,
+				   struct netlink_ext_ack *extack);
 int lwtunnel_build_state(u16 encap_type,
 			 struct nlattr *encap,
 			 unsigned int family, const void *cfg,
-			 struct lwtunnel_state **lws);
+			 struct lwtunnel_state **lws,
+			 struct netlink_ext_ack *extack);
 int lwtunnel_fill_encap(struct sk_buff *skb,
 			struct lwtunnel_state *lwtstate);
 int lwtunnel_get_encap_size(struct lwtunnel_state *lwtstate);
@@ -172,11 +176,14 @@ static inline int lwtunnel_encap_del_ops(const struct lwtunnel_encap_ops *op,
 	return -EOPNOTSUPP;
 }
 
-static inline int lwtunnel_valid_encap_type(u16 encap_type)
+static inline int lwtunnel_valid_encap_type(u16 encap_type,
+					    struct netlink_ext_ack *extack)
 {
+	NL_SET_ERR_MSG(extack, "CONFIG_LWTUNNEL is not enabled in this kernel");
 	return -EOPNOTSUPP;
 }
-static inline int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int len)
+static inline int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int len,
+						 struct netlink_ext_ack *extack)
 {
 	/* return 0 since we are not walking attr looking for
 	 * RTA_ENCAP_TYPE attribute on nexthops.
@@ -187,7 +194,8 @@ static inline int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int len)
 static inline int lwtunnel_build_state(u16 encap_type,
 				       struct nlattr *encap,
 				       unsigned int family, const void *cfg,
-				       struct lwtunnel_state **lws)
+				       struct lwtunnel_state **lws,
+				       struct netlink_ext_ack *extack)
 {
 	return -EOPNOTSUPP;
 }
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index e4dd3a214034..639b67564a7d 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -317,6 +317,7 @@ int __neigh_event_send(struct neighbour *neigh, struct sk_buff *skb);
 int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new, u32 flags,
 		 u32 nlmsg_pid);
 void __neigh_set_probe_once(struct neighbour *neigh);
+bool neigh_remove_one(struct neighbour *ndel, struct neigh_table *tbl);
 void neigh_changeaddr(struct neigh_table *tbl, struct net_device *dev);
 int neigh_ifdown(struct neigh_table *tbl, struct net_device *dev);
 int neigh_resolve_output(struct neighbour *neigh, struct sk_buff *skb);
diff --git a/include/net/netfilter/nf_conntrack_helper.h b/include/net/netfilter/nf_conntrack_helper.h
index e04fa7691e5d..c519bb5b5bb8 100644
--- a/include/net/netfilter/nf_conntrack_helper.h
+++ b/include/net/netfilter/nf_conntrack_helper.h
@@ -9,6 +9,7 @@
 
 #ifndef _NF_CONNTRACK_HELPER_H
 #define _NF_CONNTRACK_HELPER_H
+#include <linux/refcount.h>
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_extend.h>
 #include <net/netfilter/nf_conntrack_expect.h>
@@ -26,6 +27,7 @@ struct nf_conntrack_helper {
 	struct hlist_node hnode;	/* Internal use. */
 
 	char name[NF_CT_HELPER_NAME_LEN]; /* name of the module */
+	refcount_t refcnt;
 	struct module *me;		/* pointer to self */
 	const struct nf_conntrack_expect_policy *expect_policy;
 
@@ -79,6 +81,8 @@ struct nf_conntrack_helper *__nf_conntrack_helper_find(const char *name,
 struct nf_conntrack_helper *nf_conntrack_helper_try_module_get(const char *name,
 							       u16 l3num,
 							       u8 protonum);
+void nf_conntrack_helper_put(struct nf_conntrack_helper *helper);
+
 void nf_ct_helper_init(struct nf_conntrack_helper *helper,
 		       u16 l3num, u16 protonum, const char *name,
 		       u16 default_port, u16 spec_port, u32 id,
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 028faec8fc27..8a8bab8d7b15 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -176,7 +176,7 @@ struct nft_data_desc {
 int nft_data_init(const struct nft_ctx *ctx,
 		  struct nft_data *data, unsigned int size,
 		  struct nft_data_desc *desc, const struct nlattr *nla);
-void nft_data_uninit(const struct nft_data *data, enum nft_data_types type);
+void nft_data_release(const struct nft_data *data, enum nft_data_types type);
 int nft_data_dump(struct sk_buff *skb, int attr, const struct nft_data *data,
 		  enum nft_data_types type, unsigned int len);
 
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 269fd78bb0ae..537d0a0ad4c4 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -18,11 +18,32 @@ int register_tcf_proto_ops(struct tcf_proto_ops *ops);
 int unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
 
 #ifdef CONFIG_NET_CLS
-void tcf_destroy_chain(struct tcf_proto __rcu **fl);
+struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index,
+				bool create);
+void tcf_chain_put(struct tcf_chain *chain);
+int tcf_block_get(struct tcf_block **p_block,
+		  struct tcf_proto __rcu **p_filter_chain);
+void tcf_block_put(struct tcf_block *block);
+int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
+		 struct tcf_result *res, bool compat_mode);
+
 #else
-static inline void tcf_destroy_chain(struct tcf_proto __rcu **fl)
+static inline
+int tcf_block_get(struct tcf_block **p_block,
+		  struct tcf_proto __rcu **p_filter_chain)
+{
+	return 0;
+}
+
+static inline void tcf_block_put(struct tcf_block *block)
 {
 }
+
+static inline int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
+			       struct tcf_result *res, bool compat_mode)
+{
+	return TC_ACT_UNSPEC;
+}
 #endif
 
 static inline unsigned long
@@ -136,6 +157,25 @@ static inline void tcf_exts_to_list(const struct tcf_exts *exts,
 #endif
 }
 
+static inline void
+tcf_exts_stats_update(const struct tcf_exts *exts,
+		      u64 bytes, u64 packets, u64 lastuse)
+{
+#ifdef CONFIG_NET_CLS_ACT
+	int i;
+
+	preempt_disable();
+
+	for (i = 0; i < exts->nr_actions; i++) {
+		struct tc_action *a = exts->actions[i];
+
+		tcf_action_stats_update(a, bytes, packets, lastuse);
+	}
+
+	preempt_enable();
+#endif
+}
+
 /**
  * tcf_exts_exec - execute tc filter extensions
  * @skb: socket buffer
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index bec46f63f10c..2579c209ea51 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -113,9 +113,6 @@ static inline void qdisc_run(struct Qdisc *q)
 		__qdisc_run(q);
 }
 
-int tc_classify(struct sk_buff *skb, const struct tcf_proto *tp,
-		struct tcf_result *res, bool compat_mode);
-
 static inline __be16 tc_skb_protocol(const struct sk_buff *skb)
 {
 	/* We need to take extra care in case the skb came via
diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index a12a5d25b27e..53ced67c4ae9 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -29,7 +29,7 @@ struct proto;
 
 struct request_sock_ops {
 	int		family;
-	int		obj_size;
+	unsigned int	obj_size;
 	struct kmem_cache	*slab;
 	char		*slab_name;
 	int		(*rtx_syn_ack)(const struct sock *sk,
diff --git a/include/net/route.h b/include/net/route.h
index 2cc0e14c6359..08e689f23365 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -113,13 +113,16 @@ struct in_device;
 int ip_rt_init(void);
 void rt_cache_flush(struct net *net);
 void rt_flush_dev(struct net_device *dev);
-struct rtable *__ip_route_output_key_hash(struct net *net, struct flowi4 *flp,
-					  const struct sk_buff *skb);
+struct rtable *ip_route_output_key_hash(struct net *net, struct flowi4 *flp,
+					const struct sk_buff *skb);
+struct rtable *ip_route_output_key_hash_rcu(struct net *net, struct flowi4 *flp,
+					    struct fib_result *res,
+					    const struct sk_buff *skb);
 
 static inline struct rtable *__ip_route_output_key(struct net *net,
 						   struct flowi4 *flp)
 {
-	return __ip_route_output_key_hash(net, flp, NULL);
+	return ip_route_output_key_hash(net, flp, NULL);
 }
 
 struct rtable *ip_route_output_flow(struct net *, struct flowi4 *flp,
@@ -175,6 +178,9 @@ static inline struct rtable *ip_route_output_gre(struct net *net, struct flowi4
 
 int ip_route_input_noref(struct sk_buff *skb, __be32 dst, __be32 src,
 			 u8 tos, struct net_device *devin);
+int ip_route_input_rcu(struct sk_buff *skb, __be32 dst, __be32 src,
+		       u8 tos, struct net_device *devin,
+		       struct fib_result *res);
 
 static inline int ip_route_input(struct sk_buff *skb, __be32 dst, __be32 src,
 				 u8 tos, struct net_device *devin)
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 22e52093bfda..368850194c94 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -8,6 +8,7 @@
 #include <linux/pkt_cls.h>
 #include <linux/percpu.h>
 #include <linux/dynamic_queue_limits.h>
+#include <linux/list.h>
 #include <net/gen_stats.h>
 #include <net/rtnetlink.h>
 
@@ -153,7 +154,7 @@ struct Qdisc_class_ops {
 	void			(*walk)(struct Qdisc *, struct qdisc_walker * arg);
 
 	/* Filter manipulation */
-	struct tcf_proto __rcu ** (*tcf_chain)(struct Qdisc *, unsigned long);
+	struct tcf_block *	(*tcf_block)(struct Qdisc *, unsigned long);
 	bool			(*tcf_cl_offload)(u32 classid);
 	unsigned long		(*bind_tcf)(struct Qdisc *, unsigned long,
 					u32 classid);
@@ -192,8 +193,13 @@ struct Qdisc_ops {
 
 
 struct tcf_result {
-	unsigned long	class;
-	u32		classid;
+	union {
+		struct {
+			unsigned long	class;
+			u32		classid;
+		};
+		const struct tcf_proto *goto_tp;
+	};
 };
 
 struct tcf_proto_ops {
@@ -236,6 +242,7 @@ struct tcf_proto {
 	struct Qdisc		*q;
 	void			*data;
 	const struct tcf_proto_ops	*ops;
+	struct tcf_chain	*chain;
 	struct rcu_head		rcu;
 };
 
@@ -247,6 +254,19 @@ struct qdisc_skb_cb {
 	unsigned char		data[QDISC_CB_PRIV_LEN];
 };
 
+struct tcf_chain {
+	struct tcf_proto __rcu *filter_chain;
+	struct tcf_proto __rcu **p_filter_chain;
+	struct list_head list;
+	struct tcf_block *block;
+	u32 index; /* chain index */
+	unsigned int refcnt;
+};
+
+struct tcf_block {
+	struct list_head chain_list;
+};
+
 static inline void qdisc_cb_private_validate(const struct sk_buff *skb, int sz)
 {
 	struct qdisc_skb_cb *qcb;
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index a8b38e123f97..5051317162df 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -377,10 +377,11 @@ typedef struct sctp_sender_hb_info {
 	__u64 hb_nonce;
 } sctp_sender_hb_info_t;
 
-int sctp_stream_new(struct sctp_association *asoc, gfp_t gfp);
-int sctp_stream_init(struct sctp_association *asoc, gfp_t gfp);
+int sctp_stream_init(struct sctp_stream *stream, __u16 outcnt, __u16 incnt,
+		     gfp_t gfp);
 void sctp_stream_free(struct sctp_stream *stream);
 void sctp_stream_clear(struct sctp_stream *stream);
+void sctp_stream_update(struct sctp_stream *stream, struct sctp_stream *new);
 
 /* What is the current SSN number for this stream? */
 #define sctp_ssn_peek(stream, type, sid) \
@@ -1750,7 +1751,7 @@ struct sctp_association {
 	__u32 default_rcv_context;
 
 	/* Stream arrays */
-	struct sctp_stream *stream;
+	struct sctp_stream stream;
 
 	/* All outbound chunks go through this structure.  */
 	struct sctp_outq outqueue;
diff --git a/include/net/tc_act/tc_csum.h b/include/net/tc_act/tc_csum.h
index f31fb6331a53..3248beaf16b0 100644
--- a/include/net/tc_act/tc_csum.h
+++ b/include/net/tc_act/tc_csum.h
@@ -3,6 +3,7 @@
 
 #include <linux/types.h>
 #include <net/act_api.h>
+#include <linux/tc_act/tc_csum.h>
 
 struct tcf_csum {
 	struct tc_action common;
@@ -11,4 +12,18 @@ struct tcf_csum {
 };
 #define to_tcf_csum(a) ((struct tcf_csum *)a)
 
+static inline bool is_tcf_csum(const struct tc_action *a)
+{
+#ifdef CONFIG_NET_CLS_ACT
+	if (a->ops && a->ops->type == TCA_ACT_CSUM)
+		return true;
+#endif
+	return false;
+}
+
+static inline u32 tcf_csum_update_flags(const struct tc_action *a)
+{
+	return to_tcf_csum(a)->update_flags;
+}
+
 #endif /* __NET_TC_CSUM_H */
diff --git a/include/net/tc_act/tc_gact.h b/include/net/tc_act/tc_gact.h
index b6f173910226..d576374c4d6f 100644
--- a/include/net/tc_act/tc_gact.h
+++ b/include/net/tc_act/tc_gact.h
@@ -15,7 +15,7 @@ struct tcf_gact {
 };
 #define to_gact(a) ((struct tcf_gact *)a)
 
-static inline bool is_tcf_gact_shot(const struct tc_action *a)
+static inline bool __is_tcf_gact_act(const struct tc_action *a, int act)
 {
 #ifdef CONFIG_NET_CLS_ACT
 	struct tcf_gact *gact;
@@ -24,10 +24,21 @@ static inline bool is_tcf_gact_shot(const struct tc_action *a)
 		return false;
 
 	gact = to_gact(a);
-	if (gact->tcf_action == TC_ACT_SHOT)
+	if (gact->tcf_action == act)
 		return true;
 
 #endif
 	return false;
 }
+
+static inline bool is_tcf_gact_shot(const struct tc_action *a)
+{
+	return __is_tcf_gact_act(a, TC_ACT_SHOT);
+}
+
+static inline bool is_tcf_gact_trap(const struct tc_action *a)
+{
+	return __is_tcf_gact_act(a, TC_ACT_TRAP);
+}
+
 #endif /* __NET_TC_GACT_H */
diff --git a/include/net/tcp.h b/include/net/tcp.h
index b4dc93dae98c..28b577a35786 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -519,7 +519,7 @@ static inline u32 tcp_cookie_time(void)
 u32 __cookie_v4_init_sequence(const struct iphdr *iph, const struct tcphdr *th,
 			      u16 *mssp);
 __u32 cookie_v4_init_sequence(const struct sk_buff *skb, __u16 *mss);
-__u32 cookie_init_timestamp(struct request_sock *req);
+u64 cookie_init_timestamp(struct request_sock *req);
 bool cookie_timestamp_decode(struct tcp_options_received *opt);
 bool cookie_ecn_ok(const struct tcp_options_received *opt,
 		   const struct net *net, const struct dst_entry *dst);
@@ -700,17 +700,61 @@ u32 __tcp_select_window(struct sock *sk);
 
 void tcp_send_window_probe(struct sock *sk);
 
-/* TCP timestamps are only 32-bits, this causes a slight
- * complication on 64-bit systems since we store a snapshot
- * of jiffies in the buffer control blocks below.  We decided
- * to use only the low 32-bits of jiffies and hide the ugly
- * casts with the following macro.
+/* TCP uses 32bit jiffies to save some space.
+ * Note that this is different from tcp_time_stamp, which
+ * historically has been the same until linux-4.13.
  */
-#define tcp_time_stamp		((__u32)(jiffies))
+#define tcp_jiffies32 ((u32)jiffies)
+
+/*
+ * Deliver a 32bit value for TCP timestamp option (RFC 7323)
+ * It is no longer tied to jiffies, but to 1 ms clock.
+ * Note: double check if you want to use tcp_jiffies32 instead of this.
+ */
+#define TCP_TS_HZ	1000
+
+static inline u64 tcp_clock_ns(void)
+{
+	return local_clock();
+}
+
+static inline u64 tcp_clock_us(void)
+{
+	return div_u64(tcp_clock_ns(), NSEC_PER_USEC);
+}
+
+/* This should only be used in contexts where tp->tcp_mstamp is up to date */
+static inline u32 tcp_time_stamp(const struct tcp_sock *tp)
+{
+	return div_u64(tp->tcp_mstamp, USEC_PER_SEC / TCP_TS_HZ);
+}
+
+/* Could use tcp_clock_us() / 1000, but this version uses a single divide */
+static inline u32 tcp_time_stamp_raw(void)
+{
+	return div_u64(tcp_clock_ns(), NSEC_PER_SEC / TCP_TS_HZ);
+}
+
+
+/* Refresh 1us clock of a TCP socket,
+ * ensuring monotically increasing values.
+ */
+static inline void tcp_mstamp_refresh(struct tcp_sock *tp)
+{
+	u64 val = tcp_clock_us();
+
+	if (val > tp->tcp_mstamp)
+		tp->tcp_mstamp = val;
+}
+
+static inline u32 tcp_stamp_us_delta(u64 t1, u64 t0)
+{
+	return max_t(s64, t1 - t0, 0);
+}
 
 static inline u32 tcp_skb_timestamp(const struct sk_buff *skb)
 {
-	return skb->skb_mstamp.stamp_jiffies;
+	return div_u64(skb->skb_mstamp, USEC_PER_SEC / TCP_TS_HZ);
 }
 
 
@@ -775,9 +819,9 @@ struct tcp_skb_cb {
 			/* pkts S/ACKed so far upon tx of skb, incl retrans: */
 			__u32 delivered;
 			/* start of send pipeline phase */
-			struct skb_mstamp first_tx_mstamp;
+			u64 first_tx_mstamp;
 			/* when we reached the "delivered" count */
-			struct skb_mstamp delivered_mstamp;
+			u64 delivered_mstamp;
 		} tx;   /* only used for outgoing skbs */
 		union {
 			struct inet_skb_parm	h4;
@@ -893,7 +937,7 @@ struct ack_sample {
  * A sample is invalid if "delivered" or "interval_us" is negative.
  */
 struct rate_sample {
-	struct	skb_mstamp prior_mstamp; /* starting timestamp for interval */
+	u64  prior_mstamp; /* starting timestamp for interval */
 	u32  prior_delivered;	/* tp->delivered at "prior_mstamp" */
 	s32  delivered;		/* number of packets delivered over interval */
 	long interval_us;	/* time for tp->delivered to incr "delivered" */
@@ -925,7 +969,7 @@ struct tcp_congestion_ops {
 	void (*cwnd_event)(struct sock *sk, enum tcp_ca_event ev);
 	/* call when ack arrives (optional) */
 	void (*in_ack_event)(struct sock *sk, u32 flags);
-	/* new value of cwnd after loss (optional) */
+	/* new value of cwnd after loss (required) */
 	u32  (*undo_cwnd)(struct sock *sk);
 	/* hook for packet ack accounting (optional) */
 	void (*pkts_acked)(struct sock *sk, const struct ack_sample *sample);
@@ -1242,7 +1286,7 @@ static inline void tcp_slow_start_after_idle_check(struct sock *sk)
 	if (!sysctl_tcp_slow_start_after_idle || tp->packets_out ||
 	    ca_ops->cong_control)
 		return;
-	delta = tcp_time_stamp - tp->lsndtime;
+	delta = tcp_jiffies32 - tp->lsndtime;
 	if (delta > inet_csk(sk)->icsk_rto)
 		tcp_cwnd_restart(sk, delta);
 }
@@ -1304,8 +1348,8 @@ static inline u32 keepalive_time_elapsed(const struct tcp_sock *tp)
 {
 	const struct inet_connection_sock *icsk = &tp->inet_conn;
 
-	return min_t(u32, tcp_time_stamp - icsk->icsk_ack.lrcvtime,
-			  tcp_time_stamp - tp->rcv_tstamp);
+	return min_t(u32, tcp_jiffies32 - icsk->icsk_ack.lrcvtime,
+			  tcp_jiffies32 - tp->rcv_tstamp);
 }
 
 static inline int tcp_fin_time(const struct sock *sk)
@@ -1859,7 +1903,7 @@ void tcp_init(void);
 /* tcp_recovery.c */
 extern void tcp_rack_mark_lost(struct sock *sk);
 extern void tcp_rack_advance(struct tcp_sock *tp, u8 sacked, u32 end_seq,
-			     const struct skb_mstamp *xmit_time);
+			     u64 xmit_time);
 extern void tcp_rack_reo_timeout(struct sock *sk);
 
 /*
diff --git a/include/net/x25.h b/include/net/x25.h
index c383aa4edbf0..6d30a01d281d 100644
--- a/include/net/x25.h
+++ b/include/net/x25.h
@@ -298,10 +298,10 @@ void x25_check_rbuf(struct sock *);
 
 /* sysctl_net_x25.c */
 #ifdef CONFIG_SYSCTL
-void x25_register_sysctl(void);
+int x25_register_sysctl(void);
 void x25_unregister_sysctl(void);
 #else
-static inline void x25_register_sysctl(void) {};
+static inline int x25_register_sysctl(void) { return 0; };
 static inline void x25_unregister_sysctl(void) {};
 #endif /* CONFIG_SYSCTL */
 
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 6793a30c66b1..7e7e2b0d2915 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -979,10 +979,6 @@ struct xfrm_dst {
 	struct flow_cache_object flo;
 	struct xfrm_policy *pols[XFRM_POLICY_TYPE_MAX];
 	int num_pols, num_xfrms;
-#ifdef CONFIG_XFRM_SUB_POLICY
-	struct flowi *origin;
-	struct xfrm_selector *partner;
-#endif
 	u32 xfrm_genid;
 	u32 policy_genid;
 	u32 route_mtu_cached;
@@ -998,12 +994,6 @@ static inline void xfrm_dst_destroy(struct xfrm_dst *xdst)
 	dst_release(xdst->route);
 	if (likely(xdst->u.dst.xfrm))
 		xfrm_state_put(xdst->u.dst.xfrm);
-#ifdef CONFIG_XFRM_SUB_POLICY
-	kfree(xdst->origin);
-	xdst->origin = NULL;
-	kfree(xdst->partner);
-	xdst->partner = NULL;
-#endif
 }
 #endif