Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Minor conflict in net/core/rtnetlink.c, David Ahern's bug fix in 'net'
overlapped the renaming of a netlink attribute in net-next.

Signed-off-by: David S. Miller <davem@davemloft.net>

56 files changed, 468 insertions, 323 deletions

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 3bdc8f3ca259..ccce954f8146 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2434,9 +2434,8 @@ static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data,
 	/* LE address type */
 	addr_type = le_addr_type(cp->addr.type);
 
-	hci_remove_irk(hdev, &cp->addr.bdaddr, addr_type);
-
-	err = hci_remove_ltk(hdev, &cp->addr.bdaddr, addr_type);
+	/* Abort any ongoing SMP pairing. Removes ltk and irk if they exist. */
+	err = smp_cancel_and_remove_pairing(hdev, &cp->addr.bdaddr, addr_type);
 	if (err < 0) {
 		err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
 					MGMT_STATUS_NOT_PAIRED, &rp,
@@ -2450,8 +2449,6 @@ static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto done;
 	}
 
-	/* Abort any ongoing SMP pairing */
-	smp_cancel_pairing(conn);
 
 	/* Defer clearing up the connection parameters until closing to
 	 * give a chance of keeping them if a repairing happens.
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 090670fe385f..a1c1b7e8a45c 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -2419,30 +2419,51 @@ unlock:
 	return ret;
 }
 
-void smp_cancel_pairing(struct hci_conn *hcon)
+int smp_cancel_and_remove_pairing(struct hci_dev *hdev, bdaddr_t *bdaddr,
+				  u8 addr_type)
 {
-	struct l2cap_conn *conn = hcon->l2cap_data;
+	struct hci_conn *hcon;
+	struct l2cap_conn *conn;
 	struct l2cap_chan *chan;
 	struct smp_chan *smp;
+	int err;
+
+	err = hci_remove_ltk(hdev, bdaddr, addr_type);
+	hci_remove_irk(hdev, bdaddr, addr_type);
+
+	hcon = hci_conn_hash_lookup_le(hdev, bdaddr, addr_type);
+	if (!hcon)
+		goto done;
 
+	conn = hcon->l2cap_data;
 	if (!conn)
-		return;
+		goto done;
 
 	chan = conn->smp;
 	if (!chan)
-		return;
+		goto done;
 
 	l2cap_chan_lock(chan);
 
 	smp = chan->data;
 	if (smp) {
+		/* Set keys to NULL to make sure smp_failure() does not try to
+		 * remove and free already invalidated rcu list entries. */
+		smp->ltk = NULL;
+		smp->slave_ltk = NULL;
+		smp->remote_irk = NULL;
+
 		if (test_bit(SMP_FLAG_COMPLETE, &smp->flags))
 			smp_failure(conn, 0);
 		else
 			smp_failure(conn, SMP_UNSPECIFIED);
+		err = 0;
 	}
 
 	l2cap_chan_unlock(chan);
+
+done:
+	return err;
 }
 
 static int smp_cmd_encrypt_info(struct l2cap_conn *conn, struct sk_buff *skb)
diff --git a/net/bluetooth/smp.h b/net/bluetooth/smp.h
index 0ff6247eaa6c..121edadd5f8d 100644
--- a/net/bluetooth/smp.h
+++ b/net/bluetooth/smp.h
@@ -181,7 +181,8 @@ enum smp_key_pref {
 };
 
 /* SMP Commands */
-void smp_cancel_pairing(struct hci_conn *hcon);
+int smp_cancel_and_remove_pairing(struct hci_dev *hdev, bdaddr_t *bdaddr,
+				  u8 addr_type);
 bool smp_sufficient_security(struct hci_conn *hcon, u8 sec_level,
 			     enum smp_key_pref key_pref);
 int smp_conn_security(struct hci_conn *hcon, __u8 sec_level);
diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c
index e0a3b038d052..b1b5e8516724 100644
--- a/net/bridge/br_netfilter_hooks.c
+++ b/net/bridge/br_netfilter_hooks.c
@@ -836,7 +836,8 @@ static unsigned int ip_sabotage_in(void *priv,
 				   struct sk_buff *skb,
 				   const struct nf_hook_state *state)
 {
-	if (skb->nf_bridge && !skb->nf_bridge->in_prerouting) {
+	if (skb->nf_bridge && !skb->nf_bridge->in_prerouting &&
+	    !netif_is_l3_master(skb->dev)) {
 		state->okfn(state->net, state->sk, skb);
 		return NF_STOLEN;
 	}
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 96afc55aa61e..3144ef2bf136 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1395,6 +1395,7 @@ static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
 static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
 {
 	struct ethtool_wolinfo wol;
+	int ret;
 
 	if (!dev->ethtool_ops->set_wol)
 		return -EOPNOTSUPP;
@@ -1402,7 +1403,13 @@ static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
 	if (copy_from_user(&wol, useraddr, sizeof(wol)))
 		return -EFAULT;
 
-	return dev->ethtool_ops->set_wol(dev, &wol);
+	ret = dev->ethtool_ops->set_wol(dev, &wol);
+	if (ret)
+		return ret;
+
+	dev->wol_enabled = !!wol.wolopts;
+
+	return 0;
 }
 
 static int ethtool_get_eee(struct net_device *dev, char __user *useraddr)
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 3219a2932463..de1d1ba92f2d 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -135,27 +135,9 @@ static void queue_process(struct work_struct *work)
 	}
 }
 
-/*
- * Check whether delayed processing was scheduled for our NIC. If so,
- * we attempt to grab the poll lock and use ->poll() to pump the card.
- * If this fails, either we've recursed in ->poll() or it's already
- * running on another CPU.
- *
- * Note: we don't mask interrupts with this lock because we're using
- * trylock here and interrupts are already disabled in the softirq
- * case. Further, we test the poll_owner to avoid recursion on UP
- * systems where the lock doesn't exist.
- */
 static void poll_one_napi(struct napi_struct *napi)
 {
-	int work = 0;
-
-	/* net_rx_action's ->poll() invocations and our's are
-	 * synchronized by this test which is only made while
-	 * holding the napi->poll_lock.
-	 */
-	if (!test_bit(NAPI_STATE_SCHED, &napi->state))
-		return;
+	int work;
 
 	/* If we set this bit but see that it has already been set,
 	 * that indicates that napi has been disabled and we need
@@ -330,6 +312,7 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb,
 	/* It is up to the caller to keep npinfo alive. */
 	struct netpoll_info *npinfo;
 
+	rcu_read_lock_bh();
 	lockdep_assert_irqs_disabled();
 
 	npinfo = rcu_dereference_bh(np->dev->npinfo);
@@ -374,6 +357,7 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb,
 		skb_queue_tail(&npinfo->txq, skb);
 		schedule_delayed_work(&npinfo->tx_work,0);
 	}
+	rcu_read_unlock_bh();
 }
 EXPORT_SYMBOL(netpoll_send_skb_on_dev);
 
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 35162e1b06ad..57bf96d73e3b 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1913,10 +1913,8 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
 		if (tb[IFLA_TARGET_NETNSID]) {
 			netnsid = nla_get_s32(tb[IFLA_TARGET_NETNSID]);
 			tgt_net = rtnl_get_net_ns_capable(skb->sk, netnsid);
-			if (IS_ERR(tgt_net)) {
-				tgt_net = net;
-				netnsid = -1;
-			}
+			if (IS_ERR(tgt_net))
+				return PTR_ERR(tgt_net);
 		}
 
 		if (tb[IFLA_EXT_MASK])
@@ -2852,6 +2850,12 @@ struct net_device *rtnl_create_link(struct net *net,
 	else if (ops->get_num_rx_queues)
 		num_rx_queues = ops->get_num_rx_queues();
 
+	if (num_tx_queues < 1 || num_tx_queues > 4096)
+		return ERR_PTR(-EINVAL);
+
+	if (num_rx_queues < 1 || num_rx_queues > 4096)
+		return ERR_PTR(-EINVAL);
+
 	dev = alloc_netdev_mqs(ops->priv_size, ifname, name_assign_type,
 			       ops->setup, num_tx_queues, num_rx_queues);
 	if (!dev)
diff --git a/net/dccp/input.c b/net/dccp/input.c
index d28d46bff6ab..85d6c879383d 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -606,11 +606,13 @@ int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 	if (sk->sk_state == DCCP_LISTEN) {
 		if (dh->dccph_type == DCCP_PKT_REQUEST) {
 			/* It is possible that we process SYN packets from backlog,
-			 * so we need to make sure to disable BH right there.
+			 * so we need to make sure to disable BH and RCU right there.
 			 */
+			rcu_read_lock();
 			local_bh_disable();
 			acceptable = inet_csk(sk)->icsk_af_ops->conn_request(sk, skb) >= 0;
 			local_bh_enable();
+			rcu_read_unlock();
 			if (!acceptable)
 				return 1;
 			consume_skb(skb);
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index b08feb219b44..8e08cea6f178 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -493,9 +493,11 @@ static int dccp_v4_send_response(const struct sock *sk, struct request_sock *req
 
 		dh->dccph_checksum = dccp_v4_csum_finish(skb, ireq->ir_loc_addr,
 							      ireq->ir_rmt_addr);
+		rcu_read_lock();
 		err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
 					    ireq->ir_rmt_addr,
-					    ireq_opt_deref(ireq));
+					    rcu_dereference(ireq->ireq_opt));
+		rcu_read_unlock();
 		err = net_xmit_eval(err);
 	}
 
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index dfd5009f96ef..15e7f7915a21 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -544,7 +544,8 @@ struct dst_entry *inet_csk_route_req(const struct sock *sk,
 	struct ip_options_rcu *opt;
 	struct rtable *rt;
 
-	opt = ireq_opt_deref(ireq);
+	rcu_read_lock();
+	opt = rcu_dereference(ireq->ireq_opt);
 
 	flowi4_init_output(fl4, ireq->ir_iif, ireq->ir_mark,
 			   RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
@@ -558,11 +559,13 @@ struct dst_entry *inet_csk_route_req(const struct sock *sk,
 		goto no_route;
 	if (opt && opt->opt.is_strictroute && rt->rt_uses_gateway)
 		goto route_err;
+	rcu_read_unlock();
 	return &rt->dst;
 
 route_err:
 	ip_rt_put(rt);
 no_route:
+	rcu_read_unlock();
 	__IP_INC_STATS(net, IPSTATS_MIB_OUTNOROUTES);
 	return NULL;
 }
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index c0fe5ad996f2..26c36cccabdc 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -149,7 +149,6 @@ static void ip_cmsg_recv_security(struct msghdr *msg, struct sk_buff *skb)
 static void ip_cmsg_recv_dstaddr(struct msghdr *msg, struct sk_buff *skb)
 {
 	struct sockaddr_in sin;
-	const struct iphdr *iph = ip_hdr(skb);
 	__be16 *ports;
 	int end;
 
@@ -164,7 +163,7 @@ static void ip_cmsg_recv_dstaddr(struct msghdr *msg, struct sk_buff *skb)
 	ports = (__be16 *)skb_transport_header(skb);
 
 	sin.sin_family = AF_INET;
-	sin.sin_addr.s_addr = iph->daddr;
+	sin.sin_addr.s_addr = ip_hdr(skb)->daddr;
 	sin.sin_port = ports[1];
 	memset(sin.sin_zero, 0, sizeof(sin.sin_zero));
 
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index b92f422f2fa8..891ed2f91467 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -48,6 +48,7 @@ static int tcp_syn_retries_max = MAX_TCP_SYNCNT;
 static int ip_ping_group_range_min[] = { 0, 0 };
 static int ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX };
 static int comp_sack_nr_max = 255;
+static u32 u32_max_div_HZ = UINT_MAX / HZ;
 
 /* obsolete */
 static int sysctl_tcp_low_latency __read_mostly;
@@ -745,9 +746,10 @@ static struct ctl_table ipv4_net_table[] = {
 	{
 		.procname	= "tcp_probe_interval",
 		.data		= &init_net.ipv4.sysctl_tcp_probe_interval,
-		.maxlen		= sizeof(int),
+		.maxlen		= sizeof(u32),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_douintvec_minmax,
+		.extra2		= &u32_max_div_HZ,
 	},
 	{
 		.procname	= "igmp_link_local_mcast_reports",
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index bf1aac315490..188980c58f87 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -6002,11 +6002,13 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb)
 			if (th->fin)
 				goto discard;
 			/* It is possible that we process SYN packets from backlog,
-			 * so we need to make sure to disable BH right there.
+			 * so we need to make sure to disable BH and RCU right there.
 			 */
+			rcu_read_lock();
 			local_bh_disable();
 			acceptable = icsk->icsk_af_ops->conn_request(sk, skb) >= 0;
 			local_bh_enable();
+			rcu_read_unlock();
 
 			if (!acceptable)
 				return 1;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 1f2496e8620d..de47038afdf0 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -943,9 +943,11 @@ static int tcp_v4_send_synack(const struct sock *sk, struct dst_entry *dst,
 	if (skb) {
 		__tcp_v4_send_check(skb, ireq->ir_loc_addr, ireq->ir_rmt_addr);
 
+		rcu_read_lock();
 		err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
 					    ireq->ir_rmt_addr,
-					    ireq_opt_deref(ireq));
+					    rcu_dereference(ireq->ireq_opt));
+		rcu_read_unlock();
 		err = net_xmit_eval(err);
 	}
 
diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c
index bcfc00e88756..f8de2482a529 100644
--- a/net/ipv4/xfrm4_input.c
+++ b/net/ipv4/xfrm4_input.c
@@ -67,6 +67,7 @@ int xfrm4_transport_finish(struct sk_buff *skb, int async)
 
 	if (xo && (xo->flags & XFRM_GRO)) {
 		skb_mac_header_rebuild(skb);
+		skb_reset_transport_header(skb);
 		return 0;
 	}
 
diff --git a/net/ipv4/xfrm4_mode_transport.c b/net/ipv4/xfrm4_mode_transport.c
index 3d36644890bb..1ad2c2c4e250 100644
--- a/net/ipv4/xfrm4_mode_transport.c
+++ b/net/ipv4/xfrm4_mode_transport.c
@@ -46,7 +46,6 @@ static int xfrm4_transport_output(struct xfrm_state *x, struct sk_buff *skb)
 static int xfrm4_transport_input(struct xfrm_state *x, struct sk_buff *skb)
 {
 	int ihl = skb->data - skb_transport_header(skb);
-	struct xfrm_offload *xo = xfrm_offload(skb);
 
 	if (skb->transport_header != skb->network_header) {
 		memmove(skb_transport_header(skb),
@@ -54,8 +53,7 @@ static int xfrm4_transport_input(struct xfrm_state *x, struct sk_buff *skb)
 		skb->network_header = skb->transport_header;
 	}
 	ip_hdr(skb)->tot_len = htons(skb->len + ihl);
-	if (!xo || !(xo->flags & XFRM_GRO))
-		skb_reset_transport_header(skb);
+	skb_reset_transport_header(skb);
 	return 0;
 }
 
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 6311a7fc5f63..3adf107b42d2 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -4289,11 +4289,6 @@ static int ip6_route_info_append(struct net *net,
 	if (!nh)
 		return -ENOMEM;
 	nh->fib6_info = rt;
-	err = ip6_convert_metrics(net, rt, r_cfg);
-	if (err) {
-		kfree(nh);
-		return err;
-	}
 	memcpy(&nh->r_cfg, r_cfg, sizeof(*r_cfg));
 	list_add_tail(&nh->next, rt6_nh_list);
 
diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index 841f4a07438e..9ef490dddcea 100644
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c
@@ -59,6 +59,7 @@ int xfrm6_transport_finish(struct sk_buff *skb, int async)
 
 	if (xo && (xo->flags & XFRM_GRO)) {
 		skb_mac_header_rebuild(skb);
+		skb_reset_transport_header(skb);
 		return -1;
 	}
 
diff --git a/net/ipv6/xfrm6_mode_transport.c b/net/ipv6/xfrm6_mode_transport.c
index 9ad07a91708e..3c29da5defe6 100644
--- a/net/ipv6/xfrm6_mode_transport.c
+++ b/net/ipv6/xfrm6_mode_transport.c
@@ -51,7 +51,6 @@ static int xfrm6_transport_output(struct xfrm_state *x, struct sk_buff *skb)
 static int xfrm6_transport_input(struct xfrm_state *x, struct sk_buff *skb)
 {
 	int ihl = skb->data - skb_transport_header(skb);
-	struct xfrm_offload *xo = xfrm_offload(skb);
 
 	if (skb->transport_header != skb->network_header) {
 		memmove(skb_transport_header(skb),
@@ -60,8 +59,7 @@ static int xfrm6_transport_input(struct xfrm_state *x, struct sk_buff *skb)
 	}
 	ipv6_hdr(skb)->payload_len = htons(skb->len + ihl -
 					   sizeof(struct ipv6hdr));
-	if (!xo || !(xo->flags & XFRM_GRO))
-		skb_reset_transport_header(skb);
+	skb_reset_transport_header(skb);
 	return 0;
 }
 
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 5959ce9620eb..6a74080005cf 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -170,9 +170,11 @@ static int __xfrm6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
 
 	if (toobig && xfrm6_local_dontfrag(skb)) {
 		xfrm6_local_rxpmtu(skb, mtu);
+		kfree_skb(skb);
 		return -EMSGSIZE;
 	} else if (!skb->ignore_df && toobig && skb->sk) {
 		xfrm_local_error(skb, mtu);
+		kfree_skb(skb);
 		return -EMSGSIZE;
 	}
 
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 5e6cf2cee965..5836ddeac9e3 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1756,7 +1756,8 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 
 		if (local->ops->wake_tx_queue &&
 		    type != NL80211_IFTYPE_AP_VLAN &&
-		    type != NL80211_IFTYPE_MONITOR)
+		    (type != NL80211_IFTYPE_MONITOR ||
+		     (params->flags & MONITOR_FLAG_ACTIVE)))
 			txq_size += sizeof(struct txq_info) +
 				    local->hw.txq_data_size;
 
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index ee56f18cad3f..21526630bf65 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -217,7 +217,8 @@ void mesh_rmc_free(struct ieee80211_sub_if_data *sdata);
 int mesh_rmc_init(struct ieee80211_sub_if_data *sdata);
 void ieee80211s_init(void);
 void ieee80211s_update_metric(struct ieee80211_local *local,
-			      struct sta_info *sta, struct sk_buff *skb);
+			      struct sta_info *sta,
+			      struct ieee80211_tx_status *st);
 void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata);
 void ieee80211_mesh_teardown_sdata(struct ieee80211_sub_if_data *sdata);
 int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index daf9db3c8f24..6950cd0bf594 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -295,15 +295,12 @@ int mesh_path_error_tx(struct ieee80211_sub_if_data *sdata,
 }
 
 void ieee80211s_update_metric(struct ieee80211_local *local,
-		struct sta_info *sta, struct sk_buff *skb)
+			      struct sta_info *sta,
+			      struct ieee80211_tx_status *st)
 {
-	struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	struct ieee80211_tx_info *txinfo = st->info;
 	int failed;
 
-	if (!ieee80211_is_data(hdr->frame_control))
-		return;
-
 	failed = !(txinfo->flags & IEEE80211_TX_STAT_ACK);
 
 	/* moving average, scaled to 100.
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 9a6d7208bf4f..91d7c0cd1882 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -479,11 +479,6 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local,
 	if (!skb)
 		return;
 
-	if (dropped) {
-		dev_kfree_skb_any(skb);
-		return;
-	}
-
 	if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) {
 		u64 cookie = IEEE80211_SKB_CB(skb)->ack.cookie;
 		struct ieee80211_sub_if_data *sdata;
@@ -507,6 +502,8 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local,
 		rcu_read_unlock();
 
 		dev_kfree_skb_any(skb);
+	} else if (dropped) {
+		dev_kfree_skb_any(skb);
 	} else {
 		/* consumes skb */
 		skb_complete_wifi_ack(skb, acked);
@@ -811,7 +808,7 @@ static void __ieee80211_tx_status(struct ieee80211_hw *hw,
 
 		rate_control_tx_status(local, sband, status);
 		if (ieee80211_vif_is_mesh(&sta->sdata->vif))
-			ieee80211s_update_metric(local, sta, skb);
+			ieee80211s_update_metric(local, sta, status);
 
 		if (!(info->flags & IEEE80211_TX_CTL_INJECTED) && acked)
 			ieee80211_frame_acked(sta, skb);
@@ -972,6 +969,8 @@ void ieee80211_tx_status_ext(struct ieee80211_hw *hw,
 		}
 
 		rate_control_tx_status(local, sband, status);
+		if (ieee80211_vif_is_mesh(&sta->sdata->vif))
+			ieee80211s_update_metric(local, sta, status);
 	}
 
 	if (acked || noack_success) {
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index 5cd5e6e5834e..6c647f425e05 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -16,6 +16,7 @@
 #include "ieee80211_i.h"
 #include "driver-ops.h"
 #include "rate.h"
+#include "wme.h"
 
 /* give usermode some time for retries in setting up the TDLS session */
 #define TDLS_PEER_SETUP_TIMEOUT	(15 * HZ)
@@ -1010,14 +1011,13 @@ ieee80211_tdls_prep_mgmt_packet(struct wiphy *wiphy, struct net_device *dev,
 	switch (action_code) {
 	case WLAN_TDLS_SETUP_REQUEST:
 	case WLAN_TDLS_SETUP_RESPONSE:
-		skb_set_queue_mapping(skb, IEEE80211_AC_BK);
-		skb->priority = 2;
+		skb->priority = 256 + 2;
 		break;
 	default:
-		skb_set_queue_mapping(skb, IEEE80211_AC_VI);
-		skb->priority = 5;
+		skb->priority = 256 + 5;
 		break;
 	}
+	skb_set_queue_mapping(skb, ieee80211_select_queue(sdata, skb));
 
 	/*
 	 * Set the WLAN_TDLS_TEARDOWN flag to indicate a teardown in progress.
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index c42bfa1dcd2c..e0ccee23fbcd 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -214,6 +214,7 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx)
 {
 	struct ieee80211_local *local = tx->local;
 	struct ieee80211_if_managed *ifmgd;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
 
 	/* driver doesn't support power save */
 	if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
@@ -242,6 +243,9 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx)
 	if (tx->sdata->vif.type != NL80211_IFTYPE_STATION)
 		return TX_CONTINUE;
 
+	if (unlikely(info->flags & IEEE80211_TX_INTFL_OFFCHAN_TX_OK))
+		return TX_CONTINUE;
+
 	ifmgd = &tx->sdata->u.mgd;
 
 	/*
@@ -1915,7 +1919,7 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
 			sdata->vif.hw_queue[skb_get_queue_mapping(skb)];
 
 	if (invoke_tx_handlers_early(&tx))
-		return false;
+		return true;
 
 	if (ieee80211_queue_skb(local, sdata, tx.sta, tx.skb))
 		return true;
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index b4bdf9eda7b7..247b89784a6f 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -1213,8 +1213,8 @@ static const struct nla_policy tcp_nla_policy[CTA_PROTOINFO_TCP_MAX+1] = {
 #define TCP_NLATTR_SIZE	( \
 	NLA_ALIGN(NLA_HDRLEN + 1) + \
 	NLA_ALIGN(NLA_HDRLEN + 1) + \
-	NLA_ALIGN(NLA_HDRLEN + sizeof(sizeof(struct nf_ct_tcp_flags))) + \
-	NLA_ALIGN(NLA_HDRLEN + sizeof(sizeof(struct nf_ct_tcp_flags))))
+	NLA_ALIGN(NLA_HDRLEN + sizeof(struct nf_ct_tcp_flags)) + \
+	NLA_ALIGN(NLA_HDRLEN + sizeof(struct nf_ct_tcp_flags)))
 
 static int nlattr_to_tcp(struct nlattr *cda[], struct nf_conn *ct)
 {
diff --git a/net/netfilter/nft_osf.c b/net/netfilter/nft_osf.c
index 5af74b37f423..a35fb59ace73 100644
--- a/net/netfilter/nft_osf.c
+++ b/net/netfilter/nft_osf.c
@@ -49,7 +49,7 @@ static int nft_osf_init(const struct nft_ctx *ctx,
 
 	priv->dreg = nft_parse_register(tb[NFTA_OSF_DREG]);
 	err = nft_validate_register_store(ctx, priv->dreg, NULL,
-					  NFTA_DATA_VALUE, NFT_OSF_MAXGENRELEN);
+					  NFT_DATA_VALUE, NFT_OSF_MAXGENRELEN);
 	if (err < 0)
 		return err;
 
diff --git a/net/netfilter/nft_set_rbtree.c b/net/netfilter/nft_set_rbtree.c
index 55e2d9215c0d..0e5ec126f6ad 100644
--- a/net/netfilter/nft_set_rbtree.c
+++ b/net/netfilter/nft_set_rbtree.c
@@ -355,12 +355,11 @@ cont:
 
 static void nft_rbtree_gc(struct work_struct *work)
 {
+	struct nft_rbtree_elem *rbe, *rbe_end = NULL, *rbe_prev = NULL;
 	struct nft_set_gc_batch *gcb = NULL;
-	struct rb_node *node, *prev = NULL;
-	struct nft_rbtree_elem *rbe;
 	struct nft_rbtree *priv;
+	struct rb_node *node;
 	struct nft_set *set;
-	int i;
 
 	priv = container_of(work, struct nft_rbtree, gc_work.work);
 	set  = nft_set_container_of(priv);
@@ -371,7 +370,7 @@ static void nft_rbtree_gc(struct work_struct *work)
 		rbe = rb_entry(node, struct nft_rbtree_elem, node);
 
 		if (nft_rbtree_interval_end(rbe)) {
-			prev = node;
+			rbe_end = rbe;
 			continue;
 		}
 		if (!nft_set_elem_expired(&rbe->ext))
@@ -379,29 +378,30 @@ static void nft_rbtree_gc(struct work_struct *work)
 		if (nft_set_elem_mark_busy(&rbe->ext))
 			continue;
 
+		if (rbe_prev) {
+			rb_erase(&rbe_prev->node, &priv->root);
+			rbe_prev = NULL;
+		}
 		gcb = nft_set_gc_batch_check(set, gcb, GFP_ATOMIC);
 		if (!gcb)
 			break;
 
 		atomic_dec(&set->nelems);
 		nft_set_gc_batch_add(gcb, rbe);
+		rbe_prev = rbe;
 
-		if (prev) {
-			rbe = rb_entry(prev, struct nft_rbtree_elem, node);
+		if (rbe_end) {
 			atomic_dec(&set->nelems);
-			nft_set_gc_batch_add(gcb, rbe);
-			prev = NULL;
+			nft_set_gc_batch_add(gcb, rbe_end);
+			rb_erase(&rbe_end->node, &priv->root);
+			rbe_end = NULL;
 		}
 		node = rb_next(node);
 		if (!node)
 			break;
 	}
-	if (gcb) {
-		for (i = 0; i < gcb->head.cnt; i++) {
-			rbe = gcb->elems[i];
-			rb_erase(&rbe->node, &priv->root);
-		}
-	}
+	if (rbe_prev)
+		rb_erase(&rbe_prev->node, &priv->root);
 	write_seqcount_end(&priv->count);
 	write_unlock_bh(&priv->lock);
 
diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c
index 0472f3472842..ada144e5645b 100644
--- a/net/netfilter/xt_socket.c
+++ b/net/netfilter/xt_socket.c
@@ -56,7 +56,7 @@ socket_match(const struct sk_buff *skb, struct xt_action_param *par,
 	struct sk_buff *pskb = (struct sk_buff *)skb;
 	struct sock *sk = skb->sk;
 
-	if (!net_eq(xt_net(par), sock_net(sk)))
+	if (sk && !net_eq(xt_net(par), sock_net(sk)))
 		sk = NULL;
 
 	if (!sk)
@@ -117,7 +117,7 @@ socket_mt6_v1_v2_v3(const struct sk_buff *skb, struct xt_action_param *par)
 	struct sk_buff *pskb = (struct sk_buff *)skb;
 	struct sock *sk = skb->sk;
 
-	if (!net_eq(xt_net(par), sock_net(sk)))
+	if (sk && !net_eq(xt_net(par), sock_net(sk)))
 		sk = NULL;
 
 	if (!sk)
diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
index 86a75105af1a..0aeb34c6389d 100644
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -1624,10 +1624,6 @@ int ovs_ct_copy_action(struct net *net, const struct nlattr *attr,
 		OVS_NLERR(log, "Failed to allocate conntrack template");
 		return -ENOMEM;
 	}
-
-	__set_bit(IPS_CONFIRMED_BIT, &ct_info.ct->status);
-	nf_conntrack_get(&ct_info.ct->ct_general);
-
 	if (helper) {
 		err = ovs_ct_add_helper(&ct_info, helper, key, log);
 		if (err)
@@ -1639,6 +1635,8 @@ int ovs_ct_copy_action(struct net *net, const struct nlattr *attr,
 	if (err)
 		goto err_free_ct;
 
+	__set_bit(IPS_CONFIRMED_BIT, &ct_info.ct->status);
+	nf_conntrack_get(&ct_info.ct->ct_general);
 	return 0;
 err_free_ct:
 	__ovs_ct_free_action(&ct_info);
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index c97558710421..ef9554131434 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -40,17 +40,12 @@ struct rxrpc_crypt {
 struct rxrpc_connection;
 
 /*
- * Mark applied to socket buffers.
+ * Mark applied to socket buffers in skb->mark.  skb->priority is used
+ * to pass supplementary information.
  */
 enum rxrpc_skb_mark {
-	RXRPC_SKB_MARK_DATA,		/* data message */
-	RXRPC_SKB_MARK_FINAL_ACK,	/* final ACK received message */
-	RXRPC_SKB_MARK_BUSY,		/* server busy message */
-	RXRPC_SKB_MARK_REMOTE_ABORT,	/* remote abort message */
-	RXRPC_SKB_MARK_LOCAL_ABORT,	/* local abort message */
-	RXRPC_SKB_MARK_NET_ERROR,	/* network error message */
-	RXRPC_SKB_MARK_LOCAL_ERROR,	/* local error message */
-	RXRPC_SKB_MARK_NEW_CALL,	/* local error message */
+	RXRPC_SKB_MARK_REJECT_BUSY,	/* Reject with BUSY */
+	RXRPC_SKB_MARK_REJECT_ABORT,	/* Reject with ABORT (code in skb->priority) */
 };
 
 /*
@@ -293,7 +288,6 @@ struct rxrpc_peer {
 	struct hlist_node	hash_link;
 	struct rxrpc_local	*local;
 	struct hlist_head	error_targets;	/* targets for net error distribution */
-	struct work_struct	error_distributor;
 	struct rb_root		service_conns;	/* Service connections */
 	struct list_head	keepalive_link;	/* Link in net->peer_keepalive[] */
 	time64_t		last_tx_at;	/* Last time packet sent here */
@@ -304,8 +298,6 @@ struct rxrpc_peer {
 	unsigned int		maxdata;	/* data size (MTU - hdrsize) */
 	unsigned short		hdrsize;	/* header size (IP + UDP + RxRPC) */
 	int			debug_id;	/* debug ID for printks */
-	int			error_report;	/* Net (+0) or local (+1000000) to distribute */
-#define RXRPC_LOCAL_ERROR_OFFSET 1000000
 	struct sockaddr_rxrpc	srx;		/* remote address */
 
 	/* calculated RTT cache */
@@ -463,6 +455,16 @@ struct rxrpc_connection {
 	u8			out_clientflag;	/* RXRPC_CLIENT_INITIATED if we are client */
 };
 
+static inline bool rxrpc_to_server(const struct rxrpc_skb_priv *sp)
+{
+	return sp->hdr.flags & RXRPC_CLIENT_INITIATED;
+}
+
+static inline bool rxrpc_to_client(const struct rxrpc_skb_priv *sp)
+{
+	return !rxrpc_to_server(sp);
+}
+
 /*
  * Flags in call->flags.
  */
@@ -717,6 +719,8 @@ extern struct workqueue_struct *rxrpc_workqueue;
 int rxrpc_service_prealloc(struct rxrpc_sock *, gfp_t);
 void rxrpc_discard_prealloc(struct rxrpc_sock *);
 struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *,
+					   struct rxrpc_sock *,
+					   struct rxrpc_peer *,
 					   struct rxrpc_connection *,
 					   struct sk_buff *);
 void rxrpc_accept_incoming_calls(struct rxrpc_local *);
@@ -908,7 +912,8 @@ extern unsigned int rxrpc_closed_conn_expiry;
 
 struct rxrpc_connection *rxrpc_alloc_connection(gfp_t);
 struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *,
-						   struct sk_buff *);
+						   struct sk_buff *,
+						   struct rxrpc_peer **);
 void __rxrpc_disconnect_call(struct rxrpc_connection *, struct rxrpc_call *);
 void rxrpc_disconnect_call(struct rxrpc_call *);
 void rxrpc_kill_connection(struct rxrpc_connection *);
@@ -1031,7 +1036,6 @@ void rxrpc_send_keepalive(struct rxrpc_peer *);
  * peer_event.c
  */
 void rxrpc_error_report(struct sock *);
-void rxrpc_peer_error_distributor(struct work_struct *);
 void rxrpc_peer_add_rtt(struct rxrpc_call *, enum rxrpc_rtt_rx_trace,
 			rxrpc_serial_t, rxrpc_serial_t, ktime_t, ktime_t);
 void rxrpc_peer_keepalive_worker(struct work_struct *);
@@ -1044,13 +1048,11 @@ struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *,
 struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *,
 				     struct sockaddr_rxrpc *, gfp_t);
 struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *, gfp_t);
-struct rxrpc_peer *rxrpc_lookup_incoming_peer(struct rxrpc_local *,
-					      struct rxrpc_peer *);
+void rxrpc_new_incoming_peer(struct rxrpc_local *, struct rxrpc_peer *);
 void rxrpc_destroy_all_peers(struct rxrpc_net *);
 struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *);
 struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *);
 void rxrpc_put_peer(struct rxrpc_peer *);
-void __rxrpc_queue_peer_error(struct rxrpc_peer *);
 
 /*
  * proc.c
diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c
index 9d1e298b784c..9c7f26d06a52 100644
--- a/net/rxrpc/call_accept.c
+++ b/net/rxrpc/call_accept.c
@@ -249,11 +249,11 @@ void rxrpc_discard_prealloc(struct rxrpc_sock *rx)
  */
 static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx,
 						    struct rxrpc_local *local,
+						    struct rxrpc_peer *peer,
 						    struct rxrpc_connection *conn,
 						    struct sk_buff *skb)
 {
 	struct rxrpc_backlog *b = rx->backlog;
-	struct rxrpc_peer *peer, *xpeer;
 	struct rxrpc_call *call;
 	unsigned short call_head, conn_head, peer_head;
 	unsigned short call_tail, conn_tail, peer_tail;
@@ -276,21 +276,18 @@ static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx,
 		return NULL;
 
 	if (!conn) {
-		/* No connection.  We're going to need a peer to start off
-		 * with.  If one doesn't yet exist, use a spare from the
-		 * preallocation set.  We dump the address into the spare in
-		 * anticipation - and to save on stack space.
-		 */
-		xpeer = b->peer_backlog[peer_tail];
-		if (rxrpc_extract_addr_from_skb(local, &xpeer->srx, skb) < 0)
-			return NULL;
-
-		peer = rxrpc_lookup_incoming_peer(local, xpeer);
-		if (peer == xpeer) {
+		if (peer && !rxrpc_get_peer_maybe(peer))
+			peer = NULL;
+		if (!peer) {
+			peer = b->peer_backlog[peer_tail];
+			if (rxrpc_extract_addr_from_skb(local, &peer->srx, skb) < 0)
+				return NULL;
 			b->peer_backlog[peer_tail] = NULL;
 			smp_store_release(&b->peer_backlog_tail,
 					  (peer_tail + 1) &
 					  (RXRPC_BACKLOG_MAX - 1));
+
+			rxrpc_new_incoming_peer(local, peer);
 		}
 
 		/* Now allocate and set up the connection */
@@ -335,45 +332,31 @@ static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx,
  * The call is returned with the user access mutex held.
  */
 struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *local,
+					   struct rxrpc_sock *rx,
+					   struct rxrpc_peer *peer,
 					   struct rxrpc_connection *conn,
 					   struct sk_buff *skb)
 {
 	struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
-	struct rxrpc_sock *rx;
 	struct rxrpc_call *call;
-	u16 service_id = sp->hdr.serviceId;
 
 	_enter("");
 
-	/* Get the socket providing the service */
-	rx = rcu_dereference(local->service);
-	if (rx && (service_id == rx->srx.srx_service ||
-		   service_id == rx->second_service))
-		goto found_service;
-
-	trace_rxrpc_abort(0, "INV", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq,
-			  RX_INVALID_OPERATION, EOPNOTSUPP);
-	skb->mark = RXRPC_SKB_MARK_LOCAL_ABORT;
-	skb->priority = RX_INVALID_OPERATION;
-	_leave(" = NULL [service]");
-	return NULL;
-
-found_service:
 	spin_lock(&rx->incoming_lock);
 	if (rx->sk.sk_state == RXRPC_SERVER_LISTEN_DISABLED ||
 	    rx->sk.sk_state == RXRPC_CLOSE) {
 		trace_rxrpc_abort(0, "CLS", sp->hdr.cid, sp->hdr.callNumber,
 				  sp->hdr.seq, RX_INVALID_OPERATION, ESHUTDOWN);
-		skb->mark = RXRPC_SKB_MARK_LOCAL_ABORT;
+		skb->mark = RXRPC_SKB_MARK_REJECT_ABORT;
 		skb->priority = RX_INVALID_OPERATION;
 		_leave(" = NULL [close]");
 		call = NULL;
 		goto out;
 	}
 
-	call = rxrpc_alloc_incoming_call(rx, local, conn, skb);
+	call = rxrpc_alloc_incoming_call(rx, local, peer, conn, skb);
 	if (!call) {
-		skb->mark = RXRPC_SKB_MARK_BUSY;
+		skb->mark = RXRPC_SKB_MARK_REJECT_BUSY;
 		_leave(" = NULL [busy]");
 		call = NULL;
 		goto out;
diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index 9486293fef5c..799f75b6900d 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -400,7 +400,7 @@ void rxrpc_incoming_call(struct rxrpc_sock *rx,
 	rcu_assign_pointer(conn->channels[chan].call, call);
 
 	spin_lock(&conn->params.peer->lock);
-	hlist_add_head(&call->error_link, &conn->params.peer->error_targets);
+	hlist_add_head_rcu(&call->error_link, &conn->params.peer->error_targets);
 	spin_unlock(&conn->params.peer->lock);
 
 	_net("CALL incoming %d on CONN %d", call->debug_id, call->conn->debug_id);
diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c
index f8f37188a932..8acf74fe24c0 100644
--- a/net/rxrpc/conn_client.c
+++ b/net/rxrpc/conn_client.c
@@ -710,8 +710,8 @@ int rxrpc_connect_call(struct rxrpc_call *call,
 	}
 
 	spin_lock_bh(&call->conn->params.peer->lock);
-	hlist_add_head(&call->error_link,
-		       &call->conn->params.peer->error_targets);
+	hlist_add_head_rcu(&call->error_link,
+			   &call->conn->params.peer->error_targets);
 	spin_unlock_bh(&call->conn->params.peer->lock);
 
 out:
diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c
index 77440a356b14..885dae829f4a 100644
--- a/net/rxrpc/conn_object.c
+++ b/net/rxrpc/conn_object.c
@@ -69,10 +69,14 @@ struct rxrpc_connection *rxrpc_alloc_connection(gfp_t gfp)
  * If successful, a pointer to the connection is returned, but no ref is taken.
  * NULL is returned if there is no match.
  *
+ * When searching for a service call, if we find a peer but no connection, we
+ * return that through *_peer in case we need to create a new service call.
+ *
  * The caller must be holding the RCU read lock.
  */
 struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *local,
-						   struct sk_buff *skb)
+						   struct sk_buff *skb,
+						   struct rxrpc_peer **_peer)
 {
 	struct rxrpc_connection *conn;
 	struct rxrpc_conn_proto k;
@@ -85,9 +89,6 @@ struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *local,
 	if (rxrpc_extract_addr_from_skb(local, &srx, skb) < 0)
 		goto not_found;
 
-	k.epoch	= sp->hdr.epoch;
-	k.cid	= sp->hdr.cid & RXRPC_CIDMASK;
-
 	/* We may have to handle mixing IPv4 and IPv6 */
 	if (srx.transport.family != local->srx.transport.family) {
 		pr_warn_ratelimited("AF_RXRPC: Protocol mismatch %u not %u\n",
@@ -99,7 +100,7 @@ struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *local,
 	k.epoch	= sp->hdr.epoch;
 	k.cid	= sp->hdr.cid & RXRPC_CIDMASK;
 
-	if (sp->hdr.flags & RXRPC_CLIENT_INITIATED) {
+	if (rxrpc_to_server(sp)) {
 		/* We need to look up service connections by the full protocol
 		 * parameter set.  We look up the peer first as an intermediate
 		 * step and then the connection from the peer's tree.
@@ -107,6 +108,7 @@ struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *local,
 		peer = rxrpc_lookup_peer_rcu(local, &srx);
 		if (!peer)
 			goto not_found;
+		*_peer = peer;
 		conn = rxrpc_find_service_conn_rcu(peer, skb);
 		if (!conn || atomic_read(&conn->usage) == 0)
 			goto not_found;
@@ -214,7 +216,7 @@ void rxrpc_disconnect_call(struct rxrpc_call *call)
 	call->peer->cong_cwnd = call->cong_cwnd;
 
 	spin_lock_bh(&conn->params.peer->lock);
-	hlist_del_init(&call->error_link);
+	hlist_del_rcu(&call->error_link);
 	spin_unlock_bh(&conn->params.peer->lock);
 
 	if (rxrpc_is_client_call(call))
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index ee8e7e1d5c0f..4b86b6be6c1f 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -622,13 +622,14 @@ static void rxrpc_input_requested_ack(struct rxrpc_call *call,
 		if (!skb)
 			continue;
 
+		sent_at = skb->tstamp;
+		smp_rmb(); /* Read timestamp before serial. */
 		sp = rxrpc_skb(skb);
 		if (sp->hdr.serial != orig_serial)
 			continue;
-		smp_rmb();
-		sent_at = skb->tstamp;
 		goto found;
 	}
+
 	return;
 
 found:
@@ -1124,12 +1125,14 @@ void rxrpc_data_ready(struct sock *udp_sk)
 {
 	struct rxrpc_connection *conn;
 	struct rxrpc_channel *chan;
-	struct rxrpc_call *call;
+	struct rxrpc_call *call = NULL;
 	struct rxrpc_skb_priv *sp;
 	struct rxrpc_local *local = udp_sk->sk_user_data;
+	struct rxrpc_peer *peer = NULL;
+	struct rxrpc_sock *rx = NULL;
 	struct sk_buff *skb;
 	unsigned int channel;
-	int ret, skew;
+	int ret, skew = 0;
 
 	_enter("%p", udp_sk);
 
@@ -1143,6 +1146,9 @@ void rxrpc_data_ready(struct sock *udp_sk)
 		return;
 	}
 
+	if (skb->tstamp == 0)
+		skb->tstamp = ktime_get_real();
+
 	rxrpc_new_skb(skb, rxrpc_skb_rx_received);
 
 	_net("recv skb %p", skb);
@@ -1177,46 +1183,75 @@ void rxrpc_data_ready(struct sock *udp_sk)
 
 	trace_rxrpc_rx_packet(sp);
 
-	_net("Rx RxRPC %s ep=%x call=%x:%x",
-	     sp->hdr.flags & RXRPC_CLIENT_INITIATED ? "ToServer" : "ToClient",
-	     sp->hdr.epoch, sp->hdr.cid, sp->hdr.callNumber);
-
-	if (sp->hdr.type >= RXRPC_N_PACKET_TYPES ||
-	    !((RXRPC_SUPPORTED_PACKET_TYPES >> sp->hdr.type) & 1)) {
-		_proto("Rx Bad Packet Type %u", sp->hdr.type);
-		goto bad_message;
-	}
-
 	switch (sp->hdr.type) {
 	case RXRPC_PACKET_TYPE_VERSION:
-		if (!(sp->hdr.flags & RXRPC_CLIENT_INITIATED))
+		if (rxrpc_to_client(sp))
 			goto discard;
 		rxrpc_post_packet_to_local(local, skb);
 		goto out;
 
 	case RXRPC_PACKET_TYPE_BUSY:
-		if (sp->hdr.flags & RXRPC_CLIENT_INITIATED)
+		if (rxrpc_to_server(sp))
 			goto discard;
 		/* Fall through */
+	case RXRPC_PACKET_TYPE_ACK:
+	case RXRPC_PACKET_TYPE_ACKALL:
+		if (sp->hdr.callNumber == 0)
+			goto bad_message;
+		/* Fall through */
+	case RXRPC_PACKET_TYPE_ABORT:
+		break;
 
 	case RXRPC_PACKET_TYPE_DATA:
-		if (sp->hdr.callNumber == 0)
+		if (sp->hdr.callNumber == 0 ||
+		    sp->hdr.seq == 0)
 			goto bad_message;
 		if (sp->hdr.flags & RXRPC_JUMBO_PACKET &&
 		    !rxrpc_validate_jumbo(skb))
 			goto bad_message;
 		break;
 
+	case RXRPC_PACKET_TYPE_CHALLENGE:
+		if (rxrpc_to_server(sp))
+			goto discard;
+		break;
+	case RXRPC_PACKET_TYPE_RESPONSE:
+		if (rxrpc_to_client(sp))
+			goto discard;
+		break;
+
 		/* Packet types 9-11 should just be ignored. */
 	case RXRPC_PACKET_TYPE_PARAMS:
 	case RXRPC_PACKET_TYPE_10:
 	case RXRPC_PACKET_TYPE_11:
 		goto discard;
+
+	default:
+		_proto("Rx Bad Packet Type %u", sp->hdr.type);
+		goto bad_message;
 	}
 
+	if (sp->hdr.serviceId == 0)
+		goto bad_message;
+
 	rcu_read_lock();
 
-	conn = rxrpc_find_connection_rcu(local, skb);
+	if (rxrpc_to_server(sp)) {
+		/* Weed out packets to services we're not offering.  Packets
+		 * that would begin a call are explicitly rejected and the rest
+		 * are just discarded.
+		 */
+		rx = rcu_dereference(local->service);
+		if (!rx || (sp->hdr.serviceId != rx->srx.srx_service &&
+			    sp->hdr.serviceId != rx->second_service)) {
+			if (sp->hdr.type == RXRPC_PACKET_TYPE_DATA &&
+			    sp->hdr.seq == 1)
+				goto unsupported_service;
+			goto discard_unlock;
+		}
+	}
+
+	conn = rxrpc_find_connection_rcu(local, skb, &peer);
 	if (conn) {
 		if (sp->hdr.securityIndex != conn->security_ix)
 			goto wrong_security;
@@ -1280,7 +1315,7 @@ void rxrpc_data_ready(struct sock *udp_sk)
 		call = rcu_dereference(chan->call);
 
 		if (sp->hdr.callNumber > chan->call_id) {
-			if (!(sp->hdr.flags & RXRPC_CLIENT_INITIATED)) {
+			if (rxrpc_to_client(sp)) {
 				rcu_read_unlock();
 				goto reject_packet;
 			}
@@ -1297,19 +1332,15 @@ void rxrpc_data_ready(struct sock *udp_sk)
 			if (!test_bit(RXRPC_CALL_RX_HEARD, &call->flags))
 				set_bit(RXRPC_CALL_RX_HEARD, &call->flags);
 		}
-	} else {
-		skew = 0;
-		call = NULL;
 	}
 
 	if (!call || atomic_read(&call->usage) == 0) {
-		if (!(sp->hdr.type & RXRPC_CLIENT_INITIATED) ||
-		    sp->hdr.callNumber == 0 ||
+		if (rxrpc_to_client(sp) ||
 		    sp->hdr.type != RXRPC_PACKET_TYPE_DATA)
 			goto bad_message_unlock;
 		if (sp->hdr.seq != 1)
 			goto discard_unlock;
-		call = rxrpc_new_incoming_call(local, conn, skb);
+		call = rxrpc_new_incoming_call(local, rx, peer, conn, skb);
 		if (!call) {
 			rcu_read_unlock();
 			goto reject_packet;
@@ -1340,6 +1371,13 @@ wrong_security:
 	skb->priority = RXKADINCONSISTENCY;
 	goto post_abort;
 
+unsupported_service:
+	rcu_read_unlock();
+	trace_rxrpc_abort(0, "INV", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq,
+			  RX_INVALID_OPERATION, EOPNOTSUPP);
+	skb->priority = RX_INVALID_OPERATION;
+	goto post_abort;
+
 reupgrade:
 	rcu_read_unlock();
 	trace_rxrpc_abort(0, "UPG", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq,
@@ -1354,7 +1392,7 @@ bad_message:
 protocol_error:
 	skb->priority = RX_PROTOCOL_ERROR;
 post_abort:
-	skb->mark = RXRPC_SKB_MARK_LOCAL_ABORT;
+	skb->mark = RXRPC_SKB_MARK_REJECT_ABORT;
 reject_packet:
 	trace_rxrpc_rx_done(skb->mark, skb->priority);
 	rxrpc_reject_packet(local, skb);
diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c
index 777c3ed4cfc0..94d234e9c685 100644
--- a/net/rxrpc/local_object.c
+++ b/net/rxrpc/local_object.c
@@ -135,10 +135,10 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net)
 	}
 
 	switch (local->srx.transport.family) {
-	case AF_INET:
-		/* we want to receive ICMP errors */
+	case AF_INET6:
+		/* we want to receive ICMPv6 errors */
 		opt = 1;
-		ret = kernel_setsockopt(local->socket, SOL_IP, IP_RECVERR,
+		ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_RECVERR,
 					(char *) &opt, sizeof(opt));
 		if (ret < 0) {
 			_debug("setsockopt failed");
@@ -146,19 +146,22 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net)
 		}
 
 		/* we want to set the don't fragment bit */
-		opt = IP_PMTUDISC_DO;
-		ret = kernel_setsockopt(local->socket, SOL_IP, IP_MTU_DISCOVER,
+		opt = IPV6_PMTUDISC_DO;
+		ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_MTU_DISCOVER,
 					(char *) &opt, sizeof(opt));
 		if (ret < 0) {
 			_debug("setsockopt failed");
 			goto error;
 		}
-		break;
 
-	case AF_INET6:
+		/* Fall through and set IPv4 options too otherwise we don't get
+		 * errors from IPv4 packets sent through the IPv6 socket.
+		 */
+
+	case AF_INET:
 		/* we want to receive ICMP errors */
 		opt = 1;
-		ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_RECVERR,
+		ret = kernel_setsockopt(local->socket, SOL_IP, IP_RECVERR,
 					(char *) &opt, sizeof(opt));
 		if (ret < 0) {
 			_debug("setsockopt failed");
@@ -166,13 +169,22 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net)
 		}
 
 		/* we want to set the don't fragment bit */
-		opt = IPV6_PMTUDISC_DO;
-		ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_MTU_DISCOVER,
+		opt = IP_PMTUDISC_DO;
+		ret = kernel_setsockopt(local->socket, SOL_IP, IP_MTU_DISCOVER,
 					(char *) &opt, sizeof(opt));
 		if (ret < 0) {
 			_debug("setsockopt failed");
 			goto error;
 		}
+
+		/* We want receive timestamps. */
+		opt = 1;
+		ret = kernel_setsockopt(local->socket, SOL_SOCKET, SO_TIMESTAMPNS,
+					(char *)&opt, sizeof(opt));
+		if (ret < 0) {
+			_debug("setsockopt failed");
+			goto error;
+		}
 		break;
 
 	default:
diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c
index ccf5de160444..e8fb8922bca8 100644
--- a/net/rxrpc/output.c
+++ b/net/rxrpc/output.c
@@ -124,7 +124,6 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, bool ping,
 	struct kvec iov[2];
 	rxrpc_serial_t serial;
 	rxrpc_seq_t hard_ack, top;
-	ktime_t now;
 	size_t len, n;
 	int ret;
 	u8 reason;
@@ -196,9 +195,7 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, bool ping,
 		/* We need to stick a time in before we send the packet in case
 		 * the reply gets back before kernel_sendmsg() completes - but
 		 * asking UDP to send the packet can take a relatively long
-		 * time, so we update the time after, on the assumption that
-		 * the packet transmission is more likely to happen towards the
-		 * end of the kernel_sendmsg() call.
+		 * time.
 		 */
 		call->ping_time = ktime_get_real();
 		set_bit(RXRPC_CALL_PINGING, &call->flags);
@@ -206,9 +203,6 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, bool ping,
 	}
 
 	ret = kernel_sendmsg(conn->params.local->socket, &msg, iov, 2, len);
-	now = ktime_get_real();
-	if (ping)
-		call->ping_time = now;
 	conn->params.peer->last_tx_at = ktime_get_seconds();
 	if (ret < 0)
 		trace_rxrpc_tx_fail(call->debug_id, serial, ret,
@@ -363,8 +357,14 @@ int rxrpc_send_data_packet(struct rxrpc_call *call, struct sk_buff *skb,
 
 	/* If our RTT cache needs working on, request an ACK.  Also request
 	 * ACKs if a DATA packet appears to have been lost.
+	 *
+	 * However, we mustn't request an ACK on the last reply packet of a
+	 * service call, lest OpenAFS incorrectly send us an ACK with some
+	 * soft-ACKs in it and then never follow up with a proper hard ACK.
 	 */
-	if (!(sp->hdr.flags & RXRPC_LAST_PACKET) &&
+	if ((!(sp->hdr.flags & RXRPC_LAST_PACKET) ||
+	     rxrpc_to_server(sp)
+	     ) &&
 	    (test_and_clear_bit(RXRPC_CALL_EV_ACK_LOST, &call->events) ||
 	     retrans ||
 	     call->cong_mode == RXRPC_CALL_SLOW_START ||
@@ -390,6 +390,11 @@ int rxrpc_send_data_packet(struct rxrpc_call *call, struct sk_buff *skb,
 		goto send_fragmentable;
 
 	down_read(&conn->params.local->defrag_sem);
+
+	sp->hdr.serial = serial;
+	smp_wmb(); /* Set serial before timestamp */
+	skb->tstamp = ktime_get_real();
+
 	/* send the packet by UDP
 	 * - returns -EMSGSIZE if UDP would have to fragment the packet
 	 *   to go out of the interface
@@ -413,12 +418,8 @@ done:
 	trace_rxrpc_tx_data(call, sp->hdr.seq, serial, whdr.flags,
 			    retrans, lost);
 	if (ret >= 0) {
-		ktime_t now = ktime_get_real();
-		skb->tstamp = now;
-		smp_wmb();
-		sp->hdr.serial = serial;
 		if (whdr.flags & RXRPC_REQUEST_ACK) {
-			call->peer->rtt_last_req = now;
+			call->peer->rtt_last_req = skb->tstamp;
 			trace_rxrpc_rtt_tx(call, rxrpc_rtt_tx_data, serial);
 			if (call->peer->rtt_usage > 1) {
 				unsigned long nowj = jiffies, ack_lost_at;
@@ -457,6 +458,10 @@ send_fragmentable:
 
 	down_write(&conn->params.local->defrag_sem);
 
+	sp->hdr.serial = serial;
+	smp_wmb(); /* Set serial before timestamp */
+	skb->tstamp = ktime_get_real();
+
 	switch (conn->params.local->srx.transport.family) {
 	case AF_INET:
 		opt = IP_PMTUDISC_DONT;
@@ -519,7 +524,7 @@ void rxrpc_reject_packets(struct rxrpc_local *local)
 	struct kvec iov[2];
 	size_t size;
 	__be32 code;
-	int ret;
+	int ret, ioc;
 
 	_enter("%d", local->debug_id);
 
@@ -527,7 +532,6 @@ void rxrpc_reject_packets(struct rxrpc_local *local)
 	iov[0].iov_len = sizeof(whdr);
 	iov[1].iov_base = &code;
 	iov[1].iov_len = sizeof(code);
-	size = sizeof(whdr) + sizeof(code);
 
 	msg.msg_name = &srx.transport;
 	msg.msg_control = NULL;
@@ -535,17 +539,31 @@ void rxrpc_reject_packets(struct rxrpc_local *local)
 	msg.msg_flags = 0;
 
 	memset(&whdr, 0, sizeof(whdr));
-	whdr.type = RXRPC_PACKET_TYPE_ABORT;
 
 	while ((skb = skb_dequeue(&local->reject_queue))) {
 		rxrpc_see_skb(skb, rxrpc_skb_rx_seen);
 		sp = rxrpc_skb(skb);
 
+		switch (skb->mark) {
+		case RXRPC_SKB_MARK_REJECT_BUSY:
+			whdr.type = RXRPC_PACKET_TYPE_BUSY;
+			size = sizeof(whdr);
+			ioc = 1;
+			break;
+		case RXRPC_SKB_MARK_REJECT_ABORT:
+			whdr.type = RXRPC_PACKET_TYPE_ABORT;
+			code = htonl(skb->priority);
+			size = sizeof(whdr) + sizeof(code);
+			ioc = 2;
+			break;
+		default:
+			rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
+			continue;
+		}
+
 		if (rxrpc_extract_addr_from_skb(local, &srx, skb) == 0) {
 			msg.msg_namelen = srx.transport_len;
 
-			code = htonl(skb->priority);
-
 			whdr.epoch	= htonl(sp->hdr.epoch);
 			whdr.cid	= htonl(sp->hdr.cid);
 			whdr.callNumber	= htonl(sp->hdr.callNumber);
diff --git a/net/rxrpc/peer_event.c b/net/rxrpc/peer_event.c
index 4f9da2f51c69..f3e6fc670da2 100644
--- a/net/rxrpc/peer_event.c
+++ b/net/rxrpc/peer_event.c
@@ -23,6 +23,8 @@
 #include "ar-internal.h"
 
 static void rxrpc_store_error(struct rxrpc_peer *, struct sock_exterr_skb *);
+static void rxrpc_distribute_error(struct rxrpc_peer *, int,
+				   enum rxrpc_call_completion);
 
 /*
  * Find the peer associated with an ICMP packet.
@@ -194,8 +196,6 @@ void rxrpc_error_report(struct sock *sk)
 	rcu_read_unlock();
 	rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
 
-	/* The ref we obtained is passed off to the work item */
-	__rxrpc_queue_peer_error(peer);
 	_leave("");
 }
 
@@ -205,6 +205,7 @@ void rxrpc_error_report(struct sock *sk)
 static void rxrpc_store_error(struct rxrpc_peer *peer,
 			      struct sock_exterr_skb *serr)
 {
+	enum rxrpc_call_completion compl = RXRPC_CALL_NETWORK_ERROR;
 	struct sock_extended_err *ee;
 	int err;
 
@@ -255,7 +256,7 @@ static void rxrpc_store_error(struct rxrpc_peer *peer,
 	case SO_EE_ORIGIN_NONE:
 	case SO_EE_ORIGIN_LOCAL:
 		_proto("Rx Received local error { error=%d }", err);
-		err += RXRPC_LOCAL_ERROR_OFFSET;
+		compl = RXRPC_CALL_LOCAL_ERROR;
 		break;
 
 	case SO_EE_ORIGIN_ICMP6:
@@ -264,48 +265,23 @@ static void rxrpc_store_error(struct rxrpc_peer *peer,
 		break;
 	}
 
-	peer->error_report = err;
+	rxrpc_distribute_error(peer, err, compl);
 }
 
 /*
- * Distribute an error that occurred on a peer
+ * Distribute an error that occurred on a peer.
  */
-void rxrpc_peer_error_distributor(struct work_struct *work)
+static void rxrpc_distribute_error(struct rxrpc_peer *peer, int error,
+				   enum rxrpc_call_completion compl)
 {
-	struct rxrpc_peer *peer =
-		container_of(work, struct rxrpc_peer, error_distributor);
 	struct rxrpc_call *call;
-	enum rxrpc_call_completion compl;
-	int error;
-
-	_enter("");
-
-	error = READ_ONCE(peer->error_report);
-	if (error < RXRPC_LOCAL_ERROR_OFFSET) {
-		compl = RXRPC_CALL_NETWORK_ERROR;
-	} else {
-		compl = RXRPC_CALL_LOCAL_ERROR;
-		error -= RXRPC_LOCAL_ERROR_OFFSET;
-	}
 
-	_debug("ISSUE ERROR %s %d", rxrpc_call_completions[compl], error);
-
-	spin_lock_bh(&peer->lock);
-
-	while (!hlist_empty(&peer->error_targets)) {
-		call = hlist_entry(peer->error_targets.first,
-				   struct rxrpc_call, error_link);
-		hlist_del_init(&call->error_link);
+	hlist_for_each_entry_rcu(call, &peer->error_targets, error_link) {
 		rxrpc_see_call(call);
-
-		if (rxrpc_set_call_completion(call, compl, 0, -error))
+		if (call->state < RXRPC_CALL_COMPLETE &&
+		    rxrpc_set_call_completion(call, compl, 0, -error))
 			rxrpc_notify_socket(call);
 	}
-
-	spin_unlock_bh(&peer->lock);
-
-	rxrpc_put_peer(peer);
-	_leave("");
 }
 
 /*
diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c
index 1dc7648e3eff..01a9febfa367 100644
--- a/net/rxrpc/peer_object.c
+++ b/net/rxrpc/peer_object.c
@@ -124,11 +124,9 @@ static struct rxrpc_peer *__rxrpc_lookup_peer_rcu(
 	struct rxrpc_net *rxnet = local->rxnet;
 
 	hash_for_each_possible_rcu(rxnet->peer_hash, peer, hash_link, hash_key) {
-		if (rxrpc_peer_cmp_key(peer, local, srx, hash_key) == 0) {
-			if (atomic_read(&peer->usage) == 0)
-				return NULL;
+		if (rxrpc_peer_cmp_key(peer, local, srx, hash_key) == 0 &&
+		    atomic_read(&peer->usage) > 0)
 			return peer;
-		}
 	}
 
 	return NULL;
@@ -222,8 +220,6 @@ struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *local, gfp_t gfp)
 		atomic_set(&peer->usage, 1);
 		peer->local = local;
 		INIT_HLIST_HEAD(&peer->error_targets);
-		INIT_WORK(&peer->error_distributor,
-			  &rxrpc_peer_error_distributor);
 		peer->service_conns = RB_ROOT;
 		seqlock_init(&peer->service_conn_lock);
 		spin_lock_init(&peer->lock);
@@ -299,34 +295,23 @@ static struct rxrpc_peer *rxrpc_create_peer(struct rxrpc_local *local,
 }
 
 /*
- * Set up a new incoming peer.  The address is prestored in the preallocated
- * peer.
+ * Set up a new incoming peer.  There shouldn't be any other matching peers
+ * since we've already done a search in the list from the non-reentrant context
+ * (the data_ready handler) that is the only place we can add new peers.
  */
-struct rxrpc_peer *rxrpc_lookup_incoming_peer(struct rxrpc_local *local,
-					      struct rxrpc_peer *prealloc)
+void rxrpc_new_incoming_peer(struct rxrpc_local *local, struct rxrpc_peer *peer)
 {
-	struct rxrpc_peer *peer;
 	struct rxrpc_net *rxnet = local->rxnet;
 	unsigned long hash_key;
 
-	hash_key = rxrpc_peer_hash_key(local, &prealloc->srx);
-	prealloc->local = local;
-	rxrpc_init_peer(prealloc, hash_key);
+	hash_key = rxrpc_peer_hash_key(local, &peer->srx);
+	peer->local = local;
+	rxrpc_init_peer(peer, hash_key);
 
 	spin_lock(&rxnet->peer_hash_lock);
-
-	/* Need to check that we aren't racing with someone else */
-	peer = __rxrpc_lookup_peer_rcu(local, &prealloc->srx, hash_key);
-	if (peer && !rxrpc_get_peer_maybe(peer))
-		peer = NULL;
-	if (!peer) {
-		peer = prealloc;
-		hash_add_rcu(rxnet->peer_hash, &peer->hash_link, hash_key);
-		list_add_tail(&peer->keepalive_link, &rxnet->peer_keepalive_new);
-	}
-
+	hash_add_rcu(rxnet->peer_hash, &peer->hash_link, hash_key);
+	list_add_tail(&peer->keepalive_link, &rxnet->peer_keepalive_new);
 	spin_unlock(&rxnet->peer_hash_lock);
-	return peer;
 }
 
 /*
@@ -416,21 +401,6 @@ struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *peer)
 }
 
 /*
- * Queue a peer record.  This passes the caller's ref to the workqueue.
- */
-void __rxrpc_queue_peer_error(struct rxrpc_peer *peer)
-{
-	const void *here = __builtin_return_address(0);
-	int n;
-
-	n = atomic_read(&peer->usage);
-	if (rxrpc_queue_work(&peer->error_distributor))
-		trace_rxrpc_peer(peer, rxrpc_peer_queued_error, n, here);
-	else
-		rxrpc_put_peer(peer);
-}
-
-/*
  * Discard a peer record.
  */
 static void __rxrpc_put_peer(struct rxrpc_peer *peer)
diff --git a/net/rxrpc/protocol.h b/net/rxrpc/protocol.h
index 93da73bf7098..f9cb83c938f3 100644
--- a/net/rxrpc/protocol.h
+++ b/net/rxrpc/protocol.h
@@ -50,7 +50,6 @@ struct rxrpc_wire_header {
 #define RXRPC_PACKET_TYPE_10		10	/* Ignored */
 #define RXRPC_PACKET_TYPE_11		11	/* Ignored */
 #define RXRPC_PACKET_TYPE_VERSION	13	/* version string request */
-#define RXRPC_N_PACKET_TYPES		14	/* number of packet types (incl type 0) */
 
 	uint8_t		flags;		/* packet flags */
 #define RXRPC_CLIENT_INITIATED	0x01		/* signifies a packet generated by a client */
@@ -72,20 +71,6 @@ struct rxrpc_wire_header {
 
 } __packed;
 
-#define RXRPC_SUPPORTED_PACKET_TYPES (			\
-		(1 << RXRPC_PACKET_TYPE_DATA) |		\
-		(1 << RXRPC_PACKET_TYPE_ACK) |		\
-		(1 << RXRPC_PACKET_TYPE_BUSY) |		\
-		(1 << RXRPC_PACKET_TYPE_ABORT) |	\
-		(1 << RXRPC_PACKET_TYPE_ACKALL) |	\
-		(1 << RXRPC_PACKET_TYPE_CHALLENGE) |	\
-		(1 << RXRPC_PACKET_TYPE_RESPONSE) |	\
-		/*(1 << RXRPC_PACKET_TYPE_DEBUG) | */	\
-		(1 << RXRPC_PACKET_TYPE_PARAMS) |	\
-		(1 << RXRPC_PACKET_TYPE_10) |		\
-		(1 << RXRPC_PACKET_TYPE_11) |		\
-		(1 << RXRPC_PACKET_TYPE_VERSION))
-
 /*****************************************************************************/
 /*
  * jumbo packet secondary header
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 1efbfb10b1fc..8af6c11d2482 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -135,7 +135,7 @@ static int __tcf_ipt_init(struct net *net, unsigned int id, struct nlattr *nla,
 	}
 
 	td = (struct xt_entry_target *)nla_data(tb[TCA_IPT_TARG]);
-	if (nla_len(tb[TCA_IPT_TARG]) < td->u.target_size) {
+	if (nla_len(tb[TCA_IPT_TARG]) != td->u.target_size) {
 		if (exists)
 			tcf_idr_release(*a, bind);
 		else
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index d74d00b29942..42191ed9902b 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -1048,7 +1048,7 @@ static void sctp_outq_flush_data(struct sctp_flush_ctx *ctx,
 		if (!ctx->packet || !ctx->packet->has_cookie_echo)
 			return;
 
-		/* fallthru */
+		/* fall through */
 	case SCTP_STATE_ESTABLISHED:
 	case SCTP_STATE_SHUTDOWN_PENDING:
 	case SCTP_STATE_SHUTDOWN_RECEIVED:
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 91891041e5e1..e65c3a8551e4 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -609,16 +609,18 @@ static int tipc_l2_device_event(struct notifier_block *nb, unsigned long evt,
 
 	switch (evt) {
 	case NETDEV_CHANGE:
-		if (netif_carrier_ok(dev))
+		if (netif_carrier_ok(dev) && netif_oper_up(dev)) {
+			test_and_set_bit_lock(0, &b->up);
 			break;
-		/* else: fall through */
-	case NETDEV_UP:
-		test_and_set_bit_lock(0, &b->up);
-		break;
+		}
+		/* fall through */
 	case NETDEV_GOING_DOWN:
 		clear_bit_unlock(0, &b->up);
 		tipc_reset_bearer(net, b);
 		break;
+	case NETDEV_UP:
+		test_and_set_bit_lock(0, &b->up);
+		break;
 	case NETDEV_CHANGEMTU:
 		if (tipc_mtu_bad(dev, 0)) {
 			bearer_disable(net, b);
diff --git a/net/tipc/link.c b/net/tipc/link.c
index b1f0bee54eac..fb886b525d95 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -410,6 +410,11 @@ char *tipc_link_name(struct tipc_link *l)
 	return l->name;
 }
 
+u32 tipc_link_state(struct tipc_link *l)
+{
+	return l->state;
+}
+
 /**
  * tipc_link_create - create a new link
  * @n: pointer to associated node
@@ -841,9 +846,14 @@ void tipc_link_reset(struct tipc_link *l)
 	l->in_session = false;
 	l->session++;
 	l->mtu = l->advertised_mtu;
+	spin_lock_bh(&l->wakeupq.lock);
+	spin_lock_bh(&l->inputq->lock);
+	skb_queue_splice_init(&l->wakeupq, l->inputq);
+	spin_unlock_bh(&l->inputq->lock);
+	spin_unlock_bh(&l->wakeupq.lock);
+
 	__skb_queue_purge(&l->transmq);
 	__skb_queue_purge(&l->deferdq);
-	skb_queue_splice_init(&l->wakeupq, l->inputq);
 	__skb_queue_purge(&l->backlogq);
 	l->backlog[TIPC_LOW_IMPORTANCE].len = 0;
 	l->backlog[TIPC_MEDIUM_IMPORTANCE].len = 0;
@@ -1380,6 +1390,36 @@ static void tipc_link_build_proto_msg(struct tipc_link *l, int mtyp, bool probe,
 	__skb_queue_tail(xmitq, skb);
 }
 
+void tipc_link_create_dummy_tnl_msg(struct tipc_link *l,
+				    struct sk_buff_head *xmitq)
+{
+	u32 onode = tipc_own_addr(l->net);
+	struct tipc_msg *hdr, *ihdr;
+	struct sk_buff_head tnlq;
+	struct sk_buff *skb;
+	u32 dnode = l->addr;
+
+	skb_queue_head_init(&tnlq);
+	skb = tipc_msg_create(TUNNEL_PROTOCOL, FAILOVER_MSG,
+			      INT_H_SIZE, BASIC_H_SIZE,
+			      dnode, onode, 0, 0, 0);
+	if (!skb) {
+		pr_warn("%sunable to create tunnel packet\n", link_co_err);
+		return;
+	}
+
+	hdr = buf_msg(skb);
+	msg_set_msgcnt(hdr, 1);
+	msg_set_bearer_id(hdr, l->peer_bearer_id);
+
+	ihdr = (struct tipc_msg *)msg_data(hdr);
+	tipc_msg_init(onode, ihdr, TIPC_LOW_IMPORTANCE, TIPC_DIRECT_MSG,
+		      BASIC_H_SIZE, dnode);
+	msg_set_errcode(ihdr, TIPC_ERR_NO_PORT);
+	__skb_queue_tail(&tnlq, skb);
+	tipc_link_xmit(l, &tnlq, xmitq);
+}
+
 /* tipc_link_tnl_prepare(): prepare and return a list of tunnel packets
  * with contents of the link's transmit and backlog queues.
  */
@@ -1476,6 +1516,9 @@ bool tipc_link_validate_msg(struct tipc_link *l, struct tipc_msg *hdr)
 			return false;
 		if (session != curr_session)
 			return false;
+		/* Extra sanity check */
+		if (!link_is_up(l) && msg_ack(hdr))
+			return false;
 		if (!(l->peer_caps & TIPC_LINK_PROTO_SEQNO))
 			return true;
 		/* Accept only STATE with new sequence number */
diff --git a/net/tipc/link.h b/net/tipc/link.h
index 7bc494a33fdf..90488c538a4e 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -88,6 +88,8 @@ bool tipc_link_bc_create(struct net *net, u32 ownnode, u32 peer,
 			 struct tipc_link **link);
 void tipc_link_tnl_prepare(struct tipc_link *l, struct tipc_link *tnl,
 			   int mtyp, struct sk_buff_head *xmitq);
+void tipc_link_create_dummy_tnl_msg(struct tipc_link *tnl,
+				    struct sk_buff_head *xmitq);
 void tipc_link_build_reset_msg(struct tipc_link *l, struct sk_buff_head *xmitq);
 int tipc_link_fsm_evt(struct tipc_link *l, int evt);
 bool tipc_link_is_up(struct tipc_link *l);
@@ -107,6 +109,7 @@ u16 tipc_link_rcv_nxt(struct tipc_link *l);
 u16 tipc_link_acked(struct tipc_link *l);
 u32 tipc_link_id(struct tipc_link *l);
 char *tipc_link_name(struct tipc_link *l);
+u32 tipc_link_state(struct tipc_link *l);
 char tipc_link_plane(struct tipc_link *l);
 int tipc_link_prio(struct tipc_link *l);
 int tipc_link_window(struct tipc_link *l);
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 68014f1b6976..2afc4f8c37a7 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -111,6 +111,7 @@ struct tipc_node {
 	int action_flags;
 	struct list_head list;
 	int state;
+	bool failover_sent;
 	u16 sync_point;
 	int link_cnt;
 	u16 working_links;
@@ -680,6 +681,7 @@ static void __tipc_node_link_up(struct tipc_node *n, int bearer_id,
 		*slot0 = bearer_id;
 		*slot1 = bearer_id;
 		tipc_node_fsm_evt(n, SELF_ESTABL_CONTACT_EVT);
+		n->failover_sent = false;
 		n->action_flags |= TIPC_NOTIFY_NODE_UP;
 		tipc_link_set_active(nl, true);
 		tipc_bcast_add_peer(n->net, nl, xmitq);
@@ -911,6 +913,7 @@ void tipc_node_check_dest(struct net *net, u32 addr,
 	bool reset = true;
 	char *if_name;
 	unsigned long intv;
+	u16 session;
 
 	*dupl_addr = false;
 	*respond = false;
@@ -997,9 +1000,10 @@ void tipc_node_check_dest(struct net *net, u32 addr,
 			goto exit;
 
 		if_name = strchr(b->name, ':') + 1;
+		get_random_bytes(&session, sizeof(u16));
 		if (!tipc_link_create(net, if_name, b->identity, b->tolerance,
 				      b->net_plane, b->mtu, b->priority,
-				      b->window, mod(tipc_net(net)->random),
+				      b->window, session,
 				      tipc_own_addr(net), addr, peer_id,
 				      n->capabilities,
 				      tipc_bc_sndlink(n->net), n->bc_entry.link,
@@ -1615,6 +1619,14 @@ static bool tipc_node_check_state(struct tipc_node *n, struct sk_buff *skb,
 			tipc_skb_queue_splice_tail_init(tipc_link_inputq(pl),
 							tipc_link_inputq(l));
 		}
+		/* If parallel link was already down, and this happened before
+		 * the tunnel link came up, FAILOVER was never sent. Ensure that
+		 * FAILOVER is sent to get peer out of NODE_FAILINGOVER state.
+		 */
+		if (n->state != NODE_FAILINGOVER && !n->failover_sent) {
+			tipc_link_create_dummy_tnl_msg(l, xmitq);
+			n->failover_sent = true;
+		}
 		/* If pkts arrive out of order, use lowest calculated syncpt */
 		if (less(syncpt, n->sync_point))
 			n->sync_point = syncpt;
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 595c5001b28d..db148c4a916a 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -1424,8 +1424,10 @@ static int __tipc_sendstream(struct socket *sock, struct msghdr *m, size_t dlen)
 	/* Handle implicit connection setup */
 	if (unlikely(dest)) {
 		rc = __tipc_sendmsg(sock, m, dlen);
-		if (dlen && (dlen == rc))
+		if (dlen && dlen == rc) {
+			tsk->peer_caps = tipc_node_get_capabilities(net, dnode);
 			tsk->snt_unacked = tsk_inc(tsk, dlen + msg_hdr_sz(hdr));
+		}
 		return rc;
 	}
 
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index d5f9b5235cdd..a02bbdd1b192 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3756,6 +3756,7 @@ static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
 			return false;
 
 		/* check availability */
+		ridx = array_index_nospec(ridx, IEEE80211_HT_MCS_MASK_LEN);
 		if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
 			mcs[ridx] |= rbit;
 		else
@@ -10234,7 +10235,7 @@ static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	s32 last, low, high;
 	u32 hyst;
-	int i, n;
+	int i, n, low_index;
 	int err;
 
 	/* RSSI reporting disabled? */
@@ -10271,10 +10272,19 @@ static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
 		if (last < wdev->cqm_config->rssi_thresholds[i])
 			break;
 
-	low = i > 0 ?
-		(wdev->cqm_config->rssi_thresholds[i - 1] - hyst) : S32_MIN;
-	high = i < n ?
-		(wdev->cqm_config->rssi_thresholds[i] + hyst - 1) : S32_MAX;
+	low_index = i - 1;
+	if (low_index >= 0) {
+		low_index = array_index_nospec(low_index, n);
+		low = wdev->cqm_config->rssi_thresholds[low_index] - hyst;
+	} else {
+		low = S32_MIN;
+	}
+	if (i < n) {
+		i = array_index_nospec(i, n);
+		high = wdev->cqm_config->rssi_thresholds[i] + hyst - 1;
+	} else {
+		high = S32_MAX;
+	}
 
 	return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
 }
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 56be68a27bb9..5ad5b9f98e8f 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -2873,6 +2873,7 @@ static int regulatory_hint_core(const char *alpha2)
 	request->alpha2[0] = alpha2[0];
 	request->alpha2[1] = alpha2[1];
 	request->initiator = NL80211_REGDOM_SET_BY_CORE;
+	request->wiphy_idx = WIPHY_IDX_INVALID;
 
 	queue_regulatory_request(request);
 
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index d36c3eb7b931..d0e7472dd9fd 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -1058,13 +1058,23 @@ cfg80211_bss_update(struct cfg80211_registered_device *rdev,
 	return NULL;
 }
 
+/*
+ * Update RX channel information based on the available frame payload
+ * information. This is mainly for the 2.4 GHz band where frames can be received
+ * from neighboring channels and the Beacon frames use the DSSS Parameter Set
+ * element to indicate the current (transmitting) channel, but this might also
+ * be needed on other bands if RX frequency does not match with the actual
+ * operating channel of a BSS.
+ */
 static struct ieee80211_channel *
 cfg80211_get_bss_channel(struct wiphy *wiphy, const u8 *ie, size_t ielen,
-			 struct ieee80211_channel *channel)
+			 struct ieee80211_channel *channel,
+			 enum nl80211_bss_scan_width scan_width)
 {
 	const u8 *tmp;
 	u32 freq;
 	int channel_number = -1;
+	struct ieee80211_channel *alt_channel;
 
 	tmp = cfg80211_find_ie(WLAN_EID_DS_PARAMS, ie, ielen);
 	if (tmp && tmp[1] == 1) {
@@ -1078,16 +1088,45 @@ cfg80211_get_bss_channel(struct wiphy *wiphy, const u8 *ie, size_t ielen,
 		}
 	}
 
-	if (channel_number < 0)
+	if (channel_number < 0) {
+		/* No channel information in frame payload */
 		return channel;
+	}
 
 	freq = ieee80211_channel_to_frequency(channel_number, channel->band);
-	channel = ieee80211_get_channel(wiphy, freq);
-	if (!channel)
-		return NULL;
-	if (channel->flags & IEEE80211_CHAN_DISABLED)
+	alt_channel = ieee80211_get_channel(wiphy, freq);
+	if (!alt_channel) {
+		if (channel->band == NL80211_BAND_2GHZ) {
+			/*
+			 * Better not allow unexpected channels when that could
+			 * be going beyond the 1-11 range (e.g., discovering
+			 * BSS on channel 12 when radio is configured for
+			 * channel 11.
+			 */
+			return NULL;
+		}
+
+		/* No match for the payload channel number - ignore it */
+		return channel;
+	}
+
+	if (scan_width == NL80211_BSS_CHAN_WIDTH_10 ||
+	    scan_width == NL80211_BSS_CHAN_WIDTH_5) {
+		/*
+		 * Ignore channel number in 5 and 10 MHz channels where there
+		 * may not be an n:1 or 1:n mapping between frequencies and
+		 * channel numbers.
+		 */
+		return channel;
+	}
+
+	/*
+	 * Use the channel determined through the payload channel number
+	 * instead of the RX channel reported by the driver.
+	 */
+	if (alt_channel->flags & IEEE80211_CHAN_DISABLED)
 		return NULL;
-	return channel;
+	return alt_channel;
 }
 
 /* Returned bss is reference counted and must be cleaned up appropriately. */
@@ -1112,7 +1151,8 @@ cfg80211_inform_bss_data(struct wiphy *wiphy,
 		    (data->signal < 0 || data->signal > 100)))
 		return NULL;
 
-	channel = cfg80211_get_bss_channel(wiphy, ie, ielen, data->chan);
+	channel = cfg80211_get_bss_channel(wiphy, ie, ielen, data->chan,
+					   data->scan_width);
 	if (!channel)
 		return NULL;
 
@@ -1210,7 +1250,7 @@ cfg80211_inform_bss_frame_data(struct wiphy *wiphy,
 		return NULL;
 
 	channel = cfg80211_get_bss_channel(wiphy, mgmt->u.beacon.variable,
-					   ielen, data->chan);
+					   ielen, data->chan, data->scan_width);
 	if (!channel)
 		return NULL;
 
diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c
index b89c9c7f8c5c..be3520e429c9 100644
--- a/net/xfrm/xfrm_input.c
+++ b/net/xfrm/xfrm_input.c
@@ -458,6 +458,7 @@ resume:
 			XFRM_INC_STATS(net, LINUX_MIB_XFRMINHDRERROR);
 			goto drop;
 		}
+		crypto_done = false;
 	} while (!err);
 
 	err = xfrm_rcv_cb(skb, family, x->type->proto, 0);
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index 2d42cb0c94b8..4ae87c5ce2e3 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -100,6 +100,10 @@ static int xfrm_output_one(struct sk_buff *skb, int err)
 		spin_unlock_bh(&x->lock);
 
 		skb_dst_force(skb);
+		if (!skb_dst(skb)) {
+			XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTERROR);
+			goto error_nolock;
+		}
 
 		if (xfrm_offload(skb)) {
 			x->type_offload->encap(x, skb);
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 3110c3fbee20..f094d4b3520d 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2491,6 +2491,10 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family)
 	}
 
 	skb_dst_force(skb);
+	if (!skb_dst(skb)) {
+		XFRM_INC_STATS(net, LINUX_MIB_XFRMFWDHDRERROR);
+		return 0;
+	}
 
 	dst = xfrm_lookup(net, skb_dst(skb), &fl, NULL, XFRM_LOOKUP_QUEUE);
 	if (IS_ERR(dst)) {
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 4791aa8b8185..df7ca2dabc48 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -151,10 +151,16 @@ static int verify_newsa_info(struct xfrm_usersa_info *p,
 	err = -EINVAL;
 	switch (p->family) {
 	case AF_INET:
+		if (p->sel.prefixlen_d > 32 || p->sel.prefixlen_s > 32)
+			goto out;
+
 		break;
 
 	case AF_INET6:
 #if IS_ENABLED(CONFIG_IPV6)
+		if (p->sel.prefixlen_d > 128 || p->sel.prefixlen_s > 128)
+			goto out;
+
 		break;
 #else
 		err = -EAFNOSUPPORT;
@@ -1396,10 +1402,16 @@ static int verify_newpolicy_info(struct xfrm_userpolicy_info *p)
 
 	switch (p->sel.family) {
 	case AF_INET:
+		if (p->sel.prefixlen_d > 32 || p->sel.prefixlen_s > 32)
+			return -EINVAL;
+
 		break;
 
 	case AF_INET6:
 #if IS_ENABLED(CONFIG_IPV6)
+		if (p->sel.prefixlen_d > 128 || p->sel.prefixlen_s > 128)
+			return -EINVAL;
+
 		break;
 #else
 		return  -EAFNOSUPPORT;
@@ -1480,6 +1492,9 @@ static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family)
 		    (ut[i].family != prev_family))
 			return -EINVAL;
 
+		if (ut[i].mode >= XFRM_MODE_MAX)
+			return -EINVAL;
+
 		prev_family = ut[i].family;
 
 		switch (ut[i].family) {