Merge tag 'net-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking changes from Jakub Kicinski:
 "WiFi 7 and sendpage changes are the biggest pieces of work for this
  release. The latter will definitely require fixes but I think that we
  got it to a reasonable point.

  Core:

   - Rework the sendpage & splice implementations

     Instead of feeding data into sockets page by page extend sendmsg
     handlers to support taking a reference on the data, controlled by a
     new flag called MSG_SPLICE_PAGES

     Rework the handling of unexpected-end-of-file to invoke an
     additional callback instead of trying to predict what the right
     combination of MORE/NOTLAST flags is

     Remove the MSG_SENDPAGE_NOTLAST flag completely

   - Implement SCM_PIDFD, a new type of CMSG type analogous to
     SCM_CREDENTIALS, but it contains pidfd instead of plain pid

   - Enable socket busy polling with CONFIG_RT

   - Improve reliability and efficiency of reporting for ref_tracker

   - Auto-generate a user space C library for various Netlink families

  Protocols:

   - Allow TCP to shrink the advertised window when necessary, prevent
     sk_rcvbuf auto-tuning from growing the window all the way up to
     tcp_rmem[2]

   - Use per-VMA locking for "page-flipping" TCP receive zerocopy

   - Prepare TCP for device-to-device data transfers, by making sure
     that payloads are always attached to skbs as page frags

   - Make the backoff time for the first N TCP SYN retransmissions
     linear. Exponential backoff is unnecessarily conservative

   - Create a new MPTCP getsockopt to retrieve all info
     (MPTCP_FULL_INFO)

   - Avoid waking up applications using TLS sockets until we have a full
     record

   - Allow using kernel memory for protocol ioctl callbacks, paving the
     way to issuing ioctls over io_uring

   - Add nolocalbypass option to VxLAN, forcing packets to be fully
     encapsulated even if they are destined for a local IP address

   - Make TCPv4 use consistent hash in TIME_WAIT and SYN_RECV. Ensure
     in-kernel ECMP implementation (e.g. Open vSwitch) select the same
     link for all packets. Support L4 symmetric hashing in Open vSwitch

   - PPPoE: make number of hash bits configurable

   - Allow DNS to be overwritten by DHCPACK in the in-kernel DHCP client
     (ipconfig)

   - Add layer 2 miss indication and filtering, allowing higher layers
     (e.g. ACL filters) to make forwarding decisions based on whether
     packet matched forwarding state in lower devices (bridge)

   - Support matching on Connectivity Fault Management (CFM) packets

   - Hide the "link becomes ready" IPv6 messages by demoting their
     printk level to debug

   - HSR: don't enable promiscuous mode if device offloads the proto

   - Support active scanning in IEEE 802.15.4

   - Continue work on Multi-Link Operation for WiFi 7

  BPF:

   - Add precision propagation for subprogs and callbacks. This allows
     maintaining verification efficiency when subprograms are used, or
     in fact passing the verifier at all for complex programs,
     especially those using open-coded iterators

   - Improve BPF's {g,s}setsockopt() length handling. Previously BPF
     assumed the length is always equal to the amount of written data.
     But some protos allow passing a NULL buffer to discover what the
     output buffer *should* be, without writing anything

   - Accept dynptr memory as memory arguments passed to helpers

   - Add routing table ID to bpf_fib_lookup BPF helper

   - Support O_PATH FDs in BPF_OBJ_PIN and BPF_OBJ_GET commands

   - Drop bpf_capable() check in BPF_MAP_FREEZE command (used to mark
     maps as read-only)

   - Show target_{obj,btf}_id in tracing link fdinfo

   - Addition of several new kfuncs (most of the names are
     self-explanatory):
      - Add a set of new dynptr kfuncs: bpf_dynptr_adjust(),
        bpf_dynptr_is_null(), bpf_dynptr_is_rdonly(), bpf_dynptr_size()
        and bpf_dynptr_clone().
      - bpf_task_under_cgroup()
      - bpf_sock_destroy() - force closing sockets
      - bpf_cpumask_first_and(), rework bpf_cpumask_any*() kfuncs

  Netfilter:

   - Relax set/map validation checks in nf_tables. Allow checking
     presence of an entry in a map without using the value

   - Increase ip_vs_conn_tab_bits range for 64BIT builds

   - Allow updating size of a set

   - Improve NAT tuple selection when connection is closing

  Driver API:

   - Integrate netdev with LED subsystem, to allow configuring HW
     "offloaded" blinking of LEDs based on link state and activity
     (i.e. packets coming in and out)

   - Support configuring rate selection pins of SFP modules

   - Factor Clause 73 auto-negotiation code out of the drivers, provide
     common helper routines

   - Add more fool-proof helpers for managing lifetime of MDIO devices
     associated with the PCS layer

   - Allow drivers to report advanced statistics related to Time Aware
     scheduler offload (taprio)

   - Allow opting out of VF statistics in link dump, to allow more VFs
     to fit into the message

   - Split devlink instance and devlink port operations

  New hardware / drivers:

   - Ethernet:
      - Synopsys EMAC4 IP support (stmmac)
      - Marvell 88E6361 8 port (5x1GE + 3x2.5GE) switches
      - Marvell 88E6250 7 port switches
      - Microchip LAN8650/1 Rev.B0 PHYs
      - MediaTek MT7981/MT7988 built-in 1GE PHY driver

   - WiFi:
      - Realtek RTL8192FU, 2.4 GHz, b/g/n mode, 2T2R, 300 Mbps
      - Realtek RTL8723DS (SDIO variant)
      - Realtek RTL8851BE

   - CAN:
      - Fintek F81604

  Drivers:

   - Ethernet NICs:
      - Intel (100G, ice):
         - support dynamic interrupt allocation
         - use meta data match instead of VF MAC addr on slow-path
      - nVidia/Mellanox:
         - extend link aggregation to handle 4, rather than just 2 ports
         - spawn sub-functions without any features by default
      - OcteonTX2:
         - support HTB (Tx scheduling/QoS) offload
         - make RSS hash generation configurable
         - support selecting Rx queue using TC filters
      - Wangxun (ngbe/txgbe):
         - add basic Tx/Rx packet offloads
         - add phylink support (SFP/PCS control)
      - Freescale/NXP (enetc):
         - report TAPRIO packet statistics
      - Solarflare/AMD:
         - support matching on IP ToS and UDP source port of outer
           header
         - VxLAN and GENEVE tunnel encapsulation over IPv4 or IPv6
         - add devlink dev info support for EF10

   - Virtual NICs:
      - Microsoft vNIC:
         - size the Rx indirection table based on requested
           configuration
         - support VLAN tagging
      - Amazon vNIC:
         - try to reuse Rx buffers if not fully consumed, useful for ARM
           servers running with 16kB pages
      - Google vNIC:
         - support TCP segmentation of >64kB frames

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - enable USXGMII (88E6191X)
      - Microchip:
         - lan966x: add support for Egress Stage 0 ACL engine
         - lan966x: support mapping packet priority to internal switch
           priority (based on PCP or DSCP)

   - Ethernet PHYs:
      - Broadcom PHYs:
         - support for Wake-on-LAN for BCM54210E/B50212E
         - report LPI counter
      - Microsemi PHYs: support RGMII delay configuration (VSC85xx)
      - Micrel PHYs: receive timestamp in the frame (LAN8841)
      - Realtek PHYs: support optional external PHY clock
      - Altera TSE PCS: merge the driver into Lynx PCS which it is a
        variant of

   - CAN: Kvaser PCIEcan:
      - support packet timestamping

   - WiFi:
      - Intel (iwlwifi):
         - major update for new firmware and Multi-Link Operation (MLO)
         - configuration rework to drop test devices and split the
           different families
         - support for segmented PNVM images and power tables
         - new vendor entries for PPAG (platform antenna gain) feature
      - Qualcomm 802.11ax (ath11k):
         - Multiple Basic Service Set Identifier (MBSSID) and Enhanced
           MBSSID Advertisement (EMA) support in AP mode
         - support factory test mode
      - RealTek (rtw89):
         - add RSSI based antenna diversity
         - support U-NII-4 channels on 5 GHz band
      - RealTek (rtl8xxxu):
         - AP mode support for 8188f
         - support USB RX aggregation for the newer chips"

* tag 'net-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1602 commits)
  net: scm: introduce and use scm_recv_unix helper
  af_unix: Skip SCM_PIDFD if scm->pid is NULL.
  net: lan743x: Simplify comparison
  netlink: Add __sock_i_ino() for __netlink_diag_dump().
  net: dsa: avoid suspicious RCU usage for synced VLAN-aware MAC addresses
  Revert "af_unix: Call scm_recv() only after scm_set_cred()."
  phylink: ReST-ify the phylink_pcs_neg_mode() kdoc
  libceph: Partially revert changes to support MSG_SPLICE_PAGES
  net: phy: mscc: fix packet loss due to RGMII delays
  net: mana: use vmalloc_array and vcalloc
  net: enetc: use vmalloc_array and vcalloc
  ionic: use vmalloc_array and vcalloc
  pds_core: use vmalloc_array and vcalloc
  gve: use vmalloc_array and vcalloc
  octeon_ep: use vmalloc_array and vcalloc
  net: usb: qmi_wwan: add u-blox 0x1312 composition
  perf trace: fix MSG_SPLICE_PAGES build error
  ipvlan: Fix return value of ipvlan_queue_xmit()
  netfilter: nf_tables: fix underflow in chain reference counter
  netfilter: nf_tables: unbind non-anonymous set if rule construction fails
  ...

1 files changed, 141 insertions, 33 deletions

diff --git a/net/wireless/core.c b/net/wireless/core.c
index b3ec9eaec36b..25bc2e50a061 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -129,6 +129,7 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
 	int result;
 
 	ASSERT_RTNL();
+	lockdep_assert_wiphy(&rdev->wiphy);
 
 	/* Ignore nop renames */
 	if (strcmp(newname, wiphy_name(&rdev->wiphy)) == 0)
@@ -195,6 +196,8 @@ int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
 			continue;
 		nl80211_notify_iface(rdev, wdev, NL80211_CMD_DEL_INTERFACE);
 	}
+
+	wiphy_lock(&rdev->wiphy);
 	nl80211_notify_wiphy(rdev, NL80211_CMD_DEL_WIPHY);
 
 	wiphy_net_set(&rdev->wiphy, net);
@@ -203,6 +206,8 @@ int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
 	WARN_ON(err);
 
 	nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
+	wiphy_unlock(&rdev->wiphy);
+
 	list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
 		if (!wdev->netdev)
 			continue;
@@ -360,7 +365,8 @@ static void cfg80211_destroy_iface_wk(struct work_struct *work)
 	rtnl_unlock();
 }
 
-static void cfg80211_sched_scan_stop_wk(struct work_struct *work)
+static void cfg80211_sched_scan_stop_wk(struct wiphy *wiphy,
+					struct wiphy_work *work)
 {
 	struct cfg80211_registered_device *rdev;
 	struct cfg80211_sched_scan_request *req, *tmp;
@@ -368,12 +374,10 @@ static void cfg80211_sched_scan_stop_wk(struct work_struct *work)
 	rdev = container_of(work, struct cfg80211_registered_device,
 			   sched_scan_stop_wk);
 
-	wiphy_lock(&rdev->wiphy);
 	list_for_each_entry_safe(req, tmp, &rdev->sched_scan_req_list, list) {
 		if (req->nl_owner_dead)
 			cfg80211_stop_sched_scan_req(rdev, req, false);
 	}
-	wiphy_unlock(&rdev->wiphy);
 }
 
 static void cfg80211_propagate_radar_detect_wk(struct work_struct *work)
@@ -408,6 +412,34 @@ static void cfg80211_propagate_cac_done_wk(struct work_struct *work)
 	rtnl_unlock();
 }
 
+static void cfg80211_wiphy_work(struct work_struct *work)
+{
+	struct cfg80211_registered_device *rdev;
+	struct wiphy_work *wk;
+
+	rdev = container_of(work, struct cfg80211_registered_device, wiphy_work);
+
+	wiphy_lock(&rdev->wiphy);
+	if (rdev->suspended)
+		goto out;
+
+	spin_lock_irq(&rdev->wiphy_work_lock);
+	wk = list_first_entry_or_null(&rdev->wiphy_work_list,
+				      struct wiphy_work, entry);
+	if (wk) {
+		list_del_init(&wk->entry);
+		if (!list_empty(&rdev->wiphy_work_list))
+			schedule_work(work);
+		spin_unlock_irq(&rdev->wiphy_work_lock);
+
+		wk->func(&rdev->wiphy, wk);
+	} else {
+		spin_unlock_irq(&rdev->wiphy_work_lock);
+	}
+out:
+	wiphy_unlock(&rdev->wiphy);
+}
+
 /* exported functions */
 
 struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv,
@@ -495,7 +527,7 @@ use_default_name:
 	spin_lock_init(&rdev->bss_lock);
 	INIT_LIST_HEAD(&rdev->bss_list);
 	INIT_LIST_HEAD(&rdev->sched_scan_req_list);
-	INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done);
+	wiphy_work_init(&rdev->scan_done_wk, __cfg80211_scan_done);
 	INIT_DELAYED_WORK(&rdev->dfs_update_channels_wk,
 			  cfg80211_dfs_channels_update_work);
 #ifdef CONFIG_CFG80211_WEXT
@@ -508,7 +540,7 @@ use_default_name:
 	device_enable_async_suspend(&rdev->wiphy.dev);
 
 	INIT_WORK(&rdev->destroy_work, cfg80211_destroy_iface_wk);
-	INIT_WORK(&rdev->sched_scan_stop_wk, cfg80211_sched_scan_stop_wk);
+	wiphy_work_init(&rdev->sched_scan_stop_wk, cfg80211_sched_scan_stop_wk);
 	INIT_WORK(&rdev->sched_scan_res_wk, cfg80211_sched_scan_results_wk);
 	INIT_WORK(&rdev->propagate_radar_detect_wk,
 		  cfg80211_propagate_radar_detect_wk);
@@ -533,6 +565,9 @@ use_default_name:
 		return NULL;
 	}
 
+	INIT_WORK(&rdev->wiphy_work, cfg80211_wiphy_work);
+	INIT_LIST_HEAD(&rdev->wiphy_work_list);
+	spin_lock_init(&rdev->wiphy_work_lock);
 	INIT_WORK(&rdev->rfkill_block, cfg80211_rfkill_block_work);
 	INIT_WORK(&rdev->conn_work, cfg80211_conn_work);
 	INIT_WORK(&rdev->event_work, cfg80211_event_work);
@@ -721,22 +756,6 @@ int wiphy_register(struct wiphy *wiphy)
 			return -EINVAL;
 	}
 
-	/*
-	 * if a wiphy has unsupported modes for regulatory channel enforcement,
-	 * opt-out of enforcement checking
-	 */
-	if (wiphy->interface_modes & ~(BIT(NL80211_IFTYPE_STATION) |
-				       BIT(NL80211_IFTYPE_P2P_CLIENT) |
-				       BIT(NL80211_IFTYPE_AP) |
-				       BIT(NL80211_IFTYPE_MESH_POINT) |
-				       BIT(NL80211_IFTYPE_P2P_GO) |
-				       BIT(NL80211_IFTYPE_ADHOC) |
-				       BIT(NL80211_IFTYPE_P2P_DEVICE) |
-				       BIT(NL80211_IFTYPE_NAN) |
-				       BIT(NL80211_IFTYPE_AP_VLAN) |
-				       BIT(NL80211_IFTYPE_MONITOR)))
-		wiphy->regulatory_flags |= REGULATORY_IGNORE_STALE_KICKOFF;
-
 	if (WARN_ON((wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) &&
 		    (wiphy->regulatory_flags &
 					(REGULATORY_CUSTOM_REG |
@@ -941,8 +960,10 @@ int wiphy_register(struct wiphy *wiphy)
 	rdev->wiphy.features |= NL80211_FEATURE_SCAN_FLUSH;
 
 	rtnl_lock();
+	wiphy_lock(&rdev->wiphy);
 	res = device_add(&rdev->wiphy.dev);
 	if (res) {
+		wiphy_unlock(&rdev->wiphy);
 		rtnl_unlock();
 		return res;
 	}
@@ -956,6 +977,7 @@ int wiphy_register(struct wiphy *wiphy)
 
 	cfg80211_debugfs_rdev_add(rdev);
 	nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
+	wiphy_unlock(&rdev->wiphy);
 
 	/* set up regulatory info */
 	wiphy_regulatory_register(wiphy);
@@ -1027,6 +1049,31 @@ void wiphy_rfkill_start_polling(struct wiphy *wiphy)
 }
 EXPORT_SYMBOL(wiphy_rfkill_start_polling);
 
+void cfg80211_process_wiphy_works(struct cfg80211_registered_device *rdev)
+{
+	unsigned int runaway_limit = 100;
+	unsigned long flags;
+
+	lockdep_assert_held(&rdev->wiphy.mtx);
+
+	spin_lock_irqsave(&rdev->wiphy_work_lock, flags);
+	while (!list_empty(&rdev->wiphy_work_list)) {
+		struct wiphy_work *wk;
+
+		wk = list_first_entry(&rdev->wiphy_work_list,
+				      struct wiphy_work, entry);
+		list_del_init(&wk->entry);
+		spin_unlock_irqrestore(&rdev->wiphy_work_lock, flags);
+
+		wk->func(&rdev->wiphy, wk);
+
+		spin_lock_irqsave(&rdev->wiphy_work_lock, flags);
+		if (WARN_ON(--runaway_limit == 0))
+			INIT_LIST_HEAD(&rdev->wiphy_work_list);
+	}
+	spin_unlock_irqrestore(&rdev->wiphy_work_lock, flags);
+}
+
 void wiphy_unregister(struct wiphy *wiphy)
 {
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
@@ -1065,25 +1112,29 @@ void wiphy_unregister(struct wiphy *wiphy)
 	cfg80211_rdev_list_generation++;
 	device_del(&rdev->wiphy.dev);
 
+#ifdef CONFIG_PM
+	if (rdev->wiphy.wowlan_config && rdev->ops->set_wakeup)
+		rdev_set_wakeup(rdev, false);
+#endif
+
+	/* surely nothing is reachable now, clean up work */
+	cfg80211_process_wiphy_works(rdev);
 	wiphy_unlock(&rdev->wiphy);
 	rtnl_unlock();
 
-	flush_work(&rdev->scan_done_wk);
+	/* this has nothing to do now but make sure it's gone */
+	cancel_work_sync(&rdev->wiphy_work);
+
 	cancel_work_sync(&rdev->conn_work);
 	flush_work(&rdev->event_work);
 	cancel_delayed_work_sync(&rdev->dfs_update_channels_wk);
 	cancel_delayed_work_sync(&rdev->background_cac_done_wk);
 	flush_work(&rdev->destroy_work);
-	flush_work(&rdev->sched_scan_stop_wk);
 	flush_work(&rdev->propagate_radar_detect_wk);
 	flush_work(&rdev->propagate_cac_done_wk);
 	flush_work(&rdev->mgmt_registrations_update_wk);
 	flush_work(&rdev->background_cac_abort_wk);
 
-#ifdef CONFIG_PM
-	if (rdev->wiphy.wowlan_config && rdev->ops->set_wakeup)
-		rdev_set_wakeup(rdev, false);
-#endif
 	cfg80211_rdev_free_wowlan(rdev);
 	cfg80211_rdev_free_coalesce(rdev);
 }
@@ -1145,8 +1196,6 @@ static void _cfg80211_unregister_wdev(struct wireless_dev *wdev,
 	ASSERT_RTNL();
 	lockdep_assert_held(&rdev->wiphy.mtx);
 
-	flush_work(&wdev->pmsr_free_wk);
-
 	nl80211_notify_iface(rdev, wdev, NL80211_CMD_DEL_INTERFACE);
 
 	wdev->registered = false;
@@ -1178,10 +1227,6 @@ static void _cfg80211_unregister_wdev(struct wireless_dev *wdev,
 	kfree_sensitive(wdev->wext.keys);
 	wdev->wext.keys = NULL;
 #endif
-	/* only initialized if we have a netdev */
-	if (wdev->netdev)
-		flush_work(&wdev->disconnect_wk);
-
 	cfg80211_cqm_config_free(wdev);
 
 	/*
@@ -1455,6 +1500,9 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
 		cfg80211_leave(rdev, wdev);
 		cfg80211_remove_links(wdev);
 		wiphy_unlock(&rdev->wiphy);
+		/* since we just did cfg80211_leave() nothing to do there */
+		cancel_work_sync(&wdev->disconnect_wk);
+		cancel_work_sync(&wdev->pmsr_free_wk);
 		break;
 	case NETDEV_DOWN:
 		wiphy_lock(&rdev->wiphy);
@@ -1564,6 +1612,66 @@ static struct pernet_operations cfg80211_pernet_ops = {
 	.exit = cfg80211_pernet_exit,
 };
 
+void wiphy_work_queue(struct wiphy *wiphy, struct wiphy_work *work)
+{
+	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+	unsigned long flags;
+
+	spin_lock_irqsave(&rdev->wiphy_work_lock, flags);
+	if (list_empty(&work->entry))
+		list_add_tail(&work->entry, &rdev->wiphy_work_list);
+	spin_unlock_irqrestore(&rdev->wiphy_work_lock, flags);
+
+	schedule_work(&rdev->wiphy_work);
+}
+EXPORT_SYMBOL_GPL(wiphy_work_queue);
+
+void wiphy_work_cancel(struct wiphy *wiphy, struct wiphy_work *work)
+{
+	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+	unsigned long flags;
+
+	lockdep_assert_held(&wiphy->mtx);
+
+	spin_lock_irqsave(&rdev->wiphy_work_lock, flags);
+	if (!list_empty(&work->entry))
+		list_del_init(&work->entry);
+	spin_unlock_irqrestore(&rdev->wiphy_work_lock, flags);
+}
+EXPORT_SYMBOL_GPL(wiphy_work_cancel);
+
+void wiphy_delayed_work_timer(struct timer_list *t)
+{
+	struct wiphy_delayed_work *dwork = from_timer(dwork, t, timer);
+
+	wiphy_work_queue(dwork->wiphy, &dwork->work);
+}
+EXPORT_SYMBOL(wiphy_delayed_work_timer);
+
+void wiphy_delayed_work_queue(struct wiphy *wiphy,
+			      struct wiphy_delayed_work *dwork,
+			      unsigned long delay)
+{
+	if (!delay) {
+		wiphy_work_queue(wiphy, &dwork->work);
+		return;
+	}
+
+	dwork->wiphy = wiphy;
+	mod_timer(&dwork->timer, jiffies + delay);
+}
+EXPORT_SYMBOL_GPL(wiphy_delayed_work_queue);
+
+void wiphy_delayed_work_cancel(struct wiphy *wiphy,
+			       struct wiphy_delayed_work *dwork)
+{
+	lockdep_assert_held(&wiphy->mtx);
+
+	del_timer_sync(&dwork->timer);
+	wiphy_work_cancel(wiphy, &dwork->work);
+}
+EXPORT_SYMBOL_GPL(wiphy_delayed_work_cancel);
+
 static int __init cfg80211_init(void)
 {
 	int err;