Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 457 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_lag.c b/drivers/net/ethernet/intel/ice/ice_lag.c
new file mode 100644
index 000000000..ee5b36941
--- /dev/null
+++ b/drivers/net/ethernet/intel/ice/ice_lag.c
@@ -0,0 +1,457 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2018-2021, Intel Corporation. */
+
+/* Link Aggregation code */
+
+#include "ice.h"
+#include "ice_lag.h"
+
+/**
+ * ice_lag_nop_handler - no-op Rx handler to disable LAG
+ * @pskb: pointer to skb pointer
+ */
+rx_handler_result_t ice_lag_nop_handler(struct sk_buff __always_unused **pskb)
+{
+	return RX_HANDLER_PASS;
+}
+
+/**
+ * ice_lag_set_primary - set PF LAG state as Primary
+ * @lag: LAG info struct
+ */
+static void ice_lag_set_primary(struct ice_lag *lag)
+{
+	struct ice_pf *pf = lag->pf;
+
+	if (!pf)
+		return;
+
+	if (lag->role != ICE_LAG_UNSET && lag->role != ICE_LAG_BACKUP) {
+		dev_warn(ice_pf_to_dev(pf), "%s: Attempt to be Primary, but incompatible state.\n",
+			 netdev_name(lag->netdev));
+		return;
+	}
+
+	lag->role = ICE_LAG_PRIMARY;
+}
+
+/**
+ * ice_lag_set_backup - set PF LAG state to Backup
+ * @lag: LAG info struct
+ */
+static void ice_lag_set_backup(struct ice_lag *lag)
+{
+	struct ice_pf *pf = lag->pf;
+
+	if (!pf)
+		return;
+
+	if (lag->role != ICE_LAG_UNSET && lag->role != ICE_LAG_PRIMARY) {
+		dev_dbg(ice_pf_to_dev(pf), "%s: Attempt to be Backup, but incompatible state\n",
+			netdev_name(lag->netdev));
+		return;
+	}
+
+	lag->role = ICE_LAG_BACKUP;
+}
+
+/**
+ * ice_display_lag_info - print LAG info
+ * @lag: LAG info struct
+ */
+static void ice_display_lag_info(struct ice_lag *lag)
+{
+	const char *name, *peer, *upper, *role, *bonded, *primary;
+	struct device *dev = &lag->pf->pdev->dev;
+
+	name = lag->netdev ? netdev_name(lag->netdev) : "unset";
+	peer = lag->peer_netdev ? netdev_name(lag->peer_netdev) : "unset";
+	upper = lag->upper_netdev ? netdev_name(lag->upper_netdev) : "unset";
+	primary = lag->primary ? "TRUE" : "FALSE";
+	bonded = lag->bonded ? "BONDED" : "UNBONDED";
+
+	switch (lag->role) {
+	case ICE_LAG_NONE:
+		role = "NONE";
+		break;
+	case ICE_LAG_PRIMARY:
+		role = "PRIMARY";
+		break;
+	case ICE_LAG_BACKUP:
+		role = "BACKUP";
+		break;
+	case ICE_LAG_UNSET:
+		role = "UNSET";
+		break;
+	default:
+		role = "ERROR";
+	}
+
+	dev_dbg(dev, "%s %s, peer:%s, upper:%s, role:%s, primary:%s\n", name,
+		bonded, peer, upper, role, primary);
+}
+
+/**
+ * ice_lag_info_event - handle NETDEV_BONDING_INFO event
+ * @lag: LAG info struct
+ * @ptr: opaque data pointer
+ *
+ * ptr is to be cast to (netdev_notifier_bonding_info *)
+ */
+static void ice_lag_info_event(struct ice_lag *lag, void *ptr)
+{
+	struct netdev_notifier_bonding_info *info;
+	struct netdev_bonding_info *bonding_info;
+	struct net_device *event_netdev;
+	const char *lag_netdev_name;
+
+	event_netdev = netdev_notifier_info_to_dev(ptr);
+	info = ptr;
+	lag_netdev_name = netdev_name(lag->netdev);
+	bonding_info = &info->bonding_info;
+
+	if (event_netdev != lag->netdev || !lag->bonded || !lag->upper_netdev)
+		return;
+
+	if (bonding_info->master.bond_mode != BOND_MODE_ACTIVEBACKUP) {
+		netdev_dbg(lag->netdev, "Bonding event recv, but mode not active/backup\n");
+		goto lag_out;
+	}
+
+	if (strcmp(bonding_info->slave.slave_name, lag_netdev_name)) {
+		netdev_dbg(lag->netdev, "Bonding event recv, but secondary info not for us\n");
+		goto lag_out;
+	}
+
+	if (bonding_info->slave.state)
+		ice_lag_set_backup(lag);
+	else
+		ice_lag_set_primary(lag);
+
+lag_out:
+	ice_display_lag_info(lag);
+}
+
+/**
+ * ice_lag_link - handle LAG link event
+ * @lag: LAG info struct
+ * @info: info from the netdev notifier
+ */
+static void
+ice_lag_link(struct ice_lag *lag, struct netdev_notifier_changeupper_info *info)
+{
+	struct net_device *netdev_tmp, *upper = info->upper_dev;
+	struct ice_pf *pf = lag->pf;
+	int peers = 0;
+
+	if (lag->bonded)
+		dev_warn(ice_pf_to_dev(pf), "%s Already part of a bond\n",
+			 netdev_name(lag->netdev));
+
+	rcu_read_lock();
+	for_each_netdev_in_bond_rcu(upper, netdev_tmp)
+		peers++;
+	rcu_read_unlock();
+
+	if (lag->upper_netdev != upper) {
+		dev_hold(upper);
+		lag->upper_netdev = upper;
+	}
+
+	ice_clear_sriov_cap(pf);
+	ice_clear_rdma_cap(pf);
+
+	lag->bonded = true;
+	lag->role = ICE_LAG_UNSET;
+
+	/* if this is the first element in an LAG mark as primary */
+	lag->primary = !!(peers == 1);
+}
+
+/**
+ * ice_lag_unlink - handle unlink event
+ * @lag: LAG info struct
+ * @info: info from netdev notification
+ */
+static void
+ice_lag_unlink(struct ice_lag *lag,
+	       struct netdev_notifier_changeupper_info *info)
+{
+	struct net_device *netdev_tmp, *upper = info->upper_dev;
+	struct ice_pf *pf = lag->pf;
+	bool found = false;
+
+	if (!lag->bonded) {
+		netdev_dbg(lag->netdev, "bonding unlink event on non-LAG netdev\n");
+		return;
+	}
+
+	/* determine if we are in the new LAG config or not */
+	rcu_read_lock();
+	for_each_netdev_in_bond_rcu(upper, netdev_tmp) {
+		if (netdev_tmp == lag->netdev) {
+			found = true;
+			break;
+		}
+	}
+	rcu_read_unlock();
+
+	if (found)
+		return;
+
+	if (lag->upper_netdev) {
+		dev_put(lag->upper_netdev);
+		lag->upper_netdev = NULL;
+	}
+
+	lag->peer_netdev = NULL;
+	ice_set_sriov_cap(pf);
+	ice_set_rdma_cap(pf);
+	lag->bonded = false;
+	lag->role = ICE_LAG_NONE;
+}
+
+/**
+ * ice_lag_unregister - handle netdev unregister events
+ * @lag: LAG info struct
+ * @netdev: netdev reporting the event
+ */
+static void ice_lag_unregister(struct ice_lag *lag, struct net_device *netdev)
+{
+	struct ice_pf *pf = lag->pf;
+
+	/* check to see if this event is for this netdev
+	 * check that we are in an aggregate
+	 */
+	if (netdev != lag->netdev || !lag->bonded)
+		return;
+
+	if (lag->upper_netdev) {
+		dev_put(lag->upper_netdev);
+		lag->upper_netdev = NULL;
+		ice_set_sriov_cap(pf);
+		ice_set_rdma_cap(pf);
+	}
+	/* perform some cleanup in case we come back */
+	lag->bonded = false;
+	lag->role = ICE_LAG_NONE;
+}
+
+/**
+ * ice_lag_changeupper_event - handle LAG changeupper event
+ * @lag: LAG info struct
+ * @ptr: opaque pointer data
+ *
+ * ptr is to be cast into netdev_notifier_changeupper_info
+ */
+static void ice_lag_changeupper_event(struct ice_lag *lag, void *ptr)
+{
+	struct netdev_notifier_changeupper_info *info;
+	struct net_device *netdev;
+
+	info = ptr;
+	netdev = netdev_notifier_info_to_dev(ptr);
+
+	/* not for this netdev */
+	if (netdev != lag->netdev)
+		return;
+
+	if (!info->upper_dev) {
+		netdev_dbg(netdev, "changeupper rcvd, but no upper defined\n");
+		return;
+	}
+
+	netdev_dbg(netdev, "bonding %s\n", info->linking ? "LINK" : "UNLINK");
+
+	if (!netif_is_lag_master(info->upper_dev)) {
+		netdev_dbg(netdev, "changeupper rcvd, but not primary. bail\n");
+		return;
+	}
+
+	if (info->linking)
+		ice_lag_link(lag, info);
+	else
+		ice_lag_unlink(lag, info);
+
+	ice_display_lag_info(lag);
+}
+
+/**
+ * ice_lag_changelower_event - handle LAG changelower event
+ * @lag: LAG info struct
+ * @ptr: opaque data pointer
+ *
+ * ptr to be cast to netdev_notifier_changelowerstate_info
+ */
+static void ice_lag_changelower_event(struct ice_lag *lag, void *ptr)
+{
+	struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
+
+	if (netdev != lag->netdev)
+		return;
+
+	netdev_dbg(netdev, "bonding info\n");
+
+	if (!netif_is_lag_port(netdev))
+		netdev_dbg(netdev, "CHANGELOWER rcvd, but netdev not in LAG. Bail\n");
+}
+
+/**
+ * ice_lag_event_handler - handle LAG events from netdev
+ * @notif_blk: notifier block registered by this netdev
+ * @event: event type
+ * @ptr: opaque data containing notifier event
+ */
+static int
+ice_lag_event_handler(struct notifier_block *notif_blk, unsigned long event,
+		      void *ptr)
+{
+	struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
+	struct ice_lag *lag;
+
+	lag = container_of(notif_blk, struct ice_lag, notif_block);
+
+	if (!lag->netdev)
+		return NOTIFY_DONE;
+
+	/* Check that the netdev is in the working namespace */
+	if (!net_eq(dev_net(netdev), &init_net))
+		return NOTIFY_DONE;
+
+	switch (event) {
+	case NETDEV_CHANGEUPPER:
+		ice_lag_changeupper_event(lag, ptr);
+		break;
+	case NETDEV_CHANGELOWERSTATE:
+		ice_lag_changelower_event(lag, ptr);
+		break;
+	case NETDEV_BONDING_INFO:
+		ice_lag_info_event(lag, ptr);
+		break;
+	case NETDEV_UNREGISTER:
+		ice_lag_unregister(lag, netdev);
+		break;
+	default:
+		break;
+	}
+
+	return NOTIFY_DONE;
+}
+
+/**
+ * ice_register_lag_handler - register LAG handler on netdev
+ * @lag: LAG struct
+ */
+static int ice_register_lag_handler(struct ice_lag *lag)
+{
+	struct device *dev = ice_pf_to_dev(lag->pf);
+	struct notifier_block *notif_blk;
+
+	notif_blk = &lag->notif_block;
+
+	if (!notif_blk->notifier_call) {
+		notif_blk->notifier_call = ice_lag_event_handler;
+		if (register_netdevice_notifier(notif_blk)) {
+			notif_blk->notifier_call = NULL;
+			dev_err(dev, "FAIL register LAG event handler!\n");
+			return -EINVAL;
+		}
+		dev_dbg(dev, "LAG event handler registered\n");
+	}
+	return 0;
+}
+
+/**
+ * ice_unregister_lag_handler - unregister LAG handler on netdev
+ * @lag: LAG struct
+ */
+static void ice_unregister_lag_handler(struct ice_lag *lag)
+{
+	struct device *dev = ice_pf_to_dev(lag->pf);
+	struct notifier_block *notif_blk;
+
+	notif_blk = &lag->notif_block;
+	if (notif_blk->notifier_call) {
+		unregister_netdevice_notifier(notif_blk);
+		dev_dbg(dev, "LAG event handler unregistered\n");
+	}
+}
+
+/**
+ * ice_init_lag - initialize support for LAG
+ * @pf: PF struct
+ *
+ * Alloc memory for LAG structs and initialize the elements.
+ * Memory will be freed in ice_deinit_lag
+ */
+int ice_init_lag(struct ice_pf *pf)
+{
+	struct device *dev = ice_pf_to_dev(pf);
+	struct ice_lag *lag;
+	struct ice_vsi *vsi;
+	int err;
+
+	pf->lag = kzalloc(sizeof(*lag), GFP_KERNEL);
+	if (!pf->lag)
+		return -ENOMEM;
+	lag = pf->lag;
+
+	vsi = ice_get_main_vsi(pf);
+	if (!vsi) {
+		dev_err(dev, "couldn't get main vsi, link aggregation init fail\n");
+		err = -EIO;
+		goto lag_error;
+	}
+
+	lag->pf = pf;
+	lag->netdev = vsi->netdev;
+	lag->role = ICE_LAG_NONE;
+	lag->bonded = false;
+	lag->peer_netdev = NULL;
+	lag->upper_netdev = NULL;
+	lag->notif_block.notifier_call = NULL;
+
+	err = ice_register_lag_handler(lag);
+	if (err) {
+		dev_warn(dev, "INIT LAG: Failed to register event handler\n");
+		goto lag_error;
+	}
+
+	ice_display_lag_info(lag);
+
+	dev_dbg(dev, "INIT LAG complete\n");
+	return 0;
+
+lag_error:
+	kfree(lag);
+	pf->lag = NULL;
+	return err;
+}
+
+/**
+ * ice_deinit_lag - Clean up LAG
+ * @pf: PF struct
+ *
+ * Clean up kernel LAG info and free memory
+ * This function is meant to only be called on driver remove/shutdown
+ */
+void ice_deinit_lag(struct ice_pf *pf)
+{
+	struct ice_lag *lag;
+
+	lag = pf->lag;
+
+	if (!lag)
+		return;
+
+	if (lag->pf)
+		ice_unregister_lag_handler(lag);
+
+	dev_put(lag->upper_netdev);
+
+	dev_put(lag->peer_netdev);
+
+	kfree(lag);
+
+	pf->lag = NULL;
+}