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, 1092 insertions, 0 deletions

diff --git a/drivers/net/ieee802154/mac802154_hwsim.c b/drivers/net/ieee802154/mac802154_hwsim.c
new file mode 100644
index 000000000..8445c2189
--- /dev/null
+++ b/drivers/net/ieee802154/mac802154_hwsim.c
@@ -0,0 +1,1092 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * HWSIM IEEE 802.15.4 interface
+ *
+ * (C) 2018 Mojatau, Alexander Aring <aring@mojatau.com>
+ * Copyright 2007-2012 Siemens AG
+ *
+ * Based on fakelb, original Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
+ */
+
+#include <linux/module.h>
+#include <linux/timer.h>
+#include <linux/platform_device.h>
+#include <linux/rtnetlink.h>
+#include <linux/netdevice.h>
+#include <linux/device.h>
+#include <linux/spinlock.h>
+#include <net/ieee802154_netdev.h>
+#include <net/mac802154.h>
+#include <net/cfg802154.h>
+#include <net/genetlink.h>
+#include "mac802154_hwsim.h"
+
+MODULE_DESCRIPTION("Software simulator of IEEE 802.15.4 radio(s) for mac802154");
+MODULE_LICENSE("GPL");
+
+static LIST_HEAD(hwsim_phys);
+static DEFINE_MUTEX(hwsim_phys_lock);
+
+static struct platform_device *mac802154hwsim_dev;
+
+/* MAC802154_HWSIM netlink family */
+static struct genl_family hwsim_genl_family;
+
+static int hwsim_radio_idx;
+
+enum hwsim_multicast_groups {
+	HWSIM_MCGRP_CONFIG,
+};
+
+static const struct genl_multicast_group hwsim_mcgrps[] = {
+	[HWSIM_MCGRP_CONFIG] = { .name = "config", },
+};
+
+struct hwsim_pib {
+	u8 page;
+	u8 channel;
+	struct ieee802154_hw_addr_filt filt;
+	enum ieee802154_filtering_level filt_level;
+
+	struct rcu_head rcu;
+};
+
+struct hwsim_edge_info {
+	u8 lqi;
+
+	struct rcu_head rcu;
+};
+
+struct hwsim_edge {
+	struct hwsim_phy *endpoint;
+	struct hwsim_edge_info __rcu *info;
+
+	struct list_head list;
+	struct rcu_head rcu;
+};
+
+struct hwsim_phy {
+	struct ieee802154_hw *hw;
+	u32 idx;
+
+	struct hwsim_pib __rcu *pib;
+
+	bool suspended;
+	struct list_head edges;
+
+	struct list_head list;
+};
+
+static int hwsim_add_one(struct genl_info *info, struct device *dev,
+			 bool init);
+static void hwsim_del(struct hwsim_phy *phy);
+
+static int hwsim_hw_ed(struct ieee802154_hw *hw, u8 *level)
+{
+	*level = 0xbe;
+
+	return 0;
+}
+
+static int hwsim_update_pib(struct ieee802154_hw *hw, u8 page, u8 channel,
+			    struct ieee802154_hw_addr_filt *filt,
+			    enum ieee802154_filtering_level filt_level)
+{
+	struct hwsim_phy *phy = hw->priv;
+	struct hwsim_pib *pib, *pib_old;
+
+	pib = kzalloc(sizeof(*pib), GFP_ATOMIC);
+	if (!pib)
+		return -ENOMEM;
+
+	pib_old = rtnl_dereference(phy->pib);
+
+	pib->page = page;
+	pib->channel = channel;
+	pib->filt.short_addr = filt->short_addr;
+	pib->filt.pan_id = filt->pan_id;
+	pib->filt.ieee_addr = filt->ieee_addr;
+	pib->filt.pan_coord = filt->pan_coord;
+	pib->filt_level = filt_level;
+
+	rcu_assign_pointer(phy->pib, pib);
+	kfree_rcu(pib_old, rcu);
+	return 0;
+}
+
+static int hwsim_hw_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
+{
+	struct hwsim_phy *phy = hw->priv;
+	struct hwsim_pib *pib;
+	int ret;
+
+	rcu_read_lock();
+	pib = rcu_dereference(phy->pib);
+	ret = hwsim_update_pib(hw, page, channel, &pib->filt, pib->filt_level);
+	rcu_read_unlock();
+
+	return ret;
+}
+
+static int hwsim_hw_addr_filt(struct ieee802154_hw *hw,
+			      struct ieee802154_hw_addr_filt *filt,
+			      unsigned long changed)
+{
+	struct hwsim_phy *phy = hw->priv;
+	struct hwsim_pib *pib;
+	int ret;
+
+	rcu_read_lock();
+	pib = rcu_dereference(phy->pib);
+	ret = hwsim_update_pib(hw, pib->page, pib->channel, filt, pib->filt_level);
+	rcu_read_unlock();
+
+	return ret;
+}
+
+static void hwsim_hw_receive(struct ieee802154_hw *hw, struct sk_buff *skb,
+			     u8 lqi)
+{
+	struct ieee802154_hdr hdr;
+	struct hwsim_phy *phy = hw->priv;
+	struct hwsim_pib *pib;
+
+	rcu_read_lock();
+	pib = rcu_dereference(phy->pib);
+
+	if (!pskb_may_pull(skb, 3)) {
+		dev_dbg(hw->parent, "invalid frame\n");
+		goto drop;
+	}
+
+	memcpy(&hdr, skb->data, 3);
+
+	/* Level 4 filtering: Frame fields validity */
+	if (pib->filt_level == IEEE802154_FILTERING_4_FRAME_FIELDS) {
+		/* a) Drop reserved frame types */
+		switch (mac_cb(skb)->type) {
+		case IEEE802154_FC_TYPE_BEACON:
+		case IEEE802154_FC_TYPE_DATA:
+		case IEEE802154_FC_TYPE_ACK:
+		case IEEE802154_FC_TYPE_MAC_CMD:
+			break;
+		default:
+			dev_dbg(hw->parent, "unrecognized frame type 0x%x\n",
+				mac_cb(skb)->type);
+			goto drop;
+		}
+
+		/* b) Drop reserved frame versions */
+		switch (hdr.fc.version) {
+		case IEEE802154_2003_STD:
+		case IEEE802154_2006_STD:
+		case IEEE802154_STD:
+			break;
+		default:
+			dev_dbg(hw->parent,
+				"unrecognized frame version 0x%x\n",
+				hdr.fc.version);
+			goto drop;
+		}
+
+		/* c) PAN ID constraints */
+		if ((mac_cb(skb)->dest.mode == IEEE802154_ADDR_LONG ||
+		     mac_cb(skb)->dest.mode == IEEE802154_ADDR_SHORT) &&
+		    mac_cb(skb)->dest.pan_id != pib->filt.pan_id &&
+		    mac_cb(skb)->dest.pan_id != cpu_to_le16(IEEE802154_PANID_BROADCAST)) {
+			dev_dbg(hw->parent,
+				"unrecognized PAN ID %04x\n",
+				le16_to_cpu(mac_cb(skb)->dest.pan_id));
+			goto drop;
+		}
+
+		/* d1) Short address constraints */
+		if (mac_cb(skb)->dest.mode == IEEE802154_ADDR_SHORT &&
+		    mac_cb(skb)->dest.short_addr != pib->filt.short_addr &&
+		    mac_cb(skb)->dest.short_addr != cpu_to_le16(IEEE802154_ADDR_BROADCAST)) {
+			dev_dbg(hw->parent,
+				"unrecognized short address %04x\n",
+				le16_to_cpu(mac_cb(skb)->dest.short_addr));
+			goto drop;
+		}
+
+		/* d2) Extended address constraints */
+		if (mac_cb(skb)->dest.mode == IEEE802154_ADDR_LONG &&
+		    mac_cb(skb)->dest.extended_addr != pib->filt.ieee_addr) {
+			dev_dbg(hw->parent,
+				"unrecognized long address 0x%016llx\n",
+				mac_cb(skb)->dest.extended_addr);
+			goto drop;
+		}
+
+		/* d4) Specific PAN coordinator case (no parent) */
+		if ((mac_cb(skb)->type == IEEE802154_FC_TYPE_DATA ||
+		     mac_cb(skb)->type == IEEE802154_FC_TYPE_MAC_CMD) &&
+		    mac_cb(skb)->dest.mode == IEEE802154_ADDR_NONE) {
+			dev_dbg(hw->parent,
+				"relaying is not supported\n");
+			goto drop;
+		}
+
+		/* e) Beacon frames follow specific PAN ID rules */
+		if (mac_cb(skb)->type == IEEE802154_FC_TYPE_BEACON &&
+		    pib->filt.pan_id != cpu_to_le16(IEEE802154_PANID_BROADCAST) &&
+		    mac_cb(skb)->dest.pan_id != pib->filt.pan_id) {
+			dev_dbg(hw->parent,
+				"invalid beacon PAN ID %04x\n",
+				le16_to_cpu(mac_cb(skb)->dest.pan_id));
+			goto drop;
+		}
+	}
+
+	rcu_read_unlock();
+
+	ieee802154_rx_irqsafe(hw, skb, lqi);
+
+	return;
+
+drop:
+	rcu_read_unlock();
+	kfree_skb(skb);
+}
+
+static int hwsim_hw_xmit(struct ieee802154_hw *hw, struct sk_buff *skb)
+{
+	struct hwsim_phy *current_phy = hw->priv;
+	struct hwsim_pib *current_pib, *endpoint_pib;
+	struct hwsim_edge_info *einfo;
+	struct hwsim_edge *e;
+
+	WARN_ON(current_phy->suspended);
+
+	rcu_read_lock();
+	current_pib = rcu_dereference(current_phy->pib);
+	list_for_each_entry_rcu(e, &current_phy->edges, list) {
+		/* Can be changed later in rx_irqsafe, but this is only a
+		 * performance tweak. Received radio should drop the frame
+		 * in mac802154 stack anyway... so we don't need to be
+		 * 100% of locking here to check on suspended
+		 */
+		if (e->endpoint->suspended)
+			continue;
+
+		endpoint_pib = rcu_dereference(e->endpoint->pib);
+		if (current_pib->page == endpoint_pib->page &&
+		    current_pib->channel == endpoint_pib->channel) {
+			struct sk_buff *newskb = pskb_copy(skb, GFP_ATOMIC);
+
+			einfo = rcu_dereference(e->info);
+			if (newskb)
+				hwsim_hw_receive(e->endpoint->hw, newskb, einfo->lqi);
+		}
+	}
+	rcu_read_unlock();
+
+	ieee802154_xmit_complete(hw, skb, false);
+	return 0;
+}
+
+static int hwsim_hw_start(struct ieee802154_hw *hw)
+{
+	struct hwsim_phy *phy = hw->priv;
+
+	phy->suspended = false;
+
+	return 0;
+}
+
+static void hwsim_hw_stop(struct ieee802154_hw *hw)
+{
+	struct hwsim_phy *phy = hw->priv;
+
+	phy->suspended = true;
+}
+
+static int
+hwsim_set_promiscuous_mode(struct ieee802154_hw *hw, const bool on)
+{
+	enum ieee802154_filtering_level filt_level;
+	struct hwsim_phy *phy = hw->priv;
+	struct hwsim_pib *pib;
+	int ret;
+
+	if (on)
+		filt_level = IEEE802154_FILTERING_NONE;
+	else
+		filt_level = IEEE802154_FILTERING_4_FRAME_FIELDS;
+
+	rcu_read_lock();
+	pib = rcu_dereference(phy->pib);
+	ret = hwsim_update_pib(hw, pib->page, pib->channel, &pib->filt, filt_level);
+	rcu_read_unlock();
+
+	return ret;
+}
+
+static const struct ieee802154_ops hwsim_ops = {
+	.owner = THIS_MODULE,
+	.xmit_async = hwsim_hw_xmit,
+	.ed = hwsim_hw_ed,
+	.set_channel = hwsim_hw_channel,
+	.start = hwsim_hw_start,
+	.stop = hwsim_hw_stop,
+	.set_promiscuous_mode = hwsim_set_promiscuous_mode,
+	.set_hw_addr_filt = hwsim_hw_addr_filt,
+};
+
+static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
+{
+	return hwsim_add_one(info, &mac802154hwsim_dev->dev, false);
+}
+
+static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
+{
+	struct hwsim_phy *phy, *tmp;
+	s64 idx = -1;
+
+	if (!info->attrs[MAC802154_HWSIM_ATTR_RADIO_ID])
+		return -EINVAL;
+
+	idx = nla_get_u32(info->attrs[MAC802154_HWSIM_ATTR_RADIO_ID]);
+
+	mutex_lock(&hwsim_phys_lock);
+	list_for_each_entry_safe(phy, tmp, &hwsim_phys, list) {
+		if (idx == phy->idx) {
+			hwsim_del(phy);
+			mutex_unlock(&hwsim_phys_lock);
+			return 0;
+		}
+	}
+	mutex_unlock(&hwsim_phys_lock);
+
+	return -ENODEV;
+}
+
+static int append_radio_msg(struct sk_buff *skb, struct hwsim_phy *phy)
+{
+	struct nlattr *nl_edges, *nl_edge;
+	struct hwsim_edge_info *einfo;
+	struct hwsim_edge *e;
+	int ret;
+
+	ret = nla_put_u32(skb, MAC802154_HWSIM_ATTR_RADIO_ID, phy->idx);
+	if (ret < 0)
+		return ret;
+
+	rcu_read_lock();
+	if (list_empty(&phy->edges)) {
+		rcu_read_unlock();
+		return 0;
+	}
+
+	nl_edges = nla_nest_start_noflag(skb,
+					 MAC802154_HWSIM_ATTR_RADIO_EDGES);
+	if (!nl_edges) {
+		rcu_read_unlock();
+		return -ENOBUFS;
+	}
+
+	list_for_each_entry_rcu(e, &phy->edges, list) {
+		nl_edge = nla_nest_start_noflag(skb,
+						MAC802154_HWSIM_ATTR_RADIO_EDGE);
+		if (!nl_edge) {
+			rcu_read_unlock();
+			nla_nest_cancel(skb, nl_edges);
+			return -ENOBUFS;
+		}
+
+		ret = nla_put_u32(skb, MAC802154_HWSIM_EDGE_ATTR_ENDPOINT_ID,
+				  e->endpoint->idx);
+		if (ret < 0) {
+			rcu_read_unlock();
+			nla_nest_cancel(skb, nl_edge);
+			nla_nest_cancel(skb, nl_edges);
+			return ret;
+		}
+
+		einfo = rcu_dereference(e->info);
+		ret = nla_put_u8(skb, MAC802154_HWSIM_EDGE_ATTR_LQI,
+				 einfo->lqi);
+		if (ret < 0) {
+			rcu_read_unlock();
+			nla_nest_cancel(skb, nl_edge);
+			nla_nest_cancel(skb, nl_edges);
+			return ret;
+		}
+
+		nla_nest_end(skb, nl_edge);
+	}
+	rcu_read_unlock();
+
+	nla_nest_end(skb, nl_edges);
+
+	return 0;
+}
+
+static int hwsim_get_radio(struct sk_buff *skb, struct hwsim_phy *phy,
+			   u32 portid, u32 seq,
+			   struct netlink_callback *cb, int flags)
+{
+	void *hdr;
+	int res;
+
+	hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
+			  MAC802154_HWSIM_CMD_GET_RADIO);
+	if (!hdr)
+		return -EMSGSIZE;
+
+	if (cb)
+		genl_dump_check_consistent(cb, hdr);
+
+	res = append_radio_msg(skb, phy);
+	if (res < 0)
+		goto out_err;
+
+	genlmsg_end(skb, hdr);
+	return 0;
+
+out_err:
+	genlmsg_cancel(skb, hdr);
+	return res;
+}
+
+static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
+{
+	struct hwsim_phy *phy;
+	struct sk_buff *skb;
+	int idx, res = -ENODEV;
+
+	if (!info->attrs[MAC802154_HWSIM_ATTR_RADIO_ID])
+		return -EINVAL;
+	idx = nla_get_u32(info->attrs[MAC802154_HWSIM_ATTR_RADIO_ID]);
+
+	mutex_lock(&hwsim_phys_lock);
+	list_for_each_entry(phy, &hwsim_phys, list) {
+		if (phy->idx != idx)
+			continue;
+
+		skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+		if (!skb) {
+			res = -ENOMEM;
+			goto out_err;
+		}
+
+		res = hwsim_get_radio(skb, phy, info->snd_portid,
+				      info->snd_seq, NULL, 0);
+		if (res < 0) {
+			nlmsg_free(skb);
+			goto out_err;
+		}
+
+		res = genlmsg_reply(skb, info);
+		break;
+	}
+
+out_err:
+	mutex_unlock(&hwsim_phys_lock);
+
+	return res;
+}
+
+static int hwsim_dump_radio_nl(struct sk_buff *skb,
+			       struct netlink_callback *cb)
+{
+	int idx = cb->args[0];
+	struct hwsim_phy *phy;
+	int res;
+
+	mutex_lock(&hwsim_phys_lock);
+
+	if (idx == hwsim_radio_idx)
+		goto done;
+
+	list_for_each_entry(phy, &hwsim_phys, list) {
+		if (phy->idx < idx)
+			continue;
+
+		res = hwsim_get_radio(skb, phy, NETLINK_CB(cb->skb).portid,
+				      cb->nlh->nlmsg_seq, cb, NLM_F_MULTI);
+		if (res < 0)
+			break;
+
+		idx = phy->idx + 1;
+	}
+
+	cb->args[0] = idx;
+
+done:
+	mutex_unlock(&hwsim_phys_lock);
+	return skb->len;
+}
+
+/* caller need to held hwsim_phys_lock */
+static struct hwsim_phy *hwsim_get_radio_by_id(uint32_t idx)
+{
+	struct hwsim_phy *phy;
+
+	list_for_each_entry(phy, &hwsim_phys, list) {
+		if (phy->idx == idx)
+			return phy;
+	}
+
+	return NULL;
+}
+
+static const struct nla_policy hwsim_edge_policy[MAC802154_HWSIM_EDGE_ATTR_MAX + 1] = {
+	[MAC802154_HWSIM_EDGE_ATTR_ENDPOINT_ID] = { .type = NLA_U32 },
+	[MAC802154_HWSIM_EDGE_ATTR_LQI] = { .type = NLA_U8 },
+};
+
+static struct hwsim_edge *hwsim_alloc_edge(struct hwsim_phy *endpoint, u8 lqi)
+{
+	struct hwsim_edge_info *einfo;
+	struct hwsim_edge *e;
+
+	e = kzalloc(sizeof(*e), GFP_KERNEL);
+	if (!e)
+		return NULL;
+
+	einfo = kzalloc(sizeof(*einfo), GFP_KERNEL);
+	if (!einfo) {
+		kfree(e);
+		return NULL;
+	}
+
+	einfo->lqi = 0xff;
+	rcu_assign_pointer(e->info, einfo);
+	e->endpoint = endpoint;
+
+	return e;
+}
+
+static void hwsim_free_edge(struct hwsim_edge *e)
+{
+	struct hwsim_edge_info *einfo;
+
+	rcu_read_lock();
+	einfo = rcu_dereference(e->info);
+	rcu_read_unlock();
+
+	kfree_rcu(einfo, rcu);
+	kfree_rcu(e, rcu);
+}
+
+static int hwsim_new_edge_nl(struct sk_buff *msg, struct genl_info *info)
+{
+	struct nlattr *edge_attrs[MAC802154_HWSIM_EDGE_ATTR_MAX + 1];
+	struct hwsim_phy *phy_v0, *phy_v1;
+	struct hwsim_edge *e;
+	u32 v0, v1;
+
+	if (!info->attrs[MAC802154_HWSIM_ATTR_RADIO_ID] ||
+	    !info->attrs[MAC802154_HWSIM_ATTR_RADIO_EDGE])
+		return -EINVAL;
+
+	if (nla_parse_nested_deprecated(edge_attrs, MAC802154_HWSIM_EDGE_ATTR_MAX, info->attrs[MAC802154_HWSIM_ATTR_RADIO_EDGE], hwsim_edge_policy, NULL))
+		return -EINVAL;
+
+	if (!edge_attrs[MAC802154_HWSIM_EDGE_ATTR_ENDPOINT_ID])
+		return -EINVAL;
+
+	v0 = nla_get_u32(info->attrs[MAC802154_HWSIM_ATTR_RADIO_ID]);
+	v1 = nla_get_u32(edge_attrs[MAC802154_HWSIM_EDGE_ATTR_ENDPOINT_ID]);
+
+	if (v0 == v1)
+		return -EINVAL;
+
+	mutex_lock(&hwsim_phys_lock);
+	phy_v0 = hwsim_get_radio_by_id(v0);
+	if (!phy_v0) {
+		mutex_unlock(&hwsim_phys_lock);
+		return -ENOENT;
+	}
+
+	phy_v1 = hwsim_get_radio_by_id(v1);
+	if (!phy_v1) {
+		mutex_unlock(&hwsim_phys_lock);
+		return -ENOENT;
+	}
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(e, &phy_v0->edges, list) {
+		if (e->endpoint->idx == v1) {
+			mutex_unlock(&hwsim_phys_lock);
+			rcu_read_unlock();
+			return -EEXIST;
+		}
+	}
+	rcu_read_unlock();
+
+	e = hwsim_alloc_edge(phy_v1, 0xff);
+	if (!e) {
+		mutex_unlock(&hwsim_phys_lock);
+		return -ENOMEM;
+	}
+	list_add_rcu(&e->list, &phy_v0->edges);
+	/* wait until changes are done under hwsim_phys_lock lock
+	 * should prevent of calling this function twice while
+	 * edges list has not the changes yet.
+	 */
+	synchronize_rcu();
+	mutex_unlock(&hwsim_phys_lock);
+
+	return 0;
+}
+
+static int hwsim_del_edge_nl(struct sk_buff *msg, struct genl_info *info)
+{
+	struct nlattr *edge_attrs[MAC802154_HWSIM_EDGE_ATTR_MAX + 1];
+	struct hwsim_phy *phy_v0;
+	struct hwsim_edge *e;
+	u32 v0, v1;
+
+	if (!info->attrs[MAC802154_HWSIM_ATTR_RADIO_ID] ||
+	    !info->attrs[MAC802154_HWSIM_ATTR_RADIO_EDGE])
+		return -EINVAL;
+
+	if (nla_parse_nested_deprecated(edge_attrs, MAC802154_HWSIM_EDGE_ATTR_MAX, info->attrs[MAC802154_HWSIM_ATTR_RADIO_EDGE], hwsim_edge_policy, NULL))
+		return -EINVAL;
+
+	if (!edge_attrs[MAC802154_HWSIM_EDGE_ATTR_ENDPOINT_ID])
+		return -EINVAL;
+
+	v0 = nla_get_u32(info->attrs[MAC802154_HWSIM_ATTR_RADIO_ID]);
+	v1 = nla_get_u32(edge_attrs[MAC802154_HWSIM_EDGE_ATTR_ENDPOINT_ID]);
+
+	mutex_lock(&hwsim_phys_lock);
+	phy_v0 = hwsim_get_radio_by_id(v0);
+	if (!phy_v0) {
+		mutex_unlock(&hwsim_phys_lock);
+		return -ENOENT;
+	}
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(e, &phy_v0->edges, list) {
+		if (e->endpoint->idx == v1) {
+			rcu_read_unlock();
+			list_del_rcu(&e->list);
+			hwsim_free_edge(e);
+			/* same again - wait until list changes are done */
+			synchronize_rcu();
+			mutex_unlock(&hwsim_phys_lock);
+			return 0;
+		}
+	}
+	rcu_read_unlock();
+
+	mutex_unlock(&hwsim_phys_lock);
+
+	return -ENOENT;
+}
+
+static int hwsim_set_edge_lqi(struct sk_buff *msg, struct genl_info *info)
+{
+	struct nlattr *edge_attrs[MAC802154_HWSIM_EDGE_ATTR_MAX + 1];
+	struct hwsim_edge_info *einfo;
+	struct hwsim_phy *phy_v0;
+	struct hwsim_edge *e;
+	u32 v0, v1;
+	u8 lqi;
+
+	if (!info->attrs[MAC802154_HWSIM_ATTR_RADIO_ID] ||
+	    !info->attrs[MAC802154_HWSIM_ATTR_RADIO_EDGE])
+		return -EINVAL;
+
+	if (nla_parse_nested_deprecated(edge_attrs, MAC802154_HWSIM_EDGE_ATTR_MAX, info->attrs[MAC802154_HWSIM_ATTR_RADIO_EDGE], hwsim_edge_policy, NULL))
+		return -EINVAL;
+
+	if (!edge_attrs[MAC802154_HWSIM_EDGE_ATTR_ENDPOINT_ID] ||
+	    !edge_attrs[MAC802154_HWSIM_EDGE_ATTR_LQI])
+		return -EINVAL;
+
+	v0 = nla_get_u32(info->attrs[MAC802154_HWSIM_ATTR_RADIO_ID]);
+	v1 = nla_get_u32(edge_attrs[MAC802154_HWSIM_EDGE_ATTR_ENDPOINT_ID]);
+	lqi = nla_get_u8(edge_attrs[MAC802154_HWSIM_EDGE_ATTR_LQI]);
+
+	mutex_lock(&hwsim_phys_lock);
+	phy_v0 = hwsim_get_radio_by_id(v0);
+	if (!phy_v0) {
+		mutex_unlock(&hwsim_phys_lock);
+		return -ENOENT;
+	}
+
+	einfo = kzalloc(sizeof(*einfo), GFP_KERNEL);
+	if (!einfo) {
+		mutex_unlock(&hwsim_phys_lock);
+		return -ENOMEM;
+	}
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(e, &phy_v0->edges, list) {
+		if (e->endpoint->idx == v1) {
+			einfo->lqi = lqi;
+			rcu_assign_pointer(e->info, einfo);
+			rcu_read_unlock();
+			mutex_unlock(&hwsim_phys_lock);
+			return 0;
+		}
+	}
+	rcu_read_unlock();
+
+	kfree(einfo);
+	mutex_unlock(&hwsim_phys_lock);
+
+	return -ENOENT;
+}
+
+/* MAC802154_HWSIM netlink policy */
+
+static const struct nla_policy hwsim_genl_policy[MAC802154_HWSIM_ATTR_MAX + 1] = {
+	[MAC802154_HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
+	[MAC802154_HWSIM_ATTR_RADIO_EDGE] = { .type = NLA_NESTED },
+	[MAC802154_HWSIM_ATTR_RADIO_EDGES] = { .type = NLA_NESTED },
+};
+
+/* Generic Netlink operations array */
+static const struct genl_small_ops hwsim_nl_ops[] = {
+	{
+		.cmd = MAC802154_HWSIM_CMD_NEW_RADIO,
+		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.doit = hwsim_new_radio_nl,
+		.flags = GENL_UNS_ADMIN_PERM,
+	},
+	{
+		.cmd = MAC802154_HWSIM_CMD_DEL_RADIO,
+		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.doit = hwsim_del_radio_nl,
+		.flags = GENL_UNS_ADMIN_PERM,
+	},
+	{
+		.cmd = MAC802154_HWSIM_CMD_GET_RADIO,
+		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.doit = hwsim_get_radio_nl,
+		.dumpit = hwsim_dump_radio_nl,
+	},
+	{
+		.cmd = MAC802154_HWSIM_CMD_NEW_EDGE,
+		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.doit = hwsim_new_edge_nl,
+		.flags = GENL_UNS_ADMIN_PERM,
+	},
+	{
+		.cmd = MAC802154_HWSIM_CMD_DEL_EDGE,
+		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.doit = hwsim_del_edge_nl,
+		.flags = GENL_UNS_ADMIN_PERM,
+	},
+	{
+		.cmd = MAC802154_HWSIM_CMD_SET_EDGE,
+		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.doit = hwsim_set_edge_lqi,
+		.flags = GENL_UNS_ADMIN_PERM,
+	},
+};
+
+static struct genl_family hwsim_genl_family __ro_after_init = {
+	.name = "MAC802154_HWSIM",
+	.version = 1,
+	.maxattr = MAC802154_HWSIM_ATTR_MAX,
+	.policy = hwsim_genl_policy,
+	.module = THIS_MODULE,
+	.small_ops = hwsim_nl_ops,
+	.n_small_ops = ARRAY_SIZE(hwsim_nl_ops),
+	.resv_start_op = MAC802154_HWSIM_CMD_NEW_EDGE + 1,
+	.mcgrps = hwsim_mcgrps,
+	.n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
+};
+
+static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
+				   struct genl_info *info)
+{
+	if (info)
+		genl_notify(&hwsim_genl_family, mcast_skb, info,
+			    HWSIM_MCGRP_CONFIG, GFP_KERNEL);
+	else
+		genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
+				  HWSIM_MCGRP_CONFIG, GFP_KERNEL);
+}
+
+static void hwsim_mcast_new_radio(struct genl_info *info, struct hwsim_phy *phy)
+{
+	struct sk_buff *mcast_skb;
+	void *data;
+
+	mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!mcast_skb)
+		return;
+
+	data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
+			   MAC802154_HWSIM_CMD_NEW_RADIO);
+	if (!data)
+		goto out_err;
+
+	if (append_radio_msg(mcast_skb, phy) < 0)
+		goto out_err;
+
+	genlmsg_end(mcast_skb, data);
+
+	hwsim_mcast_config_msg(mcast_skb, info);
+	return;
+
+out_err:
+	genlmsg_cancel(mcast_skb, data);
+	nlmsg_free(mcast_skb);
+}
+
+static void hwsim_edge_unsubscribe_me(struct hwsim_phy *phy)
+{
+	struct hwsim_phy *tmp;
+	struct hwsim_edge *e;
+
+	rcu_read_lock();
+	/* going to all phy edges and remove phy from it */
+	list_for_each_entry(tmp, &hwsim_phys, list) {
+		list_for_each_entry_rcu(e, &tmp->edges, list) {
+			if (e->endpoint->idx == phy->idx) {
+				list_del_rcu(&e->list);
+				hwsim_free_edge(e);
+			}
+		}
+	}
+	rcu_read_unlock();
+
+	synchronize_rcu();
+}
+
+static int hwsim_subscribe_all_others(struct hwsim_phy *phy)
+{
+	struct hwsim_phy *sub;
+	struct hwsim_edge *e;
+
+	list_for_each_entry(sub, &hwsim_phys, list) {
+		e = hwsim_alloc_edge(sub, 0xff);
+		if (!e)
+			goto me_fail;
+
+		list_add_rcu(&e->list, &phy->edges);
+	}
+
+	list_for_each_entry(sub, &hwsim_phys, list) {
+		e = hwsim_alloc_edge(phy, 0xff);
+		if (!e)
+			goto sub_fail;
+
+		list_add_rcu(&e->list, &sub->edges);
+	}
+
+	return 0;
+
+sub_fail:
+	hwsim_edge_unsubscribe_me(phy);
+me_fail:
+	rcu_read_lock();
+	list_for_each_entry_rcu(e, &phy->edges, list) {
+		list_del_rcu(&e->list);
+		hwsim_free_edge(e);
+	}
+	rcu_read_unlock();
+	return -ENOMEM;
+}
+
+static int hwsim_add_one(struct genl_info *info, struct device *dev,
+			 bool init)
+{
+	struct ieee802154_hw *hw;
+	struct hwsim_phy *phy;
+	struct hwsim_pib *pib;
+	int idx;
+	int err;
+
+	idx = hwsim_radio_idx++;
+
+	hw = ieee802154_alloc_hw(sizeof(*phy), &hwsim_ops);
+	if (!hw)
+		return -ENOMEM;
+
+	phy = hw->priv;
+	phy->hw = hw;
+
+	/* 868 MHz BPSK	802.15.4-2003 */
+	hw->phy->supported.channels[0] |= 1;
+	/* 915 MHz BPSK	802.15.4-2003 */
+	hw->phy->supported.channels[0] |= 0x7fe;
+	/* 2.4 GHz O-QPSK 802.15.4-2003 */
+	hw->phy->supported.channels[0] |= 0x7FFF800;
+	/* 868 MHz ASK 802.15.4-2006 */
+	hw->phy->supported.channels[1] |= 1;
+	/* 915 MHz ASK 802.15.4-2006 */
+	hw->phy->supported.channels[1] |= 0x7fe;
+	/* 868 MHz O-QPSK 802.15.4-2006 */
+	hw->phy->supported.channels[2] |= 1;
+	/* 915 MHz O-QPSK 802.15.4-2006 */
+	hw->phy->supported.channels[2] |= 0x7fe;
+	/* 2.4 GHz CSS 802.15.4a-2007 */
+	hw->phy->supported.channels[3] |= 0x3fff;
+	/* UWB Sub-gigahertz 802.15.4a-2007 */
+	hw->phy->supported.channels[4] |= 1;
+	/* UWB Low band 802.15.4a-2007 */
+	hw->phy->supported.channels[4] |= 0x1e;
+	/* UWB High band 802.15.4a-2007 */
+	hw->phy->supported.channels[4] |= 0xffe0;
+	/* 750 MHz O-QPSK 802.15.4c-2009 */
+	hw->phy->supported.channels[5] |= 0xf;
+	/* 750 MHz MPSK 802.15.4c-2009 */
+	hw->phy->supported.channels[5] |= 0xf0;
+	/* 950 MHz BPSK 802.15.4d-2009 */
+	hw->phy->supported.channels[6] |= 0x3ff;
+	/* 950 MHz GFSK 802.15.4d-2009 */
+	hw->phy->supported.channels[6] |= 0x3ffc00;
+
+	ieee802154_random_extended_addr(&hw->phy->perm_extended_addr);
+
+	/* hwsim phy channel 13 as default */
+	hw->phy->current_channel = 13;
+	pib = kzalloc(sizeof(*pib), GFP_KERNEL);
+	if (!pib) {
+		err = -ENOMEM;
+		goto err_pib;
+	}
+
+	pib->channel = 13;
+	pib->filt.short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST);
+	pib->filt.pan_id = cpu_to_le16(IEEE802154_PANID_BROADCAST);
+	rcu_assign_pointer(phy->pib, pib);
+	phy->idx = idx;
+	INIT_LIST_HEAD(&phy->edges);
+
+	hw->flags = IEEE802154_HW_PROMISCUOUS;
+	hw->parent = dev;
+
+	err = ieee802154_register_hw(hw);
+	if (err)
+		goto err_reg;
+
+	mutex_lock(&hwsim_phys_lock);
+	if (init) {
+		err = hwsim_subscribe_all_others(phy);
+		if (err < 0) {
+			mutex_unlock(&hwsim_phys_lock);
+			goto err_subscribe;
+		}
+	}
+	list_add_tail(&phy->list, &hwsim_phys);
+	mutex_unlock(&hwsim_phys_lock);
+
+	hwsim_mcast_new_radio(info, phy);
+
+	return idx;
+
+err_subscribe:
+	ieee802154_unregister_hw(phy->hw);
+err_reg:
+	kfree(pib);
+err_pib:
+	ieee802154_free_hw(phy->hw);
+	return err;
+}
+
+static void hwsim_del(struct hwsim_phy *phy)
+{
+	struct hwsim_pib *pib;
+	struct hwsim_edge *e;
+
+	hwsim_edge_unsubscribe_me(phy);
+
+	list_del(&phy->list);
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(e, &phy->edges, list) {
+		list_del_rcu(&e->list);
+		hwsim_free_edge(e);
+	}
+	pib = rcu_dereference(phy->pib);
+	rcu_read_unlock();
+
+	kfree_rcu(pib, rcu);
+
+	ieee802154_unregister_hw(phy->hw);
+	ieee802154_free_hw(phy->hw);
+}
+
+static int hwsim_probe(struct platform_device *pdev)
+{
+	struct hwsim_phy *phy, *tmp;
+	int err, i;
+
+	for (i = 0; i < 2; i++) {
+		err = hwsim_add_one(NULL, &pdev->dev, true);
+		if (err < 0)
+			goto err_slave;
+	}
+
+	dev_info(&pdev->dev, "Added 2 mac802154 hwsim hardware radios\n");
+	return 0;
+
+err_slave:
+	mutex_lock(&hwsim_phys_lock);
+	list_for_each_entry_safe(phy, tmp, &hwsim_phys, list)
+		hwsim_del(phy);
+	mutex_unlock(&hwsim_phys_lock);
+	return err;
+}
+
+static int hwsim_remove(struct platform_device *pdev)
+{
+	struct hwsim_phy *phy, *tmp;
+
+	mutex_lock(&hwsim_phys_lock);
+	list_for_each_entry_safe(phy, tmp, &hwsim_phys, list)
+		hwsim_del(phy);
+	mutex_unlock(&hwsim_phys_lock);
+
+	return 0;
+}
+
+static struct platform_driver mac802154hwsim_driver = {
+	.probe = hwsim_probe,
+	.remove = hwsim_remove,
+	.driver = {
+			.name = "mac802154_hwsim",
+	},
+};
+
+static __init int hwsim_init_module(void)
+{
+	int rc;
+
+	rc = genl_register_family(&hwsim_genl_family);
+	if (rc)
+		return rc;
+
+	mac802154hwsim_dev = platform_device_register_simple("mac802154_hwsim",
+							     -1, NULL, 0);
+	if (IS_ERR(mac802154hwsim_dev)) {
+		rc = PTR_ERR(mac802154hwsim_dev);
+		goto platform_dev;
+	}
+
+	rc = platform_driver_register(&mac802154hwsim_driver);
+	if (rc < 0)
+		goto platform_drv;
+
+	return 0;
+
+platform_drv:
+	platform_device_unregister(mac802154hwsim_dev);
+platform_dev:
+	genl_unregister_family(&hwsim_genl_family);
+	return rc;
+}
+
+static __exit void hwsim_remove_module(void)
+{
+	genl_unregister_family(&hwsim_genl_family);
+	platform_driver_unregister(&mac802154hwsim_driver);
+	platform_device_unregister(mac802154hwsim_dev);
+}
+
+module_init(hwsim_init_module);
+module_exit(hwsim_remove_module);