Merge tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core
  ----

   - Support TCPv6 segmentation offload with super-segments larger than
     64k bytes using the IPv6 Jumbogram extension header (AKA BIG TCP).

   - Generalize skb freeing deferral to per-cpu lists, instead of
     per-socket lists.

   - Add a netdev statistic for packets dropped due to L2 address
     mismatch (rx_otherhost_dropped).

   - Continue work annotating skb drop reasons.

   - Accept alternative netdev names (ALT_IFNAME) in more netlink
     requests.

   - Add VLAN support for AF_PACKET SOCK_RAW GSO.

   - Allow receiving skb mark from the socket as a cmsg.

   - Enable memcg accounting for veth queues, sysctl tables and IPv6.

  BPF
  ---

   - Add libbpf support for User Statically-Defined Tracing (USDTs).

   - Speed up symbol resolution for kprobes multi-link attachments.

   - Support storing typed pointers to referenced and unreferenced
     objects in BPF maps.

   - Add support for BPF link iterator.

   - Introduce access to remote CPU map elements in BPF per-cpu map.

   - Allow middle-of-the-road settings for the
     kernel.unprivileged_bpf_disabled sysctl.

   - Implement basic types of dynamic pointers e.g. to allow for
     dynamically sized ringbuf reservations without extra memory copies.

  Protocols
  ---------

   - Retire port only listening_hash table, add a second bind table
     hashed by port and address. Avoid linear list walk when binding to
     very popular ports (e.g. 443).

   - Add bridge FDB bulk flush filtering support allowing user space to
     remove all FDB entries matching a condition.

   - Introduce accept_unsolicited_na sysctl for IPv6 to implement
     router-side changes for RFC9131.

   - Support for MPTCP path manager in user space.

   - Add MPTCP support for fallback to regular TCP for connections that
     have never connected additional subflows or transmitted
     out-of-sequence data (partial support for RFC8684 fallback).

   - Avoid races in MPTCP-level window tracking, stabilize and improve
     throughput.

   - Support lockless operation of GRE tunnels with seq numbers enabled.

   - WiFi support for host based BSS color collision detection.

   - Add support for SO_TXTIME/SCM_TXTIME on CAN sockets.

   - Support transmission w/o flow control in CAN ISOTP (ISO 15765-2).

   - Support zero-copy Tx with TLS 1.2 crypto offload (sendfile).

   - Allow matching on the number of VLAN tags via tc-flower.

   - Add tracepoint for tcp_set_ca_state().

  Driver API
  ----------

   - Improve error reporting from classifier and action offload.

   - Add support for listing line cards in switches (devlink).

   - Add helpers for reporting page pool statistics with ethtool -S.

   - Add support for reading clock cycles when using PTP virtual clocks,
     instead of having the driver convert to time before reporting. This
     makes it possible to report time from different vclocks.

   - Support configuring low-latency Tx descriptor push via ethtool.

   - Separate Clause 22 and Clause 45 MDIO accesses more explicitly.

  New hardware / drivers
  ----------------------

   - Ethernet:
      - Marvell's Octeon NIC PCI Endpoint support (octeon_ep)
      - Sunplus SP7021 SoC (sp7021_emac)
      - Add support for Renesas RZ/V2M (in ravb)
      - Add support for MediaTek mt7986 switches (in mtk_eth_soc)

   - Ethernet PHYs:
      - ADIN1100 industrial PHYs (w/ 10BASE-T1L and SQI reporting)
      - TI DP83TD510 PHY
      - Microchip LAN8742/LAN88xx PHYs

   - WiFi:
      - Driver for pureLiFi X, XL, XC devices (plfxlc)
      - Driver for Silicon Labs devices (wfx)
      - Support for WCN6750 (in ath11k)
      - Support Realtek 8852ce devices (in rtw89)

   - Mobile:
      - MediaTek T700 modems (Intel 5G 5000 M.2 cards)

   - CAN:
      - ctucanfd: add support for CTU CAN FD open-source IP core from
        Czech Technical University in Prague

  Drivers
  -------

   - Delete a number of old drivers still using virt_to_bus().

   - Ethernet NICs:
      - intel: support TSO on tunnels MPLS
      - broadcom: support multi-buffer XDP
      - nfp: support VF rate limiting
      - sfc: use hardware tx timestamps for more than PTP
      - mlx5: multi-port eswitch support
      - hyper-v: add support for XDP_REDIRECT
      - atlantic: XDP support (including multi-buffer)
      - macb: improve real-time perf by deferring Tx processing to NAPI

   - High-speed Ethernet switches:
      - mlxsw: implement basic line card information querying
      - prestera: add support for traffic policing on ingress and egress

   - Embedded Ethernet switches:
      - lan966x: add support for packet DMA (FDMA)
      - lan966x: add support for PTP programmable pins
      - ti: cpsw_new: enable bc/mc storm prevention

   - Qualcomm 802.11ax WiFi (ath11k):
      - Wake-on-WLAN support for QCA6390 and WCN6855
      - device recovery (firmware restart) support
      - support setting Specific Absorption Rate (SAR) for WCN6855
      - read country code from SMBIOS for WCN6855/QCA6390
      - enable keep-alive during WoWLAN suspend
      - implement remain-on-channel support

   - MediaTek WiFi (mt76):
      - support Wireless Ethernet Dispatch offloading packet movement
        between the Ethernet switch and WiFi interfaces
      - non-standard VHT MCS10-11 support
      - mt7921 AP mode support
      - mt7921 IPv6 NS offload support

   - Ethernet PHYs:
      - micrel: ksz9031/ksz9131: cabletest support
      - lan87xx: SQI support for T1 PHYs
      - lan937x: add interrupt support for link detection"

* tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1809 commits)
  ptp: ocp: Add firmware header checks
  ptp: ocp: fix PPS source selector debugfs reporting
  ptp: ocp: add .init function for sma_op vector
  ptp: ocp: vectorize the sma accessor functions
  ptp: ocp: constify selectors
  ptp: ocp: parameterize input/output sma selectors
  ptp: ocp: revise firmware display
  ptp: ocp: add Celestica timecard PCI ids
  ptp: ocp: Remove #ifdefs around PCI IDs
  ptp: ocp: 32-bit fixups for pci start address
  Revert "net/smc: fix listen processing for SMC-Rv2"
  ath6kl: Use cc-disable-warning to disable -Wdangling-pointer
  selftests/bpf: Dynptr tests
  bpf: Add dynptr data slices
  bpf: Add bpf_dynptr_read and bpf_dynptr_write
  bpf: Dynptr support for ring buffers
  bpf: Add bpf_dynptr_from_mem for local dynptrs
  bpf: Add verifier support for dynptrs
  bpf: Suppress 'passing zero to PTR_ERR' warning
  bpf: Introduce bpf_arch_text_invalidate for bpf_prog_pack
  ...

41 files changed, 0 insertions, 8172 deletions

diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 932acb4e8cbc..fc274737053d 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -86,6 +86,5 @@ source "drivers/staging/fieldbus/Kconfig"
 
 source "drivers/staging/qlge/Kconfig"
 
-source "drivers/staging/wfx/Kconfig"
 
 endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 3ffb35ccfae2..65e317922e3f 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -33,4 +33,3 @@ obj-$(CONFIG_PI433)		+= pi433/
 obj-$(CONFIG_XIL_AXIS_FIFO)	+= axis-fifo/
 obj-$(CONFIG_FIELDBUS_DEV)     += fieldbus/
 obj-$(CONFIG_QLGE)		+= qlge/
-obj-$(CONFIG_WFX)		+= wfx/
diff --git a/drivers/staging/wfx/Kconfig b/drivers/staging/wfx/Kconfig
deleted file mode 100644
index 835a855409d8..000000000000
--- a/drivers/staging/wfx/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-config WFX
-	tristate "Silicon Labs wireless chips WF200 and further"
-	depends on MAC80211
-	depends on MMC || !MMC # do not allow WFX=y if MMC=m
-	depends on (SPI || MMC)
-	help
-	  This is a driver for Silicons Labs WFxxx series (WF200 and further)
-	  chipsets. This chip can be found on SPI or SDIO buses.
-
-	  Silabs does not use a reliable SDIO vendor ID. So, to avoid conflicts,
-	  the driver won't probe the device if it is not also declared in the
-	  Device Tree.
diff --git a/drivers/staging/wfx/Makefile b/drivers/staging/wfx/Makefile
deleted file mode 100644
index c8b356f71c99..000000000000
--- a/drivers/staging/wfx/Makefile
+++ /dev/null
@@ -1,25 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-
-# Necessary for CREATE_TRACE_POINTS
-CFLAGS_debug.o = -I$(src)
-
-wfx-y := \
-	bh.o \
-	hwio.o \
-	fwio.o \
-	hif_tx_mib.o \
-	hif_tx.o \
-	hif_rx.o \
-	queue.o \
-	data_tx.o \
-	data_rx.o \
-	scan.o \
-	sta.o \
-	key.o \
-	main.o \
-	debug.o
-wfx-$(CONFIG_SPI) += bus_spi.o
-# When CONFIG_MMC == m, append to 'wfx-y' (and not to 'wfx-m')
-wfx-$(subst m,y,$(CONFIG_MMC)) += bus_sdio.o
-
-obj-$(CONFIG_WFX) += wfx.o
diff --git a/drivers/staging/wfx/TODO b/drivers/staging/wfx/TODO
deleted file mode 100644
index 1b4bc2af94b6..000000000000
--- a/drivers/staging/wfx/TODO
+++ /dev/null
@@ -1,6 +0,0 @@
-This is a list of things that need to be done to get this driver out of the
-staging directory.
-
-  - As suggested by Felix, rate control could be improved following this idea:
-        https://lore.kernel.org/lkml/3099559.gv3Q75KnN1@pc-42/
-
diff --git a/drivers/staging/wfx/bh.c b/drivers/staging/wfx/bh.c
deleted file mode 100644
index bcea9d5b119c..000000000000
--- a/drivers/staging/wfx/bh.c
+++ /dev/null
@@ -1,324 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Interrupt bottom half (BH).
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/gpio/consumer.h>
-#include <net/mac80211.h>
-
-#include "bh.h"
-#include "wfx.h"
-#include "hwio.h"
-#include "traces.h"
-#include "hif_rx.h"
-#include "hif_api_cmd.h"
-
-static void device_wakeup(struct wfx_dev *wdev)
-{
-	int max_retry = 3;
-
-	if (!wdev->pdata.gpio_wakeup)
-		return;
-	if (gpiod_get_value_cansleep(wdev->pdata.gpio_wakeup) > 0)
-		return;
-
-	if (wfx_api_older_than(wdev, 1, 4)) {
-		gpiod_set_value_cansleep(wdev->pdata.gpio_wakeup, 1);
-		if (!completion_done(&wdev->hif.ctrl_ready))
-			usleep_range(2000, 2500);
-		return;
-	}
-	for (;;) {
-		gpiod_set_value_cansleep(wdev->pdata.gpio_wakeup, 1);
-		/* completion.h does not provide any function to wait completion without consume it
-		 * (a kind of wait_for_completion_done_timeout()). So we have to emulate it.
-		 */
-		if (wait_for_completion_timeout(&wdev->hif.ctrl_ready, msecs_to_jiffies(2))) {
-			complete(&wdev->hif.ctrl_ready);
-			return;
-		} else if (max_retry-- > 0) {
-			/* Older firmwares have a race in sleep/wake-up process.  Redo the process
-			 * is sufficient to unfreeze the chip.
-			 */
-			dev_err(wdev->dev, "timeout while wake up chip\n");
-			gpiod_set_value_cansleep(wdev->pdata.gpio_wakeup, 0);
-			usleep_range(2000, 2500);
-		} else {
-			dev_err(wdev->dev, "max wake-up retries reached\n");
-			return;
-		}
-	}
-}
-
-static void device_release(struct wfx_dev *wdev)
-{
-	if (!wdev->pdata.gpio_wakeup)
-		return;
-
-	gpiod_set_value_cansleep(wdev->pdata.gpio_wakeup, 0);
-}
-
-static int rx_helper(struct wfx_dev *wdev, size_t read_len, int *is_cnf)
-{
-	struct sk_buff *skb;
-	struct wfx_hif_msg *hif;
-	size_t alloc_len;
-	size_t computed_len;
-	int release_count;
-	int piggyback = 0;
-
-	WARN(read_len > round_down(0xFFF, 2) * sizeof(u16), "request exceed the chip capability");
-
-	/* Add 2 to take into account piggyback size */
-	alloc_len = wdev->hwbus_ops->align_size(wdev->hwbus_priv, read_len + 2);
-	skb = dev_alloc_skb(alloc_len);
-	if (!skb)
-		return -ENOMEM;
-
-	if (wfx_data_read(wdev, skb->data, alloc_len))
-		goto err;
-
-	piggyback = le16_to_cpup((__le16 *)(skb->data + alloc_len - 2));
-	_trace_piggyback(piggyback, false);
-
-	hif = (struct wfx_hif_msg *)skb->data;
-	WARN(hif->encrypted & 0x3, "encryption is unsupported");
-	if (WARN(read_len < sizeof(struct wfx_hif_msg), "corrupted read"))
-		goto err;
-	computed_len = le16_to_cpu(hif->len);
-	computed_len = round_up(computed_len, 2);
-	if (computed_len != read_len) {
-		dev_err(wdev->dev, "inconsistent message length: %zu != %zu\n",
-			computed_len, read_len);
-		print_hex_dump(KERN_INFO, "hif: ", DUMP_PREFIX_OFFSET, 16, 1,
-			       hif, read_len, true);
-		goto err;
-	}
-
-	if (!(hif->id & HIF_ID_IS_INDICATION)) {
-		(*is_cnf)++;
-		if (hif->id == HIF_CNF_ID_MULTI_TRANSMIT)
-			release_count =
-				((struct wfx_hif_cnf_multi_transmit *)hif->body)->num_tx_confs;
-		else
-			release_count = 1;
-		WARN(wdev->hif.tx_buffers_used < release_count, "corrupted buffer counter");
-		wdev->hif.tx_buffers_used -= release_count;
-	}
-	_trace_hif_recv(hif, wdev->hif.tx_buffers_used);
-
-	if (hif->id != HIF_IND_ID_EXCEPTION && hif->id != HIF_IND_ID_ERROR) {
-		if (hif->seqnum != wdev->hif.rx_seqnum)
-			dev_warn(wdev->dev, "wrong message sequence: %d != %d\n",
-				 hif->seqnum, wdev->hif.rx_seqnum);
-		wdev->hif.rx_seqnum = (hif->seqnum + 1) % (HIF_COUNTER_MAX + 1);
-	}
-
-	skb_put(skb, le16_to_cpu(hif->len));
-	/* wfx_handle_rx takes care on SKB livetime */
-	wfx_handle_rx(wdev, skb);
-	if (!wdev->hif.tx_buffers_used)
-		wake_up(&wdev->hif.tx_buffers_empty);
-
-	return piggyback;
-
-err:
-	if (skb)
-		dev_kfree_skb(skb);
-	return -EIO;
-}
-
-static int bh_work_rx(struct wfx_dev *wdev, int max_msg, int *num_cnf)
-{
-	size_t len;
-	int i;
-	int ctrl_reg, piggyback;
-
-	piggyback = 0;
-	for (i = 0; i < max_msg; i++) {
-		if (piggyback & CTRL_NEXT_LEN_MASK)
-			ctrl_reg = piggyback;
-		else if (try_wait_for_completion(&wdev->hif.ctrl_ready))
-			ctrl_reg = atomic_xchg(&wdev->hif.ctrl_reg, 0);
-		else
-			ctrl_reg = 0;
-		if (!(ctrl_reg & CTRL_NEXT_LEN_MASK))
-			return i;
-		/* ctrl_reg units are 16bits words */
-		len = (ctrl_reg & CTRL_NEXT_LEN_MASK) * 2;
-		piggyback = rx_helper(wdev, len, num_cnf);
-		if (piggyback < 0)
-			return i;
-		if (!(piggyback & CTRL_WLAN_READY))
-			dev_err(wdev->dev, "unexpected piggyback value: ready bit not set: %04x\n",
-				piggyback);
-	}
-	if (piggyback & CTRL_NEXT_LEN_MASK) {
-		ctrl_reg = atomic_xchg(&wdev->hif.ctrl_reg, piggyback);
-		complete(&wdev->hif.ctrl_ready);
-		if (ctrl_reg)
-			dev_err(wdev->dev, "unexpected IRQ happened: %04x/%04x\n",
-				ctrl_reg, piggyback);
-	}
-	return i;
-}
-
-static void tx_helper(struct wfx_dev *wdev, struct wfx_hif_msg *hif)
-{
-	int ret;
-	void *data;
-	bool is_encrypted = false;
-	size_t len = le16_to_cpu(hif->len);
-
-	WARN(len < sizeof(*hif), "try to send corrupted data");
-
-	hif->seqnum = wdev->hif.tx_seqnum;
-	wdev->hif.tx_seqnum = (wdev->hif.tx_seqnum + 1) % (HIF_COUNTER_MAX + 1);
-
-	data = hif;
-	WARN(len > le16_to_cpu(wdev->hw_caps.size_inp_ch_buf),
-	     "request exceed the chip capability: %zu > %d\n",
-	     len, le16_to_cpu(wdev->hw_caps.size_inp_ch_buf));
-	len = wdev->hwbus_ops->align_size(wdev->hwbus_priv, len);
-	ret = wfx_data_write(wdev, data, len);
-	if (ret)
-		goto end;
-
-	wdev->hif.tx_buffers_used++;
-	_trace_hif_send(hif, wdev->hif.tx_buffers_used);
-end:
-	if (is_encrypted)
-		kfree(data);
-}
-
-static int bh_work_tx(struct wfx_dev *wdev, int max_msg)
-{
-	struct wfx_hif_msg *hif;
-	int i;
-
-	for (i = 0; i < max_msg; i++) {
-		hif = NULL;
-		if (wdev->hif.tx_buffers_used < le16_to_cpu(wdev->hw_caps.num_inp_ch_bufs)) {
-			if (try_wait_for_completion(&wdev->hif_cmd.ready)) {
-				WARN(!mutex_is_locked(&wdev->hif_cmd.lock), "data locking error");
-				hif = wdev->hif_cmd.buf_send;
-			} else {
-				hif = wfx_tx_queues_get(wdev);
-			}
-		}
-		if (!hif)
-			return i;
-		tx_helper(wdev, hif);
-	}
-	return i;
-}
-
-/* In SDIO mode, it is necessary to make an access to a register to acknowledge last received
- * message. It could be possible to restrict this acknowledge to SDIO mode and only if last
- * operation was rx.
- */
-static void ack_sdio_data(struct wfx_dev *wdev)
-{
-	u32 cfg_reg;
-
-	wfx_config_reg_read(wdev, &cfg_reg);
-	if (cfg_reg & 0xFF) {
-		dev_warn(wdev->dev, "chip reports errors: %02x\n", cfg_reg & 0xFF);
-		wfx_config_reg_write_bits(wdev, 0xFF, 0x00);
-	}
-}
-
-static void bh_work(struct work_struct *work)
-{
-	struct wfx_dev *wdev = container_of(work, struct wfx_dev, hif.bh);
-	int stats_req = 0, stats_cnf = 0, stats_ind = 0;
-	bool release_chip = false, last_op_is_rx = false;
-	int num_tx, num_rx;
-
-	device_wakeup(wdev);
-	do {
-		num_tx = bh_work_tx(wdev, 32);
-		stats_req += num_tx;
-		if (num_tx)
-			last_op_is_rx = false;
-		num_rx = bh_work_rx(wdev, 32, &stats_cnf);
-		stats_ind += num_rx;
-		if (num_rx)
-			last_op_is_rx = true;
-	} while (num_rx || num_tx);
-	stats_ind -= stats_cnf;
-
-	if (last_op_is_rx)
-		ack_sdio_data(wdev);
-	if (!wdev->hif.tx_buffers_used && !work_pending(work)) {
-		device_release(wdev);
-		release_chip = true;
-	}
-	_trace_bh_stats(stats_ind, stats_req, stats_cnf, wdev->hif.tx_buffers_used, release_chip);
-}
-
-/* An IRQ from chip did occur */
-void wfx_bh_request_rx(struct wfx_dev *wdev)
-{
-	u32 cur, prev;
-
-	wfx_control_reg_read(wdev, &cur);
-	prev = atomic_xchg(&wdev->hif.ctrl_reg, cur);
-	complete(&wdev->hif.ctrl_ready);
-	queue_work(system_highpri_wq, &wdev->hif.bh);
-
-	if (!(cur & CTRL_NEXT_LEN_MASK))
-		dev_err(wdev->dev, "unexpected control register value: length field is 0: %04x\n",
-			cur);
-	if (prev != 0)
-		dev_err(wdev->dev, "received IRQ but previous data was not (yet) read: %04x/%04x\n",
-			prev, cur);
-}
-
-/* Driver want to send data */
-void wfx_bh_request_tx(struct wfx_dev *wdev)
-{
-	queue_work(system_highpri_wq, &wdev->hif.bh);
-}
-
-/* If IRQ is not available, this function allow to manually poll the control register and simulate
- * an IRQ ahen an event happened.
- *
- * Note that the device has a bug: If an IRQ raise while host read control register, the IRQ is
- * lost. So, use this function carefully (only duing device initialisation).
- */
-void wfx_bh_poll_irq(struct wfx_dev *wdev)
-{
-	ktime_t now, start;
-	u32 reg;
-
-	WARN(!wdev->poll_irq, "unexpected IRQ polling can mask IRQ");
-	flush_workqueue(system_highpri_wq);
-	start = ktime_get();
-	for (;;) {
-		wfx_control_reg_read(wdev, &reg);
-		now = ktime_get();
-		if (reg & 0xFFF)
-			break;
-		if (ktime_after(now, ktime_add_ms(start, 1000))) {
-			dev_err(wdev->dev, "time out while polling control register\n");
-			return;
-		}
-		udelay(200);
-	}
-	wfx_bh_request_rx(wdev);
-}
-
-void wfx_bh_register(struct wfx_dev *wdev)
-{
-	INIT_WORK(&wdev->hif.bh, bh_work);
-	init_completion(&wdev->hif.ctrl_ready);
-	init_waitqueue_head(&wdev->hif.tx_buffers_empty);
-}
-
-void wfx_bh_unregister(struct wfx_dev *wdev)
-{
-	flush_work(&wdev->hif.bh);
-}
diff --git a/drivers/staging/wfx/bh.h b/drivers/staging/wfx/bh.h
deleted file mode 100644
index a44c8b421b7c..000000000000
--- a/drivers/staging/wfx/bh.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Interrupt bottom half (BH).
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#ifndef WFX_BH_H
-#define WFX_BH_H
-
-#include <linux/atomic.h>
-#include <linux/wait.h>
-#include <linux/completion.h>
-#include <linux/workqueue.h>
-
-struct wfx_dev;
-
-struct wfx_hif {
-	struct work_struct bh;
-	struct completion ctrl_ready;
-	wait_queue_head_t tx_buffers_empty;
-	atomic_t ctrl_reg;
-	int rx_seqnum;
-	int tx_seqnum;
-	int tx_buffers_used;
-};
-
-void wfx_bh_register(struct wfx_dev *wdev);
-void wfx_bh_unregister(struct wfx_dev *wdev);
-void wfx_bh_request_rx(struct wfx_dev *wdev);
-void wfx_bh_request_tx(struct wfx_dev *wdev);
-void wfx_bh_poll_irq(struct wfx_dev *wdev);
-
-#endif
diff --git a/drivers/staging/wfx/bus.h b/drivers/staging/wfx/bus.h
deleted file mode 100644
index ccadfdd6873c..000000000000
--- a/drivers/staging/wfx/bus.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Common bus abstraction layer.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#ifndef WFX_BUS_H
-#define WFX_BUS_H
-
-#include <linux/mmc/sdio_func.h>
-#include <linux/spi/spi.h>
-
-#define WFX_REG_CONFIG        0x0
-#define WFX_REG_CONTROL       0x1
-#define WFX_REG_IN_OUT_QUEUE  0x2
-#define WFX_REG_AHB_DPORT     0x3
-#define WFX_REG_BASE_ADDR     0x4
-#define WFX_REG_SRAM_DPORT    0x5
-#define WFX_REG_SET_GEN_R_W   0x6
-#define WFX_REG_FRAME_OUT     0x7
-
-struct wfx_hwbus_ops {
-	int (*copy_from_io)(void *bus_priv, unsigned int addr, void *dst, size_t count);
-	int (*copy_to_io)(void *bus_priv, unsigned int addr, const void *src, size_t count);
-	int (*irq_subscribe)(void *bus_priv);
-	int (*irq_unsubscribe)(void *bus_priv);
-	void (*lock)(void *bus_priv);
-	void (*unlock)(void *bus_priv);
-	size_t (*align_size)(void *bus_priv, size_t size);
-};
-
-extern struct sdio_driver wfx_sdio_driver;
-extern struct spi_driver wfx_spi_driver;
-
-#endif
diff --git a/drivers/staging/wfx/bus_sdio.c b/drivers/staging/wfx/bus_sdio.c
deleted file mode 100644
index 51a0d58a9070..000000000000
--- a/drivers/staging/wfx/bus_sdio.c
+++ /dev/null
@@ -1,273 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * SDIO interface.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/module.h>
-#include <linux/mmc/sdio.h>
-#include <linux/mmc/sdio_func.h>
-#include <linux/mmc/card.h>
-#include <linux/interrupt.h>
-#include <linux/of_device.h>
-#include <linux/of_irq.h>
-#include <linux/irq.h>
-#include <linux/align.h>
-
-#include "bus.h"
-#include "wfx.h"
-#include "hwio.h"
-#include "main.h"
-#include "bh.h"
-
-static const struct wfx_platform_data pdata_wf200 = {
-	.file_fw = "wfx/wfm_wf200",
-	.file_pds = "wfx/wf200.pds",
-};
-
-static const struct wfx_platform_data pdata_brd4001a = {
-	.file_fw = "wfx/wfm_wf200",
-	.file_pds = "wfx/brd4001a.pds",
-};
-
-static const struct wfx_platform_data pdata_brd8022a = {
-	.file_fw = "wfx/wfm_wf200",
-	.file_pds = "wfx/brd8022a.pds",
-};
-
-static const struct wfx_platform_data pdata_brd8023a = {
-	.file_fw = "wfx/wfm_wf200",
-	.file_pds = "wfx/brd8023a.pds",
-};
-
-struct wfx_sdio_priv {
-	struct sdio_func *func;
-	struct wfx_dev *core;
-	u8 buf_id_tx;
-	u8 buf_id_rx;
-	int of_irq;
-};
-
-static int wfx_sdio_copy_from_io(void *priv, unsigned int reg_id, void *dst, size_t count)
-{
-	struct wfx_sdio_priv *bus = priv;
-	unsigned int sdio_addr = reg_id << 2;
-	int ret;
-
-	WARN(reg_id > 7, "chip only has 7 registers");
-	WARN(!IS_ALIGNED((uintptr_t)dst, 4), "unaligned buffer address");
-	WARN(!IS_ALIGNED(count, 4), "unaligned buffer size");
-
-	/* Use queue mode buffers */
-	if (reg_id == WFX_REG_IN_OUT_QUEUE)
-		sdio_addr |= (bus->buf_id_rx + 1) << 7;
-	ret = sdio_memcpy_fromio(bus->func, dst, sdio_addr, count);
-	if (!ret && reg_id == WFX_REG_IN_OUT_QUEUE)
-		bus->buf_id_rx = (bus->buf_id_rx + 1) % 4;
-
-	return ret;
-}
-
-static int wfx_sdio_copy_to_io(void *priv, unsigned int reg_id, const void *src, size_t count)
-{
-	struct wfx_sdio_priv *bus = priv;
-	unsigned int sdio_addr = reg_id << 2;
-	int ret;
-
-	WARN(reg_id > 7, "chip only has 7 registers");
-	WARN(!IS_ALIGNED((uintptr_t)src, 4), "unaligned buffer address");
-	WARN(!IS_ALIGNED(count, 4), "unaligned buffer size");
-
-	/* Use queue mode buffers */
-	if (reg_id == WFX_REG_IN_OUT_QUEUE)
-		sdio_addr |= bus->buf_id_tx << 7;
-	/* FIXME: discards 'const' qualifier for src */
-	ret = sdio_memcpy_toio(bus->func, sdio_addr, (void *)src, count);
-	if (!ret && reg_id == WFX_REG_IN_OUT_QUEUE)
-		bus->buf_id_tx = (bus->buf_id_tx + 1) % 32;
-
-	return ret;
-}
-
-static void wfx_sdio_lock(void *priv)
-{
-	struct wfx_sdio_priv *bus = priv;
-
-	sdio_claim_host(bus->func);
-}
-
-static void wfx_sdio_unlock(void *priv)
-{
-	struct wfx_sdio_priv *bus = priv;
-
-	sdio_release_host(bus->func);
-}
-
-static void wfx_sdio_irq_handler(struct sdio_func *func)
-{
-	struct wfx_sdio_priv *bus = sdio_get_drvdata(func);
-
-	wfx_bh_request_rx(bus->core);
-}
-
-static irqreturn_t wfx_sdio_irq_handler_ext(int irq, void *priv)
-{
-	struct wfx_sdio_priv *bus = priv;
-
-	sdio_claim_host(bus->func);
-	wfx_bh_request_rx(bus->core);
-	sdio_release_host(bus->func);
-	return IRQ_HANDLED;
-}
-
-static int wfx_sdio_irq_subscribe(void *priv)
-{
-	struct wfx_sdio_priv *bus = priv;
-	u32 flags;
-	int ret;
-	u8 cccr;
-
-	if (!bus->of_irq) {
-		sdio_claim_host(bus->func);
-		ret = sdio_claim_irq(bus->func, wfx_sdio_irq_handler);
-		sdio_release_host(bus->func);
-		return ret;
-	}
-
-	flags = irq_get_trigger_type(bus->of_irq);
-	if (!flags)
-		flags = IRQF_TRIGGER_HIGH;
-	flags |= IRQF_ONESHOT;
-	ret = devm_request_threaded_irq(&bus->func->dev, bus->of_irq, NULL,
-					wfx_sdio_irq_handler_ext, flags, "wfx", bus);
-	if (ret)
-		return ret;
-	sdio_claim_host(bus->func);
-	cccr = sdio_f0_readb(bus->func, SDIO_CCCR_IENx, NULL);
-	cccr |= BIT(0);
-	cccr |= BIT(bus->func->num);
-	sdio_f0_writeb(bus->func, cccr, SDIO_CCCR_IENx, NULL);
-	sdio_release_host(bus->func);
-	return 0;
-}
-
-static int wfx_sdio_irq_unsubscribe(void *priv)
-{
-	struct wfx_sdio_priv *bus = priv;
-	int ret;
-
-	if (bus->of_irq)
-		devm_free_irq(&bus->func->dev, bus->of_irq, bus);
-	sdio_claim_host(bus->func);
-	ret = sdio_release_irq(bus->func);
-	sdio_release_host(bus->func);
-	return ret;
-}
-
-static size_t wfx_sdio_align_size(void *priv, size_t size)
-{
-	struct wfx_sdio_priv *bus = priv;
-
-	return sdio_align_size(bus->func, size);
-}
-
-static const struct wfx_hwbus_ops wfx_sdio_hwbus_ops = {
-	.copy_from_io    = wfx_sdio_copy_from_io,
-	.copy_to_io      = wfx_sdio_copy_to_io,
-	.irq_subscribe   = wfx_sdio_irq_subscribe,
-	.irq_unsubscribe = wfx_sdio_irq_unsubscribe,
-	.lock            = wfx_sdio_lock,
-	.unlock          = wfx_sdio_unlock,
-	.align_size      = wfx_sdio_align_size,
-};
-
-static const struct of_device_id wfx_sdio_of_match[] = {
-	{ .compatible = "silabs,wf200",    .data = &pdata_wf200 },
-	{ .compatible = "silabs,brd4001a", .data = &pdata_brd4001a },
-	{ .compatible = "silabs,brd8022a", .data = &pdata_brd8022a },
-	{ .compatible = "silabs,brd8023a", .data = &pdata_brd8023a },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, wfx_sdio_of_match);
-
-static int wfx_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
-{
-	const struct wfx_platform_data *pdata = of_device_get_match_data(&func->dev);
-	struct device_node *np = func->dev.of_node;
-	struct wfx_sdio_priv *bus;
-	int ret;
-
-	if (func->num != 1) {
-		dev_err(&func->dev, "SDIO function number is %d while it should always be 1 (unsupported chip?)\n",
-			func->num);
-		return -ENODEV;
-	}
-
-	if (!pdata) {
-		dev_warn(&func->dev, "no compatible device found in DT\n");
-		return -ENODEV;
-	}
-
-	bus = devm_kzalloc(&func->dev, sizeof(*bus), GFP_KERNEL);
-	if (!bus)
-		return -ENOMEM;
-
-	bus->func = func;
-	bus->of_irq = irq_of_parse_and_map(np, 0);
-	sdio_set_drvdata(func, bus);
-
-	sdio_claim_host(func);
-	ret = sdio_enable_func(func);
-	/* Block of 64 bytes is more efficient than 512B for frame sizes < 4k */
-	sdio_set_block_size(func, 64);
-	sdio_release_host(func);
-	if (ret)
-		return ret;
-
-	bus->core = wfx_init_common(&func->dev, pdata, &wfx_sdio_hwbus_ops, bus);
-	if (!bus->core) {
-		ret = -EIO;
-		goto sdio_release;
-	}
-
-	ret = wfx_probe(bus->core);
-	if (ret)
-		goto sdio_release;
-
-	return 0;
-
-sdio_release:
-	sdio_claim_host(func);
-	sdio_disable_func(func);
-	sdio_release_host(func);
-	return ret;
-}
-
-static void wfx_sdio_remove(struct sdio_func *func)
-{
-	struct wfx_sdio_priv *bus = sdio_get_drvdata(func);
-
-	wfx_release(bus->core);
-	sdio_claim_host(func);
-	sdio_disable_func(func);
-	sdio_release_host(func);
-}
-
-static const struct sdio_device_id wfx_sdio_ids[] = {
-	/* WF200 does not have official VID/PID */
-	{ SDIO_DEVICE(0x0000, 0x1000) },
-	{ },
-};
-MODULE_DEVICE_TABLE(sdio, wfx_sdio_ids);
-
-struct sdio_driver wfx_sdio_driver = {
-	.name = "wfx-sdio",
-	.id_table = wfx_sdio_ids,
-	.probe = wfx_sdio_probe,
-	.remove = wfx_sdio_remove,
-	.drv = {
-		.owner = THIS_MODULE,
-		.of_match_table = wfx_sdio_of_match,
-	}
-};
diff --git a/drivers/staging/wfx/bus_spi.c b/drivers/staging/wfx/bus_spi.c
deleted file mode 100644
index 7fb1afb8ed31..000000000000
--- a/drivers/staging/wfx/bus_spi.c
+++ /dev/null
@@ -1,284 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * SPI interface.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2011, Sagrad Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/gpio/consumer.h>
-#include <linux/spi/spi.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/of.h>
-
-#include "bus.h"
-#include "wfx.h"
-#include "hwio.h"
-#include "main.h"
-#include "bh.h"
-
-#define SET_WRITE 0x7FFF        /* usage: and operation */
-#define SET_READ 0x8000         /* usage: or operation */
-
-static const struct wfx_platform_data pdata_wf200 = {
-	.file_fw = "wfx/wfm_wf200",
-	.file_pds = "wfx/wf200.pds",
-	.use_rising_clk = true,
-};
-
-static const struct wfx_platform_data pdata_brd4001a = {
-	.file_fw = "wfx/wfm_wf200",
-	.file_pds = "wfx/brd4001a.pds",
-	.use_rising_clk = true,
-};
-
-static const struct wfx_platform_data pdata_brd8022a = {
-	.file_fw = "wfx/wfm_wf200",
-	.file_pds = "wfx/brd8022a.pds",
-	.use_rising_clk = true,
-};
-
-static const struct wfx_platform_data pdata_brd8023a = {
-	.file_fw = "wfx/wfm_wf200",
-	.file_pds = "wfx/brd8023a.pds",
-	.use_rising_clk = true,
-};
-
-struct wfx_spi_priv {
-	struct spi_device *func;
-	struct wfx_dev *core;
-	struct gpio_desc *gpio_reset;
-	bool need_swab;
-};
-
-/* The chip reads 16bits of data at time and place them directly into (little endian) CPU register.
- * So, the chip expects bytes order to be "B1 B0 B3 B2" (while LE is "B0 B1 B2 B3" and BE is
- * "B3 B2 B1 B0")
- *
- * A little endian host with bits_per_word == 16 should do the right job natively. The code below to
- * support big endian host and commonly used SPI 8bits.
- */
-static int wfx_spi_copy_from_io(void *priv, unsigned int addr, void *dst, size_t count)
-{
-	struct wfx_spi_priv *bus = priv;
-	u16 regaddr = (addr << 12) | (count / 2) | SET_READ;
-	struct spi_message m;
-	struct spi_transfer t_addr = {
-		.tx_buf = &regaddr,
-		.len = sizeof(regaddr),
-	};
-	struct spi_transfer t_msg = {
-		.rx_buf = dst,
-		.len = count,
-	};
-	u16 *dst16 = dst;
-	int ret, i;
-
-	WARN(count % 2, "buffer size must be a multiple of 2");
-
-	cpu_to_le16s(&regaddr);
-	if (bus->need_swab)
-		swab16s(&regaddr);
-
-	spi_message_init(&m);
-	spi_message_add_tail(&t_addr, &m);
-	spi_message_add_tail(&t_msg, &m);
-	ret = spi_sync(bus->func, &m);
-
-	if (bus->need_swab && addr == WFX_REG_CONFIG)
-		for (i = 0; i < count / 2; i++)
-			swab16s(&dst16[i]);
-	return ret;
-}
-
-static int wfx_spi_copy_to_io(void *priv, unsigned int addr, const void *src, size_t count)
-{
-	struct wfx_spi_priv *bus = priv;
-	u16 regaddr = (addr << 12) | (count / 2);
-	/* FIXME: use a bounce buffer */
-	u16 *src16 = (void *)src;
-	int ret, i;
-	struct spi_message m;
-	struct spi_transfer t_addr = {
-		.tx_buf = &regaddr,
-		.len = sizeof(regaddr),
-	};
-	struct spi_transfer t_msg = {
-		.tx_buf = src,
-		.len = count,
-	};
-
-	WARN(count % 2, "buffer size must be a multiple of 2");
-	WARN(regaddr & SET_READ, "bad addr or size overflow");
-
-	cpu_to_le16s(&regaddr);
-
-	/* Register address and CONFIG content always use 16bit big endian
-	 * ("BADC" order)
-	 */
-	if (bus->need_swab)
-		swab16s(&regaddr);
-	if (bus->need_swab && addr == WFX_REG_CONFIG)
-		for (i = 0; i < count / 2; i++)
-			swab16s(&src16[i]);
-
-	spi_message_init(&m);
-	spi_message_add_tail(&t_addr, &m);
-	spi_message_add_tail(&t_msg, &m);
-	ret = spi_sync(bus->func, &m);
-
-	if (bus->need_swab && addr == WFX_REG_CONFIG)
-		for (i = 0; i < count / 2; i++)
-			swab16s(&src16[i]);
-	return ret;
-}
-
-static void wfx_spi_lock(void *priv)
-{
-}
-
-static void wfx_spi_unlock(void *priv)
-{
-}
-
-static irqreturn_t wfx_spi_irq_handler(int irq, void *priv)
-{
-	struct wfx_spi_priv *bus = priv;
-
-	wfx_bh_request_rx(bus->core);
-	return IRQ_HANDLED;
-}
-
-static int wfx_spi_irq_subscribe(void *priv)
-{
-	struct wfx_spi_priv *bus = priv;
-	u32 flags;
-
-	flags = irq_get_trigger_type(bus->func->irq);
-	if (!flags)
-		flags = IRQF_TRIGGER_HIGH;
-	flags |= IRQF_ONESHOT;
-	return devm_request_threaded_irq(&bus->func->dev, bus->func->irq, NULL,
-					 wfx_spi_irq_handler, flags, "wfx", bus);
-}
-
-static int wfx_spi_irq_unsubscribe(void *priv)
-{
-	struct wfx_spi_priv *bus = priv;
-
-	devm_free_irq(&bus->func->dev, bus->func->irq, bus);
-	return 0;
-}
-
-static size_t wfx_spi_align_size(void *priv, size_t size)
-{
-	/* Most of SPI controllers avoid DMA if buffer size is not 32bit aligned */
-	return ALIGN(size, 4);
-}
-
-static const struct wfx_hwbus_ops wfx_spi_hwbus_ops = {
-	.copy_from_io    = wfx_spi_copy_from_io,
-	.copy_to_io      = wfx_spi_copy_to_io,
-	.irq_subscribe   = wfx_spi_irq_subscribe,
-	.irq_unsubscribe = wfx_spi_irq_unsubscribe,
-	.lock            = wfx_spi_lock,
-	.unlock          = wfx_spi_unlock,
-	.align_size      = wfx_spi_align_size,
-};
-
-static int wfx_spi_probe(struct spi_device *func)
-{
-	struct wfx_platform_data *pdata;
-	struct wfx_spi_priv *bus;
-	int ret;
-
-	if (!func->bits_per_word)
-		func->bits_per_word = 16;
-	ret = spi_setup(func);
-	if (ret)
-		return ret;
-	pdata = (struct wfx_platform_data *)spi_get_device_id(func)->driver_data;
-	if (!pdata) {
-		dev_err(&func->dev, "unable to retrieve driver data (please report)\n");
-		return -ENODEV;
-	}
-
-	/* Trace below is also displayed by spi_setup() if compiled with DEBUG */
-	dev_dbg(&func->dev, "SPI params: CS=%d, mode=%d bits/word=%d speed=%d\n",
-		func->chip_select, func->mode, func->bits_per_word, func->max_speed_hz);
-	if (func->bits_per_word != 16 && func->bits_per_word != 8)
-		dev_warn(&func->dev, "unusual bits/word value: %d\n", func->bits_per_word);
-	if (func->max_speed_hz > 50000000)
-		dev_warn(&func->dev, "%dHz is a very high speed\n", func->max_speed_hz);
-
-	bus = devm_kzalloc(&func->dev, sizeof(*bus), GFP_KERNEL);
-	if (!bus)
-		return -ENOMEM;
-	bus->func = func;
-	if (func->bits_per_word == 8 || IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
-		bus->need_swab = true;
-	spi_set_drvdata(func, bus);
-
-	bus->gpio_reset = devm_gpiod_get_optional(&func->dev, "reset", GPIOD_OUT_LOW);
-	if (IS_ERR(bus->gpio_reset))
-		return PTR_ERR(bus->gpio_reset);
-	if (!bus->gpio_reset) {
-		dev_warn(&func->dev, "gpio reset is not defined, trying to load firmware anyway\n");
-	} else {
-		gpiod_set_consumer_name(bus->gpio_reset, "wfx reset");
-		gpiod_set_value_cansleep(bus->gpio_reset, 1);
-		usleep_range(100, 150);
-		gpiod_set_value_cansleep(bus->gpio_reset, 0);
-		usleep_range(2000, 2500);
-	}
-
-	bus->core = wfx_init_common(&func->dev, pdata, &wfx_spi_hwbus_ops, bus);
-	if (!bus->core)
-		return -EIO;
-
-	return wfx_probe(bus->core);
-}
-
-static void wfx_spi_remove(struct spi_device *func)
-{
-	struct wfx_spi_priv *bus = spi_get_drvdata(func);
-
-	wfx_release(bus->core);
-}
-
-/* For dynamic driver binding, kernel does not use OF to match driver. It only
- * use modalias and modalias is a copy of 'compatible' DT node with vendor
- * stripped.
- */
-static const struct spi_device_id wfx_spi_id[] = {
-	{ "wf200",    (kernel_ulong_t)&pdata_wf200 },
-	{ "brd4001a", (kernel_ulong_t)&pdata_brd4001a },
-	{ "brd8022a", (kernel_ulong_t)&pdata_brd8022a },
-	{ "brd8023a", (kernel_ulong_t)&pdata_brd8023a },
-	{ },
-};
-MODULE_DEVICE_TABLE(spi, wfx_spi_id);
-
-#ifdef CONFIG_OF
-static const struct of_device_id wfx_spi_of_match[] = {
-	{ .compatible = "silabs,wf200" },
-	{ .compatible = "silabs,brd4001a" },
-	{ .compatible = "silabs,brd8022a" },
-	{ .compatible = "silabs,brd8023a" },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, wfx_spi_of_match);
-#endif
-
-struct spi_driver wfx_spi_driver = {
-	.driver = {
-		.name = "wfx-spi",
-		.of_match_table = of_match_ptr(wfx_spi_of_match),
-	},
-	.id_table = wfx_spi_id,
-	.probe = wfx_spi_probe,
-	.remove = wfx_spi_remove,
-};
diff --git a/drivers/staging/wfx/data_rx.c b/drivers/staging/wfx/data_rx.c
deleted file mode 100644
index a4b5ffe158e4..000000000000
--- a/drivers/staging/wfx/data_rx.c
+++ /dev/null
@@ -1,92 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Data receiving implementation.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/etherdevice.h>
-#include <net/mac80211.h>
-
-#include "data_rx.h"
-#include "wfx.h"
-#include "bh.h"
-#include "sta.h"
-
-static void wfx_rx_handle_ba(struct wfx_vif *wvif, struct ieee80211_mgmt *mgmt)
-{
-	int params, tid;
-
-	if (wfx_api_older_than(wvif->wdev, 3, 6))
-		return;
-
-	switch (mgmt->u.action.u.addba_req.action_code) {
-	case WLAN_ACTION_ADDBA_REQ:
-		params = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
-		tid = (params & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
-		ieee80211_start_rx_ba_session_offl(wvif->vif, mgmt->sa, tid);
-		break;
-	case WLAN_ACTION_DELBA:
-		params = le16_to_cpu(mgmt->u.action.u.delba.params);
-		tid = (params &  IEEE80211_DELBA_PARAM_TID_MASK) >> 12;
-		ieee80211_stop_rx_ba_session_offl(wvif->vif, mgmt->sa, tid);
-		break;
-	}
-}
-
-void wfx_rx_cb(struct wfx_vif *wvif, const struct wfx_hif_ind_rx *arg, struct sk_buff *skb)
-{
-	struct ieee80211_rx_status *hdr = IEEE80211_SKB_RXCB(skb);
-	struct ieee80211_hdr *frame = (struct ieee80211_hdr *)skb->data;
-	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
-
-	memset(hdr, 0, sizeof(*hdr));
-
-	if (arg->status == HIF_STATUS_RX_FAIL_MIC)
-		hdr->flag |= RX_FLAG_MMIC_ERROR | RX_FLAG_IV_STRIPPED;
-	else if (arg->status)
-		goto drop;
-
-	if (skb->len < sizeof(struct ieee80211_pspoll)) {
-		dev_warn(wvif->wdev->dev, "malformed SDU received\n");
-		goto drop;
-	}
-
-	hdr->band = NL80211_BAND_2GHZ;
-	hdr->freq = ieee80211_channel_to_frequency(arg->channel_number, hdr->band);
-
-	if (arg->rxed_rate >= 14) {
-		hdr->encoding = RX_ENC_HT;
-		hdr->rate_idx = arg->rxed_rate - 14;
-	} else if (arg->rxed_rate >= 4) {
-		hdr->rate_idx = arg->rxed_rate - 2;
-	} else {
-		hdr->rate_idx = arg->rxed_rate;
-	}
-
-	if (!arg->rcpi_rssi) {
-		hdr->flag |= RX_FLAG_NO_SIGNAL_VAL;
-		dev_info(wvif->wdev->dev, "received frame without RSSI data\n");
-	}
-	hdr->signal = arg->rcpi_rssi / 2 - 110;
-	hdr->antenna = 0;
-
-	if (arg->encryp)
-		hdr->flag |= RX_FLAG_DECRYPTED;
-
-	/* Block ack negotiation is offloaded by the firmware. However, re-ordering must be done by
-	 * the mac80211.
-	 */
-	if (ieee80211_is_action(frame->frame_control) &&
-	    mgmt->u.action.category == WLAN_CATEGORY_BACK &&
-	    skb->len > IEEE80211_MIN_ACTION_SIZE) {
-		wfx_rx_handle_ba(wvif, mgmt);
-		goto drop;
-	}
-
-	ieee80211_rx_irqsafe(wvif->wdev->hw, skb);
-	return;
-
-drop:
-	dev_kfree_skb(skb);
-}
diff --git a/drivers/staging/wfx/data_rx.h b/drivers/staging/wfx/data_rx.h
deleted file mode 100644
index cf708f16d602..000000000000
--- a/drivers/staging/wfx/data_rx.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Data receiving implementation.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#ifndef WFX_DATA_RX_H
-#define WFX_DATA_RX_H
-
-struct wfx_vif;
-struct sk_buff;
-struct wfx_hif_ind_rx;
-
-void wfx_rx_cb(struct wfx_vif *wvif, const struct wfx_hif_ind_rx *arg, struct sk_buff *skb);
-
-#endif
diff --git a/drivers/staging/wfx/data_tx.c b/drivers/staging/wfx/data_tx.c
deleted file mode 100644
index e07381b2ff4d..000000000000
--- a/drivers/staging/wfx/data_tx.c
+++ /dev/null
@@ -1,568 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Data transmitting implementation.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <net/mac80211.h>
-#include <linux/etherdevice.h>
-
-#include "data_tx.h"
-#include "wfx.h"
-#include "bh.h"
-#include "sta.h"
-#include "queue.h"
-#include "debug.h"
-#include "traces.h"
-#include "hif_tx_mib.h"
-
-static int wfx_get_hw_rate(struct wfx_dev *wdev, const struct ieee80211_tx_rate *rate)
-{
-	struct ieee80211_supported_band *band;
-
-	if (rate->idx < 0)
-		return -1;
-	if (rate->flags & IEEE80211_TX_RC_MCS) {
-		if (rate->idx > 7) {
-			WARN(1, "wrong rate->idx value: %d", rate->idx);
-			return -1;
-		}
-		return rate->idx + 14;
-	}
-	/* The device only support 2GHz, else band information should be retrieved from
-	 * ieee80211_tx_info
-	 */
-	band = wdev->hw->wiphy->bands[NL80211_BAND_2GHZ];
-	if (rate->idx >= band->n_bitrates) {
-		WARN(1, "wrong rate->idx value: %d", rate->idx);
-		return -1;
-	}
-	return band->bitrates[rate->idx].hw_value;
-}
-
-/* TX policy cache implementation */
-
-static void wfx_tx_policy_build(struct wfx_vif *wvif, struct wfx_tx_policy *policy,
-				struct ieee80211_tx_rate *rates)
-{
-	struct wfx_dev *wdev = wvif->wdev;
-	int i, rateid;
-	u8 count;
-
-	WARN(rates[0].idx < 0, "invalid rate policy");
-	memset(policy, 0, sizeof(*policy));
-	for (i = 0; i < IEEE80211_TX_MAX_RATES; ++i) {
-		if (rates[i].idx < 0)
-			break;
-		WARN_ON(rates[i].count > 15);
-		rateid = wfx_get_hw_rate(wdev, &rates[i]);
-		/* Pack two values in each byte of policy->rates */
-		count = rates[i].count;
-		if (rateid % 2)
-			count <<= 4;
-		policy->rates[rateid / 2] |= count;
-	}
-}
-
-static bool wfx_tx_policy_is_equal(const struct wfx_tx_policy *a, const struct wfx_tx_policy *b)
-{
-	return !memcmp(a->rates, b->rates, sizeof(a->rates));
-}
-
-static int wfx_tx_policy_find(struct wfx_tx_policy_cache *cache, struct wfx_tx_policy *wanted)
-{
-	struct wfx_tx_policy *it;
-
-	list_for_each_entry(it, &cache->used, link)
-		if (wfx_tx_policy_is_equal(wanted, it))
-			return it - cache->cache;
-	list_for_each_entry(it, &cache->free, link)
-		if (wfx_tx_policy_is_equal(wanted, it))
-			return it - cache->cache;
-	return -1;
-}
-
-static void wfx_tx_policy_use(struct wfx_tx_policy_cache *cache, struct wfx_tx_policy *entry)
-{
-	++entry->usage_count;
-	list_move(&entry->link, &cache->used);
-}
-
-static int wfx_tx_policy_release(struct wfx_tx_policy_cache *cache, struct wfx_tx_policy *entry)
-{
-	int ret = --entry->usage_count;
-
-	if (!ret)
-		list_move(&entry->link, &cache->free);
-	return ret;
-}
-
-static int wfx_tx_policy_get(struct wfx_vif *wvif, struct ieee80211_tx_rate *rates, bool *renew)
-{
-	int idx;
-	struct wfx_tx_policy_cache *cache = &wvif->tx_policy_cache;
-	struct wfx_tx_policy wanted;
-	struct wfx_tx_policy *entry;
-
-	wfx_tx_policy_build(wvif, &wanted, rates);
-
-	spin_lock_bh(&cache->lock);
-	if (list_empty(&cache->free)) {
-		WARN(1, "unable to get a valid Tx policy");
-		spin_unlock_bh(&cache->lock);
-		return HIF_TX_RETRY_POLICY_INVALID;
-	}
-	idx = wfx_tx_policy_find(cache, &wanted);
-	if (idx >= 0) {
-		*renew = false;
-	} else {
-		/* If policy is not found create a new one using the oldest entry in "free" list */
-		*renew = true;
-		entry = list_entry(cache->free.prev, struct wfx_tx_policy, link);
-		memcpy(entry->rates, wanted.rates, sizeof(entry->rates));
-		entry->uploaded = false;
-		entry->usage_count = 0;
-		idx = entry - cache->cache;
-	}
-	wfx_tx_policy_use(cache, &cache->cache[idx]);
-	if (list_empty(&cache->free))
-		ieee80211_stop_queues(wvif->wdev->hw);
-	spin_unlock_bh(&cache->lock);
-	return idx;
-}
-
-static void wfx_tx_policy_put(struct wfx_vif *wvif, int idx)
-{
-	int usage, locked;
-	struct wfx_tx_policy_cache *cache = &wvif->tx_policy_cache;
-
-	if (idx == HIF_TX_RETRY_POLICY_INVALID)
-		return;
-	spin_lock_bh(&cache->lock);
-	locked = list_empty(&cache->free);
-	usage = wfx_tx_policy_release(cache, &cache->cache[idx]);
-	if (locked && !usage)
-		ieee80211_wake_queues(wvif->wdev->hw);
-	spin_unlock_bh(&cache->lock);
-}
-
-static int wfx_tx_policy_upload(struct wfx_vif *wvif)
-{
-	struct wfx_tx_policy *policies = wvif->tx_policy_cache.cache;
-	u8 tmp_rates[12];
-	int i, is_used;
-
-	do {
-		spin_lock_bh(&wvif->tx_policy_cache.lock);
-		for (i = 0; i < ARRAY_SIZE(wvif->tx_policy_cache.cache); ++i) {
-			is_used = memzcmp(policies[i].rates, sizeof(policies[i].rates));
-			if (!policies[i].uploaded && is_used)
-				break;
-		}
-		if (i < ARRAY_SIZE(wvif->tx_policy_cache.cache)) {
-			policies[i].uploaded = true;
-			memcpy(tmp_rates, policies[i].rates, sizeof(tmp_rates));
-			spin_unlock_bh(&wvif->tx_policy_cache.lock);
-			wfx_hif_set_tx_rate_retry_policy(wvif, i, tmp_rates);
-		} else {
-			spin_unlock_bh(&wvif->tx_policy_cache.lock);
-		}
-	} while (i < ARRAY_SIZE(wvif->tx_policy_cache.cache));
-	return 0;
-}
-
-void wfx_tx_policy_upload_work(struct work_struct *work)
-{
-	struct wfx_vif *wvif = container_of(work, struct wfx_vif, tx_policy_upload_work);
-
-	wfx_tx_policy_upload(wvif);
-	wfx_tx_unlock(wvif->wdev);
-}
-
-void wfx_tx_policy_init(struct wfx_vif *wvif)
-{
-	struct wfx_tx_policy_cache *cache = &wvif->tx_policy_cache;
-	int i;
-
-	memset(cache, 0, sizeof(*cache));
-
-	spin_lock_init(&cache->lock);
-	INIT_LIST_HEAD(&cache->used);
-	INIT_LIST_HEAD(&cache->free);
-
-	for (i = 0; i < ARRAY_SIZE(cache->cache); ++i)
-		list_add(&cache->cache[i].link, &cache->free);
-}
-
-/* Tx implementation */
-
-static bool wfx_is_action_back(struct ieee80211_hdr *hdr)
-{
-	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)hdr;
-
-	if (!ieee80211_is_action(mgmt->frame_control))
-		return false;
-	if (mgmt->u.action.category != WLAN_CATEGORY_BACK)
-		return false;
-	return true;
-}
-
-static u8 wfx_tx_get_link_id(struct wfx_vif *wvif, struct ieee80211_sta *sta,
-			     struct ieee80211_hdr *hdr)
-{
-	struct wfx_sta_priv *sta_priv = sta ? (struct wfx_sta_priv *)&sta->drv_priv : NULL;
-	const u8 *da = ieee80211_get_DA(hdr);
-
-	if (sta_priv && sta_priv->link_id)
-		return sta_priv->link_id;
-	if (wvif->vif->type != NL80211_IFTYPE_AP)
-		return 0;
-	if (is_multicast_ether_addr(da))
-		return 0;
-	return HIF_LINK_ID_NOT_ASSOCIATED;
-}
-
-static void wfx_tx_fixup_rates(struct ieee80211_tx_rate *rates)
-{
-	int i;
-	bool finished;
-
-	/* Firmware is not able to mix rates with different flags */
-	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
-		if (rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
-			rates[i].flags |= IEEE80211_TX_RC_SHORT_GI;
-		if (!(rates[0].flags & IEEE80211_TX_RC_SHORT_GI))
-			rates[i].flags &= ~IEEE80211_TX_RC_SHORT_GI;
-		if (!(rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS))
-			rates[i].flags &= ~IEEE80211_TX_RC_USE_RTS_CTS;
-	}
-
-	/* Sort rates and remove duplicates */
-	do {
-		finished = true;
-		for (i = 0; i < IEEE80211_TX_MAX_RATES - 1; i++) {
-			if (rates[i + 1].idx == rates[i].idx &&
-			    rates[i].idx != -1) {
-				rates[i].count += rates[i + 1].count;
-				if (rates[i].count > 15)
-					rates[i].count = 15;
-				rates[i + 1].idx = -1;
-				rates[i + 1].count = 0;
-
-				finished = false;
-			}
-			if (rates[i + 1].idx > rates[i].idx) {
-				swap(rates[i + 1], rates[i]);
-				finished = false;
-			}
-		}
-	} while (!finished);
-	/* Ensure that MCS0 or 1Mbps is present at the end of the retry list */
-	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
-		if (rates[i].idx == 0)
-			break;
-		if (rates[i].idx == -1) {
-			rates[i].idx = 0;
-			rates[i].count = 8; /* == hw->max_rate_tries */
-			rates[i].flags = rates[i - 1].flags & IEEE80211_TX_RC_MCS;
-			break;
-		}
-	}
-	/* All retries use long GI */
-	for (i = 1; i < IEEE80211_TX_MAX_RATES; i++)
-		rates[i].flags &= ~IEEE80211_TX_RC_SHORT_GI;
-}
-
-static u8 wfx_tx_get_retry_policy_id(struct wfx_vif *wvif, struct ieee80211_tx_info *tx_info)
-{
-	bool tx_policy_renew = false;
-	u8 ret;
-
-	ret = wfx_tx_policy_get(wvif, tx_info->driver_rates, &tx_policy_renew);
-	if (ret == HIF_TX_RETRY_POLICY_INVALID)
-		dev_warn(wvif->wdev->dev, "unable to get a valid Tx policy");
-
-	if (tx_policy_renew) {
-		wfx_tx_lock(wvif->wdev);
-		if (!schedule_work(&wvif->tx_policy_upload_work))
-			wfx_tx_unlock(wvif->wdev);
-	}
-	return ret;
-}
-
-static int wfx_tx_get_frame_format(struct ieee80211_tx_info *tx_info)
-{
-	if (!(tx_info->driver_rates[0].flags & IEEE80211_TX_RC_MCS))
-		return HIF_FRAME_FORMAT_NON_HT;
-	else if (!(tx_info->driver_rates[0].flags & IEEE80211_TX_RC_GREEN_FIELD))
-		return HIF_FRAME_FORMAT_MIXED_FORMAT_HT;
-	else
-		return HIF_FRAME_FORMAT_GF_HT_11N;
-}
-
-static int wfx_tx_get_icv_len(struct ieee80211_key_conf *hw_key)
-{
-	int mic_space;
-
-	if (!hw_key)
-		return 0;
-	if (hw_key->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
-		return 0;
-	mic_space = (hw_key->cipher == WLAN_CIPHER_SUITE_TKIP) ? 8 : 0;
-	return hw_key->icv_len + mic_space;
-}
-
-static int wfx_tx_inner(struct wfx_vif *wvif, struct ieee80211_sta *sta, struct sk_buff *skb)
-{
-	struct wfx_hif_msg *hif_msg;
-	struct wfx_hif_req_tx *req;
-	struct wfx_tx_priv *tx_priv;
-	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_key_conf *hw_key = tx_info->control.hw_key;
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	int queue_id = skb_get_queue_mapping(skb);
-	size_t offset = (size_t)skb->data & 3;
-	int wmsg_len = sizeof(struct wfx_hif_msg) + sizeof(struct wfx_hif_req_tx) + offset;
-
-	WARN(queue_id >= IEEE80211_NUM_ACS, "unsupported queue_id");
-	wfx_tx_fixup_rates(tx_info->driver_rates);
-
-	/* From now tx_info->control is unusable */
-	memset(tx_info->rate_driver_data, 0, sizeof(struct wfx_tx_priv));
-	/* Fill tx_priv */
-	tx_priv = (struct wfx_tx_priv *)tx_info->rate_driver_data;
-	tx_priv->icv_size = wfx_tx_get_icv_len(hw_key);
-
-	/* Fill hif_msg */
-	WARN(skb_headroom(skb) < wmsg_len, "not enough space in skb");
-	WARN(offset & 1, "attempt to transmit an unaligned frame");
-	skb_put(skb, tx_priv->icv_size);
-	skb_push(skb, wmsg_len);
-	memset(skb->data, 0, wmsg_len);
-	hif_msg = (struct wfx_hif_msg *)skb->data;
-	hif_msg->len = cpu_to_le16(skb->len);
-	hif_msg->id = HIF_REQ_ID_TX;
-	hif_msg->interface = wvif->id;
-	if (skb->len > le16_to_cpu(wvif->wdev->hw_caps.size_inp_ch_buf)) {
-		dev_warn(wvif->wdev->dev,
-			 "requested frame size (%d) is larger than maximum supported (%d)\n",
-			 skb->len, le16_to_cpu(wvif->wdev->hw_caps.size_inp_ch_buf));
-		skb_pull(skb, wmsg_len);
-		return -EIO;
-	}
-
-	/* Fill tx request */
-	req = (struct wfx_hif_req_tx *)hif_msg->body;
-	/* packet_id just need to be unique on device. 32bits are more than necessary for that task,
-	 * so we take advantage of it to add some extra data for debug.
-	 */
-	req->packet_id = atomic_add_return(1, &wvif->wdev->packet_id) & 0xFFFF;
-	req->packet_id |= IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl)) << 16;
-	req->packet_id |= queue_id << 28;
-
-	req->fc_offset = offset;
-	/* Queue index are inverted between firmware and Linux */
-	req->queue_id = 3 - queue_id;
-	req->peer_sta_id = wfx_tx_get_link_id(wvif, sta, hdr);
-	req->retry_policy_index = wfx_tx_get_retry_policy_id(wvif, tx_info);
-	req->frame_format = wfx_tx_get_frame_format(tx_info);
-	if (tx_info->driver_rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
-		req->short_gi = 1;
-	if (tx_info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM)
-		req->after_dtim = 1;
-
-	/* Auxiliary operations */
-	wfx_tx_queues_put(wvif, skb);
-	if (tx_info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM)
-		schedule_work(&wvif->update_tim_work);
-	wfx_bh_request_tx(wvif->wdev);
-	return 0;
-}
-
-void wfx_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control, struct sk_buff *skb)
-{
-	struct wfx_dev *wdev = hw->priv;
-	struct wfx_vif *wvif;
-	struct ieee80211_sta *sta = control ? control->sta : NULL;
-	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	size_t driver_data_room = sizeof_field(struct ieee80211_tx_info, rate_driver_data);
-
-	BUILD_BUG_ON_MSG(sizeof(struct wfx_tx_priv) > driver_data_room,
-			 "struct tx_priv is too large");
-	WARN(skb->next || skb->prev, "skb is already member of a list");
-	/* control.vif can be NULL for injected frames */
-	if (tx_info->control.vif)
-		wvif = (struct wfx_vif *)tx_info->control.vif->drv_priv;
-	else
-		wvif = wvif_iterate(wdev, NULL);
-	if (WARN_ON(!wvif))
-		goto drop;
-	/* Because of TX_AMPDU_SETUP_IN_HW, mac80211 does not try to send any BlockAck session
-	 * management frame. The check below exist just in case.
-	 */
-	if (wfx_is_action_back(hdr)) {
-		dev_info(wdev->dev, "drop BA action\n");
-		goto drop;
-	}
-	if (wfx_tx_inner(wvif, sta, skb))
-		goto drop;
-
-	return;
-
-drop:
-	ieee80211_tx_status_irqsafe(wdev->hw, skb);
-}
-
-static void wfx_skb_dtor(struct wfx_vif *wvif, struct sk_buff *skb)
-{
-	struct wfx_hif_msg *hif = (struct wfx_hif_msg *)skb->data;
-	struct wfx_hif_req_tx *req = (struct wfx_hif_req_tx *)hif->body;
-	unsigned int offset = sizeof(struct wfx_hif_msg) + sizeof(struct wfx_hif_req_tx) +
-			      req->fc_offset;
-
-	if (!wvif) {
-		pr_warn("vif associated with the skb does not exist anymore\n");
-		return;
-	}
-	wfx_tx_policy_put(wvif, req->retry_policy_index);
-	skb_pull(skb, offset);
-	ieee80211_tx_status_irqsafe(wvif->wdev->hw, skb);
-}
-
-static void wfx_tx_fill_rates(struct wfx_dev *wdev, struct ieee80211_tx_info *tx_info,
-			      const struct wfx_hif_cnf_tx *arg)
-{
-	struct ieee80211_tx_rate *rate;
-	int tx_count;
-	int i;
-
-	tx_count = arg->ack_failures;
-	if (!arg->status || arg->ack_failures)
-		tx_count += 1; /* Also report success */
-	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
-		rate = &tx_info->status.rates[i];
-		if (rate->idx < 0)
-			break;
-		if (tx_count < rate->count && arg->status == HIF_STATUS_TX_FAIL_RETRIES &&
-		    arg->ack_failures)
-			dev_dbg(wdev->dev, "all retries were not consumed: %d != %d\n",
-				rate->count, tx_count);
-		if (tx_count <= rate->count && tx_count &&
-		    arg->txed_rate != wfx_get_hw_rate(wdev, rate))
-			dev_dbg(wdev->dev, "inconsistent tx_info rates: %d != %d\n",
-				arg->txed_rate, wfx_get_hw_rate(wdev, rate));
-		if (tx_count > rate->count) {
-			tx_count -= rate->count;
-		} else if (!tx_count) {
-			rate->count = 0;
-			rate->idx = -1;
-		} else {
-			rate->count = tx_count;
-			tx_count = 0;
-		}
-	}
-	if (tx_count)
-		dev_dbg(wdev->dev, "%d more retries than expected\n", tx_count);
-}
-
-void wfx_tx_confirm_cb(struct wfx_dev *wdev, const struct wfx_hif_cnf_tx *arg)
-{
-	const struct wfx_tx_priv *tx_priv;
-	struct ieee80211_tx_info *tx_info;
-	struct wfx_vif *wvif;
-	struct sk_buff *skb;
-
-	skb = wfx_pending_get(wdev, arg->packet_id);
-	if (!skb) {
-		dev_warn(wdev->dev, "received unknown packet_id (%#.8x) from chip\n",
-			 arg->packet_id);
-		return;
-	}
-	tx_info = IEEE80211_SKB_CB(skb);
-	tx_priv = wfx_skb_tx_priv(skb);
-	wvif = wdev_to_wvif(wdev, ((struct wfx_hif_msg *)skb->data)->interface);
-	WARN_ON(!wvif);
-	if (!wvif)
-		return;
-
-	/* Note that wfx_pending_get_pkt_us_delay() get data from tx_info */
-	_trace_tx_stats(arg, skb, wfx_pending_get_pkt_us_delay(wdev, skb));
-	wfx_tx_fill_rates(wdev, tx_info, arg);
-	skb_trim(skb, skb->len - tx_priv->icv_size);
-
-	/* From now, you can touch to tx_info->status, but do not touch to tx_priv anymore */
-	/* FIXME: use ieee80211_tx_info_clear_status() */
-	memset(tx_info->rate_driver_data, 0, sizeof(tx_info->rate_driver_data));
-	memset(tx_info->pad, 0, sizeof(tx_info->pad));
-
-	if (!arg->status) {
-		tx_info->status.tx_time = le32_to_cpu(arg->media_delay) -
-					  le32_to_cpu(arg->tx_queue_delay);
-		if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK)
-			tx_info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
-		else
-			tx_info->flags |= IEEE80211_TX_STAT_ACK;
-	} else if (arg->status == HIF_STATUS_TX_FAIL_REQUEUE) {
-		WARN(!arg->requeue, "incoherent status and result_flags");
-		if (tx_info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) {
-			wvif->after_dtim_tx_allowed = false; /* DTIM period elapsed */
-			schedule_work(&wvif->update_tim_work);
-		}
-		tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
-	}
-	wfx_skb_dtor(wvif, skb);
-}
-
-static void wfx_flush_vif(struct wfx_vif *wvif, u32 queues, struct sk_buff_head *dropped)
-{
-	struct wfx_queue *queue;
-	int i;
-
-	for (i = 0; i < IEEE80211_NUM_ACS; i++) {
-		if (!(BIT(i) & queues))
-			continue;
-		queue = &wvif->tx_queue[i];
-		if (dropped)
-			wfx_tx_queue_drop(wvif, queue, dropped);
-	}
-	if (wvif->wdev->chip_frozen)
-		return;
-	for (i = 0; i < IEEE80211_NUM_ACS; i++) {
-		if (!(BIT(i) & queues))
-			continue;
-		queue = &wvif->tx_queue[i];
-		if (wait_event_timeout(wvif->wdev->tx_dequeue, wfx_tx_queue_empty(wvif, queue),
-				       msecs_to_jiffies(1000)) <= 0)
-			dev_warn(wvif->wdev->dev, "frames queued while flushing tx queues?");
-	}
-}
-
-void wfx_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u32 queues, bool drop)
-{
-	struct wfx_dev *wdev = hw->priv;
-	struct sk_buff_head dropped;
-	struct wfx_vif *wvif;
-	struct wfx_hif_msg *hif;
-	struct sk_buff *skb;
-
-	skb_queue_head_init(&dropped);
-	if (vif) {
-		wvif = (struct wfx_vif *)vif->drv_priv;
-		wfx_flush_vif(wvif, queues, drop ? &dropped : NULL);
-	} else {
-		wvif = NULL;
-		while ((wvif = wvif_iterate(wdev, wvif)) != NULL)
-			wfx_flush_vif(wvif, queues, drop ? &dropped : NULL);
-	}
-	wfx_tx_flush(wdev);
-	if (wdev->chip_frozen)
-		wfx_pending_drop(wdev, &dropped);
-	while ((skb = skb_dequeue(&dropped)) != NULL) {
-		hif = (struct wfx_hif_msg *)skb->data;
-		wvif = wdev_to_wvif(wdev, hif->interface);
-		ieee80211_tx_info_clear_status(IEEE80211_SKB_CB(skb));
-		wfx_skb_dtor(wvif, skb);
-	}
-}
diff --git a/drivers/staging/wfx/data_tx.h b/drivers/staging/wfx/data_tx.h
deleted file mode 100644
index 983470705e4b..000000000000
--- a/drivers/staging/wfx/data_tx.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Data transmitting implementation.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#ifndef WFX_DATA_TX_H
-#define WFX_DATA_TX_H
-
-#include <linux/list.h>
-#include <net/mac80211.h>
-
-#include "hif_api_cmd.h"
-#include "hif_api_mib.h"
-
-struct wfx_tx_priv;
-struct wfx_dev;
-struct wfx_vif;
-
-struct wfx_tx_policy {
-	struct list_head link;
-	int usage_count;
-	u8 rates[12];
-	bool uploaded;
-};
-
-struct wfx_tx_policy_cache {
-	struct wfx_tx_policy cache[HIF_TX_RETRY_POLICY_MAX];
-	/* FIXME: use a trees and drop hash from tx_policy */
-	struct list_head used;
-	struct list_head free;
-	spinlock_t lock;
-};
-
-struct wfx_tx_priv {
-	ktime_t xmit_timestamp;
-	unsigned char icv_size;
-};
-
-void wfx_tx_policy_init(struct wfx_vif *wvif);
-void wfx_tx_policy_upload_work(struct work_struct *work);
-
-void wfx_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control, struct sk_buff *skb);
-void wfx_tx_confirm_cb(struct wfx_dev *wdev, const struct wfx_hif_cnf_tx *arg);
-void wfx_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u32 queues, bool drop);
-
-static inline struct wfx_tx_priv *wfx_skb_tx_priv(struct sk_buff *skb)
-{
-	struct ieee80211_tx_info *tx_info;
-
-	if (!skb)
-		return NULL;
-	tx_info = IEEE80211_SKB_CB(skb);
-	return (struct wfx_tx_priv *)tx_info->rate_driver_data;
-}
-
-static inline struct wfx_hif_req_tx *wfx_skb_txreq(struct sk_buff *skb)
-{
-	struct wfx_hif_msg *hif = (struct wfx_hif_msg *)skb->data;
-	struct wfx_hif_req_tx *req = (struct wfx_hif_req_tx *)hif->body;
-
-	return req;
-}
-
-#endif
diff --git a/drivers/staging/wfx/debug.c b/drivers/staging/wfx/debug.c
deleted file mode 100644
index e8265208f9a5..000000000000
--- a/drivers/staging/wfx/debug.c
+++ /dev/null
@@ -1,331 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Debugfs interface.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/crc32.h>
-
-#include "debug.h"
-#include "wfx.h"
-#include "sta.h"
-#include "main.h"
-#include "hif_tx.h"
-#include "hif_tx_mib.h"
-
-#define CREATE_TRACE_POINTS
-#include "traces.h"
-
-static const struct trace_print_flags hif_msg_print_map[] = {
-	hif_msg_list,
-};
-
-static const struct trace_print_flags hif_mib_print_map[] = {
-	hif_mib_list,
-};
-
-static const struct trace_print_flags wfx_reg_print_map[] = {
-	wfx_reg_list,
-};
-
-static const char *get_symbol(unsigned long val, const struct trace_print_flags *symbol_array)
-{
-	int i;
-
-	for (i = 0; symbol_array[i].mask != -1; i++) {
-		if (val == symbol_array[i].mask)
-			return symbol_array[i].name;
-	}
-
-	return "unknown";
-}
-
-const char *wfx_get_hif_name(unsigned long id)
-{
-	return get_symbol(id, hif_msg_print_map);
-}
-
-const char *wfx_get_mib_name(unsigned long id)
-{
-	return get_symbol(id, hif_mib_print_map);
-}
-
-const char *wfx_get_reg_name(unsigned long id)
-{
-	return get_symbol(id, wfx_reg_print_map);
-}
-
-static int wfx_counters_show(struct seq_file *seq, void *v)
-{
-	int ret, i;
-	struct wfx_dev *wdev = seq->private;
-	struct wfx_hif_mib_extended_count_table counters[3];
-
-	for (i = 0; i < ARRAY_SIZE(counters); i++) {
-		ret = wfx_hif_get_counters_table(wdev, i, counters + i);
-		if (ret < 0)
-			return ret;
-		if (ret > 0)
-			return -EIO;
-	}
-
-	seq_printf(seq, "%-24s %12s %12s %12s\n", "", "global", "iface 0", "iface 1");
-
-#define PUT_COUNTER(name) \
-	seq_printf(seq, "%-24s %12d %12d %12d\n", #name,  \
-		   le32_to_cpu(counters[2].count_##name), \
-		   le32_to_cpu(counters[0].count_##name), \
-		   le32_to_cpu(counters[1].count_##name))
-
-	PUT_COUNTER(tx_frames);
-	PUT_COUNTER(tx_frames_multicast);
-	PUT_COUNTER(tx_frames_success);
-	PUT_COUNTER(tx_frames_retried);
-	PUT_COUNTER(tx_frames_multi_retried);
-	PUT_COUNTER(tx_frames_failed);
-
-	PUT_COUNTER(ack_failed);
-	PUT_COUNTER(rts_success);
-	PUT_COUNTER(rts_failed);
-
-	PUT_COUNTER(rx_frames);
-	PUT_COUNTER(rx_frames_multicast);
-	PUT_COUNTER(rx_frames_success);
-	PUT_COUNTER(rx_frames_failed);
-	PUT_COUNTER(drop_plcp);
-	PUT_COUNTER(drop_fcs);
-	PUT_COUNTER(drop_no_key);
-	PUT_COUNTER(drop_decryption);
-	PUT_COUNTER(drop_tkip_mic);
-	PUT_COUNTER(drop_bip_mic);
-	PUT_COUNTER(drop_cmac_icv);
-	PUT_COUNTER(drop_cmac_replay);
-	PUT_COUNTER(drop_ccmp_replay);
-	PUT_COUNTER(drop_duplicate);
-
-	PUT_COUNTER(rx_bcn_miss);
-	PUT_COUNTER(rx_bcn_success);
-	PUT_COUNTER(rx_bcn_dtim);
-	PUT_COUNTER(rx_bcn_dtim_aid0_clr);
-	PUT_COUNTER(rx_bcn_dtim_aid0_set);
-
-#undef PUT_COUNTER
-
-	for (i = 0; i < ARRAY_SIZE(counters[0].reserved); i++)
-		seq_printf(seq, "reserved[%02d]%12s %12d %12d %12d\n", i, "",
-			   le32_to_cpu(counters[2].reserved[i]),
-			   le32_to_cpu(counters[0].reserved[i]),
-			   le32_to_cpu(counters[1].reserved[i]));
-
-	return 0;
-}
-DEFINE_SHOW_ATTRIBUTE(wfx_counters);
-
-static const char * const channel_names[] = {
-	[0] = "1M",
-	[1] = "2M",
-	[2] = "5.5M",
-	[3] = "11M",
-	/* Entries 4 and 5 does not exist */
-	[6] = "6M",
-	[7] = "9M",
-	[8] = "12M",
-	[9] = "18M",
-	[10] = "24M",
-	[11] = "36M",
-	[12] = "48M",
-	[13] = "54M",
-	[14] = "MCS0",
-	[15] = "MCS1",
-	[16] = "MCS2",
-	[17] = "MCS3",
-	[18] = "MCS4",
-	[19] = "MCS5",
-	[20] = "MCS6",
-	[21] = "MCS7",
-};
-
-static int wfx_rx_stats_show(struct seq_file *seq, void *v)
-{
-	struct wfx_dev *wdev = seq->private;
-	struct wfx_hif_rx_stats *st = &wdev->rx_stats;
-	int i;
-
-	mutex_lock(&wdev->rx_stats_lock);
-	seq_printf(seq, "Timestamp: %dus\n", st->date);
-	seq_printf(seq, "Low power clock: frequency %uHz, external %s\n",
-		   le32_to_cpu(st->pwr_clk_freq), st->is_ext_pwr_clk ? "yes" : "no");
-	seq_printf(seq, "Num. of frames: %d, PER (x10e4): %d, Throughput: %dKbps/s\n",
-		   st->nb_rx_frame, st->per_total, st->throughput);
-	seq_puts(seq, "       Num. of      PER     RSSI      SNR      CFO\n");
-	seq_puts(seq, "        frames  (x10e4)    (dBm)     (dB)    (kHz)\n");
-	for (i = 0; i < ARRAY_SIZE(channel_names); i++) {
-		if (channel_names[i])
-			seq_printf(seq, "%5s %8d %8d %8d %8d %8d\n",
-				   channel_names[i],
-				   le32_to_cpu(st->nb_rx_by_rate[i]),
-				   le16_to_cpu(st->per[i]),
-				   (s16)le16_to_cpu(st->rssi[i]) / 100,
-				   (s16)le16_to_cpu(st->snr[i]) / 100,
-				   (s16)le16_to_cpu(st->cfo[i]));
-	}
-	mutex_unlock(&wdev->rx_stats_lock);
-
-	return 0;
-}
-DEFINE_SHOW_ATTRIBUTE(wfx_rx_stats);
-
-static int wfx_tx_power_loop_show(struct seq_file *seq, void *v)
-{
-	struct wfx_dev *wdev = seq->private;
-	struct wfx_hif_tx_power_loop_info *st = &wdev->tx_power_loop_info;
-	int tmp;
-
-	mutex_lock(&wdev->tx_power_loop_info_lock);
-	tmp = le16_to_cpu(st->tx_gain_dig);
-	seq_printf(seq, "Tx gain digital: %d\n", tmp);
-	tmp = le16_to_cpu(st->tx_gain_pa);
-	seq_printf(seq, "Tx gain PA: %d\n", tmp);
-	tmp = (s16)le16_to_cpu(st->target_pout);
-	seq_printf(seq, "Target Pout: %d.%02d dBm\n", tmp / 4, (tmp % 4) * 25);
-	tmp = (s16)le16_to_cpu(st->p_estimation);
-	seq_printf(seq, "FEM Pout: %d.%02d dBm\n", tmp / 4, (tmp % 4) * 25);
-	tmp = le16_to_cpu(st->vpdet);
-	seq_printf(seq, "Vpdet: %d mV\n", tmp);
-	seq_printf(seq, "Measure index: %d\n", st->measurement_index);
-	mutex_unlock(&wdev->tx_power_loop_info_lock);
-
-	return 0;
-}
-DEFINE_SHOW_ATTRIBUTE(wfx_tx_power_loop);
-
-static ssize_t wfx_send_pds_write(struct file *file, const char __user *user_buf,
-				  size_t count, loff_t *ppos)
-{
-	struct wfx_dev *wdev = file->private_data;
-	char *buf;
-	int ret;
-
-	if (*ppos != 0) {
-		dev_dbg(wdev->dev, "PDS data must be written in one transaction");
-		return -EBUSY;
-	}
-	buf = memdup_user(user_buf, count);
-	if (IS_ERR(buf))
-		return PTR_ERR(buf);
-	*ppos = *ppos + count;
-	ret = wfx_send_pds(wdev, buf, count);
-	kfree(buf);
-	if (ret < 0)
-		return ret;
-	return count;
-}
-
-static const struct file_operations wfx_send_pds_fops = {
-	.open = simple_open,
-	.write = wfx_send_pds_write,
-};
-
-struct dbgfs_hif_msg {
-	struct wfx_dev *wdev;
-	struct completion complete;
-	u8 reply[1024];
-	int ret;
-};
-
-static ssize_t wfx_send_hif_msg_write(struct file *file, const char __user *user_buf,
-				      size_t count, loff_t *ppos)
-{
-	struct dbgfs_hif_msg *context = file->private_data;
-	struct wfx_dev *wdev = context->wdev;
-	struct wfx_hif_msg *request;
-
-	if (completion_done(&context->complete)) {
-		dev_dbg(wdev->dev, "read previous result before start a new one\n");
-		return -EBUSY;
-	}
-	if (count < sizeof(struct wfx_hif_msg))
-		return -EINVAL;
-
-	/* wfx_cmd_send() checks that reply buffer is wide enough, but does not return precise
-	 * length read. User have to know how many bytes should be read. Filling reply buffer with a
-	 * memory pattern may help user.
-	 */
-	memset(context->reply, 0xFF, sizeof(context->reply));
-	request = memdup_user(user_buf, count);
-	if (IS_ERR(request))
-		return PTR_ERR(request);
-	if (le16_to_cpu(request->len) != count) {
-		kfree(request);
-		return -EINVAL;
-	}
-	context->ret = wfx_cmd_send(wdev, request, context->reply, sizeof(context->reply), false);
-
-	kfree(request);
-	complete(&context->complete);
-	return count;
-}
-
-static ssize_t wfx_send_hif_msg_read(struct file *file, char __user *user_buf,
-				     size_t count, loff_t *ppos)
-{
-	struct dbgfs_hif_msg *context = file->private_data;
-	int ret;
-
-	if (count > sizeof(context->reply))
-		return -EINVAL;
-	ret = wait_for_completion_interruptible(&context->complete);
-	if (ret)
-		return ret;
-	if (context->ret < 0)
-		return context->ret;
-	/* Be careful, write() is waiting for a full message while read() only returns a payload */
-	if (copy_to_user(user_buf, context->reply, count))
-		return -EFAULT;
-
-	return count;
-}
-
-static int wfx_send_hif_msg_open(struct inode *inode, struct file *file)
-{
-	struct dbgfs_hif_msg *context = kzalloc(sizeof(*context), GFP_KERNEL);
-
-	if (!context)
-		return -ENOMEM;
-	context->wdev = inode->i_private;
-	init_completion(&context->complete);
-	file->private_data = context;
-	return 0;
-}
-
-static int wfx_send_hif_msg_release(struct inode *inode, struct file *file)
-{
-	struct dbgfs_hif_msg *context = file->private_data;
-
-	kfree(context);
-	return 0;
-}
-
-static const struct file_operations wfx_send_hif_msg_fops = {
-	.open = wfx_send_hif_msg_open,
-	.release = wfx_send_hif_msg_release,
-	.write = wfx_send_hif_msg_write,
-	.read = wfx_send_hif_msg_read,
-};
-
-int wfx_debug_init(struct wfx_dev *wdev)
-{
-	struct dentry *d;
-
-	d = debugfs_create_dir("wfx", wdev->hw->wiphy->debugfsdir);
-	debugfs_create_file("counters", 0444, d, wdev, &wfx_counters_fops);
-	debugfs_create_file("rx_stats", 0444, d, wdev, &wfx_rx_stats_fops);
-	debugfs_create_file("tx_power_loop", 0444, d, wdev, &wfx_tx_power_loop_fops);
-	debugfs_create_file("send_pds", 0200, d, wdev, &wfx_send_pds_fops);
-	debugfs_create_file("send_hif_msg", 0600, d, wdev, &wfx_send_hif_msg_fops);
-
-	return 0;
-}
diff --git a/drivers/staging/wfx/debug.h b/drivers/staging/wfx/debug.h
deleted file mode 100644
index 3840575e5e28..000000000000
--- a/drivers/staging/wfx/debug.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Debugfs interface.
- *
- * Copyright (c) 2017-2019, Silicon Laboratories, Inc.
- * Copyright (c) 2011, ST-Ericsson
- */
-#ifndef WFX_DEBUG_H
-#define WFX_DEBUG_H
-
-struct wfx_dev;
-
-int wfx_debug_init(struct wfx_dev *wdev);
-
-const char *wfx_get_hif_name(unsigned long id);
-const char *wfx_get_mib_name(unsigned long id);
-const char *wfx_get_reg_name(unsigned long id);
-
-#endif
diff --git a/drivers/staging/wfx/fwio.c b/drivers/staging/wfx/fwio.c
deleted file mode 100644
index 3d1b8a135dc0..000000000000
--- a/drivers/staging/wfx/fwio.c
+++ /dev/null
@@ -1,389 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Firmware loading.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/firmware.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/bitfield.h>
-
-#include "fwio.h"
-#include "wfx.h"
-#include "hwio.h"
-
-/* Addresses below are in SRAM area */
-#define WFX_DNLD_FIFO             0x09004000
-#define     DNLD_BLOCK_SIZE           0x0400
-#define     DNLD_FIFO_SIZE            0x8000 /* (32 * DNLD_BLOCK_SIZE) */
-/* Download Control Area (DCA) */
-#define WFX_DCA_IMAGE_SIZE        0x0900C000
-#define WFX_DCA_PUT               0x0900C004
-#define WFX_DCA_GET               0x0900C008
-#define WFX_DCA_HOST_STATUS       0x0900C00C
-#define     HOST_READY                0x87654321
-#define     HOST_INFO_READ            0xA753BD99
-#define     HOST_UPLOAD_PENDING       0xABCDDCBA
-#define     HOST_UPLOAD_COMPLETE      0xD4C64A99
-#define     HOST_OK_TO_JUMP           0x174FC882
-#define WFX_DCA_NCP_STATUS        0x0900C010
-#define     NCP_NOT_READY             0x12345678
-#define     NCP_READY                 0x87654321
-#define     NCP_INFO_READY            0xBD53EF99
-#define     NCP_DOWNLOAD_PENDING      0xABCDDCBA
-#define     NCP_DOWNLOAD_COMPLETE     0xCAFEFECA
-#define     NCP_AUTH_OK               0xD4C64A99
-#define     NCP_AUTH_FAIL             0x174FC882
-#define     NCP_PUB_KEY_RDY           0x7AB41D19
-#define WFX_DCA_FW_SIGNATURE      0x0900C014
-#define     FW_SIGNATURE_SIZE         0x40
-#define WFX_DCA_FW_HASH           0x0900C054
-#define     FW_HASH_SIZE              0x08
-#define WFX_DCA_FW_VERSION        0x0900C05C
-#define     FW_VERSION_SIZE           0x04
-#define WFX_DCA_RESERVED          0x0900C060
-#define     DCA_RESERVED_SIZE         0x20
-#define WFX_STATUS_INFO           0x0900C080
-#define WFX_BOOTLOADER_LABEL      0x0900C084
-#define     BOOTLOADER_LABEL_SIZE     0x3C
-#define WFX_PTE_INFO              0x0900C0C0
-#define     PTE_INFO_KEYSET_IDX       0x0D
-#define     PTE_INFO_SIZE             0x10
-#define WFX_ERR_INFO              0x0900C0D0
-#define     ERR_INVALID_SEC_TYPE      0x05
-#define     ERR_SIG_VERIF_FAILED      0x0F
-#define     ERR_AES_CTRL_KEY          0x10
-#define     ERR_ECC_PUB_KEY           0x11
-#define     ERR_MAC_KEY               0x18
-
-#define DCA_TIMEOUT  50 /* milliseconds */
-#define WAKEUP_TIMEOUT 200 /* milliseconds */
-
-static const char * const fwio_errors[] = {
-	[ERR_INVALID_SEC_TYPE] = "Invalid section type or wrong encryption",
-	[ERR_SIG_VERIF_FAILED] = "Signature verification failed",
-	[ERR_AES_CTRL_KEY]     = "AES control key not initialized",
-	[ERR_ECC_PUB_KEY]      = "ECC public key not initialized",
-	[ERR_MAC_KEY]          = "MAC key not initialized",
-};
-
-/* request_firmware() allocate data using vmalloc(). It is not compatible with underlying hardware
- * that use DMA. Function below detect this case and allocate a bounce buffer if necessary.
- *
- * Notice that, in doubt, you can enable CONFIG_DEBUG_SG to ask kernel to detect this problem at
- * runtime  (else, kernel silently fail).
- *
- * NOTE: it may also be possible to use 'pages' from struct firmware and avoid bounce buffer
- */
-static int wfx_sram_write_dma_safe(struct wfx_dev *wdev, u32 addr, const u8 *buf, size_t len)
-{
-	int ret;
-	const u8 *tmp;
-
-	if (!virt_addr_valid(buf)) {
-		tmp = kmemdup(buf, len, GFP_KERNEL);
-		if (!tmp)
-			return -ENOMEM;
-	} else {
-		tmp = buf;
-	}
-	ret = wfx_sram_buf_write(wdev, addr, tmp, len);
-	if (tmp != buf)
-		kfree(tmp);
-	return ret;
-}
-
-static int get_firmware(struct wfx_dev *wdev, u32 keyset_chip,
-			const struct firmware **fw, int *file_offset)
-{
-	int keyset_file;
-	char filename[256];
-	const char *data;
-	int ret;
-
-	snprintf(filename, sizeof(filename), "%s_%02X.sec",
-		 wdev->pdata.file_fw, keyset_chip);
-	ret = firmware_request_nowarn(fw, filename, wdev->dev);
-	if (ret) {
-		dev_info(wdev->dev, "can't load %s, falling back to %s.sec\n",
-			 filename, wdev->pdata.file_fw);
-		snprintf(filename, sizeof(filename), "%s.sec", wdev->pdata.file_fw);
-		ret = request_firmware(fw, filename, wdev->dev);
-		if (ret) {
-			dev_err(wdev->dev, "can't load %s\n", filename);
-			*fw = NULL;
-			return ret;
-		}
-	}
-
-	data = (*fw)->data;
-	if (memcmp(data, "KEYSET", 6) != 0) {
-		/* Legacy firmware format */
-		*file_offset = 0;
-		keyset_file = 0x90;
-	} else {
-		*file_offset = 8;
-		keyset_file = (hex_to_bin(data[6]) * 16) | hex_to_bin(data[7]);
-		if (keyset_file < 0) {
-			dev_err(wdev->dev, "%s corrupted\n", filename);
-			release_firmware(*fw);
-			*fw = NULL;
-			return -EINVAL;
-		}
-	}
-	if (keyset_file != keyset_chip) {
-		dev_err(wdev->dev, "firmware keyset is incompatible with chip (file: 0x%02X, chip: 0x%02X)\n",
-			keyset_file, keyset_chip);
-		release_firmware(*fw);
-		*fw = NULL;
-		return -ENODEV;
-	}
-	wdev->keyset = keyset_file;
-	return 0;
-}
-
-static int wait_ncp_status(struct wfx_dev *wdev, u32 status)
-{
-	ktime_t now, start;
-	u32 reg;
-	int ret;
-
-	start = ktime_get();
-	for (;;) {
-		ret = wfx_sram_reg_read(wdev, WFX_DCA_NCP_STATUS, &reg);
-		if (ret < 0)
-			return -EIO;
-		now = ktime_get();
-		if (reg == status)
-			break;
-		if (ktime_after(now, ktime_add_ms(start, DCA_TIMEOUT)))
-			return -ETIMEDOUT;
-	}
-	if (ktime_compare(now, start))
-		dev_dbg(wdev->dev, "chip answer after %lldus\n", ktime_us_delta(now, start));
-	else
-		dev_dbg(wdev->dev, "chip answer immediately\n");
-	return 0;
-}
-
-static int upload_firmware(struct wfx_dev *wdev, const u8 *data, size_t len)
-{
-	int ret;
-	u32 offs, bytes_done = 0;
-	ktime_t now, start;
-
-	if (len % DNLD_BLOCK_SIZE) {
-		dev_err(wdev->dev, "firmware size is not aligned. Buffer overrun will occur\n");
-		return -EIO;
-	}
-	offs = 0;
-	while (offs < len) {
-		start = ktime_get();
-		for (;;) {
-			now = ktime_get();
-			if (offs + DNLD_BLOCK_SIZE - bytes_done < DNLD_FIFO_SIZE)
-				break;
-			if (ktime_after(now, ktime_add_ms(start, DCA_TIMEOUT)))
-				return -ETIMEDOUT;
-			ret = wfx_sram_reg_read(wdev, WFX_DCA_GET, &bytes_done);
-			if (ret < 0)
-				return ret;
-		}
-		if (ktime_compare(now, start))
-			dev_dbg(wdev->dev, "answer after %lldus\n", ktime_us_delta(now, start));
-
-		ret = wfx_sram_write_dma_safe(wdev, WFX_DNLD_FIFO + (offs % DNLD_FIFO_SIZE),
-					      data + offs, DNLD_BLOCK_SIZE);
-		if (ret < 0)
-			return ret;
-
-		/* The device seems to not support writing 0 in this register during first loop */
-		offs += DNLD_BLOCK_SIZE;
-		ret = wfx_sram_reg_write(wdev, WFX_DCA_PUT, offs);
-		if (ret < 0)
-			return ret;
-	}
-	return 0;
-}
-
-static void print_boot_status(struct wfx_dev *wdev)
-{
-	u32 reg;
-
-	wfx_sram_reg_read(wdev, WFX_STATUS_INFO, &reg);
-	if (reg == 0x12345678)
-		return;
-	wfx_sram_reg_read(wdev, WFX_ERR_INFO, &reg);
-	if (reg < ARRAY_SIZE(fwio_errors) && fwio_errors[reg])
-		dev_info(wdev->dev, "secure boot: %s\n", fwio_errors[reg]);
-	else
-		dev_info(wdev->dev, "secure boot: Error %#02x\n", reg);
-}
-
-static int load_firmware_secure(struct wfx_dev *wdev)
-{
-	const struct firmware *fw = NULL;
-	int header_size;
-	int fw_offset;
-	ktime_t start;
-	u8 *buf;
-	int ret;
-
-	BUILD_BUG_ON(PTE_INFO_SIZE > BOOTLOADER_LABEL_SIZE);
-	buf = kmalloc(BOOTLOADER_LABEL_SIZE + 1, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
-
-	wfx_sram_reg_write(wdev, WFX_DCA_HOST_STATUS, HOST_READY);
-	ret = wait_ncp_status(wdev, NCP_INFO_READY);
-	if (ret)
-		goto error;
-
-	wfx_sram_buf_read(wdev, WFX_BOOTLOADER_LABEL, buf, BOOTLOADER_LABEL_SIZE);
-	buf[BOOTLOADER_LABEL_SIZE] = 0;
-	dev_dbg(wdev->dev, "bootloader: \"%s\"\n", buf);
-
-	wfx_sram_buf_read(wdev, WFX_PTE_INFO, buf, PTE_INFO_SIZE);
-	ret = get_firmware(wdev, buf[PTE_INFO_KEYSET_IDX], &fw, &fw_offset);
-	if (ret)
-		goto error;
-	header_size = fw_offset + FW_SIGNATURE_SIZE + FW_HASH_SIZE;
-
-	wfx_sram_reg_write(wdev, WFX_DCA_HOST_STATUS, HOST_INFO_READ);
-	ret = wait_ncp_status(wdev, NCP_READY);
-	if (ret)
-		goto error;
-
-	wfx_sram_reg_write(wdev, WFX_DNLD_FIFO, 0xFFFFFFFF); /* Fifo init */
-	wfx_sram_write_dma_safe(wdev, WFX_DCA_FW_VERSION, "\x01\x00\x00\x00", FW_VERSION_SIZE);
-	wfx_sram_write_dma_safe(wdev, WFX_DCA_FW_SIGNATURE, fw->data + fw_offset,
-				FW_SIGNATURE_SIZE);
-	wfx_sram_write_dma_safe(wdev, WFX_DCA_FW_HASH, fw->data + fw_offset + FW_SIGNATURE_SIZE,
-				FW_HASH_SIZE);
-	wfx_sram_reg_write(wdev, WFX_DCA_IMAGE_SIZE, fw->size - header_size);
-	wfx_sram_reg_write(wdev, WFX_DCA_HOST_STATUS, HOST_UPLOAD_PENDING);
-	ret = wait_ncp_status(wdev, NCP_DOWNLOAD_PENDING);
-	if (ret)
-		goto error;
-
-	start = ktime_get();
-	ret = upload_firmware(wdev, fw->data + header_size, fw->size - header_size);
-	if (ret)
-		goto error;
-	dev_dbg(wdev->dev, "firmware load after %lldus\n",
-		ktime_us_delta(ktime_get(), start));
-
-	wfx_sram_reg_write(wdev, WFX_DCA_HOST_STATUS, HOST_UPLOAD_COMPLETE);
-	ret = wait_ncp_status(wdev, NCP_AUTH_OK);
-	/* Legacy ROM support */
-	if (ret < 0)
-		ret = wait_ncp_status(wdev, NCP_PUB_KEY_RDY);
-	if (ret < 0)
-		goto error;
-	wfx_sram_reg_write(wdev, WFX_DCA_HOST_STATUS, HOST_OK_TO_JUMP);
-
-error:
-	kfree(buf);
-	if (fw)
-		release_firmware(fw);
-	if (ret)
-		print_boot_status(wdev);
-	return ret;
-}
-
-static int init_gpr(struct wfx_dev *wdev)
-{
-	int ret, i;
-	static const struct {
-		int index;
-		u32 value;
-	} gpr_init[] = {
-		{ 0x07, 0x208775 },
-		{ 0x08, 0x2EC020 },
-		{ 0x09, 0x3C3C3C },
-		{ 0x0B, 0x322C44 },
-		{ 0x0C, 0xA06497 },
-	};
-
-	for (i = 0; i < ARRAY_SIZE(gpr_init); i++) {
-		ret = wfx_igpr_reg_write(wdev, gpr_init[i].index, gpr_init[i].value);
-		if (ret < 0)
-			return ret;
-		dev_dbg(wdev->dev, "  index %02x: %08x\n", gpr_init[i].index, gpr_init[i].value);
-	}
-	return 0;
-}
-
-int wfx_init_device(struct wfx_dev *wdev)
-{
-	int ret;
-	int hw_revision, hw_type;
-	int wakeup_timeout = 50; /* ms */
-	ktime_t now, start;
-	u32 reg;
-
-	reg = CFG_DIRECT_ACCESS_MODE | CFG_CPU_RESET | CFG_BYTE_ORDER_ABCD;
-	if (wdev->pdata.use_rising_clk)
-		reg |= CFG_CLK_RISE_EDGE;
-	ret = wfx_config_reg_write(wdev, reg);
-	if (ret < 0) {
-		dev_err(wdev->dev, "bus returned an error during first write access. Host configuration error?\n");
-		return -EIO;
-	}
-
-	ret = wfx_config_reg_read(wdev, &reg);
-	if (ret < 0) {
-		dev_err(wdev->dev, "bus returned an error during first read access. Bus configuration error?\n");
-		return -EIO;
-	}
-	if (reg == 0 || reg == ~0) {
-		dev_err(wdev->dev, "chip mute. Bus configuration error or chip wasn't reset?\n");
-		return -EIO;
-	}
-	dev_dbg(wdev->dev, "initial config register value: %08x\n", reg);
-
-	hw_revision = FIELD_GET(CFG_DEVICE_ID_MAJOR, reg);
-	if (hw_revision == 0) {
-		dev_err(wdev->dev, "bad hardware revision number: %d\n", hw_revision);
-		return -ENODEV;
-	}
-	hw_type = FIELD_GET(CFG_DEVICE_ID_TYPE, reg);
-	if (hw_type == 1) {
-		dev_notice(wdev->dev, "development hardware detected\n");
-		wakeup_timeout = 2000;
-	}
-
-	ret = init_gpr(wdev);
-	if (ret < 0)
-		return ret;
-
-	ret = wfx_control_reg_write(wdev, CTRL_WLAN_WAKEUP);
-	if (ret < 0)
-		return -EIO;
-	start = ktime_get();
-	for (;;) {
-		ret = wfx_control_reg_read(wdev, &reg);
-		now = ktime_get();
-		if (reg & CTRL_WLAN_READY)
-			break;
-		if (ktime_after(now, ktime_add_ms(start, wakeup_timeout))) {
-			dev_err(wdev->dev, "chip didn't wake up. Chip wasn't reset?\n");
-			return -ETIMEDOUT;
-		}
-	}
-	dev_dbg(wdev->dev, "chip wake up after %lldus\n", ktime_us_delta(now, start));
-
-	ret = wfx_config_reg_write_bits(wdev, CFG_CPU_RESET, 0);
-	if (ret < 0)
-		return ret;
-	ret = load_firmware_secure(wdev);
-	if (ret < 0)
-		return ret;
-	return wfx_config_reg_write_bits(wdev,
-					 CFG_DIRECT_ACCESS_MODE |
-					 CFG_IRQ_ENABLE_DATA |
-					 CFG_IRQ_ENABLE_WRDY,
-					 CFG_IRQ_ENABLE_DATA);
-}
diff --git a/drivers/staging/wfx/fwio.h b/drivers/staging/wfx/fwio.h
deleted file mode 100644
index eeea61210eca..000000000000
--- a/drivers/staging/wfx/fwio.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Firmware loading.
- *
- * Copyright (c) 2017-2019, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#ifndef WFX_FWIO_H
-#define WFX_FWIO_H
-
-struct wfx_dev;
-
-int wfx_init_device(struct wfx_dev *wdev);
-
-#endif
diff --git a/drivers/staging/wfx/hif_api_cmd.h b/drivers/staging/wfx/hif_api_cmd.h
deleted file mode 100644
index 8b91b1d4a46b..000000000000
--- a/drivers/staging/wfx/hif_api_cmd.h
+++ /dev/null
@@ -1,553 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only or Apache-2.0 */
-/*
- * WF200 hardware interface definitions
- *
- * Copyright (c) 2018-2020, Silicon Laboratories Inc.
- */
-
-#ifndef WFX_HIF_API_CMD_H
-#define WFX_HIF_API_CMD_H
-
-#include "hif_api_general.h"
-
-enum wfx_hif_requests_ids {
-	HIF_REQ_ID_RESET                = 0x0a,
-	HIF_REQ_ID_READ_MIB             = 0x05,
-	HIF_REQ_ID_WRITE_MIB            = 0x06,
-	HIF_REQ_ID_START_SCAN           = 0x07,
-	HIF_REQ_ID_STOP_SCAN            = 0x08,
-	HIF_REQ_ID_TX                   = 0x04,
-	HIF_REQ_ID_JOIN                 = 0x0b,
-	HIF_REQ_ID_SET_PM_MODE          = 0x10,
-	HIF_REQ_ID_SET_BSS_PARAMS       = 0x11,
-	HIF_REQ_ID_ADD_KEY              = 0x0c,
-	HIF_REQ_ID_REMOVE_KEY           = 0x0d,
-	HIF_REQ_ID_EDCA_QUEUE_PARAMS    = 0x13,
-	HIF_REQ_ID_START                = 0x17,
-	HIF_REQ_ID_BEACON_TRANSMIT      = 0x18,
-	HIF_REQ_ID_UPDATE_IE            = 0x1b,
-	HIF_REQ_ID_MAP_LINK             = 0x1c,
-};
-
-enum wfx_hif_confirmations_ids {
-	HIF_CNF_ID_RESET                = 0x0a,
-	HIF_CNF_ID_READ_MIB             = 0x05,
-	HIF_CNF_ID_WRITE_MIB            = 0x06,
-	HIF_CNF_ID_START_SCAN           = 0x07,
-	HIF_CNF_ID_STOP_SCAN            = 0x08,
-	HIF_CNF_ID_TX                   = 0x04,
-	HIF_CNF_ID_MULTI_TRANSMIT       = 0x1e,
-	HIF_CNF_ID_JOIN                 = 0x0b,
-	HIF_CNF_ID_SET_PM_MODE          = 0x10,
-	HIF_CNF_ID_SET_BSS_PARAMS       = 0x11,
-	HIF_CNF_ID_ADD_KEY              = 0x0c,
-	HIF_CNF_ID_REMOVE_KEY           = 0x0d,
-	HIF_CNF_ID_EDCA_QUEUE_PARAMS    = 0x13,
-	HIF_CNF_ID_START                = 0x17,
-	HIF_CNF_ID_BEACON_TRANSMIT      = 0x18,
-	HIF_CNF_ID_UPDATE_IE            = 0x1b,
-	HIF_CNF_ID_MAP_LINK             = 0x1c,
-};
-
-enum wfx_hif_indications_ids {
-	HIF_IND_ID_RX                   = 0x84,
-	HIF_IND_ID_SCAN_CMPL            = 0x86,
-	HIF_IND_ID_JOIN_COMPLETE        = 0x8f,
-	HIF_IND_ID_SET_PM_MODE_CMPL     = 0x89,
-	HIF_IND_ID_SUSPEND_RESUME_TX    = 0x8c,
-	HIF_IND_ID_EVENT                = 0x85
-};
-
-struct wfx_hif_req_reset {
-	u8     reset_stat:1;
-	u8     reset_all_int:1;
-	u8     reserved1:6;
-	u8     reserved2[3];
-} __packed;
-
-struct wfx_hif_cnf_reset {
-	__le32 status;
-} __packed;
-
-struct wfx_hif_req_read_mib {
-	__le16 mib_id;
-	__le16 reserved;
-} __packed;
-
-struct wfx_hif_cnf_read_mib {
-	__le32 status;
-	__le16 mib_id;
-	__le16 length;
-	u8     mib_data[];
-} __packed;
-
-struct wfx_hif_req_write_mib {
-	__le16 mib_id;
-	__le16 length;
-	u8     mib_data[];
-} __packed;
-
-struct wfx_hif_cnf_write_mib {
-	__le32 status;
-} __packed;
-
-struct wfx_hif_req_update_ie {
-	u8     beacon:1;
-	u8     probe_resp:1;
-	u8     probe_req:1;
-	u8     reserved1:5;
-	u8     reserved2;
-	__le16 num_ies;
-	u8     ie[];
-} __packed;
-
-struct wfx_hif_cnf_update_ie {
-	__le32 status;
-} __packed;
-
-struct wfx_hif_ssid_def {
-	__le32 ssid_length;
-	u8     ssid[IEEE80211_MAX_SSID_LEN];
-} __packed;
-
-#define HIF_API_MAX_NB_SSIDS                           2
-#define HIF_API_MAX_NB_CHANNELS                       14
-
-struct wfx_hif_req_start_scan_alt {
-	u8     band;
-	u8     maintain_current_bss:1;
-	u8     periodic:1;
-	u8     reserved1:6;
-	u8     disallow_ps:1;
-	u8     reserved2:1;
-	u8     short_preamble:1;
-	u8     reserved3:5;
-	u8     max_transmit_rate;
-	__le16 periodic_interval;
-	u8     reserved4;
-	s8     periodic_rssi_thr;
-	u8     num_of_probe_requests;
-	u8     probe_delay;
-	u8     num_of_ssids;
-	u8     num_of_channels;
-	__le32 min_channel_time;
-	__le32 max_channel_time;
-	__le32 tx_power_level; /* signed value */
-	struct wfx_hif_ssid_def ssid_def[HIF_API_MAX_NB_SSIDS];
-	u8     channel_list[];
-} __packed;
-
-struct wfx_hif_cnf_start_scan {
-	__le32 status;
-} __packed;
-
-struct wfx_hif_cnf_stop_scan {
-	__le32 status;
-} __packed;
-
-enum wfx_hif_pm_mode_status {
-	HIF_PM_MODE_ACTIVE                         = 0x0,
-	HIF_PM_MODE_PS                             = 0x1,
-	HIF_PM_MODE_UNDETERMINED                   = 0x2
-};
-
-struct wfx_hif_ind_scan_cmpl {
-	__le32 status;
-	u8     pm_mode;
-	u8     num_channels_completed;
-	__le16 reserved;
-} __packed;
-
-enum wfx_hif_queue_id {
-	HIF_QUEUE_ID_BACKGROUND                    = 0x0,
-	HIF_QUEUE_ID_BESTEFFORT                    = 0x1,
-	HIF_QUEUE_ID_VIDEO                         = 0x2,
-	HIF_QUEUE_ID_VOICE                         = 0x3
-};
-
-enum wfx_hif_frame_format {
-	HIF_FRAME_FORMAT_NON_HT                    = 0x0,
-	HIF_FRAME_FORMAT_MIXED_FORMAT_HT           = 0x1,
-	HIF_FRAME_FORMAT_GF_HT_11N                 = 0x2
-};
-
-struct wfx_hif_req_tx {
-	/* packet_id is not interpreted by the device, so it is not necessary to declare it little
-	 * endian
-	 */
-	u32    packet_id;
-	u8     max_tx_rate;
-	u8     queue_id:2;
-	u8     peer_sta_id:4;
-	u8     reserved1:2;
-	u8     more:1;
-	u8     fc_offset:3;
-	u8     after_dtim:1;
-	u8     reserved2:3;
-	u8     start_exp:1;
-	u8     reserved3:3;
-	u8     retry_policy_index:4;
-	__le32 reserved4;
-	__le32 expire_time;
-	u8     frame_format:4;
-	u8     fec_coding:1;
-	u8     short_gi:1;
-	u8     reserved5:1;
-	u8     stbc:1;
-	u8     reserved6;
-	u8     aggregation:1;
-	u8     reserved7:7;
-	u8     reserved8;
-	u8     frame[];
-} __packed;
-
-enum wfx_hif_qos_ackplcy {
-	HIF_QOS_ACKPLCY_NORMAL                         = 0x0,
-	HIF_QOS_ACKPLCY_TXNOACK                        = 0x1,
-	HIF_QOS_ACKPLCY_NOEXPACK                       = 0x2,
-	HIF_QOS_ACKPLCY_BLCKACK                        = 0x3
-};
-
-struct wfx_hif_cnf_tx {
-	__le32 status;
-	/* packet_id is copied from struct wfx_hif_req_tx without been interpreted by the device, so
-	 * it is not necessary to declare it little endian
-	 */
-	u32    packet_id;
-	u8     txed_rate;
-	u8     ack_failures;
-	u8     aggr:1;
-	u8     requeue:1;
-	u8     ack_policy:2;
-	u8     txop_limit:1;
-	u8     reserved1:3;
-	u8     reserved2;
-	__le32 media_delay;
-	__le32 tx_queue_delay;
-} __packed;
-
-struct wfx_hif_cnf_multi_transmit {
-	u8     num_tx_confs;
-	u8     reserved[3];
-	struct wfx_hif_cnf_tx tx_conf_payload[];
-} __packed;
-
-enum wfx_hif_ri_flags_encrypt {
-	HIF_RI_FLAGS_UNENCRYPTED                   = 0x0,
-	HIF_RI_FLAGS_WEP_ENCRYPTED                 = 0x1,
-	HIF_RI_FLAGS_TKIP_ENCRYPTED                = 0x2,
-	HIF_RI_FLAGS_AES_ENCRYPTED                 = 0x3,
-	HIF_RI_FLAGS_WAPI_ENCRYPTED                = 0x4
-};
-
-struct wfx_hif_ind_rx {
-	__le32 status;
-	u8     channel_number;
-	u8     reserved1;
-	u8     rxed_rate;
-	u8     rcpi_rssi;
-	u8     encryp:3;
-	u8     in_aggr:1;
-	u8     first_aggr:1;
-	u8     last_aggr:1;
-	u8     defrag:1;
-	u8     beacon:1;
-	u8     tim:1;
-	u8     bitmap:1;
-	u8     match_ssid:1;
-	u8     match_bssid:1;
-	u8     more:1;
-	u8     reserved2:1;
-	u8     ht:1;
-	u8     stbc:1;
-	u8     match_uc_addr:1;
-	u8     match_mc_addr:1;
-	u8     match_bc_addr:1;
-	u8     key_type:1;
-	u8     key_index:4;
-	u8     reserved3:1;
-	u8     peer_sta_id:4;
-	u8     reserved4:2;
-	u8     reserved5:1;
-	u8     frame[];
-} __packed;
-
-struct wfx_hif_req_edca_queue_params {
-	u8     queue_id;
-	u8     reserved1;
-	u8     aifsn;
-	u8     reserved2;
-	__le16 cw_min;
-	__le16 cw_max;
-	__le16 tx_op_limit;
-	__le16 allowed_medium_time;
-	__le32 reserved3;
-} __packed;
-
-struct wfx_hif_cnf_edca_queue_params {
-	__le32 status;
-} __packed;
-
-struct wfx_hif_req_join {
-	u8     infrastructure_bss_mode:1;
-	u8     reserved1:7;
-	u8     band;
-	u8     channel_number;
-	u8     reserved2;
-	u8     bssid[ETH_ALEN];
-	__le16 atim_window;
-	u8     short_preamble:1;
-	u8     reserved3:7;
-	u8     probe_for_join;
-	u8     reserved4;
-	u8     reserved5:2;
-	u8     force_no_beacon:1;
-	u8     force_with_ind:1;
-	u8     reserved6:4;
-	__le32 ssid_length;
-	u8     ssid[IEEE80211_MAX_SSID_LEN];
-	__le32 beacon_interval;
-	__le32 basic_rate_set;
-} __packed;
-
-struct wfx_hif_cnf_join {
-	__le32 status;
-} __packed;
-
-struct wfx_hif_ind_join_complete {
-	__le32 status;
-} __packed;
-
-struct wfx_hif_req_set_bss_params {
-	u8     lost_count_only:1;
-	u8     reserved:7;
-	u8     beacon_lost_count;
-	__le16 aid;
-	__le32 operational_rate_set;
-} __packed;
-
-struct wfx_hif_cnf_set_bss_params {
-	__le32 status;
-} __packed;
-
-struct wfx_hif_req_set_pm_mode {
-	u8     enter_psm:1;
-	u8     reserved:6;
-	u8     fast_psm:1;
-	u8     fast_psm_idle_period;
-	u8     ap_psm_change_period;
-	u8     min_auto_ps_poll_period;
-} __packed;
-
-struct wfx_hif_cnf_set_pm_mode {
-	__le32 status;
-} __packed;
-
-struct wfx_hif_ind_set_pm_mode_cmpl {
-	__le32 status;
-	u8     pm_mode;
-	u8     reserved[3];
-} __packed;
-
-struct wfx_hif_req_start {
-	u8     mode;
-	u8     band;
-	u8     channel_number;
-	u8     reserved1;
-	__le32 reserved2;
-	__le32 beacon_interval;
-	u8     dtim_period;
-	u8     short_preamble:1;
-	u8     reserved3:7;
-	u8     reserved4;
-	u8     ssid_length;
-	u8     ssid[IEEE80211_MAX_SSID_LEN];
-	__le32 basic_rate_set;
-} __packed;
-
-struct wfx_hif_cnf_start {
-	__le32 status;
-} __packed;
-
-struct wfx_hif_req_beacon_transmit {
-	u8     enable_beaconing;
-	u8     reserved[3];
-} __packed;
-
-struct wfx_hif_cnf_beacon_transmit {
-	__le32 status;
-} __packed;
-
-#define HIF_LINK_ID_MAX            14
-#define HIF_LINK_ID_NOT_ASSOCIATED (HIF_LINK_ID_MAX + 1)
-
-struct wfx_hif_req_map_link {
-	u8     mac_addr[ETH_ALEN];
-	u8     unmap:1;
-	u8     mfpc:1;
-	u8     reserved:6;
-	u8     peer_sta_id;
-} __packed;
-
-struct wfx_hif_cnf_map_link {
-	__le32 status;
-} __packed;
-
-struct wfx_hif_ind_suspend_resume_tx {
-	u8     resume:1;
-	u8     reserved1:2;
-	u8     bc_mc_only:1;
-	u8     reserved2:4;
-	u8     reserved3;
-	__le16 peer_sta_set;
-} __packed;
-
-
-#define MAX_KEY_ENTRIES         24
-#define HIF_API_WEP_KEY_DATA_SIZE                       16
-#define HIF_API_TKIP_KEY_DATA_SIZE                      16
-#define HIF_API_RX_MIC_KEY_SIZE                         8
-#define HIF_API_TX_MIC_KEY_SIZE                         8
-#define HIF_API_AES_KEY_DATA_SIZE                       16
-#define HIF_API_WAPI_KEY_DATA_SIZE                      16
-#define HIF_API_MIC_KEY_DATA_SIZE                       16
-#define HIF_API_IGTK_KEY_DATA_SIZE                      16
-#define HIF_API_RX_SEQUENCE_COUNTER_SIZE                8
-#define HIF_API_IPN_SIZE                                8
-
-enum wfx_hif_key_type {
-	HIF_KEY_TYPE_WEP_DEFAULT                   = 0x0,
-	HIF_KEY_TYPE_WEP_PAIRWISE                  = 0x1,
-	HIF_KEY_TYPE_TKIP_GROUP                    = 0x2,
-	HIF_KEY_TYPE_TKIP_PAIRWISE                 = 0x3,
-	HIF_KEY_TYPE_AES_GROUP                     = 0x4,
-	HIF_KEY_TYPE_AES_PAIRWISE                  = 0x5,
-	HIF_KEY_TYPE_WAPI_GROUP                    = 0x6,
-	HIF_KEY_TYPE_WAPI_PAIRWISE                 = 0x7,
-	HIF_KEY_TYPE_IGTK_GROUP                    = 0x8,
-	HIF_KEY_TYPE_NONE                          = 0x9
-};
-
-struct wfx_hif_wep_pairwise_key {
-	u8     peer_address[ETH_ALEN];
-	u8     reserved;
-	u8     key_length;
-	u8     key_data[HIF_API_WEP_KEY_DATA_SIZE];
-} __packed;
-
-struct wfx_hif_wep_group_key {
-	u8     key_id;
-	u8     key_length;
-	u8     reserved[2];
-	u8     key_data[HIF_API_WEP_KEY_DATA_SIZE];
-} __packed;
-
-struct wfx_hif_tkip_pairwise_key {
-	u8     peer_address[ETH_ALEN];
-	u8     reserved[2];
-	u8     tkip_key_data[HIF_API_TKIP_KEY_DATA_SIZE];
-	u8     rx_mic_key[HIF_API_RX_MIC_KEY_SIZE];
-	u8     tx_mic_key[HIF_API_TX_MIC_KEY_SIZE];
-} __packed;
-
-struct wfx_hif_tkip_group_key {
-	u8     tkip_key_data[HIF_API_TKIP_KEY_DATA_SIZE];
-	u8     rx_mic_key[HIF_API_RX_MIC_KEY_SIZE];
-	u8     key_id;
-	u8     reserved[3];
-	u8     rx_sequence_counter[HIF_API_RX_SEQUENCE_COUNTER_SIZE];
-} __packed;
-
-struct wfx_hif_aes_pairwise_key {
-	u8     peer_address[ETH_ALEN];
-	u8     reserved[2];
-	u8     aes_key_data[HIF_API_AES_KEY_DATA_SIZE];
-} __packed;
-
-struct wfx_hif_aes_group_key {
-	u8     aes_key_data[HIF_API_AES_KEY_DATA_SIZE];
-	u8     key_id;
-	u8     reserved[3];
-	u8     rx_sequence_counter[HIF_API_RX_SEQUENCE_COUNTER_SIZE];
-} __packed;
-
-struct wfx_hif_wapi_pairwise_key {
-	u8     peer_address[ETH_ALEN];
-	u8     key_id;
-	u8     reserved;
-	u8     wapi_key_data[HIF_API_WAPI_KEY_DATA_SIZE];
-	u8     mic_key_data[HIF_API_MIC_KEY_DATA_SIZE];
-} __packed;
-
-struct wfx_hif_wapi_group_key {
-	u8     wapi_key_data[HIF_API_WAPI_KEY_DATA_SIZE];
-	u8     mic_key_data[HIF_API_MIC_KEY_DATA_SIZE];
-	u8     key_id;
-	u8     reserved[3];
-} __packed;
-
-struct wfx_hif_igtk_group_key {
-	u8     igtk_key_data[HIF_API_IGTK_KEY_DATA_SIZE];
-	u8     key_id;
-	u8     reserved[3];
-	u8     ipn[HIF_API_IPN_SIZE];
-} __packed;
-
-struct wfx_hif_req_add_key {
-	u8     type;
-	u8     entry_index;
-	u8     int_id:2;
-	u8     reserved1:6;
-	u8     reserved2;
-	union {
-		struct wfx_hif_wep_pairwise_key  wep_pairwise_key;
-		struct wfx_hif_wep_group_key     wep_group_key;
-		struct wfx_hif_tkip_pairwise_key tkip_pairwise_key;
-		struct wfx_hif_tkip_group_key    tkip_group_key;
-		struct wfx_hif_aes_pairwise_key  aes_pairwise_key;
-		struct wfx_hif_aes_group_key     aes_group_key;
-		struct wfx_hif_wapi_pairwise_key wapi_pairwise_key;
-		struct wfx_hif_wapi_group_key    wapi_group_key;
-		struct wfx_hif_igtk_group_key    igtk_group_key;
-	} key;
-} __packed;
-
-struct wfx_hif_cnf_add_key {
-	__le32 status;
-} __packed;
-
-struct wfx_hif_req_remove_key {
-	u8     entry_index;
-	u8     reserved[3];
-} __packed;
-
-struct wfx_hif_cnf_remove_key {
-	__le32 status;
-} __packed;
-
-enum wfx_hif_event_ind {
-	HIF_EVENT_IND_BSSLOST                      = 0x1,
-	HIF_EVENT_IND_BSSREGAINED                  = 0x2,
-	HIF_EVENT_IND_RCPI_RSSI                    = 0x3,
-	HIF_EVENT_IND_PS_MODE_ERROR                = 0x4,
-	HIF_EVENT_IND_INACTIVITY                   = 0x5
-};
-
-enum wfx_hif_ps_mode_error {
-	HIF_PS_ERROR_NO_ERROR                      = 0,
-	HIF_PS_ERROR_AP_NOT_RESP_TO_POLL           = 1,
-	HIF_PS_ERROR_AP_NOT_RESP_TO_UAPSD_TRIGGER  = 2,
-	HIF_PS_ERROR_AP_SENT_UNICAST_IN_DOZE       = 3,
-	HIF_PS_ERROR_AP_NO_DATA_AFTER_TIM          = 4
-};
-
-struct wfx_hif_ind_event {
-	__le32 event_id;
-	union {
-		u8     rcpi_rssi;
-		__le32 ps_mode_error;
-		__le32 peer_sta_set;
-	} event_data;
-} __packed;
-
-#endif
diff --git a/drivers/staging/wfx/hif_api_general.h b/drivers/staging/wfx/hif_api_general.h
deleted file mode 100644
index 4d400fdc2252..000000000000
--- a/drivers/staging/wfx/hif_api_general.h
+++ /dev/null
@@ -1,252 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only or Apache-2.0 */
-/*
- * WF200 hardware interface definitions
- *
- * Copyright (c) 2018-2020, Silicon Laboratories Inc.
- */
-
-#ifndef WFX_HIF_API_GENERAL_H
-#define WFX_HIF_API_GENERAL_H
-
-#include <linux/types.h>
-#include <linux/if_ether.h>
-
-#define HIF_ID_IS_INDICATION      0x80
-#define HIF_COUNTER_MAX           7
-
-struct wfx_hif_msg {
-	__le16 len;
-	u8     id;
-	u8     reserved:1;
-	u8     interface:2;
-	u8     seqnum:3;
-	u8     encrypted:2;
-	u8     body[];
-} __packed;
-
-enum wfx_hif_general_requests_ids {
-	HIF_REQ_ID_CONFIGURATION        = 0x09,
-	HIF_REQ_ID_CONTROL_GPIO         = 0x26,
-	HIF_REQ_ID_SET_SL_MAC_KEY       = 0x27,
-	HIF_REQ_ID_SL_EXCHANGE_PUB_KEYS = 0x28,
-	HIF_REQ_ID_SL_CONFIGURE         = 0x29,
-	HIF_REQ_ID_PREVENT_ROLLBACK     = 0x2a,
-	HIF_REQ_ID_PTA_SETTINGS         = 0x2b,
-	HIF_REQ_ID_PTA_PRIORITY         = 0x2c,
-	HIF_REQ_ID_PTA_STATE            = 0x2d,
-	HIF_REQ_ID_SHUT_DOWN            = 0x32,
-};
-
-enum wfx_hif_general_confirmations_ids {
-	HIF_CNF_ID_CONFIGURATION        = 0x09,
-	HIF_CNF_ID_CONTROL_GPIO         = 0x26,
-	HIF_CNF_ID_SET_SL_MAC_KEY       = 0x27,
-	HIF_CNF_ID_SL_EXCHANGE_PUB_KEYS = 0x28,
-	HIF_CNF_ID_SL_CONFIGURE         = 0x29,
-	HIF_CNF_ID_PREVENT_ROLLBACK     = 0x2a,
-	HIF_CNF_ID_PTA_SETTINGS         = 0x2b,
-	HIF_CNF_ID_PTA_PRIORITY         = 0x2c,
-	HIF_CNF_ID_PTA_STATE            = 0x2d,
-	HIF_CNF_ID_SHUT_DOWN            = 0x32,
-};
-
-enum wfx_hif_general_indications_ids {
-	HIF_IND_ID_EXCEPTION            = 0xe0,
-	HIF_IND_ID_STARTUP              = 0xe1,
-	HIF_IND_ID_WAKEUP               = 0xe2,
-	HIF_IND_ID_GENERIC              = 0xe3,
-	HIF_IND_ID_ERROR                = 0xe4,
-	HIF_IND_ID_SL_EXCHANGE_PUB_KEYS = 0xe5
-};
-
-#define HIF_STATUS_SUCCESS                         (cpu_to_le32(0x0000))
-#define HIF_STATUS_FAIL                            (cpu_to_le32(0x0001))
-#define HIF_STATUS_INVALID_PARAMETER               (cpu_to_le32(0x0002))
-#define HIF_STATUS_WARNING                         (cpu_to_le32(0x0003))
-#define HIF_STATUS_UNKNOWN_REQUEST                 (cpu_to_le32(0x0004))
-#define HIF_STATUS_RX_FAIL_DECRYPT                 (cpu_to_le32(0x0010))
-#define HIF_STATUS_RX_FAIL_MIC                     (cpu_to_le32(0x0011))
-#define HIF_STATUS_RX_FAIL_NO_KEY                  (cpu_to_le32(0x0012))
-#define HIF_STATUS_TX_FAIL_RETRIES                 (cpu_to_le32(0x0013))
-#define HIF_STATUS_TX_FAIL_TIMEOUT                 (cpu_to_le32(0x0014))
-#define HIF_STATUS_TX_FAIL_REQUEUE                 (cpu_to_le32(0x0015))
-#define HIF_STATUS_REFUSED                         (cpu_to_le32(0x0016))
-#define HIF_STATUS_BUSY                            (cpu_to_le32(0x0017))
-#define HIF_STATUS_SLK_SET_KEY_SUCCESS             (cpu_to_le32(0x005A))
-#define HIF_STATUS_SLK_SET_KEY_ALREADY_BURNED      (cpu_to_le32(0x006B))
-#define HIF_STATUS_SLK_SET_KEY_DISALLOWED_MODE     (cpu_to_le32(0x007C))
-#define HIF_STATUS_SLK_SET_KEY_UNKNOWN_MODE        (cpu_to_le32(0x008D))
-#define HIF_STATUS_SLK_NEGO_SUCCESS                (cpu_to_le32(0x009E))
-#define HIF_STATUS_SLK_NEGO_FAILED                 (cpu_to_le32(0x00AF))
-#define HIF_STATUS_ROLLBACK_SUCCESS                (cpu_to_le32(0x1234))
-#define HIF_STATUS_ROLLBACK_FAIL                   (cpu_to_le32(0x1256))
-
-enum wfx_hif_api_rate_index {
-	API_RATE_INDEX_B_1MBPS     = 0,
-	API_RATE_INDEX_B_2MBPS     = 1,
-	API_RATE_INDEX_B_5P5MBPS   = 2,
-	API_RATE_INDEX_B_11MBPS    = 3,
-	API_RATE_INDEX_PBCC_22MBPS = 4,
-	API_RATE_INDEX_PBCC_33MBPS = 5,
-	API_RATE_INDEX_G_6MBPS     = 6,
-	API_RATE_INDEX_G_9MBPS     = 7,
-	API_RATE_INDEX_G_12MBPS    = 8,
-	API_RATE_INDEX_G_18MBPS    = 9,
-	API_RATE_INDEX_G_24MBPS    = 10,
-	API_RATE_INDEX_G_36MBPS    = 11,
-	API_RATE_INDEX_G_48MBPS    = 12,
-	API_RATE_INDEX_G_54MBPS    = 13,
-	API_RATE_INDEX_N_6P5MBPS   = 14,
-	API_RATE_INDEX_N_13MBPS    = 15,
-	API_RATE_INDEX_N_19P5MBPS  = 16,
-	API_RATE_INDEX_N_26MBPS    = 17,
-	API_RATE_INDEX_N_39MBPS    = 18,
-	API_RATE_INDEX_N_52MBPS    = 19,
-	API_RATE_INDEX_N_58P5MBPS  = 20,
-	API_RATE_INDEX_N_65MBPS    = 21,
-	API_RATE_NUM_ENTRIES       = 22
-};
-
-struct wfx_hif_ind_startup {
-	__le32 status;
-	__le16 hardware_id;
-	u8     opn[14];
-	u8     uid[8];
-	__le16 num_inp_ch_bufs;
-	__le16 size_inp_ch_buf;
-	u8     num_links_ap;
-	u8     num_interfaces;
-	u8     mac_addr[2][ETH_ALEN];
-	u8     api_version_minor;
-	u8     api_version_major;
-	u8     link_mode:2;
-	u8     reserved1:6;
-	u8     reserved2;
-	u8     reserved3;
-	u8     reserved4;
-	u8     firmware_build;
-	u8     firmware_minor;
-	u8     firmware_major;
-	u8     firmware_type;
-	u8     disabled_channel_list[2];
-	u8     region_sel_mode:4;
-	u8     reserved5:4;
-	u8     phy1_region:3;
-	u8     phy0_region:3;
-	u8     otp_phy_ver:2;
-	__le32 supported_rate_mask;
-	u8     firmware_label[128];
-} __packed;
-
-struct wfx_hif_ind_wakeup {
-} __packed;
-
-struct wfx_hif_req_configuration {
-	__le16 length;
-	u8     pds_data[];
-} __packed;
-
-struct wfx_hif_cnf_configuration {
-	__le32 status;
-} __packed;
-
-enum wfx_hif_gpio_mode {
-	HIF_GPIO_MODE_D0       = 0x0,
-	HIF_GPIO_MODE_D1       = 0x1,
-	HIF_GPIO_MODE_OD0      = 0x2,
-	HIF_GPIO_MODE_OD1      = 0x3,
-	HIF_GPIO_MODE_TRISTATE = 0x4,
-	HIF_GPIO_MODE_TOGGLE   = 0x5,
-	HIF_GPIO_MODE_READ     = 0x6
-};
-
-struct wfx_hif_req_control_gpio {
-	u8     gpio_label;
-	u8     gpio_mode;
-} __packed;
-
-struct wfx_hif_cnf_control_gpio {
-	__le32 status;
-	__le32 value;
-} __packed;
-
-enum wfx_hif_generic_indication_type {
-	HIF_GENERIC_INDICATION_TYPE_RAW                = 0x0,
-	HIF_GENERIC_INDICATION_TYPE_STRING             = 0x1,
-	HIF_GENERIC_INDICATION_TYPE_RX_STATS           = 0x2,
-	HIF_GENERIC_INDICATION_TYPE_TX_POWER_LOOP_INFO = 0x3,
-};
-
-struct wfx_hif_rx_stats {
-	__le32 nb_rx_frame;
-	__le32 nb_crc_frame;
-	__le32 per_total;
-	__le32 throughput;
-	__le32 nb_rx_by_rate[API_RATE_NUM_ENTRIES];
-	__le16 per[API_RATE_NUM_ENTRIES];
-	__le16 snr[API_RATE_NUM_ENTRIES];  /* signed value */
-	__le16 rssi[API_RATE_NUM_ENTRIES]; /* signed value */
-	__le16 cfo[API_RATE_NUM_ENTRIES];  /* signed value */
-	__le32 date;
-	__le32 pwr_clk_freq;
-	u8     is_ext_pwr_clk;
-	s8     current_temp;
-} __packed;
-
-struct wfx_hif_tx_power_loop_info {
-	__le16 tx_gain_dig;
-	__le16 tx_gain_pa;
-	__le16 target_pout; /* signed value */
-	__le16 p_estimation; /* signed value */
-	__le16 vpdet;
-	u8     measurement_index;
-	u8     reserved;
-} __packed;
-
-struct wfx_hif_ind_generic {
-	__le32 type;
-	union {
-		struct wfx_hif_rx_stats rx_stats;
-		struct wfx_hif_tx_power_loop_info tx_power_loop_info;
-	} data;
-} __packed;
-
-enum wfx_hif_error {
-	HIF_ERROR_FIRMWARE_ROLLBACK           = 0x00,
-	HIF_ERROR_FIRMWARE_DEBUG_ENABLED      = 0x01,
-	HIF_ERROR_SLK_OUTDATED_SESSION_KEY    = 0x02,
-	HIF_ERROR_SLK_SESSION_KEY             = 0x03,
-	HIF_ERROR_OOR_VOLTAGE                 = 0x04,
-	HIF_ERROR_PDS_PAYLOAD                 = 0x05,
-	HIF_ERROR_OOR_TEMPERATURE             = 0x06,
-	HIF_ERROR_SLK_REQ_DURING_KEY_EXCHANGE = 0x07,
-	HIF_ERROR_SLK_MULTI_TX_UNSUPPORTED    = 0x08,
-	HIF_ERROR_SLK_OVERFLOW                = 0x09,
-	HIF_ERROR_SLK_DECRYPTION              = 0x0a,
-	HIF_ERROR_SLK_WRONG_ENCRYPTION_STATE  = 0x0b,
-	HIF_ERROR_HIF_BUS_FREQUENCY_TOO_LOW   = 0x0c,
-	HIF_ERROR_HIF_RX_DATA_TOO_LARGE       = 0x0e,
-	HIF_ERROR_HIF_TX_QUEUE_FULL           = 0x0d,
-	HIF_ERROR_HIF_BUS                     = 0x0f,
-	HIF_ERROR_PDS_TESTFEATURE             = 0x10,
-	HIF_ERROR_SLK_UNCONFIGURED            = 0x11,
-};
-
-struct wfx_hif_ind_error {
-	__le32 type;
-	u8     data[];
-} __packed;
-
-struct wfx_hif_ind_exception {
-	__le32 type;
-	u8     data[];
-} __packed;
-
-enum wfx_hif_secure_link_state {
-	SEC_LINK_UNAVAILABLE = 0x0,
-	SEC_LINK_RESERVED    = 0x1,
-	SEC_LINK_EVAL        = 0x2,
-	SEC_LINK_ENFORCED    = 0x3
-};
-
-#endif
diff --git a/drivers/staging/wfx/hif_api_mib.h b/drivers/staging/wfx/hif_api_mib.h
deleted file mode 100644
index 7b68b83866c9..000000000000
--- a/drivers/staging/wfx/hif_api_mib.h
+++ /dev/null
@@ -1,346 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only or Apache-2.0 */
-/*
- * WF200 hardware interface definitions
- *
- * Copyright (c) 2018-2020, Silicon Laboratories Inc.
- */
-
-#ifndef WFX_HIF_API_MIB_H
-#define WFX_HIF_API_MIB_H
-
-#include "hif_api_general.h"
-
-#define HIF_API_IPV4_ADDRESS_SIZE 4
-#define HIF_API_IPV6_ADDRESS_SIZE 16
-
-enum wfx_hif_mib_ids {
-	HIF_MIB_ID_GL_OPERATIONAL_POWER_MODE        = 0x2000,
-	HIF_MIB_ID_GL_BLOCK_ACK_INFO                = 0x2001,
-	HIF_MIB_ID_GL_SET_MULTI_MSG                 = 0x2002,
-	HIF_MIB_ID_CCA_CONFIG                       = 0x2003,
-	HIF_MIB_ID_ETHERTYPE_DATAFRAME_CONDITION    = 0x2010,
-	HIF_MIB_ID_PORT_DATAFRAME_CONDITION         = 0x2011,
-	HIF_MIB_ID_MAGIC_DATAFRAME_CONDITION        = 0x2012,
-	HIF_MIB_ID_MAC_ADDR_DATAFRAME_CONDITION     = 0x2013,
-	HIF_MIB_ID_IPV4_ADDR_DATAFRAME_CONDITION    = 0x2014,
-	HIF_MIB_ID_IPV6_ADDR_DATAFRAME_CONDITION    = 0x2015,
-	HIF_MIB_ID_UC_MC_BC_DATAFRAME_CONDITION     = 0x2016,
-	HIF_MIB_ID_CONFIG_DATA_FILTER               = 0x2017,
-	HIF_MIB_ID_SET_DATA_FILTERING               = 0x2018,
-	HIF_MIB_ID_ARP_IP_ADDRESSES_TABLE           = 0x2019,
-	HIF_MIB_ID_NS_IP_ADDRESSES_TABLE            = 0x201A,
-	HIF_MIB_ID_RX_FILTER                        = 0x201B,
-	HIF_MIB_ID_BEACON_FILTER_TABLE              = 0x201C,
-	HIF_MIB_ID_BEACON_FILTER_ENABLE             = 0x201D,
-	HIF_MIB_ID_GRP_SEQ_COUNTER                  = 0x2030,
-	HIF_MIB_ID_TSF_COUNTER                      = 0x2031,
-	HIF_MIB_ID_STATISTICS_TABLE                 = 0x2032,
-	HIF_MIB_ID_COUNTERS_TABLE                   = 0x2033,
-	HIF_MIB_ID_MAX_TX_POWER_LEVEL               = 0x2034,
-	HIF_MIB_ID_EXTENDED_COUNTERS_TABLE          = 0x2035,
-	HIF_MIB_ID_DOT11_MAC_ADDRESS                = 0x2040,
-	HIF_MIB_ID_DOT11_MAX_TRANSMIT_MSDU_LIFETIME = 0x2041,
-	HIF_MIB_ID_DOT11_MAX_RECEIVE_LIFETIME       = 0x2042,
-	HIF_MIB_ID_DOT11_WEP_DEFAULT_KEY_ID         = 0x2043,
-	HIF_MIB_ID_DOT11_RTS_THRESHOLD              = 0x2044,
-	HIF_MIB_ID_SLOT_TIME                        = 0x2045,
-	HIF_MIB_ID_CURRENT_TX_POWER_LEVEL           = 0x2046,
-	HIF_MIB_ID_NON_ERP_PROTECTION               = 0x2047,
-	HIF_MIB_ID_TEMPLATE_FRAME                   = 0x2048,
-	HIF_MIB_ID_BEACON_WAKEUP_PERIOD             = 0x2049,
-	HIF_MIB_ID_RCPI_RSSI_THRESHOLD              = 0x204A,
-	HIF_MIB_ID_BLOCK_ACK_POLICY                 = 0x204B,
-	HIF_MIB_ID_OVERRIDE_INTERNAL_TX_RATE        = 0x204C,
-	HIF_MIB_ID_SET_ASSOCIATION_MODE             = 0x204D,
-	HIF_MIB_ID_SET_UAPSD_INFORMATION            = 0x204E,
-	HIF_MIB_ID_SET_TX_RATE_RETRY_POLICY         = 0x204F,
-	HIF_MIB_ID_PROTECTED_MGMT_POLICY            = 0x2050,
-	HIF_MIB_ID_SET_HT_PROTECTION                = 0x2051,
-	HIF_MIB_ID_KEEP_ALIVE_PERIOD                = 0x2052,
-	HIF_MIB_ID_ARP_KEEP_ALIVE_PERIOD            = 0x2053,
-	HIF_MIB_ID_INACTIVITY_TIMER                 = 0x2054,
-	HIF_MIB_ID_INTERFACE_PROTECTION             = 0x2055,
-	HIF_MIB_ID_BEACON_STATS                     = 0x2056,
-};
-
-enum wfx_hif_op_power_mode {
-	HIF_OP_POWER_MODE_ACTIVE    = 0x0,
-	HIF_OP_POWER_MODE_DOZE      = 0x1,
-	HIF_OP_POWER_MODE_QUIESCENT = 0x2
-};
-
-struct wfx_hif_mib_gl_operational_power_mode {
-	u8     power_mode:4;
-	u8     reserved1:3;
-	u8     wup_ind_activation:1;
-	u8     reserved2[3];
-} __packed;
-
-struct wfx_hif_mib_gl_set_multi_msg {
-	u8     enable_multi_tx_conf:1;
-	u8     reserved1:7;
-	u8     reserved2[3];
-} __packed;
-
-enum wfx_hif_arp_ns_frame_treatment {
-	HIF_ARP_NS_FILTERING_DISABLE = 0x0,
-	HIF_ARP_NS_FILTERING_ENABLE  = 0x1,
-	HIF_ARP_NS_REPLY_ENABLE      = 0x2
-};
-
-struct wfx_hif_mib_arp_ip_addr_table {
-	u8     condition_idx;
-	u8     arp_enable;
-	u8     reserved[2];
-	u8     ipv4_address[HIF_API_IPV4_ADDRESS_SIZE];
-} __packed;
-
-struct wfx_hif_mib_rx_filter {
-	u8     reserved1:1;
-	u8     bssid_filter:1;
-	u8     reserved2:1;
-	u8     fwd_probe_req:1;
-	u8     keep_alive_filter:1;
-	u8     reserved3:3;
-	u8     reserved4[3];
-} __packed;
-
-struct wfx_hif_ie_table_entry {
-	u8     ie_id;
-	u8     has_changed:1;
-	u8     no_longer:1;
-	u8     has_appeared:1;
-	u8     reserved:1;
-	u8     num_match_data:4;
-	u8     oui[3];
-	u8     match_data[3];
-} __packed;
-
-struct wfx_hif_mib_bcn_filter_table {
-	__le32 num_of_info_elmts;
-	struct wfx_hif_ie_table_entry ie_table[];
-} __packed;
-
-enum wfx_hif_beacon_filter {
-	HIF_BEACON_FILTER_DISABLE  = 0x0,
-	HIF_BEACON_FILTER_ENABLE   = 0x1,
-	HIF_BEACON_FILTER_AUTO_ERP = 0x2
-};
-
-struct wfx_hif_mib_bcn_filter_enable {
-	__le32 enable;
-	__le32 bcn_count;
-} __packed;
-
-struct wfx_hif_mib_extended_count_table {
-	__le32 count_drop_plcp;
-	__le32 count_drop_fcs;
-	__le32 count_tx_frames;
-	__le32 count_rx_frames;
-	__le32 count_rx_frames_failed;
-	__le32 count_drop_decryption;
-	__le32 count_drop_tkip_mic;
-	__le32 count_drop_no_key;
-	__le32 count_tx_frames_multicast;
-	__le32 count_tx_frames_success;
-	__le32 count_tx_frames_failed;
-	__le32 count_tx_frames_retried;
-	__le32 count_tx_frames_multi_retried;
-	__le32 count_drop_duplicate;
-	__le32 count_rts_success;
-	__le32 count_rts_failed;
-	__le32 count_ack_failed;
-	__le32 count_rx_frames_multicast;
-	__le32 count_rx_frames_success;
-	__le32 count_drop_cmac_icv;
-	__le32 count_drop_cmac_replay;
-	__le32 count_drop_ccmp_replay;
-	__le32 count_drop_bip_mic;
-	__le32 count_rx_bcn_success;
-	__le32 count_rx_bcn_miss;
-	__le32 count_rx_bcn_dtim;
-	__le32 count_rx_bcn_dtim_aid0_clr;
-	__le32 count_rx_bcn_dtim_aid0_set;
-	__le32 reserved[12];
-} __packed;
-
-struct wfx_hif_mib_count_table {
-	__le32 count_drop_plcp;
-	__le32 count_drop_fcs;
-	__le32 count_tx_frames;
-	__le32 count_rx_frames;
-	__le32 count_rx_frames_failed;
-	__le32 count_drop_decryption;
-	__le32 count_drop_tkip_mic;
-	__le32 count_drop_no_key;
-	__le32 count_tx_frames_multicast;
-	__le32 count_tx_frames_success;
-	__le32 count_tx_frames_failed;
-	__le32 count_tx_frames_retried;
-	__le32 count_tx_frames_multi_retried;
-	__le32 count_drop_duplicate;
-	__le32 count_rts_success;
-	__le32 count_rts_failed;
-	__le32 count_ack_failed;
-	__le32 count_rx_frames_multicast;
-	__le32 count_rx_frames_success;
-	__le32 count_drop_cmac_icv;
-	__le32 count_drop_cmac_replay;
-	__le32 count_drop_ccmp_replay;
-	__le32 count_drop_bip_mic;
-} __packed;
-
-struct wfx_hif_mib_mac_address {
-	u8     mac_addr[ETH_ALEN];
-	__le16 reserved;
-} __packed;
-
-struct wfx_hif_mib_wep_default_key_id {
-	u8     wep_default_key_id;
-	u8     reserved[3];
-} __packed;
-
-struct wfx_hif_mib_dot11_rts_threshold {
-	__le32 threshold;
-} __packed;
-
-struct wfx_hif_mib_slot_time {
-	__le32 slot_time;
-} __packed;
-
-struct wfx_hif_mib_current_tx_power_level {
-	__le32 power_level; /* signed value */
-} __packed;
-
-struct wfx_hif_mib_non_erp_protection {
-	u8     use_cts_to_self:1;
-	u8     reserved1:7;
-	u8     reserved2[3];
-} __packed;
-
-enum wfx_hif_tmplt {
-	HIF_TMPLT_PRBREQ = 0x0,
-	HIF_TMPLT_BCN    = 0x1,
-	HIF_TMPLT_NULL   = 0x2,
-	HIF_TMPLT_QOSNUL = 0x3,
-	HIF_TMPLT_PSPOLL = 0x4,
-	HIF_TMPLT_PRBRES = 0x5,
-	HIF_TMPLT_ARP    = 0x6,
-	HIF_TMPLT_NA     = 0x7
-};
-
-#define HIF_API_MAX_TEMPLATE_FRAME_SIZE 700
-
-struct wfx_hif_mib_template_frame {
-	u8     frame_type;
-	u8     init_rate:7;
-	u8     mode:1;
-	__le16 frame_length;
-	u8     frame[];
-} __packed;
-
-struct wfx_hif_mib_beacon_wake_up_period {
-	u8     wakeup_period_min;
-	u8     receive_dtim:1;
-	u8     reserved1:7;
-	u8     wakeup_period_max;
-	u8     reserved2;
-} __packed;
-
-struct wfx_hif_mib_rcpi_rssi_threshold {
-	u8     detection:1;
-	u8     rcpi_rssi:1;
-	u8     upperthresh:1;
-	u8     lowerthresh:1;
-	u8     reserved:4;
-	u8     lower_threshold;
-	u8     upper_threshold;
-	u8     rolling_average_count;
-} __packed;
-
-#define DEFAULT_BA_MAX_RX_BUFFER_SIZE 16
-
-struct wfx_hif_mib_block_ack_policy {
-	u8     block_ack_tx_tid_policy;
-	u8     reserved1;
-	u8     block_ack_rx_tid_policy;
-	u8     block_ack_rx_max_buffer_size;
-} __packed;
-
-enum wfx_hif_mpdu_start_spacing {
-	HIF_MPDU_START_SPACING_NO_RESTRIC = 0x0,
-	HIF_MPDU_START_SPACING_QUARTER    = 0x1,
-	HIF_MPDU_START_SPACING_HALF       = 0x2,
-	HIF_MPDU_START_SPACING_ONE        = 0x3,
-	HIF_MPDU_START_SPACING_TWO        = 0x4,
-	HIF_MPDU_START_SPACING_FOUR       = 0x5,
-	HIF_MPDU_START_SPACING_EIGHT      = 0x6,
-	HIF_MPDU_START_SPACING_SIXTEEN    = 0x7
-};
-
-struct wfx_hif_mib_set_association_mode {
-	u8     preambtype_use:1;
-	u8     mode:1;
-	u8     rateset:1;
-	u8     spacing:1;
-	u8     reserved1:4;
-	u8     short_preamble:1;
-	u8     reserved2:7;
-	u8     greenfield:1;
-	u8     reserved3:7;
-	u8     mpdu_start_spacing;
-	__le32 basic_rate_set;
-} __packed;
-
-struct wfx_hif_mib_set_uapsd_information {
-	u8     trig_bckgrnd:1;
-	u8     trig_be:1;
-	u8     trig_video:1;
-	u8     trig_voice:1;
-	u8     reserved1:4;
-	u8     deliv_bckgrnd:1;
-	u8     deliv_be:1;
-	u8     deliv_video:1;
-	u8     deliv_voice:1;
-	u8     reserved2:4;
-	__le16 min_auto_trigger_interval;
-	__le16 max_auto_trigger_interval;
-	__le16 auto_trigger_step;
-} __packed;
-
-struct wfx_hif_tx_rate_retry_policy {
-	u8     policy_index;
-	u8     short_retry_count;
-	u8     long_retry_count;
-	u8     first_rate_sel:2;
-	u8     terminate:1;
-	u8     count_init:1;
-	u8     reserved1:4;
-	u8     rate_recovery_count;
-	u8     reserved2[3];
-	u8     rates[12];
-} __packed;
-
-#define HIF_TX_RETRY_POLICY_MAX     15
-#define HIF_TX_RETRY_POLICY_INVALID HIF_TX_RETRY_POLICY_MAX
-
-struct wfx_hif_mib_set_tx_rate_retry_policy {
-	u8     num_tx_rate_policies;
-	u8     reserved[3];
-	struct wfx_hif_tx_rate_retry_policy tx_rate_retry_policy[];
-} __packed;
-
-struct wfx_hif_mib_protected_mgmt_policy {
-	u8     pmf_enable:1;
-	u8     unpmf_allowed:1;
-	u8     host_enc_auth_frames:1;
-	u8     reserved1:5;
-	u8     reserved2[3];
-} __packed;
-
-struct wfx_hif_mib_keep_alive_period {
-	__le16 keep_alive_period;
-	u8     reserved[2];
-} __packed;
-
-#endif
diff --git a/drivers/staging/wfx/hif_rx.c b/drivers/staging/wfx/hif_rx.c
deleted file mode 100644
index 64ca8acb8e4f..000000000000
--- a/drivers/staging/wfx/hif_rx.c
+++ /dev/null
@@ -1,391 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Handling of the chip-to-host events (aka indications) of the hardware API.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/skbuff.h>
-#include <linux/etherdevice.h>
-
-#include "hif_rx.h"
-#include "wfx.h"
-#include "scan.h"
-#include "bh.h"
-#include "sta.h"
-#include "data_rx.h"
-#include "hif_api_cmd.h"
-
-static int wfx_hif_generic_confirm(struct wfx_dev *wdev,
-				   const struct wfx_hif_msg *hif, const void *buf)
-{
-	/* All confirm messages start with status */
-	int status = le32_to_cpup((__le32 *)buf);
-	int cmd = hif->id;
-	int len = le16_to_cpu(hif->len) - 4; /* drop header */
-
-	WARN(!mutex_is_locked(&wdev->hif_cmd.lock), "data locking error");
-
-	if (!wdev->hif_cmd.buf_send) {
-		dev_warn(wdev->dev, "unexpected confirmation: 0x%.2x\n", cmd);
-		return -EINVAL;
-	}
-
-	if (cmd != wdev->hif_cmd.buf_send->id) {
-		dev_warn(wdev->dev, "chip response mismatch request: 0x%.2x vs 0x%.2x\n",
-			 cmd, wdev->hif_cmd.buf_send->id);
-		return -EINVAL;
-	}
-
-	if (wdev->hif_cmd.buf_recv) {
-		if (wdev->hif_cmd.len_recv >= len && len > 0)
-			memcpy(wdev->hif_cmd.buf_recv, buf, len);
-		else
-			status = -EIO;
-	}
-	wdev->hif_cmd.ret = status;
-
-	complete(&wdev->hif_cmd.done);
-	return status;
-}
-
-static int wfx_hif_tx_confirm(struct wfx_dev *wdev,
-			      const struct wfx_hif_msg *hif, const void *buf)
-{
-	const struct wfx_hif_cnf_tx *body = buf;
-
-	wfx_tx_confirm_cb(wdev, body);
-	return 0;
-}
-
-static int wfx_hif_multi_tx_confirm(struct wfx_dev *wdev,
-				    const struct wfx_hif_msg *hif, const void *buf)
-{
-	const struct wfx_hif_cnf_multi_transmit *body = buf;
-	int i;
-
-	WARN(body->num_tx_confs <= 0, "corrupted message");
-	for (i = 0; i < body->num_tx_confs; i++)
-		wfx_tx_confirm_cb(wdev, &body->tx_conf_payload[i]);
-	return 0;
-}
-
-static int wfx_hif_startup_indication(struct wfx_dev *wdev,
-				      const struct wfx_hif_msg *hif, const void *buf)
-{
-	const struct wfx_hif_ind_startup *body = buf;
-
-	if (body->status || body->firmware_type > 4) {
-		dev_err(wdev->dev, "received invalid startup indication");
-		return -EINVAL;
-	}
-	memcpy(&wdev->hw_caps, body, sizeof(struct wfx_hif_ind_startup));
-	complete(&wdev->firmware_ready);
-	return 0;
-}
-
-static int wfx_hif_wakeup_indication(struct wfx_dev *wdev,
-				     const struct wfx_hif_msg *hif, const void *buf)
-{
-	if (!wdev->pdata.gpio_wakeup || gpiod_get_value(wdev->pdata.gpio_wakeup) == 0) {
-		dev_warn(wdev->dev, "unexpected wake-up indication\n");
-		return -EIO;
-	}
-	return 0;
-}
-
-static int wfx_hif_receive_indication(struct wfx_dev *wdev, const struct wfx_hif_msg *hif,
-				      const void *buf, struct sk_buff *skb)
-{
-	struct wfx_vif *wvif = wdev_to_wvif(wdev, hif->interface);
-	const struct wfx_hif_ind_rx *body = buf;
-
-	if (!wvif) {
-		dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);
-		return -EIO;
-	}
-	skb_pull(skb, sizeof(struct wfx_hif_msg) + sizeof(struct wfx_hif_ind_rx));
-	wfx_rx_cb(wvif, body, skb);
-
-	return 0;
-}
-
-static int wfx_hif_event_indication(struct wfx_dev *wdev,
-				    const struct wfx_hif_msg *hif, const void *buf)
-{
-	struct wfx_vif *wvif = wdev_to_wvif(wdev, hif->interface);
-	const struct wfx_hif_ind_event *body = buf;
-	int type = le32_to_cpu(body->event_id);
-
-	if (!wvif) {
-		dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);
-		return -EIO;
-	}
-
-	switch (type) {
-	case HIF_EVENT_IND_RCPI_RSSI:
-		wfx_event_report_rssi(wvif, body->event_data.rcpi_rssi);
-		break;
-	case HIF_EVENT_IND_BSSLOST:
-		schedule_delayed_work(&wvif->beacon_loss_work, 0);
-		break;
-	case HIF_EVENT_IND_BSSREGAINED:
-		cancel_delayed_work(&wvif->beacon_loss_work);
-		dev_dbg(wdev->dev, "ignore BSSREGAINED indication\n");
-		break;
-	case HIF_EVENT_IND_PS_MODE_ERROR:
-		dev_warn(wdev->dev, "error while processing power save request: %d\n",
-			 le32_to_cpu(body->event_data.ps_mode_error));
-		break;
-	default:
-		dev_warn(wdev->dev, "unhandled event indication: %.2x\n", type);
-		break;
-	}
-	return 0;
-}
-
-static int wfx_hif_pm_mode_complete_indication(struct wfx_dev *wdev,
-					       const struct wfx_hif_msg *hif, const void *buf)
-{
-	struct wfx_vif *wvif = wdev_to_wvif(wdev, hif->interface);
-
-	if (!wvif) {
-		dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);
-		return -EIO;
-	}
-	complete(&wvif->set_pm_mode_complete);
-
-	return 0;
-}
-
-static int wfx_hif_scan_complete_indication(struct wfx_dev *wdev,
-					    const struct wfx_hif_msg *hif, const void *buf)
-{
-	struct wfx_vif *wvif = wdev_to_wvif(wdev, hif->interface);
-	const struct wfx_hif_ind_scan_cmpl *body = buf;
-
-	if (!wvif) {
-		dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);
-		return -EIO;
-	}
-
-	wfx_scan_complete(wvif, body->num_channels_completed);
-
-	return 0;
-}
-
-static int wfx_hif_join_complete_indication(struct wfx_dev *wdev,
-					    const struct wfx_hif_msg *hif, const void *buf)
-{
-	struct wfx_vif *wvif = wdev_to_wvif(wdev, hif->interface);
-
-	if (!wvif) {
-		dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);
-		return -EIO;
-	}
-	dev_warn(wdev->dev, "unattended JoinCompleteInd\n");
-
-	return 0;
-}
-
-static int wfx_hif_suspend_resume_indication(struct wfx_dev *wdev,
-					     const struct wfx_hif_msg *hif, const void *buf)
-{
-	const struct wfx_hif_ind_suspend_resume_tx *body = buf;
-	struct wfx_vif *wvif;
-
-	if (body->bc_mc_only) {
-		wvif = wdev_to_wvif(wdev, hif->interface);
-		if (!wvif) {
-			dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);
-			return -EIO;
-		}
-		if (body->resume)
-			wfx_suspend_resume_mc(wvif, STA_NOTIFY_AWAKE);
-		else
-			wfx_suspend_resume_mc(wvif, STA_NOTIFY_SLEEP);
-	} else {
-		WARN(body->peer_sta_set, "misunderstood indication");
-		WARN(hif->interface != 2, "misunderstood indication");
-		if (body->resume)
-			wfx_suspend_hot_dev(wdev, STA_NOTIFY_AWAKE);
-		else
-			wfx_suspend_hot_dev(wdev, STA_NOTIFY_SLEEP);
-	}
-
-	return 0;
-}
-
-static int wfx_hif_generic_indication(struct wfx_dev *wdev,
-				      const struct wfx_hif_msg *hif, const void *buf)
-{
-	const struct wfx_hif_ind_generic *body = buf;
-	int type = le32_to_cpu(body->type);
-
-	switch (type) {
-	case HIF_GENERIC_INDICATION_TYPE_RAW:
-		return 0;
-	case HIF_GENERIC_INDICATION_TYPE_STRING:
-		dev_info(wdev->dev, "firmware says: %s\n", (char *)&body->data);
-		return 0;
-	case HIF_GENERIC_INDICATION_TYPE_RX_STATS:
-		mutex_lock(&wdev->rx_stats_lock);
-		/* Older firmware send a generic indication beside RxStats */
-		if (!wfx_api_older_than(wdev, 1, 4))
-			dev_info(wdev->dev, "Rx test ongoing. Temperature: %d degrees C\n",
-				 body->data.rx_stats.current_temp);
-		memcpy(&wdev->rx_stats, &body->data.rx_stats, sizeof(wdev->rx_stats));
-		mutex_unlock(&wdev->rx_stats_lock);
-		return 0;
-	case HIF_GENERIC_INDICATION_TYPE_TX_POWER_LOOP_INFO:
-		mutex_lock(&wdev->tx_power_loop_info_lock);
-		memcpy(&wdev->tx_power_loop_info, &body->data.tx_power_loop_info,
-		       sizeof(wdev->tx_power_loop_info));
-		mutex_unlock(&wdev->tx_power_loop_info_lock);
-		return 0;
-	default:
-		dev_err(wdev->dev, "generic_indication: unknown indication type: %#.8x\n", type);
-		return -EIO;
-	}
-}
-
-static const struct {
-	int val;
-	const char *str;
-	bool has_param;
-} hif_errors[] = {
-	{ HIF_ERROR_FIRMWARE_ROLLBACK,
-		"rollback status" },
-	{ HIF_ERROR_FIRMWARE_DEBUG_ENABLED,
-		"debug feature enabled" },
-	{ HIF_ERROR_PDS_PAYLOAD,
-		"PDS version is not supported" },
-	{ HIF_ERROR_PDS_TESTFEATURE,
-		"PDS ask for an unknown test mode" },
-	{ HIF_ERROR_OOR_VOLTAGE,
-		"out-of-range power supply voltage", true },
-	{ HIF_ERROR_OOR_TEMPERATURE,
-		"out-of-range temperature", true },
-	{ HIF_ERROR_SLK_REQ_DURING_KEY_EXCHANGE,
-		"secure link does not expect request during key exchange" },
-	{ HIF_ERROR_SLK_SESSION_KEY,
-		"secure link session key is invalid" },
-	{ HIF_ERROR_SLK_OVERFLOW,
-		"secure link overflow" },
-	{ HIF_ERROR_SLK_WRONG_ENCRYPTION_STATE,
-		"secure link messages list does not match message encryption" },
-	{ HIF_ERROR_SLK_UNCONFIGURED,
-		"secure link not yet configured" },
-	{ HIF_ERROR_HIF_BUS_FREQUENCY_TOO_LOW,
-		"bus clock is too slow (<1kHz)" },
-	{ HIF_ERROR_HIF_RX_DATA_TOO_LARGE,
-		"HIF message too large" },
-	/* Following errors only exists in old firmware versions: */
-	{ HIF_ERROR_HIF_TX_QUEUE_FULL,
-		"HIF messages queue is full" },
-	{ HIF_ERROR_HIF_BUS,
-		"HIF bus" },
-	{ HIF_ERROR_SLK_MULTI_TX_UNSUPPORTED,
-		"secure link does not support multi-tx confirmations" },
-	{ HIF_ERROR_SLK_OUTDATED_SESSION_KEY,
-		"secure link session key is outdated" },
-	{ HIF_ERROR_SLK_DECRYPTION,
-		"secure link params (nonce or tag) mismatch" },
-};
-
-static int wfx_hif_error_indication(struct wfx_dev *wdev,
-				    const struct wfx_hif_msg *hif, const void *buf)
-{
-	const struct wfx_hif_ind_error *body = buf;
-	int type = le32_to_cpu(body->type);
-	int param = (s8)body->data[0];
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(hif_errors); i++)
-		if (type == hif_errors[i].val)
-			break;
-	if (i < ARRAY_SIZE(hif_errors))
-		if (hif_errors[i].has_param)
-			dev_err(wdev->dev, "asynchronous error: %s: %d\n",
-				hif_errors[i].str, param);
-		else
-			dev_err(wdev->dev, "asynchronous error: %s\n", hif_errors[i].str);
-	else
-		dev_err(wdev->dev, "asynchronous error: unknown: %08x\n", type);
-	print_hex_dump(KERN_INFO, "hif: ", DUMP_PREFIX_OFFSET,
-		       16, 1, hif, le16_to_cpu(hif->len), false);
-	wdev->chip_frozen = true;
-
-	return 0;
-};
-
-static int wfx_hif_exception_indication(struct wfx_dev *wdev,
-					const struct wfx_hif_msg *hif, const void *buf)
-{
-	const struct wfx_hif_ind_exception *body = buf;
-	int type = le32_to_cpu(body->type);
-
-	if (type == 4)
-		dev_err(wdev->dev, "firmware assert %d\n", le32_to_cpup((__le32 *)body->data));
-	else
-		dev_err(wdev->dev, "firmware exception\n");
-	print_hex_dump(KERN_INFO, "hif: ", DUMP_PREFIX_OFFSET,
-		       16, 1, hif, le16_to_cpu(hif->len), false);
-	wdev->chip_frozen = true;
-
-	return -1;
-}
-
-static const struct {
-	int msg_id;
-	int (*handler)(struct wfx_dev *wdev, const struct wfx_hif_msg *hif, const void *buf);
-} hif_handlers[] = {
-	/* Confirmations */
-	{ HIF_CNF_ID_TX,                wfx_hif_tx_confirm },
-	{ HIF_CNF_ID_MULTI_TRANSMIT,    wfx_hif_multi_tx_confirm },
-	/* Indications */
-	{ HIF_IND_ID_STARTUP,           wfx_hif_startup_indication },
-	{ HIF_IND_ID_WAKEUP,            wfx_hif_wakeup_indication },
-	{ HIF_IND_ID_JOIN_COMPLETE,     wfx_hif_join_complete_indication },
-	{ HIF_IND_ID_SET_PM_MODE_CMPL,  wfx_hif_pm_mode_complete_indication },
-	{ HIF_IND_ID_SCAN_CMPL,         wfx_hif_scan_complete_indication },
-	{ HIF_IND_ID_SUSPEND_RESUME_TX, wfx_hif_suspend_resume_indication },
-	{ HIF_IND_ID_EVENT,             wfx_hif_event_indication },
-	{ HIF_IND_ID_GENERIC,           wfx_hif_generic_indication },
-	{ HIF_IND_ID_ERROR,             wfx_hif_error_indication },
-	{ HIF_IND_ID_EXCEPTION,         wfx_hif_exception_indication },
-	/* FIXME: allocate skb_p from wfx_hif_receive_indication and make it generic */
-	//{ HIF_IND_ID_RX,              wfx_hif_receive_indication },
-};
-
-void wfx_handle_rx(struct wfx_dev *wdev, struct sk_buff *skb)
-{
-	int i;
-	const struct wfx_hif_msg *hif = (const struct wfx_hif_msg *)skb->data;
-	int hif_id = hif->id;
-
-	if (hif_id == HIF_IND_ID_RX) {
-		/* wfx_hif_receive_indication take care of skb lifetime */
-		wfx_hif_receive_indication(wdev, hif, hif->body, skb);
-		return;
-	}
-	/* Note: mutex_is_lock cause an implicit memory barrier that protect buf_send */
-	if (mutex_is_locked(&wdev->hif_cmd.lock) &&
-	    wdev->hif_cmd.buf_send && wdev->hif_cmd.buf_send->id == hif_id) {
-		wfx_hif_generic_confirm(wdev, hif, hif->body);
-		goto free;
-	}
-	for (i = 0; i < ARRAY_SIZE(hif_handlers); i++) {
-		if (hif_handlers[i].msg_id == hif_id) {
-			if (hif_handlers[i].handler)
-				hif_handlers[i].handler(wdev, hif, hif->body);
-			goto free;
-		}
-	}
-	if (hif_id & HIF_ID_IS_INDICATION)
-		dev_err(wdev->dev, "unsupported HIF indication: ID %02x\n", hif_id);
-	else
-		dev_err(wdev->dev, "unexpected HIF confirmation: ID %02x\n", hif_id);
-free:
-	dev_kfree_skb(skb);
-}
diff --git a/drivers/staging/wfx/hif_rx.h b/drivers/staging/wfx/hif_rx.h
deleted file mode 100644
index 96543b81fa77..000000000000
--- a/drivers/staging/wfx/hif_rx.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Handling of the chip-to-host events (aka indications) of the hardware API.
- *
- * Copyright (c) 2017-2019, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- * Copyright (C) 2010, ST-Ericsson SA
- */
-#ifndef WFX_HIF_RX_H
-#define WFX_HIF_RX_H
-
-struct wfx_dev;
-struct sk_buff;
-
-void wfx_handle_rx(struct wfx_dev *wdev, struct sk_buff *skb);
-
-#endif
diff --git a/drivers/staging/wfx/hif_tx.c b/drivers/staging/wfx/hif_tx.c
deleted file mode 100644
index ae3cc5919dcd..000000000000
--- a/drivers/staging/wfx/hif_tx.c
+++ /dev/null
@@ -1,490 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Implementation of the host-to-chip commands (aka request/confirmation) of the
- * hardware API.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/etherdevice.h>
-
-#include "hif_tx.h"
-#include "wfx.h"
-#include "bh.h"
-#include "hwio.h"
-#include "debug.h"
-#include "sta.h"
-
-void wfx_init_hif_cmd(struct wfx_hif_cmd *hif_cmd)
-{
-	init_completion(&hif_cmd->ready);
-	init_completion(&hif_cmd->done);
-	mutex_init(&hif_cmd->lock);
-}
-
-static void wfx_fill_header(struct wfx_hif_msg *hif, int if_id, unsigned int cmd, size_t size)
-{
-	if (if_id == -1)
-		if_id = 2;
-
-	WARN(cmd > 0x3f, "invalid hardware command %#.2x", cmd);
-	WARN(size > 0xFFF, "requested buffer is too large: %zu bytes", size);
-	WARN(if_id > 0x3, "invalid interface ID %d", if_id);
-
-	hif->len = cpu_to_le16(size + 4);
-	hif->id = cmd;
-	hif->interface = if_id;
-}
-
-static void *wfx_alloc_hif(size_t body_len, struct wfx_hif_msg **hif)
-{
-	*hif = kzalloc(sizeof(struct wfx_hif_msg) + body_len, GFP_KERNEL);
-	if (*hif)
-		return (*hif)->body;
-	else
-		return NULL;
-}
-
-int wfx_cmd_send(struct wfx_dev *wdev, struct wfx_hif_msg *request,
-		 void *reply, size_t reply_len, bool no_reply)
-{
-	const char *mib_name = "";
-	const char *mib_sep = "";
-	int cmd = request->id;
-	int vif = request->interface;
-	int ret;
-
-	/* Do not wait for any reply if chip is frozen */
-	if (wdev->chip_frozen)
-		return -ETIMEDOUT;
-
-	mutex_lock(&wdev->hif_cmd.lock);
-	WARN(wdev->hif_cmd.buf_send, "data locking error");
-
-	/* Note: call to complete() below has an implicit memory barrier that hopefully protect
-	 * buf_send
-	 */
-	wdev->hif_cmd.buf_send = request;
-	wdev->hif_cmd.buf_recv = reply;
-	wdev->hif_cmd.len_recv = reply_len;
-	complete(&wdev->hif_cmd.ready);
-
-	wfx_bh_request_tx(wdev);
-
-	if (no_reply) {
-		/* Chip won't reply. Ensure the wq has send the buffer before to continue. */
-		flush_workqueue(system_highpri_wq);
-		ret = 0;
-		goto end;
-	}
-
-	if (wdev->poll_irq)
-		wfx_bh_poll_irq(wdev);
-
-	ret = wait_for_completion_timeout(&wdev->hif_cmd.done, 1 * HZ);
-	if (!ret) {
-		dev_err(wdev->dev, "chip is abnormally long to answer\n");
-		reinit_completion(&wdev->hif_cmd.ready);
-		ret = wait_for_completion_timeout(&wdev->hif_cmd.done, 3 * HZ);
-	}
-	if (!ret) {
-		dev_err(wdev->dev, "chip did not answer\n");
-		wfx_pending_dump_old_frames(wdev, 3000);
-		wdev->chip_frozen = true;
-		reinit_completion(&wdev->hif_cmd.done);
-		ret = -ETIMEDOUT;
-	} else {
-		ret = wdev->hif_cmd.ret;
-	}
-
-end:
-	wdev->hif_cmd.buf_send = NULL;
-	mutex_unlock(&wdev->hif_cmd.lock);
-
-	if (ret &&
-	    (cmd == HIF_REQ_ID_READ_MIB || cmd == HIF_REQ_ID_WRITE_MIB)) {
-		mib_name = wfx_get_mib_name(((u16 *)request)[2]);
-		mib_sep = "/";
-	}
-	if (ret < 0)
-		dev_err(wdev->dev, "hardware request %s%s%s (%#.2x) on vif %d returned error %d\n",
-			wfx_get_hif_name(cmd), mib_sep, mib_name, cmd, vif, ret);
-	if (ret > 0)
-		dev_warn(wdev->dev, "hardware request %s%s%s (%#.2x) on vif %d returned status %d\n",
-			 wfx_get_hif_name(cmd), mib_sep, mib_name, cmd, vif, ret);
-
-	return ret;
-}
-
-/* This function is special. After HIF_REQ_ID_SHUT_DOWN, chip won't reply to any request anymore.
- * Obviously, only call this function during device unregister.
- */
-int wfx_hif_shutdown(struct wfx_dev *wdev)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-
-	wfx_alloc_hif(0, &hif);
-	if (!hif)
-		return -ENOMEM;
-	wfx_fill_header(hif, -1, HIF_REQ_ID_SHUT_DOWN, 0);
-	ret = wfx_cmd_send(wdev, hif, NULL, 0, true);
-	if (wdev->pdata.gpio_wakeup)
-		gpiod_set_value(wdev->pdata.gpio_wakeup, 0);
-	else
-		wfx_control_reg_write(wdev, 0);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_configuration(struct wfx_dev *wdev, const u8 *conf, size_t len)
-{
-	int ret;
-	size_t buf_len = sizeof(struct wfx_hif_req_configuration) + len;
-	struct wfx_hif_msg *hif;
-	struct wfx_hif_req_configuration *body = wfx_alloc_hif(buf_len, &hif);
-
-	if (!hif)
-		return -ENOMEM;
-	body->length = cpu_to_le16(len);
-	memcpy(body->pds_data, conf, len);
-	wfx_fill_header(hif, -1, HIF_REQ_ID_CONFIGURATION, buf_len);
-	ret = wfx_cmd_send(wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_reset(struct wfx_vif *wvif, bool reset_stat)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	struct wfx_hif_req_reset *body = wfx_alloc_hif(sizeof(*body), &hif);
-
-	if (!hif)
-		return -ENOMEM;
-	body->reset_stat = reset_stat;
-	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_RESET, sizeof(*body));
-	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_read_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id, void *val, size_t val_len)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	int buf_len = sizeof(struct wfx_hif_cnf_read_mib) + val_len;
-	struct wfx_hif_req_read_mib *body = wfx_alloc_hif(sizeof(*body), &hif);
-	struct wfx_hif_cnf_read_mib *reply = kmalloc(buf_len, GFP_KERNEL);
-
-	if (!body || !reply) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	body->mib_id = cpu_to_le16(mib_id);
-	wfx_fill_header(hif, vif_id, HIF_REQ_ID_READ_MIB, sizeof(*body));
-	ret = wfx_cmd_send(wdev, hif, reply, buf_len, false);
-
-	if (!ret && mib_id != le16_to_cpu(reply->mib_id)) {
-		dev_warn(wdev->dev, "%s: confirmation mismatch request\n", __func__);
-		ret = -EIO;
-	}
-	if (ret == -ENOMEM)
-		dev_err(wdev->dev, "buffer is too small to receive %s (%zu < %d)\n",
-			wfx_get_mib_name(mib_id), val_len, le16_to_cpu(reply->length));
-	if (!ret)
-		memcpy(val, &reply->mib_data, le16_to_cpu(reply->length));
-	else
-		memset(val, 0xFF, val_len);
-out:
-	kfree(hif);
-	kfree(reply);
-	return ret;
-}
-
-int wfx_hif_write_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id, void *val, size_t val_len)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	int buf_len = sizeof(struct wfx_hif_req_write_mib) + val_len;
-	struct wfx_hif_req_write_mib *body = wfx_alloc_hif(buf_len, &hif);
-
-	if (!hif)
-		return -ENOMEM;
-	body->mib_id = cpu_to_le16(mib_id);
-	body->length = cpu_to_le16(val_len);
-	memcpy(&body->mib_data, val, val_len);
-	wfx_fill_header(hif, vif_id, HIF_REQ_ID_WRITE_MIB, buf_len);
-	ret = wfx_cmd_send(wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_scan(struct wfx_vif *wvif, struct cfg80211_scan_request *req,
-		 int chan_start_idx, int chan_num)
-{
-	int ret, i;
-	struct wfx_hif_msg *hif;
-	size_t buf_len = sizeof(struct wfx_hif_req_start_scan_alt) + chan_num * sizeof(u8);
-	struct wfx_hif_req_start_scan_alt *body = wfx_alloc_hif(buf_len, &hif);
-
-	WARN(chan_num > HIF_API_MAX_NB_CHANNELS, "invalid params");
-	WARN(req->n_ssids > HIF_API_MAX_NB_SSIDS, "invalid params");
-
-	if (!hif)
-		return -ENOMEM;
-	for (i = 0; i < req->n_ssids; i++) {
-		memcpy(body->ssid_def[i].ssid, req->ssids[i].ssid, IEEE80211_MAX_SSID_LEN);
-		body->ssid_def[i].ssid_length = cpu_to_le32(req->ssids[i].ssid_len);
-	}
-	body->num_of_ssids = HIF_API_MAX_NB_SSIDS;
-	body->maintain_current_bss = 1;
-	body->disallow_ps = 1;
-	body->tx_power_level = cpu_to_le32(req->channels[chan_start_idx]->max_power);
-	body->num_of_channels = chan_num;
-	for (i = 0; i < chan_num; i++)
-		body->channel_list[i] = req->channels[i + chan_start_idx]->hw_value;
-	if (req->no_cck)
-		body->max_transmit_rate = API_RATE_INDEX_G_6MBPS;
-	else
-		body->max_transmit_rate = API_RATE_INDEX_B_1MBPS;
-	if (req->channels[chan_start_idx]->flags & IEEE80211_CHAN_NO_IR) {
-		body->min_channel_time = cpu_to_le32(50);
-		body->max_channel_time = cpu_to_le32(150);
-	} else {
-		body->min_channel_time = cpu_to_le32(10);
-		body->max_channel_time = cpu_to_le32(50);
-		body->num_of_probe_requests = 2;
-		body->probe_delay = 100;
-	}
-
-	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_START_SCAN, buf_len);
-	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_stop_scan(struct wfx_vif *wvif)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	/* body associated to HIF_REQ_ID_STOP_SCAN is empty */
-	wfx_alloc_hif(0, &hif);
-
-	if (!hif)
-		return -ENOMEM;
-	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_STOP_SCAN, 0);
-	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_join(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
-		 struct ieee80211_channel *channel, const u8 *ssid, int ssidlen)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	struct wfx_hif_req_join *body = wfx_alloc_hif(sizeof(*body), &hif);
-
-	WARN_ON(!conf->beacon_int);
-	WARN_ON(!conf->basic_rates);
-	WARN_ON(sizeof(body->ssid) < ssidlen);
-	WARN(!conf->ibss_joined && !ssidlen, "joining an unknown BSS");
-	if (!hif)
-		return -ENOMEM;
-	body->infrastructure_bss_mode = !conf->ibss_joined;
-	body->short_preamble = conf->use_short_preamble;
-	body->probe_for_join = !(channel->flags & IEEE80211_CHAN_NO_IR);
-	body->channel_number = channel->hw_value;
-	body->beacon_interval = cpu_to_le32(conf->beacon_int);
-	body->basic_rate_set = cpu_to_le32(wfx_rate_mask_to_hw(wvif->wdev, conf->basic_rates));
-	memcpy(body->bssid, conf->bssid, sizeof(body->bssid));
-	if (ssid) {
-		body->ssid_length = cpu_to_le32(ssidlen);
-		memcpy(body->ssid, ssid, ssidlen);
-	}
-	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_JOIN, sizeof(*body));
-	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_set_bss_params(struct wfx_vif *wvif, int aid, int beacon_lost_count)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	struct wfx_hif_req_set_bss_params *body = wfx_alloc_hif(sizeof(*body), &hif);
-
-	if (!hif)
-		return -ENOMEM;
-	body->aid = cpu_to_le16(aid);
-	body->beacon_lost_count = beacon_lost_count;
-	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_SET_BSS_PARAMS, sizeof(*body));
-	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_add_key(struct wfx_dev *wdev, const struct wfx_hif_req_add_key *arg)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	/* FIXME: only send necessary bits */
-	struct wfx_hif_req_add_key *body = wfx_alloc_hif(sizeof(*body), &hif);
-
-	if (!hif)
-		return -ENOMEM;
-	/* FIXME: swap bytes as necessary in body */
-	memcpy(body, arg, sizeof(*body));
-	if (wfx_api_older_than(wdev, 1, 5))
-		/* Legacy firmwares expect that add_key to be sent on right interface. */
-		wfx_fill_header(hif, arg->int_id, HIF_REQ_ID_ADD_KEY, sizeof(*body));
-	else
-		wfx_fill_header(hif, -1, HIF_REQ_ID_ADD_KEY, sizeof(*body));
-	ret = wfx_cmd_send(wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_remove_key(struct wfx_dev *wdev, int idx)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	struct wfx_hif_req_remove_key *body = wfx_alloc_hif(sizeof(*body), &hif);
-
-	if (!hif)
-		return -ENOMEM;
-	body->entry_index = idx;
-	wfx_fill_header(hif, -1, HIF_REQ_ID_REMOVE_KEY, sizeof(*body));
-	ret = wfx_cmd_send(wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_set_edca_queue_params(struct wfx_vif *wvif, u16 queue,
-				  const struct ieee80211_tx_queue_params *arg)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	struct wfx_hif_req_edca_queue_params *body = wfx_alloc_hif(sizeof(*body), &hif);
-
-	if (!body)
-		return -ENOMEM;
-
-	WARN_ON(arg->aifs > 255);
-	if (!hif)
-		return -ENOMEM;
-	body->aifsn = arg->aifs;
-	body->cw_min = cpu_to_le16(arg->cw_min);
-	body->cw_max = cpu_to_le16(arg->cw_max);
-	body->tx_op_limit = cpu_to_le16(arg->txop * USEC_PER_TXOP);
-	body->queue_id = 3 - queue;
-	/* API 2.0 has changed queue IDs values */
-	if (wfx_api_older_than(wvif->wdev, 2, 0) && queue == IEEE80211_AC_BE)
-		body->queue_id = HIF_QUEUE_ID_BACKGROUND;
-	if (wfx_api_older_than(wvif->wdev, 2, 0) && queue == IEEE80211_AC_BK)
-		body->queue_id = HIF_QUEUE_ID_BESTEFFORT;
-	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_EDCA_QUEUE_PARAMS, sizeof(*body));
-	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_set_pm(struct wfx_vif *wvif, bool ps, int dynamic_ps_timeout)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	struct wfx_hif_req_set_pm_mode *body = wfx_alloc_hif(sizeof(*body), &hif);
-
-	if (!body)
-		return -ENOMEM;
-
-	if (!hif)
-		return -ENOMEM;
-	if (ps) {
-		body->enter_psm = 1;
-		/* Firmware does not support more than 128ms */
-		body->fast_psm_idle_period = min(dynamic_ps_timeout * 2, 255);
-		if (body->fast_psm_idle_period)
-			body->fast_psm = 1;
-	}
-	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_SET_PM_MODE, sizeof(*body));
-	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_start(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
-		  const struct ieee80211_channel *channel)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	struct wfx_hif_req_start *body = wfx_alloc_hif(sizeof(*body), &hif);
-
-	WARN_ON(!conf->beacon_int);
-	if (!hif)
-		return -ENOMEM;
-	body->dtim_period = conf->dtim_period;
-	body->short_preamble = conf->use_short_preamble;
-	body->channel_number = channel->hw_value;
-	body->beacon_interval = cpu_to_le32(conf->beacon_int);
-	body->basic_rate_set = cpu_to_le32(wfx_rate_mask_to_hw(wvif->wdev, conf->basic_rates));
-	body->ssid_length = conf->ssid_len;
-	memcpy(body->ssid, conf->ssid, conf->ssid_len);
-	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_START, sizeof(*body));
-	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_beacon_transmit(struct wfx_vif *wvif, bool enable)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	struct wfx_hif_req_beacon_transmit *body = wfx_alloc_hif(sizeof(*body), &hif);
-
-	if (!hif)
-		return -ENOMEM;
-	body->enable_beaconing = enable ? 1 : 0;
-	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_BEACON_TRANSMIT, sizeof(*body));
-	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_map_link(struct wfx_vif *wvif, bool unmap, u8 *mac_addr, int sta_id, bool mfp)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	struct wfx_hif_req_map_link *body = wfx_alloc_hif(sizeof(*body), &hif);
-
-	if (!hif)
-		return -ENOMEM;
-	if (mac_addr)
-		ether_addr_copy(body->mac_addr, mac_addr);
-	body->mfpc = mfp ? 1 : 0;
-	body->unmap = unmap ? 1 : 0;
-	body->peer_sta_id = sta_id;
-	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_MAP_LINK, sizeof(*body));
-	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
-
-int wfx_hif_update_ie_beacon(struct wfx_vif *wvif, const u8 *ies, size_t ies_len)
-{
-	int ret;
-	struct wfx_hif_msg *hif;
-	int buf_len = sizeof(struct wfx_hif_req_update_ie) + ies_len;
-	struct wfx_hif_req_update_ie *body = wfx_alloc_hif(buf_len, &hif);
-
-	if (!hif)
-		return -ENOMEM;
-	body->beacon = 1;
-	body->num_ies = cpu_to_le16(1);
-	memcpy(body->ie, ies, ies_len);
-	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_UPDATE_IE, buf_len);
-	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
-	kfree(hif);
-	return ret;
-}
diff --git a/drivers/staging/wfx/hif_tx.h b/drivers/staging/wfx/hif_tx.h
deleted file mode 100644
index 71817a6571f0..000000000000
--- a/drivers/staging/wfx/hif_tx.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Implementation of the host-to-chip commands (aka request/confirmation) of the
- * hardware API.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- * Copyright (C) 2010, ST-Ericsson SA
- */
-#ifndef WFX_HIF_TX_H
-#define WFX_HIF_TX_H
-
-#include <linux/types.h>
-#include <linux/mutex.h>
-#include <linux/completion.h>
-
-struct ieee80211_channel;
-struct ieee80211_bss_conf;
-struct ieee80211_tx_queue_params;
-struct cfg80211_scan_request;
-struct wfx_hif_req_add_key;
-struct wfx_dev;
-struct wfx_vif;
-
-struct wfx_hif_cmd {
-	struct mutex       lock;
-	struct completion  ready;
-	struct completion  done;
-	struct wfx_hif_msg *buf_send;
-	void               *buf_recv;
-	size_t             len_recv;
-	int                ret;
-};
-
-void wfx_init_hif_cmd(struct wfx_hif_cmd *wfx_hif_cmd);
-int wfx_cmd_send(struct wfx_dev *wdev, struct wfx_hif_msg *request,
-		 void *reply, size_t reply_len, bool async);
-
-int wfx_hif_read_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id, void *buf, size_t buf_size);
-int wfx_hif_write_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id, void *buf, size_t buf_size);
-int wfx_hif_start(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
-		  const struct ieee80211_channel *channel);
-int wfx_hif_reset(struct wfx_vif *wvif, bool reset_stat);
-int wfx_hif_join(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
-		 struct ieee80211_channel *channel, const u8 *ssid, int ssidlen);
-int wfx_hif_map_link(struct wfx_vif *wvif, bool unmap, u8 *mac_addr, int sta_id, bool mfp);
-int wfx_hif_add_key(struct wfx_dev *wdev, const struct wfx_hif_req_add_key *arg);
-int wfx_hif_remove_key(struct wfx_dev *wdev, int idx);
-int wfx_hif_set_pm(struct wfx_vif *wvif, bool ps, int dynamic_ps_timeout);
-int wfx_hif_set_bss_params(struct wfx_vif *wvif, int aid, int beacon_lost_count);
-int wfx_hif_set_edca_queue_params(struct wfx_vif *wvif, u16 queue,
-				  const struct ieee80211_tx_queue_params *arg);
-int wfx_hif_beacon_transmit(struct wfx_vif *wvif, bool enable);
-int wfx_hif_update_ie_beacon(struct wfx_vif *wvif, const u8 *ies, size_t ies_len);
-int wfx_hif_scan(struct wfx_vif *wvif, struct cfg80211_scan_request *req80211,
-		 int chan_start, int chan_num);
-int wfx_hif_stop_scan(struct wfx_vif *wvif);
-int wfx_hif_configuration(struct wfx_dev *wdev, const u8 *conf, size_t len);
-int wfx_hif_shutdown(struct wfx_dev *wdev);
-
-#endif
diff --git a/drivers/staging/wfx/hif_tx_mib.c b/drivers/staging/wfx/hif_tx_mib.c
deleted file mode 100644
index df1bcb1e2c02..000000000000
--- a/drivers/staging/wfx/hif_tx_mib.c
+++ /dev/null
@@ -1,307 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Implementation of the host-to-chip MIBs of the hardware API.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- * Copyright (C) 2010, ST-Ericsson SA
- */
-
-#include <linux/etherdevice.h>
-
-#include "wfx.h"
-#include "hif_tx.h"
-#include "hif_tx_mib.h"
-#include "hif_api_mib.h"
-
-int wfx_hif_set_output_power(struct wfx_vif *wvif, int val)
-{
-	struct wfx_hif_mib_current_tx_power_level arg = {
-		.power_level = cpu_to_le32(val * 10),
-	};
-
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_CURRENT_TX_POWER_LEVEL,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_set_beacon_wakeup_period(struct wfx_vif *wvif,
-				     unsigned int dtim_interval, unsigned int listen_interval)
-{
-	struct wfx_hif_mib_beacon_wake_up_period arg = {
-		.wakeup_period_min = dtim_interval,
-		.receive_dtim = 0,
-		.wakeup_period_max = listen_interval,
-	};
-
-	if (dtim_interval > 0xFF || listen_interval > 0xFFFF)
-		return -EINVAL;
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_BEACON_WAKEUP_PERIOD,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_set_rcpi_rssi_threshold(struct wfx_vif *wvif, int rssi_thold, int rssi_hyst)
-{
-	struct wfx_hif_mib_rcpi_rssi_threshold arg = {
-		.rolling_average_count = 8,
-		.detection = 1,
-	};
-
-	if (!rssi_thold && !rssi_hyst) {
-		arg.upperthresh = 1;
-		arg.lowerthresh = 1;
-	} else {
-		arg.upper_threshold = rssi_thold + rssi_hyst;
-		arg.upper_threshold = (arg.upper_threshold + 110) * 2;
-		arg.lower_threshold = rssi_thold;
-		arg.lower_threshold = (arg.lower_threshold + 110) * 2;
-	}
-
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_RCPI_RSSI_THRESHOLD,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_get_counters_table(struct wfx_dev *wdev, int vif_id,
-			       struct wfx_hif_mib_extended_count_table *arg)
-{
-	if (wfx_api_older_than(wdev, 1, 3)) {
-		/* extended_count_table is wider than count_table */
-		memset(arg, 0xFF, sizeof(*arg));
-		return wfx_hif_read_mib(wdev, vif_id, HIF_MIB_ID_COUNTERS_TABLE,
-				    arg, sizeof(struct wfx_hif_mib_count_table));
-	} else {
-		return wfx_hif_read_mib(wdev, vif_id, HIF_MIB_ID_EXTENDED_COUNTERS_TABLE,
-					arg, sizeof(struct wfx_hif_mib_extended_count_table));
-	}
-}
-
-int wfx_hif_set_macaddr(struct wfx_vif *wvif, u8 *mac)
-{
-	struct wfx_hif_mib_mac_address arg = { };
-
-	if (mac)
-		ether_addr_copy(arg.mac_addr, mac);
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_DOT11_MAC_ADDRESS,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_set_rx_filter(struct wfx_vif *wvif, bool filter_bssid, bool filter_prbreq)
-{
-	struct wfx_hif_mib_rx_filter arg = { };
-
-	if (filter_bssid)
-		arg.bssid_filter = 1;
-	if (!filter_prbreq)
-		arg.fwd_probe_req = 1;
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_RX_FILTER, &arg, sizeof(arg));
-}
-
-int wfx_hif_set_beacon_filter_table(struct wfx_vif *wvif, int tbl_len,
-				    const struct wfx_hif_ie_table_entry *tbl)
-{
-	int ret;
-	struct wfx_hif_mib_bcn_filter_table *arg;
-	int buf_len = struct_size(arg, ie_table, tbl_len);
-
-	arg = kzalloc(buf_len, GFP_KERNEL);
-	if (!arg)
-		return -ENOMEM;
-	arg->num_of_info_elmts = cpu_to_le32(tbl_len);
-	memcpy(arg->ie_table, tbl, flex_array_size(arg, ie_table, tbl_len));
-	ret = wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_BEACON_FILTER_TABLE,
-				arg, buf_len);
-	kfree(arg);
-	return ret;
-}
-
-int wfx_hif_beacon_filter_control(struct wfx_vif *wvif, int enable, int beacon_count)
-{
-	struct wfx_hif_mib_bcn_filter_enable arg = {
-		.enable = cpu_to_le32(enable),
-		.bcn_count = cpu_to_le32(beacon_count),
-	};
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_BEACON_FILTER_ENABLE,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_set_operational_mode(struct wfx_dev *wdev, enum wfx_hif_op_power_mode mode)
-{
-	struct wfx_hif_mib_gl_operational_power_mode arg = {
-		.power_mode = mode,
-		.wup_ind_activation = 1,
-	};
-
-	return wfx_hif_write_mib(wdev, -1, HIF_MIB_ID_GL_OPERATIONAL_POWER_MODE,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_set_template_frame(struct wfx_vif *wvif, struct sk_buff *skb,
-			       u8 frame_type, int init_rate)
-{
-	struct wfx_hif_mib_template_frame *arg;
-
-	WARN(skb->len > HIF_API_MAX_TEMPLATE_FRAME_SIZE, "frame is too big");
-	skb_push(skb, 4);
-	arg = (struct wfx_hif_mib_template_frame *)skb->data;
-	skb_pull(skb, 4);
-	arg->init_rate = init_rate;
-	arg->frame_type = frame_type;
-	arg->frame_length = cpu_to_le16(skb->len);
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_TEMPLATE_FRAME,
-				 arg, sizeof(*arg) + skb->len);
-}
-
-int wfx_hif_set_mfp(struct wfx_vif *wvif, bool capable, bool required)
-{
-	struct wfx_hif_mib_protected_mgmt_policy arg = { };
-
-	WARN(required && !capable, "incoherent arguments");
-	if (capable) {
-		arg.pmf_enable = 1;
-		arg.host_enc_auth_frames = 1;
-	}
-	if (!required)
-		arg.unpmf_allowed = 1;
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_PROTECTED_MGMT_POLICY,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_set_block_ack_policy(struct wfx_vif *wvif, u8 tx_tid_policy, u8 rx_tid_policy)
-{
-	struct wfx_hif_mib_block_ack_policy arg = {
-		.block_ack_tx_tid_policy = tx_tid_policy,
-		.block_ack_rx_tid_policy = rx_tid_policy,
-	};
-
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_BLOCK_ACK_POLICY,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_set_association_mode(struct wfx_vif *wvif, int ampdu_density,
-				 bool greenfield, bool short_preamble)
-{
-	struct wfx_hif_mib_set_association_mode arg = {
-		.preambtype_use = 1,
-		.mode = 1,
-		.spacing = 1,
-		.short_preamble = short_preamble,
-		.greenfield = greenfield,
-		.mpdu_start_spacing = ampdu_density,
-	};
-
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_SET_ASSOCIATION_MODE,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_set_tx_rate_retry_policy(struct wfx_vif *wvif, int policy_index, u8 *rates)
-{
-	struct wfx_hif_mib_set_tx_rate_retry_policy *arg;
-	size_t size = struct_size(arg, tx_rate_retry_policy, 1);
-	int ret;
-
-	arg = kzalloc(size, GFP_KERNEL);
-	if (!arg)
-		return -ENOMEM;
-	arg->num_tx_rate_policies = 1;
-	arg->tx_rate_retry_policy[0].policy_index = policy_index;
-	arg->tx_rate_retry_policy[0].short_retry_count = 255;
-	arg->tx_rate_retry_policy[0].long_retry_count = 255;
-	arg->tx_rate_retry_policy[0].first_rate_sel = 1;
-	arg->tx_rate_retry_policy[0].terminate = 1;
-	arg->tx_rate_retry_policy[0].count_init = 1;
-	memcpy(&arg->tx_rate_retry_policy[0].rates, rates,
-	       sizeof(arg->tx_rate_retry_policy[0].rates));
-	ret = wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_SET_TX_RATE_RETRY_POLICY,
-				arg, size);
-	kfree(arg);
-	return ret;
-}
-
-int wfx_hif_keep_alive_period(struct wfx_vif *wvif, int period)
-{
-	struct wfx_hif_mib_keep_alive_period arg = {
-		.keep_alive_period = cpu_to_le16(period),
-	};
-
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_KEEP_ALIVE_PERIOD,
-				 &arg, sizeof(arg));
-};
-
-int wfx_hif_set_arp_ipv4_filter(struct wfx_vif *wvif, int idx, __be32 *addr)
-{
-	struct wfx_hif_mib_arp_ip_addr_table arg = {
-		.condition_idx = idx,
-		.arp_enable = HIF_ARP_NS_FILTERING_DISABLE,
-	};
-
-	if (addr) {
-		/* Caution: type of addr is __be32 */
-		memcpy(arg.ipv4_address, addr, sizeof(arg.ipv4_address));
-		arg.arp_enable = HIF_ARP_NS_FILTERING_ENABLE;
-	}
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_ARP_IP_ADDRESSES_TABLE,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_use_multi_tx_conf(struct wfx_dev *wdev, bool enable)
-{
-	struct wfx_hif_mib_gl_set_multi_msg arg = {
-		.enable_multi_tx_conf = enable,
-	};
-
-	return wfx_hif_write_mib(wdev, -1, HIF_MIB_ID_GL_SET_MULTI_MSG, &arg, sizeof(arg));
-}
-
-int wfx_hif_set_uapsd_info(struct wfx_vif *wvif, unsigned long val)
-{
-	struct wfx_hif_mib_set_uapsd_information arg = { };
-
-	if (val & BIT(IEEE80211_AC_VO))
-		arg.trig_voice = 1;
-	if (val & BIT(IEEE80211_AC_VI))
-		arg.trig_video = 1;
-	if (val & BIT(IEEE80211_AC_BE))
-		arg.trig_be = 1;
-	if (val & BIT(IEEE80211_AC_BK))
-		arg.trig_bckgrnd = 1;
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_SET_UAPSD_INFORMATION,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_erp_use_protection(struct wfx_vif *wvif, bool enable)
-{
-	struct wfx_hif_mib_non_erp_protection arg = {
-		.use_cts_to_self = enable,
-	};
-
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_NON_ERP_PROTECTION,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_slot_time(struct wfx_vif *wvif, int val)
-{
-	struct wfx_hif_mib_slot_time arg = {
-		.slot_time = cpu_to_le32(val),
-	};
-
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_SLOT_TIME, &arg, sizeof(arg));
-}
-
-int wfx_hif_wep_default_key_id(struct wfx_vif *wvif, int val)
-{
-	struct wfx_hif_mib_wep_default_key_id arg = {
-		.wep_default_key_id = val,
-	};
-
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_DOT11_WEP_DEFAULT_KEY_ID,
-				 &arg, sizeof(arg));
-}
-
-int wfx_hif_rts_threshold(struct wfx_vif *wvif, int val)
-{
-	struct wfx_hif_mib_dot11_rts_threshold arg = {
-		.threshold = cpu_to_le32(val >= 0 ? val : 0xFFFF),
-	};
-
-	return wfx_hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_DOT11_RTS_THRESHOLD,
-				 &arg, sizeof(arg));
-}
diff --git a/drivers/staging/wfx/hif_tx_mib.h b/drivers/staging/wfx/hif_tx_mib.h
deleted file mode 100644
index bcd4ef6a8497..000000000000
--- a/drivers/staging/wfx/hif_tx_mib.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Implementation of the host-to-chip MIBs of the hardware API.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- * Copyright (C) 2010, ST-Ericsson SA
- */
-#ifndef WFX_HIF_TX_MIB_H
-#define WFX_HIF_TX_MIB_H
-
-#include <linux/types.h>
-
-struct sk_buff;
-struct wfx_vif;
-struct wfx_dev;
-struct wfx_hif_ie_table_entry;
-struct wfx_hif_mib_extended_count_table;
-
-int wfx_hif_set_output_power(struct wfx_vif *wvif, int val);
-int wfx_hif_set_beacon_wakeup_period(struct wfx_vif *wvif,
-				     unsigned int dtim_interval, unsigned int listen_interval);
-int wfx_hif_set_rcpi_rssi_threshold(struct wfx_vif *wvif, int rssi_thold, int rssi_hyst);
-int wfx_hif_get_counters_table(struct wfx_dev *wdev, int vif_id,
-			       struct wfx_hif_mib_extended_count_table *arg);
-int wfx_hif_set_macaddr(struct wfx_vif *wvif, u8 *mac);
-int wfx_hif_set_rx_filter(struct wfx_vif *wvif, bool filter_bssid, bool fwd_probe_req);
-int wfx_hif_set_beacon_filter_table(struct wfx_vif *wvif, int tbl_len,
-				    const struct wfx_hif_ie_table_entry *tbl);
-int wfx_hif_beacon_filter_control(struct wfx_vif *wvif, int enable, int beacon_count);
-int wfx_hif_set_operational_mode(struct wfx_dev *wdev, enum wfx_hif_op_power_mode mode);
-int wfx_hif_set_template_frame(struct wfx_vif *wvif, struct sk_buff *skb,
-			       u8 frame_type, int init_rate);
-int wfx_hif_set_mfp(struct wfx_vif *wvif, bool capable, bool required);
-int wfx_hif_set_block_ack_policy(struct wfx_vif *wvif, u8 tx_tid_policy, u8 rx_tid_policy);
-int wfx_hif_set_association_mode(struct wfx_vif *wvif, int ampdu_density,
-				 bool greenfield, bool short_preamble);
-int wfx_hif_set_tx_rate_retry_policy(struct wfx_vif *wvif, int policy_index, u8 *rates);
-int wfx_hif_keep_alive_period(struct wfx_vif *wvif, int period);
-int wfx_hif_set_arp_ipv4_filter(struct wfx_vif *wvif, int idx, __be32 *addr);
-int wfx_hif_use_multi_tx_conf(struct wfx_dev *wdev, bool enable);
-int wfx_hif_set_uapsd_info(struct wfx_vif *wvif, unsigned long val);
-int wfx_hif_erp_use_protection(struct wfx_vif *wvif, bool enable);
-int wfx_hif_slot_time(struct wfx_vif *wvif, int val);
-int wfx_hif_wep_default_key_id(struct wfx_vif *wvif, int val);
-int wfx_hif_rts_threshold(struct wfx_vif *wvif, int val);
-
-#endif
diff --git a/drivers/staging/wfx/hwio.c b/drivers/staging/wfx/hwio.c
deleted file mode 100644
index 3f9750b470be..000000000000
--- a/drivers/staging/wfx/hwio.c
+++ /dev/null
@@ -1,332 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Low-level I/O functions.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/align.h>
-
-#include "hwio.h"
-#include "wfx.h"
-#include "bus.h"
-#include "traces.h"
-
-#define WFX_HIF_BUFFER_SIZE 0x2000
-
-static int wfx_read32(struct wfx_dev *wdev, int reg, u32 *val)
-{
-	int ret;
-	__le32 *tmp = kmalloc(sizeof(u32), GFP_KERNEL);
-
-	*val = ~0; /* Never return undefined value */
-	if (!tmp)
-		return -ENOMEM;
-	ret = wdev->hwbus_ops->copy_from_io(wdev->hwbus_priv, reg, tmp, sizeof(u32));
-	if (ret >= 0)
-		*val = le32_to_cpu(*tmp);
-	kfree(tmp);
-	if (ret)
-		dev_err(wdev->dev, "%s: bus communication error: %d\n", __func__, ret);
-	return ret;
-}
-
-static int wfx_write32(struct wfx_dev *wdev, int reg, u32 val)
-{
-	int ret;
-	__le32 *tmp = kmalloc(sizeof(u32), GFP_KERNEL);
-
-	if (!tmp)
-		return -ENOMEM;
-	*tmp = cpu_to_le32(val);
-	ret = wdev->hwbus_ops->copy_to_io(wdev->hwbus_priv, reg, tmp, sizeof(u32));
-	kfree(tmp);
-	if (ret)
-		dev_err(wdev->dev, "%s: bus communication error: %d\n", __func__, ret);
-	return ret;
-}
-
-static int wfx_read32_locked(struct wfx_dev *wdev, int reg, u32 *val)
-{
-	int ret;
-
-	wdev->hwbus_ops->lock(wdev->hwbus_priv);
-	ret = wfx_read32(wdev, reg, val);
-	_trace_io_read32(reg, *val);
-	wdev->hwbus_ops->unlock(wdev->hwbus_priv);
-	return ret;
-}
-
-static int wfx_write32_locked(struct wfx_dev *wdev, int reg, u32 val)
-{
-	int ret;
-
-	wdev->hwbus_ops->lock(wdev->hwbus_priv);
-	ret = wfx_write32(wdev, reg, val);
-	_trace_io_write32(reg, val);
-	wdev->hwbus_ops->unlock(wdev->hwbus_priv);
-	return ret;
-}
-
-static int wfx_write32_bits_locked(struct wfx_dev *wdev, int reg, u32 mask, u32 val)
-{
-	int ret;
-	u32 val_r, val_w;
-
-	WARN_ON(~mask & val);
-	val &= mask;
-	wdev->hwbus_ops->lock(wdev->hwbus_priv);
-	ret = wfx_read32(wdev, reg, &val_r);
-	_trace_io_read32(reg, val_r);
-	if (ret < 0)
-		goto err;
-	val_w = (val_r & ~mask) | val;
-	if (val_w != val_r) {
-		ret = wfx_write32(wdev, reg, val_w);
-		_trace_io_write32(reg, val_w);
-	}
-err:
-	wdev->hwbus_ops->unlock(wdev->hwbus_priv);
-	return ret;
-}
-
-static int wfx_indirect_read(struct wfx_dev *wdev, int reg, u32 addr, void *buf, size_t len)
-{
-	int ret;
-	int i;
-	u32 cfg;
-	u32 prefetch;
-
-	WARN_ON(len >= WFX_HIF_BUFFER_SIZE);
-	WARN_ON(reg != WFX_REG_AHB_DPORT && reg != WFX_REG_SRAM_DPORT);
-
-	if (reg == WFX_REG_AHB_DPORT)
-		prefetch = CFG_PREFETCH_AHB;
-	else if (reg == WFX_REG_SRAM_DPORT)
-		prefetch = CFG_PREFETCH_SRAM;
-	else
-		return -ENODEV;
-
-	ret = wfx_write32(wdev, WFX_REG_BASE_ADDR, addr);
-	if (ret < 0)
-		goto err;
-
-	ret = wfx_read32(wdev, WFX_REG_CONFIG, &cfg);
-	if (ret < 0)
-		goto err;
-
-	ret = wfx_write32(wdev, WFX_REG_CONFIG, cfg | prefetch);
-	if (ret < 0)
-		goto err;
-
-	for (i = 0; i < 20; i++) {
-		ret = wfx_read32(wdev, WFX_REG_CONFIG, &cfg);
-		if (ret < 0)
-			goto err;
-		if (!(cfg & prefetch))
-			break;
-		usleep_range(200, 250);
-	}
-	if (i == 20) {
-		ret = -ETIMEDOUT;
-		goto err;
-	}
-
-	ret = wdev->hwbus_ops->copy_from_io(wdev->hwbus_priv, reg, buf, len);
-
-err:
-	if (ret < 0)
-		memset(buf, 0xFF, len); /* Never return undefined value */
-	return ret;
-}
-
-static int wfx_indirect_write(struct wfx_dev *wdev, int reg, u32 addr,
-			      const void *buf, size_t len)
-{
-	int ret;
-
-	WARN_ON(len >= WFX_HIF_BUFFER_SIZE);
-	WARN_ON(reg != WFX_REG_AHB_DPORT && reg != WFX_REG_SRAM_DPORT);
-	ret = wfx_write32(wdev, WFX_REG_BASE_ADDR, addr);
-	if (ret < 0)
-		return ret;
-
-	return wdev->hwbus_ops->copy_to_io(wdev->hwbus_priv, reg, buf, len);
-}
-
-static int wfx_indirect_read_locked(struct wfx_dev *wdev, int reg, u32 addr,
-				    void *buf, size_t len)
-{
-	int ret;
-
-	wdev->hwbus_ops->lock(wdev->hwbus_priv);
-	ret = wfx_indirect_read(wdev, reg, addr, buf, len);
-	_trace_io_ind_read(reg, addr, buf, len);
-	wdev->hwbus_ops->unlock(wdev->hwbus_priv);
-	return ret;
-}
-
-static int wfx_indirect_write_locked(struct wfx_dev *wdev, int reg, u32 addr,
-				     const void *buf, size_t len)
-{
-	int ret;
-
-	wdev->hwbus_ops->lock(wdev->hwbus_priv);
-	ret = wfx_indirect_write(wdev, reg, addr, buf, len);
-	_trace_io_ind_write(reg, addr, buf, len);
-	wdev->hwbus_ops->unlock(wdev->hwbus_priv);
-	return ret;
-}
-
-static int wfx_indirect_read32_locked(struct wfx_dev *wdev, int reg, u32 addr, u32 *val)
-{
-	int ret;
-	__le32 *tmp = kmalloc(sizeof(u32), GFP_KERNEL);
-
-	if (!tmp)
-		return -ENOMEM;
-	wdev->hwbus_ops->lock(wdev->hwbus_priv);
-	ret = wfx_indirect_read(wdev, reg, addr, tmp, sizeof(u32));
-	*val = le32_to_cpu(*tmp);
-	_trace_io_ind_read32(reg, addr, *val);
-	wdev->hwbus_ops->unlock(wdev->hwbus_priv);
-	kfree(tmp);
-	return ret;
-}
-
-static int wfx_indirect_write32_locked(struct wfx_dev *wdev, int reg, u32 addr, u32 val)
-{
-	int ret;
-	__le32 *tmp = kmalloc(sizeof(u32), GFP_KERNEL);
-
-	if (!tmp)
-		return -ENOMEM;
-	*tmp = cpu_to_le32(val);
-	wdev->hwbus_ops->lock(wdev->hwbus_priv);
-	ret = wfx_indirect_write(wdev, reg, addr, tmp, sizeof(u32));
-	_trace_io_ind_write32(reg, addr, val);
-	wdev->hwbus_ops->unlock(wdev->hwbus_priv);
-	kfree(tmp);
-	return ret;
-}
-
-int wfx_data_read(struct wfx_dev *wdev, void *buf, size_t len)
-{
-	int ret;
-
-	WARN(!IS_ALIGNED((uintptr_t)buf, 4), "unaligned buffer");
-	wdev->hwbus_ops->lock(wdev->hwbus_priv);
-	ret = wdev->hwbus_ops->copy_from_io(wdev->hwbus_priv, WFX_REG_IN_OUT_QUEUE, buf, len);
-	_trace_io_read(WFX_REG_IN_OUT_QUEUE, buf, len);
-	wdev->hwbus_ops->unlock(wdev->hwbus_priv);
-	if (ret)
-		dev_err(wdev->dev, "%s: bus communication error: %d\n", __func__, ret);
-	return ret;
-}
-
-int wfx_data_write(struct wfx_dev *wdev, const void *buf, size_t len)
-{
-	int ret;
-
-	WARN(!IS_ALIGNED((uintptr_t)buf, 4), "unaligned buffer");
-	wdev->hwbus_ops->lock(wdev->hwbus_priv);
-	ret = wdev->hwbus_ops->copy_to_io(wdev->hwbus_priv, WFX_REG_IN_OUT_QUEUE, buf, len);
-	_trace_io_write(WFX_REG_IN_OUT_QUEUE, buf, len);
-	wdev->hwbus_ops->unlock(wdev->hwbus_priv);
-	if (ret)
-		dev_err(wdev->dev, "%s: bus communication error: %d\n", __func__, ret);
-	return ret;
-}
-
-int wfx_sram_buf_read(struct wfx_dev *wdev, u32 addr, void *buf, size_t len)
-{
-	return wfx_indirect_read_locked(wdev, WFX_REG_SRAM_DPORT, addr, buf, len);
-}
-
-int wfx_ahb_buf_read(struct wfx_dev *wdev, u32 addr, void *buf, size_t len)
-{
-	return wfx_indirect_read_locked(wdev, WFX_REG_AHB_DPORT, addr, buf, len);
-}
-
-int wfx_sram_buf_write(struct wfx_dev *wdev, u32 addr, const void *buf, size_t len)
-{
-	return wfx_indirect_write_locked(wdev, WFX_REG_SRAM_DPORT, addr, buf, len);
-}
-
-int wfx_ahb_buf_write(struct wfx_dev *wdev, u32 addr, const void *buf, size_t len)
-{
-	return wfx_indirect_write_locked(wdev, WFX_REG_AHB_DPORT, addr, buf, len);
-}
-
-int wfx_sram_reg_read(struct wfx_dev *wdev, u32 addr, u32 *val)
-{
-	return wfx_indirect_read32_locked(wdev, WFX_REG_SRAM_DPORT, addr, val);
-}
-
-int wfx_ahb_reg_read(struct wfx_dev *wdev, u32 addr, u32 *val)
-{
-	return wfx_indirect_read32_locked(wdev, WFX_REG_AHB_DPORT, addr, val);
-}
-
-int wfx_sram_reg_write(struct wfx_dev *wdev, u32 addr, u32 val)
-{
-	return wfx_indirect_write32_locked(wdev, WFX_REG_SRAM_DPORT, addr, val);
-}
-
-int wfx_ahb_reg_write(struct wfx_dev *wdev, u32 addr, u32 val)
-{
-	return wfx_indirect_write32_locked(wdev, WFX_REG_AHB_DPORT, addr, val);
-}
-
-int wfx_config_reg_read(struct wfx_dev *wdev, u32 *val)
-{
-	return wfx_read32_locked(wdev, WFX_REG_CONFIG, val);
-}
-
-int wfx_config_reg_write(struct wfx_dev *wdev, u32 val)
-{
-	return wfx_write32_locked(wdev, WFX_REG_CONFIG, val);
-}
-
-int wfx_config_reg_write_bits(struct wfx_dev *wdev, u32 mask, u32 val)
-{
-	return wfx_write32_bits_locked(wdev, WFX_REG_CONFIG, mask, val);
-}
-
-int wfx_control_reg_read(struct wfx_dev *wdev, u32 *val)
-{
-	return wfx_read32_locked(wdev, WFX_REG_CONTROL, val);
-}
-
-int wfx_control_reg_write(struct wfx_dev *wdev, u32 val)
-{
-	return wfx_write32_locked(wdev, WFX_REG_CONTROL, val);
-}
-
-int wfx_control_reg_write_bits(struct wfx_dev *wdev, u32 mask, u32 val)
-{
-	return wfx_write32_bits_locked(wdev, WFX_REG_CONTROL, mask, val);
-}
-
-int wfx_igpr_reg_read(struct wfx_dev *wdev, int index, u32 *val)
-{
-	int ret;
-
-	*val = ~0; /* Never return undefined value */
-	ret = wfx_write32_locked(wdev, WFX_REG_SET_GEN_R_W, IGPR_RW | index << 24);
-	if (ret)
-		return ret;
-	ret = wfx_read32_locked(wdev, WFX_REG_SET_GEN_R_W, val);
-	if (ret)
-		return ret;
-	*val &= IGPR_VALUE;
-	return ret;
-}
-
-int wfx_igpr_reg_write(struct wfx_dev *wdev, int index, u32 val)
-{
-	return wfx_write32_locked(wdev, WFX_REG_SET_GEN_R_W, index << 24 | val);
-}
diff --git a/drivers/staging/wfx/hwio.h b/drivers/staging/wfx/hwio.h
deleted file mode 100644
index c6e7b065b7ff..000000000000
--- a/drivers/staging/wfx/hwio.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Low-level I/O functions.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#ifndef WFX_HWIO_H
-#define WFX_HWIO_H
-
-#include <linux/types.h>
-
-struct wfx_dev;
-
-/* Caution: in the functions below, 'buf' will used with a DMA. So, it must be kmalloc'd (do not use
- * stack allocated buffers). In doubt, enable CONFIG_DEBUG_SG to detect badly located buffer.
- */
-int wfx_data_read(struct wfx_dev *wdev, void *buf, size_t buf_len);
-int wfx_data_write(struct wfx_dev *wdev, const void *buf, size_t buf_len);
-
-int wfx_sram_buf_read(struct wfx_dev *wdev, u32 addr, void *buf, size_t len);
-int wfx_sram_buf_write(struct wfx_dev *wdev, u32 addr, const void *buf, size_t len);
-
-int wfx_ahb_buf_read(struct wfx_dev *wdev, u32 addr, void *buf, size_t len);
-int wfx_ahb_buf_write(struct wfx_dev *wdev, u32 addr, const void *buf, size_t len);
-
-int wfx_sram_reg_read(struct wfx_dev *wdev, u32 addr, u32 *val);
-int wfx_sram_reg_write(struct wfx_dev *wdev, u32 addr, u32 val);
-
-int wfx_ahb_reg_read(struct wfx_dev *wdev, u32 addr, u32 *val);
-int wfx_ahb_reg_write(struct wfx_dev *wdev, u32 addr, u32 val);
-
-#define CFG_ERR_SPI_FRAME          0x00000001 /* only with SPI */
-#define CFG_ERR_SDIO_BUF_MISMATCH  0x00000001 /* only with SDIO */
-#define CFG_ERR_BUF_UNDERRUN       0x00000002
-#define CFG_ERR_DATA_IN_TOO_LARGE  0x00000004
-#define CFG_ERR_HOST_NO_OUT_QUEUE  0x00000008
-#define CFG_ERR_BUF_OVERRUN        0x00000010
-#define CFG_ERR_DATA_OUT_TOO_LARGE 0x00000020
-#define CFG_ERR_HOST_NO_IN_QUEUE   0x00000040
-#define CFG_ERR_HOST_CRC_MISS      0x00000080 /* only with SDIO */
-#define CFG_SPI_IGNORE_CS          0x00000080 /* only with SPI */
-#define CFG_BYTE_ORDER_MASK        0x00000300 /* only writable with SPI */
-#define     CFG_BYTE_ORDER_BADC    0x00000000
-#define     CFG_BYTE_ORDER_DCBA    0x00000100
-#define     CFG_BYTE_ORDER_ABCD    0x00000200 /* SDIO always use this value */
-#define CFG_DIRECT_ACCESS_MODE     0x00000400
-#define CFG_PREFETCH_AHB           0x00000800
-#define CFG_DISABLE_CPU_CLK        0x00001000
-#define CFG_PREFETCH_SRAM          0x00002000
-#define CFG_CPU_RESET              0x00004000
-#define CFG_SDIO_DISABLE_IRQ       0x00008000 /* only with SDIO */
-#define CFG_IRQ_ENABLE_DATA        0x00010000
-#define CFG_IRQ_ENABLE_WRDY        0x00020000
-#define CFG_CLK_RISE_EDGE          0x00040000
-#define CFG_SDIO_DISABLE_CRC_CHK   0x00080000 /* only with SDIO */
-#define CFG_RESERVED               0x00F00000
-#define CFG_DEVICE_ID_MAJOR        0x07000000
-#define CFG_DEVICE_ID_RESERVED     0x78000000
-#define CFG_DEVICE_ID_TYPE         0x80000000
-int wfx_config_reg_read(struct wfx_dev *wdev, u32 *val);
-int wfx_config_reg_write(struct wfx_dev *wdev, u32 val);
-int wfx_config_reg_write_bits(struct wfx_dev *wdev, u32 mask, u32 val);
-
-#define CTRL_NEXT_LEN_MASK   0x00000FFF
-#define CTRL_WLAN_WAKEUP     0x00001000
-#define CTRL_WLAN_READY      0x00002000
-int wfx_control_reg_read(struct wfx_dev *wdev, u32 *val);
-int wfx_control_reg_write(struct wfx_dev *wdev, u32 val);
-int wfx_control_reg_write_bits(struct wfx_dev *wdev, u32 mask, u32 val);
-
-#define IGPR_RW          0x80000000
-#define IGPR_INDEX       0x7F000000
-#define IGPR_VALUE       0x00FFFFFF
-int wfx_igpr_reg_read(struct wfx_dev *wdev, int index, u32 *val);
-int wfx_igpr_reg_write(struct wfx_dev *wdev, int index, u32 val);
-
-#endif
diff --git a/drivers/staging/wfx/key.c b/drivers/staging/wfx/key.c
deleted file mode 100644
index 8f23e8d42bd4..000000000000
--- a/drivers/staging/wfx/key.c
+++ /dev/null
@@ -1,227 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Key management related functions.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/etherdevice.h>
-#include <net/mac80211.h>
-
-#include "key.h"
-#include "wfx.h"
-#include "hif_tx_mib.h"
-
-static int wfx_alloc_key(struct wfx_dev *wdev)
-{
-	int idx;
-
-	idx = ffs(~wdev->key_map) - 1;
-	if (idx < 0 || idx >= MAX_KEY_ENTRIES)
-		return -1;
-
-	wdev->key_map |= BIT(idx);
-	return idx;
-}
-
-static void wfx_free_key(struct wfx_dev *wdev, int idx)
-{
-	WARN(!(wdev->key_map & BIT(idx)), "inconsistent key allocation");
-	wdev->key_map &= ~BIT(idx);
-}
-
-static u8 fill_wep_pair(struct wfx_hif_wep_pairwise_key *msg,
-			struct ieee80211_key_conf *key, u8 *peer_addr)
-{
-	WARN(key->keylen > sizeof(msg->key_data), "inconsistent data");
-	msg->key_length = key->keylen;
-	memcpy(msg->key_data, key->key, key->keylen);
-	ether_addr_copy(msg->peer_address, peer_addr);
-	return HIF_KEY_TYPE_WEP_PAIRWISE;
-}
-
-static u8 fill_wep_group(struct wfx_hif_wep_group_key *msg,
-			 struct ieee80211_key_conf *key)
-{
-	WARN(key->keylen > sizeof(msg->key_data), "inconsistent data");
-	msg->key_id = key->keyidx;
-	msg->key_length = key->keylen;
-	memcpy(msg->key_data, key->key, key->keylen);
-	return HIF_KEY_TYPE_WEP_DEFAULT;
-}
-
-static u8 fill_tkip_pair(struct wfx_hif_tkip_pairwise_key *msg,
-			 struct ieee80211_key_conf *key, u8 *peer_addr)
-{
-	u8 *keybuf = key->key;
-
-	WARN(key->keylen != sizeof(msg->tkip_key_data) + sizeof(msg->tx_mic_key) +
-			    sizeof(msg->rx_mic_key), "inconsistent data");
-	memcpy(msg->tkip_key_data, keybuf, sizeof(msg->tkip_key_data));
-	keybuf += sizeof(msg->tkip_key_data);
-	memcpy(msg->tx_mic_key, keybuf, sizeof(msg->tx_mic_key));
-	keybuf += sizeof(msg->tx_mic_key);
-	memcpy(msg->rx_mic_key, keybuf, sizeof(msg->rx_mic_key));
-	ether_addr_copy(msg->peer_address, peer_addr);
-	return HIF_KEY_TYPE_TKIP_PAIRWISE;
-}
-
-static u8 fill_tkip_group(struct wfx_hif_tkip_group_key *msg, struct ieee80211_key_conf *key,
-			  struct ieee80211_key_seq *seq, enum nl80211_iftype iftype)
-{
-	u8 *keybuf = key->key;
-
-	WARN(key->keylen != sizeof(msg->tkip_key_data) + 2 * sizeof(msg->rx_mic_key),
-	     "inconsistent data");
-	msg->key_id = key->keyidx;
-	memcpy(msg->rx_sequence_counter, &seq->tkip.iv16, sizeof(seq->tkip.iv16));
-	memcpy(msg->rx_sequence_counter + sizeof(u16), &seq->tkip.iv32, sizeof(seq->tkip.iv32));
-	memcpy(msg->tkip_key_data, keybuf, sizeof(msg->tkip_key_data));
-	keybuf += sizeof(msg->tkip_key_data);
-	if (iftype == NL80211_IFTYPE_AP)
-		/* Use Tx MIC Key */
-		memcpy(msg->rx_mic_key, keybuf + 0, sizeof(msg->rx_mic_key));
-	else
-		/* Use Rx MIC Key */
-		memcpy(msg->rx_mic_key, keybuf + 8, sizeof(msg->rx_mic_key));
-	return HIF_KEY_TYPE_TKIP_GROUP;
-}
-
-static u8 fill_ccmp_pair(struct wfx_hif_aes_pairwise_key *msg,
-			 struct ieee80211_key_conf *key, u8 *peer_addr)
-{
-	WARN(key->keylen != sizeof(msg->aes_key_data), "inconsistent data");
-	ether_addr_copy(msg->peer_address, peer_addr);
-	memcpy(msg->aes_key_data, key->key, key->keylen);
-	return HIF_KEY_TYPE_AES_PAIRWISE;
-}
-
-static u8 fill_ccmp_group(struct wfx_hif_aes_group_key *msg,
-			  struct ieee80211_key_conf *key, struct ieee80211_key_seq *seq)
-{
-	WARN(key->keylen != sizeof(msg->aes_key_data), "inconsistent data");
-	memcpy(msg->aes_key_data, key->key, key->keylen);
-	memcpy(msg->rx_sequence_counter, seq->ccmp.pn, sizeof(seq->ccmp.pn));
-	memreverse(msg->rx_sequence_counter, sizeof(seq->ccmp.pn));
-	msg->key_id = key->keyidx;
-	return HIF_KEY_TYPE_AES_GROUP;
-}
-
-static u8 fill_sms4_pair(struct wfx_hif_wapi_pairwise_key *msg,
-			 struct ieee80211_key_conf *key, u8 *peer_addr)
-{
-	u8 *keybuf = key->key;
-
-	WARN(key->keylen != sizeof(msg->wapi_key_data) + sizeof(msg->mic_key_data),
-	     "inconsistent data");
-	ether_addr_copy(msg->peer_address, peer_addr);
-	memcpy(msg->wapi_key_data, keybuf, sizeof(msg->wapi_key_data));
-	keybuf += sizeof(msg->wapi_key_data);
-	memcpy(msg->mic_key_data, keybuf, sizeof(msg->mic_key_data));
-	msg->key_id = key->keyidx;
-	return HIF_KEY_TYPE_WAPI_PAIRWISE;
-}
-
-static u8 fill_sms4_group(struct wfx_hif_wapi_group_key *msg,
-			  struct ieee80211_key_conf *key)
-{
-	u8 *keybuf = key->key;
-
-	WARN(key->keylen != sizeof(msg->wapi_key_data) + sizeof(msg->mic_key_data),
-	     "inconsistent data");
-	memcpy(msg->wapi_key_data, keybuf, sizeof(msg->wapi_key_data));
-	keybuf += sizeof(msg->wapi_key_data);
-	memcpy(msg->mic_key_data, keybuf, sizeof(msg->mic_key_data));
-	msg->key_id = key->keyidx;
-	return HIF_KEY_TYPE_WAPI_GROUP;
-}
-
-static u8 fill_aes_cmac_group(struct wfx_hif_igtk_group_key *msg,
-			      struct ieee80211_key_conf *key, struct ieee80211_key_seq *seq)
-{
-	WARN(key->keylen != sizeof(msg->igtk_key_data), "inconsistent data");
-	memcpy(msg->igtk_key_data, key->key, key->keylen);
-	memcpy(msg->ipn, seq->aes_cmac.pn, sizeof(seq->aes_cmac.pn));
-	memreverse(msg->ipn, sizeof(seq->aes_cmac.pn));
-	msg->key_id = key->keyidx;
-	return HIF_KEY_TYPE_IGTK_GROUP;
-}
-
-static int wfx_add_key(struct wfx_vif *wvif, struct ieee80211_sta *sta,
-		       struct ieee80211_key_conf *key)
-{
-	int ret;
-	struct wfx_hif_req_add_key k = { };
-	struct ieee80211_key_seq seq;
-	struct wfx_dev *wdev = wvif->wdev;
-	int idx = wfx_alloc_key(wvif->wdev);
-	bool pairwise = key->flags & IEEE80211_KEY_FLAG_PAIRWISE;
-
-	WARN(key->flags & IEEE80211_KEY_FLAG_PAIRWISE && !sta, "inconsistent data");
-	ieee80211_get_key_rx_seq(key, 0, &seq);
-	if (idx < 0)
-		return -EINVAL;
-	k.int_id = wvif->id;
-	k.entry_index = idx;
-	if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
-	    key->cipher == WLAN_CIPHER_SUITE_WEP104) {
-		if (pairwise)
-			k.type = fill_wep_pair(&k.key.wep_pairwise_key, key, sta->addr);
-		else
-			k.type = fill_wep_group(&k.key.wep_group_key, key);
-	} else if (key->cipher == WLAN_CIPHER_SUITE_TKIP) {
-		if (pairwise)
-			k.type = fill_tkip_pair(&k.key.tkip_pairwise_key, key, sta->addr);
-		else
-			k.type = fill_tkip_group(&k.key.tkip_group_key, key, &seq,
-						 wvif->vif->type);
-	} else if (key->cipher == WLAN_CIPHER_SUITE_CCMP) {
-		if (pairwise)
-			k.type = fill_ccmp_pair(&k.key.aes_pairwise_key, key, sta->addr);
-		else
-			k.type = fill_ccmp_group(&k.key.aes_group_key, key, &seq);
-	} else if (key->cipher == WLAN_CIPHER_SUITE_SMS4) {
-		if (pairwise)
-			k.type = fill_sms4_pair(&k.key.wapi_pairwise_key, key, sta->addr);
-		else
-			k.type = fill_sms4_group(&k.key.wapi_group_key, key);
-	} else if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
-		k.type = fill_aes_cmac_group(&k.key.igtk_group_key, key, &seq);
-		key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
-	} else {
-		dev_warn(wdev->dev, "unsupported key type %d\n", key->cipher);
-		wfx_free_key(wdev, idx);
-		return -EOPNOTSUPP;
-	}
-	ret = wfx_hif_add_key(wdev, &k);
-	if (ret) {
-		wfx_free_key(wdev, idx);
-		return -EOPNOTSUPP;
-	}
-	key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE | IEEE80211_KEY_FLAG_RESERVE_TAILROOM;
-	key->hw_key_idx = idx;
-	return 0;
-}
-
-static int wfx_remove_key(struct wfx_vif *wvif, struct ieee80211_key_conf *key)
-{
-	WARN(key->hw_key_idx >= MAX_KEY_ENTRIES, "corrupted hw_key_idx");
-	wfx_free_key(wvif->wdev, key->hw_key_idx);
-	return wfx_hif_remove_key(wvif->wdev, key->hw_key_idx);
-}
-
-int wfx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, struct ieee80211_vif *vif,
-		struct ieee80211_sta *sta, struct ieee80211_key_conf *key)
-{
-	int ret = -EOPNOTSUPP;
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-
-	mutex_lock(&wvif->wdev->conf_mutex);
-	if (cmd == SET_KEY)
-		ret = wfx_add_key(wvif, sta, key);
-	if (cmd == DISABLE_KEY)
-		ret = wfx_remove_key(wvif, key);
-	mutex_unlock(&wvif->wdev->conf_mutex);
-	return ret;
-}
-
diff --git a/drivers/staging/wfx/key.h b/drivers/staging/wfx/key.h
deleted file mode 100644
index 2234e36dbbcd..000000000000
--- a/drivers/staging/wfx/key.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Key management related functions.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#ifndef WFX_KEY_H
-#define WFX_KEY_H
-
-#include <net/mac80211.h>
-
-struct wfx_dev;
-struct wfx_vif;
-
-int wfx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, struct ieee80211_vif *vif,
-		struct ieee80211_sta *sta, struct ieee80211_key_conf *key);
-
-#endif
diff --git a/drivers/staging/wfx/main.c b/drivers/staging/wfx/main.c
deleted file mode 100644
index b93b16b900c8..000000000000
--- a/drivers/staging/wfx/main.c
+++ /dev/null
@@ -1,491 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Device probe and register.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- * Copyright (c) 2008, Johannes Berg <johannes@sipsolutions.net>
- * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
- * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
- * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
- * Copyright (c) 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
- */
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_net.h>
-#include <linux/gpio/consumer.h>
-#include <linux/mmc/sdio_func.h>
-#include <linux/spi/spi.h>
-#include <linux/etherdevice.h>
-#include <linux/firmware.h>
-
-#include "main.h"
-#include "wfx.h"
-#include "fwio.h"
-#include "hwio.h"
-#include "bus.h"
-#include "bh.h"
-#include "sta.h"
-#include "key.h"
-#include "scan.h"
-#include "debug.h"
-#include "data_tx.h"
-#include "hif_tx_mib.h"
-#include "hif_api_cmd.h"
-
-#define WFX_PDS_TLV_TYPE 0x4450 // "PD" (Platform Data) in ascii little-endian
-#define WFX_PDS_MAX_CHUNK_SIZE 1500
-
-MODULE_DESCRIPTION("Silicon Labs 802.11 Wireless LAN driver for WF200");
-MODULE_AUTHOR("Jérôme Pouiller <jerome.pouiller@silabs.com>");
-MODULE_LICENSE("GPL");
-
-#define RATETAB_ENT(_rate, _rateid, _flags) { \
-	.bitrate  = (_rate),   \
-	.hw_value = (_rateid), \
-	.flags    = (_flags),  \
-}
-
-static struct ieee80211_rate wfx_rates[] = {
-	RATETAB_ENT(10,  0,  0),
-	RATETAB_ENT(20,  1,  IEEE80211_RATE_SHORT_PREAMBLE),
-	RATETAB_ENT(55,  2,  IEEE80211_RATE_SHORT_PREAMBLE),
-	RATETAB_ENT(110, 3,  IEEE80211_RATE_SHORT_PREAMBLE),
-	RATETAB_ENT(60,  6,  0),
-	RATETAB_ENT(90,  7,  0),
-	RATETAB_ENT(120, 8,  0),
-	RATETAB_ENT(180, 9,  0),
-	RATETAB_ENT(240, 10, 0),
-	RATETAB_ENT(360, 11, 0),
-	RATETAB_ENT(480, 12, 0),
-	RATETAB_ENT(540, 13, 0),
-};
-
-#define CHAN2G(_channel, _freq, _flags) { \
-	.band = NL80211_BAND_2GHZ, \
-	.center_freq = (_freq),    \
-	.hw_value = (_channel),    \
-	.flags = (_flags),         \
-	.max_antenna_gain = 0,     \
-	.max_power = 30,           \
-}
-
-static struct ieee80211_channel wfx_2ghz_chantable[] = {
-	CHAN2G(1,  2412, 0),
-	CHAN2G(2,  2417, 0),
-	CHAN2G(3,  2422, 0),
-	CHAN2G(4,  2427, 0),
-	CHAN2G(5,  2432, 0),
-	CHAN2G(6,  2437, 0),
-	CHAN2G(7,  2442, 0),
-	CHAN2G(8,  2447, 0),
-	CHAN2G(9,  2452, 0),
-	CHAN2G(10, 2457, 0),
-	CHAN2G(11, 2462, 0),
-	CHAN2G(12, 2467, 0),
-	CHAN2G(13, 2472, 0),
-	CHAN2G(14, 2484, 0),
-};
-
-static const struct ieee80211_supported_band wfx_band_2ghz = {
-	.channels = wfx_2ghz_chantable,
-	.n_channels = ARRAY_SIZE(wfx_2ghz_chantable),
-	.bitrates = wfx_rates,
-	.n_bitrates = ARRAY_SIZE(wfx_rates),
-	.ht_cap = {
-		/* Receive caps */
-		.cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 |
-		       IEEE80211_HT_CAP_MAX_AMSDU | (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT),
-		.ht_supported = 1,
-		.ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K,
-		.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
-		.mcs = {
-			.rx_mask = { 0xFF }, /* MCS0 to MCS7 */
-			.rx_highest = cpu_to_le16(72),
-			.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
-		},
-	},
-};
-
-static const struct ieee80211_iface_limit wdev_iface_limits[] = {
-	{ .max = 1, .types = BIT(NL80211_IFTYPE_STATION) },
-	{ .max = 1, .types = BIT(NL80211_IFTYPE_AP) },
-};
-
-static const struct ieee80211_iface_combination wfx_iface_combinations[] = {
-	{
-		.num_different_channels = 2,
-		.max_interfaces = 2,
-		.limits = wdev_iface_limits,
-		.n_limits = ARRAY_SIZE(wdev_iface_limits),
-	}
-};
-
-static const struct ieee80211_ops wfx_ops = {
-	.start                   = wfx_start,
-	.stop                    = wfx_stop,
-	.add_interface           = wfx_add_interface,
-	.remove_interface        = wfx_remove_interface,
-	.config                  = wfx_config,
-	.tx                      = wfx_tx,
-	.join_ibss               = wfx_join_ibss,
-	.leave_ibss              = wfx_leave_ibss,
-	.conf_tx                 = wfx_conf_tx,
-	.hw_scan                 = wfx_hw_scan,
-	.cancel_hw_scan          = wfx_cancel_hw_scan,
-	.start_ap                = wfx_start_ap,
-	.stop_ap                 = wfx_stop_ap,
-	.sta_add                 = wfx_sta_add,
-	.sta_remove              = wfx_sta_remove,
-	.set_tim                 = wfx_set_tim,
-	.set_key                 = wfx_set_key,
-	.set_rts_threshold       = wfx_set_rts_threshold,
-	.set_default_unicast_key = wfx_set_default_unicast_key,
-	.bss_info_changed        = wfx_bss_info_changed,
-	.configure_filter        = wfx_configure_filter,
-	.ampdu_action            = wfx_ampdu_action,
-	.flush                   = wfx_flush,
-	.add_chanctx             = wfx_add_chanctx,
-	.remove_chanctx          = wfx_remove_chanctx,
-	.change_chanctx          = wfx_change_chanctx,
-	.assign_vif_chanctx      = wfx_assign_vif_chanctx,
-	.unassign_vif_chanctx    = wfx_unassign_vif_chanctx,
-};
-
-bool wfx_api_older_than(struct wfx_dev *wdev, int major, int minor)
-{
-	if (wdev->hw_caps.api_version_major < major)
-		return true;
-	if (wdev->hw_caps.api_version_major > major)
-		return false;
-	if (wdev->hw_caps.api_version_minor < minor)
-		return true;
-	return false;
-}
-
-/* The device needs data about the antenna configuration. This information in provided by PDS
- * (Platform Data Set, this is the wording used in WF200 documentation) files. For hardware
- * integrators, the full process to create PDS files is described here:
- *   https://github.com/SiliconLabs/wfx-firmware/blob/master/PDS/README.md
- *
- * The PDS file is an array of Time-Length-Value structs.
- */
- int wfx_send_pds(struct wfx_dev *wdev, u8 *buf, size_t len)
-{
-	int ret, chunk_type, chunk_len, chunk_num = 0;
-
-	if (*buf == '{') {
-		dev_err(wdev->dev, "PDS: malformed file (legacy format?)\n");
-		return -EINVAL;
-	}
-	while (len > 0) {
-		chunk_type = get_unaligned_le16(buf + 0);
-		chunk_len = get_unaligned_le16(buf + 2);
-		if (chunk_len > len) {
-			dev_err(wdev->dev, "PDS:%d: corrupted file\n", chunk_num);
-			return -EINVAL;
-		}
-		if (chunk_type != WFX_PDS_TLV_TYPE) {
-			dev_info(wdev->dev, "PDS:%d: skip unknown data\n", chunk_num);
-			goto next;
-		}
-		if (chunk_len > WFX_PDS_MAX_CHUNK_SIZE)
-			dev_warn(wdev->dev, "PDS:%d: unexpectedly large chunk\n", chunk_num);
-		if (buf[4] != '{' || buf[chunk_len - 1] != '}')
-			dev_warn(wdev->dev, "PDS:%d: unexpected content\n", chunk_num);
-
-		ret = wfx_hif_configuration(wdev, buf + 4, chunk_len - 4);
-		if (ret > 0) {
-			dev_err(wdev->dev, "PDS:%d: invalid data (unsupported options?)\n", chunk_num);
-			return -EINVAL;
-		}
-		if (ret == -ETIMEDOUT) {
-			dev_err(wdev->dev, "PDS:%d: chip didn't reply (corrupted file?)\n", chunk_num);
-			return ret;
-		}
-		if (ret) {
-			dev_err(wdev->dev, "PDS:%d: chip returned an unknown error\n", chunk_num);
-			return -EIO;
-		}
-next:
-		chunk_num++;
-		len -= chunk_len;
-		buf += chunk_len;
-	}
-	return 0;
-}
-
-static int wfx_send_pdata_pds(struct wfx_dev *wdev)
-{
-	int ret = 0;
-	const struct firmware *pds;
-	u8 *tmp_buf;
-
-	ret = request_firmware(&pds, wdev->pdata.file_pds, wdev->dev);
-	if (ret) {
-		dev_err(wdev->dev, "can't load antenna parameters (PDS file %s). The device may be unstable.\n",
-			wdev->pdata.file_pds);
-		return ret;
-	}
-	tmp_buf = kmemdup(pds->data, pds->size, GFP_KERNEL);
-	if (!tmp_buf) {
-		ret = -ENOMEM;
-		goto release_fw;
-	}
-	ret = wfx_send_pds(wdev, tmp_buf, pds->size);
-	kfree(tmp_buf);
-release_fw:
-	release_firmware(pds);
-	return ret;
-}
-
-static void wfx_free_common(void *data)
-{
-	struct wfx_dev *wdev = data;
-
-	mutex_destroy(&wdev->tx_power_loop_info_lock);
-	mutex_destroy(&wdev->rx_stats_lock);
-	mutex_destroy(&wdev->conf_mutex);
-	ieee80211_free_hw(wdev->hw);
-}
-
-struct wfx_dev *wfx_init_common(struct device *dev, const struct wfx_platform_data *pdata,
-				const struct wfx_hwbus_ops *hwbus_ops, void *hwbus_priv)
-{
-	struct ieee80211_hw *hw;
-	struct wfx_dev *wdev;
-
-	hw = ieee80211_alloc_hw(sizeof(struct wfx_dev), &wfx_ops);
-	if (!hw)
-		return NULL;
-
-	SET_IEEE80211_DEV(hw, dev);
-
-	ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
-	ieee80211_hw_set(hw, AMPDU_AGGREGATION);
-	ieee80211_hw_set(hw, CONNECTION_MONITOR);
-	ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
-	ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
-	ieee80211_hw_set(hw, SIGNAL_DBM);
-	ieee80211_hw_set(hw, SUPPORTS_PS);
-	ieee80211_hw_set(hw, MFP_CAPABLE);
-
-	hw->vif_data_size = sizeof(struct wfx_vif);
-	hw->sta_data_size = sizeof(struct wfx_sta_priv);
-	hw->queues = 4;
-	hw->max_rates = 8;
-	hw->max_rate_tries = 8;
-	hw->extra_tx_headroom = sizeof(struct wfx_hif_msg) + sizeof(struct wfx_hif_req_tx) +
-				4 /* alignment */ + 8 /* TKIP IV */;
-	hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
-				     BIT(NL80211_IFTYPE_ADHOC) |
-				     BIT(NL80211_IFTYPE_AP);
-	hw->wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
-					NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
-					NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P |
-					NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U;
-	hw->wiphy->features |= NL80211_FEATURE_AP_SCAN;
-	hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
-	hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
-	hw->wiphy->max_ap_assoc_sta = HIF_LINK_ID_MAX;
-	hw->wiphy->max_scan_ssids = 2;
-	hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
-	hw->wiphy->n_iface_combinations = ARRAY_SIZE(wfx_iface_combinations);
-	hw->wiphy->iface_combinations = wfx_iface_combinations;
-	hw->wiphy->bands[NL80211_BAND_2GHZ] = devm_kmalloc(dev, sizeof(wfx_band_2ghz), GFP_KERNEL);
-	if (!hw->wiphy->bands[NL80211_BAND_2GHZ])
-		goto err;
-
-	/* FIXME: also copy wfx_rates and wfx_2ghz_chantable */
-	memcpy(hw->wiphy->bands[NL80211_BAND_2GHZ], &wfx_band_2ghz, sizeof(wfx_band_2ghz));
-
-	wdev = hw->priv;
-	wdev->hw = hw;
-	wdev->dev = dev;
-	wdev->hwbus_ops = hwbus_ops;
-	wdev->hwbus_priv = hwbus_priv;
-	memcpy(&wdev->pdata, pdata, sizeof(*pdata));
-	of_property_read_string(dev->of_node, "silabs,antenna-config-file", &wdev->pdata.file_pds);
-	wdev->pdata.gpio_wakeup = devm_gpiod_get_optional(dev, "wakeup", GPIOD_OUT_LOW);
-	if (IS_ERR(wdev->pdata.gpio_wakeup))
-		goto err;
-
-	if (wdev->pdata.gpio_wakeup)
-		gpiod_set_consumer_name(wdev->pdata.gpio_wakeup, "wfx wakeup");
-
-	mutex_init(&wdev->conf_mutex);
-	mutex_init(&wdev->rx_stats_lock);
-	mutex_init(&wdev->tx_power_loop_info_lock);
-	init_completion(&wdev->firmware_ready);
-	INIT_DELAYED_WORK(&wdev->cooling_timeout_work, wfx_cooling_timeout_work);
-	skb_queue_head_init(&wdev->tx_pending);
-	init_waitqueue_head(&wdev->tx_dequeue);
-	wfx_init_hif_cmd(&wdev->hif_cmd);
-
-	if (devm_add_action_or_reset(dev, wfx_free_common, wdev))
-		return NULL;
-
-	return wdev;
-
-err:
-	ieee80211_free_hw(hw);
-	return NULL;
-}
-
-int wfx_probe(struct wfx_dev *wdev)
-{
-	int i;
-	int err;
-	struct gpio_desc *gpio_saved;
-
-	/* During first part of boot, gpio_wakeup cannot yet been used. So prevent bh() to touch
-	 * it.
-	 */
-	gpio_saved = wdev->pdata.gpio_wakeup;
-	wdev->pdata.gpio_wakeup = NULL;
-	wdev->poll_irq = true;
-
-	wfx_bh_register(wdev);
-
-	err = wfx_init_device(wdev);
-	if (err)
-		goto bh_unregister;
-
-	wfx_bh_poll_irq(wdev);
-	err = wait_for_completion_timeout(&wdev->firmware_ready, 1 * HZ);
-	if (err <= 0) {
-		if (err == 0) {
-			dev_err(wdev->dev, "timeout while waiting for startup indication\n");
-			err = -ETIMEDOUT;
-		} else if (err == -ERESTARTSYS) {
-			dev_info(wdev->dev, "probe interrupted by user\n");
-		}
-		goto bh_unregister;
-	}
-
-	/* FIXME: fill wiphy::hw_version */
-	dev_info(wdev->dev, "started firmware %d.%d.%d \"%s\" (API: %d.%d, keyset: %02X, caps: 0x%.8X)\n",
-		 wdev->hw_caps.firmware_major, wdev->hw_caps.firmware_minor,
-		 wdev->hw_caps.firmware_build, wdev->hw_caps.firmware_label,
-		 wdev->hw_caps.api_version_major, wdev->hw_caps.api_version_minor,
-		 wdev->keyset, wdev->hw_caps.link_mode);
-	snprintf(wdev->hw->wiphy->fw_version,
-		 sizeof(wdev->hw->wiphy->fw_version),
-		 "%d.%d.%d",
-		 wdev->hw_caps.firmware_major,
-		 wdev->hw_caps.firmware_minor,
-		 wdev->hw_caps.firmware_build);
-
-	if (wfx_api_older_than(wdev, 1, 0)) {
-		dev_err(wdev->dev, "unsupported firmware API version (expect 1 while firmware returns %d)\n",
-			wdev->hw_caps.api_version_major);
-		err = -EOPNOTSUPP;
-		goto bh_unregister;
-	}
-
-	if (wdev->hw_caps.link_mode == SEC_LINK_ENFORCED) {
-		dev_err(wdev->dev, "chip require secure_link, but can't negotiate it\n");
-		goto bh_unregister;
-	}
-
-	if (wdev->hw_caps.region_sel_mode) {
-		wdev->hw->wiphy->regulatory_flags |= REGULATORY_DISABLE_BEACON_HINTS;
-		wdev->hw->wiphy->bands[NL80211_BAND_2GHZ]->channels[11].flags |=
-			IEEE80211_CHAN_NO_IR;
-		wdev->hw->wiphy->bands[NL80211_BAND_2GHZ]->channels[12].flags |=
-			IEEE80211_CHAN_NO_IR;
-		wdev->hw->wiphy->bands[NL80211_BAND_2GHZ]->channels[13].flags |=
-			IEEE80211_CHAN_DISABLED;
-	}
-
-	dev_dbg(wdev->dev, "sending configuration file %s\n", wdev->pdata.file_pds);
-	err = wfx_send_pdata_pds(wdev);
-	if (err < 0 && err != -ENOENT)
-		goto bh_unregister;
-
-	wdev->poll_irq = false;
-	err = wdev->hwbus_ops->irq_subscribe(wdev->hwbus_priv);
-	if (err)
-		goto bh_unregister;
-
-	err = wfx_hif_use_multi_tx_conf(wdev, true);
-	if (err)
-		dev_err(wdev->dev, "misconfigured IRQ?\n");
-
-	wdev->pdata.gpio_wakeup = gpio_saved;
-	if (wdev->pdata.gpio_wakeup) {
-		dev_dbg(wdev->dev, "enable 'quiescent' power mode with wakeup GPIO and PDS file %s\n",
-			wdev->pdata.file_pds);
-		gpiod_set_value_cansleep(wdev->pdata.gpio_wakeup, 1);
-		wfx_control_reg_write(wdev, 0);
-		wfx_hif_set_operational_mode(wdev, HIF_OP_POWER_MODE_QUIESCENT);
-	} else {
-		wfx_hif_set_operational_mode(wdev, HIF_OP_POWER_MODE_DOZE);
-	}
-
-	for (i = 0; i < ARRAY_SIZE(wdev->addresses); i++) {
-		eth_zero_addr(wdev->addresses[i].addr);
-		err = of_get_mac_address(wdev->dev->of_node, wdev->addresses[i].addr);
-		if (!err)
-			wdev->addresses[i].addr[ETH_ALEN - 1] += i;
-		else
-			ether_addr_copy(wdev->addresses[i].addr, wdev->hw_caps.mac_addr[i]);
-		if (!is_valid_ether_addr(wdev->addresses[i].addr)) {
-			dev_warn(wdev->dev, "using random MAC address\n");
-			eth_random_addr(wdev->addresses[i].addr);
-		}
-		dev_info(wdev->dev, "MAC address %d: %pM\n", i, wdev->addresses[i].addr);
-	}
-	wdev->hw->wiphy->n_addresses = ARRAY_SIZE(wdev->addresses);
-	wdev->hw->wiphy->addresses = wdev->addresses;
-
-	if (!wfx_api_older_than(wdev, 3, 8))
-		wdev->hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
-
-	err = ieee80211_register_hw(wdev->hw);
-	if (err)
-		goto irq_unsubscribe;
-
-	err = wfx_debug_init(wdev);
-	if (err)
-		goto ieee80211_unregister;
-
-	return 0;
-
-ieee80211_unregister:
-	ieee80211_unregister_hw(wdev->hw);
-irq_unsubscribe:
-	wdev->hwbus_ops->irq_unsubscribe(wdev->hwbus_priv);
-bh_unregister:
-	wfx_bh_unregister(wdev);
-	return err;
-}
-
-void wfx_release(struct wfx_dev *wdev)
-{
-	ieee80211_unregister_hw(wdev->hw);
-	wfx_hif_shutdown(wdev);
-	wdev->hwbus_ops->irq_unsubscribe(wdev->hwbus_priv);
-	wfx_bh_unregister(wdev);
-}
-
-static int __init wfx_core_init(void)
-{
-	int ret = 0;
-
-	if (IS_ENABLED(CONFIG_SPI))
-		ret = spi_register_driver(&wfx_spi_driver);
-	if (IS_ENABLED(CONFIG_MMC) && !ret)
-		ret = sdio_register_driver(&wfx_sdio_driver);
-	return ret;
-}
-module_init(wfx_core_init);
-
-static void __exit wfx_core_exit(void)
-{
-	if (IS_ENABLED(CONFIG_MMC))
-		sdio_unregister_driver(&wfx_sdio_driver);
-	if (IS_ENABLED(CONFIG_SPI))
-		spi_unregister_driver(&wfx_spi_driver);
-}
-module_exit(wfx_core_exit);
diff --git a/drivers/staging/wfx/main.h b/drivers/staging/wfx/main.h
deleted file mode 100644
index 68c665307153..000000000000
--- a/drivers/staging/wfx/main.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Device probe and register.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
- * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
- */
-#ifndef WFX_MAIN_H
-#define WFX_MAIN_H
-
-#include <linux/device.h>
-#include <linux/gpio/consumer.h>
-
-#include "hif_api_general.h"
-
-struct wfx_dev;
-struct wfx_hwbus_ops;
-
-struct wfx_platform_data {
-	/* Keyset and ".sec" extension will be appended to this string */
-	const char *file_fw;
-	const char *file_pds;
-	struct gpio_desc *gpio_wakeup;
-	/* if true HIF D_out is sampled on the rising edge of the clock (intended to be used in
-	 * 50Mhz SDIO)
-	 */
-	bool use_rising_clk;
-};
-
-struct wfx_dev *wfx_init_common(struct device *dev, const struct wfx_platform_data *pdata,
-				const struct wfx_hwbus_ops *hwbus_ops, void *hwbus_priv);
-
-int wfx_probe(struct wfx_dev *wdev);
-void wfx_release(struct wfx_dev *wdev);
-
-bool wfx_api_older_than(struct wfx_dev *wdev, int major, int minor);
-int wfx_send_pds(struct wfx_dev *wdev, u8 *buf, size_t len);
-
-#endif
diff --git a/drivers/staging/wfx/queue.c b/drivers/staging/wfx/queue.c
deleted file mode 100644
index 729825230db2..000000000000
--- a/drivers/staging/wfx/queue.c
+++ /dev/null
@@ -1,297 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Queue between the tx operation and the bh workqueue.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/sched.h>
-#include <net/mac80211.h>
-
-#include "queue.h"
-#include "wfx.h"
-#include "sta.h"
-#include "data_tx.h"
-#include "traces.h"
-
-void wfx_tx_lock(struct wfx_dev *wdev)
-{
-	atomic_inc(&wdev->tx_lock);
-}
-
-void wfx_tx_unlock(struct wfx_dev *wdev)
-{
-	int tx_lock = atomic_dec_return(&wdev->tx_lock);
-
-	WARN(tx_lock < 0, "inconsistent tx_lock value");
-	if (!tx_lock)
-		wfx_bh_request_tx(wdev);
-}
-
-void wfx_tx_flush(struct wfx_dev *wdev)
-{
-	int ret;
-
-	/* Do not wait for any reply if chip is frozen */
-	if (wdev->chip_frozen)
-		return;
-
-	wfx_tx_lock(wdev);
-	mutex_lock(&wdev->hif_cmd.lock);
-	ret = wait_event_timeout(wdev->hif.tx_buffers_empty, !wdev->hif.tx_buffers_used,
-				 msecs_to_jiffies(3000));
-	if (!ret) {
-		dev_warn(wdev->dev, "cannot flush tx buffers (%d still busy)\n",
-			 wdev->hif.tx_buffers_used);
-		wfx_pending_dump_old_frames(wdev, 3000);
-		/* FIXME: drop pending frames here */
-		wdev->chip_frozen = true;
-	}
-	mutex_unlock(&wdev->hif_cmd.lock);
-	wfx_tx_unlock(wdev);
-}
-
-void wfx_tx_lock_flush(struct wfx_dev *wdev)
-{
-	wfx_tx_lock(wdev);
-	wfx_tx_flush(wdev);
-}
-
-void wfx_tx_queues_init(struct wfx_vif *wvif)
-{
-	/* The device is in charge to respect the details of the QoS parameters. The driver just
-	 * ensure that it roughtly respect the priorities to avoid any shortage.
-	 */
-	const int priorities[IEEE80211_NUM_ACS] = { 1, 2, 64, 128 };
-	int i;
-
-	for (i = 0; i < IEEE80211_NUM_ACS; ++i) {
-		skb_queue_head_init(&wvif->tx_queue[i].normal);
-		skb_queue_head_init(&wvif->tx_queue[i].cab);
-		wvif->tx_queue[i].priority = priorities[i];
-	}
-}
-
-bool wfx_tx_queue_empty(struct wfx_vif *wvif, struct wfx_queue *queue)
-{
-	return skb_queue_empty_lockless(&queue->normal) && skb_queue_empty_lockless(&queue->cab);
-}
-
-void wfx_tx_queues_check_empty(struct wfx_vif *wvif)
-{
-	int i;
-
-	for (i = 0; i < IEEE80211_NUM_ACS; ++i) {
-		WARN_ON(atomic_read(&wvif->tx_queue[i].pending_frames));
-		WARN_ON(!wfx_tx_queue_empty(wvif, &wvif->tx_queue[i]));
-	}
-}
-
-static void __wfx_tx_queue_drop(struct wfx_vif *wvif,
-				struct sk_buff_head *skb_queue, struct sk_buff_head *dropped)
-{
-	struct sk_buff *skb, *tmp;
-
-	spin_lock_bh(&skb_queue->lock);
-	skb_queue_walk_safe(skb_queue, skb, tmp) {
-		__skb_unlink(skb, skb_queue);
-		skb_queue_head(dropped, skb);
-	}
-	spin_unlock_bh(&skb_queue->lock);
-}
-
-void wfx_tx_queue_drop(struct wfx_vif *wvif, struct wfx_queue *queue,
-		       struct sk_buff_head *dropped)
-{
-	__wfx_tx_queue_drop(wvif, &queue->cab, dropped);
-	__wfx_tx_queue_drop(wvif, &queue->normal, dropped);
-	wake_up(&wvif->wdev->tx_dequeue);
-}
-
-void wfx_tx_queues_put(struct wfx_vif *wvif, struct sk_buff *skb)
-{
-	struct wfx_queue *queue = &wvif->tx_queue[skb_get_queue_mapping(skb)];
-	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
-
-	if (tx_info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM)
-		skb_queue_tail(&queue->cab, skb);
-	else
-		skb_queue_tail(&queue->normal, skb);
-}
-
-void wfx_pending_drop(struct wfx_dev *wdev, struct sk_buff_head *dropped)
-{
-	struct wfx_queue *queue;
-	struct wfx_vif *wvif;
-	struct wfx_hif_msg *hif;
-	struct sk_buff *skb;
-
-	WARN(!wdev->chip_frozen, "%s should only be used to recover a frozen device", __func__);
-	while ((skb = skb_dequeue(&wdev->tx_pending)) != NULL) {
-		hif = (struct wfx_hif_msg *)skb->data;
-		wvif = wdev_to_wvif(wdev, hif->interface);
-		if (wvif) {
-			queue = &wvif->tx_queue[skb_get_queue_mapping(skb)];
-			WARN_ON(skb_get_queue_mapping(skb) > 3);
-			WARN_ON(!atomic_read(&queue->pending_frames));
-			atomic_dec(&queue->pending_frames);
-		}
-		skb_queue_head(dropped, skb);
-	}
-}
-
-struct sk_buff *wfx_pending_get(struct wfx_dev *wdev, u32 packet_id)
-{
-	struct wfx_queue *queue;
-	struct wfx_hif_req_tx *req;
-	struct wfx_vif *wvif;
-	struct wfx_hif_msg *hif;
-	struct sk_buff *skb;
-
-	spin_lock_bh(&wdev->tx_pending.lock);
-	skb_queue_walk(&wdev->tx_pending, skb) {
-		hif = (struct wfx_hif_msg *)skb->data;
-		req = (struct wfx_hif_req_tx *)hif->body;
-		if (req->packet_id != packet_id)
-			continue;
-		spin_unlock_bh(&wdev->tx_pending.lock);
-		wvif = wdev_to_wvif(wdev, hif->interface);
-		if (wvif) {
-			queue = &wvif->tx_queue[skb_get_queue_mapping(skb)];
-			WARN_ON(skb_get_queue_mapping(skb) > 3);
-			WARN_ON(!atomic_read(&queue->pending_frames));
-			atomic_dec(&queue->pending_frames);
-		}
-		skb_unlink(skb, &wdev->tx_pending);
-		return skb;
-	}
-	spin_unlock_bh(&wdev->tx_pending.lock);
-	WARN(1, "cannot find packet in pending queue");
-	return NULL;
-}
-
-void wfx_pending_dump_old_frames(struct wfx_dev *wdev, unsigned int limit_ms)
-{
-	ktime_t now = ktime_get();
-	struct wfx_tx_priv *tx_priv;
-	struct wfx_hif_req_tx *req;
-	struct sk_buff *skb;
-	bool first = true;
-
-	spin_lock_bh(&wdev->tx_pending.lock);
-	skb_queue_walk(&wdev->tx_pending, skb) {
-		tx_priv = wfx_skb_tx_priv(skb);
-		req = wfx_skb_txreq(skb);
-		if (ktime_after(now, ktime_add_ms(tx_priv->xmit_timestamp, limit_ms))) {
-			if (first) {
-				dev_info(wdev->dev, "frames stuck in firmware since %dms or more:\n",
-					 limit_ms);
-				first = false;
-			}
-			dev_info(wdev->dev, "   id %08x sent %lldms ago\n",
-				 req->packet_id, ktime_ms_delta(now, tx_priv->xmit_timestamp));
-		}
-	}
-	spin_unlock_bh(&wdev->tx_pending.lock);
-}
-
-unsigned int wfx_pending_get_pkt_us_delay(struct wfx_dev *wdev, struct sk_buff *skb)
-{
-	ktime_t now = ktime_get();
-	struct wfx_tx_priv *tx_priv = wfx_skb_tx_priv(skb);
-
-	return ktime_us_delta(now, tx_priv->xmit_timestamp);
-}
-
-bool wfx_tx_queues_has_cab(struct wfx_vif *wvif)
-{
-	int i;
-
-	if (wvif->vif->type != NL80211_IFTYPE_AP)
-		return false;
-	for (i = 0; i < IEEE80211_NUM_ACS; ++i)
-		/* Note: since only AP can have mcast frames in queue and only one vif can be AP,
-		 * all queued frames has same interface id
-		 */
-		if (!skb_queue_empty_lockless(&wvif->tx_queue[i].cab))
-			return true;
-	return false;
-}
-
-static int wfx_tx_queue_get_weight(struct wfx_queue *queue)
-{
-	return atomic_read(&queue->pending_frames) * queue->priority;
-}
-
-static struct sk_buff *wfx_tx_queues_get_skb(struct wfx_dev *wdev)
-{
-	struct wfx_queue *queues[IEEE80211_NUM_ACS * ARRAY_SIZE(wdev->vif)];
-	int i, j, num_queues = 0;
-	struct wfx_vif *wvif;
-	struct wfx_hif_msg *hif;
-	struct sk_buff *skb;
-
-	/* sort the queues */
-	wvif = NULL;
-	while ((wvif = wvif_iterate(wdev, wvif)) != NULL) {
-		for (i = 0; i < IEEE80211_NUM_ACS; i++) {
-			WARN_ON(num_queues >= ARRAY_SIZE(queues));
-			queues[num_queues] = &wvif->tx_queue[i];
-			for (j = num_queues; j > 0; j--)
-				if (wfx_tx_queue_get_weight(queues[j]) <
-				    wfx_tx_queue_get_weight(queues[j - 1]))
-					swap(queues[j - 1], queues[j]);
-			num_queues++;
-		}
-	}
-
-	wvif = NULL;
-	while ((wvif = wvif_iterate(wdev, wvif)) != NULL) {
-		if (!wvif->after_dtim_tx_allowed)
-			continue;
-		for (i = 0; i < num_queues; i++) {
-			skb = skb_dequeue(&queues[i]->cab);
-			if (!skb)
-				continue;
-			/* Note: since only AP can have mcast frames in queue and only one vif can
-			 * be AP, all queued frames has same interface id
-			 */
-			hif = (struct wfx_hif_msg *)skb->data;
-			WARN_ON(hif->interface != wvif->id);
-			WARN_ON(queues[i] != &wvif->tx_queue[skb_get_queue_mapping(skb)]);
-			atomic_inc(&queues[i]->pending_frames);
-			trace_queues_stats(wdev, queues[i]);
-			return skb;
-		}
-		/* No more multicast to sent */
-		wvif->after_dtim_tx_allowed = false;
-		schedule_work(&wvif->update_tim_work);
-	}
-
-	for (i = 0; i < num_queues; i++) {
-		skb = skb_dequeue(&queues[i]->normal);
-		if (skb) {
-			atomic_inc(&queues[i]->pending_frames);
-			trace_queues_stats(wdev, queues[i]);
-			return skb;
-		}
-	}
-	return NULL;
-}
-
-struct wfx_hif_msg *wfx_tx_queues_get(struct wfx_dev *wdev)
-{
-	struct wfx_tx_priv *tx_priv;
-	struct sk_buff *skb;
-
-	if (atomic_read(&wdev->tx_lock))
-		return NULL;
-	skb = wfx_tx_queues_get_skb(wdev);
-	if (!skb)
-		return NULL;
-	skb_queue_tail(&wdev->tx_pending, skb);
-	wake_up(&wdev->tx_dequeue);
-	tx_priv = wfx_skb_tx_priv(skb);
-	tx_priv->xmit_timestamp = ktime_get();
-	return (struct wfx_hif_msg *)skb->data;
-}
diff --git a/drivers/staging/wfx/queue.h b/drivers/staging/wfx/queue.h
deleted file mode 100644
index 4731debca93d..000000000000
--- a/drivers/staging/wfx/queue.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Queue between the tx operation and the bh workqueue.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#ifndef WFX_QUEUE_H
-#define WFX_QUEUE_H
-
-#include <linux/skbuff.h>
-#include <linux/atomic.h>
-
-struct wfx_dev;
-struct wfx_vif;
-
-struct wfx_queue {
-	struct sk_buff_head normal;
-	struct sk_buff_head cab; /* Content After (DTIM) Beacon */
-	atomic_t            pending_frames;
-	int                 priority;
-};
-
-void wfx_tx_lock(struct wfx_dev *wdev);
-void wfx_tx_unlock(struct wfx_dev *wdev);
-void wfx_tx_flush(struct wfx_dev *wdev);
-void wfx_tx_lock_flush(struct wfx_dev *wdev);
-
-void wfx_tx_queues_init(struct wfx_vif *wvif);
-void wfx_tx_queues_check_empty(struct wfx_vif *wvif);
-bool wfx_tx_queues_has_cab(struct wfx_vif *wvif);
-void wfx_tx_queues_put(struct wfx_vif *wvif, struct sk_buff *skb);
-struct wfx_hif_msg *wfx_tx_queues_get(struct wfx_dev *wdev);
-
-bool wfx_tx_queue_empty(struct wfx_vif *wvif, struct wfx_queue *queue);
-void wfx_tx_queue_drop(struct wfx_vif *wvif, struct wfx_queue *queue,
-		       struct sk_buff_head *dropped);
-
-struct sk_buff *wfx_pending_get(struct wfx_dev *wdev, u32 packet_id);
-void wfx_pending_drop(struct wfx_dev *wdev, struct sk_buff_head *dropped);
-unsigned int wfx_pending_get_pkt_us_delay(struct wfx_dev *wdev, struct sk_buff *skb);
-void wfx_pending_dump_old_frames(struct wfx_dev *wdev, unsigned int limit_ms);
-
-#endif
diff --git a/drivers/staging/wfx/scan.c b/drivers/staging/wfx/scan.c
deleted file mode 100644
index 7f34f0d322f9..000000000000
--- a/drivers/staging/wfx/scan.c
+++ /dev/null
@@ -1,144 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Scan related functions.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <net/mac80211.h>
-
-#include "scan.h"
-#include "wfx.h"
-#include "sta.h"
-#include "hif_tx_mib.h"
-
-static void wfx_ieee80211_scan_completed_compat(struct ieee80211_hw *hw, bool aborted)
-{
-	struct cfg80211_scan_info info = {
-		.aborted = aborted,
-	};
-
-	ieee80211_scan_completed(hw, &info);
-}
-
-static int update_probe_tmpl(struct wfx_vif *wvif, struct cfg80211_scan_request *req)
-{
-	struct sk_buff *skb;
-
-	skb = ieee80211_probereq_get(wvif->wdev->hw, wvif->vif->addr, NULL, 0, req->ie_len);
-	if (!skb)
-		return -ENOMEM;
-
-	skb_put_data(skb, req->ie, req->ie_len);
-	wfx_hif_set_template_frame(wvif, skb, HIF_TMPLT_PRBREQ, 0);
-	dev_kfree_skb(skb);
-	return 0;
-}
-
-static int send_scan_req(struct wfx_vif *wvif, struct cfg80211_scan_request *req, int start_idx)
-{
-	int i, ret;
-	struct ieee80211_channel *ch_start, *ch_cur;
-
-	for (i = start_idx; i < req->n_channels; i++) {
-		ch_start = req->channels[start_idx];
-		ch_cur = req->channels[i];
-		WARN(ch_cur->band != NL80211_BAND_2GHZ, "band not supported");
-		if (ch_cur->max_power != ch_start->max_power)
-			break;
-		if ((ch_cur->flags ^ ch_start->flags) & IEEE80211_CHAN_NO_IR)
-			break;
-	}
-	wfx_tx_lock_flush(wvif->wdev);
-	wvif->scan_abort = false;
-	reinit_completion(&wvif->scan_complete);
-	ret = wfx_hif_scan(wvif, req, start_idx, i - start_idx);
-	if (ret) {
-		wfx_tx_unlock(wvif->wdev);
-		return -EIO;
-	}
-	ret = wait_for_completion_timeout(&wvif->scan_complete, 1 * HZ);
-	if (!ret) {
-		wfx_hif_stop_scan(wvif);
-		ret = wait_for_completion_timeout(&wvif->scan_complete, 1 * HZ);
-		dev_dbg(wvif->wdev->dev, "scan timeout (%d channels done)\n",
-			wvif->scan_nb_chan_done);
-	}
-	if (!ret) {
-		dev_err(wvif->wdev->dev, "scan didn't stop\n");
-		ret = -ETIMEDOUT;
-	} else if (wvif->scan_abort) {
-		dev_notice(wvif->wdev->dev, "scan abort\n");
-		ret = -ECONNABORTED;
-	} else if (wvif->scan_nb_chan_done > i - start_idx) {
-		ret = -EIO;
-	} else {
-		ret = wvif->scan_nb_chan_done;
-	}
-	if (req->channels[start_idx]->max_power != wvif->vif->bss_conf.txpower)
-		wfx_hif_set_output_power(wvif, wvif->vif->bss_conf.txpower);
-	wfx_tx_unlock(wvif->wdev);
-	return ret;
-}
-
-/* It is not really necessary to run scan request asynchronously. However,
- * there is a bug in "iw scan" when ieee80211_scan_completed() is called before
- * wfx_hw_scan() return
- */
-void wfx_hw_scan_work(struct work_struct *work)
-{
-	struct wfx_vif *wvif = container_of(work, struct wfx_vif, scan_work);
-	struct ieee80211_scan_request *hw_req = wvif->scan_req;
-	int chan_cur, ret, err;
-
-	mutex_lock(&wvif->wdev->conf_mutex);
-	mutex_lock(&wvif->scan_lock);
-	if (wvif->join_in_progress) {
-		dev_info(wvif->wdev->dev, "abort in-progress REQ_JOIN");
-		wfx_reset(wvif);
-	}
-	update_probe_tmpl(wvif, &hw_req->req);
-	chan_cur = 0;
-	err = 0;
-	do {
-		ret = send_scan_req(wvif, &hw_req->req, chan_cur);
-		if (ret > 0) {
-			chan_cur += ret;
-			err = 0;
-		}
-		if (!ret)
-			err++;
-		if (err > 2) {
-			dev_err(wvif->wdev->dev, "scan has not been able to start\n");
-			ret = -ETIMEDOUT;
-		}
-	} while (ret >= 0 && chan_cur < hw_req->req.n_channels);
-	mutex_unlock(&wvif->scan_lock);
-	mutex_unlock(&wvif->wdev->conf_mutex);
-	wfx_ieee80211_scan_completed_compat(wvif->wdev->hw, ret < 0);
-}
-
-int wfx_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		struct ieee80211_scan_request *hw_req)
-{
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-
-	WARN_ON(hw_req->req.n_channels > HIF_API_MAX_NB_CHANNELS);
-	wvif->scan_req = hw_req;
-	schedule_work(&wvif->scan_work);
-	return 0;
-}
-
-void wfx_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
-{
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-
-	wvif->scan_abort = true;
-	wfx_hif_stop_scan(wvif);
-}
-
-void wfx_scan_complete(struct wfx_vif *wvif, int nb_chan_done)
-{
-	wvif->scan_nb_chan_done = nb_chan_done;
-	complete(&wvif->scan_complete);
-}
diff --git a/drivers/staging/wfx/scan.h b/drivers/staging/wfx/scan.h
deleted file mode 100644
index 78e3b984f375..000000000000
--- a/drivers/staging/wfx/scan.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Scan related functions.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#ifndef WFX_SCAN_H
-#define WFX_SCAN_H
-
-#include <net/mac80211.h>
-
-struct wfx_dev;
-struct wfx_vif;
-
-void wfx_hw_scan_work(struct work_struct *work);
-int wfx_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		struct ieee80211_scan_request *req);
-void wfx_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
-void wfx_scan_complete(struct wfx_vif *wvif, int nb_chan_done);
-
-#endif
diff --git a/drivers/staging/wfx/sta.c b/drivers/staging/wfx/sta.c
deleted file mode 100644
index b1e9fb14d2b4..000000000000
--- a/drivers/staging/wfx/sta.c
+++ /dev/null
@@ -1,794 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Implementation of mac80211 API.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#include <linux/etherdevice.h>
-#include <net/mac80211.h>
-
-#include "sta.h"
-#include "wfx.h"
-#include "fwio.h"
-#include "bh.h"
-#include "key.h"
-#include "scan.h"
-#include "debug.h"
-#include "hif_tx.h"
-#include "hif_tx_mib.h"
-
-#define HIF_MAX_ARP_IP_ADDRTABLE_ENTRIES 2
-
-u32 wfx_rate_mask_to_hw(struct wfx_dev *wdev, u32 rates)
-{
-	int i;
-	u32 ret = 0;
-	/* The device only supports 2GHz */
-	struct ieee80211_supported_band *sband = wdev->hw->wiphy->bands[NL80211_BAND_2GHZ];
-
-	for (i = 0; i < sband->n_bitrates; i++) {
-		if (rates & BIT(i)) {
-			if (i >= sband->n_bitrates)
-				dev_warn(wdev->dev, "unsupported basic rate\n");
-			else
-				ret |= BIT(sband->bitrates[i].hw_value);
-		}
-	}
-	return ret;
-}
-
-void wfx_cooling_timeout_work(struct work_struct *work)
-{
-	struct wfx_dev *wdev = container_of(to_delayed_work(work), struct wfx_dev,
-					    cooling_timeout_work);
-
-	wdev->chip_frozen = true;
-	wfx_tx_unlock(wdev);
-}
-
-void wfx_suspend_hot_dev(struct wfx_dev *wdev, enum sta_notify_cmd cmd)
-{
-	if (cmd == STA_NOTIFY_AWAKE) {
-		/* Device recover normal temperature */
-		if (cancel_delayed_work(&wdev->cooling_timeout_work))
-			wfx_tx_unlock(wdev);
-	} else {
-		/* Device is too hot */
-		schedule_delayed_work(&wdev->cooling_timeout_work, 10 * HZ);
-		wfx_tx_lock(wdev);
-	}
-}
-
-static void wfx_filter_beacon(struct wfx_vif *wvif, bool filter_beacon)
-{
-	static const struct wfx_hif_ie_table_entry filter_ies[] = {
-		{
-			.ie_id        = WLAN_EID_VENDOR_SPECIFIC,
-			.has_changed  = 1,
-			.no_longer    = 1,
-			.has_appeared = 1,
-			.oui          = { 0x50, 0x6F, 0x9A },
-		}, {
-			.ie_id        = WLAN_EID_HT_OPERATION,
-			.has_changed  = 1,
-			.no_longer    = 1,
-			.has_appeared = 1,
-		}, {
-			.ie_id        = WLAN_EID_ERP_INFO,
-			.has_changed  = 1,
-			.no_longer    = 1,
-			.has_appeared = 1,
-		}, {
-			.ie_id        = WLAN_EID_CHANNEL_SWITCH,
-			.has_changed  = 1,
-			.no_longer    = 1,
-			.has_appeared = 1,
-		}
-	};
-
-	if (!filter_beacon) {
-		wfx_hif_beacon_filter_control(wvif, 0, 1);
-	} else {
-		wfx_hif_set_beacon_filter_table(wvif, ARRAY_SIZE(filter_ies), filter_ies);
-		wfx_hif_beacon_filter_control(wvif, HIF_BEACON_FILTER_ENABLE, 0);
-	}
-}
-
-void wfx_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
-			  unsigned int *total_flags, u64 unused)
-{
-	struct wfx_vif *wvif = NULL;
-	struct wfx_dev *wdev = hw->priv;
-	bool filter_bssid, filter_prbreq, filter_beacon;
-
-	/* Notes:
-	 *   - Probe responses (FIF_BCN_PRBRESP_PROMISC) are never filtered
-	 *   - PS-Poll (FIF_PSPOLL) are never filtered
-	 *   - RTS, CTS and Ack (FIF_CONTROL) are always filtered
-	 *   - Broken frames (FIF_FCSFAIL and FIF_PLCPFAIL) are always filtered
-	 *   - Firmware does (yet) allow to forward unicast traffic sent to other stations (aka.
-	 *     promiscuous mode)
-	 */
-	*total_flags &= FIF_BCN_PRBRESP_PROMISC | FIF_ALLMULTI | FIF_OTHER_BSS |
-			FIF_PROBE_REQ | FIF_PSPOLL;
-
-	mutex_lock(&wdev->conf_mutex);
-	while ((wvif = wvif_iterate(wdev, wvif)) != NULL) {
-		mutex_lock(&wvif->scan_lock);
-
-		/* Note: FIF_BCN_PRBRESP_PROMISC covers probe response and
-		 * beacons from other BSS
-		 */
-		if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
-			filter_beacon = false;
-		else
-			filter_beacon = true;
-		wfx_filter_beacon(wvif, filter_beacon);
-
-		if (*total_flags & FIF_OTHER_BSS)
-			filter_bssid = false;
-		else
-			filter_bssid = true;
-
-		/* In AP mode, chip can reply to probe request itself */
-		if (*total_flags & FIF_PROBE_REQ && wvif->vif->type == NL80211_IFTYPE_AP) {
-			dev_dbg(wdev->dev, "do not forward probe request in AP mode\n");
-			*total_flags &= ~FIF_PROBE_REQ;
-		}
-
-		if (*total_flags & FIF_PROBE_REQ)
-			filter_prbreq = false;
-		else
-			filter_prbreq = true;
-		wfx_hif_set_rx_filter(wvif, filter_bssid, filter_prbreq);
-
-		mutex_unlock(&wvif->scan_lock);
-	}
-	mutex_unlock(&wdev->conf_mutex);
-}
-
-static int wfx_get_ps_timeout(struct wfx_vif *wvif, bool *enable_ps)
-{
-	struct ieee80211_channel *chan0 = NULL, *chan1 = NULL;
-	struct ieee80211_conf *conf = &wvif->wdev->hw->conf;
-
-	WARN(!wvif->vif->bss_conf.assoc && enable_ps,
-	     "enable_ps is reliable only if associated");
-	if (wdev_to_wvif(wvif->wdev, 0))
-		chan0 = wdev_to_wvif(wvif->wdev, 0)->vif->bss_conf.chandef.chan;
-	if (wdev_to_wvif(wvif->wdev, 1))
-		chan1 = wdev_to_wvif(wvif->wdev, 1)->vif->bss_conf.chandef.chan;
-	if (chan0 && chan1 && wvif->vif->type != NL80211_IFTYPE_AP) {
-		if (chan0->hw_value == chan1->hw_value) {
-			/* It is useless to enable PS if channels are the same. */
-			if (enable_ps)
-				*enable_ps = false;
-			if (wvif->vif->bss_conf.assoc && wvif->vif->bss_conf.ps)
-				dev_info(wvif->wdev->dev, "ignoring requested PS mode");
-			return -1;
-		}
-		/* It is necessary to enable PS if channels are different. */
-		if (enable_ps)
-			*enable_ps = true;
-		if (wfx_api_older_than(wvif->wdev, 3, 2))
-			return 0;
-		else
-			return 30;
-	}
-	if (enable_ps)
-		*enable_ps = wvif->vif->bss_conf.ps;
-	if (wvif->vif->bss_conf.assoc && wvif->vif->bss_conf.ps)
-		return conf->dynamic_ps_timeout;
-	else
-		return -1;
-}
-
-int wfx_update_pm(struct wfx_vif *wvif)
-{
-	int ps_timeout;
-	bool ps;
-
-	if (!wvif->vif->bss_conf.assoc)
-		return 0;
-	ps_timeout = wfx_get_ps_timeout(wvif, &ps);
-	if (!ps)
-		ps_timeout = 0;
-	WARN_ON(ps_timeout < 0);
-	if (wvif->uapsd_mask)
-		ps_timeout = 0;
-
-	if (!wait_for_completion_timeout(&wvif->set_pm_mode_complete, TU_TO_JIFFIES(512)))
-		dev_warn(wvif->wdev->dev, "timeout while waiting of set_pm_mode_complete\n");
-	return wfx_hif_set_pm(wvif, ps, ps_timeout);
-}
-
-int wfx_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		u16 queue, const struct ieee80211_tx_queue_params *params)
-{
-	struct wfx_dev *wdev = hw->priv;
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-	int old_uapsd = wvif->uapsd_mask;
-
-	WARN_ON(queue >= hw->queues);
-
-	mutex_lock(&wdev->conf_mutex);
-	assign_bit(queue, &wvif->uapsd_mask, params->uapsd);
-	wfx_hif_set_edca_queue_params(wvif, queue, params);
-	if (wvif->vif->type == NL80211_IFTYPE_STATION && old_uapsd != wvif->uapsd_mask) {
-		wfx_hif_set_uapsd_info(wvif, wvif->uapsd_mask);
-		wfx_update_pm(wvif);
-	}
-	mutex_unlock(&wdev->conf_mutex);
-	return 0;
-}
-
-int wfx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
-{
-	struct wfx_dev *wdev = hw->priv;
-	struct wfx_vif *wvif = NULL;
-
-	while ((wvif = wvif_iterate(wdev, wvif)) != NULL)
-		wfx_hif_rts_threshold(wvif, value);
-	return 0;
-}
-
-void wfx_event_report_rssi(struct wfx_vif *wvif, u8 raw_rcpi_rssi)
-{
-	/* RSSI: signed Q8.0, RCPI: unsigned Q7.1
-	 * RSSI = RCPI / 2 - 110
-	 */
-	int rcpi_rssi;
-	int cqm_evt;
-
-	rcpi_rssi = raw_rcpi_rssi / 2 - 110;
-	if (rcpi_rssi <= wvif->vif->bss_conf.cqm_rssi_thold)
-		cqm_evt = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
-	else
-		cqm_evt = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
-	ieee80211_cqm_rssi_notify(wvif->vif, cqm_evt, rcpi_rssi, GFP_KERNEL);
-}
-
-static void wfx_beacon_loss_work(struct work_struct *work)
-{
-	struct wfx_vif *wvif = container_of(to_delayed_work(work), struct wfx_vif,
-					    beacon_loss_work);
-	struct ieee80211_bss_conf *bss_conf = &wvif->vif->bss_conf;
-
-	ieee80211_beacon_loss(wvif->vif);
-	schedule_delayed_work(to_delayed_work(work), msecs_to_jiffies(bss_conf->beacon_int));
-}
-
-void wfx_set_default_unicast_key(struct ieee80211_hw *hw, struct ieee80211_vif *vif, int idx)
-{
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-
-	wfx_hif_wep_default_key_id(wvif, idx);
-}
-
-void wfx_reset(struct wfx_vif *wvif)
-{
-	struct wfx_dev *wdev = wvif->wdev;
-
-	wfx_tx_lock_flush(wdev);
-	wfx_hif_reset(wvif, false);
-	wfx_tx_policy_init(wvif);
-	if (wvif_count(wdev) <= 1)
-		wfx_hif_set_block_ack_policy(wvif, 0xFF, 0xFF);
-	wfx_tx_unlock(wdev);
-	wvif->join_in_progress = false;
-	cancel_delayed_work_sync(&wvif->beacon_loss_work);
-	wvif =  NULL;
-	while ((wvif = wvif_iterate(wdev, wvif)) != NULL)
-		wfx_update_pm(wvif);
-}
-
-int wfx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta)
-{
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-	struct wfx_sta_priv *sta_priv = (struct wfx_sta_priv *)&sta->drv_priv;
-
-	sta_priv->vif_id = wvif->id;
-
-	if (vif->type == NL80211_IFTYPE_STATION)
-		wfx_hif_set_mfp(wvif, sta->mfp, sta->mfp);
-
-	/* In station mode, the firmware interprets new link-id as a TDLS peer */
-	if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
-		return 0;
-	sta_priv->link_id = ffz(wvif->link_id_map);
-	wvif->link_id_map |= BIT(sta_priv->link_id);
-	WARN_ON(!sta_priv->link_id);
-	WARN_ON(sta_priv->link_id >= HIF_LINK_ID_MAX);
-	wfx_hif_map_link(wvif, false, sta->addr, sta_priv->link_id, sta->mfp);
-
-	return 0;
-}
-
-int wfx_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta)
-{
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-	struct wfx_sta_priv *sta_priv = (struct wfx_sta_priv *)&sta->drv_priv;
-
-	/* See note in wfx_sta_add() */
-	if (!sta_priv->link_id)
-		return 0;
-	/* FIXME add a mutex? */
-	wfx_hif_map_link(wvif, true, sta->addr, sta_priv->link_id, false);
-	wvif->link_id_map &= ~BIT(sta_priv->link_id);
-	return 0;
-}
-
-static int wfx_upload_ap_templates(struct wfx_vif *wvif)
-{
-	struct sk_buff *skb;
-
-	skb = ieee80211_beacon_get(wvif->wdev->hw, wvif->vif);
-	if (!skb)
-		return -ENOMEM;
-	wfx_hif_set_template_frame(wvif, skb, HIF_TMPLT_BCN, API_RATE_INDEX_B_1MBPS);
-	dev_kfree_skb(skb);
-
-	skb = ieee80211_proberesp_get(wvif->wdev->hw, wvif->vif);
-	if (!skb)
-		return -ENOMEM;
-	wfx_hif_set_template_frame(wvif, skb, HIF_TMPLT_PRBRES, API_RATE_INDEX_B_1MBPS);
-	dev_kfree_skb(skb);
-	return 0;
-}
-
-static void wfx_set_mfp_ap(struct wfx_vif *wvif)
-{
-	struct sk_buff *skb = ieee80211_beacon_get(wvif->wdev->hw, wvif->vif);
-	const int ieoffset = offsetof(struct ieee80211_mgmt, u.beacon.variable);
-	const u16 *ptr = (u16 *)cfg80211_find_ie(WLAN_EID_RSN, skb->data + ieoffset,
-						 skb->len - ieoffset);
-	const int pairwise_cipher_suite_count_offset = 8 / sizeof(u16);
-	const int pairwise_cipher_suite_size = 4 / sizeof(u16);
-	const int akm_suite_size = 4 / sizeof(u16);
-
-	if (ptr) {
-		ptr += pairwise_cipher_suite_count_offset;
-		if (WARN_ON(ptr > (u16 *)skb_tail_pointer(skb)))
-			return;
-		ptr += 1 + pairwise_cipher_suite_size * *ptr;
-		if (WARN_ON(ptr > (u16 *)skb_tail_pointer(skb)))
-			return;
-		ptr += 1 + akm_suite_size * *ptr;
-		if (WARN_ON(ptr > (u16 *)skb_tail_pointer(skb)))
-			return;
-		wfx_hif_set_mfp(wvif, *ptr & BIT(7), *ptr & BIT(6));
-	}
-}
-
-int wfx_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
-{
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-	struct wfx_dev *wdev = wvif->wdev;
-	int ret;
-
-	wvif =  NULL;
-	while ((wvif = wvif_iterate(wdev, wvif)) != NULL)
-		wfx_update_pm(wvif);
-	wvif = (struct wfx_vif *)vif->drv_priv;
-	wfx_upload_ap_templates(wvif);
-	ret = wfx_hif_start(wvif, &vif->bss_conf, wvif->channel);
-	if (ret > 0)
-		return -EIO;
-	wfx_set_mfp_ap(wvif);
-	return ret;
-}
-
-void wfx_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
-{
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-
-	wfx_reset(wvif);
-}
-
-static void wfx_join(struct wfx_vif *wvif)
-{
-	int ret;
-	struct ieee80211_bss_conf *conf = &wvif->vif->bss_conf;
-	struct cfg80211_bss *bss = NULL;
-	u8 ssid[IEEE80211_MAX_SSID_LEN];
-	const u8 *ssidie = NULL;
-	int ssidlen = 0;
-
-	wfx_tx_lock_flush(wvif->wdev);
-
-	bss = cfg80211_get_bss(wvif->wdev->hw->wiphy, wvif->channel, conf->bssid, NULL, 0,
-			       IEEE80211_BSS_TYPE_ANY, IEEE80211_PRIVACY_ANY);
-	if (!bss && !conf->ibss_joined) {
-		wfx_tx_unlock(wvif->wdev);
-		return;
-	}
-
-	rcu_read_lock(); /* protect ssidie */
-	if (bss)
-		ssidie = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
-	if (ssidie) {
-		ssidlen = ssidie[1];
-		if (ssidlen > IEEE80211_MAX_SSID_LEN)
-			ssidlen = IEEE80211_MAX_SSID_LEN;
-		memcpy(ssid, &ssidie[2], ssidlen);
-	}
-	rcu_read_unlock();
-
-	cfg80211_put_bss(wvif->wdev->hw->wiphy, bss);
-
-	wvif->join_in_progress = true;
-	ret = wfx_hif_join(wvif, conf, wvif->channel, ssid, ssidlen);
-	if (ret) {
-		ieee80211_connection_loss(wvif->vif);
-		wfx_reset(wvif);
-	} else {
-		/* Due to beacon filtering it is possible that the AP's beacon is not known for the
-		 * mac80211 stack.  Disable filtering temporary to make sure the stack receives at
-		 * least one
-		 */
-		wfx_filter_beacon(wvif, false);
-	}
-	wfx_tx_unlock(wvif->wdev);
-}
-
-static void wfx_join_finalize(struct wfx_vif *wvif, struct ieee80211_bss_conf *info)
-{
-	struct ieee80211_sta *sta = NULL;
-	int ampdu_density = 0;
-	bool greenfield = false;
-
-	rcu_read_lock(); /* protect sta */
-	if (info->bssid && !info->ibss_joined)
-		sta = ieee80211_find_sta(wvif->vif, info->bssid);
-	if (sta && sta->ht_cap.ht_supported)
-		ampdu_density = sta->ht_cap.ampdu_density;
-	if (sta && sta->ht_cap.ht_supported &&
-	    !(info->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT))
-		greenfield = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD);
-	rcu_read_unlock();
-
-	wvif->join_in_progress = false;
-	wfx_hif_set_association_mode(wvif, ampdu_density, greenfield, info->use_short_preamble);
-	wfx_hif_keep_alive_period(wvif, 0);
-	/* beacon_loss_count is defined to 7 in net/mac80211/mlme.c. Let's use the same value. */
-	wfx_hif_set_bss_params(wvif, info->aid, 7);
-	wfx_hif_set_beacon_wakeup_period(wvif, 1, 1);
-	wfx_update_pm(wvif);
-}
-
-int wfx_join_ibss(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
-{
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-
-	wfx_upload_ap_templates(wvif);
-	wfx_join(wvif);
-	return 0;
-}
-
-void wfx_leave_ibss(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
-{
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-
-	wfx_reset(wvif);
-}
-
-static void wfx_enable_beacon(struct wfx_vif *wvif, bool enable)
-{
-	/* Driver has Content After DTIM Beacon in queue. Driver is waiting for a signal from the
-	 * firmware. Since we are going to stop to send beacons, this signal will never happens. See
-	 * also wfx_suspend_resume_mc()
-	 */
-	if (!enable && wfx_tx_queues_has_cab(wvif)) {
-		wvif->after_dtim_tx_allowed = true;
-		wfx_bh_request_tx(wvif->wdev);
-	}
-	wfx_hif_beacon_transmit(wvif, enable);
-}
-
-void wfx_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			  struct ieee80211_bss_conf *info, u32 changed)
-{
-	struct wfx_dev *wdev = hw->priv;
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-	int i;
-
-	mutex_lock(&wdev->conf_mutex);
-
-	if (changed & BSS_CHANGED_BASIC_RATES ||
-	    changed & BSS_CHANGED_BEACON_INT ||
-	    changed & BSS_CHANGED_BSSID) {
-		if (vif->type == NL80211_IFTYPE_STATION)
-			wfx_join(wvif);
-	}
-
-	if (changed & BSS_CHANGED_ASSOC) {
-		if (info->assoc || info->ibss_joined)
-			wfx_join_finalize(wvif, info);
-		else if (!info->assoc && vif->type == NL80211_IFTYPE_STATION)
-			wfx_reset(wvif);
-		else
-			dev_warn(wdev->dev, "misunderstood change: ASSOC\n");
-	}
-
-	if (changed & BSS_CHANGED_BEACON_INFO) {
-		if (vif->type != NL80211_IFTYPE_STATION)
-			dev_warn(wdev->dev, "misunderstood change: BEACON_INFO\n");
-		wfx_hif_set_beacon_wakeup_period(wvif, info->dtim_period, info->dtim_period);
-		/* We temporary forwarded beacon for join process. It is now no more necessary. */
-		wfx_filter_beacon(wvif, true);
-	}
-
-	if (changed & BSS_CHANGED_ARP_FILTER) {
-		for (i = 0; i < HIF_MAX_ARP_IP_ADDRTABLE_ENTRIES; i++) {
-			__be32 *arp_addr = &info->arp_addr_list[i];
-
-			if (info->arp_addr_cnt > HIF_MAX_ARP_IP_ADDRTABLE_ENTRIES)
-				arp_addr = NULL;
-			if (i >= info->arp_addr_cnt)
-				arp_addr = NULL;
-			wfx_hif_set_arp_ipv4_filter(wvif, i, arp_addr);
-		}
-	}
-
-	if (changed & BSS_CHANGED_AP_PROBE_RESP || changed & BSS_CHANGED_BEACON)
-		wfx_upload_ap_templates(wvif);
-
-	if (changed & BSS_CHANGED_BEACON_ENABLED)
-		wfx_enable_beacon(wvif, info->enable_beacon);
-
-	if (changed & BSS_CHANGED_KEEP_ALIVE)
-		wfx_hif_keep_alive_period(wvif,
-					  info->max_idle_period * USEC_PER_TU / USEC_PER_MSEC);
-
-	if (changed & BSS_CHANGED_ERP_CTS_PROT)
-		wfx_hif_erp_use_protection(wvif, info->use_cts_prot);
-
-	if (changed & BSS_CHANGED_ERP_SLOT)
-		wfx_hif_slot_time(wvif, info->use_short_slot ? 9 : 20);
-
-	if (changed & BSS_CHANGED_CQM)
-		wfx_hif_set_rcpi_rssi_threshold(wvif, info->cqm_rssi_thold, info->cqm_rssi_hyst);
-
-	if (changed & BSS_CHANGED_TXPOWER)
-		wfx_hif_set_output_power(wvif, info->txpower);
-
-	if (changed & BSS_CHANGED_PS)
-		wfx_update_pm(wvif);
-
-	mutex_unlock(&wdev->conf_mutex);
-}
-
-static int wfx_update_tim(struct wfx_vif *wvif)
-{
-	struct sk_buff *skb;
-	u16 tim_offset, tim_length;
-	u8 *tim_ptr;
-
-	skb = ieee80211_beacon_get_tim(wvif->wdev->hw, wvif->vif, &tim_offset, &tim_length);
-	if (!skb)
-		return -ENOENT;
-	tim_ptr = skb->data + tim_offset;
-
-	if (tim_offset && tim_length >= 6) {
-		/* Firmware handles DTIM counter internally */
-		tim_ptr[2] = 0;
-
-		/* Set/reset aid0 bit */
-		if (wfx_tx_queues_has_cab(wvif))
-			tim_ptr[4] |= 1;
-		else
-			tim_ptr[4] &= ~1;
-	}
-
-	wfx_hif_update_ie_beacon(wvif, tim_ptr, tim_length);
-	dev_kfree_skb(skb);
-
-	return 0;
-}
-
-static void wfx_update_tim_work(struct work_struct *work)
-{
-	struct wfx_vif *wvif = container_of(work, struct wfx_vif, update_tim_work);
-
-	wfx_update_tim(wvif);
-}
-
-int wfx_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
-{
-	struct wfx_dev *wdev = hw->priv;
-	struct wfx_sta_priv *sta_dev = (struct wfx_sta_priv *)&sta->drv_priv;
-	struct wfx_vif *wvif = wdev_to_wvif(wdev, sta_dev->vif_id);
-
-	if (!wvif) {
-		dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);
-		return -EIO;
-	}
-	schedule_work(&wvif->update_tim_work);
-	return 0;
-}
-
-void wfx_suspend_resume_mc(struct wfx_vif *wvif, enum sta_notify_cmd notify_cmd)
-{
-	struct wfx_vif *wvif_it;
-
-	if (notify_cmd != STA_NOTIFY_AWAKE)
-		return;
-
-	/* Device won't be able to honor CAB if a scan is in progress on any interface. Prefer to
-	 * skip this DTIM and wait for the next one.
-	 */
-	wvif_it = NULL;
-	while ((wvif_it = wvif_iterate(wvif->wdev, wvif_it)) != NULL)
-		if (mutex_is_locked(&wvif_it->scan_lock))
-			return;
-
-	if (!wfx_tx_queues_has_cab(wvif) || wvif->after_dtim_tx_allowed)
-		dev_warn(wvif->wdev->dev, "incorrect sequence (%d CAB in queue)",
-			 wfx_tx_queues_has_cab(wvif));
-	wvif->after_dtim_tx_allowed = true;
-	wfx_bh_request_tx(wvif->wdev);
-}
-
-int wfx_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		     struct ieee80211_ampdu_params *params)
-{
-	/* Aggregation is implemented fully in firmware */
-	switch (params->action) {
-	case IEEE80211_AMPDU_RX_START:
-	case IEEE80211_AMPDU_RX_STOP:
-		/* Just acknowledge it to enable frame re-ordering */
-		return 0;
-	default:
-		/* Leave the firmware doing its business for tx aggregation */
-		return -EOPNOTSUPP;
-	}
-}
-
-int wfx_add_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *conf)
-{
-	return 0;
-}
-
-void wfx_remove_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *conf)
-{
-}
-
-void wfx_change_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *conf, u32 changed)
-{
-}
-
-int wfx_assign_vif_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			   struct ieee80211_chanctx_conf *conf)
-{
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-	struct ieee80211_channel *ch = conf->def.chan;
-
-	WARN(wvif->channel, "channel overwrite");
-	wvif->channel = ch;
-
-	return 0;
-}
-
-void wfx_unassign_vif_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			      struct ieee80211_chanctx_conf *conf)
-{
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-	struct ieee80211_channel *ch = conf->def.chan;
-
-	WARN(wvif->channel != ch, "channel mismatch");
-	wvif->channel = NULL;
-}
-
-int wfx_config(struct ieee80211_hw *hw, u32 changed)
-{
-	return 0;
-}
-
-int wfx_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
-{
-	int i;
-	struct wfx_dev *wdev = hw->priv;
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-
-	vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
-			     IEEE80211_VIF_SUPPORTS_UAPSD |
-			     IEEE80211_VIF_SUPPORTS_CQM_RSSI;
-
-	mutex_lock(&wdev->conf_mutex);
-
-	switch (vif->type) {
-	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_AP:
-		break;
-	default:
-		mutex_unlock(&wdev->conf_mutex);
-		return -EOPNOTSUPP;
-	}
-
-	/* FIXME: prefer use of container_of() to get vif */
-	wvif->vif = vif;
-	wvif->wdev = wdev;
-
-	wvif->link_id_map = 1; /* link-id 0 is reserved for multicast */
-	INIT_WORK(&wvif->update_tim_work, wfx_update_tim_work);
-	INIT_DELAYED_WORK(&wvif->beacon_loss_work, wfx_beacon_loss_work);
-
-	init_completion(&wvif->set_pm_mode_complete);
-	complete(&wvif->set_pm_mode_complete);
-	INIT_WORK(&wvif->tx_policy_upload_work, wfx_tx_policy_upload_work);
-
-	mutex_init(&wvif->scan_lock);
-	init_completion(&wvif->scan_complete);
-	INIT_WORK(&wvif->scan_work, wfx_hw_scan_work);
-
-	wfx_tx_queues_init(wvif);
-	wfx_tx_policy_init(wvif);
-
-	for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
-		if (!wdev->vif[i]) {
-			wdev->vif[i] = vif;
-			wvif->id = i;
-			break;
-		}
-	}
-	WARN(i == ARRAY_SIZE(wdev->vif), "try to instantiate more vif than supported");
-
-	wfx_hif_set_macaddr(wvif, vif->addr);
-
-	mutex_unlock(&wdev->conf_mutex);
-
-	wvif = NULL;
-	while ((wvif = wvif_iterate(wdev, wvif)) != NULL) {
-		/* Combo mode does not support Block Acks. We can re-enable them */
-		if (wvif_count(wdev) == 1)
-			wfx_hif_set_block_ack_policy(wvif, 0xFF, 0xFF);
-		else
-			wfx_hif_set_block_ack_policy(wvif, 0x00, 0x00);
-	}
-	return 0;
-}
-
-void wfx_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
-{
-	struct wfx_dev *wdev = hw->priv;
-	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
-
-	wait_for_completion_timeout(&wvif->set_pm_mode_complete, msecs_to_jiffies(300));
-	wfx_tx_queues_check_empty(wvif);
-
-	mutex_lock(&wdev->conf_mutex);
-	WARN(wvif->link_id_map != 1, "corrupted state");
-
-	wfx_hif_reset(wvif, false);
-	wfx_hif_set_macaddr(wvif, NULL);
-	wfx_tx_policy_init(wvif);
-
-	cancel_delayed_work_sync(&wvif->beacon_loss_work);
-	wdev->vif[wvif->id] = NULL;
-	wvif->vif = NULL;
-
-	mutex_unlock(&wdev->conf_mutex);
-
-	wvif = NULL;
-	while ((wvif = wvif_iterate(wdev, wvif)) != NULL) {
-		/* Combo mode does not support Block Acks. We can re-enable them */
-		if (wvif_count(wdev) == 1)
-			wfx_hif_set_block_ack_policy(wvif, 0xFF, 0xFF);
-		else
-			wfx_hif_set_block_ack_policy(wvif, 0x00, 0x00);
-	}
-}
-
-int wfx_start(struct ieee80211_hw *hw)
-{
-	return 0;
-}
-
-void wfx_stop(struct ieee80211_hw *hw)
-{
-	struct wfx_dev *wdev = hw->priv;
-
-	WARN_ON(!skb_queue_empty_lockless(&wdev->tx_pending));
-}
diff --git a/drivers/staging/wfx/sta.h b/drivers/staging/wfx/sta.h
deleted file mode 100644
index c69b2227e9ac..000000000000
--- a/drivers/staging/wfx/sta.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Implementation of mac80211 API.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- */
-#ifndef WFX_STA_H
-#define WFX_STA_H
-
-#include <net/mac80211.h>
-
-struct wfx_dev;
-struct wfx_vif;
-
-struct wfx_sta_priv {
-	int link_id;
-	int vif_id;
-};
-
-/* mac80211 interface */
-int wfx_start(struct ieee80211_hw *hw);
-void wfx_stop(struct ieee80211_hw *hw);
-int wfx_config(struct ieee80211_hw *hw, u32 changed);
-int wfx_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
-void wfx_set_default_unicast_key(struct ieee80211_hw *hw, struct ieee80211_vif *vif, int idx);
-void wfx_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
-			  unsigned int *total_flags, u64 unused);
-
-int wfx_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
-void wfx_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
-int wfx_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
-void wfx_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
-int wfx_join_ibss(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
-void wfx_leave_ibss(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
-int wfx_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		u16 queue, const struct ieee80211_tx_queue_params *params);
-void wfx_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			  struct ieee80211_bss_conf *info, u32 changed);
-int wfx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta);
-int wfx_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta);
-void wfx_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		    enum sta_notify_cmd cmd, struct ieee80211_sta *sta);
-int wfx_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set);
-int wfx_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		     struct ieee80211_ampdu_params *params);
-int wfx_add_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *conf);
-void wfx_remove_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *conf);
-void wfx_change_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *conf, u32 changed);
-int wfx_assign_vif_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			   struct ieee80211_chanctx_conf *conf);
-void wfx_unassign_vif_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			      struct ieee80211_chanctx_conf *conf);
-
-/* Hardware API Callbacks */
-void wfx_cooling_timeout_work(struct work_struct *work);
-void wfx_suspend_hot_dev(struct wfx_dev *wdev, enum sta_notify_cmd cmd);
-void wfx_suspend_resume_mc(struct wfx_vif *wvif, enum sta_notify_cmd cmd);
-void wfx_event_report_rssi(struct wfx_vif *wvif, u8 raw_rcpi_rssi);
-int wfx_update_pm(struct wfx_vif *wvif);
-
-/* Other Helpers */
-void wfx_reset(struct wfx_vif *wvif);
-u32 wfx_rate_mask_to_hw(struct wfx_dev *wdev, u32 rates);
-
-#endif
diff --git a/drivers/staging/wfx/traces.h b/drivers/staging/wfx/traces.h
deleted file mode 100644
index e011e8a46bd5..000000000000
--- a/drivers/staging/wfx/traces.h
+++ /dev/null
@@ -1,496 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Tracepoints definitions.
- *
- * Copyright (c) 2018-2020, Silicon Laboratories, Inc.
- */
-
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM wfx
-
-#if !defined(_WFX_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _WFX_TRACE_H
-
-#include <linux/tracepoint.h>
-#include <net/mac80211.h>
-
-#include "bus.h"
-#include "hif_api_cmd.h"
-#include "hif_api_mib.h"
-
-/* The hell below need some explanations. For each symbolic number, we need to define it with
- * TRACE_DEFINE_ENUM() and in a list for __print_symbolic.
- *
- *   1. Define a new macro that call TRACE_DEFINE_ENUM():
- *
- *          #define xxx_name(sym) TRACE_DEFINE_ENUM(sym);
- *
- *   2. Define list of all symbols:
- *
- *          #define list_names     \
- *             ...                 \
- *             xxx_name(XXX)       \
- *             ...
- *
- *   3. Instantiate that list_names:
- *
- *          list_names
- *
- *   4. Redefine xxx_name() as an entry of array for __print_symbolic()
- *
- *          #undef xxx_name
- *          #define xxx_name(msg) { msg, #msg },
- *
- *   5. list_name can now nearly be used with __print_symbolic() but, __print_symbolic() dislike
- *      last comma of list. So we define a new list with a dummy element:
- *
- *          #define list_for_print_symbolic list_names { -1, NULL }
- */
-
-#define _hif_msg_list                       \
-	hif_cnf_name(ADD_KEY)               \
-	hif_cnf_name(BEACON_TRANSMIT)       \
-	hif_cnf_name(EDCA_QUEUE_PARAMS)     \
-	hif_cnf_name(JOIN)                  \
-	hif_cnf_name(MAP_LINK)              \
-	hif_cnf_name(READ_MIB)              \
-	hif_cnf_name(REMOVE_KEY)            \
-	hif_cnf_name(RESET)                 \
-	hif_cnf_name(SET_BSS_PARAMS)        \
-	hif_cnf_name(SET_PM_MODE)           \
-	hif_cnf_name(START)                 \
-	hif_cnf_name(START_SCAN)            \
-	hif_cnf_name(STOP_SCAN)             \
-	hif_cnf_name(TX)                    \
-	hif_cnf_name(MULTI_TRANSMIT)        \
-	hif_cnf_name(UPDATE_IE)             \
-	hif_cnf_name(WRITE_MIB)             \
-	hif_cnf_name(CONFIGURATION)         \
-	hif_cnf_name(CONTROL_GPIO)          \
-	hif_cnf_name(PREVENT_ROLLBACK)      \
-	hif_cnf_name(SET_SL_MAC_KEY)        \
-	hif_cnf_name(SL_CONFIGURE)          \
-	hif_cnf_name(SL_EXCHANGE_PUB_KEYS)  \
-	hif_cnf_name(SHUT_DOWN)             \
-	hif_ind_name(EVENT)                 \
-	hif_ind_name(JOIN_COMPLETE)         \
-	hif_ind_name(RX)                    \
-	hif_ind_name(SCAN_CMPL)             \
-	hif_ind_name(SET_PM_MODE_CMPL)      \
-	hif_ind_name(SUSPEND_RESUME_TX)     \
-	hif_ind_name(SL_EXCHANGE_PUB_KEYS)  \
-	hif_ind_name(ERROR)                 \
-	hif_ind_name(EXCEPTION)             \
-	hif_ind_name(GENERIC)               \
-	hif_ind_name(WAKEUP)                \
-	hif_ind_name(STARTUP)
-
-#define hif_msg_list_enum _hif_msg_list
-
-#undef hif_cnf_name
-#undef hif_ind_name
-#define hif_cnf_name(msg) TRACE_DEFINE_ENUM(HIF_CNF_ID_##msg);
-#define hif_ind_name(msg) TRACE_DEFINE_ENUM(HIF_IND_ID_##msg);
-hif_msg_list_enum
-#undef hif_cnf_name
-#undef hif_ind_name
-#define hif_cnf_name(msg) { HIF_CNF_ID_##msg, #msg },
-#define hif_ind_name(msg) { HIF_IND_ID_##msg, #msg },
-#define hif_msg_list hif_msg_list_enum { -1, NULL }
-
-#define _hif_mib_list                                \
-	hif_mib_name(ARP_IP_ADDRESSES_TABLE)         \
-	hif_mib_name(ARP_KEEP_ALIVE_PERIOD)          \
-	hif_mib_name(BEACON_FILTER_ENABLE)           \
-	hif_mib_name(BEACON_FILTER_TABLE)            \
-	hif_mib_name(BEACON_STATS)                   \
-	hif_mib_name(BEACON_WAKEUP_PERIOD)           \
-	hif_mib_name(BLOCK_ACK_POLICY)               \
-	hif_mib_name(CCA_CONFIG)                     \
-	hif_mib_name(CONFIG_DATA_FILTER)             \
-	hif_mib_name(COUNTERS_TABLE)                 \
-	hif_mib_name(CURRENT_TX_POWER_LEVEL)         \
-	hif_mib_name(DOT11_MAC_ADDRESS)              \
-	hif_mib_name(DOT11_MAX_RECEIVE_LIFETIME)     \
-	hif_mib_name(DOT11_MAX_TRANSMIT_MSDU_LIFETIME) \
-	hif_mib_name(DOT11_RTS_THRESHOLD)            \
-	hif_mib_name(DOT11_WEP_DEFAULT_KEY_ID)       \
-	hif_mib_name(ETHERTYPE_DATAFRAME_CONDITION)  \
-	hif_mib_name(EXTENDED_COUNTERS_TABLE)        \
-	hif_mib_name(GL_BLOCK_ACK_INFO)              \
-	hif_mib_name(GL_OPERATIONAL_POWER_MODE)      \
-	hif_mib_name(GL_SET_MULTI_MSG)               \
-	hif_mib_name(GRP_SEQ_COUNTER)                \
-	hif_mib_name(INACTIVITY_TIMER)               \
-	hif_mib_name(INTERFACE_PROTECTION)           \
-	hif_mib_name(IPV4_ADDR_DATAFRAME_CONDITION)  \
-	hif_mib_name(IPV6_ADDR_DATAFRAME_CONDITION)  \
-	hif_mib_name(KEEP_ALIVE_PERIOD)              \
-	hif_mib_name(MAC_ADDR_DATAFRAME_CONDITION)   \
-	hif_mib_name(MAGIC_DATAFRAME_CONDITION)      \
-	hif_mib_name(MAX_TX_POWER_LEVEL)             \
-	hif_mib_name(NON_ERP_PROTECTION)             \
-	hif_mib_name(NS_IP_ADDRESSES_TABLE)          \
-	hif_mib_name(OVERRIDE_INTERNAL_TX_RATE)      \
-	hif_mib_name(PORT_DATAFRAME_CONDITION)       \
-	hif_mib_name(PROTECTED_MGMT_POLICY)          \
-	hif_mib_name(RCPI_RSSI_THRESHOLD)            \
-	hif_mib_name(RX_FILTER)                      \
-	hif_mib_name(SET_ASSOCIATION_MODE)           \
-	hif_mib_name(SET_DATA_FILTERING)             \
-	hif_mib_name(SET_HT_PROTECTION)              \
-	hif_mib_name(SET_TX_RATE_RETRY_POLICY)       \
-	hif_mib_name(SET_UAPSD_INFORMATION)          \
-	hif_mib_name(SLOT_TIME)                      \
-	hif_mib_name(STATISTICS_TABLE)               \
-	hif_mib_name(TEMPLATE_FRAME)                 \
-	hif_mib_name(TSF_COUNTER)                    \
-	hif_mib_name(UC_MC_BC_DATAFRAME_CONDITION)
-
-#define hif_mib_list_enum _hif_mib_list
-
-#undef hif_mib_name
-#define hif_mib_name(mib) TRACE_DEFINE_ENUM(HIF_MIB_ID_##mib);
-hif_mib_list_enum
-#undef hif_mib_name
-#define hif_mib_name(mib) { HIF_MIB_ID_##mib, #mib },
-#define hif_mib_list hif_mib_list_enum { -1, NULL }
-
-DECLARE_EVENT_CLASS(hif_data,
-	TP_PROTO(const struct wfx_hif_msg *hif, int tx_fill_level, bool is_recv),
-	TP_ARGS(hif, tx_fill_level, is_recv),
-	TP_STRUCT__entry(
-		__field(int, tx_fill_level)
-		__field(int, msg_id)
-		__field(const char *, msg_type)
-		__field(int, msg_len)
-		__field(int, buf_len)
-		__field(int, if_id)
-		__field(int, mib)
-		__array(u8, buf, 128)
-	),
-	TP_fast_assign(
-		int header_len;
-
-		__entry->tx_fill_level = tx_fill_level;
-		__entry->msg_len = le16_to_cpu(hif->len);
-		__entry->msg_id = hif->id;
-		__entry->if_id = hif->interface;
-		if (is_recv)
-			__entry->msg_type = __entry->msg_id & 0x80 ? "IND" : "CNF";
-		else
-			__entry->msg_type = "REQ";
-		if (!is_recv &&
-		    (__entry->msg_id == HIF_REQ_ID_READ_MIB ||
-		     __entry->msg_id == HIF_REQ_ID_WRITE_MIB)) {
-			__entry->mib = le16_to_cpup((__le16 *)hif->body);
-			header_len = 4;
-		} else {
-			__entry->mib = -1;
-			header_len = 0;
-		}
-		__entry->buf_len = min_t(int, __entry->msg_len, sizeof(__entry->buf))
-				   - sizeof(struct wfx_hif_msg) - header_len;
-		memcpy(__entry->buf, hif->body + header_len, __entry->buf_len);
-	),
-	TP_printk("%d:%d:%s_%s%s%s: %s%s (%d bytes)",
-		__entry->tx_fill_level,
-		__entry->if_id,
-		__entry->msg_type,
-		__print_symbolic(__entry->msg_id, hif_msg_list),
-		__entry->mib != -1 ? "/" : "",
-		__entry->mib != -1 ? __print_symbolic(__entry->mib, hif_mib_list) : "",
-		__print_hex(__entry->buf, __entry->buf_len),
-		__entry->msg_len > sizeof(__entry->buf) ? " ..." : "",
-		__entry->msg_len
-	)
-);
-DEFINE_EVENT(hif_data, hif_send,
-	TP_PROTO(const struct wfx_hif_msg *hif, int tx_fill_level, bool is_recv),
-	TP_ARGS(hif, tx_fill_level, is_recv));
-#define _trace_hif_send(hif, tx_fill_level)\
-	trace_hif_send(hif, tx_fill_level, false)
-DEFINE_EVENT(hif_data, hif_recv,
-	TP_PROTO(const struct wfx_hif_msg *hif, int tx_fill_level, bool is_recv),
-	TP_ARGS(hif, tx_fill_level, is_recv));
-#define _trace_hif_recv(hif, tx_fill_level)\
-	trace_hif_recv(hif, tx_fill_level, true)
-
-#define wfx_reg_list_enum                                 \
-	wfx_reg_name(WFX_REG_CONFIG,       "CONFIG")      \
-	wfx_reg_name(WFX_REG_CONTROL,      "CONTROL")     \
-	wfx_reg_name(WFX_REG_IN_OUT_QUEUE, "QUEUE")       \
-	wfx_reg_name(WFX_REG_AHB_DPORT,    "AHB")         \
-	wfx_reg_name(WFX_REG_BASE_ADDR,    "BASE_ADDR")   \
-	wfx_reg_name(WFX_REG_SRAM_DPORT,   "SRAM")        \
-	wfx_reg_name(WFX_REG_SET_GEN_R_W,  "SET_GEN_R_W") \
-	wfx_reg_name(WFX_REG_FRAME_OUT,    "FRAME_OUT")
-
-#undef wfx_reg_name
-#define wfx_reg_name(sym, name) TRACE_DEFINE_ENUM(sym);
-wfx_reg_list_enum
-#undef wfx_reg_name
-#define wfx_reg_name(sym, name) { sym, name },
-#define wfx_reg_list wfx_reg_list_enum { -1, NULL }
-
-DECLARE_EVENT_CLASS(io_data,
-	TP_PROTO(int reg, int addr, const void *io_buf, size_t len),
-	TP_ARGS(reg, addr, io_buf, len),
-	TP_STRUCT__entry(
-		__field(int, reg)
-		__field(int, addr)
-		__field(int, msg_len)
-		__field(int, buf_len)
-		__array(u8, buf, 32)
-		__array(u8, addr_str, 10)
-	),
-	TP_fast_assign(
-		__entry->reg = reg;
-		__entry->addr = addr;
-		__entry->msg_len = len;
-		__entry->buf_len = min_t(int, sizeof(__entry->buf), __entry->msg_len);
-		memcpy(__entry->buf, io_buf, __entry->buf_len);
-		if (addr >= 0)
-			snprintf(__entry->addr_str, 10, "/%08x", addr);
-		else
-			__entry->addr_str[0] = 0;
-	),
-	TP_printk("%s%s: %s%s (%d bytes)",
-		__print_symbolic(__entry->reg, wfx_reg_list),
-		__entry->addr_str,
-		__print_hex(__entry->buf, __entry->buf_len),
-		__entry->msg_len > sizeof(__entry->buf) ? " ..." : "",
-		__entry->msg_len
-	)
-);
-DEFINE_EVENT(io_data, io_write,
-	TP_PROTO(int reg, int addr, const void *io_buf, size_t len),
-	TP_ARGS(reg, addr, io_buf, len));
-#define _trace_io_ind_write(reg, addr, io_buf, len)\
-	trace_io_write(reg, addr, io_buf, len)
-#define _trace_io_write(reg, io_buf, len) trace_io_write(reg, -1, io_buf, len)
-DEFINE_EVENT(io_data, io_read,
-	TP_PROTO(int reg, int addr, const void *io_buf, size_t len),
-	TP_ARGS(reg, addr, io_buf, len));
-#define _trace_io_ind_read(reg, addr, io_buf, len)\
-	trace_io_read(reg, addr, io_buf, len)
-#define _trace_io_read(reg, io_buf, len) trace_io_read(reg, -1, io_buf, len)
-
-DECLARE_EVENT_CLASS(io_data32,
-	TP_PROTO(int reg, int addr, u32 val),
-	TP_ARGS(reg, addr, val),
-	TP_STRUCT__entry(
-		__field(int, reg)
-		__field(int, addr)
-		__field(int, val)
-		__array(u8, addr_str, 10)
-	),
-	TP_fast_assign(
-		__entry->reg = reg;
-		__entry->addr = addr;
-		__entry->val = val;
-		if (addr >= 0)
-			snprintf(__entry->addr_str, 10, "/%08x", addr);
-		else
-			__entry->addr_str[0] = 0;
-	),
-	TP_printk("%s%s: %08x",
-		__print_symbolic(__entry->reg, wfx_reg_list),
-		__entry->addr_str,
-		__entry->val
-	)
-);
-DEFINE_EVENT(io_data32, io_write32,
-	TP_PROTO(int reg, int addr, u32 val),
-	TP_ARGS(reg, addr, val));
-#define _trace_io_ind_write32(reg, addr, val) trace_io_write32(reg, addr, val)
-#define _trace_io_write32(reg, val) trace_io_write32(reg, -1, val)
-DEFINE_EVENT(io_data32, io_read32,
-	TP_PROTO(int reg, int addr, u32 val),
-	TP_ARGS(reg, addr, val));
-#define _trace_io_ind_read32(reg, addr, val) trace_io_read32(reg, addr, val)
-#define _trace_io_read32(reg, val) trace_io_read32(reg, -1, val)
-
-DECLARE_EVENT_CLASS(piggyback,
-	TP_PROTO(u32 val, bool ignored),
-	TP_ARGS(val, ignored),
-	TP_STRUCT__entry(
-		__field(int, val)
-		__field(bool, ignored)
-	),
-	TP_fast_assign(
-		__entry->val = val;
-		__entry->ignored = ignored;
-	),
-	TP_printk("CONTROL: %08x%s",
-		__entry->val,
-		__entry->ignored ? " (ignored)" : ""
-	)
-);
-DEFINE_EVENT(piggyback, piggyback,
-	TP_PROTO(u32 val, bool ignored),
-	TP_ARGS(val, ignored));
-#define _trace_piggyback(val, ignored) trace_piggyback(val, ignored)
-
-TRACE_EVENT(bh_stats,
-	TP_PROTO(int ind, int req, int cnf, int busy, bool release),
-	TP_ARGS(ind, req, cnf, busy, release),
-	TP_STRUCT__entry(
-		__field(int, ind)
-		__field(int, req)
-		__field(int, cnf)
-		__field(int, busy)
-		__field(bool, release)
-	),
-	TP_fast_assign(
-		__entry->ind = ind;
-		__entry->req = req;
-		__entry->cnf = cnf;
-		__entry->busy = busy;
-		__entry->release = release;
-	),
-	TP_printk("IND/REQ/CNF:%3d/%3d/%3d, REQ in progress:%3d, WUP: %s",
-		__entry->ind,
-		__entry->req,
-		__entry->cnf,
-		__entry->busy,
-		__entry->release ? "release" : "keep"
-	)
-);
-#define _trace_bh_stats(ind, req, cnf, busy, release)\
-	trace_bh_stats(ind, req, cnf, busy, release)
-
-TRACE_EVENT(tx_stats,
-	TP_PROTO(const struct wfx_hif_cnf_tx *tx_cnf, const struct sk_buff *skb,
-		 int delay),
-	TP_ARGS(tx_cnf, skb, delay),
-	TP_STRUCT__entry(
-		__field(int, pkt_id)
-		__field(int, delay_media)
-		__field(int, delay_queue)
-		__field(int, delay_fw)
-		__field(int, ack_failures)
-		__field(int, flags)
-		__array(int, rate, 4)
-		__array(int, tx_count, 4)
-	),
-	TP_fast_assign(
-		/* Keep sync with wfx_rates definition in main.c */
-		static const int hw_rate[] = { 0, 1, 2, 3, 6, 7, 8, 9, 10, 11, 12, 13 };
-		const struct ieee80211_tx_info *tx_info =
-			(const struct ieee80211_tx_info *)skb->cb;
-		const struct ieee80211_tx_rate *rates = tx_info->driver_rates;
-		int i;
-
-		__entry->pkt_id = tx_cnf->packet_id;
-		__entry->delay_media = le32_to_cpu(tx_cnf->media_delay);
-		__entry->delay_queue = le32_to_cpu(tx_cnf->tx_queue_delay);
-		__entry->delay_fw = delay;
-		__entry->ack_failures = tx_cnf->ack_failures;
-		if (!tx_cnf->status || __entry->ack_failures)
-			__entry->ack_failures += 1;
-
-		for (i = 0; i < IEEE80211_NUM_ACS; i++) {
-			if (rates[0].flags & IEEE80211_TX_RC_MCS)
-				__entry->rate[i] = rates[i].idx;
-			else
-				__entry->rate[i] = hw_rate[rates[i].idx];
-			__entry->tx_count[i] = rates[i].count;
-		}
-		__entry->flags = 0;
-		if (rates[0].flags & IEEE80211_TX_RC_MCS)
-			__entry->flags |= 0x01;
-		if (rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
-			__entry->flags |= 0x02;
-		if (rates[0].flags & IEEE80211_TX_RC_GREEN_FIELD)
-			__entry->flags |= 0x04;
-		if (rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
-			__entry->flags |= 0x08;
-		if (tx_info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM)
-			__entry->flags |= 0x10;
-		if (tx_cnf->status)
-			__entry->flags |= 0x20;
-		if (tx_cnf->status == HIF_STATUS_TX_FAIL_REQUEUE)
-			__entry->flags |= 0x40;
-	),
-	TP_printk("packet ID: %08x, rate policy: %s %d|%d %d|%d %d|%d %d|%d -> %d attempt, Delays media/queue/total: %4dus/%4dus/%4dus",
-		__entry->pkt_id,
-		__print_flags(__entry->flags, NULL,
-			{ 0x01, "M" }, { 0x02, "S" }, { 0x04, "G" }, { 0x08, "R" },
-			{ 0x10, "D" }, { 0x20, "F" }, { 0x40, "Q" }),
-		__entry->rate[0],
-		__entry->tx_count[0],
-		__entry->rate[1],
-		__entry->tx_count[1],
-		__entry->rate[2],
-		__entry->tx_count[2],
-		__entry->rate[3],
-		__entry->tx_count[3],
-		__entry->ack_failures,
-		__entry->delay_media,
-		__entry->delay_queue,
-		__entry->delay_fw
-	)
-);
-#define _trace_tx_stats(tx_cnf, skb, delay) trace_tx_stats(tx_cnf, skb, delay)
-
-TRACE_EVENT(queues_stats,
-	TP_PROTO(struct wfx_dev *wdev, const struct wfx_queue *elected_queue),
-	TP_ARGS(wdev, elected_queue),
-	TP_STRUCT__entry(
-		__field(int, vif_id)
-		__field(int, queue_id)
-		__array(int, hw, IEEE80211_NUM_ACS * 2)
-		__array(int, drv, IEEE80211_NUM_ACS * 2)
-		__array(int, cab, IEEE80211_NUM_ACS * 2)
-	),
-	TP_fast_assign(
-		const struct wfx_queue *queue;
-		struct wfx_vif *wvif;
-		int i, j;
-
-		for (j = 0; j < IEEE80211_NUM_ACS * 2; j++) {
-			__entry->hw[j] = -1;
-			__entry->drv[j] = -1;
-			__entry->cab[j] = -1;
-		}
-		__entry->vif_id = -1;
-		__entry->queue_id = -1;
-		wvif = NULL;
-		while ((wvif = wvif_iterate(wdev, wvif)) != NULL) {
-			for (i = 0; i < IEEE80211_NUM_ACS; i++) {
-				j = wvif->id * IEEE80211_NUM_ACS + i;
-				WARN_ON(j >= IEEE80211_NUM_ACS * 2);
-				queue = &wvif->tx_queue[i];
-				__entry->hw[j] = atomic_read(&queue->pending_frames);
-				__entry->drv[j] = skb_queue_len(&queue->normal);
-				__entry->cab[j] = skb_queue_len(&queue->cab);
-				if (queue == elected_queue) {
-					__entry->vif_id = wvif->id;
-					__entry->queue_id = i;
-				}
-			}
-		}
-	),
-	TP_printk("got skb from %d/%d, pend. hw/norm/cab: [ %d/%d/%d %d/%d/%d %d/%d/%d %d/%d/%d ] [ %d/%d/%d %d/%d/%d %d/%d/%d %d/%d/%d ]",
-		__entry->vif_id, __entry->queue_id,
-		__entry->hw[0], __entry->drv[0], __entry->cab[0],
-		__entry->hw[1], __entry->drv[1], __entry->cab[1],
-		__entry->hw[2], __entry->drv[2], __entry->cab[2],
-		__entry->hw[3], __entry->drv[3], __entry->cab[3],
-		__entry->hw[4], __entry->drv[4], __entry->cab[4],
-		__entry->hw[5], __entry->drv[5], __entry->cab[5],
-		__entry->hw[6], __entry->drv[6], __entry->cab[6],
-		__entry->hw[7], __entry->drv[7], __entry->cab[7]
-	)
-);
-
-#endif
-
-/* This part must be outside protection */
-#undef TRACE_INCLUDE_PATH
-#define TRACE_INCLUDE_PATH .
-#undef TRACE_INCLUDE_FILE
-#define TRACE_INCLUDE_FILE traces
-
-#include <trace/define_trace.h>
diff --git a/drivers/staging/wfx/wfx.h b/drivers/staging/wfx/wfx.h
deleted file mode 100644
index 6594cc647c2f..000000000000
--- a/drivers/staging/wfx/wfx.h
+++ /dev/null
@@ -1,162 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Common private data.
- *
- * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
- * Copyright (c) 2010, ST-Ericsson
- * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
- * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
- */
-#ifndef WFX_H
-#define WFX_H
-
-#include <linux/completion.h>
-#include <linux/workqueue.h>
-#include <linux/mutex.h>
-#include <linux/nospec.h>
-#include <net/mac80211.h>
-
-#include "bh.h"
-#include "data_tx.h"
-#include "main.h"
-#include "queue.h"
-#include "hif_tx.h"
-
-#define USEC_PER_TXOP 32 /* see struct ieee80211_tx_queue_params */
-#define USEC_PER_TU 1024
-
-struct wfx_hwbus_ops;
-
-struct wfx_dev {
-	struct wfx_platform_data   pdata;
-	struct device              *dev;
-	struct ieee80211_hw        *hw;
-	struct ieee80211_vif       *vif[2];
-	struct mac_address         addresses[2];
-	const struct wfx_hwbus_ops *hwbus_ops;
-	void                       *hwbus_priv;
-
-	u8                         keyset;
-	struct completion          firmware_ready;
-	struct wfx_hif_ind_startup hw_caps;
-	struct wfx_hif             hif;
-	struct delayed_work        cooling_timeout_work;
-	bool                       poll_irq;
-	bool                       chip_frozen;
-	struct mutex               conf_mutex;
-
-	struct wfx_hif_cmd         hif_cmd;
-	struct sk_buff_head        tx_pending;
-	wait_queue_head_t          tx_dequeue;
-	atomic_t                   tx_lock;
-
-	atomic_t                   packet_id;
-	u32                        key_map;
-
-	struct wfx_hif_rx_stats    rx_stats;
-	struct mutex               rx_stats_lock;
-	struct wfx_hif_tx_power_loop_info tx_power_loop_info;
-	struct mutex               tx_power_loop_info_lock;
-};
-
-struct wfx_vif {
-	struct wfx_dev             *wdev;
-	struct ieee80211_vif       *vif;
-	struct ieee80211_channel   *channel;
-	int                        id;
-
-	u32                        link_id_map;
-
-	bool                       after_dtim_tx_allowed;
-	bool                       join_in_progress;
-
-	struct delayed_work        beacon_loss_work;
-
-	struct wfx_queue           tx_queue[4];
-	struct wfx_tx_policy_cache tx_policy_cache;
-	struct work_struct         tx_policy_upload_work;
-
-	struct work_struct         update_tim_work;
-
-	unsigned long              uapsd_mask;
-
-	/* avoid some operations in parallel with scan */
-	struct mutex               scan_lock;
-	struct work_struct         scan_work;
-	struct completion          scan_complete;
-	int                        scan_nb_chan_done;
-	bool                       scan_abort;
-	struct ieee80211_scan_request *scan_req;
-
-	struct completion          set_pm_mode_complete;
-};
-
-static inline struct wfx_vif *wdev_to_wvif(struct wfx_dev *wdev, int vif_id)
-{
-	if (vif_id >= ARRAY_SIZE(wdev->vif)) {
-		dev_dbg(wdev->dev, "requesting non-existent vif: %d\n", vif_id);
-		return NULL;
-	}
-	vif_id = array_index_nospec(vif_id, ARRAY_SIZE(wdev->vif));
-	if (!wdev->vif[vif_id])
-		return NULL;
-	return (struct wfx_vif *)wdev->vif[vif_id]->drv_priv;
-}
-
-static inline struct wfx_vif *wvif_iterate(struct wfx_dev *wdev, struct wfx_vif *cur)
-{
-	int i;
-	int mark = 0;
-	struct wfx_vif *tmp;
-
-	if (!cur)
-		mark = 1;
-	for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
-		tmp = wdev_to_wvif(wdev, i);
-		if (mark && tmp)
-			return tmp;
-		if (tmp == cur)
-			mark = 1;
-	}
-	return NULL;
-}
-
-static inline int wvif_count(struct wfx_dev *wdev)
-{
-	int i;
-	int ret = 0;
-	struct wfx_vif *wvif;
-
-	for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
-		wvif = wdev_to_wvif(wdev, i);
-		if (wvif)
-			ret++;
-	}
-	return ret;
-}
-
-static inline void memreverse(u8 *src, u8 length)
-{
-	u8 *lo = src;
-	u8 *hi = src + length - 1;
-	u8 swap;
-
-	while (lo < hi) {
-		swap = *lo;
-		*lo++ = *hi;
-		*hi-- = swap;
-	}
-}
-
-static inline int memzcmp(void *src, unsigned int size)
-{
-	u8 *buf = src;
-
-	if (!size)
-		return 0;
-	if (*buf)
-		return 1;
-	return memcmp(buf, buf + 1, size - 1);
-}
-
-#endif