[PATCH RFC v3 0/6] wifi: ath12k: switch to using wiphy_lock()

[PATCH RFC v3 0/6] wifi: ath12k: switch to using wiphy_lock()

[Kalle Valo]

From: Kalle Valo <quic_kvalo@quicinc.com>

Convert all uses of struct ath12k::conf_mutex to use struct wiphy::mtx, which
is already used by mac80211, and remove conf_mutex from ath12k. This way we
have one mutex less in ath12k and simpler locking design.

I'm submitting this as RFC as I have only tested these patches and need
to investigate how this affects MLO implementation.

v3:

* new patch: wifi: ath12k: fix atomic calls in ath12k_mac_op_set_bitrate_mask()

* new patch: wifi: ath12k: ath12k_mac_op_sta_state(): clean up update_wk cancellation

* patch 3: ath12k_core_post_reconfigure_recovery(): take wiphy lock before hw_mutex to
  avoid a lockdep warning

* patch 3: ath12k_sta_rc_update_wk(): remove extra wiphy_lock() calls

* patch 3: update commit message, especially remove the sparse warning which was already fixed

* rebase to ath-202409191620

v2: https://patchwork.kernel.org/project/linux-wireless/cover/20240918181042.91891-1-kvalo@kernel.org/

* rebase to ath-202409051620

* patch 1: ath12k_wow_op_suspend(): remove extra wiphy_lock()/unlock() (Baochen)

* patch 1: fix clang warnings about unused labels (Johannes)

* patch 2: s/no/now/ (Jeff)

* patch 4: ath12k_sta_rc_update_wk(): fix wiphy_priv() usage

v1: https://patchwork.kernel.org/project/linux-wireless/cover/20240821153728.2121600-1-kvalo@kernel.org/

Kalle Valo (6):
  wifi: ath12k: fix atomic calls in ath12k_mac_op_set_bitrate_mask()
  wifi: ath12k: convert struct ath12k_sta::update_wk to use struct
    wiphy_work
  wifi: ath12k: switch to using wiphy_lock() and remove ar->conf_mutex
  wifi: ath12k: cleanup unneeded labels
  wifi: ath12k: ath12k_mac_op_set_key(): remove exit label
  wifi: ath12k: ath12k_mac_op_sta_state(): clean up update_wk
    cancellation

 drivers/net/wireless/ath/ath12k/core.c        |   7 +-
 drivers/net/wireless/ath/ath12k/core.h        |   7 +-
 drivers/net/wireless/ath/ath12k/debugfs.c     |   4 +-
 .../wireless/ath/ath12k/debugfs_htt_stats.c   |  26 +-
 drivers/net/wireless/ath/ath12k/mac.c         | 388 +++++++-----------
 drivers/net/wireless/ath/ath12k/peer.c        |   6 +-
 drivers/net/wireless/ath/ath12k/wow.c         |  26 +-
 7 files changed, 192 insertions(+), 272 deletions(-)


base-commit: d35bb26e150d7fb7434959fad9fcaeaac99906e6
-- 
2.39.5

[PATCH RFC v3 1/6] wifi: ath12k: fix atomic calls in ath12k_mac_op_set_bitrate_mask()

[Kalle Valo]

From: Kalle Valo <quic_kvalo@quicinc.com>

When I try to manually set bitrates:

iw wlan0 set bitrates legacy-2.4 1

I get sleeping from invalid context error, see below. Fix that by switching to
use recently introduced ieee80211_iterate_stations_mtx().

Do note that WCN6855 firmware is still crashing, I'm not sure if that firmware
even supports bitrate WMI commands and should we consider disabling
ath12k_mac_op_set_bitrate_mask() for WCN6855? But that's for another patch.

BUG: sleeping function called from invalid context at drivers/net/wireless/ath/ath12k/wmi.c:420
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 2236, name: iw
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by iw/2236:
 #0: ffffffffabc6f1d8 (cb_lock){++++}-{3:3}, at: genl_rcv+0x14/0x40
 #1: ffff888138410810 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: nl80211_pre_doit+0x54d/0x800 [cfg80211]
 #2: ffffffffab2cfaa0 (rcu_read_lock){....}-{1:2}, at: ieee80211_iterate_stations_atomic+0x2f/0x200 [mac80211]
CPU: 3 UID: 0 PID: 2236 Comm: iw Not tainted 6.11.0-rc7-wt-ath+ #1772
Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0067.2021.0528.1339 05/28/2021
Call Trace:
 <TASK>
 dump_stack_lvl+0xa4/0xe0
 dump_stack+0x10/0x20
 __might_resched+0x363/0x5a0
 ? __alloc_skb+0x165/0x340
 __might_sleep+0xad/0x160
 ath12k_wmi_cmd_send+0xb1/0x3d0 [ath12k]
 ? ath12k_wmi_init_wcn7850+0xa40/0xa40 [ath12k]
 ? __netdev_alloc_skb+0x45/0x7b0
 ? __asan_memset+0x39/0x40
 ? ath12k_wmi_alloc_skb+0xf0/0x150 [ath12k]
 ? reacquire_held_locks+0x4d0/0x4d0
 ath12k_wmi_set_peer_param+0x340/0x5b0 [ath12k]
 ath12k_mac_disable_peer_fixed_rate+0xa3/0x110 [ath12k]
 ? ath12k_mac_vdev_stop+0x4f0/0x4f0 [ath12k]
 ieee80211_iterate_stations_atomic+0xd4/0x200 [mac80211]
 ath12k_mac_op_set_bitrate_mask+0x5d2/0x1080 [ath12k]
 ? ath12k_mac_vif_chan+0x320/0x320 [ath12k]
 drv_set_bitrate_mask+0x267/0x470 [mac80211]
 ieee80211_set_bitrate_mask+0x4cc/0x8a0 [mac80211]
 ? __this_cpu_preempt_check+0x13/0x20
 nl80211_set_tx_bitrate_mask+0x2bc/0x530 [cfg80211]
 ? nl80211_parse_tx_bitrate_mask+0x2320/0x2320 [cfg80211]
 ? trace_contention_end+0xef/0x140
 ? rtnl_unlock+0x9/0x10
 ? nl80211_pre_doit+0x557/0x800 [cfg80211]
 genl_family_rcv_msg_doit+0x1f0/0x2e0
 ? genl_family_rcv_msg_attrs_parse.isra.0+0x250/0x250
 ? ns_capable+0x57/0xd0
 genl_family_rcv_msg+0x34c/0x600
 ? genl_family_rcv_msg_dumpit+0x310/0x310
 ? __lock_acquire+0xc62/0x1de0
 ? he_set_mcs_mask.isra.0+0x8d0/0x8d0 [cfg80211]
 ? nl80211_parse_tx_bitrate_mask+0x2320/0x2320 [cfg80211]
 ? cfg80211_external_auth_request+0x690/0x690 [cfg80211]
 genl_rcv_msg+0xa0/0x130
 netlink_rcv_skb+0x14c/0x400
 ? genl_family_rcv_msg+0x600/0x600
 ? netlink_ack+0xd70/0xd70
 ? rwsem_optimistic_spin+0x4f0/0x4f0
 ? genl_rcv+0x14/0x40
 ? down_read_killable+0x580/0x580
 ? netlink_deliver_tap+0x13e/0x350
 ? __this_cpu_preempt_check+0x13/0x20
 genl_rcv+0x23/0x40
 netlink_unicast+0x45e/0x790
 ? netlink_attachskb+0x7f0/0x7f0
 netlink_sendmsg+0x7eb/0xdb0
 ? netlink_unicast+0x790/0x790
 ? __this_cpu_preempt_check+0x13/0x20
 ? selinux_socket_sendmsg+0x31/0x40
 ? netlink_unicast+0x790/0x790
 __sock_sendmsg+0xc9/0x160
 ____sys_sendmsg+0x620/0x990
 ? kernel_sendmsg+0x30/0x30
 ? __copy_msghdr+0x410/0x410
 ? __kasan_check_read+0x11/0x20
 ? mark_lock+0xe6/0x1470
 ___sys_sendmsg+0xe9/0x170
 ? copy_msghdr_from_user+0x120/0x120
 ? __lock_acquire+0xc62/0x1de0
 ? do_fault_around+0x2c6/0x4e0
 ? do_user_addr_fault+0x8c1/0xde0
 ? reacquire_held_locks+0x220/0x4d0
 ? do_user_addr_fault+0x8c1/0xde0
 ? __kasan_check_read+0x11/0x20
 ? __fdget+0x4e/0x1d0
 ? sockfd_lookup_light+0x1a/0x170
 __sys_sendmsg+0xd2/0x180
 ? __sys_sendmsg_sock+0x20/0x20
 ? reacquire_held_locks+0x4d0/0x4d0
 ? debug_smp_processor_id+0x17/0x20
 __x64_sys_sendmsg+0x72/0xb0
 ? lockdep_hardirqs_on+0x7d/0x100
 x64_sys_call+0x894/0x9f0
 do_syscall_64+0x64/0x130
 entry_SYSCALL_64_after_hwframe+0x4b/0x53
RIP: 0033:0x7f230fe04807
Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
RSP: 002b:00007ffe996a7ea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000556f9f9c3390 RCX: 00007f230fe04807
RDX: 0000000000000000 RSI: 00007ffe996a7ee0 RDI: 0000000000000003
RBP: 0000556f9f9c88c0 R08: 0000000000000002 R09: 0000000000000000
R10: 0000556f965ca190 R11: 0000000000000246 R12: 0000556f9f9c8780
R13: 00007ffe996a7ee0 R14: 0000556f9f9c87d0 R15: 0000556f9f9c88c0
 </TASK>

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/mac.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 137394c36460..47f9a936b697 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -8183,9 +8183,9 @@ ath12k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
 				    arvif->vdev_id, ret);
 			goto out;
 		}
-		ieee80211_iterate_stations_atomic(hw,
-						  ath12k_mac_disable_peer_fixed_rate,
-						  arvif);
+		ieee80211_iterate_stations_mtx(hw,
+					       ath12k_mac_disable_peer_fixed_rate,
+					       arvif);
 	} else if (ath12k_mac_bitrate_mask_get_single_nss(ar, band, mask,
 							  &single_nss)) {
 		rate = WMI_FIXED_RATE_NONE;
@@ -8230,16 +8230,16 @@ ath12k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
 			goto out;
 		}
 
-		ieee80211_iterate_stations_atomic(hw,
-						  ath12k_mac_disable_peer_fixed_rate,
-						  arvif);
+		ieee80211_iterate_stations_mtx(hw,
+					       ath12k_mac_disable_peer_fixed_rate,
+					       arvif);
 
 		mutex_lock(&ar->conf_mutex);
 
 		arvif->bitrate_mask = *mask;
-		ieee80211_iterate_stations_atomic(hw,
-						  ath12k_mac_set_bitrate_mask_iter,
-						  arvif);
+		ieee80211_iterate_stations_mtx(hw,
+					       ath12k_mac_set_bitrate_mask_iter,
+					       arvif);
 
 		mutex_unlock(&ar->conf_mutex);
 	}
-- 
2.39.5

[PATCH RFC v3 2/6] wifi: ath12k: convert struct ath12k_sta::update_wk to use struct wiphy_work

[Kalle Valo]

From: Kalle Valo <quic_kvalo@quicinc.com>

For praparation to switch ath12k to use wiphy_lock() we can convert
ath12k_sta_rc_update_wk() to use wiphy_work_queue() for consistency. To avoid
any deadlocks do the struct ath12k_sta::update_wk conversion before switching
to using wiphy_lock() throughout the driver.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/core.h |  2 +-
 drivers/net/wireless/ath/ath12k/mac.c  | 12 +++++++-----
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
index 7f2e9a9b4097..5163b5b07376 100644
--- a/drivers/net/wireless/ath/ath12k/core.h
+++ b/drivers/net/wireless/ath/ath12k/core.h
@@ -451,7 +451,7 @@ struct ath12k_sta {
 	u32 smps;
 	enum hal_pn_type pn_type;
 
-	struct work_struct update_wk;
+	struct wiphy_work update_wk;
 	struct rate_info txrate;
 	struct rate_info last_txrate;
 	u64 rx_duration;
diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 47f9a936b697..22c4bbf47f9c 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -4270,7 +4270,7 @@ static int ath12k_station_disassoc(struct ath12k *ar,
 	return 0;
 }
 
-static void ath12k_sta_rc_update_wk(struct work_struct *wk)
+static void ath12k_sta_rc_update_wk(struct wiphy *wiphy, struct wiphy_work *wk)
 {
 	struct ath12k *ar;
 	struct ath12k_vif *arvif;
@@ -4286,6 +4286,8 @@ static void ath12k_sta_rc_update_wk(struct work_struct *wk)
 	struct ath12k_wmi_peer_assoc_arg peer_arg;
 	enum wmi_phy_mode peer_phymode;
 
+	lockdep_assert_wiphy(wiphy);
+
 	arsta = container_of(wk, struct ath12k_sta, update_wk);
 	sta = container_of((void *)arsta, struct ieee80211_sta, drv_priv);
 	arvif = arsta->arvif;
@@ -4583,7 +4585,7 @@ static int ath12k_mac_op_sta_state(struct ieee80211_hw *hw,
 	/* cancel must be done outside the mutex to avoid deadlock */
 	if ((old_state == IEEE80211_STA_NONE &&
 	     new_state == IEEE80211_STA_NOTEXIST))
-		cancel_work_sync(&arsta->update_wk);
+		wiphy_work_cancel(hw->wiphy, &arsta->update_wk);
 
 	ar = ath12k_get_ar_by_vif(hw, vif);
 	if (!ar) {
@@ -4597,7 +4599,7 @@ static int ath12k_mac_op_sta_state(struct ieee80211_hw *hw,
 	    new_state == IEEE80211_STA_NONE) {
 		memset(arsta, 0, sizeof(*arsta));
 		arsta->arvif = arvif;
-		INIT_WORK(&arsta->update_wk, ath12k_sta_rc_update_wk);
+		wiphy_work_init(&arsta->update_wk, ath12k_sta_rc_update_wk);
 
 		ret = ath12k_mac_station_add(ar, vif, sta);
 		if (ret)
@@ -4808,7 +4810,7 @@ static void ath12k_mac_op_sta_rc_update(struct ieee80211_hw *hw,
 
 	spin_unlock_bh(&ar->data_lock);
 
-	ieee80211_queue_work(hw, &arsta->update_wk);
+	wiphy_work_queue(hw->wiphy, &arsta->update_wk);
 }
 
 static int ath12k_conf_tx_uapsd(struct ath12k_vif *arvif,
@@ -8110,7 +8112,7 @@ static void ath12k_mac_set_bitrate_mask_iter(void *data,
 	arsta->changed |= IEEE80211_RC_SUPP_RATES_CHANGED;
 	spin_unlock_bh(&ar->data_lock);
 
-	ieee80211_queue_work(ath12k_ar_to_hw(ar), &arsta->update_wk);
+	wiphy_work_queue(ath12k_ar_to_hw(ar)->wiphy, &arsta->update_wk);
 }
 
 static void ath12k_mac_disable_peer_fixed_rate(void *data,
-- 
2.39.5

[PATCH RFC v3 3/6] wifi: ath12k: switch to using wiphy_lock() and remove ar->conf_mutex

[Kalle Valo]

From: Kalle Valo <quic_kvalo@quicinc.com>

Switch from using driver specific ar->conf_mutex to wiphy->mtx. The benefits are:

* one lock less and simplified locking

* possibility to use wiphy_work_queue() without other locks

Most of the mac80211 ops are called within wiphy_lock(), most notable exception
being tx op. This can be checked with lockdep_assert_wiphy() from
net/mac80211/driver-ops.[ch] and I veried that by manually going through all
the ops in ath12k_ops which had lockdep_assert_wiphy().

The conversion was simple:

* All conf_mutex lock() and unlock() calls which
  already were called under wiphy_lock() I replaced with
  lockdep_assert_wiphy().

* The rest of conf_mutex calls I replaced with wiphy_lock() and wiphy_unlock().

* All lockdep_asset_held(conf_mutex) calls I replaced with
  lockdep_assert_wiphy().

One exception was in ath12k_core_post_reconfigure_recovery() where the wiphy
lock needs to be taken before hw_mutex to avoid a lockdep warning.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/core.c        |   7 +-
 drivers/net/wireless/ath/ath12k/core.h        |   5 +-
 drivers/net/wireless/ath/ath12k/debugfs.c     |   4 +-
 .../wireless/ath/ath12k/debugfs_htt_stats.c   |  26 +-
 drivers/net/wireless/ath/ath12k/mac.c         | 277 +++++++-----------
 drivers/net/wireless/ath/ath12k/peer.c        |   6 +-
 drivers/net/wireless/ath/ath12k/wow.c         |  26 +-
 7 files changed, 143 insertions(+), 208 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c
index 51252e8bc1ae..9cd485ed42ab 100644
--- a/drivers/net/wireless/ath/ath12k/core.c
+++ b/drivers/net/wireless/ath/ath12k/core.c
@@ -1004,7 +1004,7 @@ void ath12k_core_halt(struct ath12k *ar)
 {
 	struct ath12k_base *ab = ar->ab;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	ar->num_created_vdevs = 0;
 	ar->allocated_vdev_map = 0;
@@ -1078,6 +1078,7 @@ static void ath12k_core_post_reconfigure_recovery(struct ath12k_base *ab)
 		if (!ah || ah->state == ATH12K_HW_STATE_OFF)
 			continue;
 
+		wiphy_lock(ah->hw->wiphy);
 		mutex_lock(&ah->hw_mutex);
 
 		switch (ah->state) {
@@ -1086,10 +1087,7 @@ static void ath12k_core_post_reconfigure_recovery(struct ath12k_base *ab)
 
 			for (j = 0; j < ah->num_radio; j++) {
 				ar = &ah->radio[j];
-
-				mutex_lock(&ar->conf_mutex);
 				ath12k_core_halt(ar);
-				mutex_unlock(&ar->conf_mutex);
 			}
 
 			break;
@@ -1110,6 +1108,7 @@ static void ath12k_core_post_reconfigure_recovery(struct ath12k_base *ab)
 		}
 
 		mutex_unlock(&ah->hw_mutex);
+		wiphy_unlock(ah->hw->wiphy);
 	}
 
 	complete(&ab->driver_recovery);
diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
index 5163b5b07376..ebfc1e370acc 100644
--- a/drivers/net/wireless/ath/ath12k/core.h
+++ b/drivers/net/wireless/ath/ath12k/core.h
@@ -562,10 +562,7 @@ struct ath12k {
 	u32 num_stations;
 	u32 max_num_stations;
 	bool monitor_present;
-	/* To synchronize concurrent synchronous mac80211 callback operations,
-	 * concurrent debugfs configuration and concurrent FW statistics events.
-	 */
-	struct mutex conf_mutex;
+
 	/* protects the radio specific data like debug stats, ppdu_stats_info stats,
 	 * vdev_stop_status info, scan data, ath12k_sta info, ath12k_vif info,
 	 * channel context data, survey info, test mode data.
diff --git a/drivers/net/wireless/ath/ath12k/debugfs.c b/drivers/net/wireless/ath/ath12k/debugfs.c
index 2a977c36af00..d4b32d1a431c 100644
--- a/drivers/net/wireless/ath/ath12k/debugfs.c
+++ b/drivers/net/wireless/ath/ath12k/debugfs.c
@@ -15,14 +15,14 @@ static ssize_t ath12k_write_simulate_radar(struct file *file,
 	struct ath12k *ar = file->private_data;
 	int ret;
 
-	mutex_lock(&ar->conf_mutex);
+	wiphy_lock(ath12k_ar_to_hw(ar)->wiphy);
 	ret = ath12k_wmi_simulate_radar(ar);
 	if (ret)
 		goto exit;
 
 	ret = count;
 exit:
-	mutex_unlock(&ar->conf_mutex);
+	wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy);
 	return ret;
 }
 
diff --git a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
index f1b7e74aefe4..bbdef525c17e 100644
--- a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
+++ b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
@@ -1627,9 +1627,9 @@ static ssize_t ath12k_read_htt_stats_type(struct file *file,
 	char buf[32];
 	size_t len;
 
-	mutex_lock(&ar->conf_mutex);
+	wiphy_lock(ath12k_ar_to_hw(ar)->wiphy);
 	type = ar->debug.htt_stats.type;
-	mutex_unlock(&ar->conf_mutex);
+	wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy);
 
 	len = scnprintf(buf, sizeof(buf), "%u\n", type);
 
@@ -1662,7 +1662,7 @@ static ssize_t ath12k_write_htt_stats_type(struct file *file,
 	    type >= ATH12K_DBG_HTT_NUM_EXT_STATS)
 		return -EINVAL;
 
-	mutex_lock(&ar->conf_mutex);
+	wiphy_lock(ath12k_ar_to_hw(ar)->wiphy);
 
 	ar->debug.htt_stats.type = type;
 	ar->debug.htt_stats.cfg_param[0] = cfg_param[0];
@@ -1670,7 +1670,7 @@ static ssize_t ath12k_write_htt_stats_type(struct file *file,
 	ar->debug.htt_stats.cfg_param[2] = cfg_param[2];
 	ar->debug.htt_stats.cfg_param[3] = cfg_param[3];
 
-	mutex_unlock(&ar->conf_mutex);
+	wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy);
 
 	return count;
 }
@@ -1691,7 +1691,7 @@ static int ath12k_debugfs_htt_stats_req(struct ath12k *ar)
 	int ret, pdev_id;
 	struct htt_ext_stats_cfg_params cfg_params = { 0 };
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	init_completion(&stats_req->htt_stats_rcvd);
 
@@ -1741,7 +1741,7 @@ static int ath12k_open_htt_stats(struct inode *inode,
 	if (type == ATH12K_DBG_HTT_EXT_STATS_RESET)
 		return -EPERM;
 
-	mutex_lock(&ar->conf_mutex);
+	wiphy_lock(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (ah->state != ATH12K_HW_STATE_ON) {
 		ret = -ENETDOWN;
@@ -1776,14 +1776,14 @@ static int ath12k_open_htt_stats(struct inode *inode,
 
 	file->private_data = stats_req;
 
-	mutex_unlock(&ar->conf_mutex);
+	wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy);
 
 	return 0;
 out:
 	kfree(stats_req);
 	ar->debug.htt_stats.stats_req = NULL;
 err_unlock:
-	mutex_unlock(&ar->conf_mutex);
+	wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy);
 
 	return ret;
 }
@@ -1793,10 +1793,10 @@ static int ath12k_release_htt_stats(struct inode *inode,
 {
 	struct ath12k *ar = inode->i_private;
 
-	mutex_lock(&ar->conf_mutex);
+	wiphy_lock(ath12k_ar_to_hw(ar)->wiphy);
 	kfree(file->private_data);
 	ar->debug.htt_stats.stats_req = NULL;
-	mutex_unlock(&ar->conf_mutex);
+	wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy);
 
 	return 0;
 }
@@ -1840,7 +1840,7 @@ static ssize_t ath12k_write_htt_stats_reset(struct file *file,
 	    type == ATH12K_DBG_HTT_EXT_STATS_RESET)
 		return -E2BIG;
 
-	mutex_lock(&ar->conf_mutex);
+	wiphy_lock(ath12k_ar_to_hw(ar)->wiphy);
 	cfg_params.cfg0 = HTT_STAT_DEFAULT_RESET_START_OFFSET;
 	param_pos = (type >> 5) + 1;
 
@@ -1866,12 +1866,12 @@ static ssize_t ath12k_write_htt_stats_reset(struct file *file,
 						 0ULL);
 	if (ret) {
 		ath12k_warn(ar->ab, "failed to send htt stats request: %d\n", ret);
-		mutex_unlock(&ar->conf_mutex);
+		wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy);
 		return ret;
 	}
 
 	ar->debug.htt_stats.reset = type;
-	mutex_unlock(&ar->conf_mutex);
+	wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy);
 
 	return count;
 }
diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 22c4bbf47f9c..5d27e43929d8 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -677,7 +677,8 @@ static struct ath12k_vif *ath12k_mac_get_vif_up(struct ath12k *ar)
 {
 	struct ath12k_vif *arvif;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
+
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		if (arvif->is_up)
 			return arvif;
@@ -774,7 +775,7 @@ static int ath12k_mac_txpower_recalc(struct ath12k *ar)
 	int ret, txpower = -1;
 	u32 param;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		if (arvif->txpower <= 0)
@@ -830,7 +831,7 @@ static int ath12k_recalc_rtscts_prot(struct ath12k_vif *arvif)
 	u32 vdev_param, rts_cts;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	vdev_param = WMI_VDEV_PARAM_ENABLE_RTSCTS;
 
@@ -913,7 +914,7 @@ void ath12k_mac_peer_cleanup_all(struct ath12k *ar)
 	struct ath12k_peer *peer, *tmp;
 	struct ath12k_base *ab = ar->ab;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	spin_lock_bh(&ab->base_lock);
 	list_for_each_entry_safe(peer, tmp, &ab->peers, list) {
@@ -929,7 +930,7 @@ void ath12k_mac_peer_cleanup_all(struct ath12k *ar)
 
 static int ath12k_mac_vdev_setup_sync(struct ath12k *ar)
 {
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (test_bit(ATH12K_FLAG_CRASH_FLUSH, &ar->ab->dev_flags))
 		return -ESHUTDOWN;
@@ -971,7 +972,7 @@ static int ath12k_mac_monitor_vdev_start(struct ath12k *ar, int vdev_id,
 	struct ath12k_wmi_vdev_up_params params = {};
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	channel = chandef->chan;
 	arg.vdev_id = vdev_id;
@@ -1034,7 +1035,7 @@ static int ath12k_mac_monitor_vdev_stop(struct ath12k *ar)
 {
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	reinit_completion(&ar->vdev_setup_done);
 
@@ -1066,7 +1067,7 @@ static int ath12k_mac_monitor_vdev_create(struct ath12k *ar)
 	u8 tmp_addr[6];
 	u16 nss;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (ar->monitor_vdev_created)
 		return 0;
@@ -1132,7 +1133,7 @@ static int ath12k_mac_monitor_vdev_delete(struct ath12k *ar)
 	int ret;
 	unsigned long time_left;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (!ar->monitor_vdev_created)
 		return 0;
@@ -1178,7 +1179,7 @@ static int ath12k_mac_monitor_start(struct ath12k *ar)
 	struct cfg80211_chan_def *chandef = NULL;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (ar->monitor_started)
 		return 0;
@@ -1208,7 +1209,7 @@ static int ath12k_mac_monitor_stop(struct ath12k *ar)
 {
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (!ar->monitor_started)
 		return 0;
@@ -1231,7 +1232,7 @@ static int ath12k_mac_vdev_stop(struct ath12k_vif *arvif)
 	struct ath12k *ar = arvif->ar;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	reinit_completion(&ar->vdev_setup_done);
 
@@ -1272,7 +1273,7 @@ static int ath12k_mac_config(struct ath12k *ar, u32 changed)
 	struct ieee80211_conf *conf = &hw->conf;
 	int ret = 0;
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
 		ar->monitor_conf_enabled = conf->flags & IEEE80211_CONF_MONITOR;
@@ -1296,12 +1297,10 @@ static int ath12k_mac_config(struct ath12k *ar, u32 changed)
 	}
 
 exit:
-	mutex_unlock(&ar->conf_mutex);
 	return ret;
 
 err_mon_del:
 	ath12k_mac_monitor_vdev_delete(ar);
-	mutex_unlock(&ar->conf_mutex);
 	return ret;
 }
 
@@ -1602,7 +1601,7 @@ static void ath12k_control_beaconing(struct ath12k_vif *arvif,
 	struct ath12k *ar = arvif->ar;
 	int ret;
 
-	lockdep_assert_held(&arvif->ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(arvif->ar)->wiphy);
 
 	if (!info->enable_beacon) {
 		ret = ath12k_wmi_vdev_down(ar, arvif->vdev_id);
@@ -1724,7 +1723,7 @@ static void ath12k_peer_assoc_h_basic(struct ath12k *ar,
 	struct ieee80211_hw *hw = ath12k_ar_to_hw(ar);
 	u32 aid;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	if (vif->type == NL80211_IFTYPE_STATION)
 		aid = vif->cfg.aid;
@@ -1754,7 +1753,7 @@ static void ath12k_peer_assoc_h_crypto(struct ath12k *ar,
 	const u8 *rsnie = NULL;
 	const u8 *wpaie = NULL;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	if (WARN_ON(ath12k_mac_vif_chan(vif, &def)))
 		return;
@@ -1819,7 +1818,7 @@ static void ath12k_peer_assoc_h_rates(struct ath12k *ar,
 	u8 rate;
 	int i;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	if (WARN_ON(ath12k_mac_vif_chan(vif, &def)))
 		return;
@@ -1880,7 +1879,7 @@ static void ath12k_peer_assoc_h_ht(struct ath12k *ar,
 	u8 max_nss;
 	u32 stbc;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (WARN_ON(ath12k_mac_vif_chan(vif, &def)))
 		return;
@@ -2420,7 +2419,7 @@ static int ath12k_peer_assoc_qos_ap(struct ath12k *ar,
 	u32 uapsd;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	arg.vdev_id = arvif->vdev_id;
 
@@ -2807,7 +2806,7 @@ static void ath12k_peer_assoc_prepare(struct ath12k *ar,
 				      struct ath12k_wmi_peer_assoc_arg *arg,
 				      bool reassoc)
 {
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	memset(arg, 0, sizeof(*arg));
 
@@ -2860,7 +2859,7 @@ static void ath12k_bss_assoc(struct ath12k *ar,
 	bool is_auth = false;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	ath12k_dbg(ar->ab, ATH12K_DBG_MAC, "mac vdev %i assoc bssid %pM aid %d\n",
 		   arvif->vdev_id, arvif->bssid, arvif->aid);
@@ -2953,7 +2952,7 @@ static void ath12k_bss_disassoc(struct ath12k *ar,
 {
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	ath12k_dbg(ar->ab, ATH12K_DBG_MAC, "mac vdev %i disassoc bssid %pM\n",
 		   arvif->vdev_id, arvif->bssid);
@@ -3008,7 +3007,7 @@ static void ath12k_recalculate_mgmt_rate(struct ath12k *ar,
 	u16 bitrate;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	sband = hw->wiphy->bands[def->chan->band];
 	basic_rate_idx = ffs(vif->bss_conf.basic_rates) - 1;
@@ -3091,7 +3090,7 @@ static void ath12k_mac_vif_setup_ps(struct ath12k_vif *arvif)
 	int timeout;
 	bool enable_ps;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (vif->type != NL80211_IFTYPE_STATION)
 		return;
@@ -3146,7 +3145,7 @@ static void ath12k_mac_bss_info_changed(struct ath12k *ar,
 	u8 rateidx;
 	u32 rate;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (changed & BSS_CHANGED_BEACON_INT) {
 		arvif->beacon_interval = info->beacon_int;
@@ -3448,11 +3447,9 @@ static void ath12k_mac_op_bss_info_changed(struct ieee80211_hw *hw,
 		return;
 	}
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	ath12k_mac_bss_info_changed(ar, arvif, info, changed);
-
-	mutex_unlock(&ar->conf_mutex);
 }
 
 static struct ath12k*
@@ -3541,7 +3538,7 @@ static int ath12k_scan_stop(struct ath12k *ar)
 	};
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	/* TODO: Fill other STOP Params */
 	arg.pdev_id = ar->pdev->pdev_id;
@@ -3581,7 +3578,7 @@ static void ath12k_scan_abort(struct ath12k *ar)
 {
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	spin_lock_bh(&ar->data_lock);
 
@@ -3616,9 +3613,9 @@ static void ath12k_scan_timeout_work(struct work_struct *work)
 	struct ath12k *ar = container_of(work, struct ath12k,
 					 scan.timeout.work);
 
-	mutex_lock(&ar->conf_mutex);
+	wiphy_lock(ath12k_ar_to_hw(ar)->wiphy);
 	ath12k_scan_abort(ar);
-	mutex_unlock(&ar->conf_mutex);
+	wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy);
 }
 
 static int ath12k_start_scan(struct ath12k *ar,
@@ -3626,7 +3623,7 @@ static int ath12k_start_scan(struct ath12k *ar,
 {
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	ret = ath12k_wmi_send_scan_start_cmd(ar, arg);
 	if (ret)
@@ -3668,6 +3665,8 @@ static int ath12k_mac_op_hw_scan(struct ieee80211_hw *hw,
 	int i;
 	bool create = true;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	if (ah->num_radio == 1) {
 		WARN_ON(!arvif->is_created);
 		ar = ath12k_ah_to_ar(ah, 0);
@@ -3702,9 +3701,7 @@ static int ath12k_mac_op_hw_scan(struct ieee80211_hw *hw,
 			 * would assign the arvif->ar to NULL after the call
 			 */
 			prev_ar = arvif->ar;
-			mutex_lock(&prev_ar->conf_mutex);
 			ret = ath12k_mac_vdev_delete(prev_ar, vif);
-			mutex_unlock(&prev_ar->conf_mutex);
 			if (ret)
 				ath12k_warn(prev_ar->ab,
 					    "unable to delete scan vdev %d\n", ret);
@@ -3713,17 +3710,13 @@ static int ath12k_mac_op_hw_scan(struct ieee80211_hw *hw,
 		}
 	}
 	if (create) {
-		mutex_lock(&ar->conf_mutex);
 		ret = ath12k_mac_vdev_create(ar, vif);
-		mutex_unlock(&ar->conf_mutex);
 		if (ret) {
 			ath12k_warn(ar->ab, "unable to create scan vdev %d\n", ret);
 			return -EINVAL;
 		}
 	}
 scan:
-	mutex_lock(&ar->conf_mutex);
-
 	spin_lock_bh(&ar->data_lock);
 	switch (ar->scan.state) {
 	case ATH12K_SCAN_IDLE:
@@ -3805,8 +3798,6 @@ static int ath12k_mac_op_hw_scan(struct ieee80211_hw *hw,
 		kfree(arg);
 	}
 
-	mutex_unlock(&ar->conf_mutex);
-
 	return ret;
 }
 
@@ -3821,9 +3812,9 @@ static void ath12k_mac_op_cancel_hw_scan(struct ieee80211_hw *hw,
 
 	ar = arvif->ar;
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
+
 	ath12k_scan_abort(ar);
-	mutex_unlock(&ar->conf_mutex);
 
 	cancel_delayed_work_sync(&ar->scan.timeout);
 }
@@ -3844,7 +3835,7 @@ static int ath12k_install_key(struct ath12k_vif *arvif,
 		.macaddr = macaddr,
 	};
 
-	lockdep_assert_held(&arvif->ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	reinit_completion(&ar->install_key_done);
 
@@ -3912,7 +3903,7 @@ static int ath12k_clear_peer_keys(struct ath12k_vif *arvif,
 	int i;
 	u32 flags = 0;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	spin_lock_bh(&ab->base_lock);
 	peer = ath12k_peer_find(ab, arvif->vdev_id, addr);
@@ -3955,7 +3946,7 @@ static int ath12k_mac_set_key(struct ath12k *ar, enum set_key_cmd cmd,
 	int ret = 0;
 	u32 flags = 0;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (test_bit(ATH12K_FLAG_HW_CRYPTO_DISABLED, &ab->dev_flags))
 		return 1;
@@ -3970,7 +3961,7 @@ static int ath12k_mac_set_key(struct ath12k *ar, enum set_key_cmd cmd,
 	key->hw_key_idx = key->keyidx;
 
 	/* the peer should not disappear in mid-way (unless FW goes awry) since
-	 * we already hold conf_mutex. we just make sure its there now.
+	 * we already hold wiphy lock. we just make sure its there now.
 	 */
 	spin_lock_bh(&ab->base_lock);
 	peer = ath12k_peer_find(ab, arvif->vdev_id, peer_addr);
@@ -4063,6 +4054,8 @@ static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	struct ath12k *ar;
 	int ret;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	/* BIP needs to be done in software */
 	if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
 	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
@@ -4090,9 +4083,7 @@ static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 		return 0;
 	}
 
-	mutex_lock(&ar->conf_mutex);
 	ret = ath12k_mac_set_key(ar, cmd, vif, sta, key);
-	mutex_unlock(&ar->conf_mutex);
 	return ret;
 }
 
@@ -4121,7 +4112,7 @@ ath12k_mac_set_peer_vht_fixed_rate(struct ath12k_vif *arvif,
 	u32 rate_code;
 	int ret, i;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	nss = 0;
 
@@ -4169,7 +4160,7 @@ static int ath12k_station_assoc(struct ath12k *ar,
 	struct cfg80211_bitrate_mask *mask;
 	u8 num_vht_rates;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (WARN_ON(ath12k_mac_vif_chan(vif, &def)))
 		return -EPERM;
@@ -4252,7 +4243,7 @@ static int ath12k_station_disassoc(struct ath12k *ar,
 	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (!sta->wme) {
 		arvif->num_legacy_stations--;
@@ -4312,8 +4303,6 @@ static void ath12k_sta_rc_update_wk(struct wiphy *wiphy, struct wiphy_work *wk)
 
 	spin_unlock_bh(&ar->data_lock);
 
-	mutex_lock(&ar->conf_mutex);
-
 	nss = max_t(u32, 1, nss);
 	nss = min(nss, max(ath12k_mac_max_ht_nss(ht_mcs_mask),
 			   ath12k_mac_max_vht_nss(vht_mcs_mask)));
@@ -4336,7 +4325,7 @@ static void ath12k_sta_rc_update_wk(struct wiphy *wiphy, struct wiphy_work *wk)
 			if (err) {
 				ath12k_warn(ar->ab, "failed to update STA %pM to peer phymode %d: %d\n",
 					    sta->addr, peer_phymode, err);
-				goto err_rc_bw_changed;
+				return;
 			}
 			err = ath12k_wmi_set_peer_param(ar, sta->addr,
 							arvif->vdev_id, WMI_PEER_CHWIDTH,
@@ -4357,7 +4346,7 @@ static void ath12k_sta_rc_update_wk(struct wiphy *wiphy, struct wiphy_work *wk)
 			if (err) {
 				ath12k_warn(ar->ab, "failed to update STA %pM peer to bandwidth %d: %d\n",
 					    sta->addr, bw, err);
-				goto err_rc_bw_changed;
+				return;
 			}
 			err = ath12k_wmi_set_peer_param(ar, sta->addr,
 							arvif->vdev_id, WMI_PEER_PHYMODE,
@@ -4427,8 +4416,6 @@ static void ath12k_sta_rc_update_wk(struct wiphy *wiphy, struct wiphy_work *wk)
 					    sta->addr, arvif->vdev_id);
 		}
 	}
-err_rc_bw_changed:
-	mutex_unlock(&ar->conf_mutex);
 }
 
 static int ath12k_mac_inc_num_stations(struct ath12k_vif *arvif,
@@ -4436,7 +4423,7 @@ static int ath12k_mac_inc_num_stations(struct ath12k_vif *arvif,
 {
 	struct ath12k *ar = arvif->ar;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
 		return 0;
@@ -4454,7 +4441,7 @@ static void ath12k_mac_dec_num_stations(struct ath12k_vif *arvif,
 {
 	struct ath12k *ar = arvif->ar;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
 		return;
@@ -4472,7 +4459,7 @@ static int ath12k_mac_station_add(struct ath12k *ar,
 	struct ath12k_wmi_peer_create_arg peer_param;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	ret = ath12k_mac_inc_num_stations(arvif, sta);
 	if (ret) {
@@ -4593,7 +4580,7 @@ static int ath12k_mac_op_sta_state(struct ieee80211_hw *hw,
 		return -EINVAL;
 	}
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	if (old_state == IEEE80211_STA_NOTEXIST &&
 	    new_state == IEEE80211_STA_NONE) {
@@ -4694,8 +4681,6 @@ static int ath12k_mac_op_sta_state(struct ieee80211_hw *hw,
 				    sta->addr);
 	}
 
-	mutex_unlock(&ar->conf_mutex);
-
 	return ret;
 }
 
@@ -4722,7 +4707,7 @@ static int ath12k_mac_op_sta_set_txpwr(struct ieee80211_hw *hw,
 
 	ar = ath12k_ah_to_ar(ah, 0);
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	ret = ath12k_wmi_set_peer_param(ar, sta->addr, arvif->vdev_id,
 					WMI_PEER_USE_FIXED_PWR, txpwr);
@@ -4733,7 +4718,6 @@ static int ath12k_mac_op_sta_set_txpwr(struct ieee80211_hw *hw,
 	}
 
 out:
-	mutex_unlock(&ar->conf_mutex);
 	return ret;
 }
 
@@ -4879,7 +4863,7 @@ static int ath12k_mac_conf_tx(struct ath12k_vif *arvif,
 	struct ath12k_base *ab = ar->ab;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	switch (ac) {
 	case IEEE80211_AC_VO:
@@ -4933,6 +4917,8 @@ static int ath12k_mac_op_conf_tx(struct ieee80211_hw *hw,
 	struct ath12k_vif_cache *cache = arvif->cache;
 	int ret;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	ar = ath12k_get_ar_by_vif(hw, vif);
 	if (!ar) {
 		/* cache the info and apply after vdev is created */
@@ -4945,9 +4931,7 @@ static int ath12k_mac_op_conf_tx(struct ieee80211_hw *hw,
 		return 0;
 	}
 
-	mutex_lock(&ar->conf_mutex);
 	ret = ath12k_mac_conf_tx(arvif, link_id, ac, params);
-	mutex_unlock(&ar->conf_mutex);
 
 	return ret;
 }
@@ -5614,7 +5598,7 @@ static int __ath12k_set_antenna(struct ath12k *ar, u32 tx_ant, u32 rx_ant)
 	struct ath12k_hw *ah = ath12k_ar_to_ah(ar);
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (ath12k_check_chain_mask(ar, tx_ant, true))
 		return -EINVAL;
@@ -5941,8 +5925,7 @@ static int ath12k_mac_start(struct ath12k *ar)
 	int ret;
 
 	lockdep_assert_held(&ah->hw_mutex);
-
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	ret = ath12k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_PMF_QOS,
 					1, pdev->pdev_id);
@@ -6027,14 +6010,11 @@ static int ath12k_mac_start(struct ath12k *ar)
 		}
 	}
 
-	mutex_unlock(&ar->conf_mutex);
-
 	rcu_assign_pointer(ab->pdevs_active[ar->pdev_idx],
 			   &ab->pdevs[ar->pdev_idx]);
 
 	return 0;
 err:
-	mutex_unlock(&ar->conf_mutex);
 
 	return ret;
 }
@@ -6160,15 +6140,14 @@ static void ath12k_mac_stop(struct ath12k *ar)
 	int ret;
 
 	lockdep_assert_held(&ah->hw_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
-	mutex_lock(&ar->conf_mutex);
 	ret = ath12k_mac_config_mon_status_default(ar, false);
 	if (ret && (ret != -EOPNOTSUPP))
 		ath12k_err(ar->ab, "failed to clear rx_filter for monitor status ring: (%d)\n",
 			   ret);
 
 	clear_bit(ATH12K_CAC_RUNNING, &ar->dev_flags);
-	mutex_unlock(&ar->conf_mutex);
 
 	cancel_delayed_work_sync(&ar->scan.timeout);
 	cancel_work_sync(&ar->regd_update_work);
@@ -6432,7 +6411,8 @@ static int ath12k_mac_vdev_create(struct ath12k *ar, struct ieee80211_vif *vif)
 	int i;
 	int ret, vdev_id;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	arvif->ar = ar;
 	vdev_id = __ffs64(ab->free_vdev_map);
@@ -6643,7 +6623,7 @@ static void ath12k_mac_vif_cache_flush(struct ath12k *ar,  struct ieee80211_vif
 
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (!cache)
 		return;
@@ -6682,6 +6662,8 @@ static struct ath12k *ath12k_mac_assign_vif_to_vdev(struct ieee80211_hw *hw,
 	struct ath12k_base *ab;
 	int ret;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	if (ah->num_radio == 1)
 		ar = ah->radio;
 	else if (ctx)
@@ -6714,20 +6696,15 @@ static struct ath12k *ath12k_mac_assign_vif_to_vdev(struct ieee80211_hw *hw,
 			 * be set to NULL after vdev delete is done
 			 */
 			prev_ar = arvif->ar;
-			mutex_lock(&prev_ar->conf_mutex);
 			ret = ath12k_mac_vdev_delete(prev_ar, vif);
-
 			if (ret)
 				ath12k_warn(prev_ar->ab, "unable to delete vdev %d\n",
 					    ret);
-			mutex_unlock(&prev_ar->conf_mutex);
 		}
 	}
 
 	ab = ar->ab;
 
-	mutex_lock(&ar->conf_mutex);
-
 	if (arvif->is_created)
 		goto flush;
 
@@ -6756,7 +6733,6 @@ static struct ath12k *ath12k_mac_assign_vif_to_vdev(struct ieee80211_hw *hw,
 	 */
 	ath12k_mac_vif_cache_flush(ar, vif);
 unlock:
-	mutex_unlock(&ar->conf_mutex);
 	return arvif->ar;
 }
 
@@ -6766,6 +6742,8 @@ static int ath12k_mac_op_add_interface(struct ieee80211_hw *hw,
 	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
 	int i;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	memset(arvif, 0, sizeof(*arvif));
 
 	arvif->vif = vif;
@@ -6830,7 +6808,7 @@ static int ath12k_mac_vdev_delete(struct ath12k *ar, struct ieee80211_vif *vif)
 	unsigned long time_left;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 	reinit_completion(&ar->vdev_delete_done);
 
 	ret = ath12k_wmi_vdev_delete(ar, arvif->vdev_id);
@@ -6893,6 +6871,8 @@ static void ath12k_mac_op_remove_interface(struct ieee80211_hw *hw,
 	struct ath12k *ar;
 	int ret;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	if (!arvif->is_created) {
 		/* if we cached some config but never received assign chanctx,
 		 * free the allocated cache.
@@ -6906,8 +6886,6 @@ static void ath12k_mac_op_remove_interface(struct ieee80211_hw *hw,
 
 	cancel_delayed_work_sync(&arvif->connection_loss_work);
 
-	mutex_lock(&ar->conf_mutex);
-
 	ath12k_dbg(ab, ATH12K_DBG_MAC, "mac remove interface (vdev %d)\n",
 		   arvif->vdev_id);
 
@@ -6919,8 +6897,6 @@ static void ath12k_mac_op_remove_interface(struct ieee80211_hw *hw,
 	}
 
 	ath12k_mac_vdev_delete(ar, vif);
-
-	mutex_unlock(&ar->conf_mutex);
 }
 
 /* FIXME: Has to be verified. */
@@ -6939,7 +6915,7 @@ static void ath12k_mac_configure_filter(struct ath12k *ar,
 	bool reset_flag;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	ar->filter_flags = total_flags;
 
@@ -6966,12 +6942,10 @@ static void ath12k_mac_op_configure_filter(struct ieee80211_hw *hw,
 
 	ar = ath12k_ah_to_ar(ah, 0);
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	*total_flags &= SUPPORTED_FILTERS;
 	ath12k_mac_configure_filter(ar, *total_flags);
-
-	mutex_unlock(&ar->conf_mutex);
 }
 
 static int ath12k_mac_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
@@ -6981,11 +6955,11 @@ static int ath12k_mac_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *
 	struct ath12k *ar;
 	int i;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	for_each_ar(ah, ar, i) {
-		mutex_lock(&ar->conf_mutex);
 		antennas_rx = max_t(u32, antennas_rx, ar->cfg_rx_chainmask);
 		antennas_tx = max_t(u32, antennas_tx, ar->cfg_tx_chainmask);
-		mutex_unlock(&ar->conf_mutex);
 	}
 
 	*tx_ant = antennas_tx;
@@ -7001,10 +6975,10 @@ static int ath12k_mac_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx
 	int ret = 0;
 	int i;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	for_each_ar(ah, ar, i) {
-		mutex_lock(&ar->conf_mutex);
 		ret = __ath12k_set_antenna(ar, tx_ant, rx_ant);
-		mutex_unlock(&ar->conf_mutex);
 		if (ret)
 			break;
 	}
@@ -7018,7 +6992,7 @@ static int ath12k_mac_ampdu_action(struct ath12k_vif *arvif,
 	struct ath12k *ar = arvif->ar;
 	int ret = -EINVAL;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	switch (params->action) {
 	case IEEE80211_AMPDU_RX_START:
@@ -7057,10 +7031,9 @@ static int ath12k_mac_op_ampdu_action(struct ieee80211_hw *hw,
 
 	ar = ath12k_ah_to_ar(ah, 0);
 
-	mutex_lock(&ar->conf_mutex);
-	ret = ath12k_mac_ampdu_action(arvif, params);
-	mutex_unlock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
+	ret = ath12k_mac_ampdu_action(arvif, params);
 	if (ret)
 		ath12k_warn(ar->ab, "pdev idx %d unable to perform ampdu action %d ret %d\n",
 			    ar->pdev_idx, params->action, ret);
@@ -7084,7 +7057,7 @@ static int ath12k_mac_op_add_chanctx(struct ieee80211_hw *hw,
 		   "mac chanctx add freq %u width %d ptr %p\n",
 		   ctx->def.chan->center_freq, ctx->def.width, ctx);
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	spin_lock_bh(&ar->data_lock);
 	/* TODO: In case of multiple channel context, populate rx_channel from
@@ -7093,8 +7066,6 @@ static int ath12k_mac_op_add_chanctx(struct ieee80211_hw *hw,
 	ar->rx_channel = ctx->def.chan;
 	spin_unlock_bh(&ar->data_lock);
 
-	mutex_unlock(&ar->conf_mutex);
-
 	return 0;
 }
 
@@ -7114,7 +7085,7 @@ static void ath12k_mac_op_remove_chanctx(struct ieee80211_hw *hw,
 		   "mac chanctx remove freq %u width %d ptr %p\n",
 		   ctx->def.chan->center_freq, ctx->def.width, ctx);
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	spin_lock_bh(&ar->data_lock);
 	/* TODO: In case of there is one more channel context left, populate
@@ -7122,8 +7093,6 @@ static void ath12k_mac_op_remove_chanctx(struct ieee80211_hw *hw,
 	 */
 	ar->rx_channel = NULL;
 	spin_unlock_bh(&ar->data_lock);
-
-	mutex_unlock(&ar->conf_mutex);
 }
 
 static enum wmi_phy_mode
@@ -7201,7 +7170,7 @@ ath12k_mac_vdev_start_restart(struct ath12k_vif *arvif,
 	int he_support = arvif->vif->bss_conf.he_support;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	reinit_completion(&ar->vdev_setup_done);
 
@@ -7437,7 +7406,7 @@ ath12k_mac_update_vif_chan(struct ath12k *ar,
 	int i;
 	bool monitor_vif = false;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	for (i = 0; i < n_vifs; i++) {
 		vif = vifs[i].vif;
@@ -7530,7 +7499,7 @@ ath12k_mac_update_active_vif_chan(struct ath12k *ar,
 	struct ath12k_mac_change_chanctx_arg arg = { .ctx = ctx, .ar = ar };
 	struct ieee80211_hw *hw = ath12k_ar_to_hw(ar);
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	ieee80211_iterate_active_interfaces_atomic(hw,
 						   IEEE80211_IFACE_ITER_NORMAL,
@@ -7566,7 +7535,7 @@ static void ath12k_mac_op_change_chanctx(struct ieee80211_hw *hw,
 
 	ab = ar->ab;
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	ath12k_dbg(ab, ATH12K_DBG_MAC,
 		   "mac chanctx change freq %u width %d ptr %p changed %x\n",
@@ -7576,7 +7545,7 @@ static void ath12k_mac_op_change_chanctx(struct ieee80211_hw *hw,
 	 * switch_vif_chanctx().
 	 */
 	if (WARN_ON(changed & IEEE80211_CHANCTX_CHANGE_CHANNEL))
-		goto unlock;
+		return;
 
 	if (changed & IEEE80211_CHANCTX_CHANGE_WIDTH ||
 	    changed & IEEE80211_CHANCTX_CHANGE_RADAR ||
@@ -7584,9 +7553,6 @@ static void ath12k_mac_op_change_chanctx(struct ieee80211_hw *hw,
 		ath12k_mac_update_active_vif_chan(ar, ctx);
 
 	/* TODO: Recalc radar detection */
-
-unlock:
-	mutex_unlock(&ar->conf_mutex);
 }
 
 static int ath12k_start_vdev_delay(struct ath12k *ar,
@@ -7632,6 +7598,8 @@ ath12k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
 	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
 	int ret;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	/* For multi radio wiphy, the vdev was not created during add_interface
 	 * create now since we have a channel ctx now to assign to a specific ar/fw
 	 */
@@ -7643,7 +7611,7 @@ ath12k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
 
 	ab = ar->ab;
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	ath12k_dbg(ab, ATH12K_DBG_MAC,
 		   "mac chanctx assign ptr %p vdev_id %i\n",
@@ -7690,8 +7658,6 @@ ath12k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
 	/* TODO: Setup ps and cts/rts protection */
 
 out:
-	mutex_unlock(&ar->conf_mutex);
-
 	return ret;
 }
 
@@ -7719,7 +7685,7 @@ ath12k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
 	ar = arvif->ar;
 	ab = ar->ab;
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	ath12k_dbg(ab, ATH12K_DBG_MAC,
 		   "mac chanctx unassign ptr %p vdev_id %i\n",
@@ -7729,10 +7695,8 @@ ath12k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
 
 	if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR) {
 		ret = ath12k_mac_monitor_stop(ar);
-		if (ret) {
-			mutex_unlock(&ar->conf_mutex);
+		if (ret)
 			return;
-		}
 
 		arvif->is_started = false;
 	}
@@ -7750,8 +7714,6 @@ ath12k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
 	if (arvif->vdev_type != WMI_VDEV_TYPE_MONITOR &&
 	    ar->num_started_vdevs == 1 && ar->monitor_vdev_created)
 		ath12k_mac_monitor_stop(ar);
-
-	mutex_unlock(&ar->conf_mutex);
 }
 
 static int
@@ -7766,21 +7728,17 @@ ath12k_mac_op_switch_vif_chanctx(struct ieee80211_hw *hw,
 	if (!ar)
 		return -EINVAL;
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	/* Switching channels across radio is not allowed */
-	if (ar != ath12k_get_ar_by_ctx(hw, vifs->new_ctx)) {
-		mutex_unlock(&ar->conf_mutex);
+	if (ar != ath12k_get_ar_by_ctx(hw, vifs->new_ctx))
 		return -EINVAL;
-	}
 
 	ath12k_dbg(ar->ab, ATH12K_DBG_MAC,
 		   "mac chanctx switch n_vifs %d mode %d\n",
 		   n_vifs, mode);
 	ath12k_mac_update_vif_chan(ar, vifs, n_vifs);
 
-	mutex_unlock(&ar->conf_mutex);
-
 	return 0;
 }
 
@@ -7790,7 +7748,8 @@ ath12k_set_vdev_param_to_all_vifs(struct ath12k *ar, int param, u32 value)
 	struct ath12k_vif *arvif;
 	int ret = 0;
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
+
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		ath12k_dbg(ar->ab, ATH12K_DBG_MAC, "setting mac vdev %d param %d value %d\n",
 			   param, arvif->vdev_id, value);
@@ -7803,7 +7762,7 @@ ath12k_set_vdev_param_to_all_vifs(struct ath12k *ar, int param, u32 value)
 			break;
 		}
 	}
-	mutex_unlock(&ar->conf_mutex);
+
 	return ret;
 }
 
@@ -8029,7 +7988,7 @@ static int ath12k_mac_set_fixed_rate_params(struct ath12k_vif *arvif,
 	u32 vdev_param;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	ath12k_dbg(ar->ab, ATH12K_DBG_MAC, "mac set fixed rate params vdev %i rate 0x%02x nss %u sgi %u\n",
 		   arvif->vdev_id, rate, nss, sgi);
@@ -8155,6 +8114,8 @@ ath12k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
 	int ret;
 	int num_rates;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	if (ath12k_mac_vif_chan(vif, &def))
 		return -EPERM;
 
@@ -8236,26 +8197,18 @@ ath12k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
 					       ath12k_mac_disable_peer_fixed_rate,
 					       arvif);
 
-		mutex_lock(&ar->conf_mutex);
-
 		arvif->bitrate_mask = *mask;
 		ieee80211_iterate_stations_mtx(hw,
 					       ath12k_mac_set_bitrate_mask_iter,
 					       arvif);
-
-		mutex_unlock(&ar->conf_mutex);
 	}
 
-	mutex_lock(&ar->conf_mutex);
-
 	ret = ath12k_mac_set_fixed_rate_params(arvif, rate, nss, sgi, ldpc);
 	if (ret) {
 		ath12k_warn(ar->ab, "failed to set fixed rate params on vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 	}
 
-	mutex_unlock(&ar->conf_mutex);
-
 out:
 	return ret;
 }
@@ -8270,6 +8223,8 @@ ath12k_mac_op_reconfig_complete(struct ieee80211_hw *hw,
 	struct ath12k_vif *arvif;
 	int recovery_count, i;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	if (reconfig_type != IEEE80211_RECONFIG_TYPE_RESTART)
 		return;
 
@@ -8282,8 +8237,6 @@ ath12k_mac_op_reconfig_complete(struct ieee80211_hw *hw,
 	ieee80211_wake_queues(hw);
 
 	for_each_ar(ah, ar, i) {
-		mutex_lock(&ar->conf_mutex);
-
 		ab = ar->ab;
 
 		ath12k_warn(ar->ab, "pdev %d successfully recovered\n",
@@ -8328,8 +8281,6 @@ ath12k_mac_op_reconfig_complete(struct ieee80211_hw *hw,
 					   "restart disconnect\n");
 			}
 		}
-
-		mutex_unlock(&ar->conf_mutex);
 	}
 }
 
@@ -8340,7 +8291,7 @@ ath12k_mac_update_bss_chan_survey(struct ath12k *ar,
 	int ret;
 	enum wmi_bss_chan_info_req_type type = WMI_BSS_SURVEY_REQ_TYPE_READ;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (!test_bit(WMI_TLV_SERVICE_BSS_CHANNEL_INFO_64, ar->ab->wmi_ab.svc_map) ||
 	    ar->rx_channel != channel)
@@ -8372,6 +8323,8 @@ static int ath12k_mac_op_get_survey(struct ieee80211_hw *hw, int idx,
 	struct ieee80211_supported_band *sband;
 	struct survey_info *ar_survey;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	if (idx >= ATH12K_NUM_CHANS)
 		return -ENOENT;
 
@@ -8405,8 +8358,6 @@ static int ath12k_mac_op_get_survey(struct ieee80211_hw *hw, int idx,
 
 	ar_survey = &ar->survey[idx];
 
-	mutex_lock(&ar->conf_mutex);
-
 	ath12k_mac_update_bss_chan_survey(ar, &sband->channels[idx]);
 
 	spin_lock_bh(&ar->data_lock);
@@ -8418,7 +8369,6 @@ static int ath12k_mac_op_get_survey(struct ieee80211_hw *hw, int idx,
 	if (ar->rx_channel == survey->channel)
 		survey->filled |= SURVEY_INFO_IN_USE;
 
-	mutex_unlock(&ar->conf_mutex);
 	return 0;
 }
 
@@ -8464,7 +8414,7 @@ static int ath12k_mac_op_cancel_remain_on_channel(struct ieee80211_hw *hw,
 
 	ar = ath12k_ah_to_ar(ah, 0);
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	spin_lock_bh(&ar->data_lock);
 	ar->scan.roc_notify = false;
@@ -8472,8 +8422,6 @@ static int ath12k_mac_op_cancel_remain_on_channel(struct ieee80211_hw *hw,
 
 	ath12k_scan_abort(ar);
 
-	mutex_unlock(&ar->conf_mutex);
-
 	cancel_delayed_work_sync(&ar->scan.timeout);
 
 	return 0;
@@ -8493,6 +8441,8 @@ static int ath12k_mac_op_remain_on_channel(struct ieee80211_hw *hw,
 	bool create = true;
 	int ret;
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	if (ah->num_radio == 1) {
 		WARN_ON(!arvif->is_created);
 		ar = ath12k_ah_to_ar(ah, 0);
@@ -8524,9 +8474,7 @@ static int ath12k_mac_op_remain_on_channel(struct ieee80211_hw *hw,
 			 * would assign the arvif->ar to NULL after the call
 			 */
 			prev_ar = arvif->ar;
-			mutex_lock(&prev_ar->conf_mutex);
 			ret = ath12k_mac_vdev_delete(prev_ar, vif);
-			mutex_unlock(&prev_ar->conf_mutex);
 			if (ret) {
 				ath12k_warn(prev_ar->ab,
 					    "unable to delete scan vdev for roc: %d\n",
@@ -8539,9 +8487,7 @@ static int ath12k_mac_op_remain_on_channel(struct ieee80211_hw *hw,
 	}
 
 	if (create) {
-		mutex_lock(&ar->conf_mutex);
 		ret = ath12k_mac_vdev_create(ar, vif);
-		mutex_unlock(&ar->conf_mutex);
 		if (ret) {
 			ath12k_warn(ar->ab, "unable to create scan vdev for roc: %d\n",
 				    ret);
@@ -8550,7 +8496,6 @@ static int ath12k_mac_op_remain_on_channel(struct ieee80211_hw *hw,
 	}
 
 scan:
-	mutex_lock(&ar->conf_mutex);
 	spin_lock_bh(&ar->data_lock);
 
 	switch (ar->scan.state) {
@@ -8626,8 +8571,6 @@ static int ath12k_mac_op_remain_on_channel(struct ieee80211_hw *hw,
 free_chan_list:
 	kfree(arg.chan_list);
 exit:
-	mutex_unlock(&ar->conf_mutex);
-
 	return ret;
 }
 
@@ -8640,11 +8583,11 @@ static void ath12k_mac_op_set_rekey_data(struct ieee80211_hw *hw,
 	struct ath12k_hw *ah = ath12k_hw_to_ah(hw);
 	struct ath12k *ar = ath12k_ah_to_ar(ah, 0);
 
+	lockdep_assert_wiphy(hw->wiphy);
+
 	ath12k_dbg(ar->ab, ATH12K_DBG_MAC, "mac set rekey data vdev %d\n",
 		   arvif->vdev_id);
 
-	mutex_lock(&ar->conf_mutex);
-
 	memcpy(rekey_data->kck, data->kck, NL80211_KCK_LEN);
 	memcpy(rekey_data->kek, data->kek, NL80211_KEK_LEN);
 
@@ -8661,8 +8604,6 @@ static void ath12k_mac_op_set_rekey_data(struct ieee80211_hw *hw,
 			rekey_data->kck, NL80211_KEK_LEN);
 	ath12k_dbg_dump(ar->ab, ATH12K_DBG_MAC, "replay ctr", NULL,
 			&rekey_data->replay_ctr, sizeof(rekey_data->replay_ctr));
-
-	mutex_unlock(&ar->conf_mutex);
 }
 
 static const struct ieee80211_ops ath12k_ops = {
@@ -9322,7 +9263,7 @@ static void ath12k_mac_setup(struct ath12k *ar)
 	spin_lock_init(&ar->data_lock);
 	INIT_LIST_HEAD(&ar->arvifs);
 	INIT_LIST_HEAD(&ar->ppdu_stats_info);
-	mutex_init(&ar->conf_mutex);
+
 	init_completion(&ar->vdev_setup_done);
 	init_completion(&ar->vdev_delete_done);
 	init_completion(&ar->peer_assoc_done);
@@ -9511,7 +9452,7 @@ int ath12k_mac_vif_set_keepalive(struct ath12k_vif *arvif,
 	struct ath12k *ar = arvif->ar;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
 		return 0;
diff --git a/drivers/net/wireless/ath/ath12k/peer.c b/drivers/net/wireless/ath/ath12k/peer.c
index 19c0626fbff1..64c8a734bafb 100644
--- a/drivers/net/wireless/ath/ath12k/peer.c
+++ b/drivers/net/wireless/ath/ath12k/peer.c
@@ -186,7 +186,7 @@ void ath12k_peer_cleanup(struct ath12k *ar, u32 vdev_id)
 	struct ath12k_peer *peer, *tmp;
 	struct ath12k_base *ab = ar->ab;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	spin_lock_bh(&ab->base_lock);
 	list_for_each_entry_safe(peer, tmp, &ab->peers, list) {
@@ -235,7 +235,7 @@ int ath12k_peer_delete(struct ath12k *ar, u32 vdev_id, u8 *addr)
 {
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	reinit_completion(&ar->peer_delete_done);
 
@@ -268,7 +268,7 @@ int ath12k_peer_create(struct ath12k *ar, struct ath12k_vif *arvif,
 	struct ath12k_peer *peer;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	if (ar->num_peers > (ar->max_num_peers - 1)) {
 		ath12k_warn(ar->ab,
diff --git a/drivers/net/wireless/ath/ath12k/wow.c b/drivers/net/wireless/ath/ath12k/wow.c
index 9b8684abbe40..94a443307448 100644
--- a/drivers/net/wireless/ath/ath12k/wow.c
+++ b/drivers/net/wireless/ath/ath12k/wow.c
@@ -132,7 +132,7 @@ static int ath12k_wow_cleanup(struct ath12k *ar)
 	struct ath12k_vif *arvif;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		ret = ath12k_wow_vif_cleanup(arvif);
@@ -476,7 +476,7 @@ static int ath12k_wow_set_wakeups(struct ath12k *ar,
 	struct ath12k_vif *arvif;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		if (ath12k_wow_is_p2p_vdev(arvif))
@@ -535,7 +535,7 @@ static int ath12k_wow_nlo_cleanup(struct ath12k *ar)
 	struct ath12k_vif *arvif;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		if (ath12k_wow_is_p2p_vdev(arvif))
@@ -558,7 +558,7 @@ static int ath12k_wow_set_hw_filter(struct ath12k *ar)
 	struct ath12k_vif *arvif;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
@@ -584,7 +584,7 @@ static int ath12k_wow_clear_hw_filter(struct ath12k *ar)
 	struct ath12k_vif *arvif;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
@@ -735,7 +735,7 @@ static int ath12k_wow_arp_ns_offload(struct ath12k *ar, bool enable)
 	struct ath12k_vif *arvif;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	offload = kmalloc(sizeof(*offload), GFP_KERNEL);
 	if (!offload)
@@ -769,7 +769,7 @@ static int ath12k_gtk_rekey_offload(struct ath12k *ar, bool enable)
 	struct ath12k_vif *arvif;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		if (arvif->vdev_type != WMI_VDEV_TYPE_STA ||
@@ -827,7 +827,7 @@ static int ath12k_wow_set_keepalive(struct ath12k *ar,
 	struct ath12k_vif *arvif;
 	int ret;
 
-	lockdep_assert_held(&ar->conf_mutex);
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		ret = ath12k_mac_vif_set_keepalive(arvif, method, interval);
@@ -845,7 +845,7 @@ int ath12k_wow_op_suspend(struct ieee80211_hw *hw,
 	struct ath12k *ar = ath12k_ah_to_ar(ah, 0);
 	int ret;
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	ret =  ath12k_wow_cleanup(ar);
 	if (ret) {
@@ -913,7 +913,6 @@ int ath12k_wow_op_suspend(struct ieee80211_hw *hw,
 	ath12k_wow_cleanup(ar);
 
 exit:
-	mutex_unlock(&ar->conf_mutex);
 	return ret ? 1 : 0;
 }
 
@@ -922,9 +921,9 @@ void ath12k_wow_op_set_wakeup(struct ieee80211_hw *hw, bool enabled)
 	struct ath12k_hw *ah = ath12k_hw_to_ah(hw);
 	struct ath12k *ar = ath12k_ah_to_ar(ah, 0);
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
+
 	device_set_wakeup_enable(ar->ab->dev, enabled);
-	mutex_unlock(&ar->conf_mutex);
 }
 
 int ath12k_wow_op_resume(struct ieee80211_hw *hw)
@@ -933,7 +932,7 @@ int ath12k_wow_op_resume(struct ieee80211_hw *hw)
 	struct ath12k *ar = ath12k_ah_to_ar(ah, 0);
 	int ret;
 
-	mutex_lock(&ar->conf_mutex);
+	lockdep_assert_wiphy(hw->wiphy);
 
 	ret = ath12k_hif_resume(ar->ab);
 	if (ret) {
@@ -995,7 +994,6 @@ int ath12k_wow_op_resume(struct ieee80211_hw *hw)
 		}
 	}
 
-	mutex_unlock(&ar->conf_mutex);
 	return ret;
 }
 
-- 
2.39.5

[PATCH RFC v3 4/6] wifi: ath12k: cleanup unneeded labels

[Kalle Valo]

From: Kalle Valo <quic_kvalo@quicinc.com>

After removing the conf_mutex in the previous patch there are now unnecessary
labels in mac.c. Remove those and instead use directly return.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/mac.c | 56 +++++++++++----------------
 1 file changed, 22 insertions(+), 34 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 5d27e43929d8..47e8354bb436 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -1279,24 +1279,23 @@ static int ath12k_mac_config(struct ath12k *ar, u32 changed)
 		ar->monitor_conf_enabled = conf->flags & IEEE80211_CONF_MONITOR;
 		if (ar->monitor_conf_enabled) {
 			if (ar->monitor_vdev_created)
-				goto exit;
+				return ret;
 			ret = ath12k_mac_monitor_vdev_create(ar);
 			if (ret)
-				goto exit;
+				return ret;
 			ret = ath12k_mac_monitor_start(ar);
 			if (ret)
 				goto err_mon_del;
 		} else {
 			if (!ar->monitor_vdev_created)
-				goto exit;
+				return ret;
 			ret = ath12k_mac_monitor_stop(ar);
 			if (ret)
-				goto exit;
+				return ret;
 			ath12k_mac_monitor_vdev_delete(ar);
 		}
 	}
 
-exit:
 	return ret;
 
 err_mon_del:
@@ -4714,10 +4713,9 @@ static int ath12k_mac_op_sta_set_txpwr(struct ieee80211_hw *hw,
 	if (ret) {
 		ath12k_warn(ar->ab, "failed to set tx power for station ret: %d\n",
 			    ret);
-		goto out;
+		return ret;
 	}
 
-out:
 	return ret;
 }
 
@@ -6470,7 +6468,7 @@ static int ath12k_mac_vdev_create(struct ath12k *ar, struct ieee80211_vif *vif)
 	if (ret) {
 		ath12k_warn(ab, "failed to create WMI vdev %d: %d\n",
 			    arvif->vdev_id, ret);
-		goto err;
+		return ret;
 	}
 
 	ar->num_created_vdevs++;
@@ -6587,13 +6585,13 @@ static int ath12k_mac_vdev_create(struct ath12k *ar, struct ieee80211_vif *vif)
 		if (ret) {
 			ath12k_warn(ar->ab, "failed to delete peer vdev_id %d addr %pM\n",
 				    arvif->vdev_id, vif->addr);
-			goto err;
+			return ret;
 		}
 
 		ret = ath12k_wait_for_peer_delete_done(ar, arvif->vdev_id,
 						       vif->addr);
 		if (ret)
-			goto err;
+			return ret;
 
 		ar->num_peers--;
 	}
@@ -7625,21 +7623,18 @@ ath12k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
 	    arvif->vdev_type != WMI_VDEV_TYPE_MONITOR &&
 	    !ath12k_peer_exist_by_vdev_id(ab, arvif->vdev_id)) {
 		memcpy(&arvif->chanctx, ctx, sizeof(*ctx));
-		ret = 0;
-		goto out;
+		return 0;
 	}
 
-	if (WARN_ON(arvif->is_started)) {
-		ret = -EBUSY;
-		goto out;
-	}
+	if (WARN_ON(arvif->is_started))
+		return -EBUSY;
 
 	if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR) {
 		ret = ath12k_mac_monitor_start(ar);
 		if (ret)
-			goto out;
+			return ret;
 		arvif->is_started = true;
-		goto out;
+		return ret;
 	}
 
 	ret = ath12k_mac_vdev_start(arvif, ctx);
@@ -7647,7 +7642,7 @@ ath12k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
 		ath12k_warn(ab, "failed to start vdev %i addr %pM on freq %d: %d\n",
 			    arvif->vdev_id, vif->addr,
 			    ctx->def.chan->center_freq, ret);
-		goto out;
+		return ret;
 	}
 
 	if (arvif->vdev_type != WMI_VDEV_TYPE_MONITOR && ar->monitor_vdev_created)
@@ -7657,7 +7652,6 @@ ath12k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
 
 	/* TODO: Setup ps and cts/rts protection */
 
-out:
 	return ret;
 }
 
@@ -8125,10 +8119,8 @@ ath12k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
 	ldpc = !!(ar->ht_cap_info & WMI_HT_CAP_LDPC);
 
 	sgi = mask->control[band].gi;
-	if (sgi == NL80211_TXRATE_FORCE_LGI) {
-		ret = -EINVAL;
-		goto out;
-	}
+	if (sgi == NL80211_TXRATE_FORCE_LGI)
+		return -EINVAL;
 
 	/* mac80211 doesn't support sending a fixed HT/VHT MCS alone, rather it
 	 * requires passing at least one of used basic rates along with them.
@@ -8144,7 +8136,7 @@ ath12k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
 		if (ret) {
 			ath12k_warn(ar->ab, "failed to get single legacy rate for vdev %i: %d\n",
 				    arvif->vdev_id, ret);
-			goto out;
+			return ret;
 		}
 		ieee80211_iterate_stations_mtx(hw,
 					       ath12k_mac_disable_peer_fixed_rate,
@@ -8189,8 +8181,7 @@ ath12k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
 			 */
 			ath12k_warn(ar->ab,
 				    "Setting more than one MCS Value in bitrate mask not supported\n");
-			ret = -EINVAL;
-			goto out;
+			return -EINVAL;
 		}
 
 		ieee80211_iterate_stations_mtx(hw,
@@ -8209,7 +8200,6 @@ ath12k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
 			    arvif->vdev_id, ret);
 	}
 
-out:
 	return ret;
 }
 
@@ -8520,7 +8510,7 @@ static int ath12k_mac_op_remain_on_channel(struct ieee80211_hw *hw,
 	spin_unlock_bh(&ar->data_lock);
 
 	if (ret)
-		goto exit;
+		return ret;
 
 	scan_time_msec = hw->wiphy->max_remain_on_channel_duration * 2;
 
@@ -8529,10 +8519,8 @@ static int ath12k_mac_op_remain_on_channel(struct ieee80211_hw *hw,
 	arg.num_chan = 1;
 	arg.chan_list = kcalloc(arg.num_chan, sizeof(*arg.chan_list),
 				GFP_KERNEL);
-	if (!arg.chan_list) {
-		ret = -ENOMEM;
-		goto exit;
-	}
+	if (!arg.chan_list)
+		return -ENOMEM;
 
 	arg.vdev_id = arvif->vdev_id;
 	arg.scan_id = ATH12K_SCAN_ID;
@@ -8570,7 +8558,7 @@ static int ath12k_mac_op_remain_on_channel(struct ieee80211_hw *hw,
 
 free_chan_list:
 	kfree(arg.chan_list);
-exit:
+
 	return ret;
 }
 
-- 
2.39.5

[PATCH RFC v3 5/6] wifi: ath12k: ath12k_mac_op_set_key(): remove exit label

[Kalle Valo]

From: Kalle Valo <quic_kvalo@quicinc.com>

In ath12k_mac_op_set_key() removing the exit label was a bit more complex so do
it in a separate patch. Remove the else branch and remove now the uncessary ret
initialisation.

No functional changes.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/mac.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 47e8354bb436..c41740734fc8 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -3942,7 +3942,7 @@ static int ath12k_mac_set_key(struct ath12k *ar, enum set_key_cmd cmd,
 	struct ath12k_peer *peer;
 	struct ath12k_sta *arsta;
 	const u8 *peer_addr;
-	int ret = 0;
+	int ret;
 	u32 flags = 0;
 
 	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
@@ -3970,14 +3970,13 @@ static int ath12k_mac_set_key(struct ath12k *ar, enum set_key_cmd cmd,
 		if (cmd == SET_KEY) {
 			ath12k_warn(ab, "cannot install key for non-existent peer %pM\n",
 				    peer_addr);
-			ret = -EOPNOTSUPP;
-			goto exit;
-		} else {
-			/* if the peer doesn't exist there is no key to disable
-			 * anymore
-			 */
-			goto exit;
+			return -EOPNOTSUPP;
 		}
+
+		/* if the peer doesn't exist there is no key to disable
+		 * anymore
+		 */
+		return 0;
 	}
 
 	if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
@@ -3988,13 +3987,13 @@ static int ath12k_mac_set_key(struct ath12k *ar, enum set_key_cmd cmd,
 	ret = ath12k_install_key(arvif, key, cmd, peer_addr, flags);
 	if (ret) {
 		ath12k_warn(ab, "ath12k_install_key failed (%d)\n", ret);
-		goto exit;
+		return ret;
 	}
 
 	ret = ath12k_dp_rx_peer_pn_replay_config(arvif, peer_addr, cmd, key);
 	if (ret) {
 		ath12k_warn(ab, "failed to offload PN replay detection %d\n", ret);
-		goto exit;
+		return ret;
 	}
 
 	spin_lock_bh(&ab->base_lock);
@@ -4040,8 +4039,7 @@ static int ath12k_mac_set_key(struct ath12k *ar, enum set_key_cmd cmd,
 
 	spin_unlock_bh(&ab->base_lock);
 
-exit:
-	return ret;
+	return 0;
 }
 
 static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
-- 
2.39.5

[PATCH RFC v3 6/6] wifi: ath12k: ath12k_mac_op_sta_state(): clean up update_wk cancellation

[Kalle Valo]

From: Kalle Valo <quic_kvalo@quicinc.com>

Now that we have switched to using wiphy_lock() there's no need to have
update_wk cancel call separately, for consistency move it to the rest of code
handling IEEE80211_STA_NONE state.

No functional changes.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/mac.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index c41740734fc8..dfd02b0c6bfc 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -4566,11 +4566,6 @@ static int ath12k_mac_op_sta_state(struct ieee80211_hw *hw,
 	struct ath12k_peer *peer;
 	int ret = 0;
 
-	/* cancel must be done outside the mutex to avoid deadlock */
-	if ((old_state == IEEE80211_STA_NONE &&
-	     new_state == IEEE80211_STA_NOTEXIST))
-		wiphy_work_cancel(hw->wiphy, &arsta->update_wk);
-
 	ar = ath12k_get_ar_by_vif(hw, vif);
 	if (!ar) {
 		WARN_ON_ONCE(1);
@@ -4591,6 +4586,8 @@ static int ath12k_mac_op_sta_state(struct ieee80211_hw *hw,
 				    sta->addr, arvif->vdev_id);
 	} else if ((old_state == IEEE80211_STA_NONE &&
 		    new_state == IEEE80211_STA_NOTEXIST)) {
+		wiphy_work_cancel(hw->wiphy, &arsta->update_wk);
+
 		if (arvif->vdev_type == WMI_VDEV_TYPE_STA) {
 			ath12k_bss_disassoc(ar, arvif);
 			ret = ath12k_mac_vdev_stop(arvif);
-- 
2.39.5

Re: [PATCH RFC v3 3/6] wifi: ath12k: switch to using wiphy_lock() and remove ar->conf_mutex

[Kalle Valo]

Kalle Valo <kvalo@kernel.org> writes:

> From: Kalle Valo <quic_kvalo@quicinc.com>
>
> Switch from using driver specific ar->conf_mutex to wiphy->mtx. The benefits are:
>
> * one lock less and simplified locking
>
> * possibility to use wiphy_work_queue() without other locks
>
> Most of the mac80211 ops are called within wiphy_lock(), most notable exception
> being tx op. This can be checked with lockdep_assert_wiphy() from
> net/mac80211/driver-ops.[ch] and I veried that by manually going through all
> the ops in ath12k_ops which had lockdep_assert_wiphy().
>
> The conversion was simple:
>
> * All conf_mutex lock() and unlock() calls which
>   already were called under wiphy_lock() I replaced with
>   lockdep_assert_wiphy().
>
> * The rest of conf_mutex calls I replaced with wiphy_lock() and wiphy_unlock().
>
> * All lockdep_asset_held(conf_mutex) calls I replaced with
>   lockdep_assert_wiphy().
>
> One exception was in ath12k_core_post_reconfigure_recovery() where the wiphy
> lock needs to be taken before hw_mutex to avoid a lockdep warning.
>
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
>
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>

[...]

> @@ -6432,7 +6411,8 @@ static int ath12k_mac_vdev_create(struct ath12k *ar, struct ieee80211_vif *vif)
>  	int i;
>  	int ret, vdev_id;
>  
> -	lockdep_assert_held(&ar->conf_mutex);
> +	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
> +	lockdep_assert_wiphy(hw->wiphy);

The assert is twice, I'll fix that in v3.

-- 
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