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

Message ID 20240924092515.1049885-3-kvalo@kernel.org (mailing list archive)
State Superseded
Delegated to: Jeff Johnson
Headers show
Series wifi: ath12k: switch to using wiphy_lock() | expand

Commit Message

Kalle Valo Sept. 24, 2024, 9:25 a.m. UTC 
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(-)
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Patch

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,