wifi: rtw89: add wiphy_lock() to work that isn't held wiphy_lock() yet

[ Upstream commit ebfc919 ]

To ensure where are protected by driver mutex can also be protected by
wiphy_lock(), so afterward we can remove driver mutex safely.

Signed-off-by: Ping-Ke Shih <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Sasha Levin <[email protected]>

Author: Ping-Ke Shih

drivers/net/wireless/realtek/rtw89/regd.c

@@ -695,6 +695,7 @@ void rtw89_regd_notifier(struct wiphy *wiphy, struct regulatory_request *request
 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 	struct rtw89_dev *rtwdev = hw->priv;
 
+	wiphy_lock(wiphy);
 	mutex_lock(&rtwdev->mutex);
 	rtw89_leave_ps_mode(rtwdev);
 
@@ -712,6 +713,7 @@ void rtw89_regd_notifier(struct wiphy *wiphy, struct regulatory_request *request
 
 exit:
 	mutex_unlock(&rtwdev->mutex);
+	wiphy_unlock(wiphy);
 }
 
 /* Maximum Transmit Power field (@raw) can be EIRP or PSD.

drivers/net/wireless/realtek/rtw89/ser.c

@@ -156,9 +156,11 @@ static void ser_state_run(struct rtw89_ser *ser, u8 evt)
 	rtw89_debug(rtwdev, RTW89_DBG_SER, "ser: %s receive %s\n",
 		    ser_st_name(ser), ser_ev_name(ser, evt));
 
+	wiphy_lock(rtwdev->hw->wiphy);
 	mutex_lock(&rtwdev->mutex);
 	rtw89_leave_lps(rtwdev);
 	mutex_unlock(&rtwdev->mutex);
+	wiphy_unlock(rtwdev->hw->wiphy);
 
 	ser->st_tbl[ser->state].st_func(ser, evt);
 }
@@ -707,9 +709,11 @@ static void ser_l2_reset_st_hdl(struct rtw89_ser *ser, u8 evt)
 
 	switch (evt) {
 	case SER_EV_STATE_IN:
+		wiphy_lock(rtwdev->hw->wiphy);
 		mutex_lock(&rtwdev->mutex);
 		ser_l2_reset_st_pre_hdl(ser);
 		mutex_unlock(&rtwdev->mutex);
+		wiphy_unlock(rtwdev->hw->wiphy);
 
 		ieee80211_restart_hw(rtwdev->hw);
 		ser_set_alarm(ser, SER_RECFG_TIMEOUT, SER_EV_L2_RECFG_TIMEOUT);