Merge tag 'wireless-drivers-next-2020-12-03' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for v5.11

First set of patches for v5.11. rtw88 getting improvements to work
better with Bluetooth and other driver also getting some new features.
mhi-ath11k-immutable branch was pulled from mhi tree to avoid
conflicts with mhi tree.

Major changes:

rtw88
 * major bluetooth co-existance improvements
wilc1000
 * Wi-Fi Multimedia (WMM) support
ath11k
 * Fast Initial Link Setup (FILS) discovery and unsolicited broadcast
   probe response support
 * qcom,ath11k-calibration-variant Device Tree setting
 * cold boot calibration support
 * new DFS region: JP
wnc36xx
 * enable connection monitoring and keepalive in firmware
ath10k
 * firmware IRAM recovery feature
mhi
 * merge mhi-ath11k-immutable branch to make MHI API change go smoothly

* tag 'wireless-drivers-next-2020-12-03' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next: (180 commits)
  wl1251: remove trailing semicolon in macro definition
  airo: remove trailing semicolon in macro definition
  wilc1000: added queue support for WMM
  wilc1000: call complete() for failure in wilc_wlan_txq_add_cfg_pkt()
  wilc1000: free resource in wilc_wlan_txq_add_mgmt_pkt() for failure path
  wilc1000: free resource in wilc_wlan_txq_add_net_pkt() for failure path
  wilc1000: added 'ndo_set_mac_address' callback support
  brcmfmac: expose firmware config files through modinfo
  wlcore: Switch to using the new API kobj_to_dev()
  rtw88: coex: add feature to enhance HID coexistence performance
  rtw88: coex: upgrade coexistence A2DP mechanism
  rtw88: coex: add action for coexistence in hardware initial
  rtw88: coex: add function to avoid cck lock
  rtw88: coex: change the coexistence mechanism for WLAN connected
  rtw88: coex: change the coexistence mechanism for HID
  rtw88: coex: update AFH information while in free-run mode
  rtw88: coex: update the mechanism for A2DP + PAN
  rtw88: coex: add debug message
  rtw88: coex: run coexistence when WLAN entering/leaving LPS
  Revert "rtl8xxxu: Add Buffalo WI-U3-866D to list of supported devices"
  ...
====================

Link: https://lore.kernel.org/r/20201203185732.9CFA5C433ED@smtp.codeaurora.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

41 files changed, 1794 insertions, 670 deletions

diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
index fb57cc8b2e47..7a71f063015a 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
@@ -1628,17 +1628,17 @@ static void btc8723b2ant_action_wifi_link_process(struct btc_coexist
 static bool btc8723b2ant_action_wifi_idle_process(struct btc_coexist *btcoexist)
 {
 	struct rtl_priv *rtlpriv = btcoexist->adapter;
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1;
 	u8 ap_num = 0;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 		 coex_dm->switch_thres_offset - coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
 	      coex_dm->switch_thres_offset - coex_dm->switch_thres_offset;
-	bt_rssi_state = btc8723b2ant_bt_rssi_state(btcoexist, 2, tmp, 0);
+	btc8723b2ant_bt_rssi_state(btcoexist, 2, tmp, 0);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_U1_AP_NUM, &ap_num);
 
@@ -2764,10 +2764,10 @@ static void btc8723b2ant_tdma_duration_adjust(struct btc_coexist *btcoexist,
 /* SCO only or SCO+PAN(HS) */
 static void btc8723b2ant_action_sco(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, bt_rssi_state;
+	u8 bt_rssi_state;
 	u32 wifi_bw;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	bt_rssi_state = btc8723b2ant_bt_rssi_state(
 		btcoexist, 2, BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
 					       coex_dm->switch_thres_offset,
@@ -2807,12 +2807,12 @@ static void btc8723b2ant_action_sco(struct btc_coexist *btcoexist)
 
 static void btc8723b2ant_action_hid(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, bt_rssi_state;
+	u8 bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	bt_rssi_state = btc8723b2ant_bt_rssi_state(btcoexist, 2, tmp, 0);
 
 	btcoexist->btc_set_rf_reg(btcoexist, BTC_RF_A, 0x1, 0xfffff, 0x0);
@@ -2852,13 +2852,13 @@ static void btc8723b2ant_action_hid(struct btc_coexist *btcoexist)
 /* A2DP only / PAN(EDR) only/ A2DP+PAN(HS) */
 static void btc8723b2ant_action_a2dp(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 ap_num = 0;
 	u8 tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2, 40, 0);
 	bt_rssi_state = btc8723b2ant_bt_rssi_state(btcoexist, 2, tmp, 0);
 
@@ -2926,12 +2926,12 @@ static void btc8723b2ant_action_a2dp(struct btc_coexist *btcoexist)
 
 static void btc8723b2ant_action_a2dp_pan_hs(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
@@ -2973,12 +2973,12 @@ static void btc8723b2ant_action_a2dp_pan_hs(struct btc_coexist *btcoexist)
 
 static void btc8723b2ant_action_pan_edr(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
@@ -3025,13 +3025,13 @@ static void btc8723b2ant_action_pan_edr(struct btc_coexist *btcoexist)
 /* PAN(HS) only */
 static void btc8723b2ant_action_pan_hs(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
-	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
@@ -3063,12 +3063,12 @@ static void btc8723b2ant_action_pan_hs(struct btc_coexist *btcoexist)
 /* PAN(EDR) + A2DP */
 static void btc8723b2ant_action_pan_edr_a2dp(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
@@ -3118,12 +3118,12 @@ static void btc8723b2ant_action_pan_edr_a2dp(struct btc_coexist *btcoexist)
 
 static void btc8723b2ant_action_pan_edr_hid(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
@@ -3182,12 +3182,12 @@ static void btc8723b2ant_action_pan_edr_hid(struct btc_coexist *btcoexist)
 /* HID + A2DP + PAN(EDR) */
 static void btc8723b2ant_action_hid_a2dp_pan_edr(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
@@ -3241,13 +3241,13 @@ static void btc8723b2ant_action_hid_a2dp_pan_edr(struct btc_coexist *btcoexist)
 
 static void btc8723b2ant_action_hid_a2dp(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 ap_num = 0;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c
index 9f5e85be9764..a18dffc8753a 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c
@@ -1901,7 +1901,6 @@ static void btc8821a1ant_run_coexist_mechanism(struct btc_coexist *btcoexist)
 	bool increase_scan_dev_num = false;
 	bool bt_ctrl_agg_buf_size = false;
 	u8 agg_buf_size = 5;
-	u8 wifi_rssi_state = BTC_RSSI_STATE_HIGH;
 	u32 wifi_link_status = 0;
 	u32 num_of_wifi_link = 0;
 	bool wifi_under_5g = false;
@@ -1962,8 +1961,7 @@ static void btc8821a1ant_run_coexist_mechanism(struct btc_coexist *btcoexist)
 		btc8821a1ant_limited_tx(btcoexist, NORMAL_EXEC, 0, 0, 0, 0);
 	} else {
 		if (wifi_connected) {
-			wifi_rssi_state =
-				btc8821a1ant_wifi_rssi_state(btcoexist, 1, 2,
+			btc8821a1ant_wifi_rssi_state(btcoexist, 1, 2,
 							     30, 0);
 			btc8821a1ant_limited_tx(btcoexist,
 						NORMAL_EXEC, 1, 1,
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
index e53789f11b08..447caa4aad32 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
@@ -1448,17 +1448,15 @@ static void btc8821a2ant_init_coex_dm(struct btc_coexist *btcoexist)
 static void btc8821a2ant_action_bt_inquiry(struct btc_coexist *btcoexist)
 {
 	struct rtl_priv *rtlpriv = btcoexist->adapter;
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
 	bool wifi_connected = false;
 	bool low_pwr_disable = true;
 	bool scan = false, link = false, roam = false;
 
-	wifi_rssi_state =
-		btc8821a2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
-	wifi_rssi_state1 = btc8821a2ant_wifi_rssi_state(btcoexist, 1, 2,
+	btc8821a2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8821a2ant_wifi_rssi_state(btcoexist, 1, 2,
 				BT_8821A_2ANT_WIFI_RSSI_COEXSWITCH_THRES, 0);
-	bt_rssi_state = btc8821a2ant_bt_rssi_state(btcoexist,
-		2, BT_8821A_2ANT_BT_RSSI_COEXSWITCH_THRES, 0);
+	btc8821a2ant_bt_rssi_state(btcoexist,
+				2, BT_8821A_2ANT_BT_RSSI_COEXSWITCH_THRES, 0);
 
 	btcoexist->btc_set(btcoexist, BTC_SET_ACT_DISABLE_LOW_POWER,
 			   &low_pwr_disable);
@@ -1516,15 +1514,14 @@ static void btc8821a2ant_action_wifi_link_process(struct btc_coexist *btcoexist)
 static bool btc8821a2ant_action_wifi_idle_process(struct btc_coexist *btcoexist)
 {
 	struct rtl_priv *rtlpriv = btcoexist->adapter;
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1;
 	u8 ap_num = 0;
 
-	wifi_rssi_state =
-		btc8821a2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8821a2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8821a2ant_wifi_rssi_state(btcoexist, 1, 2,
 			BT_8821A_2ANT_WIFI_RSSI_COEXSWITCH_THRES - 20, 0);
-	bt_rssi_state = btc8821a2ant_bt_rssi_state(btcoexist,
-			2, BT_8821A_2ANT_BT_RSSI_COEXSWITCH_THRES, 0);
+	btc8821a2ant_bt_rssi_state(btcoexist,
+				2, BT_8821A_2ANT_BT_RSSI_COEXSWITCH_THRES, 0);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_U1_AP_NUM, &ap_num);
 
@@ -2987,11 +2984,11 @@ static void btc8821a2ant_action_pan_edr(struct btc_coexist *btcoexist)
 /* PAN(HS) only */
 static void btc8821a2ant_action_pan_hs(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state, bt_rssi_state;
 	u32 wifi_bw;
 
 	wifi_rssi_state = btc8821a2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
-	wifi_rssi_state1 = btc8821a2ant_wifi_rssi_state(btcoexist, 1, 2,
+	btc8821a2ant_wifi_rssi_state(btcoexist, 1, 2,
 				BT_8821A_2ANT_WIFI_RSSI_COEXSWITCH_THRES, 0);
 	bt_rssi_state = btc8821a2ant_bt_rssi_state(btcoexist,
 				2, BT_8821A_2ANT_BT_RSSI_COEXSWITCH_THRES, 0);
@@ -3274,11 +3271,11 @@ static void btc8821a2ant_act_hid_a2dp_pan_edr(struct btc_coexist *btcoexist)
 static void btc8821a2ant_action_hid_a2dp(struct btc_coexist *btcoexist)
 {
 	u32 wifi_bw;
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state, bt_rssi_state;
 	u8 ap_num = 0;
 
 	wifi_rssi_state = btc8821a2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
-	wifi_rssi_state1 = btc8821a2ant_wifi_rssi_state(btcoexist, 1, 2,
+	btc8821a2ant_wifi_rssi_state(btcoexist, 1, 2,
 				BT_8821A_2ANT_WIFI_RSSI_COEXSWITCH_THRES, 0);
 	bt_rssi_state = btc8821a2ant_bt_rssi_state(btcoexist,
 				3, BT_8821A_2ANT_BT_RSSI_COEXSWITCH_THRES, 37);
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
index 2c05369b79e4..be4c0e60d44d 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
@@ -47,30 +47,17 @@ static bool is_any_client_connect_to_ap(struct btc_coexist *btcoexist)
 {
 	struct rtl_priv *rtlpriv = btcoexist->adapter;
 	struct rtl_mac *mac = rtl_mac(rtlpriv);
-	struct rtl_sta_info *drv_priv;
-	u8 cnt = 0;
+	bool ret = false;
 
 	if (mac->opmode == NL80211_IFTYPE_ADHOC ||
 	    mac->opmode == NL80211_IFTYPE_MESH_POINT ||
 	    mac->opmode == NL80211_IFTYPE_AP) {
-		if (in_interrupt() > 0) {
-			list_for_each_entry(drv_priv, &rtlpriv->entry_list,
-					    list) {
-				cnt++;
-			}
-		} else {
-			spin_lock_bh(&rtlpriv->locks.entry_list_lock);
-			list_for_each_entry(drv_priv, &rtlpriv->entry_list,
-					    list) {
-				cnt++;
-			}
-			spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
-		}
+		spin_lock_bh(&rtlpriv->locks.entry_list_lock);
+		if (!list_empty(&rtlpriv->entry_list))
+			ret = true;
+		spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
 	}
-	if (cnt > 0)
-		return true;
-	else
-		return false;
+	return ret;
 }
 
 static bool halbtc_legacy(struct rtl_priv *adapter)
@@ -253,9 +240,6 @@ bool halbtc_send_bt_mp_operation(struct btc_coexist *btcoexist, u8 op_code,
 	rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
 		"btmpinfo wait req_num=%d wait=%ld\n", req_num, wait_ms);
 
-	if (in_interrupt())
-		return false;
-
 	if (wait_for_completion_timeout(&btcoexist->bt_mp_comp,
 					msecs_to_jiffies(wait_ms)) == 0) {
 		rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_DMESG,
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/hw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/hw.c
index 63f9ea21962f..bd9160b166c5 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/hw.c
@@ -1226,7 +1226,6 @@ static int _rtl88ee_set_media_status(struct ieee80211_hw *hw,
 	default:
 		pr_err("Network type %d not support!\n", type);
 		return 1;
-		break;
 	}
 
 	/* MSR_INFRA == Link in infrastructure network;
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c
index 9be032e8ec95..12d0b3a87af7 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c
@@ -1348,7 +1348,7 @@ static bool _rtl88e_phy_set_sw_chnl_cmdarray(struct swchnlcmd *cmdtable,
 
 static u8 _rtl88e_phy_path_a_iqk(struct ieee80211_hw *hw, bool config_pathb)
 {
-	u32 reg_eac, reg_e94, reg_e9c, reg_ea4;
+	u32 reg_eac, reg_e94, reg_e9c;
 	u8 result = 0x00;
 
 	rtl_set_bbreg(hw, 0xe30, MASKDWORD, 0x10008c1c);
@@ -1365,7 +1365,7 @@ static u8 _rtl88e_phy_path_a_iqk(struct ieee80211_hw *hw, bool config_pathb)
 	reg_eac = rtl_get_bbreg(hw, 0xeac, MASKDWORD);
 	reg_e94 = rtl_get_bbreg(hw, 0xe94, MASKDWORD);
 	reg_e9c = rtl_get_bbreg(hw, 0xe9c, MASKDWORD);
-	reg_ea4 = rtl_get_bbreg(hw, 0xea4, MASKDWORD);
+	rtl_get_bbreg(hw, 0xea4, MASKDWORD);
 
 	if (!(reg_eac & BIT(28)) &&
 	    (((reg_e94 & 0x03FF0000) >> 16) != 0x142) &&
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/trx.c b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/trx.c
index b9775eec4c54..c948dafa0c80 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/trx.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/trx.c
@@ -674,12 +674,12 @@ void rtl88ee_tx_fill_cmddesc(struct ieee80211_hw *hw,
 	u8 fw_queue = QSLT_BEACON;
 	__le32 *pdesc = (__le32 *)pdesc8;
 
-	dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
-					    skb->len, DMA_TO_DEVICE);
-
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 	__le16 fc = hdr->frame_control;
 
+	dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
+					    skb->len, DMA_TO_DEVICE);
+
 	if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) {
 		rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
 			"DMA mapping error\n");
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.c
index c0635309a92d..4165175cf5c0 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.c
@@ -527,12 +527,12 @@ void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw,
 	u8 fw_queue = QSLT_BEACON;
 	__le32 *pdesc = (__le32 *)pdesc8;
 
-	dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
-					    skb->len, DMA_TO_DEVICE);
-
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 	__le16 fc = hdr->frame_control;
 
+	dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
+					    skb->len, DMA_TO_DEVICE);
+
 	if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) {
 		rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
 			"DMA mapping error\n");
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c
index 2890a495a23e..8d2c6d8d32d9 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c
@@ -113,7 +113,7 @@ void rtl92c_read_chip_version(struct ieee80211_hw *hw)
 
 /**
  * writeLLT - LLT table write access
- * @io: io callback
+ * @hw: Pointer to the ieee80211_hw structure.
  * @address: LLT logical address.
  * @data: LLT data content
  *
@@ -145,11 +145,10 @@ bool rtl92c_llt_write(struct ieee80211_hw *hw, u32 address, u32 data)
 
 /**
  * rtl92c_init_LLT_table - Init LLT table
- * @io: io callback
- * @boundary:
+ * @hw: Pointer to the ieee80211_hw structure.
+ * @boundary: Page boundary.
  *
  * Realtek hardware access function.
- *
  */
 bool rtl92c_init_llt_table(struct ieee80211_hw *hw, u32 boundary)
 {
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c
index 1ad0cf37f60b..87f959d5d861 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c
@@ -448,7 +448,7 @@ static void _rtl_fill_usb_tx_desc(__le32 *txdesc)
 	set_tx_desc_first_seg(txdesc, 1);
 }
 
-/**
+/*
  *	For HW recovery information
  */
 static void _rtl_tx_desc_checksum(__le32 *txdesc)
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
index e34d33e73e52..68ec009ea157 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
@@ -2566,7 +2566,7 @@ static void _rtl92d_phy_lc_calibrate_sw(struct ieee80211_hw *hw, bool is2t)
 		}
 		RTPRINT(rtlpriv, FINIT, INIT_IQK,
 			"PHY_LCK finish delay for %d ms=2\n", timecount);
-		u4tmp = rtl_get_rfreg(hw, index, RF_SYN_G4, RFREG_OFFSET_MASK);
+		rtl_get_rfreg(hw, index, RF_SYN_G4, RFREG_OFFSET_MASK);
 		if (index == 0 && rtlhal->interfaceindex == 0) {
 			RTPRINT(rtlpriv, FINIT, INIT_IQK,
 				"path-A / 5G LCK\n");
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/trx.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/trx.c
index 8944712274b5..c02813fba934 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/trx.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/trx.c
@@ -664,12 +664,14 @@ void rtl92de_tx_fill_cmddesc(struct ieee80211_hw *hw,
 	struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 	u8 fw_queue = QSLT_BEACON;
-	dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
-					    skb->len, DMA_TO_DEVICE);
+
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 	__le16 fc = hdr->frame_control;
 	__le32 *pdesc = (__le32 *)pdesc8;
 
+	dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
+					    skb->len, DMA_TO_DEVICE);
+
 	if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) {
 		rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
 			"DMA mapping error\n");
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/hw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/hw.c
index a36dc6e726d2..f8a1de6e9849 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/hw.c
@@ -1132,7 +1132,6 @@ static int _rtl8723e_set_media_status(struct ieee80211_hw *hw,
 	default:
 		pr_err("Network type %d not support!\n", type);
 		return 1;
-		break;
 	}
 
 	/* MSR_INFRA == Link in infrastructure network;
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c
index fa0eed434d4f..fe9b407dc2af 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c
@@ -1147,10 +1147,8 @@ static void _rtl8723e_phy_iq_calibrate(struct ieee80211_hw *hw,
 
 	const u32 retrycount = 2;
 
-	u32 bbvalue;
-
 	if (t == 0) {
-		bbvalue = rtl_get_bbreg(hw, 0x800, MASKDWORD);
+		rtl_get_bbreg(hw, 0x800, MASKDWORD);
 
 		rtl8723_save_adda_registers(hw, adda_reg,
 					    rtlphy->adda_backup, 16);
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/trx.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/trx.c
index e3ee91b7ea8d..340b3d68a54e 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/trx.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/trx.c
@@ -528,12 +528,12 @@ void rtl8723e_tx_fill_cmddesc(struct ieee80211_hw *hw,
 	u8 fw_queue = QSLT_BEACON;
 	__le32 *pdesc = (__le32 *)pdesc8;
 
-	dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
-					    skb->len, DMA_TO_DEVICE);
-
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
 	__le16 fc = hdr->frame_control;
 
+	dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
+					    skb->len, DMA_TO_DEVICE);
+
 	if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) {
 		rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
 			"DMA mapping error\n");
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c
index f09f55b0468a..2b9313cb93db 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c
@@ -2178,7 +2178,7 @@ static u8 _get_right_chnl_place_for_iqk(u8 chnl)
 stati