rtlwifi: btcoex: Use seq_file to dump btcoex status

We use seq_file to replace RT_TRACE to dump status, then we can use 'cat'
to access btcoex's status through debugfs.
(i.e. /sys/kernel/debug/rtlwifi/00-11-22-33-44-55-66/btcoex)
Other related changes are
1. implement btc_disp_dbg_msg() to access btcoex's common status.
2. remove obsolete field bt_exist
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8192e2ant.c

@@ -2704,11 +2704,11 @@ void ex_btc8192e2ant_init_coex_dm(struct btc_coexist *btcoexist)
 	btc8192e2ant_init_coex_dm(btcoexist);
 }
 
-void ex_btc8192e2ant_display_coex_info(struct btc_coexist *btcoexist)
+void ex_btc8192e2ant_display_coex_info(struct btc_coexist *btcoexist,
+				       struct seq_file *m)
 {
 	struct btc_board_info *board_info = &btcoexist->board_info;
 	struct btc_stack_info *stack_info = &btcoexist->stack_info;
-	struct rtl_priv *rtlpriv = btcoexist->adapter;
 	u8 u8tmp[4], i, bt_info_ext, ps_tdma_case = 0;
 	u16 u16tmp[4];
 	u32 u32tmp[4];
@@ -2719,34 +2719,23 @@ void ex_btc8192e2ant_display_coex_info(struct btc_coexist *btcoexist)
 	u8 wifi_dot11_chnl, wifi_hs_chnl;
 	u32 fw_ver = 0, bt_patch_ver = 0;
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n ============[BT Coexist info]============");
+	seq_puts(m, "\n ============[BT Coexist info]============");
 
 	if (btcoexist->manual_control) {
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n ===========[Under Manual Control]===========");
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n ==========================================");
-	}
-
-	if (!board_info->bt_exist) {
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n BT not exists !!!");
-		return;
+		seq_puts(m, "\n ===========[Under Manual Control]===========");
+		seq_puts(m, "\n ==========================================");
 	}
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d/ %d ", "Ant PG number/ Ant mechanism:",
+	seq_printf(m, "\n %-35s = %d/ %d ", "Ant PG number/ Ant mechanism:",
 		   board_info->pg_ant_num, board_info->btdm_ant_num);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s / %d",
-		 "BT stack/ hci ext ver",
+	seq_printf(m, "\n %-35s = %s / %d", "BT stack/ hci ext ver",
 		   ((stack_info->profile_notified) ? "Yes" : "No"),
 		   stack_info->hci_version);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_BT_PATCH_VER, &bt_patch_ver);
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_FW_VER, &fw_ver);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d_%d/ 0x%x/ 0x%x(%d)",
+	seq_printf(m, "\n %-35s = %d_%d/ 0x%x/ 0x%x(%d)",
 		   "CoexVer/ FwVer/ PatchVer",
 		   glcoex_ver_date_8192e_2ant, glcoex_ver_8192e_2ant,
 		   fw_ver, bt_patch_ver, bt_patch_ver);
@@ -2755,22 +2744,22 @@ void ex_btc8192e2ant_display_coex_info(struct btc_coexist *btcoexist)
 	btcoexist->btc_get(btcoexist, BTC_GET_U1_WIFI_DOT11_CHNL,
 			   &wifi_dot11_chnl);
 	btcoexist->btc_get(btcoexist, BTC_GET_U1_WIFI_HS_CHNL, &wifi_hs_chnl);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d / %d(%d)",
+	seq_printf(m, "\n %-35s = %d / %d(%d)",
 		   "Dot11 channel / HsMode(HsChnl)",
 		   wifi_dot11_chnl, bt_hs_on, wifi_hs_chnl);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %3ph ",
+	seq_printf(m, "\n %-35s = %3ph ",
 		   "H2C Wifi inform bt chnl Info", coex_dm->wifi_chnl_info);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_S4_WIFI_RSSI, &wifi_rssi);
 	btcoexist->btc_get(btcoexist, BTC_GET_S4_HS_RSSI, &bt_hs_rssi);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d",
 		   "Wifi rssi/ HS rssi", wifi_rssi, bt_hs_rssi);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_SCAN, &scan);
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_LINK, &link);
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_ROAM, &roam);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d/ %d ",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d ",
 		   "Wifi link/ roam/ scan", link, roam, scan);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_UNDER_5G, &wifi_under_5g);
@@ -2778,7 +2767,7 @@ void ex_btc8192e2ant_display_coex_info(struct btc_coexist *btcoexist)
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_BUSY, &wifi_busy);
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_TRAFFIC_DIRECTION,
 			   &wifi_traffic_dir);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s / %s/ %s ",
+	seq_printf(m, "\n %-35s = %s / %s/ %s ",
 		   "Wifi status", (wifi_under_5g ? "5G" : "2.4G"),
 		   ((BTC_WIFI_BW_LEGACY == wifi_bw) ? "Legacy" :
 			(((BTC_WIFI_BW_HT40 == wifi_bw) ? "HT40" : "HT20"))),
@@ -2786,7 +2775,7 @@ void ex_btc8192e2ant_display_coex_info(struct btc_coexist *btcoexist)
 			((BTC_WIFI_TRAFFIC_TX == wifi_traffic_dir) ?
 				"uplink" : "downlink")));
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = [%s/ %d/ %d] ",
+	seq_printf(m, "\n %-35s = [%s/ %d/ %d] ",
 		   "BT [status/ rssi/ retryCnt]",
 		   ((btcoexist->bt_info.bt_disabled) ? ("disabled") :
 		    ((coex_sta->c2h_bt_inquiry_page) ?
@@ -2797,72 +2786,71 @@ void ex_btc8192e2ant_display_coex_info(struct btc_coexist *btcoexist)
 			   coex_dm->bt_status) ? "connected-idle" : "busy")))),
 		   coex_sta->bt_rssi, coex_sta->bt_retry_cnt);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d / %d / %d / %d",
+	seq_printf(m, "\n %-35s = %d / %d / %d / %d",
 		   "SCO/HID/PAN/A2DP", stack_info->sco_exist,
 		   stack_info->hid_exist, stack_info->pan_exist,
 		   stack_info->a2dp_exist);
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_BT_LINK_INFO);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_BT_LINK_INFO, m);
 
 	bt_info_ext = coex_sta->bt_info_ext;
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s",
+	seq_printf(m, "\n %-35s = %s",
 		   "BT Info A2DP rate",
 		   (bt_info_ext&BIT0) ? "Basic rate" : "EDR rate");
 
 	for (i = 0; i < BT_INFO_SRC_8192E_2ANT_MAX; i++) {
 		if (coex_sta->bt_info_c2h_cnt[i]) {
-			RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-				 "\r\n %-35s = %7ph(%d)",
+			seq_printf(m, "\n %-35s = %7ph(%d)",
 				   glbt_info_src_8192e_2ant[i],
 				   coex_sta->bt_info_c2h[i],
 				   coex_sta->bt_info_c2h_cnt[i]);
 		}
 	}
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s/%s",
+	seq_printf(m, "\n %-35s = %s/%s",
 		   "PS state, IPS/LPS",
 		   ((coex_sta->under_ips ? "IPS ON" : "IPS OFF")),
 		   ((coex_sta->under_lps ? "LPS ON" : "LPS OFF")));
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_FW_PWR_MODE_CMD);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_FW_PWR_MODE_CMD, m);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x ", "SS Type",
+	seq_printf(m, "\n %-35s = 0x%x ", "SS Type",
 		   coex_dm->cur_ss_type);
 
 	/* Sw mechanism	*/
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s",
+	seq_printf(m, "\n %-35s",
 		   "============[Sw mechanism]============");
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d/ %d ",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d ",
 		   "SM1[ShRf/ LpRA/ LimDig]", coex_dm->cur_rf_rx_lpf_shrink,
 		   coex_dm->cur_low_penalty_ra, coex_dm->limited_dig);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d/ %d(0x%x) ",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d(0x%x) ",
 		   "SM2[AgcT/ AdcB/ SwDacSwing(lvl)]",
 		   coex_dm->cur_agc_table_en, coex_dm->cur_adc_back_off,
 		   coex_dm->cur_dac_swing_on, coex_dm->cur_dac_swing_lvl);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x ", "Rate Mask",
+	seq_printf(m, "\n %-35s = 0x%x ", "Rate Mask",
 		   btcoexist->bt_info.ra_mask);
 
 	/* Fw mechanism	*/
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s",
+	seq_printf(m, "\n %-35s",
 		   "============[Fw mechanism]============");
 
 	ps_tdma_case = coex_dm->cur_ps_tdma;
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %5ph case-%d (auto:%d)",
+	seq_printf(m,
+		   "\n %-35s = %5ph case-%d (auto:%d)",
 		   "PS TDMA", coex_dm->ps_tdma_para,
 		   ps_tdma_case, coex_dm->auto_tdma_adjust);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d ",
+	seq_printf(m, "\n %-35s = %d/ %d ",
 		   "DecBtPwr/ IgnWlanAct",
 		   coex_dm->cur_dec_bt_pwr, coex_dm->cur_ignore_wlan_act);
 
 	/* Hw setting */
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s",
+	seq_printf(m, "\n %-35s",
 		   "============[Hw setting]============");
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x",
 		   "RF-A, 0x1e initVal", coex_dm->bt_rf0x1e_backup);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/0x%x/0x%x/0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/0x%x/0x%x/0x%x",
 		   "backup ARFR1/ARFR2/RL/AMaxTime", coex_dm->backup_arfr_cnt1,
 		   coex_dm->backup_arfr_cnt2, coex_dm->backup_retry_limit,
 		   coex_dm->backup_ampdu_maxtime);
@@ -2871,57 +2859,56 @@ void ex_btc8192e2ant_display_coex_info(struct btc_coexist *btcoexist)
 	u32tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0x434);
 	u16tmp[0] = btcoexist->btc_read_2byte(btcoexist, 0x42a);
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x456);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/0x%x/0x%x/0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/0x%x/0x%x/0x%x",
 		   "0x430/0x434/0x42a/0x456",
 		   u32tmp[0], u32tmp[1], u16tmp[0], u8tmp[0]);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xc04);
 	u32tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0xd04);
 	u32tmp[2] = btcoexist->btc_read_4byte(btcoexist, 0x90c);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "0xc04/ 0xd04/ 0x90c", u32tmp[0], u32tmp[1], u32tmp[2]);
 
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x778);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x", "0x778",
-		 u8tmp[0]);
+	seq_printf(m, "\n %-35s = 0x%x", "0x778", u8tmp[0]);
 
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x92c);
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x930);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "0x92c/ 0x930", (u8tmp[0]), u32tmp[0]);
 
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x40);
 	u8tmp[1] = btcoexist->btc_read_1byte(btcoexist, 0x4f);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "0x40/ 0x4f", u8tmp[0], u8tmp[1]);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x550);
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x522);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "0x550(bcn ctrl)/0x522", u32tmp[0], u8tmp[0]);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xc50);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x", "0xc50(dig)",
+	seq_printf(m, "\n %-35s = 0x%x", "0xc50(dig)",
 		   u32tmp[0]);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x6c0);
 	u32tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0x6c4);
 	u32tmp[2] = btcoexist->btc_read_4byte(btcoexist, 0x6c8);
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x6cc);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x/ 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m,
+		   "\n %-35s = 0x%x/ 0x%x/ 0x%x/ 0x%x",
 		   "0x6c0/0x6c4/0x6c8/0x6cc(coexTable)",
 		   u32tmp[0], u32tmp[1], u32tmp[2], u8tmp[0]);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d",
 		   "0x770(hp rx[31:16]/tx[15:0])",
 		   coex_sta->high_priority_rx, coex_sta->high_priority_tx);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d",
 		   "0x774(lp rx[31:16]/tx[15:0])",
 		   coex_sta->low_priority_rx, coex_sta->low_priority_tx);
 	if (btcoexist->auto_report_2ant)
 		btc8192e2ant_monitor_bt_ctr(btcoexist);
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_COEX_STATISTICS);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_COEX_STATISTICS, m);
 }
 
 void ex_btc8192e2ant_ips_notify(struct btc_coexist *btcoexist, u8 type)

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8192e2ant.h

@@ -180,4 +180,5 @@ void ex_btc8192e2ant_stack_operation_notify(struct btc_coexist *btcoexist,
 					    u8 type);
 void ex_btc8192e2ant_halt_notify(struct btc_coexist *btcoexist);
 void ex_btc8192e2ant_periodical(struct btc_coexist *btcoexist);
-void ex_btc8192e2ant_display_coex_info(struct btc_coexist *btcoexist);
+void ex_btc8192e2ant_display_coex_info(struct btc_coexist *btcoexist,
+				       struct seq_file *m);

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c

@@ -2474,12 +2474,12 @@ void ex_btc8723b1ant_init_coex_dm(struct btc_coexist *btcoexist)
 	halbtc8723b1ant_query_bt_info(btcoexist);
 }
 
-void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist)
+void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist,
+				       struct seq_file *m)
 {
 	struct btc_board_info *board_info = &btcoexist->board_info;
 	struct btc_stack_info *stack_info = &btcoexist->stack_info;
 	struct btc_bt_link_info *bt_link_info = &btcoexist->bt_link_info;
-	struct rtl_priv *rtlpriv = btcoexist->adapter;
 	u8 u8tmp[4], i, bt_info_ext, pstdmacase = 0;
 	u16 u16tmp[4];
 	u32 u32tmp[4];
@@ -2491,36 +2491,30 @@ void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist)
 	u8 wifi_dot11_chnl, wifi_hs_chnl;
 	u32 fw_ver = 0, bt_patch_ver = 0;
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n ============[BT Coexist info]============");
+	seq_puts(m, "\n ============[BT Coexist info]============");
 
 	if (btcoexist->manual_control) {
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n ============[Under Manual Control]==========");
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n ==========================================");
+		seq_puts(m, "\n ============[Under Manual Control]==========");
+		seq_puts(m, "\n ==========================================");
 	}
 	if (btcoexist->stop_coex_dm) {
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n ============[Coex is STOPPED]============");
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n ==========================================");
+		seq_puts(m, "\n ============[Coex is STOPPED]============");
+		seq_puts(m, "\n ==========================================");
 	}
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d",
 		   "Ant PG Num/ Ant Mech/ Ant Pos:",
 		   board_info->pg_ant_num, board_info->btdm_ant_num,
 		   board_info->btdm_ant_pos);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s / %d",
+	seq_printf(m, "\n %-35s = %s / %d",
 		   "BT stack/ hci ext ver",
 		   ((stack_info->profile_notified) ? "Yes" : "No"),
 		   stack_info->hci_version);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_BT_PATCH_VER, &bt_patch_ver);
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_FW_VER, &fw_ver);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d_%x/ 0x%x/ 0x%x(%d)",
+	seq_printf(m, "\n %-35s = %d_%x/ 0x%x/ 0x%x(%d)",
 		   "CoexVer/ FwVer/ PatchVer",
 		   glcoex_ver_date_8723b_1ant, glcoex_ver_8723b_1ant,
 		   fw_ver, bt_patch_ver, bt_patch_ver);
@@ -2529,23 +2523,23 @@ void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist)
 	btcoexist->btc_get(btcoexist, BTC_GET_U1_WIFI_DOT11_CHNL,
 			   &wifi_dot11_chnl);
 	btcoexist->btc_get(btcoexist, BTC_GET_U1_WIFI_HS_CHNL, &wifi_hs_chnl);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d / %d(%d)",
+	seq_printf(m, "\n %-35s = %d / %d(%d)",
 		   "Dot11 channel / HsChnl(HsMode)",
 		   wifi_dot11_chnl, wifi_hs_chnl, bt_hs_on);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %3ph ",
+	seq_printf(m, "\n %-35s = %3ph ",
 		   "H2C Wifi inform bt chnl Info",
 		   coex_dm->wifi_chnl_info);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_S4_WIFI_RSSI, &wifi_rssi);
 	btcoexist->btc_get(btcoexist, BTC_GET_S4_HS_RSSI, &bt_hs_rssi);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d",
 		   "Wifi rssi/ HS rssi", wifi_rssi, bt_hs_rssi);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_SCAN, &scan);
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_LINK, &link);
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_ROAM, &roam);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d/ %d ",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d ",
 		   "Wifi link/ roam/ scan", link, roam, scan);
 
 	btcoexist->btc_get(btcoexist , BTC_GET_BL_WIFI_UNDER_5G,
@@ -2555,7 +2549,7 @@ void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist)
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_TRAFFIC_DIRECTION,
 			   &wifi_traffic_dir);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s / %s/ %s ",
+	seq_printf(m, "\n %-35s = %s / %s/ %s ",
 		   "Wifi status", (wifi_under_5g ? "5G" : "2.4G"),
 		   ((wifi_bw == BTC_WIFI_BW_LEGACY) ? "Legacy" :
 		    ((wifi_bw == BTC_WIFI_BW_HT40) ? "HT40" : "HT20")),
@@ -2565,7 +2559,7 @@ void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist)
 
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_LINK_STATUS,
 			   &wifi_link_status);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d/ %d/ %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d/ %d/ %d",
 		   "sta/vwifi/hs/p2pGo/p2pGc",
 		   ((wifi_link_status & WIFI_STA_CONNECTED) ? 1 : 0),
 		   ((wifi_link_status & WIFI_AP_CONNECTED) ? 1 : 0),
@@ -2573,7 +2567,7 @@ void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist)
 		   ((wifi_link_status & WIFI_P2P_GO_CONNECTED) ? 1 : 0),
 		   ((wifi_link_status & WIFI_P2P_GC_CONNECTED) ? 1 : 0));
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = [%s/ %d/ %d] ",
+	seq_printf(m, "\n %-35s = [%s/ %d/ %d] ",
 		   "BT [status/ rssi/ retryCnt]",
 		   ((coex_sta->bt_disabled) ? ("disabled") :
 		    ((coex_sta->c2h_bt_inquiry_page) ? ("inquiry/page scan") :
@@ -2585,79 +2579,75 @@ void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist)
 		       "connected-idle" : "busy")))),
 		       coex_sta->bt_rssi, coex_sta->bt_retry_cnt);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d / %d / %d / %d",
+	seq_printf(m, "\n %-35s = %d / %d / %d / %d",
 		   "SCO/HID/PAN/A2DP", bt_link_info->sco_exist,
 		   bt_link_info->hid_exist, bt_link_info->pan_exist,
 		   bt_link_info->a2dp_exist);
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_BT_LINK_INFO);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_BT_LINK_INFO, m);
 
 	bt_info_ext = coex_sta->bt_info_ext;
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s",
+	seq_printf(m, "\n %-35s = %s",
 		   "BT Info A2DP rate",
 		   (bt_info_ext & BIT0) ? "Basic rate" : "EDR rate");
 
 	for (i = 0; i < BT_INFO_SRC_8723B_1ANT_MAX; i++) {
 		if (coex_sta->bt_info_c2h_cnt[i]) {
-			RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-				 "\r\n %-35s = %7ph(%d)",
+			seq_printf(m, "\n %-35s = %7ph(%d)",
 				   glbt_info_src_8723b_1ant[i],
 				   coex_sta->bt_info_c2h[i],
 				   coex_sta->bt_info_c2h_cnt[i]);
 		}
 	}
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %s/%s, (0x%x/0x%x)",
+	seq_printf(m, "\n %-35s = %s/%s, (0x%x/0x%x)",
 		   "PS state, IPS/LPS, (lps/rpwm)",
 		   ((coex_sta->under_ips ? "IPS ON" : "IPS OFF")),
 		   ((coex_sta->under_lps ? "LPS ON" : "LPS OFF")),
 		   btcoexist->bt_info.lps_val,
 		   btcoexist->bt_info.rpwm_val);
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_FW_PWR_MODE_CMD);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_FW_PWR_MODE_CMD, m);
 
 	if (!btcoexist->manual_control) {
 		/* Sw mechanism	*/
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s",
+		seq_printf(m, "\n %-35s",
 			   "============[Sw mechanism]============");
 
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/",
+		seq_printf(m, "\n %-35s = %d/",
 			   "SM[LowPenaltyRA]", coex_dm->cur_low_penalty_ra);
 
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s/ %s/ %d ",
+		seq_printf(m, "\n %-35s = %s/ %s/ %d ",
 			   "DelBA/ BtCtrlAgg/ AggSize",
 			   (btcoexist->bt_info.reject_agg_pkt ? "Yes" : "No"),
 			   (btcoexist->bt_info.bt_ctrl_buf_size ? "Yes" : "No"),
 			   btcoexist->bt_info.agg_buf_size);
 
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x ",
+		seq_printf(m, "\n %-35s = 0x%x ",
 			   "Rate Mask", btcoexist->bt_info.ra_mask);
 
 		/* Fw mechanism	*/
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s",
+		seq_printf(m, "\n %-35s",
 			   "============[Fw mechanism]============");
 
 		pstdmacase = coex_dm->cur_ps_tdma;
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n %-35s = %5ph case-%d (auto:%d)",
+		seq_printf(m, "\n %-35s = %5ph case-%d (auto:%d)",
 			   "PS TDMA", coex_dm->ps_tdma_para,
 			   pstdmacase, coex_dm->auto_tdma_adjust);
 
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d ",
+		seq_printf(m, "\n %-35s = %d ",
 			   "IgnWlanAct", coex_dm->cur_ignore_wlan_act);
 
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x ",
+		seq_printf(m, "\n %-35s = 0x%x ",
 			   "Latest error condition(should be 0)",
 			   coex_dm->error_condition);
 	}
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d",
+	seq_printf(m, "\n %-35s = %d",
 		   "Coex Table Type", coex_sta->coex_table_type);
 
 	/* Hw setting */
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s",
+	seq_printf(m, "\n %-35s",
 		   "============[Hw setting]============");
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/0x%x/0x%x/0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/0x%x/0x%x/0x%x",
 		   "backup ARFR1/ARFR2/RL/AMaxTime", coex_dm->backup_arfr_cnt1,
 		   coex_dm->backup_arfr_cnt2, coex_dm->backup_retry_limit,
 		   coex_dm->backup_ampdu_max_time);
@@ -2666,28 +2656,28 @@ void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist)
 	u32tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0x434);
 	u16tmp[0] = btcoexist->btc_read_2byte(btcoexist, 0x42a);
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x456);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/0x%x/0x%x/0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/0x%x/0x%x/0x%x",
 		   "0x430/0x434/0x42a/0x456",
 		   u32tmp[0], u32tmp[1], u16tmp[0], u8tmp[0]);
 
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x778);
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x6cc);
 	u32tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0x880);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "0x778/0x6cc/0x880[29:25]", u8tmp[0], u32tmp[0],
 		   (u32tmp[1] & 0x3e000000) >> 25);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x948);
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x67);
 	u8tmp[1] = btcoexist->btc_read_1byte(btcoexist, 0x765);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "0x948/ 0x67[5] / 0x765",
 		   u32tmp[0], ((u8tmp[0] & 0x20) >> 5), u8tmp[1]);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x92c);
 	u32tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0x930);
 	u32tmp[2] = btcoexist->btc_read_4byte(btcoexist, 0x944);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "0x92c[1:0]/ 0x930[7:0]/0x944[1:0]",
 		   u32tmp[0] & 0x3, u32tmp[1] & 0xff, u32tmp[2] & 0x3);
 
@@ -2695,20 +2685,19 @@ void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist)
 	u8tmp[1] = btcoexist->btc_read_1byte(btcoexist, 0x40);
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x4c);
 	u8tmp[2] = btcoexist->btc_read_1byte(btcoexist, 0x64);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x/ 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x/ 0x%x",
 		   "0x38[11]/0x40/0x4c[24:23]/0x64[0]",
 		   ((u8tmp[0] & 0x8) >> 3), u8tmp[1],
 		    ((u32tmp[0] & 0x01800000) >> 23), u8tmp[2] & 0x1);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x550);
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x522);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "0x550(bcn ctrl)/0x522", u32tmp[0], u8tmp[0]);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xc50);
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x49c);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "0xc50(dig)/0x49c(null-drop)", u32tmp[0] & 0xff, u8tmp[0]);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xda0);
@@ -2727,26 +2716,26 @@ void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist)
 		   (u32tmp[3] & 0xffff);
 	fa_cck = (u8tmp[0] << 8) + u8tmp[1];
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "OFDM-CCA/OFDM-FA/CCK-FA",
 		 u32tmp[0] & 0xffff, fa_ofdm, fa_cck);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x6c0);
 	u32tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0x6c4);
 	u32tmp[2] = btcoexist->btc_read_4byte(btcoexist, 0x6c8);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "0x6c0/0x6c4/0x6c8(coexTable)",
 		   u32tmp[0], u32tmp[1], u32tmp[2]);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d",
 		   "0x770(high-pri rx/tx)", coex_sta->high_priority_rx,
 		   coex_sta->high_priority_tx);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d",
 		   "0x774(low-pri rx/tx)", coex_sta->low_priority_rx,
 		   coex_sta->low_priority_tx);
 	if (btcoexist->auto_report_1ant)
 		halbtc8723b1ant_monitor_bt_ctr(btcoexist);
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_COEX_STATISTICS);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_COEX_STATISTICS, m);
 }
 
 void ex_btc8723b1ant_ips_notify(struct btc_coexist *btcoexist, u8 type)

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.h

@@ -220,5 +220,6 @@ void ex_btc8723b1ant_halt_notify(struct btc_coexist *btcoexist);
 void ex_btc8723b1ant_pnp_notify(struct btc_coexist *btcoexist, u8 pnpstate);
 void ex_btc8723b1ant_coex_dm_reset(struct btc_coexist *btcoexist);
 void ex_btc8723b1ant_periodical(struct btc_coexist *btcoexist);
-void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist);
+void ex_btc8723b1ant_display_coex_info(struct btc_coexist *btcoexist,
+				       struct seq_file *m);
 void ex_btc8723b1ant_pnp_notify(struct btc_coexist *btcoexist, u8 pnp_state);

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c

@@ -3780,12 +3780,12 @@ void ex_btc8723b2ant_init_coex_dm(struct btc_coexist *btcoexist)
 	btc8723b2ant_init_coex_dm(btcoexist);
 }
 
-void ex_btc8723b2ant_display_coex_info(struct btc_coexist *btcoexist)
+void ex_btc8723b2ant_display_coex_info(struct btc_coexist *btcoexist,
+				       struct seq_file *m)
 {
 	struct btc_board_info *board_info = &btcoexist->board_info;
 	struct btc_stack_info *stack_info = &btcoexist->stack_info;
 	struct btc_bt_link_info *bt_link_info = &btcoexist->bt_link_info;
-	struct rtl_priv *rtlpriv = btcoexist->adapter;
 	u8 u8tmp[4], i, bt_info_ext, ps_tdma_case = 0;
 	u32 u32tmp[4];
 	bool roam = false, scan = false;
@@ -3797,34 +3797,25 @@ void ex_btc8723b2ant_display_coex_info(struct btc_coexist *btcoexist)
 	u32 fw_ver = 0, bt_patch_ver = 0;
 	u8 ap_num = 0;
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n ============[BT Coexist info]============");
+	seq_puts(m, "\n ============[BT Coexist info]============");
 
 	if (btcoexist->manual_control) {
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n ==========[Under Manual Control]============");
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n ==========================================");
-	}
-
-	if (!board_info->bt_exist) {
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n BT not exists !!!");
-		return;
+		seq_puts(m, "\n ==========[Under Manual Control]============");
+		seq_puts(m, "\n ==========================================");
 	}
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d ",
+	seq_printf(m, "\n %-35s = %d/ %d ",
 		   "Ant PG number/ Ant mechanism:",
 		   board_info->pg_ant_num, board_info->btdm_ant_num);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s / %d",
+	seq_printf(m, "\n %-35s = %s / %d",
 		   "BT stack/ hci ext ver",
 		   ((stack_info->profile_notified) ? "Yes" : "No"),
 		   stack_info->hci_version);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_BT_PATCH_VER, &bt_patch_ver);
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_FW_VER, &fw_ver);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d_%x/ 0x%x/ 0x%x(%d)",
+	seq_printf(m, "\n %-35s = %d_%x/ 0x%x/ 0x%x(%d)",
 		   "CoexVer/ FwVer/ PatchVer",
 		   glcoex_ver_date_8723b_2ant, glcoex_ver_8723b_2ant,
 		   fw_ver, bt_patch_ver, bt_patch_ver);
@@ -3834,23 +3825,23 @@ void ex_btc8723b2ant_display_coex_info(struct btc_coexist *btcoexist)
 			   &wifi_dot11_chnl);
 	btcoexist->btc_get(btcoexist, BTC_GET_U1_WIFI_HS_CHNL, &wifi_hs_chnl);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d / %d(%d)",
+	seq_printf(m, "\n %-35s = %d / %d(%d)",
 		   "Dot11 channel / HsChnl(HsMode)",
 		   wifi_dot11_chnl, wifi_hs_chnl, bt_hs_on);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %3ph ",
+	seq_printf(m, "\n %-35s = %3ph ",
 		   "H2C Wifi inform bt chnl Info", coex_dm->wifi_chnl_info);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_S4_WIFI_RSSI, &wifi_rssi);
 	btcoexist->btc_get(btcoexist, BTC_GET_S4_HS_RSSI, &bt_hs_rssi);
 	btcoexist->btc_get(btcoexist, BTC_GET_U1_AP_NUM, &ap_num);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d",
 		   "Wifi rssi/ HS rssi/ AP#", wifi_rssi, bt_hs_rssi, ap_num);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_SCAN, &scan);
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_LINK, &link);
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_ROAM, &roam);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d/ %d ",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d ",
 		   "Wifi link/ roam/ scan", link, roam, scan);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_UNDER_5G, &wifi_under_5g);
@@ -3858,7 +3849,7 @@ void ex_btc8723b2ant_display_coex_info(struct btc_coexist *btcoexist)
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_BUSY, &wifi_busy);
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_TRAFFIC_DIRECTION,
 			   &wifi_traffic_dir);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s / %s/ %s ",
+	seq_printf(m, "\n %-35s = %s / %s/ %s ",
 		   "Wifi status", (wifi_under_5g ? "5G" : "2.4G"),
 		 ((wifi_bw == BTC_WIFI_BW_LEGACY) ? "Legacy" :
 		 (((wifi_bw == BTC_WIFI_BW_HT40) ? "HT40" : "HT20"))),
@@ -3866,82 +3857,80 @@ void ex_btc8723b2ant_display_coex_info(struct btc_coexist *btcoexist)
 		 ((wifi_traffic_dir == BTC_WIFI_TRAFFIC_TX) ?
 		  "uplink" : "downlink")));
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d / %d / %d / %d",
+	seq_printf(m, "\n %-35s = %d / %d / %d / %d",
 		   "SCO/HID/PAN/A2DP",
 		   bt_link_info->sco_exist, bt_link_info->hid_exist,
 		   bt_link_info->pan_exist, bt_link_info->a2dp_exist);
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_BT_LINK_INFO);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_BT_LINK_INFO, m);
 
 	bt_info_ext = coex_sta->bt_info_ext;
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s",
+	seq_printf(m, "\n %-35s = %s",
 		   "BT Info A2DP rate",
 		   (bt_info_ext & BIT0) ? "Basic rate" : "EDR rate");
 
 	for (i = 0; i < BT_INFO_SRC_8723B_2ANT_MAX; i++) {
 		if (coex_sta->bt_info_c2h_cnt[i]) {
-			RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-				 "\r\n %-35s = %7ph(%d)",
+			seq_printf(m, "\n %-35s = %7ph(%d)",
 				   glbt_info_src_8723b_2ant[i],
 				   coex_sta->bt_info_c2h[i],
 				   coex_sta->bt_info_c2h_cnt[i]);
 		}
 	}
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s/%s",
+	seq_printf(m, "\n %-35s = %s/%s",
 		   "PS state, IPS/LPS",
 		   ((coex_sta->under_ips ? "IPS ON" : "IPS OFF")),
 		   ((coex_sta->under_lps ? "LPS ON" : "LPS OFF")));
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_FW_PWR_MODE_CMD);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_FW_PWR_MODE_CMD, m);
 
 	/* Sw mechanism	*/
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s", "============[Sw mechanism]============");
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d/ %d ",
+	seq_printf(m,
+		   "\n %-35s", "============[Sw mechanism]============");
+	seq_printf(m, "\n %-35s = %d/ %d/ %d ",
 		   "SM1[ShRf/ LpRA/ LimDig]", coex_dm->cur_rf_rx_lpf_shrink,
 		   coex_dm->cur_low_penalty_ra, coex_dm->limited_dig);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d/ %d(0x%x) ",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d(0x%x) ",
 		   "SM2[AgcT/ AdcB/ SwDacSwing(lvl)]",
 		   coex_dm->cur_agc_table_en, coex_dm->cur_adc_back_off,
 		   coex_dm->cur_dac_swing_on, coex_dm->cur_dac_swing_lvl);
 
 	/* Fw mechanism	*/
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s",
+	seq_printf(m, "\n %-35s",
 		   "============[Fw mechanism]============");
 
 	ps_tdma_case = coex_dm->cur_ps_tdma;
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %5ph case-%d (auto:%d)",
+	seq_printf(m, "\n %-35s = %5ph case-%d (auto:%d)",
 		   "PS TDMA", coex_dm->ps_tdma_para,
 		   ps_tdma_case, coex_dm->auto_tdma_adjust);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d ",
+	seq_printf(m, "\n %-35s = %d/ %d ",
 		   "DecBtPwr/ IgnWlanAct", coex_dm->cur_dec_bt_pwr_lvl,
 		   coex_dm->cur_ignore_wlan_act);
 
 	/* Hw setting */
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s",
+	seq_printf(m, "\n %-35s",
 		   "============[Hw setting]============");
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x",
 		   "RF-A, 0x1e initVal", coex_dm->bt_rf0x1e_backup);
 
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x778);
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x880);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "0x778/0x880[29:25]", u8tmp[0],
 		   (u32tmp[0] & 0x3e000000) >> 25);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x948);
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x67);
 	u8tmp[1] = btcoexist->btc_read_1byte(btcoexist, 0x765);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "0x948/ 0x67[5] / 0x765",
 		   u32tmp[0], ((u8tmp[0] & 0x20) >> 5), u8tmp[1]);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x92c);
 	u32tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0x930);
 	u32tmp[2] = btcoexist->btc_read_4byte(btcoexist, 0x944);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "0x92c[1:0]/ 0x930[7:0]/0x944[1:0]",
 		   u32tmp[0] & 0x3, u32tmp[1] & 0xff, u32tmp[2] & 0x3);
 
@@ -3949,20 +3938,19 @@ void ex_btc8723b2ant_display_coex_info(struct btc_coexist *btcoexist)
 	u8tmp[1] = btcoexist->btc_read_1byte(btcoexist, 0x40);
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x4c);
 	u8tmp[2] = btcoexist->btc_read_1byte(btcoexist, 0x64);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x/ 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x/ 0x%x",
 		   "0x38[11]/0x40/0x4c[24:23]/0x64[0]",
 		   ((u8tmp[0] & 0x8) >> 3), u8tmp[1],
 		   ((u32tmp[0] & 0x01800000) >> 23), u8tmp[2] & 0x1);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x550);
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x522);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "0x550(bcn ctrl)/0x522", u32tmp[0], u8tmp[0]);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xc50);
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x49c);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "0xc50(dig)/0x49c(null-drop)", u32tmp[0] & 0xff, u8tmp[0]);
 
 	u32tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xda0);
@@ -3981,7 +3969,7 @@ void ex_btc8723b2ant_display_coex_info(struct btc_coexist *btcoexist)
 		   (u32tmp[3] & 0xffff);
 	fa_cck = (u8tmp[0] << 8) + u8tmp[1];
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "OFDM-CCA/OFDM-FA/CCK-FA",
 		   u32tmp[0] & 0xffff, fa_ofdm, fa_cck);
 
@@ -3989,21 +3977,19 @@ void ex_btc8723b2ant_display_coex_info(struct btc_coexist *btcoexist)
 	u32tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0x6c4);
 	u32tmp[2] = btcoexist->btc_read_4byte(btcoexist, 0x6c8);
 	u8tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x6cc);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x/ 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x/ 0x%x",
 		   "0x6c0/0x6c4/0x6c8/0x6cc(coexTable)",
 		   u32tmp[0], u32tmp[1], u32tmp[2], u8tmp[0]);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d",
 		   "0x770(high-pri rx/tx)",
 		   coex_sta->high_priority_rx, coex_sta->high_priority_tx);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d",
 		   "0x774(low-pri rx/tx)", coex_sta->low_priority_rx,
 		   coex_sta->low_priority_tx);
 	if (btcoexist->auto_report_2ant)
 		btc8723b2ant_monitor_bt_ctr(btcoexist);
-	btcoexist->btc_disp_dbg_msg(btcoexist,
-	BTC_DBG_DISP_COEX_STATISTICS);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_COEX_STATISTICS, m);
 }
 
 void ex_btc8723b2ant_ips_notify(struct btc_coexist *btcoexist, u8 type)

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.h

@@ -195,7 +195,8 @@ void ex_btc8723b2ant_bt_info_notify(struct btc_coexist *btcoexist,
 				    u8 *tmpbuf, u8 length);
 void ex_btc8723b2ant_halt_notify(struct btc_coexist *btcoexist);
 void ex_btc8723b2ant_periodical(struct btc_coexist *btcoexist);
-void ex_btc8723b2ant_display_coex_info(struct btc_coexist *btcoexist);
+void ex_btc8723b2ant_display_coex_info(struct btc_coexist *btcoexist,
+				       struct seq_file *m);
 void ex_btc8723b2ant_pnp_notify(struct btc_coexist *btcoexist, u8 pnp_state);
 void ex_btc8723b2ant_pre_load_firmware(struct btc_coexist *btcoexist);
 void ex_btc8723b2ant_power_on_setting(struct btc_coexist *btcoexist);

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c

@@ -2172,12 +2172,12 @@ void ex_btc8821a1ant_init_coex_dm(struct btc_coexist *btcoexist)
 	btc8821a1ant_query_bt_info(btcoexist);
 }
 
-void ex_btc8821a1ant_display_coex_info(struct btc_coexist *btcoexist)
+void ex_btc8821a1ant_display_coex_info(struct btc_coexist *btcoexist,
+				       struct seq_file *m)
 {
 	struct btc_board_info *board_info = &btcoexist->board_info;
 	struct btc_stack_info *stack_info = &btcoexist->stack_info;
 	struct btc_bt_link_info *bt_link_info = &btcoexist->bt_link_info;
-	struct rtl_priv *rtlpriv = btcoexist->adapter;
 	u8 u1_tmp[4], i, bt_info_ext, ps_tdma_case = 0;
 	u16 u2_tmp[4];
 	u32 u4_tmp[4];
@@ -2188,44 +2188,31 @@ void ex_btc8821a1ant_display_coex_info(struct btc_coexist *btcoexist)
 	u8 wifi_dot11_chnl, wifi_hs_chnl;
 	u32 fw_ver = 0, bt_patch_ver = 0;
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n ============[BT Coexist info]============");
+	seq_puts(m, "\n ============[BT Coexist info]============");
 
 	if (btcoexist->manual_control) {
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n ============[Under Manual Control]============");
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n ==========================================");
+		seq_puts(m, "\n ============[Under Manual Control]============");
+		seq_puts(m, "\n ==========================================");
 	}
 	if (btcoexist->stop_coex_dm) {
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n ============[Coex is STOPPED]============");
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n ==========================================");
-	}
-
-	if (!board_info->bt_exist) {
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n BT not exists !!!");
-		return;
+		seq_puts(m, "\n ============[Coex is STOPPED]============");
+		seq_puts(m, "\n ==========================================");
 	}
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d/ %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d",
 		   "Ant PG Num/ Ant Mech/ Ant Pos:",
 		   board_info->pg_ant_num,
 		   board_info->btdm_ant_num,
 		   board_info->btdm_ant_pos);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %s / %d", "BT stack/ hci ext ver",
+	seq_printf(m, "\n %-35s = %s / %d", "BT stack/ hci ext ver",
 		   ((stack_info->profile_notified) ? "Yes" : "No"),
 		   stack_info->hci_version);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_BT_PATCH_VER,
 			   &bt_patch_ver);
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_FW_VER, &fw_ver);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d_%x/ 0x%x/ 0x%x(%d)",
+	seq_printf(m, "\n %-35s = %d_%x/ 0x%x/ 0x%x(%d)",
 		   "CoexVer/ FwVer/ PatchVer",
 		   glcoex_ver_date_8821a_1ant,
 		   glcoex_ver_8821a_1ant,
@@ -2238,27 +2225,23 @@ void ex_btc8821a1ant_display_coex_info(struct btc_coexist *btcoexist)
 			   &wifi_dot11_chnl);
 	btcoexist->btc_get(btcoexist, BTC_GET_U1_WIFI_HS_CHNL,
 			   &wifi_hs_chnl);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d / %d(%d)",
+	seq_printf(m, "\n %-35s = %d / %d(%d)",
 		   "Dot11 channel / HsChnl(HsMode)",
 		   wifi_dot11_chnl, wifi_hs_chnl, bt_hs_on);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %3ph ",
+	seq_printf(m, "\n %-35s = %3ph ",
 		   "H2C Wifi inform bt chnl Info",
 		   coex_dm->wifi_chnl_info);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_S4_WIFI_RSSI, &wifi_rssi);
 	btcoexist->btc_get(btcoexist, BTC_GET_S4_HS_RSSI, &bt_hs_rssi);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d/ %d", "Wifi rssi/ HS rssi",
+	seq_printf(m, "\n %-35s = %d/ %d", "Wifi rssi/ HS rssi",
 		   (int)wifi_rssi, (int)bt_hs_rssi);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_SCAN, &scan);
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_LINK, &link);
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_ROAM, &roam);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d/ %d/ %d ", "Wifi link/ roam/ scan",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d ", "Wifi link/ roam/ scan",
 		   link, roam, scan);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_UNDER_5G,
@@ -2269,16 +2252,15 @@ void ex_btc8821a1ant_display_coex_info(struct btc_coexist *btcoexist)
 			   &wifi_busy);
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_TRAFFIC_DIRECTION,
 			   &wifi_traffic_dir);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %s / %s/ %s ", "Wifi status",
+	seq_printf(m, "\n %-35s = %s / %s/ %s ", "Wifi status",
 		   (wifi_under_5g ? "5G" : "2.4G"),
 		   ((wifi_bw == BTC_WIFI_BW_LEGACY) ? "Legacy" :
 		   (((wifi_bw == BTC_WIFI_BW_HT40) ? "HT40" : "HT20"))),
 		   ((!wifi_busy) ? "idle" :
 		   ((wifi_traffic_dir == BTC_WIFI_TRAFFIC_TX) ?
 		   "uplink" : "downlink")));
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		   "\r\n %-35s = [%s/ %d/ %d] ", "BT [status/ rssi/ retryCnt]",
+	seq_printf(m, "\n %-35s = [%s/ %d/ %d] ",
+		   "BT [status/ rssi/ retryCnt]",
 		   ((coex_sta->bt_disabled) ? ("disabled") :
 		   ((coex_sta->c2h_bt_inquiry_page) ? ("inquiry/page scan") :
 		   ((BT_8821A_1ANT_BT_STATUS_NON_CONNECTED_IDLE ==
@@ -2289,87 +2271,74 @@ void ex_btc8821a1ant_display_coex_info(struct btc_coexist *btcoexist)
 		   "connected-idle" : "busy")))),
 		   coex_sta->bt_rssi, coex_sta->bt_retry_cnt);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d / %d / %d / %d", "SCO/HID/PAN/A2DP",
+	seq_printf(m, "\n %-35s = %d / %d / %d / %d", "SCO/HID/PAN/A2DP",
 		   bt_link_info->sco_exist,
 		   bt_link_info->hid_exist,
 		   bt_link_info->pan_exist,
 		   bt_link_info->a2dp_exist);
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_BT_LINK_INFO);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_BT_LINK_INFO, m);
 
 	bt_info_ext = coex_sta->bt_info_ext;
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %s",
+	seq_printf(m, "\n %-35s = %s",
 		   "BT Info A2DP rate",
 		   (bt_info_ext & BIT0) ?
 		   "Basic rate" : "EDR rate");
 
 	for (i = 0; i < BT_INFO_SRC_8821A_1ANT_MAX; i++) {
 		if (coex_sta->bt_info_c2h_cnt[i]) {
-			RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-				 "\r\n %-35s = %7ph(%d)",
+			seq_printf(m, "\n %-35s = %7ph(%d)",
 				   glbt_info_src_8821a_1ant[i],
 				   coex_sta->bt_info_c2h[i],
 				   coex_sta->bt_info_c2h_cnt[i]);
 		}
 	}
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %s/%s, (0x%x/0x%x)",
+	seq_printf(m, "\n %-35s = %s/%s, (0x%x/0x%x)",
 		   "PS state, IPS/LPS, (lps/rpwm)",
 		   ((coex_sta->under_ips ? "IPS ON" : "IPS OFF")),
 		   ((coex_sta->under_lps ? "LPS ON" : "LPS OFF")),
 		   btcoexist->bt_info.lps_val,
 		   btcoexist->bt_info.rpwm_val);
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_FW_PWR_MODE_CMD);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_FW_PWR_MODE_CMD, m);
 
 	if (!btcoexist->manual_control) {
 		/* Sw mechanism*/
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n %-35s",
+		seq_printf(m, "\n %-35s",
 			   "============[Sw mechanism]============");
 
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n %-35s = %d", "SM[LowPenaltyRA]",
+		seq_printf(m, "\n %-35s = %d", "SM[LowPenaltyRA]",
 			   coex_dm->cur_low_penalty_ra);
 
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n %-35s = %s/ %s/ %d ",
+		seq_printf(m, "\n %-35s = %s/ %s/ %d ",
 			   "DelBA/ BtCtrlAgg/ AggSize",
 			   (btcoexist->bt_info.reject_agg_pkt ? "Yes" : "No"),
 			   (btcoexist->bt_info.bt_ctrl_buf_size ? "Yes" : "No"),
 			   btcoexist->bt_info.agg_buf_size);
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n %-35s = 0x%x ", "Rate Mask",
+		seq_printf(m, "\n %-35s = 0x%x ", "Rate Mask",
 			   btcoexist->bt_info.ra_mask);
 
 		/* Fw mechanism */
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s",
+		seq_printf(m, "\n %-35s",
 			   "============[Fw mechanism]============");
 
 		ps_tdma_case = coex_dm->cur_ps_tdma;
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n %-35s = %5ph case-%d (auto:%d)",
+		seq_printf(m, "\n %-35s = %5ph case-%d (auto:%d)",
 			   "PS TDMA",
 			   coex_dm->ps_tdma_para,
 			   ps_tdma_case,
 			   coex_dm->auto_tdma_adjust);
 
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n %-35s = 0x%x ",
+		seq_printf(m, "\n %-35s = 0x%x ",
 			   "Latest error condition(should be 0)",
 			   coex_dm->error_condition);
 
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n %-35s = %d ", "IgnWlanAct",
+		seq_printf(m, "\n %-35s = %d ", "IgnWlanAct",
 			   coex_dm->cur_ignore_wlan_act);
 	}
 
 	/* Hw setting */
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s", "============[Hw setting]============");
+	seq_printf(m, "\n %-35s", "============[Hw setting]============");
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x/0x%x/0x%x/0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/0x%x/0x%x/0x%x",
 		   "backup ARFR1/ARFR2/RL/AMaxTime",
 		   coex_dm->backup_arfr_cnt1,
 		   coex_dm->backup_arfr_cnt2,
@@ -2380,26 +2349,22 @@ void ex_btc8821a1ant_display_coex_info(struct btc_coexist *btcoexist)
 	u4_tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0x434);
 	u2_tmp[0] = btcoexist->btc_read_2byte(btcoexist, 0x42a);
 	u1_tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x456);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x/0x%x/0x%x/0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/0x%x/0x%x/0x%x",
 		   "0x430/0x434/0x42a/0x456",
 		   u4_tmp[0], u4_tmp[1], u2_tmp[0], u1_tmp[0]);
 
 	u1_tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x778);
 	u4_tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xc58);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x/ 0x%x", "0x778/ 0xc58[29:25]",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x", "0x778/ 0xc58[29:25]",
 		   u1_tmp[0], (u4_tmp[0] & 0x3e000000) >> 25);
 
 	u1_tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x8db);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x", "0x8db[6:5]",
+	seq_printf(m, "\n %-35s = 0x%x", "0x8db[6:5]",
 		   ((u1_tmp[0] & 0x60) >> 5));
 
 	u1_tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x975);
 	u4_tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xcb4);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "0xcb4[29:28]/0xcb4[7:0]/0x974[9:8]",
 		   (u4_tmp[0] & 0x30000000) >> 28,
 		    u4_tmp[0] & 0xff,
@@ -2408,47 +2373,41 @@ void ex_btc8821a1ant_display_coex_info(struct btc_coexist *btcoexist)
 	u1_tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x40);
 	u4_tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x4c);
 	u1_tmp[1] = btcoexist->btc_read_1byte(btcoexist, 0x64);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "0x40/0x4c[24:23]/0x64[0]",
-		 u1_tmp[0], ((u4_tmp[0] & 0x01800000) >> 23), u1_tmp[1] & 0x1);
+		   u1_tmp[0], ((u4_tmp[0] & 0x01800000) >> 23),
+		   u1_tmp[1] & 0x1);
 
 	u4_tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x550);
 	u1_tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x522);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x/ 0x%x", "0x550(bcn ctrl)/0x522",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x", "0x550(bcn ctrl)/0x522",
 		   u4_tmp[0], u1_tmp[0]);
 
 	u4_tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xc50);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x", "0xc50(dig)",
+	seq_printf(m, "\n %-35s = 0x%x", "0xc50(dig)",
 		   u4_tmp[0] & 0xff);
 
 	u4_tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xf48);
 	u1_tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0xa5d);
 	u1_tmp[1] = btcoexist->btc_read_1byte(btcoexist, 0xa5c);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x/ 0x%x", "OFDM-FA/ CCK-FA",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x", "OFDM-FA/ CCK-FA",
 		   u4_tmp[0], (u1_tmp[0] << 8) + u1_tmp[1]);
 
 	u4_tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x6c0);
 	u4_tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0x6c4);
 	u4_tmp[2] = btcoexist->btc_read_4byte(btcoexist, 0x6c8);
 	u1_tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x6cc);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x/ 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x/ 0x%x",
 		   "0x6c0/0x6c4/0x6c8/0x6cc(coexTable)",
 		   u4_tmp[0], u4_tmp[1], u4_tmp[2], u1_tmp[0]);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d/ %d", "0x770(high-pri rx/tx)",
+	seq_printf(m, "\n %-35s = %d/ %d", "0x770(high-pri rx/tx)",
 		   coex_sta->high_priority_rx, coex_sta->high_priority_tx);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d/ %d", "0x774(low-pri rx/tx)",
+	seq_printf(m, "\n %-35s = %d/ %d", "0x774(low-pri rx/tx)",
 		   coex_sta->low_priority_rx, coex_sta->low_priority_tx);
 	if (btcoexist->auto_report_1ant)
 		btc8821a1ant_monitor_bt_ctr(btcoexist);
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_COEX_STATISTICS);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_COEX_STATISTICS, m);
 }
 
 void ex_btc8821a1ant_ips_notify(struct btc_coexist *btcoexist, u8 type)

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.h

@@ -186,7 +186,8 @@ void ex_btc8821a1ant_bt_info_notify(struct btc_coexist *btcoexist,
 void ex_btc8821a1ant_halt_notify(struct btc_coexist *btcoexist);
 void ex_btc8821a1ant_pnp_notify(struct btc_coexist *btcoexist, u8 pnpstate);
 void ex_btc8821a1ant_periodical(struct btc_coexist *btcoexist);
-void ex_btc8821a1ant_display_coex_info(struct btc_coexist *btcoexist);
+void ex_btc8821a1ant_display_coex_info(struct btc_coexist *btcoexist,
+				       struct seq_file *m);
 void ex_btc8821a1ant_dbg_control(struct btc_coexist *btcoexist, u8 op_code,
 				 u8 op_len, u8 *data);
 void ex_btc8821a1ant_pnp_notify(struct btc_coexist *btcoexist, u8 pnp_state);

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c

@@ -3657,11 +3657,11 @@ void ex_btc8821a2ant_init_coex_dm(struct btc_coexist *btcoexist)
 	btc8821a2ant_init_coex_dm(btcoexist);
 }
 
-void ex_btc8821a2ant_display_coex_info(struct btc_coexist *btcoexist)
+void ex_btc8821a2ant_display_coex_info(struct btc_coexist *btcoexist,
+				       struct seq_file *m)
 {
 	struct btc_board_info *board_info = &btcoexist->board_info;
 	struct btc_stack_info *stack_info = &btcoexist->stack_info;
-	struct rtl_priv *rtlpriv = btcoexist->adapter;
 	u8 u1tmp[4], i, bt_info_ext, ps_tdma_case = 0;
 	u32 u4tmp[4];
 	bool roam = false, scan = false, link = false, wifi_under_5g = false;
@@ -3671,32 +3671,22 @@ void ex_btc8821a2ant_display_coex_info(struct btc_coexist *btcoexist)
 	u8 wifi_dot_11_chnl, wifi_hs_chnl;
 	u32 fw_ver = 0, bt_patch_ver = 0;
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n ============[BT Coexist info]============");
-
-	if (!board_info->bt_exist) {
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n BT not exists !!!");
-		return;
-	}
+	seq_puts(m, "\n ============[BT Coexist info]============");
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d/ %d ", "Ant PG number/ Ant mechanism:",
+	seq_printf(m, "\n %-35s = %d/ %d ", "Ant PG number/ Ant mechanism:",
 		   board_info->pg_ant_num, board_info->btdm_ant_num);
 
 	if (btcoexist->manual_control) {
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n %-35s", "[Action Manual control]!!");
+		seq_printf(m, "\n %-35s", "[Action Manual control]!!");
 	}
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %s / %d", "BT stack/ hci ext ver",
+	seq_printf(m, "\n %-35s = %s / %d", "BT stack/ hci ext ver",
 		   ((stack_info->profile_notified) ? "Yes" : "No"),
 		   stack_info->hci_version);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_BT_PATCH_VER, &bt_patch_ver);
 	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_FW_VER, &fw_ver);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d_%d/ 0x%x/ 0x%x(%d)",
+	seq_printf(m, "\n %-35s = %d_%d/ 0x%x/ 0x%x(%d)",
 		   "CoexVer/ FwVer/ PatchVer",
 		   glcoex_ver_date_8821a_2ant, glcoex_ver_8821a_2ant,
 		   fw_ver, bt_patch_ver, bt_patch_ver);
@@ -3707,27 +3697,23 @@ void ex_btc8821a2ant_display_coex_info(struct btc_coexist *btcoexist)
 		BTC_GET_U1_WIFI_DOT11_CHNL, &wifi_dot_11_chnl);
 	btcoexist->btc_get(btcoexist,
 		BTC_GET_U1_WIFI_HS_CHNL, &wifi_hs_chnl);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d / %d(%d)",
+	seq_printf(m, "\n %-35s = %d / %d(%d)",
 		   "Dot11 channel / HsMode(HsChnl)",
 		   wifi_dot_11_chnl, bt_hs_on, wifi_hs_chnl);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %3ph ",
+	seq_printf(m, "\n %-35s = %3ph ",
 		   "H2C Wifi inform bt chnl Info",
 		   coex_dm->wifi_chnl_info);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_S4_WIFI_RSSI, &wifi_rssi);
 	btcoexist->btc_get(btcoexist, BTC_GET_S4_HS_RSSI, &bt_hs_rssi);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %ld/ %ld", "Wifi rssi/ HS rssi",
+	seq_printf(m, "\n %-35s = %ld/ %ld", "Wifi rssi/ HS rssi",
 		   wifi_rssi, bt_hs_rssi);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_SCAN, &scan);
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_LINK, &link);
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_ROAM, &roam);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d/ %d/ %d ", "Wifi link/ roam/ scan",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d ", "Wifi link/ roam/ scan",
 		   link, roam, scan);
 
 	btcoexist->btc_get(btcoexist,
@@ -3738,8 +3724,7 @@ void ex_btc8821a2ant_display_coex_info(struct btc_coexist *btcoexist)
 		BTC_GET_BL_WIFI_BUSY, &wifi_busy);
 	btcoexist->btc_get(btcoexist,
 		BTC_GET_U4_WIFI_TRAFFIC_DIRECTION, &wifi_traffic_dir);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %s / %s/ %s ", "Wifi status",
+	seq_printf(m, "\n %-35s = %s / %s/ %s ", "Wifi status",
 		   (wifi_under_5g ? "5G" : "2.4G"),
 		   ((BTC_WIFI_BW_LEGACY == wifi_bw) ? "Legacy" :
 		    (((BTC_WIFI_BW_HT40 == wifi_bw) ? "HT40" : "HT20"))),
@@ -3748,134 +3733,128 @@ void ex_btc8821a2ant_display_coex_info(struct btc_coexist *btcoexist)
 		     "uplink" : "downlink")));
 
 	if (stack_info->profile_notified) {
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n %-35s = %d / %d / %d / %d", "SCO/HID/PAN/A2DP",
+		seq_printf(m, "\n %-35s = %d / %d / %d / %d",
+			   "SCO/HID/PAN/A2DP",
 			   stack_info->sco_exist, stack_info->hid_exist,
 			   stack_info->pan_exist, stack_info->a2dp_exist);
 
 		btcoexist->btc_disp_dbg_msg(btcoexist,
-					    BTC_DBG_DISP_BT_LINK_INFO);
+					    BTC_DBG_DISP_BT_LINK_INFO,
+					    m);
 	}
 
 	bt_info_ext = coex_sta->bt_info_ext;
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s",
-		 "BT Info A2DP rate",
+	seq_printf(m, "\n %-35s = %s", "BT Info A2DP rate",
 		   (bt_info_ext&BIT0) ? "Basic rate" : "EDR rate");
 
 	for (i = 0; i < BT_INFO_SRC_8821A_2ANT_MAX; i++) {
 		if (coex_sta->bt_info_c2h_cnt[i]) {
-			RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-				 "\r\n %-35s = %7ph(%d)",
+			seq_printf(m, "\n %-35s = %7ph(%d)",
 				   glbt_info_src_8821a_2ant[i],
 				   coex_sta->bt_info_c2h[i],
 				   coex_sta->bt_info_c2h_cnt[i]);
 		}
 	}
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %s/%s",
+	seq_printf(m, "\n %-35s = %s/%s",
 		   "PS state, IPS/LPS",
 		   ((coex_sta->under_ips ? "IPS ON" : "IPS OFF")),
 		   ((coex_sta->under_lps ? "LPS ON" : "LPS OFF")));
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_FW_PWR_MODE_CMD);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_FW_PWR_MODE_CMD, m);
 
 	/* Sw mechanism*/
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s",
+	seq_printf(m, "\n %-35s",
 		   "============[Sw mechanism]============");
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = %d/ %d/ %d(0x%x) ",
+	seq_printf(m, "\n %-35s = %d/ %d/ %d(0x%x) ",
 		   "SM2[AgcT/ AdcB/ SwDacSwing(lvl)]",
 		   coex_dm->cur_agc_table_en, coex_dm->cur_adc_back_off,
 		   coex_dm->cur_dac_swing_on, coex_dm->cur_dac_swing_lvl);
 
 	/* Fw mechanism*/
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s",
+	seq_printf(m, "\n %-35s",
 		   "============[Fw mechanism]============");
 
 	if (!btcoexist->manual_control) {
 		ps_tdma_case = coex_dm->cur_ps_tdma;
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n %-35s = %5ph case-%d",
+		seq_printf(m, "\n %-35s = %5ph case-%d",
 			   "PS TDMA",
 			   coex_dm->ps_tdma_para, ps_tdma_case);
 
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "\r\n %-35s = %d/ %d ", "DecBtPwr/ IgnWlanAct",
+		seq_printf(m, "\n %-35s = %d/ %d ", "DecBtPwr/ IgnWlanAct",
 			   coex_dm->cur_dec_bt_pwr_lvl,
 			   coex_dm->cur_ignore_wlan_act);
 	}
 
 	/* Hw setting*/
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s", "============[Hw setting]============");
+	seq_printf(m, "\n %-35s", "============[Hw setting]============");
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-		 "\r\n %-35s = 0x%x", "RF-A, 0x1e initVal",
+	seq_printf(m, "\n %-35s = 0x%x", "RF-A, 0x1e initVal",
 		   coex_dm->bt_rf0x1e_backup);
 
 	u1tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x778);
 	u1tmp[1] = btcoexist->btc_read_1byte(btcoexist, 0x6cc);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x ",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x ",
 		   "0x778 (W_Act)/ 0x6cc (CoTab Sel)",
 		   u1tmp[0], u1tmp[1]);
 
 	u1tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x8db);
 	u1tmp[1] = btcoexist->btc_read_1byte(btcoexist, 0xc5b);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "0x8db(ADC)/0xc5b[29:25](DAC)",
 		   ((u1tmp[0] & 0x60) >> 5), ((u1tmp[1] & 0x3e) >> 1));
 
 	u4tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xcb4);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "0xcb4[7:0](ctrl)/ 0xcb4[29:28](val)",
 		   u4tmp[0] & 0xff, ((u4tmp[0] & 0x30000000) >> 28));
 
 	u1tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x40);
 	u4tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x4c);
 	u4tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0x974);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "0x40/ 0x4c[24:23]/ 0x974",
 		   u1tmp[0], ((u4tmp[0] & 0x01800000) >> 23), u4tmp[1]);
 
 	u4tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x550);
 	u1tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x522);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "0x550(bcn ctrl)/0x522",
 		   u4tmp[0], u1tmp[0]);
 
 	u4tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xc50);
 	u1tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0xa0a);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "0xc50(DIG)/0xa0a(CCK-TH)",
 		   u4tmp[0], u1tmp[0]);
 
 	u4tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0xf48);
 	u1tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0xa5b);
 	u1tmp[1] = btcoexist->btc_read_1byte(btcoexist, 0xa5c);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x",
 		   "OFDM-FA/ CCK-FA",
 		   u4tmp[0], (u1tmp[0] << 8) + u1tmp[1]);
 
 	u4tmp[0] = btcoexist->btc_read_4byte(btcoexist, 0x6c0);
 	u4tmp[1] = btcoexist->btc_read_4byte(btcoexist, 0x6c4);
 	u4tmp[2] = btcoexist->btc_read_4byte(btcoexist, 0x6c8);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x/ 0x%x/ 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x/ 0x%x/ 0x%x",
 		   "0x6c0/0x6c4/0x6c8",
 		   u4tmp[0], u4tmp[1], u4tmp[2]);
 
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d",
 		   "0x770 (hi-pri Rx/Tx)",
 		   coex_sta->high_priority_rx, coex_sta->high_priority_tx);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d",
+	seq_printf(m, "\n %-35s = %d/ %d",
 		   "0x774(low-pri Rx/Tx)",
 		   coex_sta->low_priority_rx, coex_sta->low_priority_tx);
 
 	/* Tx mgnt queue hang or not, 0x41b should = 0xf, ex: 0xd ==>hang*/
 	u1tmp[0] = btcoexist->btc_read_1byte(btcoexist, 0x41b);
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = 0x%x",
+	seq_printf(m, "\n %-35s = 0x%x",
 		   "0x41b (mgntQ hang chk == 0xf)",
 		   u1tmp[0]);
 
-	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_COEX_STATISTICS);
+	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_COEX_STATISTICS, m);
 }
 
 void ex_btc8821a2ant_ips_notify(struct btc_coexist *btcoexist, u8 type)

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.h

@@ -226,7 +226,8 @@ ex_btc8821a2ant_periodical(
 	);
 void
 ex_btc8821a2ant_display_coex_info(
-	struct btc_coexist *btcoexist
+	struct btc_coexist *btcoexist,
+	struct seq_file *m
 	);
 void ex_btc8821a2ant_pnp_notify(struct btc_coexist *btcoexist, u8 pnp_state);
 void ex_btc8821a2ant_pre_load_firmware(struct btc_coexist *btcoexist);

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c

@@ -653,6 +653,105 @@ static bool halbtc_set(void *void_btcoexist, u8 set_type, void *in_buf)
 	return ret;
 }
 
+static void halbtc_display_coex_statistics(struct btc_coexist *btcoexist,
+					   struct seq_file *m)
+{
+}
+
+static void halbtc_display_bt_link_info(struct btc_coexist *btcoexist,
+					struct seq_file *m)
+{
+}
+
+static void halbtc_display_wifi_status(struct btc_coexist *btcoexist,
+				       struct seq_file *m)
+{
+	struct rtl_priv *rtlpriv = btcoexist->adapter;
+	s32 wifi_rssi = 0, bt_hs_rssi = 0;
+	bool scan = false, link = false, roam = false, wifi_busy = false;
+	bool wifi_under_b_mode = false;
+	bool wifi_under_5g = false;
+	u32 wifi_bw = BTC_WIFI_BW_HT20;
+	u32 wifi_traffic_dir = BTC_WIFI_TRAFFIC_TX;
+	u32 wifi_freq = BTC_FREQ_2_4G;
+	u32 wifi_link_status = 0x0;
+	bool bt_hs_on = false, under_ips = false, under_lps = false;
+	bool low_power = false, dc_mode = false;
+	u8 wifi_chnl = 0, wifi_hs_chnl = 0, fw_ps_state;
+	u8 ap_num = 0;
+
+	wifi_link_status = halbtc_get_wifi_link_status(btcoexist);
+	seq_printf(m, "\n %-35s = %d/ %d/ %d/ %d/ %d",
+		   "STA/vWifi/HS/p2pGo/p2pGc",
+		   ((wifi_link_status & WIFI_STA_CONNECTED) ? 1 : 0),
+		   ((wifi_link_status & WIFI_AP_CONNECTED) ? 1 : 0),
+		   ((wifi_link_status & WIFI_HS_CONNECTED) ? 1 : 0),
+		   ((wifi_link_status & WIFI_P2P_GO_CONNECTED) ? 1 : 0),
+		   ((wifi_link_status & WIFI_P2P_GC_CONNECTED) ? 1 : 0));
+
+	btcoexist->btc_get(btcoexist, BTC_GET_BL_HS_OPERATION, &bt_hs_on);
+	btcoexist->btc_get(btcoexist, BTC_GET_U1_WIFI_DOT11_CHNL, &wifi_chnl);
+	btcoexist->btc_get(btcoexist, BTC_GET_U1_WIFI_HS_CHNL, &wifi_hs_chnl);
+	seq_printf(m, "\n %-35s = %d / %d(%d)",
+		   "Dot11 channel / HsChnl(High Speed)",
+		   wifi_chnl, wifi_hs_chnl, bt_hs_on);
+
+	btcoexist->btc_get(btcoexist, BTC_GET_S4_WIFI_RSSI, &wifi_rssi);
+	btcoexist->btc_get(btcoexist, BTC_GET_S4_HS_RSSI, &bt_hs_rssi);
+	seq_printf(m, "\n %-35s = %d/ %d",
+		   "Wifi rssi/ HS rssi",
+		   wifi_rssi - 100, bt_hs_rssi - 100);
+
+	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_SCAN, &scan);
+	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_LINK, &link);
+	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_ROAM, &roam);
+	seq_printf(m, "\n %-35s = %d/ %d/ %d ",
+		   "Wifi link/ roam/ scan",
+		   link, roam, scan);
+
+	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_UNDER_5G, &wifi_under_5g);
+	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_BW, &wifi_bw);
+	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_BUSY, &wifi_busy);
+	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_TRAFFIC_DIRECTION,
+			   &wifi_traffic_dir);
+	btcoexist->btc_get(btcoexist, BTC_GET_U1_AP_NUM, &ap_num);
+	wifi_freq = (wifi_under_5g ? BTC_FREQ_5G : BTC_FREQ_2_4G);
+	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_UNDER_B_MODE,
+			   &wifi_under_b_mode);
+
+	seq_printf(m, "\n %-35s = %s / %s/ %s/ AP=%d ",
+		   "Wifi freq/ bw/ traffic",
+		   gl_btc_wifi_freq_string[wifi_freq],
+		   ((wifi_under_b_mode) ? "11b" :
+		    gl_btc_wifi_bw_string[wifi_bw]),
+		   ((!wifi_busy) ? "idle" : ((BTC_WIFI_TRAFFIC_TX ==
+					      wifi_traffic_dir) ? "uplink" :
+					     "downlink")),
+		   ap_num);
+
+	/* power status	 */
+	dc_mode = true;	/*TODO*/
+	under_ips = rtlpriv->psc.inactive_pwrstate == ERFOFF ? 1 : 0;
+	under_lps = rtlpriv->psc.dot11_psmode == EACTIVE ? 0 : 1;
+	fw_ps_state = 0;
+	low_power = 0; /*TODO*/
+	seq_printf(m, "\n %-35s = %s%s%s%s",
+		   "Power Status",
+		   (dc_mode ? "DC mode" : "AC mode"),
+		   (under_ips ? ", IPS ON" : ""),
+		   (under_lps ? ", LPS ON" : ""),
+		   (low_power ? ", 32k" : ""));
+
+	seq_printf(m,
+		   "\n %-35s = %02x %02x %02x %02x %02x %02x (0x%x/0x%x)",
+		   "Power mode cmd(lps/rpwm)",
+		   btcoexist->pwr_mode_val[0], btcoexist->pwr_mode_val[1],
+		   btcoexist->pwr_mode_val[2], btcoexist->pwr_mode_val[3],
+		   btcoexist->pwr_mode_val[4], btcoexist->pwr_mode_val[5],
+		   btcoexist->bt_info.lps_val,
+		   btcoexist->bt_info.rpwm_val);
+}
+
 /************************************************************
  *		IO related function
  ************************************************************/
@@ -831,6 +930,26 @@ void halbtc_set_bt_reg(void *btc_context, u8 reg_type, u32 offset, u32 set_val)
 	}
 }
 
+static void halbtc_display_dbg_msg(void *bt_context, u8 disp_type,
+				   struct seq_file *m)
+{
+	struct btc_coexist *btcoexist = (struct btc_coexist *)bt_context;
+
+	switch (disp_type) {
+	case BTC_DBG_DISP_COEX_STATISTICS:
+		halbtc_display_coex_statistics(btcoexist, m);
+		break;
+	case BTC_DBG_DISP_BT_LINK_INFO:
+		halbtc_display_bt_link_info(btcoexist, m);
+		break;
+	case BTC_DBG_DISP_WIFI_STATUS:
+		halbtc_display_wifi_status(btcoexist, m);
+		break;
+	default:
+		break;
+	}
+}
+
 bool halbtc_under_ips(struct btc_coexist *btcoexist)
 {
 	struct rtl_priv *rtlpriv = btcoexist->adapter;
@@ -874,6 +993,7 @@ bool exhalbtc_initlize_variables(void)
 	btcoexist->btc_get_rf_reg = halbtc_get_rfreg;
 
 	btcoexist->btc_fill_h2c = halbtc_fill_h2c_cmd;
+	btcoexist->btc_disp_dbg_msg = halbtc_display_dbg_msg;
 
 	btcoexist->btc_get = halbtc_get;
 	btcoexist->btc_set = halbtc_set;
@@ -1523,17 +1643,17 @@ void exhalbtc_display_bt_coex_info(struct btc_coexist *btcoexist,
 
 	if (IS_HARDWARE_TYPE_8821(btcoexist->adapter)) {
 		if (btcoexist->board_info.btdm_ant_num == 2)
-			ex_btc8821a2ant_display_coex_info(btcoexist);
+			ex_btc8821a2ant_display_coex_info(btcoexist, m);
 		else if (btcoexist->board_info.btdm_ant_num == 1)
-			ex_btc8821a1ant_display_coex_info(btcoexist);
+			ex_btc8821a1ant_display_coex_info(btcoexist, m);
 	} else if (IS_HARDWARE_TYPE_8723B(btcoexist->adapter)) {
 		if (btcoexist->board_info.btdm_ant_num == 2)
-			ex_btc8723b2ant_display_coex_info(btcoexist);
+			ex_btc8723b2ant_display_coex_info(btcoexist, m);
 		else if (btcoexist->board_info.btdm_ant_num == 1)
-			ex_btc8723b1ant_display_coex_info(btcoexist);
+			ex_btc8723b1ant_display_coex_info(btcoexist, m);
 	} else if (IS_HARDWARE_TYPE_8192E(btcoexist->adapter)) {
 		if (btcoexist->board_info.btdm_ant_num == 2)
-			ex_btc8192e2ant_display_coex_info(btcoexist);
+			ex_btc8192e2ant_display_coex_info(btcoexist, m);
 	}
 
 	halbtc_normal_low_power(btcoexist);

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.h

@@ -152,7 +152,6 @@ struct btc_board_info {
 	u8 btdm_ant_num;	/* ant number for btdm */
 	u8 btdm_ant_pos;
 	u8 single_ant_path; /* current used for 8723b only, 1=>s0,  0=>s1 */
-	bool bt_exist;
 	bool tfbga_package;
 };
 
@@ -181,6 +180,12 @@ enum btc_wifi_role {
 	BTC_ROLE_MAX
 };
 
+enum btc_wireless_freq {
+	BTC_FREQ_2_4G = 0x0,
+	BTC_FREQ_5G = 0x1,
+	BTC_FREQ_MAX
+};
+
 enum btc_wifi_bw_mode {
 	BTC_WIFI_BW_LEGACY = 0x0,
 	BTC_WIFI_BW_HT20 = 0x1,
@@ -355,6 +360,7 @@ enum btc_dbg_disp_type {
 	BTC_DBG_DISP_BT_LINK_INFO = 0x1,
 	BTC_DBG_DISP_BT_FW_VER = 0x2,
 	BTC_DBG_DISP_FW_PWR_MODE_CMD = 0x3,
+	BTC_DBG_DISP_WIFI_STATUS = 0x04,
 	BTC_DBG_DISP_MAX
 };
 
@@ -458,7 +464,8 @@ typedef	bool (*bfp_btc_set)(void *btcoexist, u8 set_type, void *in_buf);
 typedef void (*bfp_btc_set_bt_reg)(void *btc_context, u8 reg_type, u32 offset,
 				   u32 value);
 
-typedef void (*bfp_btc_disp_dbg_msg)(void *btcoexist, u8 disp_type);
+typedef void (*bfp_btc_disp_dbg_msg)(void *btcoexist, u8 disp_type,
+				     struct seq_file *m);
 
 struct btc_bt_info {
 	bool bt_disabled;