[PATCH rtw-next v1 08/13] wifi: rtw89: Hide some errors when the device is unplugged

[Bitterblue Smith <rtl8821cerfe2@gmail.com>]

A few unnecessary error messages are printed when the device is
unplugged. "read swsi busy" in particular can appear ~1000 times when
RTL8851BU is unplugged.

Add a new flag RTW89_FLAG_UNPLUGGED and print some error messages only
when this flag is not set. The new USB driver will set the flag when
the device is unplugged.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
---
 drivers/net/wireless/realtek/rtw89/core.h |  1 +
 drivers/net/wireless/realtek/rtw89/mac.c  | 13 ++++++++-----
 drivers/net/wireless/realtek/rtw89/phy.c  |  3 ++-
 3 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index f17f046e773f..015eb38a5a14 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -4895,6 +4895,7 @@ enum rtw89_flags {
 	RTW89_FLAG_FORBIDDEN_TRACK_WROK,
 	RTW89_FLAG_CHANGING_INTERFACE,
 	RTW89_FLAG_HW_RFKILL_STATE,
+	RTW89_FLAG_UNPLUGGED,
 
 	NUM_OF_RTW89_FLAGS,
 };
diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c
index 1a03355b340f..99f01fff90fe 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.c
+++ b/drivers/net/wireless/realtek/rtw89/mac.c
@@ -88,7 +88,7 @@ int rtw89_mac_write_lte(struct rtw89_dev *rtwdev, const u32 offset, u32 val)
 
 	ret = read_poll_timeout(rtw89_read8, lte_ctrl, (lte_ctrl & BIT(5)) != 0,
 				50, 50000, false, rtwdev, R_AX_LTE_CTRL + 3);
-	if (ret)
+	if (ret && !test_bit(RTW89_FLAG_UNPLUGGED, rtwdev->flags))
 		rtw89_err(rtwdev, "[ERR]lte not ready(W)\n");
 
 	rtw89_write32(rtwdev, R_AX_LTE_WDATA, val);
@@ -104,7 +104,7 @@ int rtw89_mac_read_lte(struct rtw89_dev *rtwdev, const u32 offset, u32 *val)
 
 	ret = read_poll_timeout(rtw89_read8, lte_ctrl, (lte_ctrl & BIT(5)) != 0,
 				50, 50000, false, rtwdev, R_AX_LTE_CTRL + 3);
-	if (ret)
+	if (ret && !test_bit(RTW89_FLAG_UNPLUGGED, rtwdev->flags))
 		rtw89_err(rtwdev, "[ERR]lte not ready(W)\n");
 
 	rtw89_write32(rtwdev, R_AX_LTE_CTRL, 0x800F0000 | offset);
@@ -5842,13 +5842,15 @@ int rtw89_mac_coex_init(struct rtw89_dev *rtwdev, const struct rtw89_mac_ax_coex
 
 	ret = rtw89_mac_read_lte(rtwdev, R_AX_LTE_SW_CFG_2, &val32);
 	if (ret) {
-		rtw89_err(rtwdev, "Read R_AX_LTE_SW_CFG_2 fail!\n");
+		if (!test_bit(RTW89_FLAG_UNPLUGGED, rtwdev->flags))
+			rtw89_err(rtwdev, "Read R_AX_LTE_SW_CFG_2 fail!\n");
 		return ret;
 	}
 	val32 = val32 & B_AX_WL_RX_CTRL;
 	ret = rtw89_mac_write_lte(rtwdev, R_AX_LTE_SW_CFG_2, val32);
 	if (ret) {
-		rtw89_err(rtwdev, "Write R_AX_LTE_SW_CFG_2 fail!\n");
+		if (!test_bit(RTW89_FLAG_UNPLUGGED, rtwdev->flags))
+			rtw89_err(rtwdev, "Write R_AX_LTE_SW_CFG_2 fail!\n");
 		return ret;
 	}
 
@@ -5972,7 +5974,8 @@ int rtw89_mac_cfg_gnt(struct rtw89_dev *rtwdev,
 
 	ret = rtw89_mac_write_lte(rtwdev, R_AX_LTE_SW_CFG_1, val);
 	if (ret) {
-		rtw89_err(rtwdev, "Write LTE fail!\n");
+		if (!test_bit(RTW89_FLAG_UNPLUGGED, rtwdev->flags))
+			rtw89_err(rtwdev, "Write LTE fail!\n");
 		return ret;
 	}
 
diff --git a/drivers/net/wireless/realtek/rtw89/phy.c b/drivers/net/wireless/realtek/rtw89/phy.c
index 270f40e44c0b..dfff46b92730 100644
--- a/drivers/net/wireless/realtek/rtw89/phy.c
+++ b/drivers/net/wireless/realtek/rtw89/phy.c
@@ -895,7 +895,8 @@ static u32 rtw89_phy_read_rf_a(struct rtw89_dev *rtwdev,
 				       30, false, rtwdev, R_SWSI_V1,
 				       B_SWSI_R_DATA_DONE_V1);
 	if (ret) {
-		rtw89_err(rtwdev, "read swsi busy\n");
+		if (!test_bit(RTW89_FLAG_UNPLUGGED, rtwdev->flags))
+			rtw89_err(rtwdev, "read swsi busy\n");
 		return INV_RF_DATA;
 	}
 
-- 
2.49.0