5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dmitry Kandybka <d.kandybka@xxxxxxxxx>
[ Upstream commit 77c977327dfaa9ae2e154964cdb89ceb5c7b7cf1 ]
In 'rtw_coex_action_bt_a2dp_pan', 'wl_cpt_test' and 'bt_cpt_test' are
hardcoded to false, so corresponding 'table_case' and 'tdma_case'
assignments are never met.
Also 'rtw_coex_set_rf_para(rtwdev, chip->wl_rf_para_rx[1])' is never
executed. Assuming that CPT was never fully implemented, remove
lookalike leftovers. Compile tested only.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 76f631cb401f ("rtw88: coex: update the mechanism for A2DP + PAN")
Signed-off-by: Dmitry Kandybka <d.kandybka@xxxxxxxxx>
Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
Link: https://patch.msgid.link/20240809085310.10512-1-d.kandybka@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/wireless/realtek/rtw88/coex.c | 38 ++++++-----------------
1 file changed, 10 insertions(+), 28 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtw88/coex.c b/drivers/net/wireless/realtek/rtw88/coex.c
index 2551e228b5819..347fc36068edb 100644
--- a/drivers/net/wireless/realtek/rtw88/coex.c
+++ b/drivers/net/wireless/realtek/rtw88/coex.c
@@ -2103,7 +2103,6 @@ static void rtw_coex_action_bt_a2dp_pan(struct rtw_dev *rtwdev)
struct rtw_efuse *efuse = &rtwdev->efuse;
struct rtw_chip_info *chip = rtwdev->chip;
u8 table_case, tdma_case;
- bool wl_cpt_test = false, bt_cpt_test = false;
rtw_dbg(rtwdev, RTW_DBG_COEX, "[BTCoex], %s()\n", __func__);
@@ -2111,29 +2110,16 @@ static void rtw_coex_action_bt_a2dp_pan(struct rtw_dev *rtwdev)
rtw_coex_set_rf_para(rtwdev, chip->wl_rf_para_rx[0]);
if (efuse->share_ant) {
/* Shared-Ant */
- if (wl_cpt_test) {
- if (coex_stat->wl_gl_busy) {
- table_case = 20;
- tdma_case = 17;
- } else {
- table_case = 10;
- tdma_case = 15;
- }
- } else if (bt_cpt_test) {
- table_case = 26;
- tdma_case = 26;
- } else {
- if (coex_stat->wl_gl_busy &&
- coex_stat->wl_noisy_level == 0)
- table_case = 14;
- else
- table_case = 10;
+ if (coex_stat->wl_gl_busy &&
+ coex_stat->wl_noisy_level == 0)
+ table_case = 14;
+ else
+ table_case = 10;
- if (coex_stat->wl_gl_busy)
- tdma_case = 15;
- else
- tdma_case = 20;
- }
+ if (coex_stat->wl_gl_busy)
+ tdma_case = 15;
+ else
+ tdma_case = 20;
} else {
/* Non-Shared-Ant */
table_case = 112;
@@ -2144,11 +2130,7 @@ static void rtw_coex_action_bt_a2dp_pan(struct rtw_dev *rtwdev)
tdma_case = 120;
}
- if (wl_cpt_test)
- rtw_coex_set_rf_para(rtwdev, chip->wl_rf_para_rx[1]);
- else
- rtw_coex_set_rf_para(rtwdev, chip->wl_rf_para_rx[0]);
-
+ rtw_coex_set_rf_para(rtwdev, chip->wl_rf_para_rx[0]);
rtw_coex_table(rtwdev, false, table_case);
rtw_coex_tdma(rtwdev, false, tdma_case);
}
--
2.43.0
