diff mbox series

wifi: rtw88: remove CPT execution branch never used

Message ID 20240809085310.10512-1-d.kandybka@gmail.com
State New
Headers show
Series wifi: rtw88: remove CPT execution branch never used | expand

Commit Message

Dmitry Kandybka Aug. 9, 2024, 8:53 a.m. UTC 
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@gmail.com>
---
 drivers/net/wireless/realtek/rtw88/coex.c | 38 ++++++-----------------
 1 file changed, 10 insertions(+), 28 deletions(-)

Comments

Ping-Ke Shih Aug. 16, 2024, 11:43 a.m. UTC | #1 
Dmitry Kandybka <d.kandybka@gmail.com> wrote:

> 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@gmail.com>

1 patch(es) applied to rtw-next branch of rtw.git, thanks.

77c977327dfa wifi: rtw88: remove CPT execution branch never used

---
https://github.com/pkshih/rtw.git
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtw88/coex.c b/drivers/net/wireless/realtek/rtw88/coex.c
index de3332eb7a22..a99776af56c2 100644
--- a/drivers/net/wireless/realtek/rtw88/coex.c
+++ b/drivers/net/wireless/realtek/rtw88/coex.c
@@ -2194,7 +2194,6 @@  static void rtw_coex_action_bt_a2dp_pan(struct rtw_dev *rtwdev)
 	struct rtw_coex_stat *coex_stat = &coex->stat;
 	struct rtw_efuse *efuse = &rtwdev->efuse;
 	u8 table_case, tdma_case;
-	bool wl_cpt_test = false, bt_cpt_test = false;
 
 	rtw_dbg(rtwdev, RTW_DBG_COEX, "[BTCoex], %s()\n", __func__);
 
@@ -2202,29 +2201,16 @@  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;
@@ -2235,11 +2221,7 @@  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);
 }