From: Tzu-En Huang tehuang@realtek.com
commit 18a0696e85fde169e0109aa61d0505b2b935b59d upstream.
The level of cckpd is from 0 to 4, and it is the index of array pd_lvl[] and cs_lvl[]. However, the length of both arrays are 4, which is smaller than the possible maximum input index. Enumerate cck level to make sure the max level will not be wrong if new level is added in future.
Fixes: 479c4ee931a6 ("rtw88: add dynamic cck pd mechanism") Signed-off-by: Tzu-En Huang tehuang@realtek.com Signed-off-by: Yan-Hsuan Chuang yhchuang@realtek.com Signed-off-by: Kalle Valo kvalo@codeaurora.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/net/wireless/realtek/rtw88/phy.c | 17 ++++++++--------- drivers/net/wireless/realtek/rtw88/phy.h | 9 +++++++++ drivers/net/wireless/realtek/rtw88/rtw8822c.c | 4 ++-- 3 files changed, 19 insertions(+), 11 deletions(-)
--- a/drivers/net/wireless/realtek/rtw88/phy.c +++ b/drivers/net/wireless/realtek/rtw88/phy.c @@ -118,7 +118,7 @@ static void rtw_phy_cck_pd_init(struct r
for (i = 0; i <= RTW_CHANNEL_WIDTH_40; i++) { for (j = 0; j < RTW_RF_PATH_MAX; j++) - dm_info->cck_pd_lv[i][j] = 0; + dm_info->cck_pd_lv[i][j] = CCK_PD_LV0; }
dm_info->cck_fa_avg = CCK_FA_AVG_RESET; @@ -461,7 +461,6 @@ static void rtw_phy_dpk_track(struct rtw chip->ops->dpk_track(rtwdev); }
-#define CCK_PD_LV_MAX 5 #define CCK_PD_FA_LV1_MIN 1000 #define CCK_PD_FA_LV0_MAX 500
@@ -471,10 +470,10 @@ static u8 rtw_phy_cck_pd_lv_unlink(struc u32 cck_fa_avg = dm_info->cck_fa_avg;
if (cck_fa_avg > CCK_PD_FA_LV1_MIN) - return 1; + return CCK_PD_LV1;
if (cck_fa_avg < CCK_PD_FA_LV0_MAX) - return 0; + return CCK_PD_LV0;
return CCK_PD_LV_MAX; } @@ -494,15 +493,15 @@ static u8 rtw_phy_cck_pd_lv_link(struct u32 cck_fa_avg = dm_info->cck_fa_avg;
if (igi > CCK_PD_IGI_LV4_VAL && rssi > CCK_PD_RSSI_LV4_VAL) - return 4; + return CCK_PD_LV4; if (igi > CCK_PD_IGI_LV3_VAL && rssi > CCK_PD_RSSI_LV3_VAL) - return 3; + return CCK_PD_LV3; if (igi > CCK_PD_IGI_LV2_VAL || rssi > CCK_PD_RSSI_LV2_VAL) - return 2; + return CCK_PD_LV2; if (cck_fa_avg > CCK_PD_FA_LV1_MIN) - return 1; + return CCK_PD_LV1; if (cck_fa_avg < CCK_PD_FA_LV0_MAX) - return 0; + return CCK_PD_LV0;
return CCK_PD_LV_MAX; } --- a/drivers/net/wireless/realtek/rtw88/phy.h +++ b/drivers/net/wireless/realtek/rtw88/phy.h @@ -125,6 +125,15 @@ rtw_get_tx_power_params(struct rtw_dev * u8 rate, u8 bw, u8 ch, u8 regd, struct rtw_power_params *pwr_param);
+enum rtw_phy_cck_pd_lv { + CCK_PD_LV0, + CCK_PD_LV1, + CCK_PD_LV2, + CCK_PD_LV3, + CCK_PD_LV4, + CCK_PD_LV_MAX, +}; + #define MASKBYTE0 0xff #define MASKBYTE1 0xff00 #define MASKBYTE2 0xff0000 --- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c @@ -3168,8 +3168,8 @@ rtw8822c_phy_cck_pd_set_reg(struct rtw_d static void rtw8822c_phy_cck_pd_set(struct rtw_dev *rtwdev, u8 new_lvl) { struct rtw_dm_info *dm_info = &rtwdev->dm_info; - s8 pd_lvl[4] = {2, 4, 6, 8}; - s8 cs_lvl[4] = {2, 2, 2, 4}; + s8 pd_lvl[CCK_PD_LV_MAX] = {0, 2, 4, 6, 8}; + s8 cs_lvl[CCK_PD_LV_MAX] = {0, 2, 2, 2, 4}; u8 cur_lvl; u8 nrx, bw;