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wifi: rtw89: drop invalid TX rate report of legacy rate

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Somehow, firmware could report invalid TX rate, and we consider the
invalid rate as 0 that will make a wrong decision. So, drop invalid
reports, and also suppress the warning message.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220610072610.27095-9-pkshih@realtek.com
This commit is contained in:
Ping-Ke Shih
2022-06-10 15:26:07 +08:00
committed by Kalle Valo
parent ad663693c1
commit 9a3a593cba
3 changed files with 17 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/wireless/realtek/rtw89/core.c
View File

@@ -155,18 +155,19 @@ static struct ieee80211_rate rtw89_bitrates[] = {
{ .bitrate = 540, .hw_value = 0x0b, },
};
u16 rtw89_ra_report_to_bitrate(struct rtw89_dev *rtwdev, u8 rpt_rate)
bool rtw89_ra_report_to_bitrate(struct rtw89_dev *rtwdev, u8 rpt_rate, u16 *bitrate)
{
struct ieee80211_rate rate;
if (unlikely(rpt_rate >= ARRAY_SIZE(rtw89_bitrates))) {
rtw89_info(rtwdev, "invalid rpt rate %d\n", rpt_rate);
return 0;
rtw89_debug(rtwdev, RTW89_DBG_UNEXP, "invalid rpt rate %d\n", rpt_rate);
return false;
}
rate = rtw89_bitrates[rpt_rate];
*bitrate = rate.bitrate;
return rate.bitrate;
return true;
}
static struct ieee80211_supported_band rtw89_sband_2ghz = {

2
drivers/net/wireless/realtek/rtw89/core.h
View File

@@ -3914,7 +3914,7 @@ int rtw89_core_acquire_sta_ba_entry(struct rtw89_sta *rtwsta, u8 tid, u8 *cam_id
int rtw89_core_release_sta_ba_entry(struct rtw89_sta *rtwsta, u8 tid, u8 *cam_idx);
void rtw89_vif_type_mapping(struct ieee80211_vif *vif, bool assoc);
int rtw89_chip_info_setup(struct rtw89_dev *rtwdev);
u16 rtw89_ra_report_to_bitrate(struct rtw89_dev *rtwdev, u8 rpt_rate);
bool rtw89_ra_report_to_bitrate(struct rtw89_dev *rtwdev, u8 rpt_rate, u16 *bitrate);
int rtw89_regd_init(struct rtw89_dev *rtwdev,
void (*reg_notifier)(struct wiphy *wiphy, struct regulatory_request *request));
void rtw89_regd_notifier(struct wiphy *wiphy, struct regulatory_request *request);

14
drivers/net/wireless/realtek/rtw89/phy.c
View File

@@ -1918,21 +1918,29 @@ static void rtw89_phy_c2h_ra_rpt_iter(void *data, struct ieee80211_sta *sta)
struct rtw89_ra_report *ra_report = &rtwsta->ra_report;
struct sk_buff *c2h = ra_data->c2h;
u8 mode, rate, bw, giltf, mac_id;
u16 legacy_bitrate;
bool valid;
mac_id = RTW89_GET_PHY_C2H_RA_RPT_MACID(c2h->data);
if (mac_id != rtwsta->mac_id)
return;
memset(ra_report, 0, sizeof(*ra_report));
rate = RTW89_GET_PHY_C2H_RA_RPT_MCSNSS(c2h->data);
bw = RTW89_GET_PHY_C2H_RA_RPT_BW(c2h->data);
giltf = RTW89_GET_PHY_C2H_RA_RPT_GILTF(c2h->data);
mode = RTW89_GET_PHY_C2H_RA_RPT_MD_SEL(c2h->data);
if (mode == RTW89_RA_RPT_MODE_LEGACY) {
valid = rtw89_ra_report_to_bitrate(rtwdev, rate, &legacy_bitrate);
if (!valid)
return;
}
memset(ra_report, 0, sizeof(*ra_report));
switch (mode) {
case RTW89_RA_RPT_MODE_LEGACY:
ra_report->txrate.legacy = rtw89_ra_report_to_bitrate(rtwdev, rate);
ra_report->txrate.legacy = legacy_bitrate;
break;
case RTW89_RA_RPT_MODE_HT:
ra_report->txrate.flags |= RATE_INFO_FLAGS_MCS;