[PATCH rtw-next] wifi: rtw89: wow: Add Basic Rate IE to probe request in scheduled scan mode

[Ping-Ke Shih <pkshih@realtek.com>]

From: Chin-Yen Lee <timlee@realtek.com>

In scheduled scan mode, the current probe request only includes the SSID
IE, but omits the Basic Rate IE. Some APs do not respond to such
incomplete probe requests, causing net-detect failures. To improve
interoperability and ensure APs respond correctly, add the Basic Rate IE
to the probe request in driver.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/wow.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw89/wow.c b/drivers/net/wireless/realtek/rtw89/wow.c
index 4f759c75389e..2ef9117fdd6e 100644
--- a/drivers/net/wireless/realtek/rtw89/wow.c
+++ b/drivers/net/wireless/realtek/rtw89/wow.c
@@ -1412,6 +1412,8 @@ static void rtw89_fw_release_pno_pkt_list(struct rtw89_dev *rtwdev,
 static int rtw89_pno_scan_update_probe_req(struct rtw89_dev *rtwdev,
 					   struct rtw89_vif_link *rtwvif_link)
 {
+	static const u8 basic_rate_ie[] = {WLAN_EID_SUPP_RATES, 0x08,
+		 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c};
 	struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
 	struct cfg80211_sched_scan_request *nd_config = rtw_wow->nd_config;
 	u8 num = nd_config->n_match_sets, i;
@@ -1423,10 +1425,11 @@ static int rtw89_pno_scan_update_probe_req(struct rtw89_dev *rtwdev,
 		skb = ieee80211_probereq_get(rtwdev->hw, rtwvif_link->mac_addr,
 					     nd_config->match_sets[i].ssid.ssid,
 					     nd_config->match_sets[i].ssid.ssid_len,
-					     nd_config->ie_len);
+					     nd_config->ie_len + sizeof(basic_rate_ie));
 		if (!skb)
 			return -ENOMEM;
 
+		skb_put_data(skb, basic_rate_ie, sizeof(basic_rate_ie));
 		skb_put_data(skb, nd_config->ie, nd_config->ie_len);
 
 		info = kzalloc(sizeof(*info), GFP_KERNEL);
-- 
2.25.1