wifi: rtw89: wow: Add Basic Rate IE to probe request in scheduled scan mode

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>
Link: https://patch.msgid.link/20250716122926.6709-1-pkshih@realtek.com

diff --git a/drivers/net/wireless/realtek/rtw89/wow.c b/drivers/net/wireless/realtek/rtw89/wow.c
index 4dd471b6dd3060539aab7f823ba95fc5d0be5173..071c7577df52b24354d86c1fbf78e1b5f2a29049 100644 (file)
--- 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);