diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index dc22162223ad..d5dbd610393e 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -4111,6 +4111,11 @@ struct wiphy_iftype_ext_capab { * @txq_limit: configuration of internal TX queue frame limit * @txq_memory_limit: configuration internal TX queue memory limit * @txq_quantum: configuration of internal TX queue scheduler quantum + * + * @support_mbssid: can HW support association with nontransmitted AP + * @support_only_he_mbssid: don't parse MBSSID elements if it is not + * HE AP, in order to avoid compatibility issues. + * @support_mbssid must be set for this to have any effect. */ struct wiphy { /* assign these fields before you register the wiphy */ @@ -4249,6 +4254,9 @@ struct wiphy { u32 txq_memory_limit; u32 txq_quantum; + u8 support_mbssid:1, + support_only_he_mbssid:1; + char priv[0] __aligned(NETDEV_ALIGN); }; diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 94d7fd892657..963fde433885 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -1422,6 +1422,11 @@ static void cfg80211_parse_mbssid_data(struct wiphy *wiphy, return; if (!cfg80211_find_ie(WLAN_EID_MULTIPLE_BSSID, ie, ielen)) return; + if (!wiphy->support_mbssid) + return; + if (wiphy->support_only_he_mbssid && + !cfg80211_find_ext_ie(WLAN_EID_EXT_HE_CAPABILITY, ie, ielen)) + return; new_ie = kmalloc(IEEE80211_MAX_DATA_LEN, gfp); if (!new_ie) @@ -1706,7 +1711,11 @@ cfg80211_inform_bss_frame_data(struct wiphy *wiphy, res = cfg80211_inform_single_bss_frame_data(wiphy, data, mgmt, len, NULL, gfp); - if (!res || !cfg80211_find_ie(WLAN_EID_MULTIPLE_BSSID, ie, ielen)) + if (!res || !wiphy->support_mbssid || + !cfg80211_find_ie(WLAN_EID_MULTIPLE_BSSID, ie, ielen)) + return res; + if (wiphy->support_only_he_mbssid && + !cfg80211_find_ext_ie(WLAN_EID_EXT_HE_CAPABILITY, ie, ielen)) return res; /* process each non-transmitting bss */