struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
					  struct ieee80211_vif *vif)
{
	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
	struct cfg80211_bss *cbss;
	struct sk_buff *skb;
	const u8 *ssid;
	int ssid_len;

	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
		return NULL;

	sdata_assert_lock(sdata);

	if (ifmgd->associated)
		cbss = ifmgd->associated;
	else if (ifmgd->auth_data)
		cbss = ifmgd->auth_data->bss;
	else if (ifmgd->assoc_data)
		cbss = ifmgd->assoc_data->bss;
	else
		return NULL;

	rcu_read_lock();
	ssid = ieee80211_bss_get_ie(cbss, WLAN_EID_SSID);
	if (WARN_ON_ONCE(ssid == NULL))
		ssid_len = 0;
	else
		ssid_len = ssid[1];

	skb = ieee80211_build_probe_req(sdata, sdata->vif.addr, cbss->bssid,
					(u32) -1, cbss->channel,
					ssid + 2, ssid_len,
					NULL, 0, IEEE80211_PROBE_FLAG_DIRECTED);
	rcu_read_unlock();

	return skb;
}
struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
					  struct ieee80211_vif *vif)
{
	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
	struct cfg80211_bss *cbss;
	struct sk_buff *skb;
	const u8 *ssid;
	int ssid_len;

	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
		return NULL;

	sdata_assert_lock(sdata);

	if (ifmgd->associated)
		cbss = ifmgd->associated;
	else if (ifmgd->auth_data)
		cbss = ifmgd->auth_data->bss;
	else if (ifmgd->assoc_data)
		cbss = ifmgd->assoc_data->bss;
	else
		return NULL;

	rcu_read_lock();
	ssid = ieee80211_bss_get_ie(cbss, WLAN_EID_SSID);
	if (WARN_ON_ONCE(ssid == NULL))
		ssid_len = 0;
	else
		ssid_len = ssid[1];

	skb = ieee80211_build_probe_req(sdata, sdata->vif.addr, cbss->bssid,
					(u32) -1, cbss->channel,
					ssid + 2, ssid_len,
					NULL, 0, IEEE80211_PROBE_FLAG_DIRECTED);
	rcu_read_unlock();

	return skb;
}