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@@ -1,76 +0,0 @@
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---- a/net/mac80211/mlme.c
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-+++ b/net/mac80211/mlme.c
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-@@ -312,6 +312,38 @@ void ieee80211_send_nullfunc(struct ieee
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- ieee80211_tx_skb(sdata, skb);
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- }
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-
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-+static void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
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-+ struct ieee80211_sub_if_data *sdata)
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-+{
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-+ struct sk_buff *skb;
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-+ struct ieee80211_hdr *nullfunc;
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-+ __le16 fc;
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-+
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-+ if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
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-+ return;
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-+
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-+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30);
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-+ if (!skb) {
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-+ printk(KERN_DEBUG "%s: failed to allocate buffer for 4addr "
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-+ "nullfunc frame\n", sdata->name);
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-+ return;
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-+ }
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-+ skb_reserve(skb, local->hw.extra_tx_headroom);
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-+
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-+ nullfunc = (struct ieee80211_hdr *) skb_put(skb, 30);
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-+ memset(nullfunc, 0, 30);
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-+ fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
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-+ IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
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-+ nullfunc->frame_control = fc;
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-+ memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN);
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-+ memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
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-+ memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN);
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-+ memcpy(nullfunc->addr4, sdata->vif.addr, ETH_ALEN);
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-+
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-+ IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
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-+ ieee80211_tx_skb(sdata, skb);
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-+}
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-+
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- /* spectrum management related things */
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- static void ieee80211_chswitch_work(struct work_struct *work)
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- {
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-@@ -1120,6 +1152,13 @@ static bool ieee80211_assoc_success(stru
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- ieee80211_set_associated(sdata, cbss, changed);
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-
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- /*
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-+ * If we're using 4-addr mode, let the AP know that we're
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-+ * doing so, so that it can create the STA VLAN on its side
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-+ */
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-+ if (ifmgd->use_4addr)
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-+ ieee80211_send_4addr_nullfunc(local, sdata);
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-+
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-+ /*
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- * Start timer to probe the connection to the AP now.
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- * Also start the timer that will detect beacon loss.
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- */
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---- a/net/mac80211/rx.c
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-+++ b/net/mac80211/rx.c
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-@@ -1111,6 +1111,18 @@ ieee80211_rx_h_sta_process(struct ieee80
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- if (ieee80211_is_nullfunc(hdr->frame_control) ||
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- ieee80211_is_qos_nullfunc(hdr->frame_control)) {
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- I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc);
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-+
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-+ /*
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-+ * If we receive a 4-addr nullfunc frame from a STA
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-+ * that was not moved to a 4-addr STA vlan yet, drop
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-+ * the frame to the monitor interface, to make sure
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-+ * that hostapd sees it
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-+ */
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-+ if (ieee80211_has_a4(hdr->frame_control) &&
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-+ (rx->sdata->vif.type == NL80211_IFTYPE_AP ||
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-+ (rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
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-+ !rx->sdata->u.vlan.sta)))
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-+ return RX_DROP_MONITOR;
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- /*
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- * Update counter and free packet here to avoid
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- * counting this as a dropped packed.
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