Merge tag 'mac80211-next-for-davem-2018-01-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
We have things all over the place, no point listing them.

One thing is notable: I applied two patches and later
reverted them - we'll get back to that once all the driver
situation is sorted out.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

21 files changed, 114 insertions, 87 deletions

diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index d444752dbf40..a8b1616cec41 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -153,27 +153,16 @@ EXPORT_SYMBOL(ieee80211_stop_rx_ba_session);
  */
 static void sta_rx_agg_session_timer_expired(struct timer_list *t)
 {
-	struct tid_ampdu_rx *tid_rx_timer =
-		from_timer(tid_rx_timer, t, session_timer);
-	struct sta_info *sta = tid_rx_timer->sta;
-	u8 tid = tid_rx_timer->tid;
-	struct tid_ampdu_rx *tid_rx;
+	struct tid_ampdu_rx *tid_rx = from_timer(tid_rx, t, session_timer);
+	struct sta_info *sta = tid_rx->sta;
+	u8 tid = tid_rx->tid;
 	unsigned long timeout;
 
-	rcu_read_lock();
-	tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[tid]);
-	if (!tid_rx) {
-		rcu_read_unlock();
-		return;
-	}
-
 	timeout = tid_rx->last_rx + TU_TO_JIFFIES(tid_rx->timeout);
 	if (time_is_after_jiffies(timeout)) {
 		mod_timer(&tid_rx->session_timer, timeout);
-		rcu_read_unlock();
 		return;
 	}
-	rcu_read_unlock();
 
 	ht_dbg(sta->sdata, "RX session timer expired on %pM tid %d\n",
 	       sta->sta.addr, tid);
@@ -415,10 +404,11 @@ end:
 					  timeout);
 }
 
-void __ieee80211_start_rx_ba_session(struct sta_info *sta,
-				     u8 dialog_token, u16 timeout,
-				     u16 start_seq_num, u16 ba_policy, u16 tid,
-				     u16 buf_size, bool tx, bool auto_seq)
+static void __ieee80211_start_rx_ba_session(struct sta_info *sta,
+					    u8 dialog_token, u16 timeout,
+					    u16 start_seq_num, u16 ba_policy,
+					    u16 tid, u16 buf_size, bool tx,
+					    bool auto_seq)
 {
 	mutex_lock(&sta->ampdu_mlme.mtx);
 	___ieee80211_start_rx_ba_session(sta, dialog_token, timeout,
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 5f8ab5be369f..595c662a61e8 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -392,7 +392,8 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 	 * telling the driver. New packets will not go through since
 	 * the aggregation session is no longer OPERATIONAL.
 	 */
-	synchronize_net();
+	if (!local->in_reconfig)
+		synchronize_net();
 
 	tid_tx->stop_initiator = reason == AGG_STOP_PEER_REQUEST ?
 					WLAN_BACK_RECIPIENT :
@@ -429,18 +430,12 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
  */
 static void sta_addba_resp_timer_expired(struct timer_list *t)
 {
-	struct tid_ampdu_tx *tid_tx_timer =
-		from_timer(tid_tx_timer, t, addba_resp_timer);
-	struct sta_info *sta = tid_tx_timer->sta;
-	u8 tid = tid_tx_timer->tid;
-	struct tid_ampdu_tx *tid_tx;
+	struct tid_ampdu_tx *tid_tx = from_timer(tid_tx, t, addba_resp_timer);
+	struct sta_info *sta = tid_tx->sta;
+	u8 tid = tid_tx->tid;
 
 	/* check if the TID waits for addBA response */
-	rcu_read_lock();
-	tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]);
-	if (!tid_tx ||
-	    test_bit(HT_AGG_STATE_RESPONSE_RECEIVED, &tid_tx->state)) {
-		rcu_read_unlock();
+	if (test_bit(HT_AGG_STATE_RESPONSE_RECEIVED, &tid_tx->state)) {
 		ht_dbg(sta->sdata,
 		       "timer expired on %pM tid %d not expecting addBA response\n",
 		       sta->sta.addr, tid);
@@ -451,7 +446,6 @@ static void sta_addba_resp_timer_expired(struct timer_list *t)
 	       sta->sta.addr, tid);
 
 	ieee80211_stop_tx_ba_session(&sta->sta, tid);
-	rcu_read_unlock();
 }
 
 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
@@ -529,29 +523,21 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
  */
 static void sta_tx_agg_session_timer_expired(struct timer_list *t)
 {
-	struct tid_ampdu_tx *tid_tx_timer =
-		from_timer(tid_tx_timer, t, session_timer);
-	struct sta_info *sta = tid_tx_timer->sta;
-	u8 tid = tid_tx_timer->tid;
-	struct tid_ampdu_tx *tid_tx;
+	struct tid_ampdu_tx *tid_tx = from_timer(tid_tx, t, session_timer);
+	struct sta_info *sta = tid_tx->sta;
+	u8 tid = tid_tx->tid;
 	unsigned long timeout;
 
-	rcu_read_lock();
-	tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]);
-	if (!tid_tx || test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) {
-		rcu_read_unlock();
+	if (test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) {
 		return;
 	}
 
 	timeout = tid_tx->last_tx + TU_TO_JIFFIES(tid_tx->timeout);
 	if (time_is_after_jiffies(timeout)) {
 		mod_timer(&tid_tx->session_timer, timeout);
-		rcu_read_unlock();
 		return;
 	}
 
-	rcu_read_unlock();
-
 	ht_dbg(sta->sdata, "tx session timer expired on %pM tid %d\n",
 	       sta->sta.addr, tid);
 
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index fb15d3b97cb2..46028e12e216 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -573,10 +573,12 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 		BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 			     offsetof(typeof(kseq), aes_cmac));
+		/* fall through */
 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 		BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 			     offsetof(typeof(kseq), aes_gmac));
+		/* fall through */
 	case WLAN_CIPHER_SUITE_GCMP:
 	case WLAN_CIPHER_SUITE_GCMP_256:
 		BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
@@ -2205,6 +2207,7 @@ static int ieee80211_scan(struct wiphy *wiphy,
 		 * for now fall through to allow scanning only when
 		 * beaconing hasn't been configured yet
 		 */
+		/* fall through */
 	case NL80211_IFTYPE_AP:
 		/*
 		 * If the scan has been forced (and the driver supports
@@ -2373,10 +2376,17 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy,
 	struct ieee80211_sub_if_data *sdata;
 	enum nl80211_tx_power_setting txp_type = type;
 	bool update_txp_type = false;
+	bool has_monitor = false;
 
 	if (wdev) {
 		sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 
+		if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
+			sdata = rtnl_dereference(local->monitor_sdata);
+			if (!sdata)
+				return -EOPNOTSUPP;
+		}
+
 		switch (type) {
 		case NL80211_TX_POWER_AUTOMATIC:
 			sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
@@ -2415,15 +2425,34 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy,
 
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
+			has_monitor = true;
+			continue;
+		}
 		sdata->user_power_level = local->user_power_level;
 		if (txp_type != sdata->vif.bss_conf.txpower_type)
 			update_txp_type = true;
 		sdata->vif.bss_conf.txpower_type = txp_type;
 	}
-	list_for_each_entry(sdata, &local->interfaces, list)
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
+			continue;
 		ieee80211_recalc_txpower(sdata, update_txp_type);
+	}
 	mutex_unlock(&local->iflist_mtx);
 
+	if (has_monitor) {
+		sdata = rtnl_dereference(local->monitor_sdata);
+		if (sdata) {
+			sdata->user_power_level = local->user_power_level;
+			if (txp_type != sdata->vif.bss_conf.txpower_type)
+				update_txp_type = true;
+			sdata->vif.bss_conf.txpower_type = txp_type;
+
+			ieee80211_recalc_txpower(sdata, update_txp_type);
+		}
+	}
+
 	return 0;
 }
 
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 5fae001f286c..1f466d12a6bc 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -211,6 +211,7 @@ static const char *hw_flag_names[] = {
 	FLAG(TX_FRAG_LIST),
 	FLAG(REPORTS_LOW_ACK),
 	FLAG(SUPPORTS_TX_FRAG),
+	FLAG(SUPPORTS_TDLS_BUFFER_STA),
 #undef FLAG
 };
 
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index c7f93fd9ca7a..4d82fe7d627c 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -165,7 +165,8 @@ static inline void drv_bss_info_changed(struct ieee80211_local *local,
 	if (WARN_ON_ONCE(sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE ||
 			 sdata->vif.type == NL80211_IFTYPE_NAN ||
 			 (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
-			  !sdata->vif.mu_mimo_owner)))
+			  !sdata->vif.mu_mimo_owner &&
+			  !(changed & BSS_CHANGED_TXPOWER))))
 		return;
 
 	if (!check_sdata_in_driver(sdata))
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 1621b6ab17ba..d7523530d3f8 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -492,6 +492,7 @@ int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
 	case IEEE80211_SMPS_AUTOMATIC:
 	case IEEE80211_SMPS_NUM_MODES:
 		WARN_ON(1);
+		/* fall through */
 	case IEEE80211_SMPS_OFF:
 		action_frame->u.action.u.ht_smps.smps_control =
 				WLAN_HT_SMPS_CONTROL_DISABLED;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 885d00b41911..26900025de2f 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1757,10 +1757,6 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 				     u16 initiator, u16 reason, bool stop);
 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 				    u16 initiator, u16 reason, bool stop);
-void __ieee80211_start_rx_ba_session(struct sta_info *sta,
-				     u8 dialog_token, u16 timeout,
-				     u16 start_seq_num, u16 ba_policy, u16 tid,
-				     u16 buf_size, bool tx, bool auto_seq);
 void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
 				      u8 dialog_token, u16 timeout,
 				      u16 start_seq_num, u16 ba_policy, u16 tid,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 13b16f90e1cf..5fe01f82df12 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1474,7 +1474,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 		break;
 	case NL80211_IFTYPE_UNSPECIFIED:
 	case NUM_NL80211_IFTYPES:
-		BUG();
+		WARN_ON(1);
 		break;
 	}
 
@@ -1633,7 +1633,7 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
 				goto out_unlock;
 			}
 		}
-		/* otherwise fall through */
+		/* fall through */
 	default:
 		/* assign a new address if possible -- try n_addresses first */
 		for (i = 0; i < local->hw.wiphy->n_addresses; i++) {
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 938049395f90..aee05ec3f7ea 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -178,13 +178,17 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 	if (!ret) {
 		key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
 
-		if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
+		if (!((key->conf.flags & (IEEE80211_KEY_FLAG_GENERATE_MMIC |
+					   IEEE80211_KEY_FLAG_PUT_MIC_SPACE)) ||
 		      (key->conf.flags & IEEE80211_KEY_FLAG_RESERVE_TAILROOM)))
 			decrease_tailroom_need_count(sdata, 1);
 
 		WARN_ON((key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) &&
 			(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV));
 
+		WARN_ON((key->conf.flags & IEEE80211_KEY_FLAG_PUT_MIC_SPACE) &&
+			(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC));
+
 		return 0;
 	}
 
@@ -237,7 +241,8 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
 	sta = key->sta;
 	sdata = key->sdata;
 
-	if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
+	if (!((key->conf.flags & (IEEE80211_KEY_FLAG_GENERATE_MMIC |
+				   IEEE80211_KEY_FLAG_PUT_MIC_SPACE)) ||
 	      (key->conf.flags & IEEE80211_KEY_FLAG_RESERVE_TAILROOM)))
 		increment_tailroom_need_count(sdata);
 
@@ -1104,7 +1109,8 @@ void ieee80211_remove_key(struct ieee80211_key_conf *keyconf)
 	if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
 		key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
 
-		if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
+		if (!((key->conf.flags & (IEEE80211_KEY_FLAG_GENERATE_MMIC |
+					   IEEE80211_KEY_FLAG_PUT_MIC_SPACE)) ||
 		      (key->conf.flags & IEEE80211_KEY_FLAG_RESERVE_TAILROOM)))
 			increment_tailroom_need_count(key->sdata);
 	}
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index e054a2fd8d38..0785d04a80bc 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -263,6 +263,9 @@ static void ieee80211_restart_work(struct work_struct *work)
 	flush_delayed_work(&local->roc_work);
 	flush_work(&local->hw_roc_done);
 
+	/* wait for all packet processing to be done */
+	synchronize_net();
+
 	ieee80211_reconfig(local);
 	rtnl_unlock();
 }
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 5e27364e10ac..73ac607beb5d 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -989,8 +989,10 @@ ieee80211_mesh_process_chnswitch(struct ieee80211_sub_if_data *sdata,
 	switch (sdata->vif.bss_conf.chandef.width) {
 	case NL80211_CHAN_WIDTH_20_NOHT:
 		sta_flags |= IEEE80211_STA_DISABLE_HT;
+		/* fall through */
 	case NL80211_CHAN_WIDTH_20:
 		sta_flags |= IEEE80211_STA_DISABLE_40MHZ;
+		/* fall through */
 	case NL80211_CHAN_WIDTH_40:
 		sta_flags |= IEEE80211_STA_DISABLE_VHT;
 		break;
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 4394463a0c2e..35ad3983ae4b 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -1250,6 +1250,7 @@ void mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata)
 		break;
 	case IEEE80211_PROACTIVE_PREQ_WITH_PREP:
 		flags |= IEEE80211_PREQ_PROACTIVE_PREP_FLAG;
+		/* fall through */
 	case IEEE80211_PROACTIVE_PREQ_NO_PREP:
 		interval = ifmsh->mshcfg.dot11MeshHWMPactivePathToRootTimeout;
 		target_flags |= IEEE80211_PREQ_TO_FLAG |
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index e2d00cce3c17..0f6c9ca59062 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -672,7 +672,7 @@ void mesh_plink_timer(struct timer_list *t)
 			break;
 		}
 		reason = WLAN_REASON_MESH_MAX_RETRIES;
-		/* fall through on else */
+		/* fall through */
 	case NL80211_PLINK_CNF_RCVD:
 		/* confirm timer */
 		if (!reason)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index c244691deab9..39b660b9a908 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -473,6 +473,7 @@ static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata,
 	case IEEE80211_SMPS_AUTOMATIC:
 	case IEEE80211_SMPS_NUM_MODES:
 		WARN_ON(1);
+		/* fall through */
 	case IEEE80211_SMPS_OFF:
 		cap |= WLAN_HT_CAP_SM_PS_DISABLED <<
 			IEEE80211_HT_CAP_SM_PS_SHIFT;
@@ -2861,10 +2862,11 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 	aid = le16_to_cpu(mgmt->u.assoc_resp.aid);
 	capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
 
-	if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14)))
-		sdata_info(sdata, "invalid AID value 0x%x; bits 15:14 not set\n",
-			   aid);
-	aid &= ~(BIT(15) | BIT(14));
+	/*
+	 * The 5 MSB of the AID field are reserved
+	 * (802.11-2016 9.4.1.8 AID field)
+	 */
+	aid &= 0x7ff;
 
 	ifmgd->broken_ap = false;
 
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index faf4f6055000..f1d40b6645ff 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -801,14 +801,14 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 	case NL80211_IFTYPE_ADHOC:
 		if (!sdata->vif.bss_conf.ibss_joined)
 			need_offchan = true;
-		/* fall through */
 #ifdef CONFIG_MAC80211_MESH
+		/* fall through */
 	case NL80211_IFTYPE_MESH_POINT:
 		if (ieee80211_vif_is_mesh(&sdata->vif) &&
 		    !sdata->u.mesh.mesh_id_len)
 			need_offchan = true;
-		/* fall through */
 #endif
+		/* fall through */
 	case NL80211_IFTYPE_AP:
 	case NL80211_IFTYPE_AP_VLAN:
 	case NL80211_IFTYPE_P2P_GO:
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 70e9d2ca8bbe..b3cff69bfd66 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1607,23 +1607,16 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 
 	/*
 	 * Change STA power saving mode only at the end of a frame
-	 * exchange sequence.
+	 * exchange sequence, and only for a data or management
+	 * frame as specified in IEEE 802.11-2016 11.2.3.2
 	 */
 	if (!ieee80211_hw_check(&sta->local->hw, AP_LINK_PS) &&
 	    !ieee80211_has_morefrags(hdr->frame_control) &&
-	    !ieee80211_is_back_req(hdr->frame_control) &&
+	    (ieee80211_is_mgmt(hdr->frame_control) ||
+	     ieee80211_is_data(hdr->frame_control)) &&
 	    !(status->rx_flags & IEEE80211_RX_DEFERRED_RELEASE) &&
 	    (rx->sdata->vif.type == NL80211_IFTYPE_AP ||
-	     rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
-	    /*
-	     * PM bit is only checked in frames where it isn't reserved,
-	     * in AP mode it's reserved in non-bufferable management frames
-	     * (cf. IEEE 802.11-2012 8.2.4.1.7 Power Management field)
-	     * BAR frames should be ignored as specified in
-	     * IEEE 802.11-2012 10.2.1.2.
-	     */
-	    (!ieee80211_is_mgmt(hdr->frame_control) ||
-	     ieee80211_is_bufferable_mmpdu(hdr->frame_control))) {
+	     rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) {
 		if (test_sta_flag(sta, WLAN_STA_PS_STA)) {
 			if (!ieee80211_has_pm(hdr->frame_control))
 				sta_ps_end(sta);
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index 91093d4a2f84..5cd5e6e5834e 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -47,6 +47,8 @@ static void ieee80211_tdls_add_ext_capab(struct ieee80211_sub_if_data *sdata,
 			   NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
 	bool wider_band = ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
 			  !ifmgd->tdls_wider_bw_prohibited;
+	bool buffer_sta = ieee80211_hw_check(&local->hw,
+					     SUPPORTS_TDLS_BUFFER_STA);
 	struct ieee80211_supported_band *sband = ieee80211_get_sband(sdata);
 	bool vht = sband && sband->vht_cap.vht_supported;
 	u8 *pos = skb_put(skb, 10);
@@ -56,7 +58,8 @@ static void ieee80211_tdls_add_ext_capab(struct ieee80211_sub_if_data *sdata,
 	*pos++ = 0x0;
 	*pos++ = 0x0;
 	*pos++ = 0x0;
-	*pos++ = chan_switch ? WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH : 0;
+	*pos++ = (chan_switch ? WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH : 0) |
+		 (buffer_sta ? WLAN_EXT_CAPA4_TDLS_BUFFER_STA : 0);
 	*pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
 	*pos++ = 0;
 	*pos++ = 0;
@@ -236,6 +239,7 @@ static enum ieee80211_ac_numbers ieee80211_ac_from_wmm(int ac)
 	switch (ac) {
 	default:
 		WARN_ON_ONCE(1);
+		/* fall through */
 	case 0:
 		return IEEE80211_AC_BE;
 	case 1:
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 3160954fc406..25904af38839 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2922,7 +2922,9 @@ void ieee80211_check_fast_xmit(struct sta_info *sta)
 
 		gen_iv = build.key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV;
 		iv_spc = build.key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE;
-		mmic = build.key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC;
+		mmic = build.key->conf.flags &
+			(IEEE80211_KEY_FLAG_GENERATE_MMIC |
+			 IEEE80211_KEY_FLAG_PUT_MIC_SPACE);
 
 		/* don't handle software crypto */
 		if (!(build.key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index d57e5f6bd8b6..1f82191ce601 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2110,15 +2110,6 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 		cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy, 0);
 
  wake_up:
-	if (local->in_reconfig) {
-		local->in_reconfig = false;
-		barrier();
-
-		/* Restart deferred ROCs */
-		mutex_lock(&local->mtx);
-		ieee80211_start_next_roc(local);
-		mutex_unlock(&local->mtx);
-	}
 
 	if (local->monitors == local->open_count && local->monitors > 0)
 		ieee80211_add_virtual_monitor(local);
@@ -2146,6 +2137,16 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 		mutex_unlock(&local->sta_mtx);
 	}
 
+	if (local->in_reconfig) {
+		local->in_reconfig = false;
+		barrier();
+
+		/* Restart deferred ROCs */
+		mutex_lock(&local->mtx);
+		ieee80211_start_next_roc(local);
+		mutex_unlock(&local->mtx);
+	}
+
 	ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP,
 					IEEE80211_QUEUE_STOP_REASON_SUSPEND,
 					false);
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 3e3d3014e9ab..5f7c96368b11 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -165,6 +165,7 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
 			qos = sta->sta.wme;
 			break;
 		}
+		/* fall through */
 	case NL80211_IFTYPE_AP:
 		ra = skb->data;
 		break;
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index b58722d9de37..785056cb76f6 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -1,7 +1,7 @@
 /*
  * Copyright 2002-2004, Instant802 Networks, Inc.
  * Copyright 2008, Jouni Malinen <j@w1.fi>
- * Copyright (C) 2016 Intel Deutschland GmbH
+ * Copyright (C) 2016-2017 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -59,8 +59,9 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx)
 	if (info->control.hw_key &&
 	    (info->flags & IEEE80211_TX_CTL_DONTFRAG ||
 	     ieee80211_hw_check(&tx->local->hw, SUPPORTS_TX_FRAG)) &&
-	    !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC)) {
-		/* hwaccel - with no need for SW-generated MMIC */
+	    !(tx->key->conf.flags & (IEEE80211_KEY_FLAG_GENERATE_MMIC |
+				     IEEE80211_KEY_FLAG_PUT_MIC_SPACE))) {
+		/* hwaccel - with no need for SW-generated MMIC or MIC space */
 		return TX_CONTINUE;
 	}
 
@@ -75,8 +76,15 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx)
 		 skb_tailroom(skb), tail))
 		return TX_DROP;
 
-	key = &tx->key->conf.key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY];
 	mic = skb_put(skb, MICHAEL_MIC_LEN);
+
+	if (tx->key->conf.flags & IEEE80211_KEY_FLAG_PUT_MIC_SPACE) {
+		/* Zeroed MIC can help with debug */
+		memset(mic, 0, MICHAEL_MIC_LEN);
+		return TX_CONTINUE;
+	}
+
+	key = &tx->key->conf.key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY];
 	michael_mic(key, hdr, data, data_len, mic);
 	if (unlikely(info->flags & IEEE80211_TX_INTFL_TKIP_MIC_FAILURE))
 		mic[0]++;