Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

drivers/net/wireless/ath/ath6kl/cfg80211.c

···
 {
 	struct ath6kl *ar = ath6kl_priv(dev);
 	struct ath6kl_vif *vif = netdev_priv(dev);
+	int err;
 
 	if (vif->nw_type != AP_NETWORK)
 		return -EOPNOTSUPP;
 
-	/* Use this only for authorizing/unauthorizing a station */
-	if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
-		return -EOPNOTSUPP;
+	err = cfg80211_check_station_change(wiphy, params,
+					    CFG80211_STA_AP_MLME_CLIENT);
+	if (err)
+		return err;
 
 	if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 		return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,

drivers/net/wireless/iwlegacy/3945.h

···
 	struct list_head list;
 };
 
-#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
-#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
-#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
-
 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12

drivers/net/wireless/iwlegacy/4965-mac.c

···
 
 	spin_lock_irqsave(&il->sta_lock, flags);
 	tid_data = &il->stations[sta_id].tid[tid];
-	*ssn = SEQ_TO_SN(tid_data->seq_number);
+	*ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number);
 	tid_data->agg.txq_id = txq_id;
 	il_set_swq_id(&il->txq[txq_id], il4965_get_ac_from_tid(tid), txq_id);
 	spin_unlock_irqrestore(&il->sta_lock, flags);
···
 		/* aggregated HW queue */
 		if (txq_id == tid_data->agg.txq_id &&
 		    q->read_ptr == q->write_ptr) {
-			u16 ssn = SEQ_TO_SN(tid_data->seq_number);
+			u16 ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number);
 			int tx_fifo = il4965_get_fifo_from_tid(tid);
 			D_HT("HW queue empty: continue DELBA flow\n");
 			il4965_txq_agg_disable(il, txq_id, ssn, tx_fifo);
···
 static inline u32
 il4965_get_scd_ssn(struct il4965_tx_resp *tx_resp)
 {
-	return le32_to_cpup(&tx_resp->u.status + tx_resp->frame_count) & MAX_SN;
+	return le32_to_cpup(&tx_resp->u.status +
+			    tx_resp->frame_count) & IEEE80211_MAX_SN;
 }
 
 static inline u32
···
 			hdr = (struct ieee80211_hdr *) skb->data;
 
 			sc = le16_to_cpu(hdr->seq_ctrl);
-			if (idx != (SEQ_TO_SN(sc) & 0xff)) {
+			if (idx != (IEEE80211_SEQ_TO_SN(sc) & 0xff)) {
 				IL_ERR("BUG_ON idx doesn't match seq control"
 				       " idx=%d, seq_idx=%d, seq=%d\n", idx,
-				       SEQ_TO_SN(sc), hdr->seq_ctrl);
+				       IEEE80211_SEQ_TO_SN(sc), hdr->seq_ctrl);
 				return -1;
 			}
 
 			D_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n", i, idx,
-				   SEQ_TO_SN(sc));
+				   IEEE80211_SEQ_TO_SN(sc));
 
 			sh = idx - start;
 			if (sh > 64) {

drivers/net/wireless/iwlegacy/common.h

···
 	struct list_head list;
 };
 
-#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
-#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
-#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
-
 enum {
 	CMD_SYNC = 0,
 	CMD_SIZE_NORMAL = 0,

drivers/net/wireless/iwlwifi/dvm/mac80211.c

···
 static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif,
 				     struct ieee80211_channel *channel,
-				     int duration)
+				     int duration,
+				     enum ieee80211_roc_type type)
 {
 	struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 	struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];

drivers/net/wireless/iwlwifi/dvm/tx.c

···
 				" Tx flags = 0x%08x, agg.state = %d",
 				info->flags, tid_data->agg.state);
 			IWL_ERR(priv, "sta_id = %d, tid = %d seq_num = %d",
-				sta_id, tid, SEQ_TO_SN(tid_data->seq_number));
+				sta_id, tid,
+				IEEE80211_SEQ_TO_SN(tid_data->seq_number));
 			goto drop_unlock_sta;
 		}
 
···
 		return 0;
 	}
 
-	tid_data->agg.ssn = SEQ_TO_SN(tid_data->seq_number);
+	tid_data->agg.ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number);
 
 	/* There are still packets for this RA / TID in the HW */
 	if (!test_bit(txq_id, priv->agg_q_alloc)) {
···
 
 	spin_lock_bh(&priv->sta_lock);
 	tid_data = &priv->tid_data[sta_id][tid];
-	tid_data->agg.ssn = SEQ_TO_SN(tid_data->seq_number);
+	tid_data->agg.ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number);
 	tid_data->agg.txq_id = txq_id;
 
 	*ssn = tid_data->agg.ssn;
···
 static inline u32 iwlagn_get_scd_ssn(struct iwlagn_tx_resp *tx_resp)
 {
 	return le32_to_cpup((__le32 *)&tx_resp->status +
-			    tx_resp->frame_count) & MAX_SN;
+			    tx_resp->frame_count) & IEEE80211_MAX_SN;
 }
 
 static void iwl_rx_reply_tx_agg(struct iwl_priv *priv,
···
 
 	if (tx_resp->frame_count == 1) {
 		u16 next_reclaimed = le16_to_cpu(tx_resp->seq_ctl);
-		next_reclaimed = SEQ_TO_SN(next_reclaimed + 0x10);
+		next_reclaimed = IEEE80211_SEQ_TO_SN(next_reclaimed + 0x10);
 
 		if (is_agg) {
 			/* If this is an aggregation queue, we can rely on the

drivers/net/wireless/iwlwifi/iwl-trans.h

···
  * completely agnostic to these differences.
  * The transport does provide helper functionnality (i.e. SYNC / ASYNC mode),
  */
-#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
-#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
-#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 #define SEQ_TO_QUEUE(s)	(((s) >> 8) & 0x1f)
 #define QUEUE_TO_SEQ(q)	(((q) & 0x1f) << 8)
 #define SEQ_TO_INDEX(s)	((s) & 0xff)

drivers/net/wireless/iwlwifi/mvm/mac80211.c

···
 static int iwl_mvm_roc(struct ieee80211_hw *hw,
 		       struct ieee80211_vif *vif,
 		       struct ieee80211_channel *channel,
-		       int duration)
+		       int duration,
+		       enum ieee80211_roc_type type)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	struct cfg80211_chan_def chandef;
···
 		return -EINVAL;
 	}
 
-	IWL_DEBUG_MAC80211(mvm, "enter (%d, %d)\n", channel->hw_value,
-			   duration);
+	IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
+			   duration, type);
 
 	mutex_lock(&mvm->mutex);
 

drivers/net/wireless/iwlwifi/mvm/sta.c

···
 
 	spin_lock_bh(&mvmsta->lock);
 	tid_data = &mvmsta->tid_data[tid];
-	tid_data->ssn = SEQ_TO_SN(tid_data->seq_number);
+	tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number);
 	tid_data->txq_id = txq_id;
 	*ssn = tid_data->ssn;
 
···
 
 	switch (tid_data->state) {
 	case IWL_AGG_ON:
-		tid_data->ssn = SEQ_TO_SN(tid_data->seq_number);
+		tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number);
 
 		IWL_DEBUG_TX_QUEUES(mvm,
 				    "ssn = %d, next_recl = %d\n",

drivers/net/wireless/iwlwifi/mvm/tx.c

···
 		next_reclaimed = ssn;
 	} else {
 		/* The next packet to be reclaimed is the one after this one */
-		next_reclaimed = SEQ_TO_SN(seq_ctl + 0x10);
+		next_reclaimed = IEEE80211_SEQ_TO_SN(seq_ctl + 0x10);
 	}
 
 	IWL_DEBUG_TX_REPLY(mvm,

drivers/net/wireless/iwlwifi/pcie/tx.c

···
 	 * Check here that the packets are in the right place on the ring.
 	 */
 #ifdef CONFIG_IWLWIFI_DEBUG
-	wifi_seq = SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl));
+	wifi_seq = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl));
 	WARN_ONCE((iwl_read_prph(trans, SCD_AGGR_SEL) & BIT(txq_id)) &&
 		  ((wifi_seq & 0xff) != q->write_ptr),
 		  "Q: %d WiFi Seq %d tfdNum %d",

drivers/net/wireless/mac80211_hwsim.c

···
 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
 			      struct ieee80211_vif *vif,
 			      struct ieee80211_channel *chan,
-			      int duration)
+			      int duration,
+			      enum ieee80211_roc_type type)
 {
 	struct mac80211_hwsim_data *hwsim = hw->priv;
 

drivers/net/wireless/rtlwifi/wifi.h

···
 #define WLAN_FC_GET_TYPE(fc)	(le16_to_cpu(fc) & IEEE80211_FCTL_FTYPE)
 #define WLAN_FC_GET_STYPE(fc)	(le16_to_cpu(fc) & IEEE80211_FCTL_STYPE)
 #define WLAN_FC_MORE_DATA(fc)	(le16_to_cpu(fc) & IEEE80211_FCTL_MOREDATA)
-#define SEQ_TO_SN(seq)		(((seq) & IEEE80211_SCTL_SEQ) >> 4)
-#define SN_TO_SEQ(ssn)		(((ssn) << 4) & IEEE80211_SCTL_SEQ)
-#define MAX_SN			((IEEE80211_SCTL_SEQ) >> 4)
 
 #define	RT_RF_OFF_LEVL_ASPM		BIT(0)	/*PCI ASPM */
 #define	RT_RF_OFF_LEVL_CLK_REQ		BIT(1)	/*PCI clock request */

drivers/net/wireless/ti/wlcore/main.c

···
 static int wlcore_op_remain_on_channel(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif,
 				       struct ieee80211_channel *chan,
-				       int duration)
+				       int duration,
+				       enum ieee80211_roc_type type)
 {
 	struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
 	struct wl1271 *wl = hw->priv;

include/linux/ieee80211.h

···
 #define IEEE80211_CTL_EXT_SSW_FBACK	0x9000
 #define IEEE80211_CTL_EXT_SSW_ACK	0xa000
 
+
+#define IEEE80211_SN_MASK		((IEEE80211_SCTL_SEQ) >> 4)
+#define IEEE80211_MAX_SN		IEEE80211_SN_MASK
+#define IEEE80211_SN_MODULO		(IEEE80211_MAX_SN + 1)
+
+static inline int ieee80211_sn_less(u16 sn1, u16 sn2)
+{
+	return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
+}
+
+static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
+{
+	return (sn1 + sn2) & IEEE80211_SN_MASK;
+}
+
+static inline u16 ieee80211_sn_inc(u16 sn)
+{
+	return ieee80211_sn_add(sn, 1);
+}
+
+static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
+{
+	return (sn1 - sn2) & IEEE80211_SN_MASK;
+}
+
+#define IEEE80211_SEQ_TO_SN(seq)	(((seq) & IEEE80211_SCTL_SEQ) >> 4)
+#define IEEE80211_SN_TO_SEQ(ssn)	(((ssn) << 4) & IEEE80211_SCTL_SEQ)
+
 /* miscellaneous IEEE 802.11 constants */
 #define IEEE80211_MAX_FRAG_THRESHOLD	2352
 #define IEEE80211_MAX_RTS_THRESHOLD	2353
···
 	u8 addr3[6];
 	__le16 seq_ctrl;
 	u8 addr4[6];
-} __packed;
+} __packed __aligned(2);
 
 struct ieee80211_hdr_3addr {
 	__le16 frame_control;
···
 	u8 addr2[6];
 	u8 addr3[6];
 	__le16 seq_ctrl;
-} __packed;
+} __packed __aligned(2);
 
 struct ieee80211_qos_hdr {
 	__le16 frame_control;
···
 	u8 addr3[6];
 	__le16 seq_ctrl;
 	__le16 qos_ctrl;
-} __packed;
+} __packed __aligned(2);
 
 /**
  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
···
 	__le32 seqnum;
 	u8 eaddr1[6];
 	u8 eaddr2[6];
-} __packed;
+} __packed __aligned(2);
 
 /* Mesh flags */
 #define MESH_FLAGS_AE_A4 	0x1
···
 			} u;
 		} __packed action;
 	} u;
-} __packed;
+} __packed __aligned(2);
 
 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY	127
···
 	__le16 duration;
 	u8 ra[6];
 	u8 ta[6];
-} __packed;
+} __packed __aligned(2);
 
 struct ieee80211_cts {
 	__le16 frame_control;
 	__le16 duration;
 	u8 ra[6];
-} __packed;
+} __packed __aligned(2);
 
 struct ieee80211_pspoll {
 	__le16 frame_control;
 	__le16 aid;
 	u8 bssid[6];
 	u8 ta[6];
-} __packed;
+} __packed __aligned(2);
 
 /* TDLS */
 
···
 } __packed;
 
 
-#define IEEE80211_VHT_MCS_ZERO_TO_SEVEN_SUPPORT 0
-#define IEEE80211_VHT_MCS_ZERO_TO_EIGHT_SUPPORT 1
-#define IEEE80211_VHT_MCS_ZERO_TO_NINE_SUPPORT  2
-#define IEEE80211_VHT_MCS_NOT_SUPPORTED 3
-
 /* 802.11ac VHT Capabilities */
 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895			0x00000000
 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991			0x00000001
···
 #define IEEE80211_VHT_CAP_RXSTBC_2				0x00000200
 #define IEEE80211_VHT_CAP_RXSTBC_3				0x00000300
 #define IEEE80211_VHT_CAP_RXSTBC_4				0x00000400
+#define IEEE80211_VHT_CAP_RXSTBC_MASK				0x00000700
 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE			0x00000800
 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE			0x00001000
 #define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX		0x00006000
-#define IEEE80211_VHT_CAP_SOUNDING_DIMENTION_MAX		0x00030000
+#define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX		0x00030000
 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE			0x00080000
 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE			0x00100000
 #define IEEE80211_VHT_CAP_VHT_TXOP_PS				0x00200000

include/net/cfg80211.h

···
 };
 
 /**
- * enum plink_action - actions to perform in mesh peers
- *
- * @PLINK_ACTION_INVALID: action 0 is reserved
- * @PLINK_ACTION_OPEN: start mesh peer link establishment
- * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
- */
-enum plink_actions {
-	PLINK_ACTION_INVALID,
-	PLINK_ACTION_OPEN,
-	PLINK_ACTION_BLOCK,
-};
-
-/**
  * enum station_parameters_apply_mask - station parameter values to apply
  * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
  * @STATION_PARAM_APPLY_CAPABILITY: apply new capability
+ * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state
  *
  * Not all station parameters have in-band "no change" signalling,
  * for those that don't these flags will are used.
···
 enum station_parameters_apply_mask {
 	STATION_PARAM_APPLY_UAPSD = BIT(0),
 	STATION_PARAM_APPLY_CAPABILITY = BIT(1),
+	STATION_PARAM_APPLY_PLINK_STATE = BIT(2),
 };
 
 /**
···
  * @ext_capab_len: number of extended capabilities
  */
 struct station_parameters {
-	u8 *supported_rates;
+	const u8 *supported_rates;
 	struct net_device *vlan;
 	u32 sta_flags_mask, sta_flags_set;
 	u32 sta_modify_mask;
···
 	u8 supported_rates_len;
 	u8 plink_action;
 	u8 plink_state;
-	struct ieee80211_ht_cap *ht_capa;
-	struct ieee80211_vht_cap *vht_capa;
+	const struct ieee80211_ht_cap *ht_capa;
+	const struct ieee80211_vht_cap *vht_capa;
 	u8 uapsd_queues;
 	u8 max_sp;
 	enum nl80211_mesh_power_mode local_pm;
 	u16 capability;
-	u8 *ext_capab;
+	const u8 *ext_capab;
 	u8 ext_capab_len;
 };
+
+/**
+ * enum cfg80211_station_type - the type of station being modified
+ * @CFG80211_STA_AP_CLIENT: client of an AP interface
+ * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has
+ *	the AP MLME in the device
+ * @CFG80211_STA_AP_STA: AP station on managed interface
+ * @CFG80211_STA_IBSS: IBSS station
+ * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry
+ *	while TDLS setup is in progress, it moves out of this state when
+ *	being marked authorized; use this only if TDLS with external setup is
+ *	supported/used)
+ * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active
+ *	entry that is operating, has been marked authorized by userspace)
+ * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed)
+ * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed)
+ */
+enum cfg80211_station_type {
+	CFG80211_STA_AP_CLIENT,
+	CFG80211_STA_AP_MLME_CLIENT,
+	CFG80211_STA_AP_STA,
+	CFG80211_STA_IBSS,
+	CFG80211_STA_TDLS_PEER_SETUP,
+	CFG80211_STA_TDLS_PEER_ACTIVE,
+	CFG80211_STA_MESH_PEER_KERNEL,
+	CFG80211_STA_MESH_PEER_USER,
+};
+
+/**
+ * cfg80211_check_station_change - validate parameter changes
+ * @wiphy: the wiphy this operates on
+ * @params: the new parameters for a station
+ * @statype: the type of station being modified
+ *
+ * Utility function for the @change_station driver method. Call this function
+ * with the appropriate station type looking up the station (and checking that
+ * it exists). It will verify whether the station change is acceptable, and if
+ * not will return an error code. Note that it may modify the parameters for
+ * backward compatibility reasons, so don't use them before calling this.
+ */
+int cfg80211_check_station_change(struct wiphy *wiphy,
+				  struct station_parameters *params,
+				  enum cfg80211_station_type statype);
 
 /**
  * enum station_info_flags - station information flags
···
  * @ie_len: length of vendor information elements
  * @is_authenticated: this mesh requires authentication
  * @is_secure: this mesh uses security
+ * @user_mpm: userspace handles all MPM functions
  * @dtim_period: DTIM period to use
  * @beacon_interval: beacon interval to use
  * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
···
 	u8 ie_len;
 	bool is_authenticated;
 	bool is_secure;
+	bool user_mpm;
 	u8 dtim_period;
 	u16 beacon_interval;
 	int mcast_rate[IEEE80211_NUM_BANDS];
···
  * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
  *
  * @ASSOC_REQ_DISABLE_HT:  Disable HT (802.11n)
+ * @ASSOC_REQ_DISABLE_VHT:  Disable VHT
  */
 enum cfg80211_assoc_req_flags {
 	ASSOC_REQ_DISABLE_HT		= BIT(0),
+	ASSOC_REQ_DISABLE_VHT		= BIT(1),
 };
 
 /**
···
  * @ht_capa:  HT Capabilities over-rides.  Values set in ht_capa_mask
  *   will be used in ht_capa.  Un-supported values will be ignored.
  * @ht_capa_mask:  The bits of ht_capa which are to be used.
+ * @vht_capa: VHT capability override
+ * @vht_capa_mask: VHT capability mask indicating which fields to use
  */
 struct cfg80211_assoc_request {
 	struct cfg80211_bss *bss;
···
 	u32 flags;
 	struct ieee80211_ht_cap ht_capa;
 	struct ieee80211_ht_cap ht_capa_mask;
+	struct ieee80211_vht_cap vht_capa, vht_capa_mask;
 };
 
 /**
···
  * @ht_capa:  HT Capabilities over-rides.  Values set in ht_capa_mask
  *   will be used in ht_capa.  Un-supported values will be ignored.
  * @ht_capa_mask:  The bits of ht_capa which are to be used.
+ * @vht_capa:  VHT Capability overrides
+ * @vht_capa_mask: The bits of vht_capa which are to be used.
  */
 struct cfg80211_connect_params {
 	struct ieee80211_channel *channel;
···
 	int bg_scan_period;
 	struct ieee80211_ht_cap ht_capa;
 	struct ieee80211_ht_cap ht_capa_mask;
+	struct ieee80211_vht_cap vht_capa;
+	struct ieee80211_vht_cap vht_capa_mask;
 };
 
 /**
···
 };
 
 /**
+ * struct cfg80211_update_ft_ies_params - FT IE Information
+ *
+ * This structure provides information needed to update the fast transition IE
+ *
+ * @md: The Mobility Domain ID, 2 Octet value
+ * @ie: Fast Transition IEs
+ * @ie_len: Length of ft_ie in octets
+ */
+struct cfg80211_update_ft_ies_params {
+	u16 md;
+	const u8 *ie;
+	size_t ie_len;
+};
+
+/**
  * struct cfg80211_ops - backend description for wireless configuration
  *
  * This struct is registered by fullmac card drivers and/or wireless stacks
···
  * @change_station: Modify a given station. Note that flags changes are not much
  *	validated in cfg80211, in particular the auth/assoc/authorized flags
  *	might come to the driver in invalid combinations -- make sure to check
- *	them, also against the existing state! Also, supported_rates changes are
- *	not checked in station mode -- drivers need to reject (or ignore) them
- *	for anything but TDLS peers.
+ *	them, also against the existing state! Drivers must call
+ *	cfg80211_check_station_change() to validate the information.
  * @get_station: get station information for the station identified by @mac
  * @dump_station: dump station callback -- resume dump at index @idx
  *
···
 	int	(*start_radar_detection)(struct wiphy *wiphy,
 					 struct net_device *dev,
 					 struct cfg80211_chan_def *chandef);
+	int	(*update_ft_ies)(struct wiphy *wiphy, struct net_device *dev,
+				 struct cfg80211_update_ft_ies_params *ftie);
 };
 
 /*
···
  * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
  * @ht_capa_mod_mask:  Specify what ht_cap values can be over-ridden.
  *	If null, then none can be over-ridden.
+ * @vht_capa_mod_mask:  Specify what VHT capabilities can be over-ridden.
+ *	If null, then none can be over-ridden.
  *
  * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
  *	supports for ACL.
···
 	struct dentry *debugfsdir;
 
 	const struct ieee80211_ht_cap *ht_capa_mod_mask;
+	const struct ieee80211_vht_cap *vht_capa_mod_mask;
 
 #ifdef CONFIG_NET_NS
 	/* the network namespace this phy lives in currently */
···
  * Requires the RTNL to be held.
  */
 void cfg80211_unregister_wdev(struct wireless_dev *wdev);
+
+/**
+ * struct cfg80211_ft_event - FT Information Elements
+ * @ies: FT IEs
+ * @ies_len: length of the FT IE in bytes
+ * @target_ap: target AP's MAC address
+ * @ric_ies: RIC IE
+ * @ric_ies_len: length of the RIC IE in bytes
+ */
+struct cfg80211_ft_event_params {
+	const u8 *ies;
+	size_t ies_len;
+	const u8 *target_ap;
+	const u8 *ric_ies;
+	size_t ric_ies_len;
+};
+
+/**
+ * cfg80211_ft_event - notify userspace about FT IE and RIC IE
+ * @netdev: network device
+ * @ft_event: IE information
+ */
+void cfg80211_ft_event(struct net_device *netdev,
+		       struct cfg80211_ft_event_params *ft_event);
 
 /**
  * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer

include/net/mac80211.h

···
  * These flags are used for communication about keys between the driver
  * and mac80211, with the @flags parameter of &struct ieee80211_key_conf.
  *
- * @IEEE80211_KEY_FLAG_WMM_STA: Set by mac80211, this flag indicates
- *	that the STA this key will be used with could be using QoS.
  * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the
  *	driver to indicate that it requires IV generation for this
  *	particular key.
···
  *	%IEEE80211_KEY_FLAG_SW_MGMT_TX flag to encrypt such frames in SW.
  */
 enum ieee80211_key_flags {
-	IEEE80211_KEY_FLAG_WMM_STA	= 1<<0,
 	IEEE80211_KEY_FLAG_GENERATE_IV	= 1<<1,
 	IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2,
 	IEEE80211_KEY_FLAG_PAIRWISE	= 1<<3,
···
  * @addr: MAC address
  * @aid: AID we assigned to the station if we're an AP
  * @supp_rates: Bitmap of supported rates (per band)
- * @ht_cap: HT capabilities of this STA; restricted to our own TX capabilities
- * @vht_cap: VHT capabilities of this STA; Not restricting any capabilities
- * 	of remote STA. Taking as is.
+ * @ht_cap: HT capabilities of this STA; restricted to our own capabilities
+ * @vht_cap: VHT capabilities of this STA; restricted to our own capabilities
  * @wme: indicates whether the STA supports WME. Only valid during AP-mode.
  * @drv_priv: data area for driver use, will always be aligned to
  *	sizeof(void *), size is determined in hw information.
···
 };
 
 /**
+ * enum ieee80211_roc_type - remain on channel type
+ *
+ * With the support for multi channel contexts and multi channel operations,
+ * remain on channel operations might be limited/deferred/aborted by other
+ * flows/operations which have higher priority (and vise versa).
+ * Specifying the ROC type can be used by devices to prioritize the ROC
+ * operations compared to other operations/flows.
+ *
+ * @IEEE80211_ROC_TYPE_NORMAL: There are no special requirements for this ROC.
+ * @IEEE80211_ROC_TYPE_MGMT_TX: The remain on channel request is required
+ *	for sending managment frames offchannel.
+ */
+enum ieee80211_roc_type {
+	IEEE80211_ROC_TYPE_NORMAL = 0,
+	IEEE80211_ROC_TYPE_MGMT_TX,
+};
+
+/**
  * struct ieee80211_ops - callbacks from mac80211 to the driver
  *
  * This structure contains various callbacks that the driver may
···
 	int (*remain_on_channel)(struct ieee80211_hw *hw,
 				 struct ieee80211_vif *vif,
 				 struct ieee80211_channel *chan,
-				 int duration);
+				 int duration,
+				 enum ieee80211_roc_type type);
 	int (*cancel_remain_on_channel)(struct ieee80211_hw *hw);
 	int (*set_ringparam)(struct ieee80211_hw *hw, u32 tx, u32 rx);
 	void (*get_ringparam)(struct ieee80211_hw *hw,

include/uapi/linux/nl80211.h

···
  * The station is still assumed to belong to the AP interface it was added
  * to.
  *
- * TODO: need more info?
+ * Station handling varies per interface type and depending on the driver's
+ * capabilities.
+ *
+ * For drivers supporting TDLS with external setup (WIPHY_FLAG_SUPPORTS_TDLS
+ * and WIPHY_FLAG_TDLS_EXTERNAL_SETUP), the station lifetime is as follows:
+ *  - a setup station entry is added, not yet authorized, without any rate
+ *    or capability information, this just exists to avoid race conditions
+ *  - when the TDLS setup is done, a single NL80211_CMD_SET_STATION is valid
+ *    to add rate and capability information to the station and at the same
+ *    time mark it authorized.
+ *  - %NL80211_TDLS_ENABLE_LINK is then used
+ *  - after this, the only valid operation is to remove it by tearing down
+ *    the TDLS link (%NL80211_TDLS_DISABLE_LINK)
+ *
+ * TODO: need more info for other interface types
  */
 
 /**
···
  * @NL80211_CMD_NEW_PEER_CANDIDATE: Notification on the reception of a
  *      beacon or probe response from a compatible mesh peer.  This is only
  *      sent while no station information (sta_info) exists for the new peer
- *      candidate and when @NL80211_MESH_SETUP_USERSPACE_AUTH is set.  On
- *      reception of this notification, userspace may decide to create a new
- *      station (@NL80211_CMD_NEW_STATION).  To stop this notification from
+ *      candidate and when @NL80211_MESH_SETUP_USERSPACE_AUTH,
+ *      @NL80211_MESH_SETUP_USERSPACE_AMPE, or
+ *      @NL80211_MESH_SETUP_USERSPACE_MPM is set.  On reception of this
+ *      notification, userspace may decide to create a new station
+ *      (@NL80211_CMD_NEW_STATION).  To stop this notification from
  *      reoccurring, the userspace authentication daemon may want to create the
  *      new station with the AUTHENTICATED flag unset and maybe change it later
  *      depending on the authentication result.
···
  *	while operating on this channel.
  *	%NL80211_ATTR_RADAR_EVENT is used to inform about the type of the
  *	event.
+ *
+ * @NL80211_CMD_GET_PROTOCOL_FEATURES: Get global nl80211 protocol features,
+ *	i.e. features for the nl80211 protocol rather than device features.
+ *	Returns the features in the %NL80211_ATTR_PROTOCOL_FEATURES bitmap.
+ *
+ * @NL80211_CMD_UPDATE_FT_IES: Pass down the most up-to-date Fast Transition
+ *	Information Element to the WLAN driver
+ *
+ * @NL80211_CMD_FT_EVENT: Send a Fast transition event from the WLAN driver
+ *	to the supplicant. This will carry the target AP's MAC address along
+ *	with the relevant Information Elements. This event is used to report
+ *	received FT IEs (MDIE, FTIE, RSN IE, TIE, RICIE).
  *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
···
 
 	NL80211_CMD_RADAR_DETECT,
 
+	NL80211_CMD_GET_PROTOCOL_FEATURES,
+
+	NL80211_CMD_UPDATE_FT_IES,
+	NL80211_CMD_FT_EVENT,
+
 	/* add new commands above here */
 
 	/* used to define NL80211_CMD_MAX below */
···
  *	consisting of a nested array.
  *
  * @NL80211_ATTR_MESH_ID: mesh id (1-32 bytes).
- * @NL80211_ATTR_STA_PLINK_ACTION: action to perform on the mesh peer link.
+ * @NL80211_ATTR_STA_PLINK_ACTION: action to perform on the mesh peer link
+ *	(see &enum nl80211_plink_action).
  * @NL80211_ATTR_MPATH_NEXT_HOP: MAC address of the next hop for a mesh path.
  * @NL80211_ATTR_MPATH_INFO: information about a mesh_path, part of mesh path
  * 	info given for %NL80211_CMD_GET_MPATH, nested attribute described at
···
  * @NL80211_ATTR_SUPPORT_MESH_AUTH: Currently, this means the underlying driver
  *	allows auth frames in a mesh to be passed to userspace for processing via
  *	the @NL80211_MESH_SETUP_USERSPACE_AUTH flag.
- * @NL80211_ATTR_STA_PLINK_STATE: The state of a mesh peer link as
- *	defined in &enum nl80211_plink_state. Used when userspace is
- *	driving the peer link management state machine.
- *	@NL80211_MESH_SETUP_USERSPACE_AMPE must be enabled.
+ * @NL80211_ATTR_STA_PLINK_STATE: The state of a mesh peer link as defined in
+ *	&enum nl80211_plink_state. Used when userspace is driving the peer link
+ *	management state machine.  @NL80211_MESH_SETUP_USERSPACE_AMPE or
+ *	@NL80211_MESH_SETUP_USERSPACE_MPM must be enabled.
  *
  * @NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED: indicates, as part of the wiphy
  *	capabilities, the supported WoWLAN triggers
···
  * @NL80211_ATTR_STA_EXT_CAPABILITY: Station extended capabilities are
  *	advertised to the driver, e.g., to enable TDLS off channel operations
  *	and PU-APSD.
+ *
+ * @NL80211_ATTR_PROTOCOL_FEATURES: global nl80211 feature flags, see
+ *	&enum nl80211_protocol_features, the attribute is a u32.
+ *
+ * @NL80211_ATTR_SPLIT_WIPHY_DUMP: flag attribute, userspace supports
+ *	receiving the data for a single wiphy split across multiple
+ *	messages, given with wiphy dump message
+ *
+ * @NL80211_ATTR_MDID: Mobility Domain Identifier
+ *
+ * @NL80211_ATTR_IE_RIC: Resource Information Container Information
+ *	Element
  *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
···
 
 	NL80211_ATTR_STA_CAPABILITY,
 	NL80211_ATTR_STA_EXT_CAPABILITY,
+
+	NL80211_ATTR_PROTOCOL_FEATURES,
+	NL80211_ATTR_SPLIT_WIPHY_DUMP,
+
+	NL80211_ATTR_DISABLE_VHT,
+	NL80211_ATTR_VHT_CAPABILITY_MASK,
+
+	NL80211_ATTR_MDID,
+	NL80211_ATTR_IE_RIC,
 
 	/* add attributes here, update the policy in nl80211.c */
 
···
  * @NL80211_MESHCONF_TTL: specifies the value of TTL field set at a source mesh
  *	point.
  *
- * @NL80211_MESHCONF_AUTO_OPEN_PLINKS: whether we should automatically
- *	open peer links when we detect compatible mesh peers.
+ * @NL80211_MESHCONF_AUTO_OPEN_PLINKS: whether we should automatically open
+ *	peer links when we detect compatible mesh peers. Disabled if
+ *	@NL80211_MESH_SETUP_USERSPACE_MPM or @NL80211_MESH_SETUP_USERSPACE_AMPE are
+ *	set.
  *
  * @NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES: the number of action frames
  *	containing a PREQ that an MP can send to a particular destination (path
···
  *	vendor specific synchronization method or disable it to use the default
  *	neighbor offset synchronization
  *
+ * @NL80211_MESH_SETUP_USERSPACE_MPM: Enable this option if userspace will
+ *	implement an MPM which handles peer allocation and state.
+ *
  * @NL80211_MESH_SETUP_ATTR_MAX: highest possible mesh setup attribute number
  *
  * @__NL80211_MESH_SETUP_ATTR_AFTER_LAST: Internal use
···
 	NL80211_MESH_SETUP_USERSPACE_AUTH,
 	NL80211_MESH_SETUP_USERSPACE_AMPE,
 	NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC,
+	NL80211_MESH_SETUP_USERSPACE_MPM,
 
 	/* keep last */
 	__NL80211_MESH_SETUP_ATTR_AFTER_LAST,
···
 	MAX_NL80211_PLINK_STATES = NUM_NL80211_PLINK_STATES - 1
 };
 
+/**
+ * enum nl80211_plink_action - actions to perform in mesh peers
+ *
+ * @NL80211_PLINK_ACTION_NO_ACTION: perform no action
+ * @NL80211_PLINK_ACTION_OPEN: start mesh peer link establishment
+ * @NL80211_PLINK_ACTION_BLOCK: block traffic from this mesh peer
+ * @NUM_NL80211_PLINK_ACTIONS: number of possible actions
+ */
+enum plink_actions {
+	NL80211_PLINK_ACTION_NO_ACTION,
+	NL80211_PLINK_ACTION_OPEN,
+	NL80211_PLINK_ACTION_BLOCK,
+
+	NUM_NL80211_PLINK_ACTIONS,
+};
+
+
 #define NL80211_KCK_LEN			16
 #define NL80211_KEK_LEN			16
 #define NL80211_REPLAY_CTR_LEN		8
···
  *	stations the authenticated/associated bits have to be set in the mask.
  * @NL80211_FEATURE_ADVERTISE_CHAN_LIMITS: cfg80211 advertises channel limits
  *	(HT40, VHT 80/160 MHz) if this flag is set
+ * @NL80211_FEATURE_USERSPACE_MPM: This driver supports a userspace Mesh
+ *	Peering Management entity which may be implemented by registering for
+ *	beacons or NL80211_CMD_NEW_PEER_CANDIDATE events. The mesh beacon is
+ *	still generated by the driver.
  */
 enum nl80211_feature_flags {
 	NL80211_FEATURE_SK_TX_STATUS			= 1 << 0,
···
 	/* bit 13 is reserved */
 	NL80211_FEATURE_ADVERTISE_CHAN_LIMITS		= 1 << 14,
 	NL80211_FEATURE_FULL_AP_CLIENT_STATE		= 1 << 15,
+	NL80211_FEATURE_USERSPACE_MPM			= 1 << 16,
 };
 
 /**
···
 	NL80211_DFS_USABLE,
 	NL80211_DFS_UNAVAILABLE,
 	NL80211_DFS_AVAILABLE,
+};
+
+/**
+ * enum enum nl80211_protocol_features - nl80211 protocol features
+ * @NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP: nl80211 supports splitting
+ *	wiphy dumps (if requested by the application with the attribute
+ *	%NL80211_ATTR_SPLIT_WIPHY_DUMP. Also supported is filtering the
+ *	wiphy dump by %NL80211_ATTR_WIPHY, %NL80211_ATTR_IFINDEX or
+ *	%NL80211_ATTR_WDEV.
+ */
+enum nl80211_protocol_features {
+	NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP =	1 << 0,
 };
 
 #endif /* __LINUX_NL80211_H */

net/mac80211/cfg.c

···
 		goto out_unlock;
 	}
 
-	__ieee80211_key_free(key);
+	__ieee80211_key_free(key, true);
 
 	ret = 0;
  out_unlock:
···
 		sta_info_flush_defer(vlan);
 	sta_info_flush_defer(sdata);
 	rcu_barrier();
-	list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
+	list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
 		sta_info_flush_cleanup(vlan);
+		ieee80211_free_keys(vlan);
+	}
 	sta_info_flush_cleanup(sdata);
+	ieee80211_free_keys(sdata);
 
 	sdata->vif.bss_conf.enable_beacon = false;
 	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
···
 			mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
 		if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
 			set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
+	} else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
+		/*
+		 * TDLS -- everything follows authorized, but
+		 * only becoming authorized is possible, not
+		 * going back
+		 */
+		if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
+			set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
+			       BIT(NL80211_STA_FLAG_ASSOCIATED);
+			mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
+				BIT(NL80211_STA_FLAG_ASSOCIATED);
+		}
 	}
 
 	ret = sta_apply_auth_flags(local, sta, mask, set);
···
 	if (ieee80211_vif_is_mesh(&sdata->vif)) {
 #ifdef CONFIG_MAC80211_MESH
 		u32 changed = 0;
-		if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED) {
+
+		if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
 			switch (params->plink_state) {
 			case NL80211_PLINK_ESTAB:
 				if (sta->plink_state != NL80211_PLINK_ESTAB)
···
 				/*  nothing  */
 				break;
 			}
-		} else {
-			switch (params->plink_action) {
-			case PLINK_ACTION_OPEN:
-				changed |= mesh_plink_open(sta);
-				break;
-			case PLINK_ACTION_BLOCK:
-				changed |= mesh_plink_block(sta);
-				break;
-			}
+		}
+
+		switch (params->plink_action) {
+		case NL80211_PLINK_ACTION_NO_ACTION:
+			/* nothing */
+			break;
+		case NL80211_PLINK_ACTION_OPEN:
+			changed |= mesh_plink_open(sta);
+			break;
+		case NL80211_PLINK_ACTION_BLOCK:
+			changed |= mesh_plink_block(sta);
+			break;
 		}
 
 		if (params->local_pm)
···
 	 * defaults -- if userspace wants something else we'll
 	 * change it accordingly in sta_apply_parameters()
 	 */
-	sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
-	sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
+	if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
+		sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
+		sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
+	}
 
 	err = sta_apply_parameters(local, sta, params);
 	if (err) {
···
 	}
 
 	/*
-	 * for TDLS, rate control should be initialized only when supported
-	 * rates are known.
+	 * for TDLS, rate control should be initialized only when
+	 * rates are known and station is marked authorized
 	 */
 	if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
 		rate_control_rate_init(sta);
···
 }
 
 static int ieee80211_change_station(struct wiphy *wiphy,
-				    struct net_device *dev,
-				    u8 *mac,
+				    struct net_device *dev, u8 *mac,
 				    struct station_parameters *params)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = wiphy_priv(wiphy);
 	struct sta_info *sta;
 	struct ieee80211_sub_if_data *vlansdata;
+	enum cfg80211_station_type statype;
 	int err;
 
 	mutex_lock(&local->sta_mtx);
 
 	sta = sta_info_get_bss(sdata, mac);
 	if (!sta) {
-		mutex_unlock(&local->sta_mtx);
-		return -ENOENT;
+		err = -ENOENT;
+		goto out_err;
 	}
 
-	/* in station mode, some updates are only valid with TDLS */
-	if (sdata->vif.type == NL80211_IFTYPE_STATION &&
-	    (params->supported_rates || params->ht_capa || params->vht_capa ||
-	     params->sta_modify_mask ||
-	     (params->sta_flags_mask & BIT(NL80211_STA_FLAG_WME))) &&
-	    !test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
-		mutex_unlock(&local->sta_mtx);
-		return -EINVAL;
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_MESH_POINT:
+		if (sdata->u.mesh.user_mpm)
+			statype = CFG80211_STA_MESH_PEER_USER;
+		else
+			statype = CFG80211_STA_MESH_PEER_KERNEL;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		statype = CFG80211_STA_IBSS;
+		break;
+	case NL80211_IFTYPE_STATION:
+		if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
+			statype = CFG80211_STA_AP_STA;
+			break;
+		}
+		if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
+			statype = CFG80211_STA_TDLS_PEER_ACTIVE;
+		else
+			statype = CFG80211_STA_TDLS_PEER_SETUP;
+		break;
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_AP_VLAN:
+		statype = CFG80211_STA_AP_CLIENT;
+		break;
+	default:
+		err = -EOPNOTSUPP;
+		goto out_err;
 	}
+
+	err = cfg80211_check_station_change(wiphy, params, statype);
+	if (err)
+		goto out_err;
 
 	if (params->vlan && params->vlan != sta->sdata->dev) {
 		bool prev_4addr = false;
···
 
 		vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 
-		if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
-		    vlansdata->vif.type != NL80211_IFTYPE_AP) {
-			mutex_unlock(&local->sta_mtx);
-			return -EINVAL;
-		}
-
 		if (params->vlan->ieee80211_ptr->use_4addr) {
 			if (vlansdata->u.vlan.sta) {
-				mutex_unlock(&local->sta_mtx);
-				return -EBUSY;
+				err = -EBUSY;
+				goto out_err;
 			}
 
 			rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
···
 	}
 
 	err = sta_apply_parameters(local, sta, params);
-	if (err) {
-		mutex_unlock(&local->sta_mtx);
-		return err;
-	}
+	if (err)
+		goto out_err;
 
-	if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && params->supported_rates)
+	/* When peer becomes authorized, init rate control as well */
+	if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
+	    test_sta_flag(sta, WLAN_STA_AUTHORIZED))
 		rate_control_rate_init(sta);
 
 	mutex_unlock(&local->sta_mtx);
···
 		ieee80211_recalc_ps(local, -1);
 		ieee80211_recalc_ps_vif(sdata);
 	}
+
 	return 0;
+out_err:
+	mutex_unlock(&local->sta_mtx);
+	return err;
 }
 
 #ifdef CONFIG_MAC80211_MESH
···
 	ifmsh->mesh_sp_id = setup->sync_method;
 	ifmsh->mesh_pp_id = setup->path_sel_proto;
 	ifmsh->mesh_pm_id = setup->path_metric;
+	ifmsh->user_mpm = setup->user_mpm;
 	ifmsh->security = IEEE80211_MESH_SEC_NONE;
 	if (setup->is_authenticated)
 		ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
···
 		conf->dot11MeshTTL = nconf->dot11MeshTTL;
 	if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
 		conf->element_ttl = nconf->element_ttl;
-	if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
+	if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
+		if (ifmsh->user_mpm)
+			return -EBUSY;
 		conf->auto_open_plinks = nconf->auto_open_plinks;
+	}
 	if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
 		conf->dot11MeshNbrOffsetMaxNeighbor =
 			nconf->dot11MeshNbrOffsetMaxNeighbor;
···
 				    struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_channel *channel,
 				    unsigned int duration, u64 *cookie,
-				    struct sk_buff *txskb)
+				    struct sk_buff *txskb,
+				    enum ieee80211_roc_type type)
 {
 	struct ieee80211_roc_work *roc, *tmp;
 	bool queued = false;
···
 	roc->duration = duration;
 	roc->req_duration = duration;
 	roc->frame = txskb;
+	roc->type = type;
 	roc->mgmt_tx_cookie = (unsigned long)txskb;
 	roc->sdata = sdata;
 	INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
···
 	if (!duration)
 		duration = 10;
 
-	ret = drv_remain_on_channel(local, sdata, channel, duration);
+	ret = drv_remain_on_channel(local, sdata, channel, duration, type);
 	if (ret) {
 		kfree(roc);
 		return ret;
···
 		 *
 		 * If it hasn't started yet, just increase the duration
 		 * and add the new one to the list of dependents.
+		 * If the type of the new ROC has higher priority, modify the
+		 * type of the previous one to match that of the new one.
 		 */
 		if (!tmp->started) {
 			list_add_tail(&roc->list, &tmp->dependents);
 			tmp->duration = max(tmp->duration, roc->duration);
+			tmp->type = max(tmp->type, roc->type);
 			queued = true;
 			break;
 		}
···
 			/*
 			 * In the offloaded ROC case, if it hasn't begun, add
 			 * this new one to the dependent list to be handled
-			 * when the the master one begins. If it has begun,
+			 * when the master one begins. If it has begun,
 			 * check that there's still a minimum time left and
 			 * if so, start this one, transmitting the frame, but
-			 * add it to the list directly after this one with a
+			 * add it to the list directly after this one with
 			 * a reduced time so we'll ask the driver to execute
 			 * it right after finishing the previous one, in the
 			 * hope that it'll also be executed right afterwards,
 			 * effectively extending the old one.
 			 * If there's no minimum time left, just add it to the
 			 * normal list.
+			 * TODO: the ROC type is ignored here, assuming that it
+			 * is better to immediately use the current ROC.
 			 */
 			if (!tmp->hw_begun) {
 				list_add_tail(&roc->list, &tmp->dependents);
···
 
 	mutex_lock(&local->mtx);
 	ret = ieee80211_start_roc_work(local, sdata, chan,
-				       duration, cookie, NULL);
+				       duration, cookie, NULL,
+				       IEEE80211_ROC_TYPE_NORMAL);
 	mutex_unlock(&local->mtx);
 
 	return ret;
···
 
 	/* This will handle all kinds of coalescing and immediate TX */
 	ret = ieee80211_start_roc_work(local, sdata, chan,
-				       wait, cookie, skb);
+				       wait, cookie, skb,
+				       IEEE80211_ROC_TYPE_MGMT_TX);
 	if (ret)
 		kfree_skb(skb);
  out_unlock:
···
 				     struct cfg80211_chan_def *chandef)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+	struct ieee80211_local *local = wiphy_priv(wiphy);
 	struct ieee80211_chanctx_conf *chanctx_conf;
 	int ret = -ENODATA;
 
···
 	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 	if (chanctx_conf) {
 		*chandef = chanctx_conf->def;
+		ret = 0;
+	} else if (local->open_count > 0 &&
+		   local->open_count == local->monitors &&
+		   sdata->vif.type == NL80211_IFTYPE_MONITOR) {
+		if (local->use_chanctx)
+			*chandef = local->monitor_chandef;
+		else
+			cfg80211_chandef_create(chandef,
+						local->_oper_channel,
+						local->_oper_channel_type);
 		ret = 0;
 	}
 	rcu_read_unlock();

net/mac80211/debugfs_sta.c

···
 }
 STA_OPS(ht_capa);
 
+static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
+				 size_t count, loff_t *ppos)
+{
+	char buf[128], *p = buf;
+	struct sta_info *sta = file->private_data;
+	struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
+
+	p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
+			vhtc->vht_supported ? "" : "not ");
+	if (vhtc->vht_supported) {
+		p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.8x\n", vhtc->cap);
+
+		p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
+			       le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
+		if (vhtc->vht_mcs.rx_highest)
+			p += scnprintf(p, sizeof(buf)+buf-p,
+				       "MCS RX highest: %d Mbps\n",
+				       le16_to_cpu(vhtc->vht_mcs.rx_highest));
+		p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
+			       le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
+		if (vhtc->vht_mcs.tx_highest)
+			p += scnprintf(p, sizeof(buf)+buf-p,
+				       "MCS TX highest: %d Mbps\n",
+				       le16_to_cpu(vhtc->vht_mcs.tx_highest));
+	}
+
+	return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
+}
+STA_OPS(vht_capa);
+
 static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf,
 					size_t count, loff_t *ppos)
 {
···
 	DEBUGFS_ADD(dev);
 	DEBUGFS_ADD(last_signal);
 	DEBUGFS_ADD(ht_capa);
+	DEBUGFS_ADD(vht_capa);
 	DEBUGFS_ADD(last_ack_signal);
 	DEBUGFS_ADD(current_tx_rate);
 	DEBUGFS_ADD(last_rx_rate);

net/mac80211/driver-ops.h

···
 static inline int drv_remain_on_channel(struct ieee80211_local *local,
 					struct ieee80211_sub_if_data *sdata,
 					struct ieee80211_channel *chan,
-					unsigned int duration)
+					unsigned int duration,
+					enum ieee80211_roc_type type)
 {
 	int ret;
 
 	might_sleep();
 
-	trace_drv_remain_on_channel(local, sdata, chan, duration);
+	trace_drv_remain_on_channel(local, sdata, chan, duration, type);
 	ret = local->ops->remain_on_channel(&local->hw, &sdata->vif,
-					    chan, duration);
+					    chan, duration, type);
 	trace_drv_return_int(local, ret);
 
 	return ret;

net/mac80211/ht.c

···
 	if (!ht_cap->ht_supported)
 		return;
 
-	if (sdata->vif.type != NL80211_IFTYPE_STATION) {
-		/* AP interfaces call this code when adding new stations,
-		 * so just silently ignore non station interfaces.
-		 */
-		return;
-	}
-
 	/* NOTE:  If you add more over-rides here, update register_hw
 	 * ht_capa_mod_msk logic in main.c as well.
 	 * And, if this method can ever change ht_cap.ht_supported, fix
···
 				       const struct ieee80211_ht_cap *ht_cap_ie,
 				       struct sta_info *sta)
 {
-	struct ieee80211_sta_ht_cap ht_cap;
+	struct ieee80211_sta_ht_cap ht_cap, own_cap;
 	u8 ampdu_info, tx_mcs_set_cap;
 	int i, max_tx_streams;
 	bool changed;
···
 
 	ht_cap.ht_supported = true;
 
+	own_cap = sband->ht_cap;
+
+	/*
+	 * If user has specified capability over-rides, take care
+	 * of that if the station we're setting up is the AP that
+	 * we advertised a restricted capability set to. Override
+	 * our own capabilities and then use those below.
+	 */
+	if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+	    !test_sta_flag(sta, WLAN_STA_TDLS_PEER))
+		ieee80211_apply_htcap_overrides(sdata, &own_cap);
+
 	/*
 	 * The bits listed in this expression should be
 	 * the same for the peer and us, if the station
···
 	 * we mask them out.
 	 */
 	ht_cap.cap = le16_to_cpu(ht_cap_ie->cap_info) &
-		(sband->ht_cap.cap |
-		 ~(IEEE80211_HT_CAP_LDPC_CODING |
-		   IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
-		   IEEE80211_HT_CAP_GRN_FLD |
-		   IEEE80211_HT_CAP_SGI_20 |
-		   IEEE80211_HT_CAP_SGI_40 |
-		   IEEE80211_HT_CAP_DSSSCCK40));
+		(own_cap.cap | ~(IEEE80211_HT_CAP_LDPC_CODING |
+				 IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
+				 IEEE80211_HT_CAP_GRN_FLD |
+				 IEEE80211_HT_CAP_SGI_20 |
+				 IEEE80211_HT_CAP_SGI_40 |
+				 IEEE80211_HT_CAP_DSSSCCK40));
 
 	/*
 	 * The STBC bits are asymmetric -- if we don't have
 	 * TX then mask out the peer's RX and vice versa.
 	 */
-	if (!(sband->ht_cap.cap & IEEE80211_HT_CAP_TX_STBC))
+	if (!(own_cap.cap & IEEE80211_HT_CAP_TX_STBC))
 		ht_cap.cap &= ~IEEE80211_HT_CAP_RX_STBC;
-	if (!(sband->ht_cap.cap & IEEE80211_HT_CAP_RX_STBC))
+	if (!(own_cap.cap & IEEE80211_HT_CAP_RX_STBC))
 		ht_cap.cap &= ~IEEE80211_HT_CAP_TX_STBC;
 
 	ampdu_info = ht_cap_ie->ampdu_params_info;
···
 		(ampdu_info & IEEE80211_HT_AMPDU_PARM_DENSITY) >> 2;
 
 	/* own MCS TX capabilities */
-	tx_mcs_set_cap = sband->ht_cap.mcs.tx_params;
+	tx_mcs_set_cap = own_cap.mcs.tx_params;
 
 	/* Copy peer MCS TX capabilities, the driver might need them. */
 	ht_cap.mcs.tx_params = ht_cap_ie->mcs.tx_params;
···
 	 */
 	for (i = 0; i < max_tx_streams; i++)
 		ht_cap.mcs.rx_mask[i] =
-			sband->ht_cap.mcs.rx_mask[i] & ht_cap_ie->mcs.rx_mask[i];
+			own_cap.mcs.rx_mask[i] & ht_cap_ie->mcs.rx_mask[i];
 
 	if (tx_mcs_set_cap & IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION)
 		for (i = IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE;
 		     i < IEEE80211_HT_MCS_MASK_LEN; i++)
 			ht_cap.mcs.rx_mask[i] =
-				sband->ht_cap.mcs.rx_mask[i] &
+				own_cap.mcs.rx_mask[i] &
 					ht_cap_ie->mcs.rx_mask[i];
 
 	/* handle MCS rate 32 too */
-	if (sband->ht_cap.mcs.rx_mask[32/8] & ht_cap_ie->mcs.rx_mask[32/8] & 1)
+	if (own_cap.mcs.rx_mask[32/8] & ht_cap_ie->mcs.rx_mask[32/8] & 1)
 		ht_cap.mcs.rx_mask[32/8] |= 1;
 
  apply:
-	/*
-	 * If user has specified capability over-rides, take care
-	 * of that here.
-	 */
-	ieee80211_apply_htcap_overrides(sdata, &ht_cap);
-
 	changed = memcmp(&sta->sta.ht_cap, &ht_cap, sizeof(ht_cap));
 
 	memcpy(&sta->sta.ht_cap, &ht_cap, sizeof(ht_cap));

net/mac80211/ibss.c

···
 {
 	struct ieee80211_sub_if_data *sdata =
 		(struct ieee80211_sub_if_data *) data;
-	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-	struct ieee80211_local *local = sdata->local;
 
-	if (local->quiescing) {
-		ifibss->timer_running = true;
-		return;
-	}
-
-	ieee80211_queue_work(&local->hw, &sdata->work);
+	ieee80211_queue_work(&sdata->local->hw, &sdata->work);
 }
-
-#ifdef CONFIG_PM
-void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
-	if (del_timer_sync(&ifibss->timer))
-		ifibss->timer_running = true;
-}
-
-void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
-	if (ifibss->timer_running) {
-		add_timer(&ifibss->timer);
-		ifibss->timer_running = false;
-	}
-}
-#endif
 
 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata)
 {

net/mac80211/ieee80211_i.h

···
 	u32 duration, req_duration;
 	struct sk_buff *frame;
 	u64 cookie, mgmt_tx_cookie;
+	enum ieee80211_roc_type type;
 };
 
 /* flags used in struct ieee80211_if_managed.flags */
···
 
 	u16 aid;
 
-	unsigned long timers_running; /* used for quiesce/restart */
 	bool powersave; /* powersave requested for this iface */
 	bool broken_ap; /* AP is broken -- turn off powersave */
 	u8 dtim_period;
···
 
 	struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
 	struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
+	struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
+	struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
 };
 
 struct ieee80211_if_ibss {
···
 	unsigned long last_scan_completed;
 
 	u32 basic_rates;
-
-	bool timer_running;
 
 	bool fixed_bssid;
 	bool fixed_channel;
···
 	struct timer_list mesh_path_timer;
 	struct timer_list mesh_path_root_timer;
 
-	unsigned long timers_running;
-
 	unsigned long wrkq_flags;
 
 	u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
···
 		IEEE80211_MESH_SEC_AUTHED = 0x1,
 		IEEE80211_MESH_SEC_SECURED = 0x2,
 	} security;
+	bool user_mpm;
 	/* Extensible Synchronization Framework */
 	const struct ieee80211_mesh_sync_ops *sync_ops;
 	s64 sync_offset_clockdrift_max;
···
 
 	/* count for keys needing tailroom space allocation */
 	int crypto_tx_tailroom_needed_cnt;
+	int crypto_tx_tailroom_pending_dec;
+	struct delayed_work dec_tailroom_needed_wk;
 
 	struct net_device *dev;
 	struct ieee80211_local *local;
···
 		struct dentry *default_multicast_key;
 		struct dentry *default_mgmt_key;
 	} debugfs;
-#endif
-
-#ifdef CONFIG_PM
-	struct ieee80211_bss_conf suspend_bss_conf;
 #endif
 
 	/* must be last, dynamically sized area in this! */
···
 
 	struct ieee80211_sub_if_data __rcu *p2p_sdata;
 
-	/* dummy netdev for use w/ NAPI */
-	struct net_device napi_dev;
-
-	struct napi_struct napi;
-
 	/* virtual monitor interface */
 	struct ieee80211_sub_if_data __rcu *monitor_sdata;
 	struct cfg80211_chan_def monitor_chandef;
···
 ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 				 const struct ieee80211_channel_sw_ie *sw_elem,
 				 struct ieee80211_bss *bss, u64 timestamp);
-void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
-void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 				  struct sk_buff *skb);
···
 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 			struct cfg80211_ibss_params *params);
 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
-void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
-void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 				   struct sk_buff *skb);
···
 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 				 struct sta_info *sta, u8 opmode,
 				 enum ieee80211_band band, bool nss_only);
+void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
+				      struct ieee80211_sta_vht_cap *vht_cap);
 
 /* Spectrum management */
 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,

net/mac80211/iface.c

···
 
 	lockdep_assert_held(&local->mtx);
 
-	active = !list_empty(&local->chanctx_list);
+	active = !list_empty(&local->chanctx_list) || local->monitors;
 
 	if (!local->ops->remain_on_channel) {
 		list_for_each_entry(roc, &local->roc_list, list) {
···
 		res = drv_start(local);
 		if (res)
 			goto err_del_bss;
-		if (local->ops->napi_poll)
-			napi_enable(&local->napi);
 		/* we're brought up, everything changes */
 		hw_reconf_flags = ~0;
 		ieee80211_led_radio(local, true);
···
 
 		ieee80211_adjust_monitor_flags(sdata, 1);
 		ieee80211_configure_filter(local);
+		mutex_lock(&local->mtx);
+		ieee80211_recalc_idle(local);
+		mutex_unlock(&local->mtx);
 
 		netif_carrier_on(dev);
 		break;
···
 
 		ieee80211_adjust_monitor_flags(sdata, -1);
 		ieee80211_configure_filter(local);
+		mutex_lock(&local->mtx);
+		ieee80211_recalc_idle(local);
+		mutex_unlock(&local->mtx);
 		break;
 	case NL80211_IFTYPE_P2P_DEVICE:
 		/* relies on synchronize_rcu() below */
···
 		rcu_barrier();
 		sta_info_flush_cleanup(sdata);
 
-		skb_queue_purge(&sdata->skb_queue);
-
 		/*
 		 * Free all remaining keys, there shouldn't be any,
-		 * except maybe group keys in AP more or WDS?
+		 * except maybe in WDS mode?
 		 */
 		ieee80211_free_keys(sdata);
+
+		/* fall through */
+	case NL80211_IFTYPE_AP:
+		skb_queue_purge(&sdata->skb_queue);
 
 		drv_remove_interface_debugfs(local, sdata);
 
···
 	ieee80211_recalc_ps(local, -1);
 
 	if (local->open_count == 0) {
-		if (local->ops->napi_poll)
-			napi_disable(&local->napi);
 		ieee80211_clear_tx_pending(local);
 		ieee80211_stop_device(local);
 
···
 	INIT_WORK(&sdata->cleanup_stations_wk, ieee80211_cleanup_sdata_stas_wk);
 	INIT_DELAYED_WORK(&sdata->dfs_cac_timer_work,
 			  ieee80211_dfs_cac_timer_work);
+	INIT_DELAYED_WORK(&sdata->dec_tailroom_needed_wk,
+			  ieee80211_delayed_tailroom_dec);
 
 	for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
 		struct ieee80211_supported_band *sband;

net/mac80211/key.c

···
 	return key;
 }
 
-static void __ieee80211_key_destroy(struct ieee80211_key *key)
+static void __ieee80211_key_destroy(struct ieee80211_key *key,
+				    bool delay_tailroom)
 {
 	if (!key)
 		return;
···
 	if (key->conf.cipher == WLAN_CIPHER_SUITE_AES_CMAC)
 		ieee80211_aes_cmac_key_free(key->u.aes_cmac.tfm);
 	if (key->local) {
+		struct ieee80211_sub_if_data *sdata = key->sdata;
+
 		ieee80211_debugfs_key_remove(key);
-		key->sdata->crypto_tx_tailroom_needed_cnt--;
+
+		if (delay_tailroom) {
+			/* see ieee80211_delayed_tailroom_dec */
+			sdata->crypto_tx_tailroom_pending_dec++;
+			schedule_delayed_work(&sdata->dec_tailroom_needed_wk,
+					      HZ/2);
+		} else {
+			sdata->crypto_tx_tailroom_needed_cnt--;
+		}
 	}
 
 	kfree(key);
···
 	key->sdata = sdata;
 	key->sta = sta;
 
-	if (sta) {
-		/*
-		 * some hardware cannot handle TKIP with QoS, so
-		 * we indicate whether QoS could be in use.
-		 */
-		if (test_sta_flag(sta, WLAN_STA_WME))
-			key->conf.flags |= IEEE80211_KEY_FLAG_WMM_STA;
-	} else {
-		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-			struct sta_info *ap;
-
-			/*
-			 * We're getting a sta pointer in, so must be under
-			 * appropriate locking for sta_info_get().
-			 */
-
-			/* same here, the AP could be using QoS */
-			ap = sta_info_get(key->sdata, key->sdata->u.mgd.bssid);
-			if (ap) {
-				if (test_sta_flag(ap, WLAN_STA_WME))
-					key->conf.flags |=
-						IEEE80211_KEY_FLAG_WMM_STA;
-			}
-		}
-	}
-
 	mutex_lock(&sdata->local->key_mtx);
 
 	if (sta && pairwise)
···
 	increment_tailroom_need_count(sdata);
 
 	__ieee80211_key_replace(sdata, sta, pairwise, old_key, key);
-	__ieee80211_key_destroy(old_key);
+	__ieee80211_key_destroy(old_key, true);
 
 	ieee80211_debugfs_key_add(key);
 
···
 	return ret;
 }
 
-void __ieee80211_key_free(struct ieee80211_key *key)
+void __ieee80211_key_free(struct ieee80211_key *key, bool delay_tailroom)
 {
 	if (!key)
 		return;
···
 		__ieee80211_key_replace(key->sdata, key->sta,
 				key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE,
 				key, NULL);
-	__ieee80211_key_destroy(key);
+	__ieee80211_key_destroy(key, delay_tailroom);
 }
 
 void ieee80211_key_free(struct ieee80211_local *local,
 			struct ieee80211_key *key)
 {
 	mutex_lock(&local->key_mtx);
-	__ieee80211_key_free(key);
+	__ieee80211_key_free(key, true);
 	mutex_unlock(&local->key_mtx);
 }
 
···
 }
 EXPORT_SYMBOL(ieee80211_iter_keys);
 
-void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_key *key;
-
-	ASSERT_RTNL();
-
-	mutex_lock(&sdata->local->key_mtx);
-
-	list_for_each_entry(key, &sdata->key_list, list)
-		ieee80211_key_disable_hw_accel(key);
-
-	mutex_unlock(&sdata->local->key_mtx);
-}
-
 void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_key *key, *tmp;
 
+	cancel_delayed_work_sync(&sdata->dec_tailroom_needed_wk);
+
 	mutex_lock(&sdata->local->key_mtx);
+
+	sdata->crypto_tx_tailroom_needed_cnt -=
+		sdata->crypto_tx_tailroom_pending_dec;
+	sdata->crypto_tx_tailroom_pending_dec = 0;
 
 	ieee80211_debugfs_key_remove_mgmt_default(sdata);
 
 	list_for_each_entry_safe(key, tmp, &sdata->key_list, list)
-		__ieee80211_key_free(key);
+		__ieee80211_key_free(key, false);
 
 	ieee80211_debugfs_key_update_default(sdata);
+
+	WARN_ON_ONCE(sdata->crypto_tx_tailroom_needed_cnt ||
+		     sdata->crypto_tx_tailroom_pending_dec);
 
 	mutex_unlock(&sdata->local->key_mtx);
 }
 
+void ieee80211_delayed_tailroom_dec(struct work_struct *wk)
+{
+	struct ieee80211_sub_if_data *sdata;
+
+	sdata = container_of(wk, struct ieee80211_sub_if_data,
+			     dec_tailroom_needed_wk.work);
+
+	/*
+	 * The reason for the delayed tailroom needed decrementing is to
+	 * make roaming faster: during roaming, all keys are first deleted
+	 * and then new keys are installed. The first new key causes the
+	 * crypto_tx_tailroom_needed_cnt to go from 0 to 1, which invokes
+	 * the cost of synchronize_net() (which can be slow). Avoid this
+	 * by deferring the crypto_tx_tailroom_needed_cnt decrementing on
+	 * key removal for a while, so if we roam the value is larger than
+	 * zero and no 0->1 transition happens.
+	 *
+	 * The cost is that if the AP switching was from an AP with keys
+	 * to one without, we still allocate tailroom while it would no
+	 * longer be needed. However, in the typical (fast) roaming case
+	 * within an ESS this usually won't happen.
+	 */
+
+	mutex_lock(&sdata->local->key_mtx);
+	sdata->crypto_tx_tailroom_needed_cnt -=
+		sdata->crypto_tx_tailroom_pending_dec;
+	sdata->crypto_tx_tailroom_pending_dec = 0;
+	mutex_unlock(&sdata->local->key_mtx);
+}
 
 void ieee80211_gtk_rekey_notify(struct ieee80211_vif *vif, const u8 *bssid,
 				const u8 *replay_ctr, gfp_t gfp)

net/mac80211/key.h

···
 int __must_check ieee80211_key_link(struct ieee80211_key *key,
 				    struct ieee80211_sub_if_data *sdata,
 				    struct sta_info *sta);
-void __ieee80211_key_free(struct ieee80211_key *key);
+void __ieee80211_key_free(struct ieee80211_key *key, bool delay_tailroom);
 void ieee80211_key_free(struct ieee80211_local *local,
 			struct ieee80211_key *key);
 void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx,
···
 				    int idx);
 void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata);
 void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata);
-void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata);
 
 #define key_mtx_dereference(local, ref) \
 	rcu_dereference_protected(ref, lockdep_is_held(&((local)->key_mtx)))
+
+void ieee80211_delayed_tailroom_dec(struct work_struct *wk);
 
 #endif /* IEEE80211_KEY_H */

net/mac80211/main.c

···
 }
 #endif
 
-static int ieee80211_napi_poll(struct napi_struct *napi, int budget)
-{
-	struct ieee80211_local *local =
-		container_of(napi, struct ieee80211_local, napi);
-
-	return local->ops->napi_poll(&local->hw, budget);
-}
-
-void ieee80211_napi_schedule(struct ieee80211_hw *hw)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-
-	napi_schedule(&local->napi);
-}
-EXPORT_SYMBOL(ieee80211_napi_schedule);
-
-void ieee80211_napi_complete(struct ieee80211_hw *hw)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-
-	napi_complete(&local->napi);
-}
-EXPORT_SYMBOL(ieee80211_napi_complete);
-
 /* There isn't a lot of sense in it, but you can transmit anything you like */
 static const struct ieee80211_txrx_stypes
 ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = {
···
 	},
 };
 
+static const struct ieee80211_vht_cap mac80211_vht_capa_mod_mask = {
+	.vht_cap_info =
+		cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC |
+			    IEEE80211_VHT_CAP_SHORT_GI_80 |
+			    IEEE80211_VHT_CAP_SHORT_GI_160 |
+			    IEEE80211_VHT_CAP_RXSTBC_1 |
+			    IEEE80211_VHT_CAP_RXSTBC_2 |
+			    IEEE80211_VHT_CAP_RXSTBC_3 |
+			    IEEE80211_VHT_CAP_RXSTBC_4 |
+			    IEEE80211_VHT_CAP_TXSTBC |
+			    IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
+			    IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
+			    IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
+			    IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
+			    IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK),
+	.supp_mcs = {
+		.rx_mcs_map = cpu_to_le16(~0),
+		.tx_mcs_map = cpu_to_le16(~0),
+	},
+};
+
 static const u8 extended_capabilities[] = {
 	0, 0, 0, 0, 0, 0, 0,
 	WLAN_EXT_CAPA8_OPMODE_NOTIF,
···
 	wiphy->features |= NL80211_FEATURE_SK_TX_STATUS |
 			   NL80211_FEATURE_SAE |
 			   NL80211_FEATURE_HT_IBSS |
-			   NL80211_FEATURE_VIF_TXPOWER;
+			   NL80211_FEATURE_VIF_TXPOWER |
+			   NL80211_FEATURE_USERSPACE_MPM;
 
 	if (!ops->hw_scan)
 		wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN |
···
 					 IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH;
 	local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
 	wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask;
+	wiphy->vht_capa_mod_mask = &mac80211_vht_capa_mod_mask;
 
 	INIT_LIST_HEAD(&local->interfaces);
 
···
 
 	skb_queue_head_init(&local->skb_queue);
 	skb_queue_head_init(&local->skb_queue_unreliable);
-
-	/* init dummy netdev for use w/ NAPI */
-	init_dummy_netdev(&local->napi_dev);
 
 	ieee80211_led_names(local);
 
···
 	if (result)
 		goto fail_ifa6;
 #endif
-
-	netif_napi_add(&local->napi_dev, &local->napi, ieee80211_napi_poll,
-			local->hw.napi_weight);
 
 	return 0;
 

net/mac80211/mesh.c

···
 #include "ieee80211_i.h"
 #include "mesh.h"
 
-#define TMR_RUNNING_HK	0
-#define TMR_RUNNING_MP	1
-#define TMR_RUNNING_MPR	2
-
 static int mesh_allocated;
 static struct kmem_cache *rm_cache;
 
···
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 
 	set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags);
-
-	if (local->quiescing) {
-		set_bit(TMR_RUNNING_HK, &ifmsh->timers_running);
-		return;
-	}
 
 	ieee80211_queue_work(&local->hw, &sdata->work);
 }
···
 	 * an update.
 	 */
 	changed = mesh_accept_plinks_update(sdata);
-	if (sdata->u.mesh.security == IEEE80211_MESH_SEC_NONE) {
+	if (!sdata->u.mesh.user_mpm) {
 		changed |= mesh_plink_deactivate(sta);
 		del_timer_sync(&sta->plink_timer);
 	}
···
 {
 	struct ieee80211_sub_if_data *sdata =
 		(struct ieee80211_sub_if_data *) data;
-	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
-	struct ieee80211_local *local = sdata->local;
 
-	if (local->quiescing) {
-		set_bit(TMR_RUNNING_MP, &ifmsh->timers_running);
-		return;
-	}
-
-	ieee80211_queue_work(&local->hw, &sdata->work);
+	ieee80211_queue_work(&sdata->local->hw, &sdata->work);
 }
 
 static void ieee80211_mesh_path_root_timer(unsigned long data)
···
 	struct ieee80211_sub_if_data *sdata =
 		(struct ieee80211_sub_if_data *) data;
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
-	struct ieee80211_local *local = sdata->local;
 
 	set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags);
 
-	if (local->quiescing) {
-		set_bit(TMR_RUNNING_MPR, &ifmsh->timers_running);
-		return;
-	}
-
-	ieee80211_queue_work(&local->hw, &sdata->work);
+	ieee80211_queue_work(&sdata->local->hw, &sdata->work);
 }
 
 void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh)
···
 	mod_timer(&ifmsh->mesh_path_root_timer,
 		  round_jiffies(TU_TO_EXP_TIME(interval)));
 }
-
-#ifdef CONFIG_PM
-void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
-
-	/* use atomic bitops in case all timers fire at the same time */
-
-	if (del_timer_sync(&ifmsh->housekeeping_timer))
-		set_bit(TMR_RUNNING_HK, &ifmsh->timers_running);
-	if (del_timer_sync(&ifmsh->mesh_path_timer))
-		set_bit(TMR_RUNNING_MP, &ifmsh->timers_running);
-	if (del_timer_sync(&ifmsh->mesh_path_root_timer))
-		set_bit(TMR_RUNNING_MPR, &ifmsh->timers_running);
-}
-
-void ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
-
-	if (test_and_clear_bit(TMR_RUNNING_HK, &ifmsh->timers_running))
-		add_timer(&ifmsh->housekeeping_timer);
-	if (test_and_clear_bit(TMR_RUNNING_MP, &ifmsh->timers_running))
-		add_timer(&ifmsh->mesh_path_timer);
-	if (test_and_clear_bit(TMR_RUNNING_MPR, &ifmsh->timers_running))
-		add_timer(&ifmsh->mesh_path_root_timer);
-	ieee80211_mesh_root_setup(ifmsh);
-}
-#endif
 
 static int
 ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh)
···
 	local->fif_other_bss--;
 	atomic_dec(&local->iff_allmultis);
 	ieee80211_configure_filter(local);
-
-	sdata->u.mesh.timers_running = 0;
 }
 
 static void

net/mac80211/mesh.h

···
 void mesh_path_flush_by_nexthop(struct sta_info *sta);
 void mesh_path_discard_frame(struct ieee80211_sub_if_data *sdata,
 			     struct sk_buff *skb);
-void mesh_path_quiesce(struct ieee80211_sub_if_data *sdata);
-void mesh_path_restart(struct ieee80211_sub_if_data *sdata);
 void mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata);
 
 bool mesh_action_is_path_sel(struct ieee80211_mgmt *mgmt);
···
 
 void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local);
 
-void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata);
-void ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata);
-void mesh_plink_quiesce(struct sta_info *sta);
-void mesh_plink_restart(struct sta_info *sta);
 void mesh_path_flush_by_iface(struct ieee80211_sub_if_data *sdata);
 void mesh_sync_adjust_tbtt(struct ieee80211_sub_if_data *sdata);
 void ieee80211s_stop(void);
 #else
 static inline void
 ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local) {}
-static inline void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata)
-{}
-static inline void ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata)
-{}
-static inline void mesh_plink_quiesce(struct sta_info *sta) {}
-static inline void mesh_plink_restart(struct sta_info *sta) {}
 static inline bool mesh_path_sel_is_hwmp(struct ieee80211_sub_if_data *sdata)
 { return false; }
 static inline void mesh_path_flush_by_iface(struct ieee80211_sub_if_data *sdata)

net/mac80211/mesh_plink.c

···
 		return NULL;
 
 	sta->plink_state = NL80211_PLINK_LISTEN;
-	init_timer(&sta->plink_timer);
 
 	sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
 	sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
···
 {
 	struct sta_info *sta = NULL;
 
-	/* Userspace handles peer allocation when security is enabled */
-	if (sdata->u.mesh.security & IEEE80211_MESH_SEC_AUTHED)
+	/* Userspace handles station allocation */
+	if (sdata->u.mesh.user_mpm ||
+	    sdata->u.mesh.security & IEEE80211_MESH_SEC_AUTHED)
 		cfg80211_notify_new_peer_candidate(sdata->dev, addr,
 						   elems->ie_start,
 						   elems->total_len,
···
 	 */
 	sta = (struct sta_info *) data;
 
-	if (sta->sdata->local->quiescing) {
-		sta->plink_timer_was_running = true;
+	if (sta->sdata->local->quiescing)
 		return;
-	}
 
 	spin_lock_bh(&sta->lock);
 	if (sta->ignore_plink_timer) {
···
 		break;
 	}
 }
-
-#ifdef CONFIG_PM
-void mesh_plink_quiesce(struct sta_info *sta)
-{
-	if (!ieee80211_vif_is_mesh(&sta->sdata->vif))
-		return;
-
-	/* no kernel mesh sta timers have been initialized */
-	if (sta->sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
-		return;
-
-	if (del_timer_sync(&sta->plink_timer))
-		sta->plink_timer_was_running = true;
-}
-
-void mesh_plink_restart(struct sta_info *sta)
-{
-	if (sta->plink_timer_was_running) {
-		add_timer(&sta->plink_timer);
-		sta->plink_timer_was_running = false;
-	}
-}
-#endif
 
 static inline void mesh_plink_timer_set(struct sta_info *sta, int timeout)
 {
···
 
 	/* need action_code, aux */
 	if (len < IEEE80211_MIN_ACTION_SIZE + 3)
+		return;
+
+	if (sdata->u.mesh.user_mpm)
+		/* userspace must register for these */
 		return;
 
 	if (is_multicast_ether_addr(mgmt->da)) {

net/mac80211/mlme.c

···
  */
 #define IEEE80211_SIGNAL_AVE_MIN_COUNT	4
 
-#define TMR_RUNNING_TIMER	0
-#define TMR_RUNNING_CHANSW	1
-
 /*
  * All cfg80211 functions have to be called outside a locked
  * section so that they can acquire a lock themselves... This
···
 	BUILD_BUG_ON(sizeof(vht_cap) != sizeof(sband->vht_cap));
 
 	memcpy(&vht_cap, &sband->vht_cap, sizeof(vht_cap));
+	ieee80211_apply_vhtcap_overrides(sdata, &vht_cap);
 
 	/* determine capability flags */
 	cap = vht_cap.cap;
···
 								mask) >> shift;
 		our_mcs = (le16_to_cpu(vht_cap.vht_mcs.rx_mcs_map) &
 								mask) >> shift;
+
+		if (our_mcs == IEEE80211_VHT_MCS_NOT_SUPPORTED)
+			continue;
 
 		switch (ap_mcs) {
 		default:
···
 {
 	struct ieee80211_sub_if_data *sdata =
 		(struct ieee80211_sub_if_data *) data;
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
-	if (sdata->local->quiescing) {
-		set_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running);
-		return;
-	}
-
-	ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
+	ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.chswitch_work);
 }
 
 void
···
 	sdata->vif.bss_conf.p2p_ctwindow = 0;
 	sdata->vif.bss_conf.p2p_oppps = false;
 
-	/* on the next assoc, re-program HT parameters */
+	/* on the next assoc, re-program HT/VHT parameters */
 	memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa));
 	memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask));
+	memset(&ifmgd->vht_capa, 0, sizeof(ifmgd->vht_capa));
+	memset(&ifmgd->vht_capa_mask, 0, sizeof(ifmgd->vht_capa_mask));
 
 	sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL;
 
···
 	del_timer_sync(&sdata->u.mgd.bcn_mon_timer);
 	del_timer_sync(&sdata->u.mgd.timer);
 	del_timer_sync(&sdata->u.mgd.chswitch_timer);
-
-	sdata->u.mgd.timers_running = 0;
 
 	sdata->vif.bss_conf.dtim_period = 0;
 
···
 {
 	struct ieee80211_sub_if_data *sdata =
 		(struct ieee80211_sub_if_data *) data;
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-	struct ieee80211_local *local = sdata->local;
 
-	if (local->quiescing) {
-		set_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running);
-		return;
-	}
-
-	ieee80211_queue_work(&local->hw, &sdata->work);
+	ieee80211_queue_work(&sdata->local->hw, &sdata->work);
 }
 
 static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
···
 		ieee80211_queue_work(&sdata->local->hw, &sdata->work);
 	}
 }
-
-#ifdef CONFIG_PM
-void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-
-	/*
-	 * we need to use atomic bitops for the running bits
-	 * only because both timers might fire at the same
-	 * time -- the code here is properly synchronised.
-	 */
-
-	cancel_work_sync(&ifmgd->request_smps_work);
-
-	cancel_work_sync(&ifmgd->monitor_work);
-	cancel_work_sync(&ifmgd->beacon_connection_loss_work);
-	cancel_work_sync(&ifmgd->csa_connection_drop_work);
-	if (del_timer_sync(&ifmgd->timer))
-		set_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running);
-
-	cancel_work_sync(&ifmgd->chswitch_work);
-	if (del_timer_sync(&ifmgd->chswitch_timer))
-		set_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running);
-
-	/* these will just be re-established on connection */
-	del_timer_sync(&ifmgd->conn_mon_timer);
-	del_timer_sync(&ifmgd->bcn_mon_timer);
-}
-
-void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-
-	mutex_lock(&ifmgd->mtx);
-	if (!ifmgd->associated) {
-		mutex_unlock(&ifmgd->mtx);
-		return;
-	}
-
-	if (sdata->flags & IEEE80211_SDATA_DISCONNECT_RESUME) {
-		sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME;
-		mlme_dbg(sdata, "driver requested disconnect after resume\n");
-		ieee80211_sta_connection_lost(sdata,
-					      ifmgd->associated->bssid,
-					      WLAN_REASON_UNSPECIFIED,
-					      true);
-		mutex_unlock(&ifmgd->mtx);
-		return;
-	}
-	mutex_unlock(&ifmgd->mtx);
-
-	if (test_and_clear_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running))
-		add_timer(&ifmgd->timer);
-	if (test_and_clear_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running))
-		add_timer(&ifmgd->chswitch_timer);
-	ieee80211_sta_reset_beacon_monitor(sdata);
-
-	mutex_lock(&sdata->local->mtx);
-	ieee80211_restart_sta_timer(sdata);
-	mutex_unlock(&sdata->local->mtx);
-}
-#endif
 
 /* interface setup */
 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
···
 		ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
 	}
 
+	if (req->flags & ASSOC_REQ_DISABLE_VHT)
+		ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
+
 	/* Also disable HT if we don't support it or the AP doesn't use WMM */
 	sband = local->hw.wiphy->bands[req->bss->channel->band];
 	if (!sband->ht_cap.ht_supported ||
···
 	memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa));
 	memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask,
 	       sizeof(ifmgd->ht_capa_mask));
+
+	memcpy(&ifmgd->vht_capa, &req->vht_capa, sizeof(ifmgd->vht_capa));
+	memcpy(&ifmgd->vht_capa_mask, &req->vht_capa_mask,
+	       sizeof(ifmgd->vht_capa_mask));
 
 	if (req->ie && req->ie_len) {
 		memcpy(assoc_data->ie, req->ie, req->ie_len);
···
 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+	/*
+	 * Make sure some work items will not run after this,
+	 * they will not do anything but might not have been
+	 * cancelled when disconnecting.
+	 */
+	cancel_work_sync(&ifmgd->monitor_work);
+	cancel_work_sync(&ifmgd->beacon_connection_loss_work);
+	cancel_work_sync(&ifmgd->request_smps_work);
+	cancel_work_sync(&ifmgd->csa_connection_drop_work);
+	cancel_work_sync(&ifmgd->chswitch_work);
 
 	mutex_lock(&ifmgd->mtx);
 	if (ifmgd->assoc_data)

net/mac80211/offchannel.c

···
 			duration = 10;
 
 		ret = drv_remain_on_channel(local, roc->sdata, roc->chan,
-					    duration);
+					    duration, roc->type);
 
 		roc->started = true;
 

net/mac80211/pm.c

···
 #include "driver-ops.h"
 #include "led.h"
 
-/* return value indicates whether the driver should be further notified */
-static void ieee80211_quiesce(struct ieee80211_sub_if_data *sdata)
-{
-	switch (sdata->vif.type) {
-	case NL80211_IFTYPE_STATION:
-		ieee80211_sta_quiesce(sdata);
-		break;
-	case NL80211_IFTYPE_ADHOC:
-		ieee80211_ibss_quiesce(sdata);
-		break;
-	case NL80211_IFTYPE_MESH_POINT:
-		ieee80211_mesh_quiesce(sdata);
-		break;
-	default:
-		break;
-	}
-
-	cancel_work_sync(&sdata->work);
-}
-
 int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
-	struct ieee80211_chanctx *ctx;
 
 	if (!local->open_count)
 		goto suspend;
···
 			return err;
 		} else if (err > 0) {
 			WARN_ON(err != 1);
-			local->wowlan = false;
+			return err;
 		} else {
-			list_for_each_entry(sdata, &local->interfaces, list)
-				if (ieee80211_sdata_running(sdata))
-					ieee80211_quiesce(sdata);
 			goto suspend;
 		}
 	}
-
-	/* disable keys */
-	list_for_each_entry(sdata, &local->interfaces, list)
-		ieee80211_disable_keys(sdata);
 
 	/* tear down aggregation sessions and remove STAs */
 	mutex_lock(&local->sta_mtx);
···
 				WARN_ON(drv_sta_state(local, sta->sdata, sta,
 						      state, state - 1));
 		}
-
-		mesh_plink_quiesce(sta);
 	}
 	mutex_unlock(&local->sta_mtx);
 
 	/* remove all interfaces */
 	list_for_each_entry(sdata, &local->interfaces, list) {
-		static u8 zero_addr[ETH_ALEN] = {};
-		u32 changed = 0;
-
 		if (!ieee80211_sdata_running(sdata))
 			continue;
-
-		switch (sdata->vif.type) {
-		case NL80211_IFTYPE_AP_VLAN:
-		case NL80211_IFTYPE_MONITOR:
-			/* skip these */
-			continue;
-		case NL80211_IFTYPE_STATION:
-			if (sdata->vif.bss_conf.assoc)
-				changed = BSS_CHANGED_ASSOC |
-					  BSS_CHANGED_BSSID |
-					  BSS_CHANGED_IDLE;
-			break;
-		case NL80211_IFTYPE_AP:
-		case NL80211_IFTYPE_ADHOC:
-		case NL80211_IFTYPE_MESH_POINT:
-			if (sdata->vif.bss_conf.enable_beacon)
-				changed = BSS_CHANGED_BEACON_ENABLED;
-			break;
-		default:
-			break;
-		}
-
-		ieee80211_quiesce(sdata);
-
-		sdata->suspend_bss_conf = sdata->vif.bss_conf;
-		memset(&sdata->vif.bss_conf, 0, sizeof(sdata->vif.bss_conf));
-		sdata->vif.bss_conf.idle = true;
-		if (sdata->suspend_bss_conf.bssid)
-			sdata->vif.bss_conf.bssid = zero_addr;
-
-		/* disable beaconing or remove association */
-		ieee80211_bss_info_change_notify(sdata, changed);
-
-		if (sdata->vif.type == NL80211_IFTYPE_AP &&
-		    rcu_access_pointer(sdata->u.ap.beacon))
-			drv_stop_ap(local, sdata);
-
-		if (local->use_chanctx) {
-			struct ieee80211_chanctx_conf *conf;
-
-			mutex_lock(&local->chanctx_mtx);
-			conf = rcu_dereference_protected(
-					sdata->vif.chanctx_conf,
-					lockdep_is_held(&local->chanctx_mtx));
-			if (conf) {
-				ctx = container_of(conf,
-						   struct ieee80211_chanctx,
-						   conf);
-				drv_unassign_vif_chanctx(local, sdata, ctx);
-			}
-
-			mutex_unlock(&local->chanctx_mtx);
-		}
 		drv_remove_interface(local, sdata);
 	}
 
 	sdata = rtnl_dereference(local->monitor_sdata);
-	if (sdata) {
-		if (local->use_chanctx) {
-			struct ieee80211_chanctx_conf *conf;
-
-			mutex_lock(&local->chanctx_mtx);
-			conf = rcu_dereference_protected(
-					sdata->vif.chanctx_conf,
-					lockdep_is_held(&local->chanctx_mtx));
-			if (conf) {
-				ctx = container_of(conf,
-						   struct ieee80211_chanctx,
-						   conf);
-				drv_unassign_vif_chanctx(local, sdata, ctx);
-			}
-
-			mutex_unlock(&local->chanctx_mtx);
-		}
-
+	if (sdata)
 		drv_remove_interface(local, sdata);
-	}
 
-	mutex_lock(&local->chanctx_mtx);
-	list_for_each_entry(ctx, &local->chanctx_list, list)
-		drv_remove_chanctx(local, ctx);
-	mutex_unlock(&local->chanctx_mtx);
+	/*
+	 * We disconnected on all interfaces before suspend, all channel
+	 * contexts should be released.
+	 */
+	WARN_ON(!list_empty(&local->chanctx_list));
 
 	/* stop hardware - this must stop RX */
 	if (local->open_count)

net/mac80211/rc80211_minstrel.c

···
 #include "rate.h"
 #include "rc80211_minstrel.h"
 
-#define SAMPLE_COLUMNS	10
 #define SAMPLE_TBL(_mi, _idx, _col) \
 		_mi->sample_table[(_idx * SAMPLE_COLUMNS) + _col]
 
···
 	return i;
 }
 
+/* find & sort topmost throughput rates */
+static inline void
+minstrel_sort_best_tp_rates(struct minstrel_sta_info *mi, int i, u8 *tp_list)
+{
+	int j = MAX_THR_RATES;
+
+	while (j > 0 && mi->r[i].cur_tp > mi->r[tp_list[j - 1]].cur_tp)
+		j--;
+	if (j < MAX_THR_RATES - 1)
+		memmove(&tp_list[j + 1], &tp_list[j], MAX_THR_RATES - (j + 1));
+	if (j < MAX_THR_RATES)
+		tp_list[j] = i;
+}
+
 static void
 minstrel_update_stats(struct minstrel_priv *mp, struct minstrel_sta_info *mi)
 {
-	u32 max_tp = 0, index_max_tp = 0, index_max_tp2 = 0;
-	u32 max_prob = 0, index_max_prob = 0;
+	u8 tmp_tp_rate[MAX_THR_RATES];
+	u8 tmp_prob_rate = 0;
 	u32 usecs;
-	u32 p;
 	int i;
 
-	mi->stats_update = jiffies;
+	for (i=0; i < MAX_THR_RATES; i++)
+	    tmp_tp_rate[i] = 0;
+
 	for (i = 0; i < mi->n_rates; i++) {
 		struct minstrel_rate *mr = &mi->r[i];
 
···
 		if (!usecs)
 			usecs = 1000000;
 
-		/* To avoid rounding issues, probabilities scale from 0 (0%)
-		 * to 18000 (100%) */
-		if (mr->attempts) {
-			p = (mr->success * 18000) / mr->attempts;
+		if (unlikely(mr->attempts > 0)) {
+			mr->sample_skipped = 0;
+			mr->cur_prob = MINSTREL_FRAC(mr->success, mr->attempts);
 			mr->succ_hist += mr->success;
 			mr->att_hist += mr->attempts;
-			mr->cur_prob = p;
-			p = ((p * (100 - mp->ewma_level)) + (mr->probability *
-				mp->ewma_level)) / 100;
-			mr->probability = p;
-			mr->cur_tp = p * (1000000 / usecs);
-		}
+			mr->probability = minstrel_ewma(mr->probability,
+							mr->cur_prob,
+							EWMA_LEVEL);
+		} else
+			mr->sample_skipped++;
 
 		mr->last_success = mr->success;
 		mr->last_attempts = mr->attempts;
 		mr->success = 0;
 		mr->attempts = 0;
 
+		/* Update throughput per rate, reset thr. below 10% success */
+		if (mr->probability < MINSTREL_FRAC(10, 100))
+			mr->cur_tp = 0;
+		else
+			mr->cur_tp = mr->probability * (1000000 / usecs);
+
 		/* Sample less often below the 10% chance of success.
 		 * Sample less often above the 95% chance of success. */
-		if ((mr->probability > 17100) || (mr->probability < 1800)) {
+		if (mr->probability > MINSTREL_FRAC(95, 100) ||
+		    mr->probability < MINSTREL_FRAC(10, 100)) {
 			mr->adjusted_retry_count = mr->retry_count >> 1;
 			if (mr->adjusted_retry_count > 2)
 				mr->adjusted_retry_count = 2;
···
 		}
 		if (!mr->adjusted_retry_count)
 			mr->adjusted_retry_count = 2;
-	}
 
-	for (i = 0; i < mi->n_rates; i++) {
-		struct minstrel_rate *mr = &mi->r[i];
-		if (max_tp < mr->cur_tp) {
-			index_max_tp = i;
-			max_tp = mr->cur_tp;
-		}
-		if (max_prob < mr->probability) {
-			index_max_prob = i;
-			max_prob = mr->probability;
-		}
-	}
+		minstrel_sort_best_tp_rates(mi, i, tmp_tp_rate);
 
-	max_tp = 0;
-	for (i = 0; i < mi->n_rates; i++) {
-		struct minstrel_rate *mr = &mi->r[i];
-
-		if (i == index_max_tp)
-			continue;
-
-		if (max_tp < mr->cur_tp) {
-			index_max_tp2 = i;
-			max_tp = mr->cur_tp;
+		/* To determine the most robust rate (max_prob_rate) used at
+		 * 3rd mmr stage we distinct between two cases:
+		 * (1) if any success probabilitiy >= 95%, out of those rates
+		 * choose the maximum throughput rate as max_prob_rate
+		 * (2) if all success probabilities < 95%, the rate with
+		 * highest success probability is choosen as max_prob_rate */
+		if (mr->probability >= MINSTREL_FRAC(95,100)) {
+			if (mr->cur_tp >= mi->r[tmp_prob_rate].cur_tp)
+				tmp_prob_rate = i;
+		} else {
+			if (mr->probability >= mi->r[tmp_prob_rate].probability)
+				tmp_prob_rate = i;
 		}
 	}
-	mi->max_tp_rate = index_max_tp;
-	mi->max_tp_rate2 = index_max_tp2;
-	mi->max_prob_rate = index_max_prob;
+
+	/* Assign the new rate set */
+	memcpy(mi->max_tp_rate, tmp_tp_rate, sizeof(mi->max_tp_rate));
+	mi->max_prob_rate = tmp_prob_rate;
+
+	/* Reset update timer */
+	mi->stats_update = jiffies;
 }
 
 static void
···
 minstrel_get_next_sample(struct minstrel_sta_info *mi)
 {
 	unsigned int sample_ndx;
-	sample_ndx = SAMPLE_TBL(mi, mi->sample_idx, mi->sample_column);
-	mi->sample_idx++;
-	if ((int) mi->sample_idx > (mi->n_rates - 2)) {
-		mi->sample_idx = 0;
+	sample_ndx = SAMPLE_TBL(mi, mi->sample_row, mi->sample_column);
+	mi->sample_row++;
+	if ((int) mi->sample_row >= mi->n_rates) {
+		mi->sample_row = 0;
 		mi->sample_column++;
 		if (mi->sample_column >= SAMPLE_COLUMNS)
 			mi->sample_column = 0;
···
 	struct minstrel_priv *mp = priv;
 	struct ieee80211_tx_rate *ar = info->control.rates;
 	unsigned int ndx, sample_ndx = 0;
-	bool mrr;
-	bool sample_slower = false;
-	bool sample = false;
+	bool mrr_capable;
+	bool indirect_rate_sampling = false;
+	bool rate_sampling = false;
 	int i, delta;
 	int mrr_ndx[3];
-	int sample_rate;
+	int sampling_ratio;
 
+	/* management/no-ack frames do not use rate control */
 	if (rate_control_send_low(sta, priv_sta, txrc))
 		return;
 
-	mrr = mp->has_mrr && !txrc->rts && !txrc->bss_conf->use_cts_prot;
-
-	ndx = mi->max_tp_rate;
-
-	if (mrr)
-		sample_rate = mp->lookaround_rate_mrr;
+	/* check multi-rate-retry capabilities & adjust lookaround_rate */
+	mrr_capable = mp->has_mrr &&
+		      !txrc->rts &&
+		      !txrc->bss_conf->use_cts_prot;
+	if (mrr_capable)
+		sampling_ratio = mp->lookaround_rate_mrr;
 	else
-		sample_rate = mp->lookaround_rate;
+		sampling_ratio = mp->lookaround_rate;
 
+	/* init rateindex [ndx] with max throughput rate */
+	ndx = mi->max_tp_rate[0];
+
+	/* increase sum packet counter */
 	mi->packet_count++;
-	delta = (mi->packet_count * sample_rate / 100) -
+
+	delta = (mi->packet_count * sampling_ratio / 100) -
 			(mi->sample_count + mi->sample_deferred / 2);
 
 	/* delta > 0: sampling required */
-	if ((delta > 0) && (mrr || !mi->prev_sample)) {
+	if ((delta > 0) && (mrr_capable || !mi->prev_sample)) {
 		struct minstrel_rate *msr;
 		if (mi->packet_count >= 10000) {
 			mi->sample_deferred = 0;
···
 			mi->sample_count += (delta - mi->n_rates * 2);
 		}
 
+		/* get next random rate sample */
 		sample_ndx = minstrel_get_next_sample(mi);
 		msr = &mi->r[sample_ndx];
-		sample = true;
-		sample_slower = mrr && (msr->perfect_tx_time >
-			mi->r[ndx].perfect_tx_time);
+		rate_sampling = true;
 
-		if (!sample_slower) {
+		/* Decide if direct ( 1st mrr stage) or indirect (2nd mrr stage)
+		 * rate sampling method should be used.
+		 * Respect such rates that are not sampled for 20 interations.
+		 */
+		if (mrr_capable &&
+		    msr->perfect_tx_time > mi->r[ndx].perfect_tx_time &&
+		    msr->sample_skipped < 20)
+				indirect_rate_sampling = true;
+
+		if (!indirect_rate_sampling) {
 			if (msr->sample_limit != 0) {
 				ndx = sample_ndx;
 				mi->sample_count++;
 				if (msr->sample_limit > 0)
 					msr->sample_limit--;
-			} else {
-				sample = false;
-			}
+			} else
+				rate_sampling = false;
 		} else {
 			/* Only use IEEE80211_TX_CTL_RATE_CTRL_PROBE to mark
 			 * packets that have the sampling rate deferred to the
···
 			mi->sample_deferred++;
 		}
 	}
-	mi->prev_sample = sample;
+	mi->prev_sample = rate_sampling;
 
 	/* If we're not using MRR and the sampling rate already
 	 * has a probability of >95%, we shouldn't be attempting
 	 * to use it, as this only wastes precious airtime */
-	if (!mrr && sample && (mi->r[ndx].probability > 17100))
-		ndx = mi->max_tp_rate;
+	if (!mrr_capable && rate_sampling &&
+	   (mi->r[ndx].probability > MINSTREL_FRAC(95, 100)))
+		ndx = mi->max_tp_rate[0];
 
+	/* mrr setup for 1st stage */
 	ar[0].idx = mi->r[ndx].rix;
 	ar[0].count = minstrel_get_retry_count(&mi->r[ndx], info);
 
-	if (!mrr) {
-		if (!sample)
+	/* non mrr setup for 2nd stage */
+	if (!mrr_capable) {
+		if (!rate_sampling)
 			ar[0].count = mp->max_retry;
 		ar[1].idx = mi->lowest_rix;
 		ar[1].count = mp->max_retry;
 		return;
 	}
 
-	/* MRR setup */
-	if (sample) {
-		if (sample_slower)
+	/* mrr setup for 2nd stage */
+	if (rate_sampling) {
+		if (indirect_rate_sampling)
 			mrr_ndx[0] = sample_ndx;
 		else
-			mrr_ndx[0] = mi->max_tp_rate;
+			mrr_ndx[0] = mi->max_tp_rate[0];
 	} else {
-		mrr_ndx[0] = mi->max_tp_rate2;
+		mrr_ndx[0] = mi->max_tp_rate[1];
 	}
+
+	/* mrr setup for 3rd & 4th stage */
 	mrr_ndx[1] = mi->max_prob_rate;
 	mrr_ndx[2] = 0;
 	for (i = 1; i < 4; i++) {
···
 init_sample_table(struct minstrel_sta_info *mi)
 {
 	unsigned int i, col, new_idx;
-	unsigned int n_srates = mi->n_rates - 1;
 	u8 rnd[8];
 
 	mi->sample_column = 0;
-	mi->sample_idx = 0;
-	memset(mi->sample_table, 0, SAMPLE_COLUMNS * mi->n_rates);
+	mi->sample_row = 0;
+	memset(mi->sample_table, 0xff, SAMPLE_COLUMNS * mi->n_rates);
 
 	for (col = 0; col < SAMPLE_COLUMNS; col++) {
-		for (i = 0; i < n_srates; i++) {
+		for (i = 0; i < mi->n_rates; i++) {
 			get_random_bytes(rnd, sizeof(rnd));
-			new_idx = (i + rnd[i & 7]) % n_srates;
+			new_idx = (i + rnd[i & 7]) % mi->n_rates;
 
-			while (SAMPLE_TBL(mi, new_idx, col) != 0)
-				new_idx = (new_idx + 1) % n_srates;
+			while (SAMPLE_TBL(mi, new_idx, col) != 0xff)
+				new_idx = (new_idx + 1) % mi->n_rates;
 
-			/* Don't sample the slowest rate (i.e. slowest base
-			 * rate). We must presume that the slowest rate works
-			 * fine, or else other management frames will also be
-			 * failing and the link will break */
-			SAMPLE_TBL(mi, new_idx, col) = i + 1;
+			SAMPLE_TBL(mi, new_idx, col) = i;
 		}
 	}
 }
···
 	 * is much higher than with mrr */
 	mp->lookaround_rate = 5;
 	mp->lookaround_rate_mrr = 10;
-
-	/* moving average weight for EWMA */
-	mp->ewma_level = 75;
 
 	/* maximum time that the hw is allowed to stay in one MRR segment */
 	mp->segment_size = 6000;

net/mac80211/rc80211_minstrel.h

···
 #ifndef __RC_MINSTREL_H
 #define __RC_MINSTREL_H
 
+#define EWMA_LEVEL	75	/* ewma weighting factor [%] */
+#define SAMPLE_COLUMNS	10	/* number of columns in sample table */
+
+
+/* scaled fraction values */
+#define MINSTREL_SCALE  16
+#define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / div)
+#define MINSTREL_TRUNC(val) ((val) >> MINSTREL_SCALE)
+
+/* number of highest throughput rates to consider*/
+#define MAX_THR_RATES 4
+
+/*
+ * Perform EWMA (Exponentially Weighted Moving Average) calculation
+  */
+static inline int
+minstrel_ewma(int old, int new, int weight)
+{
+	return (new * (100 - weight) + old * weight) / 100;
+}
+
+
 struct minstrel_rate {
 	int bitrate;
 	int rix;
···
 	u32 attempts;
 	u32 last_attempts;
 	u32 last_success;
+	u8 sample_skipped;
 
 	/* parts per thousand */
 	u32 cur_prob;
···
 
 	unsigned int lowest_rix;
 
-	unsigned int max_tp_rate;
-	unsigned int max_tp_rate2;
-	unsigned int max_prob_rate;
+	u8 max_tp_rate[MAX_THR_RATES];
+	u8 max_prob_rate;
 	unsigned int packet_count;
 	unsigned int sample_count;
 	int sample_deferred;
 
-	unsigned int sample_idx;
+	unsigned int sample_row;
 	unsigned int sample_column;
 
 	int n_rates;
···
 	unsigned int cw_min;
 	unsigned int cw_max;
 	unsigned int max_retry;
-	unsigned int ewma_level;
 	unsigned int segment_size;
 	unsigned int update_interval;
 	unsigned int lookaround_rate;

net/mac80211/rc80211_minstrel_debugfs.c

···
 	for (i = 0; i < mi->n_rates; i++) {
 		struct minstrel_rate *mr = &mi->r[i];
 
-		*(p++) = (i == mi->max_tp_rate) ? 'T' : ' ';
-		*(p++) = (i == mi->max_tp_rate2) ? 't' : ' ';
+		*(p++) = (i == mi->max_tp_rate[0]) ? 'A' : ' ';
+		*(p++) = (i == mi->max_tp_rate[1]) ? 'B' : ' ';
+		*(p++) = (i == mi->max_tp_rate[2]) ? 'C' : ' ';
+		*(p++) = (i == mi->max_tp_rate[3]) ? 'D' : ' ';
 		*(p++) = (i == mi->max_prob_rate) ? 'P' : ' ';
 		p += sprintf(p, "%3u%s", mr->bitrate / 2,
 				(mr->bitrate & 1 ? ".5" : "  "));
 
-		tp = mr->cur_tp / ((18000 << 10) / 96);
-		prob = mr->cur_prob / 18;
-		eprob = mr->probability / 18;
+		tp = MINSTREL_TRUNC(mr->cur_tp / 10);
+		prob = MINSTREL_TRUNC(mr->cur_prob * 1000);
+		eprob = MINSTREL_TRUNC(mr->probability * 1000);
 
 		p += sprintf(p, "  %6u.%1u   %6u.%1u   %6u.%1u        "
 				"%3u(%3u)   %8llu    %8llu\n",

net/mac80211/rc80211_minstrel_ht.c

···
 #include "rc80211_minstrel_ht.h"
 
 #define AVG_PKT_SIZE	1200
-#define SAMPLE_COLUMNS	10
-#define EWMA_LEVEL		75
 
 /* Number of bits for an average sized packet */
 #define MCS_NBITS (AVG_PKT_SIZE << 3)
···
 /* Number of symbols for a packet with (bps) bits per symbol */
 #define MCS_NSYMS(bps) ((MCS_NBITS + (bps) - 1) / (bps))
 
-/* Transmission time for a packet containing (syms) symbols */
+/* Transmission time (nanoseconds) for a packet containing (syms) symbols */
 #define MCS_SYMBOL_TIME(sgi, syms)					\
 	(sgi ?								\
-	  ((syms) * 18 + 4) / 5 :	/* syms * 3.6 us */		\
-	  (syms) << 2			/* syms * 4 us */		\
+	  ((syms) * 18000 + 4000) / 5 :	/* syms * 3.6 us */		\
+	  ((syms) * 1000) << 2		/* syms * 4 us */		\
 	)
 
 /* Transmit duration for the raw data part of an average sized packet */
···
 }
 
 #define CCK_DURATION(_bitrate, _short, _len)		\
-	(10 /* SIFS */ +				\
+	(1000 * (10 /* SIFS */ +			\
 	 (_short ? 72 + 24 : 144 + 48 ) +		\
-	 (8 * (_len + 4) * 10) / (_bitrate))
+	 (8 * (_len + 4) * 10) / (_bitrate)))
 
 #define CCK_ACK_DURATION(_bitrate, _short)			\
 	(CCK_DURATION((_bitrate > 10 ? 20 : 10), false, 60) +	\
···
 #define MINSTREL_CCK_GROUP	(ARRAY_SIZE(minstrel_mcs_groups) - 1)
 
 static u8 sample_table[SAMPLE_COLUMNS][MCS_GROUP_RATES];
-
-/*
- * Perform EWMA (Exponentially Weighted Moving Average) calculation
- */
-static int
-minstrel_ewma(int old, int new, int weight)
-{
-	return (new * (100 - weight) + old * weight) / 100;
-}
 
 /*
  * Look up an MCS group index based on mac80211 rate information
···
 minstrel_ht_calc_tp(struct minstrel_ht_sta *mi, int group, int rate)
 {
 	struct minstrel_rate_stats *mr;
-	unsigned int usecs = 0;
+	unsigned int nsecs = 0;
+	unsigned int tp;
 
 	mr = &mi->groups[group].rates[rate];
 
···
 	}
 
 	if (group != MINSTREL_CCK_GROUP)
-		usecs = mi->overhead / MINSTREL_TRUNC(mi->avg_ampdu_len);
+		nsecs = 1000 * mi->overhead / MINSTREL_TRUNC(mi->avg_ampdu_len);
 
-	usecs += minstrel_mcs_groups[group].duration[rate];
-	mr->cur_tp = MINSTREL_TRUNC((1000000 / usecs) * mr->probability);
+	nsecs += minstrel_mcs_groups[group].duration[rate];
+	tp = 1000000 * ((mr->probability * 1000) / nsecs);
+
+	mr->cur_tp = MINSTREL_TRUNC(tp);
 }
 
 /*
···
 		}
 	}
 
-	/* try to sample up to half of the available rates during each interval */
-	mi->sample_count *= 4;
+	/* try to sample all available rates during each interval */
+	mi->sample_count *= 8;
 
 	cur_prob = 0;
 	cur_prob_tp = 0;
···
 		if (!mg->supported)
 			continue;
 
-		mr = minstrel_get_ratestats(mi, mg->max_prob_rate);
-		if (cur_prob_tp < mr->cur_tp &&
-		    minstrel_mcs_groups[group].streams == 1) {
-			mi->max_prob_rate = mg->max_prob_rate;
-			cur_prob = mr->cur_prob;
-			cur_prob_tp = mr->cur_tp;
-		}
-
 		mr = minstrel_get_ratestats(mi, mg->max_tp_rate);
 		if (cur_tp < mr->cur_tp) {
 			mi->max_tp_rate2 = mi->max_tp_rate;
 			cur_tp2 = cur_tp;
 			mi->max_tp_rate = mg->max_tp_rate;
 			cur_tp = mr->cur_tp;
+			mi->max_prob_streams = minstrel_mcs_groups[group].streams - 1;
 		}
 
 		mr = minstrel_get_ratestats(mi, mg->max_tp_rate2);
···
 			cur_tp2 = mr->cur_tp;
 		}
 	}
+
+	if (mi->max_prob_streams < 1)
+		mi->max_prob_streams = 1;
+
+	for (group = 0; group < ARRAY_SIZE(minstrel_mcs_groups); group++) {
+		mg = &mi->groups[group];
+		if (!mg->supported)
+			continue;
+		mr = minstrel_get_ratestats(mi, mg->max_prob_rate);
+		if (cur_prob_tp < mr->cur_tp &&
+		    minstrel_mcs_groups[group].streams <= mi->max_prob_streams) {
+			mi->max_prob_rate = mg->max_prob_rate;
+			cur_prob = mr->cur_prob;
+			cur_prob_tp = mr->cur_tp;
+		}
+	}
+
 
 	mi->stats_update = jiffies;
 }
···
 
 	if (!mi->sample_wait && !mi->sample_tries && mi->sample_count > 0) {
 		mi->sample_wait = 16 + 2 * MINSTREL_TRUNC(mi->avg_ampdu_len);
-		mi->sample_tries = 2;
+		mi->sample_tries = 1;
 		mi->sample_count--;
 	}
 
···
 	mr->retry_updated = true;
 
 	group = &minstrel_mcs_groups[index / MCS_GROUP_RATES];
-	tx_time_data = group->duration[index % MCS_GROUP_RATES] * ampdu_len;
+	tx_time_data = group->duration[index % MCS_GROUP_RATES] * ampdu_len / 1000;
 
 	/* Contention time for first 2 tries */
 	ctime = (t_slot * cw) >> 1;
···
 {
 	struct minstrel_rate_stats *mr;
 	struct minstrel_mcs_group_data *mg;
+	unsigned int sample_dur, sample_group;
 	int sample_idx = 0;
 
 	if (mi->sample_wait > 0) {
···
 	if (!mi->sample_tries)
 		return -1;
 
-	mi->sample_tries--;
 	mg = &mi->groups[mi->sample_group];
 	sample_idx = sample_table[mg->column][mg->index];
 	mr = &mg->rates[sample_idx];
-	sample_idx += mi->sample_group * MCS_GROUP_RATES;
+	sample_group = mi->sample_group;
+	sample_idx += sample_group * MCS_GROUP_RATES;
 	minstrel_next_sample_idx(mi);
 
 	/*
···
 	 * Make sure that lower rates get sampled only occasionally,
 	 * if the link is working perfectly.
 	 */
-	if (minstrel_get_duration(sample_idx) >
-	    minstrel_get_duration(mi->max_tp_rate)) {
+	sample_dur = minstrel_get_duration(sample_idx);
+	if (sample_dur >= minstrel_get_duration(mi->max_tp_rate2) &&
+	    (mi->max_prob_streams <
+	     minstrel_mcs_groups[sample_group].streams ||
+	     sample_dur >= minstrel_get_duration(mi->max_prob_rate))) {
 		if (mr->sample_skipped < 20)
 			return -1;
 
 		if (mi->sample_slow++ > 2)
 			return -1;
 	}
+	mi->sample_tries--;
 
 	return sample_idx;
 }

net/mac80211/rc80211_minstrel_ht.h

···
 #define MINSTREL_MAX_STREAMS	3
 #define MINSTREL_STREAM_GROUPS	4
 
-/* scaled fraction values */
-#define MINSTREL_SCALE	16
-#define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / div)
-#define MINSTREL_TRUNC(val) ((val) >> MINSTREL_SCALE)
-
 #define MCS_GROUP_RATES	8
 
 struct mcs_group {
···
 
 	/* best probability rate */
 	unsigned int max_prob_rate;
+	unsigned int max_prob_streams;
 
 	/* time of last status update */
 	unsigned long stats_update;

net/mac80211/rx.c

···
 	return RX_CONTINUE;
 }
 
-#define SEQ_MODULO 0x1000
-#define SEQ_MASK   0xfff
-
-static inline int seq_less(u16 sq1, u16 sq2)
-{
-	return ((sq1 - sq2) & SEQ_MASK) > (SEQ_MODULO >> 1);
-}
-
-static inline u16 seq_inc(u16 sq)
-{
-	return (sq + 1) & SEQ_MASK;
-}
-
-static inline u16 seq_sub(u16 sq1, u16 sq2)
-{
-	return (sq1 - sq2) & SEQ_MASK;
-}
-
 static void ieee80211_release_reorder_frame(struct ieee80211_sub_if_data *sdata,
 					    struct tid_ampdu_rx *tid_agg_rx,
 					    int index,
···
 	__skb_queue_tail(frames, skb);
 
 no_frame:
-	tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);
+	tid_agg_rx->head_seq_num = ieee80211_sn_inc(tid_agg_rx->head_seq_num);
 }
 
 static void ieee80211_release_reorder_frames(struct ieee80211_sub_if_data *sdata,
···
 
 	lockdep_assert_held(&tid_agg_rx->reorder_lock);
 
-	while (seq_less(tid_agg_rx->head_seq_num, head_seq_num)) {
-		index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn) %
+	while (ieee80211_sn_less(tid_agg_rx->head_seq_num, head_seq_num)) {
+		index = ieee80211_sn_sub(tid_agg_rx->head_seq_num,
+					 tid_agg_rx->ssn) %
 							tid_agg_rx->buf_size;
 		ieee80211_release_reorder_frame(sdata, tid_agg_rx, index,
 						frames);
···
 	lockdep_assert_held(&tid_agg_rx->reorder_lock);
 
 	/* release the buffer until next missing frame */
-	index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn) %
-						tid_agg_rx->buf_size;
+	index = ieee80211_sn_sub(tid_agg_rx->head_seq_num,
+				 tid_agg_rx->ssn) % tid_agg_rx->buf_size;
 	if (!tid_agg_rx->reorder_buf[index] &&
 	    tid_agg_rx->stored_mpdu_num) {
 		/*
···
 			 * Increment the head seq# also for the skipped slots.
 			 */
 			tid_agg_rx->head_seq_num =
-				(tid_agg_rx->head_seq_num + skipped) & SEQ_MASK;
+				(tid_agg_rx->head_seq_num +
+				 skipped) & IEEE80211_SN_MASK;
 			skipped = 0;
 		}
 	} else while (tid_agg_rx->reorder_buf[index]) {
 		ieee80211_release_reorder_frame(sdata, tid_agg_rx, index,
 						frames);
-		index =	seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn) %
+		index =	ieee80211_sn_sub(tid_agg_rx->head_seq_num,
+					 tid_agg_rx->ssn) %
 							tid_agg_rx->buf_size;
 	}
 
 	if (tid_agg_rx->stored_mpdu_num) {
-		j = index = seq_sub(tid_agg_rx->head_seq_num,
-				    tid_agg_rx->ssn) % tid_agg_rx->buf_size;
+		j = index = ieee80211_sn_sub(tid_agg_rx->head_seq_num,
+					     tid_agg_rx->ssn) %
+							tid_agg_rx->buf_size;
 
 		for (; j != (index - 1) % tid_agg_rx->buf_size;
 		     j = (j + 1) % tid_agg_rx->buf_size) {
···
 	head_seq_num = tid_agg_rx->head_seq_num;
 
 	/* frame with out of date sequence number */
-	if (seq_less(mpdu_seq_num, head_seq_num)) {
+	if (ieee80211_sn_less(mpdu_seq_num, head_seq_num)) {
 		dev_kfree_skb(skb);
 		goto out;
 	}
···
 	 * If frame the sequence number exceeds our buffering window
 	 * size release some previous frames to make room for this one.
 	 */
-	if (!seq_less(mpdu_seq_num, head_seq_num + buf_size)) {
-		head_seq_num = seq_inc(seq_sub(mpdu_seq_num, buf_size));
+	if (!ieee80211_sn_less(mpdu_seq_num, head_seq_num + buf_size)) {
+		head_seq_num = ieee80211_sn_inc(
+				ieee80211_sn_sub(mpdu_seq_num, buf_size));
 		/* release stored frames up to new head to stack */
 		ieee80211_release_reorder_frames(sdata, tid_agg_rx,
 						 head_seq_num, frames);
···
 
 	/* Now the new frame is always in the range of the reordering buffer */
 
-	index = seq_sub(mpdu_seq_num, tid_agg_rx->ssn) % tid_agg_rx->buf_size;
+	index = ieee80211_sn_sub(mpdu_seq_num,
+				 tid_agg_rx->ssn) % tid_agg_rx->buf_size;
 
 	/* check if we already stored this frame */
 	if (tid_agg_rx->reorder_buf[index]) {
···
 	 */
 	if (mpdu_seq_num == tid_agg_rx->head_seq_num &&
 	    tid_agg_rx->stored_mpdu_num == 0) {
-		tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);
+		tid_agg_rx->head_seq_num =
+			ieee80211_sn_inc(tid_agg_rx->head_seq_num);
 		ret = false;
 		goto out;
 	}
···
 		 * 'align' will only take the values 0 or 2 here
 		 * since all frames are required to be aligned
 		 * to 2-byte boundaries when being passed to
-		 * mac80211. That also explains the __skb_push()
-		 * below.
+		 * mac80211; the code here works just as well if
+		 * that isn't true, but mac80211 assumes it can
+		 * access fields as 2-byte aligned (e.g. for
+		 * compare_ether_addr)
 		 */
 		align = ((unsigned long)(skb->data + sizeof(struct ethhdr))) & 3;
 		if (align) {
···
 		case WLAN_SP_MESH_PEERING_CONFIRM:
 			if (!ieee80211_vif_is_mesh(&sdata->vif))
 				goto invalid;
-			if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
+			if (sdata->u.mesh.user_mpm)
 				/* userspace handles this frame */
 				break;
 			goto queue;

net/mac80211/sta_info.c

···
 	INIT_WORK(&sta->drv_unblock_wk, sta_unblock);
 	INIT_WORK(&sta->ampdu_mlme.work, ieee80211_ba_session_work);
 	mutex_init(&sta->ampdu_mlme.mtx);
+#ifdef CONFIG_MAC80211_MESH
+	if (ieee80211_vif_is_mesh(&sdata->vif) &&
+	    !sdata->u.mesh.user_mpm)
+		init_timer(&sta->plink_timer);
+#endif
 
 	memcpy(sta->sta.addr, addr, ETH_ALEN);
 	sta->local = local;
···
 
 	mutex_lock(&local->key_mtx);
 	for (i = 0; i < NUM_DEFAULT_KEYS; i++)
-		__ieee80211_key_free(key_mtx_dereference(local, sta->gtk[i]));
+		__ieee80211_key_free(key_mtx_dereference(local, sta->gtk[i]),
+				     true);
 	if (sta->ptk)
-		__ieee80211_key_free(key_mtx_dereference(local, sta->ptk));
+		__ieee80211_key_free(key_mtx_dereference(local, sta->ptk),
+				     true);
 	mutex_unlock(&local->key_mtx);
 
 	sta->dead = true;

net/mac80211/sta_info.h

···
  * @plink_state: peer link state
  * @plink_timeout: timeout of peer link
  * @plink_timer: peer link watch timer
- * @plink_timer_was_running: used by suspend/resume to restore timers
  * @t_offset: timing offset relative to this host
  * @t_offset_setpoint: reference timing offset of this sta to be used when
  * 	calculating clockdrift
···
 	__le16 reason;
 	u8 plink_retries;
 	bool ignore_plink_timer;
-	bool plink_timer_was_running;
 	enum nl80211_plink_state plink_state;
 	u32 plink_timeout;
 	struct timer_list plink_timer;

net/mac80211/trace.h

···
 	TP_PROTO(struct ieee80211_local *local,
 		 struct ieee80211_sub_if_data *sdata,
 		 struct ieee80211_channel *chan,
-		 unsigned int duration),
+		 unsigned int duration,
+		 enum ieee80211_roc_type type),
 
-	TP_ARGS(local, sdata, chan, duration),
+	TP_ARGS(local, sdata, chan, duration, type),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
 		VIF_ENTRY
 		__field(int, center_freq)
 		__field(unsigned int, duration)
+		__field(u32, type)
 	),
 
 	TP_fast_assign(
···
 		VIF_ASSIGN;
 		__entry->center_freq = chan->center_freq;
 		__entry->duration = duration;
+		__entry->type = type;
 	),
 
 	TP_printk(
-		LOCAL_PR_FMT  VIF_PR_FMT " freq:%dMHz duration:%dms",
+		LOCAL_PR_FMT  VIF_PR_FMT " freq:%dMHz duration:%dms type=%d",
 		LOCAL_PR_ARG, VIF_PR_ARG,
-		__entry->center_freq, __entry->duration
+		__entry->center_freq, __entry->duration, __entry->type
 	)
 );
 

net/mac80211/tx.c

···
 		if (local->queue_stop_reasons[q] ||
 		    (!txpending && !skb_queue_empty(&local->pending[q]))) {
 			if (unlikely(info->flags &
-					IEEE80211_TX_INTFL_OFFCHAN_TX_OK &&
-				     local->queue_stop_reasons[q] &
-					~BIT(IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL))) {
+				     IEEE80211_TX_INTFL_OFFCHAN_TX_OK)) {
+				if (local->queue_stop_reasons[q] &
+				    ~BIT(IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL)) {
+					/*
+					 * Drop off-channel frames if queues
+					 * are stopped for any reason other
+					 * than off-channel operation. Never
+					 * queue them.
+					 */
+					spin_unlock_irqrestore(
+						&local->queue_stop_reason_lock,
+						flags);
+					ieee80211_purge_tx_queue(&local->hw,
+								 skbs);
+					return true;
+				}
+			} else {
+
 				/*
-				 * Drop off-channel frames if queues are stopped
-				 * for any reason other than off-channel
-				 * operation. Never queue them.
+				 * Since queue is stopped, queue up frames for
+				 * later transmission from the tx-pending
+				 * tasklet when the queue is woken again.
 				 */
-				spin_unlock_irqrestore(
-					&local->queue_stop_reason_lock, flags);
-				ieee80211_purge_tx_queue(&local->hw, skbs);
-				return true;
+				if (txpending)
+					skb_queue_splice_init(skbs,
+							      &local->pending[q]);
+				else
+					skb_queue_splice_tail_init(skbs,
+								   &local->pending[q]);
+
+				spin_unlock_irqrestore(&local->queue_stop_reason_lock,
+						       flags);
+				return false;
 			}
-
-			/*
-			 * Since queue is stopped, queue up frames for later
-			 * transmission from the tx-pending tasklet when the
-			 * queue is woken again.
-			 */
-			if (txpending)
-				skb_queue_splice_init(skbs, &local->pending[q]);
-			else
-				skb_queue_splice_tail_init(skbs,
-							   &local->pending[q]);
-
-			spin_unlock_irqrestore(&local->queue_stop_reason_lock,
-					       flags);
-			return false;
 		}
 		spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 
···
 		}
 
 		if (!is_multicast_ether_addr(skb->data)) {
+			struct sta_info *next_hop;
+			bool mpp_lookup = true;
+
 			mpath = mesh_path_lookup(sdata, skb->data);
-			if (!mpath)
+			if (mpath) {
+				mpp_lookup = false;
+				next_hop = rcu_dereference(mpath->next_hop);
+				if (!next_hop ||
+				    !(mpath->flags & (MESH_PATH_ACTIVE |
+						      MESH_PATH_RESOLVING)))
+					mpp_lookup = true;
+			}
+
+			if (mpp_lookup)
 				mppath = mpp_path_lookup(sdata, skb->data);
+
+			if (mppath && mpath)
+				mesh_path_del(mpath->sdata, mpath->dst);
 		}
 
 		/*
···
 	if (local->tim_in_locked_section) {
 		__ieee80211_beacon_add_tim(sdata, ps, skb);
 	} else {
-		spin_lock(&local->tim_lock);
+		spin_lock_bh(&local->tim_lock);
 		__ieee80211_beacon_add_tim(sdata, ps, skb);
-		spin_unlock(&local->tim_lock);
+		spin_unlock_bh(&local->tim_lock);
 	}
 
 	return 0;
···
 				cpu_to_le16(IEEE80211_FCTL_MOREDATA);
 		}
 
-		sdata = IEEE80211_DEV_TO_SUB_IF(skb->dev);
+		if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+			sdata = IEEE80211_DEV_TO_SUB_IF(skb->dev);
 		if (!ieee80211_tx_prepare(sdata, &tx, skb))
 			break;
 		dev_kfree_skb_any(skb);

net/mac80211/util.c

···
 	drv_stop(local);
 }
 
+static void ieee80211_assign_chanctx(struct ieee80211_local *local,
+				     struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_chanctx_conf *conf;
+	struct ieee80211_chanctx *ctx;
+
+	if (!local->use_chanctx)
+		return;
+
+	mutex_lock(&local->chanctx_mtx);
+	conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
+					 lockdep_is_held(&local->chanctx_mtx));
+	if (conf) {
+		ctx = container_of(conf, struct ieee80211_chanctx, conf);
+		drv_assign_vif_chanctx(local, sdata, ctx);
+	}
+	mutex_unlock(&local->chanctx_mtx);
+}
+
 int ieee80211_reconfig(struct ieee80211_local *local)
 {
 	struct ieee80211_hw *hw = &local->hw;
···
 	}
 
 	list_for_each_entry(sdata, &local->interfaces, list) {
-		struct ieee80211_chanctx_conf *ctx_conf;
-
 		if (!ieee80211_sdata_running(sdata))
 			continue;
-
-		mutex_lock(&local->chanctx_mtx);
-		ctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
-				lockdep_is_held(&local->chanctx_mtx));
-		if (ctx_conf) {
-			ctx = container_of(ctx_conf, struct ieee80211_chanctx,
-					   conf);
-			drv_assign_vif_chanctx(local, sdata, ctx);
-		}
-		mutex_unlock(&local->chanctx_mtx);
+		ieee80211_assign_chanctx(local, sdata);
 	}
 
 	sdata = rtnl_dereference(local->monitor_sdata);
-	if (sdata && local->use_chanctx && ieee80211_sdata_running(sdata)) {
-		struct ieee80211_chanctx_conf *ctx_conf;
-
-		mutex_lock(&local->chanctx_mtx);
-		ctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
-				lockdep_is_held(&local->chanctx_mtx));
-		if (ctx_conf) {
-			ctx = container_of(ctx_conf, struct ieee80211_chanctx,
-					   conf);
-			drv_assign_vif_chanctx(local, sdata, ctx);
-		}
-		mutex_unlock(&local->chanctx_mtx);
-	}
+	if (sdata && ieee80211_sdata_running(sdata))
+		ieee80211_assign_chanctx(local, sdata);
 
 	/* add STAs back */
 	mutex_lock(&local->sta_mtx);
···
 			  BSS_CHANGED_QOS |
 			  BSS_CHANGED_IDLE |
 			  BSS_CHANGED_TXPOWER;
-
-#ifdef CONFIG_PM
-		if (local->resuming && !reconfig_due_to_wowlan)
-			sdata->vif.bss_conf = sdata->suspend_bss_conf;
-#endif
 
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_STATION:
···
 	mb();
 	local->resuming = false;
 
-	list_for_each_entry(sdata, &local->interfaces, list) {
-		switch(sdata->vif.type) {
-		case NL80211_IFTYPE_STATION:
-			ieee80211_sta_restart(sdata);
-			break;
-		case NL80211_IFTYPE_ADHOC:
-			ieee80211_ibss_restart(sdata);
-			break;
-		case NL80211_IFTYPE_MESH_POINT:
-			ieee80211_mesh_restart(sdata);
-			break;
-		default:
-			break;
-		}
-	}
-
 	mod_timer(&local->sta_cleanup, jiffies + 1);
-
-	mutex_lock(&local->sta_mtx);
-	list_for_each_entry(sta, &local->sta_list, list)
-		mesh_plink_restart(sta);
-	mutex_unlock(&local->sta_mtx);
 #else
 	WARN_ON(1);
 #endif

net/mac80211/vht.c

···
 #include "rate.h"
 
 
+static void __check_vhtcap_disable(struct ieee80211_sub_if_data *sdata,
+				   struct ieee80211_sta_vht_cap *vht_cap,
+				   u32 flag)
+{
+	__le32 le_flag = cpu_to_le32(flag);
+
+	if (sdata->u.mgd.vht_capa_mask.vht_cap_info & le_flag &&
+	    !(sdata->u.mgd.vht_capa.vht_cap_info & le_flag))
+		vht_cap->cap &= ~flag;
+}
+
+void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
+				      struct ieee80211_sta_vht_cap *vht_cap)
+{
+	int i;
+	u16 rxmcs_mask, rxmcs_cap, rxmcs_n, txmcs_mask, txmcs_cap, txmcs_n;
+
+	if (!vht_cap->vht_supported)
+		return;
+
+	if (sdata->vif.type != NL80211_IFTYPE_STATION)
+		return;
+
+	__check_vhtcap_disable(sdata, vht_cap,
+			       IEEE80211_VHT_CAP_RXLDPC);
+	__check_vhtcap_disable(sdata, vht_cap,
+			       IEEE80211_VHT_CAP_SHORT_GI_80);
+	__check_vhtcap_disable(sdata, vht_cap,
+			       IEEE80211_VHT_CAP_SHORT_GI_160);
+	__check_vhtcap_disable(sdata, vht_cap,
+			       IEEE80211_VHT_CAP_TXSTBC);
+	__check_vhtcap_disable(sdata, vht_cap,
+			       IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE);
+	__check_vhtcap_disable(sdata, vht_cap,
+			       IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE);
+	__check_vhtcap_disable(sdata, vht_cap,
+			       IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN);
+	__check_vhtcap_disable(sdata, vht_cap,
+			       IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN);
+
+	/* Allow user to decrease AMPDU length exponent */
+	if (sdata->u.mgd.vht_capa_mask.vht_cap_info &
+	    cpu_to_le32(IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK)) {
+		u32 cap, n;
+
+		n = le32_to_cpu(sdata->u.mgd.vht_capa.vht_cap_info) &
+			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
+		n >>= IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
+		cap = vht_cap->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
+		cap >>= IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
+
+		if (n < cap) {
+			vht_cap->cap &=
+				~IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
+			vht_cap->cap |=
+				n << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
+		}
+	}
+
+	/* Allow the user to decrease MCSes */
+	rxmcs_mask =
+		le16_to_cpu(sdata->u.mgd.vht_capa_mask.supp_mcs.rx_mcs_map);
+	rxmcs_n = le16_to_cpu(sdata->u.mgd.vht_capa.supp_mcs.rx_mcs_map);
+	rxmcs_n &= rxmcs_mask;
+	rxmcs_cap = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map);
+
+	txmcs_mask =
+		le16_to_cpu(sdata->u.mgd.vht_capa_mask.supp_mcs.tx_mcs_map);
+	txmcs_n = le16_to_cpu(sdata->u.mgd.vht_capa.supp_mcs.tx_mcs_map);
+	txmcs_n &= txmcs_mask;
+	txmcs_cap = le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map);
+	for (i = 0; i < 8; i++) {
+		u8 m, n, c;
+
+		m = (rxmcs_mask >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED;
+		n = (rxmcs_n >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED;
+		c = (rxmcs_cap >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED;
+
+		if (m && ((c != IEEE80211_VHT_MCS_NOT_SUPPORTED && n < c) ||
+			  n == IEEE80211_VHT_MCS_NOT_SUPPORTED)) {
+			rxmcs_cap &= ~(3 << 2*i);
+			rxmcs_cap |= (rxmcs_n & (3 << 2*i));
+		}
+
+		m = (txmcs_mask >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED;
+		n = (txmcs_n >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED;
+		c = (txmcs_cap >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED;
+
+		if (m && ((c != IEEE80211_VHT_MCS_NOT_SUPPORTED && n < c) ||
+			  n == IEEE80211_VHT_MCS_NOT_SUPPORTED)) {
+			txmcs_cap &= ~(3 << 2*i);
+			txmcs_cap |= (txmcs_n & (3 << 2*i));
+		}
+	}
+	vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(rxmcs_cap);
+	vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(txmcs_cap);
+}
+
 void
 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_supported_band *sband,
···
 				    struct sta_info *sta)
 {
 	struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap;
+	struct ieee80211_sta_vht_cap own_cap;
+	u32 cap_info, i;
 
 	memset(vht_cap, 0, sizeof(*vht_cap));
 
···
 
 	vht_cap->vht_supported = true;
 
-	vht_cap->cap = le32_to_cpu(vht_cap_ie->vht_cap_info);
+	own_cap = sband->vht_cap;
+	/*
+	 * If user has specified capability overrides, take care
+	 * of that if the station we're setting up is the AP that
+	 * we advertised a restricted capability set to. Override
+	 * our own capabilities and then use those below.
+	 */
+	if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+	    !test_sta_flag(sta, WLAN_STA_TDLS_PEER))
+		ieee80211_apply_vhtcap_overrides(sdata, &own_cap);
+
+	/* take some capabilities as-is */
+	cap_info = le32_to_cpu(vht_cap_ie->vht_cap_info);
+	vht_cap->cap = cap_info;
+	vht_cap->cap &= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
+			IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
+			IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
+			IEEE80211_VHT_CAP_RXLDPC |
+			IEEE80211_VHT_CAP_VHT_TXOP_PS |
+			IEEE80211_VHT_CAP_HTC_VHT |
+			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
+			IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB |
+			IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB |
+			IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
+			IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN;
+
+	/* and some based on our own capabilities */
+	switch (own_cap.cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
+	case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
+		vht_cap->cap |= cap_info &
+				IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
+		break;
+	case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
+		vht_cap->cap |= cap_info &
+				IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK;
+		break;
+	default:
+		/* nothing */
+		break;
+	}
+
+	/* symmetric capabilities */
+	vht_cap->cap |= cap_info & own_cap.cap &
+			(IEEE80211_VHT_CAP_SHORT_GI_80 |
+			 IEEE80211_VHT_CAP_SHORT_GI_160);
+
+	/* remaining ones */
+	if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE) {
+		vht_cap->cap |= cap_info &
+				(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
+				 IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX |
+				 IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX);
+	}
+
+	if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
+		vht_cap->cap |= cap_info &
+				IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE;
+
+	if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
+		vht_cap->cap |= cap_info &
+				IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE;
+
+	if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
+		vht_cap->cap |= cap_info &
+				IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE;
+
+	if (own_cap.cap & IEEE80211_VHT_CAP_TXSTBC)
+		vht_cap->cap |= cap_info & IEEE80211_VHT_CAP_RXSTBC_MASK;
+
+	if (own_cap.cap & IEEE80211_VHT_CAP_RXSTBC_MASK)
+		vht_cap->cap |= cap_info & IEEE80211_VHT_CAP_TXSTBC;
 
 	/* Copy peer MCS info, the driver might need them. */
 	memcpy(&vht_cap->vht_mcs, &vht_cap_ie->supp_mcs,
 	       sizeof(struct ieee80211_vht_mcs_info));
 
+	/* but also restrict MCSes */
+	for (i = 0; i < 8; i++) {
+		u16 own_rx, own_tx, peer_rx, peer_tx;
+
+		own_rx = le16_to_cpu(own_cap.vht_mcs.rx_mcs_map);
+		own_rx = (own_rx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED;
+
+		own_tx = le16_to_cpu(own_cap.vht_mcs.tx_mcs_map);
+		own_tx = (own_tx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED;
+
+		peer_rx = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map);
+		peer_rx = (peer_rx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED;
+
+		peer_tx = le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map);
+		peer_tx = (peer_tx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED;
+
+		if (peer_tx != IEEE80211_VHT_MCS_NOT_SUPPORTED) {
+			if (own_rx == IEEE80211_VHT_MCS_NOT_SUPPORTED)
+				peer_tx = IEEE80211_VHT_MCS_NOT_SUPPORTED;
+			else if (own_rx < peer_tx)
+				peer_tx = own_rx;
+		}
+
+		if (peer_rx != IEEE80211_VHT_MCS_NOT_SUPPORTED) {
+			if (own_tx == IEEE80211_VHT_MCS_NOT_SUPPORTED)
+				peer_rx = IEEE80211_VHT_MCS_NOT_SUPPORTED;
+			else if (own_tx < peer_rx)
+				peer_rx = own_tx;
+		}
+
+		vht_cap->vht_mcs.rx_mcs_map &=
+			~cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << i * 2);
+		vht_cap->vht_mcs.rx_mcs_map |= cpu_to_le16(peer_rx << i * 2);
+
+		vht_cap->vht_mcs.tx_mcs_map &=
+			~cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << i * 2);
+		vht_cap->vht_mcs.tx_mcs_map |= cpu_to_le16(peer_tx << i * 2);
+	}
+
+	/* finally set up the bandwidth */
 	switch (vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
 	case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
 	case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:

net/rfkill/rfkill-regulator.c

···
 	return 0;
 }
 
-struct rfkill_ops rfkill_regulator_ops = {
+static struct rfkill_ops rfkill_regulator_ops = {
 	.set_block = rfkill_regulator_set_block,
 };
 

net/wireless/ap.c

···
 
 	return err;
 }
-
-void cfg80211_ch_switch_notify(struct net_device *dev,
-			       struct cfg80211_chan_def *chandef)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_ch_switch_notify(dev, chandef);
-
-	wdev_lock(wdev);
-
-	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
-		    wdev->iftype != NL80211_IFTYPE_P2P_GO))
-		goto out;
-
-	wdev->channel = chandef->chan;
-	nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
-out:
-	wdev_unlock(wdev);
-	return;
-}
-EXPORT_SYMBOL(cfg80211_ch_switch_notify);
-
-bool cfg80211_rx_spurious_frame(struct net_device *dev,
-				const u8 *addr, gfp_t gfp)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	bool ret;
-
-	trace_cfg80211_rx_spurious_frame(dev, addr);
-
-	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
-		    wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
-		trace_cfg80211_return_bool(false);
-		return false;
-	}
-	ret = nl80211_unexpected_frame(dev, addr, gfp);
-	trace_cfg80211_return_bool(ret);
-	return ret;
-}
-EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
-
-bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
-					const u8 *addr, gfp_t gfp)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	bool ret;
-
-	trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
-
-	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
-		    wdev->iftype != NL80211_IFTYPE_P2P_GO &&
-		    wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
-		trace_cfg80211_return_bool(false);
-		return false;
-	}
-	ret = nl80211_unexpected_4addr_frame(dev, addr, gfp);
-	trace_cfg80211_return_bool(ret);
-	return ret;
-}
-EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);

net/wireless/core.c

···
 	rdev->wiphy.rts_threshold = (u32) -1;
 	rdev->wiphy.coverage_class = 0;
 
-	rdev->wiphy.features = NL80211_FEATURE_SCAN_FLUSH |
-			       NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
+	rdev->wiphy.features = NL80211_FEATURE_SCAN_FLUSH;
 
 	return &rdev->wiphy;
 }
···
 		rdev->num_running_monitor_ifaces += num;
 }
 
+void cfg80211_leave(struct cfg80211_registered_device *rdev,
+		   struct wireless_dev *wdev)
+{
+	struct net_device *dev = wdev->netdev;
+
+	switch (wdev->iftype) {
+	case NL80211_IFTYPE_ADHOC:
+		cfg80211_leave_ibss(rdev, dev, true);
+		break;
+	case NL80211_IFTYPE_P2P_CLIENT:
+	case NL80211_IFTYPE_STATION:
+		mutex_lock(&rdev->sched_scan_mtx);
+		__cfg80211_stop_sched_scan(rdev, false);
+		mutex_unlock(&rdev->sched_scan_mtx);
+
+		wdev_lock(wdev);
+#ifdef CONFIG_CFG80211_WEXT
+		kfree(wdev->wext.ie);
+		wdev->wext.ie = NULL;
+		wdev->wext.ie_len = 0;
+		wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
+#endif
+		__cfg80211_disconnect(rdev, dev,
+				      WLAN_REASON_DEAUTH_LEAVING, true);
+		cfg80211_mlme_down(rdev, dev);
+		wdev_unlock(wdev);
+		break;
+	case NL80211_IFTYPE_MESH_POINT:
+		cfg80211_leave_mesh(rdev, dev);
+		break;
+	case NL80211_IFTYPE_AP:
+		cfg80211_stop_ap(rdev, dev);
+		break;
+	default:
+		break;
+	}
+
+	wdev->beacon_interval = 0;
+}
+
 static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
 					 unsigned long state,
 					 void *ndev)
···
 			dev->priv_flags |= IFF_DONT_BRIDGE;
 		break;
 	case NETDEV_GOING_DOWN:
-		switch (wdev->iftype) {
-		case NL80211_IFTYPE_ADHOC:
-			cfg80211_leave_ibss(rdev, dev, true);
-			break;
-		case NL80211_IFTYPE_P2P_CLIENT:
-		case NL80211_IFTYPE_STATION:
-			mutex_lock(&rdev->sched_scan_mtx);
-			__cfg80211_stop_sched_scan(rdev, false);
-			mutex_unlock(&rdev->sched_scan_mtx);
-
-			wdev_lock(wdev);
-#ifdef CONFIG_CFG80211_WEXT
-			kfree(wdev->wext.ie);
-			wdev->wext.ie = NULL;
-			wdev->wext.ie_len = 0;
-			wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
-#endif
-			__cfg80211_disconnect(rdev, dev,
-					      WLAN_REASON_DEAUTH_LEAVING, true);
-			cfg80211_mlme_down(rdev, dev);
-			wdev_unlock(wdev);
-			break;
-		case NL80211_IFTYPE_MESH_POINT:
-			cfg80211_leave_mesh(rdev, dev);
-			break;
-		case NL80211_IFTYPE_AP:
-			cfg80211_stop_ap(rdev, dev);
-			break;
-		default:
-			break;
-		}
-		wdev->beacon_interval = 0;
+		cfg80211_leave(rdev, wdev);
 		break;
 	case NETDEV_DOWN:
 		cfg80211_update_iface_num(rdev, wdev->iftype, -1);

net/wireless/core.h

···
 int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 			  struct net_device *dev,
 			  struct ieee80211_channel *chan,
-			  const u8 *bssid, const u8 *prev_bssid,
+			  const u8 *bssid,
 			  const u8 *ssid, int ssid_len,
-			  const u8 *ie, int ie_len, bool use_mfp,
-			  struct cfg80211_crypto_settings *crypt,
-			  u32 assoc_flags, struct ieee80211_ht_cap *ht_capa,
-			  struct ieee80211_ht_cap *ht_capa_mask);
+			  struct cfg80211_assoc_request *req);
 int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
-			struct net_device *dev, struct ieee80211_channel *chan,
-			const u8 *bssid, const u8 *prev_bssid,
+			struct net_device *dev,
+			struct ieee80211_channel *chan,
+			const u8 *bssid,
 			const u8 *ssid, int ssid_len,
-			const u8 *ie, int ie_len, bool use_mfp,
-			struct cfg80211_crypto_settings *crypt,
-			u32 assoc_flags, struct ieee80211_ht_cap *ht_capa,
-			struct ieee80211_ht_cap *ht_capa_mask);
+			struct cfg80211_assoc_request *req);
 int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
 			   struct net_device *dev, const u8 *bssid,
 			   const u8 *ie, int ie_len, u16 reason,
···
 			  bool no_cck, bool dont_wait_for_ack, u64 *cookie);
 void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
 			       const struct ieee80211_ht_cap *ht_capa_mask);
+void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
+				const struct ieee80211_vht_cap *vht_capa_mask);
 
 /* SME */
 int __cfg80211_connect(struct cfg80211_registered_device *rdev,
···
 
 void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
 			       enum nl80211_iftype iftype, int num);
+
+void cfg80211_leave(struct cfg80211_registered_device *rdev,
+		    struct wireless_dev *wdev);
 
 #define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10
 

net/wireless/mesh.c

···
 	.ie = NULL,
 	.ie_len = 0,
 	.is_secure = false,
+	.user_mpm = false,
 	.beacon_interval = MESH_DEFAULT_BEACON_INTERVAL,
 	.dtim_period = MESH_DEFAULT_DTIM_PERIOD,
 };
···
 	wdev->preset_chandef = *chandef;
 	return 0;
 }
-
-void cfg80211_notify_new_peer_candidate(struct net_device *dev,
-		const u8 *macaddr, const u8* ie, u8 ie_len, gfp_t gfp)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-
-	trace_cfg80211_notify_new_peer_candidate(dev, macaddr);
-	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
-		return;
-
-	nl80211_send_new_peer_candidate(wiphy_to_dev(wdev->wiphy), dev,
-			macaddr, ie, ie_len, gfp);
-}
-EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
 
 static int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
 				 struct net_device *dev)

net/wireless/mlme.c

···
 }
 EXPORT_SYMBOL(cfg80211_send_disassoc);
 
-void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
-				 size_t len)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_send_unprot_deauth(dev);
-	nl80211_send_unprot_deauth(rdev, dev, buf, len, GFP_ATOMIC);
-}
-EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
-
-void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
-				   size_t len)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_send_unprot_disassoc(dev);
-	nl80211_send_unprot_disassoc(rdev, dev, buf, len, GFP_ATOMIC);
-}
-EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
-
 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
···
 		p1[i] &= p2[i];
 }
 
+/*  Do a logical ht_capa &= ht_capa_mask.  */
+void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
+				const struct ieee80211_vht_cap *vht_capa_mask)
+{
+	int i;
+	u8 *p1, *p2;
+	if (!vht_capa_mask) {
+		memset(vht_capa, 0, sizeof(*vht_capa));
+		return;
+	}
+
+	p1 = (u8*)(vht_capa);
+	p2 = (u8*)(vht_capa_mask);
+	for (i = 0; i < sizeof(*vht_capa); i++)
+		p1[i] &= p2[i];
+}
+
 int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 			  struct net_device *dev,
 			  struct ieee80211_channel *chan,
-			  const u8 *bssid, const u8 *prev_bssid,
+			  const u8 *bssid,
 			  const u8 *ssid, int ssid_len,
-			  const u8 *ie, int ie_len, bool use_mfp,
-			  struct cfg80211_crypto_settings *crypt,
-			  u32 assoc_flags, struct ieee80211_ht_cap *ht_capa,
-			  struct ieee80211_ht_cap *ht_capa_mask)
+			  struct cfg80211_assoc_request *req)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct cfg80211_assoc_request req;
 	int err;
 	bool was_connected = false;
 
 	ASSERT_WDEV_LOCK(wdev);
 
-	memset(&req, 0, sizeof(req));
-
-	if (wdev->current_bss && prev_bssid &&
-	    ether_addr_equal(wdev->current_bss->pub.bssid, prev_bssid)) {
+	if (wdev->current_bss && req->prev_bssid &&
+	    ether_addr_equal(wdev->current_bss->pub.bssid, req->prev_bssid)) {
 		/*
 		 * Trying to reassociate: Allow this to proceed and let the old
 		 * association to be dropped when the new one is completed.
···
 	} else if (wdev->current_bss)
 		return -EALREADY;
 
-	req.ie = ie;
-	req.ie_len = ie_len;
-	memcpy(&req.crypto, crypt, sizeof(req.crypto));
-	req.use_mfp = use_mfp;
-	req.prev_bssid = prev_bssid;
-	req.flags = assoc_flags;
-	if (ht_capa)
-		memcpy(&req.ht_capa, ht_capa, sizeof(req.ht_capa));
-	if (ht_capa_mask)
-		memcpy(&req.ht_capa_mask, ht_capa_mask,
-		       sizeof(req.ht_capa_mask));
-	cfg80211_oper_and_ht_capa(&req.ht_capa_mask,
+	cfg80211_oper_and_ht_capa(&req->ht_capa_mask,
 				  rdev->wiphy.ht_capa_mod_mask);
+	cfg80211_oper_and_vht_capa(&req->vht_capa_mask,
+				   rdev->wiphy.vht_capa_mod_mask);
 
-	req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
-				   WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
-	if (!req.bss) {
+	req->bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
+				    WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
+	if (!req->bss) {
 		if (was_connected)
 			wdev->sme_state = CFG80211_SME_CONNECTED;
 		return -ENOENT;
 	}
 
-	err = cfg80211_can_use_chan(rdev, wdev, req.bss->channel,
-				    CHAN_MODE_SHARED);
+	err = cfg80211_can_use_chan(rdev, wdev, chan, CHAN_MODE_SHARED);
 	if (err)
 		goto out;
 
-	err = rdev_assoc(rdev, dev, &req);
+	err = rdev_assoc(rdev, dev, req);
 
 out:
 	if (err) {
 		if (was_connected)
 			wdev->sme_state = CFG80211_SME_CONNECTED;
-		cfg80211_put_bss(&rdev->wiphy, req.bss);
+		cfg80211_put_bss(&rdev->wiphy, req->bss);
 	}
 
 	return err;
···
 int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 			struct net_device *dev,
 			struct ieee80211_channel *chan,
-			const u8 *bssid, const u8 *prev_bssid,
+			const u8 *bssid,
 			const u8 *ssid, int ssid_len,
-			const u8 *ie, int ie_len, bool use_mfp,
-			struct cfg80211_crypto_settings *crypt,
-			u32 assoc_flags, struct ieee80211_ht_cap *ht_capa,
-			struct ieee80211_ht_cap *ht_capa_mask)
+			struct cfg80211_assoc_request *req)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	int err;
 
 	mutex_lock(&rdev->devlist_mtx);
 	wdev_lock(wdev);
-	err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
-				    ssid, ssid_len, ie, ie_len, use_mfp, crypt,
-				    assoc_flags, ht_capa, ht_capa_mask);
+	err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid,
+				    ssid, ssid_len, req);
 	wdev_unlock(wdev);
 	mutex_unlock(&rdev->devlist_mtx);
 
···
 		wdev->current_bss = NULL;
 	}
 }
-
-void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
-			       struct ieee80211_channel *chan,
-			       unsigned int duration, gfp_t gfp)
-{
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
-	nl80211_send_remain_on_channel(rdev, wdev, cookie, chan, duration, gfp);
-}
-EXPORT_SYMBOL(cfg80211_ready_on_channel);
-
-void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
-					struct ieee80211_channel *chan,
-					gfp_t gfp)
-{
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
-	nl80211_send_remain_on_channel_cancel(rdev, wdev, cookie, chan, gfp);
-}
-EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
-
-void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
-		      struct station_info *sinfo, gfp_t gfp)
-{
-	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_new_sta(dev, mac_addr, sinfo);
-	nl80211_send_sta_event(rdev, dev, mac_addr, sinfo, gfp);
-}
-EXPORT_SYMBOL(cfg80211_new_sta);
-
-void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
-{
-	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_del_sta(dev, mac_addr);
-	nl80211_send_sta_del_event(rdev, dev, mac_addr, gfp);
-}
-EXPORT_SYMBOL(cfg80211_del_sta);
-
-void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
-			  enum nl80211_connect_failed_reason reason,
-			  gfp_t gfp)
-{
-	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	nl80211_send_conn_failed_event(rdev, dev, mac_addr, reason, gfp);
-}
-EXPORT_SYMBOL(cfg80211_conn_failed);
 
 struct cfg80211_mgmt_registration {
 	struct list_head list;
···
 	return result;
 }
 EXPORT_SYMBOL(cfg80211_rx_mgmt);
-
-void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
-			     const u8 *buf, size_t len, bool ack, gfp_t gfp)
-{
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
-
-	/* Indicate TX status of the Action frame to user space */
-	nl80211_send_mgmt_tx_status(rdev, wdev, cookie, buf, len, ack, gfp);
-}
-EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
-
-void cfg80211_cqm_rssi_notify(struct net_device *dev,
-			      enum nl80211_cqm_rssi_threshold_event rssi_event,
-			      gfp_t gfp)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
-
-	/* Indicate roaming trigger event to user space */
-	nl80211_send_cqm_rssi_notify(rdev, dev, rssi_event, gfp);
-}
-EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
-
-void cfg80211_cqm_pktloss_notify(struct net_device *dev,
-				 const u8 *peer, u32 num_packets, gfp_t gfp)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
-
-	/* Indicate roaming trigger event to user space */
-	nl80211_send_cqm_pktloss_notify(rdev, dev, peer, num_packets, gfp);
-}
-EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
-
-void cfg80211_cqm_txe_notify(struct net_device *dev,
-			     const u8 *peer, u32 num_packets,
-			     u32 rate, u32 intvl, gfp_t gfp)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	nl80211_send_cqm_txe_notify(rdev, dev, peer, num_packets,
-				    rate, intvl, gfp);
-}
-EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
-
-void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
-			       const u8 *replay_ctr, gfp_t gfp)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_gtk_rekey_notify(dev, bssid);
-	nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
-}
-EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
-
-void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
-				     const u8 *bssid, bool preauth, gfp_t gfp)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
-	nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
-}
-EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
 
 void cfg80211_dfs_channels_update_work(struct work_struct *work)
 {

net/wireless/nl80211.c

···
 	[NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
 	[NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
 	[NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
+	[NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
+	[NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
+	[NL80211_ATTR_VHT_CAPABILITY_MASK] = {
+		.len = NL80211_VHT_CAPABILITY_LEN,
+	},
+	[NL80211_ATTR_MDID] = { .type = NLA_U16 },
+	[NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
+				  .len = IEEE80211_MAX_DATA_LEN },
 };
 
 /* policy for the key attributes */
···
 }
 
 static int nl80211_msg_put_channel(struct sk_buff *msg,
-				   struct ieee80211_channel *chan)
+				   struct ieee80211_channel *chan,
+				   bool large)
 {
 	if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
 			chan->center_freq))
···
 	    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
 		goto nla_put_failure;
 	if (chan->flags & IEEE80211_CHAN_RADAR) {
-		u32 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
 		if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
 			goto nla_put_failure;
-		if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
-				chan->dfs_state))
+		if (large) {
+			u32 time;
+
+			time = elapsed_jiffies_msecs(chan->dfs_state_entered);
+
+			if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
+					chan->dfs_state))
+				goto nla_put_failure;
+			if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
+					time))
+				goto nla_put_failure;
+		}
+	}
+
+	if (large) {
+		if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
+		    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
 			goto nla_put_failure;
-		if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, time))
+		if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
+		    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
+			goto nla_put_failure;
+		if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
+		    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
+			goto nla_put_failure;
+		if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
+		    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
 			goto nla_put_failure;
 	}
-	if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
-	    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
-		goto nla_put_failure;
-	if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
-	    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
-		goto nla_put_failure;
-	if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
-	    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
-		goto nla_put_failure;
-	if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
-	    nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
-		goto nla_put_failure;
 
 	if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
 			DBM_TO_MBM(chan->max_power)))
···
 }
 
 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
-					  struct sk_buff *msg)
+					  struct sk_buff *msg,
+					  bool large)
 {
 	struct nlattr *nl_combis;
 	int i, j;
···
 		    nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
 				c->max_interfaces))
 			goto nla_put_failure;
-		if (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
+		if (large &&
+		    nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
 				c->radar_detect_widths))
 			goto nla_put_failure;
 
···
 	nla_nest_end(msg, nl_tcp);
 	return 0;
 }
+
+static int nl80211_send_wowlan(struct sk_buff *msg,
+			       struct cfg80211_registered_device *dev,
+			       bool large)
+{
+	struct nlattr *nl_wowlan;
+
+	if (!dev->wiphy.wowlan.flags && !dev->wiphy.wowlan.n_patterns)
+		return 0;
+
+	nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
+	if (!nl_wowlan)
+		return -ENOBUFS;
+
+	if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
+	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
+	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
+	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
+	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
+	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
+	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
+	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
+	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
+	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
+	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
+	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
+	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
+	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
+	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
+	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
+		return -ENOBUFS;
+
+	if (dev->wiphy.wowlan.n_patterns) {
+		struct nl80211_wowlan_pattern_support pat = {
+			.max_patterns = dev->wiphy.wowlan.n_patterns,
+			.min_pattern_len = dev->wiphy.wowlan.pattern_min_len,
+			.max_pattern_len = dev->wiphy.wowlan.pattern_max_len,
+			.max_pkt_offset = dev->wiphy.wowlan.max_pkt_offset,
+		};
+
+		if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
+			    sizeof(pat), &pat))
+			return -ENOBUFS;
+	}
+
+	if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
+		return -ENOBUFS;
+
+	nla_nest_end(msg, nl_wowlan);
+
+	return 0;
+}
 #endif
 
-static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
-			      struct cfg80211_registered_device *dev)
+static int nl80211_send_band_rateinfo(struct sk_buff *msg,
+				      struct ieee80211_supported_band *sband)
+{
+	struct nlattr *nl_rates, *nl_rate;
+	struct ieee80211_rate *rate;
+	int i;
+
+	/* add HT info */
+	if (sband->ht_cap.ht_supported &&
+	    (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
+		     sizeof(sband->ht_cap.mcs),
+		     &sband->ht_cap.mcs) ||
+	     nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
+			 sband->ht_cap.cap) ||
+	     nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
+			sband->ht_cap.ampdu_factor) ||
+	     nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
+			sband->ht_cap.ampdu_density)))
+		return -ENOBUFS;
+
+	/* add VHT info */
+	if (sband->vht_cap.vht_supported &&
+	    (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
+		     sizeof(sband->vht_cap.vht_mcs),
+		     &sband->vht_cap.vht_mcs) ||
+	     nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
+			 sband->vht_cap.cap)))
+		return -ENOBUFS;
+
+	/* add bitrates */
+	nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
+	if (!nl_rates)
+		return -ENOBUFS;
+
+	for (i = 0; i < sband->n_bitrates; i++) {
+		nl_rate = nla_nest_start(msg, i);
+		if (!nl_rate)
+			return -ENOBUFS;
+
+		rate = &sband->bitrates[i];
+		if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
+				rate->bitrate))
+			return -ENOBUFS;
+		if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
+		    nla_put_flag(msg,
+				 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
+			return -ENOBUFS;
+
+		nla_nest_end(msg, nl_rate);
+	}
+
+	nla_nest_end(msg, nl_rates);
+
+	return 0;
+}
+
+static int
+nl80211_send_mgmt_stypes(struct sk_buff *msg,
+			 const struct ieee80211_txrx_stypes *mgmt_stypes)
+{
+	u16 stypes;
+	struct nlattr *nl_ftypes, *nl_ifs;
+	enum nl80211_iftype ift;
+	int i;
+
+	if (!mgmt_stypes)
+		return 0;
+
+	nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
+	if (!nl_ifs)
+		return -ENOBUFS;
+
+	for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
+		nl_ftypes = nla_nest_start(msg, ift);
+		if (!nl_ftypes)
+			return -ENOBUFS;
+		i = 0;
+		stypes = mgmt_stypes[ift].tx;
+		while (stypes) {
+			if ((stypes & 1) &&
+			    nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
+					(i << 4) | IEEE80211_FTYPE_MGMT))
+				return -ENOBUFS;
+			stypes >>= 1;
+			i++;
+		}
+		nla_nest_end(msg, nl_ftypes);
+	}
+
+	nla_nest_end(msg, nl_ifs);
+
+	nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
+	if (!nl_ifs)
+		return -ENOBUFS;
+
+	for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
+		nl_ftypes = nla_nest_start(msg, ift);
+		if (!nl_ftypes)
+			return -ENOBUFS;
+		i = 0;
+		stypes = mgmt_stypes[ift].rx;
+		while (stypes) {
+			if ((stypes & 1) &&
+			    nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
+					(i << 4) | IEEE80211_FTYPE_MGMT))
+				return -ENOBUFS;
+			stypes >>= 1;
+			i++;
+		}
+		nla_nest_end(msg, nl_ftypes);
+	}
+	nla_nest_end(msg, nl_ifs);
+
+	return 0;
+}
+
+static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
+			      struct sk_buff *msg, u32 portid, u32 seq,
+			      int flags, bool split, long *split_start,
+			      long *band_start, long *chan_start)
 {
 	void *hdr;
 	struct nlattr *nl_bands, *nl_band;
 	struct nlattr *nl_freqs, *nl_freq;
-	struct nlattr *nl_rates, *nl_rate;
 	struct nlattr *nl_cmds;
 	enum ieee80211_band band;
 	struct ieee80211_channel *chan;
-	struct ieee80211_rate *rate;
 	int i;
 	const struct ieee80211_txrx_stypes *mgmt_stypes =
 				dev->wiphy.mgmt_stypes;
+	long start = 0, start_chan = 0, start_band = 0;
+	u32 features;
 
 	hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
 	if (!hdr)
-		return -1;
+		return -ENOBUFS;
+
+	/* allow always using the variables */
+	if (!split) {
+		split_start = &start;
+		band_start = &start_band;
+		chan_start = &start_chan;
+	}
 
 	if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
-	    nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
+	    nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
+			   wiphy_name(&dev->wiphy)) ||
 	    nla_put_u32(msg, NL80211_ATTR_GENERATION,
-			cfg80211_rdev_list_generation) ||
-	    nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
-		       dev->wiphy.retry_short) ||
-	    nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
-		       dev->wiphy.retry_long) ||
-	    nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
-			dev->wiphy.frag_threshold) ||
-	    nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
-			dev->wiphy.rts_threshold) ||
-	    nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
-		       dev->wiphy.coverage_class) ||
-	    nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
-		       dev->wiphy.max_scan_ssids) ||
-	    nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
-		       dev->wiphy.max_sched_scan_ssids) ||
-	    nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
-			dev->wiphy.max_scan_ie_len) ||
-	    nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
-			dev->wiphy.max_sched_scan_ie_len) ||
-	    nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
-		       dev->wiphy.max_match_sets))
+			cfg80211_rdev_list_generation))
 		goto nla_put_failure;
 
-	if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
-	    nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
-		goto nla_put_failure;
-	if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
-	    nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
-		goto nla_put_failure;
-	if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
-	    nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
-		goto nla_put_failure;
-	if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
-	    nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
-		goto nla_put_failure;
-	if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
-	    nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
-		goto nla_put_failure;
-	if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
-	    nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
-		goto nla_put_failure;
-
-	if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
-		    sizeof(u32) * dev->wiphy.n_cipher_suites,
-		    dev->wiphy.cipher_suites))
-		goto nla_put_failure;
-
-	if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
-		       dev->wiphy.max_num_pmkids))
-		goto nla_put_failure;
-
-	if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
-	    nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
-		goto nla_put_failure;
-
-	if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
-			dev->wiphy.available_antennas_tx) ||
-	    nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
-			dev->wiphy.available_antennas_rx))
-		goto nla_put_failure;
-
-	if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
-	    nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
-			dev->wiphy.probe_resp_offload))
-		goto nla_put_failure;
-
-	if ((dev->wiphy.available_antennas_tx ||
-	     dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
-		u32 tx_ant = 0, rx_ant = 0;
-		int res;
-		res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
-		if (!res) {
-			if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
-					tx_ant) ||
-			    nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
-					rx_ant))
-				goto nla_put_failure;
-		}
-	}
-
-	if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
-				dev->wiphy.interface_modes))
-		goto nla_put_failure;
-
-	nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
-	if (!nl_bands)
-		goto nla_put_failure;
-
-	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
-		if (!dev->wiphy.bands[band])
-			continue;
-
-		nl_band = nla_nest_start(msg, band);
-		if (!nl_band)
+	switch (*split_start) {
+	case 0:
+		if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
+			       dev->wiphy.retry_short) ||
+		    nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
+			       dev->wiphy.retry_long) ||
+		    nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
+				dev->wiphy.frag_threshold) ||
+		    nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
+				dev->wiphy.rts_threshold) ||
+		    nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
+			       dev->wiphy.coverage_class) ||
+		    nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
+			       dev->wiphy.max_scan_ssids) ||
+		    nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
+			       dev->wiphy.max_sched_scan_ssids) ||
+		    nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
+				dev->wiphy.max_scan_ie_len) ||
+		    nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
+				dev->wiphy.max_sched_scan_ie_len) ||
+		    nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
+			       dev->wiphy.max_match_sets))
 			goto nla_put_failure;
 
-		/* add HT info */
-		if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
-		    (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
-			     sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
-			     &dev->wiphy.bands[band]->ht_cap.mcs) ||
-		     nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
-				 dev->wiphy.bands[band]->ht_cap.cap) ||
-		     nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
-				dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
-		     nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
-				dev->wiphy.bands[band]->ht_cap.ampdu_density)))
+		if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
+		    nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
+			goto nla_put_failure;
+		if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
+		    nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
+			goto nla_put_failure;
+		if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
+		    nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
+			goto nla_put_failure;
+		if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
+		    nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
+			goto nla_put_failure;
+		if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
+		    nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
+			goto nla_put_failure;
+		if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
+		    nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
 			goto nla_put_failure;
 
-		/* add VHT info */
-		if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
-		    (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
-			     sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
-			     &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
-		     nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
-				 dev->wiphy.bands[band]->vht_cap.cap)))
+		(*split_start)++;
+		if (split)
+			break;
+	case 1:
+		if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
+			    sizeof(u32) * dev->wiphy.n_cipher_suites,
+			    dev->wiphy.cipher_suites))
 			goto nla_put_failure;
 
-		/* add frequencies */
-		nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
-		if (!nl_freqs)
+		if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
+			       dev->wiphy.max_num_pmkids))
 			goto nla_put_failure;
 
-		for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
-			nl_freq = nla_nest_start(msg, i);
-			if (!nl_freq)
-				goto nla_put_failure;
+		if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
+		    nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
+			goto nla_put_failure;
 
-			chan = &dev->wiphy.bands[band]->channels[i];
+		if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
+				dev->wiphy.available_antennas_tx) ||
+		    nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
+				dev->wiphy.available_antennas_rx))
+			goto nla_put_failure;
 
-			if (nl80211_msg_put_channel(msg, chan))
-				goto nla_put_failure;
+		if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
+		    nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
+				dev->wiphy.probe_resp_offload))
+			goto nla_put_failure;
 
-			nla_nest_end(msg, nl_freq);
+		if ((dev->wiphy.available_antennas_tx ||
+		     dev->wiphy.available_antennas_rx) &&
+		    dev->ops->get_antenna) {
+			u32 tx_ant = 0, rx_ant = 0;
+			int res;
+			res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
+			if (!res) {
+				if (nla_put_u32(msg,
+						NL80211_ATTR_WIPHY_ANTENNA_TX,
+						tx_ant) ||
+				    nla_put_u32(msg,
+						NL80211_ATTR_WIPHY_ANTENNA_RX,
+						rx_ant))
+					goto nla_put_failure;
+			}
 		}
 
-		nla_nest_end(msg, nl_freqs);
-
-		/* add bitrates */
-		nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
-		if (!nl_rates)
+		(*split_start)++;
+		if (split)
+			break;
+	case 2:
+		if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
+					dev->wiphy.interface_modes))
+				goto nla_put_failure;
+		(*split_start)++;
+		if (split)
+			break;
+	case 3:
+		nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
+		if (!nl_bands)
 			goto nla_put_failure;
 
-		for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
-			nl_rate = nla_nest_start(msg, i);
-			if (!nl_rate)
+		for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
+			struct ieee80211_supported_band *sband;
+
+			sband = dev->wiphy.bands[band];
+
+			if (!sband)
+				continue;
+
+			nl_band = nla_nest_start(msg, band);
+			if (!nl_band)
 				goto nla_put_failure;
 
-			rate = &dev->wiphy.bands[band]->bitrates[i];
-			if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
-					rate->bitrate))
-				goto nla_put_failure;
-			if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
-			    nla_put_flag(msg,
-					 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
-				goto nla_put_failure;
+			switch (*chan_start) {
+			case 0:
+				if (nl80211_send_band_rateinfo(msg, sband))
+					goto nla_put_failure;
+				(*chan_start)++;
+				if (split)
+					break;
+			default:
+				/* add frequencies */
+				nl_freqs = nla_nest_start(
+					msg, NL80211_BAND_ATTR_FREQS);
+				if (!nl_freqs)
+					goto nla_put_failure;
 
-			nla_nest_end(msg, nl_rate);
+				for (i = *chan_start - 1;
+				     i < sband->n_channels;
+				     i++) {
+					nl_freq = nla_nest_start(msg, i);
+					if (!nl_freq)
+						goto nla_put_failure;
+
+					chan = &sband->channels[i];
+
+					if (nl80211_msg_put_channel(msg, chan,
+								    split))
+						goto nla_put_failure;
+
+					nla_nest_end(msg, nl_freq);
+					if (split)
+						break;
+				}
+				if (i < sband->n_channels)
+					*chan_start = i + 2;
+				else
+					*chan_start = 0;
+				nla_nest_end(msg, nl_freqs);
+			}
+
+			nla_nest_end(msg, nl_band);
+
+			if (split) {
+				/* start again here */
+				if (*chan_start)
+					band--;
+				break;
+			}
 		}
+		nla_nest_end(msg, nl_bands);
 
-		nla_nest_end(msg, nl_rates);
+		if (band < IEEE80211_NUM_BANDS)
+			*band_start = band + 1;
+		else
+			*band_start = 0;
 
-		nla_nest_end(msg, nl_band);
-	}
-	nla_nest_end(msg, nl_bands);
-
-	nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
-	if (!nl_cmds)
-		goto nla_put_failure;
-
-	i = 0;
-#define CMD(op, n)						\
-	 do {							\
-		if (dev->ops->op) {				\
-			i++;					\
-			if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
-				goto nla_put_failure;		\
-		}						\
-	} while (0)
-
-	CMD(add_virtual_intf, NEW_INTERFACE);
-	CMD(change_virtual_intf, SET_INTERFACE);
-	CMD(add_key, NEW_KEY);
-	CMD(start_ap, START_AP);
-	CMD(add_station, NEW_STATION);
-	CMD(add_mpath, NEW_MPATH);
-	CMD(update_mesh_config, SET_MESH_CONFIG);
-	CMD(change_bss, SET_BSS);
-	CMD(auth, AUTHENTICATE);
-	CMD(assoc, ASSOCIATE);
-	CMD(deauth, DEAUTHENTICATE);
-	CMD(disassoc, DISASSOCIATE);
-	CMD(join_ibss, JOIN_IBSS);
-	CMD(join_mesh, JOIN_MESH);
-	CMD(set_pmksa, SET_PMKSA);
-	CMD(del_pmksa, DEL_PMKSA);
-	CMD(flush_pmksa, FLUSH_PMKSA);
-	if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
-		CMD(remain_on_channel, REMAIN_ON_CHANNEL);
-	CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
-	CMD(mgmt_tx, FRAME);
-	CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
-	if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
-		i++;
-		if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
+		/* if bands & channels are done, continue outside */
+		if (*band_start == 0 && *chan_start == 0)
+			(*split_start)++;
+		if (split)
+			break;
+	case 4:
+		nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
+		if (!nl_cmds)
 			goto nla_put_failure;
-	}
-	if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
-	    dev->ops->join_mesh) {
-		i++;
-		if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
-			goto nla_put_failure;
-	}
-	CMD(set_wds_peer, SET_WDS_PEER);
-	if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
-		CMD(tdls_mgmt, TDLS_MGMT);
-		CMD(tdls_oper, TDLS_OPER);
-	}
-	if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
-		CMD(sched_scan_start, START_SCHED_SCAN);
-	CMD(probe_client, PROBE_CLIENT);
-	CMD(set_noack_map, SET_NOACK_MAP);
-	if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
-		i++;
-		if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
-			goto nla_put_failure;
-	}
-	CMD(start_p2p_device, START_P2P_DEVICE);
-	CMD(set_mcast_rate, SET_MCAST_RATE);
+
+		i = 0;
+#define CMD(op, n)							\
+		 do {							\
+			if (dev->ops->op) {				\
+				i++;					\
+				if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
+					goto nla_put_failure;		\
+			}						\
+		} while (0)
+
+		CMD(add_virtual_intf, NEW_INTERFACE);
+		CMD(change_virtual_intf, SET_INTERFACE);
+		CMD(add_key, NEW_KEY);
+		CMD(start_ap, START_AP);
+		CMD(add_station, NEW_STATION);
+		CMD(add_mpath, NEW_MPATH);
+		CMD(update_mesh_config, SET_MESH_CONFIG);
+		CMD(change_bss, SET_BSS);
+		CMD(auth, AUTHENTICATE);
+		CMD(assoc, ASSOCIATE);
+		CMD(deauth, DEAUTHENTICATE);
+		CMD(disassoc, DISASSOCIATE);
+		CMD(join_ibss, JOIN_IBSS);
+		CMD(join_mesh, JOIN_MESH);
+		CMD(set_pmksa, SET_PMKSA);
+		CMD(del_pmksa, DEL_PMKSA);
+		CMD(flush_pmksa, FLUSH_PMKSA);
+		if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
+			CMD(remain_on_channel, REMAIN_ON_CHANNEL);
+		CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
+		CMD(mgmt_tx, FRAME);
+		CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
+		if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
+			i++;
+			if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
+				goto nla_put_failure;
+		}
+		if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
+		    dev->ops->join_mesh) {
+			i++;
+			if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
+				goto nla_put_failure;
+		}
+		CMD(set_wds_peer, SET_WDS_PEER);
+		if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
+			CMD(tdls_mgmt, TDLS_MGMT);
+			CMD(tdls_oper, TDLS_OPER);
+		}
+		if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
+			CMD(sched_scan_start, START_SCHED_SCAN);
+		CMD(probe_client, PROBE_CLIENT);
+		CMD(set_noack_map, SET_NOACK_MAP);
+		if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
+			i++;
+			if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
+				goto nla_put_failure;
+		}
+		CMD(start_p2p_device, START_P2P_DEVICE);
+		CMD(set_mcast_rate, SET_MCAST_RATE);
 
 #ifdef CONFIG_NL80211_TESTMODE
-	CMD(testmode_cmd, TESTMODE);
+		CMD(testmode_cmd, TESTMODE);
 #endif
 
 #undef CMD
 
-	if (dev->ops->connect || dev->ops->auth) {
-		i++;
-		if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
-			goto nla_put_failure;
-	}
-
-	if (dev->ops->disconnect || dev->ops->deauth) {
-		i++;
-		if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
-			goto nla_put_failure;
-	}
-
-	nla_nest_end(msg, nl_cmds);
-
-	if (dev->ops->remain_on_channel &&
-	    (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
-	    nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
-			dev->wiphy.max_remain_on_channel_duration))
-		goto nla_put_failure;
-
-	if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
-	    nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
-		goto nla_put_failure;
-
-	if (mgmt_stypes) {
-		u16 stypes;
-		struct nlattr *nl_ftypes, *nl_ifs;
-		enum nl80211_iftype ift;
-
-		nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
-		if (!nl_ifs)
-			goto nla_put_failure;
-
-		for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
-			nl_ftypes = nla_nest_start(msg, ift);
-			if (!nl_ftypes)
+		if (dev->ops->connect || dev->ops->auth) {
+			i++;
+			if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
 				goto nla_put_failure;
-			i = 0;
-			stypes = mgmt_stypes[ift].tx;
-			while (stypes) {
-				if ((stypes & 1) &&
-				    nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
-						(i << 4) | IEEE80211_FTYPE_MGMT))
-					goto nla_put_failure;
-				stypes >>= 1;
-				i++;
-			}
-			nla_nest_end(msg, nl_ftypes);
 		}
 
-		nla_nest_end(msg, nl_ifs);
+		if (dev->ops->disconnect || dev->ops->deauth) {
+			i++;
+			if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
+				goto nla_put_failure;
+		}
 
-		nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
-		if (!nl_ifs)
+		nla_nest_end(msg, nl_cmds);
+		(*split_start)++;
+		if (split)
+			break;
+	case 5:
+		if (dev->ops->remain_on_channel &&
+		    (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
+		    nla_put_u32(msg,
+				NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
+				dev->wiphy.max_remain_on_channel_duration))
 			goto nla_put_failure;
 
-		for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
-			nl_ftypes = nla_nest_start(msg, ift);
-			if (!nl_ftypes)
-				goto nla_put_failure;
-			i = 0;
-			stypes = mgmt_stypes[ift].rx;
-			while (stypes) {
-				if ((stypes & 1) &&
-				    nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
-						(i << 4) | IEEE80211_FTYPE_MGMT))
-					goto nla_put_failure;
-				stypes >>= 1;
-				i++;
-			}
-			nla_nest_end(msg, nl_ftypes);
-		}
-		nla_nest_end(msg, nl_ifs);
-	}
+		if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
+		    nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
+			goto nla_put_failure;
 
+		if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
+			goto nla_put_failure;
+		(*split_start)++;
+		if (split)
+			break;
+	case 6:
 #ifdef CONFIG_PM
-	if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
-		struct nlattr *nl_wowlan;
-
-		nl_wowlan = nla_nest_start(msg,
-				NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
-		if (!nl_wowlan)
+		if (nl80211_send_wowlan(msg, dev, split))
 			goto nla_put_failure;
-
-		if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
-		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
-		    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
-		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
-		    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
-		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
-		    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
-		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
-		    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
-		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
-		    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
-		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
-		    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
-		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
-		    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
-		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
-		    goto nla_put_failure;
-		if (dev->wiphy.wowlan.n_patterns) {
-			struct nl80211_wowlan_pattern_support pat = {
-				.max_patterns = dev->wiphy.wowlan.n_patterns,
-				.min_pattern_len =
-					dev->wiphy.wowlan.pattern_min_len,
-				.max_pattern_len =
-					dev->wiphy.wowlan.pattern_max_len,
-				.max_pkt_offset =
-					dev->wiphy.wowlan.max_pkt_offset,
-			};
-			if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
-				    sizeof(pat), &pat))
-				goto nla_put_failure;
-		}
-
-		if (nl80211_send_wowlan_tcp_caps(dev, msg))
-			goto nla_put_failure;
-
-		nla_nest_end(msg, nl_wowlan);
-	}
+		(*split_start)++;
+		if (split)
+			break;
+#else
+		(*split_start)++;
 #endif
+	case 7:
+		if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
+					dev->wiphy.software_iftypes))
+			goto nla_put_failure;
 
-	if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
-				dev->wiphy.software_iftypes))
-		goto nla_put_failure;
+		if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
+			goto nla_put_failure;
 
-	if (nl80211_put_iface_combinations(&dev->wiphy, msg))
-		goto nla_put_failure;
+		(*split_start)++;
+		if (split)
+			break;
+	case 8:
+		if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
+		    nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
+				dev->wiphy.ap_sme_capa))
+			goto nla_put_failure;
 
-	if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
-	    nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
-			dev->wiphy.ap_sme_capa))
-		goto nla_put_failure;
+		features = dev->wiphy.features;
+		/*
+		 * We can only add the per-channel limit information if the
+		 * dump is split, otherwise it makes it too big. Therefore
+		 * only advertise it in that case.
+		 */
+		if (split)
+			features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
+		if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
+			goto nla_put_failure;
 
-	if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
-			dev->wiphy.features))
-		goto nla_put_failure;
+		if (dev->wiphy.ht_capa_mod_mask &&
+		    nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
+			    sizeof(*dev->wiphy.ht_capa_mod_mask),
+			    dev->wiphy.ht_capa_mod_mask))
+			goto nla_put_failure;
 
-	if (dev->wiphy.ht_capa_mod_mask &&
-	    nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
-		    sizeof(*dev->wiphy.ht_capa_mod_mask),
-		    dev->wiphy.ht_capa_mod_mask))
-		goto nla_put_failure;
+		if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
+		    dev->wiphy.max_acl_mac_addrs &&
+		    nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
+				dev->wiphy.max_acl_mac_addrs))
+			goto nla_put_failure;
 
-	if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
-	    dev->wiphy.max_acl_mac_addrs &&
-	    nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
-			dev->wiphy.max_acl_mac_addrs))
-		goto nla_put_failure;
+		/*
+		 * Any information below this point is only available to
+		 * applications that can deal with it being split. This
+		 * helps ensure that newly added capabilities don't break
+		 * older tools by overrunning their buffers.
+		 *
+		 * We still increment split_start so that in the split
+		 * case we'll continue with more data in the next round,
+		 * but break unconditionally so unsplit data stops here.
+		 */
+		(*split_start)++;
+		break;
+	case 9:
+		if (dev->wiphy.extended_capabilities &&
+		    (nla_put(msg, NL80211_ATTR_EXT_CAPA,
+			     dev->wiphy.extended_capabilities_len,
+			     dev->wiphy.extended_capabilities) ||
+		     nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
+			     dev->wiphy.extended_capabilities_len,
+			     dev->wiphy.extended_capabilities_mask)))
+			goto nla_put_failure;
 
-	if (dev->wiphy.extended_capabilities &&
-	    (nla_put(msg, NL80211_ATTR_EXT_CAPA,
-		     dev->wiphy.extended_capabilities_len,
-		     dev->wiphy.extended_capabilities) ||
-	     nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
-		     dev->wiphy.extended_capabilities_len,
-		     dev->wiphy.extended_capabilities_mask)))
-		goto nla_put_failure;
+		if (dev->wiphy.vht_capa_mod_mask &&
+		    nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
+			    sizeof(*dev->wiphy.vht_capa_mod_mask),
+			    dev->wiphy.vht_capa_mod_mask))
+			goto nla_put_failure;
 
+		/* done */
+		*split_start = 0;
+		break;
+	}
 	return genlmsg_end(msg, hdr);
 
  nla_put_failure:
···
 
 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
 {
-	int idx = 0;
+	int idx = 0, ret;
 	int start = cb->args[0];
 	struct cfg80211_registered_device *dev;
+	s64 filter_wiphy = -1;
+	bool split = false;
+	struct nlattr **tb = nl80211_fam.attrbuf;
+	int res;
 
 	mutex_lock(&cfg80211_mutex);
+	res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
+			  tb, nl80211_fam.maxattr, nl80211_policy);
+	if (res == 0) {
+		split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
+		if (tb[NL80211_ATTR_WIPHY])
+			filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
+		if (tb[NL80211_ATTR_WDEV])
+			filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
+		if (tb[NL80211_ATTR_IFINDEX]) {
+			struct net_device *netdev;
+			int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
+
+			netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
+			if (!netdev) {
+				mutex_unlock(&cfg80211_mutex);
+				return -ENODEV;
+			}
+			if (netdev->ieee80211_ptr) {
+				dev = wiphy_to_dev(
+					netdev->ieee80211_ptr->wiphy);
+				filter_wiphy = dev->wiphy_idx;
+			}
+			dev_put(netdev);
+		}
+	}
+
 	list_for_each_entry(dev, &cfg80211_rdev_list, list) {
 		if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
 			continue;
 		if (++idx <= start)
 			continue;
-		if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
-				       cb->nlh->nlmsg_seq, NLM_F_MULTI,
-				       dev) < 0) {
-			idx--;
-			break;
-		}
+		if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
+			continue;
+		/* attempt to fit multiple wiphy data chunks into the skb */
+		do {
+			ret = nl80211_send_wiphy(dev, skb,
+						 NETLINK_CB(cb->skb).portid,
+						 cb->nlh->nlmsg_seq,
+						 NLM_F_MULTI,
+						 split, &cb->args[1],
+						 &cb->args[2],
+						 &cb->args[3]);
+			if (ret < 0) {
+				/*
+				 * If sending the wiphy data didn't fit (ENOBUFS
+				 * or EMSGSIZE returned), this SKB is still
+				 * empty (so it's not too big because another
+				 * wiphy dataset is already in the skb) and
+				 * we've not tried to adjust the dump allocation
+				 * yet ... then adjust the alloc size to be
+				 * bigger, and return 1 but with the empty skb.
+				 * This results in an empty message being RX'ed
+				 * in userspace, but that is ignored.
+				 *
+				 * We can then retry with the larger buffer.
+				 */
+				if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
+				    !skb->len &&
+				    cb->min_dump_alloc < 4096) {
+					cb->min_dump_alloc = 4096;
+					mutex_unlock(&cfg80211_mutex);
+					return 1;
+				}
+				idx--;
+				break;
+			}
+		} while (cb->args[1] > 0);
+		break;
 	}
 	mutex_unlock(&cfg80211_mutex);
 
···
 	struct sk_buff *msg;
 	struct cfg80211_registered_device *dev = info->user_ptr[0];
 
-	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	msg = nlmsg_new(4096, GFP_KERNEL);
 	if (!msg)
 		return -ENOMEM;
 
-	if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
+	if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
+			       false, NULL, NULL, NULL) < 0) {
 		nlmsg_free(msg);
 		return -ENOBUFS;
 	}
···
 		sta_flags = nla_data(nla);
 		params->sta_flags_mask = sta_flags->mask;
 		params->sta_flags_set = sta_flags->set;
+		params->sta_flags_set &= params->sta_flags_mask;
 		if ((params->sta_flags_mask |
 		     params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
 			return -EINVAL;
···
 	return genlmsg_reply(msg, info);
 }
 
+int cfg80211_check_station_change(struct wiphy *wiphy,
+				  struct station_parameters *params,
+				  enum cfg80211_station_type statype)
+{
+	if (params->listen_interval != -1)
+		return -EINVAL;
+	if (params->aid)
+		return -EINVAL;
+
+	/* When you run into this, adjust the code below for the new flag */
+	BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
+
+	switch (statype) {
+	case CFG80211_STA_MESH_PEER_KERNEL:
+	case CFG80211_STA_MESH_PEER_USER:
+		/*
+		 * No ignoring the TDLS flag here -- the userspace mesh
+		 * code doesn't have the bug of including TDLS in the
+		 * mask everywhere.
+		 */
+		if (params->sta_flags_mask &
+				~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
+				  BIT(NL80211_STA_FLAG_MFP) |
+				  BIT(NL80211_STA_FLAG_AUTHORIZED)))
+			return -EINVAL;
+		break;
+	case CFG80211_STA_TDLS_PEER_SETUP:
+	case CFG80211_STA_TDLS_PEER_ACTIVE:
+		if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
+			return -EINVAL;
+		/* ignore since it can't change */
+		params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
+		break;
+	default:
+		/* disallow mesh-specific things */
+		if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
+			return -EINVAL;
+		if (params->local_pm)
+			return -EINVAL;
+		if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
+			return -EINVAL;
+	}
+
+	if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
+	    statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
+		/* TDLS can't be set, ... */
+		if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
+			return -EINVAL;
+		/*
+		 * ... but don't bother the driver with it. This works around
+		 * a hostapd/wpa_supplicant issue -- it always includes the
+		 * TLDS_PEER flag in the mask even for AP mode.
+		 */
+		params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
+	}
+
+	if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
+		/* reject other things that can't change */
+		if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
+			return -EINVAL;
+		if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
+			return -EINVAL;
+		if (params->supported_rates)
+			return -EINVAL;
+		if (params->ext_capab || params->ht_capa || params->vht_capa)
+			return -EINVAL;
+	}
+
+	if (statype != CFG80211_STA_AP_CLIENT) {
+		if (params->vlan)
+			return -EINVAL;
+	}
+
+	switch (statype) {
+	case CFG80211_STA_AP_MLME_CLIENT:
+		/* Use this only for authorizing/unauthorizing a station */
+		if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
+			return -EOPNOTSUPP;
+		break;
+	case CFG80211_STA_AP_CLIENT:
+		/* accept only the listed bits */
+		if (params->sta_flags_mask &
+				~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
+				  BIT(NL80211_STA_FLAG_AUTHENTICATED) |
+				  BIT(NL80211_STA_FLAG_ASSOCIATED) |
+				  BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
+				  BIT(NL80211_STA_FLAG_WME) |
+				  BIT(NL80211_STA_FLAG_MFP)))
+			return -EINVAL;
+
+		/* but authenticated/associated only if driver handles it */
+		if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
+		    params->sta_flags_mask &
+				(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
+				 BIT(NL80211_STA_FLAG_ASSOCIATED)))
+			return -EINVAL;
+		break;
+	case CFG80211_STA_IBSS:
+	case CFG80211_STA_AP_STA:
+		/* reject any changes other than AUTHORIZED */
+		if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
+			return -EINVAL;
+		break;
+	case CFG80211_STA_TDLS_PEER_SETUP:
+		/* reject any changes other than AUTHORIZED or WME */
+		if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
+					       BIT(NL80211_STA_FLAG_WME)))
+			return -EINVAL;
+		/* force (at least) rates when authorizing */
+		if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
+		    !params->supported_rates)
+			return -EINVAL;
+		break;
+	case CFG80211_STA_TDLS_PEER_ACTIVE:
+		/* reject any changes */
+		return -EINVAL;
+	case CFG80211_STA_MESH_PEER_KERNEL:
+		if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
+			return -EINVAL;
+		break;
+	case CFG80211_STA_MESH_PEER_USER:
+		if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
+			return -EINVAL;
+		break;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(cfg80211_check_station_change);
+
 /*
  * Get vlan interface making sure it is running and on the right wiphy.
  */
···
 		goto error;
 	}
 
+	if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
+	    v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
+	    v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
+		ret = -EINVAL;
+		goto error;
+	}
+
 	if (!netif_running(v)) {
 		ret = -ENETDOWN;
 		goto error;
···
 	[NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
 };
 
-static int nl80211_set_station_tdls(struct genl_info *info,
-				    struct station_parameters *params)
+static int nl80211_parse_sta_wme(struct genl_info *info,
+				 struct station_parameters *params)
 {
 	struct nlattr *tb[NL80211_STA_WME_MAX + 1];
 	struct nlattr *nla;
 	int err;
-
-	/* Dummy STA entry gets updated once the peer capabilities are known */
-	if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
-		params->ht_capa =
-			nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
-	if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
-		params->vht_capa =
-			nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
 
 	/* parse WME attributes if present */
 	if (!info->attrs[NL80211_ATTR_STA_WME])
···
 	return 0;
 }
 
+static int nl80211_set_station_tdls(struct genl_info *info,
+				    struct station_parameters *params)
+{
+	/* Dummy STA entry gets updated once the peer capabilities are known */
+	if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
+		params->ht_capa =
+			nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
+	if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
+		params->vht_capa =
+			nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
+
+	return nl80211_parse_sta_wme(info, params);
+}
+
 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
-	int err;
 	struct net_device *dev = info->user_ptr[1];
 	struct station_parameters params;
-	u8 *mac_addr = NULL;
+	u8 *mac_addr;
+	int err;
 
 	memset(&params, 0, sizeof(params));
 
 	params.listen_interval = -1;
-	params.plink_state = -1;
+
+	if (!rdev->ops->change_station)
+		return -EOPNOTSUPP;
 
 	if (info->attrs[NL80211_ATTR_STA_AID])
 		return -EINVAL;
···
 	if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
 		return -EINVAL;
 
-	if (!rdev->ops->change_station)
-		return -EOPNOTSUPP;
-
 	if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
 		return -EINVAL;
 
-	if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
+	if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
 		params.plink_action =
-		    nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
+			nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
+		if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
+			return -EINVAL;
+	}
 
-	if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
+	if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
 		params.plink_state =
-		    nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
+			nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
+		if (params.plink_state >= NUM_NL80211_PLINK_STATES)
+			return -EINVAL;
+		params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
+	}
 
 	if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
 		enum nl80211_mesh_power_mode pm = nla_get_u32(
···
 		params.local_pm = pm;
 	}
 
+	/* Include parameters for TDLS peer (will check later) */
+	err = nl80211_set_station_tdls(info, &params);
+	if (err)
+		return err;
+
+	params.vlan = get_vlan(info, rdev);
+	if (IS_ERR(params.vlan))
+		return PTR_ERR(params.vlan);
+
 	switch (dev->ieee80211_ptr->iftype) {
 	case NL80211_IFTYPE_AP:
 	case NL80211_IFTYPE_AP_VLAN:
 	case NL80211_IFTYPE_P2P_GO:
-		/* disallow mesh-specific things */
-		if (params.plink_action)
-			return -EINVAL;
-		if (params.local_pm)
-			return -EINVAL;
-
-		/* TDLS can't be set, ... */
-		if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
-			return -EINVAL;
-		/*
-		 * ... but don't bother the driver with it. This works around
-		 * a hostapd/wpa_supplicant issue -- it always includes the
-		 * TLDS_PEER flag in the mask even for AP mode.
-		 */
-		params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
-
-		/* accept only the listed bits */
-		if (params.sta_flags_mask &
-				~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
-				  BIT(NL80211_STA_FLAG_AUTHENTICATED) |
-				  BIT(NL80211_STA_FLAG_ASSOCIATED) |
-				  BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
-				  BIT(NL80211_STA_FLAG_WME) |
-				  BIT(NL80211_STA_FLAG_MFP)))
-			return -EINVAL;
-
-		/* but authenticated/associated only if driver handles it */
-		if (!(rdev->wiphy.features &
-				NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
-		    params.sta_flags_mask &
-				(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
-				 BIT(NL80211_STA_FLAG_ASSOCIATED)))
-			return -EINVAL;
-
-		/* reject other things that can't change */
-		if (params.supported_rates)
-			return -EINVAL;
-		if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
-			return -EINVAL;
-		if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
-			return -EINVAL;
-		if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
-		    info->attrs[NL80211_ATTR_VHT_CAPABILITY])
-			return -EINVAL;
-
-		/* must be last in here for error handling */
-		params.vlan = get_vlan(info, rdev);
-		if (IS_ERR(params.vlan))
-			return PTR_ERR(params.vlan);
-		break;
 	case NL80211_IFTYPE_P2P_CLIENT:
 	case NL80211_IFTYPE_STATION:
-		/*
-		 * Don't allow userspace to change the TDLS_PEER flag,
-		 * but silently ignore attempts to change it since we
-		 * don't have state here to verify that it doesn't try
-		 * to change the flag.
-		 */
-		params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
-		/* Include parameters for TDLS peer (driver will check) */
-		err = nl80211_set_station_tdls(info, &params);
-		if (err)
-			return err;
-		/* disallow things sta doesn't support */
-		if (params.plink_action)
-			return -EINVAL;
-		if (params.local_pm)
-			return -EINVAL;
-		/* reject any changes other than AUTHORIZED or WME (for TDLS) */
-		if (params.sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
-					      BIT(NL80211_STA_FLAG_WME)))
-			return -EINVAL;
-		break;
 	case NL80211_IFTYPE_ADHOC:
-		/* disallow things sta doesn't support */
-		if (params.plink_action)
-			return -EINVAL;
-		if (params.local_pm)
-			return -EINVAL;
-		if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
-		    info->attrs[NL80211_ATTR_VHT_CAPABILITY])
-			return -EINVAL;
-		/* reject any changes other than AUTHORIZED */
-		if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
-			return -EINVAL;
-		break;
 	case NL80211_IFTYPE_MESH_POINT:
-		/* disallow things mesh doesn't support */
-		if (params.vlan)
-			return -EINVAL;
-		if (params.supported_rates)
-			return -EINVAL;
-		if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
-			return -EINVAL;
-		if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
-			return -EINVAL;
-		if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
-		    info->attrs[NL80211_ATTR_VHT_CAPABILITY])
-			return -EINVAL;
-		/*
-		 * No special handling for TDLS here -- the userspace
-		 * mesh code doesn't have this bug.
-		 */
-		if (params.sta_flags_mask &
-				~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
-				  BIT(NL80211_STA_FLAG_MFP) |
-				  BIT(NL80211_STA_FLAG_AUTHORIZED)))
-			return -EINVAL;
 		break;
 	default:
-		return -EOPNOTSUPP;
+		err = -EOPNOTSUPP;
+		goto out_put_vlan;
 	}
 
-	/* be aware of params.vlan when changing code here */
-
+	/* driver will call cfg80211_check_station_change() */
 	err = rdev_change_station(rdev, dev, mac_addr, &params);
 
+ out_put_vlan:
 	if (params.vlan)
 		dev_put(params.vlan);
 
···
 	u8 *mac_addr = NULL;
 
 	memset(&params, 0, sizeof(params));
+
+	if (!rdev->ops->add_station)
+		return -EOPNOTSUPP;
 
 	if (!info->attrs[NL80211_ATTR_MAC])
 		return -EINVAL;
···
 		params.vht_capa =
 			nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
 
-	if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
+	if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
 		params.plink_action =
-		    nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
+			nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
+		if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
+			return -EINVAL;
+	}
 
-	if (!rdev->ops->add_station)
-		return -EOPNOTSUPP;
+	err = nl80211_parse_sta_wme(info, &params);
+	if (err)
+		return err;
 
 	if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
 		return -EINVAL;
+
+	/* When you run into this, adjust the code below for the new flag */
+	BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
 
 	switch (dev->ieee80211_ptr->iftype) {
 	case NL80211_IFTYPE_AP:
 	case NL80211_IFTYPE_AP_VLAN:
 	case NL80211_IFTYPE_P2P_GO:
-		/* parse WME attributes if sta is WME capable */
-		if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
-		    (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
-		    info->attrs[NL80211_ATTR_STA_WME]) {
-			struct nlattr *tb[NL80211_STA_WME_MAX + 1];
-			struct nlattr *nla;
+		/* ignore WME attributes if iface/sta is not capable */
+		if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
+		    !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
+			params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
 
-			nla = info->attrs[NL80211_ATTR_STA_WME];
-			err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
-					       nl80211_sta_wme_policy);
-			if (err)
-				return err;
-
-			if (tb[NL80211_STA_WME_UAPSD_QUEUES])
-				params.uapsd_queues =
-				     nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
-			if (params.uapsd_queues &
-					~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
-				return -EINVAL;
-
-			if (tb[NL80211_STA_WME_MAX_SP])
-				params.max_sp =
-				     nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
-
-			if (params.max_sp &
-					~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
-				return -EINVAL;
-
-			params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
-		}
 		/* TDLS peers cannot be added */
 		if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
 			return -EINVAL;
···
 			return PTR_ERR(params.vlan);
 		break;
 	case NL80211_IFTYPE_MESH_POINT:
+		/* ignore uAPSD data */
+		params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
+
 		/* associated is disallowed */
 		if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
 			return -EINVAL;
···
 			return -EINVAL;
 		break;
 	case NL80211_IFTYPE_STATION:
-		/* associated is disallowed */
-		if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
+	case NL80211_IFTYPE_P2P_CLIENT:
+		/* ignore uAPSD data */
+		params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
+
+		/* these are disallowed */
+		if (params.sta_flags_mask &
+				(BIT(NL80211_STA_FLAG_ASSOCIATED) |
+				 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
 			return -EINVAL;
 		/* Only TDLS peers can be added */
 		if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
···
 		/* ... with external setup is supported */
 		if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
 			return -EOPNOTSUPP;
+		/*
+		 * Older wpa_supplicant versions always mark the TDLS peer
+		 * as authorized, but it shouldn't yet be.
+		 */
+		params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
 		break;
 	default:
 		return -EOPNOTSUPP;
···
 	[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
 	[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
 	[NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
+	[NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
 	[NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
 				    .len = IEEE80211_MAX_DATA_LEN },
 	[NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
···
 static int nl80211_parse_mesh_setup(struct genl_info *info,
 				     struct mesh_setup *setup)
 {
+	struct cfg80211_registered_device *rdev = info->user_ptr[0];
 	struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
 
 	if (!info->attrs[NL80211_ATTR_MESH_SETUP])
···
 		setup->ie = nla_data(ieattr);
 		setup->ie_len = nla_len(ieattr);
 	}
+	if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
+	    !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
+		return -EINVAL;
+	setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
 	setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
 	setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
+	if (setup->is_secure)
+		setup->user_mpm = true;
 
 	return 0;
 }
···
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
 	struct net_device *dev = info->user_ptr[1];
-	struct cfg80211_crypto_settings crypto;
 	struct ieee80211_channel *chan;
-	const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
-	int err, ssid_len, ie_len = 0;
-	bool use_mfp = false;
-	u32 flags = 0;
-	struct ieee80211_ht_cap *ht_capa = NULL;
-	struct ieee80211_ht_cap *ht_capa_mask = NULL;
+	struct cfg80211_assoc_request req = {};
+	const u8 *bssid, *ssid;
+	int err, ssid_len = 0;
 
 	if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
 		return -EINVAL;
···
 	ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
 
 	if (info->attrs[NL80211_ATTR_IE]) {
-		ie = nla_data(info->attrs[NL80211_ATTR_IE]);
-		ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+		req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+		req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
 	}
 
 	if (info->attrs[NL80211_ATTR_USE_MFP]) {
 		enum nl80211_mfp mfp =
 			nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
 		if (mfp == NL80211_MFP_REQUIRED)
-			use_mfp = true;
+			req.use_mfp = true;
 		else if (mfp != NL80211_MFP_NO)
 			return -EINVAL;
 	}
 
 	if (info->attrs[NL80211_ATTR_PREV_BSSID])
-		prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
+		req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
 
 	if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
-		flags |= ASSOC_REQ_DISABLE_HT;
+		req.flags |= ASSOC_REQ_DISABLE_HT;
 
 	if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
-		ht_capa_mask =
-			nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
+		memcpy(&req.ht_capa_mask,
+		       nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
+		       sizeof(req.ht_capa_mask));
 
 	if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
-		if (!ht_capa_mask)
+		if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
 			return -EINVAL;
-		ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
+		memcpy(&req.ht_capa,
+		       nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
+		       sizeof(req.ht_capa));
 	}
 
-	err = nl80211_crypto_settings(rdev, info, &crypto, 1);
+	if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
+		req.flags |= ASSOC_REQ_DISABLE_VHT;
+
+	if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
+		memcpy(&req.vht_capa_mask,
+		       nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
+		       sizeof(req.vht_capa_mask));
+
+	if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
+		if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
+			return -EINVAL;
+		memcpy(&req.vht_capa,
+		       nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
+		       sizeof(req.vht_capa));
+	}
+
+	err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
 	if (!err)
-		err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
-					  ssid, ssid_len, ie, ie_len, use_mfp,
-					  &crypto, flags, ht_capa,
-					  ht_capa_mask);
+		err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
+					  ssid, ssid_len, &req);
 
 	return err;
 }
···
 		memcpy(&connect.ht_capa,
 		       nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
 		       sizeof(connect.ht_capa));
+	}
+
+	if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
+		connect.flags |= ASSOC_REQ_DISABLE_VHT;
+
+	if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
+		memcpy(&connect.vht_capa_mask,
+		       nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
+		       sizeof(connect.vht_capa_mask));
+
+	if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
+		if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
+			kfree(connkeys);
+			return -EINVAL;
+		}
+		memcpy(&connect.vht_capa,
+		       nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
+		       sizeof(connect.vht_capa));
 	}
 
 	err = cfg80211_connect(rdev, dev, &connect, connkeys);
···
 			return err;
 	}
 
+	if (setup.user_mpm)
+		cfg.auto_open_plinks = false;
+
 	if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
 		err = nl80211_parse_chandef(rdev, info, &setup.chandef);
 		if (err)
···
 		return -EINVAL;
 
 	if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
-			rdev->wiphy.wowlan.tcp->data_interval_max)
+			rdev->wiphy.wowlan.tcp->data_interval_max ||
+	    nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
 		return -EINVAL;
 
 	wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
···
 	}
 
 	return 0;
+}
+
+static int nl80211_get_protocol_features(struct sk_buff *skb,
+					 struct genl_info *info)
+{
+	void *hdr;
+	struct sk_buff *msg;
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!msg)
+		return -ENOMEM;
+
+	hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
+			     NL80211_CMD_GET_PROTOCOL_FEATURES);
+	if (!hdr)
+		goto nla_put_failure;
+
+	if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
+			NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
+		goto nla_put_failure;
+
+	genlmsg_end(msg, hdr);
+	return genlmsg_reply(msg, info);
+
+ nla_put_failure:
+	kfree_skb(msg);
+	return -ENOBUFS;
+}
+
+static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *rdev = info->user_ptr[0];
+	struct cfg80211_update_ft_ies_params ft_params;
+	struct net_device *dev = info->user_ptr[1];
+
+	if (!rdev->ops->update_ft_ies)
+		return -EOPNOTSUPP;
+
+	if (!info->attrs[NL80211_ATTR_MDID] ||
+	    !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+		return -EINVAL;
+
+	memset(&ft_params, 0, sizeof(ft_params));
+	ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
+	ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+	ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+
+	return rdev_update_ft_ies(rdev, dev, &ft_params);
 }
 
 #define NL80211_FLAG_NEED_WIPHY		0x01
···
 		.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
 				  NL80211_FLAG_NEED_RTNL,
 	},
+	{
+		.cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
+		.doit = nl80211_get_protocol_features,
+		.policy = nl80211_policy,
+	},
+	{
+		.cmd = NL80211_CMD_UPDATE_FT_IES,
+		.doit = nl80211_update_ft_ies,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+		.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
+				  NL80211_FLAG_NEED_RTNL,
+	},
 };
 
 static struct genl_multicast_group nl80211_mlme_mcgrp = {
···
 	if (!msg)
 		return;
 
-	if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
+	if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
+			       false, NULL, NULL, NULL) < 0) {
 		nlmsg_free(msg);
 		return;
 	}
···
 				NL80211_CMD_DISASSOCIATE, gfp);
 }
 
-void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
-				struct net_device *netdev, const u8 *buf,
-				size_t len, gfp_t gfp)
+void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
+				 size_t len)
 {
-	nl80211_send_mlme_event(rdev, netdev, buf, len,
-				NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
-}
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
-void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
-				  struct net_device *netdev, const u8 *buf,
-				  size_t len, gfp_t gfp)
-{
-	nl80211_send_mlme_event(rdev, netdev, buf, len,
-				NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
+	trace_cfg80211_send_unprot_deauth(dev);
+	nl80211_send_mlme_event(rdev, dev, buf, len,
+				NL80211_CMD_UNPROT_DEAUTHENTICATE, GFP_ATOMIC);
 }
+EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
+
+void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
+				   size_t len)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
+	trace_cfg80211_send_unprot_disassoc(dev);
+	nl80211_send_mlme_event(rdev, dev, buf, len,
+				NL80211_CMD_UNPROT_DISASSOCIATE, GFP_ATOMIC);
+}
+EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
 
 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
 				      struct net_device *netdev, int cmd,
···
 	nlmsg_free(msg);
 }
 
-void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
-		struct net_device *netdev,
-		const u8 *macaddr, const u8* ie, u8 ie_len,
-		gfp_t gfp)
+void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
+					const u8* ie, u8 ie_len, gfp_t gfp)
 {
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 	struct sk_buff *msg;
 	void *hdr;
+
+	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
+		return;
+
+	trace_cfg80211_notify_new_peer_candidate(dev, addr);
 
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
···
 	}
 
 	if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
-	    nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
-	    nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
+	    nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
+	    nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
 	    (ie_len && ie &&
 	     nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
 		goto nla_put_failure;
···
 	genlmsg_cancel(msg, hdr);
 	nlmsg_free(msg);
 }
+EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
 
 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
 				 struct net_device *netdev, const u8 *addr,
···
 	nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
 	if (!nl_freq)
 		goto nla_put_failure;
-	if (nl80211_msg_put_channel(msg, channel_before))
+	if (nl80211_msg_put_channel(msg, channel_before, false))
 		goto nla_put_failure;
 	nla_nest_end(msg, nl_freq);
 
···
 	nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
 	if (!nl_freq)
 		goto nla_put_failure;
-	if (nl80211_msg_put_channel(msg, channel_after))
+	if (nl80211_msg_put_channel(msg, channel_after, false))
 		goto nla_put_failure;
 	nla_nest_end(msg, nl_freq);
 
···
 	nlmsg_free(msg);
 }
 
-void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
-				    struct wireless_dev *wdev, u64 cookie,
-				    struct ieee80211_channel *chan,
-				    unsigned int duration, gfp_t gfp)
+void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
+			       struct ieee80211_channel *chan,
+			       unsigned int duration, gfp_t gfp)
 {
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
+	trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
 	nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
 					  rdev, wdev, cookie, chan,
 					  duration, gfp);
 }
+EXPORT_SYMBOL(cfg80211_ready_on_channel);
 
-void nl80211_send_remain_on_channel_cancel(
-	struct cfg80211_registered_device *rdev,
-	struct wireless_dev *wdev,
-	u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
+void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
+					struct ieee80211_channel *chan,
+					gfp_t gfp)
 {
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
+	trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
 	nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
 					  rdev, wdev, cookie, chan, 0, gfp);
 }
+EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
 
-void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
-			    struct net_device *dev, const u8 *mac_addr,
-			    struct station_info *sinfo, gfp_t gfp)
+void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
+		      struct station_info *sinfo, gfp_t gfp)
 {
+	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct sk_buff *msg;
+
+	trace_cfg80211_new_sta(dev, mac_addr, sinfo);
 
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
···
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 }
+EXPORT_SYMBOL(cfg80211_new_sta);
 
-void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
-				struct net_device *dev, const u8 *mac_addr,
-				gfp_t gfp)
+void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
 {
+	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct sk_buff *msg;
 	void *hdr;
+
+	trace_cfg80211_del_sta(dev, mac_addr);
 
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
···
 	genlmsg_cancel(msg, hdr);
 	nlmsg_free(msg);
 }
+EXPORT_SYMBOL(cfg80211_del_sta);
 
-void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
-				    struct net_device *dev, const u8 *mac_addr,
-				    enum nl80211_connect_failed_reason reason,
-				    gfp_t gfp)
+void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
+			  enum nl80211_connect_failed_reason reason,
+			  gfp_t gfp)
 {
+	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct sk_buff *msg;
 	void *hdr;
 
···
 	genlmsg_cancel(msg, hdr);
 	nlmsg_free(msg);
 }
+EXPORT_SYMBOL(cfg80211_conn_failed);
 
 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
 				       const u8 *addr, gfp_t gfp)
···
 	return true;
 }
 
-bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
+bool cfg80211_rx_spurious_frame(struct net_device *dev,
+				const u8 *addr, gfp_t gfp)
 {
-	return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
-					  addr, gfp);
-}
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	bool ret;
 
-bool nl80211_unexpected_4addr_frame(struct net_device *dev,
-				    const u8 *addr, gfp_t gfp)
-{
-	return __nl80211_unexpected_frame(dev,
-					  NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
-					  addr, gfp);
+	trace_cfg80211_rx_spurious_frame(dev, addr);
+
+	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
+		    wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
+		trace_cfg80211_return_bool(false);
+		return false;
+	}
+	ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
+					 addr, gfp);
+	trace_cfg80211_return_bool(ret);
+	return ret;
 }
+EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
+
+bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
+					const u8 *addr, gfp_t gfp)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	bool ret;
+
+	trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
+
+	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
+		    wdev->iftype != NL80211_IFTYPE_P2P_GO &&
+		    wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
+		trace_cfg80211_return_bool(false);
+		return false;
+	}
+	ret = __nl80211_unexpected_frame(dev,
+					 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
+					 addr, gfp);
+	trace_cfg80211_return_bool(ret);
+	return ret;
+}
+EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
 
 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
 		      struct wireless_dev *wdev, u32 nlportid,
···
 	return -ENOBUFS;
 }
 
-void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
-				 struct wireless_dev *wdev, u64 cookie,
-				 const u8 *buf, size_t len, bool ack,
-				 gfp_t gfp)
+void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
+			     const u8 *buf, size_t len, bool ack, gfp_t gfp)
 {
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct net_device *netdev = wdev->netdev;
 	struct sk_buff *msg;
 	void *hdr;
+
+	trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
 
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
···
 	genlmsg_cancel(msg, hdr);
 	nlmsg_free(msg);
 }
+EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
 
-void
-nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
-			     struct net_device *netdev,
-			     enum nl80211_cqm_rssi_threshold_event rssi_event,
-			     gfp_t gfp)
+void cfg80211_cqm_rssi_notify(struct net_device *dev,
+			      enum nl80211_cqm_rssi_threshold_event rssi_event,
+			      gfp_t gfp)
 {
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct sk_buff *msg;
 	struct nlattr *pinfoattr;
 	void *hdr;
+
+	trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
 
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
···
 	}
 
 	if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
-	    nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
+	    nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
 		goto nla_put_failure;
 
 	pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
···
 	genlmsg_cancel(msg, hdr);
 	nlmsg_free(msg);
 }
+EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
 
-void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
-			      struct net_device *netdev, const u8 *bssid,
-			      const u8 *replay_ctr, gfp_t gfp)
+static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
+				     struct net_device *netdev, const u8 *bssid,
+				     const u8 *replay_ctr, gfp_t gfp)
 {
 	struct sk_buff *msg;
 	struct nlattr *rekey_attr;
···
 	nlmsg_free(msg);
 }
 
-void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
-				    struct net_device *netdev, int index,
-				    const u8 *bssid, bool preauth, gfp_t gfp)
+void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
+			       const u8 *replay_ctr, gfp_t gfp)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
+	trace_cfg80211_gtk_rekey_notify(dev, bssid);
+	nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
+}
+EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
+
+static void
+nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
+			       struct net_device *netdev, int index,
+			       const u8 *bssid, bool preauth, gfp_t gfp)
 {
 	struct sk_buff *msg;
 	struct nlattr *attr;
···
 	nlmsg_free(msg);
 }
 
-void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
-			      struct net_device *netdev,
-			      struct cfg80211_chan_def *chandef, gfp_t gfp)
+void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
+				     const u8 *bssid, bool preauth, gfp_t gfp)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
+	trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
+	nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
+}
+EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
+
+static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
+				     struct net_device *netdev,
+				     struct cfg80211_chan_def *chandef,
+				     gfp_t gfp)
 {
 	struct sk_buff *msg;
 	void *hdr;
···
 	nlmsg_free(msg);
 }
 
-void
-nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
-			    struct net_device *netdev, const u8 *peer,
-			    u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
+void cfg80211_ch_switch_notify(struct net_device *dev,
+			       struct cfg80211_chan_def *chandef)
 {
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
+	trace_cfg80211_ch_switch_notify(dev, chandef);
+
+	wdev_lock(wdev);
+
+	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
+		    wdev->iftype != NL80211_IFTYPE_P2P_GO))
+		goto out;
+
+	wdev->channel = chandef->chan;
+	nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
+out:
+	wdev_unlock(wdev);
+	return;
+}
+EXPORT_SYMBOL(cfg80211_ch_switch_notify);
+
+void cfg80211_cqm_txe_notify(struct net_device *dev,
+			     const u8 *peer, u32 num_packets,
+			     u32 rate, u32 intvl, gfp_t gfp)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct sk_buff *msg;
 	struct nlattr *pinfoattr;
 	void *hdr;
···
 	}
 
 	if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
-	    nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
+	    nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
 	    nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
 		goto nla_put_failure;
 
···
 	genlmsg_cancel(msg, hdr);
 	nlmsg_free(msg);
 }
+EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
 
 void
 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
···
 	nlmsg_free(msg);
 }
 
-void
-nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
-				struct net_device *netdev, const u8 *peer,
-				u32 num_packets, gfp_t gfp)
+void cfg80211_cqm_pktloss_notify(struct net_device *dev,
+				 const u8 *peer, u32 num_packets, gfp_t gfp)
 {
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct sk_buff *msg;
 	struct nlattr *pinfoattr;
 	void *hdr;
+
+	trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
 
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
···
 	}
 
 	if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
-	    nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
+	    nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
 	    nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
 		goto nla_put_failure;
 
···
 	genlmsg_cancel(msg, hdr);
 	nlmsg_free(msg);
 }
+EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
 
 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
 			   u64 cookie, bool acked, gfp_t gfp)
···
 static struct notifier_block nl80211_netlink_notifier = {
 	.notifier_call = nl80211_netlink_notify,
 };
+
+void cfg80211_ft_event(struct net_device *netdev,
+		       struct cfg80211_ft_event_params *ft_event)
+{
+	struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	struct sk_buff *msg;
+	void *hdr;
+	int err;
+
+	trace_cfg80211_ft_event(wiphy, netdev, ft_event);
+
+	if (!ft_event->target_ap)
+		return;
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!msg)
+		return;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+	nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+	nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
+	if (ft_event->ies)
+		nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
+	if (ft_event->ric_ies)
+		nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
+			ft_event->ric_ies);
+
+	err = genlmsg_end(msg, hdr);
+	if (err < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+				nl80211_mlme_mcgrp.id, GFP_KERNEL);
+}
+EXPORT_SYMBOL(cfg80211_ft_event);
 
 /* initialisation/exit functions */
 

net/wireless/nl80211.h

···
 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
 			   struct net_device *netdev,
 			   const u8 *buf, size_t len, gfp_t gfp);
-void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
-				struct net_device *netdev,
-				const u8 *buf, size_t len, gfp_t gfp);
-void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
-				  struct net_device *netdev,
-				  const u8 *buf, size_t len, gfp_t gfp);
 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
 			       struct net_device *netdev,
 			       const u8 *addr, gfp_t gfp);
···
 			       struct net_device *netdev, u16 reason,
 			       const u8 *ie, size_t ie_len, bool from_ap);
 
-void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
-				     struct net_device *netdev,
-				     const u8 *macaddr, const u8* ie, u8 ie_len,
-				     gfp_t gfp);
 void
 nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
 			    struct net_device *netdev, const u8 *addr,
···
 			     struct net_device *netdev, const u8 *bssid,
 			     gfp_t gfp);
 
-void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
-				    struct wireless_dev *wdev, u64 cookie,
-				    struct ieee80211_channel *chan,
-				    unsigned int duration, gfp_t gfp);
-void nl80211_send_remain_on_channel_cancel(
-	struct cfg80211_registered_device *rdev,
-	struct wireless_dev *wdev,
-	u64 cookie, struct ieee80211_channel *chan, gfp_t gfp);
-
-void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
-			    struct net_device *dev, const u8 *mac_addr,
-			    struct station_info *sinfo, gfp_t gfp);
-void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
-				struct net_device *dev, const u8 *mac_addr,
-				gfp_t gfp);
-
-void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
-				    struct net_device *dev, const u8 *mac_addr,
-				    enum nl80211_connect_failed_reason reason,
-				    gfp_t gfp);
-
 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
 		      struct wireless_dev *wdev, u32 nlpid,
 		      int freq, int sig_dbm,
 		      const u8 *buf, size_t len, gfp_t gfp);
-void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
-				 struct wireless_dev *wdev, u64 cookie,
-				 const u8 *buf, size_t len, bool ack,
-				 gfp_t gfp);
-
-void
-nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
-			     struct net_device *netdev,
-			     enum nl80211_cqm_rssi_threshold_event rssi_event,
-			     gfp_t gfp);
 
 void
 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
 		     struct cfg80211_chan_def *chandef,
 		     enum nl80211_radar_event event,
 		     struct net_device *netdev, gfp_t gfp);
-
-void
-nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
-				struct net_device *netdev, const u8 *peer,
-				u32 num_packets, gfp_t gfp);
-
-void
-nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
-			    struct net_device *netdev, const u8 *peer,
-			    u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
-
-void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
-			      struct net_device *netdev, const u8 *bssid,
-			      const u8 *replay_ctr, gfp_t gfp);
-
-void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
-				    struct net_device *netdev, int index,
-				    const u8 *bssid, bool preauth, gfp_t gfp);
-
-void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
-			      struct net_device *dev,
-			      struct cfg80211_chan_def *chandef, gfp_t gfp);
-
-bool nl80211_unexpected_frame(struct net_device *dev,
-			      const u8 *addr, gfp_t gfp);
-bool nl80211_unexpected_4addr_frame(struct net_device *dev,
-				    const u8 *addr, gfp_t gfp);
 
 #endif /* __NET_WIRELESS_NL80211_H */

net/wireless/rdev-ops.h

···
 #include "core.h"
 #include "trace.h"
 
-static inline int rdev_suspend(struct cfg80211_registered_device *rdev)
+static inline int rdev_suspend(struct cfg80211_registered_device *rdev,
+			       struct cfg80211_wowlan *wowlan)
 {
 	int ret;
-	trace_rdev_suspend(&rdev->wiphy, rdev->wowlan);
-	ret = rdev->ops->suspend(&rdev->wiphy, rdev->wowlan);
+	trace_rdev_suspend(&rdev->wiphy, wowlan);
+	ret = rdev->ops->suspend(&rdev->wiphy, wowlan);
 	trace_rdev_return_int(&rdev->wiphy, ret);
 	return ret;
 }
···
 	trace_rdev_return_int(&rdev->wiphy, ret);
 	return ret;
 }
+
+static inline int rdev_update_ft_ies(struct cfg80211_registered_device *rdev,
+				     struct net_device *dev,
+				     struct cfg80211_update_ft_ies_params *ftie)
+{
+	int ret;
+
+	trace_rdev_update_ft_ies(&rdev->wiphy, dev, ftie);
+	ret = rdev->ops->update_ft_ies(&rdev->wiphy, dev, ftie);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
 #endif /* __CFG80211_RDEV_OPS */

net/wireless/reg.c

···
 			NL80211_RRF_NO_IBSS |
 			NL80211_RRF_NO_OFDM),
 		/* IEEE 802.11a, channel 36..48 */
-		REG_RULE(5180-10, 5240+10, 40, 6, 20,
+		REG_RULE(5180-10, 5240+10, 80, 6, 20,
                         NL80211_RRF_PASSIVE_SCAN |
                         NL80211_RRF_NO_IBSS),
 
-		/* NB: 5260 MHz - 5700 MHz requies DFS */
+		/* NB: 5260 MHz - 5700 MHz requires DFS */
 
 		/* IEEE 802.11a, channel 149..165 */
-		REG_RULE(5745-10, 5825+10, 40, 6, 20,
+		REG_RULE(5745-10, 5825+10, 80, 6, 20,
 			NL80211_RRF_PASSIVE_SCAN |
 			NL80211_RRF_NO_IBSS),
 

net/wireless/sme.c

···
 {
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 	struct cfg80211_connect_params *params;
-	const u8 *prev_bssid = NULL;
+	struct cfg80211_assoc_request req = {};
 	int err;
 
 	ASSERT_WDEV_LOCK(wdev);
···
 		BUG_ON(!rdev->ops->assoc);
 		wdev->conn->state = CFG80211_CONN_ASSOCIATING;
 		if (wdev->conn->prev_bssid_valid)
-			prev_bssid = wdev->conn->prev_bssid;
-		err = __cfg80211_mlme_assoc(rdev, wdev->netdev,
-					    params->channel, params->bssid,
-					    prev_bssid,
-					    params->ssid, params->ssid_len,
-					    params->ie, params->ie_len,
-					    params->mfp != NL80211_MFP_NO,
-					    &params->crypto,
-					    params->flags, &params->ht_capa,
-					    &params->ht_capa_mask);
+			req.prev_bssid = wdev->conn->prev_bssid;
+		req.ie = params->ie;
+		req.ie_len = params->ie_len;
+		req.use_mfp = params->mfp != NL80211_MFP_NO;
+		req.crypto = params->crypto;
+		req.flags = params->flags;
+		req.ht_capa = params->ht_capa;
+		req.ht_capa_mask = params->ht_capa_mask;
+		req.vht_capa = params->vht_capa;
+		req.vht_capa_mask = params->vht_capa_mask;
+
+		err = __cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel,
+					    params->bssid, params->ssid,
+					    params->ssid_len, &req);
 		if (err)
 			__cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
 					       NULL, 0,

net/wireless/sysfs.c

···
 	return 0;
 }
 
+static void cfg80211_leave_all(struct cfg80211_registered_device *rdev)
+{
+	struct wireless_dev *wdev;
+
+	list_for_each_entry(wdev, &rdev->wdev_list, list)
+		cfg80211_leave(rdev, wdev);
+}
+
 static int wiphy_suspend(struct device *dev, pm_message_t state)
 {
 	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
···
 
 	rdev->suspend_at = get_seconds();
 
-	if (rdev->ops->suspend) {
-		rtnl_lock();
-		if (rdev->wiphy.registered)
-			ret = rdev_suspend(rdev);
-		rtnl_unlock();
+	rtnl_lock();
+	if (rdev->wiphy.registered) {
+		if (!rdev->wowlan)
+			cfg80211_leave_all(rdev);
+		if (rdev->ops->suspend)
+			ret = rdev_suspend(rdev, rdev->wowlan);
+		if (ret == 1) {
+			/* Driver refuse to configure wowlan */
+			cfg80211_leave_all(rdev);
+			ret = rdev_suspend(rdev, NULL);
+		}
 	}
+	rtnl_unlock();
 
 	return ret;
 }

net/wireless/trace.h

···
 		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->acl_policy)
 );
 
+TRACE_EVENT(rdev_update_ft_ies,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_update_ft_ies_params *ftie),
+	TP_ARGS(wiphy, netdev, ftie),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__field(u16, md)
+		__dynamic_array(u8, ie, ftie->ie_len)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		__entry->md = ftie->md;
+		memcpy(__get_dynamic_array(ie), ftie->ie, ftie->ie_len);
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", md: 0x%x",
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->md)
+);
+
 /*************************************************************
  *	     cfg80211 exported functions traces		     *
  *************************************************************/
···
 			       wakeup->packet_present_len);
 	),
 	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT, WIPHY_PR_ARG, WDEV_PR_ARG)
+);
+
+TRACE_EVENT(cfg80211_ft_event,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+		 struct cfg80211_ft_event_params *ft_event),
+	TP_ARGS(wiphy, netdev, ft_event),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		NETDEV_ENTRY
+		__dynamic_array(u8, ies, ft_event->ies_len)
+		MAC_ENTRY(target_ap)
+		__dynamic_array(u8, ric_ies, ft_event->ric_ies_len)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		NETDEV_ASSIGN;
+		if (ft_event->ies)
+			memcpy(__get_dynamic_array(ies), ft_event->ies,
+			       ft_event->ies_len);
+		MAC_ASSIGN(target_ap, ft_event->target_ap);
+		if (ft_event->ric_ies)
+			memcpy(__get_dynamic_array(ric_ies), ft_event->ric_ies,
+			       ft_event->ric_ies_len);
+	),
+	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", target_ap: " MAC_PR_FMT,
+		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(target_ap))
 );
 
 #endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */