Merge tag 'mac80211-next-for-davem-2016-02-26' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Here's another round of updates for -next:
* big A-MSDU RX performance improvement (avoid linearize of paged RX)
* rfkill changes: cleanups, documentation, platform properties
* basic PBSS support in cfg80211
* MU-MIMO action frame processing support
* BlockAck reordering & duplicate detection offload support
* various cleanups & little fixes
====================

Signed-off-by: David S. Miller <[e-mail]>

Documentation/ABI/obsolete/sysfs-class-rfkill

···
-rfkill - radio frequency (RF) connector kill switch support
-
-For details to this subsystem look at Documentation/rfkill.txt.
-
-What:		/sys/class/rfkill/rfkill[0-9]+/state
-Date:		09-Jul-2007
-KernelVersion	v2.6.22
-Contact:	[e-mail]
-Description: 	Current state of the transmitter.
-		This file is deprecated and scheduled to be removed in 2014,
-		because its not possible to express the 'soft and hard block'
-		state of the rfkill driver.
-Values: 	A numeric value.
-		0: RFKILL_STATE_SOFT_BLOCKED
-			transmitter is turned off by software
-		1: RFKILL_STATE_UNBLOCKED
-			transmitter is (potentially) active
-		2: RFKILL_STATE_HARD_BLOCKED
-			transmitter is forced off by something outside of
-			the driver's control.
-
-What:		/sys/class/rfkill/rfkill[0-9]+/claim
-Date:		09-Jul-2007
-KernelVersion	v2.6.22
-Contact:	[e-mail]
-Description:	This file is deprecated because there no longer is a way to
-		claim just control over a single rfkill instance.
-		This file is scheduled to be removed in 2012.
-Values: 	0: Kernel handles events

Documentation/ABI/removed/sysfs-class-rfkill

···
+rfkill - radio frequency (RF) connector kill switch support
+
+For details to this subsystem look at Documentation/rfkill.txt.
+
+What:		/sys/class/rfkill/rfkill[0-9]+/claim
+Date:		09-Jul-2007
+KernelVersion	v2.6.22
+Contact:	[e-mail]
+Description:	This file was deprecated because there no longer was a way to
+		claim just control over a single rfkill instance.
+		This file was scheduled to be removed in 2012, and was removed
+		in 2016.
+Values: 	0: Kernel handles events

Documentation/ABI/stable/sysfs-class-rfkill

···
 
 For details to this subsystem look at Documentation/rfkill.txt.
 
-For the deprecated /sys/class/rfkill/*/state and
-/sys/class/rfkill/*/claim knobs of this interface look in
-Documentation/ABI/obsolete/sysfs-class-rfkill.
+For the deprecated /sys/class/rfkill/*/claim knobs of this interface look in
+Documentation/ABI/removed/sysfs-class-rfkill.
 
 What: 		/sys/class/rfkill
 Date:		09-Jul-2007
···
 Values: 	A numeric value.
 		0: false
 		1: true
+
+
+What:		/sys/class/rfkill/rfkill[0-9]+/state
+Date:		09-Jul-2007
+KernelVersion	v2.6.22
+Contact:	[e-mail]
+Description: 	Current state of the transmitter.
+		This file was scheduled to be removed in 2014, but due to its
+		large number of users it will be sticking around for a bit
+		longer. Despite it being marked as stabe, the newer "hard" and
+		"soft" interfaces should be preffered, since it is not possible
+		to express the 'soft and hard block' state of the rfkill driver
+		through this interface. There will likely be another attempt to
+		remove it in the future.
+Values: 	A numeric value.
+		0: RFKILL_STATE_SOFT_BLOCKED
+			transmitter is turned off by software
+		1: RFKILL_STATE_UNBLOCKED
+			transmitter is (potentially) active
+		2: RFKILL_STATE_HARD_BLOCKED
+			transmitter is forced off by something outside of
+			the driver's control.
 
 
 What:		/sys/class/rfkill/rfkill[0-9]+/hard

Documentation/networking/mac80211-injection.txt

···
    IEEE80211_RADIOTAP_F_TX_NOACK: frame should be sent without waiting for
 				  an ACK even if it is a unicast frame
 
+ * IEEE80211_RADIOTAP_RATE
+
+   legacy rate for the transmission (only for devices without own rate control)
+
+ * IEEE80211_RADIOTAP_MCS
+
+   HT rate for the transmission (only for devices without own rate control).
+   Also some flags are parsed
+
+   IEEE80211_TX_RC_SHORT_GI: use short guard interval
+   IEEE80211_TX_RC_40_MHZ_WIDTH: send in HT40 mode
+
+ * IEEE80211_RADIOTAP_DATA_RETRIES
+
+   number of retries when either IEEE80211_RADIOTAP_RATE or
+   IEEE80211_RADIOTAP_MCS was used
+
 The injection code can also skip all other currently defined radiotap fields
 facilitating replay of captured radiotap headers directly.
 

Documentation/rfkill.txt

···
 assign the poll_hw_block() callback (then the rfkill core will poll the
 device). Don't do this unless you cannot get the event in any other way.
 
+RFKill provides per-switch LED triggers, which can be used to drive LEDs
+according to the switch state (LED_FULL when blocked, LED_OFF otherwise).
 
 
 5. Userspace support

arch/arm/mach-tegra/board-paz00.c

···
  *
  */
 
+#include <linux/property.h>
 #include <linux/gpio/machine.h>
 #include <linux/platform_device.h>
-#include <linux/rfkill-gpio.h>
 
 #include "board.h"
 
-static struct rfkill_gpio_platform_data wifi_rfkill_platform_data = {
-	.name	= "wifi_rfkill",
-	.type	= RFKILL_TYPE_WLAN,
+static struct property_entry __initdata wifi_rfkill_prop[] = {
+	PROPERTY_ENTRY_STRING("name", "wifi_rfkill"),
+	PROPERTY_ENTRY_STRING("type", "wlan"),
+	{ },
+};
+
+static struct property_set __initdata wifi_rfkill_pset = {
+	.properties = wifi_rfkill_prop,
 };
 
 static struct platform_device wifi_rfkill_device = {
 	.name	= "rfkill_gpio",
 	.id	= -1,
-	.dev	= {
-		.platform_data = &wifi_rfkill_platform_data,
-	},
 };
 
 static struct gpiod_lookup_table wifi_gpio_lookup = {
···
 
 void __init tegra_paz00_wifikill_init(void)
 {
+	platform_device_add_properties(&wifi_rfkill_device, &wifi_rfkill_pset);
 	gpiod_add_lookup_table(&wifi_gpio_lookup);
 	platform_device_register(&wifi_rfkill_device);
 }

drivers/net/wireless/ath/ath10k/mac.c

···
 
 static int ath10k_ampdu_action(struct ieee80211_hw *hw,
 			       struct ieee80211_vif *vif,
-			       enum ieee80211_ampdu_mlme_action action,
-			       struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			       u8 buf_size, bool amsdu)
+			       struct ieee80211_ampdu_params *params)
 {
 	struct ath10k *ar = hw->priv;
 	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
 
 	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ampdu vdev_id %i sta %pM tid %hu action %d\n",
 		   arvif->vdev_id, sta->addr, tid, action);

drivers/net/wireless/ath/ath9k/htc_drv_main.c

···
 
 static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw,
 				  struct ieee80211_vif *vif,
-				  enum ieee80211_ampdu_mlme_action action,
-				  struct ieee80211_sta *sta,
-				  u16 tid, u16 *ssn, u8 buf_size, bool amsdu)
+				  struct ieee80211_ampdu_params *params)
 {
 	struct ath9k_htc_priv *priv = hw->priv;
 	struct ath9k_htc_sta *ista;
 	int ret = 0;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
 
 	mutex_lock(&priv->mutex);
 	ath9k_htc_ps_wakeup(priv);

drivers/net/wireless/ath/ath9k/main.c

···
 
 static int ath9k_ampdu_action(struct ieee80211_hw *hw,
 			      struct ieee80211_vif *vif,
-			      enum ieee80211_ampdu_mlme_action action,
-			      struct ieee80211_sta *sta,
-			      u16 tid, u16 *ssn, u8 buf_size, bool amsdu)
+			      struct ieee80211_ampdu_params *params)
 {
 	struct ath_softc *sc = hw->priv;
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	bool flush = false;
 	int ret = 0;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 
 	mutex_lock(&sc->mutex);
 

drivers/net/wireless/ath/carl9170/main.c

···
 
 static int carl9170_op_ampdu_action(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
-				    enum ieee80211_ampdu_mlme_action action,
-				    struct ieee80211_sta *sta,
-				    u16 tid, u16 *ssn, u8 buf_size, bool amsdu)
+				    struct ieee80211_ampdu_params *params)
 {
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 	struct ar9170 *ar = hw->priv;
 	struct carl9170_sta_info *sta_info = (void *) sta->drv_priv;
 	struct carl9170_sta_tid *tid_info;

drivers/net/wireless/ath/wcn36xx/main.c

···
 
 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
 		    struct ieee80211_vif *vif,
-		    enum ieee80211_ampdu_mlme_action action,
-		    struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-		    u8 buf_size, bool amsdu)
+		    struct ieee80211_ampdu_params *params)
 {
 	struct wcn36xx *wcn = hw->priv;
 	struct wcn36xx_sta *sta_priv = NULL;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 
 	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
 		    action, tid);

drivers/net/wireless/ath/wil6210/cfg80211.c

···
 	if (sme->privacy && !rsn_eid)
 		wil_info(wil, "WSC connection\n");
 
+	if (sme->pbss) {
+		wil_err(wil, "connect - PBSS not yet supported\n");
+		return -EOPNOTSUPP;
+	}
+
 	bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
 			       sme->ssid, sme->ssid_len,
 			       IEEE80211_BSS_TYPE_ESS, IEEE80211_PRIVACY_ANY);
···
 	if (!channel) {
 		wil_err(wil, "AP: No channel???\n");
 		return -EINVAL;
+	}
+
+	if (info->pbss) {
+		wil_err(wil, "AP: PBSS not yet supported\n");
+		return -EOPNOTSUPP;
 	}
 
 	switch (info->hidden_ssid) {

drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c

···
 static int
 brcms_ops_ampdu_action(struct ieee80211_hw *hw,
 		    struct ieee80211_vif *vif,
-		    enum ieee80211_ampdu_mlme_action action,
-		    struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-		    u8 buf_size, bool amsdu)
+		    struct ieee80211_ampdu_params *params)
 {
 	struct brcms_info *wl = hw->priv;
 	struct scb *scb = &wl->wlc->pri_scb;
 	int status;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u8 buf_size = params->buf_size;
 
 	if (WARN_ON(scb->magic != SCB_MAGIC))
 		return -EIDRM;

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

···
 
 int
 il4965_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
-			struct ieee80211_sta *sta, u16 tid, u16 * ssn,
-			u8 buf_size, bool amsdu)
+			struct ieee80211_ampdu_params *params)
 {
 	struct il_priv *il = hw->priv;
 	int ret = -EINVAL;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 
 	D_HT("A-MPDU action on addr %pM tid %d\n", sta->addr, tid);
 

drivers/net/wireless/intel/iwlegacy/4965.h

···
 				struct ieee80211_sta *sta, u32 iv32,
 				u16 *phase1key);
 int il4965_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			    enum ieee80211_ampdu_mlme_action action,
-			    struct ieee80211_sta *sta, u16 tid, u16 * ssn,
-			    u8 buf_size, bool amsdu);
+			    struct ieee80211_ampdu_params *params);
 int il4965_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		       struct ieee80211_sta *sta);
 void

drivers/net/wireless/intel/iwlwifi/dvm/lib.c

···
 	switch (key->cipher) {
 	case WLAN_CIPHER_SUITE_TKIP:
 		if (sta) {
+			u64 pn64;
+
 			tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
 			tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
 
 			rx_p1ks = data->tkip->rx_uni;
 
-			ieee80211_get_key_tx_seq(key, &seq);
-			tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
-			tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
+			pn64 = atomic64_read(&key->tx_pn);
+			tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
+			tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
 
 			ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
 			iwlagn_convert_p1k(p1k, data->tkip->tx.p1k);
···
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
 		if (sta) {
-			u8 *pn = seq.ccmp.pn;
+			u64 pn64;
 
 			aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
 			aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
 
-			ieee80211_get_key_tx_seq(key, &seq);
-			aes_tx_sc->pn = cpu_to_le64(
-					(u64)pn[5] |
-					((u64)pn[4] << 8) |
-					((u64)pn[3] << 16) |
-					((u64)pn[2] << 24) |
-					((u64)pn[1] << 32) |
-					((u64)pn[0] << 40));
+			pn64 = atomic64_read(&key->tx_pn);
+			aes_tx_sc->pn = cpu_to_le64(pn64);
 		} else
 			aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
 

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

···
 
 static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
 				   struct ieee80211_vif *vif,
-				   enum ieee80211_ampdu_mlme_action action,
-				   struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-				   u8 buf_size, bool amsdu)
+				   struct ieee80211_ampdu_params *params)
 {
 	struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 	int ret = -EINVAL;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
+	u8 buf_size = params->buf_size;
 	struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
 
 	IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",

drivers/net/wireless/intel/iwlwifi/mvm/d3.c

···
 		return;
 	case WLAN_CIPHER_SUITE_TKIP:
 		if (sta) {
+			u64 pn64;
+
 			tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
 			tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
 
 			rx_p1ks = data->tkip->rx_uni;
 
-			ieee80211_get_key_tx_seq(key, &seq);
-			tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
-			tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
+			pn64 = atomic64_read(&key->tx_pn);
+			tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
+			tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
 
-			ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
+			ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64),
+						  p1k);
 			iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k);
 
 			memcpy(data->tkip->mic_keys.tx,
···
 		case WLAN_CIPHER_SUITE_TKIP:
 			iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq);
 			iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key);
-			ieee80211_set_key_tx_seq(key, &seq);
+			atomic64_set(&key->tx_pn,
+				     (u64)seq.tkip.iv16 |
+				     ((u64)seq.tkip.iv32 << 16));
 			break;
 		}
 

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

···
 
 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
-				    enum ieee80211_ampdu_mlme_action action,
-				    struct ieee80211_sta *sta, u16 tid,
-				    u16 *ssn, u8 buf_size, bool amsdu)
+				    struct ieee80211_ampdu_params *params)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	int ret;
 	bool tx_agg_ref = false;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
+	u8 buf_size = params->buf_size;
 
 	IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
 		     sta->addr, tid, action);
···
 	switch (key->cipher) {
 	case WLAN_CIPHER_SUITE_TKIP:
 		key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
-		key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+		key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
 		key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;

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

···
 
 	case WLAN_CIPHER_SUITE_TKIP:
 		tx_cmd->sec_ctl = TX_CMD_SEC_TKIP;
+		pn = atomic64_inc_return(&keyconf->tx_pn);
+		ieee80211_tkip_add_iv(crypto_hdr, keyconf, pn);
 		ieee80211_get_tkip_p2k(keyconf, skb_frag, tx_cmd->key);
 		break;
 

drivers/net/wireless/mac80211_hwsim.c

···
 	data->tx_bytes += skb->len;
 	ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
 
-	if (ack && skb->len >= 16) {
-		struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	if (ack && skb->len >= 16)
 		mac80211_hwsim_monitor_ack(channel, hdr->addr2);
-	}
 
 	ieee80211_tx_info_clear_status(txi);
 
···
 
 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif,
-				       enum ieee80211_ampdu_mlme_action action,
-				       struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-				       u8 buf_size, bool amsdu)
+				       struct ieee80211_ampdu_params *params)
 {
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+
 	switch (action) {
 	case IEEE80211_AMPDU_TX_START:
 		ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);

drivers/net/wireless/marvell/mwl8k.c

···
 
 static int
 mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		   enum ieee80211_ampdu_mlme_action action,
-		   struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-		   u8 buf_size, bool amsdu)
+		   struct ieee80211_ampdu_params *params)
 {
-
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
+	u8 buf_size = params->buf_size;
 	int i, rc = 0;
 	struct mwl8k_priv *priv = hw->priv;
 	struct mwl8k_ampdu_stream *stream;

drivers/net/wireless/mediatek/mt7601u/main.c

···
 
 static int
 mt76_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		  enum ieee80211_ampdu_mlme_action action,
-		  struct ieee80211_sta *sta, u16 tid, u16 *ssn, u8 buf_size,
-		  bool amsdu)
+		  struct ieee80211_ampdu_params *params)
 {
 	struct mt7601u_dev *dev = hw->priv;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 	struct mt76_sta *msta = (struct mt76_sta *) sta->drv_priv;
 
 	WARN_ON(msta->wcid.idx > GROUP_WCID(0));

drivers/net/wireless/ralink/rt2x00/rt2800lib.c

···
 EXPORT_SYMBOL_GPL(rt2800_get_tsf);
 
 int rt2800_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
-			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			u8 buf_size, bool amsdu)
+			struct ieee80211_ampdu_params *params)
 {
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
 	struct rt2x00_sta *sta_priv = (struct rt2x00_sta *)sta->drv_priv;
 	int ret = 0;
 

drivers/net/wireless/ralink/rt2x00/rt2800lib.h

···
 		   const struct ieee80211_tx_queue_params *params);
 u64 rt2800_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
 int rt2800_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
-			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			u8 buf_size, bool amsdu);
+			struct ieee80211_ampdu_params *params);
 int rt2800_get_survey(struct ieee80211_hw *hw, int idx,
 		      struct survey_info *survey);
 void rt2800_disable_wpdma(struct rt2x00_dev *rt2x00dev);

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c

···
 
 static int
 rtl8xxxu_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		      enum ieee80211_ampdu_mlme_action action,
-		      struct ieee80211_sta *sta, u16 tid, u16 *ssn, u8 buf_size,
-		      bool amsdu)
+		      struct ieee80211_ampdu_params *params)
 {
 	struct rtl8xxxu_priv *priv = hw->priv;
 	struct device *dev = &priv->udev->dev;
 	u8 ampdu_factor, ampdu_density;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
 
 	switch (action) {
 	case IEEE80211_AMPDU_TX_START:

drivers/net/wireless/realtek/rtlwifi/core.c

···
 
 static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
 			       struct ieee80211_vif *vif,
-			       enum ieee80211_ampdu_mlme_action action,
-			       struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			       u8 buf_size, bool amsdu)
+			       struct ieee80211_ampdu_params *params)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 
 	switch (action) {
 	case IEEE80211_AMPDU_TX_START:

drivers/net/wireless/rsi/rsi_91x_mac80211.c

···
  *				 informs the f/w regarding this.
  * @hw: Pointer to the ieee80211_hw structure.
  * @vif: Pointer to the ieee80211_vif structure.
- * @action: ieee80211_ampdu_mlme_action enum.
- * @sta: Pointer to the ieee80211_sta structure.
- * @tid: Traffic identifier.
- * @ssn: Pointer to ssn value.
- * @buf_size: Buffer size (for kernel version > 2.6.38).
- * @amsdu: is AMSDU in AMPDU allowed
+ * @params: Pointer to A-MPDU action parameters
  *
  * Return: status: 0 on success, negative error code on failure.
  */
 static int rsi_mac80211_ampdu_action(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif,
-				     enum ieee80211_ampdu_mlme_action action,
-				     struct ieee80211_sta *sta,
-				     unsigned short tid,
-				     unsigned short *ssn,
-				     unsigned char buf_size,
-				     bool amsdu)
+				     struct ieee80211_ampdu_params *params)
 {
 	int status = -EOPNOTSUPP;
 	struct rsi_hw *adapter = hw->priv;
 	struct rsi_common *common = adapter->priv;
 	u16 seq_no = 0;
 	u8 ii = 0;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
+	u8 buf_size = params->buf_size;
 
 	for (ii = 0; ii < RSI_MAX_VIFS; ii++) {
 		if (vif == adapter->vifs[ii])

drivers/net/wireless/st/cw1200/sta.c

···
 
 int cw1200_ampdu_action(struct ieee80211_hw *hw,
 			struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
-			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			u8 buf_size, bool amsdu)
+			struct ieee80211_ampdu_params *params)
 {
 	/* Aggregation is implemented fully in firmware,
 	 * including block ack negotiation. Do not allow

drivers/net/wireless/st/cw1200/sta.h

···
 			     u32 changed);
 int cw1200_ampdu_action(struct ieee80211_hw *hw,
 			struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
-			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			u8 buf_size, bool amsdu);
+			struct ieee80211_ampdu_params *params);
 
 void cw1200_suspend_resume(struct cw1200_common *priv,
 			  struct wsm_suspend_resume *arg);

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

···
 
 static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
 				  struct ieee80211_vif *vif,
-				  enum ieee80211_ampdu_mlme_action action,
-				  struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-				  u8 buf_size, bool amsdu)
+				  struct ieee80211_ampdu_params *params)
 {
 	struct wl1271 *wl = hw->priv;
 	struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
 	int ret;
 	u8 hlid, *ba_bitmap;
+	struct ieee80211_sta *sta = params->sta;
+	enum ieee80211_ampdu_mlme_action action = params->action;
+	u16 tid = params->tid;
+	u16 *ssn = &params->ssn;
 
 	wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu action %d tid %d", action,
 		     tid);

drivers/staging/vt6655/rxtx.c

···
 			   struct sk_buff *skb,	u16 payload_len,
 			   struct vnt_mic_hdr *mic_hdr)
 {
-	struct ieee80211_key_seq seq;
+	u64 pn64;
 	u8 *iv = ((u8 *)hdr + ieee80211_get_hdrlen_from_skb(skb));
 
 	/* strip header and icv len from payload */
···
 		mic_hdr->payload_len = cpu_to_be16(payload_len);
 		ether_addr_copy(mic_hdr->mic_addr2, hdr->addr2);
 
-		ieee80211_get_key_tx_seq(tx_key, &seq);
-
-		memcpy(mic_hdr->ccmp_pn, seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
+		pn64 = atomic64_read(&tx_key->tx_pn);
+		mic_hdr->ccmp_pn[5] = pn64;
+		mic_hdr->ccmp_pn[4] = pn64 >> 8;
+		mic_hdr->ccmp_pn[3] = pn64 >> 16;
+		mic_hdr->ccmp_pn[2] = pn64 >> 24;
+		mic_hdr->ccmp_pn[1] = pn64 >> 32;
+		mic_hdr->ccmp_pn[0] = pn64 >> 40;
 
 		if (ieee80211_has_a4(hdr->frame_control))
 			mic_hdr->hlen = cpu_to_be16(28);

drivers/staging/vt6656/rxtx.c

···
 	u16 payload_len, struct vnt_mic_hdr *mic_hdr)
 {
 	struct ieee80211_hdr *hdr = tx_context->hdr;
-	struct ieee80211_key_seq seq;
+	u64 pn64;
 	u8 *iv = ((u8 *)hdr + ieee80211_get_hdrlen_from_skb(skb));
 
 	/* strip header and icv len from payload */
···
 		mic_hdr->payload_len = cpu_to_be16(payload_len);
 		ether_addr_copy(mic_hdr->mic_addr2, hdr->addr2);
 
-		ieee80211_get_key_tx_seq(tx_key, &seq);
-
-		memcpy(mic_hdr->ccmp_pn, seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
+		pn64 = atomic64_read(&tx_key->tx_pn);
+		mic_hdr->ccmp_pn[5] = pn64;
+		mic_hdr->ccmp_pn[4] = pn64 >> 8;
+		mic_hdr->ccmp_pn[3] = pn64 >> 16;
+		mic_hdr->ccmp_pn[2] = pn64 >> 24;
+		mic_hdr->ccmp_pn[1] = pn64 >> 32;
+		mic_hdr->ccmp_pn[0] = pn64 >> 40;
 
 		if (ieee80211_has_a4(hdr->frame_control))
 			mic_hdr->hlen = cpu_to_be16(28);

include/linux/ieee80211.h

···
 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 #define IEEE80211_MAX_FRAME_LEN		2352
 
+/* Maximal size of an A-MSDU */
+#define IEEE80211_MAX_MPDU_LEN_HT_3839		3839
+#define IEEE80211_MAX_MPDU_LEN_HT_7935		7935
+
+#define IEEE80211_MAX_MPDU_LEN_VHT_3895		3895
+#define IEEE80211_MAX_MPDU_LEN_VHT_7991		7991
+#define IEEE80211_MAX_MPDU_LEN_VHT_11454	11454
+
 #define IEEE80211_MAX_SSID_LEN		32
 
 #define IEEE80211_MAX_MESH_ID_LEN	32
···
 };
 
 #define WLAN_SA_QUERY_TR_ID_LEN 2
+#define WLAN_MEMBERSHIP_LEN 8
+#define WLAN_USER_POSITION_LEN 16
 
 /**
  * struct ieee80211_tpc_report_ie
···
 					u8 action_code;
 					u8 operating_mode;
 				} __packed vht_opmode_notif;
+				struct {
+					u8 action_code;
+					u8 membership[WLAN_MEMBERSHIP_LEN];
+					u8 position[WLAN_USER_POSITION_LEN];
+				} __packed vht_group_notif;
 				struct {
 					u8 action_code;
 					u8 dialog_token;
···
 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895			0x00000000
 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991			0x00000001
 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454			0x00000002
+#define IEEE80211_VHT_CAP_MAX_MPDU_MASK				0x00000003
 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ		0x00000004
 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ	0x00000008
 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK			0x0000000C
···
 
 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED	BIT(5)
 #define WLAN_EXT_CAPA8_OPMODE_NOTIF	BIT(6)
+
+/* Defines the maximal number of MSDUs in an A-MSDU. */
+#define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB	BIT(7)
+#define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB	BIT(0)
+
+/*
+ * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
+ * information element
+ */
+#define WLAN_EXT_CAPA9_FTM_INITIATOR	BIT(7)
 
 /* TDLS specific payload type in the LLC/SNAP header */
 #define WLAN_TDLS_SNAP_RFTYPE	0x2

include/linux/rfkill-gpio.h

···
-/*
- * Copyright (c) 2011, NVIDIA Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- */
-
-
-#ifndef __RFKILL_GPIO_H
-#define __RFKILL_GPIO_H
-
-#include <linux/types.h>
-#include <linux/rfkill.h>
-
-/**
- * struct rfkill_gpio_platform_data - platform data for rfkill gpio device.
- * for unused gpio's, the expected value is -1.
- * @name:		name for the gpio rf kill instance
- */
-
-struct rfkill_gpio_platform_data {
-	char			*name;
-	enum rfkill_type	type;
-};
-
-#endif /* __RFKILL_GPIO_H */

include/linux/rfkill.h

···
  *
  * Pause polling -- say transmitter is off for other reasons.
  * NOTE: not necessary for suspend/resume -- in that case the
- * core stops polling anyway
+ * core stops polling anyway (but will also correctly handle
+ * the case of polling having been paused before suspend.)
  */
 void rfkill_pause_polling(struct rfkill *rfkill);
 
···
  * @rfkill: rfkill struct to query
  */
 bool rfkill_blocked(struct rfkill *rfkill);
+
+/**
+ * rfkill_find_type - Helpper for finding rfkill type by name
+ * @name: the name of the type
+ *
+ * Returns enum rfkill_type that conrresponds the name.
+ */
+enum rfkill_type rfkill_find_type(const char *name);
+
 #else /* !RFKILL */
 static inline struct rfkill * __must_check
 rfkill_alloc(const char *name,
···
 {
 	return false;
 }
+
+static inline enum rfkill_type rfkill_find_type(const char *name)
+{
+	return RFKILL_TYPE_ALL;
+}
+
 #endif /* RFKILL || RFKILL_MODULE */
 
 

include/net/cfg80211.h

···
  * @p2p_opp_ps: P2P opportunistic PS
  * @acl: ACL configuration used by the drivers which has support for
  *	MAC address based access control
+ * @pbss: If set, start as a PCP instead of AP. Relevant for DMG
+ *	networks.
  */
 struct cfg80211_ap_settings {
 	struct cfg80211_chan_def chandef;
···
 	u8 p2p_ctwindow;
 	bool p2p_opp_ps;
 	const struct cfg80211_acl_data *acl;
+	bool pbss;
 };
 
 /**
···
  * @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.
+ * @pbss: if set, connect to a PCP instead of AP. Valid for DMG
+ *	networks.
  */
 struct cfg80211_connect_params {
 	struct ieee80211_channel *channel;
···
 	struct ieee80211_ht_cap ht_capa_mask;
 	struct ieee80211_vht_cap vht_capa;
 	struct ieee80211_vht_cap vht_capa_mask;
+	bool pbss;
 };
 
 /**
···
  *	registered for unexpected class 3 frames (AP mode)
  * @conn: (private) cfg80211 software SME connection state machine data
  * @connect_keys: (private) keys to set after connection is established
+ * @conn_bss_type: connecting/connected BSS type
  * @ibss_fixed: (private) IBSS is using fixed BSSID
  * @ibss_dfs_possible: (private) IBSS may change to a DFS channel
  * @event_list: (private) list for internal event processing
···
 	u8 ssid_len, mesh_id_len, mesh_id_up_len;
 	struct cfg80211_conn *conn;
 	struct cfg80211_cached_keys *connect_keys;
+	enum ieee80211_bss_type conn_bss_type;
 
 	struct list_head event_list;
 	spinlock_t event_lock;

include/net/mac80211.h

···
  * Copyright 2006-2007	Jiri Benc <[e-mail]>
  * Copyright 2007-2010	Johannes Berg <[e-mail]>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
- * Copyright (C) 2015 Intel Deutschland GmbH
+ * Copyright (C) 2015 - 2016 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
  *	note that this is only called when it changes after the channel
  *	context had been assigned.
  * @BSS_CHANGED_OCB: OCB join status changed
+ * @BSS_CHANGED_MU_GROUPS: VHT MU-MIMO group id or user position changed
  */
 enum ieee80211_bss_change {
 	BSS_CHANGED_ASSOC		= 1<<0,
···
 	BSS_CHANGED_BEACON_INFO		= 1<<20,
 	BSS_CHANGED_BANDWIDTH		= 1<<21,
 	BSS_CHANGED_OCB                 = 1<<22,
+	BSS_CHANGED_MU_GROUPS		= 1<<23,
 
 	/* when adding here, make sure to change ieee80211_reconfig */
 };
···
 };
 
 /**
+ * struct ieee80211_mu_group_data - STA's VHT MU-MIMO group data
+ *
+ * This structure describes the group id data of VHT MU-MIMO
+ *
+ * @membership: 64 bits array - a bit is set if station is member of the group
+ * @position: 2 bits per group id indicating the position in the group
+ */
+struct ieee80211_mu_group_data {
+	u8 membership[WLAN_MEMBERSHIP_LEN];
+	u8 position[WLAN_USER_POSITION_LEN];
+};
+
+/**
  * struct ieee80211_bss_conf - holds the BSS's changing parameters
  *
  * This structure keeps information about a BSS (and an association
···
  * @enable_beacon: whether beaconing should be enabled or not
  * @chandef: Channel definition for this BSS -- the hardware might be
  *	configured a higher bandwidth than this BSS uses, for example.
+ * @mu_group: VHT MU-MIMO group membership data
  * @ht_operation_mode: HT operation mode like in &struct ieee80211_ht_operation.
  *	This field is only valid when the channel is a wide HT/VHT channel.
  *	Note that with TDLS this can be the case (channel is HT, protection must
···
 	s32 cqm_rssi_thold;
 	u32 cqm_rssi_hyst;
 	struct cfg80211_chan_def chandef;
+	struct ieee80211_mu_group_data mu_group;
 	__be32 arp_addr_list[IEEE80211_BSS_ARP_ADDR_LIST_LEN];
 	int arp_addr_cnt;
 	bool qos;
···
  *	protocol frame (e.g. EAP)
  * @IEEE80211_TX_CTRL_PS_RESPONSE: This frame is a response to a poll
  *	frame (PS-Poll or uAPSD).
+ * @IEEE80211_TX_CTRL_RATE_INJECT: This frame is injected with rate information
  *
  * These flags are used in tx_info->control.flags.
  */
 enum mac80211_tx_control_flags {
 	IEEE80211_TX_CTRL_PORT_CTRL_PROTO	= BIT(0),
 	IEEE80211_TX_CTRL_PS_RESPONSE		= BIT(1),
+	IEEE80211_TX_CTRL_RATE_INJECT		= BIT(2),
 };
 
 /*
···
  * @RX_FLAG_MACTIME_END: The timestamp passed in the RX status (@mactime
  *	field) is valid and contains the time the last symbol of the MPDU
  *	(including FCS) was received.
+ * @RX_FLAG_MACTIME_PLCP_START: The timestamp passed in the RX status (@mactime
+ *	field) is valid and contains the time the SYNC preamble was received.
  * @RX_FLAG_SHORTPRE: Short preamble was used for this frame
  * @RX_FLAG_HT: HT MCS was used and rate_idx is MCS index
  * @RX_FLAG_VHT: VHT MCS was used and rate_index is MCS index
···
  * @RX_FLAG_AMPDU_DELIM_CRC_KNOWN: The delimiter CRC field is known (the CRC
  *	is stored in the @ampdu_delimiter_crc field)
  * @RX_FLAG_LDPC: LDPC was used
+ * @RX_FLAG_ONLY_MONITOR: Report frame only to monitor interfaces without
+ *	processing it in any regular way.
+ *	This is useful if drivers offload some frames but still want to report
+ *	them for sniffing purposes.
+ * @RX_FLAG_SKIP_MONITOR: Process and report frame to all interfaces except
+ *	monitor interfaces.
+ *	This is useful if drivers offload some frames but still want to report
+ *	them for sniffing purposes.
  * @RX_FLAG_STBC_MASK: STBC 2 bit bitmask. 1 - Nss=1, 2 - Nss=2, 3 - Nss=3
  * @RX_FLAG_10MHZ: 10 MHz (half channel) was used
  * @RX_FLAG_5MHZ: 5 MHz (quarter channel) was used
···
 enum mac80211_rx_flags {
 	RX_FLAG_MMIC_ERROR		= BIT(0),
 	RX_FLAG_DECRYPTED		= BIT(1),
+	RX_FLAG_MACTIME_PLCP_START	= BIT(2),
 	RX_FLAG_MMIC_STRIPPED		= BIT(3),
 	RX_FLAG_IV_STRIPPED		= BIT(4),
 	RX_FLAG_FAILED_FCS_CRC		= BIT(5),
···
 	RX_FLAG_HT_GF			= BIT(13),
 	RX_FLAG_AMPDU_DETAILS		= BIT(14),
 	RX_FLAG_PN_VALIDATED		= BIT(15),
-	/* bit 16 free */
+	RX_FLAG_DUP_VALIDATED		= BIT(16),
 	RX_FLAG_AMPDU_LAST_KNOWN	= BIT(17),
 	RX_FLAG_AMPDU_IS_LAST		= BIT(18),
 	RX_FLAG_AMPDU_DELIM_CRC_ERROR	= BIT(19),
···
 	RX_FLAG_MACTIME_END		= BIT(21),
 	RX_FLAG_VHT			= BIT(22),
 	RX_FLAG_LDPC			= BIT(23),
+	RX_FLAG_ONLY_MONITOR		= BIT(24),
+	RX_FLAG_SKIP_MONITOR		= BIT(25),
 	RX_FLAG_STBC_MASK		= BIT(26) | BIT(27),
 	RX_FLAG_10MHZ			= BIT(28),
 	RX_FLAG_5MHZ			= BIT(29),
···
  * @RX_VHT_FLAG_160MHZ: 160 MHz was used
  * @RX_VHT_FLAG_BF: packet was beamformed
  */
+
 enum mac80211_rx_vht_flags {
 	RX_VHT_FLAG_80MHZ		= BIT(0),
 	RX_VHT_FLAG_160MHZ		= BIT(1),
···
  *	it but can store it and pass it back to the driver for synchronisation
  * @band: the active band when this frame was received
  * @freq: frequency the radio was tuned to when receiving this frame, in MHz
+ *	This field must be set for management frames, but isn't strictly needed
+ *	for data (other) frames - for those it only affects radiotap reporting.
  * @signal: signal strength when receiving this frame, either in dBm, in dB or
  *	unspecified depending on the hardware capabilities flags
  *	@IEEE80211_HW_SIGNAL_*
···
  * @csa_active: marks whether a channel switch is going on. Internally it is
  *	write-protected by sdata_lock and local->mtx so holding either is fine
  *	for read access.
+ * @mu_mimo_owner: indicates interface owns MU-MIMO capability
  * @driver_flags: flags/capabilities the driver has for this interface,
  *	these need to be set (or cleared) when the interface is added
  *	or, if supported by the driver, the interface type is changed
···
 	u8 addr[ETH_ALEN];
 	bool p2p;
 	bool csa_active;
+	bool mu_mimo_owner;
 
 	u8 cab_queue;
 	u8 hw_queue[IEEE80211_NUM_ACS];
···
  *	wants to be given when a frame is transmitted and needs to be
  *	encrypted in hardware.
  * @cipher: The key's cipher suite selector.
- * @tx_pn: PN used for TX on non-TKIP keys, may be used by the driver
- *	as well if it needs to do software PN assignment by itself
- *	(e.g. due to TSO)
+ * @tx_pn: PN used for TX keys, may be used by the driver as well if it
+ *	needs to do software PN assignment by itself (e.g. due to TSO)
  * @flags: key flags, see &enum ieee80211_key_flags.
  * @keyidx: the key index (0-3)
  * @keylen: key material length
···
 };
 
 #define IEEE80211_MAX_PN_LEN	16
+
+#define TKIP_PN_TO_IV16(pn) ((u16)(pn & 0xffff))
+#define TKIP_PN_TO_IV32(pn) ((u32)((pn >> 16) & 0xffffffff))
 
 /**
  * struct ieee80211_key_seq - key sequence counter
···
  * @tdls_initiator: indicates the STA is an initiator of the TDLS link. Only
  *	valid if the STA is a TDLS peer in the first place.
  * @mfp: indicates whether the STA uses management frame protection or not.
+ * @max_amsdu_subframes: indicates the maximal number of MSDUs in a single
+ *	A-MSDU. Taken from the Extended Capabilities element. 0 means
+ *	unlimited.
+ * @max_amsdu_len: indicates the maximal length of an A-MSDU in bytes. This
+ *	field is always valid for packets with a VHT preamble. For packets
+ *	with a HT preamble, additional limits apply:
+ *		+ If the skb is transmitted as part of a BA agreement, the
+ *		  A-MSDU maximal size is min(max_amsdu_len, 4065) bytes.
+ *		+ If the skb is not part of a BA aggreement, the A-MSDU maximal
+ *		  size is min(max_amsdu_len, 7935) bytes.
+ *	Both additional HT limits must be enforced by the low level driver.
+ *	This is defined by the spec (IEEE 802.11-2012 section 8.3.2.2 NOTE 2).
  * @txq: per-TID data TX queues (if driver uses the TXQ abstraction)
  */
 struct ieee80211_sta {
···
 	bool tdls;
 	bool tdls_initiator;
 	bool mfp;
+	u8 max_amsdu_subframes;
+	u16 max_amsdu_len;
 
 	struct ieee80211_txq *txq[IEEE80211_NUM_TIDS];
 
···
  *	by just its MAC address; this prevents, for example, the same station
  *	from connecting to two virtual AP interfaces at the same time.
  *
+ * @IEEE80211_HW_SUPPORTS_REORDERING_BUFFER: Hardware (or driver) manages the
+ *	reordering buffer internally, guaranteeing mac80211 receives frames in
+ *	order and does not need to manage its own reorder buffer or BA session
+ *	timeout.
+ *
  * @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays
  */
 enum ieee80211_hw_flags {
···
 	IEEE80211_HW_SUPPORTS_AMSDU_IN_AMPDU,
 	IEEE80211_HW_BEACON_TX_STATUS,
 	IEEE80211_HW_NEEDS_UNIQUE_STA_ADDR,
+	IEEE80211_HW_SUPPORTS_REORDERING_BUFFER,
 
 	/* keep last, obviously */
 	NUM_IEEE80211_HW_FLAGS
···
  * @hw: the &struct ieee80211_hw to set the MAC address for
  * @addr: the address to set
  */
-static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr)
+static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, const u8 *addr)
 {
 	memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN);
 }
···
 };
 
 /**
+ * struct ieee80211_ampdu_params - AMPDU action parameters
+ *
+ * @action: the ampdu action, value from %ieee80211_ampdu_mlme_action.
+ * @sta: peer of this AMPDU session
+ * @tid: tid of the BA session
+ * @ssn: start sequence number of the session. TX/RX_STOP can pass 0. When
+ *	action is set to %IEEE80211_AMPDU_RX_START the driver passes back the
+ *	actual ssn value used to start the session and writes the value here.
+ * @buf_size: reorder buffer size  (number of subframes). Valid only when the
+ *	action is set to %IEEE80211_AMPDU_RX_START or
+ *	%IEEE80211_AMPDU_TX_OPERATIONAL
+ * @amsdu: indicates the peer's ability to receive A-MSDU within A-MPDU.
+ *	valid when the action is set to %IEEE80211_AMPDU_TX_OPERATIONAL
+ * @timeout: BA session timeout. Valid only when the action is set to
+ *	%IEEE80211_AMPDU_RX_START
+ */
+struct ieee80211_ampdu_params {
+	enum ieee80211_ampdu_mlme_action action;
+	struct ieee80211_sta *sta;
+	u16 tid;
+	u16 ssn;
+	u8 buf_size;
+	bool amsdu;
+	u16 timeout;
+};
+
+/**
  * enum ieee80211_frame_release_type - frame release reason
  * @IEEE80211_FRAME_RELEASE_PSPOLL: frame released for PS-Poll
  * @IEEE80211_FRAME_RELEASE_UAPSD: frame(s) released due to
···
  * @ampdu_action: Perform a certain A-MPDU action
  * 	The RA/TID combination determines the destination and TID we want
  * 	the ampdu action to be performed for. The action is defined through
- * 	ieee80211_ampdu_mlme_action. Starting sequence number (@ssn)
- * 	is the first frame we expect to perform the action on. Notice
- * 	that TX/RX_STOP can pass NULL for this parameter.
- *	The @buf_size parameter is only valid when the action is set to
- *	%IEEE80211_AMPDU_TX_OPERATIONAL and indicates the peer's reorder
- *	buffer size (number of subframes) for this session -- the driver
- *	may neither send aggregates containing more subframes than this
+ *	ieee80211_ampdu_mlme_action.
+ *	When the action is set to %IEEE80211_AMPDU_TX_OPERATIONAL the driver
+ *	may neither send aggregates containing more subframes than @buf_size
  *	nor send aggregates in a way that lost frames would exceed the
  *	buffer size. If just limiting the aggregate size, this would be
  *	possible with a buf_size of 8:
···
  *	buffer size of 8. Correct ways to retransmit #1 would be:
  *	 - TX:       1 or 18 or 81
  *	Even "189" would be wrong since 1 could be lost again.
- *	The @amsdu parameter is valid when the action is set to
- *	%IEEE80211_AMPDU_TX_OPERATIONAL and indicates the peer's ability
- *	to receive A-MSDU within A-MPDU.
  *
  *	Returns a negative error code on failure.
  *	The callback can sleep.
···
 	int (*tx_last_beacon)(struct ieee80211_hw *hw);
 	int (*ampdu_action)(struct ieee80211_hw *hw,
 			    struct ieee80211_vif *vif,
-			    enum ieee80211_ampdu_mlme_action action,
-			    struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			    u8 buf_size, bool amsdu);
+			    struct ieee80211_ampdu_params *params);
 	int (*get_survey)(struct ieee80211_hw *hw, int idx,
 		struct survey_info *survey);
 	void (*rfkill_poll)(struct ieee80211_hw *hw);
···
 			    struct sk_buff *skb, u8 *p2k);
 
 /**
- * ieee80211_get_key_tx_seq - get key TX sequence counter
+ * ieee80211_tkip_add_iv - write TKIP IV and Ext. IV to pos
  *
+ * @pos: start of crypto header
  * @keyconf: the parameter passed with the set key
- * @seq: buffer to receive the sequence data
+ * @pn: PN to add
  *
- * This function allows a driver to retrieve the current TX IV/PN
- * for the given key. It must not be called if IV generation is
- * offloaded to the device.
+ * Returns: pointer to the octet following IVs (i.e. beginning of
+ * the packet payload)
  *
- * Note that this function may only be called when no TX processing
- * can be done concurrently, for example when queues are stopped
- * and the stop has been synchronized.
+ * This function writes the tkip IV value to pos (which should
+ * point to the crypto header)
  */
-void ieee80211_get_key_tx_seq(struct ieee80211_key_conf *keyconf,
-			      struct ieee80211_key_seq *seq);
+u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key_conf *keyconf, u64 pn);
 
 /**
  * ieee80211_get_key_rx_seq - get key RX sequence counter
···
  */
 void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf,
 			      int tid, struct ieee80211_key_seq *seq);
-
-/**
- * ieee80211_set_key_tx_seq - set key TX sequence counter
- *
- * @keyconf: the parameter passed with the set key
- * @seq: new sequence data
- *
- * This function allows a driver to set the current TX IV/PNs for the
- * given key. This is useful when resuming from WoWLAN sleep and the
- * device may have transmitted frames using the PTK, e.g. replies to
- * ARP requests.
- *
- * Note that this function may only be called when no TX processing
- * can be done concurrently.
- */
-void ieee80211_set_key_tx_seq(struct ieee80211_key_conf *keyconf,
-			      struct ieee80211_key_seq *seq);
 
 /**
  * ieee80211_set_key_rx_seq - set key RX sequence counter
···
 				  const u8 *addr);
 
 /**
+ * ieee80211_mark_rx_ba_filtered_frames - move RX BA window and mark filtered
+ * @pubsta: station struct
+ * @tid: the session's TID
+ * @ssn: starting sequence number of the bitmap, all frames before this are
+ *	assumed to be out of the window after the call
+ * @filtered: bitmap of filtered frames, BIT(0) is the @ssn entry etc.
+ * @received_mpdus: number of received mpdus in firmware
+ *
+ * This function moves the BA window and releases all frames before @ssn, and
+ * marks frames marked in the bitmap as having been filtered. Afterwards, it
+ * checks if any frames in the window starting from @ssn can now be released
+ * (in case they were only waiting for frames that were filtered.)
+ */
+void ieee80211_mark_rx_ba_filtered_frames(struct ieee80211_sta *pubsta, u8 tid,
+					  u16 ssn, u64 filtered,
+					  u16 received_mpdus);
+
+/**
  * ieee80211_send_bar - send a BlockAckReq frame
  *
  * can be used to flush pending frames from the peer's aggregation reorder
···
 	return ieee80211_iftype_p2p(vif->type, vif->p2p);
 }
 
+/**
+ * ieee80211_update_mu_groups - set the VHT MU-MIMO groud data
+ *
+ * @vif: the specified virtual interface
+ * @membership: 64 bits array - a bit is set if station is member of the group
+ * @position: 2 bits per group id indicating the position in the group
+ *
+ * Note: This function assumes that the given vif is valid and the position and
+ * membership data is of the correct size and are in the same byte order as the
+ * matching GroupId management frame.
+ * Calls to this function need to be serialized with RX path.
+ */
+void ieee80211_update_mu_groups(struct ieee80211_vif *vif,
+				const u8 *membership, const u8 *position);
+
 void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif,
 				   int rssi_min_thold,
 				   int rssi_max_thold);
···
  */
 struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw,
 				     struct ieee80211_txq *txq);
+
+/**
+ * ieee80211_txq_get_depth - get pending frame/byte count of given txq
+ *
+ * The values are not guaranteed to be coherent with regard to each other, i.e.
+ * txq state can change half-way of this function and the caller may end up
+ * with "new" frame_cnt and "old" byte_cnt or vice-versa.
+ *
+ * @txq: pointer obtained from station or virtual interface
+ * @frame_cnt: pointer to store frame count
+ * @byte_cnt: pointer to store byte count
+ */
+void ieee80211_txq_get_depth(struct ieee80211_txq *txq,
+			     unsigned long *frame_cnt,
+			     unsigned long *byte_cnt);
 #endif /* MAC80211_H */

include/uapi/linux/nl80211.h

···
  *	underlying device supports these minimal RRM features:
  *		%NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES,
  *		%NL80211_FEATURE_QUIET,
+ *	Or, if global RRM is supported, see:
+ *		%NL80211_EXT_FEATURE_RRM
  *	If this flag is used, driver must add the Power Capabilities IE to the
  *	association request. In addition, it must also set the RRM capability
  *	flag in the association request's Capability Info field.
···
  *	thus it must not specify the number of iterations, only the interval
  *	between scans. The scan plans are executed sequentially.
  *	Each scan plan is a nested attribute of &enum nl80211_sched_scan_plan.
+ * @NL80211_ATTR_PBSS: flag attribute. If set it means operate
+ *	in a PBSS. Specified in %NL80211_CMD_CONNECT to request
+ *	connecting to a PCP, and in %NL80211_CMD_START_AP to start
+ *	a PCP instead of AP. Relevant for DMG networks only.
  *
  * @NUM_NL80211_ATTR: total number of nl80211_attrs available
  * @NL80211_ATTR_MAX: highest attribute number currently defined
···
 	NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
 	NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
 	NL80211_ATTR_SCHED_SCAN_PLANS,
+
+	NL80211_ATTR_PBSS,
 
 	/* add attributes here, update the policy in nl80211.c */
 
···
 /**
  * enum nl80211_ext_feature_index - bit index of extended features.
  * @NL80211_EXT_FEATURE_VHT_IBSS: This driver supports IBSS with VHT datarates.
+ * @NL80211_EXT_FEATURE_RRM: This driver supports RRM. When featured, user can
+ *	can request to use RRM (see %NL80211_ATTR_USE_RRM) with
+ *	%NL80211_CMD_ASSOCIATE and %NL80211_CMD_CONNECT requests, which will set
+ *	the ASSOC_REQ_USE_RRM flag in the association request even if
+ *	NL80211_FEATURE_QUIET is not advertized.
  *
  * @NUM_NL80211_EXT_FEATURES: number of extended features.
  * @MAX_NL80211_EXT_FEATURES: highest extended feature index.
  */
 enum nl80211_ext_feature_index {
 	NL80211_EXT_FEATURE_VHT_IBSS,
+	NL80211_EXT_FEATURE_RRM,
 
 	/* add new features before the definition below */
 	NUM_NL80211_EXT_FEATURES,

include/uapi/linux/rfkill.h

···
  * @RFKILL_OP_DEL: a device was removed
  * @RFKILL_OP_CHANGE: a device's state changed -- userspace changes one device
  * @RFKILL_OP_CHANGE_ALL: userspace changes all devices (of a type, or all)
+ *	into a state, also updating the default state used for devices that
+ *	are hot-plugged later.
  */
 enum rfkill_operation {
 	RFKILL_OP_ADD = 0,

net/mac80211/agg-rx.c

···
  * Copyright 2006-2007	Jiri Benc <[e-mail]>
  * Copyright 2007, Michael Wu <[e-mail]>
  * Copyright 2007-2010, Intel Corporation
+ * Copyright(c) 2015 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
 {
 	struct ieee80211_local *local = sta->local;
 	struct tid_ampdu_rx *tid_rx;
+	struct ieee80211_ampdu_params params = {
+		.sta = &sta->sta,
+		.action = IEEE80211_AMPDU_RX_STOP,
+		.tid = tid,
+		.amsdu = false,
+		.timeout = 0,
+		.ssn = 0,
+	};
 
 	lockdep_assert_held(&sta->ampdu_mlme.mtx);
 
 	tid_rx = rcu_dereference_protected(sta->ampdu_mlme.tid_rx[tid],
 					lockdep_is_held(&sta->ampdu_mlme.mtx));
 
-	if (!tid_rx)
+	if (!test_bit(tid, sta->ampdu_mlme.agg_session_valid))
 		return;
 
 	RCU_INIT_POINTER(sta->ampdu_mlme.tid_rx[tid], NULL);
+	__clear_bit(tid, sta->ampdu_mlme.agg_session_valid);
 
 	ht_dbg(sta->sdata,
 	       "Rx BA session stop requested for %pM tid %u %s reason: %d\n",
···
 	       initiator == WLAN_BACK_RECIPIENT ? "recipient" : "inititator",
 	       (int)reason);
 
-	if (drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_STOP,
-			     &sta->sta, tid, NULL, 0, false))
+	if (drv_ampdu_action(local, sta->sdata, &params))
 		sdata_info(sta->sdata,
 			   "HW problem - can not stop rx aggregation for %pM tid %d\n",
 			   sta->sta.addr, tid);
···
 	if (initiator == WLAN_BACK_RECIPIENT && tx)
 		ieee80211_send_delba(sta->sdata, sta->sta.addr,
 				     tid, WLAN_BACK_RECIPIENT, reason);
+
+	/*
+	 * return here in case tid_rx is not assigned - which will happen if
+	 * IEEE80211_HW_SUPPORTS_REORDERING_BUFFER is set.
+	 */
+	if (!tid_rx)
+		return;
 
 	del_timer_sync(&tid_rx->session_timer);
 
···
 {
 	struct ieee80211_local *local = sta->sdata->local;
 	struct tid_ampdu_rx *tid_agg_rx;
+	struct ieee80211_ampdu_params params = {
+		.sta = &sta->sta,
+		.action = IEEE80211_AMPDU_RX_START,
+		.tid = tid,
+		.amsdu = false,
+		.timeout = timeout,
+		.ssn = start_seq_num,
+	};
+
 	int i, ret = -EOPNOTSUPP;
 	u16 status = WLAN_STATUS_REQUEST_DECLINED;
 
···
 	/* make sure the size doesn't exceed the maximum supported by the hw */
 	if (buf_size > local->hw.max_rx_aggregation_subframes)
 		buf_size = local->hw.max_rx_aggregation_subframes;
+	params.buf_size = buf_size;
 
 	/* examine state machine */
 	mutex_lock(&sta->ampdu_mlme.mtx);
 
-	if (sta->ampdu_mlme.tid_rx[tid]) {
+	if (test_bit(tid, sta->ampdu_mlme.agg_session_valid)) {
 		ht_dbg_ratelimited(sta->sdata,
 				   "unexpected AddBA Req from %pM on tid %u\n",
 				   sta->sta.addr, tid);
···
 		___ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
 						WLAN_STATUS_UNSPECIFIED_QOS,
 						false);
+	}
+
+	if (ieee80211_hw_check(&local->hw, SUPPORTS_REORDERING_BUFFER)) {
+		ret = drv_ampdu_action(local, sta->sdata, &params);
+		ht_dbg(sta->sdata,
+		       "Rx A-MPDU request on %pM tid %d result %d\n",
+		       sta->sta.addr, tid, ret);
+		if (!ret)
+			status = WLAN_STATUS_SUCCESS;
+		goto end;
 	}
 
 	/* prepare A-MPDU MLME for Rx aggregation */
···
 	for (i = 0; i < buf_size; i++)
 		__skb_queue_head_init(&tid_agg_rx->reorder_buf[i]);
 
-	ret = drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_START,
-			       &sta->sta, tid, &start_seq_num, 0, false);
+	ret = drv_ampdu_action(local, sta->sdata, &params);
 	ht_dbg(sta->sdata, "Rx A-MPDU request on %pM tid %d result %d\n",
 	       sta->sta.addr, tid, ret);
 	if (ret) {
···
 	tid_agg_rx->timeout = timeout;
 	tid_agg_rx->stored_mpdu_num = 0;
 	tid_agg_rx->auto_seq = auto_seq;
+	tid_agg_rx->reorder_buf_filtered = 0;
 	status = WLAN_STATUS_SUCCESS;
 
 	/* activate it for RX */
···
 	}
 
 end:
+	if (status == WLAN_STATUS_SUCCESS)
+		__set_bit(tid, sta->ampdu_mlme.agg_session_valid);
 	mutex_unlock(&sta->ampdu_mlme.mtx);
 
 end_no_lock:

net/mac80211/agg-tx.c

···
  * Copyright 2006-2007	Jiri Benc <[e-mail]>
  * Copyright 2007, Michael Wu <[e-mail]>
  * Copyright 2007-2010, Intel Corporation
+ * Copyright(c) 2015 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
 {
 	struct ieee80211_local *local = sta->local;
 	struct tid_ampdu_tx *tid_tx;
-	enum ieee80211_ampdu_mlme_action action;
+	struct ieee80211_ampdu_params params = {
+		.sta = &sta->sta,
+		.tid = tid,
+		.buf_size = 0,
+		.amsdu = false,
+		.timeout = 0,
+		.ssn = 0,
+	};
 	int ret;
 
 	lockdep_assert_held(&sta->ampdu_mlme.mtx);
···
 	case AGG_STOP_DECLINED:
 	case AGG_STOP_LOCAL_REQUEST:
 	case AGG_STOP_PEER_REQUEST:
-		action = IEEE80211_AMPDU_TX_STOP_CONT;
+		params.action = IEEE80211_AMPDU_TX_STOP_CONT;
 		break;
 	case AGG_STOP_DESTROY_STA:
-		action = IEEE80211_AMPDU_TX_STOP_FLUSH;
+		params.action = IEEE80211_AMPDU_TX_STOP_FLUSH;
 		break;
 	default:
 		WARN_ON_ONCE(1);
···
 		spin_unlock_bh(&sta->lock);
 		if (reason != AGG_STOP_DESTROY_STA)
 			return -EALREADY;
-		ret = drv_ampdu_action(local, sta->sdata,
-				       IEEE80211_AMPDU_TX_STOP_FLUSH_CONT,
-				       &sta->sta, tid, NULL, 0, false);
+		params.action = IEEE80211_AMPDU_TX_STOP_FLUSH_CONT;
+		ret = drv_ampdu_action(local, sta->sdata, &params);
 		WARN_ON_ONCE(ret);
 		return 0;
 	}
···
 					WLAN_BACK_INITIATOR;
 	tid_tx->tx_stop = reason == AGG_STOP_LOCAL_REQUEST;
 
-	ret = drv_ampdu_action(local, sta->sdata, action,
-			       &sta->sta, tid, NULL, 0, false);
+	ret = drv_ampdu_action(local, sta->sdata, &params);
 
 	/* HW shall not deny going back to legacy */
 	if (WARN_ON(ret)) {
···
 	struct tid_ampdu_tx *tid_tx;
 	struct ieee80211_local *local = sta->local;
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
-	u16 start_seq_num;
+	struct ieee80211_ampdu_params params = {
+		.sta = &sta->sta,
+		.action = IEEE80211_AMPDU_TX_START,
+		.tid = tid,
+		.buf_size = 0,
+		.amsdu = false,
+		.timeout = 0,
+	};
 	int ret;
 
 	tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
···
 	 */
 	synchronize_net();
 
-	start_seq_num = sta->tid_seq[tid] >> 4;
-
-	ret = drv_ampdu_action(local, sdata, IEEE80211_AMPDU_TX_START,
-			       &sta->sta, tid, &start_seq_num, 0, false);
+	params.ssn = sta->tid_seq[tid] >> 4;
+	ret = drv_ampdu_action(local, sdata, &params);
 	if (ret) {
 		ht_dbg(sdata,
 		       "BA request denied - HW unavailable for %pM tid %d\n",
···
 
 	/* send AddBA request */
 	ieee80211_send_addba_request(sdata, sta->sta.addr, tid,
-				     tid_tx->dialog_token, start_seq_num,
+				     tid_tx->dialog_token, params.ssn,
 				     IEEE80211_MAX_AMPDU_BUF,
 				     tid_tx->timeout);
 }
···
 					 struct sta_info *sta, u16 tid)
 {
 	struct tid_ampdu_tx *tid_tx;
+	struct ieee80211_ampdu_params params = {
+		.sta = &sta->sta,
+		.action = IEEE80211_AMPDU_TX_OPERATIONAL,
+		.tid = tid,
+		.timeout = 0,
+		.ssn = 0,
+	};
 
 	lockdep_assert_held(&sta->ampdu_mlme.mtx);
 
 	tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
+	params.buf_size = tid_tx->buf_size;
+	params.amsdu = tid_tx->amsdu;
 
 	ht_dbg(sta->sdata, "Aggregation is on for %pM tid %d\n",
 	       sta->sta.addr, tid);
 
-	drv_ampdu_action(local, sta->sdata,
-			 IEEE80211_AMPDU_TX_OPERATIONAL,
-			 &sta->sta, tid, NULL, tid_tx->buf_size,
-			 tid_tx->amsdu);
+	drv_ampdu_action(local, sta->sdata, &params);
 
 	/*
 	 * synchronize with TX path, while splicing the TX path

net/mac80211/cfg.c

···
 
 	switch (key->conf.cipher) {
 	case WLAN_CIPHER_SUITE_TKIP:
-		iv32 = key->u.tkip.tx.iv32;
-		iv16 = key->u.tkip.tx.iv16;
+		pn64 = atomic64_read(&key->conf.tx_pn);
+		iv32 = TKIP_PN_TO_IV32(pn64);
+		iv16 = TKIP_PN_TO_IV16(pn64);
 
 		if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 		    !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
···
 		sta->sta.max_sp = params->max_sp;
 	}
 
+	/* The sender might not have sent the last bit, consider it to be 0 */
+	if (params->ext_capab_len >= 8) {
+		u8 val = (params->ext_capab[7] &
+			  WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
+
+		/* we did get all the bits, take the MSB as well */
+		if (params->ext_capab_len >= 9) {
+			u8 val_msb = params->ext_capab[8] &
+				WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
+			val_msb <<= 1;
+			val |= val_msb;
+		}
+
+		switch (val) {
+		case 1:
+			sta->sta.max_amsdu_subframes = 32;
+			break;
+		case 2:
+			sta->sta.max_amsdu_subframes = 16;
+			break;
+		case 3:
+			sta->sta.max_amsdu_subframes = 8;
+			break;
+		default:
+			sta->sta.max_amsdu_subframes = 0;
+		}
+	}
+
 	/*
 	 * cfg80211 validates this (1-2007) and allows setting the AID
 	 * only when creating a new station entry
···
 		ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
 						  params->ht_capa, sta);
 
+	/* VHT can override some HT caps such as the A-MSDU max length */
 	if (params->vht_capa)
 		ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
 						    params->vht_capa, sta);

net/mac80211/chan.c

···
 		    !(sta->sdata->bss && sta->sdata->bss == sdata->bss))
 			continue;
 
-		if (!sta->uploaded)
+		if (!sta->uploaded || !test_sta_flag(sta, WLAN_STA_ASSOC))
 			continue;
 
 		max_bw = max(max_bw, ieee80211_get_sta_bw(&sta->sta));

net/mac80211/debugfs.c

···
 	FLAG(SUPPORTS_AMSDU_IN_AMPDU),
 	FLAG(BEACON_TX_STATUS),
 	FLAG(NEEDS_UNIQUE_STA_ADDR),
+	FLAG(SUPPORTS_REORDERING_BUFFER),
 #undef FLAG
 };
 

net/mac80211/debugfs_key.c

···
 		len = scnprintf(buf, sizeof(buf), "\n");
 		break;
 	case WLAN_CIPHER_SUITE_TKIP:
+		pn = atomic64_read(&key->conf.tx_pn);
 		len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
-				key->u.tkip.tx.iv32,
-				key->u.tkip.tx.iv16);
+				TKIP_PN_TO_IV32(pn),
+				TKIP_PN_TO_IV16(pn));
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
 	case WLAN_CIPHER_SUITE_CCMP_256:

net/mac80211/driver-ops.c

···
 
 int drv_ampdu_action(struct ieee80211_local *local,
 		     struct ieee80211_sub_if_data *sdata,
-		     enum ieee80211_ampdu_mlme_action action,
-		     struct ieee80211_sta *sta, u16 tid,
-		     u16 *ssn, u8 buf_size, bool amsdu)
+		     struct ieee80211_ampdu_params *params)
 {
 	int ret = -EOPNOTSUPP;
 
···
 	if (!check_sdata_in_driver(sdata))
 		return -EIO;
 
-	trace_drv_ampdu_action(local, sdata, action, sta, tid,
-			       ssn, buf_size, amsdu);
+	trace_drv_ampdu_action(local, sdata, params);
 
 	if (local->ops->ampdu_action)
-		ret = local->ops->ampdu_action(&local->hw, &sdata->vif, action,
-					       sta, tid, ssn, buf_size, amsdu);
+		ret = local->ops->ampdu_action(&local->hw, &sdata->vif, params);
 
 	trace_drv_return_int(local, ret);
 

net/mac80211/driver-ops.h

···
 
 int drv_ampdu_action(struct ieee80211_local *local,
 		     struct ieee80211_sub_if_data *sdata,
-		     enum ieee80211_ampdu_mlme_action action,
-		     struct ieee80211_sta *sta, u16 tid,
-		     u16 *ssn, u8 buf_size, bool amsdu);
+		     struct ieee80211_ampdu_params *params);
 
 static inline int drv_get_survey(struct ieee80211_local *local, int idx,
 				struct survey_info *survey)

net/mac80211/ht.c

···
 	/* set Rx highest rate */
 	ht_cap.mcs.rx_highest = ht_cap_ie->mcs.rx_highest;
 
+	if (ht_cap.cap & IEEE80211_HT_CAP_MAX_AMSDU)
+		sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_7935;
+	else
+		sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_3839;
+
  apply:
 	changed = memcmp(&sta->sta.ht_cap, &ht_cap, sizeof(ht_cap));
 

net/mac80211/ibss.c

···
  * Copyright 2007, Michael Wu <[e-mail]>
  * Copyright 2009, Johannes Berg <[e-mail]>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
+ * Copyright(c) 2016 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
 		struct cfg80211_chan_def chandef;
 		enum ieee80211_sta_rx_bandwidth bw = sta->sta.bandwidth;
 
-		ieee80211_ht_oper_to_chandef(channel,
-					     elems->ht_operation,
-					     &chandef);
+		cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
+		ieee80211_chandef_ht_oper(elems->ht_operation, &chandef);
 
 		memcpy(&htcap_ie, elems->ht_cap_elem, sizeof(htcap_ie));
 		rates_updated |= ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
···
 			struct ieee80211_vht_cap cap_ie;
 			struct ieee80211_sta_vht_cap cap = sta->sta.vht_cap;
 
-			ieee80211_vht_oper_to_chandef(channel,
-						      elems->vht_operation,
-						      &chandef);
+			ieee80211_chandef_vht_oper(elems->vht_operation,
+						   &chandef);
 			memcpy(&cap_ie, elems->vht_cap_elem, sizeof(cap_ie));
 			ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
 							    &cap_ie, sta);
···
 
 		sdata_info(sdata, "Trigger new scan to find an IBSS to join\n");
 
-		num = ieee80211_ibss_setup_scan_channels(local->hw.wiphy,
-							 &ifibss->chandef,
-							 channels,
-							 ARRAY_SIZE(channels));
 		scan_width = cfg80211_chandef_to_scan_width(&ifibss->chandef);
-		ieee80211_request_ibss_scan(sdata, ifibss->ssid,
-					    ifibss->ssid_len, channels, num,
-					    scan_width);
+
+		if (ifibss->fixed_channel) {
+			num = ieee80211_ibss_setup_scan_channels(local->hw.wiphy,
+								 &ifibss->chandef,
+								 channels,
+								 ARRAY_SIZE(channels));
+			ieee80211_request_ibss_scan(sdata, ifibss->ssid,
+						    ifibss->ssid_len, channels,
+						    num, scan_width);
+		} else {
+			ieee80211_request_ibss_scan(sdata, ifibss->ssid,
+						    ifibss->ssid_len, NULL,
+						    0, scan_width);
+		}
 	} else {
 		int interval = IEEE80211_SCAN_INTERVAL;
 

net/mac80211/ieee80211_i.h

···
  *	back to wireless media and to the local net stack.
  * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
  * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
- * @IEEE80211_SDATA_MU_MIMO_OWNER: indicates interface owns MU-MIMO capability
  */
 enum ieee80211_sub_if_data_flags {
 	IEEE80211_SDATA_ALLMULTI		= BIT(0),
···
 	IEEE80211_SDATA_DONT_BRIDGE_PACKETS	= BIT(3),
 	IEEE80211_SDATA_DISCONNECT_RESUME	= BIT(4),
 	IEEE80211_SDATA_IN_DRIVER		= BIT(5),
-	IEEE80211_SDATA_MU_MIMO_OWNER		= BIT(6),
 };
 
 /**
···
 struct txq_info {
 	struct sk_buff_head queue;
 	unsigned long flags;
+	unsigned long byte_cnt;
 
 	/* keep last! */
 	struct ieee80211_txq txq;
···
 {
 	WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
 		     status->flag & RX_FLAG_MACTIME_END);
-	return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
+	if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END))
+		return true;
+	/* can't handle HT/VHT preamble yet */
+	if (status->flag & RX_FLAG_MACTIME_PLCP_START &&
+	    !(status->flag & (RX_FLAG_HT | RX_FLAG_VHT)))
+		return true;
+	return false;
 }
 
 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
···
 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
+void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
+				 struct ieee80211_mgmt *mgmt);
 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
                                   struct sta_info *sta, u8 opmode,
 				  enum ieee80211_band band);
···
 	ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
 }
 
-static inline bool ieee80211_rx_reorder_ready(struct sk_buff_head *frames)
-{
-	struct sk_buff *tail = skb_peek_tail(frames);
-	struct ieee80211_rx_status *status;
-
-	if (!tail)
-		return false;
-
-	status = IEEE80211_SKB_RXCB(tail);
-	if (status->flag & RX_FLAG_AMSDU_MORE)
-		return false;
-
-	return true;
-}
 
 extern const int ieee802_1d_to_ac[8];
 
···
 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
 
 /* channel management */
-void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
-				  const struct ieee80211_ht_operation *ht_oper,
-				  struct cfg80211_chan_def *chandef);
-void ieee80211_vht_oper_to_chandef(struct ieee80211_channel *control_chan,
-				   const struct ieee80211_vht_operation *oper,
-				   struct cfg80211_chan_def *chandef);
+bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
+			       struct cfg80211_chan_def *chandef);
+bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper,
+				struct cfg80211_chan_def *chandef);
 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
 
 int __must_check

net/mac80211/iface.c

···
 	if (sdata->vif.txq) {
 		struct txq_info *txqi = to_txq_info(sdata->vif.txq);
 
+		spin_lock_bh(&txqi->queue.lock);
 		ieee80211_purge_tx_queue(&local->hw, &txqi->queue);
+		txqi->byte_cnt = 0;
+		spin_unlock_bh(&txqi->queue.lock);
+
 		atomic_set(&sdata->txqs_len[txqi->txq.ac], 0);
 	}
 
···
 				}
 			}
 			mutex_unlock(&local->sta_mtx);
+		} else if (ieee80211_is_action(mgmt->frame_control) &&
+			   mgmt->u.action.category == WLAN_CATEGORY_VHT) {
+			switch (mgmt->u.action.u.vht_group_notif.action_code) {
+			case WLAN_VHT_ACTION_GROUPID_MGMT:
+				ieee80211_process_mu_groups(sdata, mgmt);
+				break;
+			default:
+				WARN_ON(1);
+				break;
+			}
 		} else if (ieee80211_is_data_qos(mgmt->frame_control)) {
 			struct ieee80211_hdr *hdr = (void *)mgmt;
 			/*

net/mac80211/key.c

···
 }
 EXPORT_SYMBOL_GPL(ieee80211_gtk_rekey_notify);
 
-void ieee80211_get_key_tx_seq(struct ieee80211_key_conf *keyconf,
-			      struct ieee80211_key_seq *seq)
-{
-	struct ieee80211_key *key;
-	u64 pn64;
-
-	if (WARN_ON(!(keyconf->flags & IEEE80211_KEY_FLAG_GENERATE_IV)))
-		return;
-
-	key = container_of(keyconf, struct ieee80211_key, conf);
-
-	switch (key->conf.cipher) {
-	case WLAN_CIPHER_SUITE_TKIP:
-		seq->tkip.iv32 = key->u.tkip.tx.iv32;
-		seq->tkip.iv16 = key->u.tkip.tx.iv16;
-		break;
-	case WLAN_CIPHER_SUITE_CCMP:
-	case WLAN_CIPHER_SUITE_CCMP_256:
-	case WLAN_CIPHER_SUITE_AES_CMAC:
-	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
-		BUILD_BUG_ON(offsetof(typeof(*seq), ccmp) !=
-			     offsetof(typeof(*seq), aes_cmac));
-	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
-	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
-		BUILD_BUG_ON(offsetof(typeof(*seq), ccmp) !=
-			     offsetof(typeof(*seq), aes_gmac));
-	case WLAN_CIPHER_SUITE_GCMP:
-	case WLAN_CIPHER_SUITE_GCMP_256:
-		BUILD_BUG_ON(offsetof(typeof(*seq), ccmp) !=
-			     offsetof(typeof(*seq), gcmp));
-		pn64 = atomic64_read(&key->conf.tx_pn);
-		seq->ccmp.pn[5] = pn64;
-		seq->ccmp.pn[4] = pn64 >> 8;
-		seq->ccmp.pn[3] = pn64 >> 16;
-		seq->ccmp.pn[2] = pn64 >> 24;
-		seq->ccmp.pn[1] = pn64 >> 32;
-		seq->ccmp.pn[0] = pn64 >> 40;
-		break;
-	default:
-		WARN_ON(1);
-	}
-}
-EXPORT_SYMBOL(ieee80211_get_key_tx_seq);
-
 void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf,
 			      int tid, struct ieee80211_key_seq *seq)
 {
···
 	}
 }
 EXPORT_SYMBOL(ieee80211_get_key_rx_seq);
-
-void ieee80211_set_key_tx_seq(struct ieee80211_key_conf *keyconf,
-			      struct ieee80211_key_seq *seq)
-{
-	struct ieee80211_key *key;
-	u64 pn64;
-
-	key = container_of(keyconf, struct ieee80211_key, conf);
-
-	switch (key->conf.cipher) {
-	case WLAN_CIPHER_SUITE_TKIP:
-		key->u.tkip.tx.iv32 = seq->tkip.iv32;
-		key->u.tkip.tx.iv16 = seq->tkip.iv16;
-		break;
-	case WLAN_CIPHER_SUITE_CCMP:
-	case WLAN_CIPHER_SUITE_CCMP_256:
-	case WLAN_CIPHER_SUITE_AES_CMAC:
-	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
-		BUILD_BUG_ON(offsetof(typeof(*seq), ccmp) !=
-			     offsetof(typeof(*seq), aes_cmac));
-	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
-	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
-		BUILD_BUG_ON(offsetof(typeof(*seq), ccmp) !=
-			     offsetof(typeof(*seq), aes_gmac));
-	case WLAN_CIPHER_SUITE_GCMP:
-	case WLAN_CIPHER_SUITE_GCMP_256:
-		BUILD_BUG_ON(offsetof(typeof(*seq), ccmp) !=
-			     offsetof(typeof(*seq), gcmp));
-		pn64 = (u64)seq->ccmp.pn[5] |
-		       ((u64)seq->ccmp.pn[4] << 8) |
-		       ((u64)seq->ccmp.pn[3] << 16) |
-		       ((u64)seq->ccmp.pn[2] << 24) |
-		       ((u64)seq->ccmp.pn[1] << 32) |
-		       ((u64)seq->ccmp.pn[0] << 40);
-		atomic64_set(&key->conf.tx_pn, pn64);
-		break;
-	default:
-		WARN_ON(1);
-		break;
-	}
-}
-EXPORT_SYMBOL_GPL(ieee80211_set_key_tx_seq);
 
 void ieee80211_set_key_rx_seq(struct ieee80211_key_conf *keyconf,
 			      int tid, struct ieee80211_key_seq *seq)

net/mac80211/key.h

···
 };
 
 struct tkip_ctx {
-	u32 iv32;	/* current iv32 */
-	u16 iv16;	/* current iv16 */
 	u16 p1k[5];	/* p1k cache */
 	u32 p1k_iv32;	/* iv32 for which p1k computed */
 	enum ieee80211_internal_tkip_state state;
+};
+
+struct tkip_ctx_rx {
+	struct tkip_ctx ctx;
+	u32 iv32;	/* current iv32 */
+	u16 iv16;	/* current iv16 */
 };
 
 struct ieee80211_key {
···
 			struct tkip_ctx tx;
 
 			/* last received RSC */
-			struct tkip_ctx rx[IEEE80211_NUM_TIDS];
+			struct tkip_ctx_rx rx[IEEE80211_NUM_TIDS];
 
 			/* number of mic failures */
 			u32 mic_failures;

net/mac80211/mesh.c

···
 	if (sdata->vif.bss_conf.basic_rates != basic_rates)
 		return false;
 
-	ieee80211_ht_oper_to_chandef(sdata->vif.bss_conf.chandef.chan,
-				     ie->ht_operation, &sta_chan_def);
-
-	ieee80211_vht_oper_to_chandef(sdata->vif.bss_conf.chandef.chan,
-				      ie->vht_operation, &sta_chan_def);
+	cfg80211_chandef_create(&sta_chan_def, sdata->vif.bss_conf.chandef.chan,
+				NL80211_CHAN_NO_HT);
+	ieee80211_chandef_ht_oper(ie->ht_operation, &sta_chan_def);
+	ieee80211_chandef_vht_oper(ie->vht_operation, &sta_chan_def);
 
 	if (!cfg80211_chandef_compatible(&sdata->vif.bss_conf.chandef,
 					 &sta_chan_def))

net/mac80211/mesh.h

···
  * @copy_node: function to copy nodes of the table
  * @size_order: determines size of the table, there will be 2^size_order hash
  *	buckets
- * @mean_chain_len: maximum average length for the hash buckets' list, if it is
- *	reached, the table will grow
  * @known_gates: list of known mesh gates and their mpaths by the station. The
  * gate's mpath may or may not be resolved and active.
  *
···
 	void (*free_node) (struct hlist_node *p, bool free_leafs);
 	int (*copy_node) (struct hlist_node *p, struct mesh_table *newtbl);
 	int size_order;
-	int mean_chain_len;
 	struct hlist_head *known_gates;
 	spinlock_t gates_lock;
 

net/mac80211/mesh_pathtbl.c

···
 static DEFINE_RWLOCK(pathtbl_resize_lock);
 
 
+static inline struct mesh_table *resize_dereference_paths(
+	struct mesh_table __rcu *table)
+{
+	return rcu_dereference_protected(table,
+					lockdep_is_held(&pathtbl_resize_lock));
+}
+
 static inline struct mesh_table *resize_dereference_mesh_paths(void)
 {
-	return rcu_dereference_protected(mesh_paths,
-		lockdep_is_held(&pathtbl_resize_lock));
+	return resize_dereference_paths(mesh_paths);
 }
 
 static inline struct mesh_table *resize_dereference_mpp_paths(void)
 {
-	return rcu_dereference_protected(mpp_paths,
-		lockdep_is_held(&pathtbl_resize_lock));
+	return resize_dereference_paths(mpp_paths);
 }
 
 /*
···
 	int i;
 
 	if (atomic_read(&oldtbl->entries)
-			< oldtbl->mean_chain_len * (oldtbl->hash_mask + 1))
+			< MEAN_CHAIN_LEN * (oldtbl->hash_mask + 1))
 		return -EAGAIN;
 
 	newtbl->free_node = oldtbl->free_node;
-	newtbl->mean_chain_len = oldtbl->mean_chain_len;
 	newtbl->copy_node = oldtbl->copy_node;
 	newtbl->known_gates = oldtbl->known_gates;
 	atomic_set(&newtbl->entries, atomic_read(&oldtbl->entries));
···
 
 	hlist_add_head_rcu(&new_node->list, bucket);
 	if (atomic_inc_return(&tbl->entries) >=
-	    tbl->mean_chain_len * (tbl->hash_mask + 1))
+	    MEAN_CHAIN_LEN * (tbl->hash_mask + 1))
 		grow = 1;
 
 	mesh_paths_generation++;
···
 
 	hlist_add_head_rcu(&new_node->list, bucket);
 	if (atomic_inc_return(&tbl->entries) >=
-	    tbl->mean_chain_len * (tbl->hash_mask + 1))
+	    MEAN_CHAIN_LEN * (tbl->hash_mask + 1))
 		grow = 1;
 
 	spin_unlock(&tbl->hashwlock[hash_idx]);
···
 	rcu_read_unlock();
 }
 
+static void mpp_flush_by_proxy(struct ieee80211_sub_if_data *sdata,
+			       const u8 *proxy)
+{
+	struct mesh_table *tbl;
+	struct mesh_path *mpp;
+	struct mpath_node *node;
+	int i;
+
+	rcu_read_lock();
+	read_lock_bh(&pathtbl_resize_lock);
+	tbl = resize_dereference_mpp_paths();
+	for_each_mesh_entry(tbl, node, i) {
+		mpp = node->mpath;
+		if (ether_addr_equal(mpp->mpp, proxy)) {
+			spin_lock(&tbl->hashwlock[i]);
+			__mesh_path_del(tbl, node);
+			spin_unlock(&tbl->hashwlock[i]);
+		}
+	}
+	read_unlock_bh(&pathtbl_resize_lock);
+	rcu_read_unlock();
+}
+
 static void table_flush_by_iface(struct mesh_table *tbl,
 				 struct ieee80211_sub_if_data *sdata)
 {
···
 }
 
 /**
- * mesh_path_del - delete a mesh path from the table
+ * table_path_del - delete a path from the mesh or mpp table
  *
- * @addr: dst address (ETH_ALEN length)
+ * @tbl: mesh or mpp path table
  * @sdata: local subif
+ * @addr: dst address (ETH_ALEN length)
  *
  * Returns: 0 if successful
  */
-int mesh_path_del(struct ieee80211_sub_if_data *sdata, const u8 *addr)
+static int table_path_del(struct mesh_table __rcu *rcu_tbl,
+			  struct ieee80211_sub_if_data *sdata,
+			  const u8 *addr)
 {
 	struct mesh_table *tbl;
 	struct mesh_path *mpath;
···
 	int hash_idx;
 	int err = 0;
 
-	read_lock_bh(&pathtbl_resize_lock);
-	tbl = resize_dereference_mesh_paths();
+	tbl = resize_dereference_paths(rcu_tbl);
 	hash_idx = mesh_table_hash(addr, sdata, tbl);
 	bucket = &tbl->hash_buckets[hash_idx];
 
···
 
 	err = -ENXIO;
 enddel:
-	mesh_paths_generation++;
 	spin_unlock(&tbl->hashwlock[hash_idx]);
+	return err;
+}
+
+/**
+ * mesh_path_del - delete a mesh path from the table
+ *
+ * @addr: dst address (ETH_ALEN length)
+ * @sdata: local subif
+ *
+ * Returns: 0 if successful
+ */
+int mesh_path_del(struct ieee80211_sub_if_data *sdata, const u8 *addr)
+{
+	int err = 0;
+
+	/* flush relevant mpp entries first */
+	mpp_flush_by_proxy(sdata, addr);
+
+	read_lock_bh(&pathtbl_resize_lock);
+	err = table_path_del(mesh_paths, sdata, addr);
+	mesh_paths_generation++;
 	read_unlock_bh(&pathtbl_resize_lock);
+
+	return err;
+}
+
+/**
+ * mpp_path_del - delete a mesh proxy path from the table
+ *
+ * @addr: addr address (ETH_ALEN length)
+ * @sdata: local subif
+ *
+ * Returns: 0 if successful
+ */
+static int mpp_path_del(struct ieee80211_sub_if_data *sdata, const u8 *addr)
+{
+	int err = 0;
+
+	read_lock_bh(&pathtbl_resize_lock);
+	err = table_path_del(mpp_paths, sdata, addr);
+	mpp_paths_generation++;
+	read_unlock_bh(&pathtbl_resize_lock);
+
 	return err;
 }
 
···
 		return -ENOMEM;
 	tbl_path->free_node = &mesh_path_node_free;
 	tbl_path->copy_node = &mesh_path_node_copy;
-	tbl_path->mean_chain_len = MEAN_CHAIN_LEN;
 	tbl_path->known_gates = kzalloc(sizeof(struct hlist_head), GFP_ATOMIC);
 	if (!tbl_path->known_gates) {
 		ret = -ENOMEM;
···
 	}
 	tbl_mpp->free_node = &mesh_path_node_free;
 	tbl_mpp->copy_node = &mesh_path_node_copy;
-	tbl_mpp->mean_chain_len = MEAN_CHAIN_LEN;
 	tbl_mpp->known_gates = kzalloc(sizeof(struct hlist_head), GFP_ATOMIC);
 	if (!tbl_mpp->known_gates) {
 		ret = -ENOMEM;
···
 		     time_after(jiffies, mpath->exp_time + MESH_PATH_EXPIRE))
 			mesh_path_del(mpath->sdata, mpath->dst);
 	}
+
+	tbl = rcu_dereference(mpp_paths);
+	for_each_mesh_entry(tbl, node, i) {
+		if (node->mpath->sdata != sdata)
+			continue;
+		mpath = node->mpath;
+		if ((!(mpath->flags & MESH_PATH_FIXED)) &&
+		    time_after(jiffies, mpath->exp_time + MESH_PATH_EXPIRE))
+			mpp_path_del(mpath->sdata, mpath->dst);
+	}
+
 	rcu_read_unlock();
 }
 

net/mac80211/mesh_plink.c

···
 			mpl_dbg(sdata, "Mesh plink error: no more free plinks\n");
 			goto out;
 		}
+
+		/* new matching peer */
+		event = OPN_ACPT;
+		goto out;
 	} else {
 		if (!test_sta_flag(sta, WLAN_STA_AUTH)) {
 			mpl_dbg(sdata, "Mesh plink: Action frame from non-authed peer\n");
···
 		}
 		if (sta->mesh->plink_state == NL80211_PLINK_BLOCKED)
 			goto out;
-	}
-
-	/* new matching peer */
-	if (!sta) {
-		event = OPN_ACPT;
-		goto out;
 	}
 
 	switch (ftype) {

net/mac80211/mlme.c

···
  * Copyright 2006-2007	Jiri Benc <[e-mail]>
  * Copyright 2007, Michael Wu <[e-mail]>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
- * Copyright (C) 2015 Intel Deutschland GmbH
+ * Copyright (C) 2015 - 2016 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
 
 	/* check 40 MHz support, if we have it */
 	if (sta_ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
-		switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
-		case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
-			chandef->width = NL80211_CHAN_WIDTH_40;
-			chandef->center_freq1 += 10;
-			break;
-		case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
-			chandef->width = NL80211_CHAN_WIDTH_40;
-			chandef->center_freq1 -= 10;
-			break;
-		}
+		ieee80211_chandef_ht_oper(ht_oper, chandef);
 	} else {
 		/* 40 MHz (and 80 MHz) must be supported for VHT */
 		ret = IEEE80211_STA_DISABLE_VHT;
···
 		goto out;
 	}
 
-	vht_chandef.chan = channel;
-	vht_chandef.center_freq1 =
-		ieee80211_channel_to_frequency(vht_oper->center_freq_seg1_idx,
-					       channel->band);
-	vht_chandef.center_freq2 = 0;
-
-	switch (vht_oper->chan_width) {
-	case IEEE80211_VHT_CHANWIDTH_USE_HT:
-		vht_chandef.width = chandef->width;
-		vht_chandef.center_freq1 = chandef->center_freq1;
-		break;
-	case IEEE80211_VHT_CHANWIDTH_80MHZ:
-		vht_chandef.width = NL80211_CHAN_WIDTH_80;
-		break;
-	case IEEE80211_VHT_CHANWIDTH_160MHZ:
-		vht_chandef.width = NL80211_CHAN_WIDTH_160;
-		break;
-	case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
-		vht_chandef.width = NL80211_CHAN_WIDTH_80P80;
-		vht_chandef.center_freq2 =
-			ieee80211_channel_to_frequency(
-				vht_oper->center_freq_seg2_idx,
-				channel->band);
-		break;
-	default:
+	vht_chandef = *chandef;
+	if (!ieee80211_chandef_vht_oper(vht_oper, &vht_chandef)) {
 		if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
 			sdata_info(sdata,
-				   "AP VHT operation IE has invalid channel width (%d), disable VHT\n",
-				   vht_oper->chan_width);
+				   "AP VHT information is invalid, disable VHT\n");
 		ret = IEEE80211_STA_DISABLE_VHT;
 		goto out;
 	}
···
 		struct ieee80211_sub_if_data *other;
 
 		list_for_each_entry_rcu(other, &local->interfaces, list) {
-			if (other->flags & IEEE80211_SDATA_MU_MIMO_OWNER) {
+			if (other->vif.mu_mimo_owner) {
 				disable_mu_mimo = true;
 				break;
 			}
···
 		if (disable_mu_mimo)
 			cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE;
 		else
-			sdata->flags |= IEEE80211_SDATA_MU_MIMO_OWNER;
+			sdata->vif.mu_mimo_owner = true;
 	}
 
 	mask = IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
···
 
 void ieee80211_dfs_cac_timer_work(struct work_struct *work)
 {
-	struct delayed_work *delayed_work =
-		container_of(work, struct delayed_work, work);
+	struct delayed_work *delayed_work = to_delayed_work(work);
 	struct ieee80211_sub_if_data *sdata =
 		container_of(delayed_work, struct ieee80211_sub_if_data,
 			     dfs_cac_timer_work);
···
 	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->flags &= ~IEEE80211_SDATA_MU_MIMO_OWNER;
+
+	/* reset MU-MIMO ownership and group data */
+	memset(sdata->vif.bss_conf.mu_group.membership, 0,
+	       sizeof(sdata->vif.bss_conf.mu_group.membership));
+	memset(sdata->vif.bss_conf.mu_group.position, 0,
+	       sizeof(sdata->vif.bss_conf.mu_group.position));
+	changed |= BSS_CHANGED_MU_GROUPS;
+	sdata->vif.mu_mimo_owner = false;
 
 	sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL;
 
···
 		eth_zero_addr(sdata->u.mgd.bssid);
 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
 		sdata->u.mgd.flags = 0;
-		sdata->flags &= ~IEEE80211_SDATA_MU_MIMO_OWNER;
+		sdata->vif.mu_mimo_owner = false;
+
 		mutex_lock(&sdata->local->mtx);
 		ieee80211_vif_release_channel(sdata);
 		mutex_unlock(&sdata->local->mtx);
···
 				elems.ht_cap_elem, elems.ht_operation,
 				elems.vht_operation, bssid, &changed)) {
 		mutex_unlock(&local->sta_mtx);
+		sdata_info(sdata,
+			   "failed to follow AP %pM bandwidth change, disconnect\n",
+			   bssid);
 		ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
 				       WLAN_REASON_DEAUTH_LEAVING,
 				       true, deauth_buf);
···
 			 * We actually lost the connection ... or did we?
 			 * Let's make sure!
 			 */
-			wiphy_debug(local->hw.wiphy,
-				    "%s: No probe response from AP %pM"
-				    " after %dms, disconnecting.\n",
-				    sdata->name,
-				    bssid, probe_wait_ms);
+			mlme_dbg(sdata,
+				 "No probe response from AP %pM after %dms, disconnecting.\n",
+				 bssid, probe_wait_ms);
 
 			ieee80211_sta_connection_lost(sdata, bssid,
 				WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false);
···
 	if (ifmgd->associated) {
 		u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
+		sdata_info(sdata,
+			   "disconnect from AP %pM for new auth to %pM\n",
+			   ifmgd->associated->bssid, req->bss->bssid);
 		ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
 				       WLAN_REASON_UNSPECIFIED,
 				       false, frame_buf);
···
 	if (ifmgd->associated) {
 		u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
+		sdata_info(sdata,
+			   "disconnect from AP %pM for new assoc to %pM\n",
+			   ifmgd->associated->bssid, req->bss->bssid);
 		ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
 				       WLAN_REASON_UNSPECIFIED,
 				       false, frame_buf);

net/mac80211/rx.c

···
  * Copyright 2006-2007	Jiri Benc <[e-mail]>
  * Copyright 2007-2010	Johannes Berg <[e-mail]>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
+ * Copyright(c) 2015 - 2016 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
 #include <linux/etherdevice.h>
 #include <linux/rcupdate.h>
 #include <linux/export.h>
+#include <linux/bitops.h>
 #include <net/mac80211.h>
 #include <net/ieee80211_radiotap.h>
 #include <asm/unaligned.h>
···
 	hdr = (void *)(skb->data + rtap_vendor_space);
 
 	if (status->flag & (RX_FLAG_FAILED_FCS_CRC |
-			    RX_FLAG_FAILED_PLCP_CRC))
+			    RX_FLAG_FAILED_PLCP_CRC |
+			    RX_FLAG_ONLY_MONITOR))
 		return true;
 
 	if (unlikely(skb->len < 16 + present_fcs_len + rtap_vendor_space))
···
 		return NULL;
 	}
 
-	if (!local->monitors) {
+	if (!local->monitors || (status->flag & RX_FLAG_SKIP_MONITOR)) {
 		if (should_drop_frame(origskb, present_fcs_len,
 				      rtap_vendor_space)) {
 			dev_kfree_skb(origskb);
···
 	return RX_CONTINUE;
 }
 
+static inline bool ieee80211_rx_reorder_ready(struct tid_ampdu_rx *tid_agg_rx,
+					      int index)
+{
+	struct sk_buff_head *frames = &tid_agg_rx->reorder_buf[index];
+	struct sk_buff *tail = skb_peek_tail(frames);
+	struct ieee80211_rx_status *status;
+
+	if (tid_agg_rx->reorder_buf_filtered & BIT_ULL(index))
+		return true;
+
+	if (!tail)
+		return false;
+
+	status = IEEE80211_SKB_RXCB(tail);
+	if (status->flag & RX_FLAG_AMSDU_MORE)
+		return false;
+
+	return true;
+}
+
 static void ieee80211_release_reorder_frame(struct ieee80211_sub_if_data *sdata,
 					    struct tid_ampdu_rx *tid_agg_rx,
 					    int index,
···
 	if (skb_queue_empty(skb_list))
 		goto no_frame;
 
-	if (!ieee80211_rx_reorder_ready(skb_list)) {
+	if (!ieee80211_rx_reorder_ready(tid_agg_rx, index)) {
 		__skb_queue_purge(skb_list);
 		goto no_frame;
 	}
···
 	}
 
 no_frame:
+	tid_agg_rx->reorder_buf_filtered &= ~BIT_ULL(index);
 	tid_agg_rx->head_seq_num = ieee80211_sn_inc(tid_agg_rx->head_seq_num);
 }
 
···
 
 	/* release the buffer until next missing frame */
 	index = tid_agg_rx->head_seq_num % tid_agg_rx->buf_size;
-	if (!ieee80211_rx_reorder_ready(&tid_agg_rx->reorder_buf[index]) &&
+	if (!ieee80211_rx_reorder_ready(tid_agg_rx, index) &&
 	    tid_agg_rx->stored_mpdu_num) {
 		/*
 		 * No buffers ready to be released, but check whether any
···
 		int skipped = 1;
 		for (j = (index + 1) % tid_agg_rx->buf_size; j != index;
 		     j = (j + 1) % tid_agg_rx->buf_size) {
-			if (!ieee80211_rx_reorder_ready(
-					&tid_agg_rx->reorder_buf[j])) {
+			if (!ieee80211_rx_reorder_ready(tid_agg_rx, j)) {
 				skipped++;
 				continue;
 			}
···
 				 skipped) & IEEE80211_SN_MASK;
 			skipped = 0;
 		}
-	} else while (ieee80211_rx_reorder_ready(
-				&tid_agg_rx->reorder_buf[index])) {
+	} else while (ieee80211_rx_reorder_ready(tid_agg_rx, index)) {
 		ieee80211_release_reorder_frame(sdata, tid_agg_rx, index,
 						frames);
 		index =	tid_agg_rx->head_seq_num % tid_agg_rx->buf_size;
···
 
 		for (; j != (index - 1) % tid_agg_rx->buf_size;
 		     j = (j + 1) % tid_agg_rx->buf_size) {
-			if (ieee80211_rx_reorder_ready(
-					&tid_agg_rx->reorder_buf[j]))
+			if (ieee80211_rx_reorder_ready(tid_agg_rx, j))
 				break;
 		}
 
···
 	index = mpdu_seq_num % tid_agg_rx->buf_size;
 
 	/* check if we already stored this frame */
-	if (ieee80211_rx_reorder_ready(&tid_agg_rx->reorder_buf[index])) {
+	if (ieee80211_rx_reorder_ready(tid_agg_rx, index)) {
 		dev_kfree_skb(skb);
 		goto out;
 	}
···
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
+
+	if (status->flag & RX_FLAG_DUP_VALIDATED)
+		return RX_CONTINUE;
 
 	/*
 	 * Drop duplicate 802.11 retransmissions
···
 	skb->dev = dev;
 	__skb_queue_head_init(&frame_list);
 
-	if (skb_linearize(skb))
-		return RX_DROP_UNUSABLE;
-
 	ieee80211_amsdu_to_8023s(skb, &frame_list, dev->dev_addr,
 				 rx->sdata->vif.type,
 				 rx->local->hw.extra_tx_headroom, true);
···
 	struct ieee80211_local *local = rx->local;
 	struct ieee80211_sub_if_data *sdata = rx->sdata;
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
-	u16 q, hdrlen;
+	u16 ac, q, hdrlen;
 
 	hdr = (struct ieee80211_hdr *) skb->data;
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
···
 			spin_lock_bh(&mppath->state_lock);
 			if (!ether_addr_equal(mppath->mpp, mpp_addr))
 				memcpy(mppath->mpp, mpp_addr, ETH_ALEN);
+			mppath->exp_time = jiffies;
 			spin_unlock_bh(&mppath->state_lock);
 		}
 		rcu_read_unlock();
···
 	    ether_addr_equal(sdata->vif.addr, hdr->addr3))
 		return RX_CONTINUE;
 
-	q = ieee80211_select_queue_80211(sdata, skb, hdr);
+	ac = ieee80211_select_queue_80211(sdata, skb, hdr);
+	q = sdata->vif.hw_queue[ac];
 	if (ieee80211_queue_stopped(&local->hw, q)) {
 		IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_congestion);
 		return RX_DROP_MONITOR;
···
 			ieee80211_vht_handle_opmode(rx->sdata, rx->sta,
 						    opmode, status->band);
 			goto handled;
+		}
+		case WLAN_VHT_ACTION_GROUPID_MGMT: {
+			if (len < IEEE80211_MIN_ACTION_SIZE + 25)
+				goto invalid;
+			goto queue;
 		}
 		default:
 			break;
···
 
 	ieee80211_rx_handlers(&rx, &frames);
 }
+
+void ieee80211_mark_rx_ba_filtered_frames(struct ieee80211_sta *pubsta, u8 tid,
+					  u16 ssn, u64 filtered,
+					  u16 received_mpdus)
+{
+	struct sta_info *sta;
+	struct tid_ampdu_rx *tid_agg_rx;
+	struct sk_buff_head frames;
+	struct ieee80211_rx_data rx = {
+		/* This is OK -- must be QoS data frame */
+		.security_idx = tid,
+		.seqno_idx = tid,
+	};
+	int i, diff;
+
+	if (WARN_ON(!pubsta || tid >= IEEE80211_NUM_TIDS))
+		return;
+
+	__skb_queue_head_init(&frames);
+
+	sta = container_of(pubsta, struct sta_info, sta);
+
+	rx.sta = sta;
+	rx.sdata = sta->sdata;
+	rx.local = sta->local;
+
+	rcu_read_lock();
+	tid_agg_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[tid]);
+	if (!tid_agg_rx)
+		goto out;
+
+	spin_lock_bh(&tid_agg_rx->reorder_lock);
+
+	if (received_mpdus >= IEEE80211_SN_MODULO >> 1) {
+		int release;
+
+		/* release all frames in the reorder buffer */
+		release = (tid_agg_rx->head_seq_num + tid_agg_rx->buf_size) %
+			   IEEE80211_SN_MODULO;
+		ieee80211_release_reorder_frames(sta->sdata, tid_agg_rx,
+						 release, &frames);
+		/* update ssn to match received ssn */
+		tid_agg_rx->head_seq_num = ssn;
+	} else {
+		ieee80211_release_reorder_frames(sta->sdata, tid_agg_rx, ssn,
+						 &frames);
+	}
+
+	/* handle the case that received ssn is behind the mac ssn.
+	 * it can be tid_agg_rx->buf_size behind and still be valid */
+	diff = (tid_agg_rx->head_seq_num - ssn) & IEEE80211_SN_MASK;
+	if (diff >= tid_agg_rx->buf_size) {
+		tid_agg_rx->reorder_buf_filtered = 0;
+		goto release;
+	}
+	filtered = filtered >> diff;
+	ssn += diff;
+
+	/* update bitmap */
+	for (i = 0; i < tid_agg_rx->buf_size; i++) {
+		int index = (ssn + i) % tid_agg_rx->buf_size;
+
+		tid_agg_rx->reorder_buf_filtered &= ~BIT_ULL(index);
+		if (filtered & BIT_ULL(i))
+			tid_agg_rx->reorder_buf_filtered |= BIT_ULL(index);
+	}
+
+	/* now process also frames that the filter marking released */
+	ieee80211_sta_reorder_release(sta->sdata, tid_agg_rx, &frames);
+
+release:
+	spin_unlock_bh(&tid_agg_rx->reorder_lock);
+
+	ieee80211_rx_handlers(&rx, &frames);
+
+ out:
+	rcu_read_unlock();
+}
+EXPORT_SYMBOL(ieee80211_mark_rx_ba_filtered_frames);
 
 /* main receive path */
 

net/mac80211/sta_info.c

···
 
 			ieee80211_purge_tx_queue(&local->hw, &txqi->queue);
 			atomic_sub(n, &sdata->txqs_len[txqi->txq.ac]);
+			txqi->byte_cnt = 0;
 		}
 	}
 
···
 {
 	struct ieee80211_local *local = sta->local;
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
-	struct station_info sinfo;
+	struct station_info *sinfo;
 	int err = 0;
 
 	lockdep_assert_held(&local->sta_mtx);
+
+	sinfo = kzalloc(sizeof(struct station_info), GFP_KERNEL);
+	if (!sinfo) {
+		err = -ENOMEM;
+		goto out_err;
+	}
 
 	/* check if STA exists already */
 	if (sta_info_get_bss(sdata, sta->sta.addr)) {
···
 	/* accept BA sessions now */
 	clear_sta_flag(sta, WLAN_STA_BLOCK_BA);
 
-	ieee80211_recalc_min_chandef(sdata);
 	ieee80211_sta_debugfs_add(sta);
 	rate_control_add_sta_debugfs(sta);
 
-	memset(&sinfo, 0, sizeof(sinfo));
-	sinfo.filled = 0;
-	sinfo.generation = local->sta_generation;
-	cfg80211_new_sta(sdata->dev, sta->sta.addr, &sinfo, GFP_KERNEL);
+	sinfo->generation = local->sta_generation;
+	cfg80211_new_sta(sdata->dev, sta->sta.addr, sinfo, GFP_KERNEL);
+	kfree(sinfo);
 
 	sta_dbg(sdata, "Inserted STA %pM\n", sta->sta.addr);
 
···
 	__cleanup_single_sta(sta);
  out_err:
 	mutex_unlock(&local->sta_mtx);
+	kfree(sinfo);
 	rcu_read_lock();
 	return err;
 }
···
 {
 	struct ieee80211_local *local = sta->local;
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
-	struct station_info sinfo = {};
+	struct station_info *sinfo;
 	int ret;
 
 	/*
···
 
 	sta_dbg(sdata, "Removed STA %pM\n", sta->sta.addr);
 
-	sta_set_sinfo(sta, &sinfo);
-	cfg80211_del_sta_sinfo(sdata->dev, sta->sta.addr, &sinfo, GFP_KERNEL);
+	sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL);
+	if (sinfo)
+		sta_set_sinfo(sta, sinfo);
+	cfg80211_del_sta_sinfo(sdata->dev, sta->sta.addr, sinfo, GFP_KERNEL);
+	kfree(sinfo);
 
 	rate_control_remove_sta_debugfs(sta);
 	ieee80211_sta_debugfs_remove(sta);
-	ieee80211_recalc_min_chandef(sdata);
 
 	cleanup_single_sta(sta);
 }
···
 			clear_bit(WLAN_STA_AUTH, &sta->_flags);
 		break;
 	case IEEE80211_STA_AUTH:
-		if (sta->sta_state == IEEE80211_STA_NONE)
+		if (sta->sta_state == IEEE80211_STA_NONE) {
 			set_bit(WLAN_STA_AUTH, &sta->_flags);
-		else if (sta->sta_state == IEEE80211_STA_ASSOC)
+		} else if (sta->sta_state == IEEE80211_STA_ASSOC) {
 			clear_bit(WLAN_STA_ASSOC, &sta->_flags);
+			ieee80211_recalc_min_chandef(sta->sdata);
+		}
 		break;
 	case IEEE80211_STA_ASSOC:
 		if (sta->sta_state == IEEE80211_STA_AUTH) {
 			set_bit(WLAN_STA_ASSOC, &sta->_flags);
+			ieee80211_recalc_min_chandef(sta->sdata);
 		} else if (sta->sta_state == IEEE80211_STA_AUTHORIZED) {
 			if (sta->sdata->vif.type == NL80211_IFTYPE_AP ||
 			    (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&

net/mac80211/sta_info.h

···
 /*
  * Copyright 2002-2005, Devicescape Software, Inc.
  * Copyright 2013-2014  Intel Mobile Communications GmbH
+ * Copyright(c) 2015 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
  *
  * @reorder_buf: buffer to reorder incoming aggregated MPDUs. An MPDU may be an
  *	A-MSDU with individually reported subframes.
+ * @reorder_buf_filtered: bitmap indicating where there are filtered frames in
+ *	the reorder buffer that should be ignored when releasing frames
  * @reorder_time: jiffies when skb was added
  * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
  * @reorder_timer: releases expired frames from the reorder buffer.
···
 struct tid_ampdu_rx {
 	struct rcu_head rcu_head;
 	spinlock_t reorder_lock;
+	u64 reorder_buf_filtered;
 	struct sk_buff_head *reorder_buf;
 	unsigned long *reorder_time;
 	struct timer_list session_timer;
···
 /**
  * struct sta_ampdu_mlme - STA aggregation information.
  *
+ * @mtx: mutex to protect all TX data (except non-NULL assignments
+ *	to tid_tx[idx], which are protected by the sta spinlock)
+ *	tid_start_tx is also protected by sta->lock.
  * @tid_rx: aggregation info for Rx per TID -- RCU protected
- * @tid_tx: aggregation info for Tx per TID
- * @tid_start_tx: sessions where start was requested
- * @addba_req_num: number of times addBA request has been sent.
- * @last_addba_req_time: timestamp of the last addBA request.
- * @dialog_token_allocator: dialog token enumerator for each new session;
- * @work: work struct for starting/stopping aggregation
  * @tid_rx_timer_expired: bitmap indicating on which TIDs the
  *	RX timer expired until the work for it runs
  * @tid_rx_stop_requested:  bitmap indicating which BA sessions per TID the
  *	driver requested to close until the work for it runs
- * @mtx: mutex to protect all TX data (except non-NULL assignments
- *	to tid_tx[idx], which are protected by the sta spinlock)
- *	tid_start_tx is also protected by sta->lock.
+ * @agg_session_valid: bitmap indicating which TID has a rx BA session open on
+ * @work: work struct for starting/stopping aggregation
+ * @tid_tx: aggregation info for Tx per TID
+ * @tid_start_tx: sessions where start was requested
+ * @last_addba_req_time: timestamp of the last addBA request.
+ * @addba_req_num: number of times addBA request has been sent.
+ * @dialog_token_allocator: dialog token enumerator for each new session;
  */
 struct sta_ampdu_mlme {
 	struct mutex mtx;
···
 	struct tid_ampdu_rx __rcu *tid_rx[IEEE80211_NUM_TIDS];
 	unsigned long tid_rx_timer_expired[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
 	unsigned long tid_rx_stop_requested[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
+	unsigned long agg_session_valid[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
 	/* tx */
 	struct work_struct work;
 	struct tid_ampdu_tx __rcu *tid_tx[IEEE80211_NUM_TIDS];

net/mac80211/tkip.c

···
 /*
  * Copyright 2002-2004, Instant802 Networks, Inc.
  * Copyright 2005, Devicescape Software, Inc.
+ * Copyright (C) 2016 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
 /* Add TKIP IV and Ext. IV at @pos. @iv0, @iv1, and @iv2 are the first octets
  * of the IV. Returns pointer to the octet following IVs (i.e., beginning of
  * the packet payload). */
-u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key)
+u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key_conf *keyconf, u64 pn)
 {
-	lockdep_assert_held(&key->u.tkip.txlock);
-
-	pos = write_tkip_iv(pos, key->u.tkip.tx.iv16);
-	*pos++ = (key->conf.keyidx << 6) | (1 << 5) /* Ext IV */;
-	put_unaligned_le32(key->u.tkip.tx.iv32, pos);
+	pos = write_tkip_iv(pos, TKIP_PN_TO_IV16(pn));
+	*pos++ = (keyconf->keyidx << 6) | (1 << 5) /* Ext IV */;
+	put_unaligned_le32(TKIP_PN_TO_IV32(pn), pos);
 	return pos + 4;
 }
+EXPORT_SYMBOL_GPL(ieee80211_tkip_add_iv);
 
 static void ieee80211_compute_tkip_p1k(struct ieee80211_key *key, u32 iv32)
 {
···
 	u8 rc4key[16], keyid, *pos = payload;
 	int res;
 	const u8 *tk = &key->conf.key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY];
+	struct tkip_ctx_rx *rx_ctx = &key->u.tkip.rx[queue];
 
 	if (payload_len < 12)
 		return -1;
···
 	if ((keyid >> 6) != key->conf.keyidx)
 		return TKIP_DECRYPT_INVALID_KEYIDX;
 
-	if (key->u.tkip.rx[queue].state != TKIP_STATE_NOT_INIT &&
-	    (iv32 < key->u.tkip.rx[queue].iv32 ||
-	     (iv32 == key->u.tkip.rx[queue].iv32 &&
-	      iv16 <= key->u.tkip.rx[queue].iv16)))
+	if (rx_ctx->ctx.state != TKIP_STATE_NOT_INIT &&
+	    (iv32 < rx_ctx->iv32 ||
+	     (iv32 == rx_ctx->iv32 && iv16 <= rx_ctx->iv16)))
 		return TKIP_DECRYPT_REPLAY;
 
 	if (only_iv) {
 		res = TKIP_DECRYPT_OK;
-		key->u.tkip.rx[queue].state = TKIP_STATE_PHASE1_HW_UPLOADED;
+		rx_ctx->ctx.state = TKIP_STATE_PHASE1_HW_UPLOADED;
 		goto done;
 	}
 
-	if (key->u.tkip.rx[queue].state == TKIP_STATE_NOT_INIT ||
-	    key->u.tkip.rx[queue].iv32 != iv32) {
+	if (rx_ctx->ctx.state == TKIP_STATE_NOT_INIT ||
+	    rx_ctx->iv32 != iv32) {
 		/* IV16 wrapped around - perform TKIP phase 1 */
-		tkip_mixing_phase1(tk, &key->u.tkip.rx[queue], ta, iv32);
+		tkip_mixing_phase1(tk, &rx_ctx->ctx, ta, iv32);
 	}
 	if (key->local->ops->update_tkip_key &&
 	    key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
-	    key->u.tkip.rx[queue].state != TKIP_STATE_PHASE1_HW_UPLOADED) {
+	    rx_ctx->ctx.state != TKIP_STATE_PHASE1_HW_UPLOADED) {
 		struct ieee80211_sub_if_data *sdata = key->sdata;
 
 		if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
 			sdata = container_of(key->sdata->bss,
 					struct ieee80211_sub_if_data, u.ap);
 		drv_update_tkip_key(key->local, sdata, &key->conf, key->sta,
-				iv32, key->u.tkip.rx[queue].p1k);
-		key->u.tkip.rx[queue].state = TKIP_STATE_PHASE1_HW_UPLOADED;
+				iv32, rx_ctx->ctx.p1k);
+		rx_ctx->ctx.state = TKIP_STATE_PHASE1_HW_UPLOADED;
 	}
 
-	tkip_mixing_phase2(tk, &key->u.tkip.rx[queue], iv16, rc4key);
+	tkip_mixing_phase2(tk, &rx_ctx->ctx, iv16, rc4key);
 
 	res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12);
  done:

net/mac80211/tkip.h

···
 #include <linux/crypto.h>
 #include "key.h"
 
-u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key);
-
 int ieee80211_tkip_encrypt_data(struct crypto_cipher *tfm,
 				struct ieee80211_key *key,
 				struct sk_buff *skb,

net/mac80211/trace.h

···
 #define KEY_PR_FMT	" cipher:0x%x, flags=%#x, keyidx=%d, hw_key_idx=%d"
 #define KEY_PR_ARG	__entry->cipher, __entry->flags, __entry->keyidx, __entry->hw_key_idx
 
-
+#define AMPDU_ACTION_ENTRY	__field(enum ieee80211_ampdu_mlme_action,		\
+					ieee80211_ampdu_mlme_action)			\
+				STA_ENTRY						\
+				__field(u16, tid)					\
+				__field(u16, ssn)					\
+				__field(u8, buf_size)					\
+				__field(bool, amsdu)					\
+				__field(u16, timeout)
+#define AMPDU_ACTION_ASSIGN	STA_NAMED_ASSIGN(params->sta);				\
+				__entry->tid = params->tid;				\
+				__entry->ssn = params->ssn;				\
+				__entry->buf_size = params->buf_size;			\
+				__entry->amsdu = params->amsdu;				\
+				__entry->timeout = params->timeout;
+#define AMPDU_ACTION_PR_FMT	STA_PR_FMT " tid %d, ssn %d, buf_size %u, amsdu %d, timeout %d"
+#define AMPDU_ACTION_PR_ARG	STA_PR_ARG, __entry->tid, __entry->ssn,			\
+				__entry->buf_size, __entry->amsdu, __entry->timeout
 
 /*
  * Tracing for driver callbacks.
···
 TRACE_EVENT(drv_ampdu_action,
 	TP_PROTO(struct ieee80211_local *local,
 		 struct ieee80211_sub_if_data *sdata,
-		 enum ieee80211_ampdu_mlme_action action,
-		 struct ieee80211_sta *sta, u16 tid,
-		 u16 *ssn, u8 buf_size, bool amsdu),
+		 struct ieee80211_ampdu_params *params),
 
-	TP_ARGS(local, sdata, action, sta, tid, ssn, buf_size, amsdu),
+	TP_ARGS(local, sdata, params),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
-		STA_ENTRY
-		__field(u32, action)
-		__field(u16, tid)
-		__field(u16, ssn)
-		__field(u8, buf_size)
-		__field(bool, amsdu)
 		VIF_ENTRY
+		AMPDU_ACTION_ENTRY
 	),
 
 	TP_fast_assign(
 		LOCAL_ASSIGN;
 		VIF_ASSIGN;
-		STA_ASSIGN;
-		__entry->action = action;
-		__entry->tid = tid;
-		__entry->ssn = ssn ? *ssn : 0;
-		__entry->buf_size = buf_size;
-		__entry->amsdu = amsdu;
+		AMPDU_ACTION_ASSIGN;
 	),
 
 	TP_printk(
-		LOCAL_PR_FMT VIF_PR_FMT STA_PR_FMT " action:%d tid:%d buf:%d amsdu:%d",
-		LOCAL_PR_ARG, VIF_PR_ARG, STA_PR_ARG, __entry->action,
-		__entry->tid, __entry->buf_size, __entry->amsdu
+		LOCAL_PR_FMT VIF_PR_FMT AMPDU_ACTION_PR_FMT,
+		LOCAL_PR_ARG, VIF_PR_ARG, AMPDU_ACTION_PR_ARG
 	)
 );
 

net/mac80211/tx.c

···
 
 	info->control.short_preamble = txrc.short_preamble;
 
+	/* don't ask rate control when rate already injected via radiotap */
+	if (info->control.flags & IEEE80211_TX_CTRL_RATE_INJECT)
+		return TX_CONTINUE;
+
 	if (tx->sta)
 		assoc = test_sta_flag(tx->sta, WLAN_STA_ASSOC);
 
···
 	if (atomic_read(&sdata->txqs_len[ac]) >= local->hw.txq_ac_max_pending)
 		netif_stop_subqueue(sdata->dev, ac);
 
-	skb_queue_tail(&txqi->queue, skb);
+	spin_lock_bh(&txqi->queue.lock);
+	txqi->byte_cnt += skb->len;
+	__skb_queue_tail(&txqi->queue, skb);
+	spin_unlock_bh(&txqi->queue.lock);
+
 	drv_wake_tx_queue(local, txqi);
 
 	return;
···
 	skb = __skb_dequeue(&txqi->queue);
 	if (!skb)
 		goto out;
+
+	txqi->byte_cnt -= skb->len;
 
 	atomic_dec(&sdata->txqs_len[ac]);
 	if (__netif_subqueue_stopped(sdata->dev, ac))
···
 	ieee80211_tx(sdata, sta, skb, false);
 }
 
-static bool ieee80211_parse_tx_radiotap(struct sk_buff *skb)
+static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
+					struct sk_buff *skb)
 {
 	struct ieee80211_radiotap_iterator iterator;
 	struct ieee80211_radiotap_header *rthdr =
 		(struct ieee80211_radiotap_header *) skb->data;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_supported_band *sband =
+		local->hw.wiphy->bands[info->band];
 	int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len,
 						   NULL);
 	u16 txflags;
+	u16 rate = 0;
+	bool rate_found = false;
+	u8 rate_retries = 0;
+	u16 rate_flags = 0;
+	u8 mcs_known, mcs_flags;
+	int i;
 
 	info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT |
 		       IEEE80211_TX_CTL_DONTFRAG;
···
 				info->flags |= IEEE80211_TX_CTL_NO_ACK;
 			break;
 
+		case IEEE80211_RADIOTAP_RATE:
+			rate = *iterator.this_arg;
+			rate_flags = 0;
+			rate_found = true;
+			break;
+
+		case IEEE80211_RADIOTAP_DATA_RETRIES:
+			rate_retries = *iterator.this_arg;
+			break;
+
+		case IEEE80211_RADIOTAP_MCS:
+			mcs_known = iterator.this_arg[0];
+			mcs_flags = iterator.this_arg[1];
+			if (!(mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_MCS))
+				break;
+
+			rate_found = true;
+			rate = iterator.this_arg[2];
+			rate_flags = IEEE80211_TX_RC_MCS;
+
+			if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_GI &&
+			    mcs_flags & IEEE80211_RADIOTAP_MCS_SGI)
+				rate_flags |= IEEE80211_TX_RC_SHORT_GI;
+
+			if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_BW &&
+			    mcs_flags & IEEE80211_RADIOTAP_MCS_BW_40)
+				rate_flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
+			break;
+
 		/*
 		 * Please update the file
 		 * Documentation/networking/mac80211-injection.txt
···
 
 	if (ret != -ENOENT) /* ie, if we didn't simply run out of fields */
 		return false;
+
+	if (rate_found) {
+		info->control.flags |= IEEE80211_TX_CTRL_RATE_INJECT;
+
+		for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
+			info->control.rates[i].idx = -1;
+			info->control.rates[i].flags = 0;
+			info->control.rates[i].count = 0;
+		}
+
+		if (rate_flags & IEEE80211_TX_RC_MCS) {
+			info->control.rates[0].idx = rate;
+		} else {
+			for (i = 0; i < sband->n_bitrates; i++) {
+				if (rate * 5 != sband->bitrates[i].bitrate)
+					continue;
+
+				info->control.rates[0].idx = i;
+				break;
+			}
+		}
+
+		info->control.rates[0].flags = rate_flags;
+		info->control.rates[0].count = min_t(u8, rate_retries + 1,
+						     local->hw.max_rate_tries);
+	}
 
 	/*
 	 * remove the radiotap header
···
 	info->flags = IEEE80211_TX_CTL_REQ_TX_STATUS |
 		      IEEE80211_TX_CTL_INJECTED;
 
-	/* process and remove the injection radiotap header */
-	if (!ieee80211_parse_tx_radiotap(skb))
-		goto fail;
-
 	rcu_read_lock();
 
 	/*
···
 		goto fail_rcu;
 
 	info->band = chandef->chan->band;
+
+	/* process and remove the injection radiotap header */
+	if (!ieee80211_parse_tx_radiotap(local, skb))
+		goto fail_rcu;
+
 	ieee80211_xmit(sdata, NULL, skb);
 	rcu_read_unlock();
 
···
 					mpp_lookup = true;
 			}
 
-			if (mpp_lookup)
+			if (mpp_lookup) {
 				mppath = mpp_path_lookup(sdata, skb->data);
+				if (mppath)
+					mppath->exp_time = jiffies;
+			}
 
 			if (mppath && mpath)
 				mesh_path_del(mpath->sdata, mpath->dst);

net/mac80211/util.c

···
  * Copyright 2006-2007	Jiri Benc <[e-mail]>
  * Copyright 2007	Johannes Berg <[e-mail]>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
- * Copyright (C) 2015	Intel Deutschland GmbH
+ * Copyright (C) 2015-2016	Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
 			  BSS_CHANGED_IDLE |
 			  BSS_CHANGED_TXPOWER;
 
+		if (sdata->vif.mu_mimo_owner)
+			changed |= BSS_CHANGED_MU_GROUPS;
+
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_STATION:
 			changed |= BSS_CHANGED_ASSOC |
···
 
 	switch (chandef->width) {
 	case NL80211_CHAN_WIDTH_160:
-		vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_160MHZ;
+		/*
+		 * Convert 160 MHz channel width to new style as interop
+		 * workaround.
+		 */
+		vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
+		vht_oper->center_freq_seg2_idx = vht_oper->center_freq_seg1_idx;
+		if (chandef->chan->center_freq < chandef->center_freq1)
+			vht_oper->center_freq_seg1_idx -= 8;
+		else
+			vht_oper->center_freq_seg1_idx += 8;
 		break;
 	case NL80211_CHAN_WIDTH_80P80:
-		vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80P80MHZ;
+		/*
+		 * Convert 80+80 MHz channel width to new style as interop
+		 * workaround.
+		 */
+		vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
 		break;
 	case NL80211_CHAN_WIDTH_80:
 		vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
···
 	return pos + sizeof(struct ieee80211_vht_operation);
 }
 
-void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
-				  const struct ieee80211_ht_operation *ht_oper,
-				  struct cfg80211_chan_def *chandef)
+bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
+			       struct cfg80211_chan_def *chandef)
 {
 	enum nl80211_channel_type channel_type;
 
-	if (!ht_oper) {
-		cfg80211_chandef_create(chandef, control_chan,
-					NL80211_CHAN_NO_HT);
-		return;
-	}
+	if (!ht_oper)
+		return false;
 
 	switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
 	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
···
 		break;
 	default:
 		channel_type = NL80211_CHAN_NO_HT;
+		return false;
 	}
 
-	cfg80211_chandef_create(chandef, control_chan, channel_type);
+	cfg80211_chandef_create(chandef, chandef->chan, channel_type);
+	return true;
 }
 
-void ieee80211_vht_oper_to_chandef(struct ieee80211_channel *control_chan,
-				   const struct ieee80211_vht_operation *oper,
-				   struct cfg80211_chan_def *chandef)
+bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper,
+				struct cfg80211_chan_def *chandef)
 {
-	if (!oper)
-		return;
+	struct cfg80211_chan_def new = *chandef;
+	int cf1, cf2;
 
-	chandef->chan = control_chan;
+	if (!oper)
+		return false;
+
+	cf1 = ieee80211_channel_to_frequency(oper->center_freq_seg1_idx,
+					     chandef->chan->band);
+	cf2 = ieee80211_channel_to_frequency(oper->center_freq_seg2_idx,
+					     chandef->chan->band);
 
 	switch (oper->chan_width) {
 	case IEEE80211_VHT_CHANWIDTH_USE_HT:
 		break;
 	case IEEE80211_VHT_CHANWIDTH_80MHZ:
-		chandef->width = NL80211_CHAN_WIDTH_80;
+		new.width = NL80211_CHAN_WIDTH_80;
+		new.center_freq1 = cf1;
+		/* If needed, adjust based on the newer interop workaround. */
+		if (oper->center_freq_seg2_idx) {
+			unsigned int diff;
+
+			diff = abs(oper->center_freq_seg2_idx -
+				   oper->center_freq_seg1_idx);
+			if (diff == 8) {
+				new.width = NL80211_CHAN_WIDTH_160;
+				new.center_freq1 = cf2;
+			} else if (diff > 8) {
+				new.width = NL80211_CHAN_WIDTH_80P80;
+				new.center_freq2 = cf2;
+			}
+		}
 		break;
 	case IEEE80211_VHT_CHANWIDTH_160MHZ:
-		chandef->width = NL80211_CHAN_WIDTH_160;
+		new.width = NL80211_CHAN_WIDTH_160;
+		new.center_freq1 = cf1;
 		break;
 	case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
-		chandef->width = NL80211_CHAN_WIDTH_80P80;
+		new.width = NL80211_CHAN_WIDTH_80P80;
+		new.center_freq1 = cf1;
+		new.center_freq2 = cf2;
 		break;
 	default:
-		break;
+		return false;
 	}
 
-	chandef->center_freq1 =
-		ieee80211_channel_to_frequency(oper->center_freq_seg1_idx,
-					       control_chan->band);
-	chandef->center_freq2 =
-		ieee80211_channel_to_frequency(oper->center_freq_seg2_idx,
-					       control_chan->band);
+	if (!cfg80211_chandef_valid(&new))
+		return false;
+
+	*chandef = new;
+	return true;
 }
 
 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
···
 		sband = local->hw.wiphy->bands[status->band];
 		bitrate = sband->bitrates[status->rate_idx].bitrate;
 		ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift));
+
+		if (status->flag & RX_FLAG_MACTIME_PLCP_START) {
+			/* TODO: handle HT/VHT preambles */
+			if (status->band == IEEE80211_BAND_5GHZ) {
+				ts += 20 << shift;
+				mpdu_offset += 2;
+			} else if (status->flag & RX_FLAG_SHORTPRE) {
+				ts += 96;
+			} else {
+				ts += 192;
+			}
+		}
 	}
 
 	rate = cfg80211_calculate_bitrate(&ri);
···
 		txqi->txq.ac = IEEE80211_AC_BE;
 	}
 }
+
+void ieee80211_txq_get_depth(struct ieee80211_txq *txq,
+			     unsigned long *frame_cnt,
+			     unsigned long *byte_cnt)
+{
+	struct txq_info *txqi = to_txq_info(txq);
+
+	if (frame_cnt)
+		*frame_cnt = txqi->queue.qlen;
+
+	if (byte_cnt)
+		*byte_cnt = txqi->byte_cnt;
+}
+EXPORT_SYMBOL(ieee80211_txq_get_depth);

net/mac80211/vht.c

···
 /*
  * VHT handling
  *
+ * Portions of this file
+ * Copyright(c) 2015 - 2016 Intel Deutschland GmbH
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
···
 	}
 
 	sta->sta.bandwidth = ieee80211_sta_cur_vht_bw(sta);
+
+	/* If HT IE reported 3839 bytes only, stay with that size. */
+	if (sta->sta.max_amsdu_len == IEEE80211_MAX_MPDU_LEN_HT_3839)
+		return;
+
+	switch (vht_cap->cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK) {
+	case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
+		sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_11454;
+		break;
+	case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
+		sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_7991;
+		break;
+	case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
+	default:
+		sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_3895;
+		break;
+	}
 }
 
 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta)
···
 
 	return changed;
 }
+
+void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
+				 struct ieee80211_mgmt *mgmt)
+{
+	struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
+
+	if (!sdata->vif.mu_mimo_owner)
+		return;
+
+	if (!memcmp(mgmt->u.action.u.vht_group_notif.position,
+		    bss_conf->mu_group.position, WLAN_USER_POSITION_LEN) &&
+	    !memcmp(mgmt->u.action.u.vht_group_notif.membership,
+		    bss_conf->mu_group.membership, WLAN_MEMBERSHIP_LEN))
+		return;
+
+	memcpy(bss_conf->mu_group.membership,
+	       mgmt->u.action.u.vht_group_notif.membership,
+	       WLAN_MEMBERSHIP_LEN);
+	memcpy(bss_conf->mu_group.position,
+	       mgmt->u.action.u.vht_group_notif.position,
+	       WLAN_USER_POSITION_LEN);
+
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
+}
+
+void ieee80211_update_mu_groups(struct ieee80211_vif *vif,
+				const u8 *membership, const u8 *position)
+{
+	struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+
+	if (WARN_ON_ONCE(!vif->mu_mimo_owner))
+		return;
+
+	memcpy(bss_conf->mu_group.membership, membership, WLAN_MEMBERSHIP_LEN);
+	memcpy(bss_conf->mu_group.position, position, WLAN_USER_POSITION_LEN);
+}
+EXPORT_SYMBOL_GPL(ieee80211_update_mu_groups);
 
 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 				 struct sta_info *sta, u8 opmode,

net/mac80211/wpa.c

···
 /*
  * Copyright 2002-2004, Instant802 Networks, Inc.
  * Copyright 2008, Jouni Malinen <[e-mail]>
+ * Copyright (C) 2016 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
 	return RX_DROP_UNUSABLE;
 }
 
-
 static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
···
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	unsigned int hdrlen;
 	int len, tail;
+	u64 pn;
 	u8 *pos;
 
 	if (info->control.hw_key &&
···
 		return 0;
 
 	/* Increase IV for the frame */
-	spin_lock(&key->u.tkip.txlock);
-	key->u.tkip.tx.iv16++;
-	if (key->u.tkip.tx.iv16 == 0)
-		key->u.tkip.tx.iv32++;
-	pos = ieee80211_tkip_add_iv(pos, key);
-	spin_unlock(&key->u.tkip.txlock);
+	pn = atomic64_inc_return(&key->conf.tx_pn);
+	pos = ieee80211_tkip_add_iv(pos, &key->conf, pn);
 
 	/* hwaccel - with software IV */
 	if (info->control.hw_key)

net/rfkill/Kconfig

···
 	default n
 	help
 	  If you say yes here you get support of a generic gpio RFKILL
-	  driver. The platform should fill in the appropriate fields in the
-	  rfkill_gpio_platform_data structure and pass that to the driver.
+	  driver.

net/rfkill/core.c

···
 
 	bool			registered;
 	bool			persistent;
+	bool			polling_paused;
+	bool			suspended;
 
 	const struct rfkill_ops	*ops;
 	void			*data;
···
 	rfkill_send_events(rfkill, RFKILL_OP_CHANGE);
 }
 
-static bool __rfkill_set_hw_state(struct rfkill *rfkill,
-				  bool blocked, bool *change)
-{
-	unsigned long flags;
-	bool prev, any;
-
-	BUG_ON(!rfkill);
-
-	spin_lock_irqsave(&rfkill->lock, flags);
-	prev = !!(rfkill->state & RFKILL_BLOCK_HW);
-	if (blocked)
-		rfkill->state |= RFKILL_BLOCK_HW;
-	else
-		rfkill->state &= ~RFKILL_BLOCK_HW;
-	*change = prev != blocked;
-	any = !!(rfkill->state & RFKILL_BLOCK_ANY);
-	spin_unlock_irqrestore(&rfkill->lock, flags);
-
-	rfkill_led_trigger_event(rfkill);
-
-	return any;
-}
-
 /**
  * rfkill_set_block - wrapper for set_block method
  *
···
 	spin_lock_irqsave(&rfkill->lock, flags);
 	prev = rfkill->state & RFKILL_BLOCK_SW;
 
-	if (rfkill->state & RFKILL_BLOCK_SW)
+	if (prev)
 		rfkill->state |= RFKILL_BLOCK_SW_PREV;
 	else
 		rfkill->state &= ~RFKILL_BLOCK_SW_PREV;
···
 	spin_lock_irqsave(&rfkill->lock, flags);
 	if (err) {
 		/*
-		 * Failed -- reset status to _prev, this may be different
-		 * from what set set _PREV to earlier in this function
+		 * Failed -- reset status to _PREV, which may be different
+		 * from what we have set _PREV to earlier in this function
 		 * if rfkill_set_sw_state was invoked.
 		 */
 		if (rfkill->state & RFKILL_BLOCK_SW_PREV)
···
 		rfkill_event(rfkill);
 }
 
+static void rfkill_update_global_state(enum rfkill_type type, bool blocked)
+{
+	int i;
+
+	if (type != RFKILL_TYPE_ALL) {
+		rfkill_global_states[type].cur = blocked;
+		return;
+	}
+
+	for (i = 0; i < NUM_RFKILL_TYPES; i++)
+		rfkill_global_states[i].cur = blocked;
+}
+
 #ifdef CONFIG_RFKILL_INPUT
 static atomic_t rfkill_input_disabled = ATOMIC_INIT(0);
 
···
  * @blocked: the new state
  *
  * This function sets the state of all switches of given type,
- * unless a specific switch is claimed by userspace (in which case,
- * that switch is left alone) or suspended.
+ * unless a specific switch is suspended.
  *
  * Caller must have acquired rfkill_global_mutex.
  */
···
 {
 	struct rfkill *rfkill;
 
-	if (type == RFKILL_TYPE_ALL) {
-		int i;
-
-		for (i = 0; i < NUM_RFKILL_TYPES; i++)
-			rfkill_global_states[i].cur = blocked;
-	} else {
-		rfkill_global_states[type].cur = blocked;
-	}
-
+	rfkill_update_global_state(type, blocked);
 	list_for_each_entry(rfkill, &rfkill_list, node) {
 		if (rfkill->type != type && type != RFKILL_TYPE_ALL)
 			continue;
···
 }
 #endif
 
-
 bool rfkill_set_hw_state(struct rfkill *rfkill, bool blocked)
 {
-	bool ret, change;
+	unsigned long flags;
+	bool ret, prev;
 
-	ret = __rfkill_set_hw_state(rfkill, blocked, &change);
+	BUG_ON(!rfkill);
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	prev = !!(rfkill->state & RFKILL_BLOCK_HW);
+	if (blocked)
+		rfkill->state |= RFKILL_BLOCK_HW;
+	else
+		rfkill->state &= ~RFKILL_BLOCK_HW;
+	ret = !!(rfkill->state & RFKILL_BLOCK_ANY);
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	rfkill_led_trigger_event(rfkill);
 
 	if (!rfkill->registered)
 		return ret;
 
-	if (change)
+	if (prev != blocked)
 		schedule_work(&rfkill->uevent_work);
 
 	return ret;
···
 }
 EXPORT_SYMBOL(rfkill_set_states);
 
+static const char * const rfkill_types[] = {
+	NULL, /* RFKILL_TYPE_ALL */
+	"wlan",
+	"bluetooth",
+	"ultrawideband",
+	"wimax",
+	"wwan",
+	"gps",
+	"fm",
+	"nfc",
+};
+
+enum rfkill_type rfkill_find_type(const char *name)
+{
+	int i;
+
+	BUILD_BUG_ON(ARRAY_SIZE(rfkill_types) != NUM_RFKILL_TYPES);
+
+	if (!name)
+		return RFKILL_TYPE_ALL;
+
+	for (i = 1; i < NUM_RFKILL_TYPES; i++)
+		if (!strcmp(name, rfkill_types[i]))
+			return i;
+	return RFKILL_TYPE_ALL;
+}
+EXPORT_SYMBOL(rfkill_find_type);
+
 static ssize_t name_show(struct device *dev, struct device_attribute *attr,
 			 char *buf)
 {
···
 }
 static DEVICE_ATTR_RO(name);
 
-static const char *rfkill_get_type_str(enum rfkill_type type)
-{
-	BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_NFC + 1);
-
-	switch (type) {
-	case RFKILL_TYPE_WLAN:
-		return "wlan";
-	case RFKILL_TYPE_BLUETOOTH:
-		return "bluetooth";
-	case RFKILL_TYPE_UWB:
-		return "ultrawideband";
-	case RFKILL_TYPE_WIMAX:
-		return "wimax";
-	case RFKILL_TYPE_WWAN:
-		return "wwan";
-	case RFKILL_TYPE_GPS:
-		return "gps";
-	case RFKILL_TYPE_FM:
-		return "fm";
-	case RFKILL_TYPE_NFC:
-		return "nfc";
-	default:
-		BUG();
-	}
-}
-
 static ssize_t type_show(struct device *dev, struct device_attribute *attr,
 			 char *buf)
 {
 	struct rfkill *rfkill = to_rfkill(dev);
 
-	return sprintf(buf, "%s\n", rfkill_get_type_str(rfkill->type));
+	return sprintf(buf, "%s\n", rfkill_types[rfkill->type]);
 }
 static DEVICE_ATTR_RO(type);
 
···
 }
 static DEVICE_ATTR_RW(state);
 
-static ssize_t claim_show(struct device *dev, struct device_attribute *attr,
-			  char *buf)
-{
-	return sprintf(buf, "%d\n", 0);
-}
-static DEVICE_ATTR_RO(claim);
-
 static struct attribute *rfkill_dev_attrs[] = {
 	&dev_attr_name.attr,
 	&dev_attr_type.attr,
 	&dev_attr_index.attr,
 	&dev_attr_persistent.attr,
 	&dev_attr_state.attr,
-	&dev_attr_claim.attr,
 	&dev_attr_soft.attr,
 	&dev_attr_hard.attr,
 	NULL,
···
 	if (error)
 		return error;
 	error = add_uevent_var(env, "RFKILL_TYPE=%s",
-			       rfkill_get_type_str(rfkill->type));
+			       rfkill_types[rfkill->type]);
 	if (error)
 		return error;
 	spin_lock_irqsave(&rfkill->lock, flags);
···
 	if (!rfkill->ops->poll)
 		return;
 
+	rfkill->polling_paused = true;
 	cancel_delayed_work_sync(&rfkill->poll_work);
 }
 EXPORT_SYMBOL(rfkill_pause_polling);
···
 	BUG_ON(!rfkill);
 
 	if (!rfkill->ops->poll)
+		return;
+
+	rfkill->polling_paused = false;
+
+	if (rfkill->suspended)
 		return;
 
 	queue_delayed_work(system_power_efficient_wq,
···
 {
 	struct rfkill *rfkill = to_rfkill(dev);
 
-	rfkill_pause_polling(rfkill);
+	rfkill->suspended = true;
+	cancel_delayed_work_sync(&rfkill->poll_work);
 
 	return 0;
 }
···
 	struct rfkill *rfkill = to_rfkill(dev);
 	bool cur;
 
+	rfkill->suspended = false;
+
 	if (!rfkill->persistent) {
 		cur = !!(rfkill->state & RFKILL_BLOCK_SW);
 		rfkill_set_block(rfkill, cur);
 	}
 
-	rfkill_resume_polling(rfkill);
+	if (rfkill->ops->poll && !rfkill->polling_paused)
+		queue_delayed_work(system_power_efficient_wq,
+				   &rfkill->poll_work, 0);
 
 	return 0;
 }
···
 
 	mutex_lock(&rfkill_global_mutex);
 
-	if (ev.op == RFKILL_OP_CHANGE_ALL) {
-		if (ev.type == RFKILL_TYPE_ALL) {
-			enum rfkill_type i;
-			for (i = 0; i < NUM_RFKILL_TYPES; i++)
-				rfkill_global_states[i].cur = ev.soft;
-		} else {
-			rfkill_global_states[ev.type].cur = ev.soft;
-		}
-	}
+	if (ev.op == RFKILL_OP_CHANGE_ALL)
+		rfkill_update_global_state(ev.type, ev.soft);
 
 	list_for_each_entry(rfkill, &rfkill_list, node) {
 		if (rfkill->idx != ev.idx && ev.op != RFKILL_OP_CHANGE_ALL)
···
 static int __init rfkill_init(void)
 {
 	int error;
-	int i;
 
-	for (i = 0; i < NUM_RFKILL_TYPES; i++)
-		rfkill_global_states[i].cur = !rfkill_default_state;
+	rfkill_update_global_state(RFKILL_TYPE_ALL, !rfkill_default_state);
 
 	error = class_register(&rfkill_class);
 	if (error)

net/rfkill/rfkill-gpio.c

···
 #include <linux/acpi.h>
 #include <linux/gpio/consumer.h>
 
-#include <linux/rfkill-gpio.h>
-
 struct rfkill_gpio_data {
 	const char		*name;
 	enum rfkill_type	type;
···
 	if (!id)
 		return -ENODEV;
 
-	rfkill->name = dev_name(dev);
 	rfkill->type = (unsigned)id->driver_data;
 
 	return acpi_dev_add_driver_gpios(ACPI_COMPANION(dev),
···
 
 static int rfkill_gpio_probe(struct platform_device *pdev)
 {
-	struct rfkill_gpio_platform_data *pdata = pdev->dev.platform_data;
 	struct rfkill_gpio_data *rfkill;
 	struct gpio_desc *gpio;
+	const char *type_name;
 	int ret;
 
 	rfkill = devm_kzalloc(&pdev->dev, sizeof(*rfkill), GFP_KERNEL);
 	if (!rfkill)
 		return -ENOMEM;
 
+	device_property_read_string(&pdev->dev, "name", &rfkill->name);
+	device_property_read_string(&pdev->dev, "type", &type_name);
+
+	if (!rfkill->name)
+		rfkill->name = dev_name(&pdev->dev);
+
+	rfkill->type = rfkill_find_type(type_name);
+
 	if (ACPI_HANDLE(&pdev->dev)) {
 		ret = rfkill_gpio_acpi_probe(&pdev->dev, rfkill);
 		if (ret)
 			return ret;
-	} else if (pdata) {
-		rfkill->name = pdata->name;
-		rfkill->type = pdata->type;
-	} else {
-		return -ENODEV;
 	}
 
 	rfkill->clk = devm_clk_get(&pdev->dev, NULL);
···
 
 	rfkill->shutdown_gpio = gpio;
 
-	/* Make sure at-least one of the GPIO is defined and that
-	 * a name is specified for this instance
-	 */
-	if ((!rfkill->reset_gpio && !rfkill->shutdown_gpio) || !rfkill->name) {
+	/* Make sure at-least one GPIO is defined for this instance */
+	if (!rfkill->reset_gpio && !rfkill->shutdown_gpio) {
 		dev_err(&pdev->dev, "invalid platform data\n");
 		return -EINVAL;
 	}

net/wireless/Kconfig

···
 	default n
 	help
 	  This option enables some additional warnings that help
-	  cfg80211 developers and driver developers, but that can
-	  trigger due to races with userspace.
+	  cfg80211 developers and driver developers, but beware that
+	  they can also trigger due to races with userspace.
 
 	  For example, when a driver reports that it was disconnected
 	  from the AP, but the user disconnects manually at the same
···
 	  Say Y only if you are developing cfg80211 or a driver based
 	  on it (or mac80211).
 
-
-config CFG80211_REG_DEBUG
-	bool "cfg80211 regulatory debugging"
-	depends on CFG80211
-	default n
-	---help---
-	  You can enable this if you want to debug regulatory changes.
-	  For more information on cfg80211 regulatory refer to the wireless
-	  wiki:
-
-	  http://wireless.kernel.org/en/developers/Regulatory
-
-	  If unsure, say N.
 
 config CFG80211_CERTIFICATION_ONUS
 	bool "cfg80211 certification onus"
···
 	 interface which associated to an AP which userspace assumes or confirms
 	 to be an authorized master, i.e., with radar detection support and DFS
 	 capabilities. However, note that in order to not create daisy chain
-	 scenarios, this relaxation is not allowed in cases that the BSS client
+	 scenarios, this relaxation is not allowed in cases where the BSS client
 	 is associated to P2P GO and in addition the P2P GO instantiated on
 	 a channel due to this relaxation should not allow connection from
 	 non P2P clients.
···
 	depends on CFG80211
 	depends on DEBUG_FS
 	---help---
-	  You can enable this if you want to debugfs entries for cfg80211.
+	  You can enable this if you want debugfs entries for cfg80211.
 
 	  If unsure, say N.
 
···
 	---help---
 	  This option generates an internal data structure representing
 	  the wireless regulatory rules described in net/wireless/db.txt
-	  and includes code to query that database.  This is an alternative
+	  and includes code to query that database. This is an alternative
 	  to using CRDA for defining regulatory rules for the kernel.
 
 	  Using this option requires some parsing of the db.txt at build time,
···
 
 	  http://wireless.kernel.org/en/developers/Regulatory
 
-	  Most distributions have a CRDA package.  So if unsure, say N.
+	  Most distributions have a CRDA package. So if unsure, say N.
 
 config CFG80211_CRDA_SUPPORT
 	bool "support CRDA" if CFG80211_INTERNAL_REGDB

net/wireless/core.c

···
 	WARN_ON(ops->add_station && !ops->del_station);
 	WARN_ON(ops->add_mpath && !ops->del_mpath);
 	WARN_ON(ops->join_mesh && !ops->leave_mesh);
+	WARN_ON(ops->start_p2p_device && !ops->stop_p2p_device);
+	WARN_ON(ops->start_ap && !ops->stop_ap);
+	WARN_ON(ops->join_ocb && !ops->leave_ocb);
+	WARN_ON(ops->suspend && !ops->resume);
+	WARN_ON(ops->sched_scan_start && !ops->sched_scan_stop);
+	WARN_ON(ops->remain_on_channel && !ops->cancel_remain_on_channel);
+	WARN_ON(ops->tdls_channel_switch && !ops->tdls_cancel_channel_switch);
+	WARN_ON(ops->add_tx_ts && !ops->del_tx_ts);
+	WARN_ON(ops->set_tx_power && !ops->get_tx_power);
+	WARN_ON(ops->set_antenna && !ops->get_antenna);
 
 	alloc_size = sizeof(*rdev) + sizeof_priv;
 

net/wireless/mlme.c

···
 
 void cfg80211_dfs_channels_update_work(struct work_struct *work)
 {
-	struct delayed_work *delayed_work;
+	struct delayed_work *delayed_work = to_delayed_work(work);
 	struct cfg80211_registered_device *rdev;
 	struct cfg80211_chan_def chandef;
 	struct ieee80211_supported_band *sband;
···
 	unsigned long timeout, next_time = 0;
 	int bandid, i;
 
-	delayed_work = container_of(work, struct delayed_work, work);
 	rdev = container_of(delayed_work, struct cfg80211_registered_device,
 			    dfs_update_channels_wk);
 	wiphy = &rdev->wiphy;

net/wireless/nl80211.c

···
  *
  * Copyright 2006-2010	Johannes Berg <[e-mail]>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
- * Copyright 2015	Intel Deutschland GmbH
+ * Copyright 2015-2016	Intel Deutschland GmbH
  */
 
 #include <linux/if.h>
···
 	[NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
 	[NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
 	[NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
+	[NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
 };
 
 /* policy for the key attributes */
···
 		if (IS_ERR(params.acl))
 			return PTR_ERR(params.acl);
 	}
+
+	params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
+	if (params.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ])
+		return -EOPNOTSUPP;
 
 	wdev_lock(wdev);
 	err = rdev_start_ap(rdev, dev, &params);
···
 	}
 
 	if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
-		if (!(rdev->wiphy.features &
-		      NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
-		    !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
+		if (!((rdev->wiphy.features &
+			NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
+		       (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
+		    !wiphy_ext_feature_isset(&rdev->wiphy,
+					     NL80211_EXT_FEATURE_RRM))
 			return -EINVAL;
 		req.flags |= ASSOC_REQ_USE_RRM;
 	}
···
 	}
 
 	if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
-		if (!(rdev->wiphy.features &
-		      NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
-		    !(rdev->wiphy.features & NL80211_FEATURE_QUIET)) {
+		if (!((rdev->wiphy.features &
+			NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
+		       (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
+		    !wiphy_ext_feature_isset(&rdev->wiphy,
+					     NL80211_EXT_FEATURE_RRM)) {
 			kzfree(connkeys);
 			return -EINVAL;
 		}
 		connect.flags |= ASSOC_REQ_USE_RRM;
+	}
+
+	connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
+	if (connect.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ]) {
+		kzfree(connkeys);
+		return -EOPNOTSUPP;
 	}
 
 	wdev_lock(dev->ieee80211_ptr);

net/wireless/radiotap.c

···
 	[IEEE80211_RADIOTAP_DATA_RETRIES] = { .align = 1, .size = 1, },
 	[IEEE80211_RADIOTAP_MCS] = { .align = 1, .size = 3, },
 	[IEEE80211_RADIOTAP_AMPDU_STATUS] = { .align = 4, .size = 8, },
+	[IEEE80211_RADIOTAP_VHT] = { .align = 2, .size = 12, },
 	/*
 	 * add more here as they are defined in radiotap.h
 	 */

net/wireless/reg.c

···
 #include "regdb.h"
 #include "nl80211.h"
 
-#ifdef CONFIG_CFG80211_REG_DEBUG
-#define REG_DBG_PRINT(format, args...)			\
-	printk(KERN_DEBUG pr_fmt(format), ##args)
-#else
-#define REG_DBG_PRINT(args...)
-#endif
-
 /*
  * Grace period we give before making sure all current interfaces reside on
  * channels allowed by the current regulatory domain.
···
 	if (wiphy_regd->dfs_region == regd->dfs_region)
 		goto out;
 
-	REG_DBG_PRINT("%s: device specific dfs_region "
-		      "(%s) disagrees with cfg80211's "
-		      "central dfs_region (%s)\n",
-		      dev_name(&wiphy->dev),
-		      reg_dfs_region_str(wiphy_regd->dfs_region),
-		      reg_dfs_region_str(regd->dfs_region));
+	pr_debug("%s: device specific dfs_region (%s) disagrees with cfg80211's central dfs_region (%s)\n",
+		 dev_name(&wiphy->dev),
+		 reg_dfs_region_str(wiphy_regd->dfs_region),
+		 reg_dfs_region_str(regd->dfs_region));
 
 out:
 	return regd->dfs_region;
···
 
 static void crda_timeout_work(struct work_struct *work)
 {
-	REG_DBG_PRINT("Timeout while waiting for CRDA to reply, restoring regulatory settings\n");
+	pr_debug("Timeout while waiting for CRDA to reply, restoring regulatory settings\n");
 	rtnl_lock();
 	reg_crda_timeouts++;
 	restore_regulatory_settings(true);
···
 
 	if (!is_world_regdom((char *) alpha2))
 		pr_debug("Calling CRDA for country: %c%c\n",
-			alpha2[0], alpha2[1]);
+			 alpha2[0], alpha2[1]);
 	else
 		pr_debug("Calling CRDA to update world regulatory domain\n");
 
···
 }
 EXPORT_SYMBOL(reg_initiator_name);
 
-static void chan_reg_rule_print_dbg(const struct ieee80211_regdomain *regd,
-				    struct ieee80211_channel *chan,
-				    const struct ieee80211_reg_rule *reg_rule)
-{
-#ifdef CONFIG_CFG80211_REG_DEBUG
-	const struct ieee80211_power_rule *power_rule;
-	const struct ieee80211_freq_range *freq_range;
-	char max_antenna_gain[32], bw[32];
-
-	power_rule = &reg_rule->power_rule;
-	freq_range = &reg_rule->freq_range;
-
-	if (!power_rule->max_antenna_gain)
-		snprintf(max_antenna_gain, sizeof(max_antenna_gain), "N/A");
-	else
-		snprintf(max_antenna_gain, sizeof(max_antenna_gain), "%d mBi",
-			 power_rule->max_antenna_gain);
-
-	if (reg_rule->flags & NL80211_RRF_AUTO_BW)
-		snprintf(bw, sizeof(bw), "%d KHz, %d KHz AUTO",
-			 freq_range->max_bandwidth_khz,
-			 reg_get_max_bandwidth(regd, reg_rule));
-	else
-		snprintf(bw, sizeof(bw), "%d KHz",
-			 freq_range->max_bandwidth_khz);
-
-	REG_DBG_PRINT("Updating information on frequency %d MHz with regulatory rule:\n",
-		      chan->center_freq);
-
-	REG_DBG_PRINT("(%d KHz - %d KHz @ %s), (%s, %d mBm)\n",
-		      freq_range->start_freq_khz, freq_range->end_freq_khz,
-		      bw, max_antenna_gain,
-		      power_rule->max_eirp);
-#endif
-}
-
 static uint32_t reg_rule_to_chan_bw_flags(const struct ieee80211_regdomain *regd,
 					  const struct ieee80211_reg_rule *reg_rule,
 					  const struct ieee80211_channel *chan)
···
 		if (lr->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
 		    request_wiphy && request_wiphy == wiphy &&
 		    request_wiphy->regulatory_flags & REGULATORY_STRICT_REG) {
-			REG_DBG_PRINT("Disabling freq %d MHz for good\n",
-				      chan->center_freq);
+			pr_debug("Disabling freq %d MHz for good\n",
+				 chan->center_freq);
 			chan->orig_flags |= IEEE80211_CHAN_DISABLED;
 			chan->flags = chan->orig_flags;
 		} else {
-			REG_DBG_PRINT("Disabling freq %d MHz\n",
-				      chan->center_freq);
+			pr_debug("Disabling freq %d MHz\n",
+				 chan->center_freq);
 			chan->flags |= IEEE80211_CHAN_DISABLED;
 		}
 		return;
 	}
 
 	regd = reg_get_regdomain(wiphy);
-	chan_reg_rule_print_dbg(regd, chan, reg_rule);
 
 	power_rule = &reg_rule->power_rule;
 	bw_flags = reg_rule_to_chan_bw_flags(regd, reg_rule, chan);
···
 		return true;
 
 	if (!lr) {
-		REG_DBG_PRINT("Ignoring regulatory request set by %s "
-			      "since last_request is not set\n",
-			      reg_initiator_name(initiator));
+		pr_debug("Ignoring regulatory request set by %s since last_request is not set\n",
+			 reg_initiator_name(initiator));
 		return true;
 	}
 
 	if (initiator == NL80211_REGDOM_SET_BY_CORE &&
 	    wiphy->regulatory_flags & REGULATORY_CUSTOM_REG) {
-		REG_DBG_PRINT("Ignoring regulatory request set by %s "
-			      "since the driver uses its own custom "
-			      "regulatory domain\n",
-			      reg_initiator_name(initiator));
+		pr_debug("Ignoring regulatory request set by %s since the driver uses its own custom regulatory domain\n",
+			 reg_initiator_name(initiator));
 		return true;
 	}
 
···
 	if (wiphy_strict_alpha2_regd(wiphy) && !wiphy->regd &&
 	    initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
 	    !is_world_regdom(lr->alpha2)) {
-		REG_DBG_PRINT("Ignoring regulatory request set by %s "
-			      "since the driver requires its own regulatory "
-			      "domain to be set first\n",
-			      reg_initiator_name(initiator));
+		pr_debug("Ignoring regulatory request set by %s since the driver requires its own regulatory domain to be set first\n",
+			 reg_initiator_name(initiator));
 		return true;
 	}
 
···
 {
 	struct cfg80211_registered_device *rdev;
 
-	REG_DBG_PRINT("Verifying active interfaces after reg change\n");
+	pr_debug("Verifying active interfaces after reg change\n");
 	rtnl_lock();
 
 	list_for_each_entry(rdev, &cfg80211_rdev_list, list)
···
 	}
 
 	if (IS_ERR(reg_rule)) {
-		REG_DBG_PRINT("Disabling freq %d MHz as custom regd has no rule that fits it\n",
-			      chan->center_freq);
+		pr_debug("Disabling freq %d MHz as custom regd has no rule that fits it\n",
+			 chan->center_freq);
 		if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) {
 			chan->flags |= IEEE80211_CHAN_DISABLED;
 		} else {
···
 		}
 		return;
 	}
-
-	chan_reg_rule_print_dbg(regd, chan, reg_rule);
 
 	power_rule = &reg_rule->power_rule;
 	bw_flags = reg_rule_to_chan_bw_flags(regd, reg_rule, chan);
···
 	if (is_user_regdom_saved()) {
 		/* Unless we're asked to ignore it and reset it */
 		if (reset_user) {
-			REG_DBG_PRINT("Restoring regulatory settings including user preference\n");
+			pr_debug("Restoring regulatory settings including user preference\n");
 			user_alpha2[0] = '9';
 			user_alpha2[1] = '7';
 
···
 			 * back as they were for a full restore.
 			 */
 			if (!is_world_regdom(ieee80211_regdom)) {
-				REG_DBG_PRINT("Keeping preference on module parameter ieee80211_regdom: %c%c\n",
-					      ieee80211_regdom[0], ieee80211_regdom[1]);
+				pr_debug("Keeping preference on module parameter ieee80211_regdom: %c%c\n",
+					 ieee80211_regdom[0], ieee80211_regdom[1]);
 				alpha2[0] = ieee80211_regdom[0];
 				alpha2[1] = ieee80211_regdom[1];
 			}
 		} else {
-			REG_DBG_PRINT("Restoring regulatory settings while preserving user preference for: %c%c\n",
-				      user_alpha2[0], user_alpha2[1]);
+			pr_debug("Restoring regulatory settings while preserving user preference for: %c%c\n",
+				 user_alpha2[0], user_alpha2[1]);
 			alpha2[0] = user_alpha2[0];
 			alpha2[1] = user_alpha2[1];
 		}
 	} else if (!is_world_regdom(ieee80211_regdom)) {
-		REG_DBG_PRINT("Keeping preference on module parameter ieee80211_regdom: %c%c\n",
-			      ieee80211_regdom[0], ieee80211_regdom[1]);
+		pr_debug("Keeping preference on module parameter ieee80211_regdom: %c%c\n",
+			 ieee80211_regdom[0], ieee80211_regdom[1]);
 		alpha2[0] = ieee80211_regdom[0];
 		alpha2[1] = ieee80211_regdom[1];
 	} else
-		REG_DBG_PRINT("Restoring regulatory settings\n");
+		pr_debug("Restoring regulatory settings\n");
 }
 
 static void restore_custom_reg_settings(struct wiphy *wiphy)
···
 	list_splice_tail_init(&tmp_reg_req_list, &reg_requests_list);
 	spin_unlock(&reg_requests_lock);
 
-	REG_DBG_PRINT("Kicking the queue\n");
+	pr_debug("Kicking the queue\n");
 
 	schedule_work(&reg_work);
 }
 
 void regulatory_hint_disconnect(void)
 {
-	REG_DBG_PRINT("All devices are disconnected, going to restore regulatory settings\n");
+	pr_debug("All devices are disconnected, going to restore regulatory settings\n");
 	restore_regulatory_settings(false);
 }
 
···
 	if (!reg_beacon)
 		return -ENOMEM;
 
-	REG_DBG_PRINT("Found new beacon on frequency: %d MHz (Ch %d) on %s\n",
-		      beacon_chan->center_freq,
-		      ieee80211_frequency_to_channel(beacon_chan->center_freq),
-		      wiphy_name(wiphy));
+	pr_debug("Found new beacon on frequency: %d MHz (Ch %d) on %s\n",
+		 beacon_chan->center_freq,
+		 ieee80211_frequency_to_channel(beacon_chan->center_freq),
+		 wiphy_name(wiphy));
 
 	memcpy(&reg_beacon->chan, beacon_chan,
 	       sizeof(struct ieee80211_channel));
···
 	case NL80211_DFS_JP:
 		return true;
 	default:
-		REG_DBG_PRINT("Ignoring uknown DFS master region: %d\n",
-			      dfs_region);
+		pr_debug("Ignoring uknown DFS master region: %d\n", dfs_region);
 		return false;
 	}
 }

net/wireless/sme.c

···
 			       wdev->conn->params.bssid,
 			       wdev->conn->params.ssid,
 			       wdev->conn->params.ssid_len,
-			       IEEE80211_BSS_TYPE_ESS,
+			       wdev->conn_bss_type,
 			       IEEE80211_PRIVACY(wdev->conn->params.privacy));
 	if (!bss)
 		return NULL;
···
 		WARN_ON_ONCE(!wiphy_to_rdev(wdev->wiphy)->ops->connect);
 		bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
 				       wdev->ssid, wdev->ssid_len,
-				       IEEE80211_BSS_TYPE_ESS,
+				       wdev->conn_bss_type,
 				       IEEE80211_PRIVACY_ANY);
 		if (bss)
 			cfg80211_hold_bss(bss_from_pub(bss));
···
 
 	bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid,
 			       wdev->ssid_len,
-			       IEEE80211_BSS_TYPE_ESS, IEEE80211_PRIVACY_ANY);
+			       wdev->conn_bss_type, IEEE80211_PRIVACY_ANY);
 	if (WARN_ON(!bss))
 		return;
 
···
 	wdev->connect_keys = connkeys;
 	memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
 	wdev->ssid_len = connect->ssid_len;
+
+	wdev->conn_bss_type = connect->pbss ? IEEE80211_BSS_TYPE_PBSS :
+					      IEEE80211_BSS_TYPE_ESS;
 
 	if (!rdev->ops->connect)
 		err = cfg80211_sme_connect(wdev, connect, prev_bssid);

net/wireless/util.c

···
 }
 EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
 
-unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
+static unsigned int __ieee80211_get_mesh_hdrlen(u8 flags)
 {
-	int ae = meshhdr->flags & MESH_FLAGS_AE;
+	int ae = flags & MESH_FLAGS_AE;
 	/* 802.11-2012, 8.2.4.7.3 */
 	switch (ae) {
 	default:
···
 		return 18;
 	}
 }
+
+unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
+{
+	return __ieee80211_get_mesh_hdrlen(meshhdr->flags);
+}
 EXPORT_SYMBOL(ieee80211_get_mesh_hdrlen);
 
-int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
-			   enum nl80211_iftype iftype)
+static int __ieee80211_data_to_8023(struct sk_buff *skb, struct ethhdr *ehdr,
+				    const u8 *addr, enum nl80211_iftype iftype)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	u16 hdrlen, ethertype;
-	u8 *payload;
-	u8 dst[ETH_ALEN];
-	u8 src[ETH_ALEN] __aligned(2);
+	struct {
+		u8 hdr[ETH_ALEN] __aligned(2);
+		__be16 proto;
+	} payload;
+	struct ethhdr tmp;
+	u16 hdrlen;
+	u8 mesh_flags = 0;
 
 	if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
 		return -1;
 
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
+	if (skb->len < hdrlen + 8)
+		return -1;
 
 	/* convert IEEE 802.11 header + possible LLC headers into Ethernet
 	 * header
···
 	 *   1     0   BSSID SA    DA    n/a
 	 *   1     1   RA    TA    DA    SA
 	 */
-	memcpy(dst, ieee80211_get_DA(hdr), ETH_ALEN);
-	memcpy(src, ieee80211_get_SA(hdr), ETH_ALEN);
+	memcpy(tmp.h_dest, ieee80211_get_DA(hdr), ETH_ALEN);
+	memcpy(tmp.h_source, ieee80211_get_SA(hdr), ETH_ALEN);
+
+	if (iftype == NL80211_IFTYPE_MESH_POINT)
+		skb_copy_bits(skb, hdrlen, &mesh_flags, 1);
 
 	switch (hdr->frame_control &
 		cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
···
 			     iftype != NL80211_IFTYPE_STATION))
 			return -1;
 		if (iftype == NL80211_IFTYPE_MESH_POINT) {
-			struct ieee80211s_hdr *meshdr =
-				(struct ieee80211s_hdr *) (skb->data + hdrlen);
-			/* make sure meshdr->flags is on the linear part */
-			if (!pskb_may_pull(skb, hdrlen + 1))
+			if (mesh_flags & MESH_FLAGS_AE_A4)
 				return -1;
-			if (meshdr->flags & MESH_FLAGS_AE_A4)
-				return -1;
-			if (meshdr->flags & MESH_FLAGS_AE_A5_A6) {
+			if (mesh_flags & MESH_FLAGS_AE_A5_A6) {
 				skb_copy_bits(skb, hdrlen +
 					offsetof(struct ieee80211s_hdr, eaddr1),
-				       	dst, ETH_ALEN);
-				skb_copy_bits(skb, hdrlen +
-					offsetof(struct ieee80211s_hdr, eaddr2),
-				        src, ETH_ALEN);
+					tmp.h_dest, 2 * ETH_ALEN);
 			}
-			hdrlen += ieee80211_get_mesh_hdrlen(meshdr);
+			hdrlen += __ieee80211_get_mesh_hdrlen(mesh_flags);
 		}
 		break;
 	case cpu_to_le16(IEEE80211_FCTL_FROMDS):
 		if ((iftype != NL80211_IFTYPE_STATION &&
 		     iftype != NL80211_IFTYPE_P2P_CLIENT &&
 		     iftype != NL80211_IFTYPE_MESH_POINT) ||
-		    (is_multicast_ether_addr(dst) &&
-		     ether_addr_equal(src, addr)))
+		    (is_multicast_ether_addr(tmp.h_dest) &&
+		     ether_addr_equal(tmp.h_source, addr)))
 			return -1;
 		if (iftype == NL80211_IFTYPE_MESH_POINT) {
-			struct ieee80211s_hdr *meshdr =
-				(struct ieee80211s_hdr *) (skb->data + hdrlen);
-			/* make sure meshdr->flags is on the linear part */
-			if (!pskb_may_pull(skb, hdrlen + 1))
+			if (mesh_flags & MESH_FLAGS_AE_A5_A6)
 				return -1;
-			if (meshdr->flags & MESH_FLAGS_AE_A5_A6)
-				return -1;
-			if (meshdr->flags & MESH_FLAGS_AE_A4)
+			if (mesh_flags & MESH_FLAGS_AE_A4)
 				skb_copy_bits(skb, hdrlen +
 					offsetof(struct ieee80211s_hdr, eaddr1),
-					src, ETH_ALEN);
-			hdrlen += ieee80211_get_mesh_hdrlen(meshdr);
+					tmp.h_source, ETH_ALEN);
+			hdrlen += __ieee80211_get_mesh_hdrlen(mesh_flags);
 		}
 		break;
 	case cpu_to_le16(0):
···
 		break;
 	}
 
-	if (!pskb_may_pull(skb, hdrlen + 8))
-		return -1;
+	skb_copy_bits(skb, hdrlen, &payload, sizeof(payload));
+	tmp.h_proto = payload.proto;
 
-	payload = skb->data + hdrlen;
-	ethertype = (payload[6] << 8) | payload[7];
-
-	if (likely((ether_addr_equal(payload, rfc1042_header) &&
-		    ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
-		   ether_addr_equal(payload, bridge_tunnel_header))) {
+	if (likely((ether_addr_equal(payload.hdr, rfc1042_header) &&
+		    tmp.h_proto != htons(ETH_P_AARP) &&
+		    tmp.h_proto != htons(ETH_P_IPX)) ||
+		   ether_addr_equal(payload.hdr, bridge_tunnel_header)))
 		/* remove RFC1042 or Bridge-Tunnel encapsulation and
 		 * replace EtherType */
-		skb_pull(skb, hdrlen + 6);
-		memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN);
-		memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN);
-	} else {
-		struct ethhdr *ehdr;
-		__be16 len;
+		hdrlen += ETH_ALEN + 2;
+	else
+		tmp.h_proto = htons(skb->len);
 
-		skb_pull(skb, hdrlen);
-		len = htons(skb->len);
+	pskb_pull(skb, hdrlen);
+
+	if (!ehdr)
 		ehdr = (struct ethhdr *) skb_push(skb, sizeof(struct ethhdr));
-		memcpy(ehdr->h_dest, dst, ETH_ALEN);
-		memcpy(ehdr->h_source, src, ETH_ALEN);
-		ehdr->h_proto = len;
-	}
+	memcpy(ehdr, &tmp, sizeof(tmp));
+
 	return 0;
+}
+
+int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
+			   enum nl80211_iftype iftype)
+{
+	return __ieee80211_data_to_8023(skb, NULL, addr, iftype);
 }
 EXPORT_SYMBOL(ieee80211_data_to_8023);
 
···
 }
 EXPORT_SYMBOL(ieee80211_data_from_8023);
 
+static void
+__frame_add_frag(struct sk_buff *skb, struct page *page,
+		 void *ptr, int len, int size)
+{
+	struct skb_shared_info *sh = skb_shinfo(skb);
+	int page_offset;
+
+	atomic_inc(&page->_count);
+	page_offset = ptr - page_address(page);
+	skb_add_rx_frag(skb, sh->nr_frags, page, page_offset, len, size);
+}
+
+static void
+__ieee80211_amsdu_copy_frag(struct sk_buff *skb, struct sk_buff *frame,
+			    int offset, int len)
+{
+	struct skb_shared_info *sh = skb_shinfo(skb);
+	const skb_frag_t *frag = &sh->frags[-1];
+	struct page *frag_page;
+	void *frag_ptr;
+	int frag_len, frag_size;
+	int head_size = skb->len - skb->data_len;
+	int cur_len;
+
+	frag_page = virt_to_head_page(skb->head);
+	frag_ptr = skb->data;
+	frag_size = head_size;
+
+	while (offset >= frag_size) {
+		offset -= frag_size;
+		frag++;
+		frag_page = skb_frag_page(frag);
+		frag_ptr = skb_frag_address(frag);
+		frag_size = skb_frag_size(frag);
+	}
+
+	frag_ptr += offset;
+	frag_len = frag_size - offset;
+
+	cur_len = min(len, frag_len);
+
+	__frame_add_frag(frame, frag_page, frag_ptr, cur_len, frag_size);
+	len -= cur_len;
+
+	while (len > 0) {
+		frag++;
+		frag_len = skb_frag_size(frag);
+		cur_len = min(len, frag_len);
+		__frame_add_frag(frame, skb_frag_page(frag),
+				 skb_frag_address(frag), cur_len, frag_len);
+		len -= cur_len;
+	}
+}
+
+static struct sk_buff *
+__ieee80211_amsdu_copy(struct sk_buff *skb, unsigned int hlen,
+		       int offset, int len, bool reuse_frag)
+{
+	struct sk_buff *frame;
+	int cur_len = len;
+
+	if (skb->len - offset < len)
+		return NULL;
+
+	/*
+	 * When reusing framents, copy some data to the head to simplify
+	 * ethernet header handling and speed up protocol header processing
+	 * in the stack later.
+	 */
+	if (reuse_frag)
+		cur_len = min_t(int, len, 32);
+
+	/*
+	 * Allocate and reserve two bytes more for payload
+	 * alignment since sizeof(struct ethhdr) is 14.
+	 */
+	frame = dev_alloc_skb(hlen + sizeof(struct ethhdr) + 2 + cur_len);
+
+	skb_reserve(frame, hlen + sizeof(struct ethhdr) + 2);
+	skb_copy_bits(skb, offset, skb_put(frame, cur_len), cur_len);
+
+	len -= cur_len;
+	if (!len)
+		return frame;
+
+	offset += cur_len;
+	__ieee80211_amsdu_copy_frag(skb, frame, offset, len);
+
+	return frame;
+}
 
 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
 			      const u8 *addr, enum nl80211_iftype iftype,
 			      const unsigned int extra_headroom,
 			      bool has_80211_header)
 {
+	unsigned int hlen = ALIGN(extra_headroom, 4);
 	struct sk_buff *frame = NULL;
 	u16 ethertype;
 	u8 *payload;
-	const struct ethhdr *eth;
-	int remaining, err;
-	u8 dst[ETH_ALEN], src[ETH_ALEN];
+	int offset = 0, remaining, err;
+	struct ethhdr eth;
+	bool reuse_frag = skb->head_frag && !skb_has_frag_list(skb);
+	bool reuse_skb = false;
+	bool last = false;
 
 	if (has_80211_header) {
-		err = ieee80211_data_to_8023(skb, addr, iftype);
+		err = __ieee80211_data_to_8023(skb, &eth, addr, iftype);
 		if (err)
 			goto out;
-
-		/* skip the wrapping header */
-		eth = (struct ethhdr *) skb_pull(skb, sizeof(struct ethhdr));
-		if (!eth)
-			goto out;
-	} else {
-		eth = (struct ethhdr *) skb->data;
 	}
 
-	while (skb != frame) {
+	while (!last) {
+		unsigned int subframe_len;
+		int len;
 		u8 padding;
-		__be16 len = eth->h_proto;
-		unsigned int subframe_len = sizeof(struct ethhdr) + ntohs(len);
 
-		remaining = skb->len;
-		memcpy(dst, eth->h_dest, ETH_ALEN);
-		memcpy(src, eth->h_source, ETH_ALEN);
-
+		skb_copy_bits(skb, offset, &eth, sizeof(eth));
+		len = ntohs(eth.h_proto);
+		subframe_len = sizeof(struct ethhdr) + len;
 		padding = (4 - subframe_len) & 0x3;
+
 		/* the last MSDU has no padding */
+		remaining = skb->len - offset;
 		if (subframe_len > remaining)
 			goto purge;
 
-		skb_pull(skb, sizeof(struct ethhdr));
+		offset += sizeof(struct ethhdr);
 		/* reuse skb for the last subframe */
-		if (remaining <= subframe_len + padding)
+		last = remaining <= subframe_len + padding;
+		if (!skb_is_nonlinear(skb) && !reuse_frag && last) {
+			skb_pull(skb, offset);
 			frame = skb;
-		else {
-			unsigned int hlen = ALIGN(extra_headroom, 4);
-			/*
-			 * Allocate and reserve two bytes more for payload
-			 * alignment since sizeof(struct ethhdr) is 14.
-			 */
-			frame = dev_alloc_skb(hlen + subframe_len + 2);
+			reuse_skb = true;
+		} else {
+			frame = __ieee80211_amsdu_copy(skb, hlen, offset, len,
+						       reuse_frag);
 			if (!frame)
 				goto purge;
 
-			skb_reserve(frame, hlen + sizeof(struct ethhdr) + 2);
-			memcpy(skb_put(frame, ntohs(len)), skb->data,
-				ntohs(len));
-
-			eth = (struct ethhdr *)skb_pull(skb, ntohs(len) +
-							padding);
-			if (!eth) {
-				dev_kfree_skb(frame);
-				goto purge;
-			}
+			offset += len + padding;
 		}
 
 		skb_reset_network_header(frame);
···
 
 		payload = frame->data;
 		ethertype = (payload[6] << 8) | payload[7];
-
 		if (likely((ether_addr_equal(payload, rfc1042_header) &&
 			    ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
 			   ether_addr_equal(payload, bridge_tunnel_header))) {
-			/* remove RFC1042 or Bridge-Tunnel
-			 * encapsulation and replace EtherType */
-			skb_pull(frame, 6);
-			memcpy(skb_push(frame, ETH_ALEN), src, ETH_ALEN);
-			memcpy(skb_push(frame, ETH_ALEN), dst, ETH_ALEN);
-		} else {
-			memcpy(skb_push(frame, sizeof(__be16)), &len,
-				sizeof(__be16));
-			memcpy(skb_push(frame, ETH_ALEN), src, ETH_ALEN);
-			memcpy(skb_push(frame, ETH_ALEN), dst, ETH_ALEN);
+			eth.h_proto = htons(ethertype);
+			skb_pull(frame, ETH_ALEN + 2);
 		}
+
+		memcpy(skb_push(frame, sizeof(eth)), &eth, sizeof(eth));
 		__skb_queue_tail(list, frame);
 	}
+
+	if (!reuse_skb)
+		dev_kfree_skb(skb);
 
 	return;