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
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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 <davem@davemloft.net>

Documentation/ABI/obsolete/sysfs-class-rfkill

@@ -1,29 +0,0 @@
-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:	linux-wireless@vger.kernel.org
-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:	linux-wireless@vger.kernel.org
-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

@@ -0,0 +1,13 @@
+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:	linux-wireless@vger.kernel.org
+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

@@ -2,9 +2,8 @@ rfkill - radio frequency (RF) connector kill switch support
 
 For details to this subsystem look at Documentation/rfkill.txt.
 
-For the deprecated /sys/class/rfkill/*/state and
+For the deprecated /sys/class/rfkill/*/claim knobs of this interface look in
-/sys/class/rfkill/*/claim knobs of this interface look in
+Documentation/ABI/removed/sysfs-class-rfkill.
-Documentation/ABI/obsolete/sysfs-class-rfkill.
 
 What: 		/sys/class/rfkill
 Date:		09-Jul-2007
@@ -42,6 +41,28 @@ Values: 	A numeric value.
 		1: true
 
 
+What:		/sys/class/rfkill/rfkill[0-9]+/state
+Date:		09-Jul-2007
+KernelVersion	v2.6.22
+Contact:	linux-wireless@vger.kernel.org
+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
 Date:		12-March-2010
 KernelVersion	v2.6.34

Documentation/networking/mac80211-injection.txt

@@ -28,6 +28,23 @@ radiotap headers and used to control injection:
    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

@@ -83,6 +83,8 @@ rfkill drivers that control devices that can be hard-blocked unless they also
 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

@@ -17,23 +17,25 @@
  *
  */
 
+#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 = {
+static struct property_entry __initdata wifi_rfkill_prop[] = {
-	.name	= "wifi_rfkill",
+	PROPERTY_ENTRY_STRING("name", "wifi_rfkill"),
-	.type	= RFKILL_TYPE_WLAN,
+	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 = {
@@ -47,6 +49,7 @@ 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

@@ -6366,12 +6366,13 @@ static u64 ath10k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 
 static int ath10k_ampdu_action(struct ieee80211_hw *hw,
 			       struct ieee80211_vif *vif,
-			       enum ieee80211_ampdu_mlme_action action,
+			       struct ieee80211_ampdu_params *params)
-			       struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			       u8 buf_size, bool amsdu)
 {
 	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

@@ -1657,13 +1657,14 @@ static void ath9k_htc_reset_tsf(struct ieee80211_hw *hw,
 
 static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw,
 				  struct ieee80211_vif *vif,
-				  enum ieee80211_ampdu_mlme_action action,
+				  struct ieee80211_ampdu_params *params)
-				  struct ieee80211_sta *sta,
-				  u16 tid, u16 *ssn, u8 buf_size, bool amsdu)
 {
 	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

@@ -1864,14 +1864,16 @@ static void ath9k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 
 static int ath9k_ampdu_action(struct ieee80211_hw *hw,
 			      struct ieee80211_vif *vif,
-			      enum ieee80211_ampdu_mlme_action action,
+			      struct ieee80211_ampdu_params *params)
-			      struct ieee80211_sta *sta,
-			      u16 tid, u16 *ssn, u8 buf_size, bool amsdu)
 {
 	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

@@ -1413,10 +1413,12 @@ static void carl9170_ampdu_work(struct work_struct *work)
 
 static int carl9170_op_ampdu_action(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
-				    enum ieee80211_ampdu_mlme_action action,
+				    struct ieee80211_ampdu_params *params)
-				    struct ieee80211_sta *sta,
-				    u16 tid, u16 *ssn, u8 buf_size, bool amsdu)
 {
+	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

@@ -857,12 +857,14 @@ static int wcn36xx_resume(struct ieee80211_hw *hw)
 
 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
 		    struct ieee80211_vif *vif,
-		    enum ieee80211_ampdu_mlme_action action,
+		    struct ieee80211_ampdu_params *params)
-		    struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-		    u8 buf_size, bool amsdu)
 {
 	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

@@ -422,6 +422,11 @@ static int wil_cfg80211_connect(struct wiphy *wiphy,
 	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);
@@ -870,6 +875,11 @@ static int wil_cfg80211_start_ap(struct wiphy *wiphy,
 		return -EINVAL;
 	}
 
+	if (info->pbss) {
+		wil_err(wil, "AP: PBSS not yet supported\n");
+		return -EOPNOTSUPP;
+	}
+
 	switch (info->hidden_ssid) {
 	case NL80211_HIDDEN_SSID_NOT_IN_USE:
 		hidden_ssid = WMI_HIDDEN_SSID_DISABLED;

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

@@ -818,13 +818,15 @@ brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 static int
 brcms_ops_ampdu_action(struct ieee80211_hw *hw,
 		    struct ieee80211_vif *vif,
-		    enum ieee80211_ampdu_mlme_action action,
+		    struct ieee80211_ampdu_params *params)
-		    struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-		    u8 buf_size, bool amsdu)
 {
 	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

@@ -5982,12 +5982,14 @@ il4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 
 int
 il4965_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
+			struct ieee80211_ampdu_params *params)
-			struct ieee80211_sta *sta, u16 tid, u16 * ssn,
-			u8 buf_size, bool amsdu)
 {
 	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

@@ -182,9 +182,7 @@ void il4965_mac_update_tkip_key(struct ieee80211_hw *hw,
 				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_ampdu_params *params);
-			    struct ieee80211_sta *sta, u16 tid, u16 * ssn,
-			    u8 buf_size, bool amsdu);
 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

@@ -943,14 +943,16 @@ static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
 	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);
+			pn64 = atomic64_read(&key->tx_pn);
-			tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
+			tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
-			tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
+			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);
@@ -996,19 +998,13 @@ static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
 		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);
+			pn64 = atomic64_read(&key->tx_pn);
-			aes_tx_sc->pn = cpu_to_le64(
+			aes_tx_sc->pn = cpu_to_le64(pn64);
-					(u64)pn[5] |
-					((u64)pn[4] << 8) |
-					((u64)pn[3] << 16) |
-					((u64)pn[2] << 24) |
-					((u64)pn[1] << 32) |
-					((u64)pn[0] << 40));
 		} else
 			aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
 

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

@@ -732,12 +732,15 @@ static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
 
 static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
 				   struct ieee80211_vif *vif,
-				   enum ieee80211_ampdu_mlme_action action,
+				   struct ieee80211_ampdu_params *params)
-				   struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-				   u8 buf_size, bool amsdu)
 {
 	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

@@ -251,16 +251,19 @@ static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
 		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);
+			pn64 = atomic64_read(&key->tx_pn);
-			tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
+			tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
-			tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
+			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,
@@ -1614,7 +1617,9 @@ static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
 		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

@@ -837,13 +837,16 @@ iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
-				    enum ieee80211_ampdu_mlme_action action,
+				    struct ieee80211_ampdu_params *params)
-				    struct ieee80211_sta *sta, u16 tid,
-				    u16 *ssn, u8 buf_size, bool amsdu)
 {
 	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);
@@ -2582,7 +2585,7 @@ static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
 	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

@@ -299,6 +299,8 @@ static void iwl_mvm_set_tx_cmd_crypto(struct iwl_mvm *mvm,
 
 	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

@@ -1334,10 +1334,8 @@ static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
 	data->tx_bytes += skb->len;
 	ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
 
-	if (ack && skb->len >= 16) {
+	if (ack && skb->len >= 16)
-		struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 		mac80211_hwsim_monitor_ack(channel, hdr->addr2);
-	}
 
 	ieee80211_tx_info_clear_status(txi);
 
@@ -1846,10 +1844,12 @@ static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
 
 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif,
-				       enum ieee80211_ampdu_mlme_action action,
+				       struct ieee80211_ampdu_params *params)
-				       struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-				       u8 buf_size, bool amsdu)
 {
+	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

@@ -5421,11 +5421,13 @@ static int mwl8k_get_survey(struct ieee80211_hw *hw, int idx,
 
 static int
 mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		   enum ieee80211_ampdu_mlme_action action,
+		   struct ieee80211_ampdu_params *params)
-		   struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-		   u8 buf_size, bool amsdu)
 {
-
+	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

@@ -334,11 +334,13 @@ static int mt7601u_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
 
 static int
 mt76_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		  enum ieee80211_ampdu_mlme_action action,
+		  struct ieee80211_ampdu_params *params)
-		  struct ieee80211_sta *sta, u16 tid, u16 *ssn, u8 buf_size,
-		  bool amsdu)
 {
 	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

@@ -7936,10 +7936,11 @@ u64 rt2800_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 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_ampdu_params *params)
-			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			u8 buf_size, bool amsdu)
 {
+	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

@@ -218,9 +218,7 @@ int rt2800_conf_tx(struct ieee80211_hw *hw,
 		   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_ampdu_params *params);
-			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			u8 buf_size, bool amsdu);
 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

@@ -5375,13 +5375,13 @@ static int rtl8xxxu_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 
 static int
 rtl8xxxu_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		      enum ieee80211_ampdu_mlme_action action,
+		      struct ieee80211_ampdu_params *params)
-		      struct ieee80211_sta *sta, u16 tid, u16 *ssn, u8 buf_size,
-		      bool amsdu)
 {
 	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

@@ -1371,11 +1371,13 @@ static void rtl_op_sta_notify(struct ieee80211_hw *hw,
 
 static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
 			       struct ieee80211_vif *vif,
-			       enum ieee80211_ampdu_mlme_action action,
+			       struct ieee80211_ampdu_params *params)
-			       struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			       u8 buf_size, bool amsdu)
 {
 	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

@@ -659,29 +659,24 @@ static int rsi_mac80211_set_key(struct ieee80211_hw *hw,
  *				 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.
+ * @params: Pointer to A-MPDU action parameters
- * @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
  *
  * 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_ampdu_params *params)
-				     struct ieee80211_sta *sta,
-				     unsigned short tid,
-				     unsigned short *ssn,
-				     unsigned char buf_size,
-				     bool amsdu)
 {
 	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

@@ -2129,9 +2129,7 @@ void cw1200_mcast_timeout(unsigned long arg)
 
 int cw1200_ampdu_action(struct ieee80211_hw *hw,
 			struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
+			struct ieee80211_ampdu_params *params)
-			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			u8 buf_size, bool amsdu)
 {
 	/* Aggregation is implemented fully in firmware,
 	 * including block ack negotiation. Do not allow

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

@@ -109,9 +109,7 @@ void cw1200_bss_info_changed(struct ieee80211_hw *dev,
 			     u32 changed);
 int cw1200_ampdu_action(struct ieee80211_hw *hw,
 			struct ieee80211_vif *vif,
-			enum ieee80211_ampdu_mlme_action action,
+			struct ieee80211_ampdu_params *params);
-			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			u8 buf_size, bool amsdu);
 
 void cw1200_suspend_resume(struct cw1200_common *priv,
 			  struct wsm_suspend_resume *arg);

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

@@ -5187,14 +5187,16 @@ out:
 
 static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
 				  struct ieee80211_vif *vif,
-				  enum ieee80211_ampdu_mlme_action action,
+				  struct ieee80211_ampdu_params *params)
-				  struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-				  u8 buf_size, bool amsdu)
 {
 	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

@@ -1210,7 +1210,7 @@ static void vnt_fill_txkey(struct ieee80211_hdr *hdr, u8 *key_buffer,
 			   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 */
@@ -1243,9 +1243,13 @@ static void vnt_fill_txkey(struct ieee80211_hdr *hdr, u8 *key_buffer,
 		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);
+		pn64 = atomic64_read(&tx_key->tx_pn);
-
+		mic_hdr->ccmp_pn[5] = pn64;
-		memcpy(mic_hdr->ccmp_pn, seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
+		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

@@ -716,7 +716,7 @@ static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context,
 	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 */
@@ -749,9 +749,13 @@ static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context,
 		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);
+		pn64 = atomic64_read(&tx_key->tx_pn);
-
+		mic_hdr->ccmp_pn[5] = pn64;
-		memcpy(mic_hdr->ccmp_pn, seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
+		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

@@ -163,6 +163,14 @@ static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 /* 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
@@ -843,6 +851,8 @@ enum ieee80211_vht_opmode_bits {
 };
 
 #define WLAN_SA_QUERY_TR_ID_LEN 2
+#define WLAN_MEMBERSHIP_LEN 8
+#define WLAN_USER_POSITION_LEN 16
 
 /**
  * struct ieee80211_tpc_report_ie
@@ -989,6 +999,11 @@ struct ieee80211_mgmt {
 					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;
@@ -1498,6 +1513,7 @@ struct ieee80211_vht_operation {
 #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
@@ -2079,6 +2095,16 @@ enum ieee80211_tdls_actioncode {
 #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

@@ -1,37 +0,0 @@
-/*
- * 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

@@ -104,7 +104,8 @@ int __must_check rfkill_register(struct rfkill *rfkill);
  *
  * 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);
 
@@ -212,6 +213,15 @@ void rfkill_set_states(struct rfkill *rfkill, bool sw, bool hw);
  * @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,
@@ -268,6 +278,12 @@ static inline bool rfkill_blocked(struct rfkill *rfkill)
 {
 	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

@@ -712,6 +712,8 @@ struct cfg80211_acl_data {
  * @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;
@@ -730,6 +732,7 @@ struct cfg80211_ap_settings {
 	u8 p2p_ctwindow;
 	bool p2p_opp_ps;
 	const struct cfg80211_acl_data *acl;
+	bool pbss;
 };
 
 /**
@@ -1888,6 +1891,8 @@ struct cfg80211_ibss_params {
  * @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;
@@ -1910,6 +1915,7 @@ struct cfg80211_connect_params {
 	struct ieee80211_ht_cap ht_capa_mask;
 	struct ieee80211_vht_cap vht_capa;
 	struct ieee80211_vht_cap vht_capa_mask;
+	bool pbss;
 };
 
 /**
@@ -3489,6 +3495,7 @@ struct cfg80211_cached_keys;
  *	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
@@ -3519,6 +3526,7 @@ struct wireless_dev {
 	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

@@ -5,7 +5,7 @@
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007-2010	Johannes Berg <johannes@sipsolutions.net>
  * 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
@@ -298,6 +298,7 @@ struct ieee80211_vif_chanctx_switch {
  *	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,
@@ -323,6 +324,7 @@ enum ieee80211_bss_change {
 	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 */
 };
@@ -435,6 +437,19 @@ struct ieee80211_event {
 	} u;
 };
 
+/**
+ * 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
  *
@@ -477,6 +492,7 @@ struct ieee80211_event {
  * @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
@@ -535,6 +551,7 @@ struct ieee80211_bss_conf {
 	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;
@@ -691,12 +708,14 @@ enum mac80211_tx_info_flags {
  *	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),
 };
 
 /*
@@ -993,6 +1012,8 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
  * @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
@@ -1014,6 +1035,14 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
  * @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
@@ -1033,6 +1062,7 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
 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),
@@ -1046,7 +1076,7 @@ enum mac80211_rx_flags {
 	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),
@@ -1054,6 +1084,8 @@ enum mac80211_rx_flags {
 	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),
@@ -1072,6 +1104,7 @@ enum mac80211_rx_flags {
  * @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),
@@ -1091,6 +1124,8 @@ enum mac80211_rx_vht_flags {
  *	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_*
@@ -1347,6 +1382,7 @@ enum ieee80211_vif_flags {
  * @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
@@ -1373,6 +1409,7 @@ struct ieee80211_vif {
 	u8 addr[ETH_ALEN];
 	bool p2p;
 	bool csa_active;
+	bool mu_mimo_owner;
 
 	u8 cab_queue;
 	u8 hw_queue[IEEE80211_NUM_ACS];
@@ -1486,9 +1523,8 @@ enum ieee80211_key_flags {
  *	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
+ * @tx_pn: PN used for TX keys, may be used by the driver as well if it
- *	as well if it needs to do software PN assignment by itself
+ *	needs to do software PN assignment by itself (e.g. due to TSO)
- *	(e.g. due to TSO)
  * @flags: key flags, see &enum ieee80211_key_flags.
  * @keyidx: the key index (0-3)
  * @keylen: key material length
@@ -1514,6 +1550,9 @@ struct ieee80211_key_conf {
 
 #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
  *
@@ -1684,6 +1723,18 @@ struct ieee80211_sta_rates {
  * @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 {
@@ -1702,6 +1753,8 @@ 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];
 
@@ -1910,6 +1963,11 @@ struct ieee80211_txq {
  *	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 {
@@ -1946,6 +2004,7 @@ 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
@@ -2167,7 +2226,7 @@ static inline void SET_IEEE80211_DEV(struct ieee80211_hw *hw, struct device *dev
  * @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);
 }
@@ -2683,6 +2742,33 @@ enum ieee80211_ampdu_mlme_action {
 	IEEE80211_AMPDU_TX_OPERATIONAL,
 };
 
+/**
+ * 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
@@ -3027,13 +3113,9 @@ enum ieee80211_reconfig_type {
  * @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)
+ *	ieee80211_ampdu_mlme_action.
- * 	is the first frame we expect to perform the action on. Notice
+ *	When the action is set to %IEEE80211_AMPDU_TX_OPERATIONAL the driver
- * 	that TX/RX_STOP can pass NULL for this parameter.
+ *	may neither send aggregates containing more subframes than @buf_size
- *	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
  *	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:
@@ -3044,9 +3126,6 @@ enum ieee80211_reconfig_type {
  *	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.
@@ -3388,9 +3467,7 @@ struct ieee80211_ops {
 	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_ampdu_params *params);
-			    struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			    u8 buf_size, bool amsdu);
 	int (*get_survey)(struct ieee80211_hw *hw, int idx,
 		struct survey_info *survey);
 	void (*rfkill_poll)(struct ieee80211_hw *hw);
@@ -4374,21 +4451,19 @@ void ieee80211_get_tkip_p2k(struct ieee80211_key_conf *keyconf,
 			    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
+ * Returns: pointer to the octet following IVs (i.e. beginning of
- * for the given key. It must not be called if IV generation is
+ * the packet payload)
- * offloaded to the device.
  *
- * Note that this function may only be called when no TX processing
+ * This function writes the tkip IV value to pos (which should
- * can be done concurrently, for example when queues are stopped
+ * point to the crypto header)
- * and the stop has been synchronized.
  */
-void ieee80211_get_key_tx_seq(struct ieee80211_key_conf *keyconf,
+u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key_conf *keyconf, u64 pn);
-			      struct ieee80211_key_seq *seq);
 
 /**
  * ieee80211_get_key_rx_seq - get key RX sequence counter
@@ -4409,23 +4484,6 @@ void ieee80211_get_key_tx_seq(struct ieee80211_key_conf *keyconf,
 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
  *
@@ -5120,6 +5178,24 @@ void ieee80211_remain_on_channel_expired(struct ieee80211_hw *hw);
 void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap,
 				  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
  *
@@ -5371,6 +5447,21 @@ ieee80211_vif_type_p2p(struct ieee80211_vif *vif)
 	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);
@@ -5523,4 +5614,19 @@ void ieee80211_unreserve_tid(struct ieee80211_sta *sta, u8 tid);
  */
 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

@@ -1727,6 +1727,8 @@ enum nl80211_commands {
  *	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.
@@ -1789,6 +1791,10 @@ enum nl80211_commands {
  *	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
@@ -2164,6 +2170,8 @@ enum nl80211_attrs {
 	NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
 	NL80211_ATTR_SCHED_SCAN_PLANS,
 
+	NL80211_ATTR_PBSS,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
@@ -4396,12 +4404,18 @@ enum nl80211_feature_flags {
 /**
  * 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

@@ -59,6 +59,8 @@ enum rfkill_type {
  * @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

@@ -7,6 +7,7 @@
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * 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
@@ -61,16 +62,25 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 {
 	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",
@@ -78,8 +88,7 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 	       initiator == WLAN_BACK_RECIPIENT ? "recipient" : "inititator",
 	       (int)reason);
 
-	if (drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_STOP,
+	if (drv_ampdu_action(local, sta->sdata, &params))
-			     &sta->sta, tid, NULL, 0, false))
 		sdata_info(sta->sdata,
 			   "HW problem - can not stop rx aggregation for %pM tid %d\n",
 			   sta->sta.addr, tid);
@@ -89,6 +98,13 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 		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);
 
 	/* make sure ieee80211_sta_reorder_release() doesn't re-arm the timer */
@@ -237,6 +253,15 @@ void __ieee80211_start_rx_ba_session(struct sta_info *sta,
 {
 	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;
 
@@ -275,11 +300,12 @@ void __ieee80211_start_rx_ba_session(struct sta_info *sta,
 	/* 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);
@@ -290,6 +316,16 @@ void __ieee80211_start_rx_ba_session(struct sta_info *sta,
 						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 */
 	tid_agg_rx = kmalloc(sizeof(struct tid_ampdu_rx), GFP_KERNEL);
 	if (!tid_agg_rx)
@@ -322,8 +358,7 @@ void __ieee80211_start_rx_ba_session(struct sta_info *sta,
 	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,
+	ret = drv_ampdu_action(local, sta->sdata, &params);
-			       &sta->sta, tid, &start_seq_num, 0, false);
 	ht_dbg(sta->sdata, "Rx A-MPDU request on %pM tid %d result %d\n",
 	       sta->sta.addr, tid, ret);
 	if (ret) {
@@ -341,6 +376,7 @@ void __ieee80211_start_rx_ba_session(struct sta_info *sta,
 	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 */
@@ -352,6 +388,8 @@ void __ieee80211_start_rx_ba_session(struct sta_info *sta,
 	}
 
 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

@@ -7,6 +7,7 @@
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * 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
@@ -295,7 +296,14 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 {
 	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);
@@ -304,10 +312,10 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 	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);
@@ -330,9 +338,8 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 		spin_unlock_bh(&sta->lock);
 		if (reason != AGG_STOP_DESTROY_STA)
 			return -EALREADY;
-		ret = drv_ampdu_action(local, sta->sdata,
+		params.action = IEEE80211_AMPDU_TX_STOP_FLUSH_CONT;
-				       IEEE80211_AMPDU_TX_STOP_FLUSH_CONT,
+		ret = drv_ampdu_action(local, sta->sdata, &params);
-				       &sta->sta, tid, NULL, 0, false);
 		WARN_ON_ONCE(ret);
 		return 0;
 	}
@@ -381,8 +388,7 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 					WLAN_BACK_INITIATOR;
 	tid_tx->tx_stop = reason == AGG_STOP_LOCAL_REQUEST;
 
-	ret = drv_ampdu_action(local, sta->sdata, action,
+	ret = drv_ampdu_action(local, sta->sdata, &params);
-			       &sta->sta, tid, NULL, 0, false);
 
 	/* HW shall not deny going back to legacy */
 	if (WARN_ON(ret)) {
@@ -445,7 +451,14 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 	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);
@@ -467,10 +480,8 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 	 */
 	synchronize_net();
 
-	start_seq_num = sta->tid_seq[tid] >> 4;
+	params.ssn = sta->tid_seq[tid] >> 4;
-
+	ret = drv_ampdu_action(local, sdata, &params);
-	ret = drv_ampdu_action(local, sdata, IEEE80211_AMPDU_TX_START,
-			       &sta->sta, tid, &start_seq_num, 0, false);
 	if (ret) {
 		ht_dbg(sdata,
 		       "BA request denied - HW unavailable for %pM tid %d\n",
@@ -499,7 +510,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 
 	/* 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);
 }
@@ -684,18 +695,24 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local,
 					 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,
+	drv_ampdu_action(local, sta->sdata, &params);
-			 IEEE80211_AMPDU_TX_OPERATIONAL,
-			 &sta->sta, tid, NULL, tid_tx->buf_size,
-			 tid_tx->amsdu);
 
 	/*
 	 * synchronize with TX path, while splicing the TX path

net/mac80211/cfg.c

@@ -339,8 +339,9 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 
 	switch (key->conf.cipher) {
 	case WLAN_CIPHER_SUITE_TKIP:
-		iv32 = key->u.tkip.tx.iv32;
+		pn64 = atomic64_read(&key->conf.tx_pn);
-		iv16 = key->u.tkip.tx.iv16;
+		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)) {
@@ -1131,6 +1132,34 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 		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
@@ -1160,6 +1189,7 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 		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

@@ -231,7 +231,7 @@ ieee80211_get_max_required_bw(struct ieee80211_sub_if_data *sdata)
 		    !(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

@@ -126,6 +126,7 @@ static const char *hw_flag_names[] = {
 	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

@@ -132,9 +132,10 @@ static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
 		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,
+				TKIP_PN_TO_IV32(pn),
-				key->u.tkip.tx.iv16);
+				TKIP_PN_TO_IV16(pn));
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
 	case WLAN_CIPHER_SUITE_CCMP_256:

net/mac80211/driver-ops.c

@@ -284,9 +284,7 @@ int drv_switch_vif_chanctx(struct ieee80211_local *local,
 
 int drv_ampdu_action(struct ieee80211_local *local,
 		     struct ieee80211_sub_if_data *sdata,
-		     enum ieee80211_ampdu_mlme_action action,
+		     struct ieee80211_ampdu_params *params)
-		     struct ieee80211_sta *sta, u16 tid,
-		     u16 *ssn, u8 buf_size, bool amsdu)
 {
 	int ret = -EOPNOTSUPP;
 
@@ -296,12 +294,10 @@ int drv_ampdu_action(struct ieee80211_local *local,
 	if (!check_sdata_in_driver(sdata))
 		return -EIO;
 
-	trace_drv_ampdu_action(local, sdata, action, sta, tid,
+	trace_drv_ampdu_action(local, sdata, params);
-			       ssn, buf_size, amsdu);
 
 	if (local->ops->ampdu_action)
-		ret = local->ops->ampdu_action(&local->hw, &sdata->vif, action,
+		ret = local->ops->ampdu_action(&local->hw, &sdata->vif, params);
-					       sta, tid, ssn, buf_size, amsdu);
 
 	trace_drv_return_int(local, ret);
 

net/mac80211/driver-ops.h

@@ -585,9 +585,7 @@ static inline int drv_tx_last_beacon(struct ieee80211_local *local)
 
 int drv_ampdu_action(struct ieee80211_local *local,
 		     struct ieee80211_sub_if_data *sdata,
-		     enum ieee80211_ampdu_mlme_action action,
+		     struct ieee80211_ampdu_params *params);
-		     struct ieee80211_sta *sta, u16 tid,
-		     u16 *ssn, u8 buf_size, bool amsdu);
 
 static inline int drv_get_survey(struct ieee80211_local *local, int idx,
 				struct survey_info *survey)

net/mac80211/ht.c

@@ -230,6 +230,11 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
 	/* 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

@@ -7,6 +7,7 @@
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * Copyright 2009, Johannes Berg <johannes@sipsolutions.net>
  * 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
@@ -1050,9 +1051,8 @@ static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata,
 		struct cfg80211_chan_def chandef;
 		enum ieee80211_sta_rx_bandwidth bw = sta->sta.bandwidth;
 
-		ieee80211_ht_oper_to_chandef(channel,
+		cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
-					     elems->ht_operation,
+		ieee80211_chandef_ht_oper(elems->ht_operation, &chandef);
-					     &chandef);
 
 		memcpy(&htcap_ie, elems->ht_cap_elem, sizeof(htcap_ie));
 		rates_updated |= ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
@@ -1066,9 +1066,8 @@ static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata,
 			struct ieee80211_vht_cap cap_ie;
 			struct ieee80211_sta_vht_cap cap = sta->sta.vht_cap;
 
-			ieee80211_vht_oper_to_chandef(channel,
+			ieee80211_chandef_vht_oper(elems->vht_operation,
-						      elems->vht_operation,
+						   &chandef);
-						      &chandef);
 			memcpy(&cap_ie, elems->vht_cap_elem, sizeof(cap_ie));
 			ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
 							    &cap_ie, sta);
@@ -1485,14 +1484,21 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 
 		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,
+		if (ifibss->fixed_channel) {
-					    scan_width);
+			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

@@ -716,7 +716,6 @@ struct ieee80211_if_mesh {
  *	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),
@@ -724,7 +723,6 @@ enum ieee80211_sub_if_data_flags {
 	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),
 };
 
 /**
@@ -804,6 +802,7 @@ enum txq_info_flags {
 struct txq_info {
 	struct sk_buff_head queue;
 	unsigned long flags;
+	unsigned long byte_cnt;
 
 	/* keep last! */
 	struct ieee80211_txq txq;
@@ -1466,7 +1465,13 @@ ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
 {
 	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,
@@ -1714,6 +1719,8 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
 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);
@@ -1829,20 +1836,6 @@ static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
 	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];
 
@@ -1986,12 +1979,10 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
 
 /* channel management */
-void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
+bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
-				  const struct ieee80211_ht_operation *ht_oper,
+			       struct cfg80211_chan_def *chandef);
-				  struct cfg80211_chan_def *chandef);
+bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper,
-void ieee80211_vht_oper_to_chandef(struct ieee80211_channel *control_chan,
+				struct cfg80211_chan_def *chandef);
-				   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

@@ -977,7 +977,11 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 	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);
 	}
 
@@ -1271,6 +1275,16 @@ static void ieee80211_iface_work(struct work_struct *work)
 				}
 			}
 			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

@@ -932,50 +932,6 @@ void ieee80211_gtk_rekey_notify(struct ieee80211_vif *vif, const u8 *bssid,
 }
 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)
 {
@@ -1029,48 +985,6 @@ void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf,
 }
 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

@@ -44,13 +44,17 @@ enum ieee80211_internal_tkip_state {
 };
 
 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 ieee80211_local *local;
 	struct ieee80211_sub_if_data *sdata;
@@ -71,7 +75,7 @@ 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

@@ -91,11 +91,10 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
 	if (sdata->vif.bss_conf.basic_rates != basic_rates)
 		return false;
 
-	ieee80211_ht_oper_to_chandef(sdata->vif.bss_conf.chandef.chan,
+	cfg80211_chandef_create(&sta_chan_def, sdata->vif.bss_conf.chandef.chan,
-				     ie->ht_operation, &sta_chan_def);
+				NL80211_CHAN_NO_HT);
-
+	ieee80211_chandef_ht_oper(ie->ht_operation, &sta_chan_def);
-	ieee80211_vht_oper_to_chandef(sdata->vif.bss_conf.chandef.chan,
+	ieee80211_chandef_vht_oper(ie->vht_operation, &sta_chan_def);
-				      ie->vht_operation, &sta_chan_def);
 
 	if (!cfg80211_chandef_compatible(&sdata->vif.bss_conf.chandef,
 					 &sta_chan_def))

net/mac80211/mesh.h

@@ -137,8 +137,6 @@ struct mesh_path {
  * @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.
  *
@@ -154,7 +152,6 @@ struct mesh_table {
 	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

@@ -55,16 +55,21 @@ int mpp_paths_generation;
 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,
+	return resize_dereference_paths(mesh_paths);
-		lockdep_is_held(&pathtbl_resize_lock));
 }
 
 static inline struct mesh_table *resize_dereference_mpp_paths(void)
 {
-	return rcu_dereference_protected(mpp_paths,
+	return resize_dereference_paths(mpp_paths);
-		lockdep_is_held(&pathtbl_resize_lock));
 }
 
 /*
@@ -160,11 +165,10 @@ static int mesh_table_grow(struct mesh_table *oldtbl,
 	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));
@@ -585,7 +589,7 @@ struct mesh_path *mesh_path_add(struct ieee80211_sub_if_data *sdata,
 
 	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++;
@@ -714,7 +718,7 @@ int mpp_path_add(struct ieee80211_sub_if_data *sdata,
 
 	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]);
@@ -835,6 +839,29 @@ void mesh_path_flush_by_nexthop(struct sta_info *sta)
 	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)
 {
@@ -876,14 +903,17 @@ void mesh_path_flush_by_iface(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;
@@ -892,8 +922,7 @@ int mesh_path_del(struct ieee80211_sub_if_data *sdata, const u8 *addr)
 	int hash_idx;
 	int err = 0;
 
-	read_lock_bh(&pathtbl_resize_lock);
+	tbl = resize_dereference_paths(rcu_tbl);
-	tbl = resize_dereference_mesh_paths();
 	hash_idx = mesh_table_hash(addr, sdata, tbl);
 	bucket = &tbl->hash_buckets[hash_idx];
 
@@ -909,9 +938,50 @@ int mesh_path_del(struct ieee80211_sub_if_data *sdata, const u8 *addr)
 
 	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;
 }
 
@@ -1076,7 +1146,6 @@ int mesh_pathtbl_init(void)
 		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;
@@ -1092,7 +1161,6 @@ int mesh_pathtbl_init(void)
 	}
 	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;
@@ -1131,6 +1199,17 @@ void mesh_path_expire(struct ieee80211_sub_if_data *sdata)
 		     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

@@ -976,6 +976,10 @@ mesh_plink_get_event(struct ieee80211_sub_if_data *sdata,
 			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");
@@ -985,12 +989,6 @@ mesh_plink_get_event(struct ieee80211_sub_if_data *sdata,
 			goto out;
 	}
 
-	/* new matching peer */
-	if (!sta) {
-		event = OPN_ACPT;
-		goto out;
-	}
-
 	switch (ftype) {
 	case WLAN_SP_MESH_PEERING_OPEN:
 		if (!matches_local)

net/mac80211/mlme.c

@@ -6,7 +6,7 @@
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * 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
@@ -196,16 +196,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
 
 	/* 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) {
+		ieee80211_chandef_ht_oper(ht_oper, chandef);
-		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;
-		}
 	} else {
 		/* 40 MHz (and 80 MHz) must be supported for VHT */
 		ret = IEEE80211_STA_DISABLE_VHT;
@@ -219,35 +210,11 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
 		goto out;
 	}
 
-	vht_chandef.chan = channel;
+	vht_chandef = *chandef;
-	vht_chandef.center_freq1 =
+	if (!ieee80211_chandef_vht_oper(vht_oper, &vht_chandef)) {
-		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:
 		if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
 			sdata_info(sdata,
-				   "AP VHT operation IE has invalid channel width (%d), disable VHT\n",
+				   "AP VHT information is invalid, disable VHT\n");
-				   vht_oper->chan_width);
 		ret = IEEE80211_STA_DISABLE_VHT;
 		goto out;
 	}
@@ -592,7 +559,7 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata,
 		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;
 			}
@@ -600,7 +567,7 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata,
 		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;
@@ -1638,8 +1605,7 @@ void ieee80211_dynamic_ps_timer(unsigned long data)
 
 void ieee80211_dfs_cac_timer_work(struct work_struct *work)
 {
-	struct delayed_work *delayed_work =
+	struct delayed_work *delayed_work = to_delayed_work(work);
-		container_of(work, struct delayed_work, work);
 	struct ieee80211_sub_if_data *sdata =
 		container_of(delayed_work, struct ieee80211_sub_if_data,
 			     dfs_cac_timer_work);
@@ -2079,7 +2045,14 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	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;
 
@@ -2536,7 +2509,8 @@ static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata,
 		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);
@@ -3571,6 +3545,9 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 				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);
@@ -3946,11 +3923,9 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 			 * We actually lost the connection ... or did we?
 			 * Let's make sure!
 			 */
-			wiphy_debug(local->hw.wiphy,
+			mlme_dbg(sdata,
-				    "%s: No probe response from AP %pM"
+				 "No probe response from AP %pM after %dms, disconnecting.\n",
-				    " after %dms, disconnecting.\n",
+				 bssid, probe_wait_ms);
-				    sdata->name,
-				    bssid, probe_wait_ms);
 
 			ieee80211_sta_connection_lost(sdata, bssid,
 				WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false);
@@ -4536,6 +4511,9 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 	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);
@@ -4604,6 +4582,9 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	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

@@ -4,6 +4,7 @@
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007-2010	Johannes Berg <johannes@sipsolutions.net>
  * 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
@@ -18,6 +19,7 @@
 #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>
@@ -122,7 +124,8 @@ static inline bool should_drop_frame(struct sk_buff *skb, int present_fcs_len,
 	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))
@@ -507,7 +510,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 		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);
@@ -797,6 +800,26 @@ static ieee80211_rx_result ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
 	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,
@@ -811,7 +834,7 @@ static void ieee80211_release_reorder_frame(struct ieee80211_sub_if_data *sdata,
 	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;
 	}
@@ -825,6 +848,7 @@ static void ieee80211_release_reorder_frame(struct ieee80211_sub_if_data *sdata,
 	}
 
 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);
 }
 
@@ -865,7 +889,7 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata,
 
 	/* 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
@@ -874,8 +898,7 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata,
 		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(
+			if (!ieee80211_rx_reorder_ready(tid_agg_rx, j)) {
-					&tid_agg_rx->reorder_buf[j])) {
 				skipped++;
 				continue;
 			}
@@ -902,8 +925,7 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata,
 				 skipped) & IEEE80211_SN_MASK;
 			skipped = 0;
 		}
-	} else while (ieee80211_rx_reorder_ready(
+	} else while (ieee80211_rx_reorder_ready(tid_agg_rx, index)) {
-				&tid_agg_rx->reorder_buf[index])) {
 		ieee80211_release_reorder_frame(sdata, tid_agg_rx, index,
 						frames);
 		index =	tid_agg_rx->head_seq_num % tid_agg_rx->buf_size;
@@ -914,8 +936,7 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata,
 
 		for (; j != (index - 1) % tid_agg_rx->buf_size;
 		     j = (j + 1) % tid_agg_rx->buf_size) {
-			if (ieee80211_rx_reorder_ready(
+			if (ieee80211_rx_reorder_ready(tid_agg_rx, j))
-					&tid_agg_rx->reorder_buf[j]))
 				break;
 		}
 
@@ -986,7 +1007,7 @@ static bool ieee80211_sta_manage_reorder_buf(struct ieee80211_sub_if_data *sdata
 	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;
 	}
@@ -1099,6 +1120,9 @@ ieee80211_rx_h_check_dup(struct ieee80211_rx_data *rx)
 	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
 	 * (IEEE 802.11-2012: 9.3.2.10 "Duplicate detection and recovery")
@@ -2199,9 +2223,6 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
 	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);
@@ -2231,7 +2252,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	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);
@@ -2290,6 +2311,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 			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();
@@ -2300,7 +2322,8 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	    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;
@@ -2738,6 +2761,11 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 						    opmode, status->band);
 			goto handled;
 		}
+		case WLAN_VHT_ACTION_GROUPID_MGMT: {
+			if (len < IEEE80211_MIN_ACTION_SIZE + 25)
+				goto invalid;
+			goto queue;
+		}
 		default:
 			break;
 		}
@@ -3275,6 +3303,85 @@ void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid)
 	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 */
 
 static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx)

net/mac80211/sta_info.c

@@ -116,6 +116,7 @@ static void __cleanup_single_sta(struct sta_info *sta)
 
 			ieee80211_purge_tx_queue(&local->hw, &txqi->queue);
 			atomic_sub(n, &sdata->txqs_len[txqi->txq.ac]);
+			txqi->byte_cnt = 0;
 		}
 	}
 
@@ -498,11 +499,17 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU)
 {
 	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)) {
 		err = -EEXIST;
@@ -530,14 +537,12 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU)
 	/* 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->generation = local->sta_generation;
-	sinfo.filled = 0;
+	cfg80211_new_sta(sdata->dev, sta->sta.addr, sinfo, GFP_KERNEL);
-	sinfo.generation = local->sta_generation;
+	kfree(sinfo);
-	cfg80211_new_sta(sdata->dev, sta->sta.addr, &sinfo, GFP_KERNEL);
 
 	sta_dbg(sdata, "Inserted STA %pM\n", sta->sta.addr);
 
@@ -557,6 +562,7 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU)
 	__cleanup_single_sta(sta);
  out_err:
 	mutex_unlock(&local->sta_mtx);
+	kfree(sinfo);
 	rcu_read_lock();
 	return err;
 }
@@ -898,7 +904,7 @@ static void __sta_info_destroy_part2(struct sta_info *sta)
 {
 	struct ieee80211_local *local = sta->local;
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
-	struct station_info sinfo = {};
+	struct station_info *sinfo;
 	int ret;
 
 	/*
@@ -936,12 +942,14 @@ static void __sta_info_destroy_part2(struct sta_info *sta)
 
 	sta_dbg(sdata, "Removed STA %pM\n", sta->sta.addr);
 
-	sta_set_sinfo(sta, &sinfo);
+	sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL);
-	cfg80211_del_sta_sinfo(sdata->dev, sta->sta.addr, &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);
 }
@@ -1808,14 +1816,17 @@ int sta_info_move_state(struct sta_info *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

@@ -1,6 +1,7 @@
 /*
  * 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
@@ -167,6 +168,8 @@ struct tid_ampdu_tx {
  *
  * @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.
@@ -194,6 +197,7 @@ struct tid_ampdu_tx {
 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;
@@ -212,20 +216,21 @@ struct tid_ampdu_rx {
 /**
  * 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
+ * @agg_session_valid: bitmap indicating which TID has a rx BA session open on
- *	to tid_tx[idx], which are protected by the sta spinlock)
+ * @work: work struct for starting/stopping aggregation
- *	tid_start_tx is also protected by sta->lock.
+ * @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;
@@ -233,6 +238,7 @@ struct sta_ampdu_mlme {
 	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

@@ -1,6 +1,7 @@
 /*
  * 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
@@ -142,15 +143,14 @@ static void tkip_mixing_phase2(const u8 *tk, struct tkip_ctx *ctx,
 /* 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, TKIP_PN_TO_IV16(pn));
-
+	*pos++ = (keyconf->keyidx << 6) | (1 << 5) /* Ext IV */;
-	pos = write_tkip_iv(pos, key->u.tkip.tx.iv16);
+	put_unaligned_le32(TKIP_PN_TO_IV32(pn), pos);
-	*pos++ = (key->conf.keyidx << 6) | (1 << 5) /* Ext IV */;
-	put_unaligned_le32(key->u.tkip.tx.iv32, pos);
 	return pos + 4;
 }
+EXPORT_SYMBOL_GPL(ieee80211_tkip_add_iv);
 
 static void ieee80211_compute_tkip_p1k(struct ieee80211_key *key, u32 iv32)
 {
@@ -250,6 +250,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm,
 	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;
@@ -265,37 +266,36 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm,
 	if ((keyid >> 6) != key->conf.keyidx)
 		return TKIP_DECRYPT_INVALID_KEYIDX;
 
-	if (key->u.tkip.rx[queue].state != TKIP_STATE_NOT_INIT &&
+	if (rx_ctx->ctx.state != TKIP_STATE_NOT_INIT &&
-	    (iv32 < key->u.tkip.rx[queue].iv32 ||
+	    (iv32 < rx_ctx->iv32 ||
-	     (iv32 == key->u.tkip.rx[queue].iv32 &&
+	     (iv32 == rx_ctx->iv32 && iv16 <= rx_ctx->iv16)))
-	      iv16 <= key->u.tkip.rx[queue].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 ||
+	if (rx_ctx->ctx.state == TKIP_STATE_NOT_INIT ||
-	    key->u.tkip.rx[queue].iv32 != iv32) {
+	    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);
+				iv32, rx_ctx->ctx.p1k);
-		key->u.tkip.rx[queue].state = TKIP_STATE_PHASE1_HW_UPLOADED;
+		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

@@ -13,8 +13,6 @@
 #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

@@ -80,7 +80,23 @@
 #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.
@@ -970,38 +986,25 @@ DEFINE_EVENT(local_only_evt, drv_tx_last_beacon,
 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_ampdu_params *params),
-		 struct ieee80211_sta *sta, u16 tid,
-		 u16 *ssn, u8 buf_size, bool amsdu),
 
-	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;
+		AMPDU_ACTION_ASSIGN;
-		__entry->action = action;
-		__entry->tid = tid;
-		__entry->ssn = ssn ? *ssn : 0;
-		__entry->buf_size = buf_size;
-		__entry->amsdu = amsdu;
 	),
 
 	TP_printk(
-		LOCAL_PR_FMT VIF_PR_FMT STA_PR_FMT " action:%d tid:%d buf:%d amsdu:%d",
+		LOCAL_PR_FMT VIF_PR_FMT AMPDU_ACTION_PR_FMT,
-		LOCAL_PR_ARG, VIF_PR_ARG, STA_PR_ARG, __entry->action,
+		LOCAL_PR_ARG, VIF_PR_ARG, AMPDU_ACTION_PR_ARG
-		__entry->tid, __entry->buf_size, __entry->amsdu
 	)
 );
 

net/mac80211/tx.c

@@ -710,6 +710,10 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 
 	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);
 
@@ -1266,7 +1270,11 @@ static void ieee80211_drv_tx(struct ieee80211_local *local,
 	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;
@@ -1294,6 +1302,8 @@ struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw,
 	if (!skb)
 		goto out;
 
+	txqi->byte_cnt -= skb->len;
+
 	atomic_dec(&sdata->txqs_len[ac]);
 	if (__netif_subqueue_stopped(sdata->dev, ac))
 		ieee80211_propagate_queue_wake(local, sdata->vif.hw_queue[ac]);
@@ -1665,15 +1675,24 @@ void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
 	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;
@@ -1724,6 +1743,35 @@ static bool ieee80211_parse_tx_radiotap(struct sk_buff *skb)
 				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
@@ -1738,6 +1786,32 @@ static bool ieee80211_parse_tx_radiotap(struct sk_buff *skb)
 	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
 	 * iterator->_max_length was sanity-checked against
@@ -1818,10 +1892,6 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
 	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();
 
 	/*
@@ -1883,6 +1953,11 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
 		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();
 
@@ -2099,8 +2174,11 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
 					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

@@ -4,7 +4,7 @@
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
  * 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
@@ -1928,6 +1928,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 			  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 |
@@ -2371,10 +2374,23 @@ u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
 
 	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;
@@ -2390,17 +2406,13 @@ u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
 	return pos + sizeof(struct ieee80211_vht_operation);
 }
 
-void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
+bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
-				  const struct ieee80211_ht_operation *ht_oper,
+			       struct cfg80211_chan_def *chandef)
-				  struct cfg80211_chan_def *chandef)
 {
 	enum nl80211_channel_type channel_type;
 
-	if (!ht_oper) {
+	if (!ht_oper)
-		cfg80211_chandef_create(chandef, control_chan,
+		return false;
-					NL80211_CHAN_NO_HT);
-		return;
-	}
 
 	switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
 	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
@@ -2414,42 +2426,66 @@ void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
 		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,
+bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper,
-				   const struct ieee80211_vht_operation *oper,
+				struct cfg80211_chan_def *chandef)
-				   struct cfg80211_chan_def *chandef)
 {
-	if (!oper)
+	struct cfg80211_chan_def new = *chandef;
-		return;
+	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 =
+	if (!cfg80211_chandef_valid(&new))
-		ieee80211_channel_to_frequency(oper->center_freq_seg1_idx,
+		return false;
-					       control_chan->band);
+
-	chandef->center_freq2 =
+	*chandef = new;
-		ieee80211_channel_to_frequency(oper->center_freq_seg2_idx,
+	return true;
-					       control_chan->band);
 }
 
 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
@@ -2672,6 +2708,18 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
 		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);
@@ -3357,3 +3405,17 @@ void ieee80211_init_tx_queue(struct ieee80211_sub_if_data *sdata,
 		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

@@ -1,6 +1,9 @@
 /*
  * 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.
@@ -278,6 +281,23 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
 	}
 
 	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)
@@ -425,6 +445,43 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 	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,
 				 enum ieee80211_band band)

net/mac80211/wpa.c

@@ -1,6 +1,7 @@
 /*
  * Copyright 2002-2004, Instant802 Networks, Inc.
  * Copyright 2008, Jouni Malinen <j@w1.fi>
+ * 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
@@ -183,7 +184,6 @@ mic_fail_no_key:
 	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;
@@ -191,6 +191,7 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	unsigned int hdrlen;
 	int len, tail;
+	u64 pn;
 	u8 *pos;
 
 	if (info->control.hw_key &&
@@ -222,12 +223,8 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 		return 0;
 
 	/* Increase IV for the frame */
-	spin_lock(&key->u.tkip.txlock);
+	pn = atomic64_inc_return(&key->conf.tx_pn);
-	key->u.tkip.tx.iv16++;
+	pos = ieee80211_tkip_add_iv(pos, &key->conf, pn);
-	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);
 
 	/* hwaccel - with software IV */
 	if (info->control.hw_key)

net/rfkill/Kconfig

@@ -41,5 +41,4 @@ config RFKILL_GPIO
 	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
+	  driver.
-	  rfkill_gpio_platform_data structure and pass that to the driver.

net/rfkill/core.c

@@ -57,6 +57,8 @@ struct rfkill {
 
 	bool			registered;
 	bool			persistent;
+	bool			polling_paused;
+	bool			suspended;
 
 	const struct rfkill_ops	*ops;
 	void			*data;
@@ -233,29 +235,6 @@ static void rfkill_event(struct rfkill *rfkill)
 	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
  *
@@ -285,7 +264,7 @@ static void rfkill_set_block(struct rfkill *rfkill, bool blocked)
 	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;
@@ -303,8 +282,8 @@ static void rfkill_set_block(struct rfkill *rfkill, bool blocked)
 	spin_lock_irqsave(&rfkill->lock, flags);
 	if (err) {
 		/*
-		 * Failed -- reset status to _prev, this may be different
+		 * Failed -- reset status to _PREV, which may be different
-		 * from what set set _PREV to earlier in this function
+		 * 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)
@@ -323,6 +302,19 @@ static void rfkill_set_block(struct rfkill *rfkill, bool blocked)
 		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);
 
@@ -332,8 +324,7 @@ 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,
+ * unless a specific switch is suspended.
- * that switch is left alone) or suspended.
  *
  * Caller must have acquired rfkill_global_mutex.
  */
@@ -341,15 +332,7 @@ static void __rfkill_switch_all(const enum rfkill_type type, bool blocked)
 {
 	struct rfkill *rfkill;
 
-	if (type == RFKILL_TYPE_ALL) {
+	rfkill_update_global_state(type, blocked);
-		int i;
-
-		for (i = 0; i < NUM_RFKILL_TYPES; i++)
-			rfkill_global_states[i].cur = blocked;
-	} else {
-		rfkill_global_states[type].cur = blocked;
-	}
-
 	list_for_each_entry(rfkill, &rfkill_list, node) {
 		if (rfkill->type != type && type != RFKILL_TYPE_ALL)
 			continue;
@@ -477,17 +460,28 @@ bool rfkill_get_global_sw_state(const enum rfkill_type type)
 }
 #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;
@@ -582,6 +576,34 @@ void rfkill_set_states(struct rfkill *rfkill, bool sw, bool hw)
 }
 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)
 {
@@ -591,38 +613,12 @@ static ssize_t name_show(struct device *dev, struct device_attribute *attr,
 }
 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);
 
@@ -730,20 +726,12 @@ static ssize_t state_store(struct device *dev, struct device_attribute *attr,
 }
 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,
@@ -768,7 +756,7 @@ static int rfkill_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
 	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);
@@ -786,6 +774,7 @@ void rfkill_pause_polling(struct rfkill *rfkill)
 	if (!rfkill->ops->poll)
 		return;
 
+	rfkill->polling_paused = true;
 	cancel_delayed_work_sync(&rfkill->poll_work);
 }
 EXPORT_SYMBOL(rfkill_pause_polling);
@@ -797,6 +786,11 @@ void rfkill_resume_polling(struct rfkill *rfkill)
 	if (!rfkill->ops->poll)
 		return;
 
+	rfkill->polling_paused = false;
+
+	if (rfkill->suspended)
+		return;
+
 	queue_delayed_work(system_power_efficient_wq,
 			   &rfkill->poll_work, 0);
 }
@@ -807,7 +801,8 @@ static int rfkill_suspend(struct device *dev)
 {
 	struct rfkill *rfkill = to_rfkill(dev);
 
-	rfkill_pause_polling(rfkill);
+	rfkill->suspended = true;
+	cancel_delayed_work_sync(&rfkill->poll_work);
 
 	return 0;
 }
@@ -817,12 +812,16 @@ static int rfkill_resume(struct device *dev)
 	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;
 }
@@ -1164,15 +1163,8 @@ static ssize_t rfkill_fop_write(struct file *file, const char __user *buf,
 
 	mutex_lock(&rfkill_global_mutex);
 
-	if (ev.op == RFKILL_OP_CHANGE_ALL) {
+	if (ev.op == RFKILL_OP_CHANGE_ALL)
-		if (ev.type == RFKILL_TYPE_ALL) {
+		rfkill_update_global_state(ev.type, ev.soft);
-			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;
-		}
-	}
 
 	list_for_each_entry(rfkill, &rfkill_list, node) {
 		if (rfkill->idx != ev.idx && ev.op != RFKILL_OP_CHANGE_ALL)
@@ -1261,10 +1253,8 @@ static struct miscdevice rfkill_miscdev = {
 static int __init rfkill_init(void)
 {
 	int error;
-	int i;
 
-	for (i = 0; i < NUM_RFKILL_TYPES; i++)
+	rfkill_update_global_state(RFKILL_TYPE_ALL, !rfkill_default_state);
-		rfkill_global_states[i].cur = !rfkill_default_state;
 
 	error = class_register(&rfkill_class);
 	if (error)

net/rfkill/rfkill-gpio.c

@@ -27,8 +27,6 @@
 #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;
@@ -81,7 +79,6 @@ static int rfkill_gpio_acpi_probe(struct device *dev,
 	if (!id)
 		return -ENODEV;
 
-	rfkill->name = dev_name(dev);
 	rfkill->type = (unsigned)id->driver_data;
 
 	return acpi_dev_add_driver_gpios(ACPI_COMPANION(dev),
@@ -90,24 +87,27 @@ static int rfkill_gpio_acpi_probe(struct device *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);
@@ -124,10 +124,8 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
 
 	rfkill->shutdown_gpio = gpio;
 
-	/* Make sure at-least one of the GPIO is defined and that
+	/* Make sure at-least one GPIO is defined for this instance */
-	 * a name is specified for this instance
+	if (!rfkill->reset_gpio && !rfkill->shutdown_gpio) {
-	 */
-	if ((!rfkill->reset_gpio && !rfkill->shutdown_gpio) || !rfkill->name) {
 		dev_err(&pdev->dev, "invalid platform data\n");
 		return -EINVAL;
 	}

net/wireless/Kconfig

@@ -50,8 +50,8 @@ config CFG80211_DEVELOPER_WARNINGS
 	default n
 	help
 	  This option enables some additional warnings that help
-	  cfg80211 developers and driver developers, but that can
+	  cfg80211 developers and driver developers, but beware that
-	  trigger due to races with userspace.
+	  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
@@ -61,19 +61,6 @@ config CFG80211_DEVELOPER_WARNINGS
 	  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"
 	depends on CFG80211 && EXPERT
@@ -123,7 +110,7 @@ config CFG80211_REG_RELAX_NO_IR
 	 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.
@@ -148,7 +135,7 @@ config CFG80211_DEBUGFS
 	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.
 
@@ -159,7 +146,7 @@ config CFG80211_INTERNAL_REGDB
 	---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,
@@ -172,7 +159,7 @@ config CFG80211_INTERNAL_REGDB
 
 	  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

@@ -352,6 +352,16 @@ struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv,
 	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

@@ -711,7 +711,7 @@ EXPORT_SYMBOL(cfg80211_rx_mgmt);
 
 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;
@@ -721,7 +721,6 @@ void cfg80211_dfs_channels_update_work(struct work_struct *work)
 	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

@@ -3,7 +3,7 @@
  *
  * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
- * Copyright 2015	Intel Deutschland GmbH
+ * Copyright 2015-2016	Intel Deutschland GmbH
  */
 
 #include <linux/if.h>
@@ -401,6 +401,7 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
 	[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 */
@@ -3461,6 +3462,10 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 			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 (!err) {
@@ -7281,9 +7286,11 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
-		if (!(rdev->wiphy.features &
+		if (!((rdev->wiphy.features &
-		      NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
+			NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
-		    !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
+		       (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
+		    !wiphy_ext_feature_isset(&rdev->wiphy,
+					     NL80211_EXT_FEATURE_RRM))
 			return -EINVAL;
 		req.flags |= ASSOC_REQ_USE_RRM;
 	}
@@ -7971,15 +7978,23 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
-		if (!(rdev->wiphy.features &
+		if (!((rdev->wiphy.features &
-		      NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
+			NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
-		    !(rdev->wiphy.features & NL80211_FEATURE_QUIET)) {
+		       (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);
 	err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
 	wdev_unlock(dev->ieee80211_ptr);

net/wireless/radiotap.c

@@ -43,6 +43,7 @@ static const struct radiotap_align_size rtap_namespace_sizes[] = {
 	[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

@@ -60,13 +60,6 @@
 #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.
@@ -178,12 +171,10 @@ enum nl80211_dfs_regions reg_get_dfs_region(struct wiphy *wiphy)
 	if (wiphy_regd->dfs_region == regd->dfs_region)
 		goto out;
 
-	REG_DBG_PRINT("%s: device specific dfs_region "
+	pr_debug("%s: device specific dfs_region (%s) disagrees with cfg80211's central dfs_region (%s)\n",
-		      "(%s) disagrees with cfg80211's "
+		 dev_name(&wiphy->dev),
-		      "central dfs_region (%s)\n",
+		 reg_dfs_region_str(wiphy_regd->dfs_region),
-		      dev_name(&wiphy->dev),
+		 reg_dfs_region_str(regd->dfs_region));
-		      reg_dfs_region_str(wiphy_regd->dfs_region),
-		      reg_dfs_region_str(regd->dfs_region));
 
 out:
 	return regd->dfs_region;
@@ -543,7 +534,7 @@ static DECLARE_DELAYED_WORK(crda_timeout, crda_timeout_work);
 
 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);
@@ -585,7 +576,7 @@ static int call_crda(const char *alpha2)
 
 	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");
 
@@ -1132,42 +1123,6 @@ const char *reg_initiator_name(enum nl80211_reg_initiator initiator)
 }
 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)
@@ -1242,20 +1197,19 @@ static void handle_channel(struct wiphy *wiphy,
 		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",
+			pr_debug("Disabling freq %d MHz for good\n",
-				      chan->center_freq);
+				 chan->center_freq);
 			chan->orig_flags |= IEEE80211_CHAN_DISABLED;
 			chan->flags = chan->orig_flags;
 		} else {
-			REG_DBG_PRINT("Disabling freq %d MHz\n",
+			pr_debug("Disabling freq %d MHz\n",
-				      chan->center_freq);
+				 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);
@@ -1393,18 +1347,15 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 		return true;
 
 	if (!lr) {
-		REG_DBG_PRINT("Ignoring regulatory request set by %s "
+		pr_debug("Ignoring regulatory request set by %s since last_request is not set\n",
-			      "since last_request is not set\n",
+			 reg_initiator_name(initiator));
-			      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 "
+		pr_debug("Ignoring regulatory request set by %s since the driver uses its own custom regulatory domain\n",
-			      "since the driver uses its own custom "
+			 reg_initiator_name(initiator));
-			      "regulatory domain\n",
-			      reg_initiator_name(initiator));
 		return true;
 	}
 
@@ -1415,10 +1366,8 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 	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 "
+		pr_debug("Ignoring regulatory request set by %s since the driver requires its own regulatory domain to be set first\n",
-			      "since the driver requires its own regulatory "
+			 reg_initiator_name(initiator));
-			      "domain to be set first\n",
-			      reg_initiator_name(initiator));
 		return true;
 	}
 
@@ -1699,7 +1648,7 @@ static void reg_check_chans_work(struct work_struct *work)
 {
 	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)
@@ -1781,8 +1730,8 @@ static void handle_channel_custom(struct wiphy *wiphy,
 	}
 
 	if (IS_ERR(reg_rule)) {
-		REG_DBG_PRINT("Disabling freq %d MHz as custom regd has no rule that fits it\n",
+		pr_debug("Disabling freq %d MHz as custom regd has no rule that fits it\n",
-			      chan->center_freq);
+			 chan->center_freq);
 		if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) {
 			chan->flags |= IEEE80211_CHAN_DISABLED;
 		} else {
@@ -1792,8 +1741,6 @@ static void handle_channel_custom(struct wiphy *wiphy,
 		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);
 
@@ -2524,7 +2471,7 @@ static void restore_alpha2(char *alpha2, bool reset_user)
 	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';
 
@@ -2534,24 +2481,24 @@ static void restore_alpha2(char *alpha2, bool reset_user)
 			 * 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",
+				pr_debug("Keeping preference on module parameter ieee80211_regdom: %c%c\n",
-					      ieee80211_regdom[0], ieee80211_regdom[1]);
+					 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",
+			pr_debug("Restoring regulatory settings while preserving user preference for: %c%c\n",
-				      user_alpha2[0], user_alpha2[1]);
+				 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",
+		pr_debug("Keeping preference on module parameter ieee80211_regdom: %c%c\n",
-			      ieee80211_regdom[0], ieee80211_regdom[1]);
+			 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)
@@ -2663,14 +2610,14 @@ static void restore_regulatory_settings(bool reset_user)
 	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);
 }
 
@@ -2718,10 +2665,10 @@ int regulatory_hint_found_beacon(struct wiphy *wiphy,
 	if (!reg_beacon)
 		return -ENOMEM;
 
-	REG_DBG_PRINT("Found new beacon on frequency: %d MHz (Ch %d) on %s\n",
+	pr_debug("Found new beacon on frequency: %d MHz (Ch %d) on %s\n",
-		      beacon_chan->center_freq,
+		 beacon_chan->center_freq,
-		      ieee80211_frequency_to_channel(beacon_chan->center_freq),
+		 ieee80211_frequency_to_channel(beacon_chan->center_freq),
-		      wiphy_name(wiphy));
+		 wiphy_name(wiphy));
 
 	memcpy(&reg_beacon->chan, beacon_chan,
 	       sizeof(struct ieee80211_channel));
@@ -2800,8 +2747,7 @@ bool reg_supported_dfs_region(enum nl80211_dfs_regions dfs_region)
 	case NL80211_DFS_JP:
 		return true;
 	default:
-		REG_DBG_PRINT("Ignoring uknown DFS master region: %d\n",
+		pr_debug("Ignoring uknown DFS master region: %d\n", dfs_region);
-			      dfs_region);
 		return false;
 	}
 }

net/wireless/sme.c

@@ -264,7 +264,7 @@ static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev)
 			       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;
@@ -687,7 +687,7 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 		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));
@@ -846,7 +846,7 @@ void cfg80211_roamed(struct net_device *dev,
 
 	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;
 
@@ -1017,6 +1017,9 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev,
 	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);
 	else

net/wireless/util.c

@@ -393,9 +393,9 @@ unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
 }
 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:
@@ -407,21 +407,31 @@ unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
 		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,
+static int __ieee80211_data_to_8023(struct sk_buff *skb, struct ethhdr *ehdr,
-			   enum nl80211_iftype iftype)
+				    const u8 *addr, enum nl80211_iftype iftype)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	u16 hdrlen, ethertype;
+	struct {
-	u8 *payload;
+		u8 hdr[ETH_ALEN] __aligned(2);
-	u8 dst[ETH_ALEN];
+		__be16 proto;
-	u8 src[ETH_ALEN] __aligned(2);
+	} 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
@@ -432,8 +442,11 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
 	 *   1     0   BSSID SA    DA    n/a
 	 *   1     1   RA    TA    DA    SA
 	 */
-	memcpy(dst, ieee80211_get_DA(hdr), ETH_ALEN);
+	memcpy(tmp.h_dest, ieee80211_get_DA(hdr), ETH_ALEN);
-	memcpy(src, ieee80211_get_SA(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)) {
@@ -450,44 +463,31 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
 			     iftype != NL80211_IFTYPE_STATION))
 			return -1;
 		if (iftype == NL80211_IFTYPE_MESH_POINT) {
-			struct ieee80211s_hdr *meshdr =
+			if (mesh_flags & MESH_FLAGS_AE_A4)
-				(struct ieee80211s_hdr *) (skb->data + hdrlen);
-			/* make sure meshdr->flags is on the linear part */
-			if (!pskb_may_pull(skb, hdrlen + 1))
 				return -1;
-			if (meshdr->flags & MESH_FLAGS_AE_A4)
+			if (mesh_flags & MESH_FLAGS_AE_A5_A6) {
-				return -1;
-			if (meshdr->flags & MESH_FLAGS_AE_A5_A6) {
 				skb_copy_bits(skb, hdrlen +
 					offsetof(struct ieee80211s_hdr, eaddr1),
-				       	dst, ETH_ALEN);
+					tmp.h_dest, 2 * ETH_ALEN);
-				skb_copy_bits(skb, hdrlen +
-					offsetof(struct ieee80211s_hdr, eaddr2),
-				        src, 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) &&
+		    (is_multicast_ether_addr(tmp.h_dest) &&
-		     ether_addr_equal(src, addr)))
+		     ether_addr_equal(tmp.h_source, addr)))
 			return -1;
 		if (iftype == NL80211_IFTYPE_MESH_POINT) {
-			struct ieee80211s_hdr *meshdr =
+			if (mesh_flags & MESH_FLAGS_AE_A5_A6)
-				(struct ieee80211s_hdr *) (skb->data + hdrlen);
-			/* make sure meshdr->flags is on the linear part */
-			if (!pskb_may_pull(skb, hdrlen + 1))
 				return -1;
-			if (meshdr->flags & MESH_FLAGS_AE_A5_A6)
+			if (mesh_flags & MESH_FLAGS_AE_A4)
-				return -1;
-			if (meshdr->flags & MESH_FLAGS_AE_A4)
 				skb_copy_bits(skb, hdrlen +
 					offsetof(struct ieee80211s_hdr, eaddr1),
-					src, ETH_ALEN);
+					tmp.h_source, ETH_ALEN);
-			hdrlen += ieee80211_get_mesh_hdrlen(meshdr);
+			hdrlen += __ieee80211_get_mesh_hdrlen(mesh_flags);
 		}
 		break;
 	case cpu_to_le16(0):
@@ -498,33 +498,33 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
 		break;
 	}
 
-	if (!pskb_may_pull(skb, hdrlen + 8))
+	skb_copy_bits(skb, hdrlen, &payload, sizeof(payload));
-		return -1;
+	tmp.h_proto = payload.proto;
 
-	payload = skb->data + hdrlen;
+	if (likely((ether_addr_equal(payload.hdr, rfc1042_header) &&
-	ethertype = (payload[6] << 8) | payload[7];
+		    tmp.h_proto != htons(ETH_P_AARP) &&
-
+		    tmp.h_proto != htons(ETH_P_IPX)) ||
-	if (likely((ether_addr_equal(payload, rfc1042_header) &&
+		   ether_addr_equal(payload.hdr, bridge_tunnel_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(skb, hdrlen + 6);
+		hdrlen += ETH_ALEN + 2;
-		memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN);
+	else
-		memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN);
+		tmp.h_proto = htons(skb->len);
-	} else {
-		struct ethhdr *ehdr;
-		__be16 len;
 
-		skb_pull(skb, hdrlen);
+	pskb_pull(skb, hdrlen);
-		len = htons(skb->len);
+
+	if (!ehdr)
 		ehdr = (struct ethhdr *) skb_push(skb, sizeof(struct ethhdr));
-		memcpy(ehdr->h_dest, dst, ETH_ALEN);
+	memcpy(ehdr, &tmp, sizeof(tmp));
-		memcpy(ehdr->h_source, src, ETH_ALEN);
+
-		ehdr->h_proto = len;
-	}
 	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);
 
 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
@@ -644,70 +644,147 @@ int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
 }
 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 offset = 0, remaining, err;
-	int remaining, err;
+	struct ethhdr eth;
-	u8 dst[ETH_ALEN], src[ETH_ALEN];
+	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 {
+			reuse_skb = true;
-			unsigned int hlen = ALIGN(extra_headroom, 4);
+		} else {
-			/*
+			frame = __ieee80211_amsdu_copy(skb, hlen, offset, len,
-			 * Allocate and reserve two bytes more for payload
+						       reuse_frag);
-			 * alignment since sizeof(struct ethhdr) is 14.
-			 */
-			frame = dev_alloc_skb(hlen + subframe_len + 2);
 			if (!frame)
 				goto purge;
 
-			skb_reserve(frame, hlen + sizeof(struct ethhdr) + 2);
+			offset += len + padding;
-			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;
-			}
 		}
 
 		skb_reset_network_header(frame);
@@ -716,24 +793,20 @@ void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
 
 		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
+			eth.h_proto = htons(ethertype);
-			 * encapsulation and replace EtherType */
+			skb_pull(frame, ETH_ALEN + 2);
-			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);
 		}
+
+		memcpy(skb_push(frame, sizeof(eth)), &eth, sizeof(eth));
 		__skb_queue_tail(list, frame);
 	}
 
+	if (!reuse_skb)
+		dev_kfree_skb(skb);
+
 	return;
 
  purge: