Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6

Documentation/networking/regulatory.txt

@@ -188,3 +188,27 @@ Then in some part of your code after your wiphy has been registered:
 		       &mydriver_jp_regdom.reg_rules[i],
 		       sizeof(struct ieee80211_reg_rule));
 	regulatory_struct_hint(rd);
+
+Statically compiled regulatory database
+---------------------------------------
+
+In most situations the userland solution using CRDA as described
+above is the preferred solution.  However in some cases a set of
+rules built into the kernel itself may be desirable.  To account
+for this situation, a configuration option has been provided
+(i.e. CONFIG_CFG80211_INTERNAL_REGDB).  With this option enabled,
+the wireless database information contained in net/wireless/db.txt is
+used to generate a data structure encoded in net/wireless/regdb.c.
+That option also enables code in net/wireless/reg.c which queries
+the data in regdb.c as an alternative to using CRDA.
+
+The file net/wireless/db.txt should be kept up-to-date with the db.txt
+file available in the git repository here:
+
+    git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-regdb.git
+
+Again, most users in most situations should be using the CRDA package
+provided with their distribution, and in most other situations users
+should be building and using CRDA on their own rather than using
+this option.  If you are not absolutely sure that you should be using
+CONFIG_CFG80211_INTERNAL_REGDB then _DO_NOT_USE_IT_.

drivers/net/wireless/ath/ar9170/ar9170.h

@@ -109,7 +109,6 @@ struct ar9170_rxstream_mpdu_merge {
 	bool has_plcp;
 };
 
-#define AR9170_NUM_MAX_BA_RETRY	5
 #define AR9170_NUM_TID	16
 #define WME_BA_BMP_SIZE         64
 #define AR9170_NUM_MAX_AGG_LEN	(2 * WME_BA_BMP_SIZE)
@@ -143,7 +142,6 @@ struct ar9170_sta_tid {
 	u16 tid;
 	enum ar9170_tid_state state;
 	bool active;
-	u8 retry;
 };
 
 #define AR9170_QUEUE_TIMEOUT		64
@@ -154,6 +152,8 @@ struct ar9170_sta_tid {
 
 #define AR9170_NUM_TX_STATUS		128
 #define AR9170_NUM_TX_AGG_MAX		30
+#define AR9170_NUM_TX_LIMIT_HARD       AR9170_TXQ_DEPTH
+#define AR9170_NUM_TX_LIMIT_SOFT       (AR9170_TXQ_DEPTH - 10)
 
 struct ar9170 {
 	struct ieee80211_hw *hw;
@@ -248,13 +248,8 @@ struct ar9170_sta_info {
 	unsigned int ampdu_max_len;
 };
 
-#define AR9170_TX_FLAG_WAIT_FOR_ACK	BIT(0)
-#define AR9170_TX_FLAG_NO_ACK		BIT(1)
-#define AR9170_TX_FLAG_BLOCK_ACK	BIT(2)
-
 struct ar9170_tx_info {
 	unsigned long timeout;
-	unsigned int flags;
 };
 
 #define IS_STARTED(a)		(((struct ar9170 *)a)->state >= AR9170_STARTED)

drivers/net/wireless/ath/ar9170/hw.h

@@ -276,6 +276,7 @@ struct ar9170_tx_control {
 #define AR9170_TX_MAC_RATE_PROBE		0x8000
 
 /* either-or */
+#define AR9170_TX_PHY_MOD_MASK			0x00000003
 #define AR9170_TX_PHY_MOD_CCK			0x00000000
 #define AR9170_TX_PHY_MOD_OFDM			0x00000001
 #define AR9170_TX_PHY_MOD_HT			0x00000002

drivers/net/wireless/ath/ar9170/mac.c

@@ -117,7 +117,7 @@ int ar9170_set_qos(struct ar9170 *ar)
 	ar9170_regwrite(AR9170_MAC_REG_AC1_AC0_TXOP,
 			ar->edcf[0].txop | ar->edcf[1].txop << 16);
 	ar9170_regwrite(AR9170_MAC_REG_AC3_AC2_TXOP,
-			ar->edcf[1].txop | ar->edcf[3].txop << 16);
+			ar->edcf[2].txop | ar->edcf[3].txop << 16);
 
 	ar9170_regwrite_finish();
 

drivers/net/wireless/ath/ar9170/main.c

@@ -194,12 +194,15 @@ static inline u16 ar9170_get_seq(struct sk_buff *skb)
 	return ar9170_get_seq_h((void *) txc->frame_data);
 }
 
+static inline u16 ar9170_get_tid_h(struct ieee80211_hdr *hdr)
+{
+	return (ieee80211_get_qos_ctl(hdr))[0] & IEEE80211_QOS_CTL_TID_MASK;
+}
+
 static inline u16 ar9170_get_tid(struct sk_buff *skb)
 {
 	struct ar9170_tx_control *txc = (void *) skb->data;
-	struct ieee80211_hdr *hdr = (void *) txc->frame_data;
-
-	return (ieee80211_get_qos_ctl(hdr))[0] & IEEE80211_QOS_CTL_TID_MASK;
+	return ar9170_get_tid_h((struct ieee80211_hdr *) txc->frame_data);
 }
 
 #define GET_NEXT_SEQ(seq)	((seq + 1) & 0x0fff)
@@ -213,10 +216,10 @@ static void ar9170_print_txheader(struct ar9170 *ar, struct sk_buff *skb)
 	struct ar9170_tx_info *arinfo = (void *) txinfo->rate_driver_data;
 	struct ieee80211_hdr *hdr = (void *) txc->frame_data;
 
-	printk(KERN_DEBUG "%s: => FRAME [skb:%p, q:%d, DA:[%pM] flags:%x s:%d "
+	printk(KERN_DEBUG "%s: => FRAME [skb:%p, q:%d, DA:[%pM] s:%d "
 			  "mac_ctrl:%04x, phy_ctrl:%08x, timeout:[%d ms]]\n",
 	       wiphy_name(ar->hw->wiphy), skb, skb_get_queue_mapping(skb),
-	       ieee80211_get_DA(hdr), arinfo->flags, ar9170_get_seq_h(hdr),
+	       ieee80211_get_DA(hdr), ar9170_get_seq_h(hdr),
 	       le16_to_cpu(txc->mac_control), le32_to_cpu(txc->phy_control),
 	       jiffies_to_msecs(arinfo->timeout - jiffies));
 }
@@ -430,7 +433,7 @@ void ar9170_tx_callback(struct ar9170 *ar, struct sk_buff *skb)
 	spin_lock_irqsave(&ar->tx_stats_lock, flags);
 	ar->tx_stats[queue].len--;
 
-	if (skb_queue_empty(&ar->tx_pending[queue])) {
+	if (ar->tx_stats[queue].len < AR9170_NUM_TX_LIMIT_SOFT) {
 #ifdef AR9170_QUEUE_STOP_DEBUG
 		printk(KERN_DEBUG "%s: wake queue %d\n",
 		       wiphy_name(ar->hw->wiphy), queue);
@@ -440,22 +443,17 @@ void ar9170_tx_callback(struct ar9170 *ar, struct sk_buff *skb)
 	}
 	spin_unlock_irqrestore(&ar->tx_stats_lock, flags);
 
-	if (arinfo->flags & AR9170_TX_FLAG_BLOCK_ACK) {
-		ar9170_tx_ampdu_callback(ar, skb);
-	} else if (arinfo->flags & AR9170_TX_FLAG_WAIT_FOR_ACK) {
-		arinfo->timeout = jiffies +
-				  msecs_to_jiffies(AR9170_TX_TIMEOUT);
-
-		skb_queue_tail(&ar->tx_status[queue], skb);
-	} else if (arinfo->flags & AR9170_TX_FLAG_NO_ACK) {
+	if (info->flags & IEEE80211_TX_CTL_NO_ACK) {
 		ar9170_tx_status(ar, skb, AR9170_TX_STATUS_FAILED);
 	} else {
-#ifdef AR9170_QUEUE_DEBUG
-		printk(KERN_DEBUG "%s: unsupported frame flags!\n",
-		       wiphy_name(ar->hw->wiphy));
-		ar9170_print_txheader(ar, skb);
-#endif /* AR9170_QUEUE_DEBUG */
-		dev_kfree_skb_any(skb);
+		if (info->flags & IEEE80211_TX_CTL_AMPDU) {
+			ar9170_tx_ampdu_callback(ar, skb);
+		} else {
+			arinfo->timeout = jiffies +
+				  msecs_to_jiffies(AR9170_TX_TIMEOUT);
+
+			skb_queue_tail(&ar->tx_status[queue], skb);
+		}
 	}
 
 	if (!ar->tx_stats[queue].len &&
@@ -1407,17 +1405,6 @@ static int ar9170_tx_prepare(struct ar9170 *ar, struct sk_buff *skb)
 
 	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
 	     (is_valid_ether_addr(ieee80211_get_DA(hdr)))) {
-		if (info->flags & IEEE80211_TX_CTL_AMPDU) {
-			if (unlikely(!info->control.sta))
-				goto err_out;
-
-			txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_AGGR);
-			arinfo->flags = AR9170_TX_FLAG_BLOCK_ACK;
-
-			goto out;
-		}
-
-		txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_RATE_PROBE);
 		/*
 		 * WARNING:
 		 * Putting the QoS queue bits into an unexplored territory is
@@ -1431,12 +1418,17 @@ static int ar9170_tx_prepare(struct ar9170 *ar, struct sk_buff *skb)
 
 		txc->phy_control |=
 			cpu_to_le32(queue << AR9170_TX_PHY_QOS_SHIFT);
-		arinfo->flags = AR9170_TX_FLAG_WAIT_FOR_ACK;
-	} else {
-		arinfo->flags = AR9170_TX_FLAG_NO_ACK;
+
+		if (info->flags & IEEE80211_TX_CTL_AMPDU) {
+			if (unlikely(!info->control.sta))
+				goto err_out;
+
+			txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_AGGR);
+		} else {
+			txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_RATE_PROBE);
+		}
 	}
 
-out:
 	return 0;
 
 err_out:
@@ -1671,8 +1663,7 @@ static bool ar9170_tx_ampdu(struct ar9170 *ar)
 		 * tell the FW/HW that this is the last frame,
 		 * that way it will wait for the immediate block ack.
 		 */
-		if (likely(skb_peek_tail(&agg)))
-			ar9170_tx_indicate_immba(ar, skb_peek_tail(&agg));
+		ar9170_tx_indicate_immba(ar, skb_peek_tail(&agg));
 
 #ifdef AR9170_TXAGG_DEBUG
 		printk(KERN_DEBUG "%s: generated A-MPDU looks like this:\n",
@@ -1716,6 +1707,21 @@ static void ar9170_tx(struct ar9170 *ar)
 
 	for (i = 0; i < __AR9170_NUM_TXQ; i++) {
 		spin_lock_irqsave(&ar->tx_stats_lock, flags);
+		frames = min(ar->tx_stats[i].limit - ar->tx_stats[i].len,
+			     skb_queue_len(&ar->tx_pending[i]));
+
+		if (remaining_space < frames) {
+#ifdef AR9170_QUEUE_DEBUG
+			printk(KERN_DEBUG "%s: tx quota reached queue:%d, "
+			       "remaining slots:%d, needed:%d\n",
+			       wiphy_name(ar->hw->wiphy), i, remaining_space,
+			       frames);
+#endif /* AR9170_QUEUE_DEBUG */
+			frames = remaining_space;
+		}
+
+		ar->tx_stats[i].len += frames;
+		ar->tx_stats[i].count += frames;
 		if (ar->tx_stats[i].len >= ar->tx_stats[i].limit) {
 #ifdef AR9170_QUEUE_DEBUG
 			printk(KERN_DEBUG "%s: queue %d full\n",
@@ -1733,25 +1739,8 @@ static void ar9170_tx(struct ar9170 *ar)
 			__ar9170_dump_txstats(ar);
 #endif /* AR9170_QUEUE_STOP_DEBUG */
 			ieee80211_stop_queue(ar->hw, i);
-			spin_unlock_irqrestore(&ar->tx_stats_lock, flags);
-			continue;
 		}
 
-		frames = min(ar->tx_stats[i].limit - ar->tx_stats[i].len,
-			     skb_queue_len(&ar->tx_pending[i]));
-
-		if (remaining_space < frames) {
-#ifdef AR9170_QUEUE_DEBUG
-			printk(KERN_DEBUG "%s: tx quota reached queue:%d, "
-			       "remaining slots:%d, needed:%d\n",
-			       wiphy_name(ar->hw->wiphy), i, remaining_space,
-			       frames);
-#endif /* AR9170_QUEUE_DEBUG */
-			frames = remaining_space;
-		}
-
-		ar->tx_stats[i].len += frames;
-		ar->tx_stats[i].count += frames;
 		spin_unlock_irqrestore(&ar->tx_stats_lock, flags);
 
 		if (!frames)
@@ -1773,7 +1762,7 @@ static void ar9170_tx(struct ar9170 *ar)
 			arinfo->timeout = jiffies +
 					  msecs_to_jiffies(AR9170_TX_TIMEOUT);
 
-			if (arinfo->flags == AR9170_TX_FLAG_BLOCK_ACK)
+			if (info->flags & IEEE80211_TX_CTL_AMPDU)
 				atomic_inc(&ar->tx_ampdu_pending);
 
 #ifdef AR9170_QUEUE_DEBUG
@@ -1784,7 +1773,7 @@ static void ar9170_tx(struct ar9170 *ar)
 
 			err = ar->tx(ar, skb);
 			if (unlikely(err)) {
-				if (arinfo->flags == AR9170_TX_FLAG_BLOCK_ACK)
+				if (info->flags & IEEE80211_TX_CTL_AMPDU)
 					atomic_dec(&ar->tx_ampdu_pending);
 
 				frames_failed++;
@@ -2366,7 +2355,6 @@ static void ar9170_sta_notify(struct ieee80211_hw *hw,
 			sta_info->agg[i].state = AR9170_TID_STATE_SHUTDOWN;
 			sta_info->agg[i].active = false;
 			sta_info->agg[i].ssn = 0;
-			sta_info->agg[i].retry = 0;
 			sta_info->agg[i].tid = i;
 			INIT_LIST_HEAD(&sta_info->agg[i].list);
 			skb_queue_head_init(&sta_info->agg[i].queue);

drivers/net/wireless/ath/ar9170/usb.c

@@ -84,6 +84,8 @@ static struct usb_device_id ar9170_usb_ids[] = {
 	{ USB_DEVICE(0x0cde, 0x0023) },
 	/* Z-Com UB82 ABG */
 	{ USB_DEVICE(0x0cde, 0x0026) },
+	/* Sphairon Homelink 1202 */
+	{ USB_DEVICE(0x0cde, 0x0027) },
 	/* Arcadyan WN7512 */
 	{ USB_DEVICE(0x083a, 0xf522) },
 	/* Planex GWUS300 */

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -453,7 +453,6 @@ struct ath_softc {
 	int irq;
 	spinlock_t sc_resetlock;
 	spinlock_t sc_serial_rw;
-	spinlock_t ani_lock;
 	spinlock_t sc_pm_lock;
 	struct mutex mutex;
 

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

@@ -289,23 +289,49 @@ static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
 	if (sc->cur_rate_table == NULL)
 		return 0;
 
-	max = 80 + sc->cur_rate_table->rate_cnt * 64;
+	max = 80 + sc->cur_rate_table->rate_cnt * 1024;
 	buf = kmalloc(max + 1, GFP_KERNEL);
 	if (buf == NULL)
 		return 0;
 	buf[max] = 0;
 
-	len += sprintf(buf, "%5s %15s %8s %9s %3s\n\n", "Rate", "Success",
-		       "Retries", "XRetries", "PER");
+	len += sprintf(buf, "%6s %6s %6s "
+		       "%10s %10s %10s %10s\n",
+		       "HT", "MCS", "Rate",
+		       "Success", "Retries", "XRetries", "PER");
 
 	for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) {
 		u32 ratekbps = sc->cur_rate_table->info[i].ratekbps;
 		struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i];
+		char mcs[5];
+		char htmode[5];
+		int used_mcs = 0, used_htmode = 0;
+
+		if (WLAN_RC_PHY_HT(sc->cur_rate_table->info[i].phy)) {
+			used_mcs = snprintf(mcs, 5, "%d",
+				sc->cur_rate_table->info[i].ratecode);
+
+			if (WLAN_RC_PHY_40(sc->cur_rate_table->info[i].phy))
+				used_htmode = snprintf(htmode, 5, "HT40");
+			else if (WLAN_RC_PHY_20(sc->cur_rate_table->info[i].phy))
+				used_htmode = snprintf(htmode, 5, "HT20");
+			else
+				used_htmode = snprintf(htmode, 5, "????");
+		}
+
+		mcs[used_mcs] = '\0';
+		htmode[used_htmode] = '\0';
 
 		len += snprintf(buf + len, max - len,
-			"%3u.%d: %8u %8u %8u %8u\n", ratekbps / 1000,
-			(ratekbps % 1000) / 100, stats->success,
-			stats->retries, stats->xretries,
+			"%6s %6s %3u.%d: "
+			"%10u %10u %10u %10u\n",
+			htmode,
+			mcs,
+			ratekbps / 1000,
+			(ratekbps % 1000) / 100,
+			stats->success,
+			stats->retries,
+			stats->xretries,
 			stats->per);
 	}
 

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

@@ -343,30 +343,6 @@ static bool ath9k_hw_chip_test(struct ath_hw *ah)
 	return true;
 }
 
-static const char *ath9k_hw_devname(u16 devid)
-{
-	switch (devid) {
-	case AR5416_DEVID_PCI:
-		return "Atheros 5416";
-	case AR5416_DEVID_PCIE:
-		return "Atheros 5418";
-	case AR9160_DEVID_PCI:
-		return "Atheros 9160";
-	case AR5416_AR9100_DEVID:
-		return "Atheros 9100";
-	case AR9280_DEVID_PCI:
-	case AR9280_DEVID_PCIE:
-		return "Atheros 9280";
-	case AR9285_DEVID_PCIE:
-		return "Atheros 9285";
-	case AR5416_DEVID_AR9287_PCI:
-	case AR5416_DEVID_AR9287_PCIE:
-		return "Atheros 9287";
-	}
-
-	return NULL;
-}
-
 static void ath9k_hw_init_config(struct ath_hw *ah)
 {
 	int i;
@@ -392,7 +368,7 @@ static void ath9k_hw_init_config(struct ath_hw *ah)
 		ah->config.spurchans[i][1] = AR_NO_SPUR;
 	}
 
-	ah->config.intr_mitigation = true;
+	ah->config.rx_intr_mitigation = true;
 
 	/*
 	 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
@@ -1184,7 +1160,7 @@ static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
 		AR_IMR_RXORN |
 		AR_IMR_BCNMISC;
 
-	if (ah->config.intr_mitigation)
+	if (ah->config.rx_intr_mitigation)
 		ah->mask_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
 	else
 		ah->mask_reg |= AR_IMR_RXOK;
@@ -1266,12 +1242,6 @@ static void ath9k_hw_init_user_settings(struct ath_hw *ah)
 		ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
 }
 
-const char *ath9k_hw_probe(u16 vendorid, u16 devid)
-{
-	return vendorid == ATHEROS_VENDOR_ID ?
-		ath9k_hw_devname(devid) : NULL;
-}
-
 void ath9k_hw_detach(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
@@ -2121,7 +2091,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 
 	REG_WRITE(ah, AR_OBS, 8);
 
-	if (ah->config.intr_mitigation) {
+	if (ah->config.rx_intr_mitigation) {
 		REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
 		REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
 	}
@@ -2781,7 +2751,7 @@ bool ath9k_hw_getisr(struct ath_hw *ah, enum ath9k_int *masked)
 
 		*masked = isr & ATH9K_INT_COMMON;
 
-		if (ah->config.intr_mitigation) {
+		if (ah->config.rx_intr_mitigation) {
 			if (isr & (AR_ISR_RXMINTR | AR_ISR_RXINTM))
 				*masked |= ATH9K_INT_RX;
 		}
@@ -2914,7 +2884,7 @@ enum ath9k_int ath9k_hw_set_interrupts(struct ath_hw *ah, enum ath9k_int ints)
 	}
 	if (ints & ATH9K_INT_RX) {
 		mask |= AR_IMR_RXERR;
-		if (ah->config.intr_mitigation)
+		if (ah->config.rx_intr_mitigation)
 			mask |= AR_IMR_RXMINTR | AR_IMR_RXINTM;
 		else
 			mask |= AR_IMR_RXOK | AR_IMR_RXDESC;

drivers/net/wireless/ath/ath9k/hw.h

@@ -212,7 +212,7 @@ struct ath9k_ops_config {
 	u32 cck_trig_low;
 	u32 enable_ani;
 	int serialize_regmode;
-	bool intr_mitigation;
+	bool rx_intr_mitigation;
 #define SPUR_DISABLE        	0
 #define SPUR_ENABLE_IOCTL   	1
 #define SPUR_ENABLE_EEPROM  	2

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

@@ -363,14 +363,6 @@ static void ath_ani_calibrate(unsigned long data)
 	short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ?
 		ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL;
 
-	/*
-	* don't calibrate when we're scanning.
-	* we are most likely not on our home channel.
-	*/
-	spin_lock(&sc->ani_lock);
-	if (sc->sc_flags & SC_OP_SCANNING)
-		goto set_timer;
-
 	/* Only calibrate if awake */
 	if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE)
 		goto set_timer;
@@ -437,7 +429,6 @@ static void ath_ani_calibrate(unsigned long data)
 	ath9k_ps_restore(sc);
 
 set_timer:
-	spin_unlock(&sc->ani_lock);
 	/*
 	* Set timer interval based on previous results.
 	* The interval must be the shortest necessary to satisfy ANI,
@@ -1610,7 +1601,6 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
 	spin_lock_init(&sc->wiphy_lock);
 	spin_lock_init(&sc->sc_resetlock);
 	spin_lock_init(&sc->sc_serial_rw);
-	spin_lock_init(&sc->ani_lock);
 	spin_lock_init(&sc->sc_pm_lock);
 	mutex_init(&sc->mutex);
 	tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
@@ -3119,6 +3109,7 @@ static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
 {
 	struct ath_wiphy *aphy = hw->priv;
 	struct ath_softc *sc = aphy->sc;
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 
 	mutex_lock(&sc->mutex);
 	if (ath9k_wiphy_scanning(sc)) {
@@ -3134,10 +3125,9 @@ static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
 
 	aphy->state = ATH_WIPHY_SCAN;
 	ath9k_wiphy_pause_all_forced(sc, aphy);
-
-	spin_lock_bh(&sc->ani_lock);
 	sc->sc_flags |= SC_OP_SCANNING;
-	spin_unlock_bh(&sc->ani_lock);
+	del_timer_sync(&common->ani.timer);
+	cancel_delayed_work_sync(&sc->tx_complete_work);
 	mutex_unlock(&sc->mutex);
 }
 
@@ -3145,13 +3135,14 @@ static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
 {
 	struct ath_wiphy *aphy = hw->priv;
 	struct ath_softc *sc = aphy->sc;
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 
 	mutex_lock(&sc->mutex);
-	spin_lock_bh(&sc->ani_lock);
 	aphy->state = ATH_WIPHY_ACTIVE;
 	sc->sc_flags &= ~SC_OP_SCANNING;
 	sc->sc_flags |= SC_OP_FULL_RESET;
-	spin_unlock_bh(&sc->ani_lock);
+	ath_start_ani(common);
+	ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
 	ath_beacon_config(sc, NULL);
 	mutex_unlock(&sc->mutex);
 }

drivers/net/wireless/ath/ath9k/rc.h

@@ -57,6 +57,10 @@ enum {
 				|| (_phy == WLAN_RC_PHY_HT_40_DS)	\
 				|| (_phy == WLAN_RC_PHY_HT_20_DS_HGI)	\
 				|| (_phy == WLAN_RC_PHY_HT_40_DS_HGI))
+#define WLAN_RC_PHY_20(_phy)   ((_phy == WLAN_RC_PHY_HT_20_SS)		\
+				|| (_phy == WLAN_RC_PHY_HT_20_DS)	\
+				|| (_phy == WLAN_RC_PHY_HT_20_SS_HGI)	\
+				|| (_phy == WLAN_RC_PHY_HT_20_DS_HGI))
 #define WLAN_RC_PHY_40(_phy)   ((_phy == WLAN_RC_PHY_HT_40_SS)		\
 				|| (_phy == WLAN_RC_PHY_HT_40_DS)	\
 				|| (_phy == WLAN_RC_PHY_HT_40_SS_HGI)	\

drivers/net/wireless/hostap/hostap_hw.c

@@ -2618,6 +2618,15 @@ static irqreturn_t prism2_interrupt(int irq, void *dev_id)
 	int events = 0;
 	u16 ev;
 
+	/* Detect early interrupt before driver is fully configued */
+	if (!dev->base_addr) {
+		if (net_ratelimit()) {
+			printk(KERN_DEBUG "%s: Interrupt, but dev not configured\n",
+			       dev->name);
+		}
+		return IRQ_HANDLED;
+	}
+
 	iface = netdev_priv(dev);
 	local = iface->local;
 

drivers/net/wireless/iwlwifi/iwl-1000.c

@@ -105,6 +105,7 @@ static struct iwl_lib_ops iwl1000_lib = {
 	.load_ucode = iwl5000_load_ucode,
 	.dump_nic_event_log = iwl_dump_nic_event_log,
 	.dump_nic_error_log = iwl_dump_nic_error_log,
+	.dump_csr = iwl_dump_csr,
 	.init_alive_start = iwl5000_init_alive_start,
 	.alive_notify = iwl5000_alive_notify,
 	.send_tx_power = iwl5000_send_tx_power,
@@ -140,7 +141,7 @@ static struct iwl_lib_ops iwl1000_lib = {
 	 },
 };
 
-static struct iwl_ops iwl1000_ops = {
+static const struct iwl_ops iwl1000_ops = {
 	.ucode = &iwl5000_ucode,
 	.lib = &iwl1000_lib,
 	.hcmd = &iwl5000_hcmd,
@@ -173,7 +174,6 @@ struct iwl_cfg iwl1000_bgn_cfg = {
 	.use_rts_for_ht = true, /* use rts/cts protection */
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 	.support_ct_kill_exit = true,
-	.sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 struct iwl_cfg iwl1000_bg_cfg = {

drivers/net/wireless/iwlwifi/iwl-3945.c

@@ -2810,7 +2810,7 @@ static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = {
 	.rts_tx_cmd_flag = iwlcore_rts_tx_cmd_flag,
 };
 
-static struct iwl_ops iwl3945_ops = {
+static const struct iwl_ops iwl3945_ops = {
 	.ucode = &iwl3945_ucode,
 	.lib = &iwl3945_lib,
 	.hcmd = &iwl3945_hcmd,

drivers/net/wireless/iwlwifi/iwl-3945.h

@@ -227,7 +227,8 @@ extern void iwl3945_rx_replenish(void *data);
 extern void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
 					struct ieee80211_hdr *hdr,int left);
-extern void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log);
+extern int iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
+				       char **buf, bool display);
 extern void iwl3945_dump_nic_error_log(struct iwl_priv *priv);
 
 /*

drivers/net/wireless/iwlwifi/iwl-4965.c

@@ -2208,7 +2208,7 @@ static struct iwl_lib_ops iwl4965_lib = {
 	},
 };
 
-static struct iwl_ops iwl4965_ops = {
+static const struct iwl_ops iwl4965_ops = {
 	.ucode = &iwl4965_ucode,
 	.lib = &iwl4965_lib,
 	.hcmd = &iwl4965_hcmd,
@@ -2239,7 +2239,6 @@ struct iwl_cfg iwl4965_agn_cfg = {
 	.broken_powersave = true,
 	.led_compensation = 61,
 	.chain_noise_num_beacons = IWL4965_CAL_NUM_BEACONS,
-	.sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 /* Module firmware */

drivers/net/wireless/iwlwifi/iwl-5000.c

@@ -1466,6 +1466,7 @@ struct iwl_lib_ops iwl5000_lib = {
 	.is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
 	.dump_nic_event_log = iwl_dump_nic_event_log,
 	.dump_nic_error_log = iwl_dump_nic_error_log,
+	.dump_csr = iwl_dump_csr,
 	.load_ucode = iwl5000_load_ucode,
 	.init_alive_start = iwl5000_init_alive_start,
 	.alive_notify = iwl5000_alive_notify,
@@ -1518,6 +1519,7 @@ static struct iwl_lib_ops iwl5150_lib = {
 	.is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
 	.dump_nic_event_log = iwl_dump_nic_event_log,
 	.dump_nic_error_log = iwl_dump_nic_error_log,
+	.dump_csr = iwl_dump_csr,
 	.load_ucode = iwl5000_load_ucode,
 	.init_alive_start = iwl5000_init_alive_start,
 	.alive_notify = iwl5000_alive_notify,
@@ -1555,7 +1557,7 @@ static struct iwl_lib_ops iwl5150_lib = {
 	 },
 };
 
-static struct iwl_ops iwl5000_ops = {
+static const struct iwl_ops iwl5000_ops = {
 	.ucode = &iwl5000_ucode,
 	.lib = &iwl5000_lib,
 	.hcmd = &iwl5000_hcmd,
@@ -1563,7 +1565,7 @@ static struct iwl_ops iwl5000_ops = {
 	.led = &iwlagn_led_ops,
 };
 
-static struct iwl_ops iwl5150_ops = {
+static const struct iwl_ops iwl5150_ops = {
 	.ucode = &iwl5000_ucode,
 	.lib = &iwl5150_lib,
 	.hcmd = &iwl5000_hcmd,
@@ -1599,7 +1601,6 @@ struct iwl_cfg iwl5300_agn_cfg = {
 	.ht_greenfield_support = true,
 	.led_compensation = 51,
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-	.sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 struct iwl_cfg iwl5100_bgn_cfg = {
@@ -1668,7 +1669,6 @@ struct iwl_cfg iwl5100_agn_cfg = {
 	.ht_greenfield_support = true,
 	.led_compensation = 51,
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-	.sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 struct iwl_cfg iwl5350_agn_cfg = {
@@ -1692,7 +1692,6 @@ struct iwl_cfg iwl5350_agn_cfg = {
 	.ht_greenfield_support = true,
 	.led_compensation = 51,
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-	.sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 struct iwl_cfg iwl5150_agn_cfg = {
@@ -1716,7 +1715,6 @@ struct iwl_cfg iwl5150_agn_cfg = {
 	.ht_greenfield_support = true,
 	.led_compensation = 51,
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-	.sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 struct iwl_cfg iwl5150_abg_cfg = {

drivers/net/wireless/iwlwifi/iwl-6000.c

@@ -215,6 +215,7 @@ static struct iwl_lib_ops iwl6000_lib = {
 	.load_ucode = iwl5000_load_ucode,
 	.dump_nic_event_log = iwl_dump_nic_event_log,
 	.dump_nic_error_log = iwl_dump_nic_error_log,
+	.dump_csr = iwl_dump_csr,
 	.init_alive_start = iwl5000_init_alive_start,
 	.alive_notify = iwl5000_alive_notify,
 	.send_tx_power = iwl5000_send_tx_power,
@@ -252,7 +253,7 @@ static struct iwl_lib_ops iwl6000_lib = {
 	 },
 };
 
-static struct iwl_ops iwl6000_ops = {
+static const struct iwl_ops iwl6000_ops = {
 	.ucode = &iwl5000_ucode,
 	.lib = &iwl6000_lib,
 	.hcmd = &iwl5000_hcmd,
@@ -267,7 +268,7 @@ static struct iwl_hcmd_utils_ops iwl6050_hcmd_utils = {
 	.calc_rssi = iwl5000_calc_rssi,
 };
 
-static struct iwl_ops iwl6050_ops = {
+static const struct iwl_ops iwl6050_ops = {
 	.ucode = &iwl5000_ucode,
 	.lib = &iwl6000_lib,
 	.hcmd = &iwl5000_hcmd,
@@ -306,7 +307,6 @@ struct iwl_cfg iwl6000i_2agn_cfg = {
 	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
-	.sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 struct iwl_cfg iwl6000i_2abg_cfg = {
@@ -395,7 +395,6 @@ struct iwl_cfg iwl6050_2agn_cfg = {
 	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
-	.sm_ps_mode = WLAN_HT_CAP_SM_PS_DYNAMIC,
 };
 
 struct iwl_cfg iwl6050_2abg_cfg = {
@@ -455,7 +454,6 @@ struct iwl_cfg iwl6000_3agn_cfg = {
 	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
-	.sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_MAX));

drivers/net/wireless/iwlwifi/iwl-agn.c

@@ -657,6 +657,131 @@ static void iwl_bg_statistics_periodic(unsigned long data)
 	iwl_send_statistics_request(priv, CMD_ASYNC, false);
 }
 
+
+static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
+					u32 start_idx, u32 num_events,
+					u32 mode)
+{
+	u32 i;
+	u32 ptr;        /* SRAM byte address of log data */
+	u32 ev, time, data; /* event log data */
+	unsigned long reg_flags;
+
+	if (mode == 0)
+		ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
+	else
+		ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
+
+	/* Make sure device is powered up for SRAM reads */
+	spin_lock_irqsave(&priv->reg_lock, reg_flags);
+	if (iwl_grab_nic_access(priv)) {
+		spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
+		return;
+	}
+
+	/* Set starting address; reads will auto-increment */
+	_iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr);
+	rmb();
+
+	/*
+	 * "time" is actually "data" for mode 0 (no timestamp).
+	 * place event id # at far right for easier visual parsing.
+	 */
+	for (i = 0; i < num_events; i++) {
+		ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+		time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+		if (mode == 0) {
+			trace_iwlwifi_dev_ucode_cont_event(priv,
+							0, time, ev);
+		} else {
+			data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+			trace_iwlwifi_dev_ucode_cont_event(priv,
+						time, data, ev);
+		}
+	}
+	/* Allow device to power down */
+	iwl_release_nic_access(priv);
+	spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
+}
+
+void iwl_continuous_event_trace(struct iwl_priv *priv)
+{
+	u32 capacity;   /* event log capacity in # entries */
+	u32 base;       /* SRAM byte address of event log header */
+	u32 mode;       /* 0 - no timestamp, 1 - timestamp recorded */
+	u32 num_wraps;  /* # times uCode wrapped to top of log */
+	u32 next_entry; /* index of next entry to be written by uCode */
+
+	if (priv->ucode_type == UCODE_INIT)
+		base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
+	else
+		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+	if (priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
+		capacity = iwl_read_targ_mem(priv, base);
+		num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
+		mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
+		next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
+	} else
+		return;
+
+	if (num_wraps == priv->event_log.num_wraps) {
+		iwl_print_cont_event_trace(priv,
+				       base, priv->event_log.next_entry,
+				       next_entry - priv->event_log.next_entry,
+				       mode);
+		priv->event_log.non_wraps_count++;
+	} else {
+		if ((num_wraps - priv->event_log.num_wraps) > 1)
+			priv->event_log.wraps_more_count++;
+		else
+			priv->event_log.wraps_once_count++;
+		trace_iwlwifi_dev_ucode_wrap_event(priv,
+				num_wraps - priv->event_log.num_wraps,
+				next_entry, priv->event_log.next_entry);
+		if (next_entry < priv->event_log.next_entry) {
+			iwl_print_cont_event_trace(priv, base,
+			       priv->event_log.next_entry,
+			       capacity - priv->event_log.next_entry,
+			       mode);
+
+			iwl_print_cont_event_trace(priv, base, 0,
+				next_entry, mode);
+		} else {
+			iwl_print_cont_event_trace(priv, base,
+			       next_entry, capacity - next_entry,
+			       mode);
+
+			iwl_print_cont_event_trace(priv, base, 0,
+				next_entry, mode);
+		}
+	}
+	priv->event_log.num_wraps = num_wraps;
+	priv->event_log.next_entry = next_entry;
+}
+
+/**
+ * iwl_bg_ucode_trace - Timer callback to log ucode event
+ *
+ * The timer is continually set to execute every
+ * UCODE_TRACE_PERIOD milliseconds after the last timer expired
+ * this function is to perform continuous uCode event logging operation
+ * if enabled
+ */
+static void iwl_bg_ucode_trace(unsigned long data)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)data;
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	if (priv->event_log.ucode_trace) {
+		iwl_continuous_event_trace(priv);
+		/* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
+		mod_timer(&priv->ucode_trace,
+			 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
+	}
+}
+
 static void iwl_rx_beacon_notif(struct iwl_priv *priv,
 				struct iwl_rx_mem_buffer *rxb)
 {
@@ -689,12 +814,14 @@ static void iwl_rx_card_state_notif(struct iwl_priv *priv,
 	u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
 	unsigned long status = priv->status;
 
-	IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s\n",
+	IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s CT:%s\n",
 			  (flags & HW_CARD_DISABLED) ? "Kill" : "On",
-			  (flags & SW_CARD_DISABLED) ? "Kill" : "On");
+			  (flags & SW_CARD_DISABLED) ? "Kill" : "On",
+			  (flags & CT_CARD_DISABLED) ?
+			  "Reached" : "Not reached");
 
 	if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
-		     RF_CARD_DISABLED)) {
+		     CT_CARD_DISABLED)) {
 
 		iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
 			    CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
@@ -708,10 +835,10 @@ static void iwl_rx_card_state_notif(struct iwl_priv *priv,
 			iwl_write_direct32(priv, HBUS_TARG_MBX_C,
 					HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
 		}
-		if (flags & RF_CARD_DISABLED)
+		if (flags & CT_CARD_DISABLED)
 			iwl_tt_enter_ct_kill(priv);
 	}
-	if (!(flags & RF_CARD_DISABLED))
+	if (!(flags & CT_CARD_DISABLED))
 		iwl_tt_exit_ct_kill(priv);
 
 	if (flags & HW_CARD_DISABLED)
@@ -1705,8 +1832,9 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
  * iwl_print_event_log - Dump error event log to syslog
  *
  */
-static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
-				u32 num_events, u32 mode)
+static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
+			       u32 num_events, u32 mode,
+			       int pos, char **buf, size_t bufsz)
 {
 	u32 i;
 	u32 base;       /* SRAM byte address of event log header */
@@ -1716,7 +1844,7 @@ static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
 	unsigned long reg_flags;
 
 	if (num_events == 0)
-		return;
+		return pos;
 	if (priv->ucode_type == UCODE_INIT)
 		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
 	else
@@ -1744,27 +1872,44 @@ static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
 		time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
 		if (mode == 0) {
 			/* data, ev */
-			trace_iwlwifi_dev_ucode_event(priv, 0, time, ev);
-			IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", time, ev);
+			if (bufsz) {
+				pos += scnprintf(*buf + pos, bufsz - pos,
+						"EVT_LOG:0x%08x:%04u\n",
+						time, ev);
+			} else {
+				trace_iwlwifi_dev_ucode_event(priv, 0,
+					time, ev);
+				IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n",
+					time, ev);
+			}
 		} else {
 			data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
-			IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
+			if (bufsz) {
+				pos += scnprintf(*buf + pos, bufsz - pos,
+						"EVT_LOGT:%010u:0x%08x:%04u\n",
+						 time, data, ev);
+			} else {
+				IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
 					time, data, ev);
-			trace_iwlwifi_dev_ucode_event(priv, time, data, ev);
+				trace_iwlwifi_dev_ucode_event(priv, time,
+					data, ev);
+			}
 		}
 	}
 
 	/* Allow device to power down */
 	iwl_release_nic_access(priv);
 	spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
+	return pos;
 }
 
 /**
  * iwl_print_last_event_logs - Dump the newest # of event log to syslog
  */
-static void iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
-				      u32 num_wraps, u32 next_entry,
-				      u32 size, u32 mode)
+static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
+				    u32 num_wraps, u32 next_entry,
+				    u32 size, u32 mode,
+				    int pos, char **buf, size_t bufsz)
 {
 	/*
 	 * display the newest DEFAULT_LOG_ENTRIES entries
@@ -1772,21 +1917,26 @@ static void iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
 	 */
 	if (num_wraps) {
 		if (next_entry < size) {
-			iwl_print_event_log(priv,
-					capacity - (size - next_entry),
-					size - next_entry, mode);
-			iwl_print_event_log(priv, 0,
-				    next_entry, mode);
+			pos = iwl_print_event_log(priv,
+						capacity - (size - next_entry),
+						size - next_entry, mode,
+						pos, buf, bufsz);
+			pos = iwl_print_event_log(priv, 0,
+						  next_entry, mode,
+						  pos, buf, bufsz);
 		} else
-			iwl_print_event_log(priv, next_entry - size,
-				    size, mode);
+			pos = iwl_print_event_log(priv, next_entry - size,
+						  size, mode, pos, buf, bufsz);
 	} else {
-		if (next_entry < size)
-			iwl_print_event_log(priv, 0, next_entry, mode);
-		else
-			iwl_print_event_log(priv, next_entry - size,
-					    size, mode);
+		if (next_entry < size) {
+			pos = iwl_print_event_log(priv, 0, next_entry,
+						  mode, pos, buf, bufsz);
+		} else {
+			pos = iwl_print_event_log(priv, next_entry - size,
+						  size, mode, pos, buf, bufsz);
+		}
 	}
+	return pos;
 }
 
 /* For sanity check only.  Actual size is determined by uCode, typ. 512 */
@@ -1794,7 +1944,8 @@ static void iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
 
 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
 
-void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
+int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
+			    char **buf, bool display)
 {
 	u32 base;       /* SRAM byte address of event log header */
 	u32 capacity;   /* event log capacity in # entries */
@@ -1802,6 +1953,8 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
 	u32 num_wraps;  /* # times uCode wrapped to top of log */
 	u32 next_entry; /* index of next entry to be written by uCode */
 	u32 size;       /* # entries that we'll print */
+	int pos = 0;
+	size_t bufsz = 0;
 
 	if (priv->ucode_type == UCODE_INIT)
 		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
@@ -1812,7 +1965,7 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
 		IWL_ERR(priv,
 			"Invalid event log pointer 0x%08X for %s uCode\n",
 			base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT");
-		return;
+		return pos;
 	}
 
 	/* event log header */
@@ -1838,7 +1991,7 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
 	/* bail out if nothing in log */
 	if (size == 0) {
 		IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
-		return;
+		return pos;
 	}
 
 #ifdef CONFIG_IWLWIFI_DEBUG
@@ -1853,6 +2006,15 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
 		size);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
+	if (display) {
+		if (full_log)
+			bufsz = capacity * 48;
+		else
+			bufsz = size * 48;
+		*buf = kmalloc(bufsz, GFP_KERNEL);
+		if (!*buf)
+			return pos;
+	}
 	if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) {
 		/*
 		 * if uCode has wrapped back to top of log,
@@ -1860,17 +2022,22 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
 		 * i.e the next one that uCode would fill.
 		 */
 		if (num_wraps)
-			iwl_print_event_log(priv, next_entry,
-					    capacity - next_entry, mode);
+			pos = iwl_print_event_log(priv, next_entry,
+						capacity - next_entry, mode,
+						pos, buf, bufsz);
 		/* (then/else) start at top of log */
-		iwl_print_event_log(priv, 0, next_entry, mode);
+		pos = iwl_print_event_log(priv, 0,
+					  next_entry, mode, pos, buf, bufsz);
 	} else
-		iwl_print_last_event_logs(priv, capacity, num_wraps,
-					next_entry, size, mode);
+		pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
+						next_entry, size, mode,
+						pos, buf, bufsz);
 #else
-	iwl_print_last_event_logs(priv, capacity, num_wraps,
-				next_entry, size, mode);
+	pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
+					next_entry, size, mode,
+					pos, buf, bufsz);
 #endif
+	return pos;
 }
 
 /**
@@ -2456,6 +2623,10 @@ static int iwl_setup_mac(struct iwl_priv *priv)
 		hw->flags |= IEEE80211_HW_SUPPORTS_PS |
 			     IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
 
+	if (priv->cfg->sku & IWL_SKU_N)
+		hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
+			     IEEE80211_HW_SUPPORTS_STATIC_SMPS;
+
 	hw->sta_data_size = sizeof(struct iwl_station_priv);
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_STATION) |
@@ -3126,6 +3297,10 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
 	priv->statistics_periodic.data = (unsigned long)priv;
 	priv->statistics_periodic.function = iwl_bg_statistics_periodic;
 
+	init_timer(&priv->ucode_trace);
+	priv->ucode_trace.data = (unsigned long)priv;
+	priv->ucode_trace.function = iwl_bg_ucode_trace;
+
 	if (!priv->cfg->use_isr_legacy)
 		tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
 			iwl_irq_tasklet, (unsigned long)priv);
@@ -3144,6 +3319,7 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv)
 	cancel_delayed_work(&priv->alive_start);
 	cancel_work_sync(&priv->beacon_update);
 	del_timer_sync(&priv->statistics_periodic);
+	del_timer_sync(&priv->ucode_trace);
 }
 
 static void iwl_init_hw_rates(struct iwl_priv *priv,
@@ -3188,6 +3364,7 @@ static int iwl_init_drv(struct iwl_priv *priv)
 	priv->band = IEEE80211_BAND_2GHZ;
 
 	priv->iw_mode = NL80211_IFTYPE_STATION;
+	priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
 
 	/* Choose which receivers/antennas to use */
 	if (priv->cfg->ops->hcmd->set_rxon_chain)

drivers/net/wireless/iwlwifi/iwl-calib.c

@@ -414,7 +414,6 @@ static int iwl_sens_auto_corr_ofdm(struct iwl_priv *priv,
 /* Prepare a SENSITIVITY_CMD, send to uCode if values have changed */
 static int iwl_sensitivity_write(struct iwl_priv *priv)
 {
-	int ret = 0;
 	struct iwl_sensitivity_cmd cmd ;
 	struct iwl_sensitivity_data *data = NULL;
 	struct iwl_host_cmd cmd_out = {
@@ -477,11 +476,7 @@ static int iwl_sensitivity_write(struct iwl_priv *priv)
 	memcpy(&(priv->sensitivity_tbl[0]), &(cmd.table[0]),
 	       sizeof(u16)*HD_TABLE_SIZE);
 
-	ret = iwl_send_cmd(priv, &cmd_out);
-	if (ret)
-		IWL_ERR(priv, "SENSITIVITY_CMD failed\n");
-
-	return ret;
+	return iwl_send_cmd(priv, &cmd_out);
 }
 
 void iwl_init_sensitivity(struct iwl_priv *priv)

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

@@ -2510,7 +2510,7 @@ struct iwl_card_state_notif {
 
 #define HW_CARD_DISABLED   0x01
 #define SW_CARD_DISABLED   0x02
-#define RF_CARD_DISABLED   0x04
+#define CT_CARD_DISABLED   0x04
 #define RXON_CARD_DISABLED 0x10
 
 struct iwl_ct_kill_config {

drivers/net/wireless/iwlwifi/iwl-core.c

@@ -450,8 +450,6 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
 	if (priv->cfg->ht_greenfield_support)
 		ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
 	ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
-	ht_info->cap |= (IEEE80211_HT_CAP_SM_PS &
-			     (priv->cfg->sm_ps_mode << 2));
 	max_bit_rate = MAX_BIT_RATE_20_MHZ;
 	if (priv->hw_params.ht40_channel & BIT(band)) {
 		ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
@@ -636,7 +634,7 @@ EXPORT_SYMBOL(iwlcore_rts_tx_cmd_flag);
 
 static bool is_single_rx_stream(struct iwl_priv *priv)
 {
-	return !priv->current_ht_config.is_ht ||
+	return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC ||
 	       priv->current_ht_config.single_chain_sufficient;
 }
 
@@ -1003,28 +1001,18 @@ static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
  */
 static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
 {
-	int idle_cnt = active_cnt;
-	bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
-
-	/* # Rx chains when idling and maybe trying to save power */
-	switch (priv->cfg->sm_ps_mode) {
-	case WLAN_HT_CAP_SM_PS_STATIC:
-		idle_cnt = (is_cam) ? active_cnt : IWL_NUM_IDLE_CHAINS_SINGLE;
-		break;
-	case WLAN_HT_CAP_SM_PS_DYNAMIC:
-		idle_cnt = (is_cam) ? IWL_NUM_IDLE_CHAINS_DUAL :
-			IWL_NUM_IDLE_CHAINS_SINGLE;
-		break;
-	case WLAN_HT_CAP_SM_PS_DISABLED:
-		break;
-	case WLAN_HT_CAP_SM_PS_INVALID:
+	/* # Rx chains when idling, depending on SMPS mode */
+	switch (priv->current_ht_config.smps) {
+	case IEEE80211_SMPS_STATIC:
+	case IEEE80211_SMPS_DYNAMIC:
+		return IWL_NUM_IDLE_CHAINS_SINGLE;
+	case IEEE80211_SMPS_OFF:
+		return active_cnt;
 	default:
-		IWL_ERR(priv, "invalid sm_ps mode %u\n",
-			priv->cfg->sm_ps_mode);
-		WARN_ON(1);
-		break;
+		WARN(1, "invalid SMPS mode %d",
+		     priv->current_ht_config.smps);
+		return active_cnt;
 	}
-	return idle_cnt;
 }
 
 /* up to 4 chains */
@@ -1363,7 +1351,9 @@ void iwl_irq_handle_error(struct iwl_priv *priv)
 	clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
 
 	priv->cfg->ops->lib->dump_nic_error_log(priv);
-	priv->cfg->ops->lib->dump_nic_event_log(priv, false);
+	if (priv->cfg->ops->lib->dump_csr)
+		priv->cfg->ops->lib->dump_csr(priv);
+	priv->cfg->ops->lib->dump_nic_event_log(priv, false, NULL, false);
 #ifdef CONFIG_IWLWIFI_DEBUG
 	if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS)
 		iwl_print_rx_config_cmd(priv);
@@ -2684,6 +2674,21 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
 		IWL_DEBUG_MAC80211(priv, "leave - scanning\n");
 	}
 
+	if (changed & (IEEE80211_CONF_CHANGE_SMPS |
+		       IEEE80211_CONF_CHANGE_CHANNEL)) {
+		/* mac80211 uses static for non-HT which is what we want */
+		priv->current_ht_config.smps = conf->smps_mode;
+
+		/*
+		 * Recalculate chain counts.
+		 *
+		 * If monitor mode is enabled then mac80211 will
+		 * set up the SM PS mode to OFF if an HT channel is
+		 * configured.
+		 */
+		if (priv->cfg->ops->hcmd->set_rxon_chain)
+			priv->cfg->ops->hcmd->set_rxon_chain(priv);
+	}
 
 	/* during scanning mac80211 will delay channel setting until
 	 * scan finish with changed = 0
@@ -2780,10 +2785,6 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
 		iwl_set_tx_power(priv, conf->power_level, false);
 	}
 
-	/* call to ensure that 4965 rx_chain is set properly in monitor mode */
-	if (priv->cfg->ops->hcmd->set_rxon_chain)
-		priv->cfg->ops->hcmd->set_rxon_chain(priv);
-
 	if (!iwl_is_ready(priv)) {
 		IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
 		goto out;
@@ -3191,6 +3192,77 @@ void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
 EXPORT_SYMBOL(iwl_update_stats);
 #endif
 
+const static char *get_csr_string(int cmd)
+{
+	switch (cmd) {
+		IWL_CMD(CSR_HW_IF_CONFIG_REG);
+		IWL_CMD(CSR_INT_COALESCING);
+		IWL_CMD(CSR_INT);
+		IWL_CMD(CSR_INT_MASK);
+		IWL_CMD(CSR_FH_INT_STATUS);
+		IWL_CMD(CSR_GPIO_IN);
+		IWL_CMD(CSR_RESET);
+		IWL_CMD(CSR_GP_CNTRL);
+		IWL_CMD(CSR_HW_REV);
+		IWL_CMD(CSR_EEPROM_REG);
+		IWL_CMD(CSR_EEPROM_GP);
+		IWL_CMD(CSR_OTP_GP_REG);
+		IWL_CMD(CSR_GIO_REG);
+		IWL_CMD(CSR_GP_UCODE_REG);
+		IWL_CMD(CSR_GP_DRIVER_REG);
+		IWL_CMD(CSR_UCODE_DRV_GP1);
+		IWL_CMD(CSR_UCODE_DRV_GP2);
+		IWL_CMD(CSR_LED_REG);
+		IWL_CMD(CSR_DRAM_INT_TBL_REG);
+		IWL_CMD(CSR_GIO_CHICKEN_BITS);
+		IWL_CMD(CSR_ANA_PLL_CFG);
+		IWL_CMD(CSR_HW_REV_WA_REG);
+		IWL_CMD(CSR_DBG_HPET_MEM_REG);
+	default:
+		return "UNKNOWN";
+
+	}
+}
+
+void iwl_dump_csr(struct iwl_priv *priv)
+{
+	int i;
+	u32 csr_tbl[] = {
+		CSR_HW_IF_CONFIG_REG,
+		CSR_INT_COALESCING,
+		CSR_INT,
+		CSR_INT_MASK,
+		CSR_FH_INT_STATUS,
+		CSR_GPIO_IN,
+		CSR_RESET,
+		CSR_GP_CNTRL,
+		CSR_HW_REV,
+		CSR_EEPROM_REG,
+		CSR_EEPROM_GP,
+		CSR_OTP_GP_REG,
+		CSR_GIO_REG,
+		CSR_GP_UCODE_REG,
+		CSR_GP_DRIVER_REG,
+		CSR_UCODE_DRV_GP1,
+		CSR_UCODE_DRV_GP2,
+		CSR_LED_REG,
+		CSR_DRAM_INT_TBL_REG,
+		CSR_GIO_CHICKEN_BITS,
+		CSR_ANA_PLL_CFG,
+		CSR_HW_REV_WA_REG,
+		CSR_DBG_HPET_MEM_REG
+	};
+	IWL_ERR(priv, "CSR values:\n");
+	IWL_ERR(priv, "(2nd byte of CSR_INT_COALESCING is "
+		"CSR_INT_PERIODIC_REG)\n");
+	for (i = 0; i <  ARRAY_SIZE(csr_tbl); i++) {
+		IWL_ERR(priv, "  %25s: 0X%08x\n",
+			get_csr_string(csr_tbl[i]),
+			iwl_read32(priv, csr_tbl[i]));
+	}
+}
+EXPORT_SYMBOL(iwl_dump_csr);
+
 #ifdef CONFIG_PM
 
 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state)

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

@@ -169,8 +169,10 @@ struct iwl_lib_ops {
 	int (*is_valid_rtc_data_addr)(u32 addr);
 	/* 1st ucode load */
 	int (*load_ucode)(struct iwl_priv *priv);
-	void (*dump_nic_event_log)(struct iwl_priv *priv, bool full_log);
+	int (*dump_nic_event_log)(struct iwl_priv *priv,
+				  bool full_log, char **buf, bool display);
 	void (*dump_nic_error_log)(struct iwl_priv *priv);
+	void (*dump_csr)(struct iwl_priv *priv);
 	int (*set_channel_switch)(struct iwl_priv *priv, u16 channel);
 	/* power management */
 	struct iwl_apm_ops apm_ops;
@@ -230,7 +232,6 @@ struct iwl_mod_params {
  * @chain_noise_num_beacons: number of beacons used to compute chain noise
  * @adv_thermal_throttle: support advance thermal throttle
  * @support_ct_kill_exit: support ct kill exit condition
- * @sm_ps_mode: spatial multiplexing power save mode
  * @support_wimax_coexist: support wimax/wifi co-exist
  *
  * We enable the driver to be backward compatible wrt API version. The
@@ -287,7 +288,6 @@ struct iwl_cfg {
 	const bool supports_idle;
 	bool adv_thermal_throttle;
 	bool support_ct_kill_exit;
-	u8 sm_ps_mode;
 	const bool support_wimax_coexist;
 };
 
@@ -581,7 +581,9 @@ int iwl_pci_resume(struct pci_dev *pdev);
 *  Error Handling Debugging
 ******************************************************/
 void iwl_dump_nic_error_log(struct iwl_priv *priv);
-void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log);
+int iwl_dump_nic_event_log(struct iwl_priv *priv,
+			   bool full_log, char **buf, bool display);
+void iwl_dump_csr(struct iwl_priv *priv);
 #ifdef CONFIG_IWLWIFI_DEBUG
 void iwl_print_rx_config_cmd(struct iwl_priv *priv);
 #else

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

@@ -109,6 +109,8 @@ struct iwl_debugfs {
 		struct dentry *file_power_save_status;
 		struct dentry *file_clear_ucode_statistics;
 		struct dentry *file_clear_traffic_statistics;
+		struct dentry *file_csr;
+		struct dentry *file_ucode_tracing;
 	} dbgfs_debug_files;
 	u32 sram_offset;
 	u32 sram_len;

drivers/net/wireless/iwlwifi/iwl-debugfs.c

@@ -420,6 +420,23 @@ static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 	return ret;
 }
 
+static ssize_t iwl_dbgfs_log_event_read(struct file *file,
+					 char __user *user_buf,
+					 size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = file->private_data;
+	char *buf;
+	int pos = 0;
+	ssize_t ret = -ENOMEM;
+
+	pos = priv->cfg->ops->lib->dump_nic_event_log(priv, true, &buf, true);
+	if (pos && buf) {
+		ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+		kfree(buf);
+	}
+	return ret;
+}
+
 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 					const char __user *user_buf,
 					size_t count, loff_t *ppos)
@@ -436,7 +453,8 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 	if (sscanf(buf, "%d", &event_log_flag) != 1)
 		return -EFAULT;
 	if (event_log_flag == 1)
-		priv->cfg->ops->lib->dump_nic_event_log(priv, true);
+		priv->cfg->ops->lib->dump_nic_event_log(priv, true,
+							NULL, false);
 
 	return count;
 }
@@ -859,7 +877,7 @@ static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 }
 
 DEBUGFS_READ_WRITE_FILE_OPS(sram);
-DEBUGFS_WRITE_FILE_OPS(log_event);
+DEBUGFS_READ_WRITE_FILE_OPS(log_event);
 DEBUGFS_READ_FILE_OPS(nvm);
 DEBUGFS_READ_FILE_OPS(stations);
 DEBUGFS_READ_FILE_OPS(channels);
@@ -1845,6 +1863,80 @@ static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
 	return count;
 }
 
+static ssize_t iwl_dbgfs_csr_write(struct file *file,
+					 const char __user *user_buf,
+					 size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = file->private_data;
+	char buf[8];
+	int buf_size;
+	int csr;
+
+	memset(buf, 0, sizeof(buf));
+	buf_size = min(count, sizeof(buf) -  1);
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+	if (sscanf(buf, "%d", &csr) != 1)
+		return -EFAULT;
+
+	if (priv->cfg->ops->lib->dump_csr)
+		priv->cfg->ops->lib->dump_csr(priv);
+
+	return count;
+}
+
+static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos) {
+
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	int pos = 0;
+	char buf[128];
+	const size_t bufsz = sizeof(buf);
+	ssize_t ret;
+
+	pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
+			priv->event_log.ucode_trace ? "On" : "Off");
+	pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
+			priv->event_log.non_wraps_count);
+	pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
+			priv->event_log.wraps_once_count);
+	pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
+			priv->event_log.wraps_more_count);
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	return ret;
+}
+
+static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
+					 const char __user *user_buf,
+					 size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = file->private_data;
+	char buf[8];
+	int buf_size;
+	int trace;
+
+	memset(buf, 0, sizeof(buf));
+	buf_size = min(count, sizeof(buf) -  1);
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+	if (sscanf(buf, "%d", &trace) != 1)
+		return -EFAULT;
+
+	if (trace) {
+		priv->event_log.ucode_trace = true;
+		/* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
+		mod_timer(&priv->ucode_trace,
+			jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
+	} else {
+		priv->event_log.ucode_trace = false;
+		del_timer_sync(&priv->ucode_trace);
+	}
+
+	return count;
+}
+
 DEBUGFS_READ_FILE_OPS(rx_statistics);
 DEBUGFS_READ_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@@ -1859,6 +1951,8 @@ DEBUGFS_READ_FILE_OPS(tx_power);
 DEBUGFS_READ_FILE_OPS(power_save_status);
 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
+DEBUGFS_WRITE_FILE_OPS(csr);
+DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
 
 /*
  * Create the debugfs files and directories
@@ -1889,7 +1983,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_DIR(debug, dbgfs->dir_drv);
 	DEBUGFS_ADD_FILE(nvm, data, S_IRUSR);
 	DEBUGFS_ADD_FILE(sram, data, S_IWUSR | S_IRUSR);
-	DEBUGFS_ADD_FILE(log_event, data, S_IWUSR);
+	DEBUGFS_ADD_FILE(log_event, data, S_IWUSR | S_IRUSR);
 	DEBUGFS_ADD_FILE(stations, data, S_IRUSR);
 	DEBUGFS_ADD_FILE(channels, data, S_IRUSR);
 	DEBUGFS_ADD_FILE(status, data, S_IRUSR);
@@ -1909,12 +2003,14 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_FILE(power_save_status, debug, S_IRUSR);
 	DEBUGFS_ADD_FILE(clear_ucode_statistics, debug, S_IWUSR);
 	DEBUGFS_ADD_FILE(clear_traffic_statistics, debug, S_IWUSR);
+	DEBUGFS_ADD_FILE(csr, debug, S_IWUSR);
 	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
 		DEBUGFS_ADD_FILE(ucode_rx_stats, debug, S_IRUSR);
 		DEBUGFS_ADD_FILE(ucode_tx_stats, debug, S_IRUSR);
 		DEBUGFS_ADD_FILE(ucode_general_stats, debug, S_IRUSR);
 		DEBUGFS_ADD_FILE(sensitivity, debug, S_IRUSR);
 		DEBUGFS_ADD_FILE(chain_noise, debug, S_IRUSR);
+		DEBUGFS_ADD_FILE(ucode_tracing, debug, S_IWUSR | S_IRUSR);
 	}
 	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
@@ -1966,6 +2062,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 			file_clear_ucode_statistics);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
 			file_clear_traffic_statistics);
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_csr);
 	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
 		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
 			file_ucode_rx_stats);
@@ -1977,6 +2074,8 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 			file_sensitivity);
 		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
 			file_chain_noise);
+		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
+			file_ucode_tracing);
 	}
 	DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);

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

@@ -512,6 +512,7 @@ struct iwl_ht_config {
 	bool is_ht;
 	bool is_40mhz;
 	bool single_chain_sufficient;
+	enum ieee80211_smps_mode smps; /* current smps mode */
 	/* BSS related data */
 	u8 extension_chan_offset;
 	u8 ht_protection;
@@ -984,6 +985,32 @@ struct iwl_switch_rxon {
 	__le16 channel;
 };
 
+/*
+ * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
+ * to perform continuous uCode event logging operation if enabled
+ */
+#define UCODE_TRACE_PERIOD (100)
+
+/*
+ * iwl_event_log: current uCode event log position
+ *
+ * @ucode_trace: enable/disable ucode continuous trace timer
+ * @num_wraps: how many times the event buffer wraps
+ * @next_entry:  the entry just before the next one that uCode would fill
+ * @non_wraps_count: counter for no wrap detected when dump ucode events
+ * @wraps_once_count: counter for wrap once detected when dump ucode events
+ * @wraps_more_count: counter for wrap more than once detected
+ *		      when dump ucode events
+ */
+struct iwl_event_log {
+	bool ucode_trace;
+	u32 num_wraps;
+	u32 next_entry;
+	int non_wraps_count;
+	int wraps_once_count;
+	int wraps_more_count;
+};
+
 struct iwl_priv {
 
 	/* ieee device used by generic ieee processing code */
@@ -1261,6 +1288,7 @@ struct iwl_priv {
 	u32 disable_tx_power_cal;
 	struct work_struct run_time_calib_work;
 	struct timer_list statistics_periodic;
+	struct timer_list ucode_trace;
 	bool hw_ready;
 	/*For 3945*/
 #define IWL_DEFAULT_TX_POWER 0x0F
@@ -1268,6 +1296,8 @@ struct iwl_priv {
 	struct iwl3945_notif_statistics statistics_39;
 
 	u32 sta_supp_rates;
+
+	struct iwl_event_log event_log;
 }; /*iwl_priv */
 
 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)

drivers/net/wireless/iwlwifi/iwl-devtrace.c

@@ -11,4 +11,6 @@ EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_iowrite32);
 EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_rx);
 EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_ucode_event);
 EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_ucode_error);
+EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_ucode_cont_event);
+EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_ucode_wrap_event);
 #endif

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

@@ -64,6 +64,50 @@ TRACE_EVENT(iwlwifi_dev_iowrite32,
 	TP_printk("[%p] write io[%#x] = %#x)", __entry->priv, __entry->offs, __entry->val)
 );
 
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM iwlwifi_ucode
+
+TRACE_EVENT(iwlwifi_dev_ucode_cont_event,
+	TP_PROTO(struct iwl_priv *priv, u32 time, u32 data, u32 ev),
+	TP_ARGS(priv, time, data, ev),
+	TP_STRUCT__entry(
+		PRIV_ENTRY
+
+		__field(u32, time)
+		__field(u32, data)
+		__field(u32, ev)
+	),
+	TP_fast_assign(
+		PRIV_ASSIGN;
+		__entry->time = time;
+		__entry->data = data;
+		__entry->ev = ev;
+	),
+	TP_printk("[%p] EVT_LOGT:%010u:0x%08x:%04u",
+		  __entry->priv, __entry->time, __entry->data, __entry->ev)
+);
+
+TRACE_EVENT(iwlwifi_dev_ucode_wrap_event,
+	TP_PROTO(struct iwl_priv *priv, u32 wraps, u32 n_entry, u32 p_entry),
+	TP_ARGS(priv, wraps, n_entry, p_entry),
+	TP_STRUCT__entry(
+		PRIV_ENTRY
+
+		__field(u32, wraps)
+		__field(u32, n_entry)
+		__field(u32, p_entry)
+	),
+	TP_fast_assign(
+		PRIV_ASSIGN;
+		__entry->wraps = wraps;
+		__entry->n_entry = n_entry;
+		__entry->p_entry = p_entry;
+	),
+	TP_printk("[%p] wraps=#%02d n=0x%X p=0x%X",
+		  __entry->priv, __entry->wraps, __entry->n_entry,
+		  __entry->p_entry)
+);
+
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM iwlwifi
 

drivers/net/wireless/iwlwifi/iwl3945-base.c

@@ -1559,8 +1559,9 @@ void iwl3945_dump_nic_error_log(struct iwl_priv *priv)
  * iwl3945_print_event_log - Dump error event log to syslog
  *
  */
-static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
-				u32 num_events, u32 mode)
+static int iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
+				  u32 num_events, u32 mode,
+				  int pos, char **buf, size_t bufsz)
 {
 	u32 i;
 	u32 base;       /* SRAM byte address of event log header */
@@ -1570,7 +1571,7 @@ static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
 	unsigned long reg_flags;
 
 	if (num_events == 0)
-		return;
+		return pos;
 
 	base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
 
@@ -1596,26 +1597,43 @@ static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
 		time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
 		if (mode == 0) {
 			/* data, ev */
-			IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
-			trace_iwlwifi_dev_ucode_event(priv, 0, time, ev);
+			if (bufsz) {
+				pos += scnprintf(*buf + pos, bufsz - pos,
+						"0x%08x:%04u\n",
+						time, ev);
+			} else {
+				IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
+				trace_iwlwifi_dev_ucode_event(priv, 0,
+							      time, ev);
+			}
 		} else {
 			data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
-			IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev);
-			trace_iwlwifi_dev_ucode_event(priv, time, data, ev);
+			if (bufsz) {
+				pos += scnprintf(*buf + pos, bufsz - pos,
+						"%010u:0x%08x:%04u\n",
+						 time, data, ev);
+			} else {
+				IWL_ERR(priv, "%010u\t0x%08x\t%04u\n",
+					time, data, ev);
+				trace_iwlwifi_dev_ucode_event(priv, time,
+							      data, ev);
+			}
 		}
 	}
 
 	/* Allow device to power down */
 	iwl_release_nic_access(priv);
 	spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
+	return pos;
 }
 
 /**
  * iwl3945_print_last_event_logs - Dump the newest # of event log to syslog
  */
-static void iwl3945_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
+static int iwl3945_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
 				      u32 num_wraps, u32 next_entry,
-				      u32 size, u32 mode)
+				      u32 size, u32 mode,
+				      int pos, char **buf, size_t bufsz)
 {
 	/*
 	 * display the newest DEFAULT_LOG_ENTRIES entries
@@ -1623,21 +1641,28 @@ static void iwl3945_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
 	 */
 	if (num_wraps) {
 		if (next_entry < size) {
-			iwl3945_print_event_log(priv,
-					capacity - (size - next_entry),
-					size - next_entry, mode);
-			iwl3945_print_event_log(priv, 0,
-				    next_entry, mode);
+			pos = iwl3945_print_event_log(priv,
+					     capacity - (size - next_entry),
+					     size - next_entry, mode,
+					     pos, buf, bufsz);
+			pos = iwl3945_print_event_log(priv, 0,
+						      next_entry, mode,
+						      pos, buf, bufsz);
 		} else
-			iwl3945_print_event_log(priv, next_entry - size,
-				    size, mode);
+			pos = iwl3945_print_event_log(priv, next_entry - size,
+						      size, mode,
+						      pos, buf, bufsz);
 	} else {
 		if (next_entry < size)
-			iwl3945_print_event_log(priv, 0, next_entry, mode);
+			pos = iwl3945_print_event_log(priv, 0,
+						      next_entry, mode,
+						      pos, buf, bufsz);
 		else
-			iwl3945_print_event_log(priv, next_entry - size,
-					    size, mode);
+			pos = iwl3945_print_event_log(priv, next_entry - size,
+						      size, mode,
+						      pos, buf, bufsz);
 	}
+	return pos;
 }
 
 /* For sanity check only.  Actual size is determined by uCode, typ. 512 */
@@ -1645,7 +1670,8 @@ static void iwl3945_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
 
 #define DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES (20)
 
-void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
+int iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
+			    char **buf, bool display)
 {
 	u32 base;       /* SRAM byte address of event log header */
 	u32 capacity;   /* event log capacity in # entries */
@@ -1653,11 +1679,13 @@ void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
 	u32 num_wraps;  /* # times uCode wrapped to top of log */
 	u32 next_entry; /* index of next entry to be written by uCode */
 	u32 size;       /* # entries that we'll print */
+	int pos = 0;
+	size_t bufsz = 0;
 
 	base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
 	if (!iwl3945_hw_valid_rtc_data_addr(base)) {
 		IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
-		return;
+		return pos;
 	}
 
 	/* event log header */
@@ -1683,7 +1711,7 @@ void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
 	/* bail out if nothing in log */
 	if (size == 0) {
 		IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
-		return;
+		return pos;
 	}
 
 #ifdef CONFIG_IWLWIFI_DEBUG
@@ -1699,25 +1727,38 @@ void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
 		  size);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
+	if (display) {
+		if (full_log)
+			bufsz = capacity * 48;
+		else
+			bufsz = size * 48;
+		*buf = kmalloc(bufsz, GFP_KERNEL);
+		if (!*buf)
+			return pos;
+	}
 	if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) {
 		/* if uCode has wrapped back to top of log,
 		 * start at the oldest entry,
 		 * i.e the next one that uCode would fill.
 		 */
 		if (num_wraps)
-			iwl3945_print_event_log(priv, next_entry,
-				    capacity - next_entry, mode);
+			pos = iwl3945_print_event_log(priv, next_entry,
+						capacity - next_entry, mode,
+						pos, buf, bufsz);
 
 		/* (then/else) start at top of log */
-		iwl3945_print_event_log(priv, 0, next_entry, mode);
+		pos = iwl3945_print_event_log(priv, 0, next_entry, mode,
+					      pos, buf, bufsz);
 	} else
-		iwl3945_print_last_event_logs(priv, capacity, num_wraps,
-					next_entry, size, mode);
+		pos = iwl3945_print_last_event_logs(priv, capacity, num_wraps,
+						    next_entry, size, mode,
+						    pos, buf, bufsz);
 #else
-	iwl3945_print_last_event_logs(priv, capacity, num_wraps,
-				next_entry, size, mode);
+	pos = iwl3945_print_last_event_logs(priv, capacity, num_wraps,
+					    next_entry, size, mode,
+					    pos, buf, bufsz);
 #endif
-
+	return pos;
 }
 
 static void iwl3945_irq_tasklet(struct iwl_priv *priv)

drivers/net/wireless/iwmc3200wifi/rx.c

@@ -868,36 +868,35 @@ static int iwm_mlme_mgt_frame(struct iwm_priv *iwm, u8 *buf,
 	struct iwm_umac_notif_mgt_frame *mgt_frame =
 			(struct iwm_umac_notif_mgt_frame *)buf;
 	struct ieee80211_mgmt *mgt = (struct ieee80211_mgmt *)mgt_frame->frame;
-	u8 *ie;
 
 	IWM_HEXDUMP(iwm, DBG, MLME, "MGT: ", mgt_frame->frame,
 		    le16_to_cpu(mgt_frame->len));
 
 	if (ieee80211_is_assoc_req(mgt->frame_control)) {
-		ie = mgt->u.assoc_req.variable;;
-		iwm->req_ie_len =
-				le16_to_cpu(mgt_frame->len) - (ie - (u8 *)mgt);
+		iwm->req_ie_len = le16_to_cpu(mgt_frame->len)
+				  - offsetof(struct ieee80211_mgmt,
+					     u.assoc_req.variable);
 		kfree(iwm->req_ie);
 		iwm->req_ie = kmemdup(mgt->u.assoc_req.variable,
 				      iwm->req_ie_len, GFP_KERNEL);
 	} else if (ieee80211_is_reassoc_req(mgt->frame_control)) {
-		ie = mgt->u.reassoc_req.variable;;
-		iwm->req_ie_len =
-				le16_to_cpu(mgt_frame->len) - (ie - (u8 *)mgt);
+		iwm->req_ie_len = le16_to_cpu(mgt_frame->len)
+				  - offsetof(struct ieee80211_mgmt,
+					     u.reassoc_req.variable);
 		kfree(iwm->req_ie);
 		iwm->req_ie = kmemdup(mgt->u.reassoc_req.variable,
 				      iwm->req_ie_len, GFP_KERNEL);
 	} else if (ieee80211_is_assoc_resp(mgt->frame_control)) {
-		ie = mgt->u.assoc_resp.variable;;
-		iwm->resp_ie_len =
-				le16_to_cpu(mgt_frame->len) - (ie - (u8 *)mgt);
+		iwm->resp_ie_len = le16_to_cpu(mgt_frame->len)
+				   - offsetof(struct ieee80211_mgmt,
+					      u.assoc_resp.variable);
 		kfree(iwm->resp_ie);
 		iwm->resp_ie = kmemdup(mgt->u.assoc_resp.variable,
 				       iwm->resp_ie_len, GFP_KERNEL);
 	} else if (ieee80211_is_reassoc_resp(mgt->frame_control)) {
-		ie = mgt->u.reassoc_resp.variable;;
-		iwm->resp_ie_len =
-				le16_to_cpu(mgt_frame->len) - (ie - (u8 *)mgt);
+		iwm->resp_ie_len = le16_to_cpu(mgt_frame->len)
+				   - offsetof(struct ieee80211_mgmt,
+					      u.reassoc_resp.variable);
 		kfree(iwm->resp_ie);
 		iwm->resp_ie = kmemdup(mgt->u.reassoc_resp.variable,
 				       iwm->resp_ie_len, GFP_KERNEL);
@@ -1534,6 +1533,33 @@ static void classify8023(struct sk_buff *skb)
 	}
 }
 
+static void iwm_rx_process_amsdu(struct iwm_priv *iwm, struct sk_buff *skb)
+{
+	struct wireless_dev *wdev = iwm_to_wdev(iwm);
+	struct net_device *ndev = iwm_to_ndev(iwm);
+	struct sk_buff_head list;
+	struct sk_buff *frame;
+
+	IWM_HEXDUMP(iwm, DBG, RX, "A-MSDU: ", skb->data, skb->len);
+
+	__skb_queue_head_init(&list);
+	ieee80211_amsdu_to_8023s(skb, &list, ndev->dev_addr, wdev->iftype, 0);
+
+	while ((frame = __skb_dequeue(&list))) {
+		ndev->stats.rx_packets++;
+		ndev->stats.rx_bytes += frame->len;
+
+		frame->protocol = eth_type_trans(frame, ndev);
+		frame->ip_summed = CHECKSUM_NONE;
+		memset(frame->cb, 0, sizeof(frame->cb));
+
+		if (netif_rx_ni(frame) == NET_RX_DROP) {
+			IWM_ERR(iwm, "Packet dropped\n");
+			ndev->stats.rx_dropped++;
+		}
+	}
+}
+
 static void iwm_rx_process_packet(struct iwm_priv *iwm,
 				  struct iwm_rx_packet *packet,
 				  struct iwm_rx_ticket_node *ticket_node)
@@ -1548,25 +1574,34 @@ static void iwm_rx_process_packet(struct iwm_priv *iwm,
 	switch (le16_to_cpu(ticket_node->ticket->action)) {
 	case IWM_RX_TICKET_RELEASE:
 		IWM_DBG_RX(iwm, DBG, "RELEASE packet\n");
-		classify8023(skb);
+
 		iwm_rx_adjust_packet(iwm, packet, ticket_node);
+		skb->dev = iwm_to_ndev(iwm);
+		classify8023(skb);
+
+		if (le16_to_cpu(ticket_node->ticket->flags) &
+		    IWM_RX_TICKET_AMSDU_MSK) {
+			iwm_rx_process_amsdu(iwm, skb);
+			break;
+		}
+
 		ret = ieee80211_data_to_8023(skb, ndev->dev_addr, wdev->iftype);
 		if (ret < 0) {
 			IWM_DBG_RX(iwm, DBG, "Couldn't convert 802.11 header - "
 				   "%d\n", ret);
+			kfree_skb(packet->skb);
 			break;
 		}
 
 		IWM_HEXDUMP(iwm, DBG, RX, "802.3: ", skb->data, skb->len);
 
-		skb->dev = iwm_to_ndev(iwm);
+		ndev->stats.rx_packets++;
+		ndev->stats.rx_bytes += skb->len;
+
 		skb->protocol = eth_type_trans(skb, ndev);
 		skb->ip_summed = CHECKSUM_NONE;
 		memset(skb->cb, 0, sizeof(skb->cb));
 
-		ndev->stats.rx_packets++;
-		ndev->stats.rx_bytes += skb->len;
-
 		if (netif_rx_ni(skb) == NET_RX_DROP) {
 			IWM_ERR(iwm, "Packet dropped\n");
 			ndev->stats.rx_dropped++;

drivers/net/wireless/libertas/Kconfig

@@ -37,3 +37,9 @@ config LIBERTAS_DEBUG
 	depends on LIBERTAS
 	---help---
 	  Debugging support.
+
+config LIBERTAS_MESH
+	bool "Enable mesh support"
+	depends on LIBERTAS
+	help
+	  This enables Libertas' MESH support, used by e.g. the OLPC people.

drivers/net/wireless/libertas/Makefile

@@ -5,11 +5,11 @@ libertas-y += cmdresp.o
 libertas-y += debugfs.o
 libertas-y += ethtool.o
 libertas-y += main.o
-libertas-y += mesh.o
 libertas-y += rx.o
 libertas-y += scan.o
 libertas-y += tx.o
 libertas-y += wext.o
+libertas-$(CONFIG_LIBERTAS_MESH) += mesh.o
 
 usb8xxx-objs += if_usb.o
 libertas_cs-objs += if_cs.o

drivers/net/wireless/libertas/assoc.c

@@ -390,10 +390,8 @@ int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
 	cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
 	cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
 	ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
-	if (!ret && cmd_action == CMD_ACT_GET) {
-		priv->ratebitmap = le16_to_cpu(cmd.bitmap);
+	if (!ret && cmd_action == CMD_ACT_GET)
 		priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
-	}
 
 	lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 	return ret;
@@ -807,8 +805,7 @@ static int lbs_try_associate(struct lbs_private *priv,
 	}
 
 	/* Use short preamble only when both the BSS and firmware support it */
-	if ((priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) &&
-	    (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
+	if (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 		preamble = RADIO_PREAMBLE_SHORT;
 
 	ret = lbs_set_radio(priv, preamble, 1);
@@ -939,8 +936,7 @@ static int lbs_adhoc_join(struct lbs_private *priv,
 	}
 
 	/* Use short preamble only when both the BSS and firmware support it */
-	if ((priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) &&
-	    (bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
+	if (bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
 		lbs_deb_join("AdhocJoin: Short preamble\n");
 		preamble = RADIO_PREAMBLE_SHORT;
 	}
@@ -1049,7 +1045,7 @@ static int lbs_adhoc_start(struct lbs_private *priv,
 	struct assoc_request *assoc_req)
 {
 	struct cmd_ds_802_11_ad_hoc_start cmd;
-	u8 preamble = RADIO_PREAMBLE_LONG;
+	u8 preamble = RADIO_PREAMBLE_SHORT;
 	size_t ratesize = 0;
 	u16 tmpcap = 0;
 	int ret = 0;
@@ -1057,11 +1053,6 @@ static int lbs_adhoc_start(struct lbs_private *priv,
 
 	lbs_deb_enter(LBS_DEB_ASSOC);
 
-	if (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
-		lbs_deb_join("ADHOC_START: Will use short preamble\n");
-		preamble = RADIO_PREAMBLE_SHORT;
-	}
-
 	ret = lbs_set_radio(priv, preamble, 1);
 	if (ret)
 		goto out;

drivers/net/wireless/libertas/cmd.c

@@ -143,19 +143,6 @@ int lbs_update_hw_spec(struct lbs_private *priv)
 	lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
 		    cmd.hwifversion, cmd.version);
 
-	/* Determine mesh_fw_ver from fwrelease and fwcapinfo */
-	/* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
-	/* 5.110.22 have mesh command with 0xa3 command id */
-	/* 10.0.0.p0 FW brings in mesh config command with different id */
-	/* Check FW version MSB and initialize mesh_fw_ver */
-	if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5)
-		priv->mesh_fw_ver = MESH_FW_OLD;
-	else if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
-		(priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK))
-		priv->mesh_fw_ver = MESH_FW_NEW;
-	else
-		priv->mesh_fw_ver = MESH_NONE;
-
 	/* Clamp region code to 8-bit since FW spec indicates that it should
 	 * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
 	 * returns non-zero high 8 bits here.
@@ -855,9 +842,6 @@ int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on)
 	if (priv->fwrelease < 0x09000000) {
 		switch (preamble) {
 		case RADIO_PREAMBLE_SHORT:
-			if (!(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
-				goto out;
-			/* Fall through */
 		case RADIO_PREAMBLE_AUTO:
 		case RADIO_PREAMBLE_LONG:
 			cmd.control = cpu_to_le16(preamble);
@@ -1011,6 +995,8 @@ int lbs_prepare_and_send_command(struct lbs_private *priv,
 		ret = 0;
 		break;
 
+#ifdef CONFIG_LIBERTAS_MESH
+
 	case CMD_BT_ACCESS:
 		ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
 		break;
@@ -1019,6 +1005,8 @@ int lbs_prepare_and_send_command(struct lbs_private *priv,
 		ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
 		break;
 
+#endif
+
 	case CMD_802_11_BEACON_CTRL:
 		ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
 		break;
@@ -1317,7 +1305,7 @@ int lbs_execute_next_command(struct lbs_private *priv)
 		if ((priv->psmode != LBS802_11POWERMODECAM) &&
 		    (priv->psstate == PS_STATE_FULL_POWER) &&
 		    ((priv->connect_status == LBS_CONNECTED) ||
-		    (priv->mesh_connect_status == LBS_CONNECTED))) {
+		    lbs_mesh_connected(priv))) {
 			if (priv->secinfo.WPAenabled ||
 			    priv->secinfo.WPA2enabled) {
 				/* check for valid WPA group keys */

drivers/net/wireless/libertas/cmd.h

@@ -110,18 +110,6 @@ int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val);
 int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val);
 
 
-/* Mesh related */
-
-int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
-		    struct cmd_ds_mesh_access *cmd);
-
-int lbs_mesh_config_send(struct lbs_private *priv,
-			 struct cmd_ds_mesh_config *cmd,
-			 uint16_t action, uint16_t type);
-
-int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan);
-
-
 /* Commands only used in wext.c, assoc. and scan.c */
 
 int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,

drivers/net/wireless/libertas/cmdresp.c

@@ -485,20 +485,8 @@ int lbs_process_event(struct lbs_private *priv, u32 event)
 		break;
 
 	case MACREG_INT_CODE_MESH_AUTO_STARTED:
-		/* Ignore spurious autostart events if autostart is disabled */
-		if (!priv->mesh_autostart_enabled) {
-			lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n");
-			break;
-		}
-		lbs_pr_info("EVENT: MESH_AUTO_STARTED\n");
-		priv->mesh_connect_status = LBS_CONNECTED;
-		if (priv->mesh_open) {
-			netif_carrier_on(priv->mesh_dev);
-			if (!priv->tx_pending_len)
-				netif_wake_queue(priv->mesh_dev);
-		}
-		priv->mode = IW_MODE_ADHOC;
-		schedule_work(&priv->sync_channel);
+		/* Ignore spurious autostart events */
+		lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n");
 		break;
 
 	default:

drivers/net/wireless/libertas/defs.h

@@ -397,13 +397,6 @@ enum KEY_INFO_WPA {
 	KEY_INFO_WPA_ENABLED = 0x04
 };
 
-/** mesh_fw_ver */
-enum _mesh_fw_ver {
-	MESH_NONE = 0, /* MESH is not supported */
-	MESH_FW_OLD,   /* MESH is supported in FW V5 */
-	MESH_FW_NEW,   /* MESH is supported in FW V10 and newer */
-};
-
 /* Default values for fwt commands. */
 #define FWT_DEFAULT_METRIC 0
 #define FWT_DEFAULT_DIR 1

drivers/net/wireless/libertas/dev.h

@@ -39,15 +39,14 @@ struct lbs_private {
 
 	/* Mesh */
 	struct net_device *mesh_dev; /* Virtual device */
+#ifdef CONFIG_LIBERTAS_MESH
 	u32 mesh_connect_status;
 	struct lbs_mesh_stats mstats;
 	int mesh_open;
-	int mesh_fw_ver;
-	int mesh_autostart_enabled;
 	uint16_t mesh_tlv;
 	u8 mesh_ssid[IEEE80211_MAX_SSID_LEN + 1];
 	u8 mesh_ssid_len;
-	struct work_struct sync_channel;
+#endif
 
 	/* Monitor mode */
 	struct net_device *rtap_net_dev;
@@ -176,9 +175,7 @@ struct lbs_private {
 	struct bss_descriptor *networks;
 	struct assoc_request * pending_assoc_req;
 	struct assoc_request * in_progress_assoc_req;
-	u16 capability;
 	uint16_t enablehwauto;
-	uint16_t ratebitmap;
 
 	/* ADHOC */
 	u16 beacon_period;

drivers/net/wireless/libertas/ethtool.c

@@ -114,9 +114,11 @@ const struct ethtool_ops lbs_ethtool_ops = {
 	.get_drvinfo = lbs_ethtool_get_drvinfo,
 	.get_eeprom =  lbs_ethtool_get_eeprom,
 	.get_eeprom_len = lbs_ethtool_get_eeprom_len,
+#ifdef CONFIG_LIBERTAS_MESH
 	.get_sset_count = lbs_mesh_ethtool_get_sset_count,
 	.get_ethtool_stats = lbs_mesh_ethtool_get_stats,
 	.get_strings = lbs_mesh_ethtool_get_strings,
+#endif
 	.get_wol = lbs_ethtool_get_wol,
 	.set_wol = lbs_ethtool_set_wol,
 };

drivers/net/wireless/libertas/main.c

@@ -123,7 +123,7 @@ static ssize_t lbs_rtap_set(struct device *dev,
 		if (priv->monitormode == monitor_mode)
 			return strlen(buf);
 		if (!priv->monitormode) {
-			if (priv->infra_open || priv->mesh_open)
+			if (priv->infra_open || lbs_mesh_open(priv))
 				return -EBUSY;
 			if (priv->mode == IW_MODE_INFRA)
 				lbs_cmd_80211_deauthenticate(priv,
@@ -622,7 +622,7 @@ static int lbs_thread(void *data)
 				if (priv->connect_status == LBS_CONNECTED)
 					netif_wake_queue(priv->dev);
 				if (priv->mesh_dev &&
-				    priv->mesh_connect_status == LBS_CONNECTED)
+				    lbs_mesh_connected(priv))
 					netif_wake_queue(priv->mesh_dev);
 			}
 		}
@@ -809,18 +809,6 @@ int lbs_exit_auto_deep_sleep(struct lbs_private *priv)
 	return 0;
 }
 
-static void lbs_sync_channel_worker(struct work_struct *work)
-{
-	struct lbs_private *priv = container_of(work, struct lbs_private,
-		sync_channel);
-
-	lbs_deb_enter(LBS_DEB_MAIN);
-	if (lbs_update_channel(priv))
-		lbs_pr_info("Channel synchronization failed.");
-	lbs_deb_leave(LBS_DEB_MAIN);
-}
-
-
 static int lbs_init_adapter(struct lbs_private *priv)
 {
 	size_t bufsize;
@@ -848,14 +836,12 @@ static int lbs_init_adapter(struct lbs_private *priv)
 	memset(priv->current_addr, 0xff, ETH_ALEN);
 
 	priv->connect_status = LBS_DISCONNECTED;
-	priv->mesh_connect_status = LBS_DISCONNECTED;
 	priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
 	priv->mode = IW_MODE_INFRA;
 	priv->channel = DEFAULT_AD_HOC_CHANNEL;
 	priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
 	priv->radio_on = 1;
 	priv->enablehwauto = 1;
-	priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
 	priv->psmode = LBS802_11POWERMODECAM;
 	priv->psstate = PS_STATE_FULL_POWER;
 	priv->is_deep_sleep = 0;
@@ -998,11 +984,6 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
 	INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker);
 	INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
 	INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker);
-	INIT_WORK(&priv->sync_channel, lbs_sync_channel_worker);
-
-	priv->mesh_open = 0;
-	sprintf(priv->mesh_ssid, "mesh");
-	priv->mesh_ssid_len = 4;
 
 	priv->wol_criteria = 0xffffffff;
 	priv->wol_gpio = 0xff;
@@ -1076,6 +1057,17 @@ void lbs_remove_card(struct lbs_private *priv)
 EXPORT_SYMBOL_GPL(lbs_remove_card);
 
 
+static int lbs_rtap_supported(struct lbs_private *priv)
+{
+	if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5)
+		return 1;
+
+	/* newer firmware use a capability mask */
+	return ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
+		(priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK));
+}
+
+
 int lbs_start_card(struct lbs_private *priv)
 {
 	struct net_device *dev = priv->dev;
@@ -1095,12 +1087,14 @@ int lbs_start_card(struct lbs_private *priv)
 
 	lbs_update_channel(priv);
 
+	lbs_init_mesh(priv);
+
 	/*
 	 * While rtap isn't related to mesh, only mesh-enabled
 	 * firmware implements the rtap functionality via
 	 * CMD_802_11_MONITOR_MODE.
 	 */
-	if (lbs_init_mesh(priv)) {
+	if (lbs_rtap_supported(priv)) {
 		if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
 			lbs_pr_err("cannot register lbs_rtap attribute\n");
 	}
@@ -1134,7 +1128,9 @@ void lbs_stop_card(struct lbs_private *priv)
 	netif_carrier_off(dev);
 
 	lbs_debugfs_remove_one(priv);
-	if (lbs_deinit_mesh(priv))
+	lbs_deinit_mesh(priv);
+
+	if (lbs_rtap_supported(priv))
 		device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
 
 	/* Delete the timeout of the currently processing command */

drivers/net/wireless/libertas/mesh.c

@@ -1,4 +1,3 @@
-#include <linux/moduleparam.h>
 #include <linux/delay.h>
 #include <linux/etherdevice.h>
 #include <linux/netdevice.h>
@@ -196,7 +195,14 @@ int lbs_init_mesh(struct lbs_private *priv)
 
 	lbs_deb_enter(LBS_DEB_MESH);
 
-	if (priv->mesh_fw_ver == MESH_FW_OLD) {
+	priv->mesh_connect_status = LBS_DISCONNECTED;
+
+	/* Determine mesh_fw_ver from fwrelease and fwcapinfo */
+	/* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
+	/* 5.110.22 have mesh command with 0xa3 command id */
+	/* 10.0.0.p0 FW brings in mesh config command with different id */
+	/* Check FW version MSB and initialize mesh_fw_ver */
+	if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) {
 		/* Enable mesh, if supported, and work out which TLV it uses.
 		   0x100 + 291 is an unofficial value used in 5.110.20.pXX
 		   0x100 + 37 is the official value used in 5.110.21.pXX
@@ -218,7 +224,9 @@ int lbs_init_mesh(struct lbs_private *priv)
 					    priv->channel))
 				priv->mesh_tlv = 0;
 		}
-	} else if (priv->mesh_fw_ver == MESH_FW_NEW) {
+	} else
+	if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
+		(priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)) {
 		/* 10.0.0.pXX new firmwares should succeed with TLV
 		 * 0x100+37; Do not invoke command with old TLV.
 		 */
@@ -227,7 +235,12 @@ int lbs_init_mesh(struct lbs_private *priv)
 				    priv->channel))
 			priv->mesh_tlv = 0;
 	}
+
+
 	if (priv->mesh_tlv) {
+		sprintf(priv->mesh_ssid, "mesh");
+		priv->mesh_ssid_len = 4;
+
 		lbs_add_mesh(priv);
 
 		if (device_create_file(&dev->dev, &dev_attr_lbs_mesh))
@@ -416,10 +429,10 @@ struct net_device *lbs_mesh_set_dev(struct lbs_private *priv,
 	struct net_device *dev, struct rxpd *rxpd)
 {
 	if (priv->mesh_dev) {
-		if (priv->mesh_fw_ver == MESH_FW_OLD) {
+		if (priv->mesh_tlv == TLV_TYPE_OLD_MESH_ID) {
 			if (rxpd->rx_control & RxPD_MESH_FRAME)
 				dev = priv->mesh_dev;
-		} else if (priv->mesh_fw_ver == MESH_FW_NEW) {
+		} else if (priv->mesh_tlv == TLV_TYPE_MESH_ID) {
 			if (rxpd->u.bss.bss_num == MESH_IFACE_ID)
 				dev = priv->mesh_dev;
 		}
@@ -432,9 +445,9 @@ void lbs_mesh_set_txpd(struct lbs_private *priv,
 	struct net_device *dev, struct txpd *txpd)
 {
 	if (dev == priv->mesh_dev) {
-		if (priv->mesh_fw_ver == MESH_FW_OLD)
+		if (priv->mesh_tlv == TLV_TYPE_OLD_MESH_ID)
 			txpd->tx_control |= cpu_to_le32(TxPD_MESH_FRAME);
-		else if (priv->mesh_fw_ver == MESH_FW_NEW)
+		else if (priv->mesh_tlv == TLV_TYPE_MESH_ID)
 			txpd->u.bss.bss_num = MESH_IFACE_ID;
 	}
 }
@@ -538,7 +551,7 @@ static int __lbs_mesh_config_send(struct lbs_private *priv,
 	 * Command id is 0xac for v10 FW along with mesh interface
 	 * id in bits 14-13-12.
 	 */
-	if (priv->mesh_fw_ver == MESH_FW_NEW)
+	if (priv->mesh_tlv == TLV_TYPE_MESH_ID)
 		command = CMD_MESH_CONFIG |
 			  (MESH_IFACE_ID << MESH_IFACE_BIT_OFFSET);
 

drivers/net/wireless/libertas/mesh.h

@@ -9,6 +9,8 @@
 #include <net/lib80211.h>
 
 
+#ifdef CONFIG_LIBERTAS_MESH
+
 /* Mesh statistics */
 struct lbs_mesh_stats {
 	u32	fwd_bcast_cnt;		/* Fwd: Broadcast counter */
@@ -46,11 +48,20 @@ void lbs_mesh_set_txpd(struct lbs_private *priv,
 /* Command handling */
 
 struct cmd_ds_command;
+struct cmd_ds_mesh_access;
+struct cmd_ds_mesh_config;
 
 int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
 	u16 cmd_action, void *pdata_buf);
 int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
 	u16 cmd_action, void *pdata_buf);
+int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
+		    struct cmd_ds_mesh_access *cmd);
+int lbs_mesh_config_send(struct lbs_private *priv,
+			 struct cmd_ds_mesh_config *cmd,
+			 uint16_t action, uint16_t type);
+int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan);
+
 
 
 /* Persistent configuration */
@@ -75,4 +86,25 @@ void lbs_mesh_ethtool_get_strings(struct net_device *dev,
 	uint32_t stringset, uint8_t *s);
 
 
+/* Accessors */
+
+#define lbs_mesh_open(priv) (priv->mesh_open)
+#define lbs_mesh_connected(priv) (priv->mesh_connect_status == LBS_CONNECTED)
+
+#else
+
+#define lbs_init_mesh(priv)
+#define lbs_deinit_mesh(priv)
+#define lbs_add_mesh(priv)
+#define lbs_remove_mesh(priv)
+#define lbs_mesh_set_dev(priv, dev, rxpd) (dev)
+#define lbs_mesh_set_txpd(priv, dev, txpd)
+#define lbs_mesh_config(priv, enable, chan)
+#define lbs_mesh_open(priv) (0)
+#define lbs_mesh_connected(priv) (0)
+
+#endif
+
+
+
 #endif

drivers/net/wireless/libertas/scan.c

@@ -640,7 +640,7 @@ out:
 		if (!priv->tx_pending_len)
 			netif_wake_queue(priv->dev);
 	}
-	if (priv->mesh_dev && (priv->mesh_connect_status == LBS_CONNECTED)) {
+	if (priv->mesh_dev && lbs_mesh_connected(priv)) {
 		netif_carrier_on(priv->mesh_dev);
 		if (!priv->tx_pending_len)
 			netif_wake_queue(priv->mesh_dev);

drivers/net/wireless/libertas/tx.c

@@ -198,7 +198,7 @@ void lbs_send_tx_feedback(struct lbs_private *priv, u32 try_count)
 	if (priv->connect_status == LBS_CONNECTED)
 		netif_wake_queue(priv->dev);
 
-	if (priv->mesh_dev && (priv->mesh_connect_status == LBS_CONNECTED))
+	if (priv->mesh_dev && lbs_mesh_connected(priv))
 		netif_wake_queue(priv->mesh_dev);
 }
 EXPORT_SYMBOL_GPL(lbs_send_tx_feedback);

drivers/net/wireless/libertas/wext.c

@@ -192,7 +192,7 @@ static void copy_active_data_rates(struct lbs_private *priv, u8 *rates)
 	lbs_deb_enter(LBS_DEB_WEXT);
 
 	if ((priv->connect_status != LBS_CONNECTED) &&
-		(priv->mesh_connect_status != LBS_CONNECTED))
+		!lbs_mesh_connected(priv))
 		memcpy(rates, lbs_bg_rates, MAX_RATES);
 	else
 		memcpy(rates, priv->curbssparams.rates, MAX_RATES);
@@ -298,6 +298,7 @@ static int lbs_get_nick(struct net_device *dev, struct iw_request_info *info,
 	return 0;
 }
 
+#ifdef CONFIG_LIBERTAS_MESH
 static int mesh_get_nick(struct net_device *dev, struct iw_request_info *info,
 			 struct iw_point *dwrq, char *extra)
 {
@@ -307,7 +308,7 @@ static int mesh_get_nick(struct net_device *dev, struct iw_request_info *info,
 
 	/* Use nickname to indicate that mesh is on */
 
-	if (priv->mesh_connect_status == LBS_CONNECTED) {
+	if (lbs_mesh_connected(priv)) {
 		strncpy(extra, "Mesh", 12);
 		extra[12] = '\0';
 		dwrq->length = strlen(extra);
@@ -321,6 +322,7 @@ static int mesh_get_nick(struct net_device *dev, struct iw_request_info *info,
 	lbs_deb_leave(LBS_DEB_WEXT);
 	return 0;
 }
+#endif
 
 static int lbs_set_rts(struct net_device *dev, struct iw_request_info *info,
 			struct iw_param *vwrq, char *extra)
@@ -422,6 +424,7 @@ static int lbs_get_mode(struct net_device *dev,
 	return 0;
 }
 
+#ifdef CONFIG_LIBERTAS_MESH
 static int mesh_wlan_get_mode(struct net_device *dev,
 		              struct iw_request_info *info, u32 * uwrq,
 			      char *extra)
@@ -433,6 +436,7 @@ static int mesh_wlan_get_mode(struct net_device *dev,
 	lbs_deb_leave(LBS_DEB_WEXT);
 	return 0;
 }
+#endif
 
 static int lbs_get_txpow(struct net_device *dev,
 			  struct iw_request_info *info,
@@ -863,7 +867,7 @@ static struct iw_statistics *lbs_get_wireless_stats(struct net_device *dev)
 
 	/* If we're not associated, all quality values are meaningless */
 	if ((priv->connect_status != LBS_CONNECTED) &&
-	    (priv->mesh_connect_status != LBS_CONNECTED))
+	    !lbs_mesh_connected(priv))
 		goto out;
 
 	/* Quality by RSSI */
@@ -1010,6 +1014,7 @@ out:
 	return ret;
 }
 
+#ifdef CONFIG_LIBERTAS_MESH
 static int lbs_mesh_set_freq(struct net_device *dev,
 			     struct iw_request_info *info,
 			     struct iw_freq *fwrq, char *extra)
@@ -1061,6 +1066,7 @@ out:
 	lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
 	return ret;
 }
+#endif
 
 static int lbs_set_rate(struct net_device *dev, struct iw_request_info *info,
 		  struct iw_param *vwrq, char *extra)
@@ -2108,6 +2114,7 @@ out:
 	return ret;
 }
 
+#ifdef CONFIG_LIBERTAS_MESH
 static int lbs_mesh_get_essid(struct net_device *dev,
 			      struct iw_request_info *info,
 			      struct iw_point *dwrq, char *extra)
@@ -2161,6 +2168,7 @@ static int lbs_mesh_set_essid(struct net_device *dev,
 	lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
 	return ret;
 }
+#endif
 
 /**
  *  @brief Connect to the AP or Ad-hoc Network with specific bssid
@@ -2267,7 +2275,13 @@ static const iw_handler lbs_handler[] = {
 	(iw_handler) lbs_get_encodeext,/* SIOCGIWENCODEEXT */
 	(iw_handler) NULL,		/* SIOCSIWPMKSA */
 };
+struct iw_handler_def lbs_handler_def = {
+	.num_standard	= ARRAY_SIZE(lbs_handler),
+	.standard	= (iw_handler *) lbs_handler,
+	.get_wireless_stats = lbs_get_wireless_stats,
+};
 
+#ifdef CONFIG_LIBERTAS_MESH
 static const iw_handler mesh_wlan_handler[] = {
 	(iw_handler) NULL,	/* SIOCSIWCOMMIT */
 	(iw_handler) lbs_get_name,	/* SIOCGIWNAME */
@@ -2325,14 +2339,10 @@ static const iw_handler mesh_wlan_handler[] = {
 	(iw_handler) lbs_get_encodeext,/* SIOCGIWENCODEEXT */
 	(iw_handler) NULL,		/* SIOCSIWPMKSA */
 };
-struct iw_handler_def lbs_handler_def = {
-	.num_standard	= ARRAY_SIZE(lbs_handler),
-	.standard	= (iw_handler *) lbs_handler,
-	.get_wireless_stats = lbs_get_wireless_stats,
-};
 
 struct iw_handler_def mesh_handler_def = {
 	.num_standard	= ARRAY_SIZE(mesh_wlan_handler),
 	.standard	= (iw_handler *) mesh_wlan_handler,
 	.get_wireless_stats = lbs_get_wireless_stats,
 };
+#endif

drivers/net/wireless/mac80211_hwsim.c

@@ -436,6 +436,38 @@ static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
 }
 
 
+struct mac80211_hwsim_addr_match_data {
+	bool ret;
+	const u8 *addr;
+};
+
+static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
+				     struct ieee80211_vif *vif)
+{
+	struct mac80211_hwsim_addr_match_data *md = data;
+	if (memcmp(mac, md->addr, ETH_ALEN) == 0)
+		md->ret = true;
+}
+
+
+static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
+				      const u8 *addr)
+{
+	struct mac80211_hwsim_addr_match_data md;
+
+	if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
+		return true;
+
+	md.ret = false;
+	md.addr = addr;
+	ieee80211_iterate_active_interfaces_atomic(data->hw,
+						   mac80211_hwsim_addr_iter,
+						   &md);
+
+	return md.ret;
+}
+
+
 static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
 				    struct sk_buff *skb)
 {
@@ -488,8 +520,7 @@ static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
 		if (nskb == NULL)
 			continue;
 
-		if (memcmp(hdr->addr1, data2->hw->wiphy->perm_addr,
-			   ETH_ALEN) == 0)
+		if (mac80211_hwsim_addr_match(data2, hdr->addr1))
 			ack = true;
 		memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
 		ieee80211_rx_irqsafe(data2->hw, nskb);
@@ -618,12 +649,26 @@ static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct mac80211_hwsim_data *data = hw->priv;
 	struct ieee80211_conf *conf = &hw->conf;
-
-	printk(KERN_DEBUG "%s:%s (freq=%d idle=%d ps=%d)\n",
+	static const char *chantypes[4] = {
+		[NL80211_CHAN_NO_HT] = "noht",
+		[NL80211_CHAN_HT20] = "ht20",
+		[NL80211_CHAN_HT40MINUS] = "ht40-",
+		[NL80211_CHAN_HT40PLUS] = "ht40+",
+	};
+	static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
+		[IEEE80211_SMPS_AUTOMATIC] = "auto",
+		[IEEE80211_SMPS_OFF] = "off",
+		[IEEE80211_SMPS_STATIC] = "static",
+		[IEEE80211_SMPS_DYNAMIC] = "dynamic",
+	};
+
+	printk(KERN_DEBUG "%s:%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
 	       wiphy_name(hw->wiphy), __func__,
 	       conf->channel->center_freq,
+	       chantypes[conf->channel_type],
 	       !!(conf->flags & IEEE80211_CONF_IDLE),
-	       !!(conf->flags & IEEE80211_CONF_PS));
+	       !!(conf->flags & IEEE80211_CONF_PS),
+	       smps_modes[conf->smps_mode]);
 
 	data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
 
@@ -827,6 +872,31 @@ static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
 }
 #endif
 
+static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
+				       struct ieee80211_vif *vif,
+				       enum ieee80211_ampdu_mlme_action action,
+				       struct ieee80211_sta *sta, u16 tid, u16 *ssn)
+{
+	switch (action) {
+	case IEEE80211_AMPDU_TX_START:
+		ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+		break;
+	case IEEE80211_AMPDU_TX_STOP:
+		ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+		break;
+	case IEEE80211_AMPDU_TX_OPERATIONAL:
+		break;
+	case IEEE80211_AMPDU_RX_START:
+	case IEEE80211_AMPDU_RX_STOP:
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+
 static const struct ieee80211_ops mac80211_hwsim_ops =
 {
 	.tx = mac80211_hwsim_tx,
@@ -841,6 +911,7 @@ static const struct ieee80211_ops mac80211_hwsim_ops =
 	.set_tim = mac80211_hwsim_set_tim,
 	.conf_tx = mac80211_hwsim_conf_tx,
 	CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
+	.ampdu_action = mac80211_hwsim_ampdu_action,
 };
 
 
@@ -1082,7 +1153,9 @@ static int __init init_mac80211_hwsim(void)
 			BIT(NL80211_IFTYPE_MESH_POINT);
 
 		hw->flags = IEEE80211_HW_MFP_CAPABLE |
-			    IEEE80211_HW_SIGNAL_DBM;
+			    IEEE80211_HW_SIGNAL_DBM |
+			    IEEE80211_HW_SUPPORTS_STATIC_SMPS |
+			    IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
 
 		/* ask mac80211 to reserve space for magic */
 		hw->vif_data_size = sizeof(struct hwsim_vif_priv);

drivers/net/wireless/rndis_wlan.c

@@ -2594,23 +2594,9 @@ end:
 /*
  * driver/device initialization
  */
-static int bcm4320a_early_init(struct usbnet *usbdev)
-{
-	/* bcm4320a doesn't handle configuration parameters well. Try
-	 * set any and you get partially zeroed mac and broken device.
-	 */
-
-	return 0;
-}
-
-static int bcm4320b_early_init(struct usbnet *usbdev)
+static void rndis_copy_module_params(struct usbnet *usbdev)
 {
 	struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
-	char buf[8];
-
-	/* Early initialization settings, setting these won't have effect
-	 * if called after generic_rndis_bind().
-	 */
 
 	priv->param_country[0] = modparam_country[0];
 	priv->param_country[1] = modparam_country[1];
@@ -2652,6 +2638,32 @@ static int bcm4320b_early_init(struct usbnet *usbdev)
 		priv->param_workaround_interval = 500;
 	else
 		priv->param_workaround_interval = modparam_workaround_interval;
+}
+
+static int bcm4320a_early_init(struct usbnet *usbdev)
+{
+	/* copy module parameters for bcm4320a so that iwconfig reports txpower
+	 * and workaround parameter is copied to private structure correctly.
+	 */
+	rndis_copy_module_params(usbdev);
+
+	/* bcm4320a doesn't handle configuration parameters well. Try
+	 * set any and you get partially zeroed mac and broken device.
+	 */
+
+	return 0;
+}
+
+static int bcm4320b_early_init(struct usbnet *usbdev)
+{
+	struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
+	char buf[8];
+
+	rndis_copy_module_params(usbdev);
+
+	/* Early initialization settings, setting these won't have effect
+	 * if called after generic_rndis_bind().
+	 */
 
 	rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
 	rndis_set_config_parameter_str(usbdev, "FrameBursting",

drivers/net/wireless/rt2x00/rt2800pci.c

@@ -835,7 +835,6 @@ static void rt2800pci_fill_rxdone(struct queue_entry *entry,
 				  struct rxdone_entry_desc *rxdesc)
 {
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
-	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
 	struct queue_entry_priv_pci *entry_priv = entry->priv_data;
 	__le32 *rxd = entry_priv->desc;
 	__le32 *rxwi = (__le32 *)entry->skb->data;
@@ -883,10 +882,8 @@ static void rt2800pci_fill_rxdone(struct queue_entry *entry,
 	if (rt2x00_get_field32(rxd3, RXD_W3_MY_BSS))
 		rxdesc->dev_flags |= RXDONE_MY_BSS;
 
-	if (rt2x00_get_field32(rxd3, RXD_W3_L2PAD)) {
+	if (rt2x00_get_field32(rxd3, RXD_W3_L2PAD))
 		rxdesc->dev_flags |= RXDONE_L2PAD;
-		skbdesc->flags |= SKBDESC_L2_PADDED;
-	}
 
 	if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI))
 		rxdesc->flags |= RX_FLAG_SHORT_GI;
@@ -927,7 +924,6 @@ static void rt2800pci_fill_rxdone(struct queue_entry *entry,
 	 * Remove TXWI descriptor from start of buffer.
 	 */
 	skb_pull(entry->skb, RXWI_DESC_SIZE);
-	skb_trim(entry->skb, rxdesc->size);
 }
 
 /*

drivers/net/wireless/rt2x00/rt2800usb.c

@@ -295,9 +295,7 @@ static int rt2800usb_enable_radio(struct rt2x00_dev *rt2x00dev)
 
 	rt2800_register_read(rt2x00dev, USB_DMA_CFG, &reg);
 	rt2x00_set_field32(&reg, USB_DMA_CFG_PHY_CLEAR, 0);
-	/* Don't use bulk in aggregation when working with USB 1.1 */
-	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_AGG_EN,
-			   (rt2x00dev->rx->usb_maxpacket == 512));
+	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_AGG_EN, 0);
 	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_AGG_TIMEOUT, 128);
 	/*
 	 * Total room for RX frames in kilobytes, PBF might still exceed
@@ -573,41 +571,57 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
 {
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
 	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
-	__le32 *rxd = (__le32 *)entry->skb->data;
+	__le32 *rxi = (__le32 *)entry->skb->data;
 	__le32 *rxwi;
-	u32 rxd0;
+	__le32 *rxd;
+	u32 rxi0;
 	u32 rxwi0;
 	u32 rxwi1;
 	u32 rxwi2;
 	u32 rxwi3;
+	u32 rxd0;
+	int rx_pkt_len;
+
+	/*
+	 * RX frame format is :
+	 * | RXINFO | RXWI | header | L2 pad | payload | pad | RXD | USB pad |
+	 *          |<------------ rx_pkt_len -------------->|
+	 */
+	rt2x00_desc_read(rxi, 0, &rxi0);
+	rx_pkt_len = rt2x00_get_field32(rxi0, RXINFO_W0_USB_DMA_RX_PKT_LEN);
+
+	rxwi = (__le32 *)(entry->skb->data + RXINFO_DESC_SIZE);
+
+	/*
+	 * FIXME : we need to check for rx_pkt_len validity
+	 */
+	rxd = (__le32 *)(entry->skb->data + RXINFO_DESC_SIZE + rx_pkt_len);
 
 	/*
 	 * Copy descriptor to the skbdesc->desc buffer, making it safe from
 	 * moving of frame data in rt2x00usb.
 	 */
-	memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
-	rxd = (__le32 *)skbdesc->desc;
-	rxwi = &rxd[RXINFO_DESC_SIZE / sizeof(__le32)];
+	memcpy(skbdesc->desc, rxi, skbdesc->desc_len);
 
 	/*
 	 * It is now safe to read the descriptor on all architectures.
 	 */
-	rt2x00_desc_read(rxd, 0, &rxd0);
 	rt2x00_desc_read(rxwi, 0, &rxwi0);
 	rt2x00_desc_read(rxwi, 1, &rxwi1);
 	rt2x00_desc_read(rxwi, 2, &rxwi2);
 	rt2x00_desc_read(rxwi, 3, &rxwi3);
+	rt2x00_desc_read(rxd, 0, &rxd0);
 
-	if (rt2x00_get_field32(rxd0, RXINFO_W0_CRC_ERROR))
+	if (rt2x00_get_field32(rxd0, RXD_W0_CRC_ERROR))
 		rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
 
 	if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) {
 		rxdesc->cipher = rt2x00_get_field32(rxwi0, RXWI_W0_UDF);
 		rxdesc->cipher_status =
-		    rt2x00_get_field32(rxd0, RXINFO_W0_CIPHER_ERROR);
+		    rt2x00_get_field32(rxd0, RXD_W0_CIPHER_ERROR);
 	}
 
-	if (rt2x00_get_field32(rxd0, RXINFO_W0_DECRYPTED)) {
+	if (rt2x00_get_field32(rxd0, RXD_W0_DECRYPTED)) {
 		/*
 		 * Hardware has stripped IV/EIV data from 802.11 frame during
 		 * decryption. Unfortunately the descriptor doesn't contain
@@ -622,13 +636,11 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
 			rxdesc->flags |= RX_FLAG_MMIC_ERROR;
 	}
 
-	if (rt2x00_get_field32(rxd0, RXINFO_W0_MY_BSS))
+	if (rt2x00_get_field32(rxd0, RXD_W0_MY_BSS))
 		rxdesc->dev_flags |= RXDONE_MY_BSS;
 
-	if (rt2x00_get_field32(rxd0, RXINFO_W0_L2PAD)) {
+	if (rt2x00_get_field32(rxd0, RXD_W0_L2PAD))
 		rxdesc->dev_flags |= RXDONE_L2PAD;
-		skbdesc->flags |= SKBDESC_L2_PADDED;
-	}
 
 	if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI))
 		rxdesc->flags |= RX_FLAG_SHORT_GI;
@@ -663,7 +675,6 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
 	 * Remove RXWI descriptor from start of buffer.
 	 */
 	skb_pull(entry->skb, skbdesc->desc_len);
-	skb_trim(entry->skb, rxdesc->size);
 }
 
 /*

drivers/net/wireless/rt2x00/rt2800usb.h

@@ -79,6 +79,8 @@
  */
 #define TXINFO_DESC_SIZE		( 1 * sizeof(__le32) )
 #define RXINFO_DESC_SIZE		( 1 * sizeof(__le32) )
+#define RXWI_DESC_SIZE			( 4 * sizeof(__le32) )
+#define RXD_DESC_SIZE			( 1 * sizeof(__le32) )
 
 /*
  * TX Info structure
@@ -100,6 +102,54 @@
 #define TXINFO_W0_USB_DMA_NEXT_VALID	FIELD32(0x40000000)
 #define TXINFO_W0_USB_DMA_TX_BURST	FIELD32(0x80000000)
 
+/*
+ * RX Info structure
+ */
+
+/*
+ * Word 0
+ */
+
+#define RXINFO_W0_USB_DMA_RX_PKT_LEN	FIELD32(0x0000ffff)
+
+/*
+ * RX WI structure
+ */
+
+/*
+ * Word0
+ */
+#define RXWI_W0_WIRELESS_CLI_ID		FIELD32(0x000000ff)
+#define RXWI_W0_KEY_INDEX		FIELD32(0x00000300)
+#define RXWI_W0_BSSID			FIELD32(0x00001c00)
+#define RXWI_W0_UDF			FIELD32(0x0000e000)
+#define RXWI_W0_MPDU_TOTAL_BYTE_COUNT	FIELD32(0x0fff0000)
+#define RXWI_W0_TID			FIELD32(0xf0000000)
+
+/*
+ * Word1
+ */
+#define RXWI_W1_FRAG			FIELD32(0x0000000f)
+#define RXWI_W1_SEQUENCE		FIELD32(0x0000fff0)
+#define RXWI_W1_MCS			FIELD32(0x007f0000)
+#define RXWI_W1_BW			FIELD32(0x00800000)
+#define RXWI_W1_SHORT_GI		FIELD32(0x01000000)
+#define RXWI_W1_STBC			FIELD32(0x06000000)
+#define RXWI_W1_PHYMODE			FIELD32(0xc0000000)
+
+/*
+ * Word2
+ */
+#define RXWI_W2_RSSI0			FIELD32(0x000000ff)
+#define RXWI_W2_RSSI1			FIELD32(0x0000ff00)
+#define RXWI_W2_RSSI2			FIELD32(0x00ff0000)
+
+/*
+ * Word3
+ */
+#define RXWI_W3_SNR0			FIELD32(0x000000ff)
+#define RXWI_W3_SNR1			FIELD32(0x0000ff00)
+
 /*
  * RX descriptor format for RX Ring.
  */
@@ -115,25 +165,25 @@
  * AMSDU: rx with 802.3 header, not 802.11 header.
  */
 
-#define RXINFO_W0_BA			FIELD32(0x00000001)
-#define RXINFO_W0_DATA			FIELD32(0x00000002)
-#define RXINFO_W0_NULLDATA		FIELD32(0x00000004)
-#define RXINFO_W0_FRAG			FIELD32(0x00000008)
-#define RXINFO_W0_UNICAST_TO_ME		FIELD32(0x00000010)
-#define RXINFO_W0_MULTICAST		FIELD32(0x00000020)
-#define RXINFO_W0_BROADCAST		FIELD32(0x00000040)
-#define RXINFO_W0_MY_BSS		FIELD32(0x00000080)
-#define RXINFO_W0_CRC_ERROR		FIELD32(0x00000100)
-#define RXINFO_W0_CIPHER_ERROR		FIELD32(0x00000600)
-#define RXINFO_W0_AMSDU			FIELD32(0x00000800)
-#define RXINFO_W0_HTC			FIELD32(0x00001000)
-#define RXINFO_W0_RSSI			FIELD32(0x00002000)
-#define RXINFO_W0_L2PAD			FIELD32(0x00004000)
-#define RXINFO_W0_AMPDU			FIELD32(0x00008000)
-#define RXINFO_W0_DECRYPTED		FIELD32(0x00010000)
-#define RXINFO_W0_PLCP_RSSI		FIELD32(0x00020000)
-#define RXINFO_W0_CIPHER_ALG		FIELD32(0x00040000)
-#define RXINFO_W0_LAST_AMSDU		FIELD32(0x00080000)
-#define RXINFO_W0_PLCP_SIGNAL		FIELD32(0xfff00000)
+#define RXD_W0_BA			FIELD32(0x00000001)
+#define RXD_W0_DATA			FIELD32(0x00000002)
+#define RXD_W0_NULLDATA			FIELD32(0x00000004)
+#define RXD_W0_FRAG			FIELD32(0x00000008)
+#define RXD_W0_UNICAST_TO_ME		FIELD32(0x00000010)
+#define RXD_W0_MULTICAST		FIELD32(0x00000020)
+#define RXD_W0_BROADCAST		FIELD32(0x00000040)
+#define RXD_W0_MY_BSS			FIELD32(0x00000080)
+#define RXD_W0_CRC_ERROR		FIELD32(0x00000100)
+#define RXD_W0_CIPHER_ERROR		FIELD32(0x00000600)
+#define RXD_W0_AMSDU			FIELD32(0x00000800)
+#define RXD_W0_HTC			FIELD32(0x00001000)
+#define RXD_W0_RSSI			FIELD32(0x00002000)
+#define RXD_W0_L2PAD			FIELD32(0x00004000)
+#define RXD_W0_AMPDU			FIELD32(0x00008000)
+#define RXD_W0_DECRYPTED		FIELD32(0x00010000)
+#define RXD_W0_PLCP_RSSI		FIELD32(0x00020000)
+#define RXD_W0_CIPHER_ALG		FIELD32(0x00040000)
+#define RXD_W0_LAST_AMSDU		FIELD32(0x00080000)
+#define RXD_W0_PLCP_SIGNAL		FIELD32(0xfff00000)
 
 #endif /* RT2800USB_H */

drivers/net/wireless/rt2x00/rt2x00.h

@@ -103,6 +103,12 @@
 #define GET_DURATION(__size, __rate)	(((__size) * 8 * 10) / (__rate))
 #define GET_DURATION_RES(__size, __rate)(((__size) * 8 * 10) % (__rate))
 
+/*
+ * Determine the number of L2 padding bytes required between the header and
+ * the payload.
+ */
+#define L2PAD_SIZE(__hdrlen)	(-(__hdrlen) & 3)
+
 /*
  * Determine the alignment requirement,
  * to make sure the 802.11 payload is padded to a 4-byte boundrary

drivers/net/wireless/rt2x00/rt2x00dev.c

@@ -385,9 +385,6 @@ void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
 	memset(&rxdesc, 0, sizeof(rxdesc));
 	rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc);
 
-	/* Trim buffer to correct size */
-	skb_trim(entry->skb, rxdesc.size);
-
 	/*
 	 * The data behind the ieee80211 header must be
 	 * aligned on a 4 byte boundary.
@@ -404,11 +401,16 @@ void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
 	    (rxdesc.flags & RX_FLAG_IV_STRIPPED))
 		rt2x00crypto_rx_insert_iv(entry->skb, header_length,
 					  &rxdesc);
-	else if (rxdesc.dev_flags & RXDONE_L2PAD)
+	else if (header_length &&
+		 (rxdesc.size > header_length) &&
+		 (rxdesc.dev_flags & RXDONE_L2PAD))
 		rt2x00queue_remove_l2pad(entry->skb, header_length);
 	else
 		rt2x00queue_align_payload(entry->skb, header_length);
 
+	/* Trim buffer to correct size */
+	skb_trim(entry->skb, rxdesc.size);
+
 	/*
 	 * Check if the frame was received using HT. In that case,
 	 * the rate is the MCS index and should be passed to mac80211

drivers/net/wireless/rt2x00/rt2x00pci.c

@@ -41,6 +41,9 @@ int rt2x00pci_regbusy_read(struct rt2x00_dev *rt2x00dev,
 {
 	unsigned int i;
 
+	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
+		return 0;
+
 	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 		rt2x00pci_register_read(rt2x00dev, offset, reg);
 		if (!rt2x00_get_field32(*reg, field))

drivers/net/wireless/rt2x00/rt2x00queue.c

@@ -177,55 +177,45 @@ void rt2x00queue_align_payload(struct sk_buff *skb, unsigned int header_length)
 
 void rt2x00queue_insert_l2pad(struct sk_buff *skb, unsigned int header_length)
 {
-	struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
-	unsigned int frame_length = skb->len;
+	unsigned int payload_length = skb->len - header_length;
 	unsigned int header_align = ALIGN_SIZE(skb, 0);
 	unsigned int payload_align = ALIGN_SIZE(skb, header_length);
-	unsigned int l2pad = 4 - (payload_align - header_align);
+	unsigned int l2pad = payload_length ? L2PAD_SIZE(header_length) : 0;
 
-	if (header_align == payload_align) {
-		/*
-		 * Both header and payload must be moved the same
-		 * amount of bytes to align them properly. This means
-		 * we don't use the L2 padding but just move the entire
-		 * frame.
-		 */
-		rt2x00queue_align_frame(skb);
-	} else if (!payload_align) {
-		/*
-		 * Simple L2 padding, only the header needs to be moved,
-		 * the payload is already properly aligned.
-		 */
-		skb_push(skb, header_align);
-		memmove(skb->data, skb->data + header_align, frame_length);
-		skbdesc->flags |= SKBDESC_L2_PADDED;
-	} else {
-		/*
-		 *
-		 * Complicated L2 padding, both header and payload need
-		 * to be moved. By default we only move to the start
-		 * of the buffer, so our header alignment needs to be
-		 * increased if there is not enough room for the header
-		 * to be moved.
-		 */
-		if (payload_align > header_align)
-			header_align += 4;
+	/*
+	 * Adjust the header alignment if the payload needs to be moved more
+	 * than the header.
+	 */
+	if (payload_align > header_align)
+		header_align += 4;
+
+	/* There is nothing to do if no alignment is needed */
+	if (!header_align)
+		return;
+
+	/* Reserve the amount of space needed in front of the frame */
+	skb_push(skb, header_align);
+
+	/*
+	 * Move the header.
+	 */
+	memmove(skb->data, skb->data + header_align, header_length);
 
-		skb_push(skb, header_align);
-		memmove(skb->data, skb->data + header_align, header_length);
+	/* Move the payload, if present and if required */
+	if (payload_length && payload_align)
 		memmove(skb->data + header_length + l2pad,
 			skb->data + header_length + l2pad + payload_align,
-			frame_length - header_length);
-		skbdesc->flags |= SKBDESC_L2_PADDED;
-	}
+			payload_length);
+
+	/* Trim the skb to the correct size */
+	skb_trim(skb, header_length + l2pad + payload_length);
 }
 
 void rt2x00queue_remove_l2pad(struct sk_buff *skb, unsigned int header_length)
 {
-	struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
-	unsigned int l2pad = 4 - (header_length & 3);
+	unsigned int l2pad = L2PAD_SIZE(header_length);
 
-	if (!l2pad || (skbdesc->flags & SKBDESC_L2_PADDED))
+	if (!l2pad)
 		return;
 
 	memmove(skb->data + l2pad, skb->data, header_length);
@@ -346,7 +336,9 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
 	 * Header and alignment information.
 	 */
 	txdesc->header_length = ieee80211_get_hdrlen_from_skb(entry->skb);
-	txdesc->l2pad = ALIGN_SIZE(entry->skb, txdesc->header_length);
+	if (test_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags) &&
+	    (entry->skb->len > txdesc->header_length))
+		txdesc->l2pad = L2PAD_SIZE(txdesc->header_length);
 
 	/*
 	 * Check whether this frame is to be acked.
@@ -387,10 +379,13 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
 
 	/*
 	 * Beacons and probe responses require the tsf timestamp
-	 * to be inserted into the frame.
+	 * to be inserted into the frame, except for a frame that has been injected
+	 * through a monitor interface. This latter is needed for testing a
+	 * monitor interface.
 	 */
-	if (ieee80211_is_beacon(hdr->frame_control) ||
-	    ieee80211_is_probe_resp(hdr->frame_control))
+	if ((ieee80211_is_beacon(hdr->frame_control) ||
+	    ieee80211_is_probe_resp(hdr->frame_control)) &&
+	    (!(tx_info->flags & IEEE80211_TX_CTL_INJECTED)))
 		__set_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags);
 
 	/*

drivers/net/wireless/rt2x00/rt2x00queue.h

@@ -92,8 +92,6 @@ enum data_queue_qid {
  * @SKBDESC_DMA_MAPPED_TX: &skb_dma field has been mapped for TX
  * @SKBDESC_IV_STRIPPED: Frame contained a IV/EIV provided by
  *	mac80211 but was stripped for processing by the driver.
- * @SKBDESC_L2_PADDED: Payload has been padded for 4-byte alignment,
- *	the padded bytes are located between header and payload.
  * @SKBDESC_NOT_MAC80211: Frame didn't originate from mac80211,
  *	don't try to pass it back.
  */
@@ -101,8 +99,7 @@ enum skb_frame_desc_flags {
 	SKBDESC_DMA_MAPPED_RX = 1 << 0,
 	SKBDESC_DMA_MAPPED_TX = 1 << 1,
 	SKBDESC_IV_STRIPPED = 1 << 2,
-	SKBDESC_L2_PADDED = 1 << 3,
-	SKBDESC_NOT_MAC80211 = 1 << 4,
+	SKBDESC_NOT_MAC80211 = 1 << 3,
 };
 
 /**

drivers/net/wireless/rt2x00/rt73usb.c

@@ -2354,6 +2354,7 @@ static struct usb_device_id rt73usb_device_table[] = {
 	{ USB_DEVICE(0x08dd, 0x0120), USB_DEVICE_DATA(&rt73usb_ops) },
 	/* Buffalo */
 	{ USB_DEVICE(0x0411, 0x00d8), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x0411, 0x00d9), USB_DEVICE_DATA(&rt73usb_ops) },
 	{ USB_DEVICE(0x0411, 0x00f4), USB_DEVICE_DATA(&rt73usb_ops) },
 	{ USB_DEVICE(0x0411, 0x0116), USB_DEVICE_DATA(&rt73usb_ops) },
 	{ USB_DEVICE(0x0411, 0x0119), USB_DEVICE_DATA(&rt73usb_ops) },

drivers/net/wireless/rtl818x/rtl8180_dev.c

@@ -132,7 +132,6 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev)
 
 			rx_status.antenna = (flags2 >> 15) & 1;
 			/* TODO: improve signal/rssi reporting */
-			rx_status.qual = flags2 & 0xFF;
 			rx_status.signal = (flags2 >> 8) & 0x7F;
 			/* XXX: is this correct? */
 			rx_status.rate_idx = (flags >> 20) & 0xF;

drivers/net/wireless/wl12xx/wl1251.h

@@ -247,6 +247,7 @@ struct wl1251_debugfs {
 	struct dentry *rxpipe_tx_xfr_host_int_trig_rx_data;
 
 	struct dentry *tx_queue_len;
+	struct dentry *tx_queue_status;
 
 	struct dentry *retry_count;
 	struct dentry *excessive_retries;

drivers/net/wireless/wl12xx/wl1251_acx.c

@@ -976,3 +976,72 @@ out:
 	kfree(acx);
 	return ret;
 }
+
+int wl1251_acx_ac_cfg(struct wl1251 *wl, u8 ac, u8 cw_min, u16 cw_max,
+		      u8 aifs, u16 txop)
+{
+	struct wl1251_acx_ac_cfg *acx;
+	int ret = 0;
+
+	wl1251_debug(DEBUG_ACX, "acx ac cfg %d cw_ming %d cw_max %d "
+		     "aifs %d txop %d", ac, cw_min, cw_max, aifs, txop);
+
+	acx = kzalloc(sizeof(*acx), GFP_KERNEL);
+
+	if (!acx) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	acx->ac = ac;
+	acx->cw_min = cw_min;
+	acx->cw_max = cw_max;
+	acx->aifsn = aifs;
+	acx->txop_limit = txop;
+
+	ret = wl1251_cmd_configure(wl, ACX_AC_CFG, acx, sizeof(*acx));
+	if (ret < 0) {
+		wl1251_warning("acx ac cfg failed: %d", ret);
+		goto out;
+	}
+
+out:
+	kfree(acx);
+	return ret;
+}
+
+int wl1251_acx_tid_cfg(struct wl1251 *wl, u8 queue,
+		       enum wl1251_acx_channel_type type,
+		       u8 tsid, enum wl1251_acx_ps_scheme ps_scheme,
+		       enum wl1251_acx_ack_policy ack_policy)
+{
+	struct wl1251_acx_tid_cfg *acx;
+	int ret = 0;
+
+	wl1251_debug(DEBUG_ACX, "acx tid cfg %d type %d tsid %d "
+		     "ps_scheme %d ack_policy %d", queue, type, tsid,
+		     ps_scheme, ack_policy);
+
+	acx = kzalloc(sizeof(*acx), GFP_KERNEL);
+
+	if (!acx) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	acx->queue = queue;
+	acx->type = type;
+	acx->tsid = tsid;
+	acx->ps_scheme = ps_scheme;
+	acx->ack_policy = ack_policy;
+
+	ret = wl1251_cmd_configure(wl, ACX_TID_CFG, acx, sizeof(*acx));
+	if (ret < 0) {
+		wl1251_warning("acx tid cfg failed: %d", ret);
+		goto out;
+	}
+
+out:
+	kfree(acx);
+	return ret;
+}

drivers/net/wireless/wl12xx/wl1251_acx.h

@@ -1166,6 +1166,87 @@ struct wl1251_acx_wr_tbtt_and_dtim {
 	u8  padding;
 } __attribute__ ((packed));
 
+struct wl1251_acx_ac_cfg {
+	struct acx_header header;
+
+	/*
+	 * Access Category - The TX queue's access category
+	 * (refer to AccessCategory_enum)
+	 */
+	u8 ac;
+
+	/*
+	 * The contention window minimum size (in slots) for
+	 * the access class.
+	 */
+	u8 cw_min;
+
+	/*
+	 * The contention window maximum size (in slots) for
+	 * the access class.
+	 */
+	u16 cw_max;
+
+	/* The AIF value (in slots) for the access class. */
+	u8 aifsn;
+
+	u8 reserved;
+
+	/* The TX Op Limit (in microseconds) for the access class. */
+	u16 txop_limit;
+} __attribute__ ((packed));
+
+
+enum wl1251_acx_channel_type {
+	CHANNEL_TYPE_DCF	= 0,
+	CHANNEL_TYPE_EDCF	= 1,
+	CHANNEL_TYPE_HCCA	= 2,
+};
+
+enum wl1251_acx_ps_scheme {
+	/* regular ps: simple sending of packets */
+	WL1251_ACX_PS_SCHEME_LEGACY	= 0,
+
+	/* sending a packet triggers a unscheduled apsd downstream */
+	WL1251_ACX_PS_SCHEME_UPSD_TRIGGER	= 1,
+
+	/* a pspoll packet will be sent before every data packet */
+	WL1251_ACX_PS_SCHEME_LEGACY_PSPOLL	= 2,
+
+	/* scheduled apsd mode */
+	WL1251_ACX_PS_SCHEME_SAPSD		= 3,
+};
+
+enum wl1251_acx_ack_policy {
+	WL1251_ACX_ACK_POLICY_LEGACY	= 0,
+	WL1251_ACX_ACK_POLICY_NO_ACK	= 1,
+	WL1251_ACX_ACK_POLICY_BLOCK	= 2,
+};
+
+struct wl1251_acx_tid_cfg {
+	struct acx_header header;
+
+	/* tx queue id number (0-7) */
+	u8 queue;
+
+	/* channel access type for the queue, enum wl1251_acx_channel_type */
+	u8 type;
+
+	/* EDCA: ac index (0-3), HCCA: traffic stream id (8-15) */
+	u8 tsid;
+
+	/* ps scheme of the specified queue, enum wl1251_acx_ps_scheme */
+	u8 ps_scheme;
+
+	/* the tx queue ack policy, enum wl1251_acx_ack_policy */
+	u8 ack_policy;
+
+	u8 padding[3];
+
+	/* not supported */
+	u32 apsdconf[2];
+} __attribute__ ((packed));
+
 /*************************************************************************
 
     Host Interrupt Register (WiLink -> Host)
@@ -1322,5 +1403,11 @@ int wl1251_acx_tsf_info(struct wl1251 *wl, u64 *mactime);
 int wl1251_acx_rate_policies(struct wl1251 *wl);
 int wl1251_acx_mem_cfg(struct wl1251 *wl);
 int wl1251_acx_wr_tbtt_and_dtim(struct wl1251 *wl, u16 tbtt, u8 dtim);
+int wl1251_acx_ac_cfg(struct wl1251 *wl, u8 ac, u8 cw_min, u16 cw_max,
+		      u8 aifs, u16 txop);
+int wl1251_acx_tid_cfg(struct wl1251 *wl, u8 queue,
+		       enum wl1251_acx_channel_type type,
+		       u8 tsid, enum wl1251_acx_ps_scheme ps_scheme,
+		       enum wl1251_acx_ack_policy ack_policy);
 
 #endif /* __WL1251_ACX_H__ */

drivers/net/wireless/wl12xx/wl1251_debugfs.c

@@ -237,6 +237,27 @@ static const struct file_operations tx_queue_len_ops = {
 	.open = wl1251_open_file_generic,
 };
 
+static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf,
+				    size_t count, loff_t *ppos)
+{
+	struct wl1251 *wl = file->private_data;
+	char buf[3], status;
+	int len;
+
+	if (wl->tx_queue_stopped)
+		status = 's';
+	else
+		status = 'r';
+
+	len = scnprintf(buf, sizeof(buf), "%c\n", status);
+	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
+}
+
+static const struct file_operations tx_queue_status_ops = {
+	.read = tx_queue_status_read,
+	.open = wl1251_open_file_generic,
+};
+
 static void wl1251_debugfs_delete_files(struct wl1251 *wl)
 {
 	DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow);
@@ -331,6 +352,7 @@ static void wl1251_debugfs_delete_files(struct wl1251 *wl)
 	DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data);
 
 	DEBUGFS_DEL(tx_queue_len);
+	DEBUGFS_DEL(tx_queue_status);
 	DEBUGFS_DEL(retry_count);
 	DEBUGFS_DEL(excessive_retries);
 }
@@ -431,6 +453,7 @@ static int wl1251_debugfs_add_files(struct wl1251 *wl)
 	DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
 
 	DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir);
+	DEBUGFS_ADD(tx_queue_status, wl->debugfs.rootdir);
 	DEBUGFS_ADD(retry_count, wl->debugfs.rootdir);
 	DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir);
 

drivers/net/wireless/wl12xx/wl1251_init.c

@@ -294,6 +294,11 @@ static int wl1251_hw_init_tx_queue_config(struct wl1251 *wl)
 			goto out;
 	}
 
+	wl1251_acx_ac_cfg(wl, AC_BE, CWMIN_BE, CWMAX_BE, AIFS_DIFS, TXOP_BE);
+	wl1251_acx_ac_cfg(wl, AC_BK, CWMIN_BK, CWMAX_BK, AIFS_DIFS, TXOP_BK);
+	wl1251_acx_ac_cfg(wl, AC_VI, CWMIN_VI, CWMAX_VI, AIFS_DIFS, TXOP_VI);
+	wl1251_acx_ac_cfg(wl, AC_VO, CWMIN_VO, CWMAX_VO, AIFS_DIFS, TXOP_VO);
+
 out:
 	kfree(config);
 	return ret;

drivers/net/wireless/wl12xx/wl1251_init.h

@@ -26,6 +26,53 @@
 
 #include "wl1251.h"
 
+enum {
+	/* best effort/legacy */
+	AC_BE = 0,
+
+	/* background */
+	AC_BK = 1,
+
+	/* video */
+	AC_VI = 2,
+
+	/* voice */
+	AC_VO = 3,
+
+	/* broadcast dummy access category */
+	AC_BCAST = 4,
+
+	NUM_ACCESS_CATEGORIES = 4
+};
+
+/* following are defult values for the IE fields*/
+#define CWMIN_BK  15
+#define CWMIN_BE  15
+#define CWMIN_VI  7
+#define CWMIN_VO  3
+#define CWMAX_BK  1023
+#define CWMAX_BE  63
+#define CWMAX_VI  15
+#define CWMAX_VO  7
+
+/* slot number setting to start transmission at PIFS interval */
+#define AIFS_PIFS 1
+
+/*
+ * slot number setting to start transmission at DIFS interval - normal DCF
+ * access
+ */
+#define AIFS_DIFS 2
+
+#define AIFSN_BK  7
+#define AIFSN_BE  3
+#define AIFSN_VI  AIFS_PIFS
+#define AIFSN_VO  AIFS_PIFS
+#define TXOP_BK   0
+#define TXOP_BE   0
+#define TXOP_VI   3008
+#define TXOP_VO   1504
+
 int wl1251_hw_init_hwenc_config(struct wl1251 *wl);
 int wl1251_hw_init_templates_config(struct wl1251 *wl);
 int wl1251_hw_init_rx_config(struct wl1251 *wl, u32 config, u32 filter);

drivers/net/wireless/wl12xx/wl1251_main.c

@@ -395,6 +395,7 @@ static int wl1251_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	 * the queue here, otherwise the queue will get too long.
 	 */
 	if (skb_queue_len(&wl->tx_queue) >= WL1251_TX_QUEUE_MAX_LENGTH) {
+		wl1251_debug(DEBUG_TX, "op_tx: tx_queue full, stop queues");
 		ieee80211_stop_queues(wl->hw);
 
 		/*
@@ -640,20 +641,25 @@ static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed)
 		 * through the bss_info_changed() hook.
 		 */
 		ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE);
+		if (ret < 0)
+			goto out_sleep;
 	} else if (!(conf->flags & IEEE80211_CONF_PS) &&
 		   wl->psm_requested) {
 		wl1251_debug(DEBUG_PSM, "psm disabled");
 
 		wl->psm_requested = false;
 
-		if (wl->psm)
+		if (wl->psm) {
 			ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE);
+			if (ret < 0)
+				goto out_sleep;
+		}
 	}
 
 	if (conf->power_level != wl->power_level) {
 		ret = wl1251_acx_tx_power(wl, conf->power_level);
 		if (ret < 0)
-			goto out;
+			goto out_sleep;
 
 		wl->power_level = conf->power_level;
 	}
@@ -1273,6 +1279,43 @@ static struct ieee80211_channel wl1251_channels[] = {
 	{ .hw_value = 13, .center_freq = 2472},
 };
 
+static int wl1251_op_conf_tx(struct ieee80211_hw *hw, u16 queue,
+			     const struct ieee80211_tx_queue_params *params)
+{
+	struct wl1251 *wl = hw->priv;
+	int ret;
+
+	mutex_lock(&wl->mutex);
+
+	wl1251_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
+
+	ret = wl1251_ps_elp_wakeup(wl);
+	if (ret < 0)
+		goto out;
+
+	ret = wl1251_acx_ac_cfg(wl, wl1251_tx_get_queue(queue),
+				params->cw_min, params->cw_max,
+				params->aifs, params->txop);
+	if (ret < 0)
+		goto out_sleep;
+
+	ret = wl1251_acx_tid_cfg(wl, wl1251_tx_get_queue(queue),
+				 CHANNEL_TYPE_EDCF,
+				 wl1251_tx_get_queue(queue),
+				 WL1251_ACX_PS_SCHEME_LEGACY,
+				 WL1251_ACX_ACK_POLICY_LEGACY);
+	if (ret < 0)
+		goto out_sleep;
+
+out_sleep:
+	wl1251_ps_elp_sleep(wl);
+
+out:
+	mutex_unlock(&wl->mutex);
+
+	return ret;
+}
+
 /* can't be const, mac80211 writes to this */
 static struct ieee80211_supported_band wl1251_band_2ghz = {
 	.channels = wl1251_channels,
@@ -1293,6 +1336,7 @@ static const struct ieee80211_ops wl1251_ops = {
 	.hw_scan = wl1251_op_hw_scan,
 	.bss_info_changed = wl1251_op_bss_info_changed,
 	.set_rts_threshold = wl1251_op_set_rts_threshold,
+	.conf_tx = wl1251_op_conf_tx,
 };
 
 static int wl1251_register_hw(struct wl1251 *wl)
@@ -1338,6 +1382,8 @@ int wl1251_init_ieee80211(struct wl1251 *wl)
 	wl->hw->wiphy->max_scan_ssids = 1;
 	wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1251_band_2ghz;
 
+	wl->hw->queues = 4;
+
 	ret = wl1251_register_hw(wl);
 	if (ret)
 		goto out;

drivers/net/wireless/wl12xx/wl1251_ps.c

@@ -26,7 +26,8 @@
 #include "wl1251_cmd.h"
 #include "wl1251_io.h"
 
-#define WL1251_WAKEUP_TIMEOUT 2000
+/* in ms */
+#define WL1251_WAKEUP_TIMEOUT 100
 
 void wl1251_elp_work(struct work_struct *work)
 {
@@ -67,7 +68,7 @@ void wl1251_ps_elp_sleep(struct wl1251 *wl)
 
 int wl1251_ps_elp_wakeup(struct wl1251 *wl)
 {
-	unsigned long timeout;
+	unsigned long timeout, start;
 	u32 elp_reg;
 
 	if (!wl->elp)
@@ -75,6 +76,7 @@ int wl1251_ps_elp_wakeup(struct wl1251 *wl)
 
 	wl1251_debug(DEBUG_PSM, "waking up chip from elp");
 
+	start = jiffies;
 	timeout = jiffies + msecs_to_jiffies(WL1251_WAKEUP_TIMEOUT);
 
 	wl1251_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_WAKE_UP);
@@ -95,8 +97,7 @@ int wl1251_ps_elp_wakeup(struct wl1251 *wl)
 	}
 
 	wl1251_debug(DEBUG_PSM, "wakeup time: %u ms",
-		     jiffies_to_msecs(jiffies) -
-		     (jiffies_to_msecs(timeout) - WL1251_WAKEUP_TIMEOUT));
+		     jiffies_to_msecs(jiffies - start));
 
 	wl->elp = false;
 

drivers/net/wireless/wl12xx/wl1251_rx.c

@@ -126,7 +126,7 @@ static void wl1251_rx_body(struct wl1251 *wl,
 	if (wl->rx_current_buffer)
 		rx_packet_ring_addr += wl->data_path->rx_packet_ring_chunk_size;
 
-	skb = dev_alloc_skb(length);
+	skb = __dev_alloc_skb(length, GFP_KERNEL);
 	if (!skb) {
 		wl1251_error("Couldn't allocate RX frame");
 		return;

drivers/net/wireless/wl12xx/wl1251_tx.c

@@ -167,8 +167,7 @@ static int wl1251_tx_fill_hdr(struct wl1251 *wl, struct sk_buff *skb,
 	tx_hdr->expiry_time = cpu_to_le32(1 << 16);
 	tx_hdr->id = id;
 
-	/* FIXME: how to get the correct queue id? */
-	tx_hdr->xmit_queue = 0;
+	tx_hdr->xmit_queue = wl1251_tx_get_queue(skb_get_queue_mapping(skb));
 
 	wl1251_tx_control(tx_hdr, control, fc);
 	wl1251_tx_frag_block_num(tx_hdr);
@@ -220,6 +219,7 @@ static int wl1251_tx_send_packet(struct wl1251 *wl, struct sk_buff *skb,
 			/* align the buffer on a 4-byte boundary */
 			skb_reserve(skb, offset);
 			memmove(skb->data, src, skb->len);
+			tx_hdr = (struct tx_double_buffer_desc *) skb->data;
 		} else {
 			wl1251_info("No handler, fixme!");
 			return -EINVAL;
@@ -237,8 +237,9 @@ static int wl1251_tx_send_packet(struct wl1251 *wl, struct sk_buff *skb,
 
 	wl1251_mem_write(wl, addr, skb->data, len);
 
-	wl1251_debug(DEBUG_TX, "tx id %u skb 0x%p payload %u rate 0x%x",
-		     tx_hdr->id, skb, tx_hdr->length, tx_hdr->rate);
+	wl1251_debug(DEBUG_TX, "tx id %u skb 0x%p payload %u rate 0x%x "
+		     "queue %d", tx_hdr->id, skb, tx_hdr->length,
+		     tx_hdr->rate, tx_hdr->xmit_queue);
 
 	return 0;
 }

drivers/net/wireless/wl12xx/wl1251_tx.h

@@ -26,6 +26,7 @@
 #define __WL1251_TX_H__
 
 #include <linux/bitops.h>
+#include "wl1251_acx.h"
 
 /*
  *
@@ -209,6 +210,22 @@ struct tx_result {
 	u8 done_2;
 } __attribute__ ((packed));
 
+static inline int wl1251_tx_get_queue(int queue)
+{
+	switch (queue) {
+	case 0:
+		return QOS_AC_VO;
+	case 1:
+		return QOS_AC_VI;
+	case 2:
+		return QOS_AC_BE;
+	case 3:
+		return QOS_AC_BK;
+	default:
+		return QOS_AC_BE;
+	}
+}
+
 void wl1251_tx_work(struct work_struct *work);
 void wl1251_tx_complete(struct wl1251 *wl);
 void wl1251_tx_flush(struct wl1251 *wl);

drivers/net/wireless/zd1211rw/zd_usb.c

@@ -1078,11 +1078,15 @@ static int eject_installer(struct usb_interface *intf)
 	int r;
 
 	/* Find bulk out endpoint */
-	endpoint = &iface_desc->endpoint[1].desc;
-	if (usb_endpoint_dir_out(endpoint) &&
-	    usb_endpoint_xfer_bulk(endpoint)) {
-		bulk_out_ep = endpoint->bEndpointAddress;
-	} else {
+	for (r = 1; r >= 0; r--) {
+		endpoint = &iface_desc->endpoint[r].desc;
+		if (usb_endpoint_dir_out(endpoint) &&
+		    usb_endpoint_xfer_bulk(endpoint)) {
+			bulk_out_ep = endpoint->bEndpointAddress;
+			break;
+		}
+	}
+	if (r == -1) {
 		dev_err(&udev->dev,
 			"zd1211rw: Could not find bulk out endpoint\n");
 		return -ENODEV;

include/linux/ieee80211.h

@@ -707,6 +707,10 @@ struct ieee80211_mgmt {
 					u8 action;
 					u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 				} __attribute__ ((packed)) sa_query;
+				struct {
+					u8 action;
+					u8 smps_control;
+				} __attribute__ ((packed)) ht_smps;
 			} u;
 		} __attribute__ ((packed)) action;
 	} u;
@@ -771,7 +775,10 @@ struct ieee80211_bar {
 /**
  * struct ieee80211_mcs_info - MCS information
  * @rx_mask: RX mask
- * @rx_highest: highest supported RX rate
+ * @rx_highest: highest supported RX rate. If set represents
+ *	the highest supported RX data rate in units of 1 Mbps.
+ *	If this field is 0 this value should not be used to
+ *	consider the highest RX data rate supported.
  * @tx_params: TX parameters
  */
 struct ieee80211_mcs_info {
@@ -824,6 +831,7 @@ struct ieee80211_ht_cap {
 #define IEEE80211_HT_CAP_LDPC_CODING		0x0001
 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40	0x0002
 #define IEEE80211_HT_CAP_SM_PS			0x000C
+#define		IEEE80211_HT_CAP_SM_PS_SHIFT	2
 #define IEEE80211_HT_CAP_GRN_FLD		0x0010
 #define IEEE80211_HT_CAP_SGI_20			0x0020
 #define IEEE80211_HT_CAP_SGI_40			0x0040
@@ -839,6 +847,7 @@ struct ieee80211_ht_cap {
 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
 #define IEEE80211_HT_AMPDU_PARM_FACTOR		0x03
 #define IEEE80211_HT_AMPDU_PARM_DENSITY		0x1C
+#define		IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT	2
 
 /*
  * Maximum length of AMPDU that the STA can receive.
@@ -922,12 +931,17 @@ struct ieee80211_ht_info {
 #define IEEE80211_MAX_AMPDU_BUF 0x40
 
 
-/* Spatial Multiplexing Power Save Modes */
+/* Spatial Multiplexing Power Save Modes (for capability) */
 #define WLAN_HT_CAP_SM_PS_STATIC	0
 #define WLAN_HT_CAP_SM_PS_DYNAMIC	1
 #define WLAN_HT_CAP_SM_PS_INVALID	2
 #define WLAN_HT_CAP_SM_PS_DISABLED	3
 
+/* for SM power control field lower two bits */
+#define WLAN_HT_SMPS_CONTROL_DISABLED	0
+#define WLAN_HT_SMPS_CONTROL_STATIC	1
+#define WLAN_HT_SMPS_CONTROL_DYNAMIC	3
+
 /* Authentication algorithms */
 #define WLAN_AUTH_OPEN 0
 #define WLAN_AUTH_SHARED_KEY 1
@@ -1150,6 +1164,18 @@ enum ieee80211_spectrum_mgmt_actioncode {
 	WLAN_ACTION_SPCT_CHL_SWITCH = 4,
 };
 
+/* HT action codes */
+enum ieee80211_ht_actioncode {
+	WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
+	WLAN_HT_ACTION_SMPS = 1,
+	WLAN_HT_ACTION_PSMP = 2,
+	WLAN_HT_ACTION_PCO_PHASE = 3,
+	WLAN_HT_ACTION_CSI = 4,
+	WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
+	WLAN_HT_ACTION_COMPRESSED_BF = 6,
+	WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
+};
+
 /* Security key length */
 enum ieee80211_key_len {
 	WLAN_KEY_LEN_WEP40 = 5,

include/net/cfg80211.h

@@ -1578,7 +1578,7 @@ unsigned int ieee80211_hdrlen(__le16 fc);
  * @addr: the device MAC address
  * @iftype: the virtual interface type
  */
-int ieee80211_data_to_8023(struct sk_buff *skb, u8 *addr,
+int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
 			   enum nl80211_iftype iftype);
 
 /**
@@ -1589,9 +1589,27 @@ int ieee80211_data_to_8023(struct sk_buff *skb, u8 *addr,
  * @bssid: the network bssid (used only for iftype STATION and ADHOC)
  * @qos: build 802.11 QoS data frame
  */
-int ieee80211_data_from_8023(struct sk_buff *skb, u8 *addr,
+int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
 			     enum nl80211_iftype iftype, u8 *bssid, bool qos);
 
+/**
+ * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
+ *
+ * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
+ * 802.3 frames. The @list will be empty if the decode fails. The
+ * @skb is consumed after the function returns.
+ *
+ * @skb: The input IEEE 802.11n A-MSDU frame.
+ * @list: The output list of 802.3 frames. It must be allocated and
+ *	initialized by by the caller.
+ * @addr: The device MAC address.
+ * @iftype: The device interface type.
+ * @extra_headroom: The hardware extra headroom for SKBs in the @list.
+ */
+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);
+
 /**
  * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
  * @skb: the data frame

include/net/mac80211.h

@@ -597,8 +597,10 @@ enum ieee80211_conf_flags {
  * @IEEE80211_CONF_CHANGE_CHANNEL: the channel/channel_type changed
  * @IEEE80211_CONF_CHANGE_RETRY_LIMITS: retry limits changed
  * @IEEE80211_CONF_CHANGE_IDLE: Idle flag changed
+ * @IEEE80211_CONF_CHANGE_SMPS: Spatial multiplexing powersave mode changed
  */
 enum ieee80211_conf_changed {
+	IEEE80211_CONF_CHANGE_SMPS		= BIT(1),
 	IEEE80211_CONF_CHANGE_LISTEN_INTERVAL	= BIT(2),
 	IEEE80211_CONF_CHANGE_MONITOR		= BIT(3),
 	IEEE80211_CONF_CHANGE_PS		= BIT(4),
@@ -608,6 +610,21 @@ enum ieee80211_conf_changed {
 	IEEE80211_CONF_CHANGE_IDLE		= BIT(8),
 };
 
+/**
+ * enum ieee80211_smps_mode - spatial multiplexing power save mode
+ *
+ * @
+ */
+enum ieee80211_smps_mode {
+	IEEE80211_SMPS_AUTOMATIC,
+	IEEE80211_SMPS_OFF,
+	IEEE80211_SMPS_STATIC,
+	IEEE80211_SMPS_DYNAMIC,
+
+	/* keep last */
+	IEEE80211_SMPS_NUM_MODES,
+};
+
 /**
  * struct ieee80211_conf - configuration of the device
  *
@@ -636,6 +653,10 @@ enum ieee80211_conf_changed {
  * @short_frame_max_tx_count: Maximum number of transmissions for a "short"
  *    frame, called "dot11ShortRetryLimit" in 802.11, but actually means the
  *    number of transmissions not the number of retries
+ *
+ * @smps_mode: spatial multiplexing powersave mode; note that
+ *	%IEEE80211_SMPS_STATIC is used when the device is not
+ *	configured for an HT channel
  */
 struct ieee80211_conf {
 	u32 flags;
@@ -648,6 +669,7 @@ struct ieee80211_conf {
 
 	struct ieee80211_channel *channel;
 	enum nl80211_channel_type channel_type;
+	enum ieee80211_smps_mode smps_mode;
 };
 
 /**
@@ -659,12 +681,14 @@ struct ieee80211_conf {
  * @type: type of this virtual interface
  * @bss_conf: BSS configuration for this interface, either our own
  *	or the BSS we're associated to
+ * @addr: address of this interface
  * @drv_priv: data area for driver use, will always be aligned to
  *	sizeof(void *).
  */
 struct ieee80211_vif {
 	enum nl80211_iftype type;
 	struct ieee80211_bss_conf bss_conf;
+	u8 addr[ETH_ALEN];
 	/* must be last */
 	u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *))));
 };
@@ -928,6 +952,16 @@ enum ieee80211_tkip_key_type {
  * @IEEE80211_HW_BEACON_FILTER:
  *	Hardware supports dropping of irrelevant beacon frames to
  *	avoid waking up cpu.
+ *
+ * @IEEE80211_HW_SUPPORTS_STATIC_SMPS:
+ *	Hardware supports static spatial multiplexing powersave,
+ *	ie. can turn off all but one chain even on HT connections
+ *	that should be using more chains.
+ *
+ * @IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS:
+ *	Hardware supports dynamic spatial multiplexing powersave,
+ *	ie. can turn off all but one chain and then wake the rest
+ *	up as required after, for example, rts/cts handshake.
  */
 enum ieee80211_hw_flags {
 	IEEE80211_HW_HAS_RATE_CONTROL			= 1<<0,
@@ -945,6 +979,8 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_SUPPORTS_DYNAMIC_PS		= 1<<12,
 	IEEE80211_HW_MFP_CAPABLE			= 1<<13,
 	IEEE80211_HW_BEACON_FILTER			= 1<<14,
+	IEEE80211_HW_SUPPORTS_STATIC_SMPS		= 1<<15,
+	IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS		= 1<<16,
 };
 
 /**
@@ -1212,6 +1248,31 @@ ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw,
  * signal strength threshold checking.
  */
 
+/**
+ * DOC: Spatial multiplexing power save
+ *
+ * SMPS (Spatial multiplexing power save) is a mechanism to conserve
+ * power in an 802.11n implementation. For details on the mechanism
+ * and rationale, please refer to 802.11 (as amended by 802.11n-2009)
+ * "11.2.3 SM power save".
+ *
+ * The mac80211 implementation is capable of sending action frames
+ * to update the AP about the station's SMPS mode, and will instruct
+ * the driver to enter the specific mode. It will also announce the
+ * requested SMPS mode during the association handshake. Hardware
+ * support for this feature is required, and can be indicated by
+ * hardware flags.
+ *
+ * The default mode will be "automatic", which nl80211/cfg80211
+ * defines to be dynamic SMPS in (regular) powersave, and SMPS
+ * turned off otherwise.
+ *
+ * To support this feature, the driver must set the appropriate
+ * hardware support flags, and handle the SMPS flag to the config()
+ * operation. It will then with this mechanism be instructed to
+ * enter the requested SMPS mode while associated to an HT AP.
+ */
+
 /**
  * DOC: Frame filtering
  *

net/mac80211/Kconfig

@@ -96,18 +96,6 @@ menuconfig MAC80211_DEBUG_MENU
 	---help---
 	  This option collects various mac80211 debug settings.
 
-config MAC80211_DEBUG_PACKET_ALIGNMENT
-	bool "Enable packet alignment debugging"
-	depends on MAC80211_DEBUG_MENU
-	---help---
-	  This option is recommended for driver authors and strongly
-	  discouraged for everybody else, it will trigger a warning
-	  when a driver hands mac80211 a buffer that is aligned in
-	  a way that will cause problems with the IP stack on some
-	  architectures.
-
-	  Say N unless you're writing a mac80211 based driver.
-
 config MAC80211_NOINLINE
 	bool "Do not inline TX/RX handlers"
 	depends on MAC80211_DEBUG_MENU

net/mac80211/agg-rx.c

@@ -41,8 +41,7 @@ void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 	       sta->sta.addr, tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
-	if (drv_ampdu_action(local, &sta->sdata->vif,
-			     IEEE80211_AMPDU_RX_STOP,
+	if (drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_STOP,
 			     &sta->sta, tid, NULL))
 		printk(KERN_DEBUG "HW problem - can not stop rx "
 				"aggregation for tid %d\n", tid);
@@ -83,12 +82,11 @@ void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid,
 					u16 initiator, u16 reason)
 {
-	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 
 	rcu_read_lock();
 
-	sta = sta_info_get(local, ra);
+	sta = sta_info_get(sdata, ra);
 	if (!sta) {
 		rcu_read_unlock();
 		return;
@@ -136,7 +134,7 @@ static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *d
 
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer "
-		       "for addba resp frame\n", sdata->dev->name);
+		       "for addba resp frame\n", sdata->name);
 		return;
 	}
 
@@ -144,10 +142,10 @@ static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *d
 	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
 	memset(mgmt, 0, 24);
 	memcpy(mgmt->da, da, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	if (sdata->vif.type == NL80211_IFTYPE_AP ||
 	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
-		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
+		memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
 	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
 
@@ -281,8 +279,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
 		goto end;
 	}
 
-	ret = drv_ampdu_action(local, &sta->sdata->vif,
-			       IEEE80211_AMPDU_RX_START,
+	ret = drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_START,
 			       &sta->sta, tid, &start_seq_num);
 #ifdef CONFIG_MAC80211_HT_DEBUG
 	printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret);

net/mac80211/agg-tx.c

@@ -58,17 +58,17 @@ static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata,
 
 	if (!skb) {
 		printk(KERN_ERR "%s: failed to allocate buffer "
-				"for addba request frame\n", sdata->dev->name);
+				"for addba request frame\n", sdata->name);
 		return;
 	}
 	skb_reserve(skb, local->hw.extra_tx_headroom);
 	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
 	memset(mgmt, 0, 24);
 	memcpy(mgmt->da, da, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	if (sdata->vif.type == NL80211_IFTYPE_AP ||
 	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
-		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
+		memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
 	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
 
@@ -104,7 +104,7 @@ void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u1
 	skb = dev_alloc_skb(sizeof(*bar) + local->hw.extra_tx_headroom);
 	if (!skb) {
 		printk(KERN_ERR "%s: failed to allocate buffer for "
-			"bar frame\n", sdata->dev->name);
+			"bar frame\n", sdata->name);
 		return;
 	}
 	skb_reserve(skb, local->hw.extra_tx_headroom);
@@ -113,7 +113,7 @@ void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u1
 	bar->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
 					 IEEE80211_STYPE_BACK_REQ);
 	memcpy(bar->ra, ra, ETH_ALEN);
-	memcpy(bar->ta, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(bar->ta, sdata->vif.addr, ETH_ALEN);
 	bar_control |= (u16)IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL;
 	bar_control |= (u16)IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA;
 	bar_control |= (u16)(tid << 12);
@@ -144,7 +144,7 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 	*state = HT_AGG_STATE_REQ_STOP_BA_MSK |
 		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
 
-	ret = drv_ampdu_action(local, &sta->sdata->vif,
+	ret = drv_ampdu_action(local, sta->sdata,
 			       IEEE80211_AMPDU_TX_STOP,
 			       &sta->sta, tid, NULL);
 
@@ -303,8 +303,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid)
 
 	start_seq_num = sta->tid_seq[tid];
 
-	ret = drv_ampdu_action(local, &sdata->vif,
-			       IEEE80211_AMPDU_TX_START,
+	ret = drv_ampdu_action(local, sdata, IEEE80211_AMPDU_TX_START,
 			       pubsta, tid, &start_seq_num);
 
 	if (ret) {
@@ -420,7 +419,7 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local,
 	ieee80211_agg_splice_finish(local, sta, tid);
 	spin_unlock(&local->ampdu_lock);
 
-	drv_ampdu_action(local, &sta->sdata->vif,
+	drv_ampdu_action(local, sta->sdata,
 			 IEEE80211_AMPDU_TX_OPERATIONAL,
 			 &sta->sta, tid, NULL);
 }
@@ -441,7 +440,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid)
 	}
 
 	rcu_read_lock();
-	sta = sta_info_get(local, ra);
+	sta = sta_info_get(sdata, ra);
 	if (!sta) {
 		rcu_read_unlock();
 #ifdef CONFIG_MAC80211_HT_DEBUG
@@ -489,7 +488,7 @@ void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_vif *vif,
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		if (net_ratelimit())
 			printk(KERN_WARNING "%s: Not enough memory, "
-			       "dropping start BA session", skb->dev->name);
+			       "dropping start BA session", sdata->name);
 #endif
 		return;
 	}
@@ -564,7 +563,7 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid)
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
 	rcu_read_lock();
-	sta = sta_info_get(local, ra);
+	sta = sta_info_get(sdata, ra);
 	if (!sta) {
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		printk(KERN_DEBUG "Could not find station: %pM\n", ra);
@@ -621,7 +620,7 @@ void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_vif *vif,
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		if (net_ratelimit())
 			printk(KERN_WARNING "%s: Not enough memory, "
-			       "dropping stop BA session", skb->dev->name);
+			       "dropping stop BA session", sdata->name);
 #endif
 		return;
 	}

net/mac80211/cfg.c

@@ -150,7 +150,7 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 	rcu_read_lock();
 
 	if (mac_addr) {
-		sta = sta_info_get(sdata->local, mac_addr);
+		sta = sta_info_get(sdata, mac_addr);
 		if (!sta) {
 			ieee80211_key_free(key);
 			err = -ENOENT;
@@ -181,7 +181,7 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 	if (mac_addr) {
 		ret = -ENOENT;
 
-		sta = sta_info_get(sdata->local, mac_addr);
+		sta = sta_info_get(sdata, mac_addr);
 		if (!sta)
 			goto out_unlock;
 
@@ -228,7 +228,7 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 	rcu_read_lock();
 
 	if (mac_addr) {
-		sta = sta_info_get(sdata->local, mac_addr);
+		sta = sta_info_get(sdata, mac_addr);
 		if (!sta)
 			goto out;
 
@@ -415,15 +415,13 @@ static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 				 u8 *mac, struct station_info *sinfo)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct sta_info *sta;
 	int ret = -ENOENT;
 
 	rcu_read_lock();
 
-	/* XXX: verify sta->dev == dev */
-
-	sta = sta_info_get(local, mac);
+	sta = sta_info_get(sdata, mac);
 	if (sta) {
 		ret = 0;
 		sta_set_sinfo(sta, sinfo);
@@ -732,7 +730,7 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 	} else
 		sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	if (compare_ether_addr(mac, dev->dev_addr) == 0)
+	if (compare_ether_addr(mac, sdata->vif.addr) == 0)
 		return -EINVAL;
 
 	if (is_multicast_ether_addr(mac))
@@ -779,8 +777,7 @@ static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 	if (mac) {
 		rcu_read_lock();
 
-		/* XXX: get sta belonging to dev */
-		sta = sta_info_get(local, mac);
+		sta = sta_info_get(sdata, mac);
 		if (!sta) {
 			rcu_read_unlock();
 			return -ENOENT;
@@ -801,14 +798,14 @@ static int ieee80211_change_station(struct wiphy *wiphy,
 				    u8 *mac,
 				    struct station_parameters *params)
 {
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = wiphy_priv(wiphy);
 	struct sta_info *sta;
 	struct ieee80211_sub_if_data *vlansdata;
 
 	rcu_read_lock();
 
-	/* XXX: get sta belonging to dev */
-	sta = sta_info_get(local, mac);
+	sta = sta_info_get(sdata, mac);
 	if (!sta) {
 		rcu_read_unlock();
 		return -ENOENT;
@@ -847,7 +844,6 @@ static int ieee80211_change_station(struct wiphy *wiphy,
 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 				 u8 *dst, u8 *next_hop)
 {
-	struct ieee80211_local *local = wiphy_priv(wiphy);
 	struct ieee80211_sub_if_data *sdata;
 	struct mesh_path *mpath;
 	struct sta_info *sta;
@@ -856,7 +852,7 @@ static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
 	rcu_read_lock();
-	sta = sta_info_get(local, next_hop);
+	sta = sta_info_get(sdata, next_hop);
 	if (!sta) {
 		rcu_read_unlock();
 		return -ENOENT;
@@ -895,7 +891,6 @@ static int ieee80211_change_mpath(struct wiphy *wiphy,
 				    struct net_device *dev,
 				    u8 *dst, u8 *next_hop)
 {
-	struct ieee80211_local *local = wiphy_priv(wiphy);
 	struct ieee80211_sub_if_data *sdata;
 	struct mesh_path *mpath;
 	struct sta_info *sta;
@@ -904,7 +899,7 @@ static int ieee80211_change_mpath(struct wiphy *wiphy,
 
 	rcu_read_lock();
 
-	sta = sta_info_get(local, next_hop);
+	sta = sta_info_get(sdata, next_hop);
 	if (!sta) {
 		rcu_read_unlock();
 		return -ENOENT;
@@ -1324,6 +1319,50 @@ static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
 }
 #endif
 
+int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
+			     enum ieee80211_smps_mode smps_mode)
+{
+	const u8 *ap;
+	enum ieee80211_smps_mode old_req;
+	int err;
+
+	old_req = sdata->u.mgd.req_smps;
+	sdata->u.mgd.req_smps = smps_mode;
+
+	if (old_req == smps_mode &&
+	    smps_mode != IEEE80211_SMPS_AUTOMATIC)
+		return 0;
+
+	/*
+	 * If not associated, or current association is not an HT
+	 * association, there's no need to send an action frame.
+	 */
+	if (!sdata->u.mgd.associated ||
+	    sdata->local->oper_channel_type == NL80211_CHAN_NO_HT) {
+		mutex_lock(&sdata->local->iflist_mtx);
+		ieee80211_recalc_smps(sdata->local, sdata);
+		mutex_unlock(&sdata->local->iflist_mtx);
+		return 0;
+	}
+
+	ap = sdata->u.mgd.associated->cbss.bssid;
+
+	if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
+		if (sdata->u.mgd.powersave)
+			smps_mode = IEEE80211_SMPS_DYNAMIC;
+		else
+			smps_mode = IEEE80211_SMPS_OFF;
+	}
+
+	/* send SM PS frame to AP */
+	err = ieee80211_send_smps_action(sdata, smps_mode,
+					 ap, ap);
+	if (err)
+		sdata->u.mgd.req_smps = old_req;
+
+	return err;
+}
+
 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
 				    bool enabled, int timeout)
 {
@@ -1341,6 +1380,11 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
 	sdata->u.mgd.powersave = enabled;
 	conf->dynamic_ps_timeout = timeout;
 
+	/* no change, but if automatic follow powersave */
+	mutex_lock(&sdata->u.mgd.mtx);
+	__ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
+	mutex_unlock(&sdata->u.mgd.mtx);
+
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 
@@ -1356,15 +1400,25 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	int i, err = -EINVAL;
+	int i;
 	u32 target_rate;
 	struct ieee80211_supported_band *sband;
 
+	/*
+	 * This _could_ be supported by providing a hook for
+	 * drivers for this function, but at this point it
+	 * doesn't seem worth bothering.
+	 */
+	if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
+		return -EOPNOTSUPP;
+
 	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 
-	/* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
+	/*
+	 * target_rate = -1, rate->fixed = 0 means auto only, so use all rates
 	 * target_rate = X, rate->fixed = 1 means only rate X
-	 * target_rate = X, rate->fixed = 0 means all rates <= X */
+	 * target_rate = X, rate->fixed = 0 means all rates <= X
+	 */
 	sdata->max_ratectrl_rateidx = -1;
 	sdata->force_unicast_rateidx = -1;
 
@@ -1375,20 +1429,18 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
 	else
 		return 0;
 
-	for (i=0; i< sband->n_bitrates; i++) {
-		struct ieee80211_rate *brate = &sband->bitrates[i];
-		int this_rate = brate->bitrate;
+	for (i = 0; i< sband->n_bitrates; i++) {
+		if (target_rate != sband->bitrates[i].bitrate)
+			continue;
 
-		if (target_rate == this_rate) {
-			sdata->max_ratectrl_rateidx = i;
-			if (mask->fixed)
-				sdata->force_unicast_rateidx = i;
-			err = 0;
-			break;
-		}
+		/* requested bitrate found */
+		sdata->max_ratectrl_rateidx = i;
+		if (mask->fixed)
+			sdata->force_unicast_rateidx = i;
+		return 0;
 	}
 
-	return err;
+	return -EINVAL;
 }
 
 struct cfg80211_ops mac80211_config_ops = {

net/mac80211/debugfs_key.c

@@ -56,7 +56,7 @@ KEY_CONF_FILE(keyidx, D);
 KEY_CONF_FILE(hw_key_idx, D);
 KEY_FILE(flags, X);
 KEY_FILE(tx_rx_count, D);
-KEY_READ(ifindex, sdata->dev->ifindex, 20, "%d\n");
+KEY_READ(ifindex, sdata->name, IFNAMSIZ + 2, "%s\n");
 KEY_OPS(ifindex);
 
 static ssize_t key_algorithm_read(struct file *file,

net/mac80211/debugfs_netdev.c

@@ -41,6 +41,30 @@ static ssize_t ieee80211_if_read(
 	return ret;
 }
 
+static ssize_t ieee80211_if_write(
+	struct ieee80211_sub_if_data *sdata,
+	const char __user *userbuf,
+	size_t count, loff_t *ppos,
+	ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int))
+{
+	u8 *buf;
+	ssize_t ret = -ENODEV;
+
+	buf = kzalloc(count, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	if (copy_from_user(buf, userbuf, count))
+		return -EFAULT;
+
+	rtnl_lock();
+	if (sdata->dev->reg_state == NETREG_REGISTERED)
+		ret = (*write)(sdata, buf, count);
+	rtnl_unlock();
+
+	return ret;
+}
+
 #define IEEE80211_IF_FMT(name, field, format_string)			\
 static ssize_t ieee80211_if_fmt_##name(					\
 	const struct ieee80211_sub_if_data *sdata, char *buf,		\
@@ -71,7 +95,7 @@ static ssize_t ieee80211_if_fmt_##name(					\
 	return scnprintf(buf, buflen, "%pM\n", sdata->field);		\
 }
 
-#define __IEEE80211_IF_FILE(name)					\
+#define __IEEE80211_IF_FILE(name, _write)				\
 static ssize_t ieee80211_if_read_##name(struct file *file,		\
 					char __user *userbuf,		\
 					size_t count, loff_t *ppos)	\
@@ -82,12 +106,24 @@ static ssize_t ieee80211_if_read_##name(struct file *file,		\
 }									\
 static const struct file_operations name##_ops = {			\
 	.read = ieee80211_if_read_##name,				\
+	.write = (_write),						\
 	.open = mac80211_open_file_generic,				\
 }
 
+#define __IEEE80211_IF_FILE_W(name)					\
+static ssize_t ieee80211_if_write_##name(struct file *file,		\
+					 const char __user *userbuf,	\
+					 size_t count, loff_t *ppos)	\
+{									\
+	return ieee80211_if_write(file->private_data, userbuf, count,	\
+				  ppos, ieee80211_if_parse_##name);	\
+}									\
+__IEEE80211_IF_FILE(name, ieee80211_if_write_##name)
+
+
 #define IEEE80211_IF_FILE(name, field, format)				\
 		IEEE80211_IF_FMT_##format(name, field)			\
-		__IEEE80211_IF_FILE(name)
+		__IEEE80211_IF_FILE(name, NULL)
 
 /* common attributes */
 IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
@@ -99,6 +135,70 @@ IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
 IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
 IEEE80211_IF_FILE(capab, u.mgd.capab, HEX);
 
+static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
+			      enum ieee80211_smps_mode smps_mode)
+{
+	struct ieee80211_local *local = sdata->local;
+	int err;
+
+	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS) &&
+	    smps_mode == IEEE80211_SMPS_STATIC)
+		return -EINVAL;
+
+	/* auto should be dynamic if in PS mode */
+	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS) &&
+	    (smps_mode == IEEE80211_SMPS_DYNAMIC ||
+	     smps_mode == IEEE80211_SMPS_AUTOMATIC))
+		return -EINVAL;
+
+	/* supported only on managed interfaces for now */
+	if (sdata->vif.type != NL80211_IFTYPE_STATION)
+		return -EOPNOTSUPP;
+
+	mutex_lock(&local->iflist_mtx);
+	err = __ieee80211_request_smps(sdata, smps_mode);
+	mutex_unlock(&local->iflist_mtx);
+
+	return err;
+}
+
+static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
+	[IEEE80211_SMPS_AUTOMATIC] = "auto",
+	[IEEE80211_SMPS_OFF] = "off",
+	[IEEE80211_SMPS_STATIC] = "static",
+	[IEEE80211_SMPS_DYNAMIC] = "dynamic",
+};
+
+static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
+				     char *buf, int buflen)
+{
+	if (sdata->vif.type != NL80211_IFTYPE_STATION)
+		return -EOPNOTSUPP;
+
+	return snprintf(buf, buflen, "request: %s\nused: %s\n",
+			smps_modes[sdata->u.mgd.req_smps],
+			smps_modes[sdata->u.mgd.ap_smps]);
+}
+
+static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
+				       const char *buf, int buflen)
+{
+	enum ieee80211_smps_mode mode;
+
+	for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
+		if (strncmp(buf, smps_modes[mode], buflen) == 0) {
+			int err = ieee80211_set_smps(sdata, mode);
+			if (!err)
+				return buflen;
+			return err;
+		}
+	}
+
+	return -EINVAL;
+}
+
+__IEEE80211_IF_FILE_W(smps);
+
 /* AP attributes */
 IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
 IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
@@ -109,7 +209,7 @@ static ssize_t ieee80211_if_fmt_num_buffered_multicast(
 	return scnprintf(buf, buflen, "%u\n",
 			 skb_queue_len(&sdata->u.ap.ps_bc_buf));
 }
-__IEEE80211_IF_FILE(num_buffered_multicast);
+__IEEE80211_IF_FILE(num_buffered_multicast, NULL);
 
 /* WDS attributes */
 IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
@@ -158,6 +258,10 @@ IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
 	debugfs_create_file(#name, 0400, sdata->debugfs.dir, \
 			    sdata, &name##_ops);
 
+#define DEBUGFS_ADD_MODE(name, mode) \
+	debugfs_create_file(#name, mode, sdata->debugfs.dir, \
+			    sdata, &name##_ops);
+
 static void add_sta_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(drop_unencrypted, sta);
@@ -167,6 +271,7 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata)
 	DEBUGFS_ADD(bssid, sta);
 	DEBUGFS_ADD(aid, sta);
 	DEBUGFS_ADD(capab, sta);
+	DEBUGFS_ADD_MODE(smps, 0600);
 }
 
 static void add_ap_files(struct ieee80211_sub_if_data *sdata)
@@ -280,16 +385,11 @@ static void add_files(struct ieee80211_sub_if_data *sdata)
 	}
 }
 
-static int notif_registered;
-
 void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
 {
 	char buf[10+IFNAMSIZ];
 
-	if (!notif_registered)
-		return;
-
-	sprintf(buf, "netdev:%s", sdata->dev->name);
+	sprintf(buf, "netdev:%s", sdata->name);
 	sdata->debugfs.dir = debugfs_create_dir(buf,
 		sdata->local->hw.wiphy->debugfsdir);
 	add_files(sdata);
@@ -304,58 +404,18 @@ void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
 	sdata->debugfs.dir = NULL;
 }
 
-static int netdev_notify(struct notifier_block *nb,
-			 unsigned long state,
-			 void *ndev)
+void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
 {
-	struct net_device *dev = ndev;
 	struct dentry *dir;
-	struct ieee80211_sub_if_data *sdata;
-	char buf[10+IFNAMSIZ];
-
-	if (state != NETDEV_CHANGENAME)
-		return 0;
-
-	if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy)
-		return 0;
-
-	if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
-		return 0;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	char buf[10 + IFNAMSIZ];
 
 	dir = sdata->debugfs.dir;
 
 	if (!dir)
-		return 0;
+		return;
 
-	sprintf(buf, "netdev:%s", dev->name);
+	sprintf(buf, "netdev:%s", sdata->name);
 	if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
 		printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
 		       "dir to %s\n", buf);
-
-	return 0;
-}
-
-static struct notifier_block mac80211_debugfs_netdev_notifier = {
-	.notifier_call = netdev_notify,
-};
-
-void ieee80211_debugfs_netdev_init(void)
-{
-	int err;
-
-	err = register_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
-	if (err) {
-		printk(KERN_ERR
-		       "mac80211: failed to install netdev notifier,"
-		       " disabling per-netdev debugfs!\n");
-	} else
-		notif_registered = 1;
-}
-
-void ieee80211_debugfs_netdev_exit(void)
-{
-	unregister_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
-	notif_registered = 0;
 }

net/mac80211/debugfs_netdev.h

@@ -6,8 +6,7 @@
 #ifdef CONFIG_MAC80211_DEBUGFS
 void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata);
 void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata);
-void ieee80211_debugfs_netdev_init(void);
-void ieee80211_debugfs_netdev_exit(void);
+void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata);
 #else
 static inline void ieee80211_debugfs_add_netdev(
 	struct ieee80211_sub_if_data *sdata)
@@ -15,10 +14,8 @@ static inline void ieee80211_debugfs_add_netdev(
 static inline void ieee80211_debugfs_remove_netdev(
 	struct ieee80211_sub_if_data *sdata)
 {}
-static inline void ieee80211_debugfs_netdev_init(void)
-{}
-
-static inline void ieee80211_debugfs_netdev_exit(void)
+static inline void ieee80211_debugfs_rename_netdev(
+	struct ieee80211_sub_if_data *sdata)
 {}
 #endif
 

net/mac80211/debugfs_sta.c

@@ -44,7 +44,7 @@ static const struct file_operations sta_ ##name## _ops = {		\
 		STA_OPS(name)
 
 STA_FILE(aid, sta.aid, D);
-STA_FILE(dev, sdata->dev->name, S);
+STA_FILE(dev, sdata->name, S);
 STA_FILE(rx_packets, rx_packets, LU);
 STA_FILE(tx_packets, tx_packets, LU);
 STA_FILE(rx_bytes, rx_bytes, LU);
@@ -160,7 +160,12 @@ STA_OPS(agg_status);
 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
 				size_t count, loff_t *ppos)
 {
-	char buf[200], *p = buf;
+#define PRINT_HT_CAP(_cond, _str) \
+	do { \
+	if (_cond) \
+			p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
+	} while (0)
+	char buf[1024], *p = buf;
 	int i;
 	struct sta_info *sta = file->private_data;
 	struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
@@ -168,15 +173,64 @@ static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
 	p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
 			htc->ht_supported ? "" : "not ");
 	if (htc->ht_supported) {
-		p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.2x\n", htc->cap);
+		p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
+
+		PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDCP");
+		PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
+		PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
+
+		PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
+		PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
+		PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
+
+		PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
+		PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
+		PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
+		PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
+
+		PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
+		PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
+		PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
+		PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
+
+		PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
+
+		PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
+			     "3839 bytes");
+		PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
+			     "7935 bytes");
+
+		/*
+		 * For beacons and probe response this would mean the BSS
+		 * does or does not allow the usage of DSSS/CCK HT40.
+		 * Otherwise it means the STA does or does not use
+		 * DSSS/CCK HT40.
+		 */
+		PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
+		PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
+
+		/* BIT(13) is reserved */
+
+		PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
+
+		PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
+
 		p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
 				htc->ampdu_factor, htc->ampdu_density);
 		p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
+
 		for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
 			p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
 					htc->mcs.rx_mask[i]);
-		p += scnprintf(p, sizeof(buf)+buf-p, "\nMCS rx highest: %d\n",
-				le16_to_cpu(htc->mcs.rx_highest));
+		p += scnprintf(p, sizeof(buf)+buf-p, "\n");
+
+		/* If not set this is meaningless */
+		if (le16_to_cpu(htc->mcs.rx_highest)) {
+			p += scnprintf(p, sizeof(buf)+buf-p,
+				       "MCS rx highest: %d Mbps\n",
+				       le16_to_cpu(htc->mcs.rx_highest));
+		}
+
 		p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
 				htc->mcs.tx_params);
 	}

net/mac80211/driver-ops.h

@@ -39,7 +39,7 @@ static inline int drv_add_interface(struct ieee80211_local *local,
 				    struct ieee80211_if_init_conf *conf)
 {
 	int ret = local->ops->add_interface(&local->hw, conf);
-	trace_drv_add_interface(local, conf->mac_addr, conf->vif, ret);
+	trace_drv_add_interface(local, vif_to_sdata(conf->vif), ret);
 	return ret;
 }
 
@@ -47,7 +47,7 @@ static inline void drv_remove_interface(struct ieee80211_local *local,
 					struct ieee80211_if_init_conf *conf)
 {
 	local->ops->remove_interface(&local->hw, conf);
-	trace_drv_remove_interface(local, conf->mac_addr, conf->vif);
+	trace_drv_remove_interface(local, vif_to_sdata(conf->vif));
 }
 
 static inline int drv_config(struct ieee80211_local *local, u32 changed)
@@ -58,13 +58,13 @@ static inline int drv_config(struct ieee80211_local *local, u32 changed)
 }
 
 static inline void drv_bss_info_changed(struct ieee80211_local *local,
-					struct ieee80211_vif *vif,
+					struct ieee80211_sub_if_data *sdata,
 					struct ieee80211_bss_conf *info,
 					u32 changed)
 {
 	if (local->ops->bss_info_changed)
-		local->ops->bss_info_changed(&local->hw, vif, info, changed);
-	trace_drv_bss_info_changed(local, vif, info, changed);
+		local->ops->bss_info_changed(&local->hw, &sdata->vif, info, changed);
+	trace_drv_bss_info_changed(local, sdata, info, changed);
 }
 
 static inline u64 drv_prepare_multicast(struct ieee80211_local *local,
@@ -106,12 +106,13 @@ static inline int drv_set_tim(struct ieee80211_local *local,
 }
 
 static inline int drv_set_key(struct ieee80211_local *local,
-			      enum set_key_cmd cmd, struct ieee80211_vif *vif,
+			      enum set_key_cmd cmd,
+			      struct ieee80211_sub_if_data *sdata,
 			      struct ieee80211_sta *sta,
 			      struct ieee80211_key_conf *key)
 {
-	int ret = local->ops->set_key(&local->hw, cmd, vif, sta, key);
-	trace_drv_set_key(local, cmd, vif, sta, key, ret);
+	int ret = local->ops->set_key(&local->hw, cmd, &sdata->vif, sta, key);
+	trace_drv_set_key(local, cmd, sdata, sta, key, ret);
 	return ret;
 }
 
@@ -179,13 +180,13 @@ static inline int drv_set_rts_threshold(struct ieee80211_local *local,
 }
 
 static inline void drv_sta_notify(struct ieee80211_local *local,
-				  struct ieee80211_vif *vif,
+				  struct ieee80211_sub_if_data *sdata,
 				  enum sta_notify_cmd cmd,
 				  struct ieee80211_sta *sta)
 {
 	if (local->ops->sta_notify)
-		local->ops->sta_notify(&local->hw, vif, cmd, sta);
-	trace_drv_sta_notify(local, vif, cmd, sta);
+		local->ops->sta_notify(&local->hw, &sdata->vif, cmd, sta);
+	trace_drv_sta_notify(local, sdata, cmd, sta);
 }
 
 static inline int drv_conf_tx(struct ieee80211_local *local, u16 queue,
@@ -239,16 +240,16 @@ static inline int drv_tx_last_beacon(struct ieee80211_local *local)
 }
 
 static inline int drv_ampdu_action(struct ieee80211_local *local,
-				   struct ieee80211_vif *vif,
+				   struct ieee80211_sub_if_data *sdata,
 				   enum ieee80211_ampdu_mlme_action action,
 				   struct ieee80211_sta *sta, u16 tid,
 				   u16 *ssn)
 {
 	int ret = -EOPNOTSUPP;
 	if (local->ops->ampdu_action)
-		ret = local->ops->ampdu_action(&local->hw, vif, action,
+		ret = local->ops->ampdu_action(&local->hw, &sdata->vif, action,
 					       sta, tid, ssn);
-	trace_drv_ampdu_action(local, vif, action, sta, tid, ssn, ret);
+	trace_drv_ampdu_action(local, sdata, action, sta, tid, ssn, ret);
 	return ret;
 }
 

net/mac80211/driver-trace.h

@@ -25,10 +25,12 @@ static inline void trace_ ## name(proto) {}
 #define STA_PR_FMT	" sta:%pM"
 #define STA_PR_ARG	__entry->sta_addr
 
-#define VIF_ENTRY	__field(enum nl80211_iftype, vif_type) __field(void *, vif)
-#define VIF_ASSIGN	__entry->vif_type = vif ? vif->type : 0; __entry->vif = vif
-#define VIF_PR_FMT	" vif:%p(%d)"
-#define VIF_PR_ARG	__entry->vif, __entry->vif_type
+#define VIF_ENTRY	__field(enum nl80211_iftype, vif_type) __field(void *, sdata) \
+			__string(vif_name, sdata->dev ? sdata->dev->name : "<nodev>")
+#define VIF_ASSIGN	__entry->vif_type = sdata->vif.type; __entry->sdata = sdata; \
+			__assign_str(vif_name, sdata->dev ? sdata->dev->name : "<nodev>")
+#define VIF_PR_FMT	" vif:%s(%d)"
+#define VIF_PR_ARG	__get_str(vif_name), __entry->vif_type
 
 TRACE_EVENT(drv_start,
 	TP_PROTO(struct ieee80211_local *local, int ret),
@@ -70,11 +72,10 @@ TRACE_EVENT(drv_stop,
 
 TRACE_EVENT(drv_add_interface,
 	TP_PROTO(struct ieee80211_local *local,
-		 const u8 *addr,
-		 struct ieee80211_vif *vif,
+		 struct ieee80211_sub_if_data *sdata,
 		 int ret),
 
-	TP_ARGS(local, addr, vif, ret),
+	TP_ARGS(local, sdata, ret),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
@@ -86,7 +87,7 @@ TRACE_EVENT(drv_add_interface,
 	TP_fast_assign(
 		LOCAL_ASSIGN;
 		VIF_ASSIGN;
-		memcpy(__entry->addr, addr, 6);
+		memcpy(__entry->addr, sdata->vif.addr, 6);
 		__entry->ret = ret;
 	),
 
@@ -97,10 +98,9 @@ TRACE_EVENT(drv_add_interface,
 );
 
 TRACE_EVENT(drv_remove_interface,
-	TP_PROTO(struct ieee80211_local *local,
-		 const u8 *addr, struct ieee80211_vif *vif),
+	TP_PROTO(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata),
 
-	TP_ARGS(local, addr, vif),
+	TP_ARGS(local, sdata),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
@@ -111,7 +111,7 @@ TRACE_EVENT(drv_remove_interface,
 	TP_fast_assign(
 		LOCAL_ASSIGN;
 		VIF_ASSIGN;
-		memcpy(__entry->addr, addr, 6);
+		memcpy(__entry->addr, sdata->vif.addr, 6);
 	),
 
 	TP_printk(
@@ -140,6 +140,7 @@ TRACE_EVENT(drv_config,
 		__field(u8, short_frame_max_tx_count)
 		__field(int, center_freq)
 		__field(int, channel_type)
+		__field(int, smps)
 	),
 
 	TP_fast_assign(
@@ -155,6 +156,7 @@ TRACE_EVENT(drv_config,
 		__entry->short_frame_max_tx_count = local->hw.conf.short_frame_max_tx_count;
 		__entry->center_freq = local->hw.conf.channel->center_freq;
 		__entry->channel_type = local->hw.conf.channel_type;
+		__entry->smps = local->hw.conf.smps_mode;
 	),
 
 	TP_printk(
@@ -165,11 +167,11 @@ TRACE_EVENT(drv_config,
 
 TRACE_EVENT(drv_bss_info_changed,
 	TP_PROTO(struct ieee80211_local *local,
-		 struct ieee80211_vif *vif,
+		 struct ieee80211_sub_if_data *sdata,
 		 struct ieee80211_bss_conf *info,
 		 u32 changed),
 
-	TP_ARGS(local, vif, info, changed),
+	TP_ARGS(local, sdata, info, changed),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
@@ -293,11 +295,11 @@ TRACE_EVENT(drv_set_tim,
 
 TRACE_EVENT(drv_set_key,
 	TP_PROTO(struct ieee80211_local *local,
-		 enum set_key_cmd cmd, struct ieee80211_vif *vif,
+		 enum set_key_cmd cmd, struct ieee80211_sub_if_data *sdata,
 		 struct ieee80211_sta *sta,
 		 struct ieee80211_key_conf *key, int ret),
 
-	TP_ARGS(local, cmd, vif, sta, key, ret),
+	TP_ARGS(local, cmd, sdata, sta, key, ret),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
@@ -491,11 +493,11 @@ TRACE_EVENT(drv_set_rts_threshold,
 
 TRACE_EVENT(drv_sta_notify,
 	TP_PROTO(struct ieee80211_local *local,
-		 struct ieee80211_vif *vif,
+		 struct ieee80211_sub_if_data *sdata,
 		 enum sta_notify_cmd cmd,
 		 struct ieee80211_sta *sta),
 
-	TP_ARGS(local, vif, cmd, sta),
+	TP_ARGS(local, sdata, cmd, sta),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
@@ -656,12 +658,12 @@ TRACE_EVENT(drv_tx_last_beacon,
 
 TRACE_EVENT(drv_ampdu_action,
 	TP_PROTO(struct ieee80211_local *local,
-		 struct ieee80211_vif *vif,
+		 struct ieee80211_sub_if_data *sdata,
 		 enum ieee80211_ampdu_mlme_action action,
 		 struct ieee80211_sta *sta, u16 tid,
 		 u16 *ssn, int ret),
 
-	TP_ARGS(local, vif, action, sta, tid, ssn, ret),
+	TP_ARGS(local, sdata, action, sta, tid, ssn, ret),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY

net/mac80211/ht.c

@@ -125,7 +125,7 @@ void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 
 	if (!skb) {
 		printk(KERN_ERR "%s: failed to allocate buffer "
-					"for delba frame\n", sdata->dev->name);
+					"for delba frame\n", sdata->name);
 		return;
 	}
 
@@ -133,10 +133,10 @@ void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
 	memset(mgmt, 0, 24);
 	memcpy(mgmt->da, da, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	if (sdata->vif.type == NL80211_IFTYPE_AP ||
 	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
-		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
+		memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
 	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
 
@@ -185,3 +185,50 @@ void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
 		spin_unlock_bh(&sta->lock);
 	}
 }
+
+int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
+			       enum ieee80211_smps_mode smps, const u8 *da,
+			       const u8 *bssid)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *action_frame;
+
+	/* 27 = header + category + action + smps mode */
+	skb = dev_alloc_skb(27 + local->hw.extra_tx_headroom);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+	action_frame = (void *)skb_put(skb, 27);
+	memcpy(action_frame->da, da, ETH_ALEN);
+	memcpy(action_frame->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(action_frame->bssid, bssid, ETH_ALEN);
+	action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+						  IEEE80211_STYPE_ACTION);
+	action_frame->u.action.category = WLAN_CATEGORY_HT;
+	action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
+	switch (smps) {
+	case IEEE80211_SMPS_AUTOMATIC:
+	case IEEE80211_SMPS_NUM_MODES:
+		WARN_ON(1);
+	case IEEE80211_SMPS_OFF:
+		action_frame->u.action.u.ht_smps.smps_control =
+				WLAN_HT_SMPS_CONTROL_DISABLED;
+		break;
+	case IEEE80211_SMPS_STATIC:
+		action_frame->u.action.u.ht_smps.smps_control =
+				WLAN_HT_SMPS_CONTROL_STATIC;
+		break;
+	case IEEE80211_SMPS_DYNAMIC:
+		action_frame->u.action.u.ht_smps.smps_control =
+				WLAN_HT_SMPS_CONTROL_DYNAMIC;
+		break;
+	}
+
+	/* we'll do more on status of this frame */
+	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
+	ieee80211_tx_skb(sdata, skb);
+
+	return 0;
+}

net/mac80211/ibss.c

@@ -117,7 +117,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					  IEEE80211_STYPE_PROBE_RESP);
 	memset(mgmt->da, 0xff, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
 	mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_int);
 	mgmt->u.beacon.timestamp = cpu_to_le64(tsf);
@@ -252,7 +252,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 
 		rcu_read_lock();
 
-		sta = sta_info_get(local, mgmt->sa);
+		sta = sta_info_get(sdata, mgmt->sa);
 		if (sta) {
 			u32 prev_rates;
 
@@ -266,7 +266,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 				printk(KERN_DEBUG "%s: updated supp_rates set "
 				    "for %pM based on beacon info (0x%llx | "
 				    "0x%llx -> 0x%llx)\n",
-				    sdata->dev->name,
+				    sdata->name,
 				    sta->sta.addr,
 				    (unsigned long long) prev_rates,
 				    (unsigned long long) supp_rates,
@@ -364,7 +364,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 		printk(KERN_DEBUG "%s: beacon TSF higher than "
 		       "local TSF - IBSS merge with BSSID %pM\n",
-		       sdata->dev->name, mgmt->bssid);
+		       sdata->name, mgmt->bssid);
 #endif
 		ieee80211_sta_join_ibss(sdata, bss);
 		ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, supp_rates);
@@ -393,7 +393,7 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 	if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) {
 		if (net_ratelimit())
 			printk(KERN_DEBUG "%s: No room for a new IBSS STA entry %pM\n",
-			       sdata->dev->name, addr);
+			       sdata->name, addr);
 		return NULL;
 	}
 
@@ -402,7 +402,7 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 	printk(KERN_DEBUG "%s: Adding new IBSS station %pM (dev=%s)\n",
-	       wiphy_name(local->hw.wiphy), addr, sdata->dev->name);
+	       wiphy_name(local->hw.wiphy), addr, sdata->name);
 #endif
 
 	sta = sta_info_alloc(sdata, addr, GFP_ATOMIC);
@@ -466,7 +466,7 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
 		return;
 
 	printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
-	       "IBSS networks with same SSID (merge)\n", sdata->dev->name);
+	       "IBSS networks with same SSID (merge)\n", sdata->name);
 
 	ieee80211_request_internal_scan(sdata, ifibss->ssid, ifibss->ssid_len);
 }
@@ -488,13 +488,13 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 		 * random number generator get different BSSID. */
 		get_random_bytes(bssid, ETH_ALEN);
 		for (i = 0; i < ETH_ALEN; i++)
-			bssid[i] ^= sdata->dev->dev_addr[i];
+			bssid[i] ^= sdata->vif.addr[i];
 		bssid[0] &= ~0x01;
 		bssid[0] |= 0x02;
 	}
 
 	printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %pM\n",
-	       sdata->dev->name, bssid);
+	       sdata->name, bssid);
 
 	sband = local->hw.wiphy->bands[ifibss->channel->band];
 
@@ -523,7 +523,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 	active_ibss = ieee80211_sta_active_ibss(sdata);
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 	printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
-	       sdata->dev->name, active_ibss);
+	       sdata->name, active_ibss);
 #endif /* CONFIG_MAC80211_IBSS_DEBUG */
 
 	if (active_ibss)
@@ -552,7 +552,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 
 		printk(KERN_DEBUG "%s: Selected IBSS BSSID %pM"
 		       " based on configured SSID\n",
-		       sdata->dev->name, bss->cbss.bssid);
+		       sdata->name, bss->cbss.bssid);
 
 		ieee80211_sta_join_ibss(sdata, bss);
 		ieee80211_rx_bss_put(local, bss);
@@ -571,7 +571,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 	} else if (time_after(jiffies, ifibss->last_scan_completed +
 					IEEE80211_SCAN_INTERVAL)) {
 		printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
-		       "join\n", sdata->dev->name);
+		       "join\n", sdata->name);
 
 		ieee80211_request_internal_scan(sdata, ifibss->ssid,
 						ifibss->ssid_len);
@@ -585,7 +585,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 				return;
 			}
 			printk(KERN_DEBUG "%s: IBSS not allowed on"
-			       " %d MHz\n", sdata->dev->name,
+			       " %d MHz\n", sdata->name,
 			       local->hw.conf.channel->center_freq);
 
 			/* No IBSS found - decrease scan interval and continue
@@ -619,7 +619,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 	printk(KERN_DEBUG "%s: RX ProbeReq SA=%pM DA=%pM BSSID=%pM"
 	       " (tx_last_beacon=%d)\n",
-	       sdata->dev->name, mgmt->sa, mgmt->da,
+	       sdata->name, mgmt->sa, mgmt->da,
 	       mgmt->bssid, tx_last_beacon);
 #endif /* CONFIG_MAC80211_IBSS_DEBUG */
 
@@ -637,7 +637,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 		printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq "
 		       "from %pM\n",
-		       sdata->dev->name, mgmt->sa);
+		       sdata->name, mgmt->sa);
 #endif
 		return;
 	}
@@ -657,7 +657,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 	memcpy(resp->da, mgmt->sa, ETH_ALEN);
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 	printk(KERN_DEBUG "%s: Sending ProbeResp to %pM\n",
-	       sdata->dev->name, resp->da);
+	       sdata->name, resp->da);
 #endif /* CONFIG_MAC80211_IBSS_DEBUG */
 	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
 	ieee80211_tx_skb(sdata, skb);
@@ -671,7 +671,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 	size_t baselen;
 	struct ieee802_11_elems elems;
 
-	if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN))
+	if (memcmp(mgmt->da, sdata->vif.addr, ETH_ALEN))
 		return; /* ignore ProbeResp to foreign address */
 
 	baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;

net/mac80211/ieee80211_i.h

@@ -140,7 +140,6 @@ typedef unsigned __bitwise__ ieee80211_tx_result;
 
 struct ieee80211_tx_data {
 	struct sk_buff *skb;
-	struct net_device *dev;
 	struct ieee80211_local *local;
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
@@ -298,6 +297,8 @@ struct ieee80211_if_managed {
 
 	unsigned long timers_running; /* used for quiesce/restart */
 	bool powersave; /* powersave requested for this iface */
+	enum ieee80211_smps_mode req_smps, /* requested smps mode */
+				 ap_smps; /* smps mode AP thinks we're in */
 
 	unsigned long request;
 
@@ -433,6 +434,8 @@ struct ieee80211_sub_if_data {
 
 	int drop_unencrypted;
 
+	char name[IFNAMSIZ];
+
 	/*
 	 * keep track of whether the HT opmode (stored in
 	 * vif.bss_info.ht_operation_mode) is valid.
@@ -586,6 +589,9 @@ struct ieee80211_local {
 	/* used for uploading changed mc list */
 	struct work_struct reconfig_filter;
 
+	/* used to reconfigure hardware SM PS */
+	struct work_struct recalc_smps;
+
 	/* aggregated multicast list */
 	struct dev_addr_list *mc_list;
 	int mc_count;
@@ -760,6 +766,8 @@ struct ieee80211_local {
 	int user_power_level; /* in dBm */
 	int power_constr_level; /* in dBm */
 
+	enum ieee80211_smps_mode smps_mode;
+
 	struct work_struct restart_work;
 
 #ifdef CONFIG_MAC80211_DEBUGFS
@@ -874,6 +882,8 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 void ieee80211_configure_filter(struct ieee80211_local *local);
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
 
+extern bool ieee80211_disable_40mhz_24ghz;
+
 /* STA code */
 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
@@ -938,6 +948,8 @@ void ieee80211_rx_bss_put(struct ieee80211_local *local,
 			  struct ieee80211_bss *bss);
 
 /* interface handling */
+int ieee80211_iface_init(void);
+void ieee80211_iface_exit(void);
 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 		     struct net_device **new_dev, enum nl80211_iftype type,
 		     struct vif_params *params);
@@ -976,6 +988,9 @@ void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u1
 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 			  const u8 *da, u16 tid,
 			  u16 initiator, u16 reason_code);
+int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
+			       enum ieee80211_smps_mode smps, const u8 *da,
+			       const u8 *bssid);
 
 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
 				u16 tid, u16 initiator, u16 reason);
@@ -1086,6 +1101,10 @@ void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
 			    struct ieee802_11_elems *elems,
 			    enum ieee80211_band band);
+int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
+			     enum ieee80211_smps_mode smps_mode);
+void ieee80211_recalc_smps(struct ieee80211_local *local,
+			   struct ieee80211_sub_if_data *forsdata);
 
 #ifdef CONFIG_MAC80211_NOINLINE
 #define debug_noinline noinline

net/mac80211/iface.c

@@ -60,6 +60,22 @@ static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
 	return 0;
 }
 
+static int ieee80211_change_mac(struct net_device *dev, void *addr)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	int ret;
+
+	if (netif_running(dev))
+		return -EBUSY;
+
+	ret = eth_mac_addr(dev, addr);
+
+	if (ret == 0)
+		memcpy(sdata->vif.addr, addr, ETH_ALEN);
+
+	return ret;
+}
+
 static inline int identical_mac_addr_allowed(int type1, int type2)
 {
 	return type1 == NL80211_IFTYPE_MONITOR ||
@@ -234,7 +250,7 @@ static int ieee80211_open(struct net_device *dev)
 	default:
 		conf.vif = &sdata->vif;
 		conf.type = sdata->vif.type;
-		conf.mac_addr = dev->dev_addr;
+		conf.mac_addr = sdata->vif.addr;
 		res = drv_add_interface(local, &conf);
 		if (res)
 			goto err_stop;
@@ -514,7 +530,7 @@ static int ieee80211_stop(struct net_device *dev)
 
 		conf.vif = &sdata->vif;
 		conf.type = sdata->vif.type;
-		conf.mac_addr = dev->dev_addr;
+		conf.mac_addr = sdata->vif.addr;
 		/* disable all keys for as long as this netdev is down */
 		ieee80211_disable_keys(sdata);
 		drv_remove_interface(local, &conf);
@@ -651,7 +667,7 @@ static const struct net_device_ops ieee80211_dataif_ops = {
 	.ndo_start_xmit		= ieee80211_subif_start_xmit,
 	.ndo_set_multicast_list = ieee80211_set_multicast_list,
 	.ndo_change_mtu 	= ieee80211_change_mtu,
-	.ndo_set_mac_address 	= eth_mac_addr,
+	.ndo_set_mac_address 	= ieee80211_change_mac,
 };
 
 static const struct net_device_ops ieee80211_monitorif_ops = {
@@ -794,6 +810,8 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 	/* don't use IEEE80211_DEV_TO_SUB_IF because it checks too much */
 	sdata = netdev_priv(ndev);
 	ndev->ieee80211_ptr = &sdata->wdev;
+	memcpy(sdata->vif.addr, ndev->dev_addr, ETH_ALEN);
+	memcpy(sdata->name, ndev->name, IFNAMSIZ);
 
 	/* initialise type-independent data */
 	sdata->wdev.wiphy = local->hw.wiphy;
@@ -945,3 +963,41 @@ void ieee80211_recalc_idle(struct ieee80211_local *local)
 	if (chg)
 		ieee80211_hw_config(local, chg);
 }
+
+static int netdev_notify(struct notifier_block *nb,
+			 unsigned long state,
+			 void *ndev)
+{
+	struct net_device *dev = ndev;
+	struct ieee80211_sub_if_data *sdata;
+
+	if (state != NETDEV_CHANGENAME)
+		return 0;
+
+	if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy)
+		return 0;
+
+	if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
+		return 0;
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	memcpy(sdata->name, sdata->name, IFNAMSIZ);
+
+	ieee80211_debugfs_rename_netdev(sdata);
+	return 0;
+}
+
+static struct notifier_block mac80211_netdev_notifier = {
+	.notifier_call = netdev_notify,
+};
+
+int ieee80211_iface_init(void)
+{
+	return register_netdevice_notifier(&mac80211_netdev_notifier);
+}
+
+void ieee80211_iface_exit(void)
+{
+	unregister_netdevice_notifier(&mac80211_netdev_notifier);
+}

net/mac80211/key.c

@@ -139,7 +139,7 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 				     struct ieee80211_sub_if_data,
 				     u.ap);
 
-	ret = drv_set_key(key->local, SET_KEY, &sdata->vif, sta, &key->conf);
+	ret = drv_set_key(key->local, SET_KEY, sdata, sta, &key->conf);
 
 	if (!ret) {
 		spin_lock_bh(&todo_lock);
@@ -181,7 +181,7 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
 				     struct ieee80211_sub_if_data,
 				     u.ap);
 
-	ret = drv_set_key(key->local, DISABLE_KEY, &sdata->vif,
+	ret = drv_set_key(key->local, DISABLE_KEY, sdata,
 			  sta, &key->conf);
 
 	if (ret)
@@ -421,7 +421,7 @@ void ieee80211_key_link(struct ieee80211_key *key,
 			 */
 
 			/* same here, the AP could be using QoS */
-			ap = sta_info_get(key->local, key->sdata->u.mgd.bssid);
+			ap = sta_info_get(key->sdata, key->sdata->u.mgd.bssid);
 			if (ap) {
 				if (test_sta_flags(ap, WLAN_STA_WME))
 					key->conf.flags |=

net/mac80211/key.h

@@ -59,11 +59,17 @@ enum ieee80211_internal_key_flags {
 	KEY_FLAG_TODO_DEFMGMTKEY	= BIT(6),
 };
 
+enum ieee80211_internal_tkip_state {
+	TKIP_STATE_NOT_INIT,
+	TKIP_STATE_PHASE1_DONE,
+	TKIP_STATE_PHASE1_HW_UPLOADED,
+};
+
 struct tkip_ctx {
 	u32 iv32;
 	u16 iv16;
 	u16 p1k[5];
-	int initialized;
+	enum ieee80211_internal_tkip_state state;
 };
 
 struct ieee80211_key {

net/mac80211/main.c

@@ -32,7 +32,12 @@
 #include "led.h"
 #include "cfg.h"
 #include "debugfs.h"
-#include "debugfs_netdev.h"
+
+
+bool ieee80211_disable_40mhz_24ghz;
+module_param(ieee80211_disable_40mhz_24ghz, bool, 0644);
+MODULE_PARM_DESC(ieee80211_disable_40mhz_24ghz,
+		 "Disable 40MHz support in the 2.4GHz band");
 
 void ieee80211_configure_filter(struct ieee80211_local *local)
 {
@@ -114,6 +119,18 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 		changed |= IEEE80211_CONF_CHANGE_CHANNEL;
 	}
 
+	if (!conf_is_ht(&local->hw.conf)) {
+		/*
+		 * mac80211.h documents that this is only valid
+		 * when the channel is set to an HT type, and
+		 * that otherwise STATIC is used.
+		 */
+		local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC;
+	} else if (local->hw.conf.smps_mode != local->smps_mode) {
+		local->hw.conf.smps_mode = local->smps_mode;
+		changed |= IEEE80211_CONF_CHANGE_SMPS;
+	}
+
 	if (scan_chan)
 		power = chan->max_power;
 	else
@@ -173,7 +190,7 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
 		sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid;
 	else if (sdata->vif.type == NL80211_IFTYPE_AP)
-		sdata->vif.bss_conf.bssid = sdata->dev->dev_addr;
+		sdata->vif.bss_conf.bssid = sdata->vif.addr;
 	else if (ieee80211_vif_is_mesh(&sdata->vif)) {
 		sdata->vif.bss_conf.bssid = zero;
 	} else {
@@ -223,8 +240,7 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 		}
 	}
 
-	drv_bss_info_changed(local, &sdata->vif,
-			     &sdata->vif.bss_conf, changed);
+	drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed);
 }
 
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)
@@ -299,6 +315,16 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw)
 }
 EXPORT_SYMBOL(ieee80211_restart_hw);
 
+static void ieee80211_recalc_smps_work(struct work_struct *work)
+{
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local, recalc_smps);
+
+	mutex_lock(&local->iflist_mtx);
+	ieee80211_recalc_smps(local, NULL);
+	mutex_unlock(&local->iflist_mtx);
+}
+
 struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 					const struct ieee80211_ops *ops)
 {
@@ -372,6 +398,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	INIT_WORK(&local->restart_work, ieee80211_restart_work);
 
 	INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter);
+	INIT_WORK(&local->recalc_smps, ieee80211_recalc_smps_work);
+	local->smps_mode = IEEE80211_SMPS_OFF;
 
 	INIT_WORK(&local->dynamic_ps_enable_work,
 		  ieee80211_dynamic_ps_enable_work);
@@ -674,11 +702,19 @@ static int __init ieee80211_init(void)
 
 	ret = rc80211_pid_init();
 	if (ret)
-		return ret;
+		goto err_pid;
 
-	ieee80211_debugfs_netdev_init();
+	ret = ieee80211_iface_init();
+	if (ret)
+		goto err_netdev;
 
 	return 0;
+ err_netdev:
+	rc80211_pid_exit();
+ err_pid:
+	rc80211_minstrel_exit();
+
+	return ret;
 }
 
 static void __exit ieee80211_exit(void)
@@ -695,7 +731,7 @@ static void __exit ieee80211_exit(void)
 	if (mesh_allocated)
 		ieee80211s_stop();
 
-	ieee80211_debugfs_netdev_exit();
+	ieee80211_iface_exit();
 }
 
 

net/mac80211/mesh.c

@@ -457,7 +457,7 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata,
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 	printk(KERN_DEBUG "%s: running mesh housekeeping\n",
-	       sdata->dev->name);
+	       sdata->name);
 #endif
 
 	ieee80211_sta_expire(sdata, IEEE80211_MESH_PEER_INACTIVITY_LIMIT);
@@ -565,7 +565,7 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 
 	/* ignore ProbeResp to foreign address */
 	if (stype == IEEE80211_STYPE_PROBE_RESP &&
-	    compare_ether_addr(mgmt->da, sdata->dev->dev_addr))
+	    compare_ether_addr(mgmt->da, sdata->vif.addr))
 		return;
 
 	baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;

net/mac80211/mesh_hwmp.c

@@ -128,9 +128,9 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
 					  IEEE80211_STYPE_ACTION);
 
 	memcpy(mgmt->da, da, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	/* BSSID == SA */
-	memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
 	mgmt->u.action.category = MESH_PATH_SEL_CATEGORY;
 	mgmt->u.action.u.mesh_action.action_code = MESH_PATH_SEL_ACTION;
 
@@ -222,7 +222,7 @@ int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn,
 					  IEEE80211_STYPE_ACTION);
 
 	memcpy(mgmt->da, ra, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	/* BSSID is left zeroed, wildcard value */
 	mgmt->u.action.category = MESH_PATH_SEL_CATEGORY;
 	mgmt->u.action.u.mesh_action.action_code = MESH_PATH_SEL_ACTION;
@@ -335,7 +335,7 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
 	bool process = true;
 
 	rcu_read_lock();
-	sta = sta_info_get(local, mgmt->sa);
+	sta = sta_info_get(sdata, mgmt->sa);
 	if (!sta) {
 		rcu_read_unlock();
 		return 0;
@@ -374,7 +374,7 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
 		new_metric = MAX_METRIC;
 	exp_time = TU_TO_EXP_TIME(orig_lifetime);
 
-	if (memcmp(orig_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) {
+	if (memcmp(orig_addr, sdata->vif.addr, ETH_ALEN) == 0) {
 		/* This MP is the originator, we are not interested in this
 		 * frame, except for updating transmitter's path info.
 		 */
@@ -486,7 +486,7 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
 
 	mhwmp_dbg("received PREQ from %pM\n", orig_addr);
 
-	if (memcmp(target_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) {
+	if (memcmp(target_addr, sdata->vif.addr, ETH_ALEN) == 0) {
 		mhwmp_dbg("PREQ is for us\n");
 		forward = false;
 		reply = true;
@@ -579,7 +579,7 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata,
 	 * replies
 	 */
 	target_addr = PREP_IE_TARGET_ADDR(prep_elem);
-	if (memcmp(target_addr, sdata->dev->dev_addr, ETH_ALEN) == 0)
+	if (memcmp(target_addr, sdata->vif.addr, ETH_ALEN) == 0)
 		/* destination, no forwarding required */
 		return;
 
@@ -890,7 +890,7 @@ void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata)
 		target_flags = MP_F_RF;
 
 	spin_unlock_bh(&mpath->state_lock);
-	mesh_path_sel_frame_tx(MPATH_PREQ, 0, sdata->dev->dev_addr,
+	mesh_path_sel_frame_tx(MPATH_PREQ, 0, sdata->vif.addr,
 			cpu_to_le32(ifmsh->sn), target_flags, mpath->dst,
 			cpu_to_le32(mpath->sn), broadcast_addr, 0,
 			ttl, cpu_to_le32(lifetime), 0,
@@ -939,7 +939,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb,
 		if (time_after(jiffies,
 			       mpath->exp_time -
 			       msecs_to_jiffies(sdata->u.mesh.mshcfg.path_refresh_time)) &&
-		    !memcmp(sdata->dev->dev_addr, hdr->addr4, ETH_ALEN) &&
+		    !memcmp(sdata->vif.addr, hdr->addr4, ETH_ALEN) &&
 		    !(mpath->flags & MESH_PATH_RESOLVING) &&
 		    !(mpath->flags & MESH_PATH_FIXED)) {
 			mesh_queue_preq(mpath,
@@ -1010,7 +1010,7 @@ mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 
-	mesh_path_sel_frame_tx(MPATH_RANN, 0, sdata->dev->dev_addr,
+	mesh_path_sel_frame_tx(MPATH_RANN, 0, sdata->vif.addr,
 			       cpu_to_le32(++ifmsh->sn),
 			       0, NULL, 0, broadcast_addr,
 			       0, MESH_TTL, 0, 0, 0, sdata);

net/mac80211/mesh_pathtbl.c

@@ -260,7 +260,7 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata)
 	int err = 0;
 	u32 hash_idx;
 
-	if (memcmp(dst, sdata->dev->dev_addr, ETH_ALEN) == 0)
+	if (memcmp(dst, sdata->vif.addr, ETH_ALEN) == 0)
 		/* never add ourselves as neighbours */
 		return -ENOTSUPP;
 
@@ -377,7 +377,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata)
 	int err = 0;
 	u32 hash_idx;
 
-	if (memcmp(dst, sdata->dev->dev_addr, ETH_ALEN) == 0)
+	if (memcmp(dst, sdata->vif.addr, ETH_ALEN) == 0)
 		/* never add ourselves as neighbours */
 		return -ENOTSUPP;
 
@@ -605,7 +605,7 @@ void mesh_path_discard_frame(struct sk_buff *skb,
 	struct mesh_path *mpath;
 	u32 sn = 0;
 
-	if (memcmp(hdr->addr4, sdata->dev->dev_addr, ETH_ALEN) != 0) {
+	if (memcmp(hdr->addr4, sdata->vif.addr, ETH_ALEN) != 0) {
 		u8 *ra, *da;
 
 		da = hdr->addr3;

net/mac80211/mesh_plink.c

@@ -169,7 +169,7 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
 	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					  IEEE80211_STYPE_ACTION);
 	memcpy(mgmt->da, da, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	/* BSSID is left zeroed, wildcard value */
 	mgmt->u.action.category = MESH_PLINK_CATEGORY;
 	mgmt->u.action.u.plink_action.action_code = action;
@@ -234,7 +234,7 @@ void mesh_neighbour_update(u8 *hw_addr, u32 rates, struct ieee80211_sub_if_data
 
 	rcu_read_lock();
 
-	sta = sta_info_get(local, hw_addr);
+	sta = sta_info_get(sdata, hw_addr);
 	if (!sta) {
 		sta = mesh_plink_alloc(sdata, hw_addr, rates);
 		if (!sta) {
@@ -455,7 +455,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
 
 	rcu_read_lock();
 
-	sta = sta_info_get(local, mgmt->sa);
+	sta = sta_info_get(sdata, mgmt->sa);
 	if (!sta && ftype != PLINK_OPEN) {
 		mpl_dbg("Mesh plink: cls or cnf from unknown peer\n");
 		rcu_read_unlock();

net/mac80211/mlme.c

@@ -75,6 +75,9 @@ enum rx_mgmt_action {
 	/* caller must call cfg80211_send_disassoc() */
 	RX_MGMT_CFG80211_DISASSOC,
 
+	/* caller must tell cfg80211 about internal error */
+	RX_MGMT_CFG80211_ASSOC_ERROR,
+
 	/* caller must call cfg80211_auth_timeout() & free work */
 	RX_MGMT_CFG80211_AUTH_TO,
 
@@ -202,7 +205,7 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 		ieee80211_hw_config(local, 0);
 
 		rcu_read_lock();
-		sta = sta_info_get(local, bssid);
+		sta = sta_info_get(sdata, bssid);
 		if (sta)
 			rate_control_rate_update(local, sband, sta,
 						 IEEE80211_RC_HT_CHANGED);
@@ -248,7 +251,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 			    wk->ssid_len);
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
-		       "frame\n", sdata->dev->name);
+		       "frame\n", sdata->name);
 		return;
 	}
 	skb_reserve(skb, local->hw.extra_tx_headroom);
@@ -282,7 +285,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
 	memset(mgmt, 0, 24);
 	memcpy(mgmt->da, wk->bss->cbss.bssid, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	memcpy(mgmt->bssid, wk->bss->cbss.bssid, ETH_ALEN);
 
 	if (!is_zero_ether_addr(wk->prev_bssid)) {
@@ -398,6 +401,14 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 		__le16 tmp;
 		u32 flags = local->hw.conf.channel->flags;
 
+		/* determine capability flags */
+
+		if (ieee80211_disable_40mhz_24ghz &&
+		    sband->band == IEEE80211_BAND_2GHZ) {
+			cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+			cap &= ~IEEE80211_HT_CAP_SGI_40;
+		}
+
 		switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
 		case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
 			if (flags & IEEE80211_CHAN_NO_HT40PLUS) {
@@ -413,17 +424,64 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 			break;
 		}
 
-		tmp = cpu_to_le16(cap);
-		pos = skb_put(skb, sizeof(struct ieee80211_ht_cap)+2);
+		/* set SM PS mode properly */
+		cap &= ~IEEE80211_HT_CAP_SM_PS;
+		/* new association always uses requested smps mode */
+		if (ifmgd->req_smps == IEEE80211_SMPS_AUTOMATIC) {
+			if (ifmgd->powersave)
+				ifmgd->ap_smps = IEEE80211_SMPS_DYNAMIC;
+			else
+				ifmgd->ap_smps = IEEE80211_SMPS_OFF;
+		} else
+			ifmgd->ap_smps = ifmgd->req_smps;
+
+		switch (ifmgd->ap_smps) {
+		case IEEE80211_SMPS_AUTOMATIC:
+		case IEEE80211_SMPS_NUM_MODES:
+			WARN_ON(1);
+		case IEEE80211_SMPS_OFF:
+			cap |= WLAN_HT_CAP_SM_PS_DISABLED <<
+				IEEE80211_HT_CAP_SM_PS_SHIFT;
+			break;
+		case IEEE80211_SMPS_STATIC:
+			cap |= WLAN_HT_CAP_SM_PS_STATIC <<
+				IEEE80211_HT_CAP_SM_PS_SHIFT;
+			break;
+		case IEEE80211_SMPS_DYNAMIC:
+			cap |= WLAN_HT_CAP_SM_PS_DYNAMIC <<
+				IEEE80211_HT_CAP_SM_PS_SHIFT;
+			break;
+		}
+
+		/* reserve and fill IE */
+
+		pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
 		*pos++ = WLAN_EID_HT_CAPABILITY;
 		*pos++ = sizeof(struct ieee80211_ht_cap);
 		memset(pos, 0, sizeof(struct ieee80211_ht_cap));
+
+		/* capability flags */
+		tmp = cpu_to_le16(cap);
 		memcpy(pos, &tmp, sizeof(u16));
 		pos += sizeof(u16);
-		/* TODO: needs a define here for << 2 */
+
+		/* AMPDU parameters */
 		*pos++ = sband->ht_cap.ampdu_factor |
-			 (sband->ht_cap.ampdu_density << 2);
+			 (sband->ht_cap.ampdu_density <<
+				IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
+
+		/* MCS set */
 		memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
+		pos += sizeof(sband->ht_cap.mcs);
+
+		/* extended capabilities */
+		pos += sizeof(__le16);
+
+		/* BF capabilities */
+		pos += sizeof(__le32);
+
+		/* antenna selection */
+		pos += sizeof(u8);
 	}
 
 	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
@@ -443,7 +501,7 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for "
-		       "deauth/disassoc frame\n", sdata->dev->name);
+		       "deauth/disassoc frame\n", sdata->name);
 		return;
 	}
 	skb_reserve(skb, local->hw.extra_tx_headroom);
@@ -451,7 +509,7 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
 	memset(mgmt, 0, 24);
 	memcpy(mgmt->da, bssid, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	memcpy(mgmt->bssid, bssid, ETH_ALEN);
 	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
 	skb_put(skb, 2);
@@ -484,7 +542,7 @@ void ieee80211_send_pspoll(struct ieee80211_local *local,
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*pspoll));
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for "
-		       "pspoll frame\n", sdata->dev->name);
+		       "pspoll frame\n", sdata->name);
 		return;
 	}
 	skb_reserve(skb, local->hw.extra_tx_headroom);
@@ -499,7 +557,7 @@ void ieee80211_send_pspoll(struct ieee80211_local *local,
 	pspoll->aid |= cpu_to_le16(1 << 15 | 1 << 14);
 
 	memcpy(pspoll->bssid, ifmgd->bssid, ETH_ALEN);
-	memcpy(pspoll->ta, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(pspoll->ta, sdata->vif.addr, ETH_ALEN);
 
 	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
 	ieee80211_tx_skb(sdata, skb);
@@ -519,7 +577,7 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
-		       "frame\n", sdata->dev->name);
+		       "frame\n", sdata->name);
 		return;
 	}
 	skb_reserve(skb, local->hw.extra_tx_headroom);
@@ -532,7 +590,7 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
 		fc |= cpu_to_le16(IEEE80211_FCTL_PM);
 	nullfunc->frame_control = fc;
 	memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN);
-	memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
 	memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN);
 
 	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
@@ -940,6 +998,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 
 	mutex_lock(&local->iflist_mtx);
 	ieee80211_recalc_ps(local, -1);
+	ieee80211_recalc_smps(local, sdata);
 	mutex_unlock(&local->iflist_mtx);
 
 	netif_start_queue(sdata->dev);
@@ -956,7 +1015,7 @@ ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata,
 	wk->tries++;
 	if (wk->tries > IEEE80211_AUTH_MAX_TRIES) {
 		printk(KERN_DEBUG "%s: direct probe to AP %pM timed out\n",
-		       sdata->dev->name, wk->bss->cbss.bssid);
+		       sdata->name, wk->bss->cbss.bssid);
 
 		/*
 		 * Most likely AP is not in the range so remove the
@@ -974,7 +1033,7 @@ ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata,
 	}
 
 	printk(KERN_DEBUG "%s: direct probe to AP %pM (try %d)\n",
-			sdata->dev->name, wk->bss->cbss.bssid,
+			sdata->name, wk->bss->cbss.bssid,
 			wk->tries);
 
 	/*
@@ -1001,7 +1060,7 @@ ieee80211_authenticate(struct ieee80211_sub_if_data *sdata,
 	if (wk->tries > IEEE80211_AUTH_MAX_TRIES) {
 		printk(KERN_DEBUG "%s: authentication with AP %pM"
 		       " timed out\n",
-		       sdata->dev->name, wk->bss->cbss.bssid);
+		       sdata->name, wk->bss->cbss.bssid);
 
 		/*
 		 * Most likely AP is not in the range so remove the
@@ -1019,7 +1078,7 @@ ieee80211_authenticate(struct ieee80211_sub_if_data *sdata,
 	}
 
 	printk(KERN_DEBUG "%s: authenticate with AP %pM (try %d)\n",
-	       sdata->dev->name, wk->bss->cbss.bssid, wk->tries);
+	       sdata->name, wk->bss->cbss.bssid, wk->tries);
 
 	ieee80211_send_auth(sdata, 1, wk->auth_alg, wk->ie, wk->ie_len,
 			    wk->bss->cbss.bssid, NULL, 0, 0);
@@ -1078,7 +1137,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	netif_carrier_off(sdata->dev);
 
 	rcu_read_lock();
-	sta = sta_info_get(local, bssid);
+	sta = sta_info_get(sdata, bssid);
 	if (sta)
 		ieee80211_sta_tear_down_BA_sessions(sta);
 	rcu_read_unlock();
@@ -1115,7 +1174,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	rcu_read_lock();
 
-	sta = sta_info_get(local, bssid);
+	sta = sta_info_get(sdata, bssid);
 	if (!sta) {
 		rcu_read_unlock();
 		return;
@@ -1139,7 +1198,7 @@ ieee80211_associate(struct ieee80211_sub_if_data *sdata,
 	if (wk->tries > IEEE80211_ASSOC_MAX_TRIES) {
 		printk(KERN_DEBUG "%s: association with AP %pM"
 		       " timed out\n",
-		       sdata->dev->name, wk->bss->cbss.bssid);
+		       sdata->name, wk->bss->cbss.bssid);
 
 		/*
 		 * Most likely AP is not in the range so remove the
@@ -1157,7 +1216,7 @@ ieee80211_associate(struct ieee80211_sub_if_data *sdata,
 	}
 
 	printk(KERN_DEBUG "%s: associate with AP %pM (try %d)\n",
-	       sdata->dev->name, wk->bss->cbss.bssid, wk->tries);
+	       sdata->name, wk->bss->cbss.bssid, wk->tries);
 	ieee80211_send_assoc(sdata, wk);
 
 	wk->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT;
@@ -1218,7 +1277,7 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata,
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 	if (beacon && net_ratelimit())
 		printk(KERN_DEBUG "%s: detected beacon loss from AP "
-		       "- sending probe request\n", sdata->dev->name);
+		       "- sending probe request\n", sdata->name);
 #endif
 
 	/*
@@ -1275,7 +1334,7 @@ static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata,
 				     struct ieee80211_mgd_work *wk)
 {
 	wk->state = IEEE80211_MGD_STATE_IDLE;
-	printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name);
+	printk(KERN_DEBUG "%s: authenticated\n", sdata->name);
 }
 
 
@@ -1372,7 +1431,7 @@ ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 	reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
 
 	printk(KERN_DEBUG "%s: deauthenticated from %pM (Reason: %u)\n",
-			sdata->dev->name, bssid, reason_code);
+			sdata->name, bssid, reason_code);
 
 	if (!wk) {
 		ieee80211_set_disassoc(sdata, true);
@@ -1407,7 +1466,7 @@ ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
 	reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
 
 	printk(KERN_DEBUG "%s: disassociated from %pM (Reason: %u)\n",
-			sdata->dev->name, mgmt->sa, reason_code);
+			sdata->name, mgmt->sa, reason_code);
 
 	ieee80211_set_disassoc(sdata, false);
 	ieee80211_recalc_idle(sdata->local);
@@ -1431,8 +1490,8 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
 	u8 *pos;
 	u32 changed = 0;
-	int i, j;
-	bool have_higher_than_11mbit = false, newsta = false;
+	int i, j, err;
+	bool have_higher_than_11mbit = false;
 	u16 ap_ht_cap_flags;
 
 	/*
@@ -1452,7 +1511,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 
 	printk(KERN_DEBUG "%s: RX %sssocResp from %pM (capab=0x%x "
 	       "status=%d aid=%d)\n",
-	       sdata->dev->name, reassoc ? "Rea" : "A", mgmt->sa,
+	       sdata->name, reassoc ? "Rea" : "A", mgmt->sa,
 	       capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14))));
 
 	pos = mgmt->u.assoc_resp.variable;
@@ -1466,7 +1525,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		ms = tu * 1024 / 1000;
 		printk(KERN_DEBUG "%s: AP rejected association temporarily; "
 		       "comeback duration %u TU (%u ms)\n",
-		       sdata->dev->name, tu, ms);
+		       sdata->name, tu, ms);
 		wk->timeout = jiffies + msecs_to_jiffies(ms);
 		if (ms > IEEE80211_ASSOC_TIMEOUT)
 			run_again(ifmgd, jiffies + msecs_to_jiffies(ms));
@@ -1475,49 +1534,37 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 
 	if (status_code != WLAN_STATUS_SUCCESS) {
 		printk(KERN_DEBUG "%s: AP denied association (code=%d)\n",
-		       sdata->dev->name, status_code);
+		       sdata->name, status_code);
 		wk->state = IEEE80211_MGD_STATE_IDLE;
 		return RX_MGMT_CFG80211_ASSOC;
 	}
 
 	if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14)))
 		printk(KERN_DEBUG "%s: invalid aid value %d; bits 15:14 not "
-		       "set\n", sdata->dev->name, aid);
+		       "set\n", sdata->name, aid);
 	aid &= ~(BIT(15) | BIT(14));
 
 	if (!elems.supp_rates) {
 		printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n",
-		       sdata->dev->name);
+		       sdata->name);
 		return RX_MGMT_NONE;
 	}
 
-	printk(KERN_DEBUG "%s: associated\n", sdata->dev->name);
+	printk(KERN_DEBUG "%s: associated\n", sdata->name);
 	ifmgd->aid = aid;
 
-	rcu_read_lock();
-
-	/* Add STA entry for the AP */
-	sta = sta_info_get(local, wk->bss->cbss.bssid);
+	sta = sta_info_alloc(sdata, wk->bss->cbss.bssid, GFP_KERNEL);
 	if (!sta) {
-		newsta = true;
-
-		rcu_read_unlock();
-
-		sta = sta_info_alloc(sdata, wk->bss->cbss.bssid, GFP_KERNEL);
-		if (!sta) {
-			printk(KERN_DEBUG "%s: failed to alloc STA entry for"
-			       " the AP\n", sdata->dev->name);
-			return RX_MGMT_NONE;
-		}
-
-		set_sta_flags(sta, WLAN_STA_AUTH | WLAN_STA_ASSOC |
-				   WLAN_STA_ASSOC_AP);
-		if (!(ifmgd->flags & IEEE80211_STA_CONTROL_PORT))
-			set_sta_flags(sta, WLAN_STA_AUTHORIZED);
-
-		rcu_read_lock();
+		printk(KERN_DEBUG "%s: failed to alloc STA entry for"
+		       " the AP\n", sdata->name);
+		return RX_MGMT_CFG80211_ASSOC_ERROR;
 	}
 
+	set_sta_flags(sta, WLAN_STA_AUTH | WLAN_STA_ASSOC |
+			   WLAN_STA_ASSOC_AP);
+	if (!(ifmgd->flags & IEEE80211_STA_CONTROL_PORT))
+		set_sta_flags(sta, WLAN_STA_AUTHORIZED);
+
 	rates = 0;
 	basic_rates = 0;
 	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
@@ -1580,18 +1627,14 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	if (elems.wmm_param)
 		set_sta_flags(sta, WLAN_STA_WME);
 
-	if (newsta) {
-		int err = sta_info_insert(sta);
-		if (err) {
-			printk(KERN_DEBUG "%s: failed to insert STA entry for"
-			       " the AP (error %d)\n", sdata->dev->name, err);
-			rcu_read_unlock();
-			return RX_MGMT_NONE;
-		}
+	err = sta_info_insert(sta);
+	sta = NULL;
+	if (err) {
+		printk(KERN_DEBUG "%s: failed to insert STA entry for"
+		       " the AP (error %d)\n", sdata->name, err);
+		return RX_MGMT_CFG80211_ASSOC_ERROR;
 	}
 
-	rcu_read_unlock();
-
 	if (elems.wmm_param)
 		ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
 					 elems.wmm_param_len);
@@ -1679,7 +1722,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 
 	ASSERT_MGD_MTX(ifmgd);
 
-	if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN))
+	if (memcmp(mgmt->da, sdata->vif.addr, ETH_ALEN))
 		return; /* ignore ProbeResp to foreign address */
 
 	baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
@@ -1694,7 +1737,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 	/* direct probe may be part of the association flow */
 	if (wk && wk->state == IEEE80211_MGD_STATE_PROBE) {
 		printk(KERN_DEBUG "%s: direct probe responded\n",
-		       sdata->dev->name);
+		       sdata->name);
 		wk->tries = 0;
 		wk->state = IEEE80211_MGD_STATE_AUTH;
 		WARN_ON(ieee80211_authenticate(sdata, wk) != RX_MGMT_NONE);
@@ -1787,7 +1830,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 		if (net_ratelimit()) {
 			printk(KERN_DEBUG "%s: cancelling probereq poll due "
-			       "to a received beacon\n", sdata->dev->name);
+			       "to a received beacon\n", sdata->name);
 		}
 #endif
 		ifmgd->flags &= ~IEEE80211_STA_BEACON_POLL;
@@ -1865,7 +1908,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 
 		rcu_read_lock();
 
-		sta = sta_info_get(local, bssid);
+		sta = sta_info_get(sdata, bssid);
 		if (WARN_ON(!sta)) {
 			rcu_read_unlock();
 			return;
@@ -2036,6 +2079,10 @@ static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 	case RX_MGMT_CFG80211_DEAUTH:
 		cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
 		break;
+	case RX_MGMT_CFG80211_ASSOC_ERROR:
+		/* an internal error -- pretend timeout for now */
+		cfg80211_send_assoc_timeout(sdata->dev, mgmt->bssid);
+		break;
 	default:
 		WARN(1, "unexpected: %d", rma);
 	}
@@ -2336,6 +2383,11 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
 		ifmgd->flags |= IEEE80211_STA_WMM_ENABLED;
 
 	mutex_init(&ifmgd->mtx);
+
+	if (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
+		ifmgd->req_smps = IEEE80211_SMPS_AUTOMATIC;
+	else
+		ifmgd->req_smps = IEEE80211_SMPS_OFF;
 }
 
 /* scan finished notification */
@@ -2563,7 +2615,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
 	mutex_unlock(&ifmgd->mtx);
 
 	printk(KERN_DEBUG "%s: deauthenticating from %pM by local choice (reason=%d)\n",
-	       sdata->dev->name, bssid, req->reason_code);
+	       sdata->name, bssid, req->reason_code);
 
 	ieee80211_send_deauth_disassoc(sdata, bssid,
 			IEEE80211_STYPE_DEAUTH, req->reason_code,
@@ -2594,7 +2646,7 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
 	}
 
 	printk(KERN_DEBUG "%s: disassociating from %pM by local choice (reason=%d)\n",
-	       sdata->dev->name, req->bss->bssid, req->reason_code);
+	       sdata->name, req->bss->bssid, req->reason_code);
 
 	ieee80211_set_disassoc(sdata, false);
 

net/mac80211/pm.c

@@ -65,7 +65,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
 					     struct ieee80211_sub_if_data,
 					     u.ap);
 
-			drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE,
+			drv_sta_notify(local, sdata, STA_NOTIFY_REMOVE,
 				       &sta->sta);
 		}
 
@@ -102,7 +102,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
 
 		conf.vif = &sdata->vif;
 		conf.type = sdata->vif.type;
-		conf.mac_addr = sdata->dev->dev_addr;
+		conf.mac_addr = sdata->vif.addr;
 		drv_remove_interface(local, &conf);
 	}
 

net/mac80211/rx.c

@@ -283,15 +283,15 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 	skb->protocol = htons(ETH_P_802_2);
 
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-		if (!netif_running(sdata->dev))
-			continue;
-
 		if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
 			continue;
 
 		if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES)
 			continue;
 
+		if (!netif_running(sdata->dev))
+			continue;
+
 		if (prev_dev) {
 			skb2 = skb_clone(skb, GFP_ATOMIC);
 			if (skb2) {
@@ -361,7 +361,9 @@ static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
  * boundary. In the case of regular frames, this simply means aligning the
  * payload to a four-byte boundary (because either the IP header is directly
  * contained, or IV/RFC1042 headers that have a length divisible by four are
- * in front of it).
+ * in front of it).  If the payload data is not properly aligned and the
+ * architecture doesn't support efficient unaligned operations, mac80211
+ * will align the data.
  *
  * With A-MSDU frames, however, the payload data address must yield two modulo
  * four because there are 14-byte 802.3 headers within the A-MSDU frames that
@@ -375,25 +377,10 @@ static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
  */
 static void ieee80211_verify_alignment(struct ieee80211_rx_data *rx)
 {
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
-	int hdrlen;
-
-#ifndef CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT
-	return;
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+	WARN_ONCE((unsigned long)rx->skb->data & 1,
+		  "unaligned packet at 0x%p\n", rx->skb->data);
 #endif
-
-	if (WARN_ONCE((unsigned long)rx->skb->data & 1,
-		      "unaligned packet at 0x%p\n", rx->skb->data))
-		return;
-
-	if (!ieee80211_is_data_present(hdr->frame_control))
-		return;
-
-	hdrlen = ieee80211_hdrlen(hdr->frame_control);
-	if (rx->flags & IEEE80211_RX_AMSDU)
-		hdrlen += ETH_HLEN;
-	WARN_ONCE(((unsigned long)(rx->skb->data + hdrlen)) & 3,
-		  "unaligned IP payload at 0x%p\n", rx->skb->data + hdrlen);
 }
 
 
@@ -476,7 +463,7 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
 	unsigned int hdrlen = ieee80211_hdrlen(hdr->frame_control);
-	char *dev_addr = rx->sdata->dev->dev_addr;
+	char *dev_addr = rx->sdata->vif.addr;
 
 	if (ieee80211_is_data(hdr->frame_control)) {
 		if (is_multicast_ether_addr(hdr->addr1)) {
@@ -1021,10 +1008,10 @@ static void ap_sta_ps_start(struct sta_info *sta)
 
 	atomic_inc(&sdata->bss->num_sta_ps);
 	set_sta_flags(sta, WLAN_STA_PS_STA);
-	drv_sta_notify(local, &sdata->vif, STA_NOTIFY_SLEEP, &sta->sta);
+	drv_sta_notify(local, sdata, STA_NOTIFY_SLEEP, &sta->sta);
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 	printk(KERN_DEBUG "%s: STA %pM aid %d enters power save mode\n",
-	       sdata->dev->name, sta->sta.addr, sta->sta.aid);
+	       sdata->name, sta->sta.addr, sta->sta.aid);
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
 }
 
@@ -1038,13 +1025,13 @@ static void ap_sta_ps_end(struct sta_info *sta)
 
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 	printk(KERN_DEBUG "%s: STA %pM aid %d exits power save mode\n",
-	       sdata->dev->name, sta->sta.addr, sta->sta.aid);
+	       sdata->name, sta->sta.addr, sta->sta.aid);
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
 
 	if (test_sta_flags(sta, WLAN_STA_PS_DRIVER)) {
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 		printk(KERN_DEBUG "%s: STA %pM aid %d driver-ps-blocked\n",
-		       sdata->dev->name, sta->sta.addr, sta->sta.aid);
+		       sdata->name, sta->sta.addr, sta->sta.aid);
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
 		return;
 	}
@@ -1156,7 +1143,7 @@ ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata,
 		printk(KERN_DEBUG "%s: RX reassembly removed oldest "
 		       "fragment entry (idx=%d age=%lu seq=%d last_frag=%d "
 		       "addr1=%pM addr2=%pM\n",
-		       sdata->dev->name, idx,
+		       sdata->name, idx,
 		       jiffies - entry->first_frag_time, entry->seq,
 		       entry->last_frag, hdr->addr1, hdr->addr2);
 #endif
@@ -1424,7 +1411,6 @@ static int
 __ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_sub_if_data *sdata = rx->sdata;
-	struct net_device *dev = sdata->dev;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
 
 	if (ieee80211_has_a4(hdr->frame_control) &&
@@ -1436,7 +1422,7 @@ __ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
 	     (sdata->vif.type == NL80211_IFTYPE_STATION && sdata->u.mgd.use_4addr)))
 		return -1;
 
-	return ieee80211_data_to_8023(rx->skb, dev->dev_addr, sdata->vif.type);
+	return ieee80211_data_to_8023(rx->skb, sdata->vif.addr, sdata->vif.type);
 }
 
 /*
@@ -1453,7 +1439,7 @@ static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx, __le16 fc)
 	 * of whether the frame was encrypted or not.
 	 */
 	if (ehdr->h_proto == htons(ETH_P_PAE) &&
-	    (compare_ether_addr(ehdr->h_dest, rx->sdata->dev->dev_addr) == 0 ||
+	    (compare_ether_addr(ehdr->h_dest, rx->sdata->vif.addr) == 0 ||
 	     compare_ether_addr(ehdr->h_dest, pae_group_addr) == 0))
 		return true;
 
@@ -1472,7 +1458,6 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_sub_if_data *sdata = rx->sdata;
 	struct net_device *dev = sdata->dev;
-	struct ieee80211_local *local = rx->local;
 	struct sk_buff *skb, *xmit_skb;
 	struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data;
 	struct sta_info *dsta;
@@ -1495,8 +1480,8 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
 				printk(KERN_DEBUG "%s: failed to clone "
 				       "multicast frame\n", dev->name);
 		} else {
-			dsta = sta_info_get(local, skb->data);
-			if (dsta && dsta->sdata->dev == dev) {
+			dsta = sta_info_get(sdata, skb->data);
+			if (dsta) {
 				/*
 				 * The destination station is associated to
 				 * this AP (in this VLAN), so send the frame
@@ -1512,7 +1497,7 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
 	if (skb) {
 		int align __maybe_unused;
 
-#if defined(CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT) || !defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 		/*
 		 * 'align' will only take the values 0 or 2 here
 		 * since all frames are required to be aligned
@@ -1556,16 +1541,10 @@ static ieee80211_rx_result debug_noinline
 ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
 {
 	struct net_device *dev = rx->sdata->dev;
-	struct ieee80211_local *local = rx->local;
-	u16 ethertype;
-	u8 *payload;
-	struct sk_buff *skb = rx->skb, *frame = NULL;
+	struct sk_buff *skb = rx->skb;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	__le16 fc = hdr->frame_control;
-	const struct ethhdr *eth;
-	int remaining, err;
-	u8 dst[ETH_ALEN];
-	u8 src[ETH_ALEN];
+	struct sk_buff_head frame_list;
 
 	if (unlikely(!ieee80211_is_data(fc)))
 		return RX_CONTINUE;
@@ -1576,94 +1555,34 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
 	if (!(rx->flags & IEEE80211_RX_AMSDU))
 		return RX_CONTINUE;
 
-	err = __ieee80211_data_to_8023(rx);
-	if (unlikely(err))
+	if (ieee80211_has_a4(hdr->frame_control) &&
+	    rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
+	    !rx->sdata->u.vlan.sta)
 		return RX_DROP_UNUSABLE;
 
-	skb->dev = dev;
-
-	dev->stats.rx_packets++;
-	dev->stats.rx_bytes += skb->len;
-
-	/* skip the wrapping header */
-	eth = (struct ethhdr *) skb_pull(skb, sizeof(struct ethhdr));
-	if (!eth)
+	if (is_multicast_ether_addr(hdr->addr1) &&
+	    ((rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
+	      rx->sdata->u.vlan.sta) ||
+	     (rx->sdata->vif.type == NL80211_IFTYPE_STATION &&
+	      rx->sdata->u.mgd.use_4addr)))
 		return RX_DROP_UNUSABLE;
 
-	while (skb != frame) {
-		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);
-
-		padding = ((4 - subframe_len) & 0x3);
-		/* the last MSDU has no padding */
-		if (subframe_len > remaining)
-			return RX_DROP_UNUSABLE;
+	skb->dev = dev;
+	__skb_queue_head_init(&frame_list);
 
-		skb_pull(skb, sizeof(struct ethhdr));
-		/* if last subframe reuse skb */
-		if (remaining <= subframe_len + padding)
-			frame = skb;
-		else {
-			/*
-			 * Allocate and reserve two bytes more for payload
-			 * alignment since sizeof(struct ethhdr) is 14.
-			 */
-			frame = dev_alloc_skb(
-				ALIGN(local->hw.extra_tx_headroom, 4) +
-				subframe_len + 2);
-
-			if (frame == NULL)
-				return RX_DROP_UNUSABLE;
-
-			skb_reserve(frame,
-				    ALIGN(local->hw.extra_tx_headroom, 4) +
-				    sizeof(struct ethhdr) + 2);
-			memcpy(skb_put(frame, ntohs(len)), skb->data,
-				ntohs(len));
-
-			eth = (struct ethhdr *) skb_pull(skb, ntohs(len) +
-							padding);
-			if (!eth) {
-				dev_kfree_skb(frame);
-				return RX_DROP_UNUSABLE;
-			}
-		}
+	ieee80211_amsdu_to_8023s(skb, &frame_list, dev->dev_addr,
+				 rx->sdata->vif.type,
+				 rx->local->hw.extra_tx_headroom);
 
-		skb_reset_network_header(frame);
-		frame->dev = dev;
-		frame->priority = skb->priority;
-		rx->skb = frame;
-
-		payload = frame->data;
-		ethertype = (payload[6] << 8) | payload[7];
-
-		if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
-			    ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
-			   compare_ether_addr(payload,
-					      bridge_tunnel_header) == 0)) {
-			/* remove RFC1042 or Bridge-Tunnel
-			 * encapsulation and replace EtherType */
-			skb_pull(frame, 6);
-			memcpy(skb_push(frame, ETH_ALEN), src, ETH_ALEN);
-			memcpy(skb_push(frame, ETH_ALEN), dst, ETH_ALEN);
-		} else {
-			memcpy(skb_push(frame, sizeof(__be16)),
-			       &len, sizeof(__be16));
-			memcpy(skb_push(frame, ETH_ALEN), src, ETH_ALEN);
-			memcpy(skb_push(frame, ETH_ALEN), dst, ETH_ALEN);
-		}
+	while (!skb_queue_empty(&frame_list)) {
+		rx->skb = __skb_dequeue(&frame_list);
 
 		if (!ieee80211_frame_allowed(rx, fc)) {
-			if (skb == frame) /* last frame */
-				return RX_DROP_UNUSABLE;
-			dev_kfree_skb(frame);
+			dev_kfree_skb(rx->skb);
 			continue;
 		}
+		dev->stats.rx_packets++;
+		dev->stats.rx_bytes += rx->skb->len;
 
 		ieee80211_deliver_skb(rx);
 	}
@@ -1721,7 +1640,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 
 	/* Frame has reached destination.  Don't forward */
 	if (!is_multicast_ether_addr(hdr->addr1) &&
-	    compare_ether_addr(sdata->dev->dev_addr, hdr->addr3) == 0)
+	    compare_ether_addr(sdata->vif.addr, hdr->addr3) == 0)
 		return RX_CONTINUE;
 
 	mesh_hdr->ttl--;
@@ -1738,10 +1657,10 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 
 			if (!fwd_skb && net_ratelimit())
 				printk(KERN_DEBUG "%s: failed to clone mesh frame\n",
-						   sdata->dev->name);
+						   sdata->name);
 
 			fwd_hdr =  (struct ieee80211_hdr *) fwd_skb->data;
-			memcpy(fwd_hdr->addr2, sdata->dev->dev_addr, ETH_ALEN);
+			memcpy(fwd_hdr->addr2, sdata->vif.addr, ETH_ALEN);
 			info = IEEE80211_SKB_CB(fwd_skb);
 			memset(info, 0, sizeof(*info));
 			info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
@@ -1870,7 +1789,7 @@ static void ieee80211_process_sa_query_req(struct ieee80211_sub_if_data *sdata,
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *resp;
 
-	if (compare_ether_addr(mgmt->da, sdata->dev->dev_addr) != 0) {
+	if (compare_ether_addr(mgmt->da, sdata->vif.addr) != 0) {
 		/* Not to own unicast address */
 		return;
 	}
@@ -1894,7 +1813,7 @@ static void ieee80211_process_sa_query_req(struct ieee80211_sub_if_data *sdata,
 	resp = (struct ieee80211_mgmt *) skb_put(skb, 24);
 	memset(resp, 0, 24);
 	memcpy(resp->da, mgmt->sa, ETH_ALEN);
-	memcpy(resp->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(resp->sa, sdata->vif.addr, ETH_ALEN);
 	memcpy(resp->bssid, sdata->u.mgd.bssid, ETH_ALEN);
 	resp->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					  IEEE80211_STYPE_ACTION);
@@ -2274,7 +2193,7 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 		if (!bssid && !sdata->u.mgd.use_4addr)
 			return 0;
 		if (!multicast &&
-		    compare_ether_addr(sdata->dev->dev_addr, hdr->addr1) != 0) {
+		    compare_ether_addr(sdata->vif.addr, hdr->addr1) != 0) {
 			if (!(sdata->dev->flags & IFF_PROMISC))
 				return 0;
 			rx->flags &= ~IEEE80211_RX_RA_MATCH;
@@ -2291,7 +2210,7 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 				return 0;
 			rx->flags &= ~IEEE80211_RX_RA_MATCH;
 		} else if (!multicast &&
-			   compare_ether_addr(sdata->dev->dev_addr,
+			   compare_ether_addr(sdata->vif.addr,
 					      hdr->addr1) != 0) {
 			if (!(sdata->dev->flags & IFF_PROMISC))
 				return 0;
@@ -2308,7 +2227,7 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 		break;
 	case NL80211_IFTYPE_MESH_POINT:
 		if (!multicast &&
-		    compare_ether_addr(sdata->dev->dev_addr,
+		    compare_ether_addr(sdata->vif.addr,
 				       hdr->addr1) != 0) {
 			if (!(sdata->dev->flags & IFF_PROMISC))
 				return 0;
@@ -2319,11 +2238,11 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 	case NL80211_IFTYPE_AP_VLAN:
 	case NL80211_IFTYPE_AP:
 		if (!bssid) {
-			if (compare_ether_addr(sdata->dev->dev_addr,
+			if (compare_ether_addr(sdata->vif.addr,
 					       hdr->addr1))
 				return 0;
 		} else if (!ieee80211_bssid_match(bssid,
-					sdata->dev->dev_addr)) {
+					sdata->vif.addr)) {
 			if (!(rx->flags & IEEE80211_RX_IN_SCAN))
 				return 0;
 			rx->flags &= ~IEEE80211_RX_RA_MATCH;
@@ -2362,6 +2281,8 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
 	int prepares;
 	struct ieee80211_sub_if_data *prev = NULL;
 	struct sk_buff *skb_new;
+	struct sta_info *sta, *tmp;
+	bool found_sta = false;
 
 	hdr = (struct ieee80211_hdr *)skb->data;
 	memset(&rx, 0, sizeof(rx));
@@ -2378,68 +2299,76 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
 	ieee80211_parse_qos(&rx);
 	ieee80211_verify_alignment(&rx);
 
-	rx.sta = sta_info_get(local, hdr->addr2);
-	if (rx.sta)
-		rx.sdata = rx.sta->sdata;
-
-	if (rx.sdata && ieee80211_is_data(hdr->frame_control)) {
-		rx.flags |= IEEE80211_RX_RA_MATCH;
-		prepares = prepare_for_handlers(rx.sdata, &rx, hdr);
-		if (prepares) {
-			if (status->flag & RX_FLAG_MMIC_ERROR) {
-				if (rx.flags & IEEE80211_RX_RA_MATCH)
-					ieee80211_rx_michael_mic_report(hdr, &rx);
-			} else
-				prev = rx.sdata;
+	if (ieee80211_is_data(hdr->frame_control)) {
+		for_each_sta_info(local, hdr->addr2, sta, tmp) {
+			rx.sta = sta;
+			found_sta = true;
+			rx.sdata = sta->sdata;
+
+			rx.flags |= IEEE80211_RX_RA_MATCH;
+			prepares = prepare_for_handlers(rx.sdata, &rx, hdr);
+			if (prepares) {
+				if (status->flag & RX_FLAG_MMIC_ERROR) {
+					if (rx.flags & IEEE80211_RX_RA_MATCH)
+						ieee80211_rx_michael_mic_report(hdr, &rx);
+				} else
+					prev = rx.sdata;
+			}
 		}
-	} else list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-		if (!netif_running(sdata->dev))
-			continue;
+	}
+	if (!found_sta) {
+		list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+			if (!netif_running(sdata->dev))
+				continue;
 
-		if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
-		    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
-			continue;
+			if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
+			    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+				continue;
 
-		rx.flags |= IEEE80211_RX_RA_MATCH;
-		prepares = prepare_for_handlers(sdata, &rx, hdr);
+			rx.sta = sta_info_get(sdata, hdr->addr2);
 
-		if (!prepares)
-			continue;
+			rx.flags |= IEEE80211_RX_RA_MATCH;
+			prepares = prepare_for_handlers(sdata, &rx, hdr);
 
-		if (status->flag & RX_FLAG_MMIC_ERROR) {
-			rx.sdata = sdata;
-			if (rx.flags & IEEE80211_RX_RA_MATCH)
-				ieee80211_rx_michael_mic_report(hdr, &rx);
-			continue;
-		}
+			if (!prepares)
+				continue;
 
-		/*
-		 * frame is destined for this interface, but if it's not
-		 * also for the previous one we handle that after the
-		 * loop to avoid copying the SKB once too much
-		 */
+			if (status->flag & RX_FLAG_MMIC_ERROR) {
+				rx.sdata = sdata;
+				if (rx.flags & IEEE80211_RX_RA_MATCH)
+					ieee80211_rx_michael_mic_report(hdr,
+									&rx);
+				continue;
+			}
 
-		if (!prev) {
-			prev = sdata;
-			continue;
-		}
+			/*
+			 * frame is destined for this interface, but if it's
+			 * not also for the previous one we handle that after
+			 * the loop to avoid copying the SKB once too much
+			 */
 
-		/*
-		 * frame was destined for the previous interface
-		 * so invoke RX handlers for it
-		 */
+			if (!prev) {
+				prev = sdata;
+				continue;
+			}
 
-		skb_new = skb_copy(skb, GFP_ATOMIC);
-		if (!skb_new) {
-			if (net_ratelimit())
-				printk(KERN_DEBUG "%s: failed to copy "
-				       "multicast frame for %s\n",
-				       wiphy_name(local->hw.wiphy),
-				       prev->dev->name);
-			continue;
+			/*
+			 * frame was destined for the previous interface
+			 * so invoke RX handlers for it
+			 */
+
+			skb_new = skb_copy(skb, GFP_ATOMIC);
+			if (!skb_new) {
+				if (net_ratelimit())
+					printk(KERN_DEBUG "%s: failed to copy "
+					       "multicast frame for %s\n",
+					       wiphy_name(local->hw.wiphy),
+					       prev->name);
+				continue;
+			}
+			ieee80211_invoke_rx_handlers(prev, &rx, skb_new, rate);
+			prev = sdata;
 		}
-		ieee80211_invoke_rx_handlers(prev, &rx, skb_new, rate);
-		prev = sdata;
 	}
 	if (prev)
 		ieee80211_invoke_rx_handlers(prev, &rx, skb, rate);

net/mac80211/scan.c

@@ -147,7 +147,7 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
 	presp = ieee80211_is_probe_resp(fc);
 	if (presp) {
 		/* ignore ProbeResp to foreign address */
-		if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN))
+		if (memcmp(mgmt->da, sdata->vif.addr, ETH_ALEN))
 			return RX_DROP_MONITOR;
 
 		presp = true;

net/mac80211/spectmgmt.c

@@ -35,7 +35,7 @@ static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_da
 
 	if (!skb) {
 		printk(KERN_ERR "%s: failed to allocate buffer for "
-				"measurement report frame\n", sdata->dev->name);
+				"measurement report frame\n", sdata->name);
 		return;
 	}
 
@@ -43,7 +43,7 @@ static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_da
 	msr_report = (struct ieee80211_mgmt *)skb_put(skb, 24);
 	memset(msr_report, 0, 24);
 	memcpy(msr_report->da, da, ETH_ALEN);
-	memcpy(msr_report->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(msr_report->sa, sdata->vif.addr, ETH_ALEN);
 	memcpy(msr_report->bssid, bssid, ETH_ALEN);
 	msr_report->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 						IEEE80211_STYPE_ACTION);

net/mac80211/sta_info.c

@@ -103,13 +103,16 @@ static int sta_info_hash_del(struct ieee80211_local *local,
 }
 
 /* protected by RCU */
-struct sta_info *sta_info_get(struct ieee80211_local *local, const u8 *addr)
+struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata,
+			      const u8 *addr)
 {
+	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 
 	sta = rcu_dereference(local->sta_hash[STA_HASH(addr)]);
 	while (sta) {
-		if (memcmp(sta->sta.addr, addr, ETH_ALEN) == 0)
+		if (sta->sdata == sdata &&
+		    memcmp(sta->sta.addr, addr, ETH_ALEN) == 0)
 			break;
 		sta = rcu_dereference(sta->hnext);
 	}
@@ -369,7 +372,7 @@ int sta_info_insert(struct sta_info *sta)
 		goto out_free;
 	}
 
-	if (WARN_ON(compare_ether_addr(sta->sta.addr, sdata->dev->dev_addr) == 0 ||
+	if (WARN_ON(compare_ether_addr(sta->sta.addr, sdata->vif.addr) == 0 ||
 		    is_multicast_ether_addr(sta->sta.addr))) {
 		err = -EINVAL;
 		goto out_free;
@@ -377,7 +380,7 @@ int sta_info_insert(struct sta_info *sta)
 
 	spin_lock_irqsave(&local->sta_lock, flags);
 	/* check if STA exists already */
-	if (sta_info_get(local, sta->sta.addr)) {
+	if (sta_info_get(sdata, sta->sta.addr)) {
 		spin_unlock_irqrestore(&local->sta_lock, flags);
 		err = -EEXIST;
 		goto out_free;
@@ -394,7 +397,7 @@ int sta_info_insert(struct sta_info *sta)
 					     struct ieee80211_sub_if_data,
 					     u.ap);
 
-		drv_sta_notify(local, &sdata->vif, STA_NOTIFY_ADD, &sta->sta);
+		drv_sta_notify(local, sdata, STA_NOTIFY_ADD, &sta->sta);
 		sdata = sta->sdata;
 	}
 
@@ -534,7 +537,7 @@ static void __sta_info_unlink(struct sta_info **sta)
 					     struct ieee80211_sub_if_data,
 					     u.ap);
 
-		drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE,
+		drv_sta_notify(local, sdata, STA_NOTIFY_REMOVE,
 			       &(*sta)->sta);
 		sdata = (*sta)->sdata;
 	}
@@ -828,7 +831,7 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
 		if (time_after(jiffies, sta->last_rx + exp_time)) {
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 			printk(KERN_DEBUG "%s: expiring inactive STA %pM\n",
-			       sdata->dev->name, sta->sta.addr);
+			       sdata->name, sta->sta.addr);
 #endif
 			__sta_info_unlink(&sta);
 			if (sta)
@@ -843,11 +846,12 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
 struct ieee80211_sta *ieee80211_find_sta_by_hw(struct ieee80211_hw *hw,
 					       const u8 *addr)
 {
-	struct sta_info *sta = sta_info_get(hw_to_local(hw), addr);
+	struct sta_info *sta, *nxt;
 
-	if (!sta)
-		return NULL;
-	return &sta->sta;
+	/* Just return a random station ... first in list ... */
+	for_each_sta_info(hw_to_local(hw), addr, sta, nxt)
+		return &sta->sta;
+	return NULL;
 }
 EXPORT_SYMBOL_GPL(ieee80211_find_sta_by_hw);
 
@@ -872,7 +876,7 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
 	struct ieee80211_local *local = sdata->local;
 	int sent, buffered;
 
-	drv_sta_notify(local, &sdata->vif, STA_NOTIFY_AWAKE, &sta->sta);
+	drv_sta_notify(local, sdata, STA_NOTIFY_AWAKE, &sta->sta);
 
 	if (!skb_queue_empty(&sta->ps_tx_buf))
 		sta_info_clear_tim_bit(sta);
@@ -885,7 +889,7 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
 
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 	printk(KERN_DEBUG "%s: STA %pM aid %d sending %d filtered/%d PS frames "
-	       "since STA not sleeping anymore\n", sdata->dev->name,
+	       "since STA not sleeping anymore\n", sdata->name,
 	       sta->sta.addr, sta->sta.aid, sent - buffered, buffered);
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
 }
@@ -944,7 +948,7 @@ void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta)
 		 */
 		printk(KERN_DEBUG "%s: STA %pM sent PS Poll even "
 		       "though there are no buffered frames for it\n",
-		       sdata->dev->name, sta->sta.addr);
+		       sdata->name, sta->sta.addr);
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
 	}
 }