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

drivers/net/wireless/ath9k/main.c

@@ -224,7 +224,7 @@ static void setup_ht_cap(struct ieee80211_ht_info *ht_info)
 
 	ht_info->ht_supported = 1;
 	ht_info->cap = (u16)IEEE80211_HT_CAP_SUP_WIDTH
-			|(u16)IEEE80211_HT_CAP_MIMO_PS
+			|(u16)IEEE80211_HT_CAP_SM_PS
 			|(u16)IEEE80211_HT_CAP_SGI_40
 			|(u16)IEEE80211_HT_CAP_DSSSCCK40;
 

drivers/net/wireless/b43/b43.h

@@ -585,8 +585,6 @@ enum {
 struct b43_qos_params {
 	/* The QOS parameters */
 	struct ieee80211_tx_queue_params p;
-	/* Does this need to get uploaded to hardware? */
-	bool need_hw_update;
 };
 
 struct b43_wldev;
@@ -648,11 +646,8 @@ struct b43_wl {
 	bool beacon_templates_virgin; /* Never wrote the templates? */
 	struct work_struct beacon_update_trigger;
 
-	/* The current QOS parameters for the 4 queues.
-	 * This is protected by the irq_lock. */
+	/* The current QOS parameters for the 4 queues. */
 	struct b43_qos_params qos_params[4];
-	/* Workqueue for updating QOS parameters in hardware. */
-	struct work_struct qos_update_work;
 
 	/* Work for adjustment of the transmission power.
 	 * This is scheduled when we determine that the actual TX output

drivers/net/wireless/b43/main.c

@@ -3059,36 +3059,31 @@ static void b43_qos_params_upload(struct b43_wldev *dev,
 	}
 }
 
-/* Update the QOS parameters in hardware. */
-static void b43_qos_update(struct b43_wldev *dev)
+/* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */
+static const u16 b43_qos_shm_offsets[] = {
+	/* [mac80211-queue-nr] = SHM_OFFSET, */
+	[0] = B43_QOS_VOICE,
+	[1] = B43_QOS_VIDEO,
+	[2] = B43_QOS_BESTEFFORT,
+	[3] = B43_QOS_BACKGROUND,
+};
+
+/* Update all QOS parameters in hardware. */
+static void b43_qos_upload_all(struct b43_wldev *dev)
 {
 	struct b43_wl *wl = dev->wl;
 	struct b43_qos_params *params;
-	unsigned long flags;
 	unsigned int i;
 
-	/* Mapping of mac80211 queues to b43 SHM offsets. */
-	static const u16 qos_shm_offsets[] = {
-		[0] = B43_QOS_VOICE,
-		[1] = B43_QOS_VIDEO,
-		[2] = B43_QOS_BESTEFFORT,
-		[3] = B43_QOS_BACKGROUND,
-	};
-	BUILD_BUG_ON(ARRAY_SIZE(qos_shm_offsets) != ARRAY_SIZE(wl->qos_params));
+	BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
+		     ARRAY_SIZE(wl->qos_params));
 
 	b43_mac_suspend(dev);
-	spin_lock_irqsave(&wl->irq_lock, flags);
-
 	for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
 		params = &(wl->qos_params[i]);
-		if (params->need_hw_update) {
-			b43_qos_params_upload(dev, &(params->p),
-					      qos_shm_offsets[i]);
-			params->need_hw_update = 0;
-		}
+		b43_qos_params_upload(dev, &(params->p),
+				      b43_qos_shm_offsets[i]);
 	}
-
-	spin_unlock_irqrestore(&wl->irq_lock, flags);
 	b43_mac_enable(dev);
 }
 
@@ -3097,25 +3092,50 @@ static void b43_qos_clear(struct b43_wl *wl)
 	struct b43_qos_params *params;
 	unsigned int i;
 
+	/* Initialize QoS parameters to sane defaults. */
+
+	BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
+		     ARRAY_SIZE(wl->qos_params));
+
 	for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
 		params = &(wl->qos_params[i]);
 
-		memset(&(params->p), 0, sizeof(params->p));
-		params->p.aifs = -1;
-		params->need_hw_update = 1;
+		switch (b43_qos_shm_offsets[i]) {
+		case B43_QOS_VOICE:
+			params->p.txop = 0;
+			params->p.aifs = 2;
+			params->p.cw_min = 0x0001;
+			params->p.cw_max = 0x0001;
+			break;
+		case B43_QOS_VIDEO:
+			params->p.txop = 0;
+			params->p.aifs = 2;
+			params->p.cw_min = 0x0001;
+			params->p.cw_max = 0x0001;
+			break;
+		case B43_QOS_BESTEFFORT:
+			params->p.txop = 0;
+			params->p.aifs = 3;
+			params->p.cw_min = 0x0001;
+			params->p.cw_max = 0x03FF;
+			break;
+		case B43_QOS_BACKGROUND:
+			params->p.txop = 0;
+			params->p.aifs = 7;
+			params->p.cw_min = 0x0001;
+			params->p.cw_max = 0x03FF;
+			break;
+		default:
+			B43_WARN_ON(1);
+		}
 	}
 }
 
 /* Initialize the core's QOS capabilities */
 static void b43_qos_init(struct b43_wldev *dev)
 {
-	struct b43_wl *wl = dev->wl;
-	unsigned int i;
-
 	/* Upload the current QOS parameters. */
-	for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++)
-		wl->qos_params[i].need_hw_update = 1;
-	b43_qos_update(dev);
+	b43_qos_upload_all(dev);
 
 	/* Enable QOS support. */
 	b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
@@ -3124,25 +3144,13 @@ static void b43_qos_init(struct b43_wldev *dev)
 		    | B43_MMIO_IFSCTL_USE_EDCF);
 }
 
-static void b43_qos_update_work(struct work_struct *work)
-{
-	struct b43_wl *wl = container_of(work, struct b43_wl, qos_update_work);
-	struct b43_wldev *dev;
-
-	mutex_lock(&wl->mutex);
-	dev = wl->current_dev;
-	if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED)))
-		b43_qos_update(dev);
-	mutex_unlock(&wl->mutex);
-}
-
 static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue,
 			  const struct ieee80211_tx_queue_params *params)
 {
 	struct b43_wl *wl = hw_to_b43_wl(hw);
-	unsigned long flags;
+	struct b43_wldev *dev;
 	unsigned int queue = (unsigned int)_queue;
-	struct b43_qos_params *p;
+	int err = -ENODEV;
 
 	if (queue >= ARRAY_SIZE(wl->qos_params)) {
 		/* Queue not available or don't support setting
@@ -3150,16 +3158,25 @@ static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue,
 		 * confuse mac80211. */
 		return 0;
 	}
+	BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
+		     ARRAY_SIZE(wl->qos_params));
 
-	spin_lock_irqsave(&wl->irq_lock, flags);
-	p = &(wl->qos_params[queue]);
-	memcpy(&(p->p), params, sizeof(p->p));
-	p->need_hw_update = 1;
-	spin_unlock_irqrestore(&wl->irq_lock, flags);
+	mutex_lock(&wl->mutex);
+	dev = wl->current_dev;
+	if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED)))
+		goto out_unlock;
 
-	queue_work(hw->workqueue, &wl->qos_update_work);
+	memcpy(&(wl->qos_params[queue].p), params, sizeof(*params));
+	b43_mac_suspend(dev);
+	b43_qos_params_upload(dev, &(wl->qos_params[queue].p),
+			      b43_qos_shm_offsets[queue]);
+	b43_mac_enable(dev);
+	err = 0;
 
-	return 0;
+out_unlock:
+	mutex_unlock(&wl->mutex);
+
+	return err;
 }
 
 static int b43_op_get_tx_stats(struct ieee80211_hw *hw,
@@ -4186,7 +4203,6 @@ static void b43_op_stop(struct ieee80211_hw *hw)
 	struct b43_wldev *dev = wl->current_dev;
 
 	b43_rfkill_exit(dev);
-	cancel_work_sync(&(wl->qos_update_work));
 	cancel_work_sync(&(wl->beacon_update_trigger));
 
 	mutex_lock(&wl->mutex);
@@ -4585,7 +4601,6 @@ static int b43_wireless_init(struct ssb_device *dev)
 	spin_lock_init(&wl->shm_lock);
 	mutex_init(&wl->mutex);
 	INIT_LIST_HEAD(&wl->devlist);
-	INIT_WORK(&wl->qos_update_work, b43_qos_update_work);
 	INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work);
 	INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work);
 

drivers/net/wireless/b43/phy_g.c

@@ -386,7 +386,6 @@ static void b43_set_original_gains(struct b43_wldev *dev)
 void b43_nrssi_hw_write(struct b43_wldev *dev, u16 offset, s16 val)
 {
 	b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
-	mmiowb();
 	b43_phy_write(dev, B43_PHY_NRSSILT_DATA, (u16) val);
 }
 

drivers/net/wireless/b43legacy/phy.c

@@ -595,12 +595,14 @@ static void b43legacy_phy_initb5(struct b43legacy_wldev *dev)
 				    0x0035) & 0xFFC0) | 0x0064);
 		b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev,
 				    0x005D) & 0xFF80) | 0x000A);
+		b43legacy_phy_write(dev, 0x5B, 0x0000);
+		b43legacy_phy_write(dev, 0x5C, 0x0000);
 	}
 
 	if (dev->bad_frames_preempt)
 		b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
 				    b43legacy_phy_read(dev,
-				    B43legacy_PHY_RADIO_BITFIELD) | (1 << 11));
+				    B43legacy_PHY_RADIO_BITFIELD) | (1 << 12));
 
 	if (phy->analog == 1) {
 		b43legacy_phy_write(dev, 0x0026, 0xCE00);
@@ -753,7 +755,7 @@ static void b43legacy_phy_initb6(struct b43legacy_wldev *dev)
 		b43legacy_radio_write16(dev, 0x0050, 0x0020);
 	}
 	if (phy->radio_rev <= 2) {
-		b43legacy_radio_write16(dev, 0x007C, 0x0020);
+		b43legacy_radio_write16(dev, 0x0050, 0x0020);
 		b43legacy_radio_write16(dev, 0x005A, 0x0070);
 		b43legacy_radio_write16(dev, 0x005B, 0x007B);
 		b43legacy_radio_write16(dev, 0x005C, 0x00B0);
@@ -771,7 +773,7 @@ static void b43legacy_phy_initb6(struct b43legacy_wldev *dev)
 		b43legacy_phy_write(dev, 0x002A, 0x8AC0);
 	b43legacy_phy_write(dev, 0x0038, 0x0668);
 	b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
-	if (phy->radio_rev <= 5)
+	if (phy->radio_rev == 4 || phy->radio_rev == 5)
 		b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev,
 				    0x005D) & 0xFF80) | 0x0003);
 	if (phy->radio_rev <= 2)
@@ -1010,7 +1012,7 @@ static void b43legacy_phy_initg(struct b43legacy_wldev *dev)
 		b43legacy_phy_initb5(dev);
 	else
 		b43legacy_phy_initb6(dev);
-	if (phy->rev >= 2 || phy->gmode)
+	if (phy->rev >= 2 && phy->gmode)
 		b43legacy_phy_inita(dev);
 
 	if (phy->rev >= 2) {
@@ -1025,18 +1027,22 @@ static void b43legacy_phy_initg(struct b43legacy_wldev *dev)
 		b43legacy_phy_write(dev, 0x0811, 0x0400);
 		b43legacy_phy_write(dev, 0x0015, 0x00C0);
 	}
-	if (phy->rev >= 2 || phy->gmode) {
+	if (phy->gmode) {
 		tmp = b43legacy_phy_read(dev, 0x0400) & 0xFF;
-		if (tmp == 3 || tmp == 5) {
+		if (tmp == 3) {
+			b43legacy_phy_write(dev, 0x04C2, 0x1816);
+			b43legacy_phy_write(dev, 0x04C3, 0x8606);
+		}
+		if (tmp == 4 || tmp == 5) {
 			b43legacy_phy_write(dev, 0x04C2, 0x1816);
 			b43legacy_phy_write(dev, 0x04C3, 0x8006);
-			if (tmp == 5)
-				b43legacy_phy_write(dev, 0x04CC,
-						    (b43legacy_phy_read(dev,
-						     0x04CC) & 0x00FF) |
-						     0x1F00);
+			b43legacy_phy_write(dev, 0x04CC,
+					    (b43legacy_phy_read(dev,
+					     0x04CC) & 0x00FF) |
+					     0x1F00);
 		}
-		b43legacy_phy_write(dev, 0x047E, 0x0078);
+		if (phy->rev >= 2)
+			b43legacy_phy_write(dev, 0x047E, 0x0078);
 	}
 	if (phy->radio_rev == 8) {
 		b43legacy_phy_write(dev, 0x0801, b43legacy_phy_read(dev, 0x0801)
@@ -1078,7 +1084,7 @@ static void b43legacy_phy_initg(struct b43legacy_wldev *dev)
 		else
 			b43legacy_phy_write(dev, 0x002F, 0x0202);
 	}
-	if (phy->gmode || phy->rev >= 2) {
+	if (phy->gmode) {
 		b43legacy_phy_lo_adjust(dev, 0);
 		b43legacy_phy_write(dev, 0x080F, 0x8078);
 	}

drivers/net/wireless/b43legacy/xmit.c

@@ -624,7 +624,7 @@ void b43legacy_handle_hwtxstatus(struct b43legacy_wldev *dev,
 	tmp = hw->count;
 	status.frame_count = (tmp >> 4);
 	status.rts_count = (tmp & 0x0F);
-	tmp = hw->flags;
+	tmp = hw->flags << 1;
 	status.supp_reason = ((tmp & 0x1C) >> 2);
 	status.pm_indicated = !!(tmp & 0x80);
 	status.intermediate = !!(tmp & 0x40);

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

@@ -681,19 +681,7 @@ static void iwl3945_rx_reply_rx(struct iwl3945_priv *priv,
 		priv->last_rx_noise = rx_status.noise;
 	}
 
-	if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
-		iwl3945_pass_packet_to_mac80211(priv, rxb, &rx_status);
-		return;
-	}
-
-	switch (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FTYPE) {
-	case IEEE80211_FTYPE_MGMT:
-	case IEEE80211_FTYPE_DATA:
-		/* fall through */
-	default:
-		iwl3945_pass_packet_to_mac80211(priv, rxb, &rx_status);
-		break;
-	}
+	iwl3945_pass_packet_to_mac80211(priv, rxb, &rx_status);
 }
 
 int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *ptr,

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

@@ -1607,8 +1607,8 @@ static int iwl4965_send_rxon_assoc(struct iwl_priv *priv)
 	return ret;
 }
 
-
-int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
+#ifdef IEEE80211_CONF_CHANNEL_SWITCH
+static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
 {
 	int rc;
 	u8 band = 0;
@@ -1648,6 +1648,7 @@ int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
 	rc = iwl_send_cmd_pdu(priv, REPLY_CHANNEL_SWITCH, sizeof(cmd), &cmd);
 	return rc;
 }
+#endif
 
 static int iwl4965_shared_mem_rx_idx(struct iwl_priv *priv)
 {

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

@@ -436,7 +436,7 @@ static int rs_collect_tx_data(struct iwl_rate_scale_data *windows,
 		/* Shift bitmap by one frame (throw away oldest history),
 		 * OR in "1", and increment "success" if this
 		 * frame was successful. */
-		window->data <<= 1;;
+		window->data <<= 1;
 		if (successes > 0) {
 			window->success_counter++;
 			window->data |= 0x1;
@@ -1128,6 +1128,7 @@ static s32 rs_get_best_rate(struct iwl_priv *priv,
 
 			/* Higher rate not available, use the original */
 			} else {
+				new_rate = rate;
 				break;
 			}
 		}
@@ -1153,8 +1154,8 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
 	    !sta->ht_info.ht_supported)
 		return -1;
 
-	if (((sta->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS) >> 2)
-						== IWL_MIMO_PS_STATIC)
+	if (((sta->ht_info.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
+						== WLAN_HT_CAP_SM_PS_STATIC)
 		return -1;
 
 	/* Need both Tx chains/antennas to support MIMO */
@@ -1281,15 +1282,23 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
 		  (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
 	u8 start_action = tbl->action;
 	u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
+	u8 tx_chains_num = priv->hw_params.tx_chains_num;
 	int ret = 0;
 
 	for (; ;) {
 		switch (tbl->action) {
-		case IWL_LEGACY_SWITCH_ANTENNA:
+		case IWL_LEGACY_SWITCH_ANTENNA1:
+		case IWL_LEGACY_SWITCH_ANTENNA2:
 			IWL_DEBUG_RATE("LQ: Legacy toggle Antenna\n");
 
 			lq_sta->action_counter++;
 
+			if ((tbl->action == IWL_LEGACY_SWITCH_ANTENNA1 &&
+							tx_chains_num <= 1) ||
+			    (tbl->action == IWL_LEGACY_SWITCH_ANTENNA2 &&
+							tx_chains_num <= 2))
+				break;
+
 			/* Don't change antenna if success has been great */
 			if (window->success_ratio >= IWL_RS_GOOD_RATIO)
 				break;
@@ -1299,7 +1308,7 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
 
 			if (rs_toggle_antenna(valid_tx_ant,
 				&search_tbl->current_rate, search_tbl)) {
-				lq_sta->search_better_tbl = 1;
+				rs_set_expected_tpt_table(lq_sta, search_tbl);
 				goto out;
 			}
 			break;
@@ -1312,43 +1321,54 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
 			ret = rs_switch_to_siso(priv, lq_sta, conf, sta,
 						 search_tbl, index);
 			if (!ret) {
-				lq_sta->search_better_tbl = 1;
 				lq_sta->action_counter = 0;
 				goto out;
 			}
 
 			break;
-		case IWL_LEGACY_SWITCH_MIMO2:
+		case IWL_LEGACY_SWITCH_MIMO2_AB:
+		case IWL_LEGACY_SWITCH_MIMO2_AC:
+		case IWL_LEGACY_SWITCH_MIMO2_BC:
 			IWL_DEBUG_RATE("LQ: Legacy switch to MIMO2\n");
 
 			/* Set up search table to try MIMO */
 			memcpy(search_tbl, tbl, sz);
 			search_tbl->is_SGI = 0;
-			search_tbl->ant_type = ANT_AB;/*FIXME:RS*/
-				/*FIXME:RS:need to check ant validity*/
+
+			if (tbl->action == IWL_LEGACY_SWITCH_MIMO2_AB)
+				search_tbl->ant_type = ANT_AB;
+			else if (tbl->action == IWL_LEGACY_SWITCH_MIMO2_AC)
+				search_tbl->ant_type = ANT_AC;
+			else
+				search_tbl->ant_type = ANT_BC;
+
+			if (!rs_is_valid_ant(valid_tx_ant, search_tbl->ant_type))
+				break;
+
 			ret = rs_switch_to_mimo2(priv, lq_sta, conf, sta,
 						 search_tbl, index);
 			if (!ret) {
-				lq_sta->search_better_tbl = 1;
 				lq_sta->action_counter = 0;
 				goto out;
 			}
 			break;
 		}
 		tbl->action++;
-		if (tbl->action > IWL_LEGACY_SWITCH_MIMO2)
-			tbl->action = IWL_LEGACY_SWITCH_ANTENNA;
+		if (tbl->action > IWL_LEGACY_SWITCH_MIMO2_BC)
+			tbl->action = IWL_LEGACY_SWITCH_ANTENNA1;
 
 		if (tbl->action == start_action)
 			break;
 
 	}
+	search_tbl->lq_type = LQ_NONE;
 	return 0;
 
- out:
+out:
+	lq_sta->search_better_tbl = 1;
 	tbl->action++;
-	if (tbl->action > IWL_LEGACY_SWITCH_MIMO2)
-		tbl->action = IWL_LEGACY_SWITCH_ANTENNA;
+	if (tbl->action > IWL_LEGACY_SWITCH_MIMO2_BC)
+		tbl->action = IWL_LEGACY_SWITCH_ANTENNA1;
 	return 0;
 
 }
@@ -1370,34 +1390,51 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
 		  (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
 	u8 start_action = tbl->action;
 	u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
+	u8 tx_chains_num = priv->hw_params.tx_chains_num;
 	int ret;
 
 	for (;;) {
 		lq_sta->action_counter++;
 		switch (tbl->action) {
-		case IWL_SISO_SWITCH_ANTENNA:
+		case IWL_SISO_SWITCH_ANTENNA1:
+		case IWL_SISO_SWITCH_ANTENNA2:
 			IWL_DEBUG_RATE("LQ: SISO toggle Antenna\n");
+
+			if ((tbl->action == IWL_SISO_SWITCH_ANTENNA1 &&
+							tx_chains_num <= 1) ||
+			    (tbl->action == IWL_SISO_SWITCH_ANTENNA2 &&
+							tx_chains_num <= 2))
+				break;
+
 			if (window->success_ratio >= IWL_RS_GOOD_RATIO)
 				break;
 
 			memcpy(search_tbl, tbl, sz);
 			if (rs_toggle_antenna(valid_tx_ant,
-				       &search_tbl->current_rate, search_tbl)) {
-				lq_sta->search_better_tbl = 1;
+				       &search_tbl->current_rate, search_tbl))
 				goto out;
-			}
 			break;
-		case IWL_SISO_SWITCH_MIMO2:
+		case IWL_SISO_SWITCH_MIMO2_AB:
+		case IWL_SISO_SWITCH_MIMO2_AC:
+		case IWL_SISO_SWITCH_MIMO2_BC:
 			IWL_DEBUG_RATE("LQ: SISO switch to MIMO2\n");
 			memcpy(search_tbl, tbl, sz);
 			search_tbl->is_SGI = 0;
-			search_tbl->ant_type = ANT_AB; /*FIXME:RS*/
+
+			if (tbl->action == IWL_SISO_SWITCH_MIMO2_AB)
+				search_tbl->ant_type = ANT_AB;
+			else if (tbl->action == IWL_SISO_SWITCH_MIMO2_AC)
+				search_tbl->ant_type = ANT_AC;
+			else
+				search_tbl->ant_type = ANT_BC;
+
+			if (!rs_is_valid_ant(valid_tx_ant, search_tbl->ant_type))
+				break;
+
 			ret = rs_switch_to_mimo2(priv, lq_sta, conf, sta,
 						 search_tbl, index);
-			if (!ret) {
-				lq_sta->search_better_tbl = 1;
+			if (!ret)
 				goto out;
-			}
 			break;
 		case IWL_SISO_SWITCH_GI:
 			if (!tbl->is_fat &&
@@ -1427,22 +1464,23 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
 			}
 			search_tbl->current_rate = rate_n_flags_from_tbl(
 						search_tbl, index, is_green);
-			lq_sta->search_better_tbl = 1;
 			goto out;
 		}
 		tbl->action++;
 		if (tbl->action > IWL_SISO_SWITCH_GI)
-			tbl->action = IWL_SISO_SWITCH_ANTENNA;
+			tbl->action = IWL_SISO_SWITCH_ANTENNA1;
 
 		if (tbl->action == start_action)
 			break;
 	}
+	search_tbl->lq_type = LQ_NONE;
 	return 0;
 
  out:
+	lq_sta->search_better_tbl = 1;
 	tbl->action++;
 	if (tbl->action > IWL_SISO_SWITCH_GI)
-		tbl->action = IWL_SISO_SWITCH_ANTENNA;
+		tbl->action = IWL_SISO_SWITCH_ANTENNA1;
 	return 0;
 }
 
@@ -1458,37 +1496,58 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
 	struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
 	struct iwl_scale_tbl_info *search_tbl =
 				&(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
+	struct iwl_rate_scale_data *window = &(tbl->win[index]);
 	u32 sz = (sizeof(struct iwl_scale_tbl_info) -
 		  (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
 	u8 start_action = tbl->action;
-	/*u8 valid_tx_ant = priv->hw_params.valid_tx_ant;*/
+	u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
+	u8 tx_chains_num = priv->hw_params.tx_chains_num;
 	int ret;
 
 	for (;;) {
 		lq_sta->action_counter++;
 		switch (tbl->action) {
-		case IWL_MIMO_SWITCH_ANTENNA_A:
-		case IWL_MIMO_SWITCH_ANTENNA_B:
+		case IWL_MIMO2_SWITCH_ANTENNA1:
+		case IWL_MIMO2_SWITCH_ANTENNA2:
+			IWL_DEBUG_RATE("LQ: MIMO toggle Antennas\n");
+
+			if (tx_chains_num <= 2)
+				break;
+
+			if (window->success_ratio >= IWL_RS_GOOD_RATIO)
+				break;
+
+			memcpy(search_tbl, tbl, sz);
+			if (rs_toggle_antenna(valid_tx_ant,
+				       &search_tbl->current_rate, search_tbl))
+				goto out;
+			break;
+		case IWL_MIMO2_SWITCH_SISO_A:
+		case IWL_MIMO2_SWITCH_SISO_B:
+		case IWL_MIMO2_SWITCH_SISO_C:
 			IWL_DEBUG_RATE("LQ: MIMO2 switch to SISO\n");
 
 			/* Set up new search table for SISO */
 			memcpy(search_tbl, tbl, sz);
 
-			/*FIXME:RS:need to check ant validity + C*/
-			if (tbl->action == IWL_MIMO_SWITCH_ANTENNA_A)
+			if (tbl->action == IWL_MIMO2_SWITCH_SISO_A)
 				search_tbl->ant_type = ANT_A;
-			else
+			else if (tbl->action == IWL_MIMO2_SWITCH_SISO_B)
 				search_tbl->ant_type = ANT_B;
+			else
+				search_tbl->ant_type = ANT_C;
+
+			if (!rs_is_valid_ant(valid_tx_ant, search_tbl->ant_type))
+				break;
 
 			ret = rs_switch_to_siso(priv, lq_sta, conf, sta,
 						 search_tbl, index);
-			if (!ret) {
-				lq_sta->search_better_tbl = 1;
+			if (!ret)
 				goto out;
-			}
+
 			break;
 
-		case IWL_MIMO_SWITCH_GI:
+		case IWL_MIMO2_SWITCH_GI:
 			if (!tbl->is_fat &&
 				!(priv->current_ht_config.sgf &
 						HT_SHORT_GI_20MHZ))
@@ -1517,23 +1576,23 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
 			}
 			search_tbl->current_rate = rate_n_flags_from_tbl(
 						search_tbl, index, is_green);
-			lq_sta->search_better_tbl = 1;
 			goto out;
 
 		}
 		tbl->action++;
-		if (tbl->action > IWL_MIMO_SWITCH_GI)
-			tbl->action = IWL_MIMO_SWITCH_ANTENNA_A;
+		if (tbl->action > IWL_MIMO2_SWITCH_GI)
+			tbl->action = IWL_MIMO2_SWITCH_ANTENNA1;
 
 		if (tbl->action == start_action)
 			break;
 	}
-
+	search_tbl->lq_type = LQ_NONE;
 	return 0;
  out:
+	lq_sta->search_better_tbl = 1;
 	tbl->action++;
-	if (tbl->action > IWL_MIMO_SWITCH_GI)
-		tbl->action = IWL_MIMO_SWITCH_ANTENNA_A;
+	if (tbl->action > IWL_MIMO2_SWITCH_GI)
+		tbl->action = IWL_MIMO2_SWITCH_ANTENNA1;
 	return 0;
 
 }
@@ -1748,19 +1807,13 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 		rs_stay_in_table(lq_sta);
 
 		goto out;
+	}
 
 	/* Else we have enough samples; calculate estimate of
 	 * actual average throughput */
-	} else {
-		/*FIXME:RS remove this else if we don't get this error*/
-		if (window->average_tpt != ((window->success_ratio *
-				tbl->expected_tpt[index] + 64) / 128)) {
-			IWL_ERROR("expected_tpt should have been calculated"
-								" by now\n");
-			window->average_tpt = ((window->success_ratio *
-					tbl->expected_tpt[index] + 64) / 128);
-		}
-	}
+
+	BUG_ON(window->average_tpt != ((window->success_ratio *
+			tbl->expected_tpt[index] + 64) / 128));
 
 	/* If we are searching for better modulation mode, check success. */
 	if (lq_sta->search_better_tbl) {
@@ -1770,7 +1823,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 		 * continuing to use the setup that we've been trying. */
 		if (window->average_tpt > lq_sta->last_tpt) {
 
-			IWL_DEBUG_RATE("LQ: SWITCHING TO CURRENT TABLE "
+			IWL_DEBUG_RATE("LQ: SWITCHING TO NEW TABLE "
 					"suc=%d cur-tpt=%d old-tpt=%d\n",
 					window->success_ratio,
 					window->average_tpt,
@@ -2183,7 +2236,7 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
 		for (i = 0; i < IWL_RATE_COUNT; i++)
 			rs_rate_scale_clear_window(&lq_sta->lq_info[j].win[i]);
 
-	IWL_DEBUG_RATE("LQ: *** rate scale global init ***\n");
+	IWL_DEBUG_RATE("LQ: *** rate scale station global init ***\n");
 	/* TODO: what is a good starting rate for STA? About middle? Maybe not
 	 * the lowest or the highest rate.. Could consider using RSSI from
 	 * previous packets? Need to have IEEE 802.1X auth succeed immediately

drivers/net/wireless/iwlwifi/iwl-agn-rs.h

@@ -206,21 +206,28 @@ enum {
 #define IWL_RATE_DECREASE_TH		1920	/*  15% */
 
 /* possible actions when in legacy mode */
-#define IWL_LEGACY_SWITCH_ANTENNA	0
-#define IWL_LEGACY_SWITCH_SISO		1
-#define IWL_LEGACY_SWITCH_MIMO2		2
+#define IWL_LEGACY_SWITCH_ANTENNA1      0
+#define IWL_LEGACY_SWITCH_ANTENNA2      1
+#define IWL_LEGACY_SWITCH_SISO          2
+#define IWL_LEGACY_SWITCH_MIMO2_AB      3
+#define IWL_LEGACY_SWITCH_MIMO2_AC      4
+#define IWL_LEGACY_SWITCH_MIMO2_BC      5
 
 /* possible actions when in siso mode */
-#define IWL_SISO_SWITCH_ANTENNA		0
-#define IWL_SISO_SWITCH_MIMO2		1
-#define IWL_SISO_SWITCH_GI		2
+#define IWL_SISO_SWITCH_ANTENNA1        0
+#define IWL_SISO_SWITCH_ANTENNA2        1
+#define IWL_SISO_SWITCH_MIMO2_AB        2
+#define IWL_SISO_SWITCH_MIMO2_AC        3
+#define IWL_SISO_SWITCH_MIMO2_BC        4
+#define IWL_SISO_SWITCH_GI              5
 
 /* possible actions when in mimo mode */
-#define IWL_MIMO_SWITCH_ANTENNA_A	0
-#define IWL_MIMO_SWITCH_ANTENNA_B	1
-#define IWL_MIMO_SWITCH_GI		2
-
-/*FIXME:RS:separate MIMO2/3 transitions*/
+#define IWL_MIMO2_SWITCH_ANTENNA1       0
+#define IWL_MIMO2_SWITCH_ANTENNA2       1
+#define IWL_MIMO2_SWITCH_SISO_A         2
+#define IWL_MIMO2_SWITCH_SISO_B         3
+#define IWL_MIMO2_SWITCH_SISO_C         4
+#define IWL_MIMO2_SWITCH_GI             5
 
 /*FIXME:RS:add posible acctions for MIMO3*/
 

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

@@ -485,7 +485,7 @@ static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv)
 		return IWL_RATE_6M_PLCP;
 }
 
-unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
+static unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
 				       struct iwl_frame *frame, u8 rate)
 {
 	struct iwl_tx_beacon_cmd *tx_beacon_cmd;
@@ -564,8 +564,6 @@ static void iwl4965_ht_conf(struct iwl_priv *priv,
 	if (!iwl_conf->is_ht)
 		return;
 
-	priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
-
 	if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
 		iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
 	if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
@@ -586,6 +584,8 @@ static void iwl4965_ht_conf(struct iwl_priv *priv,
 		iwl_conf->supported_chan_width = 0;
 	}
 
+	iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2);
+
 	memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
 
 	iwl_conf->control_channel = ht_bss_conf->primary_channel;
@@ -2558,7 +2558,11 @@ static void iwl4965_post_associate(struct iwl_priv *priv)
 	iwl_activate_qos(priv, 0);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	iwl_power_enable_management(priv);
+	/* the chain noise calibration will enabled PM upon completion
+	 * If chain noise has already been run, then we need to enable
+	 * power management here */
+	if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE)
+		iwl_power_enable_management(priv);
 
 	/* Enable Rx differential gain and sensitivity calibrations */
 	iwl_chain_noise_reset(priv);

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

@@ -808,13 +808,11 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv,
 		}
 	}
 
+	/* Save for use within RXON, TX, SCAN commands, etc. */
+	priv->chain_noise_data.active_chains = active_chains;
 	IWL_DEBUG_CALIB("active_chains (bitwise) = 0x%x\n",
 			active_chains);
 
-	/* Save for use within RXON, TX, SCAN commands, etc. */
-	/*priv->valid_antenna = active_chains;*/
-	/*FIXME: should be reflected in RX chains in RXON */
-
 	/* Analyze noise for rx balance */
 	average_noise[0] = ((data->chain_noise_a)/CAL_NUM_OF_BEACONS);
 	average_noise[1] = ((data->chain_noise_b)/CAL_NUM_OF_BEACONS);
@@ -839,6 +837,15 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv,
 
 	priv->cfg->ops->utils->gain_computation(priv, average_noise,
 		min_average_noise_antenna_i, min_average_noise);
+
+	/* Some power changes may have been made during the calibration.
+	 * Update and commit the RXON
+	 */
+	if (priv->cfg->ops->lib->update_chain_flags)
+		priv->cfg->ops->lib->update_chain_flags(priv);
+
+	data->state = IWL_CHAIN_NOISE_DONE;
+	iwl_power_enable_management(priv);
 }
 EXPORT_SYMBOL(iwl_chain_noise_calibration);
 

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

@@ -399,8 +399,8 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
 
 	ht_info->cap |= (u16)IEEE80211_HT_CAP_GRN_FLD;
 	ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_20;
-	ht_info->cap |= (u16)(IEEE80211_HT_CAP_MIMO_PS &
-			     (IWL_MIMO_PS_NONE << 2));
+	ht_info->cap |= (u16)(IEEE80211_HT_CAP_SM_PS &
+			     (WLAN_HT_CAP_SM_PS_DISABLED << 2));
 
 	max_bit_rate = MAX_BIT_RATE_20_MHZ;
 	if (priv->hw_params.fat_channel & BIT(band)) {
@@ -709,7 +709,8 @@ static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
 	bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
 
 	/* # of Rx chains to use when expecting MIMO. */
-	if (is_single || (!is_cam && (priv->ps_mode == IWL_MIMO_PS_STATIC)))
+	if (is_single || (!is_cam && (priv->current_ht_config.sm_ps ==
+						 WLAN_HT_CAP_SM_PS_STATIC)))
 		return 2;
 	else
 		return 3;
@@ -720,17 +721,18 @@ static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
 	int idle_cnt;
 	bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
 	/* # Rx chains when idling and maybe trying to save power */
-	switch (priv->ps_mode) {
-	case IWL_MIMO_PS_STATIC:
-	case IWL_MIMO_PS_DYNAMIC:
+	switch (priv->current_ht_config.sm_ps) {
+	case WLAN_HT_CAP_SM_PS_STATIC:
+	case WLAN_HT_CAP_SM_PS_DYNAMIC:
 		idle_cnt = (is_cam) ? 2 : 1;
 		break;
-	case IWL_MIMO_PS_NONE:
+	case WLAN_HT_CAP_SM_PS_DISABLED:
 		idle_cnt = (is_cam) ? active_cnt : 1;
 		break;
-	case IWL_MIMO_PS_INVALID:
+	case WLAN_HT_CAP_SM_PS_INVALID:
 	default:
-		IWL_ERROR("invalide mimo ps mode %d\n", priv->ps_mode);
+		IWL_ERROR("invalide mimo ps mode %d\n",
+			   priv->current_ht_config.sm_ps);
 		WARN_ON(1);
 		idle_cnt = -1;
 		break;
@@ -738,6 +740,17 @@ static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
 	return idle_cnt;
 }
 
+/* up to 4 chains */
+static u8 iwl_count_chain_bitmap(u32 chain_bitmap)
+{
+	u8 res;
+	res = (chain_bitmap & BIT(0)) >> 0;
+	res += (chain_bitmap & BIT(1)) >> 1;
+	res += (chain_bitmap & BIT(2)) >> 2;
+	res += (chain_bitmap & BIT(4)) >> 4;
+	return res;
+}
+
 /**
  * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
  *
@@ -748,25 +761,35 @@ void iwl_set_rxon_chain(struct iwl_priv *priv)
 {
 	bool is_single = is_single_rx_stream(priv);
 	bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
-	u8 idle_rx_cnt, active_rx_cnt;
+	u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt;
+	u32 active_chains;
 	u16 rx_chain;
 
 	/* Tell uCode which antennas are actually connected.
 	 * Before first association, we assume all antennas are connected.
 	 * Just after first association, iwl_chain_noise_calibration()
 	 *    checks which antennas actually *are* connected. */
-	rx_chain = priv->hw_params.valid_rx_ant << RXON_RX_CHAIN_VALID_POS;
+	 if (priv->chain_noise_data.active_chains)
+		active_chains = priv->chain_noise_data.active_chains;
+	else
+		active_chains = priv->hw_params.valid_rx_ant;
+
+	rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;
 
 	/* How many receivers should we use? */
 	active_rx_cnt = iwl_get_active_rx_chain_count(priv);
 	idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt);
 
-	/* correct rx chain count accoridng hw settings */
-	if (priv->hw_params.rx_chains_num < active_rx_cnt)
-		active_rx_cnt = priv->hw_params.rx_chains_num;
 
-	if (priv->hw_params.rx_chains_num < idle_rx_cnt)
-		idle_rx_cnt = priv->hw_params.rx_chains_num;
+	/* correct rx chain count according hw settings
+	 * and chain noise calibration
+	 */
+	valid_rx_cnt = iwl_count_chain_bitmap(active_chains);
+	if (valid_rx_cnt < active_rx_cnt)
+		active_rx_cnt = valid_rx_cnt;
+
+	if (valid_rx_cnt < idle_rx_cnt)
+		idle_rx_cnt = valid_rx_cnt;
 
 	rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
 	rx_chain |= idle_rx_cnt  << RXON_RX_CHAIN_CNT_POS;
@@ -778,7 +801,7 @@ void iwl_set_rxon_chain(struct iwl_priv *priv)
 	else
 		priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
 
-	IWL_DEBUG_ASSOC("rx_chain=0x%Xi active=%d idle=%d\n",
+	IWL_DEBUG_ASSOC("rx_chain=0x%X active=%d idle=%d\n",
 			priv->staging_rxon.rx_chain,
 			active_rx_cnt, idle_rx_cnt);
 
@@ -912,7 +935,7 @@ int iwl_init_drv(struct iwl_priv *priv)
 	priv->iw_mode = IEEE80211_IF_TYPE_STA;
 
 	priv->use_ant_b_for_management_frame = 1; /* start with ant B */
-	priv->ps_mode = IWL_MIMO_PS_NONE;
+	priv->current_ht_config.sm_ps = WLAN_HT_CAP_SM_PS_DISABLED;
 
 	/* Choose which receivers/antennas to use */
 	iwl_set_rxon_chain(priv);
@@ -1135,7 +1158,6 @@ int iwl_verify_ucode(struct iwl_priv *priv)
 }
 EXPORT_SYMBOL(iwl_verify_ucode);
 
-
 static const char *desc_lookup(int i)
 {
 	switch (i) {
@@ -1216,9 +1238,9 @@ EXPORT_SYMBOL(iwl_dump_nic_error_log);
 /**
  * iwl_print_event_log - Dump error event log to syslog
  *
- * NOTE: Must be called with iwl4965_grab_nic_access() already obtained!
+ * NOTE: Must be called with iwl_grab_nic_access() already obtained!
  */
-void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
+static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
 				u32 num_events, u32 mode)
 {
 	u32 i;
@@ -1259,8 +1281,6 @@ void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
 		}
 	}
 }
-EXPORT_SYMBOL(iwl_print_event_log);
-
 
 void iwl_dump_nic_event_log(struct iwl_priv *priv)
 {

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

@@ -184,7 +184,6 @@ struct iwl_cfg {
 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
 		struct ieee80211_ops *hw_ops);
 void iwl_hw_detect(struct iwl_priv *priv);
-
 void iwl_clear_stations_table(struct iwl_priv *priv);
 void iwl_reset_qos(struct iwl_priv *priv);
 void iwl_set_rxon_chain(struct iwl_priv *priv);
@@ -215,7 +214,6 @@ void iwl_rx_replenish(struct iwl_priv *priv);
 int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 int iwl_rx_agg_start(struct iwl_priv *priv, const u8 *addr, int tid, u16 ssn);
 int iwl_rx_agg_stop(struct iwl_priv *priv, const u8 *addr, int tid);
-/* FIXME: remove when TX is moved to iwl core */
 int iwl_rx_queue_restock(struct iwl_priv *priv);
 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 void iwl_rx_allocate(struct iwl_priv *priv);
@@ -234,11 +232,7 @@ void iwl_rx_statistics(struct iwl_priv *priv,
 ******************************************************/
 int iwl_txq_ctx_reset(struct iwl_priv *priv);
 int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
-/* FIXME: remove when free Tx is fully merged into iwlcore */
-int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 void iwl_hw_txq_ctx_free(struct iwl_priv *priv);
-int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd,
-					dma_addr_t addr, u16 len);
 int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn);
 int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid);
@@ -253,6 +247,7 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
  * RF -Kill - here and not in iwl-rfkill.h to be available when
  * RF-kill subsystem is not compiled.
  ****************************************************/
+void iwl_rf_kill(struct iwl_priv *priv);
 void iwl_radio_kill_sw_disable_radio(struct iwl_priv *priv);
 int iwl_radio_kill_sw_enable_radio(struct iwl_priv *priv);
 
@@ -283,7 +278,6 @@ static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 void iwl_init_scan_params(struct iwl_priv *priv);
 int iwl_scan_cancel(struct iwl_priv *priv);
 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
-const char *iwl_escape_essid(const char *essid, u8 essid_len);
 int iwl_scan_initiate(struct iwl_priv *priv);
 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
@@ -316,8 +310,6 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 /*****************************************************
 *  Error Handling Debugging
 ******************************************************/
-void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
-			 u32 num_events, u32 mode);
 void iwl_dump_nic_error_log(struct iwl_priv *priv);
 void iwl_dump_nic_event_log(struct iwl_priv *priv);
 

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

@@ -406,6 +406,7 @@ struct iwl_ht_info {
 	/* self configuration data */
 	u8 is_ht;
 	u8 supported_chan_width;
+	u8 sm_ps;
 	u8 is_green_field;
 	u8 sgf;			/* HT_SHORT_GI_* short guard interval */
 	u8 max_amsdu_size;
@@ -564,50 +565,31 @@ struct iwl_hw_params {
 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 
-
-/******************************************************************************
- *
- * Functions implemented in iwl-base.c which are forward declared here
- * for use by iwl-*.c
- *
- *****************************************************************************/
-struct iwl_addsta_cmd;
-extern int iwl_send_add_sta(struct iwl_priv *priv,
-			    struct iwl_addsta_cmd *sta, u8 flags);
-u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap,
-			 u8 flags, struct ieee80211_ht_info *ht_info);
-extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
-					struct ieee80211_hdr *hdr,
-					const u8 *dest, int left);
-extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
-int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
-extern int iwl4965_set_power(struct iwl_priv *priv, void *cmd);
-
-extern const u8 iwl_bcast_addr[ETH_ALEN];
-
 /******************************************************************************
  *
- * Functions implemented in iwl-[34]*.c which are forward declared here
- * for use by iwl-base.c
+ * Functions implemented in core module which are forward declared here
+ * for use by iwl-[4-5].c
  *
- * NOTE:  The implementation of these functions are hardware specific
- * which is why they are in the hardware specific files (vs. iwl-base.c)
+ * NOTE:  The implementation of these functions are not hardware specific
+ * which is why they are in the core module files.
  *
  * Naming convention --
- * iwl4965_         <-- Its part of iwlwifi (should be changed to iwl4965_)
- * iwl4965_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
+ * iwl_         <-- Is part of iwlwifi
  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
  * iwl4965_bg_      <-- Called from work queue context
  * iwl4965_mac_     <-- mac80211 callback
  *
  ****************************************************************************/
+struct iwl_addsta_cmd;
+extern int iwl_send_add_sta(struct iwl_priv *priv,
+			    struct iwl_addsta_cmd *sta, u8 flags);
+extern u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr,
+			int is_ap, u8 flags, struct ieee80211_ht_info *ht_info);
+extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
+extern int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
+extern const u8 iwl_bcast_addr[ETH_ALEN];
 extern int iwl_rxq_stop(struct iwl_priv *priv);
 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
-extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
-				 struct iwl_frame *frame, u8 rate);
-extern void iwl4965_disable_events(struct iwl_priv *priv);
-
-extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
 extern int iwl_queue_space(const struct iwl_queue *q);
 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
 {
@@ -644,11 +626,6 @@ struct iwl_kw {
 #define IWL_CHANNEL_WIDTH_20MHZ   0
 #define IWL_CHANNEL_WIDTH_40MHZ   1
 
-#define IWL_MIMO_PS_STATIC        0
-#define IWL_MIMO_PS_NONE          3
-#define IWL_MIMO_PS_DYNAMIC       1
-#define IWL_MIMO_PS_INVALID       2
-
 #define IWL_OPERATION_MODE_AUTO     0
 #define IWL_OPERATION_MODE_HT_ONLY  1
 #define IWL_OPERATION_MODE_MIXED    2
@@ -703,8 +680,9 @@ enum iwl4965_false_alarm_state {
 
 enum iwl4965_chain_noise_state {
 	IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
-	IWL_CHAIN_NOISE_ACCUMULATE = 1,
-	IWL_CHAIN_NOISE_CALIBRATED = 2,
+	IWL_CHAIN_NOISE_ACCUMULATE,
+	IWL_CHAIN_NOISE_CALIBRATED,
+	IWL_CHAIN_NOISE_DONE,
 };
 
 enum iwl4965_calib_enabled_state {
@@ -762,17 +740,18 @@ struct iwl_sensitivity_data {
 
 /* Chain noise (differential Rx gain) calib data */
 struct iwl_chain_noise_data {
-	u8 state;
-	u16 beacon_count;
+	u32 active_chains;
 	u32 chain_noise_a;
 	u32 chain_noise_b;
 	u32 chain_noise_c;
 	u32 chain_signal_a;
 	u32 chain_signal_b;
 	u32 chain_signal_c;
+	u16 beacon_count;
 	u8 disconn_array[NUM_RX_CHAINS];
 	u8 delta_gain_code[NUM_RX_CHAINS];
 	u8 radio_write;
+	u8 state;
 };
 
 #define	EEPROM_SEM_TIMEOUT 10		/* milliseconds */
@@ -995,7 +974,6 @@ struct iwl_priv {
 	 * hardware */
 	u16 assoc_id;
 	u16 assoc_capability;
-	u8 ps_mode;
 
 	struct iwl_qos_info qos_data;
 

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

@@ -250,17 +250,26 @@ static int iwl_update_power_command(struct iwl_priv *priv,
 
 
 /*
- * calucaute the final power mode index
+ * compute the final power mode index
  */
-int iwl_power_update_mode(struct iwl_priv *priv, u8 refresh)
+int iwl_power_update_mode(struct iwl_priv *priv, bool force)
 {
 	struct iwl_power_mgr *setting = &(priv->power_data);
 	int ret = 0;
 	u16 uninitialized_var(final_mode);
 
-       /* If on battery, set to 3,
-	* if plugged into AC power, set to CAM ("continuously aware mode"),
-	* else user level */
+	/* Don't update the RX chain when chain noise calibration is running */
+	if (priv->chain_noise_data.state != IWL_CHAIN_NOISE_DONE &&
+	    priv->chain_noise_data.state != IWL_CHAIN_NOISE_ALIVE) {
+		IWL_DEBUG_POWER("Cannot update the power, chain noise "
+			"calibration running: %d\n",
+			priv->chain_noise_data.state);
+		return -EAGAIN;
+	}
+
+	/* If on battery, set to 3,
+	 * if plugged into AC power, set to CAM ("continuously aware mode"),
+	 * else user level */
 
 	switch (setting->system_power_setting) {
 	case IWL_POWER_SYS_AUTO:
@@ -285,7 +294,7 @@ int iwl_power_update_mode(struct iwl_priv *priv, u8 refresh)
 		final_mode = IWL_POWER_MODE_CAM;
 
 	if (!iwl_is_rfkill(priv) && !setting->power_disabled &&
-	    ((setting->power_mode != final_mode) || refresh)) {
+	    ((setting->power_mode != final_mode) || force)) {
 		struct iwl_powertable_cmd cmd;
 
 		if (final_mode != IWL_POWER_MODE_CAM)
@@ -359,35 +368,26 @@ EXPORT_SYMBOL(iwl_power_enable_management);
 /* set user_power_setting */
 int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode)
 {
-	int ret = 0;
-
 	if (mode > IWL_POWER_LIMIT)
 		return -EINVAL;
 
 	priv->power_data.user_power_setting = mode;
 
-	ret = iwl_power_update_mode(priv, 0);
-
-	return ret;
+	return iwl_power_update_mode(priv, 0);
 }
 EXPORT_SYMBOL(iwl_power_set_user_mode);
 
-
 /* set system_power_setting. This should be set by over all
  * PM application.
  */
 int iwl_power_set_system_mode(struct iwl_priv *priv, u16 mode)
 {
-	int ret = 0;
-
 	if (mode > IWL_POWER_LIMIT)
 		return -EINVAL;
 
 	priv->power_data.system_power_setting = mode;
 
-	ret = iwl_power_update_mode(priv, 0);
-
-	return ret;
+	return iwl_power_update_mode(priv, 0);
 }
 EXPORT_SYMBOL(iwl_power_set_system_mode);
 

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

@@ -72,7 +72,7 @@ struct iwl_power_mgr {
 	/* final power level that used to calculate final power command */
 	u8 power_mode;
 	u8 user_power_setting; /* set by user through mac80211 or sysfs */
-	u8 system_power_setting; /* set by kernel syatem tools */
+	u8 system_power_setting; /* set by kernel system tools */
 	u8 critical_power_setting; /* set if driver over heated */
 	u8 is_battery_active; /* DC/AC power */
 	u8 power_disabled; /* flag to disable using power saving level */
@@ -80,7 +80,7 @@ struct iwl_power_mgr {
 
 void iwl_setup_power_deferred_work(struct iwl_priv *priv);
 void iwl_power_cancel_timeout(struct iwl_priv *priv);
-int iwl_power_update_mode(struct iwl_priv *priv, u8 refresh);
+int iwl_power_update_mode(struct iwl_priv *priv, bool force);
 int iwl_power_disable_management(struct iwl_priv *priv, u32 ms);
 int iwl_power_enable_management(struct iwl_priv *priv);
 int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode);

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

@@ -88,7 +88,7 @@ static int iwl_is_empty_essid(const char *essid, int essid_len)
 
 
 
-const char *iwl_escape_essid(const char *essid, u8 essid_len)
+static const char *iwl_escape_essid(const char *essid, u8 essid_len)
 {
 	static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
 	const char *s = essid;
@@ -111,7 +111,6 @@ const char *iwl_escape_essid(const char *essid, u8 essid_len)
 	*d = '\0';
 	return escaped;
 }
-EXPORT_SYMBOL(iwl_escape_essid);
 
 /**
  * iwl_scan_cancel - Cancel any currently executing HW scan

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

@@ -191,20 +191,20 @@ static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
 	if (!sta_ht_inf || !sta_ht_inf->ht_supported)
 		goto done;
 
-	mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2;
+	mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
 
 	sta_flags = priv->stations[index].sta.station_flags;
 
 	sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
 
 	switch (mimo_ps_mode) {
-	case WLAN_HT_CAP_MIMO_PS_STATIC:
+	case WLAN_HT_CAP_SM_PS_STATIC:
 		sta_flags |= STA_FLG_MIMO_DIS_MSK;
 		break;
-	case WLAN_HT_CAP_MIMO_PS_DYNAMIC:
+	case WLAN_HT_CAP_SM_PS_DYNAMIC:
 		sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
 		break;
-	case WLAN_HT_CAP_MIMO_PS_DISABLED:
+	case WLAN_HT_CAP_SM_PS_DISABLED:
 		break;
 	default:
 		IWL_WARNING("Invalid MIMO PS mode %d\n", mimo_ps_mode);

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

@@ -63,7 +63,7 @@ static const u16 default_tid_to_tx_fifo[] = {
  * Does NOT advance any TFD circular buffer read/write indexes
  * Does NOT free the TFD itself (which is within circular buffer)
  */
-int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
+static int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
 {
 	struct iwl_tfd_frame *bd_tmp = (struct iwl_tfd_frame *)&txq->bd[0];
 	struct iwl_tfd_frame *bd = &bd_tmp[txq->q.read_ptr];
@@ -115,10 +115,8 @@ int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
 	}
 	return 0;
 }
-EXPORT_SYMBOL(iwl_hw_txq_free_tfd);
 
-
-int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr,
+static int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr,
 				 dma_addr_t addr, u16 len)
 {
 	int index, is_odd;
@@ -151,7 +149,6 @@ int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr,
 
 	return 0;
 }
-EXPORT_SYMBOL(iwl_hw_txq_attach_buf_to_tfd);
 
 /**
  * iwl_txq_update_write_ptr - Send new write index to hardware
@@ -478,7 +475,6 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv)
 }
 EXPORT_SYMBOL(iwl_hw_txq_ctx_free);
 
-
 /**
  * iwl_txq_ctx_reset - Reset TX queue context
  * Destroys all DMA structures and initialise them again
@@ -545,6 +541,7 @@ int iwl_txq_ctx_reset(struct iwl_priv *priv)
  error_kw:
 	return ret;
 }
+
 /**
  * iwl_txq_ctx_stop - Stop all Tx DMA channels, free Tx queue memory
  */

drivers/net/wireless/libertas/cmd.c

@@ -1971,6 +1971,70 @@ void lbs_ps_confirm_sleep(struct lbs_private *priv)
 }
 
 
+/**
+ * @brief Configures the transmission power control functionality.
+ *
+ * @param priv		A pointer to struct lbs_private structure
+ * @param enable	Transmission power control enable
+ * @param p0		Power level when link quality is good (dBm).
+ * @param p1		Power level when link quality is fair (dBm).
+ * @param p2		Power level when link quality is poor (dBm).
+ * @param usesnr	Use Signal to Noise Ratio in TPC
+ *
+ * @return 0 on success
+ */
+int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
+		int8_t p2, int usesnr)
+{
+	struct cmd_ds_802_11_tpc_cfg cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	cmd.enable = !!enable;
+	cmd.usesnr = !!enable;
+	cmd.P0 = p0;
+	cmd.P1 = p1;
+	cmd.P2 = p2;
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd);
+
+	return ret;
+}
+
+/**
+ * @brief Configures the power adaptation settings.
+ *
+ * @param priv		A pointer to struct lbs_private structure
+ * @param enable	Power adaptation enable
+ * @param p0		Power level for 1, 2, 5.5 and 11 Mbps (dBm).
+ * @param p1		Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
+ * @param p2		Power level for 48 and 54 Mbps (dBm).
+ *
+ * @return 0 on Success
+ */
+
+int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
+		int8_t p1, int8_t p2)
+{
+	struct cmd_ds_802_11_pa_cfg cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	cmd.enable = !!enable;
+	cmd.P0 = p0;
+	cmd.P1 = p1;
+	cmd.P2 = p2;
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd);
+
+	return ret;
+}
+
+
 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
 	uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
 	int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),

drivers/net/wireless/libertas/cmd.h

@@ -26,6 +26,12 @@ int __lbs_cmd(struct lbs_private *priv, uint16_t command,
 	      int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
 	      unsigned long callback_arg);
 
+int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
+		int8_t p1, int8_t p2);
+
+int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
+		int8_t p2, int usesnr);
+
 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
 		     struct cmd_header *resp);
 

drivers/net/wireless/libertas/defs.h

@@ -189,6 +189,15 @@ static inline void lbs_deb_hex(unsigned int grp, const char *prompt, u8 *buf, in
 #define MRVDRV_CMD_UPLD_RDY		0x0008
 #define MRVDRV_CARDEVENT		0x0010
 
+
+/* Automatic TX control default levels */
+#define POW_ADAPT_DEFAULT_P0 13
+#define POW_ADAPT_DEFAULT_P1 15
+#define POW_ADAPT_DEFAULT_P2 18
+#define TPC_DEFAULT_P0 5
+#define TPC_DEFAULT_P1 10
+#define TPC_DEFAULT_P2 13
+
 /** TxPD status */
 
 /*	Station firmware use TxPD status field to report final Tx transmit

drivers/net/wireless/libertas/host.h

@@ -83,6 +83,7 @@
 #define CMD_802_11_INACTIVITY_TIMEOUT		0x0067
 #define CMD_802_11_SLEEP_PERIOD			0x0068
 #define CMD_802_11_TPC_CFG			0x0072
+#define CMD_802_11_PA_CFG			0x0073
 #define CMD_802_11_FW_WAKE_METHOD		0x0074
 #define CMD_802_11_SUBSCRIBE_EVENT		0x0075
 #define CMD_802_11_RATE_ADAPT_RATESET		0x0076

drivers/net/wireless/libertas/hostcmd.h

@@ -607,14 +607,28 @@ struct cmd_ds_802_11_eeprom_access {
 } __attribute__ ((packed));
 
 struct cmd_ds_802_11_tpc_cfg {
+	struct cmd_header hdr;
+
 	__le16 action;
-	u8 enable;
-	s8 P0;
-	s8 P1;
-	s8 P2;
-	u8 usesnr;
+	uint8_t enable;
+	int8_t P0;
+	int8_t P1;
+	int8_t P2;
+	uint8_t usesnr;
 } __attribute__ ((packed));
 
+
+struct cmd_ds_802_11_pa_cfg {
+	struct cmd_header hdr;
+
+	__le16 action;
+	uint8_t enable;
+	int8_t P0;
+	int8_t P1;
+	int8_t P2;
+} __attribute__ ((packed));
+
+
 struct cmd_ds_802_11_led_ctrl {
 	__le16 action;
 	__le16 numled;

drivers/net/wireless/libertas/main.c

@@ -1205,7 +1205,13 @@ void lbs_remove_card(struct lbs_private *priv)
 	cancel_delayed_work_sync(&priv->scan_work);
 	cancel_delayed_work_sync(&priv->assoc_work);
 	cancel_work_sync(&priv->mcast_work);
+
+	/* worker thread destruction blocks on the in-flight command which
+	 * should have been cleared already in lbs_stop_card().
+	 */
+	lbs_deb_main("destroying worker thread\n");
 	destroy_workqueue(priv->work_thread);
+	lbs_deb_main("done destroying worker thread\n");
 
 	if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
 		priv->psmode = LBS802_11POWERMODECAM;
@@ -1323,14 +1329,26 @@ void lbs_stop_card(struct lbs_private *priv)
 		device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
 	}
 
-	/* Flush pending command nodes */
+	/* Delete the timeout of the currently processing command */
 	del_timer_sync(&priv->command_timer);
+
+	/* Flush pending command nodes */
 	spin_lock_irqsave(&priv->driver_lock, flags);
+	lbs_deb_main("clearing pending commands\n");
 	list_for_each_entry(cmdnode, &priv->cmdpendingq, list) {
 		cmdnode->result = -ENOENT;
 		cmdnode->cmdwaitqwoken = 1;
 		wake_up_interruptible(&cmdnode->cmdwait_q);
 	}
+
+	/* Flush the command the card is currently processing */
+	if (priv->cur_cmd) {
+		lbs_deb_main("clearing current command\n");
+		priv->cur_cmd->result = -ENOENT;
+		priv->cur_cmd->cmdwaitqwoken = 1;
+		wake_up_interruptible(&priv->cur_cmd->cmdwait_q);
+	}
+	lbs_deb_main("done clearing commands\n");
 	spin_unlock_irqrestore(&priv->driver_lock, flags);
 
 	unregister_netdev(dev);

drivers/net/wireless/libertas/wext.c

@@ -1820,7 +1820,21 @@ static int lbs_set_txpow(struct net_device *dev, struct iw_request_info *info,
 	}
 
 	if (vwrq->fixed == 0) {
-		/* Auto power control */
+		/* User requests automatic tx power control, however there are
+		 * many auto tx settings.  For now use firmware defaults until
+		 * we come up with a good way to expose these to the user. */
+		if (priv->fwrelease < 0x09000000) {
+			ret = lbs_set_power_adapt_cfg(priv, 1,
+					POW_ADAPT_DEFAULT_P0,
+					POW_ADAPT_DEFAULT_P1,
+					POW_ADAPT_DEFAULT_P2);
+			if (ret)
+				goto out;
+		}
+		ret = lbs_set_tpc_cfg(priv, 0, TPC_DEFAULT_P0, TPC_DEFAULT_P1,
+				TPC_DEFAULT_P2, 1);
+		if (ret)
+			goto out;
 		dbm = priv->txpower_max;
 	} else {
 		/* Userspace check in iwrange if it should use dBm or mW,
@@ -1830,7 +1844,8 @@ static int lbs_set_txpow(struct net_device *dev, struct iw_request_info *info,
 			goto out;
 		}
 
-		/* Validate requested power level against firmware allowed levels */
+		/* Validate requested power level against firmware allowed
+		 * levels */
 		if (priv->txpower_min && (dbm < priv->txpower_min)) {
 			ret = -EINVAL;
 			goto out;
@@ -1840,6 +1855,18 @@ static int lbs_set_txpow(struct net_device *dev, struct iw_request_info *info,
 			ret = -EINVAL;
 			goto out;
 		}
+		if (priv->fwrelease < 0x09000000) {
+			ret = lbs_set_power_adapt_cfg(priv, 0,
+					POW_ADAPT_DEFAULT_P0,
+					POW_ADAPT_DEFAULT_P1,
+					POW_ADAPT_DEFAULT_P2);
+			if (ret)
+				goto out;
+		}
+		ret = lbs_set_tpc_cfg(priv, 0, TPC_DEFAULT_P0, TPC_DEFAULT_P1,
+				TPC_DEFAULT_P2, 1);
+		if (ret)
+			goto out;
 	}
 
 	/* If the radio was off, turn it on */

drivers/net/wireless/p54/p54.h

@@ -80,6 +80,7 @@ struct p54_common {
 	struct pda_channel_output_limit *output_limit;
 	unsigned int output_limit_len;
 	struct pda_pa_curve_data *curve_data;
+	unsigned int filter_flags;
 	u16 rxhw;
 	u8 version;
 	u8 rx_antenna;
@@ -87,7 +88,15 @@ struct p54_common {
 	void *cached_vdcf;
 	unsigned int fw_var;
 	unsigned int fw_interface;
+	unsigned int output_power;
+	u32 tsf_low32;
+	u32 tsf_high32;
 	struct ieee80211_tx_queue_stats tx_stats[8];
+	struct ieee80211_low_level_stats stats;
+	struct timer_list stats_timer;
+	struct completion stats_comp;
+	void *cached_stats;
+	int noise;
 	void *eeprom;
 	struct completion eeprom_comp;
 };

drivers/net/wireless/p54/p54common.c

@@ -27,7 +27,7 @@ MODULE_DESCRIPTION("Softmac Prism54 common code");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("prism54common");
 
-static struct ieee80211_rate p54_rates[] = {
+static struct ieee80211_rate p54_bgrates[] = {
 	{ .bitrate = 10, .hw_value = 0, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 	{ .bitrate = 20, .hw_value = 1, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 	{ .bitrate = 55, .hw_value = 2, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
@@ -42,7 +42,7 @@ static struct ieee80211_rate p54_rates[] = {
 	{ .bitrate = 540, .hw_value = 11, },
 };
 
-static struct ieee80211_channel p54_channels[] = {
+static struct ieee80211_channel p54_bgchannels[] = {
 	{ .center_freq = 2412, .hw_value = 1, },
 	{ .center_freq = 2417, .hw_value = 2, },
 	{ .center_freq = 2422, .hw_value = 3, },
@@ -60,10 +60,66 @@ static struct ieee80211_channel p54_channels[] = {
 };
 
 static struct ieee80211_supported_band band_2GHz = {
-	.channels = p54_channels,
-	.n_channels = ARRAY_SIZE(p54_channels),
-	.bitrates = p54_rates,
-	.n_bitrates = ARRAY_SIZE(p54_rates),
+	.channels = p54_bgchannels,
+	.n_channels = ARRAY_SIZE(p54_bgchannels),
+	.bitrates = p54_bgrates,
+	.n_bitrates = ARRAY_SIZE(p54_bgrates),
+};
+
+static struct ieee80211_rate p54_arates[] = {
+	{ .bitrate = 60, .hw_value = 4, },
+	{ .bitrate = 90, .hw_value = 5, },
+	{ .bitrate = 120, .hw_value = 6, },
+	{ .bitrate = 180, .hw_value = 7, },
+	{ .bitrate = 240, .hw_value = 8, },
+	{ .bitrate = 360, .hw_value = 9, },
+	{ .bitrate = 480, .hw_value = 10, },
+	{ .bitrate = 540, .hw_value = 11, },
+};
+
+static struct ieee80211_channel p54_achannels[] = {
+	{ .center_freq = 4920 },
+	{ .center_freq = 4940 },
+	{ .center_freq = 4960 },
+	{ .center_freq = 4980 },
+	{ .center_freq = 5040 },
+	{ .center_freq = 5060 },
+	{ .center_freq = 5080 },
+	{ .center_freq = 5170 },
+	{ .center_freq = 5180 },
+	{ .center_freq = 5190 },
+	{ .center_freq = 5200 },
+	{ .center_freq = 5210 },
+	{ .center_freq = 5220 },
+	{ .center_freq = 5230 },
+	{ .center_freq = 5240 },
+	{ .center_freq = 5260 },
+	{ .center_freq = 5280 },
+	{ .center_freq = 5300 },
+	{ .center_freq = 5320 },
+	{ .center_freq = 5500 },
+	{ .center_freq = 5520 },
+	{ .center_freq = 5540 },
+	{ .center_freq = 5560 },
+	{ .center_freq = 5580 },
+	{ .center_freq = 5600 },
+	{ .center_freq = 5620 },
+	{ .center_freq = 5640 },
+	{ .center_freq = 5660 },
+	{ .center_freq = 5680 },
+	{ .center_freq = 5700 },
+	{ .center_freq = 5745 },
+	{ .center_freq = 5765 },
+	{ .center_freq = 5785 },
+	{ .center_freq = 5805 },
+	{ .center_freq = 5825 },
+};
+
+static struct ieee80211_supported_band band_5GHz = {
+	.channels = p54_achannels,
+	.n_channels = ARRAY_SIZE(p54_achannels),
+	.bitrates = p54_arates,
+	.n_bitrates = ARRAY_SIZE(p54_arates),
 };
 
 int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw)
@@ -252,6 +308,7 @@ static int p54_convert_rev1(struct ieee80211_hw *dev,
 
 const char* p54_rf_chips[] = { "NULL", "Indigo?", "Duette",
                               "Frisbee", "Xbow", "Longbow" };
+static int p54_init_xbow_synth(struct ieee80211_hw *dev);
 
 int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
 {
@@ -371,20 +428,20 @@ int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
 	}
 
 	switch (priv->rxhw) {
-		case 4: /* XBow */
-		case 1: /* Indigo? */
-		case 2: /* Duette */
-			/* TODO: 5GHz initialization goes here */
-
-		case 3: /* Frisbee */
-		case 5: /* Longbow */
-			dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz;
-			break;
-		default:
-			printk(KERN_ERR "%s: unsupported RF-Chip\n",
-				wiphy_name(dev->wiphy));
-			err = -EINVAL;
-			goto err;
+	case 4: /* XBow */
+		p54_init_xbow_synth(dev);
+	case 1: /* Indigo? */
+	case 2: /* Duette */
+		dev->wiphy->bands[IEEE80211_BAND_5GHZ] = &band_5GHz;
+	case 3: /* Frisbee */
+	case 5: /* Longbow */
+		dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz;
+		break;
+	default:
+		printk(KERN_ERR "%s: unsupported RF-Chip\n",
+			wiphy_name(dev->wiphy));
+		err = -EINVAL;
+		goto err;
 	}
 
 	if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
@@ -424,21 +481,43 @@ int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
 }
 EXPORT_SYMBOL_GPL(p54_parse_eeprom);
 
+static int p54_rssi_to_dbm(struct ieee80211_hw *dev, int rssi)
+{
+	/* TODO: get the rssi_add & rssi_mul data from the eeprom */
+	return ((rssi * 0x83) / 64 - 400) / 4;
+}
+
 static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb)
 {
+	struct p54_common *priv = dev->priv;
 	struct p54_rx_hdr *hdr = (struct p54_rx_hdr *) skb->data;
 	struct ieee80211_rx_status rx_status = {0};
 	u16 freq = le16_to_cpu(hdr->freq);
 	size_t header_len = sizeof(*hdr);
+	u32 tsf32;
 
-	rx_status.signal = hdr->rssi;
+	if (!(hdr->magic & cpu_to_le16(0x0001))) {
+		if (priv->filter_flags & FIF_FCSFAIL)
+			rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
+		else
+			return 0;
+	}
+
+	rx_status.signal = p54_rssi_to_dbm(dev, hdr->rssi);
+	rx_status.noise = priv->noise;
 	/* XX correct? */
 	rx_status.qual = (100 * hdr->rssi) / 127;
 	rx_status.rate_idx = hdr->rate & 0xf;
 	rx_status.freq = freq;
 	rx_status.band = IEEE80211_BAND_2GHZ;
 	rx_status.antenna = hdr->antenna;
-	rx_status.mactime = le64_to_cpu(hdr->timestamp);
+
+	tsf32 = le32_to_cpu(hdr->tsf32);
+	if (tsf32 < priv->tsf_low32)
+		priv->tsf_high32++;
+	rx_status.mactime = ((u64)priv->tsf_high32) << 32 | tsf32;
+	priv->tsf_low32 = tsf32;
+
 	rx_status.flag |= RX_FLAG_TSFT;
 
 	if (hdr->magic & cpu_to_le16(0x4000))
@@ -511,7 +590,8 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
 					info->status.excessive_retries = 1;
 			}
 			info->status.retry_count = payload->retries - 1;
-			info->status.ack_signal = le16_to_cpu(payload->ack_rssi);
+			info->status.ack_signal = p54_rssi_to_dbm(dev,
+					le16_to_cpu(payload->ack_rssi));
 			skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data));
 			ieee80211_tx_status_irqsafe(dev, entry);
 			goto out;
@@ -542,6 +622,27 @@ static void p54_rx_eeprom_readback(struct ieee80211_hw *dev,
 	complete(&priv->eeprom_comp);
 }
 
+static void p54_rx_stats(struct ieee80211_hw *dev, struct sk_buff *skb)
+{
+	struct p54_common *priv = dev->priv;
+	struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data;
+	struct p54_statistics *stats = (struct p54_statistics *) hdr->data;
+	u32 tsf32 = le32_to_cpu(stats->tsf32);
+
+	if (tsf32 < priv->tsf_low32)
+		priv->tsf_high32++;
+	priv->tsf_low32 = tsf32;
+
+	priv->stats.dot11RTSFailureCount = le32_to_cpu(stats->rts_fail);
+	priv->stats.dot11RTSSuccessCount = le32_to_cpu(stats->rts_success);
+	priv->stats.dot11FCSErrorCount = le32_to_cpu(stats->rx_bad_fcs);
+
+	priv->noise = p54_rssi_to_dbm(dev, le32_to_cpu(stats->noise));
+	complete(&priv->stats_comp);
+
+	mod_timer(&priv->stats_timer, jiffies + 5 * HZ);
+}
+
 static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb)
 {
 	struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data;
@@ -552,6 +653,9 @@ static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb)
 		break;
 	case P54_CONTROL_TYPE_BBP:
 		break;
+	case P54_CONTROL_TYPE_STAT_READBACK:
+		p54_rx_stats(dev, skb);
+		break;
 	case P54_CONTROL_TYPE_EEPROM_READBACK:
 		p54_rx_eeprom_readback(dev, skb);
 		break;
@@ -753,7 +857,7 @@ static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 	txhdr->hw_queue = skb_get_queue_mapping(skb) + 4;
 	txhdr->tx_antenna = (info->antenna_sel_tx == 0) ?
 		2 : info->antenna_sel_tx - 1;
-	txhdr->output_power = 0x7f; // HW Maximum
+	txhdr->output_power = priv->output_power;
 	txhdr->cts_rate = (info->flags & IEEE80211_TX_CTL_NO_ACK) ?
 			  0 : cts_rate;
 	if (padding)
@@ -1021,12 +1125,25 @@ static int p54_start(struct ieee80211_hw *dev)
 			return -ENOMEM;
 	}
 
+	if (!priv->cached_stats) {
+		priv->cached_stats = kzalloc(sizeof(struct p54_statistics) +
+			priv->tx_hdr_len + sizeof(struct p54_control_hdr),
+			GFP_KERNEL);
+
+		if (!priv->cached_stats) {
+			kfree(priv->cached_vdcf);
+			priv->cached_vdcf = NULL;
+			return -ENOMEM;
+		}
+	}
+
 	err = priv->open(dev);
 	if (!err)
 		priv->mode = IEEE80211_IF_TYPE_MNTR;
 
 	p54_init_vdcf(dev);
 
+	mod_timer(&priv->stats_timer, jiffies + HZ);
 	return err;
 }
 
@@ -1034,9 +1151,12 @@ static void p54_stop(struct ieee80211_hw *dev)
 {
 	struct p54_common *priv = dev->priv;
 	struct sk_buff *skb;
+
+	del_timer(&priv->stats_timer);
 	while ((skb = skb_dequeue(&priv->tx_queue)))
 		kfree_skb(skb);
 	priv->stop(dev);
+	priv->tsf_high32 = priv->tsf_low32 = 0;
 	priv->mode = IEEE80211_IF_TYPE_INVALID;
 }
 
@@ -1091,6 +1211,7 @@ static int p54_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
 	mutex_lock(&priv->conf_mutex);
 	priv->rx_antenna = (conf->antenna_sel_rx == 0) ?
 		2 : conf->antenna_sel_tx - 1;
+	priv->output_power = conf->power_level << 2;
 	ret = p54_set_freq(dev, cpu_to_le16(conf->channel->center_freq));
 	p54_set_vdcf(dev);
 	mutex_unlock(&priv->conf_mutex);
@@ -1118,13 +1239,26 @@ static void p54_configure_filter(struct ieee80211_hw *dev,
 {
 	struct p54_common *priv = dev->priv;
 
-	*total_flags &= FIF_BCN_PRBRESP_PROMISC;
+	*total_flags &= FIF_BCN_PRBRESP_PROMISC |
+			FIF_PROMISC_IN_BSS |
+			FIF_FCSFAIL;
+
+	priv->filter_flags = *total_flags;
 
 	if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
 		if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
-			p54_set_filter(dev, 0, NULL);
+			p54_set_filter(dev, priv->filter_type, NULL);
 		else
-			p54_set_filter(dev, 0, priv->bssid);
+			p54_set_filter(dev, priv->filter_type, priv->bssid);
+	}
+
+	if (changed_flags & FIF_PROMISC_IN_BSS) {
+		if (*total_flags & FIF_PROMISC_IN_BSS)
+			p54_set_filter(dev, priv->filter_type |
+				cpu_to_le16(0x8), NULL);
+		else
+			p54_set_filter(dev, priv->filter_type &
+				~cpu_to_le16(0x8), priv->bssid);
 	}
 }
 
@@ -1148,10 +1282,67 @@ static int p54_conf_tx(struct ieee80211_hw *dev, u16 queue,
 	return 0;
 }
 
+static int p54_init_xbow_synth(struct ieee80211_hw *dev)
+{
+	struct p54_common *priv = dev->priv;
+	struct p54_control_hdr *hdr;
+	struct p54_tx_control_xbow_synth *xbow;
+
+	hdr = kzalloc(sizeof(*hdr) + sizeof(*xbow) +
+		      priv->tx_hdr_len, GFP_KERNEL);
+	if (!hdr)
+		return -ENOMEM;
+
+	hdr = (void *)hdr + priv->tx_hdr_len;
+	hdr->magic1 = cpu_to_le16(0x8001);
+	hdr->len = cpu_to_le16(sizeof(*xbow));
+	hdr->type = cpu_to_le16(P54_CONTROL_TYPE_XBOW_SYNTH_CFG);
+	p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*xbow));
+
+	xbow = (struct p54_tx_control_xbow_synth *) hdr->data;
+	xbow->magic1 = cpu_to_le16(0x1);
+	xbow->magic2 = cpu_to_le16(0x2);
+	xbow->freq = cpu_to_le16(5390);
+
+	priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*xbow), 1);
+
+	return 0;
+}
+
+static void p54_statistics_timer(unsigned long data)
+{
+	struct ieee80211_hw *dev = (struct ieee80211_hw *) data;
+	struct p54_common *priv = dev->priv;
+	struct p54_control_hdr *hdr;
+	struct p54_statistics *stats;
+
+	BUG_ON(!priv->cached_stats);
+
+	hdr = (void *)priv->cached_stats + priv->tx_hdr_len;
+	hdr->magic1 = cpu_to_le16(0x8000);
+	hdr->len = cpu_to_le16(sizeof(*stats));
+	hdr->type = cpu_to_le16(P54_CONTROL_TYPE_STAT_READBACK);
+	p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*stats));
+
+	priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*stats), 0);
+}
+
 static int p54_get_stats(struct ieee80211_hw *dev,
 			 struct ieee80211_low_level_stats *stats)
 {
-	/* TODO */
+	struct p54_common *priv = dev->priv;
+
+	del_timer(&priv->stats_timer);
+	p54_statistics_timer((unsigned long)dev);
+
+	if (!wait_for_completion_interruptible_timeout(&priv->stats_comp, HZ)) {
+		printk(KERN_ERR "%s: device does not respond!\n",
+			wiphy_name(dev->wiphy));
+		return -EBUSY;
+	}
+
+	memcpy(stats, &priv->stats, sizeof(*stats));
+
 	return 0;
 }
 
@@ -1193,12 +1384,12 @@ struct ieee80211_hw *p54_init_common(size_t priv_data_len)
 	skb_queue_head_init(&priv->tx_queue);
 	dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | /* not sure */
 		     IEEE80211_HW_RX_INCLUDES_FCS |
-		     IEEE80211_HW_SIGNAL_UNSPEC;
+		     IEEE80211_HW_SIGNAL_DBM |
+		     IEEE80211_HW_NOISE_DBM;
 
 	dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
 
 	dev->channel_change_time = 1000;	/* TODO: find actual value */
-	dev->max_signal = 127;
 
 	priv->tx_stats[0].limit = 1;
 	priv->tx_stats[1].limit = 1;
@@ -1206,11 +1397,15 @@ struct ieee80211_hw *p54_init_common(size_t priv_data_len)
 	priv->tx_stats[3].limit = 1;
 	priv->tx_stats[4].limit = 5;
 	dev->queues = 1;
+	priv->noise = -94;
 	dev->extra_tx_headroom = sizeof(struct p54_control_hdr) + 4 +
 				 sizeof(struct p54_tx_control_allocdata);
 
 	mutex_init(&priv->conf_mutex);
 	init_completion(&priv->eeprom_comp);
+	init_completion(&priv->stats_comp);
+	setup_timer(&priv->stats_timer, p54_statistics_timer,
+		(unsigned long)dev);
 
 	return dev;
 }
@@ -1219,6 +1414,7 @@ EXPORT_SYMBOL_GPL(p54_init_common);
 void p54_free_common(struct ieee80211_hw *dev)
 {
 	struct p54_common *priv = dev->priv;
+	kfree(priv->cached_stats);
 	kfree(priv->iq_autocal);
 	kfree(priv->output_limit);
 	kfree(priv->curve_data);

drivers/net/wireless/p54/p54common.h

@@ -185,7 +185,8 @@ struct p54_rx_hdr {
 	u8 rssi;
 	u8 quality;
 	u16 unknown2;
-	__le64 timestamp;
+	__le32 tsf32;
+	__le32 unalloc0;
 	u8 align[0];
 } __attribute__ ((packed));
 
@@ -300,4 +301,24 @@ struct p54_tx_control_vdcf {
 	__le16 frameburst;
 } __attribute__ ((packed));
 
+struct p54_statistics {
+	__le32 rx_success;
+	__le32 rx_bad_fcs;
+	__le32 rx_abort;
+	__le32 rx_abort_phy;
+	__le32 rts_success;
+	__le32 rts_fail;
+	__le32 tsf32;
+	__le32 airtime;
+	__le32 noise;
+	__le32 unkn[10]; /* CCE / CCA / RADAR */
+} __attribute__ ((packed));
+
+struct p54_tx_control_xbow_synth {
+	__le16 magic1;
+	__le16 magic2;
+	__le16 freq;
+	u32 padding[5];
+} __attribute__ ((packed));
+
 #endif /* P54COMMON_H */

drivers/net/wireless/rt2x00/Kconfig

@@ -40,11 +40,15 @@ config RT2X00_LIB_CRYPTO
 config RT2X00_LIB_RFKILL
 	boolean
 	depends on RT2X00_LIB
-	select RFKILL
+	depends on RFKILL
+	default y
 
 config RT2X00_LIB_LEDS
 	boolean
-	depends on RT2X00_LIB && NEW_LEDS
+	depends on RT2X00_LIB
+	depends on NEW_LEDS
+	depends on LEDS_CLASS
+	default y
 
 config RT2400PCI
 	tristate "Ralink rt2400 (PCI/PCMCIA) support"
@@ -57,23 +61,6 @@ config RT2400PCI
 
 	  When compiled as a module, this driver will be called "rt2400pci.ko".
 
-config RT2400PCI_RFKILL
-	bool "Ralink rt2400 rfkill support"
-	depends on RT2400PCI
-	select RT2X00_LIB_RFKILL
-	---help---
-	  This adds support for integrated rt2400 hardware that features a
-	  hardware button to control the radio state.
-	  This feature depends on the RF switch subsystem rfkill.
-
-config RT2400PCI_LEDS
-	bool "Ralink rt2400 leds support"
-	depends on RT2400PCI && NEW_LEDS
-	select LEDS_CLASS
-	select RT2X00_LIB_LEDS
-	---help---
-	  This adds support for led triggers provided my mac80211.
-
 config RT2500PCI
 	tristate "Ralink rt2500 (PCI/PCMCIA) support"
 	depends on PCI
@@ -85,23 +72,6 @@ config RT2500PCI
 
 	  When compiled as a module, this driver will be called "rt2500pci.ko".
 
-config RT2500PCI_RFKILL
-	bool "Ralink rt2500 rfkill support"
-	depends on RT2500PCI
-	select RT2X00_LIB_RFKILL
-	---help---
-	  This adds support for integrated rt2500 hardware that features a
-	  hardware button to control the radio state.
-	  This feature depends on the RF switch subsystem rfkill.
-
-config RT2500PCI_LEDS
-	bool "Ralink rt2500 leds support"
-	depends on RT2500PCI && NEW_LEDS
-	select LEDS_CLASS
-	select RT2X00_LIB_LEDS
-	---help---
-	  This adds support for led triggers provided my mac80211.
-
 config RT61PCI
 	tristate "Ralink rt2501/rt61 (PCI/PCMCIA) support"
 	depends on PCI
@@ -116,23 +86,6 @@ config RT61PCI
 
 	  When compiled as a module, this driver will be called "rt61pci.ko".
 
-config RT61PCI_RFKILL
-	bool "Ralink rt2501/rt61 rfkill support"
-	depends on RT61PCI
-	select RT2X00_LIB_RFKILL
-	---help---
-	  This adds support for integrated rt61 hardware that features a
-	  hardware button to control the radio state.
-	  This feature depends on the RF switch subsystem rfkill.
-
-config RT61PCI_LEDS
-	bool "Ralink rt2501/rt61 leds support"
-	depends on RT61PCI && NEW_LEDS
-	select LEDS_CLASS
-	select RT2X00_LIB_LEDS
-	---help---
-	  This adds support for led triggers provided my mac80211.
-
 config RT2500USB
 	tristate "Ralink rt2500 (USB) support"
 	depends on USB
@@ -143,14 +96,6 @@ config RT2500USB
 
 	  When compiled as a module, this driver will be called "rt2500usb.ko".
 
-config RT2500USB_LEDS
-	bool "Ralink rt2500 leds support"
-	depends on RT2500USB && NEW_LEDS
-	select LEDS_CLASS
-	select RT2X00_LIB_LEDS
-	---help---
-	  This adds support for led triggers provided my mac80211.
-
 config RT73USB
 	tristate "Ralink rt2501/rt73 (USB) support"
 	depends on USB
@@ -164,14 +109,6 @@ config RT73USB
 
 	  When compiled as a module, this driver will be called "rt73usb.ko".
 
-config RT73USB_LEDS
-	bool "Ralink rt2501/rt73 leds support"
-	depends on RT73USB && NEW_LEDS
-	select LEDS_CLASS
-	select RT2X00_LIB_LEDS
-	---help---
-	  This adds support for led triggers provided my mac80211.
-
 config RT2X00_LIB_DEBUGFS
 	bool "Ralink debugfs support"
 	depends on RT2X00_LIB && MAC80211_DEBUGFS

drivers/net/wireless/rt2x00/rt2400pci.c

@@ -231,7 +231,7 @@ static const struct rt2x00debug rt2400pci_rt2x00debug = {
 };
 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 
-#ifdef CONFIG_RT2400PCI_RFKILL
+#ifdef CONFIG_RT2X00_LIB_RFKILL
 static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 {
 	u32 reg;
@@ -241,9 +241,9 @@ static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 }
 #else
 #define rt2400pci_rfkill_poll	NULL
-#endif /* CONFIG_RT2400PCI_RFKILL */
+#endif /* CONFIG_RT2X00_LIB_RFKILL */
 
-#ifdef CONFIG_RT2400PCI_LEDS
+#ifdef CONFIG_RT2X00_LIB_LEDS
 static void rt2400pci_brightness_set(struct led_classdev *led_cdev,
 				     enum led_brightness brightness)
 {
@@ -288,7 +288,7 @@ static void rt2400pci_init_led(struct rt2x00_dev *rt2x00dev,
 	led->led_dev.blink_set = rt2400pci_blink_set;
 	led->flags = LED_INITIALIZED;
 }
-#endif /* CONFIG_RT2400PCI_LEDS */
+#endif /* CONFIG_RT2X00_LIB_LEDS */
 
 /*
  * Configuration handlers.
@@ -1374,22 +1374,22 @@ static int rt2400pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
 	/*
 	 * Store led mode, for correct led behaviour.
 	 */
-#ifdef CONFIG_RT2400PCI_LEDS
+#ifdef CONFIG_RT2X00_LIB_LEDS
 	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
 
 	rt2400pci_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
 	if (value == LED_MODE_TXRX_ACTIVITY)
 		rt2400pci_init_led(rt2x00dev, &rt2x00dev->led_qual,
 				   LED_TYPE_ACTIVITY);
-#endif /* CONFIG_RT2400PCI_LEDS */
+#endif /* CONFIG_RT2X00_LIB_LEDS */
 
 	/*
 	 * Detect if this device has an hardware controlled radio.
 	 */
-#ifdef CONFIG_RT2400PCI_RFKILL
+#ifdef CONFIG_RT2X00_LIB_RFKILL
 	if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
 		__set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
-#endif /* CONFIG_RT2400PCI_RFKILL */
+#endif /* CONFIG_RT2X00_LIB_RFKILL */
 
 	/*
 	 * Check if the BBP tuning should be enabled.

drivers/net/wireless/rt2x00/rt2500pci.c

@@ -231,7 +231,7 @@ static const struct rt2x00debug rt2500pci_rt2x00debug = {
 };
 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 
-#ifdef CONFIG_RT2500PCI_RFKILL
+#ifdef CONFIG_RT2X00_LIB_RFKILL
 static int rt2500pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 {
 	u32 reg;
@@ -241,9 +241,9 @@ static int rt2500pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 }
 #else
 #define rt2500pci_rfkill_poll	NULL
-#endif /* CONFIG_RT2500PCI_RFKILL */
+#endif /* CONFIG_RT2X00_LIB_RFKILL */
 
-#ifdef CONFIG_RT2500PCI_LEDS
+#ifdef CONFIG_RT2X00_LIB_LEDS
 static void rt2500pci_brightness_set(struct led_classdev *led_cdev,
 				     enum led_brightness brightness)
 {
@@ -288,7 +288,7 @@ static void rt2500pci_init_led(struct rt2x00_dev *rt2x00dev,
 	led->led_dev.blink_set = rt2500pci_blink_set;
 	led->flags = LED_INITIALIZED;
 }
-#endif /* CONFIG_RT2500PCI_LEDS */
+#endif /* CONFIG_RT2X00_LIB_LEDS */
 
 /*
  * Configuration handlers.
@@ -1533,22 +1533,22 @@ static int rt2500pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
 	/*
 	 * Store led mode, for correct led behaviour.
 	 */
-#ifdef CONFIG_RT2500PCI_LEDS
+#ifdef CONFIG_RT2X00_LIB_LEDS
 	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
 
 	rt2500pci_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
 	if (value == LED_MODE_TXRX_ACTIVITY)
 		rt2500pci_init_led(rt2x00dev, &rt2x00dev->led_qual,
 				   LED_TYPE_ACTIVITY);
-#endif /* CONFIG_RT2500PCI_LEDS */
+#endif /* CONFIG_RT2X00_LIB_LEDS */
 
 	/*
 	 * Detect if this device has an hardware controlled radio.
 	 */
-#ifdef CONFIG_RT2500PCI_RFKILL
+#ifdef CONFIG_RT2X00_LIB_RFKILL
 	if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
 		__set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
-#endif /* CONFIG_RT2500PCI_RFKILL */
+#endif /* CONFIG_RT2X00_LIB_RFKILL */
 
 	/*
 	 * Check if the BBP tuning should be enabled.

drivers/net/wireless/rt2x00/rt2500usb.c

@@ -288,7 +288,7 @@ static const struct rt2x00debug rt2500usb_rt2x00debug = {
 };
 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 
-#ifdef CONFIG_RT2500USB_LEDS
+#ifdef CONFIG_RT2X00_LIB_LEDS
 static void rt2500usb_brightness_set(struct led_classdev *led_cdev,
 				     enum led_brightness brightness)
 {
@@ -333,7 +333,7 @@ static void rt2500usb_init_led(struct rt2x00_dev *rt2x00dev,
 	led->led_dev.blink_set = rt2500usb_blink_set;
 	led->flags = LED_INITIALIZED;
 }
-#endif /* CONFIG_RT2500USB_LEDS */
+#endif /* CONFIG_RT2X00_LIB_LEDS */
 
 /*
  * Configuration handlers.
@@ -1133,7 +1133,6 @@ static void rt2500usb_write_beacon(struct queue_entry *entry)
 	int pipe = usb_sndbulkpipe(usb_dev, 1);
 	int length;
 	u16 reg;
-	u32 word, len;
 
 	/*
 	 * Add the descriptor in front of the skb.
@@ -1142,17 +1141,6 @@ static void rt2500usb_write_beacon(struct queue_entry *entry)
 	memcpy(entry->skb->data, skbdesc->desc, skbdesc->desc_len);
 	skbdesc->desc = entry->skb->data;
 
-	/*
-	 * Adjust the beacon databyte count. The current number is
-	 * calculated before this function gets called, but falsely
-	 * assumes that the descriptor was already present in the SKB.
-	 */
-	rt2x00_desc_read(skbdesc->desc, 0, &word);
-	len  = rt2x00_get_field32(word, TXD_W0_DATABYTE_COUNT);
-	len += skbdesc->desc_len;
-	rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, len);
-	rt2x00_desc_write(skbdesc->desc, 0, word);
-
 	/*
 	 * Disable beaconing while we are reloading the beacon data,
 	 * otherwise we might be sending out invalid data.
@@ -1485,14 +1473,14 @@ static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
 	/*
 	 * Store led mode, for correct led behaviour.
 	 */
-#ifdef CONFIG_RT2500USB_LEDS
+#ifdef CONFIG_RT2X00_LIB_LEDS
 	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
 
 	rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
 	if (value == LED_MODE_TXRX_ACTIVITY)
 		rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
 				   LED_TYPE_ACTIVITY);
-#endif /* CONFIG_RT2500USB_LEDS */
+#endif /* CONFIG_RT2X00_LIB_LEDS */
 
 	/*
 	 * Check if the BBP tuning should be disabled.

drivers/net/wireless/rt2x00/rt2x00rfkill.c

@@ -45,16 +45,15 @@ static int rt2x00rfkill_toggle_radio(void *data, enum rfkill_state state)
 		return 0;
 
 	if (state == RFKILL_STATE_UNBLOCKED) {
-		INFO(rt2x00dev, "Hardware button pressed, enabling radio.\n");
+		INFO(rt2x00dev, "RFKILL event: enabling radio.\n");
 		clear_bit(DEVICE_STATE_DISABLED_RADIO_HW, &rt2x00dev->flags);
 		retval = rt2x00lib_enable_radio(rt2x00dev);
 	} else if (state == RFKILL_STATE_SOFT_BLOCKED) {
-		INFO(rt2x00dev, "Hardware button pressed, disabling radio.\n");
+		INFO(rt2x00dev, "RFKILL event: disabling radio.\n");
 		set_bit(DEVICE_STATE_DISABLED_RADIO_HW, &rt2x00dev->flags);
 		rt2x00lib_disable_radio(rt2x00dev);
 	} else {
-		WARNING(rt2x00dev, "Received unexpected rfkill state %d.\n",
-			state);
+		WARNING(rt2x00dev, "RFKILL event: unknown state %d.\n", state);
 	}
 
 	return retval;
@@ -64,7 +63,12 @@ static int rt2x00rfkill_get_state(void *data, enum rfkill_state *state)
 {
 	struct rt2x00_dev *rt2x00dev = data;
 
-	*state = rt2x00dev->rfkill->state;
+	/*
+	 * rfkill_poll reports 1 when the key has been pressed and the
+	 * radio should be blocked.
+	 */
+	*state = rt2x00dev->ops->lib->rfkill_poll(rt2x00dev) ?
+	    RFKILL_STATE_SOFT_BLOCKED : RFKILL_STATE_UNBLOCKED;
 
 	return 0;
 }
@@ -73,19 +77,18 @@ static void rt2x00rfkill_poll(struct work_struct *work)
 {
 	struct rt2x00_dev *rt2x00dev =
 	    container_of(work, struct rt2x00_dev, rfkill_work.work);
-	int state;
+	enum rfkill_state state;
 
-	if (!test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state))
+	if (!test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state) ||
+	    !test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
 		return;
 
 	/*
-	 * rfkill_poll reports 1 when the key has been pressed and the
-	 * radio should be blocked.
+	 * Poll latest state and report it to rfkill who should sort
+	 * out if the state should be toggled or not.
 	 */
-	state = !rt2x00dev->ops->lib->rfkill_poll(rt2x00dev) ?
-	    RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
-
-	rfkill_force_state(rt2x00dev->rfkill, state);
+	if (!rt2x00rfkill_get_state(rt2x00dev, &state))
+		rfkill_force_state(rt2x00dev->rfkill, state);
 
 	queue_delayed_work(rt2x00dev->hw->workqueue,
 			   &rt2x00dev->rfkill_work, RFKILL_POLL_INTERVAL);
@@ -93,8 +96,8 @@ static void rt2x00rfkill_poll(struct work_struct *work)
 
 void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
 {
-	if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) ||
-	    !test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state))
+	if (!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state) ||
+	    test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state))
 		return;
 
 	if (rfkill_register(rt2x00dev->rfkill)) {
@@ -114,7 +117,7 @@ void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
 
 void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
 {
-	if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) ||
+	if (!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state) ||
 	    !test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state))
 		return;
 
@@ -127,21 +130,25 @@ void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
 
 void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev)
 {
-	if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
+	struct device *dev = wiphy_dev(rt2x00dev->hw->wiphy);
+
+	if (test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state))
 		return;
 
-	rt2x00dev->rfkill =
-	    rfkill_allocate(wiphy_dev(rt2x00dev->hw->wiphy), RFKILL_TYPE_WLAN);
+	rt2x00dev->rfkill = rfkill_allocate(dev, RFKILL_TYPE_WLAN);
 	if (!rt2x00dev->rfkill) {
 		ERROR(rt2x00dev, "Failed to allocate rfkill handler.\n");
 		return;
 	}
 
+	__set_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state);
+
 	rt2x00dev->rfkill->name = rt2x00dev->ops->name;
 	rt2x00dev->rfkill->data = rt2x00dev;
 	rt2x00dev->rfkill->state = -1;
 	rt2x00dev->rfkill->toggle_radio = rt2x00rfkill_toggle_radio;
-	rt2x00dev->rfkill->get_state = rt2x00rfkill_get_state;
+	if (test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
+		rt2x00dev->rfkill->get_state = rt2x00rfkill_get_state;
 
 	INIT_DELAYED_WORK(&rt2x00dev->rfkill_work, rt2x00rfkill_poll);
 
@@ -150,8 +157,7 @@ void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev)
 
 void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev)
 {
-	if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) ||
-	    !test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state))
+	if (!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->flags))
 		return;
 
 	cancel_delayed_work_sync(&rt2x00dev->rfkill_work);

drivers/net/wireless/rt2x00/rt61pci.c

@@ -163,7 +163,7 @@ rf_write:
 	rt2x00_rf_write(rt2x00dev, word, value);
 }
 
-#ifdef CONFIG_RT61PCI_LEDS
+#ifdef CONFIG_RT2X00_LIB_LEDS
 /*
  * This function is only called from rt61pci_led_brightness()
  * make gcc happy by placing this function inside the
@@ -195,7 +195,7 @@ static void rt61pci_mcu_request(struct rt2x00_dev *rt2x00dev,
 	rt2x00_set_field32(&reg, HOST_CMD_CSR_INTERRUPT_MCU, 1);
 	rt2x00pci_register_write(rt2x00dev, HOST_CMD_CSR, reg);
 }
-#endif /* CONFIG_RT61PCI_LEDS */
+#endif /* CONFIG_RT2X00_LIB_LEDS */
 
 static void rt61pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
 {
@@ -271,7 +271,7 @@ static const struct rt2x00debug rt61pci_rt2x00debug = {
 };
 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 
-#ifdef CONFIG_RT61PCI_RFKILL
+#ifdef CONFIG_RT2X00_LIB_RFKILL
 static int rt61pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 {
 	u32 reg;
@@ -281,9 +281,9 @@ static int rt61pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 }
 #else
 #define rt61pci_rfkill_poll	NULL
-#endif /* CONFIG_RT61PCI_RFKILL */
+#endif /* CONFIG_RT2X00_LIB_RFKILL */
 
-#ifdef CONFIG_RT61PCI_LEDS
+#ifdef CONFIG_RT2X00_LIB_LEDS
 static void rt61pci_brightness_set(struct led_classdev *led_cdev,
 				   enum led_brightness brightness)
 {
@@ -348,7 +348,7 @@ static void rt61pci_init_led(struct rt2x00_dev *rt2x00dev,
 	led->led_dev.blink_set = rt61pci_blink_set;
 	led->flags = LED_INITIALIZED;
 }
-#endif /* CONFIG_RT61PCI_LEDS */
+#endif /* CONFIG_RT2X00_LIB_LEDS */
 
 /*
  * Configuration handlers.
@@ -2313,10 +2313,10 @@ static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
 	/*
 	 * Detect if this device has an hardware controlled radio.
 	 */
-#ifdef CONFIG_RT61PCI_RFKILL
+#ifdef CONFIG_RT2X00_LIB_RFKILL
 	if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
 		__set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
-#endif /* CONFIG_RT61PCI_RFKILL */
+#endif /* CONFIG_RT2X00_LIB_RFKILL */
 
 	/*
 	 * Read frequency offset and RF programming sequence.
@@ -2374,7 +2374,7 @@ static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
 	 * If the eeprom value is invalid,
 	 * switch to default led mode.
 	 */
-#ifdef CONFIG_RT61PCI_LEDS
+#ifdef CONFIG_RT2X00_LIB_LEDS
 	rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom);
 	value = rt2x00_get_field16(eeprom, EEPROM_LED_LED_MODE);
 
@@ -2408,7 +2408,7 @@ static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
 	rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_A,
 			   rt2x00_get_field16(eeprom,
 					      EEPROM_LED_POLARITY_RDY_A));
-#endif /* CONFIG_RT61PCI_LEDS */
+#endif /* CONFIG_RT2X00_LIB_LEDS */
 
 	return 0;
 }

drivers/net/wireless/rt2x00/rt73usb.c

@@ -292,7 +292,7 @@ static const struct rt2x00debug rt73usb_rt2x00debug = {
 };
 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 
-#ifdef CONFIG_RT73USB_LEDS
+#ifdef CONFIG_RT2X00_LIB_LEDS
 static void rt73usb_brightness_set(struct led_classdev *led_cdev,
 				   enum led_brightness brightness)
 {
@@ -359,7 +359,7 @@ static void rt73usb_init_led(struct rt2x00_dev *rt2x00dev,
 	led->led_dev.blink_set = rt73usb_blink_set;
 	led->flags = LED_INITIALIZED;
 }
-#endif /* CONFIG_RT73USB_LEDS */
+#endif /* CONFIG_RT2X00_LIB_LEDS */
 
 /*
  * Configuration handlers.
@@ -1572,7 +1572,6 @@ static void rt73usb_write_beacon(struct queue_entry *entry)
 	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
 	unsigned int beacon_base;
 	u32 reg;
-	u32 word, len;
 
 	/*
 	 * Add the descriptor in front of the skb.
@@ -1581,17 +1580,6 @@ static void rt73usb_write_beacon(struct queue_entry *entry)
 	memcpy(entry->skb->data, skbdesc->desc, skbdesc->desc_len);
 	skbdesc->desc = entry->skb->data;
 
-	/*
-	 * Adjust the beacon databyte count. The current number is
-	 * calculated before this function gets called, but falsely
-	 * assumes that the descriptor was already present in the SKB.
-	 */
-	rt2x00_desc_read(skbdesc->desc, 0, &word);
-	len  = rt2x00_get_field32(word, TXD_W0_DATABYTE_COUNT);
-	len += skbdesc->desc_len;
-	rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, len);
-	rt2x00_desc_write(skbdesc->desc, 0, word);
-
 	/*
 	 * Disable beaconing while we are reloading the beacon data,
 	 * otherwise we might be sending out invalid data.
@@ -1944,7 +1932,7 @@ static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
 	/*
 	 * Store led settings, for correct led behaviour.
 	 */
-#ifdef CONFIG_RT73USB_LEDS
+#ifdef CONFIG_RT2X00_LIB_LEDS
 	rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom);
 
 	rt73usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
@@ -1977,7 +1965,7 @@ static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
 	rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_A,
 			   rt2x00_get_field16(eeprom,
 					      EEPROM_LED_POLARITY_RDY_A));
-#endif /* CONFIG_RT73USB_LEDS */
+#endif /* CONFIG_RT2X00_LIB_LEDS */
 
 	return 0;
 }

include/linux/ieee80211.h

@@ -643,6 +643,9 @@ struct ieee80211_mgmt {
 	} u;
 } __attribute__ ((packed));
 
+/* mgmt header + 1 byte category code */
+#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
+
 
 /* Control frames */
 struct ieee80211_rts {
@@ -708,7 +711,7 @@ struct ieee80211_ht_addt_info {
 
 /* 802.11n HT capabilities masks */
 #define IEEE80211_HT_CAP_SUP_WIDTH		0x0002
-#define IEEE80211_HT_CAP_MIMO_PS		0x000C
+#define IEEE80211_HT_CAP_SM_PS			0x000C
 #define IEEE80211_HT_CAP_GRN_FLD		0x0010
 #define IEEE80211_HT_CAP_SGI_20			0x0020
 #define IEEE80211_HT_CAP_SGI_40			0x0040
@@ -737,11 +740,26 @@ struct ieee80211_ht_addt_info {
 #define IEEE80211_HT_IE_NON_GF_STA_PRSNT	0x0004
 #define IEEE80211_HT_IE_NON_HT_STA_PRSNT	0x0010
 
-/* MIMO Power Save Modes */
-#define WLAN_HT_CAP_MIMO_PS_STATIC	0
-#define WLAN_HT_CAP_MIMO_PS_DYNAMIC	1
-#define WLAN_HT_CAP_MIMO_PS_INVALID	2
-#define WLAN_HT_CAP_MIMO_PS_DISABLED	3
+/* block-ack parameters */
+#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
+#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
+#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
+#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
+#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
+
+/*
+ * A-PMDU buffer sizes
+ * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
+ */
+#define IEEE80211_MIN_AMPDU_BUF 0x8
+#define IEEE80211_MAX_AMPDU_BUF 0x40
+
+
+/* Spatial Multiplexing Power Save Modes */
+#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
 
 /* Authentication algorithms */
 #define WLAN_AUTH_OPEN 0

include/net/mac80211.h

@@ -1142,7 +1142,7 @@ enum ieee80211_ampdu_mlme_action {
  *	of assocaited station or AP.
  *
  * @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max),
- *	bursting) for a hardware TX queue. Must be atomic.
+ *	bursting) for a hardware TX queue.
  *
  * @get_tx_stats: Get statistics of the current TX queue status. This is used
  *	to get number of currently queued packets (queue length), maximum queue

net/mac80211/Makefile

@@ -7,6 +7,8 @@ mac80211-y := \
 	sta_info.o \
 	wep.o \
 	wpa.o \
+	scan.o \
+	ht.o \
 	mlme.o \
 	iface.o \
 	rate.o \
@@ -15,6 +17,7 @@ mac80211-y := \
 	aes_ccm.o \
 	cfg.o \
 	rx.o \
+	spectmgmt.o \
 	tx.o \
 	key.o \
 	util.o \

net/mac80211/ht.c

@@ -0,0 +1,992 @@
+/*
+ * HT handling
+ *
+ * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
+ * Copyright 2007-2008, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/ieee80211.h>
+#include <net/wireless.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "sta_info.h"
+#include "wme.h"
+
+int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
+				   struct ieee80211_ht_info *ht_info)
+{
+
+	if (ht_info == NULL)
+		return -EINVAL;
+
+	memset(ht_info, 0, sizeof(*ht_info));
+
+	if (ht_cap_ie) {
+		u8 ampdu_info = ht_cap_ie->ampdu_params_info;
+
+		ht_info->ht_supported = 1;
+		ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info);
+		ht_info->ampdu_factor =
+			ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR;
+		ht_info->ampdu_density =
+			(ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2;
+		memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16);
+	} else
+		ht_info->ht_supported = 0;
+
+	return 0;
+}
+
+int ieee80211_ht_addt_info_ie_to_ht_bss_info(
+			struct ieee80211_ht_addt_info *ht_add_info_ie,
+			struct ieee80211_ht_bss_info *bss_info)
+{
+	if (bss_info == NULL)
+		return -EINVAL;
+
+	memset(bss_info, 0, sizeof(*bss_info));
+
+	if (ht_add_info_ie) {
+		u16 op_mode;
+		op_mode = le16_to_cpu(ht_add_info_ie->operation_mode);
+
+		bss_info->primary_channel = ht_add_info_ie->control_chan;
+		bss_info->bss_cap = ht_add_info_ie->ht_param;
+		bss_info->bss_op_mode = (u8)(op_mode & 0xff);
+	}
+
+	return 0;
+}
+
+static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata,
+					 const u8 *da, u16 tid,
+					 u8 dialog_token, u16 start_seq_num,
+					 u16 agg_size, u16 timeout)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	u16 capab;
+
+	skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
+
+	if (!skb) {
+		printk(KERN_ERR "%s: failed to allocate buffer "
+				"for addba request frame\n", sdata->dev->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);
+	if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
+		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
+	else
+		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_ACTION);
+
+	skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_req));
+
+	mgmt->u.action.category = WLAN_CATEGORY_BACK;
+	mgmt->u.action.u.addba_req.action_code = WLAN_ACTION_ADDBA_REQ;
+
+	mgmt->u.action.u.addba_req.dialog_token = dialog_token;
+	capab = (u16)(1 << 1);		/* bit 1 aggregation policy */
+	capab |= (u16)(tid << 2); 	/* bit 5:2 TID number */
+	capab |= (u16)(agg_size << 6);	/* bit 15:6 max size of aggergation */
+
+	mgmt->u.action.u.addba_req.capab = cpu_to_le16(capab);
+
+	mgmt->u.action.u.addba_req.timeout = cpu_to_le16(timeout);
+	mgmt->u.action.u.addba_req.start_seq_num =
+					cpu_to_le16(start_seq_num << 4);
+
+	ieee80211_tx_skb(sdata, skb, 0);
+}
+
+static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *da, u16 tid,
+				      u8 dialog_token, u16 status, u16 policy,
+				      u16 buf_size, u16 timeout)
+{
+	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_local *local = sdata->local;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	u16 capab;
+
+	skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
+
+	if (!skb) {
+		printk(KERN_DEBUG "%s: failed to allocate buffer "
+		       "for addba resp frame\n", sdata->dev->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);
+	if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
+		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
+	else
+		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_ACTION);
+
+	skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp));
+	mgmt->u.action.category = WLAN_CATEGORY_BACK;
+	mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP;
+	mgmt->u.action.u.addba_resp.dialog_token = dialog_token;
+
+	capab = (u16)(policy << 1);	/* bit 1 aggregation policy */
+	capab |= (u16)(tid << 2); 	/* bit 5:2 TID number */
+	capab |= (u16)(buf_size << 6);	/* bit 15:6 max size of aggregation */
+
+	mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab);
+	mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout);
+	mgmt->u.action.u.addba_resp.status = cpu_to_le16(status);
+
+	ieee80211_tx_skb(sdata, skb, 0);
+}
+
+static void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
+				 const u8 *da, u16 tid,
+				 u16 initiator, u16 reason_code)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	u16 params;
+
+	skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
+
+	if (!skb) {
+		printk(KERN_ERR "%s: failed to allocate buffer "
+					"for delba frame\n", sdata->dev->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);
+	if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
+		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
+	else
+		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_ACTION);
+
+	skb_put(skb, 1 + sizeof(mgmt->u.action.u.delba));
+
+	mgmt->u.action.category = WLAN_CATEGORY_BACK;
+	mgmt->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
+	params = (u16)(initiator << 11); 	/* bit 11 initiator */
+	params |= (u16)(tid << 12); 		/* bit 15:12 TID number */
+
+	mgmt->u.action.u.delba.params = cpu_to_le16(params);
+	mgmt->u.action.u.delba.reason_code = cpu_to_le16(reason_code);
+
+	ieee80211_tx_skb(sdata, skb, 0);
+}
+
+void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct sk_buff *skb;
+	struct ieee80211_bar *bar;
+	u16 bar_control = 0;
+
+	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);
+		return;
+	}
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+	bar = (struct ieee80211_bar *)skb_put(skb, sizeof(*bar));
+	memset(bar, 0, sizeof(*bar));
+	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);
+	bar_control |= (u16)IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL;
+	bar_control |= (u16)IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA;
+	bar_control |= (u16)(tid << 12);
+	bar->control = cpu_to_le16(bar_control);
+	bar->start_seq_num = cpu_to_le16(ssn);
+
+	ieee80211_tx_skb(sdata, skb, 0);
+}
+
+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 ieee80211_hw *hw = &local->hw;
+	struct sta_info *sta;
+	int ret, i;
+	DECLARE_MAC_BUF(mac);
+
+	rcu_read_lock();
+
+	sta = sta_info_get(local, ra);
+	if (!sta) {
+		rcu_read_unlock();
+		return;
+	}
+
+	/* check if TID is in operational state */
+	spin_lock_bh(&sta->lock);
+	if (sta->ampdu_mlme.tid_state_rx[tid]
+				!= HT_AGG_STATE_OPERATIONAL) {
+		spin_unlock_bh(&sta->lock);
+		rcu_read_unlock();
+		return;
+	}
+	sta->ampdu_mlme.tid_state_rx[tid] =
+		HT_AGG_STATE_REQ_STOP_BA_MSK |
+		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
+	spin_unlock_bh(&sta->lock);
+
+	/* stop HW Rx aggregation. ampdu_action existence
+	 * already verified in session init so we add the BUG_ON */
+	BUG_ON(!local->ops->ampdu_action);
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "Rx BA session stop requested for %s tid %u\n",
+				print_mac(mac, ra), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+	ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP,
+					ra, tid, NULL);
+	if (ret)
+		printk(KERN_DEBUG "HW problem - can not stop rx "
+				"aggregation for tid %d\n", tid);
+
+	/* shutdown timer has not expired */
+	if (initiator != WLAN_BACK_TIMER)
+		del_timer_sync(&sta->ampdu_mlme.tid_rx[tid]->session_timer);
+
+	/* check if this is a self generated aggregation halt */
+	if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER)
+		ieee80211_send_delba(sdata, ra, tid, 0, reason);
+
+	/* free the reordering buffer */
+	for (i = 0; i < sta->ampdu_mlme.tid_rx[tid]->buf_size; i++) {
+		if (sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]) {
+			/* release the reordered frames */
+			dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]);
+			sta->ampdu_mlme.tid_rx[tid]->stored_mpdu_num--;
+			sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i] = NULL;
+		}
+	}
+	/* free resources */
+	kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_buf);
+	kfree(sta->ampdu_mlme.tid_rx[tid]);
+	sta->ampdu_mlme.tid_rx[tid] = NULL;
+	sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_IDLE;
+
+	rcu_read_unlock();
+}
+
+
+/*
+ * After sending add Block Ack request we activated a timer until
+ * add Block Ack response will arrive from the recipient.
+ * If this timer expires sta_addba_resp_timer_expired will be executed.
+ */
+static void sta_addba_resp_timer_expired(unsigned long data)
+{
+	/* not an elegant detour, but there is no choice as the timer passes
+	 * only one argument, and both sta_info and TID are needed, so init
+	 * flow in sta_info_create gives the TID as data, while the timer_to_id
+	 * array gives the sta through container_of */
+	u16 tid = *(u8 *)data;
+	struct sta_info *temp_sta = container_of((void *)data,
+		struct sta_info, timer_to_tid[tid]);
+
+	struct ieee80211_local *local = temp_sta->local;
+	struct ieee80211_hw *hw = &local->hw;
+	struct sta_info *sta;
+	u8 *state;
+
+	rcu_read_lock();
+
+	sta = sta_info_get(local, temp_sta->addr);
+	if (!sta) {
+		rcu_read_unlock();
+		return;
+	}
+
+	state = &sta->ampdu_mlme.tid_state_tx[tid];
+	/* check if the TID waits for addBA response */
+	spin_lock_bh(&sta->lock);
+	if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+		spin_unlock_bh(&sta->lock);
+		*state = HT_AGG_STATE_IDLE;
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "timer expired on tid %d but we are not "
+				"expecting addBA response there", tid);
+#endif
+		goto timer_expired_exit;
+	}
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid);
+#endif
+
+	/* go through the state check in stop_BA_session */
+	*state = HT_AGG_STATE_OPERATIONAL;
+	spin_unlock_bh(&sta->lock);
+	ieee80211_stop_tx_ba_session(hw, temp_sta->addr, tid,
+				     WLAN_BACK_INITIATOR);
+
+timer_expired_exit:
+	rcu_read_unlock();
+}
+
+void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr)
+{
+	struct ieee80211_local *local = sdata->local;
+	int i;
+
+	for (i = 0; i <  STA_TID_NUM; i++) {
+		ieee80211_stop_tx_ba_session(&local->hw, addr, i,
+					     WLAN_BACK_INITIATOR);
+		ieee80211_sta_stop_rx_ba_session(sdata, addr, i,
+						 WLAN_BACK_RECIPIENT,
+						 WLAN_REASON_QSTA_LEAVE_QBSS);
+	}
+}
+
+int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct sta_info *sta;
+	struct ieee80211_sub_if_data *sdata;
+	u16 start_seq_num;
+	u8 *state;
+	int ret;
+	DECLARE_MAC_BUF(mac);
+
+	if (tid >= STA_TID_NUM)
+		return -EINVAL;
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "Open BA session requested for %s tid %u\n",
+				print_mac(mac, ra), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+	rcu_read_lock();
+
+	sta = sta_info_get(local, ra);
+	if (!sta) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "Could not find the station\n");
+#endif
+		ret = -ENOENT;
+		goto exit;
+	}
+
+	spin_lock_bh(&sta->lock);
+
+	/* we have tried too many times, receiver does not want A-MPDU */
+	if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_MAX_RETRIES) {
+		ret = -EBUSY;
+		goto err_unlock_sta;
+	}
+
+	state = &sta->ampdu_mlme.tid_state_tx[tid];
+	/* check if the TID is not in aggregation flow already */
+	if (*state != HT_AGG_STATE_IDLE) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "BA request denied - session is not "
+				 "idle on tid %u\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+		ret = -EAGAIN;
+		goto err_unlock_sta;
+	}
+
+	/* prepare A-MPDU MLME for Tx aggregation */
+	sta->ampdu_mlme.tid_tx[tid] =
+			kmalloc(sizeof(struct tid_ampdu_tx), GFP_ATOMIC);
+	if (!sta->ampdu_mlme.tid_tx[tid]) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		if (net_ratelimit())
+			printk(KERN_ERR "allocate tx mlme to tid %d failed\n",
+					tid);
+#endif
+		ret = -ENOMEM;
+		goto err_unlock_sta;
+	}
+	/* Tx timer */
+	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.function =
+			sta_addba_resp_timer_expired;
+	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.data =
+			(unsigned long)&sta->timer_to_tid[tid];
+	init_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
+
+	/* create a new queue for this aggregation */
+	ret = ieee80211_ht_agg_queue_add(local, sta, tid);
+
+	/* case no queue is available to aggregation
+	 * don't switch to aggregation */
+	if (ret) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "BA request denied - queue unavailable for"
+					" tid %d\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+		goto err_unlock_queue;
+	}
+	sdata = sta->sdata;
+
+	/* Ok, the Addba frame hasn't been sent yet, but if the driver calls the
+	 * call back right away, it must see that the flow has begun */
+	*state |= HT_ADDBA_REQUESTED_MSK;
+
+	/* This is slightly racy because the queue isn't stopped */
+	start_seq_num = sta->tid_seq[tid];
+
+	if (local->ops->ampdu_action)
+		ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START,
+						ra, tid, &start_seq_num);
+
+	if (ret) {
+		/* No need to requeue the packets in the agg queue, since we
+		 * held the tx lock: no packet could be enqueued to the newly
+		 * allocated queue */
+		ieee80211_ht_agg_queue_remove(local, sta, tid, 0);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "BA request denied - HW unavailable for"
+					" tid %d\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+		*state = HT_AGG_STATE_IDLE;
+		goto err_unlock_queue;
+	}
+
+	/* Will put all the packets in the new SW queue */
+	ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
+	spin_unlock_bh(&sta->lock);
+
+	/* send an addBA request */
+	sta->ampdu_mlme.dialog_token_allocator++;
+	sta->ampdu_mlme.tid_tx[tid]->dialog_token =
+			sta->ampdu_mlme.dialog_token_allocator;
+	sta->ampdu_mlme.tid_tx[tid]->ssn = start_seq_num;
+
+
+	ieee80211_send_addba_request(sta->sdata, ra, tid,
+			 sta->ampdu_mlme.tid_tx[tid]->dialog_token,
+			 sta->ampdu_mlme.tid_tx[tid]->ssn,
+			 0x40, 5000);
+	/* activate the timer for the recipient's addBA response */
+	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.expires =
+				jiffies + ADDBA_RESP_INTERVAL;
+	add_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid);
+#endif
+	goto exit;
+
+err_unlock_queue:
+	kfree(sta->ampdu_mlme.tid_tx[tid]);
+	sta->ampdu_mlme.tid_tx[tid] = NULL;
+	ret = -EBUSY;
+err_unlock_sta:
+	spin_unlock_bh(&sta->lock);
+exit:
+	rcu_read_unlock();
+	return ret;
+}
+EXPORT_SYMBOL(ieee80211_start_tx_ba_session);
+
+int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
+				 u8 *ra, u16 tid,
+				 enum ieee80211_back_parties initiator)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct sta_info *sta;
+	u8 *state;
+	int ret = 0;
+	DECLARE_MAC_BUF(mac);
+
+	if (tid >= STA_TID_NUM)
+		return -EINVAL;
+
+	rcu_read_lock();
+	sta = sta_info_get(local, ra);
+	if (!sta) {
+		rcu_read_unlock();
+		return -ENOENT;
+	}
+
+	/* check if the TID is in aggregation */
+	state = &sta->ampdu_mlme.tid_state_tx[tid];
+	spin_lock_bh(&sta->lock);
+
+	if (*state != HT_AGG_STATE_OPERATIONAL) {
+		ret = -ENOENT;
+		goto stop_BA_exit;
+	}
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "Tx BA session stop requested for %s tid %u\n",
+				print_mac(mac, ra), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+	ieee80211_stop_queue(hw, sta->tid_to_tx_q[tid]);
+
+	*state = HT_AGG_STATE_REQ_STOP_BA_MSK |
+		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
+
+	if (local->ops->ampdu_action)
+		ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_STOP,
+						ra, tid, NULL);
+
+	/* case HW denied going back to legacy */
+	if (ret) {
+		WARN_ON(ret != -EBUSY);
+		*state = HT_AGG_STATE_OPERATIONAL;
+		ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+		goto stop_BA_exit;
+	}
+
+stop_BA_exit:
+	spin_unlock_bh(&sta->lock);
+	rcu_read_unlock();
+	return ret;
+}
+EXPORT_SYMBOL(ieee80211_stop_tx_ba_session);
+
+void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct sta_info *sta;
+	u8 *state;
+	DECLARE_MAC_BUF(mac);
+
+	if (tid >= STA_TID_NUM) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
+				tid, STA_TID_NUM);
+#endif
+		return;
+	}
+
+	rcu_read_lock();
+	sta = sta_info_get(local, ra);
+	if (!sta) {
+		rcu_read_unlock();
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "Could not find station: %s\n",
+				print_mac(mac, ra));
+#endif
+		return;
+	}
+
+	state = &sta->ampdu_mlme.tid_state_tx[tid];
+	spin_lock_bh(&sta->lock);
+
+	if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "addBA was not requested yet, state is %d\n",
+				*state);
+#endif
+		spin_unlock_bh(&sta->lock);
+		rcu_read_unlock();
+		return;
+	}
+
+	WARN_ON_ONCE(*state & HT_ADDBA_DRV_READY_MSK);
+
+	*state |= HT_ADDBA_DRV_READY_MSK;
+
+	if (*state == HT_AGG_STATE_OPERATIONAL) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
+#endif
+		ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+	}
+	spin_unlock_bh(&sta->lock);
+	rcu_read_unlock();
+}
+EXPORT_SYMBOL(ieee80211_start_tx_ba_cb);
+
+void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct sta_info *sta;
+	u8 *state;
+	int agg_queue;
+	DECLARE_MAC_BUF(mac);
+
+	if (tid >= STA_TID_NUM) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
+				tid, STA_TID_NUM);
+#endif
+		return;
+	}
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "Stopping Tx BA session for %s tid %d\n",
+				print_mac(mac, ra), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+	rcu_read_lock();
+	sta = sta_info_get(local, ra);
+	if (!sta) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "Could not find station: %s\n",
+				print_mac(mac, ra));
+#endif
+		rcu_read_unlock();
+		return;
+	}
+	state = &sta->ampdu_mlme.tid_state_tx[tid];
+
+	/* NOTE: no need to use sta->lock in this state check, as
+	 * ieee80211_stop_tx_ba_session will let only one stop call to
+	 * pass through per sta/tid
+	 */
+	if ((*state & HT_AGG_STATE_REQ_STOP_BA_MSK) == 0) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n");
+#endif
+		rcu_read_unlock();
+		return;
+	}
+
+	if (*state & HT_AGG_STATE_INITIATOR_MSK)
+		ieee80211_send_delba(sta->sdata, ra, tid,
+			WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
+
+	agg_queue = sta->tid_to_tx_q[tid];
+
+	ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
+
+	/* We just requeued the all the frames that were in the
+	 * removed queue, and since we might miss a softirq we do
+	 * netif_schedule_queue.  ieee80211_wake_queue is not used
+	 * here as this queue is not necessarily stopped
+	 */
+	netif_schedule_queue(netdev_get_tx_queue(local->mdev, agg_queue));
+	spin_lock_bh(&sta->lock);
+	*state = HT_AGG_STATE_IDLE;
+	sta->ampdu_mlme.addba_req_num[tid] = 0;
+	kfree(sta->ampdu_mlme.tid_tx[tid]);
+	sta->ampdu_mlme.tid_tx[tid] = NULL;
+	spin_unlock_bh(&sta->lock);
+
+	rcu_read_unlock();
+}
+EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb);
+
+void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
+				      const u8 *ra, u16 tid)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct ieee80211_ra_tid *ra_tid;
+	struct sk_buff *skb = dev_alloc_skb(0);
+
+	if (unlikely(!skb)) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		if (net_ratelimit())
+			printk(KERN_WARNING "%s: Not enough memory, "
+			       "dropping start BA session", skb->dev->name);
+#endif
+		return;
+	}
+	ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
+	memcpy(&ra_tid->ra, ra, ETH_ALEN);
+	ra_tid->tid = tid;
+
+	skb->pkt_type = IEEE80211_ADDBA_MSG;
+	skb_queue_tail(&local->skb_queue, skb);
+	tasklet_schedule(&local->tasklet);
+}
+EXPORT_SYMBOL(ieee80211_start_tx_ba_cb_irqsafe);
+
+void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
+				     const u8 *ra, u16 tid)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct ieee80211_ra_tid *ra_tid;
+	struct sk_buff *skb = dev_alloc_skb(0);
+
+	if (unlikely(!skb)) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		if (net_ratelimit())
+			printk(KERN_WARNING "%s: Not enough memory, "
+			       "dropping stop BA session", skb->dev->name);
+#endif
+		return;
+	}
+	ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
+	memcpy(&ra_tid->ra, ra, ETH_ALEN);
+	ra_tid->tid = tid;
+
+	skb->pkt_type = IEEE80211_DELBA_MSG;
+	skb_queue_tail(&local->skb_queue, skb);
+	tasklet_schedule(&local->tasklet);
+}
+EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb_irqsafe);
+
+/*
+ * After accepting the AddBA Request we activated a timer,
+ * resetting it after each frame that arrives from the originator.
+ * if this timer expires ieee80211_sta_stop_rx_ba_session will be executed.
+ */
+static void sta_rx_agg_session_timer_expired(unsigned long data)
+{
+	/* not an elegant detour, but there is no choice as the timer passes
+	 * only one argument, and various sta_info are needed here, so init
+	 * flow in sta_info_create gives the TID as data, while the timer_to_id
+	 * array gives the sta through container_of */
+	u8 *ptid = (u8 *)data;
+	u8 *timer_to_id = ptid - *ptid;
+	struct sta_info *sta = container_of(timer_to_id, struct sta_info,
+					 timer_to_tid[0]);
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid);
+#endif
+	ieee80211_sta_stop_rx_ba_session(sta->sdata, sta->addr,
+					 (u16)*ptid, WLAN_BACK_TIMER,
+					 WLAN_REASON_QSTA_TIMEOUT);
+}
+
+void ieee80211_process_addba_request(struct ieee80211_local *local,
+				     struct sta_info *sta,
+				     struct ieee80211_mgmt *mgmt,
+				     size_t len)
+{
+	struct ieee80211_hw *hw = &local->hw;
+	struct ieee80211_conf *conf = &hw->conf;
+	struct tid_ampdu_rx *tid_agg_rx;
+	u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num, status;
+	u8 dialog_token;
+	int ret = -EOPNOTSUPP;
+	DECLARE_MAC_BUF(mac);
+
+	/* extract session parameters from addba request frame */
+	dialog_token = mgmt->u.action.u.addba_req.dialog_token;
+	timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout);
+	start_seq_num =
+		le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4;
+
+	capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
+	ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1;
+	tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
+	buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6;
+
+	status = WLAN_STATUS_REQUEST_DECLINED;
+
+	/* sanity check for incoming parameters:
+	 * check if configuration can support the BA policy
+	 * and if buffer size does not exceeds max value */
+	if (((ba_policy != 1)
+		&& (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA)))
+		|| (buf_size > IEEE80211_MAX_AMPDU_BUF)) {
+		status = WLAN_STATUS_INVALID_QOS_PARAM;
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		if (net_ratelimit())
+			printk(KERN_DEBUG "AddBA Req with bad params from "
+				"%s on tid %u. policy %d, buffer size %d\n",
+				print_mac(mac, mgmt->sa), tid, ba_policy,
+				buf_size);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+		goto end_no_lock;
+	}
+	/* determine default buffer size */
+	if (buf_size == 0) {
+		struct ieee80211_supported_band *sband;
+
+		sband = local->hw.wiphy->bands[conf->channel->band];
+		buf_size = IEEE80211_MIN_AMPDU_BUF;
+		buf_size = buf_size << sband->ht_info.ampdu_factor;
+	}
+
+
+	/* examine state machine */
+	spin_lock_bh(&sta->lock);
+
+	if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_IDLE) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		if (net_ratelimit())
+			printk(KERN_DEBUG "unexpected AddBA Req from "
+				"%s on tid %u\n",
+				print_mac(mac, mgmt->sa), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+		goto end;
+	}
+
+	/* prepare A-MPDU MLME for Rx aggregation */
+	sta->ampdu_mlme.tid_rx[tid] =
+			kmalloc(sizeof(struct tid_ampdu_rx), GFP_ATOMIC);
+	if (!sta->ampdu_mlme.tid_rx[tid]) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		if (net_ratelimit())
+			printk(KERN_ERR "allocate rx mlme to tid %d failed\n",
+					tid);
+#endif
+		goto end;
+	}
+	/* rx timer */
+	sta->ampdu_mlme.tid_rx[tid]->session_timer.function =
+				sta_rx_agg_session_timer_expired;
+	sta->ampdu_mlme.tid_rx[tid]->session_timer.data =
+				(unsigned long)&sta->timer_to_tid[tid];
+	init_timer(&sta->ampdu_mlme.tid_rx[tid]->session_timer);
+
+	tid_agg_rx = sta->ampdu_mlme.tid_rx[tid];
+
+	/* prepare reordering buffer */
+	tid_agg_rx->reorder_buf =
+		kmalloc(buf_size * sizeof(struct sk_buff *), GFP_ATOMIC);
+	if (!tid_agg_rx->reorder_buf) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		if (net_ratelimit())
+			printk(KERN_ERR "can not allocate reordering buffer "
+			       "to tid %d\n", tid);
+#endif
+		kfree(sta->ampdu_mlme.tid_rx[tid]);
+		goto end;
+	}
+	memset(tid_agg_rx->reorder_buf, 0,
+		buf_size * sizeof(struct sk_buff *));
+
+	if (local->ops->ampdu_action)
+		ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START,
+					       sta->addr, tid, &start_seq_num);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+	if (ret) {
+		kfree(tid_agg_rx->reorder_buf);
+		kfree(tid_agg_rx);
+		sta->ampdu_mlme.tid_rx[tid] = NULL;
+		goto end;
+	}
+
+	/* change state and send addba resp */
+	sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_OPERATIONAL;
+	tid_agg_rx->dialog_token = dialog_token;
+	tid_agg_rx->ssn = start_seq_num;
+	tid_agg_rx->head_seq_num = start_seq_num;
+	tid_agg_rx->buf_size = buf_size;
+	tid_agg_rx->timeout = timeout;
+	tid_agg_rx->stored_mpdu_num = 0;
+	status = WLAN_STATUS_SUCCESS;
+end:
+	spin_unlock_bh(&sta->lock);
+
+end_no_lock:
+	ieee80211_send_addba_resp(sta->sdata, sta->addr, tid,
+				  dialog_token, status, 1, buf_size, timeout);
+}
+
+void ieee80211_process_addba_resp(struct ieee80211_local *local,
+				  struct sta_info *sta,
+				  struct ieee80211_mgmt *mgmt,
+				  size_t len)
+{
+	struct ieee80211_hw *hw = &local->hw;
+	u16 capab;
+	u16 tid;
+	u8 *state;
+
+	capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab);
+	tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
+
+	state = &sta->ampdu_mlme.tid_state_tx[tid];
+
+	spin_lock_bh(&sta->lock);
+
+	if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+		spin_unlock_bh(&sta->lock);
+		return;
+	}
+
+	if (mgmt->u.action.u.addba_resp.dialog_token !=
+		sta->ampdu_mlme.tid_tx[tid]->dialog_token) {
+		spin_unlock_bh(&sta->lock);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+		return;
+	}
+
+	del_timer_sync(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "switched off addBA timer for tid %d \n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+	if (le16_to_cpu(mgmt->u.action.u.addba_resp.status)
+			== WLAN_STATUS_SUCCESS) {
+		*state |= HT_ADDBA_RECEIVED_MSK;
+		sta->ampdu_mlme.addba_req_num[tid] = 0;
+
+		if (*state == HT_AGG_STATE_OPERATIONAL)
+			ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+
+		spin_unlock_bh(&sta->lock);
+	} else {
+		sta->ampdu_mlme.addba_req_num[tid]++;
+		/* this will allow the state check in stop_BA_session */
+		*state = HT_AGG_STATE_OPERATIONAL;
+		spin_unlock_bh(&sta->lock);
+		ieee80211_stop_tx_ba_session(hw, sta->addr, tid,
+					     WLAN_BACK_INITIATOR);
+	}
+}
+
+void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
+			     struct sta_info *sta,
+			     struct ieee80211_mgmt *mgmt, size_t len)
+{
+	struct ieee80211_local *local = sdata->local;
+	u16 tid, params;
+	u16 initiator;
+	DECLARE_MAC_BUF(mac);
+
+	params = le16_to_cpu(mgmt->u.action.u.delba.params);
+	tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12;
+	initiator = (params & IEEE80211_DELBA_PARAM_INITIATOR_MASK) >> 11;
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	if (net_ratelimit())
+		printk(KERN_DEBUG "delba from %s (%s) tid %d reason code %d\n",
+			print_mac(mac, mgmt->sa),
+			initiator ? "initiator" : "recipient", tid,
+			mgmt->u.action.u.delba.reason_code);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+	if (initiator == WLAN_BACK_INITIATOR)
+		ieee80211_sta_stop_rx_ba_session(sdata, sta->addr, tid,
+						 WLAN_BACK_INITIATOR, 0);
+	else { /* WLAN_BACK_RECIPIENT */
+		spin_lock_bh(&sta->lock);
+		sta->ampdu_mlme.tid_state_tx[tid] =
+				HT_AGG_STATE_OPERATIONAL;
+		spin_unlock_bh(&sta->lock);
+		ieee80211_stop_tx_ba_session(&local->hw, sta->addr, tid,
+					     WLAN_BACK_RECIPIENT);
+	}
+}

net/mac80211/ieee80211_i.h

@@ -53,6 +53,12 @@ struct ieee80211_local;
  * increased memory use (about 2 kB of RAM per entry). */
 #define IEEE80211_FRAGMENT_MAX 4
 
+/*
+ * Time after which we ignore scan results and no longer report/use
+ * them in any way.
+ */
+#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
+
 struct ieee80211_fragment_entry {
 	unsigned long first_frag_time;
 	unsigned int seq;
@@ -636,7 +642,7 @@ struct ieee80211_local {
 	enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
 	unsigned long last_scan_completed;
 	struct delayed_work scan_work;
-	struct net_device *scan_dev;
+	struct ieee80211_sub_if_data *scan_sdata;
 	struct ieee80211_channel *oper_channel, *scan_channel;
 	u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
 	size_t scan_ssid_len;
@@ -903,29 +909,31 @@ int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 				      u32 changed);
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
-int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
-				   struct ieee80211_ht_info *ht_info);
-int ieee80211_ht_addt_info_ie_to_ht_bss_info(
-			struct ieee80211_ht_addt_info *ht_add_info_ie,
-			struct ieee80211_ht_bss_info *bss_info);
-void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata, const u8 *da,
-				  u16 tid, u8 dialog_token, u16 start_seq_num,
-				  u16 agg_size, u16 timeout);
-void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, const u8 *da, u16 tid,
-				u16 initiator, u16 reason_code);
-void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
-
-void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
-				u16 tid, u16 initiator, u16 reason);
-void sta_addba_resp_timer_expired(unsigned long data);
-void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr);
 u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
 			    struct ieee802_11_elems *elems,
 			    enum ieee80211_band band);
-void ieee80211_sta_tx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
-		int encrypt);
+void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
+			      u8 *ssid, size_t ssid_len);
 void ieee802_11_parse_elems(u8 *start, size_t len,
-				   struct ieee802_11_elems *elems);
+			    struct ieee802_11_elems *elems);
+void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
+int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *scan_sdata,
+			     u8 *ssid, size_t ssid_len);
+struct ieee80211_sta_bss *
+ieee80211_bss_info_update(struct ieee80211_local *local,
+			  struct ieee80211_rx_status *rx_status,
+			  struct ieee80211_mgmt *mgmt,
+			  size_t len,
+			  struct ieee802_11_elems *elems,
+			  int freq, bool beacon);
+struct ieee80211_sta_bss *
+ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq,
+		     u8 *ssid, u8 ssid_len);
+struct ieee80211_sta_bss *
+ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
+		     u8 *ssid, u8 ssid_len);
+void ieee80211_rx_bss_put(struct ieee80211_local *local,
+			  struct ieee80211_sta_bss *bss);
 
 #ifdef CONFIG_MAC80211_MESH
 void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
@@ -951,6 +959,34 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
 
+/* HT */
+int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
+				   struct ieee80211_ht_info *ht_info);
+int ieee80211_ht_addt_info_ie_to_ht_bss_info(
+			struct ieee80211_ht_addt_info *ht_add_info_ie,
+			struct ieee80211_ht_bss_info *bss_info);
+void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
+
+void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
+				u16 tid, u16 initiator, u16 reason);
+void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr);
+void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
+			     struct sta_info *sta,
+			     struct ieee80211_mgmt *mgmt, size_t len);
+void ieee80211_process_addba_resp(struct ieee80211_local *local,
+				  struct sta_info *sta,
+				  struct ieee80211_mgmt *mgmt,
+				  size_t len);
+void ieee80211_process_addba_request(struct ieee80211_local *local,
+				     struct sta_info *sta,
+				     struct ieee80211_mgmt *mgmt,
+				     size_t len);
+
+/* Spectrum management */
+void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
+				       struct ieee80211_mgmt *mgmt,
+				       size_t len);
+
 /* utility functions/constants */
 extern void *mac80211_wiphy_privid; /* for wiphy privid */
 extern const unsigned char rfc1042_header[6];
@@ -961,6 +997,9 @@ int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
 			     int rate, int erp, int short_preamble);
 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
 				     struct ieee80211_hdr *hdr);
+void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
+void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+		      int encrypt);
 
 #ifdef CONFIG_MAC80211_NOINLINE
 #define debug_noinline noinline

net/mac80211/iface.c

@@ -31,11 +31,11 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
 	int flushed;
 	int i;
 
-	ieee80211_debugfs_remove_netdev(sdata);
-
 	/* free extra data */
 	ieee80211_free_keys(sdata);
 
+	ieee80211_debugfs_remove_netdev(sdata);
+
 	for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
 		__skb_queue_purge(&sdata->fragments[i].skb_list);
 	sdata->fragment_next = 0;

net/mac80211/main.c

@@ -399,8 +399,15 @@ static int ieee80211_open(struct net_device *dev)
 		atomic_inc(&local->iff_promiscs);
 
 	local->open_count++;
-	if (need_hw_reconfig)
+	if (need_hw_reconfig) {
 		ieee80211_hw_config(local);
+		/*
+		 * set default queue parameters so drivers don't
+		 * need to initialise the hardware if the hardware
+		 * doesn't start up with sane defaults
+		 */
+		ieee80211_set_wmm_default(sdata);
+	}
 
 	/*
 	 * ieee80211_sta_work is disabled while network interface
@@ -551,7 +558,7 @@ static int ieee80211_stop(struct net_device *dev)
 		synchronize_rcu();
 		skb_queue_purge(&sdata->u.sta.skb_queue);
 
-		if (local->scan_dev == sdata->dev) {
+		if (local->scan_sdata == sdata) {
 			if (!local->ops->hw_scan) {
 				local->sta_sw_scanning = 0;
 				cancel_delayed_work(&local->scan_work);
@@ -593,379 +600,6 @@ static int ieee80211_stop(struct net_device *dev)
 	return 0;
 }
 
-int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct sta_info *sta;
-	struct ieee80211_sub_if_data *sdata;
-	u16 start_seq_num;
-	u8 *state;
-	int ret;
-	DECLARE_MAC_BUF(mac);
-
-	if (tid >= STA_TID_NUM)
-		return -EINVAL;
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	printk(KERN_DEBUG "Open BA session requested for %s tid %u\n",
-				print_mac(mac, ra), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
-	rcu_read_lock();
-
-	sta = sta_info_get(local, ra);
-	if (!sta) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "Could not find the station\n");
-#endif
-		ret = -ENOENT;
-		goto exit;
-	}
-
-	spin_lock_bh(&sta->lock);
-
-	/* we have tried too many times, receiver does not want A-MPDU */
-	if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_MAX_RETRIES) {
-		ret = -EBUSY;
-		goto err_unlock_sta;
-	}
-
-	state = &sta->ampdu_mlme.tid_state_tx[tid];
-	/* check if the TID is not in aggregation flow already */
-	if (*state != HT_AGG_STATE_IDLE) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "BA request denied - session is not "
-				 "idle on tid %u\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-		ret = -EAGAIN;
-		goto err_unlock_sta;
-	}
-
-	/* prepare A-MPDU MLME for Tx aggregation */
-	sta->ampdu_mlme.tid_tx[tid] =
-			kmalloc(sizeof(struct tid_ampdu_tx), GFP_ATOMIC);
-	if (!sta->ampdu_mlme.tid_tx[tid]) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		if (net_ratelimit())
-			printk(KERN_ERR "allocate tx mlme to tid %d failed\n",
-					tid);
-#endif
-		ret = -ENOMEM;
-		goto err_unlock_sta;
-	}
-	/* Tx timer */
-	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.function =
-			sta_addba_resp_timer_expired;
-	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.data =
-			(unsigned long)&sta->timer_to_tid[tid];
-	init_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
-
-	/* create a new queue for this aggregation */
-	ret = ieee80211_ht_agg_queue_add(local, sta, tid);
-
-	/* case no queue is available to aggregation
-	 * don't switch to aggregation */
-	if (ret) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "BA request denied - queue unavailable for"
-					" tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-		goto err_unlock_queue;
-	}
-	sdata = sta->sdata;
-
-	/* Ok, the Addba frame hasn't been sent yet, but if the driver calls the
-	 * call back right away, it must see that the flow has begun */
-	*state |= HT_ADDBA_REQUESTED_MSK;
-
-	/* This is slightly racy because the queue isn't stopped */
-	start_seq_num = sta->tid_seq[tid];
-
-	if (local->ops->ampdu_action)
-		ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START,
-						ra, tid, &start_seq_num);
-
-	if (ret) {
-		/* No need to requeue the packets in the agg queue, since we
-		 * held the tx lock: no packet could be enqueued to the newly
-		 * allocated queue */
-		ieee80211_ht_agg_queue_remove(local, sta, tid, 0);
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "BA request denied - HW unavailable for"
-					" tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-		*state = HT_AGG_STATE_IDLE;
-		goto err_unlock_queue;
-	}
-
-	/* Will put all the packets in the new SW queue */
-	ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
-	spin_unlock_bh(&sta->lock);
-
-	/* send an addBA request */
-	sta->ampdu_mlme.dialog_token_allocator++;
-	sta->ampdu_mlme.tid_tx[tid]->dialog_token =
-			sta->ampdu_mlme.dialog_token_allocator;
-	sta->ampdu_mlme.tid_tx[tid]->ssn = start_seq_num;
-
-
-	ieee80211_send_addba_request(sta->sdata, ra, tid,
-			 sta->ampdu_mlme.tid_tx[tid]->dialog_token,
-			 sta->ampdu_mlme.tid_tx[tid]->ssn,
-			 0x40, 5000);
-	/* activate the timer for the recipient's addBA response */
-	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.expires =
-				jiffies + ADDBA_RESP_INTERVAL;
-	add_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid);
-#endif
-	goto exit;
-
-err_unlock_queue:
-	kfree(sta->ampdu_mlme.tid_tx[tid]);
-	sta->ampdu_mlme.tid_tx[tid] = NULL;
-	ret = -EBUSY;
-err_unlock_sta:
-	spin_unlock_bh(&sta->lock);
-exit:
-	rcu_read_unlock();
-	return ret;
-}
-EXPORT_SYMBOL(ieee80211_start_tx_ba_session);
-
-int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
-				 u8 *ra, u16 tid,
-				 enum ieee80211_back_parties initiator)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct sta_info *sta;
-	u8 *state;
-	int ret = 0;
-	DECLARE_MAC_BUF(mac);
-
-	if (tid >= STA_TID_NUM)
-		return -EINVAL;
-
-	rcu_read_lock();
-	sta = sta_info_get(local, ra);
-	if (!sta) {
-		rcu_read_unlock();
-		return -ENOENT;
-	}
-
-	/* check if the TID is in aggregation */
-	state = &sta->ampdu_mlme.tid_state_tx[tid];
-	spin_lock_bh(&sta->lock);
-
-	if (*state != HT_AGG_STATE_OPERATIONAL) {
-		ret = -ENOENT;
-		goto stop_BA_exit;
-	}
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	printk(KERN_DEBUG "Tx BA session stop requested for %s tid %u\n",
-				print_mac(mac, ra), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
-	ieee80211_stop_queue(hw, sta->tid_to_tx_q[tid]);
-
-	*state = HT_AGG_STATE_REQ_STOP_BA_MSK |
-		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
-
-	if (local->ops->ampdu_action)
-		ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_STOP,
-						ra, tid, NULL);
-
-	/* case HW denied going back to legacy */
-	if (ret) {
-		WARN_ON(ret != -EBUSY);
-		*state = HT_AGG_STATE_OPERATIONAL;
-		ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
-		goto stop_BA_exit;
-	}
-
-stop_BA_exit:
-	spin_unlock_bh(&sta->lock);
-	rcu_read_unlock();
-	return ret;
-}
-EXPORT_SYMBOL(ieee80211_stop_tx_ba_session);
-
-void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct sta_info *sta;
-	u8 *state;
-	DECLARE_MAC_BUF(mac);
-
-	if (tid >= STA_TID_NUM) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
-				tid, STA_TID_NUM);
-#endif
-		return;
-	}
-
-	rcu_read_lock();
-	sta = sta_info_get(local, ra);
-	if (!sta) {
-		rcu_read_unlock();
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "Could not find station: %s\n",
-				print_mac(mac, ra));
-#endif
-		return;
-	}
-
-	state = &sta->ampdu_mlme.tid_state_tx[tid];
-	spin_lock_bh(&sta->lock);
-
-	if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "addBA was not requested yet, state is %d\n",
-				*state);
-#endif
-		spin_unlock_bh(&sta->lock);
-		rcu_read_unlock();
-		return;
-	}
-
-	WARN_ON_ONCE(*state & HT_ADDBA_DRV_READY_MSK);
-
-	*state |= HT_ADDBA_DRV_READY_MSK;
-
-	if (*state == HT_AGG_STATE_OPERATIONAL) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
-#endif
-		ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
-	}
-	spin_unlock_bh(&sta->lock);
-	rcu_read_unlock();
-}
-EXPORT_SYMBOL(ieee80211_start_tx_ba_cb);
-
-void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct sta_info *sta;
-	u8 *state;
-	int agg_queue;
-	DECLARE_MAC_BUF(mac);
-
-	if (tid >= STA_TID_NUM) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
-				tid, STA_TID_NUM);
-#endif
-		return;
-	}
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	printk(KERN_DEBUG "Stopping Tx BA session for %s tid %d\n",
-				print_mac(mac, ra), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
-	rcu_read_lock();
-	sta = sta_info_get(local, ra);
-	if (!sta) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "Could not find station: %s\n",
-				print_mac(mac, ra));
-#endif
-		rcu_read_unlock();
-		return;
-	}
-	state = &sta->ampdu_mlme.tid_state_tx[tid];
-
-	/* NOTE: no need to use sta->lock in this state check, as
-	 * ieee80211_stop_tx_ba_session will let only one stop call to
-	 * pass through per sta/tid
-	 */
-	if ((*state & HT_AGG_STATE_REQ_STOP_BA_MSK) == 0) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n");
-#endif
-		rcu_read_unlock();
-		return;
-	}
-
-	if (*state & HT_AGG_STATE_INITIATOR_MSK)
-		ieee80211_send_delba(sta->sdata, ra, tid,
-			WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
-
-	agg_queue = sta->tid_to_tx_q[tid];
-
-	ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
-
-	/* We just requeued the all the frames that were in the
-	 * removed queue, and since we might miss a softirq we do
-	 * netif_schedule_queue.  ieee80211_wake_queue is not used
-	 * here as this queue is not necessarily stopped
-	 */
-	netif_schedule_queue(netdev_get_tx_queue(local->mdev, agg_queue));
-	spin_lock_bh(&sta->lock);
-	*state = HT_AGG_STATE_IDLE;
-	sta->ampdu_mlme.addba_req_num[tid] = 0;
-	kfree(sta->ampdu_mlme.tid_tx[tid]);
-	sta->ampdu_mlme.tid_tx[tid] = NULL;
-	spin_unlock_bh(&sta->lock);
-
-	rcu_read_unlock();
-}
-EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb);
-
-void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
-				      const u8 *ra, u16 tid)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct ieee80211_ra_tid *ra_tid;
-	struct sk_buff *skb = dev_alloc_skb(0);
-
-	if (unlikely(!skb)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		if (net_ratelimit())
-			printk(KERN_WARNING "%s: Not enough memory, "
-			       "dropping start BA session", skb->dev->name);
-#endif
-		return;
-	}
-	ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
-	memcpy(&ra_tid->ra, ra, ETH_ALEN);
-	ra_tid->tid = tid;
-
-	skb->pkt_type = IEEE80211_ADDBA_MSG;
-	skb_queue_tail(&local->skb_queue, skb);
-	tasklet_schedule(&local->tasklet);
-}
-EXPORT_SYMBOL(ieee80211_start_tx_ba_cb_irqsafe);
-
-void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
-				     const u8 *ra, u16 tid)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct ieee80211_ra_tid *ra_tid;
-	struct sk_buff *skb = dev_alloc_skb(0);
-
-	if (unlikely(!skb)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		if (net_ratelimit())
-			printk(KERN_WARNING "%s: Not enough memory, "
-			       "dropping stop BA session", skb->dev->name);
-#endif
-		return;
-	}
-	ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
-	memcpy(&ra_tid->ra, ra, ETH_ALEN);
-	ra_tid->tid = tid;
-
-	skb->pkt_type = IEEE80211_DELBA_MSG;
-	skb_queue_tail(&local->skb_queue, skb);
-	tasklet_schedule(&local->tasklet);
-}
-EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb_irqsafe);
-
 static void ieee80211_set_multicast_list(struct net_device *dev)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
@@ -1140,8 +774,8 @@ u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
 	ht_conf.ht_supported = 1;
 
 	ht_conf.cap = req_ht_cap->cap & sband->ht_info.cap;
-	ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS);
-	ht_conf.cap |= sband->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS;
+	ht_conf.cap &= ~(IEEE80211_HT_CAP_SM_PS);
+	ht_conf.cap |= sband->ht_info.cap & IEEE80211_HT_CAP_SM_PS;
 	ht_bss_conf.primary_channel = req_bss_cap->primary_channel;
 	ht_bss_conf.bss_cap = req_bss_cap->bss_cap;
 	ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode;

net/mac80211/mesh_hwmp.c

@@ -149,7 +149,7 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
 	pos += ETH_ALEN;
 	memcpy(pos, &dst_dsn, 4);
 
-	ieee80211_sta_tx(sdata, skb, 0);
+	ieee80211_tx_skb(sdata, skb, 0);
 	return 0;
 }
 
@@ -198,7 +198,7 @@ int mesh_path_error_tx(u8 *dst, __le32 dst_dsn, u8 *ra,
 	pos += ETH_ALEN;
 	memcpy(pos, &dst_dsn, 4);
 
-	ieee80211_sta_tx(sdata, skb, 0);
+	ieee80211_tx_skb(sdata, skb, 0);
 	return 0;
 }
 
@@ -581,6 +581,10 @@ void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
 	size_t baselen;
 	u32 last_hop_metric;
 
+	/* need action_code */
+	if (len < IEEE80211_MIN_ACTION_SIZE + 1)
+		return;
+
 	baselen = (u8 *) mgmt->u.action.u.mesh_action.variable - (u8 *) mgmt;
 	ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable,
 			len - baselen, &elems);

net/mac80211/mesh_plink.c

@@ -217,7 +217,7 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
 		memcpy(pos, &reason, 2);
 	}
 
-	ieee80211_sta_tx(sdata, skb, 0);
+	ieee80211_tx_skb(sdata, skb, 0);
 	return 0;
 }
 
@@ -421,6 +421,10 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
 	DECLARE_MAC_BUF(mac);
 #endif
 
+	/* need action_code, aux */
+	if (len < IEEE80211_MIN_ACTION_SIZE + 3)
+		return;
+
 	if (is_multicast_ether_addr(mgmt->da)) {
 		mpl_dbg("Mesh plink: ignore frame from multicast address");
 		return;

net/mac80211/mlme.c

@@ -11,11 +11,6 @@
  * published by the Free Software Foundation.
  */
 
-/* TODO:
- * order BSS list by RSSI(?) ("quality of AP")
- * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
- *    SSID)
- */
 #include <linux/delay.h>
 #include <linux/if_ether.h>
 #include <linux/skbuff.h>
@@ -26,9 +21,8 @@
 #include <linux/etherdevice.h>
 #include <linux/rtnetlink.h>
 #include <net/iw_handler.h>
-#include <asm/types.h>
-
 #include <net/mac80211.h>
+
 #include "ieee80211_i.h"
 #include "rate.h"
 #include "led.h"
@@ -47,10 +41,6 @@
 #define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
 #define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ)
 
-#define IEEE80211_PROBE_DELAY (HZ / 33)
-#define IEEE80211_CHANNEL_TIME (HZ / 33)
-#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5)
-#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
 #define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
 #define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
 #define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
@@ -58,185 +48,13 @@
 #define IEEE80211_IBSS_MAX_STA_ENTRIES 128
 
 
-#define ERP_INFO_USE_PROTECTION BIT(1)
-
-/* mgmt header + 1 byte action code */
-#define IEEE80211_MIN_ACTION_SIZE (24 + 1)
-
-#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
-#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
-#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
-#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
-#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
-
-/* next values represent the buffer size for A-MPDU frame.
- * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) */
-#define IEEE80211_MIN_AMPDU_BUF 0x8
-#define IEEE80211_MAX_AMPDU_BUF 0x40
-
-static void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
-				     u8 *ssid, size_t ssid_len);
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
-		     u8 *ssid, u8 ssid_len);
-static void ieee80211_rx_bss_put(struct ieee80211_local *local,
-				 struct ieee80211_sta_bss *bss);
-static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata,
-				   struct ieee80211_if_sta *ifsta);
-static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata);
-static int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *sdata,
-				    u8 *ssid, size_t ssid_len);
-static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta);
-static void sta_rx_agg_session_timer_expired(unsigned long data);
-
-
-void ieee802_11_parse_elems(u8 *start, size_t len,
-			    struct ieee802_11_elems *elems)
+/* utils */
+static int ecw2cw(int ecw)
 {
-	size_t left = len;
-	u8 *pos = start;
-
-	memset(elems, 0, sizeof(*elems));
-	elems->ie_start = start;
-	elems->total_len = len;
-
-	while (left >= 2) {
-		u8 id, elen;
-
-		id = *pos++;
-		elen = *pos++;
-		left -= 2;
-
-		if (elen > left)
-			return;
-
-		switch (id) {
-		case WLAN_EID_SSID:
-			elems->ssid = pos;
-			elems->ssid_len = elen;
-			break;
-		case WLAN_EID_SUPP_RATES:
-			elems->supp_rates = pos;
-			elems->supp_rates_len = elen;
-			break;
-		case WLAN_EID_FH_PARAMS:
-			elems->fh_params = pos;
-			elems->fh_params_len = elen;
-			break;
-		case WLAN_EID_DS_PARAMS:
-			elems->ds_params = pos;
-			elems->ds_params_len = elen;
-			break;
-		case WLAN_EID_CF_PARAMS:
-			elems->cf_params = pos;
-			elems->cf_params_len = elen;
-			break;
-		case WLAN_EID_TIM:
-			elems->tim = pos;
-			elems->tim_len = elen;
-			break;
-		case WLAN_EID_IBSS_PARAMS:
-			elems->ibss_params = pos;
-			elems->ibss_params_len = elen;
-			break;
-		case WLAN_EID_CHALLENGE:
-			elems->challenge = pos;
-			elems->challenge_len = elen;
-			break;
-		case WLAN_EID_WPA:
-			if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
-			    pos[2] == 0xf2) {
-				/* Microsoft OUI (00:50:F2) */
-				if (pos[3] == 1) {
-					/* OUI Type 1 - WPA IE */
-					elems->wpa = pos;
-					elems->wpa_len = elen;
-				} else if (elen >= 5 && pos[3] == 2) {
-					if (pos[4] == 0) {
-						elems->wmm_info = pos;
-						elems->wmm_info_len = elen;
-					} else if (pos[4] == 1) {
-						elems->wmm_param = pos;
-						elems->wmm_param_len = elen;
-					}
-				}
-			}
-			break;
-		case WLAN_EID_RSN:
-			elems->rsn = pos;
-			elems->rsn_len = elen;
-			break;
-		case WLAN_EID_ERP_INFO:
-			elems->erp_info = pos;
-			elems->erp_info_len = elen;
-			break;
-		case WLAN_EID_EXT_SUPP_RATES:
-			elems->ext_supp_rates = pos;
-			elems->ext_supp_rates_len = elen;
-			break;
-		case WLAN_EID_HT_CAPABILITY:
-			elems->ht_cap_elem = pos;
-			elems->ht_cap_elem_len = elen;
-			break;
-		case WLAN_EID_HT_EXTRA_INFO:
-			elems->ht_info_elem = pos;
-			elems->ht_info_elem_len = elen;
-			break;
-		case WLAN_EID_MESH_ID:
-			elems->mesh_id = pos;
-			elems->mesh_id_len = elen;
-			break;
-		case WLAN_EID_MESH_CONFIG:
-			elems->mesh_config = pos;
-			elems->mesh_config_len = elen;
-			break;
-		case WLAN_EID_PEER_LINK:
-			elems->peer_link = pos;
-			elems->peer_link_len = elen;
-			break;
-		case WLAN_EID_PREQ:
-			elems->preq = pos;
-			elems->preq_len = elen;
-			break;
-		case WLAN_EID_PREP:
-			elems->prep = pos;
-			elems->prep_len = elen;
-			break;
-		case WLAN_EID_PERR:
-			elems->perr = pos;
-			elems->perr_len = elen;
-			break;
-		case WLAN_EID_CHANNEL_SWITCH:
-			elems->ch_switch_elem = pos;
-			elems->ch_switch_elem_len = elen;
-			break;
-		case WLAN_EID_QUIET:
-			if (!elems->quiet_elem) {
-				elems->quiet_elem = pos;
-				elems->quiet_elem_len = elen;
-			}
-			elems->num_of_quiet_elem++;
-			break;
-		case WLAN_EID_COUNTRY:
-			elems->country_elem = pos;
-			elems->country_elem_len = elen;
-			break;
-		case WLAN_EID_PWR_CONSTRAINT:
-			elems->pwr_constr_elem = pos;
-			elems->pwr_constr_elem_len = elen;
-			break;
-		default:
-			break;
-		}
-
-		left -= elen;
-		pos += elen;
-	}
+	return (1 << ecw) - 1;
 }
 
-
-static u8 * ieee80211_bss_get_ie(struct ieee80211_sta_bss *bss, u8 ie)
+static u8 *ieee80211_bss_get_ie(struct ieee80211_sta_bss *bss, u8 ie)
 {
 	u8 *end, *pos;
 
@@ -256,109 +74,439 @@ static u8 * ieee80211_bss_get_ie(struct ieee80211_sta_bss *bss, u8 ie)
 	return NULL;
 }
 
-
-static int ecw2cw(int ecw)
+static int ieee80211_compatible_rates(struct ieee80211_sta_bss *bss,
+				      struct ieee80211_supported_band *sband,
+				      u64 *rates)
 {
-	return (1 << ecw) - 1;
-}
+	int i, j, count;
+	*rates = 0;
+	count = 0;
+	for (i = 0; i < bss->supp_rates_len; i++) {
+		int rate = (bss->supp_rates[i] & 0x7F) * 5;
+
+		for (j = 0; j < sband->n_bitrates; j++)
+			if (sband->bitrates[j].bitrate == rate) {
+				*rates |= BIT(j);
+				count++;
+				break;
+			}
+	}
 
+	return count;
+}
 
-static void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
-					 struct ieee80211_sta_bss *bss,
-					 int ibss)
+/* frame sending functions */
+static void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
+				struct ieee80211_if_sta *ifsta,
+				int transaction, u8 *extra, size_t extra_len,
+				int encrypt)
 {
 	struct ieee80211_local *local = sdata->local;
-	int i, have_higher_than_11mbit = 0;
-
-
-	/* cf. IEEE 802.11 9.2.12 */
-	for (i = 0; i < bss->supp_rates_len; i++)
-		if ((bss->supp_rates[i] & 0x7f) * 5 > 110)
-			have_higher_than_11mbit = 1;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
 
-	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
-	    have_higher_than_11mbit)
-		sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
-	else
-		sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+			    sizeof(*mgmt) + 6 + extra_len);
+	if (!skb) {
+		printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
+		       "frame\n", sdata->dev->name);
+		return;
+	}
+	skb_reserve(skb, local->hw.extra_tx_headroom);
 
+	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6);
+	memset(mgmt, 0, 24 + 6);
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_AUTH);
+	if (encrypt)
+		mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+	memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+	mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg);
+	mgmt->u.auth.auth_transaction = cpu_to_le16(transaction);
+	ifsta->auth_transaction = transaction + 1;
+	mgmt->u.auth.status_code = cpu_to_le16(0);
+	if (extra)
+		memcpy(skb_put(skb, extra_len), extra, extra_len);
 
-	if (local->ops->conf_tx) {
-		struct ieee80211_tx_queue_params qparam;
+	ieee80211_tx_skb(sdata, skb, encrypt);
+}
 
-		memset(&qparam, 0, sizeof(qparam));
+void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
+			      u8 *ssid, size_t ssid_len)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_supported_band *sband;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	u8 *pos, *supp_rates, *esupp_rates = NULL;
+	int i;
 
-		qparam.aifs = 2;
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200);
+	if (!skb) {
+		printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
+		       "request\n", sdata->dev->name);
+		return;
+	}
+	skb_reserve(skb, local->hw.extra_tx_headroom);
 
-		if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
-		    !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE))
-			qparam.cw_min = 31;
-		else
-			qparam.cw_min = 15;
+	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+	memset(mgmt, 0, 24);
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_PROBE_REQ);
+	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	if (dst) {
+		memcpy(mgmt->da, dst, ETH_ALEN);
+		memcpy(mgmt->bssid, dst, ETH_ALEN);
+	} else {
+		memset(mgmt->da, 0xff, ETH_ALEN);
+		memset(mgmt->bssid, 0xff, ETH_ALEN);
+	}
+	pos = skb_put(skb, 2 + ssid_len);
+	*pos++ = WLAN_EID_SSID;
+	*pos++ = ssid_len;
+	memcpy(pos, ssid, ssid_len);
 
-		qparam.cw_max = 1023;
-		qparam.txop = 0;
+	supp_rates = skb_put(skb, 2);
+	supp_rates[0] = WLAN_EID_SUPP_RATES;
+	supp_rates[1] = 0;
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 
-		for (i = 0; i < local_to_hw(local)->queues; i++)
-			local->ops->conf_tx(local_to_hw(local), i, &qparam);
+	for (i = 0; i < sband->n_bitrates; i++) {
+		struct ieee80211_rate *rate = &sband->bitrates[i];
+		if (esupp_rates) {
+			pos = skb_put(skb, 1);
+			esupp_rates[1]++;
+		} else if (supp_rates[1] == 8) {
+			esupp_rates = skb_put(skb, 3);
+			esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
+			esupp_rates[1] = 1;
+			pos = &esupp_rates[2];
+		} else {
+			pos = skb_put(skb, 1);
+			supp_rates[1]++;
+		}
+		*pos = rate->bitrate / 5;
 	}
+
+	ieee80211_tx_skb(sdata, skb, 0);
 }
 
-static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
-				     struct ieee80211_if_sta *ifsta,
-				     u8 *wmm_param, size_t wmm_param_len)
+static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
+				 struct ieee80211_if_sta *ifsta)
 {
-	struct ieee80211_tx_queue_params params;
-	size_t left;
-	int count;
-	u8 *pos;
+	struct ieee80211_local *local = sdata->local;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	u8 *pos, *ies, *ht_add_ie;
+	int i, len, count, rates_len, supp_rates_len;
+	u16 capab;
+	struct ieee80211_sta_bss *bss;
+	int wmm = 0;
+	struct ieee80211_supported_band *sband;
+	u64 rates = 0;
 
-	if (!(ifsta->flags & IEEE80211_STA_WMM_ENABLED))
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+			    sizeof(*mgmt) + 200 + ifsta->extra_ie_len +
+			    ifsta->ssid_len);
+	if (!skb) {
+		printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
+		       "frame\n", sdata->dev->name);
 		return;
+	}
+	skb_reserve(skb, local->hw.extra_tx_headroom);
 
-	if (!wmm_param)
-		return;
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 
-	if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
-		return;
-	count = wmm_param[6] & 0x0f;
-	if (count == ifsta->wmm_last_param_set)
-		return;
-	ifsta->wmm_last_param_set = count;
+	capab = ifsta->capab;
 
-	pos = wmm_param + 8;
-	left = wmm_param_len - 8;
+	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) {
+		if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
+			capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
+		if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
+			capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
+	}
 
-	memset(&params, 0, sizeof(params));
+	bss = ieee80211_rx_bss_get(local, ifsta->bssid,
+				   local->hw.conf.channel->center_freq,
+				   ifsta->ssid, ifsta->ssid_len);
+	if (bss) {
+		if (bss->capability & WLAN_CAPABILITY_PRIVACY)
+			capab |= WLAN_CAPABILITY_PRIVACY;
+		if (bss->wmm_used)
+			wmm = 1;
 
-	if (!local->ops->conf_tx)
-		return;
+		/* get all rates supported by the device and the AP as
+		 * some APs don't like getting a superset of their rates
+		 * in the association request (e.g. D-Link DAP 1353 in
+		 * b-only mode) */
+		rates_len = ieee80211_compatible_rates(bss, sband, &rates);
 
-	local->wmm_acm = 0;
-	for (; left >= 4; left -= 4, pos += 4) {
-		int aci = (pos[0] >> 5) & 0x03;
-		int acm = (pos[0] >> 4) & 0x01;
-		int queue;
+		if ((bss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT) &&
+		    (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT))
+			capab |= WLAN_CAPABILITY_SPECTRUM_MGMT;
 
-		switch (aci) {
-		case 1:
-			queue = 3;
-			if (acm)
-				local->wmm_acm |= BIT(0) | BIT(3);
-			break;
-		case 2:
-			queue = 1;
-			if (acm)
-				local->wmm_acm |= BIT(4) | BIT(5);
-			break;
-		case 3:
-			queue = 0;
-			if (acm)
-				local->wmm_acm |= BIT(6) | BIT(7);
-			break;
-		case 0:
-		default:
-			queue = 2;
+		ieee80211_rx_bss_put(local, bss);
+	} else {
+		rates = ~0;
+		rates_len = sband->n_bitrates;
+	}
+
+	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+	memset(mgmt, 0, 24);
+	memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+
+	if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
+		skb_put(skb, 10);
+		mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+						  IEEE80211_STYPE_REASSOC_REQ);
+		mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab);
+		mgmt->u.reassoc_req.listen_interval =
+				cpu_to_le16(local->hw.conf.listen_interval);
+		memcpy(mgmt->u.reassoc_req.current_ap, ifsta->prev_bssid,
+		       ETH_ALEN);
+	} else {
+		skb_put(skb, 4);
+		mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+						  IEEE80211_STYPE_ASSOC_REQ);
+		mgmt->u.assoc_req.capab_info = cpu_to_le16(capab);
+		mgmt->u.reassoc_req.listen_interval =
+				cpu_to_le16(local->hw.conf.listen_interval);
+	}
+
+	/* SSID */
+	ies = pos = skb_put(skb, 2 + ifsta->ssid_len);
+	*pos++ = WLAN_EID_SSID;
+	*pos++ = ifsta->ssid_len;
+	memcpy(pos, ifsta->ssid, ifsta->ssid_len);
+
+	/* add all rates which were marked to be used above */
+	supp_rates_len = rates_len;
+	if (supp_rates_len > 8)
+		supp_rates_len = 8;
+
+	len = sband->n_bitrates;
+	pos = skb_put(skb, supp_rates_len + 2);
+	*pos++ = WLAN_EID_SUPP_RATES;
+	*pos++ = supp_rates_len;
+
+	count = 0;
+	for (i = 0; i < sband->n_bitrates; i++) {
+		if (BIT(i) & rates) {
+			int rate = sband->bitrates[i].bitrate;
+			*pos++ = (u8) (rate / 5);
+			if (++count == 8)
+				break;
+		}
+	}
+
+	if (rates_len > count) {
+		pos = skb_put(skb, rates_len - count + 2);
+		*pos++ = WLAN_EID_EXT_SUPP_RATES;
+		*pos++ = rates_len - count;
+
+		for (i++; i < sband->n_bitrates; i++) {
+			if (BIT(i) & rates) {
+				int rate = sband->bitrates[i].bitrate;
+				*pos++ = (u8) (rate / 5);
+			}
+		}
+	}
+
+	if (capab & WLAN_CAPABILITY_SPECTRUM_MGMT) {
+		/* 1. power capabilities */
+		pos = skb_put(skb, 4);
+		*pos++ = WLAN_EID_PWR_CAPABILITY;
+		*pos++ = 2;
+		*pos++ = 0; /* min tx power */
+		*pos++ = local->hw.conf.channel->max_power; /* max tx power */
+
+		/* 2. supported channels */
+		/* TODO: get this in reg domain format */
+		pos = skb_put(skb, 2 * sband->n_channels + 2);
+		*pos++ = WLAN_EID_SUPPORTED_CHANNELS;
+		*pos++ = 2 * sband->n_channels;
+		for (i = 0; i < sband->n_channels; i++) {
+			*pos++ = ieee80211_frequency_to_channel(
+					sband->channels[i].center_freq);
+			*pos++ = 1; /* one channel in the subband*/
+		}
+	}
+
+	if (ifsta->extra_ie) {
+		pos = skb_put(skb, ifsta->extra_ie_len);
+		memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len);
+	}
+
+	if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
+		pos = skb_put(skb, 9);
+		*pos++ = WLAN_EID_VENDOR_SPECIFIC;
+		*pos++ = 7; /* len */
+		*pos++ = 0x00; /* Microsoft OUI 00:50:F2 */
+		*pos++ = 0x50;
+		*pos++ = 0xf2;
+		*pos++ = 2; /* WME */
+		*pos++ = 0; /* WME info */
+		*pos++ = 1; /* WME ver */
+		*pos++ = 0;
+	}
+
+	/* wmm support is a must to HT */
+	if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED) &&
+	    sband->ht_info.ht_supported &&
+	    (ht_add_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_EXTRA_INFO))) {
+		struct ieee80211_ht_addt_info *ht_add_info =
+			(struct ieee80211_ht_addt_info *)ht_add_ie;
+		u16 cap = sband->ht_info.cap;
+		__le16 tmp;
+		u32 flags = local->hw.conf.channel->flags;
+
+		switch (ht_add_info->ht_param & IEEE80211_HT_IE_CHA_SEC_OFFSET) {
+		case IEEE80211_HT_IE_CHA_SEC_ABOVE:
+			if (flags & IEEE80211_CHAN_NO_FAT_ABOVE) {
+				cap &= ~IEEE80211_HT_CAP_SUP_WIDTH;
+				cap &= ~IEEE80211_HT_CAP_SGI_40;
+			}
+			break;
+		case IEEE80211_HT_IE_CHA_SEC_BELOW:
+			if (flags & IEEE80211_CHAN_NO_FAT_BELOW) {
+				cap &= ~IEEE80211_HT_CAP_SUP_WIDTH;
+				cap &= ~IEEE80211_HT_CAP_SGI_40;
+			}
+			break;
+		}
+
+		tmp = cpu_to_le16(cap);
+		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));
+		memcpy(pos, &tmp, sizeof(u16));
+		pos += sizeof(u16);
+		/* TODO: needs a define here for << 2 */
+		*pos++ = sband->ht_info.ampdu_factor |
+			 (sband->ht_info.ampdu_density << 2);
+		memcpy(pos, sband->ht_info.supp_mcs_set, 16);
+	}
+
+	kfree(ifsta->assocreq_ies);
+	ifsta->assocreq_ies_len = (skb->data + skb->len) - ies;
+	ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL);
+	if (ifsta->assocreq_ies)
+		memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len);
+
+	ieee80211_tx_skb(sdata, skb, 0);
+}
+
+
+static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
+					   u16 stype, u16 reason)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+
+	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);
+		return;
+	}
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+
+	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+	memset(mgmt, 0, 24);
+	memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
+	skb_put(skb, 2);
+	/* u.deauth.reason_code == u.disassoc.reason_code */
+	mgmt->u.deauth.reason_code = cpu_to_le16(reason);
+
+	ieee80211_tx_skb(sdata, skb, 0);
+}
+
+/* MLME */
+static void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
+					 struct ieee80211_sta_bss *bss)
+{
+	struct ieee80211_local *local = sdata->local;
+	int i, have_higher_than_11mbit = 0;
+
+	/* cf. IEEE 802.11 9.2.12 */
+	for (i = 0; i < bss->supp_rates_len; i++)
+		if ((bss->supp_rates[i] & 0x7f) * 5 > 110)
+			have_higher_than_11mbit = 1;
+
+	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
+	    have_higher_than_11mbit)
+		sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
+	else
+		sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
+
+	ieee80211_set_wmm_default(sdata);
+}
+
+static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
+				     struct ieee80211_if_sta *ifsta,
+				     u8 *wmm_param, size_t wmm_param_len)
+{
+	struct ieee80211_tx_queue_params params;
+	size_t left;
+	int count;
+	u8 *pos;
+
+	if (!(ifsta->flags & IEEE80211_STA_WMM_ENABLED))
+		return;
+
+	if (!wmm_param)
+		return;
+
+	if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
+		return;
+	count = wmm_param[6] & 0x0f;
+	if (count == ifsta->wmm_last_param_set)
+		return;
+	ifsta->wmm_last_param_set = count;
+
+	pos = wmm_param + 8;
+	left = wmm_param_len - 8;
+
+	memset(&params, 0, sizeof(params));
+
+	if (!local->ops->conf_tx)
+		return;
+
+	local->wmm_acm = 0;
+	for (; left >= 4; left -= 4, pos += 4) {
+		int aci = (pos[0] >> 5) & 0x03;
+		int acm = (pos[0] >> 4) & 0x01;
+		int queue;
+
+		switch (aci) {
+		case 1:
+			queue = 3;
+			if (acm)
+				local->wmm_acm |= BIT(0) | BIT(3);
+			break;
+		case 2:
+			queue = 1;
+			if (acm)
+				local->wmm_acm |= BIT(4) | BIT(5);
+			break;
+		case 3:
+			queue = 0;
+			if (acm)
+				local->wmm_acm |= BIT(6) | BIT(7);
+			break;
+		case 0:
+		default:
+			queue = 2;
 			if (acm)
 				local->wmm_acm |= BIT(1) | BIT(2);
 			break;
@@ -451,51 +599,16 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
 	return changed;
 }
 
-int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
-				   struct ieee80211_ht_info *ht_info)
+static void ieee80211_sta_send_apinfo(struct ieee80211_sub_if_data *sdata,
+					struct ieee80211_if_sta *ifsta)
 {
-
-	if (ht_info == NULL)
-		return -EINVAL;
-
-	memset(ht_info, 0, sizeof(*ht_info));
-
-	if (ht_cap_ie) {
-		u8 ampdu_info = ht_cap_ie->ampdu_params_info;
-
-		ht_info->ht_supported = 1;
-		ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info);
-		ht_info->ampdu_factor =
-			ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR;
-		ht_info->ampdu_density =
-			(ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2;
-		memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16);
-	} else
-		ht_info->ht_supported = 0;
-
-	return 0;
-}
-
-int ieee80211_ht_addt_info_ie_to_ht_bss_info(
-			struct ieee80211_ht_addt_info *ht_add_info_ie,
-			struct ieee80211_ht_bss_info *bss_info)
-{
-	if (bss_info == NULL)
-		return -EINVAL;
-
-	memset(bss_info, 0, sizeof(*bss_info));
-
-	if (ht_add_info_ie) {
-		u16 op_mode;
-		op_mode = le16_to_cpu(ht_add_info_ie->operation_mode);
-
-		bss_info->primary_channel = ht_add_info_ie->control_chan;
-		bss_info->bss_cap = ht_add_info_ie->ht_param;
-		bss_info->bss_op_mode = (u8)(op_mode & 0xff);
-	}
-
-	return 0;
-}
+	union iwreq_data wrqu;
+	memset(&wrqu, 0, sizeof(wrqu));
+	if (ifsta->flags & IEEE80211_STA_ASSOCIATED)
+		memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
+	wrqu.ap_addr.sa_family = ARPHRD_ETHER;
+	wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
+}
 
 static void ieee80211_sta_send_associnfo(struct ieee80211_sub_if_data *sdata,
 					 struct ieee80211_if_sta *ifsta)
@@ -518,134 +631,54 @@ static void ieee80211_sta_send_associnfo(struct ieee80211_sub_if_data *sdata,
 
 
 static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta,
-				     bool assoc)
+				     struct ieee80211_if_sta *ifsta)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_conf *conf = &local_to_hw(local)->conf;
-	union iwreq_data wrqu;
 	u32 changed = BSS_CHANGED_ASSOC;
 
-	if (assoc) {
-		struct ieee80211_sta_bss *bss;
-
-		ifsta->flags |= IEEE80211_STA_ASSOCIATED;
-
-		if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
-			return;
-
-		bss = ieee80211_rx_bss_get(local, ifsta->bssid,
-					   conf->channel->center_freq,
-					   ifsta->ssid, ifsta->ssid_len);
-		if (bss) {
-			/* set timing information */
-			sdata->bss_conf.beacon_int = bss->beacon_int;
-			sdata->bss_conf.timestamp = bss->timestamp;
-			sdata->bss_conf.dtim_period = bss->dtim_period;
-
-			changed |= ieee80211_handle_bss_capability(sdata, bss);
+	struct ieee80211_sta_bss *bss;
 
-			ieee80211_rx_bss_put(local, bss);
-		}
+	ifsta->flags |= IEEE80211_STA_ASSOCIATED;
 
-		if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
-			changed |= BSS_CHANGED_HT;
-			sdata->bss_conf.assoc_ht = 1;
-			sdata->bss_conf.ht_conf = &conf->ht_conf;
-			sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf;
-		}
+	if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
+		return;
 
-		ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
-		memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
-		memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
-		ieee80211_sta_send_associnfo(sdata, ifsta);
-	} else {
-		netif_carrier_off(sdata->dev);
-		ieee80211_sta_tear_down_BA_sessions(sdata, ifsta->bssid);
-		ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
-		changed |= ieee80211_reset_erp_info(sdata);
+	bss = ieee80211_rx_bss_get(local, ifsta->bssid,
+				   conf->channel->center_freq,
+				   ifsta->ssid, ifsta->ssid_len);
+	if (bss) {
+		/* set timing information */
+		sdata->bss_conf.beacon_int = bss->beacon_int;
+		sdata->bss_conf.timestamp = bss->timestamp;
+		sdata->bss_conf.dtim_period = bss->dtim_period;
 
-		sdata->bss_conf.assoc_ht = 0;
-		sdata->bss_conf.ht_conf = NULL;
-		sdata->bss_conf.ht_bss_conf = NULL;
+		changed |= ieee80211_handle_bss_capability(sdata, bss);
 
-		memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
+		ieee80211_rx_bss_put(local, bss);
 	}
-	ifsta->last_probe = jiffies;
-	ieee80211_led_assoc(local, assoc);
-
-	sdata->bss_conf.assoc = assoc;
-	ieee80211_bss_info_change_notify(sdata, changed);
-
-	if (assoc)
-		netif_carrier_on(sdata->dev);
-
-	wrqu.ap_addr.sa_family = ARPHRD_ETHER;
-	wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
-}
 
-static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
-				   struct ieee80211_if_sta *ifsta, int deauth)
-{
-	if (deauth) {
-		ifsta->direct_probe_tries = 0;
-		ifsta->auth_tries = 0;
+	if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
+		changed |= BSS_CHANGED_HT;
+		sdata->bss_conf.assoc_ht = 1;
+		sdata->bss_conf.ht_conf = &conf->ht_conf;
+		sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf;
 	}
-	ifsta->assoc_scan_tries = 0;
-	ifsta->assoc_tries = 0;
-	ieee80211_set_associated(sdata, ifsta, 0);
-}
-
-void ieee80211_sta_tx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
-		      int encrypt)
-{
-	skb->dev = sdata->local->mdev;
-	skb_set_mac_header(skb, 0);
-	skb_set_network_header(skb, 0);
-	skb_set_transport_header(skb, 0);
-
-	skb->iif = sdata->dev->ifindex;
-	skb->do_not_encrypt = !encrypt;
-
-	dev_queue_xmit(skb);
-}
 
+	ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
+	memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
+	ieee80211_sta_send_associnfo(sdata, ifsta);
 
-static void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
-				struct ieee80211_if_sta *ifsta,
-				int transaction, u8 *extra, size_t extra_len,
-				int encrypt)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
+	ifsta->last_probe = jiffies;
+	ieee80211_led_assoc(local, 1);
 
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
-			    sizeof(*mgmt) + 6 + extra_len);
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
-		       "frame\n", sdata->dev->name);
-		return;
-	}
-	skb_reserve(skb, local->hw.extra_tx_headroom);
+	sdata->bss_conf.assoc = 1;
+	ieee80211_bss_info_change_notify(sdata, changed);
 
-	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6);
-	memset(mgmt, 0, 24 + 6);
-	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-					  IEEE80211_STYPE_AUTH);
-	if (encrypt)
-		mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
-	memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-	mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg);
-	mgmt->u.auth.auth_transaction = cpu_to_le16(transaction);
-	ifsta->auth_transaction = transaction + 1;
-	mgmt->u.auth.status_code = cpu_to_le16(0);
-	if (extra)
-		memcpy(skb_put(skb, extra_len), extra, extra_len);
+	netif_tx_start_all_queues(sdata->dev);
+	netif_carrier_on(sdata->dev);
 
-	ieee80211_sta_tx(sdata, skb, encrypt);
+	ieee80211_sta_send_apinfo(sdata, ifsta);
 }
 
 static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata,
@@ -702,294 +735,76 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata,
 	mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
 }
 
-static int ieee80211_compatible_rates(struct ieee80211_sta_bss *bss,
-				      struct ieee80211_supported_band *sband,
-				      u64 *rates)
-{
-	int i, j, count;
-	*rates = 0;
-	count = 0;
-	for (i = 0; i < bss->supp_rates_len; i++) {
-		int rate = (bss->supp_rates[i] & 0x7F) * 5;
-
-		for (j = 0; j < sband->n_bitrates; j++)
-			if (sband->bitrates[j].bitrate == rate) {
-				*rates |= BIT(j);
-				count++;
-				break;
-			}
-	}
-
-	return count;
-}
-
-static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
-				 struct ieee80211_if_sta *ifsta)
+static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
+				   struct ieee80211_if_sta *ifsta, bool deauth,
+				   bool self_disconnected, u16 reason)
 {
 	struct ieee80211_local *local = sdata->local;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
-	u8 *pos, *ies, *ht_add_ie;
-	int i, len, count, rates_len, supp_rates_len;
-	u16 capab;
-	struct ieee80211_sta_bss *bss;
-	int wmm = 0;
-	struct ieee80211_supported_band *sband;
-	u64 rates = 0;
+	struct sta_info *sta;
+	u32 changed = BSS_CHANGED_ASSOC;
 
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
-			    sizeof(*mgmt) + 200 + ifsta->extra_ie_len +
-			    ifsta->ssid_len);
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
-		       "frame\n", sdata->dev->name);
+	rcu_read_lock();
+
+	sta = sta_info_get(local, ifsta->bssid);
+	if (!sta) {
+		rcu_read_unlock();
 		return;
 	}
-	skb_reserve(skb, local->hw.extra_tx_headroom);
 
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-	capab = ifsta->capab;
-
-	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) {
-		if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
-			capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
-		if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
-			capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
+	if (deauth) {
+		ifsta->direct_probe_tries = 0;
+		ifsta->auth_tries = 0;
 	}
+	ifsta->assoc_scan_tries = 0;
+	ifsta->assoc_tries = 0;
 
-	bss = ieee80211_rx_bss_get(local, ifsta->bssid,
-				   local->hw.conf.channel->center_freq,
-				   ifsta->ssid, ifsta->ssid_len);
-	if (bss) {
-		if (bss->capability & WLAN_CAPABILITY_PRIVACY)
-			capab |= WLAN_CAPABILITY_PRIVACY;
-		if (bss->wmm_used)
-			wmm = 1;
-
-		/* get all rates supported by the device and the AP as
-		 * some APs don't like getting a superset of their rates
-		 * in the association request (e.g. D-Link DAP 1353 in
-		 * b-only mode) */
-		rates_len = ieee80211_compatible_rates(bss, sband, &rates);
+	netif_tx_stop_all_queues(sdata->dev);
+	netif_carrier_off(sdata->dev);
 
-		if ((bss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT) &&
-		    (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT))
-			capab |= WLAN_CAPABILITY_SPECTRUM_MGMT;
+	ieee80211_sta_tear_down_BA_sessions(sdata, sta->addr);
 
-		ieee80211_rx_bss_put(local, bss);
-	} else {
-		rates = ~0;
-		rates_len = sband->n_bitrates;
+	if (self_disconnected) {
+		if (deauth)
+			ieee80211_send_deauth_disassoc(sdata,
+				IEEE80211_STYPE_DEAUTH, reason);
+		else
+			ieee80211_send_deauth_disassoc(sdata,
+				IEEE80211_STYPE_DISASSOC, reason);
 	}
 
-	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
-	memset(mgmt, 0, 24);
-	memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+	ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
+	changed |= ieee80211_reset_erp_info(sdata);
 
-	if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
-		skb_put(skb, 10);
-		mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-						  IEEE80211_STYPE_REASSOC_REQ);
-		mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab);
-		mgmt->u.reassoc_req.listen_interval =
-				cpu_to_le16(local->hw.conf.listen_interval);
-		memcpy(mgmt->u.reassoc_req.current_ap, ifsta->prev_bssid,
-		       ETH_ALEN);
-	} else {
-		skb_put(skb, 4);
-		mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-						  IEEE80211_STYPE_ASSOC_REQ);
-		mgmt->u.assoc_req.capab_info = cpu_to_le16(capab);
-		mgmt->u.reassoc_req.listen_interval =
-				cpu_to_le16(local->hw.conf.listen_interval);
-	}
+	if (sdata->bss_conf.assoc_ht)
+		changed |= BSS_CHANGED_HT;
 
-	/* SSID */
-	ies = pos = skb_put(skb, 2 + ifsta->ssid_len);
-	*pos++ = WLAN_EID_SSID;
-	*pos++ = ifsta->ssid_len;
-	memcpy(pos, ifsta->ssid, ifsta->ssid_len);
+	sdata->bss_conf.assoc_ht = 0;
+	sdata->bss_conf.ht_conf = NULL;
+	sdata->bss_conf.ht_bss_conf = NULL;
 
-	/* add all rates which were marked to be used above */
-	supp_rates_len = rates_len;
-	if (supp_rates_len > 8)
-		supp_rates_len = 8;
+	ieee80211_led_assoc(local, 0);
+	sdata->bss_conf.assoc = 0;
 
-	len = sband->n_bitrates;
-	pos = skb_put(skb, supp_rates_len + 2);
-	*pos++ = WLAN_EID_SUPP_RATES;
-	*pos++ = supp_rates_len;
+	ieee80211_sta_send_apinfo(sdata, ifsta);
 
-	count = 0;
-	for (i = 0; i < sband->n_bitrates; i++) {
-		if (BIT(i) & rates) {
-			int rate = sband->bitrates[i].bitrate;
-			*pos++ = (u8) (rate / 5);
-			if (++count == 8)
-				break;
-		}
-	}
+	if (self_disconnected)
+		ifsta->state = IEEE80211_STA_MLME_DISABLED;
 
-	if (rates_len > count) {
-		pos = skb_put(skb, rates_len - count + 2);
-		*pos++ = WLAN_EID_EXT_SUPP_RATES;
-		*pos++ = rates_len - count;
+	sta_info_unlink(&sta);
 
-		for (i++; i < sband->n_bitrates; i++) {
-			if (BIT(i) & rates) {
-				int rate = sband->bitrates[i].bitrate;
-				*pos++ = (u8) (rate / 5);
-			}
-		}
-	}
+	rcu_read_unlock();
 
-	if (capab & WLAN_CAPABILITY_SPECTRUM_MGMT) {
-		/* 1. power capabilities */
-		pos = skb_put(skb, 4);
-		*pos++ = WLAN_EID_PWR_CAPABILITY;
-		*pos++ = 2;
-		*pos++ = 0; /* min tx power */
-		*pos++ = local->hw.conf.channel->max_power; /* max tx power */
+	sta_info_destroy(sta);
+}
 
-		/* 2. supported channels */
-		/* TODO: get this in reg domain format */
-		pos = skb_put(skb, 2 * sband->n_channels + 2);
-		*pos++ = WLAN_EID_SUPPORTED_CHANNELS;
-		*pos++ = 2 * sband->n_channels;
-		for (i = 0; i < sband->n_channels; i++) {
-			*pos++ = ieee80211_frequency_to_channel(
-					sband->channels[i].center_freq);
-			*pos++ = 1; /* one channel in the subband*/
-		}
-	}
-
-	if (ifsta->extra_ie) {
-		pos = skb_put(skb, ifsta->extra_ie_len);
-		memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len);
-	}
-
-	if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
-		pos = skb_put(skb, 9);
-		*pos++ = WLAN_EID_VENDOR_SPECIFIC;
-		*pos++ = 7; /* len */
-		*pos++ = 0x00; /* Microsoft OUI 00:50:F2 */
-		*pos++ = 0x50;
-		*pos++ = 0xf2;
-		*pos++ = 2; /* WME */
-		*pos++ = 0; /* WME info */
-		*pos++ = 1; /* WME ver */
-		*pos++ = 0;
-	}
-
-	/* wmm support is a must to HT */
-	if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED) &&
-	    sband->ht_info.ht_supported &&
-	    (ht_add_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_EXTRA_INFO))) {
-		struct ieee80211_ht_addt_info *ht_add_info =
-			(struct ieee80211_ht_addt_info *)ht_add_ie;
-		u16 cap = sband->ht_info.cap;
-		__le16 tmp;
-		u32 flags = local->hw.conf.channel->flags;
-
-		switch (ht_add_info->ht_param & IEEE80211_HT_IE_CHA_SEC_OFFSET) {
-		case IEEE80211_HT_IE_CHA_SEC_ABOVE:
-			if (flags & IEEE80211_CHAN_NO_FAT_ABOVE) {
-				cap &= ~IEEE80211_HT_CAP_SUP_WIDTH;
-				cap &= ~IEEE80211_HT_CAP_SGI_40;
-			}
-			break;
-		case IEEE80211_HT_IE_CHA_SEC_BELOW:
-			if (flags & IEEE80211_CHAN_NO_FAT_BELOW) {
-				cap &= ~IEEE80211_HT_CAP_SUP_WIDTH;
-				cap &= ~IEEE80211_HT_CAP_SGI_40;
-			}
-			break;
-		}
-
-		tmp = cpu_to_le16(cap);
-		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));
-		memcpy(pos, &tmp, sizeof(u16));
-		pos += sizeof(u16);
-		/* TODO: needs a define here for << 2 */
-		*pos++ = sband->ht_info.ampdu_factor |
-			 (sband->ht_info.ampdu_density << 2);
-		memcpy(pos, sband->ht_info.supp_mcs_set, 16);
-	}
-
-	kfree(ifsta->assocreq_ies);
-	ifsta->assocreq_ies_len = (skb->data + skb->len) - ies;
-	ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL);
-	if (ifsta->assocreq_ies)
-		memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len);
-
-	ieee80211_sta_tx(sdata, skb, 0);
-}
-
-
-static void ieee80211_send_deauth(struct ieee80211_sub_if_data *sdata,
-				  struct ieee80211_if_sta *ifsta, u16 reason)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
-
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for deauth "
-		       "frame\n", sdata->dev->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, ifsta->bssid, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-					  IEEE80211_STYPE_DEAUTH);
-	skb_put(skb, 2);
-	mgmt->u.deauth.reason_code = cpu_to_le16(reason);
-
-	ieee80211_sta_tx(sdata, skb, 0);
-}
-
-
-static void ieee80211_send_disassoc(struct ieee80211_sub_if_data *sdata,
-				    struct ieee80211_if_sta *ifsta, u16 reason)
+static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata)
 {
-	struct ieee80211_local *local = sdata->local;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
-
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for disassoc "
-		       "frame\n", sdata->dev->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, ifsta->bssid, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-					  IEEE80211_STYPE_DISASSOC);
-	skb_put(skb, 2);
-	mgmt->u.disassoc.reason_code = cpu_to_le16(reason);
-
-	ieee80211_sta_tx(sdata, skb, 0);
+	if (!sdata || !sdata->default_key ||
+	    sdata->default_key->conf.alg != ALG_WEP)
+		return 0;
+	return 1;
 }
 
-
 static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata,
 				      struct ieee80211_if_sta *ifsta)
 {
@@ -1014,849 +829,127 @@ static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_rx_bss_put(local, bss);
 
-	if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked))
-		return 0;
-
-	return 1;
-}
-
-
-static void ieee80211_associate(struct ieee80211_sub_if_data *sdata,
-				struct ieee80211_if_sta *ifsta)
-{
-	DECLARE_MAC_BUF(mac);
-
-	ifsta->assoc_tries++;
-	if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
-		printk(KERN_DEBUG "%s: association with AP %s"
-		       " timed out\n",
-		       sdata->dev->name, print_mac(mac, ifsta->bssid));
-		ifsta->state = IEEE80211_STA_MLME_DISABLED;
-		return;
-	}
-
-	ifsta->state = IEEE80211_STA_MLME_ASSOCIATE;
-	printk(KERN_DEBUG "%s: associate with AP %s\n",
-	       sdata->dev->name, print_mac(mac, ifsta->bssid));
-	if (ieee80211_privacy_mismatch(sdata, ifsta)) {
-		printk(KERN_DEBUG "%s: mismatch in privacy configuration and "
-		       "mixed-cell disabled - abort association\n", sdata->dev->name);
-		ifsta->state = IEEE80211_STA_MLME_DISABLED;
-		return;
-	}
-
-	ieee80211_send_assoc(sdata, ifsta);
-
-	mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
-}
-
-
-static void ieee80211_associated(struct ieee80211_sub_if_data *sdata,
-				 struct ieee80211_if_sta *ifsta)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct sta_info *sta;
-	int disassoc;
-	DECLARE_MAC_BUF(mac);
-
-	/* TODO: start monitoring current AP signal quality and number of
-	 * missed beacons. Scan other channels every now and then and search
-	 * for better APs. */
-	/* TODO: remove expired BSSes */
-
-	ifsta->state = IEEE80211_STA_MLME_ASSOCIATED;
-
-	rcu_read_lock();
-
-	sta = sta_info_get(local, ifsta->bssid);
-	if (!sta) {
-		printk(KERN_DEBUG "%s: No STA entry for own AP %s\n",
-		       sdata->dev->name, print_mac(mac, ifsta->bssid));
-		disassoc = 1;
-	} else {
-		disassoc = 0;
-		if (time_after(jiffies,
-			       sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
-			if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) {
-				printk(KERN_DEBUG "%s: No ProbeResp from "
-				       "current AP %s - assume out of "
-				       "range\n",
-				       sdata->dev->name, print_mac(mac, ifsta->bssid));
-				disassoc = 1;
-				sta_info_unlink(&sta);
-			} else
-				ieee80211_send_probe_req(sdata, ifsta->bssid,
-							 local->scan_ssid,
-							 local->scan_ssid_len);
-			ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL;
-		} else {
-			ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
-			if (time_after(jiffies, ifsta->last_probe +
-				       IEEE80211_PROBE_INTERVAL)) {
-				ifsta->last_probe = jiffies;
-				ieee80211_send_probe_req(sdata, ifsta->bssid,
-							 ifsta->ssid,
-							 ifsta->ssid_len);
-			}
-		}
-	}
-
-	rcu_read_unlock();
-
-	if (disassoc && sta)
-		sta_info_destroy(sta);
-
-	if (disassoc) {
-		ifsta->state = IEEE80211_STA_MLME_DISABLED;
-		ieee80211_set_associated(sdata, ifsta, 0);
-	} else {
-		mod_timer(&ifsta->timer, jiffies +
-				      IEEE80211_MONITORING_INTERVAL);
-	}
-}
-
-
-static void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
-				     u8 *ssid, size_t ssid_len)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_supported_band *sband;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
-	u8 *pos, *supp_rates, *esupp_rates = NULL;
-	int i;
-
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200);
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
-		       "request\n", sdata->dev->name);
-		return;
-	}
-	skb_reserve(skb, local->hw.extra_tx_headroom);
-
-	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
-	memset(mgmt, 0, 24);
-	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-					  IEEE80211_STYPE_PROBE_REQ);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
-	if (dst) {
-		memcpy(mgmt->da, dst, ETH_ALEN);
-		memcpy(mgmt->bssid, dst, ETH_ALEN);
-	} else {
-		memset(mgmt->da, 0xff, ETH_ALEN);
-		memset(mgmt->bssid, 0xff, ETH_ALEN);
-	}
-	pos = skb_put(skb, 2 + ssid_len);
-	*pos++ = WLAN_EID_SSID;
-	*pos++ = ssid_len;
-	memcpy(pos, ssid, ssid_len);
-
-	supp_rates = skb_put(skb, 2);
-	supp_rates[0] = WLAN_EID_SUPP_RATES;
-	supp_rates[1] = 0;
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-	for (i = 0; i < sband->n_bitrates; i++) {
-		struct ieee80211_rate *rate = &sband->bitrates[i];
-		if (esupp_rates) {
-			pos = skb_put(skb, 1);
-			esupp_rates[1]++;
-		} else if (supp_rates[1] == 8) {
-			esupp_rates = skb_put(skb, 3);
-			esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
-			esupp_rates[1] = 1;
-			pos = &esupp_rates[2];
-		} else {
-			pos = skb_put(skb, 1);
-			supp_rates[1]++;
-		}
-		*pos = rate->bitrate / 5;
-	}
-
-	ieee80211_sta_tx(sdata, skb, 0);
-}
-
-
-static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata)
-{
-	if (!sdata || !sdata->default_key ||
-	    sdata->default_key->conf.alg != ALG_WEP)
-		return 0;
-	return 1;
-}
-
-
-static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta)
-{
-	printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name);
-	ifsta->flags |= IEEE80211_STA_AUTHENTICATED;
-	ieee80211_associate(sdata, ifsta);
-}
-
-
-static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta,
-				     struct ieee80211_mgmt *mgmt,
-				     size_t len)
-{
-	u8 *pos;
-	struct ieee802_11_elems elems;
-
-	pos = mgmt->u.auth.variable;
-	ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
-	if (!elems.challenge)
-		return;
-	ieee80211_send_auth(sdata, ifsta, 3, elems.challenge - 2,
-			    elems.challenge_len + 2, 1);
-}
-
-static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *da, u16 tid,
-					u8 dialog_token, u16 status, u16 policy,
-					u16 buf_size, u16 timeout)
-{
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-	struct ieee80211_local *local = sdata->local;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
-	u16 capab;
-
-	skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
-
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer "
-		       "for addba resp frame\n", sdata->dev->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);
-	if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
-		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
-	else
-		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-					  IEEE80211_STYPE_ACTION);
-
-	skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp));
-	mgmt->u.action.category = WLAN_CATEGORY_BACK;
-	mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP;
-	mgmt->u.action.u.addba_resp.dialog_token = dialog_token;
-
-	capab = (u16)(policy << 1);	/* bit 1 aggregation policy */
-	capab |= (u16)(tid << 2); 	/* bit 5:2 TID number */
-	capab |= (u16)(buf_size << 6);	/* bit 15:6 max size of aggregation */
-
-	mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab);
-	mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout);
-	mgmt->u.action.u.addba_resp.status = cpu_to_le16(status);
-
-	ieee80211_sta_tx(sdata, skb, 0);
-
-	return;
-}
-
-void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata, const u8 *da,
-				u16 tid, u8 dialog_token, u16 start_seq_num,
-				u16 agg_size, u16 timeout)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
-	u16 capab;
-
-	skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
-
-	if (!skb) {
-		printk(KERN_ERR "%s: failed to allocate buffer "
-				"for addba request frame\n", sdata->dev->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);
-	if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
-		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
-	else
-		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-
-	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-					  IEEE80211_STYPE_ACTION);
-
-	skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_req));
-
-	mgmt->u.action.category = WLAN_CATEGORY_BACK;
-	mgmt->u.action.u.addba_req.action_code = WLAN_ACTION_ADDBA_REQ;
-
-	mgmt->u.action.u.addba_req.dialog_token = dialog_token;
-	capab = (u16)(1 << 1);		/* bit 1 aggregation policy */
-	capab |= (u16)(tid << 2); 	/* bit 5:2 TID number */
-	capab |= (u16)(agg_size << 6);	/* bit 15:6 max size of aggergation */
-
-	mgmt->u.action.u.addba_req.capab = cpu_to_le16(capab);
-
-	mgmt->u.action.u.addba_req.timeout = cpu_to_le16(timeout);
-	mgmt->u.action.u.addba_req.start_seq_num =
-					cpu_to_le16(start_seq_num << 4);
-
-	ieee80211_sta_tx(sdata, skb, 0);
-}
-
-static void ieee80211_sta_process_addba_request(struct ieee80211_local *local,
-						struct ieee80211_mgmt *mgmt,
-						size_t len)
-{
-	struct ieee80211_hw *hw = &local->hw;
-	struct ieee80211_conf *conf = &hw->conf;
-	struct sta_info *sta;
-	struct tid_ampdu_rx *tid_agg_rx;
-	u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num, status;
-	u8 dialog_token;
-	int ret = -EOPNOTSUPP;
-	DECLARE_MAC_BUF(mac);
-
-	rcu_read_lock();
-
-	sta = sta_info_get(local, mgmt->sa);
-	if (!sta) {
-		rcu_read_unlock();
-		return;
-	}
-
-	/* extract session parameters from addba request frame */
-	dialog_token = mgmt->u.action.u.addba_req.dialog_token;
-	timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout);
-	start_seq_num =
-		le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4;
-
-	capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
-	ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1;
-	tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
-	buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6;
-
-	status = WLAN_STATUS_REQUEST_DECLINED;
-
-	/* sanity check for incoming parameters:
-	 * check if configuration can support the BA policy
-	 * and if buffer size does not exceeds max value */
-	if (((ba_policy != 1)
-		&& (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA)))
-		|| (buf_size > IEEE80211_MAX_AMPDU_BUF)) {
-		status = WLAN_STATUS_INVALID_QOS_PARAM;
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		if (net_ratelimit())
-			printk(KERN_DEBUG "AddBA Req with bad params from "
-				"%s on tid %u. policy %d, buffer size %d\n",
-				print_mac(mac, mgmt->sa), tid, ba_policy,
-				buf_size);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-		goto end_no_lock;
-	}
-	/* determine default buffer size */
-	if (buf_size == 0) {
-		struct ieee80211_supported_band *sband;
-
-		sband = local->hw.wiphy->bands[conf->channel->band];
-		buf_size = IEEE80211_MIN_AMPDU_BUF;
-		buf_size = buf_size << sband->ht_info.ampdu_factor;
-	}
-
-
-	/* examine state machine */
-	spin_lock_bh(&sta->lock);
-
-	if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_IDLE) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		if (net_ratelimit())
-			printk(KERN_DEBUG "unexpected AddBA Req from "
-				"%s on tid %u\n",
-				print_mac(mac, mgmt->sa), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-		goto end;
-	}
-
-	/* prepare A-MPDU MLME for Rx aggregation */
-	sta->ampdu_mlme.tid_rx[tid] =
-			kmalloc(sizeof(struct tid_ampdu_rx), GFP_ATOMIC);
-	if (!sta->ampdu_mlme.tid_rx[tid]) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		if (net_ratelimit())
-			printk(KERN_ERR "allocate rx mlme to tid %d failed\n",
-					tid);
-#endif
-		goto end;
-	}
-	/* rx timer */
-	sta->ampdu_mlme.tid_rx[tid]->session_timer.function =
-				sta_rx_agg_session_timer_expired;
-	sta->ampdu_mlme.tid_rx[tid]->session_timer.data =
-				(unsigned long)&sta->timer_to_tid[tid];
-	init_timer(&sta->ampdu_mlme.tid_rx[tid]->session_timer);
-
-	tid_agg_rx = sta->ampdu_mlme.tid_rx[tid];
-
-	/* prepare reordering buffer */
-	tid_agg_rx->reorder_buf =
-		kmalloc(buf_size * sizeof(struct sk_buff *), GFP_ATOMIC);
-	if (!tid_agg_rx->reorder_buf) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		if (net_ratelimit())
-			printk(KERN_ERR "can not allocate reordering buffer "
-			       "to tid %d\n", tid);
-#endif
-		kfree(sta->ampdu_mlme.tid_rx[tid]);
-		goto end;
-	}
-	memset(tid_agg_rx->reorder_buf, 0,
-		buf_size * sizeof(struct sk_buff *));
-
-	if (local->ops->ampdu_action)
-		ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START,
-					       sta->addr, tid, &start_seq_num);
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
-	if (ret) {
-		kfree(tid_agg_rx->reorder_buf);
-		kfree(tid_agg_rx);
-		sta->ampdu_mlme.tid_rx[tid] = NULL;
-		goto end;
-	}
-
-	/* change state and send addba resp */
-	sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_OPERATIONAL;
-	tid_agg_rx->dialog_token = dialog_token;
-	tid_agg_rx->ssn = start_seq_num;
-	tid_agg_rx->head_seq_num = start_seq_num;
-	tid_agg_rx->buf_size = buf_size;
-	tid_agg_rx->timeout = timeout;
-	tid_agg_rx->stored_mpdu_num = 0;
-	status = WLAN_STATUS_SUCCESS;
-end:
-	spin_unlock_bh(&sta->lock);
-
-end_no_lock:
-	ieee80211_send_addba_resp(sta->sdata, sta->addr, tid,
-				  dialog_token, status, 1, buf_size, timeout);
-	rcu_read_unlock();
-}
-
-static void ieee80211_sta_process_addba_resp(struct ieee80211_local *local,
-					     struct ieee80211_mgmt *mgmt,
-					     size_t len)
-{
-	struct ieee80211_hw *hw = &local->hw;
-	struct sta_info *sta;
-	u16 capab;
-	u16 tid;
-	u8 *state;
-
-	rcu_read_lock();
-
-	sta = sta_info_get(local, mgmt->sa);
-	if (!sta) {
-		rcu_read_unlock();
-		return;
-	}
-
-	capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab);
-	tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
-
-	state = &sta->ampdu_mlme.tid_state_tx[tid];
-
-	spin_lock_bh(&sta->lock);
-
-	if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
-		spin_unlock_bh(&sta->lock);
-		goto addba_resp_exit;
-	}
-
-	if (mgmt->u.action.u.addba_resp.dialog_token !=
-		sta->ampdu_mlme.tid_tx[tid]->dialog_token) {
-		spin_unlock_bh(&sta->lock);
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-		goto addba_resp_exit;
-	}
-
-	del_timer_sync(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	printk(KERN_DEBUG "switched off addBA timer for tid %d \n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-	if (le16_to_cpu(mgmt->u.action.u.addba_resp.status)
-			== WLAN_STATUS_SUCCESS) {
-		*state |= HT_ADDBA_RECEIVED_MSK;
-		sta->ampdu_mlme.addba_req_num[tid] = 0;
-
-		if (*state == HT_AGG_STATE_OPERATIONAL)
-			ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
-
-		spin_unlock_bh(&sta->lock);
-	} else {
-		sta->ampdu_mlme.addba_req_num[tid]++;
-		/* this will allow the state check in stop_BA_session */
-		*state = HT_AGG_STATE_OPERATIONAL;
-		spin_unlock_bh(&sta->lock);
-		ieee80211_stop_tx_ba_session(hw, sta->addr, tid,
-					     WLAN_BACK_INITIATOR);
-	}
-
-addba_resp_exit:
-	rcu_read_unlock();
-}
-
-void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, const u8 *da, u16 tid,
-			  u16 initiator, u16 reason_code)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
-	u16 params;
-
-	skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
-
-	if (!skb) {
-		printk(KERN_ERR "%s: failed to allocate buffer "
-					"for delba frame\n", sdata->dev->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);
-	if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
-		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
-	else
-		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-					  IEEE80211_STYPE_ACTION);
-
-	skb_put(skb, 1 + sizeof(mgmt->u.action.u.delba));
-
-	mgmt->u.action.category = WLAN_CATEGORY_BACK;
-	mgmt->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
-	params = (u16)(initiator << 11); 	/* bit 11 initiator */
-	params |= (u16)(tid << 12); 		/* bit 15:12 TID number */
-
-	mgmt->u.action.u.delba.params = cpu_to_le16(params);
-	mgmt->u.action.u.delba.reason_code = cpu_to_le16(reason_code);
-
-	ieee80211_sta_tx(sdata, skb, 0);
-}
-
-void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct sk_buff *skb;
-	struct ieee80211_bar *bar;
-	u16 bar_control = 0;
-
-	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);
-		return;
-	}
-	skb_reserve(skb, local->hw.extra_tx_headroom);
-	bar = (struct ieee80211_bar *)skb_put(skb, sizeof(*bar));
-	memset(bar, 0, sizeof(*bar));
-	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);
-	bar_control |= (u16)IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL;
-	bar_control |= (u16)IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA;
-	bar_control |= (u16)(tid << 12);
-	bar->control = cpu_to_le16(bar_control);
-	bar->start_seq_num = cpu_to_le16(ssn);
-
-	ieee80211_sta_tx(sdata, skb, 0);
+	if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked))
+		return 0;
+
+	return 1;
 }
 
-void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid,
-					u16 initiator, u16 reason)
+static void ieee80211_associate(struct ieee80211_sub_if_data *sdata,
+				struct ieee80211_if_sta *ifsta)
 {
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_hw *hw = &local->hw;
-	struct sta_info *sta;
-	int ret, i;
 	DECLARE_MAC_BUF(mac);
 
-	rcu_read_lock();
-
-	sta = sta_info_get(local, ra);
-	if (!sta) {
-		rcu_read_unlock();
+	ifsta->assoc_tries++;
+	if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
+		printk(KERN_DEBUG "%s: association with AP %s"
+		       " timed out\n",
+		       sdata->dev->name, print_mac(mac, ifsta->bssid));
+		ifsta->state = IEEE80211_STA_MLME_DISABLED;
 		return;
 	}
 
-	/* check if TID is in operational state */
-	spin_lock_bh(&sta->lock);
-	if (sta->ampdu_mlme.tid_state_rx[tid]
-				!= HT_AGG_STATE_OPERATIONAL) {
-		spin_unlock_bh(&sta->lock);
-		rcu_read_unlock();
+	ifsta->state = IEEE80211_STA_MLME_ASSOCIATE;
+	printk(KERN_DEBUG "%s: associate with AP %s\n",
+	       sdata->dev->name, print_mac(mac, ifsta->bssid));
+	if (ieee80211_privacy_mismatch(sdata, ifsta)) {
+		printk(KERN_DEBUG "%s: mismatch in privacy configuration and "
+		       "mixed-cell disabled - abort association\n", sdata->dev->name);
+		ifsta->state = IEEE80211_STA_MLME_DISABLED;
 		return;
 	}
-	sta->ampdu_mlme.tid_state_rx[tid] =
-		HT_AGG_STATE_REQ_STOP_BA_MSK |
-		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
-	spin_unlock_bh(&sta->lock);
-
-	/* stop HW Rx aggregation. ampdu_action existence
-	 * already verified in session init so we add the BUG_ON */
-	BUG_ON(!local->ops->ampdu_action);
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	printk(KERN_DEBUG "Rx BA session stop requested for %s tid %u\n",
-				print_mac(mac, ra), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
-	ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP,
-					ra, tid, NULL);
-	if (ret)
-		printk(KERN_DEBUG "HW problem - can not stop rx "
-				"aggregation for tid %d\n", tid);
-
-	/* shutdown timer has not expired */
-	if (initiator != WLAN_BACK_TIMER)
-		del_timer_sync(&sta->ampdu_mlme.tid_rx[tid]->session_timer);
-
-	/* check if this is a self generated aggregation halt */
-	if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER)
-		ieee80211_send_delba(sdata, ra, tid, 0, reason);
-
-	/* free the reordering buffer */
-	for (i = 0; i < sta->ampdu_mlme.tid_rx[tid]->buf_size; i++) {
-		if (sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]) {
-			/* release the reordered frames */
-			dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]);
-			sta->ampdu_mlme.tid_rx[tid]->stored_mpdu_num--;
-			sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i] = NULL;
-		}
-	}
-	/* free resources */
-	kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_buf);
-	kfree(sta->ampdu_mlme.tid_rx[tid]);
-	sta->ampdu_mlme.tid_rx[tid] = NULL;
-	sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_IDLE;
 
-	rcu_read_unlock();
+	ieee80211_send_assoc(sdata, ifsta);
+
+	mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
 }
 
 
-static void ieee80211_sta_process_delba(struct ieee80211_sub_if_data *sdata,
-			struct ieee80211_mgmt *mgmt, size_t len)
+static void ieee80211_associated(struct ieee80211_sub_if_data *sdata,
+				 struct ieee80211_if_sta *ifsta)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
-	u16 tid, params;
-	u16 initiator;
+	int disassoc;
 	DECLARE_MAC_BUF(mac);
 
-	rcu_read_lock();
-
-	sta = sta_info_get(local, mgmt->sa);
-	if (!sta) {
-		rcu_read_unlock();
-		return;
-	}
-
-	params = le16_to_cpu(mgmt->u.action.u.delba.params);
-	tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12;
-	initiator = (params & IEEE80211_DELBA_PARAM_INITIATOR_MASK) >> 11;
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	if (net_ratelimit())
-		printk(KERN_DEBUG "delba from %s (%s) tid %d reason code %d\n",
-			print_mac(mac, mgmt->sa),
-			initiator ? "initiator" : "recipient", tid,
-			mgmt->u.action.u.delba.reason_code);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
-	if (initiator == WLAN_BACK_INITIATOR)
-		ieee80211_sta_stop_rx_ba_session(sdata, sta->addr, tid,
-						 WLAN_BACK_INITIATOR, 0);
-	else { /* WLAN_BACK_RECIPIENT */
-		spin_lock_bh(&sta->lock);
-		sta->ampdu_mlme.tid_state_tx[tid] =
-				HT_AGG_STATE_OPERATIONAL;
-		spin_unlock_bh(&sta->lock);
-		ieee80211_stop_tx_ba_session(&local->hw, sta->addr, tid,
-					     WLAN_BACK_RECIPIENT);
-	}
-	rcu_read_unlock();
-}
+	/* TODO: start monitoring current AP signal quality and number of
+	 * missed beacons. Scan other channels every now and then and search
+	 * for better APs. */
+	/* TODO: remove expired BSSes */
 
-/*
- * After sending add Block Ack request we activated a timer until
- * add Block Ack response will arrive from the recipient.
- * If this timer expires sta_addba_resp_timer_expired will be executed.
- */
-void sta_addba_resp_timer_expired(unsigned long data)
-{
-	/* not an elegant detour, but there is no choice as the timer passes
-	 * only one argument, and both sta_info and TID are needed, so init
-	 * flow in sta_info_create gives the TID as data, while the timer_to_id
-	 * array gives the sta through container_of */
-	u16 tid = *(u8 *)data;
-	struct sta_info *temp_sta = container_of((void *)data,
-		struct sta_info, timer_to_tid[tid]);
-
-	struct ieee80211_local *local = temp_sta->local;
-	struct ieee80211_hw *hw = &local->hw;
-	struct sta_info *sta;
-	u8 *state;
+	ifsta->state = IEEE80211_STA_MLME_ASSOCIATED;
 
 	rcu_read_lock();
 
-	sta = sta_info_get(local, temp_sta->addr);
+	sta = sta_info_get(local, ifsta->bssid);
 	if (!sta) {
-		rcu_read_unlock();
-		return;
-	}
-
-	state = &sta->ampdu_mlme.tid_state_tx[tid];
-	/* check if the TID waits for addBA response */
-	spin_lock_bh(&sta->lock);
-	if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
-		spin_unlock_bh(&sta->lock);
-		*state = HT_AGG_STATE_IDLE;
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "timer expired on tid %d but we are not "
-				"expecting addBA response there", tid);
-#endif
-		goto timer_expired_exit;
+		printk(KERN_DEBUG "%s: No STA entry for own AP %s\n",
+		       sdata->dev->name, print_mac(mac, ifsta->bssid));
+		disassoc = 1;
+	} else {
+		disassoc = 0;
+		if (time_after(jiffies,
+			       sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
+			if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) {
+				printk(KERN_DEBUG "%s: No ProbeResp from "
+				       "current AP %s - assume out of "
+				       "range\n",
+				       sdata->dev->name, print_mac(mac, ifsta->bssid));
+				disassoc = 1;
+			} else
+				ieee80211_send_probe_req(sdata, ifsta->bssid,
+							 local->scan_ssid,
+							 local->scan_ssid_len);
+			ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL;
+		} else {
+			ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
+			if (time_after(jiffies, ifsta->last_probe +
+				       IEEE80211_PROBE_INTERVAL)) {
+				ifsta->last_probe = jiffies;
+				ieee80211_send_probe_req(sdata, ifsta->bssid,
+							 ifsta->ssid,
+							 ifsta->ssid_len);
+			}
+		}
 	}
 
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid);
-#endif
-
-	/* go through the state check in stop_BA_session */
-	*state = HT_AGG_STATE_OPERATIONAL;
-	spin_unlock_bh(&sta->lock);
-	ieee80211_stop_tx_ba_session(hw, temp_sta->addr, tid,
-				     WLAN_BACK_INITIATOR);
-
-timer_expired_exit:
 	rcu_read_unlock();
-}
 
-/*
- * After accepting the AddBA Request we activated a timer,
- * resetting it after each frame that arrives from the originator.
- * if this timer expires ieee80211_sta_stop_rx_ba_session will be executed.
- */
-static void sta_rx_agg_session_timer_expired(unsigned long data)
-{
-	/* not an elegant detour, but there is no choice as the timer passes
-	 * only one argument, and various sta_info are needed here, so init
-	 * flow in sta_info_create gives the TID as data, while the timer_to_id
-	 * array gives the sta through container_of */
-	u8 *ptid = (u8 *)data;
-	u8 *timer_to_id = ptid - *ptid;
-	struct sta_info *sta = container_of(timer_to_id, struct sta_info,
-					 timer_to_tid[0]);
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
-	printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid);
-#endif
-	ieee80211_sta_stop_rx_ba_session(sta->sdata, sta->addr,
-					 (u16)*ptid, WLAN_BACK_TIMER,
-					 WLAN_REASON_QSTA_TIMEOUT);
+	if (disassoc)
+		ieee80211_set_disassoc(sdata, ifsta, true, true,
+					WLAN_REASON_PREV_AUTH_NOT_VALID);
+	else
+		mod_timer(&ifsta->timer, jiffies +
+				      IEEE80211_MONITORING_INTERVAL);
 }
 
-void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr)
-{
-	struct ieee80211_local *local = sdata->local;
-	int i;
 
-	for (i = 0; i <  STA_TID_NUM; i++) {
-		ieee80211_stop_tx_ba_session(&local->hw, addr, i,
-					     WLAN_BACK_INITIATOR);
-		ieee80211_sta_stop_rx_ba_session(sdata, addr, i,
-						 WLAN_BACK_RECIPIENT,
-						 WLAN_REASON_QSTA_LEAVE_QBSS);
-	}
+static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata,
+				     struct ieee80211_if_sta *ifsta)
+{
+	printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name);
+	ifsta->flags |= IEEE80211_STA_AUTHENTICATED;
+	ieee80211_associate(sdata, ifsta);
 }
 
-static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_data *sdata,
-					struct ieee80211_msrment_ie *request_ie,
-					const u8 *da, const u8 *bssid,
-					u8 dialog_token)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *msr_report;
 
-	skb = dev_alloc_skb(sizeof(*msr_report) + local->hw.extra_tx_headroom +
-				sizeof(struct ieee80211_msrment_ie));
+static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
+				     struct ieee80211_if_sta *ifsta,
+				     struct ieee80211_mgmt *mgmt,
+				     size_t len)
+{
+	u8 *pos;
+	struct ieee802_11_elems elems;
 
-	if (!skb) {
-		printk(KERN_ERR "%s: failed to allocate buffer for "
-				"measurement report frame\n", sdata->dev->name);
+	pos = mgmt->u.auth.variable;
+	ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
+	if (!elems.challenge)
 		return;
-	}
-
-	skb_reserve(skb, local->hw.extra_tx_headroom);
-	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->bssid, bssid, ETH_ALEN);
-	msr_report->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-						IEEE80211_STYPE_ACTION);
-
-	skb_put(skb, 1 + sizeof(msr_report->u.action.u.measurement));
-	msr_report->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
-	msr_report->u.action.u.measurement.action_code =
-				WLAN_ACTION_SPCT_MSR_RPRT;
-	msr_report->u.action.u.measurement.dialog_token = dialog_token;
-
-	msr_report->u.action.u.measurement.element_id = WLAN_EID_MEASURE_REPORT;
-	msr_report->u.action.u.measurement.length =
-			sizeof(struct ieee80211_msrment_ie);
-
-	memset(&msr_report->u.action.u.measurement.msr_elem, 0,
-		sizeof(struct ieee80211_msrment_ie));
-	msr_report->u.action.u.measurement.msr_elem.token = request_ie->token;
-	msr_report->u.action.u.measurement.msr_elem.mode |=
-			IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED;
-	msr_report->u.action.u.measurement.msr_elem.type = request_ie->type;
-
-	ieee80211_sta_tx(sdata, skb, 0);
-}
-
-static void ieee80211_sta_process_measurement_req(struct ieee80211_sub_if_data *sdata,
-						struct ieee80211_mgmt *mgmt,
-						size_t len)
-{
-	/*
-	 * Ignoring measurement request is spec violation.
-	 * Mandatory measurements must be reported optional
-	 * measurements might be refused or reported incapable
-	 * For now just refuse
-	 * TODO: Answer basic measurement as unmeasured
-	 */
-	ieee80211_send_refuse_measurement_request(sdata,
-			&mgmt->u.action.u.measurement.msr_elem,
-			mgmt->sa, mgmt->bssid,
-			mgmt->u.action.u.measurement.dialog_token);
+	ieee80211_send_auth(sdata, ifsta, 3, elems.challenge - 2,
+			    elems.challenge_len + 2, 1);
 }
 
-
 static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 				   struct ieee80211_if_sta *ifsta,
 				   struct ieee80211_mgmt *mgmt,
@@ -1977,7 +1070,7 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 				      IEEE80211_RETRY_AUTH_INTERVAL);
 	}
 
-	ieee80211_set_disassoc(sdata, ifsta, 1);
+	ieee80211_set_disassoc(sdata, ifsta, true, false, 0);
 	ifsta->flags &= ~IEEE80211_STA_AUTHENTICATED;
 }
 
@@ -2007,7 +1100,7 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
 				      IEEE80211_RETRY_AUTH_INTERVAL);
 	}
 
-	ieee80211_set_disassoc(sdata, ifsta, 0);
+	ieee80211_set_disassoc(sdata, ifsta, false, false, 0);
 }
 
 
@@ -2143,264 +1236,67 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		if (rate > 110)
 			have_higher_than_11mbit = true;
 
-		for (j = 0; j < sband->n_bitrates; j++) {
-			if (sband->bitrates[j].bitrate == rate)
-				rates |= BIT(j);
-			if (elems.supp_rates[i] & 0x80)
-				basic_rates |= BIT(j);
-		}
-	}
-
-	for (i = 0; i < elems.ext_supp_rates_len; i++) {
-		int rate = (elems.ext_supp_rates[i] & 0x7f) * 5;
-
-		if (rate > 110)
-			have_higher_than_11mbit = true;
-
-		for (j = 0; j < sband->n_bitrates; j++) {
-			if (sband->bitrates[j].bitrate == rate)
-				rates |= BIT(j);
-			if (elems.ext_supp_rates[i] & 0x80)
-				basic_rates |= BIT(j);
-		}
-	}
-
-	sta->supp_rates[local->hw.conf.channel->band] = rates;
-	sdata->basic_rates = basic_rates;
-
-	/* cf. IEEE 802.11 9.2.12 */
-	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
-	    have_higher_than_11mbit)
-		sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
-	else
-		sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
-
-	if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
-	    (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
-		struct ieee80211_ht_bss_info bss_info;
-		ieee80211_ht_cap_ie_to_ht_info(
-				(struct ieee80211_ht_cap *)
-				elems.ht_cap_elem, &sta->ht_info);
-		ieee80211_ht_addt_info_ie_to_ht_bss_info(
-				(struct ieee80211_ht_addt_info *)
-				elems.ht_info_elem, &bss_info);
-		ieee80211_handle_ht(local, 1, &sta->ht_info, &bss_info);
-	}
-
-	rate_control_rate_init(sta, local);
-
-	if (elems.wmm_param) {
-		set_sta_flags(sta, WLAN_STA_WME);
-		rcu_read_unlock();
-		ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param,
-					 elems.wmm_param_len);
-	} else
-		rcu_read_unlock();
-
-	/* set AID and assoc capability,
-	 * ieee80211_set_associated() will tell the driver */
-	bss_conf->aid = aid;
-	bss_conf->assoc_capability = capab_info;
-	ieee80211_set_associated(sdata, ifsta, 1);
-
-	ieee80211_associated(sdata, ifsta);
-}
-
-
-/* Caller must hold local->sta_bss_lock */
-static void __ieee80211_rx_bss_hash_add(struct ieee80211_local *local,
-					struct ieee80211_sta_bss *bss)
-{
-	u8 hash_idx;
-
-	if (bss_mesh_cfg(bss))
-		hash_idx = mesh_id_hash(bss_mesh_id(bss),
-					bss_mesh_id_len(bss));
-	else
-		hash_idx = STA_HASH(bss->bssid);
-
-	bss->hnext = local->sta_bss_hash[hash_idx];
-	local->sta_bss_hash[hash_idx] = bss;
-}
-
-
-/* Caller must hold local->sta_bss_lock */
-static void __ieee80211_rx_bss_hash_del(struct ieee80211_local *local,
-					struct ieee80211_sta_bss *bss)
-{
-	struct ieee80211_sta_bss *b, *prev = NULL;
-	b = local->sta_bss_hash[STA_HASH(bss->bssid)];
-	while (b) {
-		if (b == bss) {
-			if (!prev)
-				local->sta_bss_hash[STA_HASH(bss->bssid)] =
-					bss->hnext;
-			else
-				prev->hnext = bss->hnext;
-			break;
-		}
-		prev = b;
-		b = b->hnext;
-	}
-}
-
-
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_add(struct ieee80211_sub_if_data *sdata, u8 *bssid, int freq,
-		     u8 *ssid, u8 ssid_len)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_sta_bss *bss;
-
-	bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
-	if (!bss)
-		return NULL;
-	atomic_inc(&bss->users);
-	atomic_inc(&bss->users);
-	memcpy(bss->bssid, bssid, ETH_ALEN);
-	bss->freq = freq;
-	if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) {
-		memcpy(bss->ssid, ssid, ssid_len);
-		bss->ssid_len = ssid_len;
-	}
-
-	spin_lock_bh(&local->sta_bss_lock);
-	/* TODO: order by RSSI? */
-	list_add_tail(&bss->list, &local->sta_bss_list);
-	__ieee80211_rx_bss_hash_add(local, bss);
-	spin_unlock_bh(&local->sta_bss_lock);
-	return bss;
-}
-
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
-		     u8 *ssid, u8 ssid_len)
-{
-	struct ieee80211_sta_bss *bss;
-
-	spin_lock_bh(&local->sta_bss_lock);
-	bss = local->sta_bss_hash[STA_HASH(bssid)];
-	while (bss) {
-		if (!bss_mesh_cfg(bss) &&
-		    !memcmp(bss->bssid, bssid, ETH_ALEN) &&
-		    bss->freq == freq &&
-		    bss->ssid_len == ssid_len &&
-		    (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) {
-			atomic_inc(&bss->users);
-			break;
-		}
-		bss = bss->hnext;
-	}
-	spin_unlock_bh(&local->sta_bss_lock);
-	return bss;
-}
-
-#ifdef CONFIG_MAC80211_MESH
-static struct ieee80211_sta_bss *
-ieee80211_rx_mesh_bss_get(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len,
-			  u8 *mesh_cfg, int freq)
-{
-	struct ieee80211_sta_bss *bss;
-
-	spin_lock_bh(&local->sta_bss_lock);
-	bss = local->sta_bss_hash[mesh_id_hash(mesh_id, mesh_id_len)];
-	while (bss) {
-		if (bss_mesh_cfg(bss) &&
-		    !memcmp(bss_mesh_cfg(bss), mesh_cfg, MESH_CFG_CMP_LEN) &&
-		    bss->freq == freq &&
-		    mesh_id_len == bss->mesh_id_len &&
-		    (mesh_id_len == 0 || !memcmp(bss->mesh_id, mesh_id,
-						 mesh_id_len))) {
-			atomic_inc(&bss->users);
-			break;
-		}
-		bss = bss->hnext;
-	}
-	spin_unlock_bh(&local->sta_bss_lock);
-	return bss;
-}
-
-static struct ieee80211_sta_bss *
-ieee80211_rx_mesh_bss_add(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len,
-			  u8 *mesh_cfg, int mesh_config_len, int freq)
-{
-	struct ieee80211_sta_bss *bss;
-
-	if (mesh_config_len != MESH_CFG_LEN)
-		return NULL;
-
-	bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
-	if (!bss)
-		return NULL;
-
-	bss->mesh_cfg = kmalloc(MESH_CFG_CMP_LEN, GFP_ATOMIC);
-	if (!bss->mesh_cfg) {
-		kfree(bss);
-		return NULL;
-	}
-
-	if (mesh_id_len && mesh_id_len <= IEEE80211_MAX_MESH_ID_LEN) {
-		bss->mesh_id = kmalloc(mesh_id_len, GFP_ATOMIC);
-		if (!bss->mesh_id) {
-			kfree(bss->mesh_cfg);
-			kfree(bss);
-			return NULL;
+		for (j = 0; j < sband->n_bitrates; j++) {
+			if (sband->bitrates[j].bitrate == rate)
+				rates |= BIT(j);
+			if (elems.supp_rates[i] & 0x80)
+				basic_rates |= BIT(j);
 		}
-		memcpy(bss->mesh_id, mesh_id, mesh_id_len);
 	}
 
-	atomic_inc(&bss->users);
-	atomic_inc(&bss->users);
-	memcpy(bss->mesh_cfg, mesh_cfg, MESH_CFG_CMP_LEN);
-	bss->mesh_id_len = mesh_id_len;
-	bss->freq = freq;
-	spin_lock_bh(&local->sta_bss_lock);
-	/* TODO: order by RSSI? */
-	list_add_tail(&bss->list, &local->sta_bss_list);
-	__ieee80211_rx_bss_hash_add(local, bss);
-	spin_unlock_bh(&local->sta_bss_lock);
-	return bss;
-}
-#endif
-
-static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
-{
-	kfree(bss->ies);
-	kfree(bss_mesh_id(bss));
-	kfree(bss_mesh_cfg(bss));
-	kfree(bss);
-}
+	for (i = 0; i < elems.ext_supp_rates_len; i++) {
+		int rate = (elems.ext_supp_rates[i] & 0x7f) * 5;
 
+		if (rate > 110)
+			have_higher_than_11mbit = true;
 
-static void ieee80211_rx_bss_put(struct ieee80211_local *local,
-				 struct ieee80211_sta_bss *bss)
-{
-	local_bh_disable();
-	if (!atomic_dec_and_lock(&bss->users, &local->sta_bss_lock)) {
-		local_bh_enable();
-		return;
+		for (j = 0; j < sband->n_bitrates; j++) {
+			if (sband->bitrates[j].bitrate == rate)
+				rates |= BIT(j);
+			if (elems.ext_supp_rates[i] & 0x80)
+				basic_rates |= BIT(j);
+		}
 	}
 
-	__ieee80211_rx_bss_hash_del(local, bss);
-	list_del(&bss->list);
-	spin_unlock_bh(&local->sta_bss_lock);
-	ieee80211_rx_bss_free(bss);
-}
+	sta->supp_rates[local->hw.conf.channel->band] = rates;
+	sdata->basic_rates = basic_rates;
+
+	/* cf. IEEE 802.11 9.2.12 */
+	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
+	    have_higher_than_11mbit)
+		sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
+	else
+		sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
 
+	if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
+	    (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
+		struct ieee80211_ht_bss_info bss_info;
+		ieee80211_ht_cap_ie_to_ht_info(
+				(struct ieee80211_ht_cap *)
+				elems.ht_cap_elem, &sta->ht_info);
+		ieee80211_ht_addt_info_ie_to_ht_bss_info(
+				(struct ieee80211_ht_addt_info *)
+				elems.ht_info_elem, &bss_info);
+		ieee80211_handle_ht(local, 1, &sta->ht_info, &bss_info);
+	}
 
-void ieee80211_rx_bss_list_init(struct ieee80211_local *local)
-{
-	spin_lock_init(&local->sta_bss_lock);
-	INIT_LIST_HEAD(&local->sta_bss_list);
-}
+	rate_control_rate_init(sta, local);
 
+	if (elems.wmm_param) {
+		set_sta_flags(sta, WLAN_STA_WME);
+		rcu_read_unlock();
+		ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param,
+					 elems.wmm_param_len);
+	} else
+		rcu_read_unlock();
 
-void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local)
-{
-	struct ieee80211_sta_bss *bss, *tmp;
+	/* set AID and assoc capability,
+	 * ieee80211_set_associated() will tell the driver */
+	bss_conf->aid = aid;
+	bss_conf->assoc_capability = capab_info;
+	ieee80211_set_associated(sdata, ifsta);
 
-	list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list)
-		ieee80211_rx_bss_put(local, bss);
+	ieee80211_associated(sdata, ifsta);
 }
 
 
@@ -2508,7 +1404,7 @@ static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	}
 	ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates;
 
-	ieee80211_sta_def_wmm_params(sdata, bss, 1);
+	ieee80211_sta_def_wmm_params(sdata, bss);
 
 	ifsta->state = IEEE80211_STA_MLME_IBSS_JOINED;
 	mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
@@ -2588,21 +1484,29 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 				  struct ieee80211_mgmt *mgmt,
 				  size_t len,
 				  struct ieee80211_rx_status *rx_status,
-				  struct ieee802_11_elems *elems)
+				  struct ieee802_11_elems *elems,
+				  bool beacon)
 {
 	struct ieee80211_local *local = sdata->local;
-	int freq, clen;
+	int freq;
 	struct ieee80211_sta_bss *bss;
 	struct sta_info *sta;
 	struct ieee80211_channel *channel;
 	u64 beacon_timestamp, rx_timestamp;
 	u64 supp_rates = 0;
-	bool beacon = ieee80211_is_beacon(mgmt->frame_control);
 	enum ieee80211_band band = rx_status->band;
 	DECLARE_MAC_BUF(mac);
 	DECLARE_MAC_BUF(mac2);
 
-	beacon_timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
+	if (elems->ds_params && elems->ds_params_len == 1)
+		freq = ieee80211_channel_to_frequency(elems->ds_params[0]);
+	else
+		freq = rx_status->freq;
+
+	channel = ieee80211_get_channel(local->hw.wiphy, freq);
+
+	if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
+		return;
 
 	if (ieee80211_vif_is_mesh(&sdata->vif) && elems->mesh_id &&
 	    elems->mesh_config && mesh_matches_local(elems, sdata)) {
@@ -2612,13 +1516,12 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 				      mesh_peer_accepts_plinks(elems));
 	}
 
-	rcu_read_lock();
-
 	if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && elems->supp_rates &&
 	    memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
-
 		supp_rates = ieee80211_sta_get_rates(local, elems, band);
 
+		rcu_read_lock();
+
 		sta = sta_info_get(local, mgmt->sa);
 		if (sta) {
 			u64 prev_rates;
@@ -2642,95 +1545,18 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 			ieee80211_ibss_add_sta(sdata, NULL, mgmt->bssid,
 					       mgmt->sa, supp_rates);
 		}
-	}
-
-	rcu_read_unlock();
-
-	if (elems->ds_params && elems->ds_params_len == 1)
-		freq = ieee80211_channel_to_frequency(elems->ds_params[0]);
-	else
-		freq = rx_status->freq;
-
-	channel = ieee80211_get_channel(local->hw.wiphy, freq);
-
-	if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
-		return;
-
-#ifdef CONFIG_MAC80211_MESH
-	if (elems->mesh_config)
-		bss = ieee80211_rx_mesh_bss_get(local, elems->mesh_id,
-				elems->mesh_id_len, elems->mesh_config, freq);
-	else
-#endif
-		bss = ieee80211_rx_bss_get(local, mgmt->bssid, freq,
-					   elems->ssid, elems->ssid_len);
-	if (!bss) {
-#ifdef CONFIG_MAC80211_MESH
-		if (elems->mesh_config)
-			bss = ieee80211_rx_mesh_bss_add(local, elems->mesh_id,
-				elems->mesh_id_len, elems->mesh_config,
-				elems->mesh_config_len, freq);
-		else
-#endif
-			bss = ieee80211_rx_bss_add(sdata, mgmt->bssid, freq,
-						  elems->ssid, elems->ssid_len);
-		if (!bss)
-			return;
-	} else {
-#if 0
-		/* TODO: order by RSSI? */
-		spin_lock_bh(&local->sta_bss_lock);
-		list_move_tail(&bss->list, &local->sta_bss_list);
-		spin_unlock_bh(&local->sta_bss_lock);
-#endif
-	}
-
-	/* save the ERP value so that it is available at association time */
-	if (elems->erp_info && elems->erp_info_len >= 1) {
-		bss->erp_value = elems->erp_info[0];
-		bss->has_erp_value = 1;
-	}
-
-	bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
-	bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
 
-	if (elems->tim) {
-		struct ieee80211_tim_ie *tim_ie =
-			(struct ieee80211_tim_ie *)elems->tim;
-		bss->dtim_period = tim_ie->dtim_period;
+		rcu_read_unlock();
 	}
 
-	/* set default value for buggy APs */
-	if (!elems->tim || bss->dtim_period == 0)
-		bss->dtim_period = 1;
-
-	bss->supp_rates_len = 0;
-	if (elems->supp_rates) {
-		clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
-		if (clen > elems->supp_rates_len)
-			clen = elems->supp_rates_len;
-		memcpy(&bss->supp_rates[bss->supp_rates_len], elems->supp_rates,
-		       clen);
-		bss->supp_rates_len += clen;
-	}
-	if (elems->ext_supp_rates) {
-		clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
-		if (clen > elems->ext_supp_rates_len)
-			clen = elems->ext_supp_rates_len;
-		memcpy(&bss->supp_rates[bss->supp_rates_len],
-		       elems->ext_supp_rates, clen);
-		bss->supp_rates_len += clen;
-	}
+	bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
+					freq, beacon);
+	if (!bss)
+		return;
 
-	bss->band = band;
+	/* was just updated in ieee80211_bss_info_update */
+	beacon_timestamp = bss->timestamp;
 
-	bss->timestamp = beacon_timestamp;
-	bss->last_update = jiffies;
-	bss->signal = rx_status->signal;
-	bss->noise = rx_status->noise;
-	bss->qual = rx_status->qual;
-	if (!beacon)
-		bss->last_probe_resp = jiffies;
 	/*
 	 * In STA mode, the remaining parameters should not be overridden
 	 * by beacons because they're not necessarily accurate there.
@@ -2741,21 +1567,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 		return;
 	}
 
-	if (bss->ies == NULL || bss->ies_len < elems->total_len) {
-		kfree(bss->ies);
-		bss->ies = kmalloc(elems->total_len, GFP_ATOMIC);
-	}
-	if (bss->ies) {
-		memcpy(bss->ies, elems->ie_start, elems->total_len);
-		bss->ies_len = elems->total_len;
-	} else
-		bss->ies_len = 0;
-
-	bss->wmm_used = elems->wmm_param || elems->wmm_info;
-
 	/* check if we need to merge IBSS */
 	if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && beacon &&
-	    !local->sta_sw_scanning && !local->sta_hw_scanning &&
 	    bss->capability & WLAN_CAPABILITY_IBSS &&
 	    bss->freq == local->oper_channel->center_freq &&
 	    elems->ssid_len == sdata->u.sta.ssid_len &&
@@ -2832,7 +1645,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 	ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
 				&elems);
 
-	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems);
+	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false);
 
 	/* direct probe may be part of the association flow */
 	if (test_and_clear_bit(IEEE80211_STA_REQ_DIRECT_PROBE,
@@ -2863,7 +1676,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 
 	ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
 
-	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems);
+	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, true);
 
 	if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
 		return;
@@ -2876,12 +1689,6 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param,
 				 elems.wmm_param_len);
 
-	/* Do not send changes to driver if we are scanning. This removes
-	 * requirement that driver's bss_info_changed function needs to be
-	 * atomic. */
-	if (local->sta_sw_scanning || local->sta_hw_scanning)
-		return;
-
 	if (elems.erp_info && elems.erp_info_len >= 1)
 		changed |= ieee80211_handle_erp_ie(sdata, elems.erp_info[0]);
 	else {
@@ -2975,7 +1782,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 	printk(KERN_DEBUG "%s: Sending ProbeResp to %s\n",
 	       sdata->dev->name, print_mac(mac, resp->da));
 #endif /* CONFIG_MAC80211_IBSS_DEBUG */
-	ieee80211_sta_tx(sdata, skb, 0);
+	ieee80211_tx_skb(sdata, skb, 0);
 }
 
 static void ieee80211_rx_mgmt_action(struct ieee80211_sub_if_data *sdata,
@@ -2984,53 +1791,16 @@ static void ieee80211_rx_mgmt_action(struct ieee80211_sub_if_data *sdata,
 				     size_t len,
 				     struct ieee80211_rx_status *rx_status)
 {
-	struct ieee80211_local *local = sdata->local;
-
-	if (len < IEEE80211_MIN_ACTION_SIZE)
+	/* currently we only handle mesh interface action frames here */
+	if (!ieee80211_vif_is_mesh(&sdata->vif))
 		return;
 
 	switch (mgmt->u.action.category) {
-	case WLAN_CATEGORY_SPECTRUM_MGMT:
-		if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ)
-			break;
-		switch (mgmt->u.action.u.chan_switch.action_code) {
-		case WLAN_ACTION_SPCT_MSR_REQ:
-			if (len < (IEEE80211_MIN_ACTION_SIZE +
-				   sizeof(mgmt->u.action.u.measurement)))
-				break;
-			ieee80211_sta_process_measurement_req(sdata, mgmt, len);
-			break;
-		}
-		break;
-	case WLAN_CATEGORY_BACK:
-		switch (mgmt->u.action.u.addba_req.action_code) {
-		case WLAN_ACTION_ADDBA_REQ:
-			if (len < (IEEE80211_MIN_ACTION_SIZE +
-				   sizeof(mgmt->u.action.u.addba_req)))
-				break;
-			ieee80211_sta_process_addba_request(local, mgmt, len);
-			break;
-		case WLAN_ACTION_ADDBA_RESP:
-			if (len < (IEEE80211_MIN_ACTION_SIZE +
-				   sizeof(mgmt->u.action.u.addba_resp)))
-				break;
-			ieee80211_sta_process_addba_resp(local, mgmt, len);
-			break;
-		case WLAN_ACTION_DELBA:
-			if (len < (IEEE80211_MIN_ACTION_SIZE +
-				   sizeof(mgmt->u.action.u.delba)))
-				break;
-			ieee80211_sta_process_delba(sdata, mgmt, len);
-			break;
-		}
-		break;
 	case PLINK_CATEGORY:
-		if (ieee80211_vif_is_mesh(&sdata->vif))
-			mesh_rx_plink_frame(sdata, mgmt, len, rx_status);
+		mesh_rx_plink_frame(sdata, mgmt, len, rx_status);
 		break;
 	case MESH_PATH_SEL_CATEGORY:
-		if (ieee80211_vif_is_mesh(&sdata->vif))
-			mesh_rx_path_sel_frame(sdata, mgmt, len);
+		mesh_rx_path_sel_frame(sdata, mgmt, len);
 		break;
 	}
 }
@@ -3120,41 +1890,6 @@ static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 }
 
 
-ieee80211_rx_result
-ieee80211_sta_rx_scan(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
-		      struct ieee80211_rx_status *rx_status)
-{
-	struct ieee80211_mgmt *mgmt;
-	__le16 fc;
-
-	if (skb->len < 2)
-		return RX_DROP_UNUSABLE;
-
-	mgmt = (struct ieee80211_mgmt *) skb->data;
-	fc = mgmt->frame_control;
-
-	if (ieee80211_is_ctl(fc))
-		return RX_CONTINUE;
-
-	if (skb->len < 24)
-		return RX_DROP_MONITOR;
-
-	if (ieee80211_is_probe_resp(fc)) {
-		ieee80211_rx_mgmt_probe_resp(sdata, mgmt, skb->len, rx_status);
-		dev_kfree_skb(skb);
-		return RX_QUEUED;
-	}
-
-	if (ieee80211_is_beacon(fc)) {
-		ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len, rx_status);
-		dev_kfree_skb(skb);
-		return RX_QUEUED;
-	}
-
-	return RX_CONTINUE;
-}
-
-
 static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_local *local = sdata->local;
@@ -3230,123 +1965,34 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata,
 
 	free_plinks = mesh_plink_availables(sdata);
 	if (free_plinks != sdata->u.sta.accepting_plinks)
-		ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
-
-	mod_timer(&ifsta->timer, jiffies +
-			IEEE80211_MESH_HOUSEKEEPING_INTERVAL);
-}
-
-
-void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_if_sta *ifsta;
-	ifsta = &sdata->u.sta;
-	ifsta->state = IEEE80211_STA_MLME_MESH_UP;
-	ieee80211_sta_timer((unsigned long)sdata);
-	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
-}
-#endif
-
-
-void ieee80211_sta_timer(unsigned long data)
-{
-	struct ieee80211_sub_if_data *sdata =
-		(struct ieee80211_sub_if_data *) data;
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-	struct ieee80211_local *local = sdata->local;
-
-	set_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
-	queue_work(local->hw.workqueue, &ifsta->work);
-}
-
-void ieee80211_sta_work(struct work_struct *work)
-{
-	struct ieee80211_sub_if_data *sdata =
-		container_of(work, struct ieee80211_sub_if_data, u.sta.work);
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_sta *ifsta;
-	struct sk_buff *skb;
-
-	if (!netif_running(sdata->dev))
-		return;
-
-	if (local->sta_sw_scanning || local->sta_hw_scanning)
-		return;
-
-	if (WARN_ON(sdata->vif.type != IEEE80211_IF_TYPE_STA &&
-		    sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
-		    sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT))
-		return;
-	ifsta = &sdata->u.sta;
-
-	while ((skb = skb_dequeue(&ifsta->skb_queue)))
-		ieee80211_sta_rx_queued_mgmt(sdata, skb);
-
-#ifdef CONFIG_MAC80211_MESH
-	if (ifsta->preq_queue_len &&
-	    time_after(jiffies,
-		       ifsta->last_preq + msecs_to_jiffies(ifsta->mshcfg.dot11MeshHWMPpreqMinInterval)))
-		mesh_path_start_discovery(sdata);
-#endif
-
-	if (ifsta->state != IEEE80211_STA_MLME_DIRECT_PROBE &&
-	    ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE &&
-	    ifsta->state != IEEE80211_STA_MLME_ASSOCIATE &&
-	    test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
-		if (ifsta->scan_ssid_len)
-			ieee80211_sta_start_scan(sdata, ifsta->scan_ssid, ifsta->scan_ssid_len);
-		else
-			ieee80211_sta_start_scan(sdata, NULL, 0);
-		return;
-	}
-
-	if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) {
-		if (ieee80211_sta_config_auth(sdata, ifsta))
-			return;
-		clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
-	} else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request))
-		return;
-
-	switch (ifsta->state) {
-	case IEEE80211_STA_MLME_DISABLED:
-		break;
-	case IEEE80211_STA_MLME_DIRECT_PROBE:
-		ieee80211_direct_probe(sdata, ifsta);
-		break;
-	case IEEE80211_STA_MLME_AUTHENTICATE:
-		ieee80211_authenticate(sdata, ifsta);
-		break;
-	case IEEE80211_STA_MLME_ASSOCIATE:
-		ieee80211_associate(sdata, ifsta);
-		break;
-	case IEEE80211_STA_MLME_ASSOCIATED:
-		ieee80211_associated(sdata, ifsta);
-		break;
-	case IEEE80211_STA_MLME_IBSS_SEARCH:
-		ieee80211_sta_find_ibss(sdata, ifsta);
-		break;
-	case IEEE80211_STA_MLME_IBSS_JOINED:
-		ieee80211_sta_merge_ibss(sdata, ifsta);
-		break;
-#ifdef CONFIG_MAC80211_MESH
-	case IEEE80211_STA_MLME_MESH_UP:
-		ieee80211_mesh_housekeeping(sdata, ifsta);
-		break;
-#endif
-	default:
-		WARN_ON(1);
-		break;
-	}
+		ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
 
-	if (ieee80211_privacy_mismatch(sdata, ifsta)) {
-		printk(KERN_DEBUG "%s: privacy configuration mismatch and "
-		       "mixed-cell disabled - disassociate\n", sdata->dev->name);
+	mod_timer(&ifsta->timer, jiffies +
+			IEEE80211_MESH_HOUSEKEEPING_INTERVAL);
+}
 
-		ieee80211_send_disassoc(sdata, ifsta, WLAN_REASON_UNSPECIFIED);
-		ieee80211_set_disassoc(sdata, ifsta, 0);
-	}
+
+void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_sta *ifsta;
+	ifsta = &sdata->u.sta;
+	ifsta->state = IEEE80211_STA_MLME_MESH_UP;
+	ieee80211_sta_timer((unsigned long)sdata);
+	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
 }
+#endif
+
+
+void ieee80211_sta_timer(unsigned long data)
+{
+	struct ieee80211_sub_if_data *sdata =
+		(struct ieee80211_sub_if_data *) data;
+	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_local *local = sdata->local;
 
+	set_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
+	queue_work(local->hw.workqueue, &ifsta->work);
+}
 
 static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata,
 				     struct ieee80211_if_sta *ifsta)
@@ -3375,6 +2021,7 @@ static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata,
 	ifsta->direct_probe_tries = 0;
 	ifsta->auth_tries = 0;
 	ifsta->assoc_tries = 0;
+	netif_tx_stop_all_queues(sdata->dev);
 	netif_carrier_off(sdata->dev);
 }
 
@@ -3388,9 +2035,14 @@ void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
 		return;
 
 	if ((ifsta->flags & (IEEE80211_STA_BSSID_SET |
-				IEEE80211_STA_AUTO_BSSID_SEL)) &&
+			     IEEE80211_STA_AUTO_BSSID_SEL)) &&
 	    (ifsta->flags & (IEEE80211_STA_SSID_SET |
-				IEEE80211_STA_AUTO_SSID_SEL))) {
+			     IEEE80211_STA_AUTO_SSID_SEL))) {
+
+		if (ifsta->state == IEEE80211_STA_MLME_ASSOCIATED)
+			ieee80211_set_disassoc(sdata, ifsta, true, true,
+					       WLAN_REASON_DEAUTH_LEAVING);
+
 		set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
 		queue_work(local->hw.workqueue, &ifsta->work);
 	}
@@ -3426,85 +2078,6 @@ static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta,
 	return 0;
 }
 
-static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_sta_bss *bss, *selected = NULL;
-	int top_rssi = 0, freq;
-
-	spin_lock_bh(&local->sta_bss_lock);
-	freq = local->oper_channel->center_freq;
-	list_for_each_entry(bss, &local->sta_bss_list, list) {
-		if (!(bss->capability & WLAN_CAPABILITY_ESS))
-			continue;
-
-		if ((ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
-			IEEE80211_STA_AUTO_BSSID_SEL |
-			IEEE80211_STA_AUTO_CHANNEL_SEL)) &&
-		    (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^
-		     !!sdata->default_key))
-			continue;
-
-		if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) &&
-		    bss->freq != freq)
-			continue;
-
-		if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) &&
-		    memcmp(bss->bssid, ifsta->bssid, ETH_ALEN))
-			continue;
-
-		if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) &&
-		    !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len))
-			continue;
-
-		if (!selected || top_rssi < bss->signal) {
-			selected = bss;
-			top_rssi = bss->signal;
-		}
-	}
-	if (selected)
-		atomic_inc(&selected->users);
-	spin_unlock_bh(&local->sta_bss_lock);
-
-	if (selected) {
-		ieee80211_set_freq(sdata, selected->freq);
-		if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
-			ieee80211_sta_set_ssid(sdata, selected->ssid,
-					       selected->ssid_len);
-		ieee80211_sta_set_bssid(sdata, selected->bssid);
-		ieee80211_sta_def_wmm_params(sdata, selected, 0);
-
-		/* Send out direct probe if no probe resp was received or
-		 * the one we have is outdated
-		 */
-		if (!selected->last_probe_resp ||
-		    time_after(jiffies, selected->last_probe_resp
-					+ IEEE80211_SCAN_RESULT_EXPIRE))
-			ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE;
-		else
-			ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
-
-		ieee80211_rx_bss_put(local, selected);
-		ieee80211_sta_reset_auth(sdata, ifsta);
-		return 0;
-	} else {
-		if (ifsta->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
-			ifsta->assoc_scan_tries++;
-			if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
-				ieee80211_sta_start_scan(sdata, NULL, 0);
-			else
-				ieee80211_sta_start_scan(sdata, ifsta->ssid,
-							 ifsta->ssid_len);
-			ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
-			set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
-		} else
-			ifsta->state = IEEE80211_STA_MLME_DISABLED;
-	}
-	return -1;
-}
-
-
 static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata,
 				     struct ieee80211_if_sta *ifsta)
 {
@@ -3533,7 +2106,7 @@ static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata,
 	printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %s\n",
 	       sdata->dev->name, print_mac(mac, bssid));
 
-	bss = ieee80211_rx_bss_add(sdata, bssid,
+	bss = ieee80211_rx_bss_add(local, bssid,
 				   local->hw.conf.channel->center_freq,
 				   sdata->u.sta.ssid, sdata->u.sta.ssid_len);
 	if (!bss)
@@ -3701,602 +2274,64 @@ int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size
 			res = ieee80211_if_config(sdata, IEEE80211_IFCC_SSID);
 		if (res) {
 			printk(KERN_DEBUG "%s: Failed to config new SSID to "
-			       "the low-level driver\n", sdata->dev->name);
-			return res;
-		}
-	}
-
-	if (len)
-		ifsta->flags |= IEEE80211_STA_SSID_SET;
-	else
-		ifsta->flags &= ~IEEE80211_STA_SSID_SET;
-
-	if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
-	    !(ifsta->flags & IEEE80211_STA_BSSID_SET)) {
-		ifsta->ibss_join_req = jiffies;
-		ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH;
-		return ieee80211_sta_find_ibss(sdata, ifsta);
-	}
-
-	return 0;
-}
-
-
-int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len)
-{
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-	memcpy(ssid, ifsta->ssid, ifsta->ssid_len);
-	*len = ifsta->ssid_len;
-	return 0;
-}
-
-
-int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
-{
-	struct ieee80211_if_sta *ifsta;
-	int res;
-
-	ifsta = &sdata->u.sta;
-
-	if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) {
-		memcpy(ifsta->bssid, bssid, ETH_ALEN);
-		res = 0;
-		/*
-		 * Hack! See also ieee80211_sta_set_ssid.
-		 */
-		if (netif_running(sdata->dev))
-			res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
-		if (res) {
-			printk(KERN_DEBUG "%s: Failed to config new BSSID to "
-			       "the low-level driver\n", sdata->dev->name);
-			return res;
-		}
-	}
-
-	if (is_valid_ether_addr(bssid))
-		ifsta->flags |= IEEE80211_STA_BSSID_SET;
-	else
-		ifsta->flags &= ~IEEE80211_STA_BSSID_SET;
-
-	return 0;
-}
-
-
-static void ieee80211_send_nullfunc(struct ieee80211_local *local,
-				    struct ieee80211_sub_if_data *sdata,
-				    int powersave)
-{
-	struct sk_buff *skb;
-	struct ieee80211_hdr *nullfunc;
-	__le16 fc;
-
-	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);
-		return;
-	}
-	skb_reserve(skb, local->hw.extra_tx_headroom);
-
-	nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
-	memset(nullfunc, 0, 24);
-	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
-			 IEEE80211_FCTL_TODS);
-	if (powersave)
-		fc |= cpu_to_le16(IEEE80211_FCTL_PM);
-	nullfunc->frame_control = fc;
-	memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN);
-	memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN);
-
-	ieee80211_sta_tx(sdata, skb, 0);
-}
-
-
-static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
-{
-	if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
-	    ieee80211_vif_is_mesh(&sdata->vif))
-		ieee80211_sta_timer((unsigned long)sdata);
-}
-
-void ieee80211_scan_completed(struct ieee80211_hw *hw)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct net_device *dev = local->scan_dev;
-	struct ieee80211_sub_if_data *sdata;
-	union iwreq_data wrqu;
-
-	local->last_scan_completed = jiffies;
-	memset(&wrqu, 0, sizeof(wrqu));
-	wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
-
-	if (local->sta_hw_scanning) {
-		local->sta_hw_scanning = 0;
-		if (ieee80211_hw_config(local))
-			printk(KERN_DEBUG "%s: failed to restore operational "
-			       "channel after scan\n", dev->name);
-		/* Restart STA timer for HW scan case */
-		rcu_read_lock();
-		list_for_each_entry_rcu(sdata, &local->interfaces, list)
-			ieee80211_restart_sta_timer(sdata);
-		rcu_read_unlock();
-
-		goto done;
-	}
-
-	local->sta_sw_scanning = 0;
-	if (ieee80211_hw_config(local))
-		printk(KERN_DEBUG "%s: failed to restore operational "
-		       "channel after scan\n", dev->name);
-
-
-	netif_tx_lock_bh(local->mdev);
-	netif_addr_lock(local->mdev);
-	local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC;
-	local->ops->configure_filter(local_to_hw(local),
-				     FIF_BCN_PRBRESP_PROMISC,
-				     &local->filter_flags,
-				     local->mdev->mc_count,
-				     local->mdev->mc_list);
-
-	netif_addr_unlock(local->mdev);
-	netif_tx_unlock_bh(local->mdev);
-
-	rcu_read_lock();
-	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-		/* Tell AP we're back */
-		if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
-		    sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
-			ieee80211_send_nullfunc(local, sdata, 0);
-
-		ieee80211_restart_sta_timer(sdata);
-
-		netif_wake_queue(sdata->dev);
-	}
-	rcu_read_unlock();
-
-done:
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
-		struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-		if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
-		    (!(ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED) &&
-		    !ieee80211_sta_active_ibss(sdata)))
-			ieee80211_sta_find_ibss(sdata, ifsta);
-	}
-}
-EXPORT_SYMBOL(ieee80211_scan_completed);
-
-void ieee80211_sta_scan_work(struct work_struct *work)
-{
-	struct ieee80211_local *local =
-		container_of(work, struct ieee80211_local, scan_work.work);
-	struct net_device *dev = local->scan_dev;
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct ieee80211_supported_band *sband;
-	struct ieee80211_channel *chan;
-	int skip;
-	unsigned long next_delay = 0;
-
-	if (!local->sta_sw_scanning)
-		return;
-
-	switch (local->scan_state) {
-	case SCAN_SET_CHANNEL:
-		/*
-		 * Get current scan band. scan_band may be IEEE80211_NUM_BANDS
-		 * after we successfully scanned the last channel of the last
-		 * band (and the last band is supported by the hw)
-		 */
-		if (local->scan_band < IEEE80211_NUM_BANDS)
-			sband = local->hw.wiphy->bands[local->scan_band];
-		else
-			sband = NULL;
-
-		/*
-		 * If we are at an unsupported band and have more bands
-		 * left to scan, advance to the next supported one.
-		 */
-		while (!sband && local->scan_band < IEEE80211_NUM_BANDS - 1) {
-			local->scan_band++;
-			sband = local->hw.wiphy->bands[local->scan_band];
-			local->scan_channel_idx = 0;
-		}
-
-		/* if no more bands/channels left, complete scan */
-		if (!sband || local->scan_channel_idx >= sband->n_channels) {
-			ieee80211_scan_completed(local_to_hw(local));
-			return;
-		}
-		skip = 0;
-		chan = &sband->channels[local->scan_channel_idx];
-
-		if (chan->flags & IEEE80211_CHAN_DISABLED ||
-		    (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
-		     chan->flags & IEEE80211_CHAN_NO_IBSS))
-			skip = 1;
-
-		if (!skip) {
-			local->scan_channel = chan;
-			if (ieee80211_hw_config(local)) {
-				printk(KERN_DEBUG "%s: failed to set freq to "
-				       "%d MHz for scan\n", dev->name,
-				       chan->center_freq);
-				skip = 1;
-			}
-		}
-
-		/* advance state machine to next channel/band */
-		local->scan_channel_idx++;
-		if (local->scan_channel_idx >= sband->n_channels) {
-			/*
-			 * scan_band may end up == IEEE80211_NUM_BANDS, but
-			 * we'll catch that case above and complete the scan
-			 * if that is the case.
-			 */
-			local->scan_band++;
-			local->scan_channel_idx = 0;
-		}
-
-		if (skip)
-			break;
-
-		next_delay = IEEE80211_PROBE_DELAY +
-			     usecs_to_jiffies(local->hw.channel_change_time);
-		local->scan_state = SCAN_SEND_PROBE;
-		break;
-	case SCAN_SEND_PROBE:
-		next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
-		local->scan_state = SCAN_SET_CHANNEL;
-
-		if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN)
-			break;
-		ieee80211_send_probe_req(sdata, NULL, local->scan_ssid,
-					 local->scan_ssid_len);
-		next_delay = IEEE80211_CHANNEL_TIME;
-		break;
-	}
-
-	if (local->sta_sw_scanning)
-		queue_delayed_work(local->hw.workqueue, &local->scan_work,
-				   next_delay);
-}
-
-
-static int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *scan_sdata,
-				    u8 *ssid, size_t ssid_len)
-{
-	struct ieee80211_local *local = scan_sdata->local;
-	struct ieee80211_sub_if_data *sdata;
-
-	if (ssid_len > IEEE80211_MAX_SSID_LEN)
-		return -EINVAL;
-
-	/* MLME-SCAN.request (page 118)  page 144 (11.1.3.1)
-	 * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
-	 * BSSID: MACAddress
-	 * SSID
-	 * ScanType: ACTIVE, PASSIVE
-	 * ProbeDelay: delay (in microseconds) to be used prior to transmitting
-	 *    a Probe frame during active scanning
-	 * ChannelList
-	 * MinChannelTime (>= ProbeDelay), in TU
-	 * MaxChannelTime: (>= MinChannelTime), in TU
-	 */
-
-	 /* MLME-SCAN.confirm
-	  * BSSDescriptionSet
-	  * ResultCode: SUCCESS, INVALID_PARAMETERS
-	 */
-
-	if (local->sta_sw_scanning || local->sta_hw_scanning) {
-		if (local->scan_dev == scan_sdata->dev)
-			return 0;
-		return -EBUSY;
-	}
-
-	if (local->ops->hw_scan) {
-		int rc = local->ops->hw_scan(local_to_hw(local),
-					     ssid, ssid_len);
-		if (!rc) {
-			local->sta_hw_scanning = 1;
-			local->scan_dev = scan_sdata->dev;
+			       "the low-level driver\n", sdata->dev->name);
+			return res;
 		}
-		return rc;
 	}
 
-	local->sta_sw_scanning = 1;
+	if (len)
+		ifsta->flags |= IEEE80211_STA_SSID_SET;
+	else
+		ifsta->flags &= ~IEEE80211_STA_SSID_SET;
 
-	rcu_read_lock();
-	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-		netif_stop_queue(sdata->dev);
-		if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
-		    (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED))
-			ieee80211_send_nullfunc(local, sdata, 1);
+	if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
+	    !(ifsta->flags & IEEE80211_STA_BSSID_SET)) {
+		ifsta->ibss_join_req = jiffies;
+		ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH;
+		return ieee80211_sta_find_ibss(sdata, ifsta);
 	}
-	rcu_read_unlock();
-
-	if (ssid) {
-		local->scan_ssid_len = ssid_len;
-		memcpy(local->scan_ssid, ssid, ssid_len);
-	} else
-		local->scan_ssid_len = 0;
-	local->scan_state = SCAN_SET_CHANNEL;
-	local->scan_channel_idx = 0;
-	local->scan_band = IEEE80211_BAND_2GHZ;
-	local->scan_dev = scan_sdata->dev;
-
-	netif_addr_lock_bh(local->mdev);
-	local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
-	local->ops->configure_filter(local_to_hw(local),
-				     FIF_BCN_PRBRESP_PROMISC,
-				     &local->filter_flags,
-				     local->mdev->mc_count,
-				     local->mdev->mc_list);
-	netif_addr_unlock_bh(local->mdev);
-
-	/* TODO: start scan as soon as all nullfunc frames are ACKed */
-	queue_delayed_work(local->hw.workqueue, &local->scan_work,
-			   IEEE80211_CHANNEL_TIME);
 
 	return 0;
 }
 
 
-int ieee80211_sta_req_scan(struct ieee80211_sub_if_data *sdata, u8 *ssid, size_t ssid_len)
+int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len)
 {
 	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-	struct ieee80211_local *local = sdata->local;
-
-	if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
-		return ieee80211_sta_start_scan(sdata, ssid, ssid_len);
-
-	if (local->sta_sw_scanning || local->sta_hw_scanning) {
-		if (local->scan_dev == sdata->dev)
-			return 0;
-		return -EBUSY;
-	}
-
-	ifsta->scan_ssid_len = ssid_len;
-	if (ssid_len)
-		memcpy(ifsta->scan_ssid, ssid, ssid_len);
-	set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
-	queue_work(local->hw.workqueue, &ifsta->work);
+	memcpy(ssid, ifsta->ssid, ifsta->ssid_len);
+	*len = ifsta->ssid_len;
 	return 0;
 }
 
 
-static void ieee80211_sta_add_scan_ies(struct iw_request_info *info,
-				       struct ieee80211_sta_bss *bss,
-				       char **current_ev, char *end_buf)
-{
-	u8 *pos, *end, *next;
-	struct iw_event iwe;
-
-	if (bss == NULL || bss->ies == NULL)
-		return;
-
-	/*
-	 * If needed, fragment the IEs buffer (at IE boundaries) into short
-	 * enough fragments to fit into IW_GENERIC_IE_MAX octet messages.
-	 */
-	pos = bss->ies;
-	end = pos + bss->ies_len;
-
-	while (end - pos > IW_GENERIC_IE_MAX) {
-		next = pos + 2 + pos[1];
-		while (next + 2 + next[1] - pos < IW_GENERIC_IE_MAX)
-			next = next + 2 + next[1];
-
-		memset(&iwe, 0, sizeof(iwe));
-		iwe.cmd = IWEVGENIE;
-		iwe.u.data.length = next - pos;
-		*current_ev = iwe_stream_add_point(info, *current_ev,
-						   end_buf, &iwe, pos);
-
-		pos = next;
-	}
-
-	if (end > pos) {
-		memset(&iwe, 0, sizeof(iwe));
-		iwe.cmd = IWEVGENIE;
-		iwe.u.data.length = end - pos;
-		*current_ev = iwe_stream_add_point(info, *current_ev,
-						   end_buf, &iwe, pos);
-	}
-}
-
-
-static char *
-ieee80211_sta_scan_result(struct ieee80211_local *local,
-			  struct iw_request_info *info,
-			  struct ieee80211_sta_bss *bss,
-			  char *current_ev, char *end_buf)
+int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
 {
-	struct iw_event iwe;
-
-	if (time_after(jiffies,
-		       bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE))
-		return current_ev;
-
-	memset(&iwe, 0, sizeof(iwe));
-	iwe.cmd = SIOCGIWAP;
-	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
-	memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
-	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
-					  IW_EV_ADDR_LEN);
-
-	memset(&iwe, 0, sizeof(iwe));
-	iwe.cmd = SIOCGIWESSID;
-	if (bss_mesh_cfg(bss)) {
-		iwe.u.data.length = bss_mesh_id_len(bss);
-		iwe.u.data.flags = 1;
-		current_ev = iwe_stream_add_point(info, current_ev, end_buf,
-						  &iwe, bss_mesh_id(bss));
-	} else {
-		iwe.u.data.length = bss->ssid_len;
-		iwe.u.data.flags = 1;
-		current_ev = iwe_stream_add_point(info, current_ev, end_buf,
-						  &iwe, bss->ssid);
-	}
-
-	if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)
-	    || bss_mesh_cfg(bss)) {
-		memset(&iwe, 0, sizeof(iwe));
-		iwe.cmd = SIOCGIWMODE;
-		if (bss_mesh_cfg(bss))
-			iwe.u.mode = IW_MODE_MESH;
-		else if (bss->capability & WLAN_CAPABILITY_ESS)
-			iwe.u.mode = IW_MODE_MASTER;
-		else
-			iwe.u.mode = IW_MODE_ADHOC;
-		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
-						  &iwe, IW_EV_UINT_LEN);
-	}
-
-	memset(&iwe, 0, sizeof(iwe));
-	iwe.cmd = SIOCGIWFREQ;
-	iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq);
-	iwe.u.freq.e = 0;
-	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
-					  IW_EV_FREQ_LEN);
-
-	memset(&iwe, 0, sizeof(iwe));
-	iwe.cmd = SIOCGIWFREQ;
-	iwe.u.freq.m = bss->freq;
-	iwe.u.freq.e = 6;
-	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
-					  IW_EV_FREQ_LEN);
-	memset(&iwe, 0, sizeof(iwe));
-	iwe.cmd = IWEVQUAL;
-	iwe.u.qual.qual = bss->qual;
-	iwe.u.qual.level = bss->signal;
-	iwe.u.qual.noise = bss->noise;
-	iwe.u.qual.updated = local->wstats_flags;
-	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
-					  IW_EV_QUAL_LEN);
-
-	memset(&iwe, 0, sizeof(iwe));
-	iwe.cmd = SIOCGIWENCODE;
-	if (bss->capability & WLAN_CAPABILITY_PRIVACY)
-		iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
-	else
-		iwe.u.data.flags = IW_ENCODE_DISABLED;
-	iwe.u.data.length = 0;
-	current_ev = iwe_stream_add_point(info, current_ev, end_buf,
-					  &iwe, "");
-
-	ieee80211_sta_add_scan_ies(info, bss, &current_ev, end_buf);
-
-	if (bss && bss->supp_rates_len > 0) {
-		/* display all supported rates in readable format */
-		char *p = current_ev + iwe_stream_lcp_len(info);
-		int i;
-
-		memset(&iwe, 0, sizeof(iwe));
-		iwe.cmd = SIOCGIWRATE;
-		/* Those two flags are ignored... */
-		iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
-
-		for (i = 0; i < bss->supp_rates_len; i++) {
-			iwe.u.bitrate.value = ((bss->supp_rates[i] &
-							0x7f) * 500000);
-			p = iwe_stream_add_value(info, current_ev, p,
-					end_buf, &iwe, IW_EV_PARAM_LEN);
-		}
-		current_ev = p;
-	}
+	struct ieee80211_if_sta *ifsta;
+	int res;
 
-	if (bss) {
-		char *buf;
-		buf = kmalloc(30, GFP_ATOMIC);
-		if (buf) {
-			memset(&iwe, 0, sizeof(iwe));
-			iwe.cmd = IWEVCUSTOM;
-			sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp));
-			iwe.u.data.length = strlen(buf);
-			current_ev = iwe_stream_add_point(info, current_ev,
-							  end_buf,
-							  &iwe, buf);
-			memset(&iwe, 0, sizeof(iwe));
-			iwe.cmd = IWEVCUSTOM;
-			sprintf(buf, " Last beacon: %dms ago",
-				jiffies_to_msecs(jiffies - bss->last_update));
-			iwe.u.data.length = strlen(buf);
-			current_ev = iwe_stream_add_point(info, current_ev,
-							  end_buf, &iwe, buf);
-			kfree(buf);
-		}
-	}
+	ifsta = &sdata->u.sta;
 
-	if (bss_mesh_cfg(bss)) {
-		char *buf;
-		u8 *cfg = bss_mesh_cfg(bss);
-		buf = kmalloc(50, GFP_ATOMIC);
-		if (buf) {
-			memset(&iwe, 0, sizeof(iwe));
-			iwe.cmd = IWEVCUSTOM;
-			sprintf(buf, "Mesh network (version %d)", cfg[0]);
-			iwe.u.data.length = strlen(buf);
-			current_ev = iwe_stream_add_point(info, current_ev,
-							  end_buf,
-							  &iwe, buf);
-			sprintf(buf, "Path Selection Protocol ID: "
-				"0x%02X%02X%02X%02X", cfg[1], cfg[2], cfg[3],
-							cfg[4]);
-			iwe.u.data.length = strlen(buf);
-			current_ev = iwe_stream_add_point(info, current_ev,
-							  end_buf,
-							  &iwe, buf);
-			sprintf(buf, "Path Selection Metric ID: "
-				"0x%02X%02X%02X%02X", cfg[5], cfg[6], cfg[7],
-							cfg[8]);
-			iwe.u.data.length = strlen(buf);
-			current_ev = iwe_stream_add_point(info, current_ev,
-							  end_buf,
-							  &iwe, buf);
-			sprintf(buf, "Congestion Control Mode ID: "
-				"0x%02X%02X%02X%02X", cfg[9], cfg[10],
-							cfg[11], cfg[12]);
-			iwe.u.data.length = strlen(buf);
-			current_ev = iwe_stream_add_point(info, current_ev,
-							  end_buf,
-							  &iwe, buf);
-			sprintf(buf, "Channel Precedence: "
-				"0x%02X%02X%02X%02X", cfg[13], cfg[14],
-							cfg[15], cfg[16]);
-			iwe.u.data.length = strlen(buf);
-			current_ev = iwe_stream_add_point(info, current_ev,
-							  end_buf,
-							  &iwe, buf);
-			kfree(buf);
+	if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) {
+		memcpy(ifsta->bssid, bssid, ETH_ALEN);
+		res = 0;
+		/*
+		 * Hack! See also ieee80211_sta_set_ssid.
+		 */
+		if (netif_running(sdata->dev))
+			res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
+		if (res) {
+			printk(KERN_DEBUG "%s: Failed to config new BSSID to "
+			       "the low-level driver\n", sdata->dev->name);
+			return res;
 		}
 	}
 
-	return current_ev;
-}
-
-
-int ieee80211_sta_scan_results(struct ieee80211_local *local,
-			       struct iw_request_info *info,
-			       char *buf, size_t len)
-{
-	char *current_ev = buf;
-	char *end_buf = buf + len;
-	struct ieee80211_sta_bss *bss;
+	if (is_valid_ether_addr(bssid))
+		ifsta->flags |= IEEE80211_STA_BSSID_SET;
+	else
+		ifsta->flags &= ~IEEE80211_STA_BSSID_SET;
 
-	spin_lock_bh(&local->sta_bss_lock);
-	list_for_each_entry(bss, &local->sta_bss_list, list) {
-		if (buf + len - current_ev <= IW_EV_ADDR_LEN) {
-			spin_unlock_bh(&local->sta_bss_lock);
-			return -E2BIG;
-		}
-		current_ev = ieee80211_sta_scan_result(local, info, bss,
-						       current_ev, end_buf);
-	}
-	spin_unlock_bh(&local->sta_bss_lock);
-	return current_ev - buf;
+	return 0;
 }
 
 
@@ -4367,6 +2402,85 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 }
 
 
+static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
+				     struct ieee80211_if_sta *ifsta)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_sta_bss *bss, *selected = NULL;
+	int top_rssi = 0, freq;
+
+	spin_lock_bh(&local->sta_bss_lock);
+	freq = local->oper_channel->center_freq;
+	list_for_each_entry(bss, &local->sta_bss_list, list) {
+		if (!(bss->capability & WLAN_CAPABILITY_ESS))
+			continue;
+
+		if ((ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
+			IEEE80211_STA_AUTO_BSSID_SEL |
+			IEEE80211_STA_AUTO_CHANNEL_SEL)) &&
+		    (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^
+		     !!sdata->default_key))
+			continue;
+
+		if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) &&
+		    bss->freq != freq)
+			continue;
+
+		if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) &&
+		    memcmp(bss->bssid, ifsta->bssid, ETH_ALEN))
+			continue;
+
+		if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) &&
+		    !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len))
+			continue;
+
+		if (!selected || top_rssi < bss->signal) {
+			selected = bss;
+			top_rssi = bss->signal;
+		}
+	}
+	if (selected)
+		atomic_inc(&selected->users);
+	spin_unlock_bh(&local->sta_bss_lock);
+
+	if (selected) {
+		ieee80211_set_freq(sdata, selected->freq);
+		if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
+			ieee80211_sta_set_ssid(sdata, selected->ssid,
+					       selected->ssid_len);
+		ieee80211_sta_set_bssid(sdata, selected->bssid);
+		ieee80211_sta_def_wmm_params(sdata, selected);
+
+		/* Send out direct probe if no probe resp was received or
+		 * the one we have is outdated
+		 */
+		if (!selected->last_probe_resp ||
+		    time_after(jiffies, selected->last_probe_resp
+					+ IEEE80211_SCAN_RESULT_EXPIRE))
+			ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE;
+		else
+			ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
+
+		ieee80211_rx_bss_put(local, selected);
+		ieee80211_sta_reset_auth(sdata, ifsta);
+		return 0;
+	} else {
+		if (ifsta->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
+			ifsta->assoc_scan_tries++;
+			if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
+				ieee80211_sta_start_scan(sdata, NULL, 0);
+			else
+				ieee80211_sta_start_scan(sdata, ifsta->ssid,
+							 ifsta->ssid_len);
+			ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
+			set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
+		} else
+			ifsta->state = IEEE80211_STA_MLME_DISABLED;
+	}
+	return -1;
+}
+
+
 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason)
 {
 	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
@@ -4378,8 +2492,7 @@ int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason
 	    sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
 		return -EINVAL;
 
-	ieee80211_send_deauth(sdata, ifsta, reason);
-	ieee80211_set_disassoc(sdata, ifsta, 1);
+	ieee80211_set_disassoc(sdata, ifsta, true, true, reason);
 	return 0;
 }
 
@@ -4397,8 +2510,7 @@ int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason)
 	if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED))
 		return -1;
 
-	ieee80211_send_disassoc(sdata, ifsta, reason);
-	ieee80211_set_disassoc(sdata, ifsta, 0);
+	ieee80211_set_disassoc(sdata, ifsta, false, true, reason);
 	return 0;
 }
 
@@ -4422,3 +2534,102 @@ void ieee80211_notify_mac(struct ieee80211_hw *hw,
 	}
 }
 EXPORT_SYMBOL(ieee80211_notify_mac);
+
+void ieee80211_sta_work(struct work_struct *work)
+{
+	struct ieee80211_sub_if_data *sdata =
+		container_of(work, struct ieee80211_sub_if_data, u.sta.work);
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_if_sta *ifsta;
+	struct sk_buff *skb;
+
+	if (!netif_running(sdata->dev))
+		return;
+
+	if (local->sta_sw_scanning || local->sta_hw_scanning)
+		return;
+
+	if (WARN_ON(sdata->vif.type != IEEE80211_IF_TYPE_STA &&
+		    sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
+		    sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT))
+		return;
+	ifsta = &sdata->u.sta;
+
+	while ((skb = skb_dequeue(&ifsta->skb_queue)))
+		ieee80211_sta_rx_queued_mgmt(sdata, skb);
+
+#ifdef CONFIG_MAC80211_MESH
+	if (ifsta->preq_queue_len &&
+	    time_after(jiffies,
+		       ifsta->last_preq + msecs_to_jiffies(ifsta->mshcfg.dot11MeshHWMPpreqMinInterval)))
+		mesh_path_start_discovery(sdata);
+#endif
+
+	if (ifsta->state != IEEE80211_STA_MLME_DIRECT_PROBE &&
+	    ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE &&
+	    ifsta->state != IEEE80211_STA_MLME_ASSOCIATE &&
+	    test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
+		ieee80211_sta_start_scan(sdata, ifsta->scan_ssid, ifsta->scan_ssid_len);
+		return;
+	}
+
+	if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) {
+		if (ieee80211_sta_config_auth(sdata, ifsta))
+			return;
+		clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
+	} else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request))
+		return;
+
+	switch (ifsta->state) {
+	case IEEE80211_STA_MLME_DISABLED:
+		break;
+	case IEEE80211_STA_MLME_DIRECT_PROBE:
+		ieee80211_direct_probe(sdata, ifsta);
+		break;
+	case IEEE80211_STA_MLME_AUTHENTICATE:
+		ieee80211_authenticate(sdata, ifsta);
+		break;
+	case IEEE80211_STA_MLME_ASSOCIATE:
+		ieee80211_associate(sdata, ifsta);
+		break;
+	case IEEE80211_STA_MLME_ASSOCIATED:
+		ieee80211_associated(sdata, ifsta);
+		break;
+	case IEEE80211_STA_MLME_IBSS_SEARCH:
+		ieee80211_sta_find_ibss(sdata, ifsta);
+		break;
+	case IEEE80211_STA_MLME_IBSS_JOINED:
+		ieee80211_sta_merge_ibss(sdata, ifsta);
+		break;
+#ifdef CONFIG_MAC80211_MESH
+	case IEEE80211_STA_MLME_MESH_UP:
+		ieee80211_mesh_housekeeping(sdata, ifsta);
+		break;
+#endif
+	default:
+		WARN_ON(1);
+		break;
+	}
+
+	if (ieee80211_privacy_mismatch(sdata, ifsta)) {
+		printk(KERN_DEBUG "%s: privacy configuration mismatch and "
+		       "mixed-cell disabled - disassociate\n", sdata->dev->name);
+
+		ieee80211_set_disassoc(sdata, ifsta, false, true,
+					WLAN_REASON_UNSPECIFIED);
+	}
+}
+
+void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
+{
+	struct ieee80211_sub_if_data *sdata = local->scan_sdata;
+	struct ieee80211_if_sta *ifsta;
+
+	if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
+		ifsta = &sdata->u.sta;
+		if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
+		    (!(ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED) &&
+		    !ieee80211_sta_active_ibss(sdata)))
+			ieee80211_sta_find_ibss(sdata, ifsta);
+	}
+}

net/mac80211/rx.c

@@ -1510,23 +1510,96 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx)
 	return RX_CONTINUE;
 }
 
+static ieee80211_rx_result debug_noinline
+ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
+{
+	struct ieee80211_local *local = rx->local;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data;
+	int len = rx->skb->len;
+
+	if (!ieee80211_is_action(mgmt->frame_control))
+		return RX_CONTINUE;
+
+	if (!rx->sta)
+		return RX_DROP_MONITOR;
+
+	if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+		return RX_DROP_MONITOR;
+
+	/* all categories we currently handle have action_code */
+	if (len < IEEE80211_MIN_ACTION_SIZE + 1)
+		return RX_DROP_MONITOR;
+
+	/*
+	 * FIXME: revisit this, I'm sure we should handle most
+	 *	  of these frames in other modes as well!
+	 */
+	if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
+	    sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
+		return RX_DROP_MONITOR;
+
+	switch (mgmt->u.action.category) {
+	case WLAN_CATEGORY_BACK:
+		switch (mgmt->u.action.u.addba_req.action_code) {
+		case WLAN_ACTION_ADDBA_REQ:
+			if (len < (IEEE80211_MIN_ACTION_SIZE +
+				   sizeof(mgmt->u.action.u.addba_req)))
+				return RX_DROP_MONITOR;
+			ieee80211_process_addba_request(local, rx->sta, mgmt, len);
+			break;
+		case WLAN_ACTION_ADDBA_RESP:
+			if (len < (IEEE80211_MIN_ACTION_SIZE +
+				   sizeof(mgmt->u.action.u.addba_resp)))
+				return RX_DROP_MONITOR;
+			ieee80211_process_addba_resp(local, rx->sta, mgmt, len);
+			break;
+		case WLAN_ACTION_DELBA:
+			if (len < (IEEE80211_MIN_ACTION_SIZE +
+				   sizeof(mgmt->u.action.u.delba)))
+				return RX_DROP_MONITOR;
+			ieee80211_process_delba(sdata, rx->sta, mgmt, len);
+			break;
+		}
+		break;
+	case WLAN_CATEGORY_SPECTRUM_MGMT:
+		if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ)
+			return RX_DROP_MONITOR;
+		switch (mgmt->u.action.u.measurement.action_code) {
+		case WLAN_ACTION_SPCT_MSR_REQ:
+			if (len < (IEEE80211_MIN_ACTION_SIZE +
+				   sizeof(mgmt->u.action.u.measurement)))
+				return RX_DROP_MONITOR;
+			ieee80211_process_measurement_req(sdata, mgmt, len);
+			break;
+		}
+		break;
+	default:
+		return RX_CONTINUE;
+	}
+
+	rx->sta->rx_packets++;
+	dev_kfree_skb(rx->skb);
+	return RX_QUEUED;
+}
+
 static ieee80211_rx_result debug_noinline
 ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 
 	if (!(rx->flags & IEEE80211_RX_RA_MATCH))
 		return RX_DROP_MONITOR;
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
-	if ((sdata->vif.type == IEEE80211_IF_TYPE_STA ||
-	     sdata->vif.type == IEEE80211_IF_TYPE_IBSS ||
-	     sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) &&
-	    !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
-		ieee80211_sta_rx_mgmt(sdata, rx->skb, rx->status);
-	else
+	if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
+	    sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
+	    sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)
+		return RX_DROP_MONITOR;
+
+	if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
 		return RX_DROP_MONITOR;
 
+	ieee80211_sta_rx_mgmt(sdata, rx->skb, rx->status);
 	return RX_QUEUED;
 }
 
@@ -1689,6 +1762,7 @@ static void ieee80211_invoke_rx_handlers(struct ieee80211_sub_if_data *sdata,
 		CALL_RXH(ieee80211_rx_h_mesh_fwding);
 	CALL_RXH(ieee80211_rx_h_data)
 	CALL_RXH(ieee80211_rx_h_ctrl)
+	CALL_RXH(ieee80211_rx_h_action)
 	CALL_RXH(ieee80211_rx_h_mgmt)
 
 #undef CALL_RXH

net/mac80211/scan.c

@@ -0,0 +1,933 @@
+/*
+ * Scanning implementation
+ *
+ * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2004, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* TODO:
+ * order BSS list by RSSI(?) ("quality of AP")
+ * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
+ *    SSID)
+ */
+
+#include <linux/wireless.h>
+#include <linux/if_arp.h>
+#include <net/mac80211.h>
+#include <net/iw_handler.h>
+
+#include "ieee80211_i.h"
+#include "mesh.h"
+
+#define IEEE80211_PROBE_DELAY (HZ / 33)
+#define IEEE80211_CHANNEL_TIME (HZ / 33)
+#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5)
+
+void ieee80211_rx_bss_list_init(struct ieee80211_local *local)
+{
+	spin_lock_init(&local->sta_bss_lock);
+	INIT_LIST_HEAD(&local->sta_bss_list);
+}
+
+void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local)
+{
+	struct ieee80211_sta_bss *bss, *tmp;
+
+	list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list)
+		ieee80211_rx_bss_put(local, bss);
+}
+
+struct ieee80211_sta_bss *
+ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
+		     u8 *ssid, u8 ssid_len)
+{
+	struct ieee80211_sta_bss *bss;
+
+	spin_lock_bh(&local->sta_bss_lock);
+	bss = local->sta_bss_hash[STA_HASH(bssid)];
+	while (bss) {
+		if (!bss_mesh_cfg(bss) &&
+		    !memcmp(bss->bssid, bssid, ETH_ALEN) &&
+		    bss->freq == freq &&
+		    bss->ssid_len == ssid_len &&
+		    (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) {
+			atomic_inc(&bss->users);
+			break;
+		}
+		bss = bss->hnext;
+	}
+	spin_unlock_bh(&local->sta_bss_lock);
+	return bss;
+}
+
+/* Caller must hold local->sta_bss_lock */
+static void __ieee80211_rx_bss_hash_add(struct ieee80211_local *local,
+					struct ieee80211_sta_bss *bss)
+{
+	u8 hash_idx;
+
+	if (bss_mesh_cfg(bss))
+		hash_idx = mesh_id_hash(bss_mesh_id(bss),
+					bss_mesh_id_len(bss));
+	else
+		hash_idx = STA_HASH(bss->bssid);
+
+	bss->hnext = local->sta_bss_hash[hash_idx];
+	local->sta_bss_hash[hash_idx] = bss;
+}
+
+/* Caller must hold local->sta_bss_lock */
+static void __ieee80211_rx_bss_hash_del(struct ieee80211_local *local,
+					struct ieee80211_sta_bss *bss)
+{
+	struct ieee80211_sta_bss *b, *prev = NULL;
+	b = local->sta_bss_hash[STA_HASH(bss->bssid)];
+	while (b) {
+		if (b == bss) {
+			if (!prev)
+				local->sta_bss_hash[STA_HASH(bss->bssid)] =
+					bss->hnext;
+			else
+				prev->hnext = bss->hnext;
+			break;
+		}
+		prev = b;
+		b = b->hnext;
+	}
+}
+
+struct ieee80211_sta_bss *
+ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq,
+		     u8 *ssid, u8 ssid_len)
+{
+	struct ieee80211_sta_bss *bss;
+
+	bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
+	if (!bss)
+		return NULL;
+	atomic_set(&bss->users, 2);
+	memcpy(bss->bssid, bssid, ETH_ALEN);
+	bss->freq = freq;
+	if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) {
+		memcpy(bss->ssid, ssid, ssid_len);
+		bss->ssid_len = ssid_len;
+	}
+
+	spin_lock_bh(&local->sta_bss_lock);
+	/* TODO: order by RSSI? */
+	list_add_tail(&bss->list, &local->sta_bss_list);
+	__ieee80211_rx_bss_hash_add(local, bss);
+	spin_unlock_bh(&local->sta_bss_lock);
+	return bss;
+}
+
+#ifdef CONFIG_MAC80211_MESH
+static struct ieee80211_sta_bss *
+ieee80211_rx_mesh_bss_get(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len,
+			  u8 *mesh_cfg, int freq)
+{
+	struct ieee80211_sta_bss *bss;
+
+	spin_lock_bh(&local->sta_bss_lock);
+	bss = local->sta_bss_hash[mesh_id_hash(mesh_id, mesh_id_len)];
+	while (bss) {
+		if (bss_mesh_cfg(bss) &&
+		    !memcmp(bss_mesh_cfg(bss), mesh_cfg, MESH_CFG_CMP_LEN) &&
+		    bss->freq == freq &&
+		    mesh_id_len == bss->mesh_id_len &&
+		    (mesh_id_len == 0 || !memcmp(bss->mesh_id, mesh_id,
+						 mesh_id_len))) {
+			atomic_inc(&bss->users);
+			break;
+		}
+		bss = bss->hnext;
+	}
+	spin_unlock_bh(&local->sta_bss_lock);
+	return bss;
+}
+
+static struct ieee80211_sta_bss *
+ieee80211_rx_mesh_bss_add(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len,
+			  u8 *mesh_cfg, int mesh_config_len, int freq)
+{
+	struct ieee80211_sta_bss *bss;
+
+	if (mesh_config_len != MESH_CFG_LEN)
+		return NULL;
+
+	bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
+	if (!bss)
+		return NULL;
+
+	bss->mesh_cfg = kmalloc(MESH_CFG_CMP_LEN, GFP_ATOMIC);
+	if (!bss->mesh_cfg) {
+		kfree(bss);
+		return NULL;
+	}
+
+	if (mesh_id_len && mesh_id_len <= IEEE80211_MAX_MESH_ID_LEN) {
+		bss->mesh_id = kmalloc(mesh_id_len, GFP_ATOMIC);
+		if (!bss->mesh_id) {
+			kfree(bss->mesh_cfg);
+			kfree(bss);
+			return NULL;
+		}
+		memcpy(bss->mesh_id, mesh_id, mesh_id_len);
+	}
+
+	atomic_set(&bss->users, 2);
+	memcpy(bss->mesh_cfg, mesh_cfg, MESH_CFG_CMP_LEN);
+	bss->mesh_id_len = mesh_id_len;
+	bss->freq = freq;
+	spin_lock_bh(&local->sta_bss_lock);
+	/* TODO: order by RSSI? */
+	list_add_tail(&bss->list, &local->sta_bss_list);
+	__ieee80211_rx_bss_hash_add(local, bss);
+	spin_unlock_bh(&local->sta_bss_lock);
+	return bss;
+}
+#endif
+
+static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
+{
+	kfree(bss->ies);
+	kfree(bss_mesh_id(bss));
+	kfree(bss_mesh_cfg(bss));
+	kfree(bss);
+}
+
+void ieee80211_rx_bss_put(struct ieee80211_local *local,
+			  struct ieee80211_sta_bss *bss)
+{
+	local_bh_disable();
+	if (!atomic_dec_and_lock(&bss->users, &local->sta_bss_lock)) {
+		local_bh_enable();
+		return;
+	}
+
+	__ieee80211_rx_bss_hash_del(local, bss);
+	list_del(&bss->list);
+	spin_unlock_bh(&local->sta_bss_lock);
+	ieee80211_rx_bss_free(bss);
+}
+
+struct ieee80211_sta_bss *
+ieee80211_bss_info_update(struct ieee80211_local *local,
+			  struct ieee80211_rx_status *rx_status,
+			  struct ieee80211_mgmt *mgmt,
+			  size_t len,
+			  struct ieee802_11_elems *elems,
+			  int freq, bool beacon)
+{
+	struct ieee80211_sta_bss *bss;
+	int clen;
+
+#ifdef CONFIG_MAC80211_MESH
+	if (elems->mesh_config)
+		bss = ieee80211_rx_mesh_bss_get(local, elems->mesh_id,
+				elems->mesh_id_len, elems->mesh_config, freq);
+	else
+#endif
+		bss = ieee80211_rx_bss_get(local, mgmt->bssid, freq,
+					   elems->ssid, elems->ssid_len);
+	if (!bss) {
+#ifdef CONFIG_MAC80211_MESH
+		if (elems->mesh_config)
+			bss = ieee80211_rx_mesh_bss_add(local, elems->mesh_id,
+				elems->mesh_id_len, elems->mesh_config,
+				elems->mesh_config_len, freq);
+		else
+#endif
+			bss = ieee80211_rx_bss_add(local, mgmt->bssid, freq,
+						  elems->ssid, elems->ssid_len);
+		if (!bss)
+			return NULL;
+	} else {
+#if 0
+		/* TODO: order by RSSI? */
+		spin_lock_bh(&local->sta_bss_lock);
+		list_move_tail(&bss->list, &local->sta_bss_list);
+		spin_unlock_bh(&local->sta_bss_lock);
+#endif
+	}
+
+	/* save the ERP value so that it is available at association time */
+	if (elems->erp_info && elems->erp_info_len >= 1) {
+		bss->erp_value = elems->erp_info[0];
+		bss->has_erp_value = 1;
+	}
+
+	bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
+	bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
+
+	if (elems->tim) {
+		struct ieee80211_tim_ie *tim_ie =
+			(struct ieee80211_tim_ie *)elems->tim;
+		bss->dtim_period = tim_ie->dtim_period;
+	}
+
+	/* set default value for buggy APs */
+	if (!elems->tim || bss->dtim_period == 0)
+		bss->dtim_period = 1;
+
+	bss->supp_rates_len = 0;
+	if (elems->supp_rates) {
+		clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
+		if (clen > elems->supp_rates_len)
+			clen = elems->supp_rates_len;
+		memcpy(&bss->supp_rates[bss->supp_rates_len], elems->supp_rates,
+		       clen);
+		bss->supp_rates_len += clen;
+	}
+	if (elems->ext_supp_rates) {
+		clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
+		if (clen > elems->ext_supp_rates_len)
+			clen = elems->ext_supp_rates_len;
+		memcpy(&bss->supp_rates[bss->supp_rates_len],
+		       elems->ext_supp_rates, clen);
+		bss->supp_rates_len += clen;
+	}
+
+	bss->band = rx_status->band;
+
+	bss->timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
+	bss->last_update = jiffies;
+	bss->signal = rx_status->signal;
+	bss->noise = rx_status->noise;
+	bss->qual = rx_status->qual;
+	bss->wmm_used = elems->wmm_param || elems->wmm_info;
+
+	if (!beacon)
+		bss->last_probe_resp = jiffies;
+
+	/*
+	 * For probe responses, or if we don't have any information yet,
+	 * use the IEs from the beacon.
+	 */
+	if (!bss->ies || !beacon) {
+		if (bss->ies == NULL || bss->ies_len < elems->total_len) {
+			kfree(bss->ies);
+			bss->ies = kmalloc(elems->total_len, GFP_ATOMIC);
+		}
+		if (bss->ies) {
+			memcpy(bss->ies, elems->ie_start, elems->total_len);
+			bss->ies_len = elems->total_len;
+		} else
+			bss->ies_len = 0;
+	}
+
+	return bss;
+}
+
+ieee80211_rx_result
+ieee80211_sta_rx_scan(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+		      struct ieee80211_rx_status *rx_status)
+{
+	struct ieee80211_mgmt *mgmt;
+	struct ieee80211_sta_bss *bss;
+	u8 *elements;
+	struct ieee80211_channel *channel;
+	size_t baselen;
+	int freq;
+	__le16 fc;
+	bool presp, beacon = false;
+	struct ieee802_11_elems elems;
+
+	if (skb->len < 2)
+		return RX_DROP_UNUSABLE;
+
+	mgmt = (struct ieee80211_mgmt *) skb->data;
+	fc = mgmt->frame_control;
+
+	if (ieee80211_is_ctl(fc))
+		return RX_CONTINUE;
+
+	if (skb->len < 24)
+		return RX_DROP_MONITOR;
+
+	presp = ieee80211_is_probe_resp(fc);
+	if (presp) {
+		/* ignore ProbeResp to foreign address */
+		if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN))
+			return RX_DROP_MONITOR;
+
+		presp = true;
+		elements = mgmt->u.probe_resp.variable;
+		baselen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
+	} else {
+		beacon = ieee80211_is_beacon(fc);
+		baselen = offsetof(struct ieee80211_mgmt, u.beacon.variable);
+		elements = mgmt->u.beacon.variable;
+	}
+
+	if (!presp && !beacon)
+		return RX_CONTINUE;
+
+	if (baselen > skb->len)
+		return RX_DROP_MONITOR;
+
+	ieee802_11_parse_elems(elements, skb->len - baselen, &elems);
+
+	if (elems.ds_params && elems.ds_params_len == 1)
+		freq = ieee80211_channel_to_frequency(elems.ds_params[0]);
+	else
+		freq = rx_status->freq;
+
+	channel = ieee80211_get_channel(sdata->local->hw.wiphy, freq);
+
+	if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
+		return RX_DROP_MONITOR;
+
+	bss = ieee80211_bss_info_update(sdata->local, rx_status,
+					mgmt, skb->len, &elems,
+					freq, beacon);
+	ieee80211_rx_bss_put(sdata->local, bss);
+
+	dev_kfree_skb(skb);
+	return RX_QUEUED;
+}
+
+static void ieee80211_send_nullfunc(struct ieee80211_local *local,
+				    struct ieee80211_sub_if_data *sdata,
+				    int powersave)
+{
+	struct sk_buff *skb;
+	struct ieee80211_hdr *nullfunc;
+	__le16 fc;
+
+	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);
+		return;
+	}
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+
+	nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
+	memset(nullfunc, 0, 24);
+	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
+			 IEEE80211_FCTL_TODS);
+	if (powersave)
+		fc |= cpu_to_le16(IEEE80211_FCTL_PM);
+	nullfunc->frame_control = fc;
+	memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN);
+	memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN);
+
+	ieee80211_tx_skb(sdata, skb, 0);
+}
+
+static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
+{
+	if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+	    ieee80211_vif_is_mesh(&sdata->vif))
+		ieee80211_sta_timer((unsigned long)sdata);
+}
+
+void ieee80211_scan_completed(struct ieee80211_hw *hw)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct ieee80211_sub_if_data *sdata;
+	union iwreq_data wrqu;
+
+	local->last_scan_completed = jiffies;
+	memset(&wrqu, 0, sizeof(wrqu));
+	wireless_send_event(local->scan_sdata->dev, SIOCGIWSCAN, &wrqu, NULL);
+
+	if (local->sta_hw_scanning) {
+		local->sta_hw_scanning = 0;
+		if (ieee80211_hw_config(local))
+			printk(KERN_DEBUG "%s: failed to restore operational "
+			       "channel after scan\n", wiphy_name(local->hw.wiphy));
+		/* Restart STA timer for HW scan case */
+		rcu_read_lock();
+		list_for_each_entry_rcu(sdata, &local->interfaces, list)
+			ieee80211_restart_sta_timer(sdata);
+		rcu_read_unlock();
+
+		goto done;
+	}
+
+	local->sta_sw_scanning = 0;
+	if (ieee80211_hw_config(local))
+		printk(KERN_DEBUG "%s: failed to restore operational "
+		       "channel after scan\n", wiphy_name(local->hw.wiphy));
+
+
+	netif_tx_lock_bh(local->mdev);
+	netif_addr_lock(local->mdev);
+	local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC;
+	local->ops->configure_filter(local_to_hw(local),
+				     FIF_BCN_PRBRESP_PROMISC,
+				     &local->filter_flags,
+				     local->mdev->mc_count,
+				     local->mdev->mc_list);
+
+	netif_addr_unlock(local->mdev);
+	netif_tx_unlock_bh(local->mdev);
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+		/* Tell AP we're back */
+		if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
+			if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
+				ieee80211_send_nullfunc(local, sdata, 0);
+				netif_tx_wake_all_queues(sdata->dev);
+			}
+		} else
+			netif_tx_wake_all_queues(sdata->dev);
+
+		ieee80211_restart_sta_timer(sdata);
+	}
+	rcu_read_unlock();
+
+ done:
+	ieee80211_mlme_notify_scan_completed(local);
+}
+EXPORT_SYMBOL(ieee80211_scan_completed);
+
+
+void ieee80211_sta_scan_work(struct work_struct *work)
+{
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local, scan_work.work);
+	struct ieee80211_sub_if_data *sdata = local->scan_sdata;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_channel *chan;
+	int skip;
+	unsigned long next_delay = 0;
+
+	if (!local->sta_sw_scanning)
+		return;
+
+	switch (local->scan_state) {
+	case SCAN_SET_CHANNEL:
+		/*
+		 * Get current scan band. scan_band may be IEEE80211_NUM_BANDS
+		 * after we successfully scanned the last channel of the last
+		 * band (and the last band is supported by the hw)
+		 */
+		if (local->scan_band < IEEE80211_NUM_BANDS)
+			sband = local->hw.wiphy->bands[local->scan_band];
+		else
+			sband = NULL;
+
+		/*
+		 * If we are at an unsupported band and have more bands
+		 * left to scan, advance to the next supported one.
+		 */
+		while (!sband && local->scan_band < IEEE80211_NUM_BANDS - 1) {
+			local->scan_band++;
+			sband = local->hw.wiphy->bands[local->scan_band];
+			local->scan_channel_idx = 0;
+		}
+
+		/* if no more bands/channels left, complete scan */
+		if (!sband || local->scan_channel_idx >= sband->n_channels) {
+			ieee80211_scan_completed(local_to_hw(local));
+			return;
+		}
+		skip = 0;
+		chan = &sband->channels[local->scan_channel_idx];
+
+		if (chan->flags & IEEE80211_CHAN_DISABLED ||
+		    (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
+		     chan->flags & IEEE80211_CHAN_NO_IBSS))
+			skip = 1;
+
+		if (!skip) {
+			local->scan_channel = chan;
+			if (ieee80211_hw_config(local)) {
+				printk(KERN_DEBUG "%s: failed to set freq to "
+				       "%d MHz for scan\n", wiphy_name(local->hw.wiphy),
+				       chan->center_freq);
+				skip = 1;
+			}
+		}
+
+		/* advance state machine to next channel/band */
+		local->scan_channel_idx++;
+		if (local->scan_channel_idx >= sband->n_channels) {
+			/*
+			 * scan_band may end up == IEEE80211_NUM_BANDS, but
+			 * we'll catch that case above and complete the scan
+			 * if that is the case.
+			 */
+			local->scan_band++;
+			local->scan_channel_idx = 0;
+		}
+
+		if (skip)
+			break;
+
+		next_delay = IEEE80211_PROBE_DELAY +
+			     usecs_to_jiffies(local->hw.channel_change_time);
+		local->scan_state = SCAN_SEND_PROBE;
+		break;
+	case SCAN_SEND_PROBE:
+		next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
+		local->scan_state = SCAN_SET_CHANNEL;
+
+		if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN)
+			break;
+		ieee80211_send_probe_req(sdata, NULL, local->scan_ssid,
+					 local->scan_ssid_len);
+		next_delay = IEEE80211_CHANNEL_TIME;
+		break;
+	}
+
+	if (local->sta_sw_scanning)
+		queue_delayed_work(local->hw.workqueue, &local->scan_work,
+				   next_delay);
+}
+
+
+int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *scan_sdata,
+			     u8 *ssid, size_t ssid_len)
+{
+	struct ieee80211_local *local = scan_sdata->local;
+	struct ieee80211_sub_if_data *sdata;
+
+	if (ssid_len > IEEE80211_MAX_SSID_LEN)
+		return -EINVAL;
+
+	/* MLME-SCAN.request (page 118)  page 144 (11.1.3.1)
+	 * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
+	 * BSSID: MACAddress
+	 * SSID
+	 * ScanType: ACTIVE, PASSIVE
+	 * ProbeDelay: delay (in microseconds) to be used prior to transmitting
+	 *    a Probe frame during active scanning
+	 * ChannelList
+	 * MinChannelTime (>= ProbeDelay), in TU
+	 * MaxChannelTime: (>= MinChannelTime), in TU
+	 */
+
+	 /* MLME-SCAN.confirm
+	  * BSSDescriptionSet
+	  * ResultCode: SUCCESS, INVALID_PARAMETERS
+	 */
+
+	if (local->sta_sw_scanning || local->sta_hw_scanning) {
+		if (local->scan_sdata == scan_sdata)
+			return 0;
+		return -EBUSY;
+	}
+
+	if (local->ops->hw_scan) {
+		int rc = local->ops->hw_scan(local_to_hw(local),
+					     ssid, ssid_len);
+		if (!rc) {
+			local->sta_hw_scanning = 1;
+			local->scan_sdata = scan_sdata;
+		}
+		return rc;
+	}
+
+	local->sta_sw_scanning = 1;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+		if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
+			if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
+				netif_tx_stop_all_queues(sdata->dev);
+				ieee80211_send_nullfunc(local, sdata, 1);
+			}
+		} else
+			netif_tx_stop_all_queues(sdata->dev);
+	}
+	rcu_read_unlock();
+
+	if (ssid) {
+		local->scan_ssid_len = ssid_len;
+		memcpy(local->scan_ssid, ssid, ssid_len);
+	} else
+		local->scan_ssid_len = 0;
+	local->scan_state = SCAN_SET_CHANNEL;
+	local->scan_channel_idx = 0;
+	local->scan_band = IEEE80211_BAND_2GHZ;
+	local->scan_sdata = scan_sdata;
+
+	netif_addr_lock_bh(local->mdev);
+	local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
+	local->ops->configure_filter(local_to_hw(local),
+				     FIF_BCN_PRBRESP_PROMISC,
+				     &local->filter_flags,
+				     local->mdev->mc_count,
+				     local->mdev->mc_list);
+	netif_addr_unlock_bh(local->mdev);
+
+	/* TODO: start scan as soon as all nullfunc frames are ACKed */
+	queue_delayed_work(local->hw.workqueue, &local->scan_work,
+			   IEEE80211_CHANNEL_TIME);
+
+	return 0;
+}
+
+
+int ieee80211_sta_req_scan(struct ieee80211_sub_if_data *sdata, u8 *ssid, size_t ssid_len)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_if_sta *ifsta;
+
+	if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
+		return ieee80211_sta_start_scan(sdata, ssid, ssid_len);
+
+	/*
+	 * STA has a state machine that might need to defer scanning
+	 * while it's trying to associate/authenticate, therefore we
+	 * queue it up to the state machine in that case.
+	 */
+
+	if (local->sta_sw_scanning || local->sta_hw_scanning) {
+		if (local->scan_sdata == sdata)
+			return 0;
+		return -EBUSY;
+	}
+
+	ifsta = &sdata->u.sta;
+
+	ifsta->scan_ssid_len = ssid_len;
+	if (ssid_len)
+		memcpy(ifsta->scan_ssid, ssid, ssid_len);
+	set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
+	queue_work(local->hw.workqueue, &ifsta->work);
+
+	return 0;
+}
+
+
+static void ieee80211_sta_add_scan_ies(struct iw_request_info *info,
+				       struct ieee80211_sta_bss *bss,
+				       char **current_ev, char *end_buf)
+{
+	u8 *pos, *end, *next;
+	struct iw_event iwe;
+
+	if (bss == NULL || bss->ies == NULL)
+		return;
+
+	/*
+	 * If needed, fragment the IEs buffer (at IE boundaries) into short
+	 * enough fragments to fit into IW_GENERIC_IE_MAX octet messages.
+	 */
+	pos = bss->ies;
+	end = pos + bss->ies_len;
+
+	while (end - pos > IW_GENERIC_IE_MAX) {
+		next = pos + 2 + pos[1];
+		while (next + 2 + next[1] - pos < IW_GENERIC_IE_MAX)
+			next = next + 2 + next[1];
+
+		memset(&iwe, 0, sizeof(iwe));
+		iwe.cmd = IWEVGENIE;
+		iwe.u.data.length = next - pos;
+		*current_ev = iwe_stream_add_point(info, *current_ev,
+						   end_buf, &iwe, pos);
+
+		pos = next;
+	}
+
+	if (end > pos) {
+		memset(&iwe, 0, sizeof(iwe));
+		iwe.cmd = IWEVGENIE;
+		iwe.u.data.length = end - pos;
+		*current_ev = iwe_stream_add_point(info, *current_ev,
+						   end_buf, &iwe, pos);
+	}
+}
+
+
+static char *
+ieee80211_sta_scan_result(struct ieee80211_local *local,
+			  struct iw_request_info *info,
+			  struct ieee80211_sta_bss *bss,
+			  char *current_ev, char *end_buf)
+{
+	struct iw_event iwe;
+	char *buf;
+
+	if (time_after(jiffies,
+		       bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE))
+		return current_ev;
+
+	memset(&iwe, 0, sizeof(iwe));
+	iwe.cmd = SIOCGIWAP;
+	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
+	memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
+	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
+					  IW_EV_ADDR_LEN);
+
+	memset(&iwe, 0, sizeof(iwe));
+	iwe.cmd = SIOCGIWESSID;
+	if (bss_mesh_cfg(bss)) {
+		iwe.u.data.length = bss_mesh_id_len(bss);
+		iwe.u.data.flags = 1;
+		current_ev = iwe_stream_add_point(info, current_ev, end_buf,
+						  &iwe, bss_mesh_id(bss));
+	} else {
+		iwe.u.data.length = bss->ssid_len;
+		iwe.u.data.flags = 1;
+		current_ev = iwe_stream_add_point(info, current_ev, end_buf,
+						  &iwe, bss->ssid);
+	}
+
+	if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)
+	    || bss_mesh_cfg(bss)) {
+		memset(&iwe, 0, sizeof(iwe));
+		iwe.cmd = SIOCGIWMODE;
+		if (bss_mesh_cfg(bss))
+			iwe.u.mode = IW_MODE_MESH;
+		else if (bss->capability & WLAN_CAPABILITY_ESS)
+			iwe.u.mode = IW_MODE_MASTER;
+		else
+			iwe.u.mode = IW_MODE_ADHOC;
+		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
+						  &iwe, IW_EV_UINT_LEN);
+	}
+
+	memset(&iwe, 0, sizeof(iwe));
+	iwe.cmd = SIOCGIWFREQ;
+	iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq);
+	iwe.u.freq.e = 0;
+	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
+					  IW_EV_FREQ_LEN);
+
+	memset(&iwe, 0, sizeof(iwe));
+	iwe.cmd = SIOCGIWFREQ;
+	iwe.u.freq.m = bss->freq;
+	iwe.u.freq.e = 6;
+	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
+					  IW_EV_FREQ_LEN);
+	memset(&iwe, 0, sizeof(iwe));
+	iwe.cmd = IWEVQUAL;
+	iwe.u.qual.qual = bss->qual;
+	iwe.u.qual.level = bss->signal;
+	iwe.u.qual.noise = bss->noise;
+	iwe.u.qual.updated = local->wstats_flags;
+	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
+					  IW_EV_QUAL_LEN);
+
+	memset(&iwe, 0, sizeof(iwe));
+	iwe.cmd = SIOCGIWENCODE;
+	if (bss->capability & WLAN_CAPABILITY_PRIVACY)
+		iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
+	else
+		iwe.u.data.flags = IW_ENCODE_DISABLED;
+	iwe.u.data.length = 0;
+	current_ev = iwe_stream_add_point(info, current_ev, end_buf,
+					  &iwe, "");
+
+	ieee80211_sta_add_scan_ies(info, bss, &current_ev, end_buf);
+
+	if (bss->supp_rates_len > 0) {
+		/* display all supported rates in readable format */
+		char *p = current_ev + iwe_stream_lcp_len(info);
+		int i;
+
+		memset(&iwe, 0, sizeof(iwe));
+		iwe.cmd = SIOCGIWRATE;
+		/* Those two flags are ignored... */
+		iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
+
+		for (i = 0; i < bss->supp_rates_len; i++) {
+			iwe.u.bitrate.value = ((bss->supp_rates[i] &
+							0x7f) * 500000);
+			p = iwe_stream_add_value(info, current_ev, p,
+					end_buf, &iwe, IW_EV_PARAM_LEN);
+		}
+		current_ev = p;
+	}
+
+	buf = kmalloc(30, GFP_ATOMIC);
+	if (buf) {
+		memset(&iwe, 0, sizeof(iwe));
+		iwe.cmd = IWEVCUSTOM;
+		sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp));
+		iwe.u.data.length = strlen(buf);
+		current_ev = iwe_stream_add_point(info, current_ev, end_buf,
+						  &iwe, buf);
+		memset(&iwe, 0, sizeof(iwe));
+		iwe.cmd = IWEVCUSTOM;
+		sprintf(buf, " Last beacon: %dms ago",
+			jiffies_to_msecs(jiffies - bss->last_update));
+		iwe.u.data.length = strlen(buf);
+		current_ev = iwe_stream_add_point(info, current_ev,
+						  end_buf, &iwe, buf);
+		kfree(buf);
+	}
+
+	if (bss_mesh_cfg(bss)) {
+		u8 *cfg = bss_mesh_cfg(bss);
+		buf = kmalloc(50, GFP_ATOMIC);
+		if (buf) {
+			memset(&iwe, 0, sizeof(iwe));
+			iwe.cmd = IWEVCUSTOM;
+			sprintf(buf, "Mesh network (version %d)", cfg[0]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(info, current_ev,
+							  end_buf,
+							  &iwe, buf);
+			sprintf(buf, "Path Selection Protocol ID: "
+				"0x%02X%02X%02X%02X", cfg[1], cfg[2], cfg[3],
+							cfg[4]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(info, current_ev,
+							  end_buf,
+							  &iwe, buf);
+			sprintf(buf, "Path Selection Metric ID: "
+				"0x%02X%02X%02X%02X", cfg[5], cfg[6], cfg[7],
+							cfg[8]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(info, current_ev,
+							  end_buf,
+							  &iwe, buf);
+			sprintf(buf, "Congestion Control Mode ID: "
+				"0x%02X%02X%02X%02X", cfg[9], cfg[10],
+							cfg[11], cfg[12]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(info, current_ev,
+							  end_buf,
+							  &iwe, buf);
+			sprintf(buf, "Channel Precedence: "
+				"0x%02X%02X%02X%02X", cfg[13], cfg[14],
+							cfg[15], cfg[16]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(info, current_ev,
+							  end_buf,
+							  &iwe, buf);
+			kfree(buf);
+		}
+	}
+
+	return current_ev;
+}
+
+
+int ieee80211_sta_scan_results(struct ieee80211_local *local,
+			       struct iw_request_info *info,
+			       char *buf, size_t len)
+{
+	char *current_ev = buf;
+	char *end_buf = buf + len;
+	struct ieee80211_sta_bss *bss;
+
+	spin_lock_bh(&local->sta_bss_lock);
+	list_for_each_entry(bss, &local->sta_bss_list, list) {
+		if (buf + len - current_ev <= IW_EV_ADDR_LEN) {
+			spin_unlock_bh(&local->sta_bss_lock);
+			return -E2BIG;
+		}
+		current_ev = ieee80211_sta_scan_result(local, info, bss,
+						       current_ev, end_buf);
+	}
+	spin_unlock_bh(&local->sta_bss_lock);
+	return current_ev - buf;
+}

net/mac80211/spectmgmt.c

@@ -0,0 +1,86 @@
+/*
+ * spectrum management
+ *
+ * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007  Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
+ * Copyright 2007-2008, Intel Corporation
+ * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/ieee80211.h>
+#include <net/wireless.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "sta_info.h"
+#include "wme.h"
+
+static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_data *sdata,
+					struct ieee80211_msrment_ie *request_ie,
+					const u8 *da, const u8 *bssid,
+					u8 dialog_token)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *msr_report;
+
+	skb = dev_alloc_skb(sizeof(*msr_report) + local->hw.extra_tx_headroom +
+				sizeof(struct ieee80211_msrment_ie));
+
+	if (!skb) {
+		printk(KERN_ERR "%s: failed to allocate buffer for "
+				"measurement report frame\n", sdata->dev->name);
+		return;
+	}
+
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+	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->bssid, bssid, ETH_ALEN);
+	msr_report->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+						IEEE80211_STYPE_ACTION);
+
+	skb_put(skb, 1 + sizeof(msr_report->u.action.u.measurement));
+	msr_report->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
+	msr_report->u.action.u.measurement.action_code =
+				WLAN_ACTION_SPCT_MSR_RPRT;
+	msr_report->u.action.u.measurement.dialog_token = dialog_token;
+
+	msr_report->u.action.u.measurement.element_id = WLAN_EID_MEASURE_REPORT;
+	msr_report->u.action.u.measurement.length =
+			sizeof(struct ieee80211_msrment_ie);
+
+	memset(&msr_report->u.action.u.measurement.msr_elem, 0,
+		sizeof(struct ieee80211_msrment_ie));
+	msr_report->u.action.u.measurement.msr_elem.token = request_ie->token;
+	msr_report->u.action.u.measurement.msr_elem.mode |=
+			IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED;
+	msr_report->u.action.u.measurement.msr_elem.type = request_ie->type;
+
+	ieee80211_tx_skb(sdata, skb, 0);
+}
+
+void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
+				       struct ieee80211_mgmt *mgmt,
+				       size_t len)
+{
+	/*
+	 * Ignoring measurement request is spec violation.
+	 * Mandatory measurements must be reported optional
+	 * measurements might be refused or reported incapable
+	 * For now just refuse
+	 * TODO: Answer basic measurement as unmeasured
+	 */
+	ieee80211_send_refuse_measurement_request(sdata,
+			&mgmt->u.action.u.measurement.msr_elem,
+			mgmt->sa, mgmt->bssid,
+			mgmt->u.action.u.measurement.dialog_token);
+}

net/mac80211/util.c

@@ -428,3 +428,187 @@ void ieee80211_iterate_active_interfaces_atomic(
 	rcu_read_unlock();
 }
 EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
+
+void ieee802_11_parse_elems(u8 *start, size_t len,
+			    struct ieee802_11_elems *elems)
+{
+	size_t left = len;
+	u8 *pos = start;
+
+	memset(elems, 0, sizeof(*elems));
+	elems->ie_start = start;
+	elems->total_len = len;
+
+	while (left >= 2) {
+		u8 id, elen;
+
+		id = *pos++;
+		elen = *pos++;
+		left -= 2;
+
+		if (elen > left)
+			return;
+
+		switch (id) {
+		case WLAN_EID_SSID:
+			elems->ssid = pos;
+			elems->ssid_len = elen;
+			break;
+		case WLAN_EID_SUPP_RATES:
+			elems->supp_rates = pos;
+			elems->supp_rates_len = elen;
+			break;
+		case WLAN_EID_FH_PARAMS:
+			elems->fh_params = pos;
+			elems->fh_params_len = elen;
+			break;
+		case WLAN_EID_DS_PARAMS:
+			elems->ds_params = pos;
+			elems->ds_params_len = elen;
+			break;
+		case WLAN_EID_CF_PARAMS:
+			elems->cf_params = pos;
+			elems->cf_params_len = elen;
+			break;
+		case WLAN_EID_TIM:
+			elems->tim = pos;
+			elems->tim_len = elen;
+			break;
+		case WLAN_EID_IBSS_PARAMS:
+			elems->ibss_params = pos;
+			elems->ibss_params_len = elen;
+			break;
+		case WLAN_EID_CHALLENGE:
+			elems->challenge = pos;
+			elems->challenge_len = elen;
+			break;
+		case WLAN_EID_WPA:
+			if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
+			    pos[2] == 0xf2) {
+				/* Microsoft OUI (00:50:F2) */
+				if (pos[3] == 1) {
+					/* OUI Type 1 - WPA IE */
+					elems->wpa = pos;
+					elems->wpa_len = elen;
+				} else if (elen >= 5 && pos[3] == 2) {
+					if (pos[4] == 0) {
+						elems->wmm_info = pos;
+						elems->wmm_info_len = elen;
+					} else if (pos[4] == 1) {
+						elems->wmm_param = pos;
+						elems->wmm_param_len = elen;
+					}
+				}
+			}
+			break;
+		case WLAN_EID_RSN:
+			elems->rsn = pos;
+			elems->rsn_len = elen;
+			break;
+		case WLAN_EID_ERP_INFO:
+			elems->erp_info = pos;
+			elems->erp_info_len = elen;
+			break;
+		case WLAN_EID_EXT_SUPP_RATES:
+			elems->ext_supp_rates = pos;
+			elems->ext_supp_rates_len = elen;
+			break;
+		case WLAN_EID_HT_CAPABILITY:
+			elems->ht_cap_elem = pos;
+			elems->ht_cap_elem_len = elen;
+			break;
+		case WLAN_EID_HT_EXTRA_INFO:
+			elems->ht_info_elem = pos;
+			elems->ht_info_elem_len = elen;
+			break;
+		case WLAN_EID_MESH_ID:
+			elems->mesh_id = pos;
+			elems->mesh_id_len = elen;
+			break;
+		case WLAN_EID_MESH_CONFIG:
+			elems->mesh_config = pos;
+			elems->mesh_config_len = elen;
+			break;
+		case WLAN_EID_PEER_LINK:
+			elems->peer_link = pos;
+			elems->peer_link_len = elen;
+			break;
+		case WLAN_EID_PREQ:
+			elems->preq = pos;
+			elems->preq_len = elen;
+			break;
+		case WLAN_EID_PREP:
+			elems->prep = pos;
+			elems->prep_len = elen;
+			break;
+		case WLAN_EID_PERR:
+			elems->perr = pos;
+			elems->perr_len = elen;
+			break;
+		case WLAN_EID_CHANNEL_SWITCH:
+			elems->ch_switch_elem = pos;
+			elems->ch_switch_elem_len = elen;
+			break;
+		case WLAN_EID_QUIET:
+			if (!elems->quiet_elem) {
+				elems->quiet_elem = pos;
+				elems->quiet_elem_len = elen;
+			}
+			elems->num_of_quiet_elem++;
+			break;
+		case WLAN_EID_COUNTRY:
+			elems->country_elem = pos;
+			elems->country_elem_len = elen;
+			break;
+		case WLAN_EID_PWR_CONSTRAINT:
+			elems->pwr_constr_elem = pos;
+			elems->pwr_constr_elem_len = elen;
+			break;
+		default:
+			break;
+		}
+
+		left -= elen;
+		pos += elen;
+	}
+}
+
+void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_tx_queue_params qparam;
+	int i;
+
+	if (!local->ops->conf_tx)
+		return;
+
+	memset(&qparam, 0, sizeof(qparam));
+
+	qparam.aifs = 2;
+
+	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
+	    !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE))
+		qparam.cw_min = 31;
+	else
+		qparam.cw_min = 15;
+
+	qparam.cw_max = 1023;
+	qparam.txop = 0;
+
+	for (i = 0; i < local_to_hw(local)->queues; i++)
+		local->ops->conf_tx(local_to_hw(local), i, &qparam);
+}
+
+void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+		      int encrypt)
+{
+	skb->dev = sdata->local->mdev;
+	skb_set_mac_header(skb, 0);
+	skb_set_network_header(skb, 0);
+	skb_set_transport_header(skb, 0);
+
+	skb->iif = sdata->dev->ifindex;
+	skb->do_not_encrypt = !encrypt;
+
+	dev_queue_xmit(skb);
+}