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

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

···
 #undef TMP_VAL_VPD_TABLE
 }
 
-static bool ath9k_hw_set_4k_power_cal_table(struct ath_hw *ah,
+static void ath9k_hw_set_4k_power_cal_table(struct ath_hw *ah,
 				  struct ath9k_channel *chan,
 				  int16_t *pTxPowerIndexOffset)
 {
···
 	}
 
 	*pTxPowerIndexOffset = 0;
-
-	return true;
 }
 
-static bool ath9k_hw_set_4k_power_per_rate_table(struct ath_hw *ah,
+static void ath9k_hw_set_4k_power_per_rate_table(struct ath_hw *ah,
 						 struct ath9k_channel *chan,
 						 int16_t *ratesArray,
 						 u16 cfgCtl,
···
 		ratesArray[rateExtOfdm] = targetPowerOfdmExt.tPow2x[0];
 		ratesArray[rateExtCck] = targetPowerCckExt.tPow2x[0];
 	}
-	return true;
 }
 
-static int ath9k_hw_4k_set_txpower(struct ath_hw *ah,
+static void ath9k_hw_4k_set_txpower(struct ath_hw *ah,
 				   struct ath9k_channel *chan,
 				   u16 cfgCtl,
 				   u8 twiceAntennaReduction,
···
 		ht40PowerIncForPdadc = pModal->ht40PowerIncForPdadc;
 	}
 
-	if (!ath9k_hw_set_4k_power_per_rate_table(ah, chan,
+	ath9k_hw_set_4k_power_per_rate_table(ah, chan,
 					       &ratesArray[0], cfgCtl,
 					       twiceAntennaReduction,
 					       twiceMaxRegulatoryPower,
-					       powerLimit)) {
-		DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
-			"ath9k_hw_set_txpower: unable to set "
-			"tx power per rate table\n");
-		return -EIO;
-	}
+					       powerLimit);
 
-	if (!ath9k_hw_set_4k_power_cal_table(ah, chan, &txPowerIndexOffset)) {
-		DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
-			 "ath9k_hw_set_txpower: unable to set power table\n");
-		return -EIO;
-	}
+	ath9k_hw_set_4k_power_cal_table(ah, chan, &txPowerIndexOffset);
 
 	for (i = 0; i < ARRAY_SIZE(ratesArray); i++) {
 		ratesArray[i] =	(int16_t)(txPowerIndexOffset + ratesArray[i]);
···
 	else
 		ah->regulatory.max_power_level = ratesArray[i];
 
-	return 0;
 }
 
 static void ath9k_hw_4k_set_addac(struct ath_hw *ah,
···
 	return;
 }
 
-static bool ath9k_hw_set_def_power_cal_table(struct ath_hw *ah,
+static void ath9k_hw_set_def_power_cal_table(struct ath_hw *ah,
 				  struct ath9k_channel *chan,
 				  int16_t *pTxPowerIndexOffset)
 {
···
 	}
 
 	*pTxPowerIndexOffset = 0;
-
-	return true;
 #undef SM_PD_GAIN
 #undef SM_PDGAIN_B
 }
 
-static bool ath9k_hw_set_def_power_per_rate_table(struct ath_hw *ah,
+static void ath9k_hw_set_def_power_per_rate_table(struct ath_hw *ah,
 						  struct ath9k_channel *chan,
 						  int16_t *ratesArray,
 						  u16 cfgCtl,
···
 				targetPowerCckExt.tPow2x[0];
 		}
 	}
-	return true;
 }
 
-static int ath9k_hw_def_set_txpower(struct ath_hw *ah,
+static void ath9k_hw_def_set_txpower(struct ath_hw *ah,
 				    struct ath9k_channel *chan,
 				    u16 cfgCtl,
 				    u8 twiceAntennaReduction,
···
 		ht40PowerIncForPdadc = pModal->ht40PowerIncForPdadc;
 	}
 
-	if (!ath9k_hw_set_def_power_per_rate_table(ah, chan,
+	ath9k_hw_set_def_power_per_rate_table(ah, chan,
 					       &ratesArray[0], cfgCtl,
 					       twiceAntennaReduction,
 					       twiceMaxRegulatoryPower,
-					       powerLimit)) {
-		DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
-			"ath9k_hw_set_txpower: unable to set "
-			"tx power per rate table\n");
-		return -EIO;
-	}
+					       powerLimit);
 
-	if (!ath9k_hw_set_def_power_cal_table(ah, chan, &txPowerIndexOffset)) {
-		DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
-			 "ath9k_hw_set_txpower: unable to set power table\n");
-		return -EIO;
-	}
+	ath9k_hw_set_def_power_cal_table(ah, chan, &txPowerIndexOffset);
 
 	for (i = 0; i < ARRAY_SIZE(ratesArray); i++) {
 		ratesArray[i] =	(int16_t)(txPowerIndexOffset + ratesArray[i]);
···
 			"Invalid chainmask configuration\n");
 		break;
 	}
-
-	return 0;
 }
 
 static u8 ath9k_hw_def_get_num_ant_config(struct ath_hw *ah,

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

···
 				      struct ath9k_channel *chan);
 	void (*set_board_values)(struct ath_hw *hw, struct ath9k_channel *chan);
 	void (*set_addac)(struct ath_hw *hw, struct ath9k_channel *chan);
-	int (*set_txpower)(struct ath_hw *hw, struct ath9k_channel *chan,
+	void (*set_txpower)(struct ath_hw *hw, struct ath9k_channel *chan,
 			   u16 cfgCtl, u8 twiceAntennaReduction,
 			   u8 twiceMaxRegulatoryPower, u8 powerLimit);
 	u16 (*get_spur_channel)(struct ath_hw *ah, u16 i, bool is2GHz);

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

···
 	int i, regWrites = 0;
 	struct ieee80211_channel *channel = chan->chan;
 	u32 modesIndex, freqIndex;
-	int status;
 
 	switch (chan->chanmode) {
 	case CHANNEL_A:
···
 	if (OLC_FOR_AR9280_20_LATER)
 		ath9k_olc_init(ah);
 
-	status = ah->eep_ops->set_txpower(ah, chan,
-				  ath9k_regd_get_ctl(&ah->regulatory, chan),
-				  channel->max_antenna_gain * 2,
-				  channel->max_power * 2,
-				  min((u32) MAX_RATE_POWER,
-				      (u32) ah->regulatory.power_limit));
-	if (status != 0) {
-		DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
-			"Error initializing transmit power\n");
-		return -EIO;
-	}
+	ah->eep_ops->set_txpower(ah, chan,
+				 ath9k_regd_get_ctl(&ah->regulatory, chan),
+				 channel->max_antenna_gain * 2,
+				 channel->max_power * 2,
+				 min((u32) MAX_RATE_POWER,
+				 (u32) ah->regulatory.power_limit));
 
 	if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
 		DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
···
 	switch (type) {
 	case ATH9K_RESET_POWER_ON:
 		return ath9k_hw_set_reset_power_on(ah);
-		break;
 	case ATH9K_RESET_WARM:
 	case ATH9K_RESET_COLD:
 		return ath9k_hw_set_reset(ah, type);
-		break;
 	default:
 		return false;
 	}
···
 	ath9k_hw_set_regs(ah, chan, macmode);
 
 	if (AR_SREV_9280_10_OR_LATER(ah)) {
-		if (!(ath9k_hw_ar9280_set_channel(ah, chan))) {
-			DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
-				"Failed to set channel\n");
-			return false;
-		}
+		ath9k_hw_ar9280_set_channel(ah, chan);
 	} else {
 		if (!(ath9k_hw_set_channel(ah, chan))) {
 			DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
···
 		}
 	}
 
-	if (ah->eep_ops->set_txpower(ah, chan,
+	ah->eep_ops->set_txpower(ah, chan,
 			     ath9k_regd_get_ctl(&ah->regulatory, chan),
 			     channel->max_antenna_gain * 2,
 			     channel->max_power * 2,
 			     min((u32) MAX_RATE_POWER,
-				 (u32) ah->regulatory.power_limit)) != 0) {
-		DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
-			"Error initializing transmit power\n");
-		return false;
-	}
+			     (u32) ah->regulatory.power_limit));
 
 	synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
 	if (IS_CHAN_B(chan))
···
 
 	REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
 
-	if (AR_SREV_9280_10_OR_LATER(ah)) {
-		if (!(ath9k_hw_ar9280_set_channel(ah, chan)))
-			return -EIO;
-	} else {
+	if (AR_SREV_9280_10_OR_LATER(ah))
+		ath9k_hw_ar9280_set_channel(ah, chan);
+	else
 		if (!(ath9k_hw_set_channel(ah, chan)))
 			return -EIO;
-	}
 
 	for (i = 0; i < AR_NUM_DCU; i++)
 		REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
···
 	return ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD);
 }
 
-bool ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
+void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
 {
 	struct ath9k_channel *chan = ah->curchan;
 	struct ieee80211_channel *channel = chan->chan;
 
 	ah->regulatory.power_limit = min(limit, (u32) MAX_RATE_POWER);
 
-	if (ah->eep_ops->set_txpower(ah, chan,
-			     ath9k_regd_get_ctl(&ah->regulatory, chan),
-			     channel->max_antenna_gain * 2,
-			     channel->max_power * 2,
-			     min((u32) MAX_RATE_POWER,
-				 (u32) ah->regulatory.power_limit)) != 0)
-		return false;
-
-	return true;
+	ah->eep_ops->set_txpower(ah, chan,
+				 ath9k_regd_get_ctl(&ah->regulatory, chan),
+				 channel->max_antenna_gain * 2,
+				 channel->max_power * 2,
+				 min((u32) MAX_RATE_POWER,
+				 (u32) ah->regulatory.power_limit));
 }
 
 void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac)

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

···
 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits);
 bool ath9k_hw_phy_disable(struct ath_hw *ah);
 bool ath9k_hw_disable(struct ath_hw *ah);
-bool ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit);
+void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit);
 void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac);
 void ath9k_hw_setopmode(struct ath_hw *ah);
 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1);

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

···
 	return true;
 }
 
-bool
-ath9k_hw_ar9280_set_channel(struct ath_hw *ah,
-			    struct ath9k_channel *chan)
+void ath9k_hw_ar9280_set_channel(struct ath_hw *ah,
+				 struct ath9k_channel *chan)
 {
 	u16 bMode, fracMode, aModeRefSel = 0;
 	u32 freq, ndiv, channelSel = 0, channelFrac = 0, reg32 = 0;
···
 
 	ah->curchan = chan;
 	ah->curchan_rad_index = -1;
-
-	return true;
 }
 
 static void

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

···
 #ifndef PHY_H
 #define PHY_H
 
-bool ath9k_hw_ar9280_set_channel(struct ath_hw *ah,
+void ath9k_hw_ar9280_set_channel(struct ath_hw *ah,
 				 struct ath9k_channel
 				 *chan);
 bool ath9k_hw_set_channel(struct ath_hw *ah,

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

···
 
 	spin_lock_irqsave(&priv->lock, flags);
 
+	/* Determine HW type */
+	pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &rev_id);
+
+	IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", rev_id);
+
 	if (rev_id & PCI_CFG_REV_ID_BIT_RTP)
 		IWL_DEBUG_INFO(priv, "RTP type \n");
 	else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) {
···
 
 int iwl3945_hw_nic_init(struct iwl_priv *priv)
 {
-	u8 rev_id;
 	int rc;
 	unsigned long flags;
 	struct iwl_rx_queue *rxq = &priv->rxq;
···
 	spin_lock_irqsave(&priv->lock, flags);
 	priv->cfg->ops->lib->apm_ops.init(priv);
 	spin_unlock_irqrestore(&priv->lock, flags);
-
-	/* Determine HW type */
-	rc = pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &rev_id);
-	if (rc)
-		return rc;
-	IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", rev_id);
 
 	rc = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN);
 	if (rc)

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

···
 	u8 is_fat;	/* 1 = 40 MHz channel width */
 	u8 is_dup;	/* 1 = duplicated data streams */
 	u8 action;	/* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */
+	u8 max_search;	/* maximun number of tables we can search */
 	s32 *expected_tpt;	/* throughput metrics; expected_tpt_G, etc. */
 	u32 current_rate;  /* rate_n_flags, uCode API format */
 	struct iwl_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */
···
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct dentry *rs_sta_dbgfs_scale_table_file;
 	struct dentry *rs_sta_dbgfs_stats_table_file;
+	struct dentry *rs_sta_dbgfs_rate_scale_data_file;
 	struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file;
 	u32 dbg_fixed_rate;
 #endif
···
 	tbl->is_dup = 0;
 	tbl->ant_type = (ant_msk >> RATE_MCS_ANT_POS);
 	tbl->lq_type = LQ_NONE;
+	tbl->max_search = IWL_MAX_SEARCH;
 
 	/* legacy rate format */
 	if (!(rate_n_flags & RATE_MCS_HT_MSK)) {
···
 				tbl->lq_type = LQ_MIMO2;
 		/* MIMO3 */
 		} else {
-			if (num_of_ant == 3)
+			if (num_of_ant == 3) {
+				tbl->max_search = IWL_MAX_11N_MIMO3_SEARCH;
 				tbl->lq_type = LQ_MIMO3;
+			}
 		}
 	}
 	return 0;
···
 
 		tbl->is_fat = 0;
 		tbl->is_SGI = 0;
+		tbl->max_search = IWL_MAX_SEARCH;
 	}
 
 	rate_mask = rs_get_supported_rates(lq_sta, NULL, tbl->lq_type);
···
 	lq_sta->total_failed = 0;
 	lq_sta->total_success = 0;
 	lq_sta->flush_timer = jiffies;
+	lq_sta->action_counter = 0;
 }
 
 /*
···
 	tbl->lq_type = LQ_MIMO2;
 	tbl->is_dup = lq_sta->is_dup;
 	tbl->action = 0;
+	tbl->max_search = IWL_MAX_SEARCH;
 	rate_mask = lq_sta->active_mimo2_rate;
 
 	if (iwl_is_fat_tx_allowed(priv, &sta->ht_cap))
···
 	tbl->lq_type = LQ_MIMO3;
 	tbl->is_dup = lq_sta->is_dup;
 	tbl->action = 0;
+	tbl->max_search = IWL_MAX_11N_MIMO3_SEARCH;
 	rate_mask = lq_sta->active_mimo3_rate;
 
 	if (iwl_is_fat_tx_allowed(priv, &sta->ht_cap))
···
 	tbl->is_dup = lq_sta->is_dup;
 	tbl->lq_type = LQ_SISO;
 	tbl->action = 0;
+	tbl->max_search = IWL_MAX_SEARCH;
 	rate_mask = lq_sta->active_siso_rate;
 
 	if (iwl_is_fat_tx_allowed(priv, &sta->ht_cap))
···
 	u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
 	u8 tx_chains_num = priv->hw_params.tx_chains_num;
 	int ret = 0;
+	u8 update_search_tbl_counter = 0;
 
 	for (; ;) {
+		lq_sta->action_counter++;
 		switch (tbl->action) {
 		case IWL_LEGACY_SWITCH_ANTENNA1:
 		case IWL_LEGACY_SWITCH_ANTENNA2:
 			IWL_DEBUG_RATE(priv, "LQ: Legacy toggle Antenna\n");
-
-			lq_sta->action_counter++;
 
 			if ((tbl->action == IWL_LEGACY_SWITCH_ANTENNA1 &&
 							tx_chains_num <= 1) ||
···
 
 			if (rs_toggle_antenna(valid_tx_ant,
 				&search_tbl->current_rate, search_tbl)) {
+				update_search_tbl_counter = 1;
 				rs_set_expected_tpt_table(lq_sta, search_tbl);
 				goto out;
 			}
···
 	tbl->action++;
 	if (tbl->action > IWL_LEGACY_SWITCH_MIMO3_ABC)
 		tbl->action = IWL_LEGACY_SWITCH_ANTENNA1;
+	if (update_search_tbl_counter)
+		search_tbl->action = tbl->action;
 	return 0;
 
 }
···
 	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;
+	u8 update_search_tbl_counter = 0;
 	int ret;
 
 	for (;;) {
···
 
 			memcpy(search_tbl, tbl, sz);
 			if (rs_toggle_antenna(valid_tx_ant,
-				       &search_tbl->current_rate, search_tbl))
+				       &search_tbl->current_rate, search_tbl)) {
+				update_search_tbl_counter = 1;
 				goto out;
+			}
 			break;
 		case IWL_SISO_SWITCH_MIMO2_AB:
 		case IWL_SISO_SWITCH_MIMO2_AC:
···
 			search_tbl->current_rate =
 				rate_n_flags_from_tbl(priv, search_tbl,
 						      index, is_green);
+			update_search_tbl_counter = 1;
 			goto out;
 		case IWL_SISO_SWITCH_MIMO3_ABC:
 			IWL_DEBUG_RATE(priv, "LQ: SISO switch to MIMO3\n");
···
 	tbl->action++;
 	if (tbl->action > IWL_SISO_SWITCH_MIMO3_ABC)
 		tbl->action = IWL_SISO_SWITCH_ANTENNA1;
+	if (update_search_tbl_counter)
+		search_tbl->action = tbl->action;
+
 	return 0;
 }
 
···
 	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;
+	u8 update_search_tbl_counter = 0;
 	int ret;
 
 	for (;;) {
···
 
 			memcpy(search_tbl, tbl, sz);
 			if (rs_toggle_antenna(valid_tx_ant,
-				       &search_tbl->current_rate, search_tbl))
+				       &search_tbl->current_rate, search_tbl)) {
+				update_search_tbl_counter = 1;
 				goto out;
+			}
 			break;
 		case IWL_MIMO2_SWITCH_SISO_A:
 		case IWL_MIMO2_SWITCH_SISO_B:
···
 			search_tbl->current_rate =
 				rate_n_flags_from_tbl(priv, search_tbl,
 						      index, is_green);
+			update_search_tbl_counter = 1;
 			goto out;
 
 		case IWL_MIMO2_SWITCH_MIMO3_ABC:
···
 	tbl->action++;
 	if (tbl->action > IWL_MIMO2_SWITCH_MIMO3_ABC)
 		tbl->action = IWL_MIMO2_SWITCH_ANTENNA1;
+	if (update_search_tbl_counter)
+		search_tbl->action = tbl->action;
+
 	return 0;
 
 }
···
 	u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
 	u8 tx_chains_num = priv->hw_params.tx_chains_num;
 	int ret;
+	u8 update_search_tbl_counter = 0;
 
 	for (;;) {
 		lq_sta->action_counter++;
···
 			search_tbl->current_rate =
 				rate_n_flags_from_tbl(priv, search_tbl,
 						      index, is_green);
+			update_search_tbl_counter = 1;
 			goto out;
 		}
 		tbl->action++;
···
 	tbl->action++;
 	if (tbl->action > IWL_MIMO3_SWITCH_GI)
 		tbl->action = IWL_MIMO3_SWITCH_ANTENNA1;
+	if (update_search_tbl_counter)
+		search_tbl->action = tbl->action;
+
 	return 0;
 
 }
···
 		 * before next round of mode comparisons. */
 		tbl1 = &(lq_sta->lq_info[lq_sta->active_tbl]);
 		if (is_legacy(tbl1->lq_type) && !conf_is_ht(conf) &&
-		    lq_sta->action_counter >= 1) {
-			lq_sta->action_counter = 0;
+		    lq_sta->action_counter > tbl1->max_search) {
 			IWL_DEBUG_RATE(priv, "LQ: STAY in legacy table\n");
 			rs_set_stay_in_table(priv, 1, lq_sta);
 		}
···
 		 * have been tried and compared, stay in this best modulation
 		 * mode for a while before next round of mode comparisons. */
 		if (lq_sta->enable_counter &&
-		    (lq_sta->action_counter >= IWL_ACTION_LIMIT)) {
+		    (lq_sta->action_counter >= tbl1->max_search)) {
 			if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) &&
 			    (lq_sta->tx_agg_tid_en & (1 << tid)) &&
 			    (tid != MAX_TID_COUNT)) {
···
 							  lq_sta, sta);
 				}
 			}
-			lq_sta->action_counter = 0;
 			rs_set_stay_in_table(priv, 0, lq_sta);
 		}
 	}
···
 	.open = open_file_generic,
 };
 
+static ssize_t rs_sta_dbgfs_rate_scale_data_read(struct file *file,
+			char __user *user_buf, size_t count, loff_t *ppos)
+{
+	char buff[120];
+	int desc = 0;
+	ssize_t ret;
+
+	struct iwl_lq_sta *lq_sta = file->private_data;
+	struct iwl_priv *priv;
+	struct iwl_scale_tbl_info *tbl = &lq_sta->lq_info[lq_sta->active_tbl];
+
+	priv = lq_sta->drv;
+
+	if (is_Ht(tbl->lq_type))
+		desc += sprintf(buff+desc,
+				"Bit Rate= %d Mb/s\n",
+				tbl->expected_tpt[lq_sta->last_txrate_idx]);
+	else
+		desc += sprintf(buff+desc,
+				"Bit Rate= %d Mb/s\n",
+				iwl_rates[lq_sta->last_txrate_idx].ieee >> 1);
+	desc += sprintf(buff+desc,
+			"Signal Level= %d dBm\tNoise Level= %d dBm\n",
+			priv->last_rx_rssi, priv->last_rx_noise);
+	desc += sprintf(buff+desc,
+			"Tsf= 0x%llx\tBeacon time= 0x%08X\n",
+			priv->last_tsf, priv->last_beacon_time);
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+	return ret;
+}
+
+static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = {
+	.read = rs_sta_dbgfs_rate_scale_data_read,
+	.open = open_file_generic,
+};
+
 static void rs_add_debugfs(void *priv, void *priv_sta,
 					struct dentry *dir)
 {
···
 	lq_sta->rs_sta_dbgfs_stats_table_file =
 		debugfs_create_file("rate_stats_table", 0600, dir,
 			lq_sta, &rs_sta_dbgfs_stats_table_ops);
+	lq_sta->rs_sta_dbgfs_rate_scale_data_file =
+		debugfs_create_file("rate_scale_data", 0600, dir,
+			lq_sta, &rs_sta_dbgfs_rate_scale_data_ops);
 	lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file =
 		debugfs_create_u8("tx_agg_tid_enable", 0600, dir,
 		&lq_sta->tx_agg_tid_en);
···
 	struct iwl_lq_sta *lq_sta = priv_sta;
 	debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file);
 	debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file);
+	debugfs_remove(lq_sta->rs_sta_dbgfs_rate_scale_data_file);
 	debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file);
 }
 #endif

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

···
 #define IWL_MIMO3_SWITCH_GI             8
 
 
+#define IWL_MAX_11N_MIMO3_SEARCH IWL_MIMO3_SWITCH_GI
+#define IWL_MAX_SEARCH IWL_MIMO2_SWITCH_MIMO3_ABC
 
 /*FIXME:RS:add possible actions for MIMO3*/
 

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

···
 
 	priv->cfg->ops->smgmt->clear_station_table(priv);
 
-	if (!priv->error_recovering)
-		priv->start_calib = 0;
+	priv->start_calib = 0;
 
 	/* Add the broadcast address so we can send broadcast frames */
 	if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) ==
···
 	tasklet_kill(&priv->irq_tasklet);
 }
 
-static void iwl_error_recovery(struct iwl_priv *priv)
-{
-	unsigned long flags;
-
-	memcpy(&priv->staging_rxon, &priv->recovery_rxon,
-	       sizeof(priv->staging_rxon));
-	priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-	iwlcore_commit_rxon(priv);
-
-	iwl_rxon_add_station(priv, priv->bssid, 1);
-
-	spin_lock_irqsave(&priv->lock, flags);
-	priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
-	priv->error_recovering = 0;
-	spin_unlock_irqrestore(&priv->lock, flags);
-}
-
 static void iwl_irq_tasklet(struct iwl_priv *priv)
 {
 	u32 inta, handled = 0;
···
 	set_bit(STATUS_READY, &priv->status);
 	wake_up_interruptible(&priv->wait_command_queue);
 
-	if (priv->error_recovering)
-		iwl_error_recovery(priv);
-
 	iwl_power_update_mode(priv, 1);
 
 	/* reassociate for ADHOC mode */
···
 			continue;
 		}
 
-		/* Clear out the uCode error bit if it is set */
-		clear_bit(STATUS_FW_ERROR, &priv->status);
-
 		/* start card; "initialize" will load runtime ucode */
 		iwl_nic_start(priv);
 
···
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
 		return;
 
-	iwl_down(priv);
-	queue_work(priv->workqueue, &priv->up);
+	if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
+		mutex_lock(&priv->mutex);
+		priv->vif = NULL;
+		priv->is_open = 0;
+		mutex_unlock(&priv->mutex);
+		iwl_down(priv);
+		ieee80211_restart_hw(priv->hw);
+	} else {
+		iwl_down(priv);
+		queue_work(priv->workqueue, &priv->up);
+	}
 }
 
 static void iwl_bg_rx_replenish(struct work_struct *data)
···
 	if (!priv->vif || !priv->is_open)
 		return;
 
-	iwl_power_cancel_timeout(priv);
 	iwl_scan_cancel_timeout(priv, 200);
 
 	conf = ieee80211_get_hw_conf(priv->hw);
···
 	 * 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);
+		iwl_power_update_mode(priv, 0);
 
 	/* Enable Rx differential gain and sensitivity calibrations */
 	iwl_chain_noise_reset(priv);
···
 
 	IWL_DEBUG_MAC80211(priv, "enter\n");
 
-	if (!priv->is_open) {
-		IWL_DEBUG_MAC80211(priv, "leave - skip\n");
+	if (!priv->is_open)
 		return;
-	}
 
 	priv->is_open = 0;
 
···
 {
 	struct iwl_priv *priv = dev_get_drvdata(d);
 	int mode = priv->power_data.user_power_setting;
-	int system = priv->power_data.system_power_setting;
 	int level = priv->power_data.power_mode;
 	char *p = buf;
 
-	switch (system) {
-	case IWL_POWER_SYS_AUTO:
-		p += sprintf(p, "SYSTEM:auto");
-		break;
-	case IWL_POWER_SYS_AC:
-		p += sprintf(p, "SYSTEM:ac");
-		break;
-	case IWL_POWER_SYS_BATTERY:
-		p += sprintf(p, "SYSTEM:battery");
-		break;
-	}
-
-	p += sprintf(p, "\tMODE:%s", (mode < IWL_POWER_AUTO) ?
-			"fixed" : "auto");
-	p += sprintf(p, "\tINDEX:%d", level);
-	p += sprintf(p, "\n");
+	p += sprintf(p, "INDEX:%d\t", level);
+	p += sprintf(p, "USER:%d\n", mode);
 	return p - buf + 1;
 }
 
 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
 		   store_power_level);
 
+static ssize_t show_qos(struct device *d,
+				struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+	char *p = buf;
+	int   q;
+
+	for (q = 0; q < AC_NUM; q++) {
+		p += sprintf(p, "\tcw_min\tcw_max\taifsn\ttxop\n");
+		p += sprintf(p, "AC[%d]\t%u\t%u\t%u\t%u\n", q,
+			     priv->qos_data.def_qos_parm.ac[q].cw_min,
+			     priv->qos_data.def_qos_parm.ac[q].cw_max,
+			     priv->qos_data.def_qos_parm.ac[q].aifsn,
+			     priv->qos_data.def_qos_parm.ac[q].edca_txop);
+	}
+
+	return p - buf + 1;
+}
+
+static DEVICE_ATTR(qos, S_IRUGO, show_qos, NULL);
 
 static ssize_t show_statistics(struct device *d,
 			       struct device_attribute *attr, char *buf)
···
 	INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
 
 	iwl_setup_scan_deferred_work(priv);
-	iwl_setup_power_deferred_work(priv);
 
 	if (priv->cfg->ops->lib->setup_deferred_work)
 		priv->cfg->ops->lib->setup_deferred_work(priv);
···
 
 	cancel_delayed_work_sync(&priv->init_alive_start);
 	cancel_delayed_work(&priv->scan_check);
-	cancel_delayed_work_sync(&priv->set_power_save);
 	cancel_delayed_work(&priv->alive_start);
 	cancel_work_sync(&priv->beacon_update);
 	del_timer_sync(&priv->statistics_periodic);
···
 	&dev_attr_debug_level.attr,
 #endif
 	&dev_attr_version.attr,
-
+	&dev_attr_qos.attr,
 	NULL
 };
 

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

···
 		priv->cfg->ops->lib->update_chain_flags(priv);
 
 	data->state = IWL_CHAIN_NOISE_DONE;
-	iwl_power_enable_management(priv);
+	iwl_power_update_mode(priv, 0);
 }
 EXPORT_SYMBOL(iwl_chain_noise_calibration);
 

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

···
 }
 EXPORT_SYMBOL(iwl_activate_qos);
 
+/*
+ * AC        CWmin         CW max      AIFSN      TXOP Limit    TXOP Limit
+ *                                              (802.11b)      (802.11a/g)
+ * AC_BK      15            1023        7           0               0
+ * AC_BE      15            1023        3           0               0
+ * AC_VI       7              15        2          6.016ms       3.008ms
+ * AC_VO       3               7        2          3.264ms       1.504ms
+ */
 void iwl_reset_qos(struct iwl_priv *priv)
 {
 	u16 cw_min = 15;
···
 	if (priv->qos_data.qos_active)
 		aifs = 3;
 
+	/* AC_BE */
 	priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min);
 	priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max);
 	priv->qos_data.def_qos_parm.ac[0].aifsn = aifs;
···
 	priv->qos_data.def_qos_parm.ac[0].reserved1 = 0;
 
 	if (priv->qos_data.qos_active) {
+		/* AC_BK */
 		i = 1;
 		priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min);
 		priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max);
···
 		priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
 		priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
 
+		/* AC_VI */
 		i = 2;
 		priv->qos_data.def_qos_parm.ac[i].cw_min =
 			cpu_to_le16((cw_min + 1) / 2 - 1);
 		priv->qos_data.def_qos_parm.ac[i].cw_max =
-			cpu_to_le16(cw_max);
+			cpu_to_le16(cw_min);
 		priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
 		if (is_legacy)
 			priv->qos_data.def_qos_parm.ac[i].edca_txop =
···
 				cpu_to_le16(3008);
 		priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
 
+		/* AC_VO */
 		i = 3;
 		priv->qos_data.def_qos_parm.ac[i].cw_min =
 			cpu_to_le16((cw_min + 1) / 4 - 1);
 		priv->qos_data.def_qos_parm.ac[i].cw_max =
-			cpu_to_le16((cw_max + 1) / 2 - 1);
+			cpu_to_le16((cw_min + 1) / 2 - 1);
 		priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
 		priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
 		if (is_legacy)
···
 	if (iwl_is_monitor_mode(priv) &&
 	    !(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) &&
 	    ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)) {
-		rx_chain = 0x07 << RXON_RX_CHAIN_VALID_POS;
-		rx_chain |= 0x06 << RXON_RX_CHAIN_FORCE_SEL_POS;
-		rx_chain |= 0x07 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS;
-		rx_chain |= 0x01 << RXON_RX_CHAIN_DRIVER_FORCE_POS;
+		rx_chain = ANT_ABC << RXON_RX_CHAIN_VALID_POS;
+		rx_chain |= ANT_BC << RXON_RX_CHAIN_FORCE_SEL_POS;
+		rx_chain |= ANT_ABC << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS;
+		rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS;
 	}
 
 	priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain);
···
 }
 EXPORT_SYMBOL(iwl_connection_init_rx_config);
 
-void iwl_set_rate(struct iwl_priv *priv)
+static void iwl_set_rate(struct iwl_priv *priv)
 {
 	const struct ieee80211_supported_band *hw = NULL;
 	struct ieee80211_rate *rate;
···
 		priv->staging_rxon.ofdm_basic_rates =
 		   (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
 }
-EXPORT_SYMBOL(iwl_set_rate);
 
 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 {
···
 		IWL_DEBUG(priv, IWL_DL_FW_ERRORS,
 			  "Restarting adapter due to uCode error.\n");
 
-		if (iwl_is_associated(priv)) {
-			memcpy(&priv->recovery_rxon, &priv->active_rxon,
-			       sizeof(priv->recovery_rxon));
-			priv->error_recovering = 1;
-		}
 		if (priv->cfg->mod_params->restart_fw)
 			queue_work(priv->workqueue, &priv->restart);
 	}
···
 	priv->ibss_beacon = NULL;
 
 	spin_lock_init(&priv->lock);
-	spin_lock_init(&priv->power_data.lock);
 	spin_lock_init(&priv->sta_lock);
 	spin_lock_init(&priv->hcmd_lock);
 
···
 
 	iwl_conf->tx_chan_width = iwl_conf->supported_chan_width != 0;
 	iwl_conf->ht_protection =
-		bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
+		bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
 	iwl_conf->non_GF_STA_present =
-		!!(bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
+		!!(bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
 
 	rcu_read_unlock();
 
···
 		iwl_set_rate(priv);
 	}
 
-	if (changed & IEEE80211_CONF_CHANGE_PS) {
-		if (conf->flags & IEEE80211_CONF_PS)
-			ret = iwl_power_set_user_mode(priv, IWL_POWER_INDEX_3);
-		else
-			ret = iwl_power_set_user_mode(priv, IWL_POWER_MODE_CAM);
+	if (changed & IEEE80211_CONF_CHANGE_PS &&
+	    priv->iw_mode == NL80211_IFTYPE_STATION) {
+		priv->power_data.power_disabled =
+			!(conf->flags & IEEE80211_CONF_PS);
+		ret = iwl_power_update_mode(priv, 0);
 		if (ret)
 			IWL_DEBUG_MAC80211(priv, "Error setting power level\n");
-
 	}
 
 	if (changed & IEEE80211_CONF_CHANGE_POWER) {
···
 		iwlcore_commit_rxon(priv);
 	}
 
-	iwl_power_update_mode(priv, 0);
-
-	/* Per mac80211.h: This is only used in IBSS mode... */
 	if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
-
-		/* switch to CAM during association period.
-		 * the ucode will block any association/authentication
-		 * frome during assiciation period if it can not hear
-		 * the AP because of PM. the timer enable PM back is
-		 * association do not complete
-		 */
-		if (priv->hw->conf.channel->flags &
-		    (IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_RADAR))
-				iwl_power_disable_management(priv, 3000);
-
 		IWL_DEBUG_MAC80211(priv, "leave - not in IBSS\n");
 		mutex_unlock(&priv->mutex);
 		return;

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

···
 
 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv);
 
-void iwl_set_rate(struct iwl_priv *priv);
-
 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx);
 
 static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)

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

···
 	const struct iwl_rxon_cmd active_rxon;
 	struct iwl_rxon_cmd staging_rxon;
 
-	int error_recovering;
 	struct iwl_rxon_cmd recovery_rxon;
 
 	/* 1st responses from initialize and runtime uCode images.
···
 
 	struct tasklet_struct irq_tasklet;
 
-	struct delayed_work set_power_save;
 	struct delayed_work init_alive_start;
 	struct delayed_work alive_start;
 	struct delayed_work scan_check;

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

···
 
 	return 0;
 err:
-	IWL_ERR(priv, "Unsupported EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n",
+	IWL_ERR(priv, "Unsupported (too old) EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n",
 		  eeprom_ver, priv->cfg->eeprom_ver,
 		  calib_ver,  priv->cfg->eeprom_calib_ver);
 	return -EINVAL;

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

···
 #include "iwl-power.h"
 
 /*
- * Setting power level allow the card to go to sleep when not busy
- * there are three factor that decide the power level to go to, they
- * are list here with its priority
- *  1- critical_power_setting this will be set according to card temperature.
- *  2- system_power_setting this will be set by system PM manager.
- *  3- user_power_setting this will be set by user either by writing to sys or
- *  	mac80211
+ * Setting power level allow the card to go to sleep when not busy.
  *
- * if system_power_setting and user_power_setting is set to auto
- * the power level will be decided according to association status and battery
- * status.
+ * The power level is set to INDEX_1 (the least deep state) by
+ * default, and will, in the future, be the deepest state unless
+ * otherwise required by pm_qos network latency requirements.
  *
+ * Using INDEX_1 without pm_qos is ok because mac80211 will disable
+ * PS when even checking every beacon for the TIM bit would exceed
+ * the required latency.
  */
 
-#define MSEC_TO_USEC 1024
 #define IWL_POWER_RANGE_0_MAX  (2)
 #define IWL_POWER_RANGE_1_MAX  (10)
 
 
-
-#define IWL_POWER_ON_BATTERY		IWL_POWER_INDEX_5
-#define IWL_POWER_ON_AC_DISASSOC	IWL_POWER_MODE_CAM
-#define IWL_POWER_ON_AC_ASSOC		IWL_POWER_MODE_CAM
-
-
-#define IWL_CT_KILL_TEMPERATURE		110
-#define IWL_MIN_POWER_TEMPERATURE	100
-#define IWL_REDUCED_POWER_TEMPERATURE	95
-
+#define NOSLP cpu_to_le16(0), 0, 0
+#define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
+#define TU_TO_USEC 1024
+#define SLP_TOUT(T) cpu_to_le32((T) * TU_TO_USEC)
+#define SLP_VEC(X0, X1, X2, X3, X4) {cpu_to_le32(X0), \
+				     cpu_to_le32(X1), \
+				     cpu_to_le32(X2), \
+				     cpu_to_le32(X3), \
+				     cpu_to_le32(X4)}
 /* default power management (not Tx power) table values */
-/* for TIM  0-10 */
-static struct iwl_power_vec_entry range_0[IWL_POWER_MAX] = {
+/* for DTIM period 0 through IWL_POWER_RANGE_0_MAX */
+static const struct iwl_power_vec_entry range_0[IWL_POWER_NUM] = {
 	{{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
 	{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 2, 2, 0xFF)}, 0},
 	{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(1, 2, 2, 2, 0xFF)}, 0},
···
 };
 
 
-/* for TIM = 3-10 */
-static struct iwl_power_vec_entry range_1[IWL_POWER_MAX] = {
+/* for DTIM period IWL_POWER_RANGE_0_MAX + 1 through IWL_POWER_RANGE_1_MAX */
+static const struct iwl_power_vec_entry range_1[IWL_POWER_NUM] = {
 	{{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
 	{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
 	{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(1, 2, 3, 4, 7)}, 0},
···
 	{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(2, 4, 7, 10, 10)}, 2}
 };
 
-/* for TIM > 11 */
-static struct iwl_power_vec_entry range_2[IWL_POWER_MAX] = {
+/* for DTIM period > IWL_POWER_RANGE_1_MAX */
+static const struct iwl_power_vec_entry range_2[IWL_POWER_NUM] = {
 	{{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
 	{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
 	{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
···
 /* set card power command */
 static int iwl_set_power(struct iwl_priv *priv, void *cmd)
 {
-	return iwl_send_cmd_pdu_async(priv, POWER_TABLE_CMD,
-				      sizeof(struct iwl_powertable_cmd),
-				      cmd, NULL);
-}
-/* decide the right power level according to association status
- * and battery status
- */
-static u16 iwl_get_auto_power_mode(struct iwl_priv *priv)
-{
-	u16 mode;
-
-	switch (priv->power_data.user_power_setting) {
-	case IWL_POWER_AUTO:
-		/* if running on battery */
-		if (priv->power_data.is_battery_active)
-			mode = IWL_POWER_ON_BATTERY;
-		else if (iwl_is_associated(priv))
-			mode = IWL_POWER_ON_AC_ASSOC;
-		else
-			mode = IWL_POWER_ON_AC_DISASSOC;
-		break;
-	default:
-		mode = priv->power_data.user_power_setting;
-		break;
-	}
-	return mode;
+	return iwl_send_cmd_pdu(priv, POWER_TABLE_CMD,
+				sizeof(struct iwl_powertable_cmd), cmd);
 }
 
 /* initialize to default */
 static void iwl_power_init_handle(struct iwl_priv *priv)
 {
 	struct iwl_power_mgr *pow_data;
-	int size = sizeof(struct iwl_power_vec_entry) * IWL_POWER_MAX;
+	int size = sizeof(struct iwl_power_vec_entry) * IWL_POWER_NUM;
 	struct iwl_powertable_cmd *cmd;
 	int i;
 	u16 lctl;
···
 
 	IWL_DEBUG_POWER(priv, "adjust power command flags\n");
 
-	for (i = 0; i < IWL_POWER_MAX; i++) {
+	for (i = 0; i < IWL_POWER_NUM; i++) {
 		cmd = &pow_data->pwr_range_0[i].cmd;
 
 		if (lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN)
···
 	update_chains = priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE ||
 			priv->chain_noise_data.state == IWL_CHAIN_NOISE_ALIVE;
 
-	/* If on battery, set to 3,
-	 * if plugged into AC power, set to CAM ("continuously aware mode"),
-	 * else user level */
+	final_mode = priv->power_data.user_power_setting;
 
-	switch (setting->system_power_setting) {
-	case IWL_POWER_SYS_AUTO:
-		final_mode = iwl_get_auto_power_mode(priv);
-		break;
-	case IWL_POWER_SYS_BATTERY:
-		final_mode = IWL_POWER_INDEX_3;
-		break;
-	case IWL_POWER_SYS_AC:
-		final_mode = IWL_POWER_MODE_CAM;
-		break;
-	default:
-		final_mode = IWL_POWER_INDEX_3;
-		WARN_ON(1);
-	}
-
-	if (setting->critical_power_setting > final_mode)
-		final_mode = setting->critical_power_setting;
-
-	/* driver only support CAM for non STA network */
-	if (priv->iw_mode != NL80211_IFTYPE_STATION)
+	if (setting->power_disabled)
 		final_mode = IWL_POWER_MODE_CAM;
 
-	if (iwl_is_ready_rf(priv) && !setting->power_disabled &&
+	if (iwl_is_ready_rf(priv) &&
 	    ((setting->power_mode != final_mode) || force)) {
 		struct iwl_powertable_cmd cmd;
 
···
 
 		if (final_mode == IWL_POWER_MODE_CAM)
 			clear_bit(STATUS_POWER_PMI, &priv->status);
-		else
-			set_bit(STATUS_POWER_PMI, &priv->status);
 
 		if (priv->cfg->ops->lib->update_chain_flags && update_chains)
 			priv->cfg->ops->lib->update_chain_flags(priv);
···
 }
 EXPORT_SYMBOL(iwl_power_update_mode);
 
-/* Allow other iwl code to disable/enable power management active
- * this will be useful for rate scale to disable PM during heavy
- * Tx/Rx activities
- */
-int iwl_power_disable_management(struct iwl_priv *priv, u32 ms)
-{
-	u16 prev_mode;
-	int ret = 0;
-
-	if (priv->power_data.power_disabled)
-		return -EBUSY;
-
-	prev_mode = priv->power_data.user_power_setting;
-	priv->power_data.user_power_setting = IWL_POWER_MODE_CAM;
-	ret = iwl_power_update_mode(priv, 0);
-	priv->power_data.power_disabled = 1;
-	priv->power_data.user_power_setting = prev_mode;
-	cancel_delayed_work(&priv->set_power_save);
-	if (ms)
-		queue_delayed_work(priv->workqueue, &priv->set_power_save,
-				   msecs_to_jiffies(ms));
-
-
-	return ret;
-}
-EXPORT_SYMBOL(iwl_power_disable_management);
-
-/* Allow other iwl code to disable/enable power management active
- * this will be useful for rate scale to disable PM during high
- * volume activities
- */
-int iwl_power_enable_management(struct iwl_priv *priv)
-{
-	int ret = 0;
-
-	priv->power_data.power_disabled = 0;
-	ret = iwl_power_update_mode(priv, 0);
-	return ret;
-}
-EXPORT_SYMBOL(iwl_power_enable_management);
-
 /* set user_power_setting */
 int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode)
 {
-	if (mode > IWL_POWER_MAX)
+	if (mode >= IWL_POWER_NUM)
 		return -EINVAL;
 
 	priv->power_data.user_power_setting = mode;
···
 }
 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)
-{
-	if (mode < IWL_POWER_SYS_MAX)
-		priv->power_data.system_power_setting = mode;
-	else
-		return -EINVAL;
-	return iwl_power_update_mode(priv, 0);
-}
-EXPORT_SYMBOL(iwl_power_set_system_mode);
-
 /* initialize to default */
 void iwl_power_initialize(struct iwl_priv *priv)
 {
 	iwl_power_init_handle(priv);
-	priv->power_data.user_power_setting = IWL_POWER_AUTO;
-	priv->power_data.system_power_setting = IWL_POWER_SYS_AUTO;
-	priv->power_data.power_disabled = 0;
-	priv->power_data.is_battery_active = 0;
-	priv->power_data.critical_power_setting = 0;
+	priv->power_data.user_power_setting = IWL_POWER_INDEX_1;
+	/* default to disabled until mac80211 says otherwise */
+	priv->power_data.power_disabled = 1;
 }
 EXPORT_SYMBOL(iwl_power_initialize);
-
-/* set critical_power_setting according to temperature value */
-int iwl_power_temperature_change(struct iwl_priv *priv)
-{
-	int ret = 0;
-	s32 temperature = KELVIN_TO_CELSIUS(priv->last_temperature);
-	u16 new_critical = priv->power_data.critical_power_setting;
-
-	if (temperature > IWL_CT_KILL_TEMPERATURE)
-		return 0;
-	else if (temperature > IWL_MIN_POWER_TEMPERATURE)
-		new_critical = IWL_POWER_INDEX_5;
-	else if (temperature > IWL_REDUCED_POWER_TEMPERATURE)
-		new_critical = IWL_POWER_INDEX_3;
-	else
-		new_critical = IWL_POWER_MODE_CAM;
-
-	if (new_critical != priv->power_data.critical_power_setting)
-		priv->power_data.critical_power_setting = new_critical;
-
-	if (priv->power_data.critical_power_setting >
-				priv->power_data.power_mode)
-		ret = iwl_power_update_mode(priv, 0);
-
-	return ret;
-}
-EXPORT_SYMBOL(iwl_power_temperature_change);
-
-static void iwl_bg_set_power_save(struct work_struct *work)
-{
-	struct iwl_priv *priv = container_of(work,
-				struct iwl_priv, set_power_save.work);
-	IWL_DEBUG_POWER(priv, "update power\n");
-
-	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
-		return;
-
-	mutex_lock(&priv->mutex);
-
-	/* on starting association we disable power management
-	 * until association, if association failed then this
-	 * timer will expire and enable PM again.
-	 */
-	if (!iwl_is_associated(priv))
-		iwl_power_enable_management(priv);
-
-	mutex_unlock(&priv->mutex);
-}
-void iwl_setup_power_deferred_work(struct iwl_priv *priv)
-{
-	INIT_DELAYED_WORK(&priv->set_power_save, iwl_bg_set_power_save);
-}
-EXPORT_SYMBOL(iwl_setup_power_deferred_work);
-
-void iwl_power_cancel_timeout(struct iwl_priv *priv)
-{
-	cancel_delayed_work(&priv->set_power_save);
-}
-EXPORT_SYMBOL(iwl_power_cancel_timeout);

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

···
 	IWL_POWER_INDEX_3,
 	IWL_POWER_INDEX_4,
 	IWL_POWER_INDEX_5,
-	IWL_POWER_AUTO,
-	IWL_POWER_MAX = IWL_POWER_AUTO,
+	IWL_POWER_NUM
 };
-
-enum {
-	IWL_POWER_SYS_AUTO,
-	IWL_POWER_SYS_AC,
-	IWL_POWER_SYS_BATTERY,
-	IWL_POWER_SYS_MAX,
-};
-
 
 /* Power management (not Tx power) structures */
 
-#define NOSLP cpu_to_le16(0), 0, 0
-#define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
-#define SLP_TOUT(T) cpu_to_le32((T) * MSEC_TO_USEC)
-#define SLP_VEC(X0, X1, X2, X3, X4) {cpu_to_le32(X0), \
-				     cpu_to_le32(X1), \
-				     cpu_to_le32(X2), \
-				     cpu_to_le32(X3), \
-				     cpu_to_le32(X4)}
 struct iwl_power_vec_entry {
 	struct iwl_powertable_cmd cmd;
 	u8 no_dtim;
 };
 
 struct iwl_power_mgr {
-	spinlock_t lock;
-	struct iwl_power_vec_entry pwr_range_0[IWL_POWER_MAX];
-	struct iwl_power_vec_entry pwr_range_1[IWL_POWER_MAX];
-	struct iwl_power_vec_entry pwr_range_2[IWL_POWER_MAX];
+	struct iwl_power_vec_entry pwr_range_0[IWL_POWER_NUM];
+	struct iwl_power_vec_entry pwr_range_1[IWL_POWER_NUM];
+	struct iwl_power_vec_entry pwr_range_2[IWL_POWER_NUM];
 	u32 dtim_period;
 	/* 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 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 */
+	u8 user_power_setting; /* set by user through sysfs */
+	u8 power_disabled; /* set by mac80211's CONF_PS */
 };
 
-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, 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);
-int iwl_power_set_system_mode(struct iwl_priv *priv, u16 mode);
 void iwl_power_initialize(struct iwl_priv *priv);
-int iwl_power_temperature_change(struct iwl_priv *priv);
 
 #endif  /* __iwl_power_setting_h__ */

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

···
 	int ret = 0;
 	u32 rate_flags = 0;
 	u16 cmd_len;
+	u16 rx_chain = 0;
 	enum ieee80211_band band;
 	u8 n_probes = 0;
-	u8 rx_chain = priv->hw_params.valid_rx_ant;
+	u8 rx_ant = priv->hw_params.valid_rx_ant;
 	u8 rate;
 	bool is_active = false;
 
···
 		 * Avoid A (0x1) because of its off-channel reception on A-band.
 		 */
 		if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)
-			rx_chain = 0x6;
+			rx_ant = ANT_BC;
 	} else {
 		IWL_WARN(priv, "Invalid scan band count\n");
 		goto done;
···
 	scan->tx_cmd.rate_n_flags = iwl_hw_set_rate_n_flags(rate, rate_flags);
 
 	/* MIMO is not used here, but value is required */
-	scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK |
-				cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) |
-				(rx_chain << RXON_RX_CHAIN_FORCE_SEL_POS) |
-				(0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS));
+	rx_chain |= ANT_ABC << RXON_RX_CHAIN_VALID_POS;
+	rx_chain |= ANT_ABC << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS;
+	rx_chain |= rx_ant << RXON_RX_CHAIN_FORCE_SEL_POS;
+	rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS;
+	scan->rx_chain = cpu_to_le16(rx_chain);
 	cmd_len = iwl_fill_probe_req(priv,
 				(struct ieee80211_mgmt *)scan->data,
 				priv->scan_request->ie,

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

···
 	iwl_release_nic_access(priv);
 }
 
-static void iwl3945_error_recovery(struct iwl_priv *priv)
-{
-	unsigned long flags;
-
-	memcpy(&priv->staging_rxon, &priv->recovery_rxon,
-	       sizeof(priv->staging_rxon));
-	priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-	iwlcore_commit_rxon(priv);
-
-	priv->cfg->ops->smgmt->add_station(priv, priv->bssid, 1, 0, NULL);
-
-	spin_lock_irqsave(&priv->lock, flags);
-	priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
-	priv->error_recovering = 0;
-	spin_unlock_irqrestore(&priv->lock, flags);
-}
-
 static void iwl3945_irq_tasklet(struct iwl_priv *priv)
 {
 	u32 inta, handled = 0;
···
 	/* After the ALIVE response, we can send commands to 3945 uCode */
 	set_bit(STATUS_ALIVE, &priv->status);
 
-	/* Clear out the uCode error bit if it is set */
-	clear_bit(STATUS_FW_ERROR, &priv->status);
-
 	if (iwl_is_rfkill(priv))
 		return;
 
···
 	IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
 	set_bit(STATUS_READY, &priv->status);
 	wake_up_interruptible(&priv->wait_command_queue);
-
-	if (priv->error_recovering)
-		iwl3945_error_recovery(priv);
 
 	/* reassociate for ADHOC mode */
 	if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) {
···
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
 		return;
 
-	iwl3945_down(priv);
-	queue_work(priv->workqueue, &priv->up);
+	if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
+		mutex_lock(&priv->mutex);
+		priv->vif = NULL;
+		priv->is_open = 0;
+		mutex_unlock(&priv->mutex);
+		iwl3945_down(priv);
+		ieee80211_restart_hw(priv->hw);
+	} else {
+		iwl3945_down(priv);
+		queue_work(priv->workqueue, &priv->up);
+	}
 }
 
 static void iwl3945_bg_rx_replenish(struct work_struct *data)
···
 {
 	struct iwl_priv *priv = dev_get_drvdata(d);
 	int mode = priv->power_data.user_power_setting;
-	int system = priv->power_data.system_power_setting;
 	int level = priv->power_data.power_mode;
 	char *p = buf;
 
-	switch (system) {
-	case IWL_POWER_SYS_AUTO:
-		p += sprintf(p, "SYSTEM:auto");
-		break;
-	case IWL_POWER_SYS_AC:
-		p += sprintf(p, "SYSTEM:ac");
-		break;
-	case IWL_POWER_SYS_BATTERY:
-		p += sprintf(p, "SYSTEM:battery");
-		break;
-	}
-
-	p += sprintf(p, "\tMODE:%s", (mode < IWL_POWER_AUTO) ?
-			"fixed" : "auto");
-	p += sprintf(p, "\tINDEX:%d", level);
-	p += sprintf(p, "\n");
+	p += sprintf(p, "INDEX:%d\t", level);
+	p += sprintf(p, "USER:%d\n", mode);
 	return p - buf + 1;
 }
 
···
 	priv->ibss_beacon = NULL;
 
 	spin_lock_init(&priv->lock);
-	spin_lock_init(&priv->power_data.lock);
 	spin_lock_init(&priv->sta_lock);
 	spin_lock_init(&priv->hcmd_lock);
 

drivers/net/wireless/mac80211_hwsim.c

···
 	if (changed & BSS_CHANGED_HT) {
 		printk(KERN_DEBUG "  %s: HT: op_mode=0x%x\n",
 		       wiphy_name(hw->wiphy),
-		       info->ht.operation_mode);
+		       info->ht_operation_mode);
 	}
 
 	if (changed & BSS_CHANGED_BASIC_RATES) {

drivers/net/wireless/mwl8k.c

···
 	if (info->use_cts_prot) {
 		prot_mode = MWL8K_FRAME_PROT_11G;
 	} else {
-		switch (info->ht.operation_mode &
+		switch (info->ht_operation_mode &
 			IEEE80211_HT_OP_MODE_PROTECTION) {
 		case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
 			prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY;

drivers/net/wireless/rt2x00/rt73usb.c

···
 	rt2x00_set_chip(rt2x00dev, RT2571, value, reg);
 
 	if (!rt2x00_check_rev(&rt2x00dev->chip, 0x000ffff0, 0x25730) ||
-	    !rt2x00_check_rev(&rt2x00dev->chip, 0x0000000f, 0)) {
+	    rt2x00_check_rev(&rt2x00dev->chip, 0x0000000f, 0)) {
 		ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
 		return -ENODEV;
 	}

drivers/net/wireless/wl12xx/Kconfig

···
 config WL12XX
 	tristate "TI wl1251/wl1271 support"
-	depends on MAC80211 && WLAN_80211 && SPI_MASTER && EXPERIMENTAL
+	depends on MAC80211 && WLAN_80211 && SPI_MASTER && GENERIC_HARDIRQS && EXPERIMENTAL
 	select FW_LOADER
 	select CRC7
 	---help---

include/linux/ieee80211.h

···
 	WLAN_CATEGORY_DLS = 2,
 	WLAN_CATEGORY_BACK = 3,
 	WLAN_CATEGORY_PUBLIC = 4,
+	WLAN_CATEGORY_HT = 7,
 	WLAN_CATEGORY_SA_QUERY = 8,
+	WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
 	WLAN_CATEGORY_WMM = 17,
+	WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
+	WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
 };
 
 /* SPECTRUM_MGMT action code */
···
 		if (ieee80211_has_protected(hdr->frame_control))
 			return true;
 		category = ((u8 *) hdr) + 24;
-		return *category != WLAN_CATEGORY_PUBLIC;
+		return *category != WLAN_CATEGORY_PUBLIC &&
+			*category != WLAN_CATEGORY_HT &&
+			*category != WLAN_CATEGORY_VENDOR_SPECIFIC;
 	}
 
 	return false;

include/linux/nl80211.h

···
  *
  */
 
+#include <linux/types.h>
+
 /**
  * DOC: Station handling
  *
···
  * @NL80211_CMD_SET_KEY: Set key attributes %NL80211_ATTR_KEY_DEFAULT,
  *	%NL80211_ATTR_KEY_DEFAULT_MGMT, or %NL80211_ATTR_KEY_THRESHOLD.
  * @NL80211_CMD_NEW_KEY: add a key with given %NL80211_ATTR_KEY_DATA,
- *	%NL80211_ATTR_KEY_IDX, %NL80211_ATTR_MAC and %NL80211_ATTR_KEY_CIPHER
- *	attributes.
+ *	%NL80211_ATTR_KEY_IDX, %NL80211_ATTR_MAC, %NL80211_ATTR_KEY_CIPHER,
+ *	and %NL80211_ATTR_KEY_SEQ attributes.
  * @NL80211_CMD_DEL_KEY: delete a key identified by %NL80211_ATTR_KEY_IDX
  *	or %NL80211_ATTR_MAC.
  *
···
  *
  * @NL80211_ATTR_STA_AID: Association ID for the station (u16)
  * @NL80211_ATTR_STA_FLAGS: flags, nested element with NLA_FLAG attributes of
- *	&enum nl80211_sta_flags.
+ *	&enum nl80211_sta_flags (deprecated, use %NL80211_ATTR_STA_FLAGS2)
  * @NL80211_ATTR_STA_LISTEN_INTERVAL: listen interval as defined by
  *	IEEE 802.11 7.3.1.6 (u16).
  * @NL80211_ATTR_STA_SUPPORTED_RATES: supported rates, array of supported
···
  * @NL80211_ATTR_TIMED_OUT: a flag indicating than an operation timed out; this
  *	is used, e.g., with %NL80211_CMD_AUTHENTICATE event
  *
+ * @NL80211_ATTR_USE_MFP: Whether management frame protection (IEEE 802.11w) is
+ *	used for the association (&enum nl80211_mfp, represented as a u32);
+ *	this attribute can be used
+ *	with %NL80211_CMD_ASSOCIATE request
+ *
+ * @NL80211_ATTR_STA_FLAGS2: Attribute containing a
+ *	&struct nl80211_sta_flag_update.
+ *
+ * @NL80211_ATTR_CONTROL_PORT: A flag indicating whether user space controls
+ *	IEEE 802.1X port, i.e., sets/clears %NL80211_STA_FLAG_AUTHORIZED, in
+ *	station mode. If the flag is included in %NL80211_CMD_ASSOCIATE
+ *	request, the driver will assume that the port is unauthorized until
+ *	authorized by user space. Otherwise, port is marked authorized by
+ *	default in station mode.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
···
 
 	NL80211_ATTR_TIMED_OUT,
 
+	NL80211_ATTR_USE_MFP,
+
+	NL80211_ATTR_STA_FLAGS2,
+
+	NL80211_ATTR_CONTROL_PORT,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
···
 	__NL80211_STA_FLAG_AFTER_LAST,
 	NL80211_STA_FLAG_MAX = __NL80211_STA_FLAG_AFTER_LAST - 1
 };
+
+/**
+ * struct nl80211_sta_flag_update - station flags mask/set
+ * @mask: mask of station flags to set
+ * @set: which values to set them to
+ *
+ * Both mask and set contain bits as per &enum nl80211_sta_flags.
+ */
+struct nl80211_sta_flag_update {
+	__u32 mask;
+	__u32 set;
+} __attribute__((packed));
 
 /**
  * enum nl80211_rate_info - bitrate information
···
 	NL80211_KEYTYPE_GROUP,
 	NL80211_KEYTYPE_PAIRWISE,
 	NL80211_KEYTYPE_PEERKEY,
+};
+
+/**
+ * enum nl80211_mfp - Management frame protection state
+ * @NL80211_MFP_NO: Management frame protection not used
+ * @NL80211_MFP_REQUIRED: Management frame protection required
+ */
+enum nl80211_mfp {
+	NL80211_MFP_NO,
+	NL80211_MFP_REQUIRED,
 };
 
 #endif /* __LINUX_NL80211_H */

include/net/cfg80211.h

···
 };
 
 /**
- * enum station_flags - station flags
- *
- * Station capability flags. Note that these must be the bits
- * according to the nl80211 flags.
- *
- * @STATION_FLAG_CHANGED: station flags were changed
- * @STATION_FLAG_AUTHORIZED: station is authorized to send frames (802.1X)
- * @STATION_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
- *	with short preambles
- * @STATION_FLAG_WME: station is WME/QoS capable
- * @STATION_FLAG_MFP: station uses management frame protection
- */
-enum station_flags {
-	STATION_FLAG_CHANGED		= 1<<0,
-	STATION_FLAG_AUTHORIZED		= 1<<NL80211_STA_FLAG_AUTHORIZED,
-	STATION_FLAG_SHORT_PREAMBLE	= 1<<NL80211_STA_FLAG_SHORT_PREAMBLE,
-	STATION_FLAG_WME		= 1<<NL80211_STA_FLAG_WME,
-	STATION_FLAG_MFP		= 1<<NL80211_STA_FLAG_MFP,
-};
-
-/**
  * enum plink_action - actions to perform in mesh peers
  *
  * @PLINK_ACTION_INVALID: action 0 is reserved
···
  * @supported_rates: supported rates in IEEE 802.11 format
  *	(or NULL for no change)
  * @supported_rates_len: number of supported rates
- * @station_flags: station flags (see &enum station_flags)
+ * @sta_flags_mask: station flags that changed
+ *	(bitmask of BIT(NL80211_STA_FLAG_...))
+ * @sta_flags_set: station flags values
+ *	(bitmask of BIT(NL80211_STA_FLAG_...))
  * @listen_interval: listen interval or -1 for no change
  * @aid: AID or zero for no change
  */
 struct station_parameters {
 	u8 *supported_rates;
 	struct net_device *vlan;
-	u32 station_flags;
+	u32 sta_flags_mask, sta_flags_set;
 	int listen_interval;
 	u16 aid;
 	u8 supported_rates_len;
···
  * @ssid_len: Length of ssid in octets
  * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
  * @ie_len: Length of ie buffer in octets
+ * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
+ * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
+ *	sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
+ *	required to assume that the port is unauthorized until authorized by
+ *	user space. Otherwise, port is marked authorized by default.
  */
 struct cfg80211_assoc_request {
 	struct ieee80211_channel *chan;
···
 	size_t ssid_len;
 	const u8 *ie;
 	size_t ie_len;
+	bool use_mfp;
+	bool control_port;
 };
 
 /**
···
 				       struct vif_params *params);
 
 	int	(*add_key)(struct wiphy *wiphy, struct net_device *netdev,
-			   u8 key_index, u8 *mac_addr,
+			   u8 key_index, const u8 *mac_addr,
 			   struct key_params *params);
 	int	(*get_key)(struct wiphy *wiphy, struct net_device *netdev,
-			   u8 key_index, u8 *mac_addr, void *cookie,
+			   u8 key_index, const u8 *mac_addr, void *cookie,
 			   void (*callback)(void *cookie, struct key_params*));
 	int	(*del_key)(struct wiphy *wiphy, struct net_device *netdev,
-			   u8 key_index, u8 *mac_addr);
+			   u8 key_index, const u8 *mac_addr);
 	int	(*set_default_key)(struct wiphy *wiphy,
 				   struct net_device *netdev,
 				   u8 key_index);
···
 
 #ifdef CONFIG_WIRELESS_EXT
 	/* wext data */
-	struct cfg80211_ibss_params wext;
-	u8 wext_bssid[ETH_ALEN];
+	struct {
+		struct cfg80211_ibss_params ibss;
+		u8 bssid[ETH_ALEN];
+		s8 default_key, default_mgmt_key;
+	} wext;
 #endif
 };
 
···
 int cfg80211_wext_giwretry(struct net_device *dev,
 			   struct iw_request_info *info,
 			   struct iw_param *retry, char *extra);
+int cfg80211_wext_siwencodeext(struct net_device *dev,
+			       struct iw_request_info *info,
+			       struct iw_point *erq, char *extra);
+int cfg80211_wext_siwencode(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_point *erq, char *keybuf);
+int cfg80211_wext_giwencode(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_point *erq, char *keybuf);
 
 /*
  * callbacks for asynchronous cfg80211 methods, notification

include/net/mac80211.h

···
  */
 
 /**
- * struct ieee80211_ht_bss_info - describing BSS's HT characteristics
- *
- * This structure describes most essential parameters needed
- * to describe 802.11n HT characteristics in a BSS.
- *
- * @primary_channel: channel number of primery channel
- * @bss_cap: 802.11n's general BSS capabilities (e.g. channel width)
- * @bss_op_mode: 802.11n's BSS operation modes (e.g. HT protection)
- */
-struct ieee80211_ht_bss_info {
-	u8 primary_channel;
-	u8 bss_cap;  /* use IEEE80211_HT_IE_CHA_ */
-	u8 bss_op_mode; /* use IEEE80211_HT_IE_ */
-};
-
-/**
  * enum ieee80211_max_queues - maximum number of queues
  *
  * @IEEE80211_MAX_QUEUES: Maximum number of regular device queues.
···
 };
 
 /**
- * struct ieee80211_bss_ht_conf - BSS's changing HT configuration
- * @operation_mode: HT operation mode (like in &struct ieee80211_ht_info)
- */
-struct ieee80211_bss_ht_conf {
-	u16 operation_mode;
-};
-
-/**
  * struct ieee80211_bss_conf - holds the BSS's changing parameters
  *
  * This structure keeps information about a BSS (and an association
···
  *	the current band.
  * @bssid: The BSSID for this BSS
  * @enable_beacon: whether beaconing should be enabled or not
+ * @ht_operation_mode: HT operation mode (like in &struct ieee80211_ht_info).
+ *	This field is only valid when the channel type is one of the HT types.
  */
 struct ieee80211_bss_conf {
 	const u8 *bssid;
···
 	u16 assoc_capability;
 	u64 timestamp;
 	u32 basic_rates;
-	struct ieee80211_bss_ht_conf ht;
+	u16 ht_operation_mode;
 };
 
 /**

net/mac80211/cfg.c

···
 }
 
 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
-			     u8 key_idx, u8 *mac_addr,
+			     u8 key_idx, const u8 *mac_addr,
 			     struct key_params *params)
 {
 	struct ieee80211_sub_if_data *sdata;
···
 		return -EINVAL;
 	}
 
-	key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key);
+	key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
+				  params->seq_len, params->seq);
 	if (!key)
 		return -ENOMEM;
 
···
 }
 
 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
-			     u8 key_idx, u8 *mac_addr)
+			     u8 key_idx, const u8 *mac_addr)
 {
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
···
 }
 
 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
-			     u8 key_idx, u8 *mac_addr, void *cookie,
+			     u8 key_idx, const u8 *mac_addr, void *cookie,
 			     void (*callback)(void *cookie,
 					      struct key_params *params))
 {
···
 	int i, j;
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	u32 mask, set;
 
 	sband = local->hw.wiphy->bands[local->oper_channel->band];
 
-	/*
-	 * FIXME: updating the flags is racy when this function is
-	 *	  called from ieee80211_change_station(), this will
-	 *	  be resolved in a future patch.
-	 */
+	spin_lock_bh(&sta->lock);
+	mask = params->sta_flags_mask;
+	set = params->sta_flags_set;
 
-	if (params->station_flags & STATION_FLAG_CHANGED) {
-		spin_lock_bh(&sta->lock);
+	if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 		sta->flags &= ~WLAN_STA_AUTHORIZED;
-		if (params->station_flags & STATION_FLAG_AUTHORIZED)
+		if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 			sta->flags |= WLAN_STA_AUTHORIZED;
-
-		sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
-		if (params->station_flags & STATION_FLAG_SHORT_PREAMBLE)
-			sta->flags |= WLAN_STA_SHORT_PREAMBLE;
-
-		sta->flags &= ~WLAN_STA_WME;
-		if (params->station_flags & STATION_FLAG_WME)
-			sta->flags |= WLAN_STA_WME;
-
-		sta->flags &= ~WLAN_STA_MFP;
-		if (params->station_flags & STATION_FLAG_MFP)
-			sta->flags |= WLAN_STA_MFP;
-		spin_unlock_bh(&sta->lock);
 	}
+
+	if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
+		sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
+		if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
+			sta->flags |= WLAN_STA_SHORT_PREAMBLE;
+	}
+
+	if (mask & BIT(NL80211_STA_FLAG_WME)) {
+		sta->flags &= ~WLAN_STA_WME;
+		if (set & BIT(NL80211_STA_FLAG_WME))
+			sta->flags |= WLAN_STA_WME;
+	}
+
+	if (mask & BIT(NL80211_STA_FLAG_MFP)) {
+		sta->flags &= ~WLAN_STA_MFP;
+		if (set & BIT(NL80211_STA_FLAG_MFP))
+			sta->flags |= WLAN_STA_MFP;
+	}
+	spin_unlock_bh(&sta->lock);
 
 	/*
 	 * FIXME: updating the following information is racy when this
···
 	ret = ieee80211_sta_set_extra_ie(sdata, req->ie, req->ie_len);
 	if (ret)
 		return ret;
+
+	if (req->use_mfp) {
+		sdata->u.mgd.mfp = IEEE80211_MFP_REQUIRED;
+		sdata->u.mgd.flags |= IEEE80211_STA_MFP_ENABLED;
+	} else {
+		sdata->u.mgd.mfp = IEEE80211_MFP_DISABLED;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_MFP_ENABLED;
+	}
+
+	if (req->control_port)
+		sdata->u.mgd.flags |= IEEE80211_STA_CONTROL_PORT;
+	else
+		sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
 
 	sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME;
 	sdata->u.mgd.state = IEEE80211_STA_MLME_ASSOCIATE;

net/mac80211/debugfs.c

···
 	.open = mac80211_open_file_generic,
 };
 
+static ssize_t noack_read(struct file *file, char __user *user_buf,
+			  size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	int res;
+	char buf[10];
+
+	res = scnprintf(buf, sizeof(buf), "%d\n", local->wifi_wme_noack_test);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+}
+
+static ssize_t noack_write(struct file *file,
+			   const char __user *user_buf,
+			   size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	char buf[10];
+	size_t len;
+
+	len = min(count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, len))
+		return -EFAULT;
+	buf[len] = '\0';
+
+	local->wifi_wme_noack_test = !!simple_strtoul(buf, NULL, 0);
+
+	return count;
+}
+
+static const struct file_operations noack_ops = {
+	.read = noack_read,
+	.write = noack_write,
+	.open = mac80211_open_file_generic
+};
+
 /* statistics stuff */
 
 #define DEBUGFS_STATS_FILE(name, buflen, fmt, value...)			\
···
 	DEBUGFS_ADD(wep_iv);
 	DEBUGFS_ADD(tsf);
 	DEBUGFS_ADD_MODE(reset, 0200);
+	DEBUGFS_ADD(noack);
 
 	statsd = debugfs_create_dir("statistics", phyd);
 	local->debugfs.statistics = statsd;
···
 	DEBUGFS_DEL(wep_iv);
 	DEBUGFS_DEL(tsf);
 	DEBUGFS_DEL(reset);
+	DEBUGFS_DEL(noack);
 
 	DEBUGFS_STATS_DEL(transmitted_fragment_count);
 	DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);

net/mac80211/ibss.c

···
 static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 				      const u8 *bssid, const int beacon_int,
 				      struct ieee80211_channel *chan,
-				      const size_t supp_rates_len,
-				      const u8 *supp_rates,
+				      const u32 basic_rates,
 				      const u16 capability, u64 tsf)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
-	int rates, i, j;
+	int rates, i;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
 	u8 *pos;
 	struct ieee80211_supported_band *sband;
 	u32 bss_change;
-
+	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
 
 	/* Reset own TSF to allow time synchronization work. */
 	drv_reset_tsf(local);
···
 
 	sband = local->hw.wiphy->bands[chan->band];
 
+	/* build supported rates array */
+	pos = supp_rates;
+	for (i = 0; i < sband->n_bitrates; i++) {
+		int rate = sband->bitrates[i].bitrate;
+		u8 basic = 0;
+		if (basic_rates & BIT(i))
+			basic = 0x80;
+		*pos++ = basic | (u8) (rate / 5);
+	}
+
 	/* Build IBSS probe response */
 	mgmt = (void *) skb_put(skb, 24 + sizeof(mgmt->u.beacon));
 	memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
···
 	*pos++ = ifibss->ssid_len;
 	memcpy(pos, ifibss->ssid, ifibss->ssid_len);
 
-	rates = supp_rates_len;
+	rates = sband->n_bitrates;
 	if (rates > 8)
 		rates = 8;
 	pos = skb_put(skb, 2 + rates);
···
 	*pos++ = 0;
 	*pos++ = 0;
 
-	if (supp_rates_len > 8) {
-		rates = supp_rates_len - 8;
+	if (sband->n_bitrates > 8) {
+		rates = sband->n_bitrates - 8;
 		pos = skb_put(skb, 2 + rates);
 		*pos++ = WLAN_EID_EXT_SUPP_RATES;
 		*pos++ = rates;
···
 	bss_change |= BSS_CHANGED_BEACON_ENABLED;
 	ieee80211_bss_info_change_notify(sdata, bss_change);
 
-	rates = 0;
-	for (i = 0; i < supp_rates_len; i++) {
-		int bitrate = (supp_rates[i] & 0x7f) * 5;
-		for (j = 0; j < sband->n_bitrates; j++)
-			if (sband->bitrates[j].bitrate == bitrate)
-				rates |= BIT(j);
-	}
-
-	ieee80211_sta_def_wmm_params(sdata, supp_rates_len, supp_rates);
+	ieee80211_sta_def_wmm_params(sdata, sband->n_bitrates, supp_rates);
 
 	ifibss->state = IEEE80211_IBSS_MLME_JOINED;
 	mod_timer(&ifibss->timer,
···
 static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_bss *bss)
 {
+	struct ieee80211_supported_band *sband;
+	u32 basic_rates;
+	int i, j;
 	u16 beacon_int = bss->cbss.beacon_interval;
 
 	if (beacon_int < 10)
 		beacon_int = 10;
 
+	sband = sdata->local->hw.wiphy->bands[bss->cbss.channel->band];
+
+	basic_rates = 0;
+
+	for (i = 0; i < bss->supp_rates_len; i++) {
+		int rate = (bss->supp_rates[i] & 0x7f) * 5;
+		bool is_basic = !!(bss->supp_rates[i] & 0x80);
+
+		for (j = 0; j < sband->n_bitrates; j++) {
+			if (sband->bitrates[j].bitrate == rate) {
+				if (is_basic)
+					basic_rates |= BIT(j);
+				break;
+			}
+		}
+	}
+
 	__ieee80211_sta_join_ibss(sdata, bss->cbss.bssid,
 				  beacon_int,
 				  bss->cbss.channel,
-				  bss->supp_rates_len, bss->supp_rates,
+				  basic_rates,
 				  bss->cbss.capability,
 				  bss->cbss.tsf);
 }
···
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
-	u8 *pos;
 	u8 bssid[ETH_ALEN];
-	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
 	u16 capability;
 	int i;
 
···
 	else
 		sdata->drop_unencrypted = 0;
 
-	pos = supp_rates;
-	for (i = 0; i < sband->n_bitrates; i++) {
-		int rate = sband->bitrates[i].bitrate;
-		*pos++ = (u8) (rate / 5);
-	}
-
 	__ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int,
-				  ifibss->channel, sband->n_bitrates,
-				  supp_rates, capability, 0);
+				  ifibss->channel, 3, /* first two are basic */
+				  capability, 0);
 }
 
 static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
···
 	struct ieee80211_channel *chan = NULL;
 	const u8 *bssid = NULL;
 	int active_ibss;
+	u16 capability;
 
 	active_ibss = ieee80211_sta_active_ibss(sdata);
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
···
 	if (active_ibss)
 		return;
 
+	capability = WLAN_CAPABILITY_IBSS;
+	if (sdata->default_key)
+		capability |= WLAN_CAPABILITY_PRIVACY;
+
 	if (ifibss->fixed_bssid)
 		bssid = ifibss->bssid;
 	if (ifibss->fixed_channel)
···
 		bssid = ifibss->bssid;
 	bss = (void *)cfg80211_get_bss(local->hw.wiphy, chan, bssid,
 				       ifibss->ssid, ifibss->ssid_len,
-				       WLAN_CAPABILITY_IBSS,
-				       WLAN_CAPABILITY_IBSS);
+				       capability,
+				       WLAN_CAPABILITY_IBSS |
+				       WLAN_CAPABILITY_PRIVACY);
 
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 	if (bss)

net/mac80211/ieee80211_i.h

···
 #define IEEE80211_STA_ASSOCIATED	BIT(4)
 #define IEEE80211_STA_PROBEREQ_POLL	BIT(5)
 #define IEEE80211_STA_CREATE_IBSS	BIT(6)
-/* hole at 7, please re-use */
+#define IEEE80211_STA_CONTROL_PORT	BIT(7)
 #define IEEE80211_STA_WMM_ENABLED	BIT(8)
 /* hole at 9, please re-use */
 #define IEEE80211_STA_AUTO_SSID_SEL	BIT(10)
···
 	unsigned int flags;
 
 	int drop_unencrypted;
+
+	/*
+	 * keep track of whether the HT opmode (stored in
+	 * vif.bss_info.ht_operation_mode) is valid.
+	 */
+	bool ht_opmode_valid;
 
 	/* Fragment table for host-based reassembly */
 	struct ieee80211_fragment_entry	fragments[IEEE80211_FRAGMENT_MAX];
···
 		struct dentry *wep_iv;
 		struct dentry *tsf;
 		struct dentry *reset;
+		struct dentry *noack;
 		struct dentry *statistics;
 		struct local_debugfsdentries_statsdentries {
 			struct dentry *transmitted_fragment_count;

net/mac80211/iface.c

···
 	mutex_lock(&local->iflist_mtx);
 	chg = __ieee80211_recalc_idle(local);
 	mutex_unlock(&local->iflist_mtx);
-	ieee80211_hw_config(local, chg);
+	if (chg)
+		ieee80211_hw_config(local, chg);
 }

net/mac80211/key.c

···
 struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
 					  int idx,
 					  size_t key_len,
-					  const u8 *key_data)
+					  const u8 *key_data,
+					  size_t seq_len, const u8 *seq)
 {
 	struct ieee80211_key *key;
+	int i, j;
 
 	BUG_ON(idx < 0 || idx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS);
 
···
 	case ALG_TKIP:
 		key->conf.iv_len = TKIP_IV_LEN;
 		key->conf.icv_len = TKIP_ICV_LEN;
+		if (seq && seq_len == 6) {
+			for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
+				key->u.tkip.rx[i].iv32 =
+					get_unaligned_le32(&seq[2]);
+				key->u.tkip.rx[i].iv16 =
+					get_unaligned_le16(seq);
+			}
+		}
 		break;
 	case ALG_CCMP:
 		key->conf.iv_len = CCMP_HDR_LEN;
 		key->conf.icv_len = CCMP_MIC_LEN;
+		if (seq && seq_len == CCMP_PN_LEN) {
+			for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+				for (j = 0; j < CCMP_PN_LEN; j++)
+					key->u.ccmp.rx_pn[i][j] =
+						seq[CCMP_PN_LEN - j - 1];
+		}
 		break;
 	case ALG_AES_CMAC:
 		key->conf.iv_len = 0;
 		key->conf.icv_len = sizeof(struct ieee80211_mmie);
+		if (seq && seq_len == 6)
+			for (j = 0; j < 6; j++)
+				key->u.aes_cmac.rx_pn[j] = seq[6 - j - 1];
 		break;
 	}
 	memcpy(key->conf.key, key_data, key_len);

net/mac80211/key.h

···
 struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
 					  int idx,
 					  size_t key_len,
-					  const u8 *key_data);
+					  const u8 *key_data,
+					  size_t seq_len, const u8 *seq);
 /*
  * Insert a key into data structures (sdata, sta if necessary)
  * to make it used, free old key.

net/mac80211/main.c

···
 
 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 {
-	struct ieee80211_channel *chan;
+	struct ieee80211_channel *chan, *scan_chan;
 	int ret = 0;
 	int power;
 	enum nl80211_channel_type channel_type;
 
 	might_sleep();
 
-	if (local->sw_scanning) {
-		chan = local->scan_channel;
+	scan_chan = local->scan_channel;
+
+	if (scan_chan) {
+		chan = scan_chan;
 		channel_type = NL80211_CHAN_NO_HT;
 	} else {
 		chan = local->oper_channel;
···
 		changed |= IEEE80211_CONF_CHANGE_CHANNEL;
 	}
 
-	if (local->sw_scanning)
+	if (scan_chan)
 		power = chan->max_power;
 	else
 		power = local->power_constr_level ?
···
 		if (!local->oper_channel) {
 			/* init channel we're on */
 			local->hw.conf.channel =
-			local->oper_channel =
-			local->scan_channel = &sband->channels[0];
+			local->oper_channel = &sband->channels[0];
+			local->hw.conf.channel_type = NL80211_CHAN_NO_HT;
 		}
 		channels += sband->n_channels;
 

net/mac80211/mlme.c

···
 #define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
 #define IEEE80211_ASSOC_MAX_TRIES 3
 #define IEEE80211_MONITORING_INTERVAL (2 * HZ)
+#define IEEE80211_PROBE_WAIT (HZ / 20)
 #define IEEE80211_PROBE_IDLE_TIME (60 * HZ)
 #define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
 
···
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-	struct ieee80211_bss_ht_conf ht;
 	struct sta_info *sta;
 	u32 changed = 0;
+	u16 ht_opmode;
 	bool enable_ht = true, ht_changed;
 	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
 
 	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-	memset(&ht, 0, sizeof(ht));
 
 	/* HT is not supported */
 	if (!sband->ht_cap.ht_supported)
···
 						 IEEE80211_RC_HT_CHANGED);
 
 		rcu_read_unlock();
-
         }
 
 	/* disable HT */
 	if (!enable_ht)
 		return 0;
 
-	ht.operation_mode = le16_to_cpu(hti->operation_mode);
+	ht_opmode = le16_to_cpu(hti->operation_mode);
 
 	/* if bss configuration changed store the new one */
-	if (memcmp(&sdata->vif.bss_conf.ht, &ht, sizeof(ht))) {
+	if (!sdata->ht_opmode_valid ||
+	    sdata->vif.bss_conf.ht_operation_mode != ht_opmode) {
 		changed |= BSS_CHANGED_HT;
-		sdata->vif.bss_conf.ht = ht;
+		sdata->vif.bss_conf.ht_operation_mode = ht_opmode;
+		sdata->ht_opmode_valid = true;
 	}
 
 	return changed;
···
 
 	rcu_read_unlock();
 
+	ieee80211_set_wmm_default(sdata);
+
 	ieee80211_recalc_idle(local);
 
 	/* channel(_type) changes are handled by ieee80211_hw_config */
 	local->oper_channel_type = NL80211_CHAN_NO_HT;
+
+	/* on the next assoc, re-program HT parameters */
+	sdata->ht_opmode_valid = false;
 
 	local->power_constr_level = 0;
 
···
 			     u.mgd.beacon_loss_work);
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
+	/*
+	 * The driver has already reported this event and we have
+	 * already sent a probe request. Maybe the AP died and the
+	 * driver keeps reporting until we disassociate... We have
+	 * to ignore that because otherwise we would continually
+	 * reset the timer and never check whether we received a
+	 * probe response!
+	 */
+	if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL)
+		return;
+
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 	if (net_ratelimit()) {
 		printk(KERN_DEBUG "%s: driver reports beacon loss from AP %pM "
···
 	ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
 				 ifmgd->ssid_len, NULL, 0);
 
-	mod_timer(&ifmgd->timer, jiffies + IEEE80211_MONITORING_INTERVAL);
+	mod_timer(&ifmgd->timer, jiffies + IEEE80211_PROBE_WAIT);
 }
 
 void ieee80211_beacon_loss(struct ieee80211_vif *vif)
···
 	}
 
 	if ((ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) &&
-	    time_after(jiffies, sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
+	    time_after(jiffies, sta->last_rx + IEEE80211_PROBE_WAIT)) {
 		printk(KERN_DEBUG "%s: no probe response from AP %pM "
 		       "- disassociating\n",
 		       sdata->dev->name, ifmgd->bssid);
···
 	 *	  to between the sta_info_alloc() and sta_info_insert() above.
 	 */
 
-	set_sta_flags(sta, WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP |
-			   WLAN_STA_AUTHORIZED);
+	set_sta_flags(sta, WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP);
+	if (!(ifmgd->flags & IEEE80211_STA_CONTROL_PORT))
+		set_sta_flags(sta, WLAN_STA_AUTHORIZED);
 
 	rates = 0;
 	basic_rates = 0;
···
 	if (elems.wmm_param)
 		ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
 					 elems.wmm_param_len);
+	else
+		ieee80211_set_wmm_default(sdata);
 
 	if (elems.ht_info_elem && elems.wmm_param &&
 	    (ifmgd->flags & IEEE80211_STA_WMM_ENABLED) &&

net/mac80211/rx.c

···
 	 * possible.
 	 */
 
-	if (!ieee80211_has_protected(hdr->frame_control)) {
-		if (!ieee80211_is_mgmt(hdr->frame_control) ||
-		    rx->sta == NULL || !test_sta_flags(rx->sta, WLAN_STA_MFP))
-			return RX_CONTINUE;
-		mmie_keyidx = ieee80211_get_mmie_keyidx(rx->skb);
-		if (mmie_keyidx < 0)
-			return RX_CONTINUE;
-	}
-
 	/*
 	 * No point in finding a key and decrypting if the frame is neither
 	 * addressed to us nor a multicast frame.
···
 	if (rx->sta)
 		stakey = rcu_dereference(rx->sta->key);
 
+	if (!ieee80211_has_protected(hdr->frame_control))
+		mmie_keyidx = ieee80211_get_mmie_keyidx(rx->skb);
+
 	if (!is_multicast_ether_addr(hdr->addr1) && stakey) {
 		rx->key = stakey;
+		/* Skip decryption if the frame is not protected. */
+		if (!ieee80211_has_protected(hdr->frame_control))
+			return RX_CONTINUE;
 	} else if (mmie_keyidx >= 0) {
 		/* Broadcast/multicast robust management frame / BIP */
 		if ((rx->status->flag & RX_FLAG_DECRYPTED) &&
···
 		    mmie_keyidx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
 			return RX_DROP_MONITOR; /* unexpected BIP keyidx */
 		rx->key = rcu_dereference(rx->sdata->keys[mmie_keyidx]);
+	} else if (!ieee80211_has_protected(hdr->frame_control)) {
+		/*
+		 * The frame was not protected, so skip decryption. However, we
+		 * need to set rx->key if there is a key that could have been
+		 * used so that the frame may be dropped if encryption would
+		 * have been expected.
+		 */
+		struct ieee80211_key *key = NULL;
+		if (ieee80211_is_mgmt(hdr->frame_control) &&
+		    is_multicast_ether_addr(hdr->addr1) &&
+		    (key = rcu_dereference(rx->sdata->default_mgmt_key)))
+			rx->key = key;
+		else if ((key = rcu_dereference(rx->sdata->default_key)))
+			rx->key = key;
+		return RX_CONTINUE;
 	} else {
 		/*
 		 * The device doesn't give us the IV so we won't be
···
 	/* Drop unencrypted frames if key is set. */
 	if (unlikely(!ieee80211_has_protected(fc) &&
 		     !ieee80211_is_nullfunc(fc) &&
-		     (!ieee80211_is_mgmt(fc) ||
-		      (ieee80211_is_unicast_robust_mgmt_frame(rx->skb) &&
-		       rx->sta && test_sta_flags(rx->sta, WLAN_STA_MFP))) &&
+		     ieee80211_is_data(fc) &&
 		     (rx->key || rx->sdata->drop_unencrypted)))
 		return -EACCES;
-	/* BIP does not use Protected field, so need to check MMIE */
-	if (unlikely(rx->sta && test_sta_flags(rx->sta, WLAN_STA_MFP) &&
-		     ieee80211_is_multicast_robust_mgmt_frame(rx->skb) &&
-		     ieee80211_get_mmie_keyidx(rx->skb) < 0 &&
-		     (rx->key || rx->sdata->drop_unencrypted)))
-		return -EACCES;
+	if (rx->sta && test_sta_flags(rx->sta, WLAN_STA_MFP)) {
+		if (unlikely(ieee80211_is_unicast_robust_mgmt_frame(rx->skb) &&
+			     rx->key))
+			return -EACCES;
+		/* BIP does not use Protected field, so need to check MMIE */
+		if (unlikely(ieee80211_is_multicast_robust_mgmt_frame(rx->skb)
+			     && ieee80211_get_mmie_keyidx(rx->skb) < 0 &&
+			     rx->key))
+			return -EACCES;
+		/*
+		 * When using MFP, Action frames are not allowed prior to
+		 * having configured keys.
+		 */
+		if (unlikely(ieee80211_is_action(fc) && !rx->key &&
+			     ieee80211_is_robust_mgmt_frame(
+				     (struct ieee80211_hdr *) rx->skb->data)))
+			return -EACCES;
+	}
 
 	return 0;
 }

net/mac80211/scan.c

···
 	was_hw_scan = local->hw_scanning;
 	local->hw_scanning = false;
 	local->sw_scanning = false;
+	local->scan_channel = NULL;
 
 	/* we only have to protect scan_req and hw/sw scan */
 	mutex_unlock(&local->scan_mtx);
···
 		if (skip)
 			break;
 
-		next_delay = IEEE80211_PROBE_DELAY +
-			     usecs_to_jiffies(local->hw.channel_change_time);
+		/*
+		 * Probe delay is used to update the NAV, cf. 11.1.3.2.2
+		 * (which unfortunately doesn't say _why_ step a) is done,
+		 * but it waits for the probe delay or until a frame is
+		 * received - and the received frame would update the NAV).
+		 * For now, we do not support waiting until a frame is
+		 * received.
+		 *
+		 * In any case, it is not necessary for a passive scan.
+		 */
+		if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
+		    !local->scan_req->n_ssids) {
+			next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
+			break;
+		}
+
+		next_delay = IEEE80211_PROBE_DELAY;
 		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 ||
-		    !local->scan_req->n_ssids)
-			break;
 		for (i = 0; i < local->scan_req->n_ssids; i++)
 			ieee80211_send_probe_req(
 				sdata, NULL,
 				local->scan_req->ssids[i].ssid,
 				local->scan_req->ssids[i].ssid_len,
 				local->scan_req->ie, local->scan_req->ie_len);
+
+		/*
+		 * After sending probe requests, wait for probe responses
+		 * on the channel.
+		 */
 		next_delay = IEEE80211_CHANNEL_TIME;
+		local->scan_state = SCAN_SET_CHANNEL;
 		break;
 	}
 

net/mac80211/tx.c

···
 		info->flags |= IEEE80211_TX_CTL_NO_ACK;
 	} else {
 		tx->flags |= IEEE80211_TX_UNICAST;
-		info->flags &= ~IEEE80211_TX_CTL_NO_ACK;
+		if (unlikely(local->wifi_wme_noack_test))
+			info->flags |= IEEE80211_TX_CTL_NO_ACK;
+		else
+			info->flags &= ~IEEE80211_TX_CTL_NO_ACK;
 	}
 
 	if (tx->flags & IEEE80211_TX_FRAGMENTED) {

net/mac80211/util.c

···
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_tx_queue_params qparam;
-	int i;
+	int queue;
+	bool use_11b;
+	int aCWmin, aCWmax;
 
 	if (!local->ops->conf_tx)
 		return;
 
 	memset(&qparam, 0, sizeof(qparam));
 
-	qparam.aifs = 2;
+	use_11b = (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) &&
+		 !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE);
 
-	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
-	    !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE))
-		qparam.cw_min = 31;
-	else
-		qparam.cw_min = 15;
+	for (queue = 0; queue < local_to_hw(local)->queues; queue++) {
+		/* Set defaults according to 802.11-2007 Table 7-37 */
+		aCWmax = 1023;
+		if (use_11b)
+			aCWmin = 31;
+		else
+			aCWmin = 15;
 
-	qparam.cw_max = 1023;
-	qparam.txop = 0;
+		switch (queue) {
+		case 3: /* AC_BK */
+			qparam.cw_max = aCWmin;
+			qparam.cw_min = aCWmax;
+			qparam.txop = 0;
+			qparam.aifs = 7;
+			break;
+		default: /* never happens but let's not leave undefined */
+		case 2: /* AC_BE */
+			qparam.cw_max = aCWmin;
+			qparam.cw_min = aCWmax;
+			qparam.txop = 0;
+			qparam.aifs = 3;
+			break;
+		case 1: /* AC_VI */
+			qparam.cw_max = aCWmin;
+			qparam.cw_min = (aCWmin + 1) / 2 - 1;
+			if (use_11b)
+				qparam.txop = 6016/32;
+			else
+				qparam.txop = 3008/32;
+			qparam.aifs = 2;
+			break;
+		case 0: /* AC_VO */
+			qparam.cw_max = (aCWmin + 1) / 2 - 1;
+			qparam.cw_min = (aCWmin + 1) / 4 - 1;
+			if (use_11b)
+				qparam.txop = 3264/32;
+			else
+				qparam.txop = 1504/32;
+			qparam.aifs = 2;
+			break;
+		}
 
-	for (i = 0; i < local_to_hw(local)->queues; i++)
-		drv_conf_tx(local, i, &qparam);
+		drv_conf_tx(local, queue, &qparam);
+	}
 }
 
 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,

net/mac80211/wext.c

···
 #include "aes_ccm.h"
 
 
-static int ieee80211_set_encryption(struct ieee80211_sub_if_data *sdata, u8 *sta_addr,
-				    int idx, int alg, int remove,
-				    int set_tx_key, const u8 *_key,
-				    size_t key_len)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct sta_info *sta;
-	struct ieee80211_key *key;
-	int err;
-
-	if (alg == ALG_AES_CMAC) {
-		if (idx < NUM_DEFAULT_KEYS ||
-		    idx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) {
-			printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d "
-			       "(BIP)\n", sdata->dev->name, idx);
-			return -EINVAL;
-		}
-	} else if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
-		printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
-		       sdata->dev->name, idx);
-		return -EINVAL;
-	}
-
-	if (remove) {
-		rcu_read_lock();
-
-		err = 0;
-
-		if (is_broadcast_ether_addr(sta_addr)) {
-			key = sdata->keys[idx];
-		} else {
-			sta = sta_info_get(local, sta_addr);
-			if (!sta) {
-				err = -ENOENT;
-				goto out_unlock;
-			}
-			key = sta->key;
-		}
-
-		ieee80211_key_free(key);
-	} else {
-		key = ieee80211_key_alloc(alg, idx, key_len, _key);
-		if (!key)
-			return -ENOMEM;
-
-		sta = NULL;
-		err = 0;
-
-		rcu_read_lock();
-
-		if (!is_broadcast_ether_addr(sta_addr)) {
-			set_tx_key = 0;
-			/*
-			 * According to the standard, the key index of a
-			 * pairwise key must be zero. However, some AP are
-			 * broken when it comes to WEP key indices, so we
-			 * work around this.
-			 */
-			if (idx != 0 && alg != ALG_WEP) {
-				ieee80211_key_free(key);
-				err = -EINVAL;
-				goto out_unlock;
-			}
-
-			sta = sta_info_get(local, sta_addr);
-			if (!sta) {
-				ieee80211_key_free(key);
-				err = -ENOENT;
-				goto out_unlock;
-			}
-		}
-
-		if (alg == ALG_WEP &&
-			key_len != LEN_WEP40 && key_len != LEN_WEP104) {
-			ieee80211_key_free(key);
-			err = -EINVAL;
-			goto out_unlock;
-		}
-
-		ieee80211_key_link(key, sdata, sta);
-
-		if (set_tx_key || (!sta && !sdata->default_key && key))
-			ieee80211_set_default_key(sdata, idx);
-		if (alg == ALG_AES_CMAC &&
-		    (set_tx_key || (!sta && !sdata->default_mgmt_key && key)))
-			ieee80211_set_default_mgmt_key(sdata, idx);
-	}
-
- out_unlock:
-	rcu_read_unlock();
-
-	return err;
-}
-
 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
 				    struct iw_request_info *info,
 				    struct iw_point *data, char *extra)
···
 			return ret;
 		sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
 		sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
 		ieee80211_sta_req_auth(sdata);
 		return 0;
 	}
···
 			return ret;
 
 		sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
 		ieee80211_sta_req_auth(sdata);
 		return 0;
 	}
···
 		if (ret)
 			return ret;
 		sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
 		ieee80211_sta_req_auth(sdata);
 		return 0;
 	} else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
···
 	data->txpower.disabled = !(local->hw.conf.radio_enabled);
 	data->txpower.value = local->hw.conf.power_level;
 	data->txpower.flags = IW_TXPOW_DBM;
-
-	return 0;
-}
-
-static int ieee80211_ioctl_siwencode(struct net_device *dev,
-				     struct iw_request_info *info,
-				     struct iw_point *erq, char *keybuf)
-{
-	struct ieee80211_sub_if_data *sdata;
-	int idx, i, alg = ALG_WEP;
-	u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
-	int remove = 0, ret;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-	idx = erq->flags & IW_ENCODE_INDEX;
-	if (idx == 0) {
-		if (sdata->default_key)
-			for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
-				if (sdata->default_key == sdata->keys[i]) {
-					idx = i;
-					break;
-				}
-			}
-	} else if (idx < 1 || idx > 4)
-		return -EINVAL;
-	else
-		idx--;
-
-	if (erq->flags & IW_ENCODE_DISABLED)
-		remove = 1;
-	else if (erq->length == 0) {
-		/* No key data - just set the default TX key index */
-		ieee80211_set_default_key(sdata, idx);
-		return 0;
-	}
-
-	ret = ieee80211_set_encryption(
-		sdata, bcaddr,
-		idx, alg, remove,
-		!sdata->default_key,
-		keybuf, erq->length);
-
-	if (!ret && sdata->vif.type == NL80211_IFTYPE_STATION) {
-		if (remove)
-			sdata->u.mgd.flags &= ~IEEE80211_STA_TKIP_WEP_USED;
-		else
-			sdata->u.mgd.flags |= IEEE80211_STA_TKIP_WEP_USED;
-	}
-
-	return ret;
-}
-
-
-static int ieee80211_ioctl_giwencode(struct net_device *dev,
-				     struct iw_request_info *info,
-				     struct iw_point *erq, char *key)
-{
-	struct ieee80211_sub_if_data *sdata;
-	int idx, i;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-	idx = erq->flags & IW_ENCODE_INDEX;
-	if (idx < 1 || idx > 4) {
-		idx = -1;
-		if (!sdata->default_key)
-			idx = 0;
-		else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
-			if (sdata->default_key == sdata->keys[i]) {
-				idx = i;
-				break;
-			}
-		}
-		if (idx < 0)
-			return -EINVAL;
-	} else
-		idx--;
-
-	erq->flags = idx + 1;
-
-	if (!sdata->keys[idx]) {
-		erq->length = 0;
-		erq->flags |= IW_ENCODE_DISABLED;
-		return 0;
-	}
-
-	memcpy(key, sdata->keys[idx]->conf.key,
-	       min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
-	erq->length = sdata->keys[idx]->conf.keylen;
-	erq->flags |= IW_ENCODE_ENABLED;
-
-	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-		switch (sdata->u.mgd.auth_alg) {
-		case WLAN_AUTH_OPEN:
-		case WLAN_AUTH_LEAP:
-			erq->flags |= IW_ENCODE_OPEN;
-			break;
-		case WLAN_AUTH_SHARED_KEY:
-			erq->flags |= IW_ENCODE_RESTRICTED;
-			break;
-		}
-	}
 
 	return 0;
 }
···
 }
 
 
-static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
-					struct iw_request_info *info,
-					struct iw_point *erq, char *extra)
-{
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
-	int uninitialized_var(alg), idx, i, remove = 0;
-
-	switch (ext->alg) {
-	case IW_ENCODE_ALG_NONE:
-		remove = 1;
-		break;
-	case IW_ENCODE_ALG_WEP:
-		alg = ALG_WEP;
-		break;
-	case IW_ENCODE_ALG_TKIP:
-		alg = ALG_TKIP;
-		break;
-	case IW_ENCODE_ALG_CCMP:
-		alg = ALG_CCMP;
-		break;
-	case IW_ENCODE_ALG_AES_CMAC:
-		alg = ALG_AES_CMAC;
-		break;
-	default:
-		return -EOPNOTSUPP;
-	}
-
-	if (erq->flags & IW_ENCODE_DISABLED)
-		remove = 1;
-
-	idx = erq->flags & IW_ENCODE_INDEX;
-	if (alg == ALG_AES_CMAC) {
-		if (idx < NUM_DEFAULT_KEYS + 1 ||
-		    idx > NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) {
-			idx = -1;
-			if (!sdata->default_mgmt_key)
-				idx = 0;
-			else for (i = NUM_DEFAULT_KEYS;
-				  i < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS;
-				  i++) {
-				if (sdata->default_mgmt_key == sdata->keys[i])
-				{
-					idx = i;
-					break;
-				}
-			}
-			if (idx < 0)
-				return -EINVAL;
-		} else
-			idx--;
-	} else {
-		if (idx < 1 || idx > 4) {
-			idx = -1;
-			if (!sdata->default_key)
-				idx = 0;
-			else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
-				if (sdata->default_key == sdata->keys[i]) {
-					idx = i;
-					break;
-				}
-			}
-			if (idx < 0)
-				return -EINVAL;
-		} else
-			idx--;
-	}
-
-	return ieee80211_set_encryption(sdata, ext->addr.sa_data, idx, alg,
-					remove,
-					ext->ext_flags &
-					IW_ENCODE_EXT_SET_TX_KEY,
-					ext->key, ext->key_len);
-}
-
-
 /* Structures to export the Wireless Handlers */
 
 static const iw_handler ieee80211_handler[] =
···
 	(iw_handler) ieee80211_ioctl_giwtxpower,	/* SIOCGIWTXPOW */
 	(iw_handler) cfg80211_wext_siwretry,		/* SIOCSIWRETRY */
 	(iw_handler) cfg80211_wext_giwretry,		/* SIOCGIWRETRY */
-	(iw_handler) ieee80211_ioctl_siwencode,		/* SIOCSIWENCODE */
-	(iw_handler) ieee80211_ioctl_giwencode,		/* SIOCGIWENCODE */
+	(iw_handler) cfg80211_wext_siwencode,		/* SIOCSIWENCODE */
+	(iw_handler) cfg80211_wext_giwencode,		/* SIOCGIWENCODE */
 	(iw_handler) ieee80211_ioctl_siwpower,		/* SIOCSIWPOWER */
 	(iw_handler) ieee80211_ioctl_giwpower,		/* SIOCGIWPOWER */
 	(iw_handler) NULL,				/* -- hole -- */
···
 	(iw_handler) NULL,				/* SIOCGIWGENIE */
 	(iw_handler) ieee80211_ioctl_siwauth,		/* SIOCSIWAUTH */
 	(iw_handler) ieee80211_ioctl_giwauth,		/* SIOCGIWAUTH */
-	(iw_handler) ieee80211_ioctl_siwencodeext,	/* SIOCSIWENCODEEXT */
+	(iw_handler) cfg80211_wext_siwencodeext,	/* SIOCSIWENCODEEXT */
 	(iw_handler) NULL,				/* SIOCGIWENCODEEXT */
 	(iw_handler) NULL,				/* SIOCSIWPMKSA */
 	(iw_handler) NULL,				/* -- hole -- */

net/mac80211/wme.c

···
 		u8 *p = ieee80211_get_qos_ctl(hdr);
 		u8 ack_policy = 0;
 		tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
-		if (local->wifi_wme_noack_test)
+		if (unlikely(local->wifi_wme_noack_test))
 			ack_policy |= QOS_CONTROL_ACK_POLICY_NOACK <<
 					QOS_CONTROL_ACK_POLICY_SHIFT;
 		/* qos header is 2 bytes, second reserved */

net/wireless/core.c

···
 /*
  * This is the linux wireless configuration interface.
  *
- * Copyright 2006-2008		Johannes Berg <[e-mail]>
+ * Copyright 2006-2009		Johannes Berg <[e-mail]>
  */
 
 #include <linux/if.h>
···
 				"symlink to netdev!\n");
 		}
 		dev->ieee80211_ptr->netdev = dev;
+#ifdef CONFIG_WIRELESS_EXT
+		dev->ieee80211_ptr->wext.default_key = -1;
+		dev->ieee80211_ptr->wext.default_mgmt_key = -1;
+#endif
 		mutex_unlock(&rdev->devlist_mtx);
 		break;
 	case NETDEV_GOING_DOWN:
···
 #ifdef CONFIG_WIRELESS_EXT
 		if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
 			break;
-		if (!dev->ieee80211_ptr->wext.ssid_len)
+		if (!dev->ieee80211_ptr->wext.ibss.ssid_len)
 			break;
-		cfg80211_join_ibss(rdev, dev, &dev->ieee80211_ptr->wext);
+		cfg80211_join_ibss(rdev, dev, &dev->ieee80211_ptr->wext.ibss);
 		break;
 #endif
 	case NETDEV_UNREGISTER:

net/wireless/core.h

···
 /*
  * Wireless configuration interface internals.
  *
- * Copyright 2006, 2007 Johannes Berg <[e-mail]>
+ * Copyright 2006-2009	Johannes Berg <[e-mail]>
  */
 #ifndef __NET_WIRELESS_CORE_H
 #define __NET_WIRELESS_CORE_H
···
 void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
 int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
 			struct net_device *dev, bool nowext);
+
+/* internal helpers */
+int cfg80211_validate_key_settings(struct key_params *params, int key_idx,
+				   const u8 *mac_addr);
 
 #endif /* __NET_WIRELESS_CORE_H */

net/wireless/ibss.c

···
 		return -EALREADY;
 
 #ifdef CONFIG_WIRELESS_EXT
-	wdev->wext.channel = params->channel;
+	wdev->wext.ibss.channel = params->channel;
 #endif
 	err = rdev->ops->join_ibss(&rdev->wiphy, dev, params);
 
···
 	memset(wdev->bssid, 0, ETH_ALEN);
 #ifdef CONFIG_WIRELESS_EXT
 	if (!nowext)
-		wdev->wext.ssid_len = 0;
+		wdev->wext.ibss.ssid_len = 0;
 #endif
 }
 
···
 	enum ieee80211_band band;
 	int i;
 
-	if (!wdev->wext.beacon_interval)
-		wdev->wext.beacon_interval = 100;
+	if (!wdev->wext.ibss.beacon_interval)
+		wdev->wext.ibss.beacon_interval = 100;
 
 	/* try to find an IBSS channel if none requested ... */
-	if (!wdev->wext.channel) {
+	if (!wdev->wext.ibss.channel) {
 		for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 			struct ieee80211_supported_band *sband;
 			struct ieee80211_channel *chan;
···
 					continue;
 				if (chan->flags & IEEE80211_CHAN_DISABLED)
 					continue;
-				wdev->wext.channel = chan;
+				wdev->wext.ibss.channel = chan;
 				break;
 			}
 
-			if (wdev->wext.channel)
+			if (wdev->wext.ibss.channel)
 				break;
 		}
 
-		if (!wdev->wext.channel)
+		if (!wdev->wext.ibss.channel)
 			return -EINVAL;
 	}
 
 	/* don't join -- SSID is not there */
-	if (!wdev->wext.ssid_len)
+	if (!wdev->wext.ibss.ssid_len)
 		return 0;
 
 	if (!netif_running(wdev->netdev))
 		return 0;
 
 	return cfg80211_join_ibss(wiphy_to_dev(wdev->wiphy),
-				  wdev->netdev, &wdev->wext);
+				  wdev->netdev, &wdev->wext.ibss);
 }
 
 int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
···
 	     chan->flags & IEEE80211_CHAN_DISABLED))
 		return -EINVAL;
 
-	if (wdev->wext.channel == chan)
+	if (wdev->wext.ibss.channel == chan)
 		return 0;
 
 	if (wdev->ssid_len) {
···
 	}
 
 	if (chan) {
-		wdev->wext.channel = chan;
-		wdev->wext.channel_fixed = true;
+		wdev->wext.ibss.channel = chan;
+		wdev->wext.ibss.channel_fixed = true;
 	} else {
 		/* cfg80211_ibss_wext_join will pick one if needed */
-		wdev->wext.channel_fixed = false;
+		wdev->wext.ibss.channel_fixed = false;
 	}
 
 	return cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
···
 
 	if (wdev->current_bss)
 		chan = wdev->current_bss->channel;
-	else if (wdev->wext.channel)
-		chan = wdev->wext.channel;
+	else if (wdev->wext.ibss.channel)
+		chan = wdev->wext.ibss.channel;
 
 	if (chan) {
 		freq->m = chan->center_freq;
···
 	if (len > 0 && ssid[len - 1] == '\0')
 		len--;
 
-	wdev->wext.ssid = wdev->ssid;
-	memcpy(wdev->wext.ssid, ssid, len);
-	wdev->wext.ssid_len = len;
+	wdev->wext.ibss.ssid = wdev->ssid;
+	memcpy(wdev->wext.ibss.ssid, ssid, len);
+	wdev->wext.ibss.ssid_len = len;
 
 	return cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
 }
···
 		data->flags = 1;
 		data->length = wdev->ssid_len;
 		memcpy(ssid, wdev->ssid, data->length);
-	} else if (wdev->wext.ssid && wdev->wext.ssid_len) {
+	} else if (wdev->wext.ibss.ssid && wdev->wext.ibss.ssid_len) {
 		data->flags = 1;
-		data->length = wdev->wext.ssid_len;
-		memcpy(ssid, wdev->wext.ssid, data->length);
+		data->length = wdev->wext.ibss.ssid_len;
+		memcpy(ssid, wdev->wext.ibss.ssid, data->length);
 	}
 
 	return 0;
···
 		bssid = NULL;
 
 	/* both automatic */
-	if (!bssid && !wdev->wext.bssid)
+	if (!bssid && !wdev->wext.ibss.bssid)
 		return 0;
 
 	/* fixed already - and no change */
-	if (wdev->wext.bssid && bssid &&
-	    compare_ether_addr(bssid, wdev->wext.bssid) == 0)
+	if (wdev->wext.ibss.bssid && bssid &&
+	    compare_ether_addr(bssid, wdev->wext.ibss.bssid) == 0)
 		return 0;
 
 	if (wdev->ssid_len) {
···
 	}
 
 	if (bssid) {
-		memcpy(wdev->wext_bssid, bssid, ETH_ALEN);
-		wdev->wext.bssid = wdev->wext_bssid;
+		memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
+		wdev->wext.ibss.bssid = wdev->wext.bssid;
 	} else
-		wdev->wext.bssid = NULL;
+		wdev->wext.ibss.bssid = NULL;
 
 	return cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
 }
···
 
 	ap_addr->sa_family = ARPHRD_ETHER;
 
-	if (wdev->wext.bssid) {
-		memcpy(ap_addr->sa_data, wdev->wext.bssid, ETH_ALEN);
+	if (wdev->wext.ibss.bssid) {
+		memcpy(ap_addr->sa_data, wdev->wext.ibss.bssid, ETH_ALEN);
 		return 0;
 	}
 

net/wireless/nl80211.c

···
 /*
  * This is the new netlink-based wireless configuration interface.
  *
- * Copyright 2006, 2007	Johannes Berg <[e-mail]>
+ * Copyright 2006-2009	Johannes Berg <[e-mail]>
  */
 
 #include <linux/if.h>
···
 	[NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
 	[NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
 	[NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
+	[NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
+	[NL80211_ATTR_STA_FLAGS2] = {
+		.len = sizeof(struct nl80211_sta_flag_update),
+	},
+	[NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
 };
 
 /* IE validation */
···
 	}
 
 	err = func(&drv->wiphy, dev, key_idx);
+#ifdef CONFIG_WIRELESS_EXT
+	if (!err) {
+		if (func == drv->ops->set_default_key)
+			dev->ieee80211_ptr->wext.default_key = key_idx;
+		else
+			dev->ieee80211_ptr->wext.default_mgmt_key = key_idx;
+	}
+#endif
 
  out:
 	cfg80211_put_dev(drv);
···
 		params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
 	}
 
+	if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
+		params.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
+		params.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
+	}
+
 	if (info->attrs[NL80211_ATTR_KEY_IDX])
 		key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
 
···
 	if (info->attrs[NL80211_ATTR_MAC])
 		mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
 
-	if (key_idx > 5)
+	if (cfg80211_validate_key_settings(&params, key_idx, mac_addr))
 		return -EINVAL;
-
-	/*
-	 * Disallow pairwise keys with non-zero index unless it's WEP
-	 * (because current deployments use pairwise WEP keys with
-	 * non-zero indizes but 802.11i clearly specifies to use zero)
-	 */
-	if (mac_addr && key_idx &&
-	    params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
-	    params.cipher != WLAN_CIPHER_SUITE_WEP104)
-		return -EINVAL;
-
-	/* TODO: add definitions for the lengths to linux/ieee80211.h */
-	switch (params.cipher) {
-	case WLAN_CIPHER_SUITE_WEP40:
-		if (params.key_len != 5)
-			return -EINVAL;
-		break;
-	case WLAN_CIPHER_SUITE_TKIP:
-		if (params.key_len != 32)
-			return -EINVAL;
-		break;
-	case WLAN_CIPHER_SUITE_CCMP:
-		if (params.key_len != 16)
-			return -EINVAL;
-		break;
-	case WLAN_CIPHER_SUITE_WEP104:
-		if (params.key_len != 13)
-			return -EINVAL;
-		break;
-	case WLAN_CIPHER_SUITE_AES_CMAC:
-		if (params.key_len != 16)
-			return -EINVAL;
-		break;
-	default:
-		return -EINVAL;
-	}
 
 	rtnl_lock();
 
···
 	}
 
 	err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
+
+#ifdef CONFIG_WIRELESS_EXT
+	if (!err) {
+		if (key_idx == dev->ieee80211_ptr->wext.default_key)
+			dev->ieee80211_ptr->wext.default_key = -1;
+		else if (key_idx == dev->ieee80211_ptr->wext.default_mgmt_key)
+			dev->ieee80211_ptr->wext.default_mgmt_key = -1;
+	}
+#endif
 
  out:
 	cfg80211_put_dev(drv);
···
 	[NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
 	[NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
 	[NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
+	[NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
 };
 
-static int parse_station_flags(struct nlattr *nla, u32 *staflags)
+static int parse_station_flags(struct genl_info *info,
+			       struct station_parameters *params)
 {
 	struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
+	struct nlattr *nla;
 	int flag;
 
-	*staflags = 0;
+	/*
+	 * Try parsing the new attribute first so userspace
+	 * can specify both for older kernels.
+	 */
+	nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
+	if (nla) {
+		struct nl80211_sta_flag_update *sta_flags;
 
+		sta_flags = nla_data(nla);
+		params->sta_flags_mask = sta_flags->mask;
+		params->sta_flags_set = sta_flags->set;
+		if ((params->sta_flags_mask |
+		     params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
+			return -EINVAL;
+		return 0;
+	}
+
+	/* if present, parse the old attribute */
+
+	nla = info->attrs[NL80211_ATTR_STA_FLAGS];
 	if (!nla)
 		return 0;
 
···
 			     nla, sta_flags_policy))
 		return -EINVAL;
 
-	*staflags = STATION_FLAG_CHANGED;
+	params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
+	params->sta_flags_mask &= ~1;
 
 	for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
 		if (flags[flag])
-			*staflags |= (1<<flag);
+			params->sta_flags_set |= (1<<flag);
 
 	return 0;
 }
···
 		params.ht_capa =
 			nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
 
-	if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
-				&params.station_flags))
+	if (parse_station_flags(info, &params))
 		return -EINVAL;
 
 	if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
···
 		params.ht_capa =
 			nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
 
-	if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
-				&params.station_flags))
+	if (parse_station_flags(info, &params))
 		return -EINVAL;
 
 	rtnl_lock();
···
 	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
 	if (err)
 		goto out_rtnl;
+
+	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
+	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) {
+		err = -EINVAL;
+		goto out;
+	}
 
 	err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
 	if (err)
···
 	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
 	if (err)
 		goto out_rtnl;
+
+	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
+	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) {
+		err = -EINVAL;
+		goto out;
+	}
 
 	if (!drv->ops->del_station) {
 		err = -EOPNOTSUPP;
···
 		req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
 		req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
 	}
+
+	if (info->attrs[NL80211_ATTR_USE_MFP]) {
+		enum nl80211_mfp use_mfp =
+			nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
+		if (use_mfp == NL80211_MFP_REQUIRED)
+			req.use_mfp = true;
+		else if (use_mfp != NL80211_MFP_NO) {
+			err = -EINVAL;
+			goto out;
+		}
+	}
+
+	req.control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
 
 	err = drv->ops->assoc(&drv->wiphy, dev, &req);
 

net/wireless/util.c

···
 		if (wiphy->bands[band])
 			set_mandatory_flags_band(wiphy->bands[band], band);
 }
+
+int cfg80211_validate_key_settings(struct key_params *params, int key_idx,
+				   const u8 *mac_addr)
+{
+	if (key_idx > 5)
+		return -EINVAL;
+
+	/*
+	 * Disallow pairwise keys with non-zero index unless it's WEP
+	 * (because current deployments use pairwise WEP keys with
+	 * non-zero indizes but 802.11i clearly specifies to use zero)
+	 */
+	if (mac_addr && key_idx &&
+	    params->cipher != WLAN_CIPHER_SUITE_WEP40 &&
+	    params->cipher != WLAN_CIPHER_SUITE_WEP104)
+		return -EINVAL;
+
+	/* TODO: add definitions for the lengths to linux/ieee80211.h */
+	switch (params->cipher) {
+	case WLAN_CIPHER_SUITE_WEP40:
+		if (params->key_len != 5)
+			return -EINVAL;
+		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+		if (params->key_len != 32)
+			return -EINVAL;
+		break;
+	case WLAN_CIPHER_SUITE_CCMP:
+		if (params->key_len != 16)
+			return -EINVAL;
+		break;
+	case WLAN_CIPHER_SUITE_WEP104:
+		if (params->key_len != 13)
+			return -EINVAL;
+		break;
+	case WLAN_CIPHER_SUITE_AES_CMAC:
+		if (params->key_len != 16)
+			return -EINVAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}

net/wireless/wext-compat.c

···
  * into cfg80211, when that happens all the exports here go away and
  * we directly assign the wireless handlers of wireless interfaces.
  *
- * Copyright 2008	Johannes Berg <[e-mail]>
+ * Copyright 2008-2009	Johannes Berg <[e-mail]>
  */
 
 #include <linux/wireless.h>
 #include <linux/nl80211.h>
 #include <linux/if_arp.h>
+#include <linux/etherdevice.h>
 #include <net/iw_handler.h>
 #include <net/cfg80211.h>
 #include "core.h"
···
 struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
 					     struct iw_freq *freq)
 {
+	struct ieee80211_channel *chan;
+	int f;
+
+	/*
+	 * Parse frequency - return NULL for auto and
+	 * -EINVAL for impossible things.
+	 */
 	if (freq->e == 0) {
 		if (freq->m < 0)
 			return NULL;
-		else
-			return ieee80211_get_channel(wiphy,
-				ieee80211_channel_to_frequency(freq->m));
+		f = ieee80211_channel_to_frequency(freq->m);
 	} else {
 		int i, div = 1000000;
 		for (i = 0; i < freq->e; i++)
 			div /= 10;
-		if (div > 0)
-			return ieee80211_get_channel(wiphy, freq->m / div);
-		else
+		if (div <= 0)
 			return ERR_PTR(-EINVAL);
+		f = freq->m / div;
 	}
 
+	/*
+	 * Look up channel struct and return -EINVAL when
+	 * it cannot be found.
+	 */
+	chan = ieee80211_get_channel(wiphy, f);
+	if (!chan)
+		return ERR_PTR(-EINVAL);
+	return chan;
 }
 EXPORT_SYMBOL_GPL(cfg80211_wext_freq);
 
···
 	return 0;
 }
 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
+
+static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
+				   struct net_device *dev, const u8 *addr,
+				   bool remove, bool tx_key, int idx,
+				   struct key_params *params)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	int err;
+
+	if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
+		if (!rdev->ops->set_default_mgmt_key)
+			return -EOPNOTSUPP;
+
+		if (idx < 4 || idx > 5)
+			return -EINVAL;
+	} else if (idx < 0 || idx > 3)
+		return -EINVAL;
+
+	if (remove) {
+		err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
+		if (!err) {
+			if (idx == wdev->wext.default_key)
+				wdev->wext.default_key = -1;
+			else if (idx == wdev->wext.default_mgmt_key)
+				wdev->wext.default_mgmt_key = -1;
+		}
+		return err;
+	} else {
+		if (addr)
+			tx_key = false;
+
+		if (cfg80211_validate_key_settings(params, idx, addr))
+			return -EINVAL;
+
+		err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
+		if (err)
+			return err;
+
+		if (tx_key || (!addr && wdev->wext.default_key == -1)) {
+			err = rdev->ops->set_default_key(&rdev->wiphy,
+							 dev, idx);
+			if (!err)
+				wdev->wext.default_key = idx;
+			return err;
+		}
+
+		if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
+		    (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
+			err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
+							      dev, idx);
+			if (!err)
+				wdev->wext.default_mgmt_key = idx;
+			return err;
+		}
+
+		return 0;
+	}
+}
+
+int cfg80211_wext_siwencode(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_point *erq, char *keybuf)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	int idx, err;
+	bool remove = false;
+	struct key_params params;
+
+	/* no use -- only MFP (set_default_mgmt_key) is optional */
+	if (!rdev->ops->del_key ||
+	    !rdev->ops->add_key ||
+	    !rdev->ops->set_default_key)
+		return -EOPNOTSUPP;
+
+	idx = erq->flags & IW_ENCODE_INDEX;
+	if (idx == 0) {
+		idx = wdev->wext.default_key;
+		if (idx < 0)
+			idx = 0;
+	} else if (idx < 1 || idx > 4)
+		return -EINVAL;
+	else
+		idx--;
+
+	if (erq->flags & IW_ENCODE_DISABLED)
+		remove = true;
+	else if (erq->length == 0) {
+		/* No key data - just set the default TX key index */
+		err = rdev->ops->set_default_key(&rdev->wiphy, dev, idx);
+		if (!err)
+			wdev->wext.default_key = idx;
+		return err;
+	}
+
+	memset(&params, 0, sizeof(params));
+	params.key = keybuf;
+	params.key_len = erq->length;
+	if (erq->length == 5)
+		params.cipher = WLAN_CIPHER_SUITE_WEP40;
+	else if (erq->length == 13)
+		params.cipher = WLAN_CIPHER_SUITE_WEP104;
+	else if (!remove)
+		return -EINVAL;
+
+	return cfg80211_set_encryption(rdev, dev, NULL, remove,
+				       wdev->wext.default_key == -1,
+				       idx, &params);
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
+
+int cfg80211_wext_siwencodeext(struct net_device *dev,
+			       struct iw_request_info *info,
+			       struct iw_point *erq, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
+	const u8 *addr;
+	int idx;
+	bool remove = false;
+	struct key_params params;
+	u32 cipher;
+
+	/* no use -- only MFP (set_default_mgmt_key) is optional */
+	if (!rdev->ops->del_key ||
+	    !rdev->ops->add_key ||
+	    !rdev->ops->set_default_key)
+		return -EOPNOTSUPP;
+
+	switch (ext->alg) {
+	case IW_ENCODE_ALG_NONE:
+		remove = true;
+		cipher = 0;
+		break;
+	case IW_ENCODE_ALG_WEP:
+		if (ext->key_len == 5)
+			cipher = WLAN_CIPHER_SUITE_WEP40;
+		else if (ext->key_len == 13)
+			cipher = WLAN_CIPHER_SUITE_WEP104;
+		else
+			return -EINVAL;
+		break;
+	case IW_ENCODE_ALG_TKIP:
+		cipher = WLAN_CIPHER_SUITE_TKIP;
+		break;
+	case IW_ENCODE_ALG_CCMP:
+		cipher = WLAN_CIPHER_SUITE_CCMP;
+		break;
+	case IW_ENCODE_ALG_AES_CMAC:
+		cipher = WLAN_CIPHER_SUITE_AES_CMAC;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	if (erq->flags & IW_ENCODE_DISABLED)
+		remove = true;
+
+	idx = erq->flags & IW_ENCODE_INDEX;
+	if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
+		if (idx < 4 || idx > 5) {
+			idx = wdev->wext.default_mgmt_key;
+			if (idx < 0)
+				return -EINVAL;
+		} else
+			idx--;
+	} else {
+		if (idx < 1 || idx > 4) {
+			idx = wdev->wext.default_key;
+			if (idx < 0)
+				return -EINVAL;
+		} else
+			idx--;
+	}
+
+	addr = ext->addr.sa_data;
+	if (is_broadcast_ether_addr(addr))
+		addr = NULL;
+
+	memset(&params, 0, sizeof(params));
+	params.key = ext->key;
+	params.key_len = ext->key_len;
+	params.cipher = cipher;
+
+	if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
+		params.seq = ext->rx_seq;
+		params.seq_len = 6;
+	}
+
+	return cfg80211_set_encryption(
+			rdev, dev, addr, remove,
+			ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
+			idx, &params);
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
+
+struct giwencode_cookie {
+	size_t buflen;
+	char *keybuf;
+};
+
+static void giwencode_get_key_cb(void *cookie, struct key_params *params)
+{
+	struct giwencode_cookie *data = cookie;
+
+	if (!params->key) {
+		data->buflen = 0;
+		return;
+	}
+
+	data->buflen = min_t(size_t, data->buflen, params->key_len);
+	memcpy(data->keybuf, params->key, data->buflen);
+}
+
+int cfg80211_wext_giwencode(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_point *erq, char *keybuf)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	int idx, err;
+	struct giwencode_cookie data = {
+		.keybuf = keybuf,
+		.buflen = erq->length,
+	};
+
+	if (!rdev->ops->get_key)
+		return -EOPNOTSUPP;
+
+	idx = erq->flags & IW_ENCODE_INDEX;
+	if (idx == 0) {
+		idx = wdev->wext.default_key;
+		if (idx < 0)
+			idx = 0;
+	} else if (idx < 1 || idx > 4)
+		return -EINVAL;
+	else
+		idx--;
+
+	erq->flags = idx + 1;
+
+	err = rdev->ops->get_key(&rdev->wiphy, dev, idx, NULL, &data,
+				 giwencode_get_key_cb);
+	if (!err) {
+		erq->length = data.buflen;
+		erq->flags |= IW_ENCODE_ENABLED;
+		return 0;
+	}
+
+	if (err == -ENOENT) {
+		erq->flags |= IW_ENCODE_DISABLED;
+		erq->length = 0;
+		return 0;
+	}
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);

net/wireless/wext.c

···
 	return 0;
 }
 
+static void *wireless_dev_seq_start(struct seq_file *seq, loff_t *pos)
+{
+	rtnl_lock();
+	return dev_seq_start(seq, pos);
+}
+
+static void wireless_dev_seq_stop(struct seq_file *seq, void *v)
+{
+	dev_seq_stop(seq, v);
+	rtnl_unlock();
+}
+
 static const struct seq_operations wireless_seq_ops = {
-	.start = dev_seq_start,
+	.start = wireless_dev_seq_start,
 	.next  = dev_seq_next,
-	.stop  = dev_seq_stop,
+	.stop  = wireless_dev_seq_stop,
 	.show  = wireless_seq_show,
 };
 
-static int wireless_seq_open(struct inode *inode, struct file *file)
+static int seq_open_wireless(struct inode *inode, struct file *file)
 {
 	return seq_open_net(inode, file, &wireless_seq_ops,
 			    sizeof(struct seq_net_private));
···
 
 static const struct file_operations wireless_seq_fops = {
 	.owner	 = THIS_MODULE,
-	.open    = wireless_seq_open,
+	.open    = seq_open_wireless,
 	.read    = seq_read,
 	.llseek  = seq_lseek,
 	.release = seq_release_net,