iwlegacy: remove iwl-sta.c

I forgot to remove this file before.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 0 insertions, 817 deletions

diff --git a/drivers/net/wireless/iwlegacy/iwl-sta.c b/drivers/net/wireless/iwlegacy/iwl-sta.c
deleted file mode 100644
index 75fe315f66b4..000000000000
--- a/drivers/net/wireless/iwlegacy/iwl-sta.c
+++ /dev/null
@@ -1,817 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- *  Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <net/mac80211.h>
-#include <linux/etherdevice.h>
-#include <linux/sched.h>
-#include <linux/lockdep.h>
-#include <linux/export.h>
-
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-sta.h"
-
-/* il->sta_lock must be held */
-static void il_sta_ucode_activate(struct il_priv *il, u8 sta_id)
-{
-
-	if (!(il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE))
-		IL_ERR(
-			"ACTIVATE a non DRIVER active station id %u addr %pM\n",
-			sta_id, il->stations[sta_id].sta.sta.addr);
-
-	if (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE) {
-		D_ASSOC(
-			"STA id %u addr %pM already present"
-			" in uCode (according to driver)\n",
-			sta_id, il->stations[sta_id].sta.sta.addr);
-	} else {
-		il->stations[sta_id].used |= IL_STA_UCODE_ACTIVE;
-		D_ASSOC("Added STA id %u addr %pM to uCode\n",
-				sta_id, il->stations[sta_id].sta.sta.addr);
-	}
-}
-
-static int il_process_add_sta_resp(struct il_priv *il,
-				    struct il_addsta_cmd *addsta,
-				    struct il_rx_pkt *pkt,
-				    bool sync)
-{
-	u8 sta_id = addsta->sta.sta_id;
-	unsigned long flags;
-	int ret = -EIO;
-
-	if (pkt->hdr.flags & IL_CMD_FAILED_MSK) {
-		IL_ERR("Bad return from C_ADD_STA (0x%08X)\n",
-			pkt->hdr.flags);
-		return ret;
-	}
-
-	D_INFO("Processing response for adding station %u\n",
-		       sta_id);
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-
-	switch (pkt->u.add_sta.status) {
-	case ADD_STA_SUCCESS_MSK:
-		D_INFO("C_ADD_STA PASSED\n");
-		il_sta_ucode_activate(il, sta_id);
-		ret = 0;
-		break;
-	case ADD_STA_NO_ROOM_IN_TBL:
-		IL_ERR("Adding station %d failed, no room in table.\n",
-			sta_id);
-		break;
-	case ADD_STA_NO_BLOCK_ACK_RESOURCE:
-		IL_ERR(
-			"Adding station %d failed, no block ack resource.\n",
-			sta_id);
-		break;
-	case ADD_STA_MODIFY_NON_EXIST_STA:
-		IL_ERR("Attempting to modify non-existing station %d\n",
-			sta_id);
-		break;
-	default:
-		D_ASSOC("Received C_ADD_STA:(0x%08X)\n",
-				pkt->u.add_sta.status);
-		break;
-	}
-
-	D_INFO("%s station id %u addr %pM\n",
-		       il->stations[sta_id].sta.mode ==
-		       STA_CONTROL_MODIFY_MSK ?  "Modified" : "Added",
-		       sta_id, il->stations[sta_id].sta.sta.addr);
-
-	/*
-	 * XXX: The MAC address in the command buffer is often changed from
-	 * the original sent to the device. That is, the MAC address
-	 * written to the command buffer often is not the same MAC address
-	 * read from the command buffer when the command returns. This
-	 * issue has not yet been resolved and this debugging is left to
-	 * observe the problem.
-	 */
-	D_INFO("%s station according to cmd buffer %pM\n",
-		       il->stations[sta_id].sta.mode ==
-		       STA_CONTROL_MODIFY_MSK ? "Modified" : "Added",
-		       addsta->sta.addr);
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return ret;
-}
-
-static void il_add_sta_callback(struct il_priv *il,
-				 struct il_device_cmd *cmd,
-				 struct il_rx_pkt *pkt)
-{
-	struct il_addsta_cmd *addsta =
-		(struct il_addsta_cmd *)cmd->cmd.payload;
-
-	il_process_add_sta_resp(il, addsta, pkt, false);
-
-}
-
-int il_send_add_sta(struct il_priv *il,
-		     struct il_addsta_cmd *sta, u8 flags)
-{
-	struct il_rx_pkt *pkt = NULL;
-	int ret = 0;
-	u8 data[sizeof(*sta)];
-	struct il_host_cmd cmd = {
-		.id = C_ADD_STA,
-		.flags = flags,
-		.data = data,
-	};
-	u8 sta_id __maybe_unused = sta->sta.sta_id;
-
-	D_INFO("Adding sta %u (%pM) %ssynchronously\n",
-		       sta_id, sta->sta.addr, flags & CMD_ASYNC ?  "a" : "");
-
-	if (flags & CMD_ASYNC)
-		cmd.callback = il_add_sta_callback;
-	else {
-		cmd.flags |= CMD_WANT_SKB;
-		might_sleep();
-	}
-
-	cmd.len = il->cfg->ops->utils->build_addsta_hcmd(sta, data);
-	ret = il_send_cmd(il, &cmd);
-
-	if (ret || (flags & CMD_ASYNC))
-		return ret;
-
-	if (ret == 0) {
-		pkt = (struct il_rx_pkt *)cmd.reply_page;
-		ret = il_process_add_sta_resp(il, sta, pkt, true);
-	}
-	il_free_pages(il, cmd.reply_page);
-
-	return ret;
-}
-EXPORT_SYMBOL(il_send_add_sta);
-
-static void il_set_ht_add_station(struct il_priv *il, u8 idx,
-				   struct ieee80211_sta *sta,
-				   struct il_rxon_context *ctx)
-{
-	struct ieee80211_sta_ht_cap *sta_ht_inf = &sta->ht_cap;
-	__le32 sta_flags;
-	u8 mimo_ps_mode;
-
-	if (!sta || !sta_ht_inf->ht_supported)
-		goto done;
-
-	mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
-	D_ASSOC("spatial multiplexing power save mode: %s\n",
-			(mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ?
-			"static" :
-			(mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ?
-			"dynamic" : "disabled");
-
-	sta_flags = il->stations[idx].sta.station_flags;
-
-	sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
-
-	switch (mimo_ps_mode) {
-	case WLAN_HT_CAP_SM_PS_STATIC:
-		sta_flags |= STA_FLG_MIMO_DIS_MSK;
-		break;
-	case WLAN_HT_CAP_SM_PS_DYNAMIC:
-		sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
-		break;
-	case WLAN_HT_CAP_SM_PS_DISABLED:
-		break;
-	default:
-		IL_WARN("Invalid MIMO PS mode %d\n", mimo_ps_mode);
-		break;
-	}
-
-	sta_flags |= cpu_to_le32(
-	      (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
-
-	sta_flags |= cpu_to_le32(
-	      (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
-
-	if (il_is_ht40_tx_allowed(il, ctx, &sta->ht_cap))
-		sta_flags |= STA_FLG_HT40_EN_MSK;
-	else
-		sta_flags &= ~STA_FLG_HT40_EN_MSK;
-
-	il->stations[idx].sta.station_flags = sta_flags;
- done:
-	return;
-}
-
-/**
- * il_prep_station - Prepare station information for addition
- *
- * should be called with sta_lock held
- */
-u8 il_prep_station(struct il_priv *il, struct il_rxon_context *ctx,
-		    const u8 *addr, bool is_ap, struct ieee80211_sta *sta)
-{
-	struct il_station_entry *station;
-	int i;
-	u8 sta_id = IL_INVALID_STATION;
-	u16 rate;
-
-	if (is_ap)
-		sta_id = ctx->ap_sta_id;
-	else if (is_broadcast_ether_addr(addr))
-		sta_id = ctx->bcast_sta_id;
-	else
-		for (i = IL_STA_ID; i < il->hw_params.max_stations; i++) {
-			if (!compare_ether_addr(il->stations[i].sta.sta.addr,
-						addr)) {
-				sta_id = i;
-				break;
-			}
-
-			if (!il->stations[i].used &&
-			    sta_id == IL_INVALID_STATION)
-				sta_id = i;
-		}
-
-	/*
-	 * These two conditions have the same outcome, but keep them
-	 * separate
-	 */
-	if (unlikely(sta_id == IL_INVALID_STATION))
-		return sta_id;
-
-	/*
-	 * uCode is not able to deal with multiple requests to add a
-	 * station. Keep track if one is in progress so that we do not send
-	 * another.
-	 */
-	if (il->stations[sta_id].used & IL_STA_UCODE_INPROGRESS) {
-		D_INFO(
-				"STA %d already in process of being added.\n",
-				sta_id);
-		return sta_id;
-	}
-
-	if ((il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE) &&
-	    (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE) &&
-	    !compare_ether_addr(il->stations[sta_id].sta.sta.addr, addr)) {
-		D_ASSOC(
-				"STA %d (%pM) already added, not adding again.\n",
-				sta_id, addr);
-		return sta_id;
-	}
-
-	station = &il->stations[sta_id];
-	station->used = IL_STA_DRIVER_ACTIVE;
-	D_ASSOC("Add STA to driver ID %d: %pM\n",
-			sta_id, addr);
-	il->num_stations++;
-
-	/* Set up the C_ADD_STA command to send to device */
-	memset(&station->sta, 0, sizeof(struct il_addsta_cmd));
-	memcpy(station->sta.sta.addr, addr, ETH_ALEN);
-	station->sta.mode = 0;
-	station->sta.sta.sta_id = sta_id;
-	station->sta.station_flags = ctx->station_flags;
-	station->ctxid = ctx->ctxid;
-
-	if (sta) {
-		struct il_station_priv_common *sta_priv;
-
-		sta_priv = (void *)sta->drv_priv;
-		sta_priv->ctx = ctx;
-	}
-
-	/*
-	 * OK to call unconditionally, since local stations (IBSS BSSID
-	 * STA and broadcast STA) pass in a NULL sta, and mac80211
-	 * doesn't allow HT IBSS.
-	 */
-	il_set_ht_add_station(il, sta_id, sta, ctx);
-
-	/* 3945 only */
-	rate = (il->band == IEEE80211_BAND_5GHZ) ?
-		RATE_6M_PLCP : RATE_1M_PLCP;
-	/* Turn on both antennas for the station... */
-	station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK);
-
-	return sta_id;
-
-}
-EXPORT_SYMBOL_GPL(il_prep_station);
-
-#define STA_WAIT_TIMEOUT (HZ/2)
-
-/**
- * il_add_station_common -
- */
-int
-il_add_station_common(struct il_priv *il,
-			struct il_rxon_context *ctx,
-			   const u8 *addr, bool is_ap,
-			   struct ieee80211_sta *sta, u8 *sta_id_r)
-{
-	unsigned long flags_spin;
-	int ret = 0;
-	u8 sta_id;
-	struct il_addsta_cmd sta_cmd;
-
-	*sta_id_r = 0;
-	spin_lock_irqsave(&il->sta_lock, flags_spin);
-	sta_id = il_prep_station(il, ctx, addr, is_ap, sta);
-	if (sta_id == IL_INVALID_STATION) {
-		IL_ERR("Unable to prepare station %pM for addition\n",
-			addr);
-		spin_unlock_irqrestore(&il->sta_lock, flags_spin);
-		return -EINVAL;
-	}
-
-	/*
-	 * uCode is not able to deal with multiple requests to add a
-	 * station. Keep track if one is in progress so that we do not send
-	 * another.
-	 */
-	if (il->stations[sta_id].used & IL_STA_UCODE_INPROGRESS) {
-		D_INFO(
-			"STA %d already in process of being added.\n",
-		       sta_id);
-		spin_unlock_irqrestore(&il->sta_lock, flags_spin);
-		return -EEXIST;
-	}
-
-	if ((il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE) &&
-	    (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE)) {
-		D_ASSOC(
-			"STA %d (%pM) already added, not adding again.\n",
-			sta_id, addr);
-		spin_unlock_irqrestore(&il->sta_lock, flags_spin);
-		return -EEXIST;
-	}
-
-	il->stations[sta_id].used |= IL_STA_UCODE_INPROGRESS;
-	memcpy(&sta_cmd, &il->stations[sta_id].sta,
-				sizeof(struct il_addsta_cmd));
-	spin_unlock_irqrestore(&il->sta_lock, flags_spin);
-
-	/* Add station to device's station table */
-	ret = il_send_add_sta(il, &sta_cmd, CMD_SYNC);
-	if (ret) {
-		spin_lock_irqsave(&il->sta_lock, flags_spin);
-		IL_ERR("Adding station %pM failed.\n",
-			il->stations[sta_id].sta.sta.addr);
-		il->stations[sta_id].used &= ~IL_STA_DRIVER_ACTIVE;
-		il->stations[sta_id].used &= ~IL_STA_UCODE_INPROGRESS;
-		spin_unlock_irqrestore(&il->sta_lock, flags_spin);
-	}
-	*sta_id_r = sta_id;
-	return ret;
-}
-EXPORT_SYMBOL(il_add_station_common);
-
-/**
- * il_sta_ucode_deactivate - deactivate ucode status for a station
- *
- * il->sta_lock must be held
- */
-static void il_sta_ucode_deactivate(struct il_priv *il, u8 sta_id)
-{
-	/* Ucode must be active and driver must be non active */
-	if ((il->stations[sta_id].used &
-	     (IL_STA_UCODE_ACTIVE | IL_STA_DRIVER_ACTIVE)) !=
-						IL_STA_UCODE_ACTIVE)
-		IL_ERR("removed non active STA %u\n", sta_id);
-
-	il->stations[sta_id].used &= ~IL_STA_UCODE_ACTIVE;
-
-	memset(&il->stations[sta_id], 0, sizeof(struct il_station_entry));
-	D_ASSOC("Removed STA %u\n", sta_id);
-}
-
-static int il_send_remove_station(struct il_priv *il,
-				   const u8 *addr, int sta_id,
-				   bool temporary)
-{
-	struct il_rx_pkt *pkt;
-	int ret;
-
-	unsigned long flags_spin;
-	struct il_rem_sta_cmd rm_sta_cmd;
-
-	struct il_host_cmd cmd = {
-		.id = C_REM_STA,
-		.len = sizeof(struct il_rem_sta_cmd),
-		.flags = CMD_SYNC,
-		.data = &rm_sta_cmd,
-	};
-
-	memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd));
-	rm_sta_cmd.num_sta = 1;
-	memcpy(&rm_sta_cmd.addr, addr, ETH_ALEN);
-
-	cmd.flags |= CMD_WANT_SKB;
-
-	ret = il_send_cmd(il, &cmd);
-
-	if (ret)
-		return ret;
-
-	pkt = (struct il_rx_pkt *)cmd.reply_page;
-	if (pkt->hdr.flags & IL_CMD_FAILED_MSK) {
-		IL_ERR("Bad return from C_REM_STA (0x%08X)\n",
-			  pkt->hdr.flags);
-		ret = -EIO;
-	}
-
-	if (!ret) {
-		switch (pkt->u.rem_sta.status) {
-		case REM_STA_SUCCESS_MSK:
-			if (!temporary) {
-				spin_lock_irqsave(&il->sta_lock, flags_spin);
-				il_sta_ucode_deactivate(il, sta_id);
-				spin_unlock_irqrestore(&il->sta_lock,
-								flags_spin);
-			}
-			D_ASSOC("C_REM_STA PASSED\n");
-			break;
-		default:
-			ret = -EIO;
-			IL_ERR("C_REM_STA failed\n");
-			break;
-		}
-	}
-	il_free_pages(il, cmd.reply_page);
-
-	return ret;
-}
-
-/**
- * il_remove_station - Remove driver's knowledge of station.
- */
-int il_remove_station(struct il_priv *il, const u8 sta_id,
-		       const u8 *addr)
-{
-	unsigned long flags;
-
-	if (!il_is_ready(il)) {
-		D_INFO(
-			"Unable to remove station %pM, device not ready.\n",
-			addr);
-		/*
-		 * It is typical for stations to be removed when we are
-		 * going down. Return success since device will be down
-		 * soon anyway
-		 */
-		return 0;
-	}
-
-	D_ASSOC("Removing STA from driver:%d  %pM\n",
-			sta_id, addr);
-
-	if (WARN_ON(sta_id == IL_INVALID_STATION))
-		return -EINVAL;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-
-	if (!(il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE)) {
-		D_INFO("Removing %pM but non DRIVER active\n",
-				addr);
-		goto out_err;
-	}
-
-	if (!(il->stations[sta_id].used & IL_STA_UCODE_ACTIVE)) {
-		D_INFO("Removing %pM but non UCODE active\n",
-				addr);
-		goto out_err;
-	}
-
-	if (il->stations[sta_id].used & IL_STA_LOCAL) {
-		kfree(il->stations[sta_id].lq);
-		il->stations[sta_id].lq = NULL;
-	}
-
-	il->stations[sta_id].used &= ~IL_STA_DRIVER_ACTIVE;
-
-	il->num_stations--;
-
-	BUG_ON(il->num_stations < 0);
-
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return il_send_remove_station(il, addr, sta_id, false);
-out_err:
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-	return -EINVAL;
-}
-EXPORT_SYMBOL_GPL(il_remove_station);
-
-/**
- * il_clear_ucode_stations - clear ucode station table bits
- *
- * This function clears all the bits in the driver indicating
- * which stations are active in the ucode. Call when something
- * other than explicit station management would cause this in
- * the ucode, e.g. unassociated RXON.
- */
-void il_clear_ucode_stations(struct il_priv *il,
-			      struct il_rxon_context *ctx)
-{
-	int i;
-	unsigned long flags_spin;
-	bool cleared = false;
-
-	D_INFO("Clearing ucode stations in driver\n");
-
-	spin_lock_irqsave(&il->sta_lock, flags_spin);
-	for (i = 0; i < il->hw_params.max_stations; i++) {
-		if (ctx && ctx->ctxid != il->stations[i].ctxid)
-			continue;
-
-		if (il->stations[i].used & IL_STA_UCODE_ACTIVE) {
-			D_INFO(
-				"Clearing ucode active for station %d\n", i);
-			il->stations[i].used &= ~IL_STA_UCODE_ACTIVE;
-			cleared = true;
-		}
-	}
-	spin_unlock_irqrestore(&il->sta_lock, flags_spin);
-
-	if (!cleared)
-		D_INFO(
-			"No active stations found to be cleared\n");
-}
-EXPORT_SYMBOL(il_clear_ucode_stations);
-
-/**
- * il_restore_stations() - Restore driver known stations to device
- *
- * All stations considered active by driver, but not present in ucode, is
- * restored.
- *
- * Function sleeps.
- */
-void
-il_restore_stations(struct il_priv *il, struct il_rxon_context *ctx)
-{
-	struct il_addsta_cmd sta_cmd;
-	struct il_link_quality_cmd lq;
-	unsigned long flags_spin;
-	int i;
-	bool found = false;
-	int ret;
-	bool send_lq;
-
-	if (!il_is_ready(il)) {
-		D_INFO(
-			"Not ready yet, not restoring any stations.\n");
-		return;
-	}
-
-	D_ASSOC("Restoring all known stations ... start.\n");
-	spin_lock_irqsave(&il->sta_lock, flags_spin);
-	for (i = 0; i < il->hw_params.max_stations; i++) {
-		if (ctx->ctxid != il->stations[i].ctxid)
-			continue;
-		if ((il->stations[i].used & IL_STA_DRIVER_ACTIVE) &&
-		    !(il->stations[i].used & IL_STA_UCODE_ACTIVE)) {
-			D_ASSOC("Restoring sta %pM\n",
-					il->stations[i].sta.sta.addr);
-			il->stations[i].sta.mode = 0;
-			il->stations[i].used |= IL_STA_UCODE_INPROGRESS;
-			found = true;
-		}
-	}
-
-	for (i = 0; i < il->hw_params.max_stations; i++) {
-		if ((il->stations[i].used & IL_STA_UCODE_INPROGRESS)) {
-			memcpy(&sta_cmd, &il->stations[i].sta,
-			       sizeof(struct il_addsta_cmd));
-			send_lq = false;
-			if (il->stations[i].lq) {
-				memcpy(&lq, il->stations[i].lq,
-				       sizeof(struct il_link_quality_cmd));
-				send_lq = true;
-			}
-			spin_unlock_irqrestore(&il->sta_lock, flags_spin);
-			ret = il_send_add_sta(il, &sta_cmd, CMD_SYNC);
-			if (ret) {
-				spin_lock_irqsave(&il->sta_lock, flags_spin);
-				IL_ERR("Adding station %pM failed.\n",
-					il->stations[i].sta.sta.addr);
-				il->stations[i].used &=
-						~IL_STA_DRIVER_ACTIVE;
-				il->stations[i].used &=
-						~IL_STA_UCODE_INPROGRESS;
-				spin_unlock_irqrestore(&il->sta_lock,
-								flags_spin);
-			}
-			/*
-			 * Rate scaling has already been initialized, send
-			 * current LQ command
-			 */
-			if (send_lq)
-				il_send_lq_cmd(il, ctx, &lq,
-								CMD_SYNC, true);
-			spin_lock_irqsave(&il->sta_lock, flags_spin);
-			il->stations[i].used &= ~IL_STA_UCODE_INPROGRESS;
-		}
-	}
-
-	spin_unlock_irqrestore(&il->sta_lock, flags_spin);
-	if (!found)
-		D_INFO("Restoring all known stations"
-				" .... no stations to be restored.\n");
-	else
-		D_INFO("Restoring all known stations"
-				" .... complete.\n");
-}
-EXPORT_SYMBOL(il_restore_stations);
-
-int il_get_free_ucode_key_idx(struct il_priv *il)
-{
-	int i;
-
-	for (i = 0; i < il->sta_key_max_num; i++)
-		if (!test_and_set_bit(i, &il->ucode_key_table))
-			return i;
-
-	return WEP_INVALID_OFFSET;
-}
-EXPORT_SYMBOL(il_get_free_ucode_key_idx);
-
-void il_dealloc_bcast_stations(struct il_priv *il)
-{
-	unsigned long flags;
-	int i;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	for (i = 0; i < il->hw_params.max_stations; i++) {
-		if (!(il->stations[i].used & IL_STA_BCAST))
-			continue;
-
-		il->stations[i].used &= ~IL_STA_UCODE_ACTIVE;
-		il->num_stations--;
-		BUG_ON(il->num_stations < 0);
-		kfree(il->stations[i].lq);
-		il->stations[i].lq = NULL;
-	}
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-}
-EXPORT_SYMBOL_GPL(il_dealloc_bcast_stations);
-
-#ifdef CONFIG_IWLEGACY_DEBUG
-static void il_dump_lq_cmd(struct il_priv *il,
-			   struct il_link_quality_cmd *lq)
-{
-	int i;
-	D_RATE("lq station id 0x%x\n", lq->sta_id);
-	D_RATE("lq ant 0x%X 0x%X\n",
-		       lq->general_params.single_stream_ant_msk,
-		       lq->general_params.dual_stream_ant_msk);
-
-	for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
-		D_RATE("lq idx %d 0x%X\n",
-			       i, lq->rs_table[i].rate_n_flags);
-}
-#else
-static inline void il_dump_lq_cmd(struct il_priv *il,
-				   struct il_link_quality_cmd *lq)
-{
-}
-#endif
-
-/**
- * il_is_lq_table_valid() - Test one aspect of LQ cmd for validity
- *
- * It sometimes happens when a HT rate has been in use and we
- * loose connectivity with AP then mac80211 will first tell us that the
- * current channel is not HT anymore before removing the station. In such a
- * scenario the RXON flags will be updated to indicate we are not
- * communicating HT anymore, but the LQ command may still contain HT rates.
- * Test for this to prevent driver from sending LQ command between the time
- * RXON flags are updated and when LQ command is updated.
- */
-static bool il_is_lq_table_valid(struct il_priv *il,
-			      struct il_rxon_context *ctx,
-			      struct il_link_quality_cmd *lq)
-{
-	int i;
-
-	if (ctx->ht.enabled)
-		return true;
-
-	D_INFO("Channel %u is not an HT channel\n",
-		       ctx->active.channel);
-	for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
-		if (le32_to_cpu(lq->rs_table[i].rate_n_flags) &
-						RATE_MCS_HT_MSK) {
-			D_INFO(
-				       "idx %d of LQ expects HT channel\n",
-				       i);
-			return false;
-		}
-	}
-	return true;
-}
-
-/**
- * il_send_lq_cmd() - Send link quality command
- * @init: This command is sent as part of station initialization right
- *        after station has been added.
- *
- * The link quality command is sent as the last step of station creation.
- * This is the special case in which init is set and we call a callback in
- * this case to clear the state indicating that station creation is in
- * progress.
- */
-int il_send_lq_cmd(struct il_priv *il, struct il_rxon_context *ctx,
-		    struct il_link_quality_cmd *lq, u8 flags, bool init)
-{
-	int ret = 0;
-	unsigned long flags_spin;
-
-	struct il_host_cmd cmd = {
-		.id = C_TX_LINK_QUALITY_CMD,
-		.len = sizeof(struct il_link_quality_cmd),
-		.flags = flags,
-		.data = lq,
-	};
-
-	if (WARN_ON(lq->sta_id == IL_INVALID_STATION))
-		return -EINVAL;
-
-
-	spin_lock_irqsave(&il->sta_lock, flags_spin);
-	if (!(il->stations[lq->sta_id].used & IL_STA_DRIVER_ACTIVE)) {
-		spin_unlock_irqrestore(&il->sta_lock, flags_spin);
-		return -EINVAL;
-	}
-	spin_unlock_irqrestore(&il->sta_lock, flags_spin);
-
-	il_dump_lq_cmd(il, lq);
-	BUG_ON(init && (cmd.flags & CMD_ASYNC));
-
-	if (il_is_lq_table_valid(il, ctx, lq))
-		ret = il_send_cmd(il, &cmd);
-	else
-		ret = -EINVAL;
-
-	if (cmd.flags & CMD_ASYNC)
-		return ret;
-
-	if (init) {
-		D_INFO("init LQ command complete,"
-				" clearing sta addition status for sta %d\n",
-			       lq->sta_id);
-		spin_lock_irqsave(&il->sta_lock, flags_spin);
-		il->stations[lq->sta_id].used &= ~IL_STA_UCODE_INPROGRESS;
-		spin_unlock_irqrestore(&il->sta_lock, flags_spin);
-	}
-	return ret;
-}
-EXPORT_SYMBOL(il_send_lq_cmd);
-
-int il_mac_sta_remove(struct ieee80211_hw *hw,
-		       struct ieee80211_vif *vif,
-		       struct ieee80211_sta *sta)
-{
-	struct il_priv *il = hw->priv;
-	struct il_station_priv_common *sta_common = (void *)sta->drv_priv;
-	int ret;
-
-	D_INFO("received request to remove station %pM\n",
-			sta->addr);
-	mutex_lock(&il->mutex);
-	D_INFO("proceeding to remove station %pM\n",
-			sta->addr);
-	ret = il_remove_station(il, sta_common->sta_id, sta->addr);
-	if (ret)
-		IL_ERR("Error removing station %pM\n",
-			sta->addr);
-	mutex_unlock(&il->mutex);
-	return ret;
-}
-EXPORT_SYMBOL(il_mac_sta_remove);