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

Conflicts:
	drivers/staging/ath6kl/miscdrv/ar3kps/ar3kpsparser.c
	drivers/staging/ath6kl/os/linux/ar6000_drv.c

10 files changed, 489 insertions, 1669 deletions

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index 352d2c5da1f..6fd53e4e3fe 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -547,7 +547,7 @@ mwifiex_dump_station_info(struct mwifiex_private *priv,
 	sinfo->tx_bytes = priv->stats.tx_bytes;
 	sinfo->rx_packets = priv->stats.rx_packets;
 	sinfo->tx_packets = priv->stats.tx_packets;
-	sinfo->signal = priv->w_stats.qual.level;
+	sinfo->signal = priv->qual_level;
 	sinfo->txrate.legacy = rate.rate;
 
 	return ret;
@@ -793,139 +793,6 @@ static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
 }
 
 /*
- * This function informs the CFG802.11 subsystem of a new BSS connection.
- *
- * The following information are sent to the CFG802.11 subsystem
- * to register the new BSS connection. If we do not register the new BSS,
- * a kernel panic will result.
- *      - MAC address
- *      - Capabilities
- *      - Beacon period
- *      - RSSI value
- *      - Channel
- *      - Supported rates IE
- *      - Extended capabilities IE
- *      - DS parameter set IE
- *      - HT Capability IE
- *      - Vendor Specific IE (221)
- *      - WPA IE
- *      - RSN IE
- */
-static int mwifiex_inform_bss_from_scan_result(struct mwifiex_private *priv,
-					       struct mwifiex_802_11_ssid *ssid)
-{
-	struct mwifiex_bssdescriptor *scan_table;
-	int i, j;
-	struct ieee80211_channel *chan;
-	u8 *ie, *ie_buf;
-	u32 ie_len;
-	u8 *beacon;
-	int beacon_size;
-	u8 element_id, element_len;
-
-#define MAX_IE_BUF	2048
-	ie_buf = kzalloc(MAX_IE_BUF, GFP_KERNEL);
-	if (!ie_buf) {
-		dev_err(priv->adapter->dev, "%s: failed to alloc ie_buf\n",
-						__func__);
-		return -ENOMEM;
-	}
-
-	scan_table = priv->adapter->scan_table;
-	for (i = 0; i < priv->adapter->num_in_scan_table; i++) {
-		if (ssid) {
-			/* Inform specific BSS only */
-			if (memcmp(ssid->ssid, scan_table[i].ssid.ssid,
-					   ssid->ssid_len))
-				continue;
-		}
-		memset(ie_buf, 0, MAX_IE_BUF);
-		ie_buf[0] = WLAN_EID_SSID;
-		ie_buf[1] = scan_table[i].ssid.ssid_len;
-		memcpy(&ie_buf[sizeof(struct ieee_types_header)],
-		       scan_table[i].ssid.ssid, ie_buf[1]);
-
-		ie = ie_buf + ie_buf[1] + sizeof(struct ieee_types_header);
-		ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
-
-		ie[0] = WLAN_EID_SUPP_RATES;
-
-		for (j = 0; j < sizeof(scan_table[i].supported_rates); j++) {
-			if (!scan_table[i].supported_rates[j])
-				break;
-			else
-				ie[j + sizeof(struct ieee_types_header)] =
-					scan_table[i].supported_rates[j];
-		}
-
-		ie[1] = j;
-		ie_len += ie[1] + sizeof(struct ieee_types_header);
-
-		beacon = scan_table[i].beacon_buf;
-		beacon_size = scan_table[i].beacon_buf_size;
-
-		/* Skip time stamp, beacon interval and capability */
-
-		if (beacon) {
-			beacon += sizeof(scan_table[i].beacon_period)
-				+ sizeof(scan_table[i].time_stamp) +
-				+sizeof(scan_table[i].cap_info_bitmap);
-
-			beacon_size -= sizeof(scan_table[i].beacon_period)
-				+ sizeof(scan_table[i].time_stamp)
-				+ sizeof(scan_table[i].cap_info_bitmap);
-		}
-
-		while (beacon_size >= sizeof(struct ieee_types_header)) {
-			ie = ie_buf + ie_len;
-			element_id = *beacon;
-			element_len = *(beacon + 1);
-			if (beacon_size < (int) element_len +
-			    sizeof(struct ieee_types_header)) {
-				dev_err(priv->adapter->dev, "%s: in processing"
-					" IE, bytes left < IE length\n",
-					__func__);
-				break;
-			}
-			switch (element_id) {
-			case WLAN_EID_EXT_CAPABILITY:
-			case WLAN_EID_DS_PARAMS:
-			case WLAN_EID_HT_CAPABILITY:
-			case WLAN_EID_VENDOR_SPECIFIC:
-			case WLAN_EID_RSN:
-			case WLAN_EID_BSS_AC_ACCESS_DELAY:
-				ie[0] = element_id;
-				ie[1] = element_len;
-				memcpy(&ie[sizeof(struct ieee_types_header)],
-				       (u8 *) beacon
-				       + sizeof(struct ieee_types_header),
-				       element_len);
-				ie_len += ie[1] +
-					sizeof(struct ieee_types_header);
-				break;
-			default:
-				break;
-			}
-			beacon += element_len +
-					sizeof(struct ieee_types_header);
-			beacon_size -= element_len +
-					sizeof(struct ieee_types_header);
-		}
-		chan = ieee80211_get_channel(priv->wdev->wiphy,
-						scan_table[i].freq);
-		cfg80211_inform_bss(priv->wdev->wiphy, chan,
-					scan_table[i].mac_address,
-					0, scan_table[i].cap_info_bitmap,
-					scan_table[i].beacon_period,
-					ie_buf, ie_len,
-					scan_table[i].rssi, GFP_KERNEL);
-	}
-
-	kfree(ie_buf);
-	return 0;
-}
-
-/*
  * This function connects with a BSS.
  *
  * This function handles both Infra and Ad-Hoc modes. It also performs
@@ -937,8 +804,7 @@ static int mwifiex_inform_bss_from_scan_result(struct mwifiex_private *priv,
  * For Infra mode, the function returns failure if the specified SSID
  * is not found in scan table. However, for Ad-Hoc mode, it can create
  * the IBSS if it does not exist. On successful completion in either case,
- * the function notifies the CFG802.11 subsystem of the new BSS connection,
- * otherwise the kernel will panic.
+ * the function notifies the CFG802.11 subsystem of the new BSS connection.
  */
 static int
 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
@@ -946,11 +812,11 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
 		       struct cfg80211_connect_params *sme, bool privacy)
 {
 	struct mwifiex_802_11_ssid req_ssid;
-	struct mwifiex_ssid_bssid ssid_bssid;
 	int ret, auth_type = 0;
+	struct cfg80211_bss *bss = NULL;
+	u8 is_scanning_required = 0;
 
 	memset(&req_ssid, 0, sizeof(struct mwifiex_802_11_ssid));
-	memset(&ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid));
 
 	req_ssid.ssid_len = ssid_len;
 	if (ssid_len > IEEE80211_MAX_SSID_LEN) {
@@ -1028,30 +894,48 @@ done:
 		return -EFAULT;
 	}
 
+	/*
+	 * Scan entries are valid for some time (15 sec). So we can save one
+	 * active scan time if we just try cfg80211_get_bss first. If it fails
+	 * then request scan and cfg80211_get_bss() again for final output.
+	 */
+	while (1) {
+		if (is_scanning_required) {
+			/* Do specific SSID scanning */
+			if (mwifiex_request_scan(priv, &req_ssid)) {
+				dev_err(priv->adapter->dev, "scan error\n");
+				return -EFAULT;
+			}
+		}
 
-	memcpy(&ssid_bssid.ssid, &req_ssid, sizeof(struct mwifiex_802_11_ssid));
-
-	if (mode != NL80211_IFTYPE_ADHOC) {
-		if (mwifiex_find_best_bss(priv, &ssid_bssid))
-			return -EFAULT;
-		/* Inform the BSS information to kernel, otherwise
-		 * kernel will give a panic after successful assoc */
-		if (mwifiex_inform_bss_from_scan_result(priv, &req_ssid))
-			return -EFAULT;
+		/* Find the BSS we want using available scan results */
+		if (mode == NL80211_IFTYPE_ADHOC)
+			bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
+					       bssid, ssid, ssid_len,
+					       WLAN_CAPABILITY_IBSS,
+					       WLAN_CAPABILITY_IBSS);
+		else
+			bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
+					       bssid, ssid, ssid_len,
+					       WLAN_CAPABILITY_ESS,
+					       WLAN_CAPABILITY_ESS);
+
+		if (!bss) {
+			if (is_scanning_required) {
+				dev_warn(priv->adapter->dev, "assoc: requested "
+					 "bss not found in scan results\n");
+				break;
+			}
+			is_scanning_required = 1;
+		} else {
+			dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n",
+					(char *) req_ssid.ssid, bss->bssid);
+			memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
+			break;
+		}
 	}
 
-	dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n",
-	       (char *) req_ssid.ssid, ssid_bssid.bssid);
-
-	memcpy(&priv->cfg_bssid, ssid_bssid.bssid, 6);
-
-	/* Connect to BSS by ESSID */
-	memset(&ssid_bssid.bssid, 0, ETH_ALEN);
-
-	if (!netif_queue_stopped(priv->netdev))
-		netif_stop_queue(priv->netdev);
-
-	if (mwifiex_bss_start(priv, &ssid_bssid))
+	if (mwifiex_bss_start(priv, bss, &req_ssid))
 		return -EFAULT;
 
 	if (mode == NL80211_IFTYPE_ADHOC) {
@@ -1416,13 +1300,8 @@ mwifiex_cfg80211_results(struct work_struct *work)
 					MWIFIEX_SCAN_TYPE_ACTIVE;
 			scan_req->chan_list[i].scan_time = 0;
 		}
-		if (mwifiex_set_user_scan_ioctl(priv, scan_req)) {
+		if (mwifiex_set_user_scan_ioctl(priv, scan_req))
 			ret = -EFAULT;
-			goto done;
-		}
-		if (mwifiex_inform_bss_from_scan_result(priv, NULL))
-			ret = -EFAULT;
-done:
 		priv->scan_result_status = ret;
 		dev_dbg(priv->adapter->dev, "info: %s: sending scan results\n",
 							__func__);
diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index 4fee0993b18..f23ec72ed4f 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -821,6 +821,14 @@ struct host_cmd_ds_txpwr_cfg {
 	__le32 mode;
 } __packed;
 
+struct mwifiex_bcn_param {
+	u8 bssid[ETH_ALEN];
+	u8 rssi;
+	__le32 timestamp[2];
+	__le16 beacon_period;
+	__le16 cap_info_bitmap;
+} __packed;
+
 #define MWIFIEX_USER_SCAN_CHAN_MAX             50
 
 #define MWIFIEX_MAX_SSID_LIST_LENGTH         10
@@ -862,13 +870,6 @@ struct mwifiex_user_scan_ssid {
 
 struct mwifiex_user_scan_cfg {
 	/*
-	 *  Flag set to keep the previous scan table intact
-	 *
-	 *  If set, the scan results will accumulate, replacing any previous
-	 *   matched entries for a BSS with the new scan data
-	 */
-	u8 keep_previous_scan;
-	/*
 	 *  BSS mode to be sent in the firmware command
 	 */
 	u8 bss_mode;
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index 3f1559e6132..26e685a31bc 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -152,19 +152,6 @@ static int mwifiex_init_priv(struct mwifiex_private *priv)
 static int mwifiex_allocate_adapter(struct mwifiex_adapter *adapter)
 {
 	int ret;
-	u32 buf_size;
-	struct mwifiex_bssdescriptor *temp_scan_table;
-
-	/* Allocate buffer to store the BSSID list */
-	buf_size = sizeof(struct mwifiex_bssdescriptor) * IW_MAX_AP;
-	temp_scan_table = kzalloc(buf_size, GFP_KERNEL);
-	if (!temp_scan_table) {
-		dev_err(adapter->dev, "%s: failed to alloc temp_scan_table\n",
-		       __func__);
-		return -ENOMEM;
-	}
-
-	adapter->scan_table = temp_scan_table;
 
 	/* Allocate command buffer */
 	ret = mwifiex_alloc_cmd_buffer(adapter);
@@ -222,14 +209,8 @@ static void mwifiex_init_adapter(struct mwifiex_adapter *adapter)
 	adapter->active_scan_time = MWIFIEX_ACTIVE_SCAN_CHAN_TIME;
 	adapter->passive_scan_time = MWIFIEX_PASSIVE_SCAN_CHAN_TIME;
 
-	adapter->num_in_scan_table = 0;
-	memset(adapter->scan_table, 0,
-	       (sizeof(struct mwifiex_bssdescriptor) * IW_MAX_AP));
 	adapter->scan_probes = 1;
 
-	memset(adapter->bcn_buf, 0, sizeof(adapter->bcn_buf));
-	adapter->bcn_buf_end = adapter->bcn_buf;
-
 	adapter->multiple_dtim = 1;
 
 	adapter->local_listen_interval = 0;	/* default value in firmware
@@ -326,8 +307,6 @@ mwifiex_free_adapter(struct mwifiex_adapter *adapter)
 	del_timer(&adapter->cmd_timer);
 
 	dev_dbg(adapter->dev, "info: free scan table\n");
-	kfree(adapter->scan_table);
-	adapter->scan_table = NULL;
 
 	adapter->if_ops.cleanup_if(adapter);
 
diff --git a/drivers/net/wireless/mwifiex/ioctl.h b/drivers/net/wireless/mwifiex/ioctl.h
index f6bcc868562..e0b68e7c8ca 100644
--- a/drivers/net/wireless/mwifiex/ioctl.h
+++ b/drivers/net/wireless/mwifiex/ioctl.h
@@ -134,7 +134,6 @@ struct mwifiex_ver_ext {
 struct mwifiex_bss_info {
 	u32 bss_mode;
 	struct mwifiex_802_11_ssid ssid;
-	u32 scan_table_idx;
 	u32 bss_chan;
 	u32 region_code;
 	u32 media_connected;
@@ -307,10 +306,12 @@ struct mwifiex_ds_read_eeprom {
 	u8 value[MAX_EEPROM_DATA];
 };
 
+#define IEEE_MAX_IE_SIZE		256
+
 struct mwifiex_ds_misc_gen_ie {
 	u32 type;
 	u32 len;
-	u8 ie_data[IW_CUSTOM_MAX];
+	u8 ie_data[IEEE_MAX_IE_SIZE];
 };
 
 struct mwifiex_ds_misc_cmd {
diff --git a/drivers/net/wireless/mwifiex/join.c b/drivers/net/wireless/mwifiex/join.c
index 644e2e405cb..5cdad92277f 100644
--- a/drivers/net/wireless/mwifiex/join.c
+++ b/drivers/net/wireless/mwifiex/join.c
@@ -224,32 +224,6 @@ mwifiex_setup_rates_from_bssdesc(struct mwifiex_private *priv,
 }
 
 /*
- * This function updates the scan entry TSF timestamps to reflect
- * a new association.
- */
-static void
-mwifiex_update_tsf_timestamps(struct mwifiex_private *priv,
-			      struct mwifiex_bssdescriptor *new_bss_desc)
-{
-	struct mwifiex_adapter *adapter = priv->adapter;
-	u32 table_idx;
-	long long new_tsf_base;
-	signed long long tsf_delta;
-
-	memcpy(&new_tsf_base, new_bss_desc->time_stamp, sizeof(new_tsf_base));
-
-	tsf_delta = new_tsf_base - new_bss_desc->network_tsf;
-
-	dev_dbg(adapter->dev, "info: TSF: update TSF timestamps, "
-		"0x%016llx -> 0x%016llx\n",
-	       new_bss_desc->network_tsf, new_tsf_base);
-
-	for (table_idx = 0; table_idx < adapter->num_in_scan_table;
-	     table_idx++)
-		adapter->scan_table[table_idx].network_tsf += tsf_delta;
-}
-
-/*
  * This function appends a WAPI IE.
  *
  * This function is called from the network join command preparation routine.
@@ -639,12 +613,6 @@ int mwifiex_ret_802_11_associate(struct mwifiex_private *priv,
 
 	priv->curr_bss_params.band = (u8) bss_desc->bss_band;
 
-	/*
-	 * Adjust the timestamps in the scan table to be relative to the newly
-	 * associated AP's TSF
-	 */
-	mwifiex_update_tsf_timestamps(priv, bss_desc);
-
 	if (bss_desc->wmm_ie.vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC)
 		priv->curr_bss_params.wmm_enabled = true;
 	else
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 0415e3d1c31..48b4d95219f 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -849,6 +849,7 @@ mwifiex_add_card(void *card, struct semaphore *sem,
 {
 	int i;
 	struct mwifiex_adapter *adapter;
+	char fmt[64];
 
 	if (down_interruptible(sem))
 		goto exit_sem_err;
@@ -897,6 +898,9 @@ mwifiex_add_card(void *card, struct semaphore *sem,
 
 	up(sem);
 
+	mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1);
+	dev_notice(adapter->dev, "driver_version = %s\n", fmt);
+
 	return 0;
 
 err_add_intf:
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 2215c3c9735..e6b6c0cfb63 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -54,6 +54,8 @@ struct mwifiex_drv_mode {
 };
 
 
+#define MWIFIEX_MAX_AP				64
+
 #define MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT	(5 * HZ)
 
 #define MWIFIEX_TIMER_10S			10000
@@ -227,27 +229,10 @@ struct ieee_types_header {
 	u8 len;
 } __packed;
 
-struct ieee_obss_scan_param {
-	u16 obss_scan_passive_dwell;
-	u16 obss_scan_active_dwell;
-	u16 bss_chan_width_trigger_scan_int;
-	u16 obss_scan_passive_total;
-	u16 obss_scan_active_total;
-	u16 bss_width_chan_trans_delay;
-	u16 obss_scan_active_threshold;
-} __packed;
-
-struct ieee_types_obss_scan_param {
-	struct ieee_types_header ieee_hdr;
-	struct ieee_obss_scan_param obss_scan;
-} __packed;
-
 #define MWIFIEX_SUPPORTED_RATES                 14
 
 #define MWIFIEX_SUPPORTED_RATES_EXT             32
 
-#define IEEE_MAX_IE_SIZE			256
-
 struct ieee_types_vendor_specific {
 	struct ieee_types_vendor_header vend_hdr;
 	u8 data[IEEE_MAX_IE_SIZE - sizeof(struct ieee_types_vendor_header)];
@@ -291,8 +276,6 @@ struct mwifiex_bssdescriptor {
 	u16 bss_co_2040_offset;
 	u8 *bcn_ext_cap;
 	u16 ext_cap_offset;
-	struct ieee_types_obss_scan_param *bcn_obss_scan;
-	u16 overlap_bss_offset;
 	struct ieee_types_vendor_specific *bcn_wpa_ie;
 	u16 wpa_offset;
 	struct ieee_types_generic *bcn_rsn_ie;
@@ -301,8 +284,6 @@ struct mwifiex_bssdescriptor {
 	u16 wapi_offset;
 	u8 *beacon_buf;
 	u32 beacon_buf_size;
-	u32 beacon_buf_size_max;
-
 };
 
 struct mwifiex_current_bss_params {
@@ -468,7 +449,7 @@ struct mwifiex_private {
 	struct dentry *dfs_dev_dir;
 #endif
 	u8 nick_name[16];
-	struct iw_statistics w_stats;
+	u8 qual_level, qual_noise;
 	u16 current_key_index;
 	struct semaphore async_sem;
 	u8 scan_pending_on_block;
@@ -624,15 +605,11 @@ struct mwifiex_adapter {
 	u32 scan_processing;
 	u16 region_code;
 	struct mwifiex_802_11d_domain_reg domain_reg;
-	struct mwifiex_bssdescriptor *scan_table;
-	u32 num_in_scan_table;
 	u16 scan_probes;
 	u32 scan_mode;
 	u16 specific_scan_time;
 	u16 active_scan_time;
 	u16 passive_scan_time;
-	u8 bcn_buf[MAX_SCAN_BEACON_BUFFER];
-	u8 *bcn_buf_end;
 	u8 fw_bands;
 	u8 adhoc_start_band;
 	u8 config_bands;
@@ -765,13 +742,6 @@ void mwifiex_queue_scan_cmd(struct mwifiex_private *priv,
 			    struct cmd_ctrl_node *cmd_node);
 int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 			    struct host_cmd_ds_command *resp);
-s32 mwifiex_find_ssid_in_list(struct mwifiex_private *priv,
-				struct mwifiex_802_11_ssid *ssid, u8 *bssid,
-				u32 mode);
-s32 mwifiex_find_bssid_in_list(struct mwifiex_private *priv, u8 *bssid,
-				 u32 mode);
-int mwifiex_find_best_network(struct mwifiex_private *priv,
-			      struct mwifiex_ssid_bssid *req_ssid_bssid);
 s32 mwifiex_ssid_cmp(struct mwifiex_802_11_ssid *ssid1,
 		       struct mwifiex_802_11_ssid *ssid2);
 int mwifiex_associate(struct mwifiex_private *priv,
@@ -782,7 +752,6 @@ int mwifiex_cmd_802_11_associate(struct mwifiex_private *priv,
 int mwifiex_ret_802_11_associate(struct mwifiex_private *priv,
 				 struct host_cmd_ds_command *resp);
 void mwifiex_reset_connect_state(struct mwifiex_private *priv);
-void mwifiex_2040_coex_event(struct mwifiex_private *priv);
 u8 mwifiex_band_to_radio_type(u8 band);
 int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac);
 int mwifiex_adhoc_start(struct mwifiex_private *priv,
@@ -922,8 +891,8 @@ int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
 int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
 			    struct net_device *dev);
 int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter);
-int mwifiex_bss_start(struct mwifiex_private *priv,
-		      struct mwifiex_ssid_bssid *ssid_bssid);
+int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
+		      struct mwifiex_802_11_ssid *req_ssid);
 int mwifiex_set_hs_params(struct mwifiex_private *priv,
 			      u16 action, int cmd_type,
 			      struct mwifiex_ds_hs_cfg *hscfg);
@@ -934,8 +903,6 @@ int mwifiex_get_signal_info(struct mwifiex_private *priv,
 			    struct mwifiex_ds_get_signal *signal);
 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv,
 			      struct mwifiex_rate_cfg *rate);
-int mwifiex_find_best_bss(struct mwifiex_private *priv,
-			  struct mwifiex_ssid_bssid *ssid_bssid);
 int mwifiex_request_scan(struct mwifiex_private *priv,
 			 struct mwifiex_802_11_ssid *req_ssid);
 int mwifiex_set_user_scan_ioctl(struct mwifiex_private *priv,
@@ -984,12 +951,20 @@ int mwifiex_main_process(struct mwifiex_adapter *);
 
 int mwifiex_bss_set_channel(struct mwifiex_private *,
 			    struct mwifiex_chan_freq_power *cfp);
-int mwifiex_bss_ioctl_find_bss(struct mwifiex_private *,
-			       struct mwifiex_ssid_bssid *);
 int mwifiex_set_radio_band_cfg(struct mwifiex_private *,
 			 struct mwifiex_ds_band_cfg *);
 int mwifiex_get_bss_info(struct mwifiex_private *,
 			 struct mwifiex_bss_info *);
+int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
+			      u8 *bssid, s32 rssi, u8 *ie_buf,
+			      size_t ie_len, u16 beacon_period,
+			      u16 cap_info_bitmap,
+			      struct mwifiex_bssdescriptor *bss_desc);
+int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
+				struct mwifiex_bssdescriptor *bss_entry,
+				u8 *ie_buf, u32 ie_len);
+int mwifiex_check_network_compatibility(struct mwifiex_private *priv,
+					struct mwifiex_bssdescriptor *bss_desc);
 
 #ifdef CONFIG_DEBUG_FS
 void mwifiex_debugfs_init(void);
diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 6f88c8ab5de..b28241c6e73 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -172,36 +172,6 @@ mwifiex_ssid_cmp(struct mwifiex_802_11_ssid *ssid1,
 }
 
 /*
- * Sends IOCTL request to get the best BSS.
- *
- * This function allocates the IOCTL request buffer, fills it
- * with requisite parameters and calls the IOCTL handler.
- */
-int mwifiex_find_best_bss(struct mwifiex_private *priv,
-			  struct mwifiex_ssid_bssid *ssid_bssid)
-{
-	struct mwifiex_ssid_bssid tmp_ssid_bssid;
-	u8 *mac;
-
-	if (!ssid_bssid)
-		return -1;
-
-	memcpy(&tmp_ssid_bssid, ssid_bssid,
-	       sizeof(struct mwifiex_ssid_bssid));
-
-	if (!mwifiex_bss_ioctl_find_bss(priv, &tmp_ssid_bssid)) {
-		memcpy(ssid_bssid, &tmp_ssid_bssid,
-		       sizeof(struct mwifiex_ssid_bssid));
-		mac = (u8 *) &ssid_bssid->bssid;
-		dev_dbg(priv->adapter->dev, "cmd: found network: ssid=%s,"
-				" %pM\n", ssid_bssid->ssid.ssid, mac);
-		return 0;
-	}
-
-	return -1;
-}
-
-/*
  * Sends IOCTL request to start a scan with user configurations.
  *
  * This function allocates the IOCTL request buffer, fills it
@@ -286,8 +256,7 @@ mwifiex_is_network_compatible_for_static_wep(struct mwifiex_private *priv,
  */
 static bool
 mwifiex_is_network_compatible_for_wpa(struct mwifiex_private *priv,
-				      struct mwifiex_bssdescriptor *bss_desc,
-				      int index)
+				      struct mwifiex_bssdescriptor *bss_desc)
 {
 	if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED
 	    && priv->sec_info.wpa_enabled && !priv->sec_info.wpa2_enabled
@@ -298,9 +267,9 @@ mwifiex_is_network_compatible_for_wpa(struct mwifiex_private *priv,
 	    * LinkSys WRT54G && bss_desc->privacy
 	    */
 	 ) {
-		dev_dbg(priv->adapter->dev, "info: %s: WPA: index=%d"
+		dev_dbg(priv->adapter->dev, "info: %s: WPA:"
 			" wpa_ie=%#x wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s "
-			"EncMode=%#x privacy=%#x\n", __func__, index,
+			"EncMode=%#x privacy=%#x\n", __func__,
 			(bss_desc->bcn_wpa_ie) ?
 			(*(bss_desc->bcn_wpa_ie)).
 			vend_hdr.element_id : 0,
@@ -324,8 +293,7 @@ mwifiex_is_network_compatible_for_wpa(struct mwifiex_private *priv,
  */
 static bool
 mwifiex_is_network_compatible_for_wpa2(struct mwifiex_private *priv,
-				       struct mwifiex_bssdescriptor *bss_desc,
-				       int index)
+				       struct mwifiex_bssdescriptor *bss_desc)
 {
 	if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED
 	   && !priv->sec_info.wpa_enabled && priv->sec_info.wpa2_enabled
@@ -336,9 +304,9 @@ mwifiex_is_network_compatible_for_wpa2(struct mwifiex_private *priv,
 	    * LinkSys WRT54G && bss_desc->privacy
 	    */
 	 ) {
-		dev_dbg(priv->adapter->dev, "info: %s: WPA2: index=%d"
+		dev_dbg(priv->adapter->dev, "info: %s: WPA2: "
 			" wpa_ie=%#x wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s "
-			"EncMode=%#x privacy=%#x\n", __func__, index,
+			"EncMode=%#x privacy=%#x\n", __func__,
 			(bss_desc->bcn_wpa_ie) ?
 			(*(bss_desc->bcn_wpa_ie)).
 			vend_hdr.element_id : 0,
@@ -383,8 +351,7 @@ mwifiex_is_network_compatible_for_adhoc_aes(struct mwifiex_private *priv,
  */
 static bool
 mwifiex_is_network_compatible_for_dynamic_wep(struct mwifiex_private *priv,
-				       struct mwifiex_bssdescriptor *bss_desc,
-				       int index)
+				       struct mwifiex_bssdescriptor *bss_desc)
 {
 	if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED
 	    && !priv->sec_info.wpa_enabled && !priv->sec_info.wpa2_enabled
@@ -395,9 +362,9 @@ mwifiex_is_network_compatible_for_dynamic_wep(struct mwifiex_private *priv,
 	    && priv->sec_info.encryption_mode
 	    && bss_desc->privacy) {
 		dev_dbg(priv->adapter->dev, "info: %s: dynamic "
-			"WEP: index=%d wpa_ie=%#x wpa2_ie=%#x "
+			"WEP: wpa_ie=%#x wpa2_ie=%#x "
 			"EncMode=%#x privacy=%#x\n",
-			__func__, index,
+			__func__,
 			(bss_desc->bcn_wpa_ie) ?
 			(*(bss_desc->bcn_wpa_ie)).
 			vend_hdr.element_id : 0,
@@ -430,42 +397,41 @@ mwifiex_is_network_compatible_for_dynamic_wep(struct mwifiex_private *priv,
  * Compatibility is not matched while roaming, except for mode.
  */
 static s32
-mwifiex_is_network_compatible(struct mwifiex_private *priv, u32 index, u32 mode)
+mwifiex_is_network_compatible(struct mwifiex_private *priv,
+			      struct mwifiex_bssdescriptor *bss_desc, u32 mode)
 {
 	struct mwifiex_adapter *adapter = priv->adapter;
-	struct mwifiex_bssdescriptor *bss_desc;
 
-	bss_desc = &adapter->scan_table[index];
 	bss_desc->disable_11n = false;
 
 	/* Don't check for compatibility if roaming */
 	if (priv->media_connected && (priv->bss_mode == NL80211_IFTYPE_STATION)
 	    && (bss_desc->bss_mode == NL80211_IFTYPE_STATION))
-		return index;
+		return 0;
 
 	if (priv->wps.session_enable) {
 		dev_dbg(adapter->dev,
 			"info: return success directly in WPS period\n");
-		return index;
+		return 0;
 	}
 
 	if (mwifiex_is_network_compatible_for_wapi(priv, bss_desc)) {
 		dev_dbg(adapter->dev, "info: return success for WAPI AP\n");
-		return index;
+		return 0;
 	}
 
 	if (bss_desc->bss_mode == mode) {
 		if (mwifiex_is_network_compatible_for_no_sec(priv, bss_desc)) {
 			/* No security */
-			return index;
+			return 0;
 		} else if (mwifiex_is_network_compatible_for_static_wep(priv,
 								bss_desc)) {
 			/* Static WEP enabled */
 			dev_dbg(adapter->dev, "info: Disable 11n in WEP mode.\n");
 			bss_desc->disable_11n = true;
-			return index;
-		} else if (mwifiex_is_network_compatible_for_wpa(priv, bss_desc,
-								 index)) {
+			return 0;
+		} else if (mwifiex_is_network_compatible_for_wpa(priv,
+								 bss_desc)) {
 			/* WPA enabled */
 			if (((priv->adapter->config_bands & BAND_GN
 			      || priv->adapter->config_bands & BAND_AN)
@@ -483,9 +449,9 @@ mwifiex_is_network_compatible(struct mwifiex_private *priv, u32 index, u32 mode)
 					return -1;
 				}
 			}
-			return index;
+			return 0;
 		} else if (mwifiex_is_network_compatible_for_wpa2(priv,
-							bss_desc, index)) {
+							bss_desc)) {
 			/* WPA2 enabled */
 			if (((priv->adapter->config_bands & BAND_GN
 			      || priv->adapter->config_bands & BAND_AN)
@@ -503,22 +469,22 @@ mwifiex_is_network_compatible(struct mwifiex_private *priv, u32 index, u32 mode)
 					return -1;
 				}
 			}
-			return index;
+			return 0;
 		} else if (mwifiex_is_network_compatible_for_adhoc_aes(priv,
 								bss_desc)) {
 			/* Ad-hoc AES enabled */
-			return index;
+			return 0;
 		} else if (mwifiex_is_network_compatible_for_dynamic_wep(priv,
-							bss_desc, index)) {
+							bss_desc)) {
 			/* Dynamic WEP enabled */
-			return index;
+			return 0;
 		}
 
 		/* Security doesn't match */
-		dev_dbg(adapter->dev, "info: %s: failed: index=%d "
+		dev_dbg(adapter->dev, "info: %s: failed: "
 		       "wpa_ie=%#x wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s EncMode"
 		       "=%#x privacy=%#x\n",
-		       __func__, index,
+		       __func__,
 		       (bss_desc->bcn_wpa_ie) ?
 		       (*(bss_desc->bcn_wpa_ie)).vend_hdr.
 		       element_id : 0,
@@ -538,52 +504,6 @@ mwifiex_is_network_compatible(struct mwifiex_private *priv, u32 index, u32 mode)
 }
 
 /*
- * This function finds the best SSID in the scan list.
- *
- * It searches the scan table for the best SSID that also matches the current
- * adapter network preference (mode, security etc.).
- */
-static s32
-mwifiex_find_best_network_in_list(struct mwifiex_private *priv)
-{
-	struct mwifiex_adapter *adapter = priv->adapter;
-	u32 mode = priv->bss_mode;
-	s32 best_net = -1;
-	s32 best_rssi = 0;
-	u32 i;
-
-	dev_dbg(adapter->dev, "info: num of BSSIDs = %d\n",
-				adapter->num_in_scan_table);
-
-	for (i = 0; i < adapter->num_in_scan_table; i++) {
-		switch (mode) {
-		case NL80211_IFTYPE_STATION:
-		case NL80211_IFTYPE_ADHOC:
-			if (mwifiex_is_network_compatible(priv, i, mode) >= 0) {
-				if (SCAN_RSSI(adapter->scan_table[i].rssi) >
-				    best_rssi) {
-					best_rssi = SCAN_RSSI(adapter->
-							  scan_table[i].rssi);
-					best_net = i;
-				}
-			}
-			break;
-		case NL80211_IFTYPE_UNSPECIFIED:
-		default:
-			if (SCAN_RSSI(adapter->scan_table[i].rssi) >
-			    best_rssi) {
-				best_rssi = SCAN_RSSI(adapter->scan_table[i].
-						      rssi);
-				best_net = i;
-			}
-			break;
-		}
-	}
-
-	return best_net;
-}
-
-/*
  * This function creates a channel list for the driver to scan, based
  * on region/band information.
  *
@@ -1161,34 +1081,13 @@ mwifiex_ret_802_11_scan_get_tlv_ptrs(struct mwifiex_adapter *adapter,
 }
 
 /*
- * This function interprets a BSS scan response returned from the firmware.
- *
- * The various fixed fields and IEs are parsed and passed back for a BSS
- * probe response or beacon from scan command. Information is recorded as
- * needed in the scan table for that entry.
- *
- * The following IE types are recognized and parsed -
- *      - SSID
- *      - Supported rates
- *      - FH parameters set
- *      - DS parameters set
- *      - CF parameters set
- *      - IBSS parameters set
- *      - ERP information
- *      - Extended supported rates
- *      - Vendor specific (221)
- *      - RSN IE
- *      - WAPI IE
- *      - HT capability
- *      - HT operation
- *      - BSS Coexistence 20/40
- *      - Extended capability
- *      - Overlapping BSS scan parameters
+ * This function parses provided beacon buffer and updates
+ * respective fields in bss descriptor structure.
  */
-static int
-mwifiex_interpret_bss_desc_with_ie(struct mwifiex_adapter *adapter,
-				   struct mwifiex_bssdescriptor *bss_entry,
-				   u8 **beacon_info, u32 *bytes_left)
+int
+mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
+				struct mwifiex_bssdescriptor *bss_entry,
+				u8 *ie_buf, u32 ie_len)
 {
 	int ret = 0;
 	u8 element_id;
@@ -1196,135 +1095,43 @@ mwifiex_interpret_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 	struct ieee_types_ds_param_set *ds_param_set;
 	struct ieee_types_cf_param_set *cf_param_set;
 	struct ieee_types_ibss_param_set *ibss_param_set;
-	__le16 beacon_interval;
-	__le16 capabilities;
 	u8 *current_ptr;
 	u8 *rate;
 	u8 element_len;
 	u16 total_ie_len;
 	u8 bytes_to_copy;
 	u8 rate_size;
-	u16 beacon_size;
 	u8 found_data_rate_ie;
-	u32 bytes_left_for_current_beacon;
+	u32 bytes_left;
 	struct ieee_types_vendor_specific *vendor_ie;
 	const u8 wpa_oui[4] = { 0x00, 0x50, 0xf2, 0x01 };
 	const u8 wmm_oui[4] = { 0x00, 0x50, 0xf2, 0x02 };
 
 	found_data_rate_ie = false;
 	rate_size = 0;
-	beacon_size = 0;
-
-	if (*bytes_left >= sizeof(beacon_size)) {
-		/* Extract & convert beacon size from the command buffer */
-		memcpy(&beacon_size, *beacon_info, sizeof(beacon_size));
-		*bytes_left -= sizeof(beacon_size);
-		*beacon_info += sizeof(beacon_size);
-	}
-
-	if (!beacon_size || beacon_size > *bytes_left) {
-		*beacon_info += *bytes_left;
-		*bytes_left = 0;
-		return -1;
-	}
-
-	/* Initialize the current working beacon pointer for this BSS
-	   iteration */
-	current_ptr = *beacon_info;
-
-	/* Advance the return beacon pointer past the current beacon */
-	*beacon_info += beacon_size;
-	*bytes_left -= beacon_size;
-
-	bytes_left_for_current_beacon = beacon_size;
-
-	memcpy(bss_entry->mac_address, current_ptr, ETH_ALEN);
-	dev_dbg(adapter->dev, "info: InterpretIE: AP MAC Addr: %pM\n",
-						bss_entry->mac_address);
-
-	current_ptr += ETH_ALEN;
-	bytes_left_for_current_beacon -= ETH_ALEN;
-
-	if (bytes_left_for_current_beacon < 12) {
-		dev_err(adapter->dev, "InterpretIE: not enough bytes left\n");
-		return -1;
-	}
-
-	/*
-	 * Next 4 fields are RSSI, time stamp, beacon interval,
-	 *   and capability information
-	 */
-
-	/* RSSI is 1 byte long */
-	bss_entry->rssi = (s32) (*current_ptr);
-	dev_dbg(adapter->dev, "info: InterpretIE: RSSI=%02X\n", *current_ptr);
-	current_ptr += 1;
-	bytes_left_for_current_beacon -= 1;
-
-	/*
-	 *  The RSSI is not part of the beacon/probe response.  After we have
-	 *    advanced current_ptr past the RSSI field, save the remaining
-	 *    data for use at the application layer
-	 */
-	bss_entry->beacon_buf = current_ptr;
-	bss_entry->beacon_buf_size = bytes_left_for_current_beacon;
-
-	/* Time stamp is 8 bytes long */
-	memcpy(bss_entry->time_stamp, current_ptr, 8);
-	current_ptr += 8;
-	bytes_left_for_current_beacon -= 8;
-
-	/* Beacon interval is 2 bytes long */
-	memcpy(&beacon_interval, current_ptr, 2);
-	bss_entry->beacon_period = le16_to_cpu(beacon_interval);
-	current_ptr += 2;
-	bytes_left_for_current_beacon -= 2;
-
-	/* Capability information is 2 bytes long */
-	memcpy(&capabilities, current_ptr, 2);
-	dev_dbg(adapter->dev, "info: InterpretIE: capabilities=0x%X\n",
-	       capabilities);
-	bss_entry->cap_info_bitmap = le16_to_cpu(capabilities);
-	current_ptr += 2;
-	bytes_left_for_current_beacon -= 2;
-
-	/* Rest of the current buffer are IE's */
-	dev_dbg(adapter->dev, "info: InterpretIE: IELength for this AP = %d\n",
-	       bytes_left_for_current_beacon);
-
-	if (bss_entry->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
-		dev_dbg(adapter->dev, "info: InterpretIE: AP WEP enabled\n");
-		bss_entry->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
-	} else {
-		bss_entry->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
-	}
-
-	if (bss_entry->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
-		bss_entry->bss_mode = NL80211_IFTYPE_ADHOC;
-	else
-		bss_entry->bss_mode = NL80211_IFTYPE_STATION;
-
+	current_ptr = ie_buf;
+	bytes_left = ie_len;
+	bss_entry->beacon_buf = ie_buf;
+	bss_entry->beacon_buf_size = ie_len;
 
 	/* Process variable IE */
-	while (bytes_left_for_current_beacon >= 2) {
+	while (bytes_left >= 2) {
 		element_id = *current_ptr;
 		element_len = *(current_ptr + 1);
 		total_ie_len = element_len + sizeof(struct ieee_types_header);
 
-		if (bytes_left_for_current_beacon < total_ie_len) {
+		if (bytes_left < total_ie_len) {
 			dev_err(adapter->dev, "err: InterpretIE: in processing"
 				" IE, bytes left < IE length\n");
-			bytes_left_for_current_beacon = 0;
-			ret = -1;
-			continue;
+			return -1;
 		}
 		switch (element_id) {
 		case WLAN_EID_SSID:
 			bss_entry->ssid.ssid_len = element_len;
 			memcpy(bss_entry->ssid.ssid, (current_ptr + 2),
 			       element_len);
-			dev_dbg(adapter->dev, "info: InterpretIE: ssid: %-32s\n",
-			       bss_entry->ssid.ssid);
+			dev_dbg(adapter->dev, "info: InterpretIE: ssid: "
+					      "%-32s\n", bss_entry->ssid.ssid);
 			break;
 
 		case WLAN_EID_SUPP_RATES:
@@ -1471,13 +1278,6 @@ mwifiex_interpret_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 					sizeof(struct ieee_types_header) -
 					bss_entry->beacon_buf);
 			break;
-		case WLAN_EID_OVERLAP_BSS_SCAN_PARAM:
-			bss_entry->bcn_obss_scan =
-				(struct ieee_types_obss_scan_param *)
-				current_ptr;
-			bss_entry->overlap_bss_offset = (u16) (current_ptr -
-							bss_entry->beacon_buf);
-			break;
 		default:
 			break;
 		}
@@ -1485,577 +1285,13 @@ mwifiex_interpret_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 		current_ptr += element_len + 2;
 
 		/* Need to account for IE ID and IE Len */
-		bytes_left_for_current_beacon -= (element_len + 2);
+		bytes_left -= (element_len + 2);
 
-	}	/* while (bytes_left_for_current_beacon > 2) */
+	}	/* while (bytes_left > 2) */
 	return ret;
 }
 
 /*
- * This function adjusts the pointers used in beacon buffers to reflect
- * shifts.
- *
- * The memory allocated for beacon buffers is of fixed sizes where all the
- * saved beacons must be stored. New beacons are added in the free portion
- * of this memory, space permitting; while duplicate beacon buffers are
- * placed at the same start location. However, since duplicate beacon
- * buffers may not match the size of the old one, all the following buffers
- * in the memory must be shifted to either make space, or to fill up freed
- * up space.
- *
- * This function is used to update the beacon buffer pointers that are past
- * an existing beacon buffer that is updated with a new one of different
- * size. The pointers are shifted by a fixed amount, either forward or
- * backward.
- *
- * the following pointers in every affected beacon buffers are changed, if
- * present -
- *      - WPA IE pointer
- *      - RSN IE pointer
- *      - WAPI IE pointer
- *      - HT capability IE pointer
- *      - HT information IE pointer
- *      - BSS coexistence 20/40 IE pointer
- *      - Extended capability IE pointer
- *      - Overlapping BSS scan parameter IE pointer
- */
-static void
-mwifiex_adjust_beacon_buffer_ptrs(struct mwifiex_private *priv, u8 advance,
-				  u8 *bcn_store, u32 rem_bcn_size,
-				  u32 num_of_ent)
-{
-	struct mwifiex_adapter *adapter = priv->adapter;
-	u32 adj_idx;
-	for (adj_idx = 0; adj_idx < num_of_ent; adj_idx++) {
-		if (adapter->scan_table[adj_idx].beacon_buf > bcn_store) {
-
-			if (advance)
-				adapter->scan_table[adj_idx].beacon_buf +=
-					rem_bcn_size;
-			else
-				adapter->scan_table[adj_idx].beacon_buf -=
-					rem_bcn_size;
-
-			if (adapter->scan_table[adj_idx].bcn_wpa_ie)
-				adapter->scan_table[adj_idx].bcn_wpa_ie =
-				(struct ieee_types_vendor_specific *)
-				(adapter->scan_table[adj_idx].beacon_buf +
-				 adapter->scan_table[adj_idx].wpa_offset);
-			if (adapter->scan_table[adj_idx].bcn_rsn_ie)
-				adapter->scan_table[adj_idx].bcn_rsn_ie =
-				(struct ieee_types_generic *)
-				(adapter->scan_table[adj_idx].beacon_buf +
-				 adapter->scan_table[adj_idx].rsn_offset);
-			if (adapter->scan_table[adj_idx].bcn_wapi_ie)
-				adapter->scan_table[adj_idx].bcn_wapi_ie =
-				(struct ieee_types_generic *)
-				(adapter->scan_table[adj_idx].beacon_buf +
-				 adapter->scan_table[adj_idx].wapi_offset);
-			if (adapter->scan_table[adj_idx].bcn_ht_cap)
-				adapter->scan_table[adj_idx].bcn_ht_cap =
-				(struct ieee80211_ht_cap *)
-				(adapter->scan_table[adj_idx].beacon_buf +
-				 adapter->scan_table[adj_idx].ht_cap_offset);
-
-			if (adapter->scan_table[adj_idx].bcn_ht_info)
-				adapter->scan_table[adj_idx].bcn_ht_info =
-				(struct ieee80211_ht_info *)
-				(adapter->scan_table[adj_idx].beacon_buf +
-				 adapter->scan_table[adj_idx].ht_info_offset);
-			if (adapter->scan_table[adj_idx].bcn_bss_co_2040)
-				adapter->scan_table[adj_idx].bcn_bss_co_2040 =
-				(u8 *)
-				(adapter->scan_table[adj_idx].beacon_buf +
-			       adapter->scan_table[adj_idx].bss_co_2040_offset);
-			if (adapter->scan_table[adj_idx].bcn_ext_cap)
-				adapter->scan_table[adj_idx].bcn_ext_cap =
-				(u8 *)
-				(adapter->scan_table[adj_idx].beacon_buf +
-				 adapter->scan_table[adj_idx].ext_cap_offset);
-			if (adapter->scan_table[adj_idx].bcn_obss_scan)
-				adapter->scan_table[adj_idx].bcn_obss_scan =
-				(struct ieee_types_obss_scan_param *)
-				(adapter->scan_table[adj_idx].beacon_buf +
-			       adapter->scan_table[adj_idx].overlap_bss_offset);
-		}
-	}
-}
-
-/*
- * This function updates the pointers used in beacon buffer for given bss
- * descriptor to reflect shifts
- *
- * Following pointers are updated
- *      - WPA IE pointer
- *      - RSN IE pointer
- *      - WAPI IE pointer
- *      - HT capability IE pointer
- *      - HT information IE pointer
- *      - BSS coexistence 20/40 IE pointer
- *      - Extended capability IE pointer
- *      - Overlapping BSS scan parameter IE pointer
- */
-static void
-mwifiex_update_beacon_buffer_ptrs(struct mwifiex_bssdescriptor *beacon)
-{
-	if (beacon->bcn_wpa_ie)
-		beacon->bcn_wpa_ie = (struct ieee_types_vendor_specific *)
-			(beacon->beacon_buf + beacon->wpa_offset);
-	if (beacon->bcn_rsn_ie)
-		beacon->bcn_rsn_ie = (struct ieee_types_generic *)
-			(beacon->beacon_buf + beacon->rsn_offset);
-	if (beacon->bcn_wapi_ie)
-		beacon->bcn_wapi_ie = (struct ieee_types_generic *)
-			(beacon->beacon_buf + beacon->wapi_offset);
-	if (beacon->bcn_ht_cap)
-		beacon->bcn_ht_cap = (struct ieee80211_ht_cap *)
-			(beacon->beacon_buf + beacon->ht_cap_offset);
-	if (beacon->bcn_ht_info)
-		beacon->bcn_ht_info = (struct ieee80211_ht_info *)
-			(beacon->beacon_buf + beacon->ht_info_offset);
-	if (beacon->bcn_bss_co_2040)
-		beacon->bcn_bss_co_2040 = (u8 *) (beacon->beacon_buf +
-			beacon->bss_co_2040_offset);
-	if (beacon->bcn_ext_cap)
-		beacon->bcn_ext_cap = (u8 *) (beacon->beacon_buf +
-			beacon->ext_cap_offset);
-	if (beacon->bcn_obss_scan)
-		beacon->bcn_obss_scan = (struct ieee_types_obss_scan_param *)
-			(beacon->beacon_buf + beacon->overlap_bss_offset);
-}
-
-/*
- * This function stores a beacon or probe response for a BSS returned
- * in the scan.
- *
- * This stores a new scan response or an update for a previous scan response.
- * New entries need to verify that they do not exceed the total amount of
- * memory allocated for the table.
- *
- * Replacement entries need to take into consideration the amount of space
- * currently allocated for the beacon/probe response and adjust the entry
- * as needed.
- *
- * A small amount of extra pad (SCAN_BEACON_ENTRY_PAD) is generally reserved
- * for an entry in case it is a beacon since a probe response for the
- * network will by larger per the standard.  This helps to reduce the
- * amount of memory copying to fit a new probe response into an entry
- * already occupied by a network's previously stored beacon.
- */
-static void
-mwifiex_ret_802_11_scan_store_beacon(struct mwifiex_private *priv,
-				     u32 beacon_idx, u32 num_of_ent,
-				     struct mwifiex_bssdescriptor *new_beacon)
-{
-	struct mwifiex_adapter *adapter = priv->adapter;
-	u8 *bcn_store;
-	u32 new_bcn_size;
-	u32 old_bcn_size;
-	u32 bcn_space;
-
-	if (adapter->scan_table[beacon_idx].beacon_buf) {
-
-		new_bcn_size = new_beacon->beacon_buf_size;
-		old_bcn_size = adapter->scan_table[beacon_idx].beacon_buf_size;
-		bcn_space = adapter->scan_table[beacon_idx].beacon_buf_size_max;
-		bcn_store = adapter->scan_table[beacon_idx].beacon_buf;
-
-		/* Set the max to be the same as current entry unless changed
-		   below */
-		new_beacon->beacon_buf_size_max = bcn_space;
-		if (new_bcn_size == old_bcn_size) {
-			/*
-			 * Beacon is the same size as the previous entry.
-			 *   Replace the previous contents with the scan result
-			 */
-			memcpy(bcn_store, new_beacon->beacon_buf,
-			       new_beacon->beacon_buf_size);
-
-		} else if (new_bcn_size <= bcn_space) {
-			/*
-			 * New beacon size will fit in the amount of space
-			 *   we have previously allocated for it
-			 */
-
-			/* Copy the new beacon buffer entry over the old one */
-			memcpy(bcn_store, new_beacon->beacon_buf, new_bcn_size);
-
-			/*
-			 *  If the old beacon size was less than the maximum
-			 *  we had alloted for the entry, and the new entry
-			 *  is even smaller, reset the max size to the old
-			 *  beacon entry and compress the storage space
-			 *  (leaving a new pad space of (old_bcn_size -
-			 *  new_bcn_size).
-			 */
-			if (old_bcn_size < bcn_space
-			    && new_bcn_size <= old_bcn_size) {
-				/*
-				 * Old Beacon size is smaller than the alloted
-				 * storage size. Shrink the alloted storage
-				 * space.
-				 */
-				dev_dbg(adapter->dev, "info: AppControl:"
-					" smaller duplicate beacon "
-				       "(%d), old = %d, new = %d, space = %d,"
-				       "left = %d\n",
-				       beacon_idx, old_bcn_size, new_bcn_size,
-				       bcn_space,
-				       (int)(sizeof(adapter->bcn_buf) -
-					(adapter->bcn_buf_end -
-					 adapter->bcn_buf)));
-
-				/*
-				 *  memmove (since the memory overlaps) the
-				 *  data after the beacon we just stored to the
-				 *  end of the current beacon.  This cleans up
-				 *  any unused space the old larger beacon was
-				 *  using in the buffer
-				 */
-				memmove(bcn_store + old_bcn_size,
-					bcn_store + bcn_space,
-					adapter->bcn_buf_end - (bcn_store +
-								   bcn_space));
-
-				/*
-				 * Decrement the end pointer by the difference
-				 * between the old larger size and the new
-				 * smaller size since we are using less space
-				 * due to the new beacon being smaller
-				 */
-				adapter->bcn_buf_end -=
-					(bcn_space - old_bcn_size);
-
-				/* Set the maximum storage size to the old
-				   beacon size */
-				new_beacon->beacon_buf_size_max = old_bcn_size;
-
-				/* Adjust beacon buffer pointers that are past
-				   the current */
-				mwifiex_adjust_beacon_buffer_ptrs(priv, 0,
-					bcn_store, (bcn_space - old_bcn_size),
-					num_of_ent);
-			}
-		} else if (adapter->bcn_buf_end + (new_bcn_size - bcn_space)
-			   < (adapter->bcn_buf + sizeof(adapter->bcn_buf))) {
-			/*
-			 * Beacon is larger than space previously allocated
-			 * (bcn_space) and there is enough space left in the
-			 * beaconBuffer to store the additional data
-			 */
-			dev_dbg(adapter->dev, "info: AppControl:"
-				" larger duplicate beacon (%d), "
-			       "old = %d, new = %d, space = %d, left = %d\n",
-			       beacon_idx, old_bcn_size, new_bcn_size,
-			       bcn_space,
-			       (int)(sizeof(adapter->bcn_buf) -
-				(adapter->bcn_buf_end -
-				 adapter->bcn_buf)));
-
-			/*
-			 * memmove (since the memory overlaps) the data
-			 *  after the beacon we just stored to the end of
-			 *  the current beacon.  This moves the data for
-			 *  the beacons after this further in memory to
-			 *  make space for the new larger beacon we are
-			 *  about to copy in.
-			 */
-			memmove(bcn_store + new_bcn_size,
-				bcn_store + bcn_space,
-				adapter->bcn_buf_end - (bcn_store + bcn_space));
-
-			/* Copy the new beacon buffer entry over the old one */
-			memcpy(bcn_store, new_beacon->beacon_buf, new_bcn_size);
-
-			/* Move the beacon end pointer by the amount of new
-			   beacon data we are adding */
-			adapter->bcn_buf_end += (new_bcn_size - bcn_space);
-
-			/*
-			 * This entry is bigger than the alloted max space
-			 *  previously reserved.  Increase the max space to
-			 *  be equal to the new beacon size
-			 */
-			new_beacon->beacon_buf_size_max = new_bcn_size;
-
-			/* Adjust beacon buffer pointers that are past the
-			   current */
-			mwifiex_adjust_beacon_buffer_ptrs(priv, 1, bcn_store,
-						(new_bcn_size - bcn_space),
-						num_of_ent);
-		} else {
-			/*
-			 * Beacon is larger than the previously allocated space,
-			 * but there is not enough free space to store the
-			 * additional data.
-			 */
-			dev_err(adapter->dev, "AppControl: larger duplicate "
-				" beacon (%d), old = %d new = %d, space = %d,"
-				" left = %d\n", beacon_idx, old_bcn_size,
-				new_bcn_size, bcn_space,
-				(int)(sizeof(adapter->bcn_buf) -
-				(adapter->bcn_buf_end - adapter->bcn_buf)));
-
-			/* Storage failure, keep old beacon intact */
-			new_beacon->beacon_buf_size = old_bcn_size;
-			if (new_beacon->bcn_wpa_ie)
-				new_beacon->wpa_offset =
-					adapter->scan_table[beacon_idx].
-					wpa_offset;
-			if (new_beacon->bcn_rsn_ie)
-				new_beacon->rsn_offset =
-					adapter->scan_table[beacon_idx].
-					rsn_offset;
-			if (new_beacon->bcn_wapi_ie)
-				new_beacon->wapi_offset =
-					adapter->scan_table[beacon_idx].
-					wapi_offset;
-			if (new_beacon->bcn_ht_cap)
-				new_beacon->ht_cap_offset =
-					adapter->scan_table[beacon_idx].
-					ht_cap_offset;
-			if (new_beacon->bcn_ht_info)
-				new_beacon->ht_info_offset =
-					adapter->scan_table[beacon_idx].
-					ht_info_offset;
-			if (new_beacon->bcn_bss_co_2040)
-				new_beacon->bss_co_2040_offset =
-					adapter->scan_table[beacon_idx].
-					bss_co_2040_offset;
-			if (new_beacon->bcn_ext_cap)
-				new_beacon->ext_cap_offset =
-					adapter->scan_table[beacon_idx].
-					ext_cap_offset;
-			if (new_beacon->bcn_obss_scan)
-				new_beacon->overlap_bss_offset =
-					adapter->scan_table[beacon_idx].
-					overlap_bss_offset;
-		}
-		/* Point the new entry to its permanent storage space */
-		new_beacon->beacon_buf = bcn_store;
-		mwifiex_update_beacon_buffer_ptrs(new_beacon);
-	} else {
-		/*
-		 * No existing beacon data exists for this entry, check to see
-		 *   if we can fit it in the remaining space
-		 */
-		if (adapter->bcn_buf_end + new_beacon->beacon_buf_size +
-		    SCAN_BEACON_ENTRY_PAD < (adapter->bcn_buf +
-					     sizeof(adapter->bcn_buf))) {
-
-			/*
-			 * Copy the beacon buffer data from the local entry to
-			 * the adapter dev struct buffer space used to store
-			 * the raw beacon data for each entry in the scan table
-			 */
-			memcpy(adapter->bcn_buf_end, new_beacon->beacon_buf,
-			       new_beacon->beacon_buf_size);
-
-			/* Update the beacon ptr to point to the table save
-			   area */
-			new_beacon->beacon_buf = adapter->bcn_buf_end;
-			new_beacon->beacon_buf_size_max =
-				(new_beacon->beacon_buf_size +
-				 SCAN_BEACON_ENTRY_PAD);
-
-			mwifiex_update_beacon_buffer_ptrs(new_beacon);
-
-			/* Increment the end pointer by the size reserved */
-			adapter->bcn_buf_end += new_beacon->beacon_buf_size_max;
-
-			dev_dbg(adapter->dev, "info: AppControl: beacon[%02d]"
-				" sz=%03d, used = %04d, left = %04d\n",
-			       beacon_idx,
-			       new_beacon->beacon_buf_size,
-			       (int)(adapter->bcn_buf_end - adapter->bcn_buf),
-			       (int)(sizeof(adapter->bcn_buf) -
-				(adapter->bcn_buf_end -
-				 adapter->bcn_buf)));
-		} else {
-			/* No space for new beacon */
-			dev_dbg(adapter->dev, "info: AppControl: no space for"
-				" beacon (%d): %pM sz=%03d, left=%03d\n",
-			       beacon_idx, new_beacon->mac_address,
-			       new_beacon->beacon_buf_size,
-			       (int)(sizeof(adapter->bcn_buf) -
-				(adapter->bcn_buf_end -
-				 adapter->bcn_buf)));
-
-			/* Storage failure; clear storage records for this
-			   bcn */
-			new_beacon->beacon_buf = NULL;
-			new_beacon->beacon_buf_size = 0;
-			new_beacon->beacon_buf_size_max = 0;
-			new_beacon->bcn_wpa_ie = NULL;
-			new_beacon->wpa_offset = 0;
-			new_beacon->bcn_rsn_ie = NULL;
-			new_beacon->rsn_offset = 0;
-			new_beacon->bcn_wapi_ie = NULL;
-			new_beacon->wapi_offset = 0;
-			new_beacon->bcn_ht_cap = NULL;
-			new_beacon->ht_cap_offset = 0;
-			new_beacon->bcn_ht_info = NULL;
-			new_beacon->ht_info_offset = 0;
-			new_beacon->bcn_bss_co_2040 = NULL;
-			new_beacon->bss_co_2040_offset = 0;
-			new_beacon->bcn_ext_cap = NULL;
-			new_beacon->ext_cap_offset = 0;
-			new_beacon->bcn_obss_scan = NULL;
-			new_beacon->overlap_bss_offset = 0;
-		}
-	}
-}
-
-/*
- * This function restores a beacon buffer of the current BSS descriptor.
- */
-static void mwifiex_restore_curr_bcn(struct mwifiex_private *priv)
-{
-	struct mwifiex_adapter *adapter = priv->adapter;
-	struct mwifiex_bssdescriptor *curr_bss =
-		&priv->curr_bss_params.bss_descriptor;
-	unsigned long flags;
-
-	if (priv->curr_bcn_buf &&
-	    ((adapter->bcn_buf_end + priv->curr_bcn_size) <
-	     (adapter->bcn_buf + sizeof(adapter->bcn_buf)))) {
-		spin_lock_irqsave(&priv->curr_bcn_buf_lock, flags);
-
-		/* restore the current beacon buffer */
-		memcpy(adapter->bcn_buf_end, priv->curr_bcn_buf,
-		       priv->curr_bcn_size);
-		curr_bss->beacon_buf = adapter->bcn_buf_end;
-		curr_bss->beacon_buf_size = priv->curr_bcn_size;
-		adapter->bcn_buf_end += priv->curr_bcn_size;
-
-		/* adjust the pointers in the current BSS descriptor */
-		if (curr_bss->bcn_wpa_ie)
-			curr_bss->bcn_wpa_ie =
-				(struct ieee_types_vendor_specific *)
-				(curr_bss->beacon_buf +
-				 curr_bss->wpa_offset);
-
-		if (curr_bss->bcn_rsn_ie)
-			curr_bss->bcn_rsn_ie = (struct ieee_types_generic *)
-				(curr_bss->beacon_buf +
-				 curr_bss->rsn_offset);
-
-		if (curr_bss->bcn_ht_cap)
-			curr_bss->bcn_ht_cap = (struct ieee80211_ht_cap *)
-				(curr_bss->beacon_buf +
-				 curr_bss->ht_cap_offset);
-
-		if (curr_bss->bcn_ht_info)
-			curr_bss->bcn_ht_info = (struct ieee80211_ht_info *)
-				(curr_bss->beacon_buf +
-				 curr_bss->ht_info_offset);
-
-		if (curr_bss->bcn_bss_co_2040)
-			curr_bss->bcn_bss_co_2040 =
-				(u8 *) (curr_bss->beacon_buf +
-				 curr_bss->bss_co_2040_offset);
-
-		if (curr_bss->bcn_ext_cap)
-			curr_bss->bcn_ext_cap = (u8 *) (curr_bss->beacon_buf +
-				 curr_bss->ext_cap_offset);
-
-		if (curr_bss->bcn_obss_scan)
-			curr_bss->bcn_obss_scan =
-				(struct ieee_types_obss_scan_param *)
-				(curr_bss->beacon_buf +
-				 curr_bss->overlap_bss_offset);
-
-		spin_unlock_irqrestore(&priv->curr_bcn_buf_lock, flags);
-
-		dev_dbg(adapter->dev, "info: current beacon restored %d\n",
-		       priv->curr_bcn_size);
-	} else {
-		dev_warn(adapter->dev,
-			"curr_bcn_buf not saved or bcn_buf has no space\n");
-	}
-}
-
-/*
- * This function post processes the scan table after a new scan command has
- * completed.
- *
- * It inspects each entry of the scan table and tries to find an entry that
- * matches with our current associated/joined network from the scan. If
- * one is found, the stored copy of the BSS descriptor of our current network
- * is updated.
- *
- * It also debug dumps the current scan table contents after processing is over.
- */
-static void
-mwifiex_process_scan_results(struct mwifiex_private *priv)
-{
-	struct mwifiex_adapter *adapter = priv->adapter;
-	s32 j;
-	u32 i;
-	unsigned long flags;
-
-	if (priv->media_connected) {
-
-		j = mwifiex_find_ssid_in_list(priv, &priv->curr_bss_params.
-					      bss_descriptor.ssid,
-					      priv->curr_bss_params.
-					      bss_descriptor.mac_address,
-					      priv->bss_mode);
-
-		if (j >= 0) {
-			spin_lock_irqsave(&priv->curr_bcn_buf_lock, flags);
-			priv->curr_bss_params.bss_descriptor.bcn_wpa_ie = NULL;
-			priv->curr_bss_params.bss_descriptor.wpa_offset = 0;
-			priv->curr_bss_params.bss_descriptor.bcn_rsn_ie = NULL;
-			priv->curr_bss_params.bss_descriptor.rsn_offset = 0;
-			priv->curr_bss_params.bss_descriptor.bcn_wapi_ie = NULL;
-			priv->curr_bss_params.bss_descriptor.wapi_offset = 0;
-			priv->curr_bss_params.bss_descriptor.bcn_ht_cap = NULL;
-			priv->curr_bss_params.bss_descriptor.ht_cap_offset =
-				0;
-			priv->curr_bss_params.bss_descriptor.bcn_ht_info = NULL;
-			priv->curr_bss_params.bss_descriptor.ht_info_offset =
-				0;
-			priv->curr_bss_params.bss_descriptor.bcn_bss_co_2040 =
-				NULL;
-			priv->curr_bss_params.bss_descriptor.
-				bss_co_2040_offset = 0;
-			priv->curr_bss_params.bss_descriptor.bcn_ext_cap = NULL;
-			priv->curr_bss_params.bss_descriptor.ext_cap_offset = 0;
-			priv->curr_bss_params.bss_descriptor.
-				bcn_obss_scan = NULL;
-			priv->curr_bss_params.bss_descriptor.
-				overlap_bss_offset = 0;
-			priv->curr_bss_params.bss_descriptor.beacon_buf = NULL;
-			priv->curr_bss_params.bss_descriptor.beacon_buf_size =
-				0;
-			priv->curr_bss_params.bss_descriptor.
-				beacon_buf_size_max = 0;
-
-			dev_dbg(adapter->dev, "info: Found current ssid/bssid"
-				" in list @ index #%d\n", j);
-			/* Make a copy of current BSSID descriptor */
-			memcpy(&priv->curr_bss_params.bss_descriptor,
-			       &adapter->scan_table[j],
-			       sizeof(priv->curr_bss_params.bss_descriptor));
-
-			mwifiex_save_curr_bcn(priv);
-			spin_unlock_irqrestore(&priv->curr_bcn_buf_lock, flags);
-
-		} else {
-			mwifiex_restore_curr_bcn(priv);
-		}
-	}
-
-	for (i = 0; i < adapter->num_in_scan_table; i++)
-		dev_dbg(adapter->dev, "info: scan:(%02d) %pM "
-		       "RSSI[%03d], SSID[%s]\n",
-		       i, adapter->scan_table[i].mac_address,
-		       (s32) adapter->scan_table[i].rssi,
-		       adapter->scan_table[i].ssid.ssid);
-}
-
-/*
  * This function converts radio type scan parameter to a band configuration
  * to be used in join command.
  */
@@ -2072,175 +1308,6 @@ mwifiex_radio_type_to_band(u8 radio_type)
 }
 
 /*
- * This function deletes a specific indexed entry from the scan table.
- *
- * This also compacts the remaining entries and adjusts any buffering
- * of beacon/probe response data if needed.
- */
-static void
-mwifiex_scan_delete_table_entry(struct mwifiex_private *priv, s32 table_idx)
-{
-	struct mwifiex_adapter *adapter = priv->adapter;
-	u32 del_idx;
-	u32 beacon_buf_adj;
-	u8 *beacon_buf;
-
-	/*
-	 * Shift the saved beacon buffer data for the scan table back over the
-	 *   entry being removed.  Update the end of buffer pointer.  Save the
-	 *   deleted buffer allocation size for pointer adjustments for entries
-	 *   compacted after the deleted index.
-	 */
-	beacon_buf_adj = adapter->scan_table[table_idx].beacon_buf_size_max;
-
-	dev_dbg(adapter->dev, "info: Scan: Delete Entry %d, beacon buffer "
-		"removal = %d bytes\n", table_idx, beacon_buf_adj);
-
-	/* Check if the table entry had storage allocated for its beacon */
-	if (beacon_buf_adj) {
-		beacon_buf = adapter->scan_table[table_idx].beacon_buf;
-
-		/*
-		 * Remove the entry's buffer space, decrement the table end
-		 * pointer by the amount we are removing
-		 */
-		adapter->bcn_buf_end -= beacon_buf_adj;
-
-		dev_dbg(adapter->dev, "info: scan: delete entry %d,"
-			" compact data: %p <- %p (sz = %d)\n",
-		       table_idx, beacon_buf,
-		       beacon_buf + beacon_buf_adj,
-		       (int)(adapter->bcn_buf_end - beacon_buf));
-
-		/*
-		 * Compact data storage.  Copy all data after the deleted
-		 * entry's end address (beacon_buf + beacon_buf_adj) back
-		 * to the original start address (beacon_buf).
-		 *
-		 * Scan table entries affected by the move will have their
-		 * entry pointer adjusted below.
-		 *
-		 * Use memmove since the dest/src memory regions overlap.
-		 */
-		memmove(beacon_buf, beacon_buf + beacon_buf_adj,
-			adapter->bcn_buf_end - beacon_buf);
-	}
-
-	dev_dbg(adapter->dev,
-		"info: Scan: Delete Entry %d, num_in_scan_table = %d\n",
-	       table_idx, adapter->num_in_scan_table);
-
-	/* Shift all of the entries after the table_idx back by one, compacting
-	   the table and removing the requested entry */
-	for (del_idx = table_idx; (del_idx + 1) < adapter->num_in_scan_table;
-	     del_idx++) {
-		/* Copy the next entry over this one */
-		memcpy(adapter->scan_table + del_idx,
-		       adapter->scan_table + del_idx + 1,
-		       sizeof(struct mwifiex_bssdescriptor));
-
-		/*
-		 * Adjust this entry's pointer to its beacon buffer based on
-		 * the removed/compacted entry from the deleted index.  Don't
-		 * decrement if the buffer pointer is NULL (no data stored for
-		 * this entry).
-		 */
-		if (adapter->scan_table[del_idx].beacon_buf) {
-			adapter->scan_table[del_idx].beacon_buf -=
-				beacon_buf_adj;
-			if (adapter->scan_table[del_idx].bcn_wpa_ie)
-				adapter->scan_table[del_idx].bcn_wpa_ie =
-					(struct ieee_types_vendor_specific *)
-					(adapter->scan_table[del_idx].
-					 beacon_buf +
-					 adapter->scan_table[del_idx].
-					 wpa_offset);
-			if (adapter->scan_table[del_idx].bcn_rsn_ie)
-				adapter->scan_table[del_idx].bcn_rsn_ie =
-					(struct ieee_types_generic *)
-					(adapter->scan_table[del_idx].
-					 beacon_buf +
-					 adapter->scan_table[del_idx].
-					 rsn_offset);
-			if (adapter->scan_table[del_idx].bcn_wapi_ie)
-				adapter->scan_table[del_idx].bcn_wapi_ie =
-					(struct ieee_types_generic *)
-					(adapter->scan_table[del_idx].beacon_buf
-					 + adapter->scan_table[del_idx].
-					 wapi_offset);
-			if (adapter->scan_table[del_idx].bcn_ht_cap)
-				adapter->scan_table[del_idx].bcn_ht_cap =
-					(struct ieee80211_ht_cap *)
-					(adapter->scan_table[del_idx].beacon_buf
-					 + adapter->scan_table[del_idx].
-					  ht_cap_offset);
-
-			if (adapter->scan_table[del_idx].bcn_ht_info)
-				adapter->scan_table[del_idx].bcn_ht_info =
-					(struct ieee80211_ht_info *)
-					(adapter->scan_table[del_idx].beacon_buf
-					 + adapter->scan_table[del_idx].
-					  ht_info_offset);
-			if (adapter->scan_table[del_idx].bcn_bss_co_2040)
-				adapter->scan_table[del_idx].bcn_bss_co_2040 =
-					(u8 *)
-					(adapter->scan_table[del_idx].beacon_buf
-					 + adapter->scan_table[del_idx].
-					   bss_co_2040_offset);
-			if (adapter->scan_table[del_idx].bcn_ext_cap)
-				adapter->scan_table[del_idx].bcn_ext_cap =
-					(u8 *)
-					(adapter->scan_table[del_idx].beacon_buf
-					 + adapter->scan_table[del_idx].
-					     ext_cap_offset);
-			if (adapter->scan_table[del_idx].bcn_obss_scan)
-				adapter->scan_table[del_idx].
-					bcn_obss_scan =
-					(struct ieee_types_obss_scan_param *)
-					(adapter->scan_table[del_idx].beacon_buf
-					 + adapter->scan_table[del_idx].
-					     overlap_bss_offset);
-		}
-	}
-
-	/* The last entry is invalid now that it has been deleted or moved
-	   back */
-	memset(adapter->scan_table + adapter->num_in_scan_table - 1,
-	       0x00, sizeof(struct mwifiex_bssdescriptor));
-
-	adapter->num_in_scan_table--;
-}
-
-/*
- * This function deletes all occurrences of a given SSID from the scan table.
- *
- * This iterates through the scan table and deletes all entries that match
- * the given SSID. It also compacts the remaining scan table entries.
- */
-static int
-mwifiex_scan_delete_ssid_table_entry(struct mwifiex_private *priv,
-				     struct mwifiex_802_11_ssid *del_ssid)
-{
-	s32 table_idx = -1;
-
-	dev_dbg(priv->adapter->dev, "info: scan: delete ssid entry: %-32s\n",
-			del_ssid->ssid);
-
-	/* If the requested SSID is found in the table, delete it.  Then keep
-	   searching the table for multiple entires for the SSID until no
-	   more are found */
-	while ((table_idx = mwifiex_find_ssid_in_list(priv, del_ssid, NULL,
-					NL80211_IFTYPE_UNSPECIFIED)) >= 0) {
-		dev_dbg(priv->adapter->dev,
-			"info: Scan: Delete SSID Entry: Found Idx = %d\n",
-		       table_idx);
-		mwifiex_scan_delete_table_entry(priv, table_idx);
-	}
-
-	return table_idx == -1 ? -1 : 0;
-}
-
-/*
  * This is an internal function used to start a scan based on an input
  * configuration.
  *
@@ -2258,7 +1325,6 @@ int mwifiex_scan_networks(struct mwifiex_private *priv,
 	struct mwifiex_ie_types_chan_list_param_set *chan_list_out;
 	u32 buf_size;
 	struct mwifiex_chan_scan_param_set *scan_chan_list;
-	u8 keep_previous_scan;
 	u8 filtered_scan;
 	u8 scan_current_chan_only;
 	u8 max_chan_per_scan;
@@ -2295,24 +1361,11 @@ int mwifiex_scan_networks(struct mwifiex_private *priv,
 		return -ENOMEM;
 	}
 
-	keep_previous_scan = false;
-
 	mwifiex_scan_setup_scan_config(priv, user_scan_in,
 				       &scan_cfg_out->config, &chan_list_out,
 				       scan_chan_list, &max_chan_per_scan,
 				       &filtered_scan, &scan_current_chan_only);
 
-	if (user_scan_in)
-		keep_previous_scan = user_scan_in->keep_previous_scan;
-
-
-	if (!keep_previous_scan) {
-		memset(adapter->scan_table, 0x00,
-		       sizeof(struct mwifiex_bssdescriptor) * IW_MAX_AP);
-		adapter->num_in_scan_table = 0;
-		adapter->bcn_buf_end = adapter->bcn_buf;
-	}
-
 	ret = mwifiex_scan_channel_list(priv, max_chan_per_scan, filtered_scan,
 					&scan_cfg_out->config, chan_list_out,
 					scan_chan_list);
@@ -2379,6 +1432,107 @@ int mwifiex_cmd_802_11_scan(struct host_cmd_ds_command *cmd,
 }
 
 /*
+ * This function checks compatibility of requested network with current
+ * driver settings.
+ */
+int mwifiex_check_network_compatibility(struct mwifiex_private *priv,
+					struct mwifiex_bssdescriptor *bss_desc)
+{
+	int ret = -1;
+
+	if (!bss_desc)
+		return -1;
+
+	if ((mwifiex_get_cfp_by_band_and_channel_from_cfg80211(priv,
+			(u8) bss_desc->bss_band, (u16) bss_desc->channel))) {
+		switch (priv->bss_mode) {
+		case NL80211_IFTYPE_STATION:
+		case NL80211_IFTYPE_ADHOC:
+			ret = mwifiex_is_network_compatible(priv, bss_desc,
+							    priv->bss_mode);
+			if (ret)
+				dev_err(priv->adapter->dev, "cannot find ssid "
+					"%s\n", bss_desc->ssid.ssid);
+				break;
+		default:
+				ret = 0;
+		}
+	}
+
+	return ret;
+}
+
+static int
+mwifiex_update_curr_bss_params(struct mwifiex_private *priv,
+			u8 *bssid, s32 rssi, const u8 *ie_buf,
+			size_t ie_len, u16 beacon_period, u16 cap_info_bitmap)
+{
+	struct mwifiex_bssdescriptor *bss_desc = NULL;
+	int ret;
+	unsigned long flags;
+	u8 *beacon_ie;
+
+	/* Allocate and fill new bss descriptor */
+	bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
+			GFP_KERNEL);
+	if (!bss_desc) {
+		dev_err(priv->adapter->dev, " failed to alloc bss_desc\n");
+		return -ENOMEM;
+	}
+	beacon_ie = kzalloc(ie_len, GFP_KERNEL);
+	if (!bss_desc) {
+		dev_err(priv->adapter->dev, " failed to alloc bss_desc\n");
+		return -ENOMEM;
+	}
+	memcpy(beacon_ie, ie_buf, ie_len);
+
+	ret = mwifiex_fill_new_bss_desc(priv, bssid, rssi, beacon_ie,
+					ie_len, beacon_period,
+					cap_info_bitmap, bss_desc);
+	if (ret)
+		goto done;
+
+	ret = mwifiex_check_network_compatibility(priv, bss_desc);
+	if (ret)
+		goto done;
+
+	/* Update current bss descriptor parameters */
+	spin_lock_irqsave(&priv->curr_bcn_buf_lock, flags);
+	priv->curr_bss_params.bss_descriptor.bcn_wpa_ie = NULL;
+	priv->curr_bss_params.bss_descriptor.wpa_offset = 0;
+	priv->curr_bss_params.bss_descriptor.bcn_rsn_ie = NULL;
+	priv->curr_bss_params.bss_descriptor.rsn_offset = 0;
+	priv->curr_bss_params.bss_descriptor.bcn_wapi_ie = NULL;
+	priv->curr_bss_params.bss_descriptor.wapi_offset = 0;
+	priv->curr_bss_params.bss_descriptor.bcn_ht_cap = NULL;
+	priv->curr_bss_params.bss_descriptor.ht_cap_offset =
+		0;
+	priv->curr_bss_params.bss_descriptor.bcn_ht_info = NULL;
+	priv->curr_bss_params.bss_descriptor.ht_info_offset =
+		0;
+	priv->curr_bss_params.bss_descriptor.bcn_bss_co_2040 =
+		NULL;
+	priv->curr_bss_params.bss_descriptor.
+		bss_co_2040_offset = 0;
+	priv->curr_bss_params.bss_descriptor.bcn_ext_cap = NULL;
+	priv->curr_bss_params.bss_descriptor.ext_cap_offset = 0;
+	priv->curr_bss_params.bss_descriptor.beacon_buf = NULL;
+	priv->curr_bss_params.bss_descriptor.beacon_buf_size =
+		0;
+
+	/* Make a copy of current BSSID descriptor */
+	memcpy(&priv->curr_bss_params.bss_descriptor, bss_desc,
+		sizeof(priv->curr_bss_params.bss_descriptor));
+	mwifiex_save_curr_bcn(priv);
+	spin_unlock_irqrestore(&priv->curr_bcn_buf_lock, flags);
+
+done:
+	kfree(bss_desc);
+	kfree(beacon_ie);
+	return 0;
+}
+
+/*
  * This function handles the command response of scan.
  *
  * The response buffer for the scan command has the following
@@ -2404,21 +1558,16 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 	struct mwifiex_adapter *adapter = priv->adapter;
 	struct cmd_ctrl_node *cmd_node;
 	struct host_cmd_ds_802_11_scan_rsp *scan_rsp;
-	struct mwifiex_bssdescriptor *bss_new_entry = NULL;
 	struct mwifiex_ie_types_data *tlv_data;
 	struct mwifiex_ie_types_tsf_timestamp *tsf_tlv;
 	u8 *bss_info;
 	u32 scan_resp_size;
 	u32 bytes_left;
-	u32 num_in_table;
-	u32 bss_idx;
 	u32 idx;
 	u32 tlv_buf_size;
-	long long tsf_val;
 	struct mwifiex_chan_freq_power *cfp;
 	struct mwifiex_ie_types_chan_band_list_param_set *chan_band_tlv;
 	struct chan_band_param_set *chan_band;
-	u8 band;
 	u8 is_bgscan_resp;
 	unsigned long flags;
 
@@ -2430,7 +1579,7 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 		scan_rsp = &resp->params.scan_resp;
 
 
-	if (scan_rsp->number_of_sets > IW_MAX_AP) {
+	if (scan_rsp->number_of_sets > MWIFIEX_MAX_AP) {
 		dev_err(adapter->dev, "SCAN_RESP: too many AP returned (%d)\n",
 		       scan_rsp->number_of_sets);
 		ret = -1;
@@ -2447,7 +1596,6 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 		"info: SCAN_RESP: returned %d APs before parsing\n",
 	       scan_rsp->number_of_sets);
 
-	num_in_table = adapter->num_in_scan_table;
 	bss_info = scan_rsp->bss_desc_and_tlv_buffer;
 
 	/*
@@ -2479,125 +1627,147 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 					     (struct mwifiex_ie_types_data **)
 					     &chan_band_tlv);
 
-	/*
-	 *  Process each scan response returned (scan_rsp->number_of_sets).
-	 *  Save the information in the bss_new_entry and then insert into the
-	 *  driver scan table either as an update to an existing entry
-	 *  or as an addition at the end of the table
-	 */
-	bss_new_entry = kzalloc(sizeof(struct mwifiex_bssdescriptor),
-				GFP_KERNEL);
-	if (!bss_new_entry) {
-		dev_err(adapter->dev, " failed to alloc bss_new_entry\n");
-		return -ENOMEM;
-	}
-
 	for (idx = 0; idx < scan_rsp->number_of_sets && bytes_left; idx++) {
-		/* Zero out the bss_new_entry we are about to store info in */
-		memset(bss_new_entry, 0x00,
-		       sizeof(struct mwifiex_bssdescriptor));
-
-		if (mwifiex_interpret_bss_desc_with_ie(adapter, bss_new_entry,
-							&bss_info,
-							&bytes_left)) {
-			/* Error parsing/interpreting scan response, skipped */
-			dev_err(adapter->dev, "SCAN_RESP: "
-			       "mwifiex_interpret_bss_desc_with_ie "
-			       "returned ERROR\n");
-			continue;
+		u8 bssid[ETH_ALEN];
+		s32 rssi;
+		const u8 *ie_buf;
+		size_t ie_len;
+		int channel = -1;
+		u64 network_tsf = 0;
+		u16 beacon_size = 0;
+		u32 curr_bcn_bytes;
+		u32 freq;
+		u16 beacon_period;
+		u16 cap_info_bitmap;
+		u8 *current_ptr;
+		struct mwifiex_bcn_param *bcn_param;
+
+		if (bytes_left >= sizeof(beacon_size)) {
+			/* Extract & convert beacon size from command buffer */
+			memcpy(&beacon_size, bss_info, sizeof(beacon_size));
+			bytes_left -= sizeof(beacon_size);
+			bss_info += sizeof(beacon_size);
 		}
 
-		/* Process the data fields and IEs returned for this BSS */
-		dev_dbg(adapter->dev, "info: SCAN_RESP: BSSID = %pM\n",
-		       bss_new_entry->mac_address);
+		if (!beacon_size || beacon_size > bytes_left) {
+			bss_info += bytes_left;
+			bytes_left = 0;
+			return -1;
+		}
 
-		/* Search the scan table for the same bssid */
-		for (bss_idx = 0; bss_idx < num_in_table; bss_idx++) {
-			if (memcmp(bss_new_entry->mac_address,
-				adapter->scan_table[bss_idx].mac_address,
-				sizeof(bss_new_entry->mac_address))) {
-				continue;
+		/* Initialize the current working beacon pointer for this BSS
+		 * iteration */
+		current_ptr = bss_info;
+
+		/* Advance the return beacon pointer past the current beacon */
+		bss_info += beacon_size;
+		bytes_left -= beacon_size;
+
+		curr_bcn_bytes = beacon_size;
+
+		/*
+		 * First 5 fields are bssid, RSSI, time stamp, beacon interval,
+		 *   and capability information
+		 */
+		if (curr_bcn_bytes < sizeof(struct mwifiex_bcn_param)) {
+			dev_err(adapter->dev, "InterpretIE: not enough bytes left\n");
+			continue;
+		}
+		bcn_param = (struct mwifiex_bcn_param *)current_ptr;
+		current_ptr += sizeof(*bcn_param);
+		curr_bcn_bytes -= sizeof(*bcn_param);
+
+		memcpy(bssid, bcn_param->bssid, ETH_ALEN);
+
+		rssi = (s32) (bcn_param->rssi);
+		dev_dbg(adapter->dev, "info: InterpretIE: RSSI=%02X\n",
+					rssi);
+
+		beacon_period = le16_to_cpu(bcn_param->beacon_period);
+
+		cap_info_bitmap = le16_to_cpu(bcn_param->cap_info_bitmap);
+		dev_dbg(adapter->dev, "info: InterpretIE: capabilities=0x%X\n",
+				cap_info_bitmap);
+
+		/* Rest of the current buffer are IE's */
+		ie_buf = current_ptr;
+		ie_len = curr_bcn_bytes;
+		dev_dbg(adapter->dev, "info: InterpretIE: IELength for this AP"
+				      " = %d\n", curr_bcn_bytes);
+
+		while (curr_bcn_bytes >= sizeof(struct ieee_types_header)) {
+			u8 element_id, element_len;
+
+			element_id = *current_ptr;
+			element_len = *(current_ptr + 1);
+			if (curr_bcn_bytes < element_len +
+					sizeof(struct ieee_types_header)) {
+				dev_err(priv->adapter->dev, "%s: in processing"
+					" IE, bytes left < IE length\n",
+					__func__);
+				goto done;
 			}
-			/*
-			 * If the SSID matches as well, it is a
-			 * duplicate of this entry.  Keep the bss_idx
-			 * set to this entry so we replace the old
-			 * contents in the table
-			 */
-			if ((bss_new_entry->ssid.ssid_len
-				== adapter->scan_table[bss_idx]. ssid.ssid_len)
-					&& (!memcmp(bss_new_entry->ssid.ssid,
-					adapter->scan_table[bss_idx].ssid.ssid,
-					bss_new_entry->ssid.ssid_len))) {
-				dev_dbg(adapter->dev, "info: SCAN_RESP:"
-					" duplicate of index: %d\n", bss_idx);
+			if (element_id == WLAN_EID_DS_PARAMS) {
+				channel = *(u8 *) (current_ptr +
+					sizeof(struct ieee_types_header));
 				break;
 			}
-		}
-		/*
-		 * If the bss_idx is equal to the number of entries in
-		 * the table, the new entry was not a duplicate; append
-		 * it to the scan table
-		 */
-		if (bss_idx == num_in_table) {
-			/* Range check the bss_idx, keep it limited to
-			   the last entry */
-			if (bss_idx == IW_MAX_AP)
-				bss_idx--;
-			else
-				num_in_table++;
+
+			current_ptr += element_len +
+					sizeof(struct ieee_types_header);
+			curr_bcn_bytes -= element_len +
+					sizeof(struct ieee_types_header);
 		}
 
 		/*
-		 * Save the beacon/probe response returned for later application
-		 * retrieval.  Duplicate beacon/probe responses are updated if
-		 * possible
-		 */
-		mwifiex_ret_802_11_scan_store_beacon(priv, bss_idx,
-						num_in_table, bss_new_entry);
-		/*
 		 * If the TSF TLV was appended to the scan results, save this
 		 * entry's TSF value in the networkTSF field.The networkTSF is
 		 * the firmware's TSF value at the time the beacon or probe
 		 * response was received.
 		 */
-		if (tsf_tlv) {
-			memcpy(&tsf_val, &tsf_tlv->tsf_data[idx * TSF_DATA_SIZE]
-					, sizeof(tsf_val));
-			memcpy(&bss_new_entry->network_tsf, &tsf_val,
-					sizeof(bss_new_entry->network_tsf));
-		}
-		band = BAND_G;
-		if (chan_band_tlv) {
-			chan_band = &chan_band_tlv->chan_band_param[idx];
-			band = mwifiex_radio_type_to_band(chan_band->radio_type
-					& (BIT(0) | BIT(1)));
-		}
-
-		/* Save the band designation for this entry for use in join */
-		bss_new_entry->bss_band = band;
-		cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211(priv,
-					(u8) bss_new_entry->bss_band,
-					(u16)bss_new_entry->channel);
+		if (tsf_tlv)
+			memcpy(&network_tsf,
+					&tsf_tlv->tsf_data[idx * TSF_DATA_SIZE],
+					sizeof(network_tsf));
+
+		if (channel != -1) {
+			struct ieee80211_channel *chan;
+			u8 band;
+
+			band = BAND_G;
+			if (chan_band_tlv) {
+				chan_band =
+					&chan_band_tlv->chan_band_param[idx];
+				band = mwifiex_radio_type_to_band(
+						chan_band->radio_type
+						& (BIT(0) | BIT(1)));
+			}
 
-		if (cfp)
-			bss_new_entry->freq = cfp->freq;
-		else
-			bss_new_entry->freq = 0;
+			cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211(
+						priv, (u8)band, (u16)channel);
 
-		/* Copy the locally created bss_new_entry to the scan table */
-		memcpy(&adapter->scan_table[bss_idx], bss_new_entry,
-		       sizeof(adapter->scan_table[bss_idx]));
+			freq = cfp ? cfp->freq : 0;
 
-	}
+			chan = ieee80211_get_channel(priv->wdev->wiphy, freq);
 
-	dev_dbg(adapter->dev,
-		"info: SCAN_RESP: Scanned %2d APs, %d valid, %d total\n",
-	       scan_rsp->number_of_sets,
-	       num_in_table - adapter->num_in_scan_table, num_in_table);
+			if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
+				cfg80211_inform_bss(priv->wdev->wiphy, chan,
+					bssid, network_tsf, cap_info_bitmap,
+					beacon_period, ie_buf, ie_len, rssi,
+					GFP_KERNEL);
 
-	/* Update the total number of BSSIDs in the scan table */
-	adapter->num_in_scan_table = num_in_table;
+				if (priv->media_connected && !memcmp(bssid,
+					priv->curr_bss_params.bss_descriptor
+						     .mac_address, ETH_ALEN))
+					mwifiex_update_curr_bss_params(priv,
+							bssid, rssi, ie_buf,
+							ie_len, beacon_period,
+							cap_info_bitmap);
+			}
+		} else {
+			dev_dbg(adapter->dev, "missing BSS channel IE\n");
+		}
+	}
 
 	spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
 	if (list_empty(&adapter->scan_pending_q)) {
@@ -2605,12 +1775,6 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 		spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
 		adapter->scan_processing = false;
 		spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
-		/*
-		 * Process the resulting scan table:
-		 *   - Remove any bad ssids
-		 *   - Update our current BSS information from scan data
-		 */
-		mwifiex_process_scan_results(priv);
 
 		/* Need to indicate IOCTL complete */
 		if (adapter->curr_cmd->wait_q_enabled) {
@@ -2636,7 +1800,6 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 	}
 
 done:
-	kfree((u8 *) bss_new_entry);
 	return ret;
 }
 
@@ -2663,141 +1826,6 @@ int mwifiex_cmd_802_11_bg_scan_query(struct host_cmd_ds_command *cmd)
 }
 
 /*
- * This function finds a SSID in the scan table.
- *
- * A BSSID may optionally be provided to qualify the SSID.
- * For non-Auto mode, further check is made to make sure the
- * BSS found in the scan table is compatible with the current
- * settings of the driver.
- */
-s32
-mwifiex_find_ssid_in_list(struct mwifiex_private *priv,
-			  struct mwifiex_802_11_ssid *ssid, u8 *bssid,
-			  u32 mode)
-{
-	struct mwifiex_adapter *adapter = priv->adapter;
-	s32 net = -1, j;
-	u8 best_rssi = 0;
-	u32 i;
-
-	dev_dbg(adapter->dev, "info: num of entries in table = %d\n",
-	       adapter->num_in_scan_table);
-
-	/*
-	 * Loop through the table until the maximum is reached or until a match
-	 *   is found based on the bssid field comparison
-	 */
-	for (i = 0;
-	     i < adapter->num_in_scan_table && (!bssid || (bssid && net < 0));
-	     i++) {
-		if (!mwifiex_ssid_cmp(&adapter->scan_table[i].ssid, ssid) &&
-		    (!bssid
-		     || !memcmp(adapter->scan_table[i].mac_address, bssid,
-				ETH_ALEN))
-		    &&
-		    (mwifiex_get_cfp_by_band_and_channel_from_cfg80211
-		     (priv, (u8) adapter->scan_table[i].bss_band,
-		      (u16) adapter->scan_table[i].channel))) {
-			switch (mode) {
-			case NL80211_IFTYPE_STATION:
-			case NL80211_IFTYPE_ADHOC:
-				j = mwifiex_is_network_compatible(priv, i,
-								  mode);
-
-				if (j >= 0) {
-					if (SCAN_RSSI
-					    (adapter->scan_table[i].rssi) >
-					    best_rssi) {
-						best_rssi = SCAN_RSSI(adapter->
-								  scan_table
-								  [i].rssi);
-						net = i;
-					}
-				} else {
-					if (net == -1)
-						net = j;
-				}
-				break;
-			case NL80211_IFTYPE_UNSPECIFIED:
-			default:
-				/*
-				 * Do not check compatibility if the mode
-				 * requested is Auto/Unknown.  Allows generic
-				 * find to work without verifying against the
-				 * Adapter security settings
-				 */
-				if (SCAN_RSSI(adapter->scan_table[i].rssi) >
-				    best_rssi) {
-					best_rssi = SCAN_RSSI(adapter->
-							  scan_table[i].rssi);
-					net = i;
-				}
-				break;
-			}
-		}
-	}
-
-	return net;
-}
-
-/*
- * This function finds a specific compatible BSSID in the scan list.
- *
- * This function loops through the scan table looking for a compatible
- * match. If a BSSID matches, but the BSS is found to be not compatible
- * the function ignores it and continues to search through the rest of
- * the entries in case there is an AP with multiple SSIDs assigned to
- * the same BSSID.
- */
-s32
-mwifiex_find_bssid_in_list(struct mwifiex_private *priv, u8 *bssid,
-			   u32 mode)
-{
-	struct mwifiex_adapter *adapter = priv->adapter;
-	s32 net = -1;
-	u32 i;
-
-	if (!bssid)
-		return -1;
-
-	dev_dbg(adapter->dev, "info: FindBSSID: Num of BSSIDs = %d\n",
-	       adapter->num_in_scan_table);
-
-	/*
-	 * Look through the scan table for a compatible match. The ret return
-	 *   variable will be equal to the index in the scan table (greater
-	 *   than zero) if the network is compatible.  The loop will continue
-	 *   past a matched bssid that is not compatible in case there is an
-	 *   AP with multiple SSIDs assigned to the same BSSID
-	 */
-	for (i = 0; net < 0 && i < adapter->num_in_scan_table; i++) {
-		if (!memcmp
-		    (adapter->scan_table[i].mac_address, bssid, ETH_ALEN)
-			&& mwifiex_get_cfp_by_band_and_channel_from_cfg80211
-								(priv,
-							    (u8) adapter->
-							    scan_table[i].
-							    bss_band,
-							    (u16) adapter->
-							    scan_table[i].
-							    channel)) {
-			switch (mode) {
-			case NL80211_IFTYPE_STATION:
-			case NL80211_IFTYPE_ADHOC:
-				net = mwifiex_is_network_compatible(priv, i,
-								    mode);
-				break;
-			default:
-				net = i;
-				break;
-			}
-		}
-	}
-
-	return net;
-}
-
-/*
  * This function inserts scan command node to the scan pending queue.
  */
 void
@@ -2814,42 +1842,6 @@ mwifiex_queue_scan_cmd(struct mwifiex_private *priv,
 }
 
 /*
- * This function finds an AP with specific ssid in the scan list.
- */
-int mwifiex_find_best_network(struct mwifiex_private *priv,
-			      struct mwifiex_ssid_bssid *req_ssid_bssid)
-{
-	struct mwifiex_adapter *adapter = priv->adapter;
-	struct mwifiex_bssdescriptor *req_bss;
-	s32 i;
-
-	memset(req_ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid));
-
-	i = mwifiex_find_best_network_in_list(priv);
-
-	if (i >= 0) {
-		req_bss = &adapter->scan_table[i];
-		memcpy(&req_ssid_bssid->ssid, &req_bss->ssid,
-		       sizeof(struct mwifiex_802_11_ssid));
-		memcpy((u8 *) &req_ssid_bssid->bssid,
-		       (u8 *) &req_bss->mac_address, ETH_ALEN);
-
-		/* Make sure we are in the right mode */
-		if (priv->bss_mode == NL80211_IFTYPE_UNSPECIFIED)
-			priv->bss_mode = req_bss->bss_mode;
-	}
-
-	if (!req_ssid_bssid->ssid.ssid_len)
-		return -1;
-
-	dev_dbg(adapter->dev, "info: Best network found = [%s], "
-	       "[%pM]\n", req_ssid_bssid->ssid.ssid,
-	       req_ssid_bssid->bssid);
-
-	return 0;
-}
-
-/*
  * This function sends a scan command for all available channels to the
  * firmware, filtered on a specific SSID.
  */
@@ -2874,8 +1866,6 @@ static int mwifiex_scan_specific_ssid(struct mwifiex_private *priv,
 		return ret;
 	}
 
-	mwifiex_scan_delete_ssid_table_entry(priv, req_ssid);
-
 	scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg), GFP_KERNEL);
 	if (!scan_cfg) {
 		dev_err(adapter->dev, "failed to alloc scan_cfg\n");
@@ -2884,7 +1874,6 @@ static int mwifiex_scan_specific_ssid(struct mwifiex_private *priv,
 
 	memcpy(scan_cfg->ssid_list[0].ssid, req_ssid->ssid,
 	       req_ssid->ssid_len);
-	scan_cfg->keep_previous_scan = true;
 
 	ret = mwifiex_scan_networks(priv, scan_cfg);
 
@@ -3010,6 +1999,39 @@ mwifiex_save_curr_bcn(struct mwifiex_private *priv)
 		curr_bss->beacon_buf_size);
 	dev_dbg(priv->adapter->dev, "info: current beacon saved %d\n",
 		priv->curr_bcn_size);
+
+	curr_bss->beacon_buf = priv->curr_bcn_buf;
+
+	/* adjust the pointers in the current BSS descriptor */
+	if (curr_bss->bcn_wpa_ie)
+		curr_bss->bcn_wpa_ie =
+			(struct ieee_types_vendor_specific *)
+			(curr_bss->beacon_buf +
+			 curr_bss->wpa_offset);
+
+	if (curr_bss->bcn_rsn_ie)
+		curr_bss->bcn_rsn_ie = (struct ieee_types_generic *)
+			(curr_bss->beacon_buf +
+			 curr_bss->rsn_offset);
+
+	if (curr_bss->bcn_ht_cap)
+		curr_bss->bcn_ht_cap = (struct ieee80211_ht_cap *)
+			(curr_bss->beacon_buf +
+			 curr_bss->ht_cap_offset);
+
+	if (curr_bss->bcn_ht_info)
+		curr_bss->bcn_ht_info = (struct ieee80211_ht_info *)
+			(curr_bss->beacon_buf +
+			 curr_bss->ht_info_offset);
+
+	if (curr_bss->bcn_bss_co_2040)
+		curr_bss->bcn_bss_co_2040 =
+			(u8 *) (curr_bss->beacon_buf +
+					curr_bss->bss_co_2040_offset);
+
+	if (curr_bss->bcn_ext_cap)
+		curr_bss->bcn_ext_cap = (u8 *) (curr_bss->beacon_buf +
+				curr_bss->ext_cap_offset);
 }
 
 /*
diff --git a/drivers/net/wireless/mwifiex/sta_event.c b/drivers/net/wireless/mwifiex/sta_event.c
index fc265cab090..f204810e833 100644
--- a/drivers/net/wireless/mwifiex/sta_event.c
+++ b/drivers/net/wireless/mwifiex/sta_event.c
@@ -130,8 +130,8 @@ mwifiex_reset_connect_state(struct mwifiex_private *priv)
 	if (netif_carrier_ok(priv->netdev))
 		netif_carrier_off(priv->netdev);
 	/* Reset wireless stats signal info */
-	priv->w_stats.qual.level = 0;
-	priv->w_stats.qual.noise = 0;
+	priv->qual_level = 0;
+	priv->qual_noise = 0;
 }
 
 /*
@@ -299,11 +299,6 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
 
 	case EVENT_BG_SCAN_REPORT:
 		dev_dbg(adapter->dev, "event: BGS_REPORT\n");
-		/* Clear the previous scan result */
-		memset(adapter->scan_table, 0x00,
-		       sizeof(struct mwifiex_bssdescriptor) * IW_MAX_AP);
-		adapter->num_in_scan_table = 0;
-		adapter->bcn_buf_end = adapter->bcn_buf;
 		ret = mwifiex_send_cmd_async(priv,
 					     HostCmd_CMD_802_11_BG_SCAN_QUERY,
 					     HostCmd_ACT_GEN_GET, 0, NULL);
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index c34ff8c4f4f..3fca219bcfb 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -142,90 +142,142 @@ int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
 }
 
 /*
+ * This function fills bss descriptor structure using provided
+ * information.
+ */
+int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
+			      u8 *bssid, s32 rssi, u8 *ie_buf,
+			      size_t ie_len, u16 beacon_period,
+			      u16 cap_info_bitmap,
+			      struct mwifiex_bssdescriptor *bss_desc)
+{
+	int ret;
+
+	memcpy(bss_desc->mac_address, bssid, ETH_ALEN);
+	bss_desc->rssi = rssi;
+	bss_desc->beacon_buf = ie_buf;
+	bss_desc->beacon_buf_size = ie_len;
+	bss_desc->beacon_period = beacon_period;
+	bss_desc->cap_info_bitmap = cap_info_bitmap;
+	if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
+		dev_dbg(priv->adapter->dev, "info: InterpretIE: AP WEP enabled\n");
+		bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
+	} else {
+		bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
+	}
+	if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
+		bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
+	else
+		bss_desc->bss_mode = NL80211_IFTYPE_STATION;
+
+	ret = mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc,
+					      ie_buf, ie_len);
+
+	return ret;
+}
+
+/*
  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
  * In both Ad-Hoc and infra mode, an deauthentication is performed
  * first.
  */
-int mwifiex_bss_start(struct mwifiex_private *priv,
-		      struct mwifiex_ssid_bssid *ssid_bssid)
+int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
+		      struct mwifiex_802_11_ssid *req_ssid)
 {
 	int ret;
 	struct mwifiex_adapter *adapter = priv->adapter;
-	s32 i = -1;
+	struct mwifiex_bssdescriptor *bss_desc = NULL;
+	u8 *beacon_ie = NULL;
 
 	priv->scan_block = false;
-	if (!ssid_bssid)
-		return -1;
+
+	if (bss) {
+		/* Allocate and fill new bss descriptor */
+		bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
+				GFP_KERNEL);
+		if (!bss_desc) {
+			dev_err(priv->adapter->dev, " failed to alloc bss_desc\n");
+			return -ENOMEM;
+		}
+		beacon_ie = kzalloc(bss->len_beacon_ies, GFP_KERNEL);
+		if (!beacon_ie) {
+			dev_err(priv->adapter->dev, " failed to alloc bss_desc\n");
+			return -ENOMEM;
+		}
+		memcpy(beacon_ie, bss->information_elements,
+		       bss->len_beacon_ies);
+		ret = mwifiex_fill_new_bss_desc(priv, bss->bssid, bss->signal,
+						beacon_ie, bss->len_beacon_ies,
+						bss->beacon_interval,
+						bss->capability, bss_desc);
+		if (ret)
+			goto done;
+	}
 
 	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 		/* Infra mode */
 		ret = mwifiex_deauthenticate(priv, NULL);
 		if (ret)
-			return ret;
+			goto done;
 
-		/* Search for the requested SSID in the scan table */
-		if (ssid_bssid->ssid.ssid_len)
-			i = mwifiex_find_ssid_in_list(priv, &ssid_bssid->ssid,
-						NULL, NL80211_IFTYPE_STATION);
-		else
-			i = mwifiex_find_bssid_in_list(priv,
-						(u8 *) &ssid_bssid->bssid,
-						NL80211_IFTYPE_STATION);
-		if (i < 0)
-			return -1;
+		ret = mwifiex_check_network_compatibility(priv, bss_desc);
+		if (ret)
+			goto done;
+
+		dev_dbg(adapter->dev, "info: SSID found in scan list ... "
+				      "associating...\n");
 
-		dev_dbg(adapter->dev,
-			"info: SSID found in scan list ... associating...\n");
+		if (!netif_queue_stopped(priv->netdev))
+			netif_stop_queue(priv->netdev);
 
 		/* Clear any past association response stored for
 		 * application retrieval */
 		priv->assoc_rsp_size = 0;
-		ret = mwifiex_associate(priv, &adapter->scan_table[i]);
-		if (ret)
-			return ret;
+		ret = mwifiex_associate(priv, bss_desc);
+		if (bss)
+			cfg80211_put_bss(bss);
 	} else {
 		/* Adhoc mode */
 		/* If the requested SSID matches current SSID, return */
-		if (ssid_bssid->ssid.ssid_len &&
+		if (bss_desc && bss_desc->ssid.ssid_len &&
 		    (!mwifiex_ssid_cmp
 		     (&priv->curr_bss_params.bss_descriptor.ssid,
-		      &ssid_bssid->ssid)))
+		      &bss_desc->ssid))) {
+			kfree(bss_desc);
+			kfree(beacon_ie);
 			return 0;
+		}
 
 		/* Exit Adhoc mode first */
 		dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
 		ret = mwifiex_deauthenticate(priv, NULL);
 		if (ret)
-			return ret;
+			goto done;
 
 		priv->adhoc_is_link_sensed = false;
 
-		/* Search for the requested network in the scan table */
-		if (ssid_bssid->ssid.ssid_len)
-			i = mwifiex_find_ssid_in_list(priv,
-						      &ssid_bssid->ssid, NULL,
-						      NL80211_IFTYPE_ADHOC);
-		else
-			i = mwifiex_find_bssid_in_list(priv,
-						       (u8 *)&ssid_bssid->bssid,
-						       NL80211_IFTYPE_ADHOC);
-
-		if (i >= 0) {
+		ret = mwifiex_check_network_compatibility(priv, bss_desc);
+
+		if (!netif_queue_stopped(priv->netdev))
+			netif_stop_queue(priv->netdev);
+
+		if (!ret) {
 			dev_dbg(adapter->dev, "info: network found in scan"
 							" list. Joining...\n");
-			ret = mwifiex_adhoc_join(priv, &adapter->scan_table[i]);
-			if (ret)
-				return ret;
+			ret = mwifiex_adhoc_join(priv, bss_desc);
+			if (bss)
+				cfg80211_put_bss(bss);
 		} else {
 			dev_dbg(adapter->dev, "info: Network not found in "
 				"the list, creating adhoc with ssid = %s\n",
-			       ssid_bssid->ssid.ssid);
-			ret = mwifiex_adhoc_start(priv, &ssid_bssid->ssid);
-			if (ret)
-				return ret;
+				req_ssid->ssid);
+			ret = mwifiex_adhoc_start(priv, req_ssid);
 		}
 	}
 
+done:
+	kfree(bss_desc);
+	kfree(beacon_ie);
 	return ret;
 }
 
@@ -376,7 +428,6 @@ int mwifiex_get_bss_info(struct mwifiex_private *priv,
 {
 	struct mwifiex_adapter *adapter = priv->adapter;
 	struct mwifiex_bssdescriptor *bss_desc;
-	s32 tbl_idx;
 
 	if (!info)
 		return -1;
@@ -394,17 +445,6 @@ int mwifiex_get_bss_info(struct mwifiex_private *priv,
 
 	info->region_code = adapter->region_code;
 
-	/* Scan table index if connected */
-	info->scan_table_idx = 0;
-	if (priv->media_connected) {
-		tbl_idx =
-			mwifiex_find_ssid_in_list(priv, &bss_desc->ssid,
-						  bss_desc->mac_address,
-						  priv->bss_mode);
-		if (tbl_idx >= 0)
-			info->scan_table_idx = tbl_idx;
-	}
-
 	info->media_connected = priv->media_connected;
 
 	info->max_power_level = priv->max_tx_power_level;
@@ -586,50 +626,6 @@ static int mwifiex_bss_ioctl_ibss_channel(struct mwifiex_private *priv,
 }
 
 /*
- * IOCTL request handler to find a particular BSS.
- *
- * The BSS can be searched with either a BSSID or a SSID. If none of
- * these are provided, just the best BSS (best RSSI) is returned.
- */
-int mwifiex_bss_ioctl_find_bss(struct mwifiex_private *priv,
-			       struct mwifiex_ssid_bssid *ssid_bssid)
-{
-	struct mwifiex_adapter *adapter = priv->adapter;
-	struct mwifiex_bssdescriptor *bss_desc;
-	u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
-	u8 mac[ETH_ALEN];
-	int i = 0;
-
-	if (memcmp(ssid_bssid->bssid, zero_mac, sizeof(zero_mac))) {
-		i = mwifiex_find_bssid_in_list(priv,
-					       (u8 *) ssid_bssid->bssid,
-					       priv->bss_mode);
-		if (i < 0) {
-			memcpy(mac, ssid_bssid->bssid, sizeof(mac));
-			dev_err(adapter->dev, "cannot find bssid %pM\n", mac);
-			return -1;
-		}
-		bss_desc = &adapter->scan_table[i];
-		memcpy(&ssid_bssid->ssid, &bss_desc->ssid,
-				sizeof(struct mwifiex_802_11_ssid));
-	} else if (ssid_bssid->ssid.ssid_len) {
-		i = mwifiex_find_ssid_in_list(priv, &ssid_bssid->ssid, NULL,
-					      priv->bss_mode);
-		if (i < 0) {
-			dev_err(adapter->dev, "cannot find ssid %s\n",
-					ssid_bssid->ssid.ssid);
-			return -1;
-		}
-		bss_desc = &adapter->scan_table[i];
-		memcpy(ssid_bssid->bssid, bss_desc->mac_address, ETH_ALEN);
-	} else {
-		return mwifiex_find_best_network(priv, ssid_bssid);
-	}
-
-	return 0;
-}
-
-/*
  * IOCTL request handler to change Ad-Hoc channel.
  *
  * This function allocates the IOCTL request buffer, fills it
@@ -653,6 +649,8 @@ mwifiex_drv_change_adhoc_chan(struct mwifiex_private *priv, int channel)
 	struct mwifiex_bss_info bss_info;
 	struct mwifiex_ssid_bssid ssid_bssid;
 	u16 curr_chan = 0;
+	struct cfg80211_bss *bss = NULL;
+	struct ieee80211_channel *chan;
 
 	memset(&bss_info, 0, sizeof(bss_info));
 
@@ -688,12 +686,20 @@ mwifiex_drv_change_adhoc_chan(struct mwifiex_private *priv, int channel)
 		ret = -1;
 		goto done;
 	}
-	/* Start/Join Adhoc network */
-	memset(&ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid));
-	memcpy(&ssid_bssid.ssid, &bss_info.ssid,
-	       sizeof(struct mwifiex_802_11_ssid));
 
-	ret = mwifiex_bss_start(priv, &ssid_bssid);
+	chan = __ieee80211_get_channel(priv->wdev->wiphy,
+			ieee80211_channel_to_frequency(channel,
+						priv->curr_bss_params.band));
+
+	/* Find the BSS we want using available scan results */
+	bss = cfg80211_get_bss(priv->wdev->wiphy, chan, bss_info.bssid,
+			       bss_info.ssid.ssid, bss_info.ssid.ssid_len,
+			       WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
+	if (!bss)
+		wiphy_warn(priv->wdev->wiphy, "assoc: bss %pM not in scan results\n",
+			  bss_info.bssid);
+
+	ret = mwifiex_bss_start(priv, bss, &bss_info.ssid);
 done:
 	return ret;
 }
@@ -1280,9 +1286,9 @@ int mwifiex_get_signal_info(struct mwifiex_private *priv,
 
 	if (!status) {
 		if (signal->selector & BCN_RSSI_AVG_MASK)
-			priv->w_stats.qual.level = signal->bcn_rssi_avg;
+			priv->qual_level = signal->bcn_rssi_avg;
 		if (signal->selector & BCN_NF_AVG_MASK)
-			priv->w_stats.qual.noise = signal->bcn_nf_avg;
+			priv->qual_noise = signal->bcn_nf_avg;
 	}
 
 	return status;
@@ -1341,18 +1347,8 @@ int
 mwifiex_get_stats_info(struct mwifiex_private *priv,
 		       struct mwifiex_ds_get_stats *log)
 {
-	int ret;
-
-	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG,
+	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG,
 				    HostCmd_ACT_GEN_GET, 0, log);
-
-	if (!ret) {
-		priv->w_stats.discard.fragment = log->fcs_error;
-		priv->w_stats.discard.retries = log->retry;
-		priv->w_stats.discard.misc = log->ack_failure;
-	}
-
-	return ret;
 }
 
 /*
@@ -1594,7 +1590,7 @@ mwifiex_set_gen_ie(struct mwifiex_private *priv, u8 *ie, int ie_len)
 {
 	struct mwifiex_ds_misc_gen_ie gen_ie;
 
-	if (ie_len > IW_CUSTOM_MAX)
+	if (ie_len > IEEE_MAX_IE_SIZE)
 		return -EFAULT;
 
 	gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;