backport latest wireless changes from 3.4 kernel

Signed-off-by: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>

20 files changed, 507 insertions, 230 deletions

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 1d11fa2..9e745e21 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3046,6 +3046,26 @@ void skb_tstamp_tx(struct sk_buff *orig_skb,
 }
 EXPORT_SYMBOL_GPL(skb_tstamp_tx);
 
+void skb_complete_wifi_ack(struct sk_buff *skb, bool acked)
+{
+	struct sock *sk = skb->sk;
+	struct sock_exterr_skb *serr;
+	int err;
+
+	skb->wifi_acked_valid = 1;
+	skb->wifi_acked = acked;
+
+	serr = SKB_EXT_ERR(skb);
+	memset(serr, 0, sizeof(*serr));
+	serr->ee.ee_errno = ENOMSG;
+	serr->ee.ee_origin = SO_EE_ORIGIN_TXSTATUS;
+
+	err = sock_queue_err_skb(sk, skb);
+	if (err)
+		kfree_skb(skb);
+}
+EXPORT_SYMBOL_GPL(skb_complete_wifi_ack);
+
 
 /**
  * skb_partial_csum_set - set up and verify partial csum values for packet
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 12c80cc..7917c74 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -488,6 +488,14 @@ int wiphy_register(struct wiphy *wiphy)
 	int i;
 	u16 ifmodes = wiphy->interface_modes;
 
+	if (WARN_ON((wiphy->wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
+		    !(wiphy->wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)))
+		return -EINVAL;
+
+	if (WARN_ON(wiphy->ap_sme_capa &&
+		    !(wiphy->flags & WIPHY_FLAG_HAVE_AP_SME)))
+		return -EINVAL;
+
 	if (WARN_ON(wiphy->addresses && !wiphy->n_addresses))
 		return -EINVAL;
 
@@ -577,7 +585,7 @@ int wiphy_register(struct wiphy *wiphy)
 	}
 
 	/* set up regulatory info */
-	wiphy_update_regulatory(wiphy, NL80211_REGDOM_SET_BY_CORE);
+	regulatory_update(wiphy, NL80211_REGDOM_SET_BY_CORE);
 
 	list_add_rcu(&rdev->list, &cfg80211_rdev_list);
 	cfg80211_rdev_list_generation++;
@@ -611,6 +619,9 @@ int wiphy_register(struct wiphy *wiphy)
 	if (res)
 		goto out_rm_dev;
 
+	rtnl_lock();
+	rdev->wiphy.registered = true;
+	rtnl_unlock();
 	return 0;
 
 out_rm_dev:
@@ -642,6 +653,10 @@ void wiphy_unregister(struct wiphy *wiphy)
 {
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
+	rtnl_lock();
+	rdev->wiphy.registered = false;
+	rtnl_unlock();
+
 	rfkill_unregister(rdev->rfkill);
 
 	/* protect the device list */
@@ -917,7 +932,8 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
 		 * Configure power management to the driver here so that its
 		 * correctly set also after interface type changes etc.
 		 */
-		if (wdev->iftype == NL80211_IFTYPE_STATION &&
+		if ((wdev->iftype == NL80211_IFTYPE_STATION ||
+		     wdev->iftype == NL80211_IFTYPE_P2P_CLIENT) &&
 		    rdev->ops->set_power_mgmt)
 			if (rdev->ops->set_power_mgmt(wdev->wiphy, dev,
 						      wdev->ps,
diff --git a/net/wireless/core.h b/net/wireless/core.h
index df7ced2..ce5597c 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -275,8 +275,6 @@ extern int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
 			       char *newname);
 
 void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
-void wiphy_update_regulatory(struct wiphy *wiphy,
-			     enum nl80211_reg_initiator setby);
 
 void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
 void cfg80211_bss_age(struct cfg80211_registered_device *dev,
@@ -449,9 +447,6 @@ int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
 		      enum nl80211_channel_type channel_type);
 
 u16 cfg80211_calculate_bitrate(struct rate_info *rate);
-int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
-			   const u8 *rates, unsigned int n_rates,
-			   u32 *mask);
 
 int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
 			   const u8 *rates, unsigned int n_rates,
diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c
index 39765bc..920cabe 100644
--- a/net/wireless/debugfs.c
+++ b/net/wireless/debugfs.c
@@ -13,12 +13,6 @@
 #include "core.h"
 #include "debugfs.h"
 
-static int cfg80211_open_file_generic(struct inode *inode, struct file *file)
-{
-	file->private_data = inode->i_private;
-	return 0;
-}
-
 #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)		\
 static ssize_t name## _read(struct file *file, char __user *userbuf,	\
 			    size_t count, loff_t *ppos)			\
@@ -33,7 +27,7 @@ static ssize_t name## _read(struct file *file, char __user *userbuf,	\
 									\
 static const struct file_operations name## _ops = {			\
 	.read = name## _read,						\
-	.open = cfg80211_open_file_generic,				\
+	.open = simple_open,						\
 	.llseek = generic_file_llseek,					\
 };
 
@@ -102,7 +96,7 @@ static ssize_t ht40allow_map_read(struct file *file,
 
 static const struct file_operations ht40allow_map_ops = {
 	.read = ht40allow_map_read,
-	.open = cfg80211_open_file_generic,
+	.open = simple_open,
 	.llseek = default_llseek,
 };
 
diff --git a/net/wireless/lib80211.c b/net/wireless/lib80211.c
index 3268fac..a55c27b 100644
--- a/net/wireless/lib80211.c
+++ b/net/wireless/lib80211.c
@@ -41,6 +41,11 @@ struct lib80211_crypto_alg {
 static LIST_HEAD(lib80211_crypto_algs);
 static DEFINE_SPINLOCK(lib80211_crypto_lock);
 
+static void lib80211_crypt_deinit_entries(struct lib80211_crypt_info *info,
+					  int force);
+static void lib80211_crypt_quiescing(struct lib80211_crypt_info *info);
+static void lib80211_crypt_deinit_handler(unsigned long data);
+
 const char *print_ssid(char *buf, const char *ssid, u8 ssid_len)
 {
 	const char *s = ssid;
@@ -111,7 +116,8 @@ void lib80211_crypt_info_free(struct lib80211_crypt_info *info)
 }
 EXPORT_SYMBOL(lib80211_crypt_info_free);
 
-void lib80211_crypt_deinit_entries(struct lib80211_crypt_info *info, int force)
+static void lib80211_crypt_deinit_entries(struct lib80211_crypt_info *info,
+					  int force)
 {
 	struct lib80211_crypt_data *entry, *next;
 	unsigned long flags;
@@ -131,10 +137,9 @@ void lib80211_crypt_deinit_entries(struct lib80211_crypt_info *info, int force)
 	}
 	spin_unlock_irqrestore(info->lock, flags);
 }
-EXPORT_SYMBOL(lib80211_crypt_deinit_entries);
 
 /* After this, crypt_deinit_list won't accept new members */
-void lib80211_crypt_quiescing(struct lib80211_crypt_info *info)
+static void lib80211_crypt_quiescing(struct lib80211_crypt_info *info)
 {
 	unsigned long flags;
 
@@ -142,9 +147,8 @@ void lib80211_crypt_quiescing(struct lib80211_crypt_info *info)
 	info->crypt_quiesced = 1;
 	spin_unlock_irqrestore(info->lock, flags);
 }
-EXPORT_SYMBOL(lib80211_crypt_quiescing);
 
-void lib80211_crypt_deinit_handler(unsigned long data)
+static void lib80211_crypt_deinit_handler(unsigned long data)
 {
 	struct lib80211_crypt_info *info = (struct lib80211_crypt_info *)data;
 	unsigned long flags;
@@ -160,7 +164,6 @@ void lib80211_crypt_deinit_handler(unsigned long data)
 	}
 	spin_unlock_irqrestore(info->lock, flags);
 }
-EXPORT_SYMBOL(lib80211_crypt_deinit_handler);
 
 void lib80211_crypt_delayed_deinit(struct lib80211_crypt_info *info,
 				    struct lib80211_crypt_data **crypt)
diff --git a/net/wireless/lib80211_crypt_ccmp.c b/net/wireless/lib80211_crypt_ccmp.c
index dacb3b4..755738d 100644
--- a/net/wireless/lib80211_crypt_ccmp.c
+++ b/net/wireless/lib80211_crypt_ccmp.c
@@ -77,8 +77,6 @@ static void *lib80211_ccmp_init(int key_idx)
 
 	priv->tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tfm)) {
-		printk(KERN_DEBUG "lib80211_crypt_ccmp: could not allocate "
-		       "crypto API aes\n");
 		priv->tfm = NULL;
 		goto fail;
 	}
diff --git a/net/wireless/lib80211_crypt_tkip.c b/net/wireless/lib80211_crypt_tkip.c
index 7ea4f2b..3873484 100644
--- a/net/wireless/lib80211_crypt_tkip.c
+++ b/net/wireless/lib80211_crypt_tkip.c
@@ -101,7 +101,6 @@ static void *lib80211_tkip_init(int key_idx)
 	priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
 						CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm_arc4)) {
-		printk(KERN_DEBUG pr_fmt("could not allocate crypto API arc4\n"));
 		priv->tx_tfm_arc4 = NULL;
 		goto fail;
 	}
@@ -109,7 +108,6 @@ static void *lib80211_tkip_init(int key_idx)
 	priv->tx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
 						 CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm_michael)) {
-		printk(KERN_DEBUG pr_fmt("could not allocate crypto API michael_mic\n"));
 		priv->tx_tfm_michael = NULL;
 		goto fail;
 	}
@@ -117,7 +115,6 @@ static void *lib80211_tkip_init(int key_idx)
 	priv->rx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
 						CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm_arc4)) {
-		printk(KERN_DEBUG pr_fmt("could not allocate crypto API arc4\n"));
 		priv->rx_tfm_arc4 = NULL;
 		goto fail;
 	}
@@ -125,7 +122,6 @@ static void *lib80211_tkip_init(int key_idx)
 	priv->rx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
 						 CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm_michael)) {
-		printk(KERN_DEBUG pr_fmt("could not allocate crypto API michael_mic\n"));
 		priv->rx_tfm_michael = NULL;
 		goto fail;
 	}
diff --git a/net/wireless/lib80211_crypt_wep.c b/net/wireless/lib80211_crypt_wep.c
index 2f265e0..c130401 100644
--- a/net/wireless/lib80211_crypt_wep.c
+++ b/net/wireless/lib80211_crypt_wep.c
@@ -50,16 +50,12 @@ static void *lib80211_wep_init(int keyidx)
 
 	priv->tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm)) {
-		printk(KERN_DEBUG "lib80211_crypt_wep: could not allocate "
-		       "crypto API arc4\n");
 		priv->tx_tfm = NULL;
 		goto fail;
 	}
 
 	priv->rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm)) {
-		printk(KERN_DEBUG "lib80211_crypt_wep: could not allocate "
-		       "crypto API arc4\n");
 		priv->rx_tfm = NULL;
 		goto fail;
 	}
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index 5c11608..ba21ab2 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -1,4 +1,5 @@
 #include <linux/ieee80211.h>
+#include <linux/export.h>
 #include <net/cfg80211.h>
 #include "nl80211.h"
 #include "core.h"
@@ -12,14 +13,18 @@
 #define MESH_HOLD_T 		100
 
 #define MESH_PATH_TIMEOUT	5000
+#define MESH_RANN_INTERVAL      5000
 
 /*
  * Minimum interval between two consecutive PREQs originated by the same
  * interface
  */
 #define MESH_PREQ_MIN_INT	10
+#define MESH_PERR_MIN_INT	100
 #define MESH_DIAM_TRAVERSAL_TIME 50
 
+#define MESH_RSSI_THRESHOLD	0
+
 /*
  * A path will be refreshed if it is used PATH_REFRESH_TIME milliseconds
  * before timing out.  This way it will remain ACTIVE and no data frames
@@ -45,10 +50,15 @@ const struct mesh_config default_mesh_config = {
 	.dot11MeshMaxPeerLinks = MESH_MAX_ESTAB_PLINKS,
 	.dot11MeshHWMPactivePathTimeout = MESH_PATH_TIMEOUT,
 	.dot11MeshHWMPpreqMinInterval = MESH_PREQ_MIN_INT,
+	.dot11MeshHWMPperrMinInterval = MESH_PERR_MIN_INT,
 	.dot11MeshHWMPnetDiameterTraversalTime = MESH_DIAM_TRAVERSAL_TIME,
 	.dot11MeshHWMPmaxPREQretries = MESH_MAX_PREQ_RETRIES,
 	.path_refresh_time = MESH_PATH_REFRESH_TIME,
 	.min_discovery_timeout = MESH_MIN_DISCOVERY_TIMEOUT,
+	.dot11MeshHWMPRannInterval = MESH_RANN_INTERVAL,
+	.dot11MeshGateAnnouncementProtocol = false,
+	.dot11MeshForwarding = true,
+	.rssi_threshold = MESH_RSSI_THRESHOLD,
 };
 
 const struct mesh_setup default_mesh_setup = {
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index f53ba4e..263cbd8 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1868,6 +1868,9 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
 	if (!rdev->ops->get_key)
 		return -EOPNOTSUPP;
 
+	if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
+		return -ENOENT;
+
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return -ENOMEM;
@@ -1885,10 +1888,6 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
 	if (mac_addr)
 		NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
 
-	if (pairwise && mac_addr &&
-	    !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
-		return -ENOENT;
-
 	err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
 				 mac_addr, &cookie, get_key_callback);
 
@@ -2060,7 +2059,7 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
 	wdev_lock(dev->ieee80211_ptr);
 	err = nl80211_key_allowed(dev->ieee80211_ptr);
 
-	if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
+	if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
 	    !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
 		err = -ENOENT;
 
@@ -2811,6 +2810,14 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 	if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
 		return -EINVAL;
 
+	/* HT requires QoS, but if we don't have that just ignore HT/VHT
+	 * as userspace might just pass through the capabilities from the IEs
+	 * directly, rather than enforcing this restriction and returning an
+	 * error in this case.
+	 */
+	if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
+		params.ht_capa = NULL;
+
 	switch (dev->ieee80211_ptr->iftype) {
 	case NL80211_IFTYPE_AP:
 	case NL80211_IFTYPE_AP_VLAN:
@@ -3846,27 +3853,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 		       nla_data(info->attrs[NL80211_ATTR_IE]),
 		       request->ie_len);
 	}
-	for (i = 0; i < IEEE80211_NUM_BANDS; i++)
-		if (wiphy->bands[i])
-			request->rates[i] =
-				(1 << wiphy->bands[i]->n_bitrates) - 1;
-	if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
-		nla_for_each_nested(attr,
-				    info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
-				    tmp) {
-			enum ieee80211_band band = nla_type(attr);
-			if (band < 0 || band >= IEEE80211_NUM_BANDS) {
-				err = -EINVAL;
-				goto out_free;
-			}
-			err = ieee80211_get_ratemask(wiphy->bands[band],
-						     nla_data(attr),
-						     nla_len(attr),
-						     &request->rates[band]);
-			if (err)
-				goto out_free;
-		}
-	}
 
 	for (i = 0; i < IEEE80211_NUM_BANDS; i++)
 		if (wiphy->bands[i])
@@ -3897,8 +3883,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 
 	request->dev = dev;
 	request->wiphy = &rdev->wiphy;
-	request->no_cck =
-		nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
 
 	rdev->scan_req = request;
 	err = rdev->ops->scan(&rdev->wiphy, dev, request);
@@ -5082,6 +5066,9 @@ int cfg80211_testmode_reply(struct sk_buff *skb)
 	void *hdr = ((void **)skb->cb)[1];
 	struct nlattr *data = ((void **)skb->cb)[2];
 
+	/* clear CB data for netlink core to own from now on */
+	memset(skb->cb, 0, sizeof(skb->cb));
+
 	if (WARN_ON(!rdev->testmode_info)) {
 		kfree_skb(skb);
 		return -EINVAL;
@@ -5108,6 +5095,9 @@ void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
 	void *hdr = ((void **)skb->cb)[1];
 	struct nlattr *data = ((void **)skb->cb)[2];
 
+	/* clear CB data for netlink core to own from now on */
+	memset(skb->cb, 0, sizeof(skb->cb));
+
 	nla_nest_end(skb, data);
 	genlmsg_end(skb, hdr);
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), skb, 0,
diff --git a/net/wireless/radiotap.c b/net/wireless/radiotap.c
index dbe35e1..60549a4 100644
--- a/net/wireless/radiotap.c
+++ b/net/wireless/radiotap.c
@@ -15,6 +15,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/export.h>
 #include <net/cfg80211.h>
 #include <net/ieee80211_radiotap.h>
 #include <asm/unaligned.h>
@@ -94,6 +95,10 @@ int ieee80211_radiotap_iterator_init(
 	struct ieee80211_radiotap_header *radiotap_header,
 	int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns)
 {
+	/* check the radiotap header can actually be present */
+	if (max_length < sizeof(struct ieee80211_radiotap_header))
+		return -EINVAL;
+
 	/* Linux only supports version 0 radiotap format */
 	if (radiotap_header->it_version)
 		return -EINVAL;
@@ -117,6 +122,10 @@ int ieee80211_radiotap_iterator_init(
 	/* find payload start allowing for extended bitmap(s) */
 
 	if (iterator->_bitmap_shifter & (1<<IEEE80211_RADIOTAP_EXT)) {
+		if ((unsigned long)iterator->_arg -
+		    (unsigned long)iterator->_rtheader + sizeof(uint32_t) >
+		    (unsigned long)iterator->_max_length)
+			return -EINVAL;
 		while (get_unaligned_le32(iterator->_arg) &
 					(1 << IEEE80211_RADIOTAP_EXT)) {
 			iterator->_arg += sizeof(uint32_t);
@@ -128,7 +137,8 @@ int ieee80211_radiotap_iterator_init(
 			 */
 
 			if ((unsigned long)iterator->_arg -
-			    (unsigned long)iterator->_rtheader >
+			    (unsigned long)iterator->_rtheader +
+			    sizeof(uint32_t) >
 			    (unsigned long)iterator->_max_length)
 				return -EINVAL;
 		}
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 26bc4c1..796a0ee 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -2,13 +2,22 @@
  * Copyright 2002-2005, Instant802 Networks, Inc.
  * Copyright 2005-2006, Devicescape Software, Inc.
  * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
- * Copyright 2008	Luis R. Rodriguez <lrodriguz@atheros.com>
+ * Copyright 2008-2011	Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+
 /**
  * DOC: Wireless regulatory infrastructure
  *
@@ -36,12 +45,14 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kernel.h>
+#include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/list.h>
 #include <linux/random.h>
 #include <linux/ctype.h>
 #include <linux/nl80211.h>
 #include <linux/platform_device.h>
+#include <linux/moduleparam.h>
 #include <net/cfg80211.h>
 #include "core.h"
 #include "reg.h"
@@ -49,10 +60,8 @@
 #include "nl80211.h"
 
 #ifdef CONFIG_CFG80211_REG_DEBUG
-#define REG_DBG_PRINT(format, args...) \
-	do { \
-		printk(KERN_DEBUG pr_fmt(format), ##args);	\
-	} while (0)
+#define REG_DBG_PRINT(format, args...)			\
+	printk(KERN_DEBUG pr_fmt(format), ##args)
 #else
 #define REG_DBG_PRINT(args...)
 #endif
@@ -782,9 +791,10 @@ static void chan_reg_rule_print_dbg(struct ieee80211_channel *chan,
 		      chan->center_freq,
 		      KHZ_TO_MHZ(desired_bw_khz));
 
-	REG_DBG_PRINT("%d KHz - %d KHz @  KHz), (%s mBi, %d mBm)\n",
+	REG_DBG_PRINT("%d KHz - %d KHz @ %d KHz), (%s mBi, %d mBm)\n",
 		      freq_range->start_freq_khz,
 		      freq_range->end_freq_khz,
+		      freq_range->max_bandwidth_khz,
 		      max_antenna_gain,
 		      power_rule->max_eirp);
 }
@@ -885,11 +895,22 @@ static void handle_channel(struct wiphy *wiphy,
 	chan->flags = flags | bw_flags | map_regdom_flags(reg_rule->flags);
 	chan->max_antenna_gain = min(chan->orig_mag,
 		(int) MBI_TO_DBI(power_rule->max_antenna_gain));
-	if (chan->orig_mpwr)
-		chan->max_power = min(chan->orig_mpwr,
-			(int) MBM_TO_DBM(power_rule->max_eirp));
-	else
-		chan->max_power = (int) MBM_TO_DBM(power_rule->max_eirp);
+	chan->max_reg_power = (int) MBM_TO_DBM(power_rule->max_eirp);
+	if (chan->orig_mpwr) {
+		/*
+		 * Devices that have their own custom regulatory domain
+		 * but also use WIPHY_FLAG_STRICT_REGULATORY will follow the
+		 * passed country IE power settings.
+		 */
+		if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE &&
+		    wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY &&
+		    wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY)
+			chan->max_power = chan->max_reg_power;
+		else
+			chan->max_power = min(chan->orig_mpwr,
+					      chan->max_reg_power);
+	} else
+		chan->max_power = chan->max_reg_power;
 }
 
 static void handle_band(struct wiphy *wiphy,
@@ -920,7 +941,7 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 	    wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY) {
 		REG_DBG_PRINT("Ignoring regulatory request %s "
 			      "since the driver uses its own custom "
-			      "regulatory domain ",
+			      "regulatory domain\n",
 			      reg_initiator_name(initiator));
 		return true;
 	}
@@ -933,8 +954,8 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 	    initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
 	    !is_world_regdom(last_request->alpha2)) {
 		REG_DBG_PRINT("Ignoring regulatory request %s "
-			      "since the driver requires its own regulaotry "
-			      "domain to be set first",
+			      "since the driver requires its own regulatory "
+			      "domain to be set first\n",
 			      reg_initiator_name(initiator));
 		return true;
 	}
@@ -942,14 +963,6 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 	return false;
 }
 
-static void update_all_wiphy_regulatory(enum nl80211_reg_initiator initiator)
-{
-	struct cfg80211_registered_device *rdev;
-
-	list_for_each_entry(rdev, &cfg80211_rdev_list, list)
-		wiphy_update_regulatory(&rdev->wiphy, initiator);
-}
-
 static void handle_reg_beacon(struct wiphy *wiphy,
 			      unsigned int chan_idx,
 			      struct reg_beacon *reg_beacon)
@@ -1149,14 +1162,18 @@ static void reg_process_ht_flags(struct wiphy *wiphy)
 
 }
 
-void wiphy_update_regulatory(struct wiphy *wiphy,
-			     enum nl80211_reg_initiator initiator)
+static void wiphy_update_regulatory(struct wiphy *wiphy,
+				    enum nl80211_reg_initiator initiator)
 {
 	enum ieee80211_band band;
 
+	assert_reg_lock();
+
 	if (ignore_reg_update(wiphy, initiator))
 		return;
 
+	last_request->dfs_region = cfg80211_regdomain->dfs_region;
+
 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 		if (wiphy->bands[band])
 			handle_band(wiphy, band, initiator);
@@ -1168,6 +1185,34 @@ void wiphy_update_regulatory(struct wiphy *wiphy,
 		wiphy->reg_notifier(wiphy, last_request);
 }
 
+void regulatory_update(struct wiphy *wiphy,
+		       enum nl80211_reg_initiator setby)
+{
+	mutex_lock(&reg_mutex);
+	wiphy_update_regulatory(wiphy, setby);
+	mutex_unlock(&reg_mutex);
+}
+
+static void update_all_wiphy_regulatory(enum nl80211_reg_initiator initiator)
+{
+	struct cfg80211_registered_device *rdev;
+	struct wiphy *wiphy;
+
+	list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
+		wiphy = &rdev->wiphy;
+		wiphy_update_regulatory(wiphy, initiator);
+		/*
+		 * Regulatory updates set by CORE are ignored for custom
+		 * regulatory cards. Let us notify the changes to the driver,
+		 * as some drivers used this to restore its orig_* reg domain.
+		 */
+		if (initiator == NL80211_REGDOM_SET_BY_CORE &&
+		    wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY &&
+		    wiphy->reg_notifier)
+			wiphy->reg_notifier(wiphy, last_request);
+	}
+}
+
 static void handle_channel_custom(struct wiphy *wiphy,
 				  enum ieee80211_band band,
 				  unsigned int chan_idx,
@@ -1456,18 +1501,18 @@ new_request:
 }
 
 /* This processes *all* regulatory hints */
-static void reg_process_hint(struct regulatory_request *reg_request)
+static void reg_process_hint(struct regulatory_request *reg_request,
+			     enum nl80211_reg_initiator reg_initiator)
 {
 	int r = 0;
 	struct wiphy *wiphy = NULL;
-	enum nl80211_reg_initiator initiator = reg_request->initiator;
 
 	BUG_ON(!reg_request->alpha2);
 
 	if (wiphy_idx_valid(reg_request->wiphy_idx))
 		wiphy = wiphy_idx_to_wiphy(reg_request->wiphy_idx);
 
-	if (reg_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
+	if (reg_initiator == NL80211_REGDOM_SET_BY_DRIVER &&
 	    !wiphy) {
 		kfree(reg_request);
 		return;
@@ -1477,7 +1522,7 @@ static void reg_process_hint(struct regulatory_request *reg_request)
 	/* This is required so that the orig_* parameters are saved */
 	if (r == -EALREADY && wiphy &&
 	    wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY) {
-		wiphy_update_regulatory(wiphy, initiator);
+		wiphy_update_regulatory(wiphy, reg_initiator);
 		return;
 	}
 
@@ -1486,7 +1531,7 @@ static void reg_process_hint(struct regulatory_request *reg_request)
 	 * source of bogus requests.
 	 */
 	if (r != -EALREADY &&
-	    reg_request->initiator == NL80211_REGDOM_SET_BY_USER)
+	    reg_initiator == NL80211_REGDOM_SET_BY_USER)
 		schedule_delayed_work(&reg_timeout, msecs_to_jiffies(3142));
 }
 
@@ -1505,7 +1550,7 @@ static void reg_process_pending_hints(void)
 	/* When last_request->processed becomes true this will be rescheduled */
 	if (last_request && !last_request->processed) {
 		REG_DBG_PRINT("Pending regulatory request, waiting "
-			      "for it to be processed...");
+			      "for it to be processed...\n");
 		goto out;
 	}
 
@@ -1523,7 +1568,7 @@ static void reg_process_pending_hints(void)
 
 	spin_unlock(&reg_requests_lock);
 
-	reg_process_hint(reg_request);
+	reg_process_hint(reg_request, reg_request->initiator);
 
 out:
 	mutex_unlock(&reg_mutex);
@@ -1768,6 +1813,26 @@ static void restore_alpha2(char *alpha2, bool reset_user)
 		REG_DBG_PRINT("Restoring regulatory settings\n");
 }
 
+static void restore_custom_reg_settings(struct wiphy *wiphy)
+{
+	struct ieee80211_supported_band *sband;
+	enum ieee80211_band band;
+	struct ieee80211_channel *chan;
+	int i;
+
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		sband = wiphy->bands[band];
+		if (!sband)
+			continue;
+		for (i = 0; i < sband->n_channels; i++) {
+			chan = &sband->channels[i];
+			chan->flags = chan->orig_flags;
+			chan->max_antenna_gain = chan->orig_mag;
+			chan->max_power = chan->orig_mpwr;
+		}
+	}
+}
+
 /*
  * Restoring regulatory settings involves ingoring any
  * possibly stale country IE information and user regulatory
@@ -1790,6 +1855,7 @@ static void restore_regulatory_settings(bool reset_user)
 	struct reg_beacon *reg_beacon, *btmp;
 	struct regulatory_request *reg_request, *tmp;
 	LIST_HEAD(tmp_reg_req_list);
+	struct cfg80211_registered_device *rdev;
 
 	mutex_lock(&cfg80211_mutex);
 	mutex_lock(&reg_mutex);
@@ -1840,6 +1906,11 @@ static void restore_regulatory_settings(bool reset_user)
 	world_alpha2[0] = cfg80211_regdomain->alpha2[0];
 	world_alpha2[1] = cfg80211_regdomain->alpha2[1];
 
+	list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
+		if (rdev->wiphy.flags & WIPHY_FLAG_CUSTOM_REGULATORY)
+			restore_custom_reg_settings(&rdev->wiphy);
+	}
+
 	mutex_unlock(&reg_mutex);
 	mutex_unlock(&cfg80211_mutex);
 
@@ -1940,7 +2011,7 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd)
 	const struct ieee80211_freq_range *freq_range = NULL;
 	const struct ieee80211_power_rule *power_rule = NULL;
 
-	pr_info("    (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)\n");
+	pr_info("  (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)\n");
 
 	for (i = 0; i < rd->n_reg_rules; i++) {
 		reg_rule = &rd->reg_rules[i];
@@ -1952,14 +2023,14 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd)
 		 * in certain regions
 		 */
 		if (power_rule->max_antenna_gain)
-			pr_info("    (%d KHz - %d KHz @ %d KHz), (%d mBi, %d mBm)\n",
+			pr_info("  (%d KHz - %d KHz @ %d KHz), (%d mBi, %d mBm)\n",
 				freq_range->start_freq_khz,
 				freq_range->end_freq_khz,
 				freq_range->max_bandwidth_khz,
 				power_rule->max_antenna_gain,
 				power_rule->max_eirp);
 		else
-			pr_info("    (%d KHz - %d KHz @ %d KHz), (N/A, %d mBm)\n",
+			pr_info("  (%d KHz - %d KHz @ %d KHz), (N/A, %d mBm)\n",
 				freq_range->start_freq_khz,
 				freq_range->end_freq_khz,
 				freq_range->max_bandwidth_khz,
@@ -1982,6 +2053,27 @@ bool reg_supported_dfs_region(u8 dfs_region)
 	}
 }
 
+static void print_dfs_region(u8 dfs_region)
+{
+	if (!dfs_region)
+		return;
+
+	switch (dfs_region) {
+	case NL80211_DFS_FCC:
+		pr_info(" DFS Master region FCC");
+		break;
+	case NL80211_DFS_ETSI:
+		pr_info(" DFS Master region ETSI");
+		break;
+	case NL80211_DFS_JP:
+		pr_info(" DFS Master region JP");
+		break;
+	default:
+		pr_info(" DFS Master region Uknown");
+		break;
+	}
+}
+
 static void print_regdomain(const struct ieee80211_regdomain *rd)
 {
 
@@ -2009,6 +2101,7 @@ static void print_regdomain(const struct ieee80211_regdomain *rd)
 			pr_info("Regulatory domain changed to country: %c%c\n",
 				rd->alpha2[0], rd->alpha2[1]);
 	}
+	print_dfs_region(rd->dfs_region);
 	print_rd_rules(rd);
 }
 
@@ -2239,7 +2332,7 @@ out:
 static void reg_timeout_work(struct work_struct *work)
 {
 	REG_DBG_PRINT("Timeout while waiting for CRDA to reply, "
-		      "restoring regulatory settings");
+		      "restoring regulatory settings\n");
 	restore_regulatory_settings(true);
 }
 
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 16fc437..70faadf 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -12,12 +12,13 @@
 #include <linux/etherdevice.h>
 #include <net/arp.h>
 #include <net/cfg80211.h>
+#include <net/cfg80211-wext.h>
 #include <net/iw_handler.h>
 #include "core.h"
 #include "nl80211.h"
 #include "wext-compat.h"
 
-#define IEEE80211_SCAN_RESULT_EXPIRE	(3 * HZ)
+#define IEEE80211_SCAN_RESULT_EXPIRE	(15 * HZ)
 
 void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak)
 {
@@ -132,18 +133,17 @@ EXPORT_SYMBOL(cfg80211_sched_scan_stopped);
 int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
 			       bool driver_initiated)
 {
-	int err;
 	struct net_device *dev;
 
 	lockdep_assert_held(&rdev->sched_scan_mtx);
 
 	if (!rdev->sched_scan_req)
-		return 0;
+		return -ENOENT;
 
 	dev = rdev->sched_scan_req->dev;
 
 	if (!driver_initiated) {
-		err = rdev->ops->sched_scan_stop(&rdev->wiphy, dev);
+		int err = rdev->ops->sched_scan_stop(&rdev->wiphy, dev);
 		if (err)
 			return err;
 	}
@@ -153,7 +153,7 @@ int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
 	kfree(rdev->sched_scan_req);
 	rdev->sched_scan_req = NULL;
 
-	return err;
+	return 0;
 }
 
 static void bss_release(struct kref *ref)
@@ -228,21 +228,51 @@ const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len)
 }
 EXPORT_SYMBOL(cfg80211_find_ie);
 
+const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
+				  const u8 *ies, int len)
+{
+	struct ieee80211_vendor_ie *ie;
+	const u8 *pos = ies, *end = ies + len;
+	int ie_oui;
+
+	while (pos < end) {
+		pos = cfg80211_find_ie(WLAN_EID_VENDOR_SPECIFIC, pos,
+				       end - pos);
+		if (!pos)
+			return NULL;
+
+		if (end - pos < sizeof(*ie))
+			return NULL;
+
+		ie = (struct ieee80211_vendor_ie *)pos;
+		ie_oui = ie->oui[0] << 16 | ie->oui[1] << 8 | ie->oui[2];
+		if (ie_oui == oui && ie->oui_type == oui_type)
+			return pos;
+
+		pos += 2 + ie->len;
+	}
+	return NULL;
+}
+EXPORT_SYMBOL(cfg80211_find_vendor_ie);
+
 static int cmp_ies(u8 num, u8 *ies1, size_t len1, u8 *ies2, size_t len2)
 {
 	const u8 *ie1 = cfg80211_find_ie(num, ies1, len1);
 	const u8 *ie2 = cfg80211_find_ie(num, ies2, len2);
-	int r;
 
+	/* equal if both missing */
 	if (!ie1 && !ie2)
 		return 0;
-	if (!ie1 || !ie2)
+	/* sort missing IE before (left of) present IE */
+	if (!ie1)
 		return -1;
+	if (!ie2)
+		return 1;
 
-	r = memcmp(ie1 + 2, ie2 + 2, min(ie1[1], ie2[1]));
-	if (r == 0 && ie1[1] != ie2[1])
+	/* sort by length first, then by contents */
+	if (ie1[1] != ie2[1])
 		return ie2[1] - ie1[1];
-	return r;
+	return memcmp(ie1 + 2, ie2 + 2, ie1[1]);
 }
 
 static bool is_bss(struct cfg80211_bss *a,
@@ -325,8 +355,8 @@ static bool is_mesh(struct cfg80211_bss *a,
 	    sizeof(struct ieee80211_meshconf_ie) - 2) == 0;
 }
 
-static int cmp_bss(struct cfg80211_bss *a,
-		   struct cfg80211_bss *b)
+static int cmp_bss_core(struct cfg80211_bss *a,
+			struct cfg80211_bss *b)
 {
 	int r;
 
@@ -348,7 +378,15 @@ static int cmp_bss(struct cfg80211_bss *a,
 			       b->len_information_elements);
 	}
 
-	r = memcmp(a->bssid, b->bssid, ETH_ALEN);
+	return memcmp(a->bssid, b->bssid, ETH_ALEN);
+}
+
+static int cmp_bss(struct cfg80211_bss *a,
+		   struct cfg80211_bss *b)
+{
+	int r;
+
+	r = cmp_bss_core(a, b);
 	if (r)
 		return r;
 
@@ -359,6 +397,52 @@ static int cmp_bss(struct cfg80211_bss *a,
 		       b->len_information_elements);
 }
 
+static int cmp_hidden_bss(struct cfg80211_bss *a,
+		   struct cfg80211_bss *b)
+{
+	const u8 *ie1;
+	const u8 *ie2;
+	int i;
+	int r;
+
+	r = cmp_bss_core(a, b);
+	if (r)
+		return r;
+
+	ie1 = cfg80211_find_ie(WLAN_EID_SSID,
+			a->information_elements,
+			a->len_information_elements);
+	ie2 = cfg80211_find_ie(WLAN_EID_SSID,
+			b->information_elements,
+			b->len_information_elements);
+
+	/* Key comparator must use same algorithm in any rb-tree
+	 * search function (order is important), otherwise ordering
+	 * of items in the tree is broken and search gives incorrect
+	 * results. This code uses same order as cmp_ies() does. */
+
+	/* sort missing IE before (left of) present IE */
+	if (!ie1)
+		return -1;
+	if (!ie2)
+		return 1;
+
+	/* zero-size SSID is used as an indication of the hidden bss */
+	if (!ie2[1])
+		return 0;
+
+	/* sort by length first, then by contents */
+	if (ie1[1] != ie2[1])
+		return ie2[1] - ie1[1];
+
+	/* zeroed SSID ie is another indication of a hidden bss */
+	for (i = 0; i < ie2[1]; i++)
+		if (ie2[i + 2])
+			return -1;
+
+	return 0;
+}
+
 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
 				      struct ieee80211_channel *channel,
 				      const u8 *bssid,
@@ -369,9 +453,6 @@ struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
 	struct cfg80211_internal_bss *bss, *res = NULL;
 	unsigned long now = jiffies;
 
-	if ((bssid == NULL) || (ssid == NULL))
-		return NULL;
-
 	spin_lock_bh(&dev->bss_lock);
 
 	list_for_each_entry(bss, &dev->bss_list, list) {
@@ -478,6 +559,48 @@ rb_find_bss(struct cfg80211_registered_device *dev,
 }
 
 static struct cfg80211_internal_bss *
+rb_find_hidden_bss(struct cfg80211_registered_device *dev,
+	    struct cfg80211_internal_bss *res)
+{
+	struct rb_node *n = dev->bss_tree.rb_node;
+	struct cfg80211_internal_bss *bss;
+	int r;
+
+	while (n) {
+		bss = rb_entry(n, struct cfg80211_internal_bss, rbn);
+		r = cmp_hidden_bss(&res->pub, &bss->pub);
+
+		if (r == 0)
+			return bss;
+		else if (r < 0)
+			n = n->rb_left;
+		else
+			n = n->rb_right;
+	}
+
+	return NULL;
+}
+
+static void
+copy_hidden_ies(struct cfg80211_internal_bss *res,
+		 struct cfg80211_internal_bss *hidden)
+{
+	if (unlikely(res->pub.beacon_ies))
+		return;
+	if (WARN_ON(!hidden->pub.beacon_ies))
+		return;
+
+	res->pub.beacon_ies = kmalloc(hidden->pub.len_beacon_ies, GFP_ATOMIC);
+	if (unlikely(!res->pub.beacon_ies))
+		return;
+
+	res->beacon_ies_allocated = true;
+	res->pub.len_beacon_ies = hidden->pub.len_beacon_ies;
+	memcpy(res->pub.beacon_ies, hidden->pub.beacon_ies,
+			res->pub.len_beacon_ies);
+}
+
+static struct cfg80211_internal_bss *
 cfg80211_bss_update(struct cfg80211_registered_device *dev,
 		    struct cfg80211_internal_bss *res)
 {
@@ -580,6 +703,21 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
 
 		kref_put(&res->ref, bss_release);
 	} else {
+		struct cfg80211_internal_bss *hidden;
+
+		/* First check if the beacon is a probe response from
+		 * a hidden bss. If so, copy beacon ies (with nullified
+		 * ssid) into the probe response bss entry (with real ssid).
+		 * It is required basically for PSM implementation
+		 * (probe responses do not contain tim ie) */
+
+		/* TODO: The code is not trying to update existing probe
+		 * response bss entries when beacon ies are
+		 * getting changed. */
+		hidden = rb_find_hidden_bss(dev, res);
+		if (hidden)
+			copy_hidden_ies(res, hidden);
+
 		/* this "consumes" the reference */
 		list_add_tail(&res->list, &dev->bss_list);
 		rb_insert_bss(dev, res);
@@ -596,9 +734,8 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
 struct cfg80211_bss*
 cfg80211_inform_bss(struct wiphy *wiphy,
 		    struct ieee80211_channel *channel,
-		    const u8 *bssid,
-		    u64 timestamp, u16 capability, u16 beacon_interval,
-		    const u8 *ie, size_t ielen,
+		    const u8 *bssid, u64 tsf, u16 capability,
+		    u16 beacon_interval, const u8 *ie, size_t ielen,
 		    s32 signal, gfp_t gfp)
 {
 	struct cfg80211_internal_bss *res;
@@ -620,7 +757,7 @@ cfg80211_inform_bss(struct wiphy *wiphy,
 	memcpy(res->pub.bssid, bssid, ETH_ALEN);
 	res->pub.channel = channel;
 	res->pub.signal = signal;
-	res->pub.tsf = timestamp;
+	res->pub.tsf = tsf;
 	res->pub.beacon_interval = beacon_interval;
 	res->pub.capability = capability;
 	/*
@@ -723,6 +860,18 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 }
 EXPORT_SYMBOL(cfg80211_inform_bss_frame);
 
+void cfg80211_ref_bss(struct cfg80211_bss *pub)
+{
+	struct cfg80211_internal_bss *bss;
+
+	if (!pub)
+		return;
+
+	bss = container_of(pub, struct cfg80211_internal_bss, pub);
+	kref_get(&bss->ref);
+}
+EXPORT_SYMBOL(cfg80211_ref_bss);
+
 void cfg80211_put_bss(struct cfg80211_bss *pub)
 {
 	struct cfg80211_internal_bss *bss;
@@ -866,6 +1015,10 @@ int cfg80211_wext_siwscan(struct net_device *dev,
 			creq->n_ssids = 0;
 	}
 
+	for (i = 0; i < IEEE80211_NUM_BANDS; i++)
+		if (wiphy->bands[i])
+			creq->rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
+
 	rdev->scan_req = creq;
 	err = rdev->ops->scan(wiphy, dev, creq);
 	if (err) {
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index bbbed73..3fd50a1 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -222,6 +222,9 @@ void cfg80211_conn_work(struct work_struct *work)
 	mutex_lock(&rdev->devlist_mtx);
 
 	list_for_each_entry(wdev, &rdev->netdev_list, list) {
+		if (!wdev->netdev)
+			continue;
+
 		wdev_lock(wdev);
 		if (!netif_running(wdev->netdev)) {
 			wdev_unlock(wdev);
@@ -689,10 +692,8 @@ void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
 		    wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
 		return;
 
-#ifndef CONFIG_CFG80211_ALLOW_RECONNECT
 	if (wdev->sme_state != CFG80211_SME_CONNECTED)
 		return;
-#endif
 
 	if (wdev->current_bss) {
 		cfg80211_unhold_bss(wdev->current_bss);
@@ -769,14 +770,10 @@ int __cfg80211_connect(struct cfg80211_registered_device *rdev,
 
 	ASSERT_WDEV_LOCK(wdev);
 
-#ifndef CONFIG_CFG80211_ALLOW_RECONNECT
 	if (wdev->sme_state != CFG80211_SME_IDLE)
 		return -EALREADY;
 
 	if (WARN_ON(wdev->connect_keys)) {
-#else
-	if (wdev->connect_keys) {
-#endif
 		kfree(wdev->connect_keys);
 		wdev->connect_keys = NULL;
 	}
diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index c6e4ca6..ff57459 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -93,7 +93,8 @@ static int wiphy_suspend(struct device *dev, pm_message_t state)
 
 	if (rdev->ops->suspend) {
 		rtnl_lock();
-		ret = rdev->ops->suspend(&rdev->wiphy, rdev->wowlan);
+		if (rdev->wiphy.registered)
+			ret = rdev->ops->suspend(&rdev->wiphy, rdev->wowlan);
 		rtnl_unlock();
 	}
 
@@ -112,7 +113,8 @@ static int wiphy_resume(struct device *dev)
 
 	if (rdev->ops->resume) {
 		rtnl_lock();
-		ret = rdev->ops->resume(&rdev->wiphy);
+		if (rdev->wiphy.registered)
+			ret = rdev->ops->resume(&rdev->wiphy);
 		rtnl_unlock();
 	}
 
diff --git a/net/wireless/util.c b/net/wireless/util.c
index ebc7d09..d22dce7 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -3,11 +3,13 @@
  *
  * Copyright 2007-2009	Johannes Berg <johannes@sipsolutions.net>
  */
+#include <linux/export.h>
 #include <linux/bitops.h>
 #include <linux/etherdevice.h>
 #include <linux/slab.h>
 #include <net/cfg80211.h>
 #include <net/ip.h>
+#include <net/dsfield.h>
 #include "core.h"
 
 struct ieee80211_rate *
@@ -206,10 +208,6 @@ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
 		if (params->key_len != WLAN_KEY_LEN_AES_CMAC)
 			return -EINVAL;
 		break;
-	case WLAN_CIPHER_SUITE_SMS4:
-		if (params->key_len != WLAN_KEY_LEN_WAPI_SMS4)
-			return -EINVAL;
-		break;
 	default:
 		/*
 		 * We don't know anything about this algorithm,
@@ -242,17 +240,6 @@ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
 	return 0;
 }
 
-/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
-/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
-const unsigned char rfc1042_header[] __aligned(2) =
-	{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
-EXPORT_SYMBOL(rfc1042_header);
-
-/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
-const unsigned char bridge_tunnel_header[] __aligned(2) =
-	{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
-EXPORT_SYMBOL(bridge_tunnel_header);
-
 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc)
 {
 	unsigned int hdrlen = 24;
@@ -303,7 +290,7 @@ unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
 }
 EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
 
-static int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
+unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
 {
 	int ae = meshhdr->flags & MESH_FLAGS_AE;
 	/* 802.11-2012, 8.2.4.7.3 */
@@ -317,6 +304,7 @@ static int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
 		return 18;
 	}
 }
+EXPORT_SYMBOL(ieee80211_get_mesh_hdrlen);
 
 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
 			   enum nl80211_iftype iftype)
@@ -400,8 +388,9 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
 		}
 		break;
 	case cpu_to_le16(0):
-		if (iftype != NL80211_IFTYPE_ADHOC)
-			return -1;
+		if (iftype != NL80211_IFTYPE_ADHOC &&
+		    iftype != NL80211_IFTYPE_STATION)
+				return -1;
 		break;
 	}
 
@@ -521,10 +510,9 @@ int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
 		if (head_need)
 			skb_orphan(skb);
 
-		if (pskb_expand_head(skb, head_need, 0, GFP_ATOMIC)) {
-			pr_err("failed to reallocate Tx buffer\n");
+		if (pskb_expand_head(skb, head_need, 0, GFP_ATOMIC))
 			return -ENOMEM;
-		}
+
 		skb->truesize += head_need;
 	}
 
@@ -665,7 +653,10 @@ unsigned int cfg80211_classify8021d(struct sk_buff *skb)
 
 	switch (skb->protocol) {
 	case htons(ETH_P_IP):
-		dscp = ip_hdr(skb)->tos & 0xfc;
+		dscp = ipv4_get_dsfield(ip_hdr(skb)) & 0xfc;
+		break;
+	case htons(ETH_P_IPV6):
+		dscp = ipv6_get_dsfield(ipv6_hdr(skb)) & 0xfc;
 		break;
 	default:
 		return 0;
@@ -915,6 +906,7 @@ u16 cfg80211_calculate_bitrate(struct rate_info *rate)
 	/* do NOT round down here */
 	return (bitrate + 50000) / 100000;
 }
+EXPORT_SYMBOL(cfg80211_calculate_bitrate);
 
 int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
 				 u32 beacon_int)
@@ -1064,6 +1056,7 @@ int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
 		if (!found)
 			return -EINVAL;
 	}
+
 	/*
 	 * mask must have at least one bit set here since we
 	 * didn't accept a 0-length rates array nor allowed
@@ -1072,3 +1065,14 @@ int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
 
 	return 0;
 }
+
+/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
+/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
+const unsigned char rfc1042_header[] __aligned(2) =
+	{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+EXPORT_SYMBOL(rfc1042_header);
+
+/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
+const unsigned char bridge_tunnel_header[] __aligned(2) =
+	{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
+EXPORT_SYMBOL(bridge_tunnel_header);
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 355a63a..3c24eb9 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -8,6 +8,7 @@
  * Copyright 2008-2009	Johannes Berg <johannes@sipsolutions.net>
  */
 
+#include <linux/export.h>
 #include <linux/wireless.h>
 #include <linux/nl80211.h>
 #include <linux/if_arp.h>
@@ -364,9 +365,9 @@ int cfg80211_wext_giwfrag(struct net_device *dev,
 }
 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
 
-int cfg80211_wext_siwretry(struct net_device *dev,
-			   struct iw_request_info *info,
-			   struct iw_param *retry, char *extra)
+static int cfg80211_wext_siwretry(struct net_device *dev,
+				  struct iw_request_info *info,
+				  struct iw_param *retry, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -403,7 +404,6 @@ int cfg80211_wext_siwretry(struct net_device *dev,
 
 	return err;
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
 
 int cfg80211_wext_giwretry(struct net_device *dev,
 			   struct iw_request_info *info,
@@ -594,9 +594,9 @@ static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 	return err;
 }
 
-int cfg80211_wext_siwencode(struct net_device *dev,
-			    struct iw_request_info *info,
-			    struct iw_point *erq, char *keybuf)
+static int cfg80211_wext_siwencode(struct net_device *dev,
+				   struct iw_request_info *info,
+				   struct iw_point *erq, char *keybuf)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -653,11 +653,10 @@ int cfg80211_wext_siwencode(struct net_device *dev,
 				       wdev->wext.default_key == -1,
 				       idx, &params);
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
 
-int cfg80211_wext_siwencodeext(struct net_device *dev,
-			       struct iw_request_info *info,
-			       struct iw_point *erq, char *extra)
+static int cfg80211_wext_siwencodeext(struct net_device *dev,
+				      struct iw_request_info *info,
+				      struct iw_point *erq, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -745,11 +744,10 @@ int cfg80211_wext_siwencodeext(struct net_device *dev,
 			ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
 			idx, &params);
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
 
-int cfg80211_wext_giwencode(struct net_device *dev,
-			    struct iw_request_info *info,
-			    struct iw_point *erq, char *keybuf)
+static int cfg80211_wext_giwencode(struct net_device *dev,
+				   struct iw_request_info *info,
+				   struct iw_point *erq, char *keybuf)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	int idx;
@@ -783,11 +781,10 @@ int cfg80211_wext_giwencode(struct net_device *dev,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
 
-int cfg80211_wext_siwfreq(struct net_device *dev,
-			  struct iw_request_info *info,
-			  struct iw_freq *wextfreq, char *extra)
+static int cfg80211_wext_siwfreq(struct net_device *dev,
+				 struct iw_request_info *info,
+				 struct iw_freq *wextfreq, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -816,19 +813,30 @@ int cfg80211_wext_siwfreq(struct net_device *dev,
 		return -EOPNOTSUPP;
 	}
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
 
-int cfg80211_wext_giwfreq(struct net_device *dev,
-			  struct iw_request_info *info,
-			  struct iw_freq *freq, char *extra)
+static int cfg80211_wext_giwfreq(struct net_device *dev,
+				 struct iw_request_info *info,
+				 struct iw_freq *freq, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	struct ieee80211_channel *chan;
 
 	switch (wdev->iftype) {
 	case NL80211_IFTYPE_STATION:
 		return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
 	case NL80211_IFTYPE_ADHOC:
 		return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
+	case NL80211_IFTYPE_MONITOR:
+		if (!rdev->ops->get_channel)
+			return -EINVAL;
+
+		chan = rdev->ops->get_channel(wdev->wiphy);
+		if (!chan)
+			return -EINVAL;
+		freq->m = chan->center_freq;
+		freq->e = 6;
+		return 0;
 	default:
 		if (!wdev->channel)
 			return -EINVAL;
@@ -837,11 +845,10 @@ int cfg80211_wext_giwfreq(struct net_device *dev,
 		return 0;
 	}
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq);
 
-int cfg80211_wext_siwtxpower(struct net_device *dev,
-			     struct iw_request_info *info,
-			     union iwreq_data *data, char *extra)
+static int cfg80211_wext_siwtxpower(struct net_device *dev,
+				    struct iw_request_info *info,
+				    union iwreq_data *data, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -890,11 +897,10 @@ int cfg80211_wext_siwtxpower(struct net_device *dev,
 
 	return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm));
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
 
-int cfg80211_wext_giwtxpower(struct net_device *dev,
-			     struct iw_request_info *info,
-			     union iwreq_data *data, char *extra)
+static int cfg80211_wext_giwtxpower(struct net_device *dev,
+				    struct iw_request_info *info,
+				    union iwreq_data *data, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -920,7 +926,6 @@ int cfg80211_wext_giwtxpower(struct net_device *dev,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
 
 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 				 s32 auth_alg)
@@ -1071,9 +1076,9 @@ static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
 	return 0;
 }
 
-int cfg80211_wext_siwauth(struct net_device *dev,
-			  struct iw_request_info *info,
-			  struct iw_param *data, char *extra)
+static int cfg80211_wext_siwauth(struct net_device *dev,
+				 struct iw_request_info *info,
+				 struct iw_param *data, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
@@ -1103,21 +1108,19 @@ int cfg80211_wext_siwauth(struct net_device *dev,
 		return -EOPNOTSUPP;
 	}
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
 
-int cfg80211_wext_giwauth(struct net_device *dev,
-			  struct iw_request_info *info,
-			  struct iw_param *data, char *extra)
+static int cfg80211_wext_giwauth(struct net_device *dev,
+				 struct iw_request_info *info,
+				 struct iw_param *data, char *extra)
 {
 	/* XXX: what do we need? */
 
 	return -EOPNOTSUPP;
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
 
-int cfg80211_wext_siwpower(struct net_device *dev,
-			   struct iw_request_info *info,
-			   struct iw_param *wrq, char *extra)
+static int cfg80211_wext_siwpower(struct net_device *dev,
+				  struct iw_request_info *info,
+				  struct iw_param *wrq, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -1161,11 +1164,10 @@ int cfg80211_wext_siwpower(struct net_device *dev,
 	return 0;
 
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower);
 
-int cfg80211_wext_giwpower(struct net_device *dev,
-			   struct iw_request_info *info,
-			   struct iw_param *wrq, char *extra)
+static int cfg80211_wext_giwpower(struct net_device *dev,
+				  struct iw_request_info *info,
+				  struct iw_param *wrq, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
@@ -1173,7 +1175,6 @@ int cfg80211_wext_giwpower(struct net_device *dev,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower);
 
 static int cfg80211_wds_wext_siwap(struct net_device *dev,
 				   struct iw_request_info *info,
@@ -1219,9 +1220,9 @@ static int cfg80211_wds_wext_giwap(struct net_device *dev,
 	return 0;
 }
 
-int cfg80211_wext_siwrate(struct net_device *dev,
-			  struct iw_request_info *info,
-			  struct iw_param *rate, char *extra)
+static int cfg80211_wext_siwrate(struct net_device *dev,
+				 struct iw_request_info *info,
+				 struct iw_param *rate, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -1269,11 +1270,10 @@ int cfg80211_wext_siwrate(struct net_device *dev,
 
 	return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
 
-int cfg80211_wext_giwrate(struct net_device *dev,
-			  struct iw_request_info *info,
-			  struct iw_param *rate, char *extra)
+static int cfg80211_wext_giwrate(struct net_device *dev,
+				 struct iw_request_info *info,
+				 struct iw_param *rate, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -1309,10 +1309,9 @@ int cfg80211_wext_giwrate(struct net_device *dev,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
 
 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
-struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
+static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -1377,11 +1376,10 @@ struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
 
 	return &wstats;
 }
-EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);
 
-int cfg80211_wext_siwap(struct net_device *dev,
-			struct iw_request_info *info,
-			struct sockaddr *ap_addr, char *extra)
+static int cfg80211_wext_siwap(struct net_device *dev,
+			       struct iw_request_info *info,
+			       struct sockaddr *ap_addr, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
@@ -1396,11 +1394,10 @@ int cfg80211_wext_siwap(struct net_device *dev,
 		return -EOPNOTSUPP;
 	}
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwap);
 
-int cfg80211_wext_giwap(struct net_device *dev,
-			struct iw_request_info *info,
-			struct sockaddr *ap_addr, char *extra)
+static int cfg80211_wext_giwap(struct net_device *dev,
+			       struct iw_request_info *info,
+			       struct sockaddr *ap_addr, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
@@ -1415,11 +1412,10 @@ int cfg80211_wext_giwap(struct net_device *dev,
 		return -EOPNOTSUPP;
 	}
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_giwap);
 
-int cfg80211_wext_siwessid(struct net_device *dev,
-			   struct iw_request_info *info,
-			   struct iw_point *data, char *ssid)
+static int cfg80211_wext_siwessid(struct net_device *dev,
+				  struct iw_request_info *info,
+				  struct iw_point *data, char *ssid)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
@@ -1432,11 +1428,10 @@ int cfg80211_wext_siwessid(struct net_device *dev,
 		return -EOPNOTSUPP;
 	}
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid);
 
-int cfg80211_wext_giwessid(struct net_device *dev,
-			   struct iw_request_info *info,
-			   struct iw_point *data, char *ssid)
+static int cfg80211_wext_giwessid(struct net_device *dev,
+				  struct iw_request_info *info,
+				  struct iw_point *data, char *ssid)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
@@ -1452,11 +1447,10 @@ int cfg80211_wext_giwessid(struct net_device *dev,
 		return -EOPNOTSUPP;
 	}
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid);
 
-int cfg80211_wext_siwpmksa(struct net_device *dev,
-			   struct iw_request_info *info,
-			   struct iw_point *data, char *extra)
+static int cfg80211_wext_siwpmksa(struct net_device *dev,
+				  struct iw_request_info *info,
+				  struct iw_point *data, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -1494,7 +1488,6 @@ int cfg80211_wext_siwpmksa(struct net_device *dev,
 		return -EOPNOTSUPP;
 	}
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwpmksa);
 
 static const iw_handler cfg80211_handlers[] = {
 	[IW_IOCTL_IDX(SIOCGIWNAME)]	= (iw_handler) cfg80211_wext_giwname,
diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
index fdbc23c..af648e0 100644
--- a/net/wireless/wext-core.c
+++ b/net/wireless/wext-core.c
@@ -13,6 +13,7 @@
 #include <linux/slab.h>
 #include <linux/wireless.h>
 #include <linux/uaccess.h>
+#include <linux/export.h>
 #include <net/cfg80211.h>
 #include <net/iw_handler.h>
 #include <net/netlink.h>
@@ -779,8 +780,10 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
 		if (cmd == SIOCSIWENCODEEXT) {
 			struct iw_encode_ext *ee = (void *) extra;
 
-			if (iwp->length < sizeof(*ee) + ee->key_len)
-				return -EFAULT;
+			if (iwp->length < sizeof(*ee) + ee->key_len) {
+				err = -EFAULT;
+				goto out;
+			}
 		}
 	}
 
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index 6fffe62..7c01c2f 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -5,10 +5,12 @@
  * Copyright (C) 2009   Intel Corporation. All rights reserved.
  */
 
+#include <linux/export.h>
 #include <linux/etherdevice.h>
 #include <linux/if_arp.h>
 #include <linux/slab.h>
 #include <net/cfg80211.h>
+#include <net/cfg80211-wext.h>
 #include "wext-compat.h"
 #include "nl80211.h"
 
@@ -28,6 +30,9 @@ int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
 	wdev->wext.connect.ie = wdev->wext.ie;
 	wdev->wext.connect.ie_len = wdev->wext.ie_len;
 
+	/* Use default background scan period */
+	wdev->wext.connect.bg_scan_period = -1;
+
 	if (wdev->wext.keys) {
 		wdev->wext.keys->def = wdev->wext.default_key;
 		wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key;
@@ -365,7 +370,6 @@ int cfg80211_wext_siwgenie(struct net_device *dev,
 	wdev_unlock(wdev);
 	return err;
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwgenie);
 
 int cfg80211_wext_siwmlme(struct net_device *dev,
 			  struct iw_request_info *info,
@@ -402,4 +406,3 @@ int cfg80211_wext_siwmlme(struct net_device *dev,
 
 	return err;
 }
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);
diff --git a/net/wireless/wext-spy.c b/net/wireless/wext-spy.c
index 6dcfe65..5d643a5 100644
--- a/net/wireless/wext-spy.c
+++ b/net/wireless/wext-spy.c
@@ -10,6 +10,7 @@
 #include <linux/wireless.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
+#include <linux/export.h>
 #include <net/iw_handler.h>
 #include <net/arp.h>
 #include <net/wext.h>