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

Conflicts:
	drivers/net/wireless/iwlwifi/iwl-commands.h

8 files changed, 77 insertions, 59 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 5e56e91..a3f3325 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1154,10 +1154,6 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
 		return -EINVAL;
 	}
 
-	/* enable WMM or activate new settings */
-	local->hw.conf.flags |= IEEE80211_CONF_QOS;
-	drv_config(local, IEEE80211_CONF_CHANGE_QOS);
-
 	return 0;
 }
 
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index be928ef..9d101fb 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -29,7 +29,7 @@ void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
 
 	memset(ht_cap, 0, sizeof(*ht_cap));
 
-	if (!ht_cap_ie)
+	if (!ht_cap_ie || !sband->ht_cap.ht_supported)
 		return;
 
 	ht_cap->ht_supported = true;
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index d4e84b2..c691780 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -43,6 +43,8 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
 {
 	u16 auth_alg, auth_transaction, status_code;
 
+	lockdep_assert_held(&sdata->u.ibss.mtx);
+
 	if (len < 24 + 6)
 		return;
 
@@ -78,6 +80,8 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	u32 bss_change;
 	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
 
+	lockdep_assert_held(&ifibss->mtx);
+
 	/* Reset own TSF to allow time synchronization work. */
 	drv_reset_tsf(local);
 
@@ -205,6 +209,8 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	int i, j;
 	u16 beacon_int = cbss->beacon_interval;
 
+	lockdep_assert_held(&sdata->u.ibss.mtx);
+
 	if (beacon_int < 10)
 		beacon_int = 10;
 
@@ -449,6 +455,8 @@ static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
 	int active = 0;
 	struct sta_info *sta;
 
+	lockdep_assert_held(&sdata->u.ibss.mtx);
+
 	rcu_read_lock();
 
 	list_for_each_entry_rcu(sta, &local->sta_list, list) {
@@ -473,6 +481,8 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 
+	lockdep_assert_held(&ifibss->mtx);
+
 	mod_timer(&ifibss->timer,
 		  round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
 
@@ -505,6 +515,8 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 	u16 capability;
 	int i;
 
+	lockdep_assert_held(&ifibss->mtx);
+
 	if (ifibss->fixed_bssid) {
 		memcpy(bssid, ifibss->bssid, ETH_ALEN);
 	} else {
@@ -549,6 +561,8 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 	int active_ibss;
 	u16 capability;
 
+	lockdep_assert_held(&ifibss->mtx);
+
 	active_ibss = ieee80211_sta_active_ibss(sdata);
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 	printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
@@ -637,6 +651,8 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_mgmt *resp;
 	u8 *pos, *end;
 
+	lockdep_assert_held(&ifibss->mtx);
+
 	if (ifibss->state != IEEE80211_IBSS_MLME_JOINED ||
 	    len < 24 + 2 || !ifibss->presp)
 		return;
@@ -740,6 +756,8 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 	mgmt = (struct ieee80211_mgmt *) skb->data;
 	fc = le16_to_cpu(mgmt->frame_control);
 
+	mutex_lock(&sdata->u.ibss.mtx);
+
 	switch (fc & IEEE80211_FCTL_STYPE) {
 	case IEEE80211_STYPE_PROBE_REQ:
 		ieee80211_rx_mgmt_probe_req(sdata, mgmt, skb->len);
@@ -756,14 +774,23 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 		ieee80211_rx_mgmt_auth_ibss(sdata, mgmt, skb->len);
 		break;
 	}
+
+	mutex_unlock(&sdata->u.ibss.mtx);
 }
 
 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 
-	if (!test_and_clear_bit(IEEE80211_IBSS_REQ_RUN, &ifibss->request))
-		return;
+	mutex_lock(&ifibss->mtx);
+
+	/*
+	 * Work could be scheduled after scan or similar
+	 * when we aren't even joined (or trying) with a
+	 * network.
+	 */
+	if (!ifibss->ssid_len)
+		goto out;
 
 	switch (ifibss->state) {
 	case IEEE80211_IBSS_MLME_SEARCH:
@@ -776,15 +803,9 @@ void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata)
 		WARN_ON(1);
 		break;
 	}
-}
 
-static void ieee80211_queue_ibss_work(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-	struct ieee80211_local *local = sdata->local;
-
-	set_bit(IEEE80211_IBSS_REQ_RUN, &ifibss->request);
-	ieee80211_queue_work(&local->hw, &sdata->work);
+ out:
+	mutex_unlock(&ifibss->mtx);
 }
 
 static void ieee80211_ibss_timer(unsigned long data)
@@ -799,7 +820,7 @@ static void ieee80211_ibss_timer(unsigned long data)
 		return;
 	}
 
-	ieee80211_queue_ibss_work(sdata);
+	ieee80211_queue_work(&local->hw, &sdata->work);
 }
 
 #ifdef CONFIG_PM
@@ -828,6 +849,7 @@ void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata)
 
 	setup_timer(&ifibss->timer, ieee80211_ibss_timer,
 		    (unsigned long) sdata);
+	mutex_init(&ifibss->mtx);
 }
 
 /* scan finished notification */
@@ -841,10 +863,8 @@ void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local)
 			continue;
 		if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
 			continue;
-		if (!sdata->u.ibss.ssid_len)
-			continue;
 		sdata->u.ibss.last_scan_completed = jiffies;
-		ieee80211_queue_ibss_work(sdata);
+		ieee80211_queue_work(&local->hw, &sdata->work);
 	}
 	mutex_unlock(&local->iflist_mtx);
 }
@@ -854,6 +874,17 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 {
 	struct sk_buff *skb;
 
+	skb = dev_alloc_skb(sdata->local->hw.extra_tx_headroom +
+			    36 /* bitrates */ +
+			    34 /* SSID */ +
+			    3  /* DS params */ +
+			    4  /* IBSS params */ +
+			    params->ie_len);
+	if (!skb)
+		return -ENOMEM;
+
+	mutex_lock(&sdata->u.ibss.mtx);
+
 	if (params->bssid) {
 		memcpy(sdata->u.ibss.bssid, params->bssid, ETH_ALEN);
 		sdata->u.ibss.fixed_bssid = true;
@@ -882,35 +913,19 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 			sdata->u.ibss.ie_len = params->ie_len;
 	}
 
-	skb = dev_alloc_skb(sdata->local->hw.extra_tx_headroom +
-			    36 /* bitrates */ +
-			    34 /* SSID */ +
-			    3  /* DS params */ +
-			    4  /* IBSS params */ +
-			    params->ie_len);
-	if (!skb)
-		return -ENOMEM;
-
 	sdata->u.ibss.skb = skb;
 	sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH;
 	sdata->u.ibss.ibss_join_req = jiffies;
 
 	memcpy(sdata->u.ibss.ssid, params->ssid, IEEE80211_MAX_SSID_LEN);
-
-	/*
-	 * The ssid_len setting below is used to see whether
-	 * we are active, and we need all other settings
-	 * before that may get visible.
-	 */
-	mb();
-
 	sdata->u.ibss.ssid_len = params->ssid_len;
 
 	ieee80211_recalc_idle(sdata->local);
 
-	set_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
 	ieee80211_queue_work(&sdata->local->hw, &sdata->work);
 
+	mutex_unlock(&sdata->u.ibss.mtx);
+
 	return 0;
 }
 
@@ -921,7 +936,9 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_local *local = sdata->local;
 	struct cfg80211_bss *cbss;
 	u16 capability;
-	int active_ibss = 0;
+	int active_ibss;
+
+	mutex_lock(&sdata->u.ibss.mtx);
 
 	active_ibss = ieee80211_sta_active_ibss(sdata);
 
@@ -943,11 +960,6 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 		}
 	}
 
-	del_timer_sync(&sdata->u.ibss.timer);
-	clear_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
-	cancel_work_sync(&sdata->work);
-	clear_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
-
 	sta_info_flush(sdata->local, sdata);
 
 	/* remove beacon */
@@ -964,6 +976,10 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 	memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
 	sdata->u.ibss.ssid_len = 0;
 
+	del_timer_sync(&sdata->u.ibss.timer);
+
+	mutex_unlock(&sdata->u.ibss.mtx);
+
 	ieee80211_recalc_idle(sdata->local);
 
 	return 0;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index a3649a8..ef47006 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -377,14 +377,11 @@ struct ieee80211_if_managed {
 	int last_cqm_event_signal;
 };
 
-enum ieee80211_ibss_request {
-	IEEE80211_IBSS_REQ_RUN	= 0,
-};
-
 struct ieee80211_if_ibss {
 	struct timer_list timer;
 
-	unsigned long request;
+	struct mutex mtx;
+
 	unsigned long last_scan_completed;
 
 	u32 basic_rates;
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 910729f..ebbe264 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -249,6 +249,8 @@ static int ieee80211_open(struct net_device *dev)
 			local->fif_other_bss++;
 
 		ieee80211_configure_filter(local);
+
+		netif_carrier_on(dev);
 		break;
 	default:
 		res = drv_add_interface(local, &sdata->vif);
@@ -741,7 +743,7 @@ static void ieee80211_iface_work(struct work_struct *work)
 			int len = skb->len;
 
 			mutex_lock(&local->sta_mtx);
-			sta = sta_info_get(sdata, mgmt->sa);
+			sta = sta_info_get_bss(sdata, mgmt->sa);
 			if (sta) {
 				switch (mgmt->u.action.u.addba_req.action_code) {
 				case WLAN_ACTION_ADDBA_REQ:
@@ -782,7 +784,7 @@ static void ieee80211_iface_work(struct work_struct *work)
 			 * right, so terminate the session.
 			 */
 			mutex_lock(&local->sta_mtx);
-			sta = sta_info_get(sdata, mgmt->sa);
+			sta = sta_info_get_bss(sdata, mgmt->sa);
 			if (sta) {
 				u16 tid = *ieee80211_get_qos_ctl(hdr) &
 						IEEE80211_QOS_CTL_TID_MASK;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index d196265..cf8d721 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -698,10 +698,11 @@ void ieee80211_dynamic_ps_timer(unsigned long data)
 
 /* MLME */
 static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
-				     struct ieee80211_if_managed *ifmgd,
+				     struct ieee80211_sub_if_data *sdata,
 				     u8 *wmm_param, size_t wmm_param_len)
 {
 	struct ieee80211_tx_queue_params params;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	size_t left;
 	int count;
 	u8 *pos, uapsd_queues = 0;
@@ -790,8 +791,8 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 	}
 
 	/* enable WMM or activate new settings */
-	local->hw.conf.flags |=	IEEE80211_CONF_QOS;
-	drv_config(local, IEEE80211_CONF_CHANGE_QOS);
+	sdata->vif.bss_conf.qos = true;
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
 }
 
 static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
@@ -1325,7 +1326,7 @@ static bool ieee80211_assoc_success(struct ieee80211_work *wk,
 	}
 
 	if (elems.wmm_param)
-		ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
+		ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
 					 elems.wmm_param_len);
 	else
 		ieee80211_set_wmm_default(sdata);
@@ -1597,7 +1598,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 		ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems,
 				      true);
 
-		ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
+		ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
 					 elems.wmm_param_len);
 	}
 
@@ -2030,6 +2031,8 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 		auth_alg = WLAN_AUTH_OPEN;
 		break;
 	case NL80211_AUTHTYPE_SHARED_KEY:
+		if (IS_ERR(sdata->local->wep_tx_tfm))
+			return -EOPNOTSUPP;
 		auth_alg = WLAN_AUTH_SHARED_KEY;
 		break;
 	case NL80211_AUTHTYPE_FT:
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index a54cf14..7947921 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -803,8 +803,8 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
 
 	/* after reinitialize QoS TX queues setting to default,
 	 * disable QoS at all */
-	local->hw.conf.flags &=	~IEEE80211_CONF_QOS;
-	drv_config(local, IEEE80211_CONF_CHANGE_QOS);
+	sdata->vif.bss_conf.qos = sdata->vif.type != NL80211_IFTYPE_STATION;
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
 }
 
 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
@@ -1161,7 +1161,8 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 			  BSS_CHANGED_BASIC_RATES |
 			  BSS_CHANGED_BEACON_INT |
 			  BSS_CHANGED_BSSID |
-			  BSS_CHANGED_CQM;
+			  BSS_CHANGED_CQM |
+			  BSS_CHANGED_QOS;
 
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_STATION:
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index 6d133b6..9ebc8d8 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -32,13 +32,16 @@ int ieee80211_wep_init(struct ieee80211_local *local)
 
 	local->wep_tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0,
 						CRYPTO_ALG_ASYNC);
-	if (IS_ERR(local->wep_tx_tfm))
+	if (IS_ERR(local->wep_tx_tfm)) {
+		local->wep_rx_tfm = ERR_PTR(-EINVAL);
 		return PTR_ERR(local->wep_tx_tfm);
+	}
 
 	local->wep_rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0,
 						CRYPTO_ALG_ASYNC);
 	if (IS_ERR(local->wep_rx_tfm)) {
 		crypto_free_blkcipher(local->wep_tx_tfm);
+		local->wep_tx_tfm = ERR_PTR(-EINVAL);
 		return PTR_ERR(local->wep_rx_tfm);
 	}