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

11 files changed, 71 insertions, 36 deletions

diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 89b0b2ca6db..ebadb9ac9a7 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -262,7 +262,11 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
 				"%pM on tid %u\n",
 				mgmt->sa, tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
-		goto end;
+
+		/* delete existing Rx BA session on the same tid */
+		___ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
+						WLAN_STATUS_UNSPECIFIED_QOS,
+						false);
 	}
 
 	/* prepare A-MPDU MLME for Rx aggregation */
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 6e56c6ee7cc..9fe22cc393c 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -674,8 +674,11 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 
 	if (mask & BIT(NL80211_STA_FLAG_WME)) {
 		sta->flags &= ~WLAN_STA_WME;
-		if (set & BIT(NL80211_STA_FLAG_WME))
+		sta->sta.wme = false;
+		if (set & BIT(NL80211_STA_FLAG_WME)) {
 			sta->flags |= WLAN_STA_WME;
+			sta->sta.wme = true;
+		}
 	}
 
 	if (mask & BIT(NL80211_STA_FLAG_MFP)) {
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 090b0ec1e05..25c15cc6331 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1350,10 +1350,12 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
 					  u8 *dst,
 					  const u8 *ssid, size_t ssid_len,
-					  const u8 *ie, size_t ie_len);
+					  const u8 *ie, size_t ie_len,
+					  bool directed);
 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 			      const u8 *ssid, size_t ssid_len,
-			      const u8 *ie, size_t ie_len);
+			      const u8 *ie, size_t ie_len,
+			      bool directed);
 
 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 				  const size_t supp_rates_len,
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index faca5033f06..b87420088c3 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -760,23 +760,34 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
 	if (local->hw.conf.flags & IEEE80211_CONF_PS)
 		return;
 
-	/*
-	 * transmission can be stopped by others which leads to
-	 * dynamic_ps_timer expiry. Postpond the ps timer if it
-	 * is not the actual idle state.
-	 */
-	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
-	for (q = 0; q < local->hw.queues; q++) {
-		if (local->queue_stop_reasons[q]) {
-			spin_unlock_irqrestore(&local->queue_stop_reason_lock,
-					       flags);
+	if (!local->disable_dynamic_ps &&
+	    local->hw.conf.dynamic_ps_timeout > 0) {
+		/* don't enter PS if TX frames are pending */
+		if (drv_tx_frames_pending(local)) {
 			mod_timer(&local->dynamic_ps_timer, jiffies +
 				  msecs_to_jiffies(
 				  local->hw.conf.dynamic_ps_timeout));
 			return;
 		}
+
+		/*
+		 * transmission can be stopped by others which leads to
+		 * dynamic_ps_timer expiry. Postpone the ps timer if it
+		 * is not the actual idle state.
+		 */
+		spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+		for (q = 0; q < local->hw.queues; q++) {
+			if (local->queue_stop_reasons[q]) {
+				spin_unlock_irqrestore(&local->queue_stop_reason_lock,
+						       flags);
+				mod_timer(&local->dynamic_ps_timer, jiffies +
+					  msecs_to_jiffies(
+					  local->hw.conf.dynamic_ps_timeout));
+				return;
+			}
+		}
+		spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 	}
-	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 
 	if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) &&
 	    (!(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED))) {
@@ -801,7 +812,8 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 	}
 
-	netif_tx_wake_all_queues(sdata->dev);
+	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+		netif_tx_wake_all_queues(sdata->dev);
 }
 
 void ieee80211_dynamic_ps_timer(unsigned long data)
@@ -1204,7 +1216,8 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
 		ieee80211_send_nullfunc(sdata->local, sdata, 0);
 	} else {
 		ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID);
-		ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid[1], NULL, 0);
+		ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid[1], NULL, 0,
+					 true);
 	}
 
 	ifmgd->probe_send_count++;
@@ -1289,7 +1302,7 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
 
 	ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID);
 	skb = ieee80211_build_probe_req(sdata, ifmgd->associated->bssid,
-					ssid + 2, ssid[1], NULL, 0);
+					ssid + 2, ssid[1], NULL, 0, true);
 
 	return skb;
 }
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 7fa8c6be7bf..b5493ecd1e9 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -338,7 +338,7 @@ static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
 		u8 *qc = ieee80211_get_qos_ctl(hdr);
 		/* frame has qos control */
 		tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
-		if (*qc & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT)
+		if (*qc & IEEE80211_QOS_CTL_A_MSDU_PRESENT)
 			status->rx_flags |= IEEE80211_RX_AMSDU;
 	} else {
 		/*
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 1758b463c58..e5a6ea4a94e 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -228,6 +228,7 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
 static bool ieee80211_prep_hw_scan(struct ieee80211_local *local)
 {
 	struct cfg80211_scan_request *req = local->scan_req;
+	struct ieee80211_sub_if_data *sdata = local->scan_sdata;
 	enum ieee80211_band band;
 	int i, ielen, n_chans;
 
@@ -251,8 +252,8 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local)
 	local->hw_scan_req->n_channels = n_chans;
 
 	ielen = ieee80211_build_preq_ies(local, (u8 *)local->hw_scan_req->ie,
-					 req->ie, req->ie_len, band, (u32) -1,
-					 0);
+					 req->ie, req->ie_len, band,
+					 sdata->rc_rateidx_mask[band], 0);
 	local->hw_scan_req->ie_len = ielen;
 
 	return true;
@@ -658,7 +659,8 @@ static void ieee80211_scan_state_send_probe(struct ieee80211_local *local,
 			sdata, NULL,
 			local->scan_req->ssids[i].ssid,
 			local->scan_req->ssids[i].ssid_len,
-			local->scan_req->ie, local->scan_req->ie_len);
+			local->scan_req->ie, local->scan_req->ie_len,
+			false);
 
 	/*
 	 * After sending probe requests, wait for probe responses
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 05e3fb889d7..652e5695225 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1018,7 +1018,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
 					  u8 *dst,
 					  const u8 *ssid, size_t ssid_len,
-					  const u8 *ie, size_t ie_len)
+					  const u8 *ie, size_t ie_len,
+					  bool directed)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct sk_buff *skb;
@@ -1035,8 +1036,16 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
 		return NULL;
 	}
 
-	chan = ieee80211_frequency_to_channel(
-		local->hw.conf.channel->center_freq);
+	/*
+	 * Do not send DS Channel parameter for directed probe requests
+	 * in order to maximize the chance that we get a response.  Some
+	 * badly-behaved APs don't respond when this parameter is included.
+	 */
+	if (directed)
+		chan = 0;
+	else
+		chan = ieee80211_frequency_to_channel(
+			local->hw.conf.channel->center_freq);
 
 	buf_len = ieee80211_build_preq_ies(local, buf, ie, ie_len,
 					   local->hw.conf.channel->band,
@@ -1062,11 +1071,13 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
 
 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 			      const u8 *ssid, size_t ssid_len,
-			      const u8 *ie, size_t ie_len)
+			      const u8 *ie, size_t ie_len,
+			      bool directed)
 {
 	struct sk_buff *skb;
 
-	skb = ieee80211_build_probe_req(sdata, dst, ssid, ssid_len, ie, ie_len);
+	skb = ieee80211_build_probe_req(sdata, dst, ssid, ssid_len, ie, ie_len,
+					directed);
 	if (skb)
 		ieee80211_tx_skb(sdata, skb);
 }
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 28bc084dbfb..7a49532f14c 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -151,8 +151,7 @@ void ieee80211_set_qos_hdr(struct ieee80211_local *local, struct sk_buff *skb)
 		tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
 
 		if (unlikely(local->wifi_wme_noack_test))
-			ack_policy |= QOS_CONTROL_ACK_POLICY_NOACK <<
-					QOS_CONTROL_ACK_POLICY_SHIFT;
+			ack_policy |= IEEE80211_QOS_CTL_ACK_POLICY_NOACK;
 		/* qos header is 2 bytes, second reserved */
 		*p++ = ack_policy | tid;
 		*p = 0;
diff --git a/net/mac80211/wme.h b/net/mac80211/wme.h
index 6053b1c9fee..faead6d0202 100644
--- a/net/mac80211/wme.h
+++ b/net/mac80211/wme.h
@@ -13,11 +13,6 @@
 #include <linux/netdevice.h>
 #include "ieee80211_i.h"
 
-#define QOS_CONTROL_ACK_POLICY_NORMAL 0
-#define QOS_CONTROL_ACK_POLICY_NOACK 1
-
-#define QOS_CONTROL_ACK_POLICY_SHIFT 5
-
 extern const int ieee802_1d_to_ac[8];
 
 u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/work.c b/net/mac80211/work.c
index d2e7f0e8667..edf8583280c 100644
--- a/net/mac80211/work.c
+++ b/net/mac80211/work.c
@@ -450,7 +450,7 @@ ieee80211_direct_probe(struct ieee80211_work *wk)
 	 * will not answer to direct packet in unassociated state.
 	 */
 	ieee80211_send_probe_req(sdata, NULL, wk->probe_auth.ssid,
-				 wk->probe_auth.ssid_len, NULL, 0);
+				 wk->probe_auth.ssid_len, NULL, 0, true);
 
 	wk->timeout = jiffies + IEEE80211_AUTH_TIMEOUT;
 	run_again(local, wk->timeout);
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 9dc3b5f26e8..d91c1a26630 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -154,7 +154,13 @@ update_iv:
 	return RX_CONTINUE;
 
 mic_fail:
-	mac80211_ev_michael_mic_failure(rx->sdata, rx->key->conf.keyidx,
+	/*
+	 * In some cases the key can be unset - e.g. a multicast packet, in
+	 * a driver that supports HW encryption. Send up the key idx only if
+	 * the key is set.
+	 */
+	mac80211_ev_michael_mic_failure(rx->sdata,
+					rx->key ? rx->key->conf.keyidx : -1,
 					(void *) skb->data, NULL, GFP_ATOMIC);
 	return RX_DROP_UNUSABLE;
 }