---

yaml --- r: 300677 b: refs/heads/master c: 64f68e5 h: refs/heads/master i: 300675: ab994bf v: v3
git-mirror · Apr 10, 2012 · 81a489f · 81a489f
1 parent 89aedaa
commit 81a489f
Show file tree

Hide file tree

Showing 11 changed files with 51 additions and 75 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 24398e39c8ee4a9d9123eed322b859ece4d16cac
+refs/heads/master: 64f68e5d15bee47e0d6d0c57a1cf52cedd9b3527
diff --git a/trunk/drivers/net/wireless/ath/ath9k/rc.c b/trunk/drivers/net/wireless/ath/ath9k/rc.c
@@ -1436,7 +1436,7 @@ static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband,
 
 static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband,
 			    struct ieee80211_sta *sta, void *priv_sta,
-			    u32 changed, enum nl80211_channel_type oper_chan_type)
+			    u32 changed)
 {
 	struct ath_softc *sc = priv;
 	struct ath_rate_priv *ath_rc_priv = priv_sta;
@@ -1451,8 +1451,7 @@ static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband,
 		if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
 			return;
 
-		if (oper_chan_type == NL80211_CHAN_HT40MINUS ||
-		    oper_chan_type == NL80211_CHAN_HT40PLUS)
+		if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
 			oper_cw40 = true;
 
 		if (oper_cw40)

diff --git a/trunk/drivers/net/wireless/rtlwifi/rc.c b/trunk/drivers/net/wireless/rtlwifi/rc.c
@@ -225,8 +225,7 @@ static void rtl_rate_init(void *ppriv,
 static void rtl_rate_update(void *ppriv,
 			    struct ieee80211_supported_band *sband,
 			    struct ieee80211_sta *sta, void *priv_sta,
-			    u32 changed,
-			    enum nl80211_channel_type oper_chan_type)
+			    u32 changed)
 {
 }
 

diff --git a/trunk/include/net/mac80211.h b/trunk/include/net/mac80211.h
@@ -3569,9 +3569,8 @@ struct rate_control_ops {
 	void (*rate_init)(void *priv, struct ieee80211_supported_band *sband,
 			  struct ieee80211_sta *sta, void *priv_sta);
 	void (*rate_update)(void *priv, struct ieee80211_supported_band *sband,
-			    struct ieee80211_sta *sta,
-			    void *priv_sta, u32 changed,
-			    enum nl80211_channel_type oper_chan_type);
+			    struct ieee80211_sta *sta, void *priv_sta,
+			    u32 changed);
 	void (*free_sta)(void *priv, struct ieee80211_sta *sta,
 			 void *priv_sta);
 

diff --git a/trunk/net/mac80211/chan.c b/trunk/net/mac80211/chan.c
@@ -135,29 +135,3 @@ bool ieee80211_set_channel_type(struct ieee80211_local *local,
 
 	return result;
 }
-
-/*
- * ieee80211_get_tx_channel_type returns the channel type we should
- * use for packet transmission, given the channel capability and
- * whatever regulatory flags we have been given.
- */
-enum nl80211_channel_type ieee80211_get_tx_channel_type(
-				struct ieee80211_local *local,
-				enum nl80211_channel_type channel_type)
-{
-	switch (channel_type) {
-	case NL80211_CHAN_HT40PLUS:
-		if (local->hw.conf.channel->flags &
-				IEEE80211_CHAN_NO_HT40PLUS)
-			return NL80211_CHAN_HT20;
-		break;
-	case NL80211_CHAN_HT40MINUS:
-		if (local->hw.conf.channel->flags &
-				IEEE80211_CHAN_NO_HT40MINUS)
-			return NL80211_CHAN_HT20;
-		break;
-	default:
-		break;
-	}
-	return channel_type;
-}
diff --git a/trunk/net/mac80211/ieee80211_i.h b/trunk/net/mac80211/ieee80211_i.h
@@ -512,8 +512,6 @@ struct ieee80211_if_managed {
 	int rssi_min_thold, rssi_max_thold;
 	int last_ave_beacon_signal;
 
-	enum nl80211_channel_type tx_chantype;
-
 	struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
 	struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
 };
@@ -1501,9 +1499,6 @@ bool ieee80211_set_channel_type(struct ieee80211_local *local,
 				enum nl80211_channel_type chantype);
 enum nl80211_channel_type
 ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper);
-enum nl80211_channel_type ieee80211_get_tx_channel_type(
-					struct ieee80211_local *local,
-					enum nl80211_channel_type channel_type);
 
 #ifdef CONFIG_MAC80211_NOINLINE
 #define debug_noinline noinline

diff --git a/trunk/net/mac80211/mlme.c b/trunk/net/mac80211/mlme.c
@@ -180,21 +180,38 @@ static u32 ieee80211_config_ht_tx(struct ieee80211_sub_if_data *sdata,
 	struct sta_info *sta;
 	u32 changed = 0;
 	u16 ht_opmode;
-	enum nl80211_channel_type channel_type;
+	bool disable_40 = false;
 
 	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-	channel_type = local->hw.conf.channel_type;
 
-	if (WARN_ON_ONCE(channel_type == NL80211_CHAN_NO_HT))
-		return 0;
-
-	channel_type = ieee80211_get_tx_channel_type(local, channel_type);
+	switch (sdata->vif.bss_conf.channel_type) {
+	case NL80211_CHAN_HT40PLUS:
+		if (local->hw.conf.channel->flags & IEEE80211_CHAN_NO_HT40PLUS)
+			disable_40 = true;
+		break;
+	case NL80211_CHAN_HT40MINUS:
+		if (local->hw.conf.channel->flags & IEEE80211_CHAN_NO_HT40MINUS)
+			disable_40 = true;
+		break;
+	default:
+		break;
+	}
 
 	/* This can change during the lifetime of the BSS */
 	if (!(ht_oper->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY))
-		channel_type = NL80211_CHAN_HT20;
+		disable_40 = true;
 
-	if (!reconfig || (sdata->u.mgd.tx_chantype != channel_type)) {
+	mutex_lock(&local->sta_mtx);
+	sta = sta_info_get(sdata, bssid);
+
+	WARN_ON_ONCE(!sta);
+
+	if (sta && !sta->supports_40mhz)
+		disable_40 = true;
+
+	if (sta && (!reconfig ||
+		    (disable_40 != !!(sta->sta.ht_cap.cap &
+					IEEE80211_HT_CAP_SUP_WIDTH_20_40)))) {
 		if (reconfig) {
 			/*
 			 * Whenever the AP announces the HT mode changed
@@ -211,20 +228,19 @@ static u32 ieee80211_config_ht_tx(struct ieee80211_sub_if_data *sdata,
 			drv_flush(local, false);
 		}
 
-		rcu_read_lock();
-		sta = sta_info_get(sdata, bssid);
-		if (sta)
-			rate_control_rate_update(local, sband, sta,
-						 IEEE80211_RC_HT_CHANGED,
-						 channel_type);
-		rcu_read_unlock();
+		if (disable_40)
+			sta->sta.ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+		else
+			sta->sta.ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 
-		sdata->u.mgd.tx_chantype = channel_type;
+		rate_control_rate_update(local, sband, sta,
+					 IEEE80211_RC_HT_CHANGED);
 
 		if (reconfig)
 			ieee80211_wake_queues_by_reason(&sdata->local->hw,
 				IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE);
 	}
+	mutex_unlock(&local->sta_mtx);
 
 	ht_opmode = le16_to_cpu(ht_oper->operation_mode);
 
@@ -2006,6 +2022,9 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 		ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
 				elems.ht_cap_elem, &sta->sta.ht_cap);
 
+	sta->supports_40mhz =
+		sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+
 	rate_control_rate_init(sta);
 
 	if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED)

diff --git a/trunk/net/mac80211/rate.h b/trunk/net/mac80211/rate.h
@@ -63,16 +63,15 @@ static inline void rate_control_rate_init(struct sta_info *sta)
 
 static inline void rate_control_rate_update(struct ieee80211_local *local,
 				    struct ieee80211_supported_band *sband,
-				    struct sta_info *sta, u32 changed,
-				    enum nl80211_channel_type oper_chan_type)
+				    struct sta_info *sta, u32 changed)
 {
 	struct rate_control_ref *ref = local->rate_ctrl;
 	struct ieee80211_sta *ista = &sta->sta;
 	void *priv_sta = sta->rate_ctrl_priv;
 
 	if (ref && ref->ops->rate_update)
 		ref->ops->rate_update(ref->priv, sband, ista,
-				      priv_sta, changed, oper_chan_type);
+				      priv_sta, changed);
 }
 
 static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,

diff --git a/trunk/net/mac80211/rc80211_minstrel_ht.c b/trunk/net/mac80211/rc80211_minstrel_ht.c
@@ -686,8 +686,7 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
 
 static void
 minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
-                        struct ieee80211_sta *sta, void *priv_sta,
-			enum nl80211_channel_type oper_chan_type)
+                        struct ieee80211_sta *sta, void *priv_sta)
 {
 	struct minstrel_priv *mp = priv;
 	struct minstrel_ht_sta_priv *msp = priv_sta;
@@ -735,10 +734,6 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
 	if (sta_cap & IEEE80211_HT_CAP_LDPC_CODING)
 		mi->tx_flags |= IEEE80211_TX_CTL_LDPC;
 
-	if (oper_chan_type != NL80211_CHAN_HT40MINUS &&
-	    oper_chan_type != NL80211_CHAN_HT40PLUS)
-		sta_cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
-
 	smps = (sta_cap & IEEE80211_HT_CAP_SM_PS) >>
 		IEEE80211_HT_CAP_SM_PS_SHIFT;
 
@@ -788,17 +783,15 @@ static void
 minstrel_ht_rate_init(void *priv, struct ieee80211_supported_band *sband,
                       struct ieee80211_sta *sta, void *priv_sta)
 {
-	struct minstrel_priv *mp = priv;
-
-	minstrel_ht_update_caps(priv, sband, sta, priv_sta, mp->hw->conf.channel_type);
+	minstrel_ht_update_caps(priv, sband, sta, priv_sta);
 }
 
 static void
 minstrel_ht_rate_update(void *priv, struct ieee80211_supported_band *sband,
                         struct ieee80211_sta *sta, void *priv_sta,
-                        u32 changed, enum nl80211_channel_type oper_chan_type)
+                        u32 changed)
 {
-	minstrel_ht_update_caps(priv, sband, sta, priv_sta, oper_chan_type);
+	minstrel_ht_update_caps(priv, sband, sta, priv_sta);
 }
 
 static void *

diff --git a/trunk/net/mac80211/rx.c b/trunk/net/mac80211/rx.c
@@ -2268,11 +2268,8 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 
 			sband = rx->local->hw.wiphy->bands[status->band];
 
-			rate_control_rate_update(
-				local, sband, rx->sta,
-				IEEE80211_RC_SMPS_CHANGED,
-				ieee80211_get_tx_channel_type(
-					local, local->_oper_channel_type));
+			rate_control_rate_update(local, sband, rx->sta,
+						 IEEE80211_RC_SMPS_CHANGED);
 			goto handled;
 		}
 		default:

diff --git a/trunk/net/mac80211/sta_info.h b/trunk/net/mac80211/sta_info.h
@@ -369,6 +369,8 @@ struct sta_info {
 	unsigned int lost_packets;
 	unsigned int beacon_loss_count;
 
+	bool supports_40mhz;
+
 	/* keep last! */
 	struct ieee80211_sta sta;
 };