Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

[pandora-kernel.git] / net / mac80211 / sta_info.c

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 7d4fe4a..f2ba653 100644 (file)
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -135,6 +135,7 @@ struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx,
 /**
  * __sta_info_free - internal STA free helper
  *
+ * @local: pointer to the global information
  * @sta: STA info to free
  *
  * This function must undo everything done by sta_info_alloc()
@@ -202,14 +203,12 @@ void sta_info_destroy(struct sta_info *sta)
                dev_kfree_skb_any(skb);
 
        for (i = 0; i <  STA_TID_NUM; i++) {
-               spin_lock_bh(&sta->ampdu_mlme.ampdu_rx);
+               spin_lock_bh(&sta->lock);
                if (sta->ampdu_mlme.tid_rx[i])
                  del_timer_sync(&sta->ampdu_mlme.tid_rx[i]->session_timer);
-               spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
-               spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
                if (sta->ampdu_mlme.tid_tx[i])
                  del_timer_sync(&sta->ampdu_mlme.tid_tx[i]->addba_resp_timer);
-               spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+               spin_unlock_bh(&sta->lock);
        }
 
        __sta_info_free(local, sta);
@@ -236,6 +235,9 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
        if (!sta)
                return NULL;
 
+       spin_lock_init(&sta->lock);
+       spin_lock_init(&sta->flaglock);
+
        memcpy(sta->addr, addr, ETH_ALEN);
        sta->local = local;
        sta->sdata = sdata;
@@ -249,15 +251,13 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
                return NULL;
        }
 
-       spin_lock_init(&sta->ampdu_mlme.ampdu_rx);
-       spin_lock_init(&sta->ampdu_mlme.ampdu_tx);
        for (i = 0; i < STA_TID_NUM; i++) {
                /* timer_to_tid must be initialized with identity mapping to
                 * enable session_timer's data differentiation. refer to
                 * sta_rx_agg_session_timer_expired for useage */
                sta->timer_to_tid[i] = i;
                /* tid to tx queue: initialize according to HW (0 is valid) */
-               sta->tid_to_tx_q[i] = local->hw.queues;
+               sta->tid_to_tx_q[i] = ieee80211_num_queues(&local->hw);
                /* rx */
                sta->ampdu_mlme.tid_state_rx[i] = HT_AGG_STATE_IDLE;
                sta->ampdu_mlme.tid_rx[i] = NULL;
@@ -276,7 +276,6 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 
 #ifdef CONFIG_MAC80211_MESH
        sta->plink_state = PLINK_LISTEN;
-       spin_lock_init(&sta->plink_lock);
        init_timer(&sta->plink_timer);
 #endif
 
@@ -321,7 +320,9 @@ int sta_info_insert(struct sta_info *sta)
        /* notify driver */
        if (local->ops->sta_notify) {
                if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
-                       sdata = sdata->u.vlan.ap;
+                       sdata = container_of(sdata->bss,
+                                            struct ieee80211_sub_if_data,
+                                            u.ap);
 
                local->ops->sta_notify(local_to_hw(local), &sdata->vif,
                                       STA_NOTIFY_ADD, sta->addr);
@@ -376,8 +377,10 @@ static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
 static void __sta_info_set_tim_bit(struct ieee80211_if_ap *bss,
                                   struct sta_info *sta)
 {
-       if (bss)
-               __bss_tim_set(bss, sta->aid);
+       BUG_ON(!bss);
+
+       __bss_tim_set(bss, sta->aid);
+
        if (sta->local->ops->set_tim) {
                sta->local->tim_in_locked_section = true;
                sta->local->ops->set_tim(local_to_hw(sta->local), sta->aid, 1);
@@ -389,6 +392,8 @@ void sta_info_set_tim_bit(struct sta_info *sta)
 {
        unsigned long flags;
 
+       BUG_ON(!sta->sdata->bss);
+
        spin_lock_irqsave(&sta->local->sta_lock, flags);
        __sta_info_set_tim_bit(sta->sdata->bss, sta);
        spin_unlock_irqrestore(&sta->local->sta_lock, flags);
@@ -397,8 +402,10 @@ void sta_info_set_tim_bit(struct sta_info *sta)
 static void __sta_info_clear_tim_bit(struct ieee80211_if_ap *bss,
                                     struct sta_info *sta)
 {
-       if (bss)
-               __bss_tim_clear(bss, sta->aid);
+       BUG_ON(!bss);
+
+       __bss_tim_clear(bss, sta->aid);
+
        if (sta->local->ops->set_tim) {
                sta->local->tim_in_locked_section = true;
                sta->local->ops->set_tim(local_to_hw(sta->local), sta->aid, 0);
@@ -410,6 +417,8 @@ void sta_info_clear_tim_bit(struct sta_info *sta)
 {
        unsigned long flags;
 
+       BUG_ON(!sta->sdata->bss);
+
        spin_lock_irqsave(&sta->local->sta_lock, flags);
        __sta_info_clear_tim_bit(sta->sdata->bss, sta);
        spin_unlock_irqrestore(&sta->local->sta_lock, flags);
@@ -437,10 +446,10 @@ void __sta_info_unlink(struct sta_info **sta)
 
        list_del(&(*sta)->list);
 
-       if ((*sta)->flags & WLAN_STA_PS) {
-               (*sta)->flags &= ~WLAN_STA_PS;
-               if (sdata->bss)
-                       atomic_dec(&sdata->bss->num_sta_ps);
+       if (test_and_clear_sta_flags(*sta, WLAN_STA_PS)) {
+               BUG_ON(!sdata->bss);
+
+               atomic_dec(&sdata->bss->num_sta_ps);
                __sta_info_clear_tim_bit(sdata->bss, *sta);
        }
 
@@ -448,7 +457,9 @@ void __sta_info_unlink(struct sta_info **sta)
 
        if (local->ops->sta_notify) {
                if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
-                       sdata = sdata->u.vlan.ap;
+                       sdata = container_of(sdata->bss,
+                                            struct ieee80211_sub_if_data,
+                                            u.ap);
 
                local->ops->sta_notify(local_to_hw(local), &sdata->vif,
                                       STA_NOTIFY_REMOVE, (*sta)->addr);
@@ -515,20 +526,20 @@ static inline int sta_info_buffer_expired(struct ieee80211_local *local,
                                          struct sta_info *sta,
                                          struct sk_buff *skb)
 {
-       struct ieee80211_tx_packet_data *pkt_data;
+       struct ieee80211_tx_info *info;
        int timeout;
 
        if (!skb)
                return 0;
 
-       pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+       info = IEEE80211_SKB_CB(skb);
 
        /* Timeout: (2 * listen_interval * beacon_int * 1024 / 1000000) sec */
        timeout = (sta->listen_interval * local->hw.conf.beacon_int * 32 /
                   15625) * HZ;
        if (timeout < STA_TX_BUFFER_EXPIRE)
                timeout = STA_TX_BUFFER_EXPIRE;
-       return time_after(jiffies, pkt_data->jiffies + timeout);
+       return time_after(jiffies, info->control.jiffies + timeout);
 }
 
 
@@ -557,8 +568,10 @@ static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
 
                sdata = sta->sdata;
                local->total_ps_buffered--;
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
                printk(KERN_DEBUG "Buffered frame expired (STA "
                       "%s)\n", print_mac(mac, sta->addr));
+#endif
                dev_kfree_skb(skb);
 
                if (skb_queue_empty(&sta->ps_tx_buf))