Merge commit 'keithp/drm-intel-next' into drm-intel-next

[karo-tx-linux.git] / net / mac80211 / sta_info.c

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 654a8e963ccb40d0f661f9583a0949cffed4c2b0..a360bceeba59461d8d83e20220a60aba06fe693d 100644 (file)
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -19,6 +19,7 @@
 
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 #include "sta_info.h"
 #include "debugfs_sta.h"
@@ -43,6 +44,15 @@
  * When the insertion fails (sta_info_insert()) returns non-zero), the
  * structure will have been freed by sta_info_insert()!
  *
+ * sta entries are added by mac80211 when you establish a link with a
+ * peer. This means different things for the different type of interfaces
+ * we support. For a regular station this mean we add the AP sta when we
+ * receive an assocation response from the AP. For IBSS this occurs when
+ * we receive a probe response or a beacon from target IBSS network. For
+ * WDS we add the sta for the peer imediately upon device open. When using
+ * AP mode we add stations for each respective station upon request from
+ * userspace through nl80211.
+ *
  * Because there are debugfs entries for each station, and adding those
  * must be able to sleep, it is also possible to "pin" a station entry,
  * that means it can be removed from the hash table but not be freed.
@@ -292,6 +302,9 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
        skb_queue_head_init(&sta->ps_tx_buf);
        skb_queue_head_init(&sta->tx_filtered);
 
+       for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+               sta->last_seq_ctrl[i] = cpu_to_le16(USHORT_MAX);
+
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
        printk(KERN_DEBUG "%s: Allocated STA %pM\n",
               wiphy_name(local->hw.wiphy), sta->sta.addr);
@@ -346,8 +359,7 @@ int sta_info_insert(struct sta_info *sta)
                                             struct ieee80211_sub_if_data,
                                             u.ap);
 
-               local->ops->sta_notify(local_to_hw(local), &sdata->vif,
-                                      STA_NOTIFY_ADD, &sta->sta);
+               drv_sta_notify(local, &sdata->vif, STA_NOTIFY_ADD, &sta->sta);
        }
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
@@ -405,8 +417,7 @@ static void __sta_info_set_tim_bit(struct ieee80211_if_ap *bss,
 
        if (sta->local->ops->set_tim) {
                sta->local->tim_in_locked_section = true;
-               sta->local->ops->set_tim(local_to_hw(sta->local),
-                                        &sta->sta, true);
+               drv_set_tim(sta->local, &sta->sta, true);
                sta->local->tim_in_locked_section = false;
        }
 }
@@ -431,8 +442,7 @@ static void __sta_info_clear_tim_bit(struct ieee80211_if_ap *bss,
 
        if (sta->local->ops->set_tim) {
                sta->local->tim_in_locked_section = true;
-               sta->local->ops->set_tim(local_to_hw(sta->local),
-                                        &sta->sta, false);
+               drv_set_tim(sta->local, &sta->sta, false);
                sta->local->tim_in_locked_section = false;
        }
 }
@@ -482,8 +492,8 @@ static void __sta_info_unlink(struct sta_info **sta)
                                             struct ieee80211_sub_if_data,
                                             u.ap);
 
-               local->ops->sta_notify(local_to_hw(local), &sdata->vif,
-                                      STA_NOTIFY_REMOVE, &(*sta)->sta);
+               drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE,
+                              &(*sta)->sta);
        }
 
        if (ieee80211_vif_is_mesh(&sdata->vif)) {
@@ -543,9 +553,8 @@ void sta_info_unlink(struct sta_info **sta)
        spin_unlock_irqrestore(&local->sta_lock, flags);
 }
 
-static inline int sta_info_buffer_expired(struct ieee80211_local *local,
-                                         struct sta_info *sta,
-                                         struct sk_buff *skb)
+static int sta_info_buffer_expired(struct sta_info *sta,
+                                  struct sk_buff *skb)
 {
        struct ieee80211_tx_info *info;
        int timeout;
@@ -556,8 +565,9 @@ static inline int sta_info_buffer_expired(struct ieee80211_local *local,
        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;
+       timeout = (sta->listen_interval *
+                  sta->sdata->vif.bss_conf.beacon_int *
+                  32 / 15625) * HZ;
        if (timeout < STA_TX_BUFFER_EXPIRE)
                timeout = STA_TX_BUFFER_EXPIRE;
        return time_after(jiffies, info->control.jiffies + timeout);
@@ -577,7 +587,7 @@ static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
        for (;;) {
                spin_lock_irqsave(&sta->ps_tx_buf.lock, flags);
                skb = skb_peek(&sta->ps_tx_buf);
-               if (sta_info_buffer_expired(local, sta, skb))
+               if (sta_info_buffer_expired(sta, skb))
                        skb = __skb_dequeue(&sta->ps_tx_buf);
                else
                        skb = NULL;
@@ -610,6 +620,9 @@ static void sta_info_cleanup(unsigned long data)
                sta_info_cleanup_expire_buffered(local, sta);
        rcu_read_unlock();
 
+       if (local->quiescing)
+               return;
+
        local->sta_cleanup.expires =
                round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL);
        add_timer(&local->sta_cleanup);