Merge tag 'v3.10.90' into update

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / mac80211 / tx.c

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 9972e07a2f9650315521560cfb48267504476200..e960fbe9e271397d6bbb8038bb54727de4b72388 100644 (file)
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -281,9 +281,6 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
        if (tx->sdata->vif.type == NL80211_IFTYPE_WDS)
                return TX_CONTINUE;
 
-       if (tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
-               return TX_CONTINUE;
-
        if (tx->flags & IEEE80211_TX_PS_BUFFERED)
                return TX_CONTINUE;
 
@@ -398,6 +395,9 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)
        if (ieee80211_has_order(hdr->frame_control))
                return TX_CONTINUE;
 
+       if (ieee80211_is_probe_req(hdr->frame_control))
+               return TX_CONTINUE;
+
        /* no stations in PS mode */
        if (!atomic_read(&ps->num_sta_ps))
                return TX_CONTINUE;
@@ -471,6 +471,20 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
                       sta->sta.addr, sta->sta.aid, ac);
                if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
                        purge_old_ps_buffers(tx->local);
+
+               /* sync with ieee80211_sta_ps_deliver_wakeup */
+               spin_lock(&sta->ps_lock);
+               /*
+                * STA woke up the meantime and all the frames on ps_tx_buf have
+                * been queued to pending queue. No reordering can happen, go
+                * ahead and Tx the packet.
+                */
+               if (!test_sta_flag(sta, WLAN_STA_PS_STA) &&
+                   !test_sta_flag(sta, WLAN_STA_PS_DRIVER)) {
+                       spin_unlock(&sta->ps_lock);
+                       return TX_CONTINUE;
+               }
+
                if (skb_queue_len(&sta->ps_tx_buf[ac]) >= STA_MAX_TX_BUFFER) {
                        struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf[ac]);
                        ps_dbg(tx->sdata,
@@ -484,6 +498,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
                info->control.vif = &tx->sdata->vif;
                info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
                skb_queue_tail(&sta->ps_tx_buf[ac], tx->skb);
+               spin_unlock(&sta->ps_lock);
 
                if (!timer_pending(&local->sta_cleanup))
                        mod_timer(&local->sta_cleanup,
@@ -511,7 +526,6 @@ ieee80211_tx_h_ps_buf(struct ieee80211_tx_data *tx)
 {
        if (unlikely(tx->flags & IEEE80211_TX_PS_BUFFERED))
                return TX_CONTINUE;
-
        if (tx->flags & IEEE80211_TX_UNICAST)
                return ieee80211_tx_h_unicast_ps_buf(tx);
        else
@@ -851,7 +865,7 @@ static int ieee80211_fragment(struct ieee80211_tx_data *tx,
        }
 
        /* adjust first fragment's length */
-       skb->len = hdrlen + per_fragm;
+       skb_trim(skb, hdrlen + per_fragm);
        return 0;
 }
 
@@ -1100,7 +1114,8 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
                tx->sta = rcu_dereference(sdata->u.vlan.sta);
                if (!tx->sta && sdata->dev->ieee80211_ptr->use_4addr)
                        return TX_DROP;
-       } else if (info->flags & IEEE80211_TX_CTL_INJECTED ||
+       } else if (info->flags & (IEEE80211_TX_CTL_INJECTED |
+                                 IEEE80211_TX_INTFL_NL80211_FRAME_TX) ||
                   tx->sdata->control_port_protocol == tx->skb->protocol) {
                tx->sta = sta_info_get_bss(sdata, hdr->addr1);
        }
@@ -2692,7 +2707,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
                                cpu_to_le16(IEEE80211_FCTL_MOREDATA);
                }
 
-               if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+               if (sdata->vif.type == NL80211_IFTYPE_AP)
                        sdata = IEEE80211_DEV_TO_SUB_IF(skb->dev);
                if (!ieee80211_tx_prepare(sdata, &tx, skb))
                        break;