Merge branch 'for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6

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

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 7ecda9d59d8a8e0d2eabefde24472a5538b9de3d..132938b073dc061327e8e3e47e00a8919119481e 100644 (file)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -441,6 +441,9 @@ static bool ieee80211_check_tim(struct ieee802_11_elems *elems, u16 aid)
        u8 index, indexn1, indexn2;
        struct ieee80211_tim_ie *tim = (struct ieee80211_tim_ie *) elems->tim;
 
+       if (unlikely(!tim || elems->tim_len < 4))
+               return false;
+
        aid &= 0x3fff;
        index = aid / 8;
        mask  = 1 << (aid & 7);
@@ -945,9 +948,13 @@ void ieee80211_beacon_loss_work(struct work_struct *work)
                             u.mgd.beacon_loss_work);
        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
-       printk(KERN_DEBUG "%s: driver reports beacon loss from AP %pM "
-              "- sending probe request\n", sdata->dev->name,
-              sdata->u.mgd.bssid);
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+       if (net_ratelimit()) {
+               printk(KERN_DEBUG "%s: driver reports beacon loss from AP %pM "
+                      "- sending probe request\n", sdata->dev->name,
+                      sdata->u.mgd.bssid);
+       }
+#endif
 
        ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
        ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
@@ -1007,9 +1014,13 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
              (local->hw.conf.flags & IEEE80211_CONF_PS)) &&
            time_after(jiffies,
                       ifmgd->last_beacon + IEEE80211_MONITORING_INTERVAL)) {
-               printk(KERN_DEBUG "%s: beacon loss from AP %pM "
-                      "- sending probe request\n",
-                      sdata->dev->name, ifmgd->bssid);
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+               if (net_ratelimit()) {
+                       printk(KERN_DEBUG "%s: beacon loss from AP %pM "
+                              "- sending probe request\n",
+                              sdata->dev->name, ifmgd->bssid);
+               }
+#endif
                ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
                ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
                                         ifmgd->ssid_len, NULL, 0);
@@ -1355,7 +1366,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 
        for (i = 0; i < elems.ext_supp_rates_len; i++) {
                int rate = (elems.ext_supp_rates[i] & 0x7f) * 5;
-               bool is_basic = !!(elems.supp_rates[i] & 0x80);
+               bool is_basic = !!(elems.ext_supp_rates[i] & 0x80);
 
                if (rate > 110)
                        have_higher_than_11mbit = true;
@@ -1902,9 +1913,17 @@ static void ieee80211_sta_work(struct work_struct *work)
 
 static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
 {
-       if (sdata->vif.type == NL80211_IFTYPE_STATION)
+       if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+               /*
+                * Need to update last_beacon to avoid beacon loss
+                * test to trigger.
+                */
+               sdata->u.mgd.last_beacon = jiffies;
+
+
                queue_work(sdata->local->hw.workqueue,
                           &sdata->u.mgd.work);
+       }
 }
 
 /* interface setup */
@@ -2105,12 +2124,13 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
        struct ieee80211_local *local =
                container_of(work, struct ieee80211_local,
                             dynamic_ps_enable_work);
+       /* XXX: using scan_sdata is completely broken! */
        struct ieee80211_sub_if_data *sdata = local->scan_sdata;
 
        if (local->hw.conf.flags & IEEE80211_CONF_PS)
                return;
 
-       if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+       if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK && sdata)
                ieee80211_send_nullfunc(local, sdata, 1);
 
        local->hw.conf.flags |= IEEE80211_CONF_PS;