3 files changed, 61 insertions, 68 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 579085564883..fe87819954a5 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1646,6 +1646,7 @@ int cfg80211_wext_siwtxpower(struct net_device *dev,
 int cfg80211_wext_giwtxpower(struct net_device *dev,
                              struct iw_request_info *info,
                              union iwreq_data *data, char *keybuf);
+struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev);
 
 int cfg80211_wext_siwpower(struct net_device *dev,
                            struct iw_request_info *info,
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 244d830f5cfb..5acb8140ee58 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -165,73 +165,6 @@ static int ieee80211_ioctl_giwap(struct net_device *dev,
 }
 
 
-/* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
-static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
-{
-        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-        struct iw_statistics *wstats = &local->wstats;
-        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-        struct sta_info *sta = NULL;
-
-        rcu_read_lock();
-
-        if (sdata->vif.type == NL80211_IFTYPE_STATION)
-                sta = sta_info_get(local, sdata->u.mgd.bssid);
-
-        if (!sta) {
-                wstats->discard.fragment = 0;
-                wstats->discard.misc = 0;
-                wstats->qual.qual = 0;
-                wstats->qual.level = 0;
-                wstats->qual.noise = 0;
-                wstats->qual.updated = IW_QUAL_ALL_INVALID;
-        } else {
-                wstats->qual.updated = 0;
-                /*
-                 * mirror what cfg80211 does for iwrange/scan results,
-                 * otherwise userspace gets confused.
-                 */
-                if (local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
-                                       IEEE80211_HW_SIGNAL_DBM)) {
-                        wstats->qual.updated |= IW_QUAL_LEVEL_UPDATED;
-                        wstats->qual.updated |= IW_QUAL_QUAL_UPDATED;
-                } else {
-                        wstats->qual.updated |= IW_QUAL_LEVEL_INVALID;
-                        wstats->qual.updated |= IW_QUAL_QUAL_INVALID;
-                }
-
-                if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) {
-                        wstats->qual.level = sta->last_signal;
-                        wstats->qual.qual = sta->last_signal;
-                } else if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
-                        int sig = sta->last_signal;
-
-                        wstats->qual.updated |= IW_QUAL_DBM;
-                        wstats->qual.level = sig;
-                        if (sig < -110)
-                                sig = -110;
-                        else if (sig > -40)
-                                sig = -40;
-                        wstats->qual.qual = sig + 110;
-                }
-
-                if (local->hw.flags & IEEE80211_HW_NOISE_DBM) {
-                        /*
-                         * This assumes that if driver reports noise, it also
-                         * reports signal in dBm.
-                         */
-                        wstats->qual.noise = sta->last_noise;
-                        wstats->qual.updated |= IW_QUAL_NOISE_UPDATED;
-                } else {
-                        wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
-                }
-        }
-
-        rcu_read_unlock();
-
-        return wstats;
-}
-
 /* Structures to export the Wireless Handlers */
 
 static const iw_handler ieee80211_handler[] =
@@ -298,5 +231,5 @@ const struct iw_handler_def ieee80211_iw_handler_def =
 {
         .num_standard   = ARRAY_SIZE(ieee80211_handler),
         .standard       = (iw_handler *) ieee80211_handler,
-        .get_wireless_stats = ieee80211_get_wireless_stats,
+        .get_wireless_stats = cfg80211_wireless_stats,
 };
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 3a5f999703f1..226cf8609079 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -1156,3 +1156,62 @@ int cfg80211_wext_giwrate(struct net_device *dev,
         return 0;
 }
 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
+
+/* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
+struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+        /* we are under RTNL - globally locked - so can use static structs */
+        static struct iw_statistics wstats;
+        static struct station_info sinfo;
+        u8 *addr;
+
+        if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
+                return NULL;
+
+        if (!rdev->ops->get_station)
+                return NULL;
+
+        addr = wdev->wext.connect.bssid;
+        if (!addr)
+                return NULL;
+
+        if (rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo))
+                return NULL;
+
+        memset(&wstats, 0, sizeof(wstats));
+
+        switch (rdev->wiphy.signal_type) {
+        case CFG80211_SIGNAL_TYPE_MBM:
+                if (sinfo.filled & STATION_INFO_SIGNAL) {
+                        int sig = sinfo.signal;
+                        wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
+                        wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
+                        wstats.qual.updated |= IW_QUAL_DBM;
+                        wstats.qual.level = sig;
+                        if (sig < -110)
+                                sig = -110;
+                        else if (sig > -40)
+                                sig = -40;
+                        wstats.qual.qual = sig + 110;
+                        break;
+                }
+        case CFG80211_SIGNAL_TYPE_UNSPEC:
+                if (sinfo.filled & STATION_INFO_SIGNAL) {
+                        wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
+                        wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
+                        wstats.qual.level = sinfo.signal;
+                        wstats.qual.qual = sinfo.signal;
+                        break;
+                }
+        default:
+                wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
+                wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
+        }
+
+        wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
+
+        return &wstats;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);