cfg80211: allow including station info in delete event

When a station is removed, its statistics may be interesting to
userspace, for example for further aggregation of statistics of
all stations that ever connected to an AP.

Introduce a new cfg80211_del_sta_sinfo() function (and make the
cfg80211_del_sta() a static inline calling it) to allow passing
a struct station_info along with this, and send the data in the
nl80211 event message.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 15 insertions, 1 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index f94f0d486d13..42e3d74f1906 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4592,13 +4592,27 @@ void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
                       struct station_info *sinfo, gfp_t gfp);
 
 /**
+ * cfg80211_del_sta_sinfo - notify userspace about deletion of a station
+ * @dev: the netdev
+ * @mac_addr: the station's address
+ * @sinfo: the station information/statistics
+ * @gfp: allocation flags
+ */
+void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
+                            struct station_info *sinfo, gfp_t gfp);
+
+/**
  * cfg80211_del_sta - notify userspace about deletion of a station
  *
  * @dev: the netdev
  * @mac_addr: the station's address
  * @gfp: allocation flags
  */
-void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp);
+static inline void cfg80211_del_sta(struct net_device *dev,
+                                    const u8 *mac_addr, gfp_t gfp)
+{
+        cfg80211_del_sta_sinfo(dev, mac_addr, NULL, gfp);
+}
 
 /**
  * cfg80211_conn_failed - connection request failed notification