[MAC80211]: add sta_notify callback

This patch adds sta_notify callback and removes sta_table_notification
which was not used by any driver.
sta_notify() is essential for drivers that keeps notion of station
internally and need to be notified about removal or addition of a station
to the (I)BSS or assocation to an AP.

This version adds interface id to the parameter list
as suggested by Johannes Berg

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 16 insertions, 4 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index eac670a22ef4..9bc03f053af0 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -613,6 +613,18 @@ enum set_key_cmd {
         SET_KEY, DISABLE_KEY,
 };
 
+/**
+ * enum sta_notify_cmd - sta notify command
+ *
+ * Used with the sta_notify() callback in &struct ieee80211_ops, this
+ * indicates addition and removal of a station to station table
+ *
+ * @STA_NOTIFY_ADD: a station was added to the station table
+ * @STA_NOTIFY_REMOVE: a station being removed from the station table
+ */
+enum sta_notify_cmd {
+        STA_NOTIFY_ADD, STA_NOTIFY_REMOVE
+};
 
 /**
  * enum ieee80211_hw_flags - hardware flags
@@ -957,8 +969,8 @@ enum ieee80211_erp_change_flags {
  *
  * @set_retry_limit: Configuration of retry limits (if device needs it)
  *
- * @sta_table_notification: Number of STAs in STA table notification. Must
- *      be atomic.
+ * @sta_notify: Notifies low level driver about addition or removal
+ *      of assocaited station or AP.
  *
  * @erp_ie_changed: Handle ERP IE change notifications. Must be atomic.
  *
@@ -1025,8 +1037,8 @@ struct ieee80211_ops {
         int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value);
         int (*set_retry_limit)(struct ieee80211_hw *hw,
                                u32 short_retry, u32 long_retr);
-        void (*sta_table_notification)(struct ieee80211_hw *hw,
-                                       int num_sta);
+        void (*sta_notify)(struct ieee80211_hw *hw, int if_id,
+                        enum sta_notify_cmd, const u8 *addr);
         void (*erp_ie_changed)(struct ieee80211_hw *hw, u8 changes,
                                int cts_protection, int preamble);
         int (*conf_tx)(struct ieee80211_hw *hw, int queue,