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Commit 478f8d2b authored by Tomas Winkler's avatar Tomas Winkler Committed by David S. Miller
Browse files

[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: default avatarTomas Winkler <tomas.winkler@intel.com>
Acked-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 42613db7

include/net/mac80211.h

+16 −4
Original line number Diff line number Diff line
@@ -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,

net/mac80211/sta_info.c

+7 −6
Original line number Diff line number Diff line
@@ -159,9 +159,9 @@ struct sta_info * sta_info_add(struct ieee80211_local *local, 
	list_add(&sta->list, &local->sta_list);

	local->num_sta++;

	sta_info_hash_add(local, sta);

	if (local->ops->sta_table_notification)

		local->ops->sta_table_notification(local_to_hw(local),

						  local->num_sta);

	if (local->ops->sta_notify)

		local->ops->sta_notify(local_to_hw(local), dev->ifindex,

					STA_NOTIFY_ADD, addr);

	write_unlock_bh(&local->sta_lock);



#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
@@ -199,9 +199,6 @@ void sta_info_remove(struct sta_info *sta) 
	local->num_sta--;

	sta_info_remove_aid_ptr(sta);



	if (local->ops->sta_table_notification)

		local->ops->sta_table_notification(local_to_hw(local),

						   local->num_sta);

}



void sta_info_free(struct sta_info *sta)
@@ -232,6 +229,10 @@ void sta_info_free(struct sta_info *sta) 
	ieee80211_key_free(sta->key);

	sta->key = NULL;



	if (local->ops->sta_notify)

		local->ops->sta_notify(local_to_hw(local), sta->dev->ifindex,

					STA_NOTIFY_REMOVE, sta->addr);



	rate_control_remove_sta_debugfs(sta);

	ieee80211_sta_debugfs_remove(sta);