mac80211: add beacon filtering support

Add IEEE80211_HW_BEACON_FILTERING flag so that driver inform that it supports
beacon filtering. Drivers need to call the new function
ieee80211_beacon_loss() to notify about beacon loss.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index dd2a276fa8ca..91e8e1bacaaa 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -477,6 +477,9 @@ static int ieee80211_stop(struct net_device *dev)
                  */
                 cancel_work_sync(&sdata->u.mgd.work);
                 cancel_work_sync(&sdata->u.mgd.chswitch_work);
+
+                cancel_work_sync(&sdata->u.mgd.beacon_loss_work);
+
                 /*
                  * When we get here, the interface is marked down.
                  * Call synchronize_rcu() to wait for the RX path