mac80211: Add support for connection monitor in hardware

This patch is based on a RFC patch by Kalle Valo.

The wl1271 has a feature which handles the connection monitor logic
in hardware, basically sending periodically nullfunc frames and reporting
to the host if AP is lost, after attempting to recover by sending
probe-requests to the AP.

Add support to mac80211 by adding a new flag IEEE80211_HW_CONNECTION_MONITOR
which prevents conn_mon_timer from triggering during idle periods, and
prevents sending probe-requests to the AP if beacon-loss is indicated by the
hardware.

Cc: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index d5571b9420cd..b4ec59a8dc03 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -486,7 +486,7 @@ 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.monitor_work);
-                cancel_work_sync(&sdata->u.mgd.beacon_loss_work);
+                cancel_work_sync(&sdata->u.mgd.beacon_connection_loss_work);
 
                 /*
                  * When we get here, the interface is marked down.