b43/legacy: port to cfg80211 rfkill

This ports the b43/legacy rfkill code to the new API offered
by cfg80211 and thus removes a lot of useless stuff.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index f6f3fbf..e5136fb 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -3431,11 +3431,6 @@
 	struct b43legacy_wldev *dev = wl->current_dev;
 	int did_init = 0;
 	int err = 0;
-	bool do_rfkill_exit = 0;
-
-	/* First register RFkill.
-	 * LEDs that are registered later depend on it. */
-	b43legacy_rfkill_init(dev);
 
 	/* Kill all old instance specific information to make sure
 	 * the card won't use it in the short timeframe between start
@@ -3451,10 +3446,8 @@
 
 	if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
 		err = b43legacy_wireless_core_init(dev);
-		if (err) {
-			do_rfkill_exit = 1;
+		if (err)
 			goto out_mutex_unlock;
-		}
 		did_init = 1;
 	}
 
@@ -3463,17 +3456,15 @@
 		if (err) {
 			if (did_init)
 				b43legacy_wireless_core_exit(dev);
-			do_rfkill_exit = 1;
 			goto out_mutex_unlock;
 		}
 	}
 
+	wiphy_rfkill_start_polling(hw->wiphy);
+
 out_mutex_unlock:
 	mutex_unlock(&wl->mutex);
 
-	if (do_rfkill_exit)
-		b43legacy_rfkill_exit(dev);
-
 	return err;
 }
 
@@ -3482,7 +3473,6 @@
 	struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
 	struct b43legacy_wldev *dev = wl->current_dev;
 
-	b43legacy_rfkill_exit(dev);
 	cancel_work_sync(&(wl->beacon_update_trigger));
 
 	mutex_lock(&wl->mutex);
@@ -3518,6 +3508,7 @@
 	.start			= b43legacy_op_start,
 	.stop			= b43legacy_op_stop,
 	.set_tim		= b43legacy_op_beacon_set_tim,
+	.rfkill_poll		= b43legacy_rfkill_poll,
 };
 
 /* Hard-reset the chip. Do not call this directly.