mac80211: call driver method when restart completes

When the driver requests a restart (reconfiguration) it
gets all the normal method calls, but can't really tell
why they're happening. Call a new restart_complete op
in the driver when the restart completes, so it could
keep its own state about the restart and clear it there.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 1701ad7..4dc2577 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -961,4 +961,14 @@
 	trace_drv_return_void(local);
 }
 
+static inline void drv_restart_complete(struct ieee80211_local *local)
+{
+	might_sleep();
+
+	trace_drv_restart_complete(local);
+	if (local->ops->restart_complete)
+		local->ops->restart_complete(&local->hw);
+	trace_drv_return_void(local);
+}
+
 #endif /* __MAC80211_DRIVER_OPS */