cfg80211/mac80211: enable proper device_set_wakeup_enable handling

In WoWLAN, we only get the triggers when we actually get
to suspend. As a consequence, drivers currently don't
know that the device should enable wakeup. However, the
device_set_wakeup_enable() API is intended to be called
when the wakeup is enabled, not later when needed.

Add a new set_wakeup() call to cfg80211 and mac80211 to
allow drivers to properly call device_set_wakeup_enable.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index d1f017a..7c0754b 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -171,6 +171,20 @@
 	TP_ARGS(local)
 );
 
+TRACE_EVENT(drv_set_wakeup,
+	TP_PROTO(struct ieee80211_local *local, bool enabled),
+	TP_ARGS(local, enabled),
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		__field(bool, enabled)
+	),
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		__entry->enabled = enabled;
+	),
+	TP_printk(LOCAL_PR_FMT " enabled:%d", LOCAL_PR_ARG, __entry->enabled)
+);
+
 DEFINE_EVENT(local_only_evt, drv_stop,
 	TP_PROTO(struct ieee80211_local *local),
 	TP_ARGS(local)