mac80211: give virtual interface to hw_scan

When scanning, it is somewhat important to scan
on the correct virtual interface. All drivers
that currently implement hw_scan only support a
single virtual interface, but that may change
and then we'd want to be ready.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index d1f8a7c..997008e 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -154,14 +154,15 @@
 }
 
 static inline int drv_hw_scan(struct ieee80211_local *local,
+			      struct ieee80211_sub_if_data *sdata,
 			      struct cfg80211_scan_request *req)
 {
 	int ret;
 
 	might_sleep();
 
-	ret = local->ops->hw_scan(&local->hw, req);
-	trace_drv_hw_scan(local, req, ret);
+	ret = local->ops->hw_scan(&local->hw, &sdata->vif, req);
+	trace_drv_hw_scan(local, sdata, req, ret);
 	return ret;
 }