mac80211: add QoS IE during TDLS setup start

If QoS is supported by the card, add an appropriate IE to TDLS setup-
request and setup-response frames.

Consolidate the setting of the WMM info IE across mac80211.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 9e025e1..cb87476 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1824,6 +1824,7 @@
 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
 				struct sk_buff *skb, bool need_basic,
 				enum ieee80211_band band);
+u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
 
 /* channel management */
 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,