mac80211: remove probe response temporary buffer allocation

Instead of allocating a temporary buffer to build IEs
build them right into the SKB.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index e806f1d..0472d80 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3144,8 +3144,7 @@
  * @vif: &struct ieee80211_vif pointer from the add_interface callback.
  * @ssid: SSID buffer
  * @ssid_len: length of SSID
- * @ie: buffer containing all IEs except SSID for the template
- * @ie_len: length of the IE buffer
+ * @tailroom: tailroom to reserve at end of SKB for IEs
  *
  * Creates a Probe Request template which can, for example, be uploaded to
  * hardware.
@@ -3153,7 +3152,7 @@
 struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif,
 				       const u8 *ssid, size_t ssid_len,
-				       const u8 *ie, size_t ie_len);
+				       size_t tailroom);
 
 /**
  * ieee80211_rts_get - RTS frame generation function