cfg80211: add documentation for cfg80211_get_bss()

This was missing, but is referenced a lot in the documentation.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

include/net/cfg80211.h

@@ -4699,12 +4699,22 @@ cfg80211_inform_bss(struct wiphy *wiphy,
 					gfp);
 }
 
+/**
+ * cfg80211_get_bss - get a BSS reference
+ * @wiphy: the wiphy this BSS struct belongs to
+ * @channel: the channel to search on (or %NULL)
+ * @bssid: the desired BSSID (or %NULL)
+ * @ssid: the desired SSID (or %NULL)
+ * @ssid_len: length of the SSID (or 0)
+ * @bss_type: type of BSS, see &enum ieee80211_bss_type
+ * @privacy: privacy filter, see &enum ieee80211_privacy
+ */
 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
 				      struct ieee80211_channel *channel,
 				      const u8 *bssid,
 				      const u8 *ssid, size_t ssid_len,
 				      enum ieee80211_bss_type bss_type,
-				      enum ieee80211_privacy);
+				      enum ieee80211_privacy privacy);
 static inline struct cfg80211_bss *
 cfg80211_get_ibss(struct wiphy *wiphy,
 		  struct ieee80211_channel *channel,