--- batman-adv_master.packet.h 2015-09-27 00:05:01.794035250 +0200 +++ batctl_master.packet.h 2015-09-27 00:05:01.802035795 +0200 @@ -72,7 +72,8 @@ * enum batadv_iv_flags - flags used in B.A.T.M.A.N. IV OGM packets * @BATADV_NOT_BEST_NEXT_HOP: flag is set when ogm packet is forwarded and was * previously received from someone else than the best neighbor. - * @BATADV_PRIMARIES_FIRST_HOP: flag unused. + * @BATADV_PRIMARIES_FIRST_HOP: flag is set when the primary interface address + * is used, and the packet travels its first hop. * @BATADV_DIRECTLINK: flag is for the first hop or if rebroadcasted from a * one hop neighbor on the interface where it was originally received. */