[B.A.T.M.A.N.] [PATCHv14 0/6] Basic Multicast Optimizations

This is the fourteenth revision of the basic multicast optimization patches.

Changes in v14 include:

* fixed compilation for CONFIG_BATMAN_ADV_MCAST=n (issue was introduced by v13) * fixed potential null pointer exception (moved ethhdr assignment in batadv_mcast_forw_mode() to after the check methods / pskb_may_pull()s) * removed flag-list-"helper" functions * removed methods which were performing both counting and orig_node retrieval in batadv_mcast_forw_mode(), instead doing that in two logical, seperate sections in batadv_mcast_forw_mode()

Cheers, Linus