Merge if_arcsubr.c:1.26, if_ethersubr.c:1.195, if_fddisubr.c:1.99,
if_iso88025subr.c:1.68 from HEAD to RELENG_5:
When allocating link layer ifnet address list entries in ifp->if_resolvemulti(), do so with M_NOWAIT rather than M_WAITOK, so that a mutex can be held over the call. In the FDDI code, add a missing M_ZERO. Consumers are already aware that if_resolvemulti() can fail.
Approved by: scottl
Silcence from: rwatson (mentor)