mc_first
m_freem(mc_first(mc));
mtail->m_next = mc_first(&mc);
m = mc_first(&mc);
MPASS(!(mc_first(head)->m_flags & M_PKTHDR));
mc_first(&mc)->m_pkthdr.len = mc.mc_len;
mc_first(&mc)->m_pkthdr.memlen = mc.mc_mlen;
return (mc_first(&mc));
mc_first(mc)->m_data += lspace;
unp_scan(mc_first(&cmc), unp_freerights);
unp_scan(mc_first(&cmc),
f->m_next = mc_first(&cmc);
unp_scan(mc_first(&cmc), unp_freerights);
unp_internalize_cleanup_rights(mc_first(mc));
m_copyback(mc_first(&mc), 0, NLA_DATA_LEN(attrs.data),
cr->cr_mrep = mc_first(&mc);
m_freem(mc_first(mc));