PFFRAG_DROP
frag->fr_flags |= PFFRAG_DROP;
if (frag != NULL && (frag->fr_flags & PFFRAG_DROP))
if (((*frag)->fr_flags & PFFRAG_DROP) == 0)
(*frag)->fr_flags |= PFFRAG_DROP;
if (frag != NULL && (frag->fr_flags & PFFRAG_DROP))