pf_hashkey
khs = khw = &V_pf_keyhash[pf_hashkey(skw)];
khs = &V_pf_keyhash[pf_hashkey(sks)];
khw = &V_pf_keyhash[pf_hashkey(skw)];
kh = &V_pf_keyhash[pf_hashkey(sks)];
kh = &V_pf_keyhash[pf_hashkey(s->key[PF_SK_WIRE])];
struct pf_keyhash *kh = &V_pf_keyhash[pf_hashkey(sk)];
kh = &V_pf_keyhash[pf_hashkey((const struct pf_state_key *)key)];
kh = &V_pf_keyhash[pf_hashkey((const struct pf_state_key *)key)];