PNEIGH_HASHMASK
phsize = (PNEIGH_HASHMASK + 1) * sizeof(struct pneigh_entry *);
for (h = s_h; h <= PNEIGH_HASHMASK; h++) {
for (bucket = 0; bucket <= PNEIGH_HASHMASK; bucket++) {
if (++state->bucket > PNEIGH_HASHMASK)
hash_val &= PNEIGH_HASHMASK;
for (h = 0; h <= PNEIGH_HASHMASK; h++) {