MAX_PHBS
phb_id = (int)(prop & (MAX_PHBS - 1));
phb_id = find_first_zero_bit(phb_bitmap, MAX_PHBS);
BUG_ON(phb_id >= MAX_PHBS);
if (phb->global_number < MAX_PHBS)
static DECLARE_BITMAP(phb_bitmap, MAX_PHBS);