cpqhp_find_slot
slot = cpqhp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
cpqhp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
p_slot = cpqhp_find_slot(ctrl, hp_slot + (readb(ctrl->hpc_reg + SLOT_MASK) >> 4));
p_slot = cpqhp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
p_slot = cpqhp_find_slot(ctrl, device);
p_slot = cpqhp_find_slot(ctrl, device);