calc_y
calc_y(*key_y, p[offset], p[moffset]);
calc_y(tmp_y_s, *(u16 *)(&p[offset]), *(u16 *)(&p[moffset]));
calc_y(tmp_y_l, *(u32 *)(&p[offset]), *(u32 *)(&p[moffset]));
calc_y(key_y[ETH_ALEN - 1 - i], p[offset + i],
calc_y(tmp_y_l, *(u32 *)(&p[offset + ip_offset]),
calc_y(tmp_y, meta_data, 0xFFFFFFFF);