WB_MIN_FRAMELEN
if (total_len < WB_MIN_FRAMELEN) {
f->wb_ctl = WB_MIN_FRAMELEN - total_len;
(WB_RXBYTES(cur_rx->wb_ptr->wb_status) < WB_MIN_FRAMELEN) ||
u_int8_t wb_pad[WB_MIN_FRAMELEN];