FLOW_LINK_DST
flow_desc.fd_mask = FLOW_LINK_DST;
flow_desc.fd_mask = FLOW_LINK_DST;
ASSERT(flow_desc.fd_mask & FLOW_LINK_DST);
mac_flow_tab_create(&flow_l2_ops, FLOW_LINK_DST | FLOW_LINK_VID,
if ((fd->fd_mask & FLOW_LINK_DST) == 0 || fd->fd_mac_len == 0)