BR_MRP_TLV_HEADER_RING_TEST
br_mrp_skb_tlv(skb, BR_MRP_TLV_HEADER_RING_TEST, sizeof(*hdr));
if (hdr->type == BR_MRP_TLV_HEADER_RING_TEST ||
if (hdr->type != BR_MRP_TLV_HEADER_RING_TEST)