BR_BPDU_GUARD
nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(flags & BR_BPDU_GUARD)) ||
br_set_port_flag(&set, &clear, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
IFLA_BRPORT_GUARD, BR_BPDU_GUARD) ||