IFLA_BRIDGE_MRP_PORT_ROLE_MAX
struct nlattr *tb[IFLA_BRIDGE_MRP_PORT_ROLE_MAX + 1];
err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_PORT_ROLE_MAX, attr,
br_mrp_port_role_policy[IFLA_BRIDGE_MRP_PORT_ROLE_MAX + 1] = {