IFLA_HSR_SLAVE1
if (nla_put_u32(skb, IFLA_HSR_SLAVE1, port->dev->ifindex))
[IFLA_HSR_SLAVE1] = { .type = NLA_U32 },
if (!data[IFLA_HSR_SLAVE1]) {
nla_get_u32(data[IFLA_HSR_SLAVE1]));