IFLA_GRE_FLOWINFO
if (data[IFLA_GRE_FLOWINFO])
parms->flowinfo = nla_get_be32(data[IFLA_GRE_FLOWINFO]);
nla_put_be32(skb, IFLA_GRE_FLOWINFO, p->flowinfo) ||
[IFLA_GRE_FLOWINFO] = { .type = NLA_U32 },