NFTA_SET_GC_INTERVAL
[NFTA_SET_GC_INTERVAL] = { .type = NLA_U32 },
nla_put_be32(skb, NFTA_SET_GC_INTERVAL, htonl(gc_int)))
if (nla[NFTA_SET_GC_INTERVAL] != NULL) {
desc.gc_int = ntohl(nla_get_be32(nla[NFTA_SET_GC_INTERVAL]));