NFTA_XFRM_SPNUM
[NFTA_XFRM_SPNUM] = NLA_POLICY_MAX(NLA_BE32, XFRM_MAX_DEPTH - 1),
if (nla_put_be32(skb, NFTA_XFRM_SPNUM, htonl(priv->spnum)))
if (tb[NFTA_XFRM_SPNUM])
spnum = ntohl(nla_get_be32(tb[NFTA_XFRM_SPNUM]));