NFTA_TUNNEL_KEY_ERSPAN_MAX
static const struct nla_policy nft_tunnel_opts_erspan_policy[NFTA_TUNNEL_KEY_ERSPAN_MAX + 1] = {
struct nlattr *tb[NFTA_TUNNEL_KEY_ERSPAN_MAX + 1];
err = nla_parse_nested_deprecated(tb, NFTA_TUNNEL_KEY_ERSPAN_MAX,