IPVS_CMD_ATTR_MAX
static const struct nla_policy ip_vs_cmd_policy[IPVS_CMD_ATTR_MAX + 1] = {
struct nlattr *attrs[IPVS_CMD_ATTR_MAX + 1];
if (nlmsg_parse_deprecated(cb->nlh, GENL_HDRLEN, attrs, IPVS_CMD_ATTR_MAX, ip_vs_cmd_policy, cb->extack))
.maxattr = IPVS_CMD_ATTR_MAX,