DEVLINK_PORT_FUNCTION_ATTR_MAX
static const struct nla_policy devlink_function_nl_policy[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1] = {
struct nlattr *tb[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1];
err = nla_parse_nested(tb, DEVLINK_PORT_FUNCTION_ATTR_MAX, attr,