NET_SHAPER_A_METRIC
nla_put_u32(msg, NET_SHAPER_A_METRIC, cur.metric)) ||
if (tb[NET_SHAPER_A_METRIC])
shaper->metric = nla_get_u32(tb[NET_SHAPER_A_METRIC]);
[NET_SHAPER_A_METRIC] = NLA_POLICY_MAX(NLA_U32, 1),
[NET_SHAPER_A_METRIC] = NLA_POLICY_MAX(NLA_U32, 1),