NFTA_CHAIN_COUNTERS
[NFTA_CHAIN_COUNTERS] = { .type = NLA_NESTED },
nest = nla_nest_start_noflag(skb, NFTA_CHAIN_COUNTERS);
if (nla[NFTA_CHAIN_COUNTERS]) {
stats = nft_stats_alloc(nla[NFTA_CHAIN_COUNTERS]);
if (nla[NFTA_CHAIN_COUNTERS]) {
stats = nft_stats_alloc(nla[NFTA_CHAIN_COUNTERS]);