Re: [nf-next PATCH v3 1/3] netfilter: nf_tables: Open-code audit log call in nf_tables_getrule()

[Florian Westphal <fw@xxxxxxxxx>]

> -	return nfnetlink_unicast(skb2, net, NETLINK_CB(skb).portid);
> +	tablename = nla_strdup(nla[NFTA_RULE_TABLE], GFP_ATOMIC);
> +	buf = kasprintf(GFP_ATOMIC, "%s:%u", tablename, nft_net->base_seq);

You can use %.*s:%u", nla_len(nla[NFTA_RULE_TABLE]), nla_data(nla[NFTA_RULE_TABLE) ...
here to avoid the extra strdup.