From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net-next 0/6] inet: tcp listener refactoring, part 13 Date: Wed, 18 Mar 2015 22:01:08 -0400 (EDT) Message-ID: <20150318.220108.729418866702247151.davem@davemloft.net> References: <1426712738-23395-1-git-send-email-edumazet@google.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: edumazet@google.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:41124 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751150AbbCSCBM (ORCPT ); Wed, 18 Mar 2015 22:01:12 -0400 In-Reply-To: <1426712738-23395-1-git-send-email-edumazet@google.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Eric Dumazet Date: Wed, 18 Mar 2015 14:05:32 -0700 > inet_hash functions are in a bad state : Too much IPv6/IPv4 copy/pasting. > > Lets refactor a bit. > > Idea is that we do not want to have an equivalent of inet_csk(sk)->icsk_af_ops > for request socks in order to be able to use the right variant. > > In this patch series, I started to let IPv6/IPv4 converge to common helpers. > > Idea is to use ipv6_addr_set_v4mapped() even for AF_INET sockets, so that > we can test > if (sk->sk_family == AF_INET6 && > !ipv6_addr_v4mapped(&sk->sk_v6_daddr)) > to tell if we deal with an IPv6 socket, or IPv4 one, at least in slow paths. > > Ideally, we could save 8 bytes per struct sock_common, if we > alias skc_daddr & skc_rcv_saddr to skc_v6_daddr[3]/skc_v6_rcv_saddr[3]. Looks good, applied, thanks Eric.