From patchwork Fri Jul 6 11:17:00 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pablo Neira Ayuso X-Patchwork-Id: 169438 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id DD5522C0083 for ; Fri, 6 Jul 2012 21:20:32 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933597Ab2GFLUY (ORCPT ); Fri, 6 Jul 2012 07:20:24 -0400 Received: from mail.us.es ([193.147.175.20]:43463 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933533Ab2GFLTD (ORCPT ); Fri, 6 Jul 2012 07:19:03 -0400 Received: (qmail 1348 invoked from network); 6 Jul 2012 13:19:02 +0200 Received: from unknown (HELO us.es) (192.168.2.12) by us.es with SMTP; 6 Jul 2012 13:19:02 +0200 Received: (qmail 21316 invoked by uid 507); 6 Jul 2012 11:19:01 -0000 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on antivirus2 X-Spam-Level: X-Spam-Status: No, score=-97.2 required=7.5 tests=BAYES_50, RCVD_IN_BRBL_LASTEXT, RCVD_IN_PBL, RCVD_IN_SORBS_DUL, USER_IN_WHITELIST autolearn=disabled version=3.3.1 Received: from 127.0.0.1 by antivirus2 (envelope-from , uid 501) with qmail-scanner-2.08 (clamdscan: 0.97.5/15114. Clear:RC:1(127.0.0.1):. Processed in 0.134036 secs); 06 Jul 2012 11:19:01 -0000 Received: from unknown (HELO antivirus2) (127.0.0.1) by us.es with SMTP; 6 Jul 2012 11:19:01 -0000 Received: from 192.168.1.13 (192.168.1.13) by antivirus2 (F-Secure/fsigk_smtp/407/antivirus2); Fri, 06 Jul 2012 13:19:01 +0200 (CEST) X-Virus-Status: clean(F-Secure/fsigk_smtp/407/antivirus2) Received: (qmail 9762 invoked from network); 6 Jul 2012 13:19:00 +0200 Received: from f052137010.adsl.alicedsl.de (HELO localhost.localdomain) (pneira@us.es@78.52.137.10) by us.es with SMTP; 6 Jul 2012 13:19:00 +0200 From: pablo@netfilter.org To: netfilter-devel@vger.kernel.org Cc: davem@davemloft.net, netdev@vger.kernel.org Subject: [PATCH 10/18] netfilter: nf_ct_sctp: merge sctpv[4, 6]_net_init into sctp_net_init Date: Fri, 6 Jul 2012 13:17:00 +0200 Message-Id: <1341573428-3204-11-git-send-email-pablo@netfilter.org> X-Mailer: git-send-email 1.7.10 In-Reply-To: <1341573428-3204-1-git-send-email-pablo@netfilter.org> References: <1341573428-3204-1-git-send-email-pablo@netfilter.org> Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org From: Gao feng Merge sctpv4_net_init and sctpv6_net_init into sctp_net_init to remove redundant code now that we have the u_int16_t proto parameter. And use nf_proto_net.users to identify if it's the first time we use the nf_proto_net, in that case, we initialize i Signed-off-by: Gao feng Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_proto_sctp.c | 65 +++++++++++-------------------- 1 file changed, 22 insertions(+), 43 deletions(-) diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c index 1e7836c..c746d61 100644 --- a/net/netfilter/nf_conntrack_proto_sctp.c +++ b/net/netfilter/nf_conntrack_proto_sctp.c @@ -707,23 +707,10 @@ static struct ctl_table sctp_compat_sysctl_table[] = { #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */ #endif -static void sctp_init_net_data(struct sctp_net *sn) -{ - int i; -#ifdef CONFIG_SYSCTL - if (!sn->pn.ctl_table) { -#else - if (!sn->pn.users++) { -#endif - for (i = 0; i < SCTP_CONNTRACK_MAX; i++) - sn->timeouts[i] = sctp_timeouts[i]; - } -} - -static int sctp_kmemdup_sysctl_table(struct nf_proto_net *pn) +static int sctp_kmemdup_sysctl_table(struct nf_proto_net *pn, + struct sctp_net *sn) { #ifdef CONFIG_SYSCTL - struct sctp_net *sn = (struct sctp_net *)pn; if (pn->ctl_table) return 0; @@ -744,11 +731,11 @@ static int sctp_kmemdup_sysctl_table(struct nf_proto_net *pn) return 0; } -static int sctp_kmemdup_compat_sysctl_table(struct nf_proto_net *pn) +static int sctp_kmemdup_compat_sysctl_table(struct nf_proto_net *pn, + struct sctp_net *sn) { #ifdef CONFIG_SYSCTL #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT - struct sctp_net *sn = (struct sctp_net *)pn; pn->ctl_compat_table = kmemdup(sctp_compat_sysctl_table, sizeof(sctp_compat_sysctl_table), GFP_KERNEL); @@ -767,41 +754,33 @@ static int sctp_kmemdup_compat_sysctl_table(struct nf_proto_net *pn) return 0; } -static int sctpv4_init_net(struct net *net, u_int16_t proto) +static int sctp_init_net(struct net *net, u_int16_t proto) { int ret; struct sctp_net *sn = sctp_pernet(net); - struct nf_proto_net *pn = (struct nf_proto_net *)sn; + struct nf_proto_net *pn = &sn->pn; - sctp_init_net_data(sn); + if (!pn->users) { + int i; - ret = sctp_kmemdup_compat_sysctl_table(pn); - if (ret < 0) - return ret; + for (i = 0; i < SCTP_CONNTRACK_MAX; i++) + sn->timeouts[i] = sctp_timeouts[i]; + } - ret = sctp_kmemdup_sysctl_table(pn); + if (proto == AF_INET) { + ret = sctp_kmemdup_compat_sysctl_table(pn, sn); + if (ret < 0) + return ret; -#ifdef CONFIG_SYSCTL -#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT - if (ret < 0) { + ret = sctp_kmemdup_sysctl_table(pn, sn); + if (ret < 0) + nf_ct_kfree_compat_sysctl_table(pn); + } else + ret = sctp_kmemdup_sysctl_table(pn, sn); - kfree(pn->ctl_compat_table); - pn->ctl_compat_table = NULL; - } -#endif -#endif return ret; } -static int sctpv6_init_net(struct net *net, u_int16_t proto) -{ - struct sctp_net *sn = sctp_pernet(net); - struct nf_proto_net *pn = (struct nf_proto_net *)sn; - - sctp_init_net_data(sn); - return sctp_kmemdup_sysctl_table(pn); -} - static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = { .l3proto = PF_INET, .l4proto = IPPROTO_SCTP, @@ -833,7 +812,7 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = { }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ .net_id = &sctp_net_id, - .init_net = sctpv4_init_net, + .init_net = sctp_init_net, }; static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = { @@ -867,7 +846,7 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = { #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ #endif .net_id = &sctp_net_id, - .init_net = sctpv6_init_net, + .init_net = sctp_init_net, }; static int sctp_net_init(struct net *net)