From patchwork Sat Aug 17 11:22:11 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikolay Aleksandrov X-Patchwork-Id: 1148707 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=cumulusnetworks.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=cumulusnetworks.com header.i=@cumulusnetworks.com header.b="S/xvscTk"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 469d8C1D7rz9sDB for ; Sat, 17 Aug 2019 21:22:35 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726075AbfHQLWb (ORCPT ); Sat, 17 Aug 2019 07:22:31 -0400 Received: from mail-wr1-f67.google.com ([209.85.221.67]:37831 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725832AbfHQLWa (ORCPT ); Sat, 17 Aug 2019 07:22:30 -0400 Received: by mail-wr1-f67.google.com with SMTP id z11so3985931wrt.4 for ; Sat, 17 Aug 2019 04:22:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cumulusnetworks.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=EW+6AvSLzUYJxeji2mVd2Q1VYO3NHO/LYR1JxyZ6kvU=; b=S/xvscTkR2xIOirXThIGvGDBdnu2fBqMGTaoVdqnO3YoDG8zz38QeHOopjQLiDFe8Z XNulE2hhqAAAUbwfMrhVxxqTFiPT+TDbU719EeMbIrGbxFLmG1qIyv/i1UoK/xbK9tfn vtQ4HAoBwHBIDZIK1q47yv0KHbA731GYjQNQY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=EW+6AvSLzUYJxeji2mVd2Q1VYO3NHO/LYR1JxyZ6kvU=; b=MkdaHskW2vnxbJnwbS6i+F8Lf/Sbv2QT3Luz/ydXA6Qq1v7CNvAPaMk/jfiz0tFglf VAYd4Fr8htcDXZhRCPArQRkEbIhiPE5RgNNsTm/5byjaBi3Z89hf5InMBgY566GEI8pI GCDqjQEpd5eg09tdY/XQ1AINjXdkfEf58zdFiohpshTdWxjLHz40UXY0a2PPWfCRkj6F 1IvMU8Odm6eNtCerIz89HuKggksiQ9bcD0ciZb1k4Kp9Sm3hmHK0+u97gTsPwCbTcOnE GD9ramH2AwHK+pk84WNSkhbM/XCQJXi5LvIkIqY3ecix7iUkxEBKxMtwwuM1J2GJ+Btf 1Dhg== X-Gm-Message-State: APjAAAWorHY6HuhBfjIV28k7GFe2+6UKy67uiVFqlKfqQekp/DaqF4z6 PqqGtNIcXX6iF14mJGxBFv+9OzYv+W1YtQ== X-Google-Smtp-Source: APXvYqzVLtyPHVyhZRxnjN0aSl+FrD0ky1mzYbmx1jkUmpk22BBmlDF8l9D6SJmf5OTDCVW8pIKKOg== X-Received: by 2002:a05:6000:1189:: with SMTP id g9mr17098474wrx.51.1566040948243; Sat, 17 Aug 2019 04:22:28 -0700 (PDT) Received: from debil.localdomain (84-238-136-197.ip.btc-net.bg. [84.238.136.197]) by smtp.gmail.com with ESMTPSA id o14sm13900244wrg.64.2019.08.17.04.22.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Aug 2019 04:22:27 -0700 (PDT) From: Nikolay Aleksandrov To: netdev@vger.kernel.org Cc: davem@davemloft.net, roopa@cumulusnetworks.com, bridge@lists.linux-foundation.org, Nikolay Aleksandrov Subject: [PATCH net-next v3 2/4] net: bridge: mdb: factor out mdb filling Date: Sat, 17 Aug 2019 14:22:11 +0300 Message-Id: <20190817112213.27097-3-nikolay@cumulusnetworks.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190817112213.27097-1-nikolay@cumulusnetworks.com> References: <20190816.130417.1610388599335442981.davem@davemloft.net> <20190817112213.27097-1-nikolay@cumulusnetworks.com> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org We have to factor out the mdb fill portion in order to re-use it later for the bridge mdb entries. No functional changes intended. Signed-off-by: Nikolay Aleksandrov --- net/bridge/br_mdb.c | 68 ++++++++++++++++++++++++--------------------- 1 file changed, 37 insertions(+), 31 deletions(-) diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c index ee6208c6d946..77730983097e 100644 --- a/net/bridge/br_mdb.c +++ b/net/bridge/br_mdb.c @@ -77,6 +77,40 @@ static void __mdb_entry_to_br_ip(struct br_mdb_entry *entry, struct br_ip *ip) #endif } +static int __mdb_fill_info(struct sk_buff *skb, + struct net_bridge_port_group *p) +{ + struct nlattr *nest_ent; + struct br_mdb_entry e; + + memset(&e, 0, sizeof(e)); + __mdb_entry_fill_flags(&e, p->flags); + e.ifindex = p->port->dev->ifindex; + e.vid = p->addr.vid; + if (p->addr.proto == htons(ETH_P_IP)) + e.addr.u.ip4 = p->addr.u.ip4; +#if IS_ENABLED(CONFIG_IPV6) + if (p->addr.proto == htons(ETH_P_IPV6)) + e.addr.u.ip6 = p->addr.u.ip6; +#endif + e.addr.proto = p->addr.proto; + nest_ent = nla_nest_start_noflag(skb, + MDBA_MDB_ENTRY_INFO); + if (!nest_ent) + return -EMSGSIZE; + + if (nla_put_nohdr(skb, sizeof(e), &e) || + nla_put_u32(skb, + MDBA_MDB_EATTR_TIMER, + br_timer_value(&p->timer))) { + nla_nest_cancel(skb, nest_ent); + return -EMSGSIZE; + } + nla_nest_end(skb, nest_ent); + + return 0; +} + static int br_mdb_fill_info(struct sk_buff *skb, struct netlink_callback *cb, struct net_device *dev) { @@ -95,7 +129,6 @@ static int br_mdb_fill_info(struct sk_buff *skb, struct netlink_callback *cb, hlist_for_each_entry_rcu(mp, &br->mdb_list, mdb_node) { struct net_bridge_port_group *p; struct net_bridge_port_group __rcu **pp; - struct net_bridge_port *port; if (idx < s_idx) goto skip; @@ -108,41 +141,14 @@ static int br_mdb_fill_info(struct sk_buff *skb, struct netlink_callback *cb, for (pp = &mp->ports; (p = rcu_dereference(*pp)) != NULL; pp = &p->next) { - struct nlattr *nest_ent; - struct br_mdb_entry e; - - port = p->port; - if (!port) + if (!p->port) continue; - memset(&e, 0, sizeof(e)); - e.ifindex = port->dev->ifindex; - e.vid = p->addr.vid; - __mdb_entry_fill_flags(&e, p->flags); - if (p->addr.proto == htons(ETH_P_IP)) - e.addr.u.ip4 = p->addr.u.ip4; -#if IS_ENABLED(CONFIG_IPV6) - if (p->addr.proto == htons(ETH_P_IPV6)) - e.addr.u.ip6 = p->addr.u.ip6; -#endif - e.addr.proto = p->addr.proto; - nest_ent = nla_nest_start_noflag(skb, - MDBA_MDB_ENTRY_INFO); - if (!nest_ent) { - nla_nest_cancel(skb, nest2); - err = -EMSGSIZE; - goto out; - } - if (nla_put_nohdr(skb, sizeof(e), &e) || - nla_put_u32(skb, - MDBA_MDB_EATTR_TIMER, - br_timer_value(&p->timer))) { - nla_nest_cancel(skb, nest_ent); + err = __mdb_fill_info(skb, p); + if (err) { nla_nest_cancel(skb, nest2); - err = -EMSGSIZE; goto out; } - nla_nest_end(skb, nest_ent); } nla_nest_end(skb, nest2); skip: