From patchwork Fri Oct 19 19:45:28 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Ahern X-Patchwork-Id: 987008 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=kernel.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="UVMIArvG"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 42cGcn1Pdbz9vZs for ; Sat, 20 Oct 2018 06:46:17 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728074AbeJTDxn (ORCPT ); Fri, 19 Oct 2018 23:53:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:38744 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728032AbeJTDxm (ORCPT ); Fri, 19 Oct 2018 23:53:42 -0400 Received: from kenny.it.cumulusnetworks.com. (fw.cumulusnetworks.com [216.129.126.126]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6A38B214AB; Fri, 19 Oct 2018 19:46:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1539978372; bh=Onvj2VaeL5tpgNV1ifkFlW4gqNCATaE592yc42YgkoQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UVMIArvGQo1I3fHXtle+RWB3eWVNBPReN/Oy059Xl4v8ws6Asj+UZptY+18PfD4sD qZI8G17h8pR6fT+jjlQwHE5gNlShNcY8VGApTgkAx89xNL+3mEs9IlzQ2kIlXWvyRM LpX3K9g8/ls4jA8eqN9A7Xetm2qLmT6DV5R1BeW8= From: David Ahern To: netdev@vger.kernel.org Cc: davem@davemloft.net, David Ahern Subject: [PATCH net-next 2/4] net/ipv6: Remove ip_idx arg to in6_dump_addrs Date: Fri, 19 Oct 2018 12:45:28 -0700 Message-Id: <20181019194530.3590-3-dsahern@kernel.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20181019194530.3590-1-dsahern@kernel.org> References: <20181019194530.3590-1-dsahern@kernel.org> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: David Ahern ip_idx is always 0 going into in6_dump_addrs; it is passed as a pointer to save the last good index into cb. Since cb is already argument to in6_dump_addrs, just save the value there. Signed-off-by: David Ahern --- net/ipv6/addrconf.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index e39c284e2954..6b659846ff8a 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -4955,14 +4955,13 @@ static int inet6_fill_ifacaddr(struct sk_buff *skb, struct ifacaddr6 *ifaca, /* called with rcu_read_lock() */ static int in6_dump_addrs(struct inet6_dev *idev, struct sk_buff *skb, - struct netlink_callback *cb, - int s_ip_idx, int *p_ip_idx, + struct netlink_callback *cb, int s_ip_idx, struct inet6_fill_args *fillargs) { struct ifmcaddr6 *ifmca; struct ifacaddr6 *ifaca; + int ip_idx = 0; int err = 1; - int ip_idx = *p_ip_idx; read_lock_bh(&idev->lock); switch (fillargs->type) { @@ -5012,7 +5011,7 @@ static int in6_dump_addrs(struct inet6_dev *idev, struct sk_buff *skb, break; } read_unlock_bh(&idev->lock); - *p_ip_idx = ip_idx; + cb->args[2] = ip_idx; return err; } @@ -5081,16 +5080,15 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb, }; struct net *net = sock_net(skb->sk); struct net *tgt_net = net; + int idx, s_idx, s_ip_idx; int h, s_h; - int idx, ip_idx; - int s_idx, s_ip_idx; struct net_device *dev; struct inet6_dev *idev; struct hlist_head *head; s_h = cb->args[0]; s_idx = idx = cb->args[1]; - s_ip_idx = ip_idx = cb->args[2]; + s_ip_idx = cb->args[2]; if (cb->strict_check) { int err; @@ -5111,12 +5109,11 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb, goto cont; if (h > s_h || idx > s_idx) s_ip_idx = 0; - ip_idx = 0; idev = __in6_dev_get(dev); if (!idev) goto cont; - if (in6_dump_addrs(idev, skb, cb, s_ip_idx, &ip_idx, + if (in6_dump_addrs(idev, skb, cb, s_ip_idx, &fillargs) < 0) goto done; cont: @@ -5127,7 +5124,6 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb, rcu_read_unlock(); cb->args[0] = h; cb->args[1] = idx; - cb->args[2] = ip_idx; if (fillargs.netnsid >= 0) put_net(tgt_net);