From patchwork Mon Sep 4 06:17:28 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Haishuang Yan X-Patchwork-Id: 809525 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@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=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3xm05R2MSnz9s7c for ; Mon, 4 Sep 2017 16:18:03 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753189AbdIDGRs (ORCPT ); Mon, 4 Sep 2017 02:17:48 -0400 Received: from cmccmta2.chinamobile.com ([221.176.66.80]:12312 "EHLO cmccmta2.chinamobile.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752633AbdIDGRp (ORCPT ); Mon, 4 Sep 2017 02:17:45 -0400 Received: from spf.mail.chinamobile.com (unknown[172.16.121.3]) by rmmx-syy-dmz-app08-12008 (RichMail) with SMTP id 2ee859acf004507-475d7; Mon, 04 Sep 2017 14:17:41 +0800 (CST) X-RM-TRANSID: 2ee859acf004507-475d7 X-RM-SPAM-FLAG: 00000000 Received: from localhost (unknown[223.105.0.240]) by rmsmtp-syy-appsvr02-12002 (RichMail) with SMTP id 2ee259acf004ef6-5066e; Mon, 04 Sep 2017 14:17:41 +0800 (CST) X-RM-TRANSID: 2ee259acf004ef6-5066e From: Haishuang Yan To: "David S. Miller" , Alexey Kuznetsov , Hideaki YOSHIFUJI Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Haishuang Yan Subject: [PATCH 2/2] ip6_tunnel: fix setting hop_limit value for ipv6 tunnel Date: Mon, 4 Sep 2017 14:17:28 +0800 Message-Id: <1504505848-3331-2-git-send-email-yanhaishuang@cmss.chinamobile.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1504505848-3331-1-git-send-email-yanhaishuang@cmss.chinamobile.com> References: <1504505848-3331-1-git-send-email-yanhaishuang@cmss.chinamobile.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Similar to vxlan/geneve tunnel, if hop_limit is zero, it should fall back to ip6_dst_hoplimt(). Signed-off-by: Haishuang Yan --- net/ipv6/ip6_tunnel.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 3a0ba2a..10a693a 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -1184,6 +1184,7 @@ int ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev, __u8 dsfield, init_tel_txopt(&opt, encap_limit); ipv6_push_frag_opts(skb, &opt.ops, &proto); } + hop_limit = hop_limit ? : ip6_dst_hoplimit(dst); /* Calculate max headroom for all the headers and adjust * needed_headroom if necessary.