From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6AF37C35247 for ; Mon, 3 Feb 2020 16:33:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3D2292087E for ; Mon, 3 Feb 2020 16:33:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580747636; bh=UwGbtDRfN9KysfXxiqJ16+rixGyRwG8BonN8x2eCj3k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=wRvCSB6eTosHaNOLbgvQktLDbhInsRiwdzC2uaF25Wn2NGcK1IdzoLdQNjPwvsyF7 jF3Y6rnzDwcDrxyARahUMfSuse+pGmLjRYomhf9kKnKCZPkoVZiF0vmo4hByGw6bVt mEME7gg5SVtKB/9O8eS3kbnIzN+2kQhvp8156xgI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730691AbgBCQdz (ORCPT ); Mon, 3 Feb 2020 11:33:55 -0500 Received: from mail.kernel.org ([198.145.29.99]:48004 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730677AbgBCQdw (ORCPT ); Mon, 3 Feb 2020 11:33:52 -0500 Received: from localhost (unknown [104.132.45.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C345C2087E; Mon, 3 Feb 2020 16:33:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580747632; bh=UwGbtDRfN9KysfXxiqJ16+rixGyRwG8BonN8x2eCj3k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LJdSt+rjEYgqQWOGkzZ1Zqrlx9wH2HiVNnYhuEKPrv6f3FuPhuMZBIsZ8kmsrrqxI LRA3/JsAZTbzdLisYXU042DCGL4HOrAn+gJZ5tE8Ldan5TgTRLP3wnMajWuh1lCScZ xwQloUaE8ftwUO495Ql/pA5Kf+0Ug5jr0ggDxODg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Xu Wang , Steffen Klassert , Sasha Levin Subject: [PATCH 4.19 56/70] xfrm: interface: do not confirm neighbor when do pmtu update Date: Mon, 3 Feb 2020 16:20:08 +0000 Message-Id: <20200203161920.389011463@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200203161912.158976871@linuxfoundation.org> References: <20200203161912.158976871@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Xu Wang [ Upstream commit 8aaea2b0428b6aad7c7e22d3fddc31a78bb1d724 ] When do IPv6 tunnel PMTU update and calls __ip6_rt_update_pmtu() in the end, we should not call dst_confirm_neigh() as there is no two-way communication. Signed-off-by: Xu Wang Signed-off-by: Steffen Klassert Signed-off-by: Sasha Levin --- net/xfrm/xfrm_interface.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c index 20565a4742112..317fe9c92932b 100644 --- a/net/xfrm/xfrm_interface.c +++ b/net/xfrm/xfrm_interface.c @@ -294,7 +294,7 @@ xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl) mtu = dst_mtu(dst); if (!skb->ignore_df && skb->len > mtu) { - skb_dst_update_pmtu(skb, mtu); + skb_dst_update_pmtu_no_confirm(skb, mtu); if (skb->protocol == htons(ETH_P_IPV6)) { if (mtu < IPV6_MIN_MTU) -- 2.20.1