From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gao feng Subject: Re: [PATCH] route:ip_rt_frag_needed always return unzero Date: Wed, 19 Oct 2011 14:36:47 +0800 Message-ID: <4E9E6FFF.80802@cn.fujitsu.com> References: <1318921469-25599-1-git-send-email-gaofeng@cn.fujitsu.com> <1318929797.2657.21.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <4E9E2929.7070701@cn.fujitsu.com> <1318996187.19139.8.camel@edumazet-laptop> <4E9E5E1C.5020603@cn.fujitsu.com> <1319003231.16303.2.camel@edumazet-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: davem@davemloft.net, kuznet@ms2.inr.ac.ru, jmorris@namei.org, netdev@vger.kernel.org To: Eric Dumazet Return-path: Received: from cn.fujitsu.com ([222.73.24.84]:61951 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751102Ab1JSGgT convert rfc822-to-8bit (ORCPT ); Wed, 19 Oct 2011 02:36:19 -0400 In-Reply-To: <1319003231.16303.2.camel@edumazet-laptop> Sender: netdev-owner@vger.kernel.org List-ID: 2011.10.19 13:47, Eric Dumazet wrote: > Le mercredi 19 octobre 2011 =C3=A0 13:20 +0800, Gao feng a =C3=A9crit= : >=20 >> In orig ip_rt_frag_need, >> zero can be return only when pmtu(get from icmp packet) is zero and = peer is NULL. >> in this case,raw_icmp_error will not be call too.this is valid?? >=20 > I dont know, tell me. >=20 > I am afraid you're adding a possible regression here. >=20 > pmtu from icmp_packet is not zero in the common case. >=20 >=20 AS raw socket is special,I think it's should call raw_icmp_error even t= he icmp packet is invalid. if I am right,I think it's another BUG.