Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:36754 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754816Ab2IQPRI (ORCPT ); Mon, 17 Sep 2012 11:17:08 -0400 Message-ID: <1347895064.4975.7.camel@jlt4.sipsolutions.net> (sfid-20120917_171713_380441_698CBF65) Subject: Re: regression: tethering fails in 3.5 with iwlwifi From: Johannes Berg To: Eric Dumazet Cc: artem.bityutskiy@linux.intel.com, linux-wireless@vger.kernel.org Date: Mon, 17 Sep 2012 17:17:44 +0200 In-Reply-To: (sfid-20120917_171545_758986_2167CDC2) References: <1347361823.26457.3.camel@sauron.fi.intel.com> <1DC40B07CD6EC041A66726C271A73AE6195AE9C8@IRSMSX102.ger.corp.intel.com> <1347631355.5263.19.camel@sauron.fi.intel.com> <1347640763.5263.24.camel@sauron.fi.intel.com> <1347892887.7112.9.camel@sauron.fi.intel.com> (sfid-20120917_171545_758986_2167CDC2) Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, 2012-09-17 at 17:15 +0200, Eric Dumazet wrote: > Hi > > I would say some part of the stack assumes a header (I dont know wich > one ?) is pulled in skb->head/data, and thats a bug. > > Always use pskb_may_pull(skb, XXX) to make sure you can access XXX > bytes in skb->data > > It would help if you describe the problem, because I have no history ( > I am not linux-wireless subscriber). No worries, I'll take care of it, I've just not gotten to it yet and for that I apologize. I'll either look at it later today or tomorrow. johannes