From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com ([143.182.124.37]:9919 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752539Ab2GaAWP (ORCPT ); Mon, 30 Jul 2012 20:22:15 -0400 Message-ID: <1343694132.2591.4.camel@yhuang-dev> Subject: Re: bisected regression, v3.5 -> next-20120724: PCI PM causes USB hotplug failure From: Huang Ying To: =?ISO-8859-1?Q?Bj=F8rn?= Mork Cc: huang ying , "Rafael J. Wysocki" , Zheng Yan , Bjorn Helgaas , linux-pci@vger.kernel.org, linux-usb@vger.kernel.org, Alan Stern Date: Tue, 31 Jul 2012 08:22:12 +0800 In-Reply-To: <873949p4p8.fsf@nemi.mork.no> References: <87r4s0opck.fsf@nemi.mork.no> <87pq7ko532.fsf@nemi.mork.no> <1343190864.10311.26.camel@yhuang-dev> <87k3xskvqq.fsf@nemi.mork.no> <874now7xi8.fsf@nemi.mork.no> <1343292851.3874.12.camel@yhuang-dev> <87k3xqyfm3.fsf@nemi.mork.no> <1343367309.3874.21.camel@yhuang-dev> <87sjcd4lgs.fsf@nemi.mork.no> <1343618131.3874.37.camel@yhuang-dev> <871ujtr7rz.fsf@nemi.mork.no> <873949p4p8.fsf@nemi.mork.no> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org List-ID: On Mon, 2012-07-30 at 18:57 +0200, Bjørn Mork wrote: > huang ying writes: > > > On Mon, Jul 30, 2012 at 4:08 PM, Bjørn Mork wrote: > >> Huang Ying writes: > >> > >>> Do you have time to test the following patch to fix the lspci issue? > >>> > >>> Subject: [BUGFIX] PCI/PM: Keep parent bridge active when read/write config reg > >> > >> > >> Sure. But keep this going and I will file a request for modular build > >> of the PCI subsystem :-) > > > > Why? All not so old PC hardware has PCI/PCIe devices. > > So that I didn't have to reboot all the time to test your new patches... > > It was a (bad) joke. I don't really think my laptop would work all that > well without PCI. Haha, understood now. Best Regards, Huang Ying