Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754514AbbEUPES (ORCPT ); Thu, 21 May 2015 11:04:18 -0400 Received: from cantor2.suse.de ([195.135.220.15]:54299 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751702AbbEUPEQ (ORCPT ); Thu, 21 May 2015 11:04:16 -0400 Date: Thu, 21 May 2015 17:04:13 +0200 Message-ID: From: Takashi Iwai To: Alan Stern Cc: Marcel Holtmann , Laura Abbott , Oliver Neukum , Ming Lei , "David S. Miller" , Laura Abbott , Johan Hedberg , "Rafael J. Wysocki" , "Gustavo F. Padovan" , "bluez mailin list (linux-bluetooth@vger.kernel.org)" , Linux Kernel Mailing List , USB list , netdev Subject: Re: [RESEND][PATCH] Bluetooth: Make request workqueue freezable In-Reply-To: References: User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/24.5 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1003 Lines: 28 At Thu, 21 May 2015 10:18:08 -0400 (EDT), Alan Stern wrote: > > On Thu, 21 May 2015, Takashi Iwai wrote: > > > Then avoiding the failed firmware is no solution, indeed. > > If it's a new probe, it should be never executed during resume. > > Can you expand this comment? What's wrong with probing during resume? Well, if the probe requires the access to a user-space file, it can't be done during resume. That's the very problem we're seeing now. The firmware loader can't help much alone if it's a new device object. > The USB stack does carry out probes during resume under certain > circumstances. A driver lacking a reset_resume callback is one of > those circumstances. So, having a proper reset_resume in btusb would help in the end? Takashi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/