From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261483AbULTHyY (ORCPT ); Mon, 20 Dec 2004 02:54:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261474AbULTHuu (ORCPT ); Mon, 20 Dec 2004 02:50:50 -0500 Received: from ylpvm15-ext.prodigy.net ([207.115.57.46]:60547 "EHLO ylpvm15.prodigy.net") by vger.kernel.org with ESMTP id S261435AbULTGoP (ORCPT ); Mon, 20 Dec 2004 01:44:15 -0500 From: David Brownell To: linux-usb-devel@lists.sourceforge.net Subject: Re: [linux-usb-devel] Re: RFC: [2.6 patch] let BLK_DEV_UB depend on EMBEDDED Date: Sun, 19 Dec 2004 22:43:05 -0800 User-Agent: KMail/1.7.1 Cc: Matthew Dharm , "Randy.Dunlap" , Pete Zaitcev , Adrian Bunk , Greg KH , linux-kernel@vger.kernel.org References: <20041220001644.GI21288@stusta.de> <41C65EA0.7020805@osdl.org> <20041220062055.GA22120@one-eyed-alien.net> In-Reply-To: <20041220062055.GA22120@one-eyed-alien.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200412192243.06324.david-b@pacbell.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sunday 19 December 2004 10:20 pm, Matthew Dharm wrote: > > Enabling CONFIG_BLK_DEV_UB actually disables usb-storage from attaching to > certain devices, regardless of what's loaded or not. It also seems to mean significantly slower access (at high speed) for the most standard devices. That doesn't seem like a win, though I suspect fixing it should be as simple as switching over to use the USB scatterlist calls (which usb-storage uses) ... - Davve > I can tell you that this has turned into the single largest source of bug > reports/complaints about usb-storage. Something has to be done. I just > don't know what.