Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934697Ab0BZANW (ORCPT ); Thu, 25 Feb 2010 19:13:22 -0500 Received: from kroah.org ([198.145.64.141]:43471 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934593Ab0BZANV (ORCPT ); Thu, 25 Feb 2010 19:13:21 -0500 Date: Thu, 25 Feb 2010 15:25:29 -0800 From: Greg KH To: Robert Hancock Cc: Tejun Heo , Oliver Neukum , Yuhong Bao , david-b@pacbell.net, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: Re: [PATCH 2.6.34] ehci-hcd: add option to enable 64-bit DMA support Message-ID: <20100225232528.GA24155@kroah.com> References: <4B7CAF95.6020306@gmail.com> <4B85EE88.5050506@kernel.org> <201002250503.09327.oliver@neukum.org> <4B8609CE.5000705@kernel.org> <20100225161413.GA1229@kroah.com> <51f3faa71002251515k51354eb6y3e2cfd1558dba2f1@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <51f3faa71002251515k51354eb6y3e2cfd1558dba2f1@mail.gmail.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 795 Lines: 21 On Thu, Feb 25, 2010 at 05:15:49PM -0600, Robert Hancock wrote: > > For now, I'd like to not enable this, given the huge risks and no known > > benifit. > > "Huge risks" is likely a bit melodramatic No it is not. This has the ability to break USB functionality that currently works just fine for a user. That's not acceptable. And yes, we can fix things after-the-fact with blacklists, but as Tejun so aptly described, it is a major pain to do so, and lots of users just get frustrated and never tell us that problems happen. thanks, greg k-h -- 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/