Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932448AbWHaUy2 (ORCPT ); Thu, 31 Aug 2006 16:54:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932450AbWHaUy1 (ORCPT ); Thu, 31 Aug 2006 16:54:27 -0400 Received: from zrtps0kp.nortel.com ([47.140.192.56]:37802 "EHLO zrtps0kp.nortel.com") by vger.kernel.org with ESMTP id S932448AbWHaUy1 (ORCPT ); Thu, 31 Aug 2006 16:54:27 -0400 Message-ID: <44F74C66.7000705@nortel.com> Date: Thu, 31 Aug 2006 14:53:58 -0600 From: "Chris Friesen" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.7) Gecko/20050427 Red Hat/1.7.7-1.1.3.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Lee Revell CC: Xavier Bestel , Greg KH , linux-kernel@vger.kernel.org, Thomas Gleixner Subject: Re: [RFC] Simple userspace interface for PCI drivers References: <20060830062338.GA10285@kroah.com> <1157013027.7566.515.camel@capoeira> <1157056749.4386.137.camel@mindpipe> In-Reply-To: <1157056749.4386.137.camel@mindpipe> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 31 Aug 2006 20:54:01.0825 (UTC) FILETIME=[96801D10:01C6CD3F] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 669 Lines: 18 Lee Revell wrote: > Why? There's no technical or legal requirement for userspace drivers to > be GPLed. I could see a benefit to tainting the kernel once userspace starts poking at the hardware directly. That way at least we'd know that a crash might be due to userspace doing bad things. For instance, consider the case where userspace misprograms a DMA engine, which starts overwriting random kernel memory. Chris - 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/