From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756106AbXD1UMD (ORCPT ); Sat, 28 Apr 2007 16:12:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1031201AbXD1UMD (ORCPT ); Sat, 28 Apr 2007 16:12:03 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:58304 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1756106AbXD1UMB (ORCPT ); Sat, 28 Apr 2007 16:12:01 -0400 Date: Sat, 28 Apr 2007 21:15:15 +0100 From: Alan Cox To: =?UTF-8?B?SGFucy1Kw7xyZ2Vu?= Koch Cc: Bill Davidsen , Greg KH , Linus Torvalds , Andrew Morton , linux-kernel@vger.kernel.org, tglx@linutronix.de, Benedikt Spranger Subject: Re: [GIT PATCH] UIO patches for 2.6.21 Message-ID: <20070428211515.4e9fd8c5@the-village.bc.nu> In-Reply-To: <200704282203.31141.hjk@linutronix.de> References: <20070427224957.GA17967@kroah.com> <4633A6D7.3030806@tmr.com> <200704282203.31141.hjk@linutronix.de> X-Mailer: Claws Mail 2.9.1 (GTK+ 2.10.8; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > > I have a political question, if I have a user space driver, is my kernel > > tainted or not? > > Surely not. By using the kernel's userspace interface, you create no > "derived work" of the kernel. See COPYING in the root directory of the > kernel sources for details. That only covers normal system calls - but I don't think thats what is relevant, taints are for debug assistance not politics. I think we should have a taint flag for UIO type drivers. Not for any licensing or political reason but for the simple fact it means that there may be other complexities to debugging - and not the same one as a binary module. Probably we want the same marker for mmap /dev/mem too. Alan