From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752926AbaAXOje (ORCPT ); Fri, 24 Jan 2014 09:39:34 -0500 Received: from lxorguk.ukuu.org.uk ([81.2.110.251]:34990 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752496AbaAXOjc (ORCPT ); Fri, 24 Jan 2014 09:39:32 -0500 Date: Fri, 24 Jan 2014 14:38:59 +0000 From: Alan Cox To: Mark Brown Cc: Tomasz Figa , Tushar Behera , Russell King - ARM Linux , lkml , linux-serial , linux-samsung-soc , jslaby , Greg Kroah-Hartman , Ben Dooks Subject: Re: [PATCH 1/2] serial: samsung: Move uart_register_driver call to device probe Message-ID: <20140124143859.70e0e610@www.etchedpixels.co.uk> In-Reply-To: <20140124120309.GU11727@sirena.org.uk> References: <1390208555-27770-2-git-send-email-tushar.behera@linaro.org> <20140120100530.GY15937@n2100.arm.linux.org.uk> <20140123180423.1a62611a@www.etchedpixels.co.uk> <20140123184022.GC11727@sirena.org.uk> <52E163DC.1090002@samsung.com> <20140123193633.GG11727@sirena.org.uk> <20140123195144.2d3aa44d@www.etchedpixels.co.uk> <20140123200509.GO11727@sirena.org.uk> <20140123213321.372ce82b@www.etchedpixels.co.uk> <20140124120309.GU11727@sirena.org.uk> X-Mailer: Claws Mail 3.8.1 (GTK+ 2.24.20; x86_64-pc-linux-gnu) Face: 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 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 24 Jan 2014 12:03:09 +0000 Mark Brown wrote: > On Thu, Jan 23, 2014 at 09:33:21PM +0000, Alan Cox wrote: > > Mark Brown wrote: > > > > I don't see how we can meaningfully test this on a platform - the kernel > > > would have to be pretty demented to care, it's userspace that cares and > > > that's not really tied to individual serial drivers but is where we > > > mainly need coverage. > > > Which is why I think we want to enable it gradually and platform by > > platform as that platform or arch maintainer judges it appropriate given > > their knowledge of their platform(s). > > I don't see how that follows? For the most part architecture > maintainers aren't going to be able to say too much about which > userspaces are being run on their platforms if the architecture > has any kind of widespread use. For most architectures I suspect that they do have a pretty good idea. ARM is a bit different but I imagine the various platform specific maintainers are the ones who have that knowledge Alan