Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752595AbcD2SN3 (ORCPT ); Fri, 29 Apr 2016 14:13:29 -0400 Received: from pandora.arm.linux.org.uk ([78.32.30.218]:59282 "EHLO pandora.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751657AbcD2SN1 (ORCPT ); Fri, 29 Apr 2016 14:13:27 -0400 Date: Fri, 29 Apr 2016 19:12:48 +0100 From: Russell King - ARM Linux To: Douglas Anderson Cc: ulf.hansson@linaro.org, jh80.chung@samsung.com, shawn.lin@rock-chips.com, adrian.hunter@intel.com, stefan@agner.ch, linux-mmc@vger.kernel.org, computersforpeace@gmail.com, dmitry.torokhov@gmail.com, Heiko Stuebner , jszhang@marvell.com, linux-rockchip@lists.infradead.org, devicetree-spec@vger.kernel.org, mark.rutland@arm.com, linux-kernel@vger.kernel.org, vbyravarasu@nvidia.com, lars@metafoo.de, jonathanh@nvidia.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, pawel.moll@arm.com, ijc+devicetree@hellion.org.uk, grundler@chromium.org, galak@codeaurora.org, lporzio@micron.com, robh+dt@kernel.org, chaotian.jing@mediatek.com, sergei.shtylyov@cogentembedded.com, sudeep.holla@arm.com, zhonghui.fu@linux.intel.com, kirill.shutemov@linux.intel.com Subject: Re: [PATCH v2 0/4] Patches to allow consistent mmc / mmcblk numbering w/ device tree Message-ID: <20160429181248.GW19428@n2100.arm.linux.org.uk> References: <1461951139-6109-1-git-send-email-dianders@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1461951139-6109-1-git-send-email-dianders@chromium.org> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 732 Lines: 18 On Fri, Apr 29, 2016 at 10:32:15AM -0700, Douglas Anderson wrote: > This series picks patches from various different places to produce what > I consider the best solution to getting consistent mmc and mmcblk > ordering. > > Why consistent ordering and why not just use UUIDs? IMHO consistent > ordering solves a few different problems: NAK. Really. Use UUIDs, that's the proper solution here. Exactly the same issue arises if you have more than one ATA or SCSI adapter in your PC - things can be probed out of order and end up in different /dev/sd* slots. -- RMK's Patch system: http://www.arm.linux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.