linux-kernel - Re: [PATCH v2 0/4] Patches to allow consistent mmc / mmcblk numbering w/ device tree

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Message-ID: <20160429181248.GW19428@n2100.arm.linux.org.uk>
Date:	Fri, 29 Apr 2016 19:12:48 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Douglas Anderson <dianders@...omium.org>
Cc:	ulf.hansson@...aro.org, jh80.chung@...sung.com,
	shawn.lin@...k-chips.com, adrian.hunter@...el.com, stefan@...er.ch,
	linux-mmc@...r.kernel.org, computersforpeace@...il.com,
	dmitry.torokhov@...il.com, Heiko Stuebner <heiko@...ech.de>,
	jszhang@...vell.com, linux-rockchip@...ts.infradead.org,
	devicetree-spec@...r.kernel.org, mark.rutland@....com,
	linux-kernel@...r.kernel.org, vbyravarasu@...dia.com,
	lars@...afoo.de, jonathanh@...dia.com,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	pawel.moll@....com, ijc+devicetree@...lion.org.uk,
	grundler@...omium.org, galak@...eaurora.org, lporzio@...ron.com,
	robh+dt@...nel.org, chaotian.jing@...iatek.com,
	sergei.shtylyov@...entembedded.com, sudeep.holla@....com,
	zhonghui.fu@...ux.intel.com, kirill.shutemov@...ux.intel.com
Subject: Re: [PATCH v2 0/4] Patches to allow consistent mmc / mmcblk
 numbering w/ device tree

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/
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