[PATCH v2 0/4] Patches to allow consistent mmc / mmcblk numbering w/ device tree
From: robh+dt@kernel.org (Rob Herring)
Date: 2016-05-04 12:26:10
Also in:
linux-devicetree, linux-mmc, linux-rockchip, lkml
On Wed, May 4, 2016 at 2:18 AM, Pavel Machek [off-list ref] wrote:
On Fri 2016-04-29 19:12:48, Russell King - ARM Linux wrote:quoted
On Fri, Apr 29, 2016 at 10:32:15AM -0700, Douglas Anderson wrote:quoted
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.Except that UUIDs do not solve the problem. You have just booted of nfsroot, and you want to format u-SD card in the external slot. How do you do that?
The same way you format a USB stick when you insert it. If you have built-in versus removable, then we should expose that information to userspace rather than some arbitrary encoding in DT that 0 means built-in and 1 means removable. Or if you have multiple slots, then use "label" to provide meaningful slot names. Rob