linux-kernel - Re: [PATCH 2/2] char_dev: order /proc/devices by major number

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Date:   Fri, 16 Jun 2017 08:27:36 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Logan Gunthorpe <logang@...tatee.com>
Cc:     linux-kernel@...r.kernel.org, Bjorn Helgaas <helgaas@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Alan Cox <alan@...ux.intel.com>, Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH 2/2] char_dev: order /proc/devices by major number

On Thu, Jun 15, 2017 at 02:05:21PM -0600, Logan Gunthorpe wrote:
> Presently, the order of the char devices listed in /proc/devices is not
> entirely sequential. If a char device has a major number greater than
> CHRDEV_MAJOR_HASH_SIZE (255), it will be ordered as if its major were
> module 255. For example, 511 appears after 1.

Hey, nice fix, that was annoying!

Also looks like block devices have the same issue in this file, care to
fix that up too while you are there?  :)

thanks,

greg k-h