Re: [PATCH 2/2] of: remove /proc/device-tree

Grant Likely
2013-03-20T16:41:17Z

On Wed, Mar 20, 2013 at 4:24 PM, Daniel Mack <daniel@zonque.org> wrote:
> On Wed, Mar 20, 2013 at 4:19 PM, Rob Herring <robherring2@gmail.com> wrote:
>> On 03/20/2013 09:51 AM, Grant Likely wrote:
>>> The same data is now available in sysfs, so we can remove the code
>>> that exports it in /proc and replace it with a symlink to the sysfs
>>> version.
>>>
>>> Tested on versatile qemu model and mpc5200 eval board. More testing
>>> would be appreciated.
>>
>> I would suggest testing with lshw in particular. That's the only
>> /proc/device-tree user I've come across.
>
> kexec is another one. Not to mention various vendor scripts that aren't
> necessarily public.
>
> Don't such things also fall under the "we do not break userspace
> compatibility - ever" rule?

Correct. I've got no intention of applying this without testing the
major users first.

g.