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

Rob Landley
2013-03-21T04:03:44Z

On 03/20/2013 11:24:54 AM, Daniel Mack 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?

We used to have feature-removal-schedule. Linus removed it. (He did not
add it to feature-removal-schedule first.)

Rob