linux-kernel - Re: [PATCH][ACPI][BUTTON] remove procfs-interface

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Date:	Fri, 13 Jul 2007 00:37:07 +0530
From:	"Satyam Sharma" <satyam.sharma@...il.com>
To:	"Zhang, Rui" <rui.zhang@...el.com>
Cc:	Henne <henne@...htwindheim.de>,
	"Arjan van de Ven" <arjan@...radead.org>,
	"Brown, Len" <len.brown@...el.com>, linux-acpi@...r.kernel.org,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][ACPI][BUTTON] remove procfs-interface

On 7/12/07, Zhang, Rui <rui.zhang@...el.com> wrote:
> Well, the ACPI sysfs conversion is not finished yet
> [...]
> I'm not sure if the button sysfs I/F is already finished.
> We'd better make a double check. :)

Ok, this sounds reasonable.

> and some user space tools still use the ACPI procfs.

But this does *not*, IMHO. It quite defeats the whole concept of
feature-removal-schedule.txt. I think that file exists precisely
because we cannot gratuitously break userspace interfaces just
like that, but when something gets put up there with a removal date
that is a good one year in the future, and userspace tools _still_
continue to use it ... then, I suspect something's seriously wrong.

Either the feature-removal-schedule.txt file has become something
that users don't even bother checking, or else, they _know_ that
even if they don't bother keeping up with the pace in kernel-land,
that interface still won't go away (because they're still using it!).
In both the above cases, it appears that file itself has become
irrelevant and a "feature" that could be "removed" ... :-)

> The schedule of removing ACPI procfs I/F will be changed to Jan 08.
> I'm about to send a patch to update it.

Satyam
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