linux-kernel - Re: [PATCH 5/8] rfkill: Remove obsolete "state" sysfs interface

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Message-ID: <CA+A7VXVOYY4vzYupsoG0A9kinBvRhrD3_MP2DByR5v+5gGYuyA@mail.gmail.com>
Date:	Tue, 19 Jan 2016 15:36:29 -0500
From:	João Paulo Rechi Vita <jprvita@...il.com>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	Marcel Holtmann <marcel@...tmann.org>,
	linux-wireless <linux-wireless@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Network Development <netdev@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	João Paulo Rechi Vita <jprvita@...lessm.com>,
	linux@...lessm.com
Subject: Re: [PATCH 5/8] rfkill: Remove obsolete "state" sysfs interface

On 19 January 2016 at 15:15, Johannes Berg <johannes@...solutions.net> wrote:
> On Tue, 2016-01-19 at 10:42 -0500, João Paulo Rechi Vita wrote:
>> This was schedule to be removed in 2014 by:
>
>> -For details to this subsystem look at Documentation/rfkill.txt.
>> -
>> -What:                /sys/class/rfkill/rfkill[0-9]+/state
>> -Date:                09-Jul-2007
>> -KernelVersion        v2.6.22
>> -Contact:     linux-wireless@...r.kernel.org
>> -Description:         Current state of the transmitter.
>> -             This file is deprecated and scheduled to be removed
>> in 2014,
>> -             because its not possible to express the 'soft and
>> hard block'
>> -             state of the rfkill driver.
>> -Values:      A numeric value.
>> -             0: RFKILL_STATE_SOFT_BLOCKED
>> -                     transmitter is turned off by software
>> -             1: RFKILL_STATE_UNBLOCKED
>> -                     transmitter is (potentially) active
>> -             2: RFKILL_STATE_HARD_BLOCKED
>> -                     transmitter is forced off by something
>> outside of
>> -                     the driver's control.
>
> I suspect that nevertheless, we can't just remove it - Googling around
> shows quite a bit of (e.g. Android) code using it.
>

Should I update the expected removal date to 2018, or some other time
in the future? Or if this is not going to be removed at all, shouldn't
it be moved back to stable?

--
João Paulo Rechi Vita
http://about.me/jprvita