linux-kernel - Re: [PATCH] m68k: Remove read_persistent

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Message-ID: <CAMuHMdW5LkOhTbiZVRG41QgBYk8JnjK1caSSN-gmJ9c02R0BWw@mail.gmail.com>
Date:   Mon, 23 Apr 2018 11:07:49 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Baolin Wang <baolin.wang@...aro.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Mark Brown <broonie@...nel.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] m68k: Remove read_persistent_clock()

Hi Baolin,

On Mon, Apr 23, 2018 at 4:08 AM, Baolin Wang <baolin.wang@...aro.org> wrote:
> On 20 April 2018 at 23:22, Arnd Bergmann <arnd@...db.de> wrote:
>> On Thu, Apr 19, 2018 at 8:22 AM, Baolin Wang <baolin.wang@...aro.org> wrote:
>>> The read_persistent_clock() uses a timespec, which is not year 2038 safe
>>> on 32bit systems. Moreover on m68k architecture, we have implemented generic
>>> RTC drivers that can be used to compensate the system suspend time. So
>>> we can remove the obsolete read_persistent_clock().
>>>
>>> Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
>>
>> I'm not sure about this one: it's still possible to turn off
>> CONFIG_RTC_DRV_GENERIC
>> on M68KCLASSIC, and in that case we still need a read_persistent_clock64()
>> implementation. Or we use your patch but make CONFIG_RTC_DRV_GENERIC
>> mandatory.
>
> OK. Thanks for fixing the issue with your patch.

Can I consider that an Acked-by?

Thanks!

>> See below for a version I did a while ago (but never submitted as I got
>> distracted).
>>
>>        Arnd
>>
>> commit 13ddf5a33a195e9b7a7a6ed10481363b5259c1d4
>> Author: Arnd Bergmann <arnd@...db.de>
>> Date:   Thu Jan 25 15:30:50 2018 +0100
>>
>>     m68k: use read_persistent_clock64 consistently

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds