From: Pavel Machek <pavel@ucw.cz>
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>,
linaro-kernel@lists.linaro.org,
adi-buildroot-devel@lists.sourceforge.net,
Alessandro Zummo <a.zummo@towertech.it>,
Gregory Clement <gregory.clement@free-electrons.com>,
Ingo Molnar <mingo@redhat.com>,
Jason Cooper <jason@lakedaemon.net>,
John Stultz <john.stultz@linaro.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Linus Walleij <linus.walleij@linaro.org>,
Michael Chan <michael.chan@broadcom.com>,
netdev@vger.kernel.org, rtc-linux@googlegroups.com,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Support Opensource <support.opensource@diasemi.com>,
Thomas Gleixner <tglx@linutronix.de>,
x86@kernel.org, Baruch Siach <baruch@tkos.co.il>,
Hans Ulli Kroll <ulli.kroll@googlemail.com>,
Vladimir Zapolskiy <vz@mleia.com>,
Sylvain Lemieux <slemieux.tyco@gmail.com>,
Barry Song <baohua@kernel.org>,
Maxime Ripard <maxime.ripard@free-electrons.com>,
Chen-Yu Tsai <wens@csie.org>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
linux-tegra@vger.kernel.org, patches@opensource.wolfsonmicro.com,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Len Brown <len.brown@intel.com>,
linux-pm@vger.kernel.org
Subject: Re: [PATCH 00/51] rtc: stop using rtc deprecated functions
Date: Tue, 20 Jun 2017 14:10:11 +0200 [thread overview]
Message-ID: <20170620121011.GA13221@amd> (raw)
In-Reply-To: <20170620100348.zh4ygvjjgnhxvmvl@piout.net>
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On Tue 2017-06-20 12:03:48, Alexandre Belloni wrote:
> On 20/06/2017 at 11:35:08 +0200, Benjamin Gaignard wrote:
> > rtc_time_to_tm() and rtc_tm_to_time() are deprecated because they
> > rely on 32bits variables and that will make rtc break in y2038/2016.
>
> Please don't, because this hide the fact that the hardware will not
> handle dates in y2038 anyway and as pointed by Russell a few month ago,
> rtc_time_to_tm will be able to catch it but the 64 bit version will
> silently ignore it.
Reference? Because rtc on PCs stores date in binary coded decimal, so
it is likely to break in 2100, not 2038...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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next prev parent reply other threads:[~2017-06-20 12:10 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-20 9:35 [PATCH 00/51] rtc: stop using rtc deprecated functions Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 01/51] x86: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 02/51] x86: intel-mid: vrtc: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 03/51] net: broadcom: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 04/51] rtc: 88pm80x: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 05/51] rtc: 88pm860x: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 06/51] rtc: ab-b5ze-s3: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 07/51] rtc: ab8500: " Benjamin Gaignard
2017-06-20 16:06 ` Linus Walleij
2017-06-21 6:57 ` kbuild test robot
2017-06-20 9:35 ` [PATCH 08/51] rtc: armada38x: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 09/51] rtc: at32ap700x: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 10/51] rtc: at91sam9: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 11/51] rtc: bfin: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 12/51] rtc: coh901331: " Benjamin Gaignard
2017-06-20 16:07 ` [rtc-linux] " Linus Walleij
2017-06-20 21:21 ` Russell King - ARM Linux
2017-06-20 9:35 ` [PATCH 13/51] rtc: cpcap: " Benjamin Gaignard
2017-06-21 4:37 ` kbuild test robot
2017-06-20 9:35 ` [PATCH 14/51] rtc: da9063: " Benjamin Gaignard
2017-06-20 13:41 ` Steve Twiss
2017-06-20 14:18 ` Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 15/51] " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 16/51] rtc: davinci: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 17/51] rtc: digicolor: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 18/51] rtc: dm355evm: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 19/51] rtc: ds1305: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 20/51] rtc: ds1374: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 21/51] rtc: ds1511: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 22/51] rtc: ds1553: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 23/51] rtc: ds1672: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 24/51] rtc: ds2404: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 25/51] rtc: ep93xx: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 26/51] rtc: gemini: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 27/51] rtc: imxdi: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 28/51] rtc: jz4740: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 29/51] rtc: lpc32xx: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 30/51] rtc: mv: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 31/51] rtc: omap: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 32/51] rtc: pcap: " Benjamin Gaignard
2017-06-21 4:45 ` kbuild test robot
2017-06-21 5:07 ` kbuild test robot
2017-06-20 9:35 ` [PATCH 33/51] rtc: pl030: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 34/51] rtc: pl031: " Benjamin Gaignard
2017-06-20 16:08 ` Linus Walleij
2017-06-20 21:05 ` Russell King - ARM Linux
2017-06-20 9:35 ` [PATCH 35/51] rtc: pm8xxx: " Benjamin Gaignard
2017-06-21 16:54 ` kbuild test robot
2017-07-03 10:12 ` Arnd Bergmann
2017-06-20 9:35 ` [PATCH 36/51] rtc: rs5c348: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 37/51] rtc: sa1100: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 38/51] rtc: sh: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 39/51] rtc: sirfsoc: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 40/51] rtc: snvs: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 41/51] rtc: stk17ta8: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 42/51] rtc: stmp3xxx: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 43/51] rtc: sun6i: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 44/51] rtc: sysfs: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 45/51] rtc: tegra " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 46/51] rtc: test: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 47/51] rtc: tps6586: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 48/51] rtc: vr41xx: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 49/51] rtc: wm831x: " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 50/51] rtc: xgene " Benjamin Gaignard
2017-06-20 9:35 ` [PATCH 51/51] power: suspend test: " Benjamin Gaignard
2017-06-20 12:10 ` Pavel Machek
2017-06-20 10:03 ` [PATCH 00/51] rtc: " Alexandre Belloni
2017-06-20 10:07 ` Alexandre Belloni
2017-06-20 12:10 ` Pavel Machek [this message]
2017-06-20 12:24 ` Alexandre Belloni
2017-06-20 13:26 ` Pavel Machek
2017-06-20 13:37 ` Steve Twiss
2017-06-20 13:44 ` Pavel Machek
2017-06-20 13:48 ` Alexandre Belloni
2017-06-20 15:07 ` Benjamin Gaignard
2017-06-20 21:15 ` Russell King - ARM Linux
2017-06-21 9:26 ` David Laight
2017-06-21 9:35 ` Russell King - ARM Linux
2017-06-20 22:08 ` Pavel Machek
2017-06-21 9:14 ` Benjamin Gaignard
-- strict thread matches above, loose matches on Subject: below --
2017-06-20 21:35 Alexandre Belloni
2017-06-20 22:00 ` Thomas Gleixner
2017-06-20 22:38 ` Russell King - ARM Linux
2017-06-21 7:51 ` Pavel Machek
2017-06-21 8:39 ` Alexandre Belloni
2017-06-21 6:34 ` Pavel Machek
2017-06-21 12:35 ` Alexandre Belloni
2017-06-21 18:08 ` Pavel Machek
2017-06-21 9:19 ` Russell King - ARM Linux
2017-06-21 9:41 ` Alexandre Belloni
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