Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1671538

Re: [PATCH 00/51] rtc: stop using rtc deprecated functions

From Russell King - ARM Linux <linux@armlinux.org.uk>
Newsgroups linux.kernel
Subject Re: [PATCH 00/51] rtc: stop using rtc deprecated functions
Date 2017-06-21 11:30 +0200
Message-ID <tUK7x-4ih-47@gated-at.bofh.it> (permalink)
References <tUz2p-5x0-13@gated-at.bofh.it> <tUzvt-5W2-39@gated-at.bofh.it> <tUIIq-3hT-11@gated-at.bofh.it> <tUJl7-3Kj-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On Wed, Jun 21, 2017 at 10:39:07AM +0200, Alexandre Belloni wrote:
> On 21/06/2017 at 09:51:52 +0200, Pavel Machek wrote:
> > If someone uses different threshold, well, there will be
> > confusion. But only for users that have their rtc set to the past,
> > which is quite unusual.
> > 
> 
> Or not, having an RTC set in the past is actually quite common. I'd find
> it weird to have a new device boot and be set to a date in the future.

... and that basically means you can't use hardware that stores RTC
time as a 32-bit number of seconds past 2106.

> Also note that the threshold or offset thing may seem like a good idea
> but fails with many RTCs because of how they handle leap years.

Not for the case being discussed.  A 32-bit counter of seconds knows
nothing about leap years - all that is handled by the conversion
functions.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Re: [PATCH 00/51] rtc: stop using rtc deprecated functions Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2017-06-20 23:40 +0200
  Re: [PATCH 00/51] rtc: stop using rtc deprecated functions Thomas Gleixner <tglx@linutronix.de> - 2017-06-21 00:10 +0200
    Re: [PATCH 00/51] rtc: stop using rtc deprecated functions Russell King - ARM Linux <linux@armlinux.org.uk> - 2017-06-21 00:50 +0200
    Re: [PATCH 00/51] rtc: stop using rtc deprecated functions Pavel Machek <pavel@ucw.cz> - 2017-06-21 10:00 +0200
      Re: [PATCH 00/51] rtc: stop using rtc deprecated functions Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2017-06-21 10:40 +0200
        Re: [PATCH 00/51] rtc: stop using rtc deprecated functions Russell King - ARM Linux <linux@armlinux.org.uk> - 2017-06-21 11:30 +0200
          Re: [PATCH 00/51] rtc: stop using rtc deprecated functions Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2017-06-21 11:50 +0200
        Re: [PATCH 00/51] rtc: stop using rtc deprecated functions Pavel Machek <pavel@ucw.cz> - 2017-06-21 13:40 +0200
          Re: [PATCH 00/51] rtc: stop using rtc deprecated functions Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2017-06-21 14:40 +0200
            Re: [PATCH 00/51] rtc: stop using rtc deprecated functions Pavel Machek <pavel@ucw.cz> - 2017-06-21 20:10 +0200

csiph-web