linux-kernel - Re: [PATCH v2 0/3] rtc: make st-lpc robust against y2038/2106 bug

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Date:   Sun, 9 Jul 2017 22:33:20 +0200
From:   Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:     Benjamin Gaignard <benjamin.gaignard@...aro.org>
Cc:     john.stultz@...aro.org, tglx@...utronix.de, sboyd@...eaurora.org,
        shuah@...nel.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org, patrice.chotard@...com,
        a.zummo@...ertech.it, linux-arm-kernel@...ts.infradead.org,
        rtc-linux@...glegroups.com, linaro-kernel@...ts.linaro.org
Subject: Re: [PATCH v2 0/3] rtc: make st-lpc robust against y2038/2106 bug

On 19/06/2017 at 11:36:19 +0200, Benjamin Gaignard wrote:
> On 32bits platforms "struct timeval" or "time_t" are using u32 to code the
> date, this cause tools like "date" or "hwclock" failed even before setting
> the RTC device if the date is superior to year 2038 (or 2106).
> 
> To avoid this problem I add one RTC test file which directly use RTC ioctl
> to set and read RTC time and alarm values.
> rtctest_setdate allow to set any date/time given in the command line.
> 
> On this version 2 I add check of problematics years in rtctest like suggest
> by Alexandre.
> 
> Finally that had allowed me to test and fix rtc-st-lpc driver.
> 
> Benjamin Gaignard (3):
>   tools: timer: add rtctest_setdate
>   tool: timer: rtctest add check for problematic dates
>   rtc: st-lpc: make it robust against y2038/2106 bug
> 
>  drivers/rtc/rtc-st-lpc.c                         |  19 ++--
>  tools/testing/selftests/timers/Makefile          |   2 +-
>  tools/testing/selftests/timers/rtctest.c         | 121 ++++++++++++++++++++++-
>  tools/testing/selftests/timers/rtctest_setdate.c |  86 ++++++++++++++++
>  4 files changed, 212 insertions(+), 16 deletions(-)
>  create mode 100644 tools/testing/selftests/timers/rtctest_setdate.c
> 
Applied, thanks.

I've fixed up the date to meaningful ones in patch 2.

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com