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

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Message-ID: <47b45b70-91da-ce41-535d-89d92f380274@kernel.org>
Date:   Fri, 23 Jun 2017 13:40:41 -0600
From:   Shuah Khan <shuah@...nel.org>
To:     Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        john.stultz@...aro.org, tglx@...utronix.de, sboyd@...eaurora.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        patrice.chotard@...com, a.zummo@...ertech.it,
        alexandre.belloni@...e-electrons.com,
        linux-arm-kernel@...ts.infradead.org, rtc-linux@...glegroups.com
Cc:     linaro-kernel@...ts.linaro.org, Shuah Khan <shuah@...nel.org>
Subject: Re: [PATCH v2 0/3] rtc: make st-lpc robust against y2038/2106 bug

On 06/19/2017 03:36 AM, 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
> 

Hi Thomas/John,

I can take the first two patches in this series through linux-kselftest
with your or John's Ack. Please review and let me know one way or the
other.

The third one is a rtc driver patch. Please let me know how do you want
to handle this series soon we can get this into 4.13-rc1.

thanks,
-- Shah