linux-kernel - Re: [PATCH 2/4] rtc: s3c: Add time range

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Message-ID: <CAPLW+4mE09AOSco+X9qE=1sjXvNVkOxtJqur+HoBJExxiw0J=g@mail.gmail.com>
Date:   Tue, 19 Oct 2021 19:35:26 +0300
From:   Sam Protsenko <semen.protsenko@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        linux-rtc@...r.kernel.org,
        Linux Samsung SOC <linux-samsung-soc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/4] rtc: s3c: Add time range

On Tue, 19 Oct 2021 at 19:22, Krzysztof Kozlowski
<krzysztof.kozlowski@...onical.com> wrote:
>
> On 19/10/2021 18:17, Krzysztof Kozlowski wrote:
> > On 19/10/2021 15:17, Sam Protsenko wrote:
> >> This RTC driver only accepts dates from 2000 to 2099 year. It starts
> >> counting from 2000 to avoid Y2K problem,
> >
> > 1. Where is the minimum (2000) year set in the RTC driver?
>
> Ah, indeed. I found it now in the driver.
>
> >
> >> and S3C RTC only supports 100
> >
> > On some of the devices 100, on some 1000, therefore, no. This does not
> > look correct.
>
> That part of sentence is still incorrect, but change itself makes sense.
> Driver does not support <2000.
>

Driver itself does not allow setting year >= 2100:

<<<<<<<<<<<<<<<<<<<< cut here >>>>>>>>>>>>>>>>>>>
    if (year < 0 || year >= 100) {
        dev_err(dev, "rtc only supports 100 years\n");
        return -EINVAL;
    }
<<<<<<<<<<<<<<<<<<<< cut here >>>>>>>>>>>>>>>>>>>

Devices might allow it, so the commit message phrasing is incorrect
and should be replaced, yes. But the code should be correct. Should I
send v2 with fixed commit message?

> Best regards,
> Krzysztof