linux-kernel - Re: [PATCH v1 00/25] lib, rtc: Print rtc

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Message-ID: <861fe353-eb95-615f-b1dc-3326501342af@android.com>
Date:   Tue, 18 Jul 2017 12:57:45 -0700
From:   Mark Salyzyn <salyzyn@...roid.com>
To:     Joe Perches <joe@...ches.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Rasmus Villemoes <rasmus.villemoes@...vas.dk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        linux-rtc@...r.kernel.org
Subject: Re: [PATCH v1 00/25] lib, rtc: Print rtc_time via %pt[dt][rv]

On 07/18/2017 10:50 AM, Joe Perches wrote:
> On Thu, 2017-06-08 at 16:47 +0300, Andy Shevchenko wrote:
>> Recently I have noticed too many users of struct rtc_time that printing
>> its content field by field.
>>
>> In this series I introduce %pt[dt][rv] specifier to make life a bit
>> easier.
> Hey Andy.
>
> I just saw a patch with a printk for rtc time from Mark Salyzyn.
> https://lkml.org/lkml/2017/7/18/885
>
> Any idea if you want to push this extension?
>
> I like the concept and still think it could be extended a bit more.
>
> from: https://lkml.org/lkml/2017/6/8/1134
>
> My preference would be for %pt[type]<output style>
> where <type> is mandatory and could be:
>
>          r for struct rtc_time
>          6 for time64_t
>          k for ktime_t
>          T for struct timespec64
>          etc
>
> and <output style> has an unspecified default of
> YYYY-MM-DD:hh:mm:ss
>
> Perhaps use the "date" formats without the leading
> % uses for <output style> for additional styles.
>
YYYY-MM-DD hh:mm:ss.nnnnnnnnn ?