linux-kernel - Re: [PATCH v2 2/4] kdb: Switch to use %ptTs

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Date:   Thu, 13 May 2021 10:31:30 +0100
From:   Daniel Thompson <daniel.thompson@...aro.org>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Petr Mladek <pmladek@...e.com>, JC Kuo <jckuo@...dia.com>,
        Joe Perches <joe@...ches.com>,
        Sumit Garg <sumit.garg@...aro.org>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-nilfs@...r.kernel.org,
        kgdb-bugreport@...ts.sourceforge.net,
        Steven Rostedt <rostedt@...dmis.org>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Jonathan Corbet <corbet@....net>,
        Mathias Nyman <mathias.nyman@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Ryusuke Konishi <konishi.ryusuke@...il.com>,
        Jason Wessel <jason.wessel@...driver.com>,
        Douglas Anderson <dianders@...omium.org>
Subject: Re: [PATCH v2 2/4] kdb: Switch to use %ptTs

On Tue, May 11, 2021 at 06:39:56PM +0300, Andy Shevchenko wrote:
> Use %ptTs instead of open-coded variant to print contents
> of time64_t type in human readable form.
> 
> Cc: Jason Wessel <jason.wessel@...driver.com>
> Cc: Daniel Thompson <daniel.thompson@...aro.org>
> Cc: kgdb-bugreport@...ts.sourceforge.net
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Reviewed-by: Petr Mladek <pmladek@...e.com>
> Reviewed-by: Douglas Anderson <dianders@...omium.org>

Reviewed-by: Daniel Thompson <daniel.thompson@...aro.org>

Any clue what route this will take into the kernel? I'm certainly happy
for someone else to take the kdb bits alongside the vsprintf stuff
(so here's an acked-by too in case they are fussy about that sort of
thing ;-) ):
Acked-by: Daniel Thompson <daniel.thompson@...aro.org>


Daniel.

> ---
> v2: collected tags
>  kernel/debug/kdb/kdb_main.c | 9 +--------
>  1 file changed, 1 insertion(+), 8 deletions(-)
> 
> diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
> index 1baa96a2ecb8..622410c45da1 100644
> --- a/kernel/debug/kdb/kdb_main.c
> +++ b/kernel/debug/kdb/kdb_main.c
> @@ -2488,7 +2488,6 @@ static void kdb_sysinfo(struct sysinfo *val)
>  static int kdb_summary(int argc, const char **argv)
>  {
>  	time64_t now;
> -	struct tm tm;
>  	struct sysinfo val;
>  
>  	if (argc)
> @@ -2502,13 +2501,7 @@ static int kdb_summary(int argc, const char **argv)
>  	kdb_printf("domainname %s\n", init_uts_ns.name.domainname);
>  
>  	now = __ktime_get_real_seconds();
> -	time64_to_tm(now, 0, &tm);
> -	kdb_printf("date       %04ld-%02d-%02d %02d:%02d:%02d "
> -		   "tz_minuteswest %d\n",
> -		1900+tm.tm_year, tm.tm_mon+1, tm.tm_mday,
> -		tm.tm_hour, tm.tm_min, tm.tm_sec,
> -		sys_tz.tz_minuteswest);
> -
> +	kdb_printf("date       %ptTs tz_minuteswest %d\n", &now, sys_tz.tz_minuteswest);
>  	kdb_sysinfo(&val);
>  	kdb_printf("uptime     ");
>  	if (val.uptime > (24*60*60)) {
> -- 
> 2.30.2
>