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

From: Daniel Thompson <daniel.thompson@linaro.org>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Petr Mladek <pmladek@suse.com>, JC Kuo <jckuo@nvidia.com>,
	Joe Perches <joe@perches.com>, Sumit Garg <sumit.garg@linaro.org>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-usb@vger.kernel.org, linux-tegra@vger.kernel.org,
	linux-nilfs@vger.kernel.org,
	kgdb-bugreport@lists.sourceforge.net,
	Steven Rostedt <rostedt@goodmis.org>,
	Sergey Senozhatsky <senozhatsky@chromium.org>,
	Rasmus Villemoes <linux@rasmusvillemoes.dk>,
	Jonathan Corbet <corbet@lwn.net>,
	Mathias Nyman <mathias.nyman@intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Ryusuke Konishi <konishi.ryusuke@gmail.com>,
	Jason Wessel <jason.wessel@windriver.com>,
	Douglas Anderson <dianders@chromium.org>
Subject: Re: [PATCH v2 2/4] kdb: Switch to use %ptTs
Date: Thu, 13 May 2021 10:31:30 +0100	[thread overview]
Message-ID: <20210513093130.qzbh6tm7lbclgayh@maple.lan> (raw)
In-Reply-To: <20210511153958.34527-2-andriy.shevchenko@linux.intel.com>

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@windriver.com>
> Cc: Daniel Thompson <daniel.thompson@linaro.org>
> Cc: kgdb-bugreport@lists.sourceforge.net
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Reviewed-by: Petr Mladek <pmladek@suse.com>
> Reviewed-by: Douglas Anderson <dianders@chromium.org>

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