Re: [PATCH v6 00/20] lib, rtc: Print rtc_time via %ptR[dt][r]

From: Alexandre Belloni
Date: Tue Dec 11 2018 - 05:53:51 EST

On 04/12/2018 23:23:10+0200, Andy Shevchenko wrote:
> At some point I have noticed too many users of struct rtc_time that
> printing its content field by field.
> In this series I introduce %ptR[dt][r] specifier to make life a bit
> easier.
> There are still users of detailed output of the struct rtc_time, but we
> can introduce an additional extension for them in the future if needed,
> otherwise they might be converted to the proposed output format.
> Some of the changes slightly modify the output. In those cases we are on
> the safe side since they are pure debug. Nevertheless I tried to leave
> numbers to be the same or quite close: in some cases year was printed
> +1900, though month was left in the range [0,11] instead of [1,12].
> I didn't compile everything there, though I did a basic smoke test on
> some x86 hardware. So, I rely on kbuild test robot as well :-)
> Most of the users currently are RTC drivers, thus the patch series is
> assumed to go via RTC tree.
> Cc: Petr Mladek <pmladek@xxxxxxxx>
> Changelog v6:
> - add few test cases (Petr)
> - timeanddate -> time_and_date (Petr)
> - drop while loop for finding raw parameter (Petr)
> - drop first patch as seems to go via nvmem tree, though I didn't see it there
> Changelog v5: - remove leftover from pointer() comment in vsprintf.c
> - fix indentation in rtc-proc.c
> - fix patch 1 as suggested by Joe and Alexandre
> - add Thierry's Ab tag
> - update Alexandre's email and Cc to Petr
> Changelog v4:
> - drop mention of PRINTK_PEXT_TIMEDATE (Joe)
> - drop deprecated validation (Alexandre)
> - add patch 1 to fix compilation warning (may be applied independently)
> Changelog v3:
> - no one supported configuration option for new extension, so it's dropped
> - amend documentation (Geert)
> - optimize flags checking (Geert)
> - drop patch against non-existing anymore drivers
> (due to massive architectures removal)
> - rebase on top of recent linux-next
> Changelog v2:
> - split out lib/vsprintf changes to separate series
> - build it optionally depending on introduced PRINTK_PEXT_TIMEDATE
> - for now support only struct rtc_time
> - make an additional letter for different time representations
> - make above letter capital to reduce confusion on %ptr vs. %ptR
> - drop kdb patch since it's a candidate for time64_t support
> Andy Shevchenko (20):
> lib/vsprintf: Print time and date in human readable format via %pt
> rtc: Switch to use %ptR
> rtc: at91rm9200: Switch to use %ptR
> rtc: at91sam9: Switch to use %ptR
> rtc: m41t80: Switch to use %ptR
> rtc: m48t59: Switch to use %ptR
> rtc: mcp795: Switch to use %ptR
> rtc: pcf50633: Switch to use %ptR
> rtc: pic32: Switch to use %ptR
> rtc: pm8xxx: Switch to use %ptR
> rtc: puv3: Switch to use %ptR
> rtc: rk808: Switch to use %ptR
> rtc: rx6110: Switch to use %ptR
> rtc: rx8025: Switch to use %ptR
> rtc: s3c: Switch to use %ptR
> rtc: s5m: Switch to use %ptR
> rtc: tegra: Switch to use %ptR
> Input: hp_sdc_rtc - Switch to use %ptR
> m68k/mac: Switch to use %ptR
> PM: Switch to use %ptR

All applied, thanks.

Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering