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    Subject[PATCH v2 00/21] lib, rtc: Print rtc_time via %ptR[dt][rv]
    Date
    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][rv] 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 is printed +
    1900, though month is 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.

    The patch series depends on earlier send clean up of lib/vsprintf [1].

    [1]: https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1612716.html

    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 (21):
    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
    ds1302: Switch to use %ptR
    Input: hp_sdc_rtc - Switch to use %ptR
    mk68/mac: Switch to use %ptR
    PM: Switch to use %ptR

    Documentation/core-api/printk-formats.rst | 31 +++++++
    arch/m68k/Kconfig.machine | 1 +
    arch/m68k/mac/misc.c | 8 +-
    drivers/base/power/trace.c | 4 +-
    drivers/char/Kconfig | 2 +
    drivers/char/ds1302.c | 39 +++-----
    drivers/char/rtc.c | 7 +-
    drivers/input/misc/Kconfig | 1 +
    drivers/input/misc/hp_sdc_rtc.c | 8 +-
    drivers/rtc/Kconfig | 1 +
    drivers/rtc/hctosys.c | 8 +-
    drivers/rtc/interface.c | 8 +-
    drivers/rtc/rtc-at91rm9200.c | 15 +---
    drivers/rtc/rtc-at91sam9.c | 16 +---
    drivers/rtc/rtc-m41t80.c | 6 +-
    drivers/rtc/rtc-m48t59.c | 8 +-
    drivers/rtc/rtc-mcp795.c | 18 ++--
    drivers/rtc/rtc-pcf50633.c | 8 +-
    drivers/rtc/rtc-pic32.c | 18 +---
    drivers/rtc/rtc-pm8xxx.c | 16 ++--
    drivers/rtc/rtc-proc.c | 36 ++------
    drivers/rtc/rtc-puv3.c | 18 +---
    drivers/rtc/rtc-rk808.c | 20 ++---
    drivers/rtc/rtc-rx6110.c | 12 +--
    drivers/rtc/rtc-rx8025.c | 19 +---
    drivers/rtc/rtc-s3c.c | 21 ++---
    drivers/rtc/rtc-s5m.c | 27 ++----
    drivers/rtc/rtc-sysfs.c | 12 +--
    drivers/rtc/rtc-tegra.c | 30 +------
    kernel/power/Kconfig | 1 +
    lib/Kconfig | 8 ++
    lib/test_printf.c | 6 ++
    lib/vsprintf.c | 145 ++++++++++++++++++++++++++++++
    33 files changed, 287 insertions(+), 291 deletions(-)

    --
    2.15.1

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