The first patch induced by Sashiko rightfully rises a concern on
potential ABI breakage. To avoid that and allow the user (patch 2)
to be converted to use unified output introduce %p[mM][...]U for
printing in upper case. Tests are included and passed.

Changelog v2:
- added first patch (Sashiko)

Andy Shevchenko (2):
  vsprintf: Add upper case flavour to %p[mM]
  HID: nintendo: Use %pM format specifier for MAC addresses

 Documentation/core-api/printk-formats.rst |  3 +++
 drivers/hid/hid-nintendo.c                | 10 ++--------
 lib/tests/printf_kunit.c                  |  2 ++
 lib/vsprintf.c                            | 22 ++++++++++++++++------
 4 files changed, 23 insertions(+), 14 deletions(-)

-- 
2.50.1