Here is the third part of the unification time printing in the kernel.
This time for struct timespec64. The first patch brings a support
into printf() implementation (test cases and documentation update
included) followed by the treewide conversion of the current users.

Petr, we got like more than a half being Acked, I think if you are okay
with this, the patches that have been tagged can be applied.

Note, not everything was compile-tested. Kunit test has been passed, though.

Changelog v3:
- fixed a compilation issue with fnic (LKP), also satisfied checkpatch
- collected more tags

Petr, I have not renamed 'p' to 'n' due to much of rework and
noise introduction for the changes that has been reviewed.
However, I addressed the documentation issues.

v2: <20251111122735.880607-1-andriy.shevchenko@linux.intel.com>

Changelog v2:
- dropped wrong patches (Hans, Takashi)
- fixed most of the checkpatch warnings (fdo CI, media CI)
- collected tags

v1: <20251110184727.666591-1-andriy.shevchenko@linux.intel.com>

Andy Shevchenko (21):
  lib/vsprintf: Add specifier for printing struct timespec64
  ceph: Switch to use %ptSp
  libceph: Switch to use %ptSp
  dma-buf: Switch to use %ptSp
  drm/amdgpu: Switch to use %ptSp
  drm/msm: Switch to use %ptSp
  drm/vblank: Switch to use %ptSp
  drm/xe: Switch to use %ptSp
  e1000e: Switch to use %ptSp
  igb: Switch to use %ptSp
  ipmi: Switch to use %ptSp
  media: av7110: Switch to use %ptSp
  mmc: mmc_test: Switch to use %ptSp
  net: dsa: sja1105: Switch to use %ptSp
  PCI: epf-test: Switch to use %ptSp
  pps: Switch to use %ptSp
  ptp: ocp: Switch to use %ptSp
  s390/dasd: Switch to use %ptSp
  scsi: fnic: Switch to use %ptSp
  scsi: snic: Switch to use %ptSp
  tracing: Switch to use %ptSp

 Documentation/core-api/printk-formats.rst     | 11 +++-
 drivers/char/ipmi/ipmi_si_intf.c              |  3 +-
 drivers/char/ipmi/ipmi_ssif.c                 |  6 +--
 drivers/dma-buf/sync_debug.c                  |  2 +-
 .../gpu/drm/amd/amdgpu/amdgpu_dev_coredump.c  |  3 +-
 drivers/gpu/drm/drm_vblank.c                  |  6 +--
 .../gpu/drm/msm/disp/msm_disp_snapshot_util.c |  3 +-
 drivers/gpu/drm/msm/msm_gpu.c                 |  3 +-
 drivers/gpu/drm/xe/xe_devcoredump.c           |  4 +-
 drivers/mmc/core/mmc_test.c                   | 20 +++----
 drivers/net/dsa/sja1105/sja1105_tas.c         |  8 ++-
 drivers/net/ethernet/intel/e1000e/ptp.c       |  7 +--
 drivers/net/ethernet/intel/igb/igb_ptp.c      |  7 +--
 drivers/pci/endpoint/functions/pci-epf-test.c |  5 +-
 drivers/pps/generators/pps_gen_parport.c      |  3 +-
 drivers/pps/kapi.c                            |  3 +-
 drivers/ptp/ptp_ocp.c                         | 13 ++---
 drivers/s390/block/dasd.c                     |  3 +-
 drivers/scsi/fnic/fnic_trace.c                | 52 ++++++++-----------
 drivers/scsi/snic/snic_debugfs.c              | 10 ++--
 drivers/scsi/snic/snic_trc.c                  |  5 +-
 drivers/staging/media/av7110/av7110.c         |  2 +-
 fs/ceph/dir.c                                 |  5 +-
 fs/ceph/inode.c                               | 49 ++++++-----------
 fs/ceph/xattr.c                               |  6 +--
 kernel/trace/trace_output.c                   |  6 +--
 lib/tests/printf_kunit.c                      |  4 ++
 lib/vsprintf.c                                | 28 +++++++++-
 net/ceph/messenger_v2.c                       |  6 +--
 29 files changed, 130 insertions(+), 153 deletions(-)

-- 
2.50.1

On Thu 2025-11-13 15:32:14, Andy Shevchenko wrote:
> Here is the third part of the unification time printing in the kernel.
> This time for struct timespec64. The first patch brings a support
> into printf() implementation (test cases and documentation update
> included) followed by the treewide conversion of the current users.
> 
> Petr, we got like more than a half being Acked, I think if you are okay
> with this, the patches that have been tagged can be applied.
> 
> Note, not everything was compile-tested. Kunit test has been passed, though.

JFYI, the patchset has been committed into printk/linux.git,
branch for-6.19-vsprintf-timespec64.

Note, that I have:

   + fixed the 19th patch as proposed, see
     https://lore.kernel.org/all/aR2XAYWTEgMZu_Mx@pathway.suse.cz/

   + reviewed all patches but I triple checked 7th patch which
     did not have any ack yet. And I added my Reviewed-by tag
     there. ;-)

   + I tried build with allyesconfig. It succeeded. I am not 100%
     sure that it built all modified sources but...

Best Regards,
Petr

On Wed, Nov 19, 2025 at 02:11:12PM +0100, Petr Mladek wrote:
> On Thu 2025-11-13 15:32:14, Andy Shevchenko wrote:
> > Here is the third part of the unification time printing in the kernel.
> > This time for struct timespec64. The first patch brings a support
> > into printf() implementation (test cases and documentation update
> > included) followed by the treewide conversion of the current users.
> > 
> > Petr, we got like more than a half being Acked, I think if you are okay
> > with this, the patches that have been tagged can be applied.
> > 
> > Note, not everything was compile-tested. Kunit test has been passed, though.
> 
> JFYI, the patchset has been committed into printk/linux.git,
> branch for-6.19-vsprintf-timespec64.
> 
> Note, that I have:
> 
>    + fixed the 19th patch as proposed, see
>      https://lore.kernel.org/all/aR2XAYWTEgMZu_Mx@pathway.suse.cz/
> 
>    + reviewed all patches but I triple checked 7th patch which
>      did not have any ack yet. And I added my Reviewed-by tag
>      there. ;-)
> 
>    + I tried build with allyesconfig. It succeeded. I am not 100%
>      sure that it built all modified sources but...

Thank you!

-- 
With Best Regards,
Andy Shevchenko