This patchset adds a missing facility check and a check that the 'query
physical clock' (PTFF QPT) function is actually available. If it's not
present, no qpt ptp device will be registered. In order to use ptff_query()
in a module, the first patch adds a EXPORT_SYMBOL() to export
ptff_function_mask.

Changes in v2:
- drop CC check
- add PTFF QAF check
- add patch to export ptff_function_mask

Sven Schnelle (2):
  s390/ptff: Export ptff_function_mask[]
  ptp: ptp_s390: Add missing facility check

 arch/s390/kernel/time.c | 1 +
 drivers/ptp/ptp_s390.c  | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

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2.55.0