tree cc3ade086e74aec759643dcf2b3001a2c49bdd4d
parent 3df70afe8d33f4977d0e0891bdcfb639320b5257
parent 6eb54cbb4a86b9a9dac5ddf3b2fcd130249a2008
author David S. Miller <davem@davemloft.net> 1573850913 -0800
committer David S. Miller <davem@davemloft.net> 1573850913 -0800

Merge branch 'ptp-Validate-the-ancillary-ioctl-flags-more-carefully'

Richard Cochran says:

====================
ptp: Validate the ancillary ioctl flags more carefully.

The flags passed to the ioctls for periodic output signals and
time stamping of external signals were never checked, and thus formed
a useless ABI inadvertently.  More recently, a version 2 of the ioctls
was introduced in order make the flags meaningful.  This series
tightens up the checks on the new ioctl flags.

- Patch 1 ensures at least one edge flag is set for the new ioctl.
- Patches 2-7 are Jacob's recent checks, picking up the tags.
- Patch 8 introduces a "strict" flag for passing to the drivers when the
  new ioctl is used.
- Patches 9-12 implement the "strict" checking in the drivers.
- Patch 13 extends the test program to exercise combinations of flags.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>