Merge branch 'ptp-Validate-the-ancillary-ioctl-flags-more-carefully'
Richard Cochran says:
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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>