[LTP] [PATCH v2 4/8] Add ioctl_pidfd02 test

[Cyril Hrubis]

Hi!
> > Looking at the kernel code it looks that if the PIDFD_INFO_EXIT is not
> > supported we will get ESRCH in the second case. So I suppose that better
> > fix would be to allow ESRCH in the second case if kernel is older than
> > 6.15 instead of skipping the whole test.
> 
> Maybe it makes more sense to check PIDFD_INFO_EXIT is available via 
> configure.ac and eventually check for this support in the setup(). So we 
> avoid weird runtime checks. WDYT?

Forget about configure checks, these are useless since the version of
the kernel never corresponds to the kernel headers installed on the
system.

The only way how to do things is to check if something is present at a
runtime.

-- 
Cyril Hrubis
chrubis@suse.cz