Re: [PATCH v2] selftests/pidfd: Fix duplicate-symbol warnings for SCHED_ CPP symbols

[Shuah Khan <skhan@linuxfoundation.org>]

On 7/23/25 17:13, Paul E. McKenney wrote:
> The pidfd selftests run in userspace and include both userspace and kernel
> header files.  On some distros (for example, CentOS), this results in
> duplicate-symbol warnings in allmodconfig builds, while on other distros
> (for example, Ubuntu) it does not.
> 
> Therefore, use #undef to get rid of the userspace definitions in favor
> of the kernel definitions.
> 
> Other ways of handling this include splitting up the selftest code so
> that the userspace definitions go into one translation unit and the
> kernel definitions into another (which might or might not be feasible)
> or to adjust compiler command-line options to suppress the warnings
> (which might or might not be desirable).
> 
> [ paulmck: Apply Shuah Khan feedback. ]

Looks good to me.

thanks,
-- Shuah