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Date:   Wed, 27 May 2020 15:26:55 +0200
From:   Emanuele Giuseppe Esposito <eesposit@...hat.com>
To:     Alan Maguire <alan.maguire@...cle.com>
Cc:     kvm@...r.kernel.org,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Jim Mattson <jmattson@...gle.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Emanuele Giuseppe Esposito <e.emanuelegiuseppe@...il.com>,
        David Rientjes <rientjes@...gle.com>,
        Jonathan Adams <jwadams@...gle.com>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mips@...r.kernel.org, kvm-ppc@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, netdev@...r.kernel.org,
        brendanhiggins@...gle.com, linux-kselftest@...r.kernel.org,
        kunit-dev@...glegroups.com
Subject: Re: [PATCH v3 3/7] kunit: tests for stats_fs API


>> In order to run them, the kernel .config must set CONFIG_KUNIT=y
>> and a new .kunitconfig file must be created with CONFIG_STATS_FS=y
>> and CONFIG_STATS_FS_TEST=y
>>
> 
> It looks like CONFIG_STATS_FS is built-in, but it exports
> much of the functionality you are testing.  However could the
> tests also be built as a module (i.e. make CONFIG_STATS_FS_TEST
> a tristate variable)? To test this you'd need to specify
> CONFIG_KUNIT=m and CONFIG_STATS_FS_TEST=m, and testing would
> simply be a case of "modprobe"ing the stats fs module and collecting
> results in /sys/kernel/debug/kunit/<module_name> (rather
> than running kunit.py). Are you relying on unexported internals in
> the the tests that would prevent building them as a module?
> 

I haven't checked it yet, but tests should work as separate module.
I will look into it, thanks.

Emanuele

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