linux-kernel - Re: [PATCH] kunit: Export kunit

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Date:   Wed, 18 Jan 2023 12:02:15 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     David Gow <davidgow@...gle.com>
Cc:     Arnd Bergmann <arnd@...nel.org>,
        Brendan Higgins <brendan.higgins@...ux.dev>,
        Arnd Bergmann <arnd@...db.de>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Daniel Latypov <dlatypov@...gle.com>,
        Jeremy Kerr <jk@...econstruct.com.au>,
        Joe Fradley <joefradley@...gle.com>,
        Javier Martinez Canillas <javierm@...hat.com>,
        Maíra Canal <mcanal@...lia.com>,
        linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kunit: Export kunit_running()

Hi David, Arnd,

Thanks for fixing this issue

On Wed, Jan 18, 2023 at 08:37:26AM +0800, David Gow wrote:
> On Wed, 18 Jan 2023 at 00:50, Arnd Bergmann <arnd@...nel.org> wrote:
> >
> > From: Arnd Bergmann <arnd@...db.de>
> >
> > Using kunit_fail_current_test() in a loadable module causes a link
> > error like:
> >
> > ERROR: modpost: "kunit_running" [drivers/gpu/drm/vc4/vc4.ko] undefined!
> >
> > Export the symbol to allow using it from modules.
> >
> > Fixes: da43ff045c3f ("drm/vc4: tests: Fail the current test if we access a register")
> > Signed-off-by: Arnd Bergmann <arnd@...db.de>
> > ---
> 
> Thanks for fixing this!
> 
> I think the longer-term solution for this is the "hooks" approach
> (which works even when KUnit itself is built as a module):
> https://lore.kernel.org/all/20230117142737.246446-1-davidgow@google.com/
> 
> But this looks good to fix it in the meantime.
> 
> Reviewed-by: David Gow <davidgow@...gle.com>

How do you want to merge that patch? Will you take it through your tree?

Maxime