linux-kernel - Re: [PATCH] software node: introduce CONFIG_KUNIT_DRIVER_PE

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Date:   Tue, 14 Jan 2020 16:42:37 +0000 (GMT)
From:   Alan Maguire <alan.maguire@...cle.com>
To:     Randy Dunlap <rdunlap@...radead.org>
cc:     Alan Maguire <alan.maguire@...cle.com>, brendanhiggins@...gle.com,
        gregkh@...uxfoundation.org, rjw@...ysocki.net,
        dmitry.torokhov@...il.com, sfr@...b.auug.org.au,
        linux-kernel@...r.kernel.org, linux-next@...r.kernel.org,
        linux-kselftest@...r.kernel.org, skhan@...uxfoundation.org
Subject: Re: [PATCH] software node: introduce CONFIG_KUNIT_DRIVER_PE_TEST

On Tue, 14 Jan 2020, Randy Dunlap wrote:

> Hi Alan,
> 
> On 1/14/20 8:09 AM, Alan Maguire wrote:
> > currently the property entry kunit tests are built if CONFIG_KUNIT=y.
> > This will cause warnings when merged with the kunit tree that now
> > supports tristate CONFIG_KUNIT.  While the tests appear to compile
> > as a module, we get a warning about missing module license.
> > 
> > It's better to have a per-test suite CONFIG variable so that
> > we can do selective building of kunit-based suites, and can
> > also avoid merge issues like this.
> > 
> > Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
> 
> Reported-by: Randy Dunlap <rdunlap@...radead.org>
>

Apologies for missing you out here.
 
> > Fixes: c032ace71c29 ("software node: add basic tests for property entries")
> > Signed-off-by: Alan Maguire <alan.maguire@...cle.com>
> > ---
> >  drivers/base/test/Kconfig  | 3 +++
> >  drivers/base/test/Makefile | 2 +-
> >  2 files changed, 4 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/base/test/Kconfig b/drivers/base/test/Kconfig
> > index 86e85da..d29ae95 100644
> > --- a/drivers/base/test/Kconfig
> > +++ b/drivers/base/test/Kconfig
> > @@ -8,3 +8,6 @@ config TEST_ASYNC_DRIVER_PROBE
> >  	  The module name will be test_async_driver_probe.ko
> >  
> >  	  If unsure say N.
> > +config KUNIT_DRIVER_PE_TEST
> > +	bool "KUnit Tests for property entry API"
> > +	depends on KUNIT
> 
> Why is this bool instead of tristate?
>

The support for building kunit and kunit tests as modules has not merged 
into linux-next yet, so if we set the option to tristate the build would
fail for allmodconfig builds.   Once it's merged we can revisit though; I 
should have mentioned this, thanks for reminding me!

Alan
 
> > diff --git a/drivers/base/test/Makefile b/drivers/base/test/Makefile
> > index 2214310..3ca5636 100644
> > --- a/drivers/base/test/Makefile
> > +++ b/drivers/base/test/Makefile
> > @@ -1,4 +1,4 @@
> >  # SPDX-License-Identifier: GPL-2.0
> >  obj-$(CONFIG_TEST_ASYNC_DRIVER_PROBE)	+= test_async_driver_probe.o
> >  
> > -obj-$(CONFIG_KUNIT) += property-entry-test.o
> > +obj-$(CONFIG_KUNIT_DRIVER_PE_TEST) += property-entry-test.o
> > 
> 
> thanks.
> -- 
> ~Randy
> 
>