2022-11-30 08:18:18

by Javier Martinez Canillas

[permalink] [raw]
Subject: Re: [PATCH v2 01/17] drm/tests: helpers: Move the helper header to include/drm

On 11/28/22 15:53, Maxime Ripard wrote:
> We'll need to use those helpers from drivers too, so let's move it to a
> more visible location.
>
> Signed-off-by: Maxime Ripard <[email protected]>
> ---
> drivers/gpu/drm/tests/drm_client_modeset_test.c | 3 +--
> drivers/gpu/drm/tests/drm_kunit_helpers.c | 3 +--
> drivers/gpu/drm/tests/drm_modes_test.c | 3 +--
> drivers/gpu/drm/tests/drm_probe_helper_test.c | 3 +--
> {drivers/gpu/drm/tests => include/drm}/drm_kunit_helpers.h | 0
> 5 files changed, 4 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/tests/drm_client_modeset_test.c b/drivers/gpu/drm/tests/drm_client_modeset_test.c
> index 52929536a158..ed2f62e92fea 100644
> --- a/drivers/gpu/drm/tests/drm_client_modeset_test.c
> +++ b/drivers/gpu/drm/tests/drm_client_modeset_test.c
> @@ -8,12 +8,11 @@
> #include <drm/drm_connector.h>
> #include <drm/drm_edid.h>
> #include <drm/drm_drv.h>
> +#include <drm/drm_kunit_helpers.h>

I wonder if now that this header was moved outside of the tests directory,
if we should add stub functions in the header file that are just defined
but do nothing if CONFIG_DRM_KUNIT_TEST isn't enabled. So that including
it in drivers will be a no-op.

Or do you plan to conditionally include this header file in drivers? So
that is only included when CONFIG_DRM_KUNIT_TEST is enabled?

Another thing that wondered is if we want a different namespace for this
header, i.e: <drm/testing/drm_kunit_helpers.h>, to make it clear that is
not part of the DRM API but just for testing helpers.

But these are open questions really, and they can be done as follow-up:

Reviewed-by: Javier Martinez Canillas <[email protected]>

--
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat


2022-12-01 10:36:45

by Maxime Ripard

[permalink] [raw]
Subject: Re: [PATCH v2 01/17] drm/tests: helpers: Move the helper header to include/drm

Hi Javier,

On Wed, Nov 30, 2022 at 09:00:03AM +0100, Javier Martinez Canillas wrote:
> On 11/28/22 15:53, Maxime Ripard wrote:
> > We'll need to use those helpers from drivers too, so let's move it to a
> > more visible location.
> >
> > Signed-off-by: Maxime Ripard <[email protected]>
> > ---
> > drivers/gpu/drm/tests/drm_client_modeset_test.c | 3 +--
> > drivers/gpu/drm/tests/drm_kunit_helpers.c | 3 +--
> > drivers/gpu/drm/tests/drm_modes_test.c | 3 +--
> > drivers/gpu/drm/tests/drm_probe_helper_test.c | 3 +--
> > {drivers/gpu/drm/tests => include/drm}/drm_kunit_helpers.h | 0
> > 5 files changed, 4 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/tests/drm_client_modeset_test.c b/drivers/gpu/drm/tests/drm_client_modeset_test.c
> > index 52929536a158..ed2f62e92fea 100644
> > --- a/drivers/gpu/drm/tests/drm_client_modeset_test.c
> > +++ b/drivers/gpu/drm/tests/drm_client_modeset_test.c
> > @@ -8,12 +8,11 @@
> > #include <drm/drm_connector.h>
> > #include <drm/drm_edid.h>
> > #include <drm/drm_drv.h>
> > +#include <drm/drm_kunit_helpers.h>
>
> I wonder if now that this header was moved outside of the tests directory,
> if we should add stub functions in the header file that are just defined
> but do nothing if CONFIG_DRM_KUNIT_TEST isn't enabled. So that including
> it in drivers will be a no-op.
>
> Or do you plan to conditionally include this header file in drivers? So
> that is only included when CONFIG_DRM_KUNIT_TEST is enabled?

I'm not entirely sure. I'd expect only the tests to include it, and thus
would depend on DRM_KUNIT_TEST already. But we can always add the stubs
if it's ever included in a different context.

> Another thing that wondered is if we want a different namespace for this
> header, i.e: <drm/testing/drm_kunit_helpers.h>, to make it clear that is
> not part of the DRM API but just for testing helpers.

If there's a single header, I don't think we need to create the
directory. This is also something we can consolidate later on if needed.

> But these are open questions really, and they can be done as follow-up:
>
> Reviewed-by: Javier Martinez Canillas <[email protected]>

Thanks :)
Maxime


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2022-12-01 11:38:49

by Javier Martinez Canillas

[permalink] [raw]
Subject: Re: [PATCH v2 01/17] drm/tests: helpers: Move the helper header to include/drm

Hello Maxime,

On 12/1/22 11:27, Maxime Ripard wrote:

[...]

>>
>> I wonder if now that this header was moved outside of the tests directory,
>> if we should add stub functions in the header file that are just defined
>> but do nothing if CONFIG_DRM_KUNIT_TEST isn't enabled. So that including
>> it in drivers will be a no-op.
>>
>> Or do you plan to conditionally include this header file in drivers? So
>> that is only included when CONFIG_DRM_KUNIT_TEST is enabled?
>
> I'm not entirely sure. I'd expect only the tests to include it, and thus
> would depend on DRM_KUNIT_TEST already. But we can always add the stubs
> if it's ever included in a different context.
>
>> Another thing that wondered is if we want a different namespace for this
>> header, i.e: <drm/testing/drm_kunit_helpers.h>, to make it clear that is
>> not part of the DRM API but just for testing helpers.
>
> If there's a single header, I don't think we need to create the
> directory. This is also something we can consolidate later on if needed.
>

Agree on both. It's better to land as is and then figure out if needs
to be changed once other drivers add more tests.

>> But these are open questions really, and they can be done as follow-up:
>>
>> Reviewed-by: Javier Martinez Canillas <[email protected]>
>
> Thanks :)

You are welcome!

--
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat