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From:   Jani Nikula <jani.nikula@linux.intel.com>
To:     Maxime Ripard <maxime@cerno.tech>,
        Jernej Skrabec <jernej.skrabec@gmail.com>,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        Ben Skeggs <bskeggs@redhat.com>,
        David Airlie <airlied@linux.ie>,
        Maxime Ripard <mripard@kernel.org>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Emma Anholt <emma@anholt.net>,
        Karol Herbst <kherbst@redhat.com>,
        Samuel Holland <samuel@sholland.org>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        Daniel Vetter <daniel@ffwll.ch>, Lyude Paul <lyude@redhat.com>,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
        Chen-Yu Tsai <wens@csie.org>
Cc:     Hans de Goede <hdegoede@redhat.com>, nouveau@lists.freedesktop.org,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Dave Stevenson <dave.stevenson@raspberrypi.com>,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        Phil Elwell <phil@raspberrypi.com>,
        intel-gfx@lists.freedesktop.org,
        Noralf =?utf-8?Q?Tr=C3=B8nnes?= <noralf@tronnes.org>,
        Dom Cobley <dom@raspberrypi.com>, linux-sunxi@lists.linux.dev,
        Maxime Ripard <maxime@cerno.tech>,
        Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>,
        dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v2 13/33] drm/client: Add some tests for
 drm_connector_pick_cmdline_mode()
In-Reply-To: <20220728-rpi-analog-tv-properties-v2-13-f733a0ed9f90@cerno.tech>
Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo
References: <20220728-rpi-analog-tv-properties-v2-0-f733a0ed9f90@cerno.tech>
 <20220728-rpi-analog-tv-properties-v2-13-f733a0ed9f90@cerno.tech>
Date:   Fri, 23 Sep 2022 14:59:23 +0300
Message-ID: <875yhe47z8.fsf@intel.com>
MIME-Version: 1.0
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Precedence: bulk

On Thu, 22 Sep 2022, Maxime Ripard <maxime@cerno.tech> wrote:
> drm_connector_pick_cmdline_mode() is in charge of finding a proper
> drm_display_mode from the definition we got in the video= command line
> argument.
>
> Let's add some unit tests to make sure we're not getting any regressions
> there.
>
> Signed-off-by: Maxime Ripard <maxime@cerno.tech>
>
> diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c
> index bbc535cc50dd..d553e793e673 100644
> --- a/drivers/gpu/drm/drm_client_modeset.c
> +++ b/drivers/gpu/drm/drm_client_modeset.c
> @@ -1237,3 +1237,7 @@ int drm_client_modeset_dpms(struct drm_client_dev *client, int mode)
>  	return ret;
>  }
>  EXPORT_SYMBOL(drm_client_modeset_dpms);
> +
> +#ifdef CONFIG_DRM_KUNIT_TEST
> +#include "tests/drm_client_modeset_test.c"
> +#endif
> diff --git a/drivers/gpu/drm/tests/drm_client_modeset_test.c b/drivers/gpu/drm/tests/drm_client_modeset_test.c
> new file mode 100644
> index 000000000000..46335de7bc6b
> --- /dev/null
> +++ b/drivers/gpu/drm/tests/drm_client_modeset_test.c

[snip]

> +MODULE_AUTHOR("Maxime Ripard <mripard@kernel.org>");
> +MODULE_LICENSE("GPL");

I think these annotations are incompatible with including the unit test,
and, in this case, affect drm.ko.

And we'll have two kinds of tests, those that get built via
tests/Makefile, and those that get included, like this one, which should
not be mentioned in tests/Makefile.

BR,
Jani.

-- 
Jani Nikula, Intel Open Source Graphics Center