Introduce a test to cover the creation of framebuffer with modifier on a device that doesn't support it. Signed-off-by: Carlos Eduardo Gallo Filho <gcarlos@xxxxxxxxxxx> --- v2: - Reorder kunit cases alphabetically. --- drivers/gpu/drm/tests/drm_framebuffer_test.c | 28 ++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_framebuffer_test.c b/drivers/gpu/drm/tests/drm_framebuffer_test.c index eb76a71644e9..8a9b6d08d639 100644 --- a/drivers/gpu/drm/tests/drm_framebuffer_test.c +++ b/drivers/gpu/drm/tests/drm_framebuffer_test.c @@ -403,8 +403,36 @@ static void drm_framebuffer_test_to_desc(const struct drm_framebuffer_test *t, c KUNIT_ARRAY_PARAM(drm_framebuffer_create, drm_framebuffer_create_cases, drm_framebuffer_test_to_desc); +/* + * This test is very similar to drm_test_framebuffer_create, except that it + * set dev->mode_config.fb_modifiers_not_supported member to 1, covering + * the case of trying to create a framebuffer with modifiers without the + * device really supporting it. + */ +static void drm_test_framebuffer_modifiers_not_supported(struct kunit *test) +{ + struct drm_framebuffer_test_priv *priv = test->priv; + struct drm_device *dev = &priv->dev; + int buffer_created = 0; + + /* A valid cmd with modifier */ + struct drm_mode_fb_cmd2 cmd = { + .width = MAX_WIDTH, .height = MAX_HEIGHT, + .pixel_format = DRM_FORMAT_ABGR8888, .handles = { 1, 0, 0 }, + .offsets = { UINT_MAX / 2, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 }, + .flags = DRM_MODE_FB_MODIFIERS, + }; + + priv->private = &buffer_created; + dev->mode_config.fb_modifiers_not_supported = 1; + + drm_internal_framebuffer_create(dev, &cmd, NULL); + KUNIT_EXPECT_EQ(test, 0, buffer_created); +} + static struct kunit_case drm_framebuffer_tests[] = { KUNIT_CASE_PARAM(drm_test_framebuffer_create, drm_framebuffer_create_gen_params), + KUNIT_CASE(drm_test_framebuffer_modifiers_not_supported), { } }; -- 2.41.0