From: Louis Chauvet <[email protected]> As the configuration will be used by userspace, add a validator to avoid creating a broken DRM device.
For the moment, the function always returns true, but rules will be added in future patches. Signed-off-by: José Expósito <[email protected]> Signed-off-by: Louis Chauvet <[email protected]> --- drivers/gpu/drm/vkms/tests/vkms_config_test.c | 2 ++ drivers/gpu/drm/vkms/vkms_config.c | 5 +++++ drivers/gpu/drm/vkms/vkms_config.h | 10 ++++++++++ 3 files changed, 17 insertions(+) diff --git a/drivers/gpu/drm/vkms/tests/vkms_config_test.c b/drivers/gpu/drm/vkms/tests/vkms_config_test.c index 526800b1afb4..66c2c6cb4a0e 100644 --- a/drivers/gpu/drm/vkms/tests/vkms_config_test.c +++ b/drivers/gpu/drm/vkms/tests/vkms_config_test.c @@ -54,6 +54,8 @@ static void vkms_config_test_default_config(struct kunit *test) KUNIT_EXPECT_EQ(test, config->writeback, params->enable_writeback); KUNIT_EXPECT_EQ(test, config->overlay, params->enable_overlay); + KUNIT_EXPECT_TRUE(test, vkms_config_is_valid(config)); + vkms_config_destroy(config); } diff --git a/drivers/gpu/drm/vkms/vkms_config.c b/drivers/gpu/drm/vkms/vkms_config.c index 11b0e539920b..67f71d29596e 100644 --- a/drivers/gpu/drm/vkms/vkms_config.c +++ b/drivers/gpu/drm/vkms/vkms_config.c @@ -47,6 +47,11 @@ void vkms_config_destroy(struct vkms_config *config) kfree(config); } +bool vkms_config_is_valid(struct vkms_config *config) +{ + return true; +} + static int vkms_config_show(struct seq_file *m, void *data) { struct drm_debugfs_entry *entry = m->private; diff --git a/drivers/gpu/drm/vkms/vkms_config.h b/drivers/gpu/drm/vkms/vkms_config.h index 3e4f39cbe2e2..963f22b9b4bd 100644 --- a/drivers/gpu/drm/vkms/vkms_config.h +++ b/drivers/gpu/drm/vkms/vkms_config.h @@ -64,6 +64,16 @@ vkms_config_get_device_name(struct vkms_config *config) return config->dev_name; } +/** + * vkms_config_is_valid() - Validate a configuration + * @config: Configuration to validate + * + * Returns: + * Whether the configuration is valid or not. + * For example, a configuration without primary planes is not valid. + */ +bool vkms_config_is_valid(struct vkms_config *config); + /** * vkms_config_register_debugfs() - Register a debugfs file to show the device's * configuration -- 2.48.1
