DRM_SHADOW_PLANE_MAX_HEIGHT
max_height = max_t(unsigned long, mode->vdisplay, DRM_SHADOW_PLANE_MAX_HEIGHT);
max_height = max_t(unsigned long, mode->vdisplay, DRM_SHADOW_PLANE_MAX_HEIGHT);
max_height = max_t(unsigned long, height, DRM_SHADOW_PLANE_MAX_HEIGHT);
max_height = max_t(unsigned long, height, DRM_SHADOW_PLANE_MAX_HEIGHT);
max_height = max_t(unsigned long, height, DRM_SHADOW_PLANE_MAX_HEIGHT);
max_height = max_t(unsigned long, height, DRM_SHADOW_PLANE_MAX_HEIGHT);
drm->mode_config.max_height = max(adev->width, DRM_SHADOW_PLANE_MAX_HEIGHT);