> +++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
> @@ -45,9 +45,11 @@ static void virtio_gpu_config_changed_work_func(struct work_struct *work)
> if (events_read & VIRTIO_GPU_EVENT_DISPLAY) {
> if (vgdev->has_edid)
> virtio_gpu_cmd_get_edids(vgdev);
> - virtio_gpu_cmd_get_display_info(vgdev);
> - virtio_gpu_notify(vgdev);
> - drm_helper_hpd_irq_event(vgdev->ddev);
> + if (vgdev->num_scanouts) {
> + virtio_gpu_cmd_get_display_info(vgdev);
> + virtio_gpu_notify(vgdev);
> + drm_helper_hpd_irq_event(vgdev->ddev);
> + }
I'd suggest to make the edid lines conditional too.
> - if (IS_ENABLED(CONFIG_DRM_VIRTIO_GPU_KMS) || !vgdev->num_scanouts) {
> + if (!IS_ENABLED(CONFIG_DRM_VIRTIO_GPU_KMS) || !vgdev->num_scanouts) {
> DRM_INFO("KMS disabled\n");
> vgdev->num_scanouts = 0;
> vgdev->has_edid = false;
Doesn't make a difference because has_edid gets set to false here,
but IMHO it is less confusing that way.
take care,
Gerd
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