[PATCH v3 2/2] drm/uapi: add explicit virtgpu context debug name

Dmitry Osipenko dmitry.osipenko at collabora.com
Sat Nov 11 22:37:11 UTC 2023


On 10/18/23 21:17, Gurchetan Singh wrote:
> +		case VIRTGPU_CONTEXT_PARAM_DEBUG_NAME:
> +			if (vfpriv->explicit_debug_name) {
> +				ret = -EINVAL;
> +				goto out_unlock;
> +			}
> +
> +			ret = strncpy_from_user(vfpriv->debug_name,
> +						u64_to_user_ptr(value),
> +						DEBUG_NAME_MAX_LEN - 1);
> +
> +			if (ret < 0) {
> +				ret = -EFAULT;
> +				goto out_unlock;
> +			}
> +
> +			vfpriv->explicit_debug_name = true;
> +			break;

Spotted a problem here. The ret needs to be set to zero on success. I'll
send the fix shortly. Gurchetan you should've been getting the
DRM_IOCTL_VIRTGPU_CONTEXT_INIT failure from gfxstream when you tested
this patch, haven't you?

Also noticed that the patch title says "drm/uapi" instead of
"drm/virtio". My bad for not noticing it earlier. Please be more careful
next time too :)

-- 
Best regards,
Dmitry



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