On 18.12.2017 09:37, Christian Borntraeger wrote:
> We need to disable the pm callbacks if CONFIG_PM is not set.
> 
> Signed-off-by: Christian Borntraeger <[email protected]>
> ---
> Cornelia, you might want to squash this into the original commit.
> 
>  drivers/s390/virtio/virtio_ccw.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/s390/virtio/virtio_ccw.c 
> b/drivers/s390/virtio/virtio_ccw.c
> index 330b3fa3430a..985184ebda45 100644
> --- a/drivers/s390/virtio/virtio_ccw.c
> +++ b/drivers/s390/virtio/virtio_ccw.c
> @@ -1315,6 +1315,7 @@ static struct ccw_device_id virtio_ids[] = {
>       {},
>  };
>  
> +#ifdef CONFIG_PM_SLEEP
>  static int virtio_ccw_freeze(struct ccw_device *cdev)
>  {
>       struct virtio_ccw_device *vcdev = dev_get_drvdata(&cdev->dev);
> @@ -1333,6 +1334,7 @@ static int virtio_ccw_restore(struct ccw_device *cdev)
>  
>       return virtio_device_restore(&vcdev->vdev);
>  }
> +#endif
>  
>  static struct ccw_driver virtio_ccw_driver = {
>       .driver = {
> @@ -1346,9 +1348,11 @@ static struct ccw_driver virtio_ccw_driver = {
>       .set_online = virtio_ccw_online,
>       .notify = virtio_ccw_cio_notify,
>       .int_class = IRQIO_VIR,
> +#ifdef CONFIG_PM_SLEEP
>       .freeze = virtio_ccw_freeze,
>       .thaw = virtio_ccw_restore,
>       .restore = virtio_ccw_restore,
> +#endif
>  };

Some other drivers rather seem to test CONFIG_HIBERNATE_CALLBACKS ...
would that be a more appropriate config flag here?

 Thomas
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