virtio-ccw: wire up ->bus_name callback

Return the bus id of the ccw proxy device. This makes 'ethtool -i'
show a more useful value than 'virtio' in the bus-info field.

Acked-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c
index 1a738fe9f26bcd9df608e2863e68e4ffcd86fb01..74c328321889b1fa3265385ebe9d0a201a031b90 100644 (file)
--- a/drivers/s390/virtio/virtio_ccw.c
+++ b/drivers/s390/virtio/virtio_ccw.c
@@ -975,6 +975,13 @@ static void virtio_ccw_set_status(struct virtio_device *vdev, u8 status)
        kfree(ccw);
 }
 
+static const char *virtio_ccw_bus_name(struct virtio_device *vdev)
+{
+       struct virtio_ccw_device *vcdev = to_vc_device(vdev);
+
+       return dev_name(&vcdev->cdev->dev);
+}
+
 static const struct virtio_config_ops virtio_ccw_config_ops = {
        .get_features = virtio_ccw_get_features,
        .finalize_features = virtio_ccw_finalize_features,
@@ -985,6 +992,7 @@ static const struct virtio_config_ops virtio_ccw_config_ops = {
        .reset = virtio_ccw_reset,
        .find_vqs = virtio_ccw_find_vqs,
        .del_vqs = virtio_ccw_del_vqs,
+       .bus_name = virtio_ccw_bus_name,
 };