virtio_scsi: drop scan callback

Enable VQs early like we do for restore.
This makes it possible to drop the scan callback,
moving scanning into the probe function, and making
code simpler.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index 0227d39f45f0bbda77ff06a4692c347393cba056..b83846fc785964a93b9885e690b6de2f72175b4f 100644 (file)
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -860,17 +860,6 @@ static void virtscsi_init_vq(struct virtio_scsi_vq *virtscsi_vq,
        virtscsi_vq->vq = vq;
 }
 
-static void virtscsi_scan(struct virtio_device *vdev)
-{
-       struct Scsi_Host *shost = virtio_scsi_host(vdev);
-       struct virtio_scsi *vscsi = shost_priv(shost);
-
-       if (virtio_has_feature(vdev, VIRTIO_SCSI_F_HOTPLUG))
-               virtscsi_kick_event_all(vscsi);
-
-       scsi_scan_host(shost);
-}
-
 static void virtscsi_remove_vqs(struct virtio_device *vdev)
 {
        struct Scsi_Host *sh = virtio_scsi_host(vdev);
@@ -1007,10 +996,13 @@ static int virtscsi_probe(struct virtio_device *vdev)
        err = scsi_add_host(shost, &vdev->dev);
        if (err)
                goto scsi_add_host_failed;
-       /*
-        * scsi_scan_host() happens in virtscsi_scan() via virtio_driver->scan()
-        * after VIRTIO_CONFIG_S_DRIVER_OK has been set..
-        */
+
+       virtio_device_ready(vdev);
+
+       if (virtio_has_feature(vdev, VIRTIO_SCSI_F_HOTPLUG))
+               virtscsi_kick_event_all(vscsi);
+
+       scsi_scan_host(shost);
        return 0;
 
 scsi_add_host_failed:
@@ -1090,7 +1082,6 @@ static struct virtio_driver virtio_scsi_driver = {
        .driver.owner = THIS_MODULE,
        .id_table = id_table,
        .probe = virtscsi_probe,
-       .scan = virtscsi_scan,
 #ifdef CONFIG_PM_SLEEP
        .freeze = virtscsi_freeze,
        .restore = virtscsi_restore,