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path: root/drivers/virtio/virtio_pci.c
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Diffstat (limited to 'drivers/virtio/virtio_pci.c')
-rw-r--r--drivers/virtio/virtio_pci.c54
1 files changed, 2 insertions, 52 deletions
diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index f39f4e772e6a..d34ebfa604f3 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -57,9 +57,6 @@ struct virtio_pci_device
/* Vectors allocated, excluding per-vq vectors if any */
unsigned msix_used_vectors;
- /* Status saved during hibernate/restore */
- u8 saved_status;
-
/* Whether we have vector per vq */
bool per_vq_vectors;
};
@@ -764,16 +761,9 @@ static int virtio_pci_freeze(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct virtio_pci_device *vp_dev = pci_get_drvdata(pci_dev);
- struct virtio_driver *drv;
int ret;
- drv = container_of(vp_dev->vdev.dev.driver,
- struct virtio_driver, driver);
-
- ret = 0;
- vp_dev->saved_status = vp_get_status(&vp_dev->vdev);
- if (drv && drv->freeze)
- ret = drv->freeze(&vp_dev->vdev);
+ ret = virtio_device_freeze(&vp_dev->vdev);
if (!ret)
pci_disable_device(pci_dev);
@@ -784,54 +774,14 @@ static int virtio_pci_restore(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct virtio_pci_device *vp_dev = pci_get_drvdata(pci_dev);
- struct virtio_driver *drv;
- unsigned status = 0;
int ret;
- drv = container_of(vp_dev->vdev.dev.driver,
- struct virtio_driver, driver);
-
ret = pci_enable_device(pci_dev);
if (ret)
return ret;
pci_set_master(pci_dev);
- /* We always start by resetting the device, in case a previous
- * driver messed it up. */
- vp_reset(&vp_dev->vdev);
-
- /* Acknowledge that we've seen the device. */
- status |= VIRTIO_CONFIG_S_ACKNOWLEDGE;
- vp_set_status(&vp_dev->vdev, status);
-
- /* Maybe driver failed before freeze.
- * Restore the failed status, for debugging. */
- status |= vp_dev->saved_status & VIRTIO_CONFIG_S_FAILED;
- vp_set_status(&vp_dev->vdev, status);
-
- if (!drv)
- return 0;
-
- /* We have a driver! */
- status |= VIRTIO_CONFIG_S_DRIVER;
- vp_set_status(&vp_dev->vdev, status);
-
- vp_finalize_features(&vp_dev->vdev);
-
- if (drv->restore) {
- ret = drv->restore(&vp_dev->vdev);
- if (ret) {
- status |= VIRTIO_CONFIG_S_FAILED;
- vp_set_status(&vp_dev->vdev, status);
- return ret;
- }
- }
-
- /* Finally, tell the device we're all set */
- status |= VIRTIO_CONFIG_S_DRIVER_OK;
- vp_set_status(&vp_dev->vdev, status);
-
- return ret;
+ return virtio_device_restore(&vp_dev->vdev);
}
static const struct dev_pm_ops virtio_pci_pm_ops = {