diff options
Diffstat (limited to 'drivers/s390/cio/vfio_ccw_ops.c')
| -rw-r--r-- | drivers/s390/cio/vfio_ccw_ops.c | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c index 559ca1805592..6ae4d012d800 100644 --- a/drivers/s390/cio/vfio_ccw_ops.c +++ b/drivers/s390/cio/vfio_ccw_ops.c @@ -44,13 +44,6 @@ static void vfio_ccw_dma_unmap(struct vfio_device *vdev, u64 iova, u64 length) vfio_ccw_mdev_reset(private); } -static unsigned int vfio_ccw_get_available(struct mdev_type *mtype) -{ - struct vfio_ccw_private *private = dev_get_drvdata(mtype->parent->dev); - - return atomic_read(&private->avail); -} - static int vfio_ccw_mdev_init_dev(struct vfio_device *vdev) { struct vfio_ccw_private *private = @@ -68,9 +61,6 @@ static int vfio_ccw_mdev_probe(struct mdev_device *mdev) if (private->state == VFIO_CCW_STATE_NOT_OPER) return -ENODEV; - if (atomic_dec_if_positive(&private->avail) < 0) - return -EPERM; - ret = vfio_init_device(&private->vdev, &mdev->dev, &vfio_ccw_dev_ops); if (ret) return ret; @@ -88,7 +78,6 @@ static int vfio_ccw_mdev_probe(struct mdev_device *mdev) err_put_vdev: vfio_put_device(&private->vdev); - atomic_inc(&private->avail); return ret; } @@ -130,8 +119,6 @@ static void vfio_ccw_mdev_remove(struct mdev_device *mdev) * cycle. */ wait_for_completion(&private->release_comp); - - atomic_inc(&private->avail); } static int vfio_ccw_mdev_open_device(struct vfio_device *vdev) @@ -605,6 +592,7 @@ static const struct vfio_device_ops vfio_ccw_dev_ops = { struct mdev_driver vfio_ccw_mdev_driver = { .device_api = VFIO_DEVICE_API_CCW_STRING, + .max_instances = 1, .driver = { .name = "vfio_ccw_mdev", .owner = THIS_MODULE, @@ -612,5 +600,4 @@ struct mdev_driver vfio_ccw_mdev_driver = { }, .probe = vfio_ccw_mdev_probe, .remove = vfio_ccw_mdev_remove, - .get_available = vfio_ccw_get_available, }; |