> From: Nicolin Chen <nicolinc@xxxxxxxxxx> > Sent: Thursday, February 2, 2023 3:05 PM > > Remove the vdev->iommufd_attached check, since the kernel can internally > handle a replacement of the IO page table now. > > Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx> > --- > drivers/vfio/iommufd.c | 3 --- > 1 file changed, 3 deletions(-) > > diff --git a/drivers/vfio/iommufd.c b/drivers/vfio/iommufd.c > index 7e09defbcffe..f9e89b3eef69 100644 > --- a/drivers/vfio/iommufd.c > +++ b/drivers/vfio/iommufd.c > @@ -111,9 +111,6 @@ int vfio_iommufd_physical_attach_ioas(struct > vfio_device *vdev, u32 *pt_id) > return 0; > } > > - if (vdev->iommufd_attached) > - return -EBUSY; > - > rc = iommufd_device_attach(vdev->iommufd_device, pt_id); > if (rc) > return rc; also update vfio uapi description to explain the replace semantics.
