[PATCH v2 07/22] vfio/pci: Notify PCI subsystem about devices preserved across Live Update

[Vipin Sharma]

On Thu, Jan 29, 2026 at 09:24:54PM +0000, David Matlack wrote:
> diff --git a/drivers/vfio/pci/vfio_pci_liveupdate.c b/drivers/vfio/pci/vfio_pci_liveupdate.c
> @@ -192,10 +200,24 @@ static struct liveupdate_file_handler vfio_pci_liveupdate_fh = {
>  
>  int __init vfio_pci_liveupdate_init(void)
>  {
> +	int ret;
> +
>  	if (!liveupdate_enabled())
>  		return 0;
>  
> -	return liveupdate_register_file_handler(&vfio_pci_liveupdate_fh);
> +	ret = liveupdate_register_file_handler(&vfio_pci_liveupdate_fh);
> +	if (ret)
> +		return ret;
> +
> +	ret = pci_liveupdate_register_fh(&vfio_pci_liveupdate_fh);

May be we should rename pci_liveupdate_register_fh() to something like
pci_register_to_liveupdate_flb(). In the current way, it is confusing to
why same handler is getting registered at two places.

Above name will also make it similar to IOMMU series as well
  https://lore.kernel.org/kvm/20260203220948.2176157-2-skhawaja@google.com/