Re: [RFC PATCH v4 14/38] PCI: endpoint: pci-epf-vntb: Implement .get_private_data() callback

Frank Li
2026-01-19T20:27:48Z

On Sun, Jan 18, 2026 at 10:54:16PM +0900, Koichiro Den wrote:
> Implement the new get_private_data() operation for the EPF vNTB driver
> to expose its associated EPC device to NTB subsystems.
>
> Signed-off-by: Koichiro Den <den@valinux.co.jp>
> ---

Reviewed-by: Frank Li <Frank.Li@nxp.com>

> drivers/pci/endpoint/functions/pci-epf-vntb.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c
> index 98128c2c5079..9fbc27000f77 100644
> --- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
> +++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c
> @@ -1747,6 +1747,15 @@ static int vntb_epf_link_disable(struct ntb_dev *ntb)
> return 0;
> }
>
> +static void *vntb_epf_get_private_data(struct ntb_dev *ndev)
> +{
> + struct epf_ntb *ntb = ntb_ndev(ndev);
> +
> + if (!ntb || !ntb->epf)
> + return NULL;
> + return ntb->epf->epc;
> +}
> +
> static const struct ntb_dev_ops vntb_epf_ops = {
> .mw_count = vntb_epf_mw_count,
> .spad_count = vntb_epf_spad_count,
> @@ -1771,6 +1780,7 @@ static const struct ntb_dev_ops vntb_epf_ops = {
> .db_clear_mask = vntb_epf_db_clear_mask,
> .db_clear = vntb_epf_db_clear,
> .link_disable = vntb_epf_link_disable,
> + .get_private_data = vntb_epf_get_private_data,
> };
>
> static int pci_vntb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
> --
> 2.51.0
>