Implement the new get_pci_epc() operation for the EPF vNTB driver to
expose its associated EPC device to NTB subsystems.

Signed-off-by: Koichiro Den <den@valinux.co.jp>
---
 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 aa44dcd5c943..93fd724a8faa 100644
--- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c
@@ -1561,6 +1561,15 @@ static int vntb_epf_link_disable(struct ntb_dev *ntb)
 	return 0;
 }
 
+static struct pci_epc *vntb_epf_get_pci_epc(struct ntb_dev *ntb)
+{
+	struct epf_ntb *ndev = ntb_ndev(ntb);
+
+	if (!ndev || !ndev->epf)
+		return NULL;
+	return ndev->epf->epc;
+}
+
 static const struct ntb_dev_ops vntb_epf_ops = {
 	.mw_count		= vntb_epf_mw_count,
 	.spad_count		= vntb_epf_spad_count,
@@ -1582,6 +1591,7 @@ 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_pci_epc		= vntb_epf_get_pci_epc,
 };
 
 static int pci_vntb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
-- 
2.48.1