From: Alex Williamson <alex.williamson@redhat.com>
Date: Tue, 24 Mar 2020 15:28:26 +0000 (-0600)
Subject: vfio/pci: Implement match ops
X-Git-Tag: v5.7-rc1~94^2~2^2~5
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=467c084f9ad393899dc7ce527dd03ee588640ae1;p=thirdparty%2Flinux.git

vfio/pci: Implement match ops

This currently serves the same purpose as the default implementation
but will be expanded for additional functionality.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---

diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 379a02c36e377..2ec6c31d0ab05 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -1278,6 +1278,13 @@ static void vfio_pci_request(void *device_data, unsigned int count)
 	mutex_unlock(&vdev->igate);
 }
 
+static int vfio_pci_match(void *device_data, char *buf)
+{
+	struct vfio_pci_device *vdev = device_data;
+
+	return !strcmp(pci_name(vdev->pdev), buf);
+}
+
 static const struct vfio_device_ops vfio_pci_ops = {
 	.name		= "vfio-pci",
 	.open		= vfio_pci_open,
@@ -1287,6 +1294,7 @@ static const struct vfio_device_ops vfio_pci_ops = {
 	.write		= vfio_pci_write,
 	.mmap		= vfio_pci_mmap,
 	.request	= vfio_pci_request,
+	.match		= vfio_pci_match,
 };
 
 static int vfio_pci_reflck_attach(struct vfio_pci_device *vdev);