vfio-mdev: Make mdev_parent private

Rather than hoping for good behavior by marking some elements
internal, enforce it by making the entire structure private and
creating an accessor function for the one useful external field.

Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Jike Song <jike.song@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed by: Kirti Wankhede <kwankhede@nvidia.com>

1 files changed, 2 insertions, 13 deletions

diff --git a/include/linux/mdev.h b/include/linux/mdev.h
index 853bb78e5866..f586222b6c25 100644
--- a/include/linux/mdev.h
+++ b/include/linux/mdev.h
@@ -13,19 +13,6 @@
 #ifndef MDEV_H
 #define MDEV_H
 
-/* Parent device */
-struct mdev_parent {
-        struct device                   *dev;
-        const struct mdev_parent_ops    *ops;
-
-        /* internal */
-        struct kref             ref;
-        struct mutex            lock;
-        struct list_head        next;
-        struct kset             *mdev_types_kset;
-        struct list_head        type_list;
-};
-
 /* Mediated device */
 struct mdev_device {
         struct device           dev;
@@ -165,4 +152,6 @@ extern void mdev_unregister_device(struct device *dev);
 extern int  mdev_register_driver(struct mdev_driver *drv, struct module *owner);
 extern void mdev_unregister_driver(struct mdev_driver *drv);
 
+extern struct device *mdev_parent_dev(struct mdev_device *mdev);
+
 #endif /* MDEV_H */