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vfio-mdev: Make mdev_parent private

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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>
This commit is contained in:
Alex Williamson
2016-12-30 08:13:41 -07:00
parent 42930553a7
commit 9372e6feaa
6 changed files with 23 additions and 15 deletions
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6
drivers/vfio/mdev/mdev_core.c
View File

@@ -30,6 +30,12 @@ static struct class_compat *mdev_bus_compat_class;
static LIST_HEAD(mdev_list);
static DEFINE_MUTEX(mdev_list_lock);
struct device *mdev_parent_dev(struct mdev_device *mdev)
{
return mdev->parent->dev;
}
EXPORT_SYMBOL(mdev_parent_dev);
static int _find_mdev_device(struct device *dev, void *data)
{
struct mdev_device *mdev;

10
drivers/vfio/mdev/mdev_private.h
View File

@@ -16,6 +16,16 @@
int mdev_bus_register(void);
void mdev_bus_unregister(void);
struct mdev_parent {
struct device *dev;
const struct mdev_parent_ops *ops;
struct kref ref;
struct mutex lock;
struct list_head next;
struct kset *mdev_types_kset;
struct list_head type_list;
};
struct mdev_type {
struct kobject kobj;
struct kobject *devices_kobj;