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vfio-mdev: Make mdev_device private and abstract interfaces

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Abstract access to mdev_device so that we can define which interfaces
are public rather than relying on comments in the structure.

Cc: Zhenyu Wang <[email protected]>
Cc: Zhi Wang <[email protected]>
Signed-off-by: Alex Williamson <[email protected]>
Reviewed-by: Jike Song <[email protected]>
Reviewed by: Kirti Wankhede <[email protected]>
This commit is contained in:
Alex Williamson 2016-12-30 08:13:44 -07:00
commit 99e3123e3d
5 changed files with 71 additions and 45 deletions
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30
drivers/vfio/mdev/mdev_core.c
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@ -36,6 +36,36 @@ struct device *mdev_parent_dev(struct mdev_device *mdev)
}
EXPORT_SYMBOL(mdev_parent_dev);
void *mdev_get_drvdata(struct mdev_device *mdev)
{
return mdev->driver_data;
}
EXPORT_SYMBOL(mdev_get_drvdata);
void mdev_set_drvdata(struct mdev_device *mdev, void *data)
{
mdev->driver_data = data;
}
EXPORT_SYMBOL(mdev_set_drvdata);
struct device *mdev_dev(struct mdev_device *mdev)
{
return &mdev->dev;
}
EXPORT_SYMBOL(mdev_dev);
struct mdev_device *mdev_from_dev(struct device *dev)
{
return dev_is_mdev(dev) ? to_mdev_device(dev) : NULL;
}
EXPORT_SYMBOL(mdev_from_dev);
uuid_le mdev_uuid(struct mdev_device *mdev)
{
return mdev->uuid;
}
EXPORT_SYMBOL(mdev_uuid);
static int _find_mdev_device(struct device *dev, void *data)
{
struct mdev_device *mdev;

13
drivers/vfio/mdev/mdev_private.h
View file

@ -26,6 +26,19 @@ struct mdev_parent {
struct list_head type_list;
};
struct mdev_device {
struct device dev;
struct mdev_parent *parent;
uuid_le uuid;
void *driver_data;
struct kref ref;
struct list_head next;
struct kobject *type_kobj;
};
#define to_mdev_device(dev) container_of(dev, struct mdev_device, dev)
#define dev_is_mdev(d) ((d)->bus == &mdev_bus_type)
struct mdev_type {
struct kobject kobj;
struct kobject *devices_kobj;