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vfio/mdev: Remove mdev_parent_ops

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The last useful member in this struct is the supported_type_groups, move
it to the mdev_driver and delete mdev_parent_ops.

Replace it with mdev_driver as an argument to mdev_register_device()

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20220411141403.86980-33-hch@lst.de
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
This commit is contained in:
Jason Gunthorpe 2022-04-11 16:14:01 +02:00 • committed by Zhi Wang
parent e6486939d8
commit 6b42f491e1
11 changed files with 28 additions and 92 deletions
Download patch file Download diff file Expand all files Collapse all files

25
include/linux/mdev.h
View file

@ -30,26 +30,6 @@ unsigned int mdev_get_type_group_id(struct mdev_device *mdev);
unsigned int mtype_get_type_group_id(struct mdev_type *mtype);
struct device *mtype_get_parent_dev(struct mdev_type *mtype);
/**
* struct mdev_parent_ops - Structure to be registered for each parent device to
* register the device to mdev module.
*
* @owner: The module owner.
* @device_driver: Which device driver to probe() on newly created devices
* @mdev_attr_groups: Attributes of the mediated device.
* @supported_type_groups: Attributes to define supported types. It is mandatory
* to provide supported types.
*
* Parent device that support mediated device should be registered with mdev
* module with mdev_parent_ops structure.
**/
struct mdev_parent_ops {
struct module *owner;
struct mdev_driver *device_driver;
const struct attribute_group **mdev_attr_groups;
struct attribute_group **supported_type_groups;
};
/* interface for exporting mdev supported type attributes */
struct mdev_type_attribute {
struct attribute attr;
@ -74,12 +54,15 @@ struct mdev_type_attribute mdev_type_attr_##_name = \
* struct mdev_driver - Mediated device driver
* @probe: called when new device created
* @remove: called when device removed
* @supported_type_groups: Attributes to define supported types. It is mandatory
* to provide supported types.
* @driver: device driver structure
*
**/
struct mdev_driver {
int (*probe)(struct mdev_device *dev);
void (*remove)(struct mdev_device *dev);
struct attribute_group **supported_type_groups;
struct device_driver driver;
};
@ -98,7 +81,7 @@ static inline const guid_t *mdev_uuid(struct mdev_device *mdev)
extern struct bus_type mdev_bus_type;
int mdev_register_device(struct device *dev, const struct mdev_parent_ops *ops);
int mdev_register_device(struct device *dev, struct mdev_driver *mdev_driver);
void mdev_unregister_device(struct device *dev);
int mdev_register_driver(struct mdev_driver *drv);