vfio/mdev: Use struct mdev_type in struct mdev_device

The kobj pointer in mdev_device is actually pointing at a struct
mdev_type. Use the proper type so things are understandable.

There are a number of places that are confused and passing both the mdev
and the mtype as function arguments, fix these to derive the mtype
directly from the mdev to remove the redundancy.

Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Kevin Tian <[email protected]>
Reviewed-by: Cornelia Huck <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Alex Williamson <[email protected]>

1 files changed, 3 insertions, 1 deletions

diff --git a/include/linux/mdev.h b/include/linux/mdev.h
index cb771c712da0..349e8ac1fe33 100644
--- a/include/linux/mdev.h
+++ b/include/linux/mdev.h
@@ -10,13 +10,15 @@
 #ifndef MDEV_H
 #define MDEV_H
 
+struct mdev_type;
+
 struct mdev_device {
 	struct device dev;
 	struct mdev_parent *parent;
 	guid_t uuid;
 	void *driver_data;
 	struct list_head next;
-	struct kobject *type_kobj;
+	struct mdev_type *type;
 	struct device *iommu_device;
 	bool active;
 };