Commit 77943f4d authored by Ricardo B. Marliere's avatar Ricardo B. Marliere Committed by Alex Williamson
Browse files

vfio: mdev: make mdev_bus_type const 



Now that the driver core can properly handle constant struct bus_type,
move the mdev_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarRicardo B. Marliere <ricardo@marliere.net>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Reviewed-by: default avatarKirti Wankhede <kwankhede@nvidia.com>
Link: https://lore.kernel.org/r/20240208-bus_cleanup-vfio-v1-1-ed5da3019949@marliere.net


Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent 05f3a0bd

drivers/vfio/mdev/mdev_driver.c

+1 −1
Original line number Diff line number Diff line
@@ -40,7 +40,7 @@ static int mdev_match(struct device *dev, struct device_driver *drv) 
	return 0;

}



struct bus_type mdev_bus_type = {

const struct bus_type mdev_bus_type = {

	.name		= "mdev",

	.probe		= mdev_probe,

	.remove		= mdev_remove,

drivers/vfio/mdev/mdev_private.h

+1 −1
Original line number Diff line number Diff line
@@ -13,7 +13,7 @@ 
int  mdev_bus_register(void);

void mdev_bus_unregister(void);



extern struct bus_type mdev_bus_type;

extern const struct bus_type mdev_bus_type;

extern const struct attribute_group *mdev_device_groups[];



#define to_mdev_type_attr(_attr)	\