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vfio: mdev: make mdev_bus_type const

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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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Link: https://lore.kernel.org/r/20240208-bus_cleanup-vfio-v1-1-ed5da3019949@marliere.net
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Ricardo B. Marliere 2024-02-08 17:02:04 -03:00 committed by Alex Williamson
parent 05f3a0bd09
commit 77943f4d2d
2 changed files with 2 additions and 2 deletions
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2
drivers/vfio/mdev/mdev_driver.c
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@ -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,

2
drivers/vfio/mdev/mdev_private.h
View File

@ -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) \