From 77943f4d2de0c5fa284013b97967e6c271c04310 Mon Sep 17 00:00:00 2001 From: "Ricardo B. Marliere" Date: Thu, 8 Feb 2024 17:02:04 -0300 Subject: 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 Suggested-by: Greg Kroah-Hartman Signed-off-by: Ricardo B. Marliere Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Reviewed-by: Kirti Wankhede Link: https://lore.kernel.org/r/20240208-bus_cleanup-vfio-v1-1-ed5da3019949@marliere.net Signed-off-by: Alex Williamson --- drivers/vfio/mdev/mdev_driver.c | 2 +- drivers/vfio/mdev/mdev_private.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/vfio') diff --git a/drivers/vfio/mdev/mdev_driver.c b/drivers/vfio/mdev/mdev_driver.c index 7825d83a55f8..b98322966b3e 100644 --- a/drivers/vfio/mdev/mdev_driver.c +++ b/drivers/vfio/mdev/mdev_driver.c @@ -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, diff --git a/drivers/vfio/mdev/mdev_private.h b/drivers/vfio/mdev/mdev_private.h index af457b27f607..63a1316b08b7 100644 --- a/drivers/vfio/mdev/mdev_private.h +++ b/drivers/vfio/mdev/mdev_private.h @@ -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) \ -- cgit v1.2.3-58-ga151