peci: constify the struct device_type usage

Since commit aed65af ("drivers: make device_type const"), the driver core can properly handle constant struct device_type. Move the peci_controller_type and peci_device_type variables to be constant structures as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman <[email protected]> Signed-off-by: "Ricardo B. Marliere" <[email protected]> Reviewed-by: Iwona Winiarska <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Iwona Winiarska <[email protected]>
ddstreet · Apr 15, 2024 · e6faf2b · e6faf2b
1 parent ed8c2da
commit e6faf2b
Show file tree

Hide file tree

Showing 3 changed files with 4 additions and 4 deletions.
diff --git a/drivers/peci/core.c b/drivers/peci/core.c
@@ -25,7 +25,7 @@ static void peci_controller_dev_release(struct device *dev)
 	kfree(controller);
 }
 
-struct device_type peci_controller_type = {
+const struct device_type peci_controller_type = {
 	.release	= peci_controller_dev_release,
 };
 

diff --git a/drivers/peci/device.c b/drivers/peci/device.c
@@ -246,7 +246,7 @@ static void peci_device_release(struct device *dev)
 	kfree(device);
 }
 
-struct device_type peci_device_type = {
+const struct device_type peci_device_type = {
 	.groups		= peci_device_groups,
 	.release	= peci_device_release,
 };
diff --git a/drivers/peci/internal.h b/drivers/peci/internal.h
@@ -75,7 +75,7 @@ struct peci_device_id {
 	u8 model;
 };
 
-extern struct device_type peci_device_type;
+extern const struct device_type peci_device_type;
 extern const struct attribute_group *peci_device_groups[];
 
 int peci_device_create(struct peci_controller *controller, u8 addr);
@@ -129,7 +129,7 @@ void peci_driver_unregister(struct peci_driver *driver);
 #define module_peci_driver(__peci_driver) \
 	module_driver(__peci_driver, peci_driver_register, peci_driver_unregister)
 
-extern struct device_type peci_controller_type;
+extern const struct device_type peci_controller_type;
 
 int peci_controller_scan_devices(struct peci_controller *controller);