cxl: Constify struct kobj_type

This 'struct kobj_type' is not modified. It is only used in
kobject_init_and_add() which takes a 'const struct kobj_type *ktype'
parameter.

Constifying this structure and moving it to a read-only section,
and can increase over all security.

Signed-off-by: Hongbo Li <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Hongbo Li

drivers/misc/cxl/sysfs.c

@@ -579,7 +579,7 @@ static void release_afu_config_record(struct kobject *kobj)
 	kfree(cr);
 }
 
-static struct kobj_type afu_config_record_type = {
+static const struct kobj_type afu_config_record_type = {
 	.sysfs_ops = &kobj_sysfs_ops,
 	.release = release_afu_config_record,
 	.default_groups = afu_cr_groups,