'struct kobj_type' is not modified. It is only used in kobject_init()
which takes a 'const struct kobj_type *ktype' parameter.
Constifying this structure moves some data to a read-only section,
so increase over all security.
On a x86_64, compiled with ppc64 defconfig:
Before:
======
text data bss dec hex filename
1885 368 16 2269 8dd
arch/powerpc/platforms/pseries/vas-sysfs.o
After:
======
text data bss dec hex filename
1981 272 16 2269 8dd
arch/powerpc/platforms/pseries/vas-sysfs.o
Signed-off-by: Huang Xiaojia <huangxiaoj...@huawei.com>
---
arch/powerpc/platforms/pseries/vas-sysfs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/vas-sysfs.c
b/arch/powerpc/platforms/pseries/vas-sysfs.c
index f9f682724e77..9e05a0e99cad 100644
--- a/arch/powerpc/platforms/pseries/vas-sysfs.c
+++ b/arch/powerpc/platforms/pseries/vas-sysfs.c
@@ -162,13 +162,13 @@ static const struct sysfs_ops vas_sysfs_ops = {
.store = vas_type_store,
};
-static struct kobj_type vas_def_attr_type = {
+static const struct kobj_type vas_def_attr_type = {
.release = vas_type_release,
.sysfs_ops = &vas_sysfs_ops,
.default_groups = vas_def_capab_groups,
};
-static struct kobj_type vas_qos_attr_type = {
+static const struct kobj_type vas_qos_attr_type = {
.release = vas_type_release,
.sysfs_ops = &vas_sysfs_ops,
.default_groups = vas_qos_capab_groups,
--
2.34.1
