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authorHuang Xiaojia <huangxiaojia2@huawei.com>2024-08-26 23:09:57 +0800
committerMichael Ellerman <mpe@ellerman.id.au>2024-09-05 22:25:36 +1000
commit6f2683274d0d0b51a986f73c2afb9058156f1641 (patch)
tree6b548980d9d6dc3d02c5cb7566af1d95f8310a91 /arch/powerpc
parent7492ca369e98a45b55592456dc1b24d58b3392f5 (diff)
powerpc: pseries: Constify struct kobj_type
'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 <huangxiaojia2@huawei.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20240826150957.3500237-3-huangxiaojia2@huawei.com
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/platforms/pseries/vas-sysfs.c4
1 files 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,