[PATCH -next] arm64: Constify struct kobj_type

[Huang Xiaojia]

'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 arm defconfig:
Before:
======
   text	   data	    bss	    dec	    hex	filename
   5602	    548	    352	   6502	   1966	arch/arm64/kernel/cpuinfo.o

After:
======
   text    data     bss     dec     hex filename
   5650     500     352    6502    1966 arch/arm64/kernel/cpuinfo.o

Signed-off-by: Huang Xiaojia <huangxiaojia2 at huawei.com>
---
 arch/arm64/kernel/cpuinfo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 09eeaa24d456..369dd72a8b22 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -280,7 +280,7 @@ const struct seq_operations cpuinfo_op = {
 };
 
 
-static struct kobj_type cpuregs_kobj_type = {
+static const struct kobj_type cpuregs_kobj_type = {
 	.sysfs_ops = &kobj_sysfs_ops,
 };
 
-- 
2.34.1