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orangefs: Constify struct kobj_type

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'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 defconfig:
Before:
======
   text	   data	    bss	    dec	    hex	filename
   7036	   2136	     56	   9228	   240c	fs/orangefs/orangefs-sysfs.o

After:
======
   text	   data	    bss	    dec	    hex	filename
   7484	   1880	     56	   9420	   24cc	fs/orangefs/orangefs-sysfs.o

Signed-off-by: Huang Xiaojia <huangxiaojia2@huawei.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
This commit is contained in:
Huang Xiaojia 2024-08-26 23:04:18 +08:00 committed by Mike Marshall
parent 5be63fc19f
commit 96319dacaf
1 changed files with 7 additions and 7 deletions
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14
fs/orangefs/orangefs-sysfs.c
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@ -904,7 +904,7 @@ static void orangefs_obj_release(struct kobject *kobj)
orangefs_obj = NULL;
}
static struct kobj_type orangefs_ktype = {
static const struct kobj_type orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_groups = orangefs_default_groups,
.release = orangefs_obj_release,
@ -951,7 +951,7 @@ static void acache_orangefs_obj_release(struct kobject *kobj)
acache_orangefs_obj = NULL;
}
static struct kobj_type acache_orangefs_ktype = {
static const struct kobj_type acache_orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_groups = acache_orangefs_default_groups,
.release = acache_orangefs_obj_release,
@ -998,7 +998,7 @@ static void capcache_orangefs_obj_release(struct kobject *kobj)
capcache_orangefs_obj = NULL;
}
static struct kobj_type capcache_orangefs_ktype = {
static const struct kobj_type capcache_orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_groups = capcache_orangefs_default_groups,
.release = capcache_orangefs_obj_release,
@ -1045,7 +1045,7 @@ static void ccache_orangefs_obj_release(struct kobject *kobj)
ccache_orangefs_obj = NULL;
}
static struct kobj_type ccache_orangefs_ktype = {
static const struct kobj_type ccache_orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_groups = ccache_orangefs_default_groups,
.release = ccache_orangefs_obj_release,
@ -1092,7 +1092,7 @@ static void ncache_orangefs_obj_release(struct kobject *kobj)
ncache_orangefs_obj = NULL;
}
static struct kobj_type ncache_orangefs_ktype = {
static const struct kobj_type ncache_orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_groups = ncache_orangefs_default_groups,
.release = ncache_orangefs_obj_release,
@ -1132,7 +1132,7 @@ static void pc_orangefs_obj_release(struct kobject *kobj)
pc_orangefs_obj = NULL;
}
static struct kobj_type pc_orangefs_ktype = {
static const struct kobj_type pc_orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_groups = pc_orangefs_default_groups,
.release = pc_orangefs_obj_release,
@ -1165,7 +1165,7 @@ static void stats_orangefs_obj_release(struct kobject *kobj)
stats_orangefs_obj = NULL;
}
static struct kobj_type stats_orangefs_ktype = {
static const struct kobj_type stats_orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_groups = stats_orangefs_default_groups,
.release = stats_orangefs_obj_release,