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| author | Hongbo Li <lihongbo22@huawei.com> | 2024-09-04 09:17:43 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-09-25 07:07:44 -0400 |
| commit | 4a21d31d7bcb4c245783119252b0389255964cd2 (patch) | |
| tree | 489ce52e4d413e22debd4cb4c7b3cdd8481bc748 | |
| parent | 62111654481d5df4be3776a898cb88b5e4974103 (diff) | |
| download | linux-4a21d31d7bcb4c245783119252b0389255964cd2.tar.gz linux-4a21d31d7bcb4c245783119252b0389255964cd2.tar.bz2 linux-4a21d31d7bcb4c245783119252b0389255964cd2.zip | |
fw_cfg: 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 this can increase over all security.
```
[Before]
text data bss dec hex filename
5974 1008 96 7078 1ba6 drivers/firmware/qemu_fw_cfg.o
[After]
text data bss dec hex filename
6038 944 96 7078 1ba6 drivers/firmware/qemu_fw_cfg.o
```
Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Message-Id: <20240904011743.2010319-1-lihongbo22@huawei.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | drivers/firmware/qemu_fw_cfg.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c index 5f43dfa22f79..85c525745b31 100644 --- a/drivers/firmware/qemu_fw_cfg.c +++ b/drivers/firmware/qemu_fw_cfg.c @@ -452,7 +452,7 @@ static void fw_cfg_sysfs_release_entry(struct kobject *kobj) } /* kobj_type: ties together all properties required to register an entry */ -static struct kobj_type fw_cfg_sysfs_entry_ktype = { +static const struct kobj_type fw_cfg_sysfs_entry_ktype = { .default_groups = fw_cfg_sysfs_entry_groups, .sysfs_ops = &fw_cfg_sysfs_attr_ops, .release = fw_cfg_sysfs_release_entry, |