diff options
| author | Kunwu Chan <chentao@kylinos.cn> | 2024-09-24 11:05:32 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-10-13 17:22:33 +0200 |
| commit | 619325ca7abbef5d7d7869f331b8672b6fb4513f (patch) | |
| tree | 078eda7c67f71cb5b5a71744e69d05d298cf7740 | |
| parent | a27b406a49225a17849c86221a32f2d598702719 (diff) | |
firmware: memmap: Constify memmap_ktype
This 'memmap_ktype' is not modified. It is only used in
firmware_map_add_entry().
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
4345 596 12 4953 1359 drivers/firmware/memmap.o
[After]
text data bss dec hex filename
4393 548 12 4953 1359 drivers/firmware/memmap.o
```
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Link: https://lore.kernel.org/r/20240924030533.34407-1-chentao@kylinos.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/firmware/memmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c index 8e59be3782cb..55b9cfad8a04 100644 --- a/drivers/firmware/memmap.c +++ b/drivers/firmware/memmap.c @@ -116,7 +116,7 @@ static void __meminit release_firmware_map_entry(struct kobject *kobj) kfree(entry); } -static struct kobj_type __refdata memmap_ktype = { +static const struct kobj_type memmap_ktype = { .release = release_firmware_map_entry, .sysfs_ops = &memmap_attr_ops, .default_groups = def_groups, |