diff options
| author | Hongbo Li <lihongbo22@huawei.com> | 2024-09-04 09:22:00 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-11 16:02:54 +0200 |
| commit | 89ec686a17914a6b663b11b8bdaf3f966546da32 (patch) | |
| tree | ce83a82861ec5ade9c8b437cd87c9a82db891758 | |
| parent | 5c09cfa5d21cfd820c183bd188be6f215d99770e (diff) | |
uio: Constify struct kobj_type
These 'struct kobj_type' are not modified. They are only used in
kobject_init() which takes a 'const struct kobj_type *ktype'
parameter.
Constifying these structure and moving them to a read-only
section (from data to text), and can increase over all security.
```
[Before]
text data bss dec hex filename
10330 1908 20 12258 2fe2 drivers/uio/uio.o
[After]
text data bss dec hex filename
10458 1844 20 12322 3022 drivers/uio/uio.o
```
Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Link: https://lore.kernel.org/r/20240904012200.2010916-1-lihongbo22@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/uio/uio.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c index 20d2a55cb40b..004a549c6c7d 100644 --- a/drivers/uio/uio.c +++ b/drivers/uio/uio.c @@ -118,7 +118,7 @@ static const struct sysfs_ops map_sysfs_ops = { .show = map_type_show, }; -static struct kobj_type map_attr_type = { +static const struct kobj_type map_attr_type = { .release = map_release, .sysfs_ops = &map_sysfs_ops, .default_groups = map_groups, @@ -207,7 +207,7 @@ static const struct sysfs_ops portio_sysfs_ops = { .show = portio_type_show, }; -static struct kobj_type portio_attr_type = { +static const struct kobj_type portio_attr_type = { .release = portio_release, .sysfs_ops = &portio_sysfs_ops, .default_groups = portio_groups, |