From: Hongbo Li Date: Wed, 4 Sep 2024 01:22:00 +0000 (+0800) Subject: uio: Constify struct kobj_type X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=89ec686a17914a6b663b11b8bdaf3f966546da32;p=users%2Fjedix%2Flinux-maple.git 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 Link: https://lore.kernel.org/r/20240904012200.2010916-1-lihongbo22@huawei.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c index 20d2a55cb40b8..004a549c6c7d4 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,