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iio: core: Constify struct configfs_item_operations and configfs_group_operations

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'struct configfs_item_operations' and 'configfs_group_operations' are not
modified in this driver.

Constifying these structures moves some data to a read-only section, so
increases overall security, especially when the structure holds some
function pointers.

On a x86_64, with allmodconfig:
Before:
======
   text	   data	    bss	    dec	    hex	filename
   5037	   1528	     64	   6629	   19e5	drivers/iio/industrialio-sw-device.o
   5509	   1528	     64	   7101	   1bbd	drivers/iio/industrialio-sw-trigger.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
   5133	   1432	     64	   6629	   19e5	drivers/iio/industrialio-sw-device.o
   5605	   1432	     64	   7101	   1bbd	drivers/iio/industrialio-sw-trigger.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Christophe JAILLET 2025-12-29 12:27:43 +01:00 • committed by Jonathan Cameron
parent d63d868b31
commit d09ba52bfb
2 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/iio/industrialio-sw-device.c
View file

@ -148,7 +148,7 @@ static void device_drop_group(struct config_group *group,
config_item_put(item);
}
static struct configfs_group_operations device_ops = {
static const struct configfs_group_operations device_ops = {
.make_group = &device_make_group,
.drop_item = &device_drop_group,
};

2
drivers/iio/industrialio-sw-trigger.c
View file

@ -152,7 +152,7 @@ static void trigger_drop_group(struct config_group *group,
config_item_put(item);
}
static struct configfs_group_operations trigger_ops = {
static const struct configfs_group_operations trigger_ops = {
.make_group = &trigger_make_group,
.drop_item = &trigger_drop_group,
};