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i2c: constify the struct device_type usage

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Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the
i2c_adapter_type and i2c_client_type variables to be constant structures as
well, placing it into read-only memory which can not be modified at
runtime.

Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
This commit is contained in:
Ricardo B. Marliere 2024-02-19 09:38:47 -03:00 committed by Wolfram Sang
parent b401b62175
commit eb52034436
2 changed files with 4 additions and 4 deletions
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4
drivers/i2c/i2c-core-base.c
View file

@ -701,7 +701,7 @@ const struct bus_type i2c_bus_type = {
};
EXPORT_SYMBOL_GPL(i2c_bus_type);
struct device_type i2c_client_type = {
const struct device_type i2c_client_type = {
.groups = i2c_dev_groups,
.uevent = i2c_device_uevent,
.release = i2c_client_dev_release,
@ -1343,7 +1343,7 @@ static struct attribute *i2c_adapter_attrs[] = {
};
ATTRIBUTE_GROUPS(i2c_adapter);
struct device_type i2c_adapter_type = {
const struct device_type i2c_adapter_type = {
.groups = i2c_adapter_groups,
.release = i2c_adapter_dev_release,
};

4
include/linux/i2c.h
View file

@ -24,8 +24,8 @@
#include <uapi/linux/i2c.h>
extern const struct bus_type i2c_bus_type;
extern struct device_type i2c_adapter_type;
extern struct device_type i2c_client_type;
extern const struct device_type i2c_adapter_type;
extern const struct device_type i2c_client_type;
/* --- General options ------------------------------------------------ */