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hwmon: constify pointers to hwmon_channel_info

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HWmon core receives an array of pointers to hwmon_channel_info and it
does not modify it, thus it can be array of const pointers for safety.
This allows drivers to make them also const.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Krzysztof Kozlowski 2023-04-06 22:29:56 +02:00 committed by Guenter Roeck
parent 7e364e5629
commit d8cc9415a4
4 changed files with 7 additions and 7 deletions
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6
Documentation/hwmon/hwmon-kernel-api.rst
View File

@ -133,7 +133,7 @@ The hwmon_chip_info structure looks as follows::
struct hwmon_chip_info {
const struct hwmon_ops *ops;
const struct hwmon_channel_info **info;
const struct hwmon_channel_info * const *info;
};
It contains the following fields:
@ -229,7 +229,7 @@ register (HWMON_T_MAX) as well as a maximum temperature hysteresis register
.config = lm75_temp_config,
};
static const struct hwmon_channel_info *lm75_info[] = {
static const struct hwmon_channel_info * const lm75_info[] = {
&lm75_chip,
&lm75_temp,
NULL
@ -238,7 +238,7 @@ register (HWMON_T_MAX) as well as a maximum temperature hysteresis register
The HWMON_CHANNEL_INFO() macro can and should be used when possible.
With this macro, the above example can be simplified to
static const struct hwmon_channel_info *lm75_info[] = {
static const struct hwmon_channel_info * const lm75_info[] = {
HWMON_CHANNEL_INFO(chip,
HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL),
HWMON_CHANNEL_INFO(temp,

2
drivers/accel/habanalabs/common/hwmon.c
View File

@ -914,7 +914,7 @@ void hl_hwmon_fini(struct hl_device *hdev)
void hl_hwmon_release_resources(struct hl_device *hdev)
{
const struct hwmon_channel_info **channel_info_arr;
const struct hwmon_channel_info * const *channel_info_arr;
int i = 0;
if (!hdev->hl_chip_info->info)

4
drivers/hwmon/hwmon.c
View File

@ -174,7 +174,7 @@ static int hwmon_thermal_set_trips(struct thermal_zone_device *tz, int low, int
struct hwmon_thermal_data *tdata = tz->devdata;
struct hwmon_device *hwdev = to_hwmon_device(tdata->dev);
const struct hwmon_chip_info *chip = hwdev->chip;
const struct hwmon_channel_info **info = chip->info;
const struct hwmon_channel_info * const *info = chip->info;
unsigned int i;
int err;
@ -253,7 +253,7 @@ static int hwmon_thermal_register_sensors(struct device *dev)
{
struct hwmon_device *hwdev = to_hwmon_device(dev);
const struct hwmon_chip_info *chip = hwdev->chip;
const struct hwmon_channel_info **info = chip->info;
const struct hwmon_channel_info * const *info = chip->info;
void *drvdata = dev_get_drvdata(dev);
int i;

2
include/linux/hwmon.h
View File

@ -430,7 +430,7 @@ struct hwmon_channel_info {
*/
struct hwmon_chip_info {
const struct hwmon_ops *ops;
const struct hwmon_channel_info **info;
const struct hwmon_channel_info * const *info;
};
/* hwmon_device_register() is deprecated */