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Diffstat (limited to 'drivers/thermal/thermal_sys.c')
-rw-r--r--drivers/thermal/thermal_sys.c94
1 files changed, 39 insertions, 55 deletions
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 220ce7e31cf5..022bacb71a7e 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -23,6 +23,8 @@
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/device.h>
#include <linux/err.h>
@@ -39,8 +41,6 @@ MODULE_AUTHOR("Zhang Rui");
MODULE_DESCRIPTION("Generic thermal management sysfs support");
MODULE_LICENSE("GPL");
-#define PREFIX "Thermal: "
-
struct thermal_cooling_device_instance {
int id;
char name[THERMAL_NAME_LENGTH];
@@ -60,13 +60,11 @@ static LIST_HEAD(thermal_tz_list);
static LIST_HEAD(thermal_cdev_list);
static DEFINE_MUTEX(thermal_list_lock);
-static unsigned int thermal_event_seqnum;
-
static int get_idr(struct idr *idr, struct mutex *lock, int *id)
{
int err;
- again:
+again:
if (unlikely(idr_pre_get(idr, GFP_KERNEL) == 0))
return -ENOMEM;
@@ -152,9 +150,9 @@ mode_store(struct device *dev, struct device_attribute *attr,
if (!tz->ops->set_mode)
return -EPERM;
- if (!strncmp(buf, "enabled", sizeof("enabled")))
+ if (!strncmp(buf, "enabled", sizeof("enabled") - 1))
result = tz->ops->set_mode(tz, THERMAL_DEVICE_ENABLED);
- else if (!strncmp(buf, "disabled", sizeof("disabled")))
+ else if (!strncmp(buf, "disabled", sizeof("disabled") - 1))
result = tz->ops->set_mode(tz, THERMAL_DEVICE_DISABLED);
else
result = -EINVAL;
@@ -283,8 +281,7 @@ passive_show(struct device *dev, struct device_attribute *attr,
static DEVICE_ATTR(type, 0444, type_show, NULL);
static DEVICE_ATTR(temp, 0444, temp_show, NULL);
static DEVICE_ATTR(mode, 0644, mode_show, mode_store);
-static DEVICE_ATTR(passive, S_IRUGO | S_IWUSR, passive_show, \
- passive_store);
+static DEVICE_ATTR(passive, S_IRUGO | S_IWUSR, passive_show, passive_store);
static struct device_attribute trip_point_attrs[] = {
__ATTR(trip_point_0_type, 0444, trip_point_type_show, NULL),
@@ -313,22 +310,6 @@ static struct device_attribute trip_point_attrs[] = {
__ATTR(trip_point_11_temp, 0444, trip_point_temp_show, NULL),
};
-#define TRIP_POINT_ATTR_ADD(_dev, _index, result) \
-do { \
- result = device_create_file(_dev, \
- &trip_point_attrs[_index * 2]); \
- if (result) \
- break; \
- result = device_create_file(_dev, \
- &trip_point_attrs[_index * 2 + 1]); \
-} while (0)
-
-#define TRIP_POINT_ATTR_REMOVE(_dev, _index) \
-do { \
- device_remove_file(_dev, &trip_point_attrs[_index * 2]); \
- device_remove_file(_dev, &trip_point_attrs[_index * 2 + 1]); \
-} while (0)
-
/* sys I/F for cooling device */
#define to_cooling_device(_dev) \
container_of(_dev, struct thermal_cooling_device, device)
@@ -835,15 +816,14 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
return 0;
device_remove_file(&tz->device, &dev->attr);
- remove_symbol_link:
+remove_symbol_link:
sysfs_remove_link(&tz->device.kobj, dev->name);
- release_idr:
+release_idr:
release_idr(&tz->idr, &tz->lock, dev->id);
- free_mem:
+free_mem:
kfree(dev);
return result;
}
-
EXPORT_SYMBOL(thermal_zone_bind_cooling_device);
/**
@@ -873,14 +853,13 @@ int thermal_zone_unbind_cooling_device(struct thermal_zone_device *tz,
return -ENODEV;
- unbind:
+unbind:
device_remove_file(&tz->device, &pos->attr);
sysfs_remove_link(&tz->device.kobj, pos->name);
release_idr(&tz->idr, &tz->lock, pos->id);
kfree(pos);
return 0;
}
-
EXPORT_SYMBOL(thermal_zone_unbind_cooling_device);
static void thermal_release(struct device *dev)
@@ -888,7 +867,8 @@ static void thermal_release(struct device *dev)
struct thermal_zone_device *tz;
struct thermal_cooling_device *cdev;
- if (!strncmp(dev_name(dev), "thermal_zone", sizeof "thermal_zone" - 1)) {
+ if (!strncmp(dev_name(dev), "thermal_zone",
+ sizeof("thermal_zone") - 1)) {
tz = to_thermal_zone(dev);
kfree(tz);
} else {
@@ -908,8 +888,9 @@ static struct class thermal_class = {
* @devdata: device private data.
* @ops: standard thermal cooling devices callbacks.
*/
-struct thermal_cooling_device *thermal_cooling_device_register(
- char *type, void *devdata, const struct thermal_cooling_device_ops *ops)
+struct thermal_cooling_device *
+thermal_cooling_device_register(char *type, void *devdata,
+ const struct thermal_cooling_device_ops *ops)
{
struct thermal_cooling_device *cdev;
struct thermal_zone_device *pos;
@@ -974,12 +955,11 @@ struct thermal_cooling_device *thermal_cooling_device_register(
if (!result)
return cdev;
- unregister:
+unregister:
release_idr(&thermal_cdev_idr, &thermal_idr_lock, cdev->id);
device_unregister(&cdev->device);
return ERR_PTR(result);
}
-
EXPORT_SYMBOL(thermal_cooling_device_register);
/**
@@ -1024,7 +1004,6 @@ void thermal_cooling_device_unregister(struct
device_unregister(&cdev->device);
return;
}
-
EXPORT_SYMBOL(thermal_cooling_device_unregister);
/**
@@ -1044,8 +1023,7 @@ void thermal_zone_device_update(struct thermal_zone_device *tz)
if (tz->ops->get_temp(tz, &temp)) {
/* get_temp failed - retry it later */
- printk(KERN_WARNING PREFIX "failed to read out thermal zone "
- "%d\n", tz->id);
+ pr_warn("failed to read out thermal zone %d\n", tz->id);
goto leave;
}
@@ -1060,9 +1038,8 @@ void thermal_zone_device_update(struct thermal_zone_device *tz)
ret = tz->ops->notify(tz, count,
trip_type);
if (!ret) {
- printk(KERN_EMERG
- "Critical temperature reached (%ld C), shutting down.\n",
- temp/1000);
+ pr_emerg("Critical temperature reached (%ld C), shutting down\n",
+ temp/1000);
orderly_poweroff(true);
}
}
@@ -1100,7 +1077,7 @@ void thermal_zone_device_update(struct thermal_zone_device *tz)
tz->last_temperature = temp;
- leave:
+leave:
if (tz->passive)
thermal_zone_device_set_polling(tz, tz->passive_delay);
else if (tz->polling_delay)
@@ -1199,7 +1176,12 @@ struct thermal_zone_device *thermal_zone_device_register(char *type,
}
for (count = 0; count < trips; count++) {
- TRIP_POINT_ATTR_ADD(&tz->device, count, result);
+ result = device_create_file(&tz->device,
+ &trip_point_attrs[count * 2]);
+ if (result)
+ break;
+ result = device_create_file(&tz->device,
+ &trip_point_attrs[count * 2 + 1]);
if (result)
goto unregister;
tz->ops->get_trip_type(tz, count, &trip_type);
@@ -1235,12 +1217,11 @@ struct thermal_zone_device *thermal_zone_device_register(char *type,
if (!result)
return tz;
- unregister:
+unregister:
release_idr(&thermal_tz_idr, &thermal_idr_lock, tz->id);
device_unregister(&tz->device);
return ERR_PTR(result);
}
-
EXPORT_SYMBOL(thermal_zone_device_register);
/**
@@ -1279,9 +1260,12 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz)
if (tz->ops->get_mode)
device_remove_file(&tz->device, &dev_attr_mode);
- for (count = 0; count < tz->trips; count++)
- TRIP_POINT_ATTR_REMOVE(&tz->device, count);
-
+ for (count = 0; count < tz->trips; count++) {
+ device_remove_file(&tz->device,
+ &trip_point_attrs[count * 2]);
+ device_remove_file(&tz->device,
+ &trip_point_attrs[count * 2 + 1]);
+ }
thermal_remove_hwmon_sysfs(tz);
release_idr(&thermal_tz_idr, &thermal_idr_lock, tz->id);
idr_destroy(&tz->idr);
@@ -1289,7 +1273,6 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz)
device_unregister(&tz->device);
return;
}
-
EXPORT_SYMBOL(thermal_zone_device_unregister);
#ifdef CONFIG_NET
@@ -1312,10 +1295,11 @@ int thermal_generate_netlink_event(u32 orig, enum events event)
void *msg_header;
int size;
int result;
+ static unsigned int thermal_event_seqnum;
/* allocate memory */
- size = nla_total_size(sizeof(struct thermal_genl_event)) + \
- nla_total_size(0);
+ size = nla_total_size(sizeof(struct thermal_genl_event)) +
+ nla_total_size(0);
skb = genlmsg_new(size, GFP_ATOMIC);
if (!skb)
@@ -1331,8 +1315,8 @@ int thermal_generate_netlink_event(u32 orig, enum events event)
}
/* fill the data */
- attr = nla_reserve(skb, THERMAL_GENL_ATTR_EVENT, \
- sizeof(struct thermal_genl_event));
+ attr = nla_reserve(skb, THERMAL_GENL_ATTR_EVENT,
+ sizeof(struct thermal_genl_event));
if (!attr) {
nlmsg_free(skb);
@@ -1359,7 +1343,7 @@ int thermal_generate_netlink_event(u32 orig, enum events event)
result = genlmsg_multicast(skb, 0, thermal_event_mcgrp.id, GFP_ATOMIC);
if (result)
- printk(KERN_INFO "failed to send netlink event:%d", result);
+ pr_info("failed to send netlink event:%d\n", result);
return result;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.