summaryrefslogtreecommitdiffstats
path: root/drivers/thermal/thermal_netlink.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:03 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:03 +0000
commit01a69402cf9d38ff180345d55c2ee51c7e89fbc7 (patch)
treeb406c5242a088c4f59c6e4b719b783f43aca6ae9 /drivers/thermal/thermal_netlink.c
parentAdding upstream version 6.7.12. (diff)
downloadlinux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.tar.xz
linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.zip
Adding upstream version 6.8.9.upstream/6.8.9
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/thermal/thermal_netlink.c')
-rw-r--r--drivers/thermal/thermal_netlink.c139
1 files changed, 65 insertions, 74 deletions
diff --git a/drivers/thermal/thermal_netlink.c b/drivers/thermal/thermal_netlink.c
index 08bc46c3ec..76a231a296 100644
--- a/drivers/thermal/thermal_netlink.c
+++ b/drivers/thermal/thermal_netlink.c
@@ -13,9 +13,14 @@
#include "thermal_core.h"
+enum thermal_genl_multicast_groups {
+ THERMAL_GENL_SAMPLING_GROUP = 0,
+ THERMAL_GENL_EVENT_GROUP = 1,
+};
+
static const struct genl_multicast_group thermal_genl_mcgrps[] = {
- { .name = THERMAL_GENL_SAMPLING_GROUP_NAME, },
- { .name = THERMAL_GENL_EVENT_GROUP_NAME, },
+ [THERMAL_GENL_SAMPLING_GROUP] = { .name = THERMAL_GENL_SAMPLING_GROUP_NAME, },
+ [THERMAL_GENL_EVENT_GROUP] = { .name = THERMAL_GENL_EVENT_GROUP_NAME, },
};
static const struct nla_policy thermal_genl_policy[THERMAL_GENL_ATTR_MAX + 1] = {
@@ -71,6 +76,11 @@ typedef int (*cb_t)(struct param *);
static struct genl_family thermal_gnl_family;
+static int thermal_group_has_listeners(enum thermal_genl_multicast_groups group)
+{
+ return genl_has_listeners(&thermal_gnl_family, &init_net, group);
+}
+
/************************** Sampling encoding *******************************/
int thermal_genl_sampling_temp(int id, int temp)
@@ -78,6 +88,9 @@ int thermal_genl_sampling_temp(int id, int temp)
struct sk_buff *skb;
void *hdr;
+ if (!thermal_group_has_listeners(THERMAL_GENL_SAMPLING_GROUP))
+ return 0;
+
skb = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
if (!skb)
return -ENOMEM;
@@ -95,7 +108,7 @@ int thermal_genl_sampling_temp(int id, int temp)
genlmsg_end(skb, hdr);
- genlmsg_multicast(&thermal_gnl_family, skb, 0, 0, GFP_KERNEL);
+ genlmsg_multicast(&thermal_gnl_family, skb, 0, THERMAL_GENL_SAMPLING_GROUP, GFP_KERNEL);
return 0;
out_cancel:
@@ -135,7 +148,7 @@ static int thermal_genl_event_tz_trip_up(struct param *p)
return 0;
}
-static int thermal_genl_event_tz_trip_add(struct param *p)
+static int thermal_genl_event_tz_trip_change(struct param *p)
{
if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) ||
nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, p->trip_id) ||
@@ -147,15 +160,6 @@ static int thermal_genl_event_tz_trip_add(struct param *p)
return 0;
}
-static int thermal_genl_event_tz_trip_delete(struct param *p)
-{
- if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) ||
- nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, p->trip_id))
- return -EMSGSIZE;
-
- return 0;
-}
-
static int thermal_genl_event_cdev_add(struct param *p)
{
if (nla_put_string(p->msg, THERMAL_GENL_ATTR_CDEV_NAME,
@@ -245,9 +249,6 @@ int thermal_genl_event_tz_disable(struct param *p)
int thermal_genl_event_tz_trip_down(struct param *p)
__attribute__((alias("thermal_genl_event_tz_trip_up")));
-int thermal_genl_event_tz_trip_change(struct param *p)
- __attribute__((alias("thermal_genl_event_tz_trip_add")));
-
static cb_t event_cb[] = {
[THERMAL_GENL_EVENT_TZ_CREATE] = thermal_genl_event_tz_create,
[THERMAL_GENL_EVENT_TZ_DELETE] = thermal_genl_event_tz_delete,
@@ -256,8 +257,6 @@ static cb_t event_cb[] = {
[THERMAL_GENL_EVENT_TZ_TRIP_UP] = thermal_genl_event_tz_trip_up,
[THERMAL_GENL_EVENT_TZ_TRIP_DOWN] = thermal_genl_event_tz_trip_down,
[THERMAL_GENL_EVENT_TZ_TRIP_CHANGE] = thermal_genl_event_tz_trip_change,
- [THERMAL_GENL_EVENT_TZ_TRIP_ADD] = thermal_genl_event_tz_trip_add,
- [THERMAL_GENL_EVENT_TZ_TRIP_DELETE] = thermal_genl_event_tz_trip_delete,
[THERMAL_GENL_EVENT_CDEV_ADD] = thermal_genl_event_cdev_add,
[THERMAL_GENL_EVENT_CDEV_DELETE] = thermal_genl_event_cdev_delete,
[THERMAL_GENL_EVENT_CDEV_STATE_UPDATE] = thermal_genl_event_cdev_state_update,
@@ -275,6 +274,9 @@ static int thermal_genl_send_event(enum thermal_genl_event event,
int ret = -EMSGSIZE;
void *hdr;
+ if (!thermal_group_has_listeners(THERMAL_GENL_EVENT_GROUP))
+ return 0;
+
msg = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
if (!msg)
return -ENOMEM;
@@ -290,7 +292,7 @@ static int thermal_genl_send_event(enum thermal_genl_event event,
genlmsg_end(msg, hdr);
- genlmsg_multicast(&thermal_gnl_family, msg, 0, 1, GFP_KERNEL);
+ genlmsg_multicast(&thermal_gnl_family, msg, 0, THERMAL_GENL_EVENT_GROUP, GFP_KERNEL);
return 0;
@@ -302,100 +304,93 @@ out_free_msg:
return ret;
}
-int thermal_notify_tz_create(int tz_id, const char *name)
+int thermal_notify_tz_create(const struct thermal_zone_device *tz)
{
- struct param p = { .tz_id = tz_id, .name = name };
+ struct param p = { .tz_id = tz->id, .name = tz->type };
return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_CREATE, &p);
}
-int thermal_notify_tz_delete(int tz_id)
+int thermal_notify_tz_delete(const struct thermal_zone_device *tz)
{
- struct param p = { .tz_id = tz_id };
+ struct param p = { .tz_id = tz->id };
return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_DELETE, &p);
}
-int thermal_notify_tz_enable(int tz_id)
+int thermal_notify_tz_enable(const struct thermal_zone_device *tz)
{
- struct param p = { .tz_id = tz_id };
+ struct param p = { .tz_id = tz->id };
return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_ENABLE, &p);
}
-int thermal_notify_tz_disable(int tz_id)
+int thermal_notify_tz_disable(const struct thermal_zone_device *tz)
{
- struct param p = { .tz_id = tz_id };
+ struct param p = { .tz_id = tz->id };
return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_DISABLE, &p);
}
-int thermal_notify_tz_trip_down(int tz_id, int trip_id, int temp)
+int thermal_notify_tz_trip_down(const struct thermal_zone_device *tz,
+ const struct thermal_trip *trip)
{
- struct param p = { .tz_id = tz_id, .trip_id = trip_id, .temp = temp };
+ struct param p = { .tz_id = tz->id,
+ .trip_id = thermal_zone_trip_id(tz, trip),
+ .temp = tz->temperature };
return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_DOWN, &p);
}
-int thermal_notify_tz_trip_up(int tz_id, int trip_id, int temp)
+int thermal_notify_tz_trip_up(const struct thermal_zone_device *tz,
+ const struct thermal_trip *trip)
{
- struct param p = { .tz_id = tz_id, .trip_id = trip_id, .temp = temp };
+ struct param p = { .tz_id = tz->id,
+ .trip_id = thermal_zone_trip_id(tz, trip),
+ .temp = tz->temperature };
return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_UP, &p);
}
-int thermal_notify_tz_trip_add(int tz_id, int trip_id, int trip_type,
- int trip_temp, int trip_hyst)
+int thermal_notify_tz_trip_change(const struct thermal_zone_device *tz,
+ const struct thermal_trip *trip)
{
- struct param p = { .tz_id = tz_id, .trip_id = trip_id,
- .trip_type = trip_type, .trip_temp = trip_temp,
- .trip_hyst = trip_hyst };
-
- return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_ADD, &p);
-}
-
-int thermal_notify_tz_trip_delete(int tz_id, int trip_id)
-{
- struct param p = { .tz_id = tz_id, .trip_id = trip_id };
-
- return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_DELETE, &p);
-}
-
-int thermal_notify_tz_trip_change(int tz_id, int trip_id, int trip_type,
- int trip_temp, int trip_hyst)
-{
- struct param p = { .tz_id = tz_id, .trip_id = trip_id,
- .trip_type = trip_type, .trip_temp = trip_temp,
- .trip_hyst = trip_hyst };
+ struct param p = { .tz_id = tz->id,
+ .trip_id = thermal_zone_trip_id(tz, trip),
+ .trip_type = trip->type,
+ .trip_temp = trip->temperature,
+ .trip_hyst = trip->hysteresis };
return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_CHANGE, &p);
}
-int thermal_notify_cdev_state_update(int cdev_id, int cdev_state)
+int thermal_notify_cdev_state_update(const struct thermal_cooling_device *cdev,
+ int state)
{
- struct param p = { .cdev_id = cdev_id, .cdev_state = cdev_state };
+ struct param p = { .cdev_id = cdev->id, .cdev_state = state };
return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_STATE_UPDATE, &p);
}
-int thermal_notify_cdev_add(int cdev_id, const char *name, int cdev_max_state)
+int thermal_notify_cdev_add(const struct thermal_cooling_device *cdev)
{
- struct param p = { .cdev_id = cdev_id, .name = name,
- .cdev_max_state = cdev_max_state };
+ struct param p = { .cdev_id = cdev->id, .name = cdev->type,
+ .cdev_max_state = cdev->max_state };
return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_ADD, &p);
}
-int thermal_notify_cdev_delete(int cdev_id)
+int thermal_notify_cdev_delete(const struct thermal_cooling_device *cdev)
{
- struct param p = { .cdev_id = cdev_id };
+ struct param p = { .cdev_id = cdev->id };
return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_DELETE, &p);
}
-int thermal_notify_tz_gov_change(int tz_id, const char *name)
+int thermal_notify_tz_gov_change(const struct thermal_zone_device *tz,
+ const char *name)
{
- struct param p = { .tz_id = tz_id, .name = name };
+ struct param p = { .tz_id = tz->id, .name = name };
return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_GOV_CHANGE, &p);
}
@@ -450,10 +445,10 @@ out_cancel_nest:
static int thermal_genl_cmd_tz_get_trip(struct param *p)
{
struct sk_buff *msg = p->msg;
+ const struct thermal_trip *trip;
struct thermal_zone_device *tz;
struct nlattr *start_trip;
- struct thermal_trip trip;
- int ret, i, id;
+ int id;
if (!p->attrs[THERMAL_GENL_ATTR_TZ_ID])
return -EINVAL;
@@ -470,16 +465,12 @@ static int thermal_genl_cmd_tz_get_trip(struct param *p)
mutex_lock(&tz->lock);
- for (i = 0; i < tz->num_trips; i++) {
-
- ret = __thermal_zone_get_trip(tz, i, &trip);
- if (ret)
- goto out_cancel_nest;
-
- if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, i) ||
- nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TYPE, trip.type) ||
- nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TEMP, trip.temperature) ||
- nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_HYST, trip.hysteresis))
+ for_each_trip(tz, trip) {
+ if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_ID,
+ thermal_zone_trip_id(tz, trip)) ||
+ nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TYPE, trip->type) ||
+ nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TEMP, trip->temperature) ||
+ nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_HYST, trip->hysteresis))
goto out_cancel_nest;
}