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Date: Tue, 27 Sep 2022 22:45:20 +0200
From: Armin Wolf <W_Armin@....de>
To: hdegoede@...hat.com, markgross@...nel.org
Cc: rafael@...nel.org, lenb@...nel.org, hmh@....eng.br,
matan@...alib.org, corentin.chary@...il.com, jeremy@...tem76.com,
productdev@...tem76.com, mario.limonciello@....com,
pobrn@...tonmail.com, coproscefalo@...il.com,
platform-driver-x86@...r.kernel.org, linux-acpi@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] ACPI: battery: Pass battery hook pointer to hook callbacks
Right now, is impossible for battery hook callbacks
to access instance-specific data, forcing most drivers
to provide some sort of global state. This however is
difficult for drivers which can be instantiated multiple
times and/or are hotplug-capable.
Pass a pointer to the batetry hook to those callbacks
for usage with container_of().
Signed-off-by: Armin Wolf <W_Armin@....de>
---
drivers/acpi/battery.c | 8 ++++----
drivers/platform/x86/asus-wmi.c | 4 ++--
drivers/platform/x86/huawei-wmi.c | 4 ++--
drivers/platform/x86/lg-laptop.c | 4 ++--
drivers/platform/x86/system76_acpi.c | 4 ++--
drivers/platform/x86/thinkpad_acpi.c | 4 ++--
drivers/platform/x86/toshiba_acpi.c | 4 ++--
include/acpi/battery.h | 4 ++--
8 files changed, 18 insertions(+), 18 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 306513fec1e1..9482b0b6eadc 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -696,7 +696,7 @@ static void __battery_hook_unregister(struct acpi_battery_hook *hook, int lock)
if (lock)
mutex_lock(&hook_mutex);
list_for_each_entry(battery, &acpi_battery_list, list) {
- hook->remove_battery(battery->bat);
+ hook->remove_battery(battery->bat, hook);
}
list_del(&hook->list);
if (lock)
@@ -724,7 +724,7 @@ void battery_hook_register(struct acpi_battery_hook *hook)
* its attributes.
*/
list_for_each_entry(battery, &acpi_battery_list, list) {
- if (hook->add_battery(battery->bat)) {
+ if (hook->add_battery(battery->bat, hook)) {
/*
* If a add-battery returns non-zero,
* the registration of the extension has failed,
@@ -762,7 +762,7 @@ static void battery_hook_add_battery(struct acpi_battery *battery)
* during the battery module initialization.
*/
list_for_each_entry_safe(hook_node, tmp, &battery_hook_list, list) {
- if (hook_node->add_battery(battery->bat)) {
+ if (hook_node->add_battery(battery->bat, hook_node)) {
/*
* The notification of the extensions has failed, to
* prevent further errors we will unload the extension.
@@ -785,7 +785,7 @@ static void battery_hook_remove_battery(struct acpi_battery *battery)
* custom attributes from the battery.
*/
list_for_each_entry(hook, &battery_hook_list, list) {
- hook->remove_battery(battery->bat);
+ hook->remove_battery(battery->bat, hook);
}
/* Then, just remove the battery from the list */
list_del(&battery->list);
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index ae46af731de9..446669d11095 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -882,7 +882,7 @@ static ssize_t charge_control_end_threshold_show(struct device *device,
static DEVICE_ATTR_RW(charge_control_end_threshold);
-static int asus_wmi_battery_add(struct power_supply *battery)
+static int asus_wmi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
{
/* The WMI method does not provide a way to specific a battery, so we
* just assume it is the first battery.
@@ -909,7 +909,7 @@ static int asus_wmi_battery_add(struct power_supply *battery)
return 0;
}
-static int asus_wmi_battery_remove(struct power_supply *battery)
+static int asus_wmi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
{
device_remove_file(&battery->dev,
&dev_attr_charge_control_end_threshold);
diff --git a/drivers/platform/x86/huawei-wmi.c b/drivers/platform/x86/huawei-wmi.c
index eac3e6b4ea11..1dec4427053a 100644
--- a/drivers/platform/x86/huawei-wmi.c
+++ b/drivers/platform/x86/huawei-wmi.c
@@ -468,7 +468,7 @@ static DEVICE_ATTR_RW(charge_control_start_threshold);
static DEVICE_ATTR_RW(charge_control_end_threshold);
static DEVICE_ATTR_RW(charge_control_thresholds);
-static int huawei_wmi_battery_add(struct power_supply *battery)
+static int huawei_wmi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
{
int err = 0;
@@ -483,7 +483,7 @@ static int huawei_wmi_battery_add(struct power_supply *battery)
return err;
}
-static int huawei_wmi_battery_remove(struct power_supply *battery)
+static int huawei_wmi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
{
device_remove_file(&battery->dev, &dev_attr_charge_control_start_threshold);
device_remove_file(&battery->dev, &dev_attr_charge_control_end_threshold);
diff --git a/drivers/platform/x86/lg-laptop.c b/drivers/platform/x86/lg-laptop.c
index 332868b140ed..d662b64b0ba9 100644
--- a/drivers/platform/x86/lg-laptop.c
+++ b/drivers/platform/x86/lg-laptop.c
@@ -546,7 +546,7 @@ static DEVICE_ATTR_RW(fn_lock);
static DEVICE_ATTR_RW(charge_control_end_threshold);
static DEVICE_ATTR_RW(battery_care_limit);
-static int lg_battery_add(struct power_supply *battery)
+static int lg_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
{
if (device_create_file(&battery->dev,
&dev_attr_charge_control_end_threshold))
@@ -555,7 +555,7 @@ static int lg_battery_add(struct power_supply *battery)
return 0;
}
-static int lg_battery_remove(struct power_supply *battery)
+static int lg_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
{
device_remove_file(&battery->dev,
&dev_attr_charge_control_end_threshold);
diff --git a/drivers/platform/x86/system76_acpi.c b/drivers/platform/x86/system76_acpi.c
index 958df41ad509..9031bd53253f 100644
--- a/drivers/platform/x86/system76_acpi.c
+++ b/drivers/platform/x86/system76_acpi.c
@@ -254,7 +254,7 @@ static struct attribute *system76_battery_attrs[] = {
ATTRIBUTE_GROUPS(system76_battery);
-static int system76_battery_add(struct power_supply *battery)
+static int system76_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
{
// System76 EC only supports 1 battery
if (strcmp(battery->desc->name, "BAT0") != 0)
@@ -266,7 +266,7 @@ static int system76_battery_add(struct power_supply *battery)
return 0;
}
-static int system76_battery_remove(struct power_supply *battery)
+static int system76_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
{
device_remove_groups(&battery->dev, system76_battery_groups);
return 0;
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 8fbe21ebcc52..75ba9e61264e 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -9897,7 +9897,7 @@ ATTRIBUTE_GROUPS(tpacpi_battery);
/* ACPI battery hooking */
-static int tpacpi_battery_add(struct power_supply *battery)
+static int tpacpi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
{
int batteryid = tpacpi_battery_get_id(battery->desc->name);
@@ -9908,7 +9908,7 @@ static int tpacpi_battery_add(struct power_supply *battery)
return 0;
}
-static int tpacpi_battery_remove(struct power_supply *battery)
+static int tpacpi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
{
device_remove_groups(&battery->dev, tpacpi_battery_groups);
return 0;
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 43cc25351aea..c8f01f8f435d 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -3113,7 +3113,7 @@ static struct attribute *toshiba_acpi_battery_attrs[] = {
ATTRIBUTE_GROUPS(toshiba_acpi_battery);
-static int toshiba_acpi_battery_add(struct power_supply *battery)
+static int toshiba_acpi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
{
if (toshiba_acpi == NULL) {
pr_err("Init order issue\n");
@@ -3126,7 +3126,7 @@ static int toshiba_acpi_battery_add(struct power_supply *battery)
return 0;
}
-static int toshiba_acpi_battery_remove(struct power_supply *battery)
+static int toshiba_acpi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
{
device_remove_groups(&battery->dev, toshiba_acpi_battery_groups);
return 0;
diff --git a/include/acpi/battery.h b/include/acpi/battery.h
index b8d56b702c7a..611a2561a014 100644
--- a/include/acpi/battery.h
+++ b/include/acpi/battery.h
@@ -12,8 +12,8 @@
struct acpi_battery_hook {
const char *name;
- int (*add_battery)(struct power_supply *battery);
- int (*remove_battery)(struct power_supply *battery);
+ int (*add_battery)(struct power_supply *battery, struct acpi_battery_hook *hook);
+ int (*remove_battery)(struct power_supply *battery, struct acpi_battery_hook *hook);
struct list_head list;
};
--
2.30.2
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