| Message ID | 20221130184101.357899-1-W_Armin@gmx.de (mailing list archive) |
|---|---|
| State | Mainlined, archived |
| Headers | show |
| Series | ACPI: battery: Call power_supply_changed() when adding hooks | expand |
On Wed, Nov 30, 2022 at 7:41 PM Armin Wolf <W_Armin@gmx.de> wrote: > > If a battery hook is added to a battery, userspace software > is not informed that the available properties of the battery > might have changed. This for example causes upower to react > slowly if a new battery hook is added during runtime. > > Fix this by calling power_supply_changed() if a battery hook > was successfully added/removed. > > Tested on a Dell Inspiron 3505. > > Signed-off-by: Armin Wolf <W_Armin@gmx.de> > --- > drivers/acpi/battery.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c > index 9482b0b6eadc..bf99053e5021 100644 > --- a/drivers/acpi/battery.c > +++ b/drivers/acpi/battery.c > @@ -696,7 +696,8 @@ 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); > + if (!hook->remove_battery(battery->bat, hook)) > + power_supply_changed(battery->bat); > } > list_del(&hook->list); > if (lock) > @@ -735,6 +736,8 @@ void battery_hook_register(struct acpi_battery_hook *hook) > __battery_hook_unregister(hook, 0); > goto end; > } > + > + power_supply_changed(battery->bat); > } > pr_info("new extension: %s\n", hook->name); > end: > -- Applied as 6.2 material, but I had to rebase it, so please check the result in my bleeding-edge branch. Thanks!
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 9482b0b6eadc..bf99053e5021 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -696,7 +696,8 @@ 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); + if (!hook->remove_battery(battery->bat, hook)) + power_supply_changed(battery->bat); } list_del(&hook->list); if (lock) @@ -735,6 +736,8 @@ void battery_hook_register(struct acpi_battery_hook *hook) __battery_hook_unregister(hook, 0); goto end; } + + power_supply_changed(battery->bat); } pr_info("new extension: %s\n", hook->name); end:
If a battery hook is added to a battery, userspace software is not informed that the available properties of the battery might have changed. This for example causes upower to react slowly if a new battery hook is added during runtime. Fix this by calling power_supply_changed() if a battery hook was successfully added/removed. Tested on a Dell Inspiron 3505. Signed-off-by: Armin Wolf <W_Armin@gmx.de> --- drivers/acpi/battery.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) -- 2.30.2