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ACPI: bus: Introduce acpi_bus_for_each_dev()

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In order to avoid exposing acpi_bus_type to modules, introduce an
acpi_bus_for_each_dev() helper for iterating over all ACPI device
objects and make typec_link_ports() use it instead of the raw
bus_for_each_dev() along with acpi_bus_type.

Having done that, drop the acpi_bus_type export.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
This commit is contained in:
Rafael J. Wysocki 2022-02-22 20:51:42 +01:00
parent 7e57714cd0
commit 3c36fe9302
3 changed files with 9 additions and 2 deletions
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7
drivers/acpi/bus.c
View File

@ -1043,7 +1043,12 @@ struct bus_type acpi_bus_type = {
.remove = acpi_device_remove,
.uevent = acpi_device_uevent,
};
EXPORT_SYMBOL_GPL(acpi_bus_type);
int acpi_bus_for_each_dev(int (*fn)(struct device *, void *), void *data)
{
return bus_for_each_dev(&acpi_bus_type, NULL, data, fn);
}
EXPORT_SYMBOL_GPL(acpi_bus_for_each_dev);
/* --------------------------------------------------------------------------
Initialization/Cleanup

2
drivers/usb/typec/port-mapper.c
View File

@ -59,7 +59,7 @@ int typec_link_ports(struct typec_port *con)
if (!has_acpi_companion(&con->dev))
return 0;
bus_for_each_dev(&acpi_bus_type, NULL, &arg, typec_port_match);
acpi_bus_for_each_dev(typec_port_match, &arg);
if (!arg.match)
return 0;

2
include/acpi/acpi_bus.h
View File

@ -480,6 +480,8 @@ void acpi_initialize_hp_context(struct acpi_device *adev,
/* acpi_device.dev.bus == &acpi_bus_type */
extern struct bus_type acpi_bus_type;
int acpi_bus_for_each_dev(int (*fn)(struct device *, void *), void *data);
/*
* Events
* ------