diff options
Diffstat (limited to 'drivers/acpi/bus.c')
| -rw-r--r-- | drivers/acpi/bus.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 1fc24f4fbcb4..b67d2ee77cd1 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -1088,6 +1088,32 @@ int acpi_bus_for_each_dev(int (*fn)(struct device *, void *), void *data) } EXPORT_SYMBOL_GPL(acpi_bus_for_each_dev); +struct acpi_dev_walk_context { + int (*fn)(struct acpi_device *, void *); + void *data; +}; + +static int acpi_dev_for_one_check(struct device *dev, void *context) +{ + struct acpi_dev_walk_context *adwc = context; + + if (dev->bus != &acpi_bus_type) + return 0; + + return adwc->fn(to_acpi_device(dev), adwc->data); +} + +int acpi_dev_for_each_child(struct acpi_device *adev, + int (*fn)(struct acpi_device *, void *), void *data) +{ + struct acpi_dev_walk_context adwc = { + .fn = fn, + .data = data, + }; + + return device_for_each_child(&adev->dev, &adwc, acpi_dev_for_one_check); +} + /* -------------------------------------------------------------------------- Initialization/Cleanup -------------------------------------------------------------------------- */ |