Add a helper macro to iterate over ACPI devices that are flagged as consumers of an initial supplier ACPI device. Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx> Signed-off-by: Daniel Scally <djrscally@xxxxxxxxx> --- Changes in v2: - switched to use acpi_dev_get_next_consumer_dev() in the loop init include/acpi/acpi_bus.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index cdc726d251b6..7fbe690a5b33 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -699,6 +699,17 @@ bool acpi_dev_ready_for_enumeration(const struct acpi_device *device); struct acpi_device *acpi_dev_get_next_consumer_dev(struct acpi_device *supplier, struct acpi_device *start); +/** + * for_each_acpi_consumer_dev - iterate over the consumer ACPI devices for a + * given supplier + * @supplier: Pointer to the supplier's ACPI device + * @consumer: Pointer to &struct acpi_device to hold the consumer, initially NULL + */ +#define for_each_acpi_consumer_dev(supplier, consumer) \ + for (consumer = acpi_dev_get_next_consumer_dev(supplier, NULL); \ + consumer; \ + consumer = acpi_dev_get_next_consumer_dev(supplier, consumer)) + struct acpi_device * acpi_dev_get_next_match_dev(struct acpi_device *adev, const char *hid, const char *uid, s64 hrv); struct acpi_device * -- 2.25.1
