Add a helper macro to iterate over ACPI devices that are flagged as consumers of an initial supplier ACPI device. Signed-off-by: Daniel Scally <djrscally@xxxxxxxxx> --- include/acpi/acpi_bus.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 8b06fef04722..72103bcdd5b3 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -723,6 +723,18 @@ 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); struct acpi_device *acpi_dev_get_first_consumer_dev(struct acpi_device *supplier); + +/** + * 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_first_consumer_dev(supplier); \ + 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
