From 62c8bc0d27a784b09114d67c33e8fa83f350fa77 Mon Sep 17 00:00:00 2001 From: Daniel Scally Date: Thu, 22 Sep 2022 00:04:36 +0100 Subject: [PATCH] ACPI: bus: Add iterator for dependent devices 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 Signed-off-by: Daniel Scally Signed-off-by: Rafael J. Wysocki --- 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 c66d17c3298b8..f016c155b462e 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -745,6 +745,17 @@ 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 * -- 2.30.2