ACPI / scan: .match() callback for ACPI scan handlers (aca0a4eb) · Commits · 戴 / test

Introduce a .match() callback for ACPI scan handlers to allow them to use more elaborate matching algorithms if necessary. That is needed for the upcoming PNP scan handler in particular. This change is based on a Zhang Rui's prototype. Signed-off-by:

Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by:

Mika Westerberg <mika.westerberg@linux.intel.com>

drivers/acpi/scan.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1977,6 +1977,9 @@ static bool acpi_scan_handler_matching(struct acpi_scan_handler *handler,
		{
		const struct acpi_device_id *devid;

		if (handler->match)
		return handler->match(idstr, matchid);

		for (devid = handler->ids; devid->id[0]; devid++)
		if (!strcmp((char *)devid->id, idstr)) {
		if (matchid)

include/acpi/acpi_bus.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -131,6 +131,7 @@ static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
		struct acpi_scan_handler {
		const struct acpi_device_id *ids;
		struct list_head list_node;
		bool (match)(char idstr, const struct acpi_device_id **matchid);
		int (attach)(struct acpi_device dev, const struct acpi_device_id *id);
		void (detach)(struct acpi_device dev);
		void (bind)(struct device phys_dev);

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