7  *  GUID parsing code from ldm.c is:
41 	guid_t guid;  member
52 static_assert(sizeof(typeof_member(struct guid_block, guid)) == 16);
74 	const guid_t *guid;  member
81  * If the GUID data block is marked as expensive, we must enable and
85 #define ACPI_WMI_METHOD      BIT(1)	/* GUID is a method */
86 #define ACPI_WMI_STRING      BIT(2)	/* GUID takes & returns a string */
87 #define ACPI_WMI_EVENT       BIT(3)	/* GUID is an event */
99  * GUID parsing functions
102 static bool guid_parse_and_compare(const char *string, const guid_t *guid)  in guid_parse_and_compare()  argument
109 	return guid_equal(&guid_input, guid);  in guid_parse_and_compare()
122 		if (guid_parse_and_compare(id->guid_string, &wblock->gblock.guid))  in find_guid_context()
156 	const guid_t *guid = data;  in wmidev_match_guid()  local
158 	/* Legacy GUID-based functions are restricted to only see  in wmidev_match_guid()
159 	 * a single WMI device for each GUID.  in wmidev_match_guid()
164 	if (guid_equal(guid, &wblock->gblock.guid))  in wmidev_match_guid()
219 	guid_t guid;  in wmi_find_device_by_guid()  local
222 	ret = guid_parse(guid_string, &guid);  in wmi_find_device_by_guid()
226 	dev = bus_find_device(&wmi_bus_type, NULL, &guid, wmidev_match_guid);  in wmi_find_device_by_guid()
382 	/* Check GUID is a data block */  in __query_block()
514 	/* Check GUID is a data block */  in wmidev_block_set()
534  * @guid: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
542 acpi_status wmi_install_notify_handler(const char *guid,  in wmi_install_notify_handler()  argument
550 	wdev = wmi_find_device_by_guid(guid);  in wmi_install_notify_handler()
578  * @guid: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
584 acpi_status wmi_remove_notify_handler(const char *guid)  in wmi_remove_notify_handler()  argument
590 	wdev = wmi_find_device_by_guid(guid);  in wmi_remove_notify_handler()
617  * wmi_has_guid - Check if a GUID is available
620  * Check if a given GUID is defined by _WDG.
622  * Return: True if GUID is available, false otherwise.
639  * wmi_get_acpi_device_uid() - Get _UID name of ACPI device that defines GUID (deprecated)
642  * Find the _UID of ACPI device associated with this WMI GUID.
644  * Return: The ACPI _UID field value or NULL if the WMI GUID was not found.
673 	return sysfs_emit(buf, "wmi:%pUL\n", &wblock->gblock.guid);  in modalias_show()
682 	return sysfs_emit(buf, "%pUL\n", &wblock->gblock.guid);  in guid_show()
684 static DEVICE_ATTR_RO(guid);
793 	if (add_uevent_var(env, "MODALIAS=wmi:%pUL", &wblock->gblock.guid))  in wmi_dev_uevent()
796 	if (add_uevent_var(env, "WMI_GUID=%pUL", &wblock->gblock.guid))  in wmi_dev_uevent()
824 		if (guid_parse_and_compare(id->guid_string, &wblock->gblock.guid))  in wmi_dev_match()
848 	 * so they are blocked from probing WMI devices with a duplicated GUID.  in wmi_dev_probe()
969 	if (guid_equal(&wblock->gblock.guid, context->guid))  in wmi_count_guids()
975 static int guid_count(const guid_t *guid)  in guid_count()  argument
978 		.guid = guid,  in guid_count()
994 			return dev_set_name(&wblock->dev.dev, "%pUL-%d", &wblock->gblock.guid,  in wmi_dev_set_name()
997 			return dev_set_name(&wblock->dev.dev, "%pUL", &wblock->gblock.guid);  in wmi_dev_set_name()
1000 	return dev_set_name(&wblock->dev.dev, "%pUL-%d", &wblock->gblock.guid, wblock->dev.dev.id);  in wmi_dev_set_name()
1078 	count = guid_count(&wblock->gblock.guid);  in wmi_create_device()
1122  * Parse the _WDG method for the GUID data blocks
1155 			dev_info(wmi_bus_dev, FW_INFO "%pUL has zero instances\n", &gblock[i].guid);  in parse_wdg()
1177 				&wblock->gblock.guid);  in parse_wdg()