[PATCH 2/4] platform/x86: wmi: Mark GUID-based WMI interface as deprecated

From: Armin Wolf
Date: Thu Apr 20 2023 - 19:32:53 EST


The WMI driver core supports a more mordern bus-based interface for
interacting with WMI devices. The older GUID-based interface depends
on each WMI GUID and notification id being unique on a given system,
which turned out is not the case.
Mark the older interface as deprecated since new WMI drivers should
use the bus-based interface to avoid this issues.

Signed-off-by: Armin Wolf <W_Armin@xxxxxx>
---
drivers/platform/x86/wmi.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index e4b41dca70c7..ae654487718e 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -264,7 +264,7 @@ int set_required_buffer_size(struct wmi_device *wdev, u64 length)
EXPORT_SYMBOL_GPL(set_required_buffer_size);

/**
- * wmi_evaluate_method - Evaluate a WMI method
+ * wmi_evaluate_method - Evaluate a WMI method (deprecated)
* @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
* @instance: Instance index
* @method_id: Method ID to call
@@ -457,7 +457,7 @@ union acpi_object *wmidev_block_query(struct wmi_device *wdev, u8 instance)
EXPORT_SYMBOL_GPL(wmidev_block_query);

/**
- * wmi_set_block - Write to a WMI block
+ * wmi_set_block - Write to a WMI block (deprecated)
* @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
* @instance: Instance index
* @in: Buffer containing new values for the data block
@@ -568,7 +568,7 @@ static void wmi_notify_debug(u32 value, void *context)
}

/**
- * wmi_install_notify_handler - Register handler for WMI events
+ * wmi_install_notify_handler - Register handler for WMI events (deprecated)
* @guid: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
* @handler: Function to handle notifications
* @data: Data to be returned to handler when event is fired
@@ -614,7 +614,7 @@ acpi_status wmi_install_notify_handler(const char *guid,
EXPORT_SYMBOL_GPL(wmi_install_notify_handler);

/**
- * wmi_remove_notify_handler - Unregister handler for WMI events
+ * wmi_remove_notify_handler - Unregister handler for WMI events (deprecated)
* @guid: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
*
* Unregister handler for events sent to the ACPI-WMI mapper device.
@@ -661,7 +661,7 @@ acpi_status wmi_remove_notify_handler(const char *guid)
EXPORT_SYMBOL_GPL(wmi_remove_notify_handler);

/**
- * wmi_get_event_data - Get WMI data associated with an event
+ * wmi_get_event_data - Get WMI data associated with an event (deprecated)
*
* @event: Event to find
* @out: Buffer to hold event data
@@ -700,7 +700,7 @@ bool wmi_has_guid(const char *guid_string)
EXPORT_SYMBOL_GPL(wmi_has_guid);

/**
- * wmi_get_acpi_device_uid() - Get _UID name of ACPI device that defines GUID
+ * wmi_get_acpi_device_uid() - Get _UID name of ACPI device that defines GUID (deprecated)
* @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
*
* Find the _UID of ACPI device associated with this WMI GUID.
--
2.30.2