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-rw-r--r--Documentation/wmi/driver-development-guide.rst4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/wmi/driver-development-guide.rst b/Documentation/wmi/driver-development-guide.rst
index f7e1089a0559..99ef21fc1c1e 100644
--- a/Documentation/wmi/driver-development-guide.rst
+++ b/Documentation/wmi/driver-development-guide.rst
@@ -96,6 +96,10 @@ on a given machine.
Because of this, WMI drivers should use the state container design pattern as described in
Documentation/driver-api/driver-model/design-patterns.rst.
+.. warning:: Using both GUID-based and non-GUID-based functions for querying WMI data blocks and
+ handling WMI events simultaneously on the same device is guaranteed to corrupt the
+ WMI device state and might lead to erratic behaviour.
+
WMI method drivers
------------------