[Bug 210205] New: Repairing for btle-devices fail

[Bug 210205] New: Repairing for btle-devices fail

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=210205

            Bug ID: 210205
           Summary: Repairing for btle-devices fail
           Product: Drivers
           Version: 2.5
    Kernel Version: Ubuntu 5.10.0-3-generic
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Bluetooth
          Assignee: linux-bluetooth@vger.kernel.org
          Reporter: marko.lavikainen@netkoti.fi
        Regression: No

Created attachment 293677
  --> https://bugzilla.kernel.org/attachment.cgi?id=293677&action=edit
Log from bluetoothctl

I have recently bought two Bluetooth devices:

 - Microsoft Bluetooth Mouse 3600 (requires confirmation for pairing)
 - Microsoft Surface Keyboard (requires passcode for pairing)

Both devices pair with the system and work fine. However, at random times
(maybe when idling) both devices change their mac-addresses to a new one.

This is a problem, because pairing disconnects, and bluez sees those devices as
new devices. Thus I need to manually repair them and... well, it should not be
like that.

I did make a bit crude python-script that communicates with 'bluetoothctl' and
repairs the mouse whenever it is discovered as a new device. But that does not
work with the keyboard because of the passcode requirement.

I attached some log from 'bluetoothctl'.

Is it possible to detect in the device driver that newly discovered device is
actually the same but with different mac-address and repair it automatically?

Bluetoothctl version is 5.53

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