thinkpad_acpi: WARNING: sysfs attribute hotkey_enable is deprecated and will be removed. Hotkey reporting is always enabled

I was starting the system testing package, and this popped up.

ProblemType: KernelOops
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-8-generic 2.6.38-8.42
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ron 1533 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfe020000 irq 46'
   Mixer name : 'Analog Devices AD1984'
   Components : 'HDA:11d41984,17aa20d6,00100400'
   Controls : 31
   Simple ctrls : 19
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7MHT25WW-1.03'
   Mixer name : 'ThinkPad EC 7MHT25WW-1.03'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Wed Apr 13 14:57:09 2011
Failure: oops
Frequency: This has only happened once.
HibernationDevice: RESUME=UUID=cf73fc35-1152-4894-9b8d-c67d615a4a66
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110301.7)
MachineType: LENOVO 766945U
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-8-generic root=UUID=cca1e7ea-ef5f-4e8e-95f9-c410fd92856a ro rootflags=subvol=@ quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-8-generic N/A
 linux-backports-modules-2.6.38-8-generic N/A
 linux-firmware 1.50
SourcePackage: linux
Title: thinkpad_acpi: WARNING: sysfs attribute hotkey_enable is deprecated and will be removed. Hotkey reporting is always enabled
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/09/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7NETC1WW (2.21 )
dmi.board.name: 766945U
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7NETC1WW(2.21):bd10/09/2009:svnLENOVO:pn766945U:pvrThinkPadX61s:rvnLENOVO:rn766945U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 766945U
dmi.product.version: ThinkPad X61s
dmi.sys.vendor: LENOVO