12.1 64bit Lenovo Thinkpad X201 - kernel message during boot - deprecated procfs loaded

in a machine as of title in a fully patched openSUSE 12.1 I am getting following error message in /var/log/messages during boot:

     22.601354] ACPI: Deprecated procfs I/F for battery is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared

So where do I have to clear the entry exactly? How can I clear “CONFIG_ACPI_PROCFS_POWER” and why did it load a deprecated module in the first place?
Thanks for all feedback.