wpa and ipw2100 on hoary

[Karl-Heinz Nirschl]

hi,
i can't get wpa working with the latest 2.6.10-5 an wpa_supplicant on a
ibm thinkpad.

# wpa_supplicant  -ieth0 -Dipw

gives me: 

ioctl[IPW_IOCTL_WPA_SUPPLICANT]: Operation not supported
ioctl[IPW_IOCTL_WPA_SUPPLICANT]: Operation not supported
Failed to set encryption.
ioctl[IPW_IOCTL_WPA_SUPPLICANT]: Operation not supported
Failed to set encryption.
ioctl[IPW_IOCTL_WPA_SUPPLICANT]: Operation not supported
Failed to set encryption.
ioctl[IPW_IOCTL_WPA_SUPPLICANT]: Operation not supported
Failed to set encryption.
ioctl[IPW_IOCTL_WPA_SUPPLICANT]: Operation not supported
ioctl[IPW_IOCTL_WPA_SUPPLICANT]: Operation not supported
Signal 2 received - terminating
ioctl[IPW_IOCTL_WPA_SUPPLICANT]: Operation not supported
ioctl[IPW_IOCTL_WPA_SUPPLICANT]: Operation not supported
ioctl[IPW_IOCTL_WPA_SUPPLICANT]: Operation not supported
ioctl[IPW_IOCTL_WPA_SUPPLICANT]: Operation not supported

if i use a custom kernel (debian source 2.6.11-2) with ipw2100 (1.1.0-1)
as modules wpa works.

strange thing:
in /boot/config-2.6.10-5:
CONFIG_IEEE80211_WPA=m


am i just doing something wrong or is this a bug? maybe related to:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=290725&archive=yes