regression: no interfaces with rtl8180 driver post 2.6.28 git

[Andi Kleen <andi@firstfloor.org>]

I got a 

06:02.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8185 IEEE 802.11a/b/g Wireless LAN Controller (rev 20)

PCI card in a box. With 2.6.28 it works (although rather poorly, always
seems to eventually fallback to 1Mbit/s). With post 2.6.28-git latest the card
is still detected, but no wlan0 interface is created anymore, only
wmaster0:

Some excerpts from the log.

rtl8180 0000:06:02.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
wmaster0 (rtl8180): not using net_device_ops yet
phy0: Selected rate control algorithm 'minstrel'
phy0: hwaddr 00:18:e7:49:f4:32, RTL8185vD + rtl8225z2

On 2.6.28 I get a wlan0 and roughly the same messages (except 
for the net_device_ops one, but I think that's harmless)

I first suspected udev, but there's no trace of wlan0 anywhere
in /sys, so it looks like it's not even create in kernel. 

Git tip 7d3b56ba37a95f1f370f50258ed3954c304c524b 
Userland is opensuse 11.1.  

-Andi

-- 
ak@linux.intel.com