Using the rt2x00 driver on my PCMCIA nic causes big troubles: network manager 
somehow breaks suspend and even refuses to shutdown:
 Sep  2 23:16:19 hamerkeuh kernel: [  974.460000] unregister_netdevice: waiting 
for wlan0 to become free. Usage count = 1

This message repeats over and over again, rmmod does not work, all
operations that require network block (sudo won't work, lucky I have a
root account), the only remedy is the power button.

Without networkmanager I can use the driver (with wicd or manually with
wpa_supplicant), but with said performance loss.

The legacy driver still works fine for me, suspend/resume works, and
throughput is good.

Please re-enable the legacy driver for rt2500 in gutsy!! The new rt2x00
driver, although promising, is *not* ready.

-- 
[Gutsy] performance of new rt2500pci driver is poor
https://bugs.launchpad.net/bugs/129719
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