Comment 6 for bug 325366

I am reopening this to track the cleanup of this. What seems to have happened is, that we created the first kernel _build_ race I know of. As we had CONFIG_STAGING enabled with CONFIG_STAGING_EXCLUDE set to y as well. The Kconfig part of staging was skipped but the staging subtree was included in the build. As the config option name for the staging/ driver and the one in ubuntu/ were the same, both object got build and I can only imagine, that it was a race (-j used) which tree went fist to linking.
The result was possibly the double inclusion that happened here but also the one or the other variant I have seen.
As it seems in the majority of cases wlan-ng won that race, so I will now
a) fix the staging pitfall (tracked in another bug) and
b) sectumsempra the ubuntu/ version of prism2_usb