Greg KH wrote:

> Personally, I think it's a stupid thing to try to license this code in a
> dual way, as any port someone is going to have to do to get this code to
> work in another os will be almost a complete rewrite in the end
> anyway...

I think that companies want to be able to make derivative works without 
needing to make the derivative open source, versus porting it to 
another OS.

- Sean