[OpenAFS] More GPL-only Linux mess with 2.6.20

[Russ Allbery]

When trying to build kernel modules against the 2.6.20 in Debian unstable,
we're now getting:

FATAL: modpost: GPL-incompatible module nvidia.ko uses GPL-only 
    symbol 'paravirt_ops'

It looks like asm*/paravirt.h redefines a bunch of operations in terms of
things in the paravirt struct if CONFIG_PARAVIRT is enabled, which it is
by default on the Debian kernels, and paravirt_ops is a GPL-only symbol.

Beyond that, I'm a bit out of my depth.  Is there a way to work around
this that will work with kernels with CONFIG_PARAVIRT enabled?

-- 
Russ Allbery (rra@stanford.edu)             <http://www.eyrie.org/~eagle/>