> init_mm is no longer exported in 2.6.25, because there are no in tree
> modules that use it.
> But the closed sources nvidia drivers are using it.
> Is it possible to reexport this symbol to let the driver work with this kernel?
The fact that there are no in-tree modules that use init_mm is rather
compelling evidence that it's not a necessary part of the kernel module
API. Nvidia needs to fix their code. If this is a burden, perhaps they
should publish their code under a GPLv2-compatible license so we can
show them how to do it.