EXPORT_SYMBOL_GPL(paravirt_ops);

[chrisw at sous-sol.org (Chris Wright)]

* Zachary Amsden (zach at vmware.com) wrote:
> EXPORT_SYMBOL_GPL is still possible - if you patch over every op in 
> paravirt_ops.  Then only the paravirt modules need to be GPL, not all 
> modules.

Problem is the pervasive nature.  So any old module that was doing
local_irq_disable() will need access to the paravirt_ops structure via

local_irq_disable() -> raw_local_irq_disable -> paravirt_ops.irq_disable()

IOW, all modules need paravirt_ops access, otherwise non-GPL modules
will fail to load with "Unknown symbol paravirt_ops."  We can't make an
interface change like that.

thanks,
-chris