> I've been running it for a day or so on my UP2000+ Alpha with an SMP
> kernel and haven't seen any issues (I manually removed the
> BROKEN_ON_SMP from Kconfig). I guess I can keep testing it for a
> while and if everything seems fine I can submit a patch to remove the
> BROKEN_ON_SMP?

Yes. If possible, stress-test I2C communication a bit. But with the
spinlocks, I am optimistic anyhow.