ReviewGPT

As the maintainer that pulled Sasha's patch, I missed the removal of the "__read_mostly" because I thought Sasha had written it, and that's not something that he would have lightly removed without mentioning it.

I first thought that's even a bug as the hash is set up at boot or module load or unload and doesn't get changed other than that. But it likely could be removed because it's only for the trace output and that's not performance critical. But it should have been a separate patch.