RE: [PATCH 22/25] x86/mcheck: Do the init in one place

[Luck, Tony]

> That's why the hotplug callback mce_disable_cpu() doesn't fiddle with
> CR4 - it only clears the bits in MCi_CTL. And I think we should remain
> that way.

N.B. See vendor_disable_error_reporting() ... on Intel we don't clear MCi_CTL.

-Tony