RE: [PATCH v2 06/10] x86/mce: Convert multiple if () statements into a switch() statement

[Luck, Tony]

>> Intel model number allocation policies aren't necessarily sequential.
>
> Model numbers are assumed to be sequential at least within family 6.

Assumption can only be applied retroactively to simpler times.  Looking
at the timelines and model numbers for pure-Atom, pure-Core, Hybrid,
and Xeon, they are somewhat jumbled.

> For example, does the following change from Qiuxu, unintentionally
> become applicable to Quark CPUs with family -> 5?

Qiuxu starts the function with:

+       /* Older CPUs don't need quirks. */
+       if (c->x86 < 6)
+               return;

So Quark leaves the function early.

-Tony