RE: [PATCH v2] x86/cpu: Fix x86_match_cpu() to match just X86_VENDOR_INTEL

[Luck, Tony]

> I'm confused. Why not simply use say -1 for wildcard vendor match, -2 for no vendor ID (no CPUID or other known probing mechanism) and -3 for unrecognized vendor (vendor detectable but not known.)

It was really convenient to have "0" be the wildcard for all of vendor, family, model, stepping, feature because users of x86_match_cpu() could just initialize the fields they cared about in the struct x86_cpu_id and have the compiler make the rest be 0 automagically.

But X86_VENDOR_INTEL being zero has always been a thorn in that scheme.

-Tony