Re: [PATCH v3 1/5] x86/cpu: Factor init_cpu_info() out of identify_cpu()

[bot+bpf-ci]

> x86/cpu: Factor init_cpu_info() out of identify_cpu()
>
> identify_cpu() unconditionally resets the struct cpuinfo_x86 fields to
> their default values and clears the capability arrays with memset()
> before rescanning the CPU to fill it in again.
>
> However the boot CPU capabilities have already been scanned by
> early_identify_cpu(), with interrupts disabled.
>
> Introduce init_cpu_info() helper in preparation for letting the
> callers decide whether the reset is needed.
>
> No functional changes.

This isn't a bug, but would it be worth adding a line noting that
c->extended_cpuid_level = 0 also moves here from generic_identify(),
which identify_cpu() is the only caller of? That is the one part of the
move that isn't local to identify_cpu(), so it would make the "No
functional changes" claim easier to confirm.


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