RE: [PATCH v2] x86/cpufeature: Add feature dependency checks

[Luck, Tony]

> +void filter_feature_dependencies(struct cpuinfo_x86 *c)
> +{
> +     const struct cpuid_dep *d;
> +
> +     for (d = cpuid_deps; d->feature; d++) {
> +             if (cpu_has(c, d->feature) && !cpu_has(c, d->depends))
> +                     do_clear_cpu_cap(c, d->feature);
> +     }
> +}

The dependency check found something very wrong. Should there be
a pr_warn() to give some clue that Linux papered over this problem?

-Tony