[PATCH v3 2/2] x86: Fix /proc/cpuinfo cpumask warning

Borislav Petkov bp at alien8.de
Mon Oct 31 01:58:57 PDT 2022


On Mon, Oct 31, 2022 at 09:06:04AM +0100, Andrew Jones wrote:
>  The valid cpumask range is [0, nr_cpu_ids) and cpumask_next() always
>  returns a CPU ID greater than its input, which results in its input
>  range being [-1, nr_cpu_ids - 1). Ensure showing CPU info avoids
>  triggering error conditions in cpumask_next() by stopping its loop

What error conditions?

What would happen if @n is outside of the valid range?

-- 
Regards/Gruss,
    Boris.

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