Re: [PATCH 10/10] powerpc/xive: fix the size of the cpumask used in xive_find_target_in_mask()

On Wed, 2017-08-09 at 17:06 +1000, Michael Ellerman wrote:

  /**
   * cpumask_weight - Count of bits in *srcp
   * @srcp: the cpumask to count bits (< nr_cpu_ids) in.
   */
  static inline unsigned int cpumask_weight(const struct cpumask *srcp)
  {
        return bitmap_weight(cpumask_bits(srcp), nr_cpumask_bits);
  }


I don't know what the comment on srcp is trying to say. It's not true
that it only counts nr_cpu_ids worth of bits.

Right, and that's what bit me. We should report that on lkml and maybe
propose a patch that crops the result...

Cheers,
Ben.