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Re: [Xen-devel] [PATCH 16/38] arm: Add simple cpu_{sibling, core}_mask

At 15:39 +0000 on 01 Jun (1338565185), Ian Campbell wrote:
> @@ -230,6 +230,13 @@ void __init start_xen(unsigned long boot_phys_offset,
>          }
>      }
>  
> +    if ( !zalloc_cpumask_var(&per_cpu(cpu_sibling_mask, 0)) ||
> +         !zalloc_cpumask_var(&per_cpu(cpu_core_mask, 0)) )
> +        BUG();
> +
> +    cpumask_clear(per_cpu(cpu_sibling_mask, 0));
> +    cpumask_clear(per_cpu(cpu_core_mask, 0));

Aren't these clear()s noops?  

Tim.

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