Re: [Xen-devel] [RFC PATCH V3 05/22] Change MAX_EVTCHNS macro to max_evtchns inline function

[David Vrabel <david.vrabel@xxxxxxxxxx>]

On 27/02/13 14:33, Wei Liu wrote:
> The calculation of max event channels depends on the actual ABI in use. Try to
> avoid gcc-ism macro.
[...]
> +static inline unsigned int max_evtchns(struct domain *d)
> +{
> +    return BITS_PER_EVTCHN_WORD(d) * BITS_PER_EVTCHN_WORD(d);
> +}

This value doesn't change over the life of the domain. Calculate it once
and save it in a new d->max_evtchns field?

David

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