On 04/11/2013 02:11 AM, David Rientjes wrote:
> On Thu, 11 Apr 2013, Srivatsa S. Bhat wrote:
>
>> diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
>> index ede2749..2489042 100644
>> --- a/include/linux/mmzone.h
>> +++ b/include/linux/mmzone.h
>> @@ -948,9 +948,7 @@ extern struct zone *next_zone(struct zone *zone);
>> for (zone = (first_online_pgdat())->node_zones; \
>> zone; \
>> zone = next_zone(zone)) \
>> - if (!populated_zone(zone)) \
>> - ; /* do nothing */ \
>> - else
>> + if (populated_zone(zone))
>>
>> static inline struct zone *zonelist_zone(struct zoneref *zoneref)
>> {
>
> Nack, it's written the way it is to avoid ambiguous else statements
> following it. People do things like
>
> for_each_populated_zone(z)
> if (...) {
> } else (...) {
> }
>
> and it's now ambiguous (and should warn with -Wparentheses).
>
Hmm, fair enough. Please ignore this patch then. Thanks!
Regards,
Srivatsa S. Bhat
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