[Intel-gfx] [PATCH] drm/i915: use BUILD_BUG_ON to ensure platform name has been set up

Jani Nikula jani.nikula at intel.com
Tue Feb 28 14:09:35 UTC 2017


On Tue, 28 Feb 2017, Joonas Lahtinen <joonas.lahtinen at linux.intel.com> wrote:
> On ti, 2017-02-28 at 13:11 +0200, Jani Nikula wrote:
>> Leave the runtime check in place in case the platform variable itself
>> comes from bogus sources.
>> 
>> Signed-off-by: Jani Nikula <jani.nikula at intel.com>
>
> <SNIP>
>
>> @@ -890,6 +890,7 @@ enum intel_platform {
>>  	INTEL_BROXTON,
>>  	INTEL_KABYLAKE,
>>  	INTEL_GEMINILAKE,
>> +	INTEL_MAX_PLATFORMS
>>  };
>
> Easily confused to be be off by one, INTEL_MAX_PLATFORMS =
> INTEL_GEMINILAKE, so I suggest changing it to INTEL_NUM_PLATFORMS which
> is explicit.

...and wrong. INTEL_MAX_PLATFORMS is not the same as number of supported
platforms.

BR,
Jani.




>
> Regards, Joonas

-- 
Jani Nikula, Intel Open Source Technology Center


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