[Intel-gfx] [PATCH] drm/i915: Enable refcount debugging for default debug levels

[Tomi Sarvela]

On 6/13/19 3:46 PM, Rodrigo Vivi wrote:
> On Thu, Jun 13, 2019 at 01:28:42PM +0100, Chris Wilson wrote:
>> refcount_t is our first line of defence against use-after-free, so let's
>> enable it for debugging.
> 
> It seems a nice thing to have on debug by default and they promise no
> performance impact.
> 
> Acked-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
> 
> Well, I hope our CI doesn't complain, but if it does we can remove later.
> anyway,
> Cc: Martin
> Cc: Tomi
> Cc: Arek

This change will be seen in forced build CI_DRM_6260.

Tomi

>>
>> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
>> ---
>>   drivers/gpu/drm/i915/Kconfig.debug | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/gpu/drm/i915/Kconfig.debug b/drivers/gpu/drm/i915/Kconfig.debug
>> index 09aa0f4c8bf1..8d922bb4d953 100644
>> --- a/drivers/gpu/drm/i915/Kconfig.debug
>> +++ b/drivers/gpu/drm/i915/Kconfig.debug
>> @@ -21,6 +21,7 @@ config DRM_I915_DEBUG
>>           depends on DRM_I915
>>           select DEBUG_FS
>>           select PREEMPT_COUNT
>> +        select REFCOUNT_FULL
>>           select I2C_CHARDEV
>>           select STACKDEPOT
>>           select DRM_DP_AUX_CHARDEV
>> -- 
>> 2.20.1


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