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

[Rodrigo Vivi]

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

> 
> 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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