On Fri, Apr 07, 2017 at 02:15:48AM -0700, Oscar Mateo wrote:
> There are some properties that logically belong to the engine class, and some
> that belong to the engine instance. Make it explicit.
>
> v2: Commit message (Tvrtko)
>
> v3:
> - Rebased
> - Exec/uabi id should be per instance (Chris)
>
> v4:
> - Rebased
> - Avoid re-ordering fields for smaller diff (Tvrtko)
> - Bug on oob access to the class array (Michal)
>
> Cc: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
> Cc: Paulo Zanoni <paulo.r.zan...@intel.com>
> Cc: Rodrigo Vivi <rodrigo.v...@intel.com>
> Cc: Chris Wilson <ch...@chris-wilson.co.uk>
> Cc: Daniele Ceraolo Spurio <daniele.ceraolospu...@intel.com>
> Cc: Michal Wajdeczko <michal.wajdec...@intel.com>
> Signed-off-by: Oscar Mateo <oscar.ma...@intel.com>
> ---
<snip>
> @@ -99,8 +112,12 @@
> enum intel_engine_id id)
> {
> const struct engine_info *info = &intel_engines[id];
> + const struct engine_class_info *class_info;
> struct intel_engine_cs *engine;
>
> + GEM_BUG_ON(info->class > ARRAY_SIZE(intel_engine_classes));
> + class_info = &intel_engine_classes[info->class];
> +
Hmm, I think we should check against info->class >= ARRAY_SIZE, as
index 4 can't be used on array[4]
-Michal
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