[Intel-gfx] [PATCH i-g-t] lib/i915/gem_engine_topology.c - intel_get_current_engine invalid result

[Chris Wilson]

Quoting Dale B Stimson (2020-02-13 19:26:06)
> Function intel_get_current_engine() should return NULL (instead of
> engine 0) if there are no engines.

There should be some igt to put basic use of for_each_engine() though
its paces. Nothing fancy, just complete a loop....

Andi, am I imagining this? I swear saw patches from you to do the
basics.

Anyway, there should be some, and this is worth adding to them,
for_each_context_engine() on an empty engines[] and assert we do not
enter the loop.
-Chris