rb_to_uabi_engine 1809 drivers/gpu/drm/i915/i915_drv.h for ((engine__) = rb_to_uabi_engine(rb_first(&(i915__)->uabi_engines));\ rb_to_uabi_engine 1811 drivers/gpu/drm/i915/i915_drv.h (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))