That macro was only ever used to convert ring->private into a gem object
(hence the forceful cast). ring->private doesn't even exist anymore as
it was transmogrified by Chris in:
commit
0d1aacac36530fce058d7a0db3da7befd5765417
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon Aug 26 20:58:11 2013 +0100
drm/i915: Embed the ring->private within the struct intel_ring_buffer
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
/** for phy allocated objects */
struct drm_i915_gem_phys_object *phys_obj;
};
-#define to_gem_object(obj) (&((struct drm_i915_gem_object *)(obj))->base)
#define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)