drm: kill drm_mm_node->private

Only ever assigned, never used.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[glisse: I will re-add if needed for range-restricted allocations]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>

4 files changed, 1 insertions, 12 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 074385882ccf..75061b305b8c 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2633,10 +2633,8 @@ i915_gem_object_bind_to_gtt(struct drm_gem_object *obj, unsigned alignment)
         if (free_space != NULL) {
                 obj_priv->gtt_space = drm_mm_get_block(free_space, obj->size,
                                                        alignment);
-                if (obj_priv->gtt_space != NULL) {
-                        obj_priv->gtt_space->private = obj;
+                if (obj_priv->gtt_space != NULL)
                         obj_priv->gtt_offset = obj_priv->gtt_space->start;
-                }
         }
         if (obj_priv->gtt_space == NULL) {
                 /* If the gtt is empty and we're still having trouble
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 555ebb12ace8..9763288c6b2d 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -476,7 +476,6 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo, bool remove_all)
                         ++put_count;
                 }
                 if (bo->mem.mm_node) {
-                        bo->mem.mm_node->private = NULL;
                         drm_mm_put_block(bo->mem.mm_node);
                         bo->mem.mm_node = NULL;
                 }
@@ -670,7 +669,6 @@ static int ttm_bo_evict(struct ttm_buffer_object *bo, bool interruptible,
                         printk(KERN_ERR TTM_PFX "Buffer eviction failed\n");
                 spin_lock(&glob->lru_lock);
                 if (evict_mem.mm_node) {
-                        evict_mem.mm_node->private = NULL;
                         drm_mm_put_block(evict_mem.mm_node);
                         evict_mem.mm_node = NULL;
                 }
@@ -929,8 +927,6 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
                 mem->mm_node = node;
                 mem->mem_type = mem_type;
                 mem->placement = cur_flags;
-                if (node)
-                        node->private = bo;
                 return 0;
         }
 
@@ -973,7 +969,6 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
                                                 interruptible, no_wait_reserve, no_wait_gpu);
                 if (ret == 0 && mem->mm_node) {
                         mem->placement = cur_flags;
-                        mem->mm_node->private = bo;
                         return 0;
                 }
                 if (ret == -ERESTARTSYS)
@@ -1029,7 +1024,6 @@ int ttm_bo_move_buffer(struct ttm_buffer_object *bo,
 out_unlock:
         if (ret && mem.mm_node) {
                 spin_lock(&glob->lru_lock);
-                mem.mm_node->private = NULL;
                 drm_mm_put_block(mem.mm_node);
                 spin_unlock(&glob->lru_lock);
         }
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 13012a1f1486..7cffb3e04232 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -353,8 +353,6 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
         fbo->vm_node = NULL;
 
         fbo->sync_obj = driver->sync_obj_ref(bo->sync_obj);
-        if (fbo->mem.mm_node)
-                fbo->mem.mm_node->private = (void *)fbo;
         kref_init(&fbo->list_kref);
         kref_init(&fbo->kref);
         fbo->destroy = &ttm_transfered_destroy;
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index 4c10be39a43b..da94071b1703 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -48,7 +48,6 @@ struct drm_mm_node {
         unsigned long start;
         unsigned long size;
         struct drm_mm *mm;
-        void *private;
 };
 
 struct drm_mm {