1 files changed, 0 insertions, 148 deletions

diff --git a/linux-core/drm_gem.c b/linux-core/drm_gem.c
index 434155b3..76d7aa94 100644
--- a/linux-core/drm_gem.c
+++ b/linux-core/drm_gem.c
@@ -117,45 +117,6 @@ drm_gem_object_alloc(struct drm_device *dev, size_t size)
 EXPORT_SYMBOL(drm_gem_object_alloc);
 
 /**
- * Removes the mapping from handle to filp for this object.
- */
-static int
-drm_gem_handle_delete(struct drm_file *filp, int handle)
-{
-	struct drm_device *dev;
-	struct drm_gem_object *obj;
-
-	/* This is gross. The idr system doesn't let us try a delete and
-	 * return an error code.  It just spews if you fail at deleting.
-	 * So, we have to grab a lock around finding the object and then
-	 * doing the delete on it and dropping the refcount, or the user
-	 * could race us to double-decrement the refcount and cause a
-	 * use-after-free later.  Given the frequency of our handle lookups,
-	 * we may want to use ida for number allocation and a hash table
-	 * for the pointers, anyway.
-	 */
-	spin_lock(&filp->table_lock);
-
-	/* Check if we currently have a reference on the object */
-	obj = idr_find(&filp->object_idr, handle);
-	if (obj == NULL) {
-		spin_unlock(&filp->table_lock);
-		return -EINVAL;
-	}
-	dev = obj->dev;
-
-	/* Release reference and decrement refcount. */
-	idr_remove(&filp->object_idr, handle);
-	spin_unlock(&filp->table_lock);
-
-	mutex_lock(&dev->struct_mutex);
-	drm_gem_object_handle_unreference(obj);
-	mutex_unlock(&dev->struct_mutex);
-
-	return 0;
-}
-
-/**
  * Create a handle for this object. This adds a handle reference
  * to the object, which includes a regular reference count. Callers
  * will likely want to dereference the object afterwards.
@@ -215,115 +176,6 @@ drm_gem_object_lookup(struct drm_device *dev, struct drm_file *filp,
 EXPORT_SYMBOL(drm_gem_object_lookup);
 
 /**
- * Releases the handle to an mm object.
- */
-int
-drm_gem_close_ioctl(struct drm_device *dev, void *data,
-		    struct drm_file *file_priv)
-{
-	struct drm_gem_close *args = data;
-	int ret;
-
-	if (!(dev->driver->driver_features & DRIVER_GEM))
-		return -ENODEV;
-
-	ret = drm_gem_handle_delete(file_priv, args->handle);
-
-	return ret;
-}
-
-/**
- * Create a global name for an object, returning the name.
- *
- * Note that the name does not hold a reference; when the object
- * is freed, the name goes away.
- */
-int
-drm_gem_flink_ioctl(struct drm_device *dev, void *data,
-		    struct drm_file *file_priv)
-{
-	struct drm_gem_flink *args = data;
-	struct drm_gem_object *obj;
-	int ret;
-
-	if (!(dev->driver->driver_features & DRIVER_GEM))
-		return -ENODEV;
-
-	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
-	if (obj == NULL)
-		return -EINVAL;
-
-again:
-	if (idr_pre_get(&dev->object_name_idr, GFP_KERNEL) == 0)
-		return -ENOMEM;
-
-	spin_lock(&dev->object_name_lock);
-	if (obj->name) {
-		spin_unlock(&dev->object_name_lock);
-		return -EEXIST;
-	}
-	ret = idr_get_new_above(&dev->object_name_idr, obj, 1,
-				 &obj->name);
-	spin_unlock(&dev->object_name_lock);
-	if (ret == -EAGAIN)
-		goto again;
-
-	if (ret != 0) {
-		mutex_lock(&dev->struct_mutex);
-		drm_gem_object_unreference(obj);
-		mutex_unlock(&dev->struct_mutex);
-		return ret;
-	}
-
-	/*
-	 * Leave the reference from the lookup around as the
-	 * name table now holds one
-	 */
-	args->name = (uint64_t) obj->name;
-
-	return 0;
-}
-
-/**
- * Open an object using the global name, returning a handle and the size.
- *
- * This handle (of course) holds a reference to the object, so the object
- * will not go away until the handle is deleted.
- */
-int
-drm_gem_open_ioctl(struct drm_device *dev, void *data,
-		   struct drm_file *file_priv)
-{
-	struct drm_gem_open *args = data;
-	struct drm_gem_object *obj;
-	int ret;
-	int handle;
-
-	if (!(dev->driver->driver_features & DRIVER_GEM))
-		return -ENODEV;
-
-	spin_lock(&dev->object_name_lock);
-	obj = idr_find(&dev->object_name_idr, (int) args->name);
-	if (obj)
-		drm_gem_object_reference(obj);
-	spin_unlock(&dev->object_name_lock);
-	if (!obj)
-		return -ENOENT;
-
-	ret = drm_gem_handle_create(file_priv, obj, &handle);
-	mutex_lock(&dev->struct_mutex);
-	drm_gem_object_unreference(obj);
-	mutex_unlock(&dev->struct_mutex);
-	if (ret)
-		return ret;
-
-	args->handle = handle;
-	args->size = obj->size;
-
-	return 0;
-}
-
-/**
  * Called at device open time, sets up the structure for handling refcounting
  * of mm objects.
  */