drm/nouveau/nvif: replace path-based object identification

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

2 files changed, 7 insertions, 12 deletions

diff --git a/drivers/gpu/drm/nouveau/nvif/client.c b/drivers/gpu/drm/nouveau/nvif/client.c
index 4a830ebf9661..64d3d0c37a83 100644
--- a/drivers/gpu/drm/nouveau/nvif/client.c
+++ b/drivers/gpu/drm/nouveau/nvif/client.c
@@ -50,7 +50,6 @@ nvif_client_fini(struct nvif_client *client)
 	if (client->driver) {
 		client->driver->fini(client->object.priv);
 		client->driver = NULL;
-		client->object.parent = NULL;
 		client->object.client = NULL;
 		nvif_object_fini(&client->object);
 	}
@@ -79,7 +78,6 @@ nvif_client_init(const char *driver, const char *name, u64 device,
 		return ret;
 
 	client->object.client = client;
-	client->object.parent = &client->object;
 	client->object.handle = ~0;
 	client->route = NVIF_IOCTL_V0_ROUTE_NVIF;
 	client->super = true;
diff --git a/drivers/gpu/drm/nouveau/nvif/object.c b/drivers/gpu/drm/nouveau/nvif/object.c
index a727f72ca234..b914e34a43c3 100644
--- a/drivers/gpu/drm/nouveau/nvif/object.c
+++ b/drivers/gpu/drm/nouveau/nvif/object.c
@@ -36,14 +36,11 @@ nvif_object_ioctl(struct nvif_object *object, void *data, u32 size, void **hack)
 	} *args = data;
 
 	if (size >= sizeof(*args) && args->v0.version == 0) {
+		if (object != &client->object)
+			args->v0.object = nvif_handle(object);
+		else
+			args->v0.object = 0;
 		args->v0.owner = NVIF_IOCTL_V0_OWNER_ANY;
-		args->v0.path_nr = 0;
-		while (args->v0.path_nr < ARRAY_SIZE(args->v0.path)) {
-			args->v0.path[args->v0.path_nr++] = object->handle;
-			if (object->parent == object)
-				break;
-			object = object->parent;
-		}
 	} else
 		return -ENOSYS;
 
@@ -216,13 +213,12 @@ nvif_object_init(struct nvif_object *parent, u32 handle, u32 oclass,
 	int ret = 0;
 
 	object->client = NULL;
-	object->parent = parent;
 	object->handle = handle;
 	object->oclass = oclass;
 	object->map.ptr = NULL;
 	object->map.size = 0;
 
-	if (object->parent) {
+	if (parent) {
 		if (!(args = kmalloc(sizeof(*args) + size, GFP_KERNEL))) {
 			nvif_object_fini(object);
 			return -ENOMEM;
@@ -232,7 +228,8 @@ nvif_object_init(struct nvif_object *parent, u32 handle, u32 oclass,
 		args->ioctl.type = NVIF_IOCTL_V0_NEW;
 		args->new.version = 0;
 		args->new.route = parent->client->route;
-		args->new.token = (unsigned long)(void *)object;
+		args->new.token = nvif_handle(object);
+		args->new.object = nvif_handle(object);
 		args->new.handle = handle;
 		args->new.oclass = oclass;