drm/virtio: use virtio_gpu_object->hw_res_handle in virtio_gpu_resource_create_ioctl()

Drop pointless res_id variable in virtio_gpu_resource_create_ioctl(),
just use the hw_res_handle field in virtio_gpu_object directly.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181019061847.18958-5-kraxel@redhat.com

diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 98bb238..ebb0920 100644 (file)
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -217,7 +217,6 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
        struct virtio_gpu_device *vgdev = dev->dev_private;
        struct drm_virtgpu_resource_create *rc = data;
        int ret;
-       uint32_t res_id;
        struct virtio_gpu_object *qobj;
        struct drm_gem_object *obj;
        uint32_t handle = 0;
@@ -244,8 +243,6 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
        INIT_LIST_HEAD(&validate_list);
        memset(&mainbuf, 0, sizeof(struct ttm_validate_buffer));
 
-       virtio_gpu_resource_id_get(vgdev, &res_id);
-
        size = rc->size;
 
        /* allocate a single page size object */
@@ -253,17 +250,16 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
                size = PAGE_SIZE;
 
        qobj = virtio_gpu_alloc_object(dev, size, false, false);
-       if (IS_ERR(qobj)) {
-               ret = PTR_ERR(qobj);
-               goto fail_id;
-       }
+       if (IS_ERR(qobj))
+               return PTR_ERR(qobj);
        obj = &qobj->gem_base;
+       virtio_gpu_resource_id_get(vgdev, &qobj->hw_res_handle);
 
        if (!vgdev->has_virgl_3d) {
-               virtio_gpu_cmd_create_resource(vgdev, qobj, res_id, rc->format,
+               virtio_gpu_cmd_create_resource(vgdev, qobj, qobj->hw_res_handle, rc->format,
                                               rc->width, rc->height);
 
-               ret = virtio_gpu_object_attach(vgdev, qobj, res_id, NULL);
+               ret = virtio_gpu_object_attach(vgdev, qobj, qobj->hw_res_handle, NULL);
        } else {
                /* use a gem reference since unref list undoes them */
                drm_gem_object_get(&qobj->gem_base);
@@ -276,7 +272,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
                        goto fail_unref;
                }
 
-               rc_3d.resource_id = cpu_to_le32(res_id);
+               rc_3d.resource_id = cpu_to_le32(qobj->hw_res_handle);
                rc_3d.target = cpu_to_le32(rc->target);
                rc_3d.format = cpu_to_le32(rc->format);
                rc_3d.bind = cpu_to_le32(rc->bind);
@@ -289,7 +285,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
                rc_3d.flags = cpu_to_le32(rc->flags);
 
                virtio_gpu_cmd_resource_create_3d(vgdev, qobj, &rc_3d, NULL);
-               ret = virtio_gpu_object_attach(vgdev, qobj, res_id, &fence);
+               ret = virtio_gpu_object_attach(vgdev, qobj, qobj->hw_res_handle, &fence);
                if (ret) {
                        ttm_eu_backoff_reservation(&ticket, &validate_list);
                        goto fail_unref;
@@ -297,8 +293,6 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
                ttm_eu_fence_buffer_objects(&ticket, &validate_list, &fence->f);
        }
 
-       qobj->hw_res_handle = res_id;
-
        ret = drm_gem_handle_create(file_priv, obj, &handle);
        if (ret) {
 
@@ -311,7 +305,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
        }
        drm_gem_object_put_unlocked(obj);
 
-       rc->res_handle = res_id; /* similiar to a VM address */
+       rc->res_handle = qobj->hw_res_handle; /* similiar to a VM address */
        rc->bo_handle = handle;
 
        if (vgdev->has_virgl_3d) {
@@ -326,8 +320,6 @@ fail_unref:
        }
 //fail_obj:
 //     drm_gem_object_handle_unreference_unlocked(obj);
-fail_id:
-       virtio_gpu_resource_id_put(vgdev, res_id);
        return ret;
 }