drm/virtio: no need to pass virtio_gpu_ctrl_hdr

We can get it from vbuf.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200205181955.202485-5-olvaffe@gmail.comSigned-off-by: Gerd Hoffmann <kraxel@redhat.com>

drivers/gpu/drm/virtio/virtgpu_vq.c

@@ -358,7 +358,6 @@ static bool virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev,
 
 static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
 						struct virtio_gpu_vbuffer *vbuf,
-						struct virtio_gpu_ctrl_hdr *hdr,
 						struct virtio_gpu_fence *fence)
 {
 	struct virtqueue *vq = vgdev->ctrlq.vq;
@@ -399,8 +398,9 @@ static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
 		goto again;
 	}
 
-	if (hdr && fence) {
-		virtio_gpu_fence_emit(vgdev, hdr, fence);
+	if (fence) {
+		virtio_gpu_fence_emit(vgdev, virtio_gpu_vbuf_ctrl_hdr(vbuf),
+				      fence);
 		if (vbuf->objs) {
 			virtio_gpu_array_add_fence(vbuf->objs, &fence->f);
 			virtio_gpu_array_unlock_resv(vbuf->objs);
@@ -439,7 +439,7 @@ void virtio_gpu_enable_notify(struct virtio_gpu_device *vgdev)
 static void virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev,
 					 struct virtio_gpu_vbuffer *vbuf)
 {
-	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, NULL, NULL);
+	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, NULL);
 }
 
 static void virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev,
@@ -503,7 +503,7 @@ void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
 	cmd_p->width = cpu_to_le32(params->width);
 	cmd_p->height = cpu_to_le32(params->height);
 
-	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
+	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
 	bo->created = true;
 }
 
@@ -535,7 +535,7 @@ static void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgde
 	cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING);
 	cmd_p->resource_id = cpu_to_le32(resource_id);
 
-	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
+	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
 }
 
 void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev,
@@ -610,7 +610,7 @@ void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
 	cmd_p->r.x = cpu_to_le32(x);
 	cmd_p->r.y = cpu_to_le32(y);
 
-	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
+	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
 }
 
 static void
@@ -633,7 +633,7 @@ virtio_gpu_cmd_resource_attach_backing(struct virtio_gpu_device *vgdev,
 	vbuf->data_buf = ents;
 	vbuf->data_size = sizeof(*ents) * nents;
 
-	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
+	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
 }
 
 static void virtio_gpu_cmd_get_display_info_cb(struct virtio_gpu_device *vgdev,
@@ -992,7 +992,7 @@ virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
 	cmd_p->nr_samples = cpu_to_le32(params->nr_samples);
 	cmd_p->flags = cpu_to_le32(params->flags);
 
-	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
+	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
 	bo->created = true;
 }
 
@@ -1025,7 +1025,7 @@ void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
 	cmd_p->offset = cpu_to_le64(offset);
 	cmd_p->level = cpu_to_le32(level);
 
-	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
+	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
 }
 
 void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
@@ -1051,7 +1051,7 @@ void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
 	cmd_p->offset = cpu_to_le64(offset);
 	cmd_p->level = cpu_to_le32(level);
 
-	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
+	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
 }
 
 void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
@@ -1074,7 +1074,7 @@ void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
 	cmd_p->hdr.ctx_id = cpu_to_le32(ctx_id);
 	cmd_p->size = cpu_to_le32(data_size);
 
-	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
+	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
 }
 
 int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,