virtio-gpu: remove unused config_size

Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: NChristophe Fergeau <cfergeau@redhat.com>
Reviewed-by: NPhilippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190221114330.17968-3-marcandre.lureau@redhat.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

hw/display/virtio-gpu.c

@@ -1238,10 +1238,9 @@ static void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
         }
     }
 
-    g->config_size = sizeof(struct virtio_gpu_config);
     g->virtio_config.num_scanouts = cpu_to_le32(g->conf.max_outputs);
     virtio_init(VIRTIO_DEVICE(g), "virtio-gpu", VIRTIO_ID_GPU,
-                g->config_size);
+                sizeof(struct virtio_gpu_config));
 
     g->req_state[0].width = g->conf.xres;
     g->req_state[0].height = g->conf.yres;

include/hw/virtio/virtio-gpu.h

@@ -96,8 +96,6 @@ typedef struct VirtIOGPU {
 
     int enable;
 
-    int config_size;
-
     QTAILQ_HEAD(, virtio_gpu_simple_resource) reslist;
     QTAILQ_HEAD(, virtio_gpu_ctrl_command) cmdq;
     QTAILQ_HEAD(, virtio_gpu_ctrl_command) fenceq;