[PATCH v3 28/30] qapi virtio: Elide redundant has_FOO in generated C

[Markus Armbruster <armbru@redhat.com>]

The has_FOO for pointer-valued FOO are redundant, except for arrays.
They are also a nuisance to work with.  Recent commit "qapi: Start to
elide redundant has_FOO in generated C" provided the means to elide
them step by step.  This is the step for qapi/virtio.json.

Said commit explains the transformation in more detail.  The invariant
violations mentioned there do not occur here.

Cc: Laurent Vivier <lvivier@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/virtio/virtio.c     | 1 -
 monitor/hmp-cmds.c     | 4 ++--
 scripts/qapi/schema.py | 1 -
 3 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 808446b4c9..883bc7064d 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -4664,7 +4664,6 @@ VirtioStatus *qmp_x_query_virtio_status(const char *path, Error **errp)
     status->disable_legacy_check = vdev->disable_legacy_check;
     status->bus_name = g_strdup(vdev->bus_name);
     status->use_guest_notifier_mask = vdev->use_guest_notifier_mask;
-    status->has_vhost_dev = vdev->vhost_started;
 
     if (vdev->vhost_started) {
         VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index 263b7762ab..b847b26041 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -2549,7 +2549,7 @@ void hmp_virtio_status(Monitor *mon, const QDict *qdict)
 
     monitor_printf(mon, "%s:\n", path);
     monitor_printf(mon, "  device_name:             %s %s\n",
-                   s->name, s->has_vhost_dev ? "(vhost)" : "");
+                   s->name, s->vhost_dev ? "(vhost)" : "");
     monitor_printf(mon, "  device_id:               %d\n", s->device_id);
     monitor_printf(mon, "  vhost_started:           %s\n",
                    s->vhost_started ? "true" : "false");
@@ -2585,7 +2585,7 @@ void hmp_virtio_status(Monitor *mon, const QDict *qdict)
     monitor_printf(mon, "  Backend features:\n");
     hmp_virtio_dump_features(mon, s->backend_features);
 
-    if (s->has_vhost_dev) {
+    if (s->vhost_dev) {
         monitor_printf(mon, "  VHost:\n");
         monitor_printf(mon, "    nvqs:           %d\n",
                        s->vhost_dev->nvqs);
diff --git a/scripts/qapi/schema.py b/scripts/qapi/schema.py
index fd18f8249b..b2df148e01 100644
--- a/scripts/qapi/schema.py
+++ b/scripts/qapi/schema.py
@@ -759,7 +759,6 @@ def need_has(self):
         assert self.type
         # Temporary hack to support dropping the has_FOO in reviewable chunks
         opt_out = [
-            'qapi/virtio.json',
             'qga/qapi-schema.json']
         if self.info and any(self.info.fname.endswith(mod)
                              for mod in opt_out):
-- 
2.37.3