[Qemu-devel] [PATCH v2 4/6] Warn on obsolete and deprecated devices.

[Gerd Hoffmann <kraxel@redhat.com>]

Print a warning for deprecated and obsolete devices.
Also add support state to device listing.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/core/qdev.c | 8 +++++++-
 qdev-monitor.c | 9 +++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index 6b3cc55b27..6205522c3e 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -133,11 +133,17 @@ DeviceState *qdev_create(BusState *bus, const char *name)
 
 DeviceState *qdev_try_create(BusState *bus, const char *type)
 {
+    ObjectClass *oc;
     DeviceState *dev;
 
-    if (object_class_by_name(type) == NULL) {
+    oc = object_class_by_name(type);
+    if (oc == NULL) {
         return NULL;
     }
+    if (qemu_is_deprecated(oc) ||
+        qemu_is_obsolete(oc)) {
+        qemu_warn_support_state("device", type, oc);
+    }
     dev = DEVICE(object_new(type));
     if (!dev) {
         return NULL;
diff --git a/qdev-monitor.c b/qdev-monitor.c
index 802c18a74e..80370372f9 100644
--- a/qdev-monitor.c
+++ b/qdev-monitor.c
@@ -115,6 +115,8 @@ static void out_printf(const char *fmt, ...)
 
 static void qdev_print_devinfo(DeviceClass *dc)
 {
+    ObjectClass *oc = OBJECT_CLASS(dc);
+
     out_printf("name \"%s\"", object_class_get_name(OBJECT_CLASS(dc)));
     if (dc->bus_type) {
         out_printf(", bus %s", dc->bus_type);
@@ -128,6 +130,9 @@ static void qdev_print_devinfo(DeviceClass *dc)
     if (!dc->user_creatable) {
         out_printf(", no-user");
     }
+    if (oc->supported.state != SUPPORT_STATE_UNSPECIFIED) {
+        out_printf(", %s", SupportState_str(oc->supported.state));
+    }
     out_printf("\n");
 }
 
@@ -579,6 +584,10 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **errp)
     if (!dc) {
         return NULL;
     }
+    if (qemu_is_deprecated(OBJECT_CLASS(dc)) ||
+        qemu_is_obsolete(OBJECT_CLASS(dc))) {
+        qemu_warn_support_state("device", driver, OBJECT_CLASS(dc));
+    }
 
     /* find bus */
     path = qemu_opt_get(opts, "bus");
-- 
2.9.3