[Qemu-devel] [PATCH 33/37] qdev: QDEV_PROP_FOREACH and QDEV_CLASS_FOREACH

[Igor Mammedov <imammedo@redhat.com>]

helpers to iterate over device static properties to allow to simplify
code a little.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/qdev-properties.h  |  9 +++++++++
 qom/qdev-core.c       | 10 ++++------
 qom/qdev-properties.c | 29 +++++++----------------------
 3 files changed, 20 insertions(+), 28 deletions(-)

diff --git a/hw/qdev-properties.h b/hw/qdev-properties.h
index 41358fa..19b55c0 100644
--- a/hw/qdev-properties.h
+++ b/hw/qdev-properties.h
@@ -135,4 +135,13 @@ void qdev_property_add_static(DeviceState *dev, Property *prop, Error **errp);
 
 const Property *qdev_prop_find(const DeviceClass *dc, const char *name);
 
+#define QDEV_PROP_FOREACH(_var, _class)                                       \
+    for ((_var) = DEVICE_CLASS((_class))->props;                              \
+         (_var) && (_var)->name;                                              \
+         (_var)++)
+
+#define QDEV_CLASS_FOREACH(_var, _class)                                      \
+    for ((_var) = (_class);                                                   \
+         (_var) != DEVICE_CLASS(object_class_by_name(TYPE_DEVICE));           \
+         (_var) = DEVICE_CLASS(object_class_get_parent(OBJECT_CLASS((_var)))))
 #endif
diff --git a/qom/qdev-core.c b/qom/qdev-core.c
index fbb7cb5..a062dbb 100644
--- a/qom/qdev-core.c
+++ b/qom/qdev-core.c
@@ -592,7 +592,7 @@ void qdev_property_add_static(DeviceState *dev, Property *prop,
 static void device_initfn(Object *obj)
 {
     DeviceState *dev = DEVICE(obj);
-    ObjectClass *class;
+    DeviceClass *dc = DEVICE_CLASS(object_get_class(OBJECT(dev)));
     Property *prop;
 
     if (qdev_hotplug) {
@@ -603,14 +603,12 @@ static void device_initfn(Object *obj)
     dev->instance_id_alias = -1;
     dev->state = DEV_STATE_CREATED;
 
-    class = object_get_class(OBJECT(dev));
-    do {
-        for (prop = DEVICE_CLASS(class)->props; prop && prop->name; prop++) {
+    QDEV_CLASS_FOREACH(dc, dc) {
+        QDEV_PROP_FOREACH(prop, dc) {
             qdev_property_add_legacy(dev, prop, NULL);
             qdev_property_add_static(dev, prop, NULL);
         }
-        class = object_class_get_parent(class);
-    } while (class != object_class_by_name(TYPE_DEVICE));
+    }
     qdev_prop_set_globals(dev);
 
     object_property_add_link(OBJECT(dev), "parent_bus", TYPE_BUS,
diff --git a/qom/qdev-properties.c b/qom/qdev-properties.c
index cc37479..3d3eefa 100644
--- a/qom/qdev-properties.c
+++ b/qom/qdev-properties.c
@@ -772,33 +772,18 @@ PropertyInfo qdev_prop_pci_host_devaddr = {
 
 /* --- public helpers --- */
 
-static Property *qdev_prop_walk(Property *props, const char *name)
-{
-    if (!props)
-        return NULL;
-    while (props->name) {
-        if (strcmp(props->name, name) == 0)
-            return props;
-        props++;
-    }
-    return NULL;
-}
-
 const Property *qdev_prop_find(const DeviceClass *dc, const char *name)
 {
-    ObjectClass *class;
-    Property *prop;
+    const Property *prop;
 
     /* device properties */
-    class = OBJECT_CLASS(dc);
-    do {
-        prop = qdev_prop_walk(DEVICE_CLASS(class)->props, name);
-        if (prop) {
-            return prop;
+    QDEV_CLASS_FOREACH(dc, dc) {
+        QDEV_PROP_FOREACH(prop, dc) {
+            if (strcmp(prop->name, name) == 0) {
+                return prop;
+            }
         }
-        class = object_class_get_parent(class);
-    } while (class != object_class_by_name(TYPE_DEVICE));
-
+    }
     return NULL;
 }
 
-- 
1.7.11.7