[PATCH v3 14/32] target/rx: Use generic helper to show CPU model names

[Gavin Shan]

For target/rx, the CPU type name can be: (1) the combination of the
CPU model name and suffix; (2) same to the CPU model name. The CPU
type names have been shown in rx_cpu_list_entry().

Use generic helper cpu_model_from_type() to show the CPU model names
in rx_cpu_list_entry(). Besides, rx_cpu_class_by_name() is improved
by merging the condition of '@oc == NULL' to object_class_dynamic_cast().

Signed-off-by: Gavin Shan <gs...@redhat.com>
---
 target/rx/cpu.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/target/rx/cpu.c b/target/rx/cpu.c
index 157e57da0f..ff0ced1f3d 100644
--- a/target/rx/cpu.c
+++ b/target/rx/cpu.c
@@ -91,9 +91,11 @@ static void rx_cpu_reset_hold(Object *obj)
 
 static void rx_cpu_list_entry(gpointer data, gpointer user_data)
 {
-    ObjectClass *oc = data;
+    const char *typename = object_class_get_name(OBJECT_CLASS(data));
+    char *model = cpu_model_from_type(typename);
 
-    qemu_printf("  %s\n", object_class_get_name(oc));
+    qemu_printf("  %s\n", model);
+    g_free(model);
 }
 
 void rx_cpu_list(void)
@@ -111,18 +113,20 @@ static ObjectClass *rx_cpu_class_by_name(const char 
*cpu_model)
     char *typename;
 
     oc = object_class_by_name(cpu_model);
-    if (oc != NULL && object_class_dynamic_cast(oc, TYPE_RX_CPU) != NULL &&
+    if (object_class_dynamic_cast(oc, TYPE_RX_CPU) &&
         !object_class_is_abstract(oc)) {
         return oc;
     }
+
     typename = g_strdup_printf(RX_CPU_TYPE_NAME("%s"), cpu_model);
     oc = object_class_by_name(typename);
     g_free(typename);
-    if (oc != NULL && object_class_is_abstract(oc)) {
-        oc = NULL;
+    if (object_class_dynamic_cast(oc, TYPE_RX_CPU) &&
+        !object_class_is_abstract(oc)) {
+        return oc;
     }
 
-    return oc;
+    return NULL;
 }
 
 static void rx_cpu_realize(DeviceState *dev, Error **errp)
-- 
2.41.0