For target/openrisc, the CPU type name is always the combination of
the CPU model name and suffix. The CPU model names have been correctly
shown in openrisc_cpu_list_entry().

Use generic helper cpu_model_from_type() to show the CPU model names
in openrisc_cpu_list_entry(), and @name is renamed to @model since it
points to the CPU model name instead of the CPU type name. Besides,
openrisc_cpu_class_by_name() is simplified since the condtion of
'@oc == NULL' has been covered by object_class_dynamic_cast().

Signed-off-by: Gavin Shan <gshan@redhat.com>
---
 target/openrisc/cpu.c | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c
index 61d748cfdc..2284c0187b 100644
--- a/target/openrisc/cpu.c
+++ b/target/openrisc/cpu.c
@@ -168,11 +168,12 @@ static ObjectClass *openrisc_cpu_class_by_name(const char *cpu_model)
     typename = g_strdup_printf(OPENRISC_CPU_TYPE_NAME("%s"), cpu_model);
     oc = object_class_by_name(typename);
     g_free(typename);
-    if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_OPENRISC_CPU) ||
-                       object_class_is_abstract(oc))) {
-        return NULL;
+    if (object_class_dynamic_cast(oc, TYPE_OPENRISC_CPU) &&
+        !object_class_is_abstract(oc)) {
+        return oc;
     }
-    return oc;
+
+    return NULL;
 }
 
 static void or1200_initfn(Object *obj)
@@ -280,15 +281,11 @@ static gint openrisc_cpu_list_compare(gconstpointer a, gconstpointer b)
 
 static void openrisc_cpu_list_entry(gpointer data, gpointer user_data)
 {
-    ObjectClass *oc = data;
-    const char *typename;
-    char *name;
-
-    typename = object_class_get_name(oc);
-    name = g_strndup(typename,
-                     strlen(typename) - strlen("-" TYPE_OPENRISC_CPU));
-    qemu_printf("  %s\n", name);
-    g_free(name);
+    const char *typename = object_class_get_name(OBJECT_CLASS(data));
+    char *model = cpu_model_from_type(typename);
+
+    qemu_printf("  %s\n", model);
+    g_free(model);
 }
 
 void cpu_openrisc_list(void)
-- 
2.41.0