memdev: remove "id" property

The "id" property is unnecessary and can be replaced simply with
object_get_canonical_path_component.  This patch mostly undoes commit
e1ff3c67e8 ("monitor: fix qmp/hmp query-memdev not reporting IDs of
memory backends", 2017-01-12).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 0 insertions, 26 deletions

diff --git a/backends/hostmem.c b/backends/hostmem.c
index 6a0c474..3627e61 100644
--- a/backends/hostmem.c
+++ b/backends/hostmem.c
@@ -369,24 +369,6 @@ host_memory_backend_can_be_deleted(UserCreatable *uc)
     }
 }
 
-static char *get_id(Object *o, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(o);
-
-    return g_strdup(backend->id);
-}
-
-static void set_id(Object *o, const char *str, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(o);
-
-    if (backend->id) {
-        error_setg(errp, "cannot change property value");
-        return;
-    }
-    backend->id = g_strdup(str);
-}
-
 static bool host_memory_backend_get_share(Object *o, Error **errp)
 {
     HostMemoryBackend *backend = MEMORY_BACKEND(o);
@@ -434,18 +416,11 @@ host_memory_backend_class_init(ObjectClass *oc, void *data)
         &HostMemPolicy_lookup,
         host_memory_backend_get_policy,
         host_memory_backend_set_policy, &error_abort);
-    object_class_property_add_str(oc, "id", get_id, set_id, &error_abort);
     object_class_property_add_bool(oc, "share",
         host_memory_backend_get_share, host_memory_backend_set_share,
         &error_abort);
 }
 
-static void host_memory_backend_finalize(Object *o)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(o);
-    g_free(backend->id);
-}
-
 static const TypeInfo host_memory_backend_info = {
     .name = TYPE_MEMORY_BACKEND,
     .parent = TYPE_OBJECT,
@@ -454,7 +429,6 @@ static const TypeInfo host_memory_backend_info = {
     .class_init = host_memory_backend_class_init,
     .instance_size = sizeof(HostMemoryBackend),
     .instance_init = host_memory_backend_init,
-    .instance_finalize = host_memory_backend_finalize,
     .interfaces = (InterfaceInfo[]) {
         { TYPE_USER_CREATABLE },
         { }