Always rename an interface to its name specified in config if no Name…

…Policy= is specified

This is for issue systemd#9006

src/udev/net/link-config.c

@@ -295,37 +295,6 @@ static bool mac_is_random(struct udev_device *device) {
         return type == NET_ADDR_RANDOM;
 }
 
-static bool should_rename(struct udev_device *device, bool respect_predictable) {
-        const char *s;
-        unsigned type;
-        int r;
-
-        /* if we can't get the assgin type, assume we should rename */
-        s = udev_device_get_sysattr_value(device, "name_assign_type");
-        if (!s)
-                return true;
-
-        r = safe_atou(s, &type);
-        if (r < 0)
-                return true;
-
-        switch (type) {
-        case NET_NAME_USER:
-        case NET_NAME_RENAMED:
-                /* these were already named by userspace, do not touch again */
-                return false;
-        case NET_NAME_PREDICTABLE:
-                /* the kernel claims to have given a predictable name */
-                if (respect_predictable)
-                        return false;
-                _fallthrough_;
-        case NET_NAME_ENUM:
-        default:
-                /* the name is known to be bad, or of an unknown type */
-                return true;
-        }
-}
-
 static int get_mac(struct udev_device *device, bool want_random,
                    struct ether_addr *mac) {
         int r;
@@ -435,12 +404,8 @@ int link_config_apply(link_config_ctx *ctx, link_config *config,
                 }
         }
 
-        if (should_rename(device, respect_predictable)) {
-                /* if not set by policy, fall back manually set name */
-                if (!new_name)
-                        new_name = config->name;
-        } else
-                new_name = NULL;
+        if (!new_name)
+                new_name = config->name;
 
         switch (config->mac_policy) {
                 case MACPOLICY_PERSISTENT: