Bluetooth: Classic: add bt local name dynamic

add BR/EDR local name dynamic

Signed-off-by: Kai Cheng <chengkai@xiaomi.com>

Author: chengkai15

subsys/bluetooth/host/classic/br.c

@@ -863,6 +863,8 @@ int bt_br_init(void)
 		return err;
 	}
 
+	strncpy(bt_dev.name, CONFIG_BT_DEVICE_NAME, CONFIG_BT_DEVICE_NAME_MAX);
+
 	/* Set Class of device */
 	buf = bt_hci_cmd_alloc(K_FOREVER);
 	if (!buf) {

subsys/bluetooth/host/hci_core.c

@@ -4752,6 +4752,10 @@ int bt_set_name(const char *name)
 		return -ENOMEM;
 	}
 
+	if (len == 0) {
+		return -EINVAL;
+	}
+
 	if (!strcmp(bt_dev.name, name)) {
 		return 0;
 	}
@@ -4766,6 +4770,14 @@ int bt_set_name(const char *name)
 		}
 	}
 
+#if defined(CONFIG_BT_CLASSIC)
+	err = bt_br_write_local_name(bt_dev.name);
+	if (err) {
+		LOG_WRN("Unable to set local name");
+		return err;
+	}
+#endif
+
 	return 0;
 #else
 	return -ENOMEM;