From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758477AbZASCw6 (ORCPT ); Sun, 18 Jan 2009 21:52:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757177AbZASCws (ORCPT ); Sun, 18 Jan 2009 21:52:48 -0500 Received: from mga02.intel.com ([134.134.136.20]:37426 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757113AbZASCwr convert rfc822-to-8bit (ORCPT ); Sun, 18 Jan 2009 21:52:47 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.37,285,1231142400"; d="scan'208";a="379516129" From: "Gao, Yunpeng" To: "linux-ia64@vger.kernel.org" CC: "linux-kernel@vger.kernel.org" Date: Mon, 19 Jan 2009 10:54:02 +0800 Subject: Thread-Index: Acl54S8WAR/0PuuAQAyOqrCYBnRpxA== Message-ID: <38D9F46DFF92C54980D2F2C1E8EE31301FC5E7FB@pdsmsx503.ccr.corp.intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, I have to use 64bit variable in my 2.6.27 kernel NAND driver as below: --------------------------------------------------------------------------- u64 NAND_capacity; unsigned int block_num, block_size; ... block_num = NAND_capacity / block_size; --------------------------------------------------------------------------- but it failed when compiling and reports 'undefined reference to `__udivdi3'. Does any idea about this? I need to include some special head file or change something in Kconfig? BTW, the environment is Fedora Core 9, gcc 4.3.0. Thanks a lot. Rgds, Yunpeng Gao