From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752313Ab3JEPrM (ORCPT ); Sat, 5 Oct 2013 11:47:12 -0400 Received: from intranet.asianux.com ([58.214.24.6]:39088 "EHLO intranet.asianux.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751975Ab3JEPrL (ORCPT ); Sat, 5 Oct 2013 11:47:11 -0400 X-Spam-Score: -100.9 Message-ID: <52503441.2030009@asianux.com> Date: Sat, 05 Oct 2013 23:46:09 +0800 From: Chen Gang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2 MIME-Version: 1.0 To: Joe Perches CC: Al Viro , Thomas Gleixner , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] kernel/irq/proc.c: set MAX_NAMELEN 11 instead of 10 which express the maximize size of "%d" or "%u". References: <52502E14.5040507@asianux.com> <1380987671.2081.122.camel@joe-AO722> In-Reply-To: <1380987671.2081.122.camel@joe-AO722> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/05/2013 11:41 PM, Joe Perches wrote: > On Sat, 2013-10-05 at 23:19 +0800, Chen Gang wrote: >> Theoretically, the maximize size of "%d" or "%u" is 11 (10 + '\0'), so >> need set MAX_NAMELEN 11 instead of 10. > > %d can be negative. > > > > Oh, really, it is incorrect. Al Viro succeeds once. :-( And I should send patch v2 for it. Thanks. -- Chen Gang