From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754331Ab2KGXbz (ORCPT ); Wed, 7 Nov 2012 18:31:55 -0500 Received: from mail-da0-f46.google.com ([209.85.210.46]:58023 "EHLO mail-da0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753792Ab2KGXbx (ORCPT ); Wed, 7 Nov 2012 18:31:53 -0500 Message-ID: <509AEF68.5060004@zankel.net> Date: Wed, 07 Nov 2012 15:31:52 -0800 From: Chris Zankel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121011 Thunderbird/16.0.1 MIME-Version: 1.0 To: Fengguang Wu CC: "Kasatkin, Dmitry" , Sam Ravnborg , Mimi Zohar , linux-security-module@vger.kernel.org, linux-kbuild , LKML Subject: Re: [digsig:dmi 20/35] WARNING: security/integrity/built-in.o(.text+0x1d8): Section mismatch in reference from the function integrity_inode_free() to the variable .init.data:ima_use_tcb References: <50913fa5.uJnC6BQdkN/Xw1h0%fengguang.wu@intel.com> <20121106114108.GB19965@localhost> <20121106115716.GA21889@localhost> In-Reply-To: <20121106115716.GA21889@localhost> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Looking a bit into it, I think modpost is broken. I'm working on a fix. Cheers! -Chris On 11/06/2012 03:57 AM, Fengguang Wu wrote: > Perhaps we should CC more people.. > > On Tue, Nov 06, 2012 at 01:47:18PM +0200, Kasatkin, Dmitry wrote: >> On Tue, Nov 6, 2012 at 1:41 PM, Fengguang Wu wrote: >>> On Tue, Nov 06, 2012 at 01:16:16PM +0200, Kasatkin, Dmitry wrote: >>>> Hi, >>>> >>>> I do not see that integrity_inode_free() uses ima_use_tcb. >>>> >>>> I think it is false positive. >>> Interestingly, when trying to reproduce the problem, I got this >>> slightly different message: > Now after make clean, I get both the warnings on ima_use_tcb and > chosen_lsm. > >>> WARNING: security/built-in.o(.text+0x2b68c): Section mismatch in reference from the function integrity_inode_free() to the variable .init.d >>> ata:chosen_lsm >>> The function integrity_inode_free() references >>> the variable __initdata chosen_lsm. >>> This is often because integrity_inode_free lacks a __initdata >>> annotation or the annotation of chosen_lsm is wrong. >>> >> Hello, >> >> chosen_lsm has nothing to do with integrity subsystem, though >> integrity_inode_free() is called from security_inode_free(), >> which is part of security subsystem files which uses chosen_lsm... >> >> That is very strange. >> >> - Dmitry >> >> >>> Thanks, >>> Fengguang >>> >>>> On Wed, Oct 31, 2012 at 5:11 PM, kbuild test robot >>>> wrote: >>>>> tree: git://git.kernel.org/pub/scm/linux/kernel/git/kasatkin/linux-digsig.git dmi >>>>> head: 2309bb884f94d84ecb1a6a176d3e8199de7d6dad >>>>> commit: 13ba29dcf6f0021a14a04f6f3a4560a399c02b34 [20/35] integrity: create and inititialize a keyring with builtin public key >>>>> config: make ARCH=xtensa allyesconfig >>>>> >>>>> All warnings: >>>>> >>>>> WARNING: security/integrity/built-in.o(.text+0x1d8): Section mismatch in reference from the function integrity_inode_free() to the variable .init.data:ima_use_tcb >>>>> The function integrity_inode_free() references >>>>> the variable __initdata ima_use_tcb. >>>>> This is often because integrity_inode_free lacks a __initdata >>>>> annotation or the annotation of ima_use_tcb is wrong. >>>>> >>>>> --- >>>>> 0-DAY kernel build testing backend Open Source Technology Center >>>>> Fengguang Wu, Yuanhan Liu Intel Corporation > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/