From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754575AbcB2Utl (ORCPT ); Mon, 29 Feb 2016 15:49:41 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:41586 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752697AbcB2Utj (ORCPT ); Mon, 29 Feb 2016 15:49:39 -0500 Date: Mon, 29 Feb 2016 12:49:37 -0800 From: Andrew Morton To: kbuild test robot Cc: Josh Triplett , kbuild-all@01.org, linux-kernel@vger.kernel.org, Linux Memory Management List Subject: Re: include/linux/bug.h:93:12: error: dereferencing pointer to incomplete type Message-Id: <20160229124937.984ac318110f686d96532088@linux-foundation.org> In-Reply-To: <201602290757.VADI7RS5%fengguang.wu@intel.com> References: <201602290757.VADI7RS5%fengguang.wu@intel.com> X-Mailer: Sylpheed 3.4.1 (GTK+ 2.24.23; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 29 Feb 2016 07:33:04 +0800 kbuild test robot wrote: > FYI, the error/warning still remains. > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: fc77dbd34c5c99bce46d40a2491937c3bcbd10af > commit: 5d2acfc7b974bbd3858b4dd3f2cdc6362dd8843a kconfig: make allnoconfig disable options behind EMBEDDED and EXPERT > date: 1 year, 11 months ago > config: mn10300-allnoconfig (attached as .config) > reproduce: > wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout 5d2acfc7b974bbd3858b4dd3f2cdc6362dd8843a > # save the attached .config to linux build tree > make.cross ARCH=mn10300 > From: Andrew Morton Subject: mn10300, c6x: CONFIG_GENERIC_BUG must depend on CONFIG_BUG CONFIG_BUG=n && CONFIG_GENERIC_BUG=y make no sense and things break: In file included from include/linux/page-flags.h:9:0, from kernel/bounds.c:9: include/linux/bug.h:91:47: warning: 'struct bug_entry' declared inside parameter list static inline int is_warning_bug(const struct bug_entry *bug) ^ include/linux/bug.h:91:47: warning: its scope is only this definition or declaration, which is probably not what you want include/linux/bug.h: In function 'is_warning_bug': >> include/linux/bug.h:93:12: error: dereferencing pointer to incomplete type return bug->flags & BUGFLAG_WARNING; Reported-by: kbuild test robot Cc: Josh Triplett Signed-off-by: Andrew Morton --- arch/c6x/Kconfig | 1 + arch/mn10300/Kconfig | 1 + 2 files changed, 2 insertions(+) diff -puN arch/c6x/Kconfig~mn10300-c6x-config_generic_bug-must-depend-on-config_bug arch/c6x/Kconfig --- a/arch/c6x/Kconfig~mn10300-c6x-config_generic_bug-must-depend-on-config_bug +++ a/arch/c6x/Kconfig @@ -36,6 +36,7 @@ config GENERIC_HWEIGHT config GENERIC_BUG def_bool y + depends on BUG config C6X_BIG_KERNEL bool "Build a big kernel" diff -puN arch/mn10300/Kconfig~mn10300-c6x-config_generic_bug-must-depend-on-config_bug arch/mn10300/Kconfig --- a/arch/mn10300/Kconfig~mn10300-c6x-config_generic_bug-must-depend-on-config_bug +++ a/arch/mn10300/Kconfig @@ -53,6 +53,7 @@ config GENERIC_HWEIGHT config GENERIC_BUG def_bool y + depends on BUG config QUICKLIST def_bool y _