Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756432Ab3CQOk7 (ORCPT ); Sun, 17 Mar 2013 10:40:59 -0400 Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:43877 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756360Ab3CQOk6 (ORCPT ); Sun, 17 Mar 2013 10:40:58 -0400 Date: Sun, 17 Mar 2013 14:40:30 +0000 From: Will Deacon To: Jonathan Austin Cc: Chen Gang , Russell King - ARM Linux , Lorenzo Pieralisi , Santosh Shilimkar , "nico@linaro.org" , Catalin Marinas , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Subject: Re: [Suggestion] Latest randconfig build errors for CONFIG_MMU=no Message-ID: <20130317144030.GF19071@mudshark.cambridge.arm.com> References: <514147A0.2060002@asianux.com> <5141CFE4.2030909@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <5141CFE4.2030909@arm.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1729 Lines: 38 On Thu, Mar 14, 2013 at 01:25:56PM +0000, Jonathan Austin wrote: > On 14/03/13 03:44, Chen Gang wrote: > > Hello Maintainers: > > > > when use randconfig: > > make V=1 EXTRA_CFLAGS=-W ARCH=arm randconfig > > (and "grep CONFIG_MMU .config" outputs "# CONFIG_MMU is not set") > > > > the error information: > > arch/arm/kernel/suspend.c: 在函数‘cpu_suspend’中: > > arch/arm/kernel/suspend.c:56:32: 错误：提领指向不完全类型的指针 > > arch/arm/kernel/suspend.c:70:3: 错误：隐式声明函数‘cpu_switch_mm’ [-Werror=implicit-function-declaration] > > arch/arm/kernel/suspend.c:71:3: 错误：隐式声明函数‘local_flush_bp_all’ [-Werror=implicit-function-declaration] > > arch/arm/kernel/suspend.c:72:3: 错误：隐式声明函数‘local_flush_tlb_all’ [-Werror=implicit-function-declaration] > > > > I want to be sure whether we can bear it ? > > > > You're right that at the moment that suspend code is broken for NOMMU. > > However, Will Deacon has a patch to fix it in his nommu branch on > kernel.org: > > https://git.kernel.org/cgit/linux/kernel/git/will/linux.git/commit/?h=nommu > > I'll let Will comment on how/when he might look at proposing that code > to be merged. I can probably bring that up to speed with -rc2 if people are interested. The tricky part is testing -- I used a software model that had a magic control block for killing off CPUs when I wrote this originally. Will -- 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/