From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f46.google.com (mail-pa0-f46.google.com [209.85.220.46]) by kanga.kvack.org (Postfix) with ESMTP id 0D0FF6B0254 for ; Wed, 10 Feb 2016 14:56:12 -0500 (EST) Received: by mail-pa0-f46.google.com with SMTP id ho8so16757346pac.2 for ; Wed, 10 Feb 2016 11:56:12 -0800 (PST) Received: from mail.zytor.com (terminus.zytor.com. [2001:1868:205::10]) by mx.google.com with ESMTPS id ut10si6970115pab.139.2016.02.10.11.56.11 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 10 Feb 2016 11:56:11 -0800 (PST) Subject: Re: undefined reference to `efi_call' References: <201602101626.jtqGm2RN%fengguang.wu@intel.com> <20160210115234.234e2bab71db2028c98b58ad@linux-foundation.org> From: "H. Peter Anvin" Message-ID: <56BB95C3.8010003@zytor.com> Date: Wed, 10 Feb 2016 11:55:47 -0800 MIME-Version: 1.0 In-Reply-To: <20160210115234.234e2bab71db2028c98b58ad@linux-foundation.org> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton , kbuild test robot Cc: Johannes Weiner , kbuild-all@01.org, linux-kernel@vger.kernel.org, Arnd Bergmann , Linux Memory Management List , Matt Fleming , Ingo Molnar , Thomas Gleixner On 02/10/16 11:52, Andrew Morton wrote: > On Wed, 10 Feb 2016 16:48:28 +0800 kbuild test robot wrote: > >> Hi Johannes, >> >> It's probably a bug fix that unveils the link errors. >> >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> head: 2178cbc68f3602dc0b5949b9be2c8383ad3d93ef >> commit: 489c2a20a414351fe0813a727c34600c0f7292ae mm: memcontrol: introduce CONFIG_MEMCG_LEGACY_KMEM >> date: 3 weeks ago >> config: x86_64-randconfig-s3-02101458 (attached as .config) >> reproduce: >> git checkout 489c2a20a414351fe0813a727c34600c0f7292ae >> # save the attached .config to linux build tree >> make ARCH=x86_64 >> >> All errors (new ones prefixed by >>): >> >> arch/x86/built-in.o: In function `uv_bios_call': >>>> (.text+0xeba00): undefined reference to `efi_call' > > I'd be surprised if the above patch caused this. > > CONFIG_EFI=n > > CONFIG_X86_UV does not depend on EFI. > X86_UV ought to depend on EFI. -hpa -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org