From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 52E17C433EF for ; Wed, 22 Dec 2021 04:16:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242310AbhLVEQh (ORCPT ); Tue, 21 Dec 2021 23:16:37 -0500 Received: from mga09.intel.com ([134.134.136.24]:4456 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242205AbhLVEQe (ORCPT ); Tue, 21 Dec 2021 23:16:34 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1640146594; x=1671682594; h=date:from:to:cc:subject:message-id:mime-version; bh=yZ8dxGoPrJZXz/i00vV+0R8ve859BTlAoB4X2DkskOs=; b=b3s2TTwetLWnp0IqgL1VhyjKqf49A3Ui5qCP95nh1Hzj2GhwPkqMeyYc U/nBv/bWUYPq5xcpgyG8lh2fYGGyvwplUGcjaaH08ey4Tenz8Gj5xyIk/ 1zVTxbJxWyT1zDZUTye2sgEi1rw6hTdbMpL9TJNAXVCjH04ZswXCULqO2 UUBUiSzTas9TrWD0b6C3D7IufyWkB9ZgA+VPJN49zh0eWFgF/2i8kofbb skw7pDJNsU8BDn9a9O1+wJnKs/sNANrJu0v2mk1hKacChGgLeK9n773Lw ibiMdFHry01A4Enr6KV9s6nJ7FJ8G5V4zOsDi9zbgUnCwZ6Xx+2t4C79z g==; X-IronPort-AV: E=McAfee;i="6200,9189,10205"; a="240348053" X-IronPort-AV: E=Sophos;i="5.88,225,1635231600"; d="scan'208";a="240348053" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Dec 2021 20:16:34 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,225,1635231600"; d="scan'208";a="684886374" Received: from lkp-server01.sh.intel.com (HELO e357b3ef1427) ([10.239.97.150]) by orsmga005.jf.intel.com with ESMTP; 21 Dec 2021 20:16:32 -0800 Received: from kbuild by e357b3ef1427 with local (Exim 4.92) (envelope-from ) id 1mzt3I-00000o-8h; Wed, 22 Dec 2021 04:16:32 +0000 Date: Wed, 22 Dec 2021 12:12:00 +0800 From: kernel test robot To: Christoph Hellwig Cc: kbuild-all@lists.01.org, user-mode-linux-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Richard Weinberger Subject: [rw-uml:linux-next 28/29] arch/x86/kvm/mmu/spte.c:85:6: error: implicit declaration of function 'pat_enabled'; did you mean 'kasan_enabled'? Message-ID: <202112221002.dpWf8YCs-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/rw/uml.git linux-next head: 5d0f822da145a87c38bf9162bebdce865e6ad359 commit: 59a49f02bbc8b44ed1a8b9603b1a6aa620cca3b4 [28/29] x86/mtrr: remove the mtrr_bp_init stub config: x86_64-randconfig-a001-20211220 (https://download.01.org/0day-ci/archive/20211222/202112221002.dpWf8YCs-lkp@intel.com/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/rw/uml.git/commit/?id=59a49f02bbc8b44ed1a8b9603b1a6aa620cca3b4 git remote add rw-uml https://git.kernel.org/pub/scm/linux/kernel/git/rw/uml.git git fetch --no-tags rw-uml linux-next git checkout 59a49f02bbc8b44ed1a8b9603b1a6aa620cca3b4 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): arch/x86/kvm/mmu/spte.c: In function 'kvm_is_mmio_pfn': >> arch/x86/kvm/mmu/spte.c:85:6: error: implicit declaration of function 'pat_enabled'; did you mean 'kasan_enabled'? [-Werror=implicit-function-declaration] 85 | (!pat_enabled() || pat_pfn_immune_to_uc_mtrr(pfn)); | ^~~~~~~~~~~ | kasan_enabled >> arch/x86/kvm/mmu/spte.c:85:23: error: implicit declaration of function 'pat_pfn_immune_to_uc_mtrr' [-Werror=implicit-function-declaration] 85 | (!pat_enabled() || pat_pfn_immune_to_uc_mtrr(pfn)); | ^~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +85 arch/x86/kvm/mmu/spte.c 5a9624affe7c74 Paolo Bonzini 2020-10-16 70 5a9624affe7c74 Paolo Bonzini 2020-10-16 71 static bool kvm_is_mmio_pfn(kvm_pfn_t pfn) 5a9624affe7c74 Paolo Bonzini 2020-10-16 72 { 5a9624affe7c74 Paolo Bonzini 2020-10-16 73 if (pfn_valid(pfn)) 5a9624affe7c74 Paolo Bonzini 2020-10-16 74 return !is_zero_pfn(pfn) && PageReserved(pfn_to_page(pfn)) && 5a9624affe7c74 Paolo Bonzini 2020-10-16 75 /* 5a9624affe7c74 Paolo Bonzini 2020-10-16 76 * Some reserved pages, such as those from NVDIMM 5a9624affe7c74 Paolo Bonzini 2020-10-16 77 * DAX devices, are not for MMIO, and can be mapped 5a9624affe7c74 Paolo Bonzini 2020-10-16 78 * with cached memory type for better performance. 5a9624affe7c74 Paolo Bonzini 2020-10-16 79 * However, the above check misconceives those pages 5a9624affe7c74 Paolo Bonzini 2020-10-16 80 * as MMIO, and results in KVM mapping them with UC 5a9624affe7c74 Paolo Bonzini 2020-10-16 81 * memory type, which would hurt the performance. 5a9624affe7c74 Paolo Bonzini 2020-10-16 82 * Therefore, we check the host memory type in addition 5a9624affe7c74 Paolo Bonzini 2020-10-16 83 * and only treat UC/UC-/WC pages as MMIO. 5a9624affe7c74 Paolo Bonzini 2020-10-16 84 */ 5a9624affe7c74 Paolo Bonzini 2020-10-16 @85 (!pat_enabled() || pat_pfn_immune_to_uc_mtrr(pfn)); 5a9624affe7c74 Paolo Bonzini 2020-10-16 86 5a9624affe7c74 Paolo Bonzini 2020-10-16 87 return !e820__mapped_raw_any(pfn_to_hpa(pfn), 5a9624affe7c74 Paolo Bonzini 2020-10-16 88 pfn_to_hpa(pfn + 1) - 1, 5a9624affe7c74 Paolo Bonzini 2020-10-16 89 E820_TYPE_RAM); 5a9624affe7c74 Paolo Bonzini 2020-10-16 90 } 5a9624affe7c74 Paolo Bonzini 2020-10-16 91 :::::: The code at line 85 was first introduced by commit :::::: 5a9624affe7c7498fb395879d9bb613628e89e60 KVM: mmu: extract spte.h and spte.c :::::: TO: Paolo Bonzini :::::: CC: Paolo Bonzini --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org