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 10251C433EF for ; Wed, 1 Jun 2022 04:43:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349545AbiFAEnu (ORCPT ); Wed, 1 Jun 2022 00:43:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235265AbiFAEnt (ORCPT ); Wed, 1 Jun 2022 00:43:49 -0400 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2EA159C2FA for ; Tue, 31 May 2022 21:43:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1654058628; x=1685594628; h=date:from:to:cc:subject:message-id:mime-version; bh=v83w+pcu1rKKOY5FjT6tu+qdUXMlHJHuYL50RQr/FiM=; b=eGf5acefH+iHdTpq5/py8rblvjBIhzyq5g6urf7G/iCNDHhRuwNMmi1Q 6HCTOtbByBAVeUa8g465dyCM56T3RdGv43P9cIfMD/pLMhq5LPE7u/ntM N2jkhP5z24plBtG6nybaNEM0ZhIx2NHZQE6vQRmhjMZLlw7ByM/mw7KGT hwMrr3iW/7M5CLMF5ErTgUrQe0n4jKNIHuA6Jxwk/o+kf0y6bBUocOPNh zOfNjU+LddnfonmzchajF5imtEvPdha3TTA4BrVKYRDtKj/rsG+K0PTe8 3A9WxPOYBTZAMzsp6tRbd73VJasX6dIf/lJAOZgz/wQyMHTnYI61/sUtK g==; X-IronPort-AV: E=McAfee;i="6400,9594,10364"; a="336126269" X-IronPort-AV: E=Sophos;i="5.91,266,1647327600"; d="scan'208";a="336126269" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2022 21:43:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,266,1647327600"; d="scan'208";a="667244876" Received: from lkp-server01.sh.intel.com (HELO 60dabacc1df6) ([10.239.97.150]) by FMSMGA003.fm.intel.com with ESMTP; 31 May 2022 21:43:45 -0700 Received: from kbuild by 60dabacc1df6 with local (Exim 4.95) (envelope-from ) id 1nwGCu-0003Y2-AR; Wed, 01 Jun 2022 04:43:44 +0000 Date: Wed, 1 Jun 2022 12:42:53 +0800 From: kernel test robot To: Xiaoyao Li Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Isaku Yamahata Subject: [intel-tdx:kvm-upstream-workaround 422/422] arch/x86/kvm/mmu/mmu.c:4546:6: error: call to undeclared function 'get_user_page_fast'; ISO C99 and later do not support implicit function declarations Message-ID: <202206011249.nbPtIS94-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://github.com/intel/tdx.git kvm-upstream-workaround head: 4e487b52e144ed36e4ae202e7103e63679710095 commit: 4e487b52e144ed36e4ae202e7103e63679710095 [422/422] KVM: x86/mmu: Use get_user_page_fast instead of get_user_page_fast_only config: i386-randconfig-a002 (https://download.01.org/0day-ci/archive/20220601/202206011249.nbPtIS94-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c825abd6b0198fb088d9752f556a70705bc99dfd) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel/tdx/commit/4e487b52e144ed36e4ae202e7103e63679710095 git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx kvm-upstream-workaround git checkout 4e487b52e144ed36e4ae202e7103e63679710095 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kvm/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All errors (new ones prefixed by >>): In file included from arch/x86/kvm/mmu/mmu.c:18: In file included from arch/x86/kvm/irq.h:15: In file included from include/linux/kvm_host.h:47: include/linux/memfile_notifier.h:87:57: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int] static int memfile_register_notifier(struct file *file, flags, ^ int >> arch/x86/kvm/mmu/mmu.c:4546:6: error: call to undeclared function 'get_user_page_fast'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] if (get_user_page_fast(hva, FOLL_WRITE, page)) ^ arch/x86/kvm/mmu/mmu.c:4546:6: note: did you mean 'get_user_pages_fast'? include/linux/mm.h:1931:5: note: 'get_user_pages_fast' declared here int get_user_pages_fast(unsigned long start, int nr_pages, ^ 2 errors generated. vim +/get_user_page_fast +4546 arch/x86/kvm/mmu/mmu.c 4527 4528 /* 4529 * Private page can't be release on mmu_notifier without losing page contents. 4530 * The help, callback, from backing store is needed to allow page migration. 4531 * For now, pin the page. 4532 */ 4533 static int kvm_faultin_pfn_private_mapped(struct kvm_vcpu *vcpu, 4534 struct kvm_page_fault *fault) 4535 { 4536 hva_t hva = gfn_to_hva_memslot(fault->slot, fault->gfn); 4537 struct page *page[1]; 4538 4539 fault->map_writable = false; 4540 fault->pfn = KVM_PFN_ERR_FAULT; 4541 if (hva == KVM_HVA_ERR_RO_BAD || hva == KVM_HVA_ERR_BAD) 4542 return RET_PF_INVALID; 4543 4544 /* TDX allows only RWX. Read-only isn't supported. */ 4545 WARN_ON_ONCE(!fault->write); > 4546 if (get_user_page_fast(hva, FOLL_WRITE, page)) 4547 return RET_PF_INVALID; 4548 4549 fault->map_writable = true; 4550 fault->pfn = page_to_pfn(page[0]); 4551 return RET_PF_CONTINUE; 4552 } 4553 -- 0-DAY CI Kernel Test Service https://01.org/lkp