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 7C944C433EF for ; Wed, 29 Jun 2022 15:15:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232126AbiF2PPI (ORCPT ); Wed, 29 Jun 2022 11:15:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54074 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230496AbiF2PPG (ORCPT ); Wed, 29 Jun 2022 11:15:06 -0400 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4389D13E for ; Wed, 29 Jun 2022 08:15:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1656515705; x=1688051705; h=date:from:to:cc:subject:message-id:mime-version; bh=UK+Pk1CTEhwna1MRInrlEyhGNhzeJwTDQKbLxawS+PE=; b=PS7dI2BsnclTkF5zkAEJW+HnLDQI6YTTZvli3jtmtgPRNUQG5KYuqmjT SmDeDFvwl0l2McHL+Cpbzi50HVAdD/+/TVUd27csQLLqLW2H5i+gWSoCb fXubvuqRN8Vi4hUKCC/nGNiFvRl8CR2odJni4OWpxxMD8jLDPSOQtQ9dI 9pInQXeQ+ooGHU4TpHvzNpWRNq9XNhHUXpR3f65DUMg5EfO00nJAKEjtX pmko5C6xfntYNTJnfEfdBJetXnhwPYAPq0X8x/hK3vr3gVMs2qlZasTnA XGC0jpG/ZnU0k6YtAhMl0lrpifgfk/u2OEWs/afo/EAzeffGUbQ0oGEgs w==; X-IronPort-AV: E=McAfee;i="6400,9594,10392"; a="282791363" X-IronPort-AV: E=Sophos;i="5.92,231,1650956400"; d="scan'208";a="282791363" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jun 2022 08:15:04 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.92,231,1650956400"; d="scan'208";a="917636890" Received: from lkp-server01.sh.intel.com (HELO 68b931ab7ac1) ([10.239.97.150]) by fmsmga005.fm.intel.com with ESMTP; 29 Jun 2022 08:15:03 -0700 Received: from kbuild by 68b931ab7ac1 with local (Exim 4.95) (envelope-from ) id 1o6ZPC-000BK6-PY; Wed, 29 Jun 2022 15:15:02 +0000 Date: Wed, 29 Jun 2022 23:14:05 +0800 From: kernel test robot To: Isaku Yamahata Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: [intel-tdx:kvm-upstream-workaround 434/442] arch/x86/kvm/mmu/mmu.c:981:21: error: variable 'type' set but not used Message-ID: <202206292314.Byr20MEd-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: 8af973ebaf30642129fc1ca63f155a469f9615ed commit: 2cf2a8208ae24b96f074aac76f0feef63489137d [434/442] KVM: x86/mmu: update lpage_info on changing page_type config: i386-randconfig-a002 (https://download.01.org/0day-ci/archive/20220629/202206292314.Byr20MEd-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a774ba7f60d1fef403b5507b1b1a7475d3684d71) 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/2cf2a8208ae24b96f074aac76f0feef63489137d git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx kvm-upstream-workaround git checkout 2cf2a8208ae24b96f074aac76f0feef63489137d # 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 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:981:21: error: variable 'type' set but not used [-Werror,-Wunused-but-set-variable] enum kvm_page_type type; ^ 2 errors generated. vim +/type +981 arch/x86/kvm/mmu/mmu.c aa7e272e931503d Xiaoyao Li 2021-08-31 976 dbe93493d574730 Xiaoyao Li 2022-05-25 977 static void split_page_type(gfn_t gfn, struct kvm_memory_slot *slot, dbe93493d574730 Xiaoyao Li 2022-05-25 978 enum pg_level level) aa7e272e931503d Xiaoyao Li 2021-08-31 979 { aa7e272e931503d Xiaoyao Li 2021-08-31 980 struct kvm_page_attr *page_attr = page_attr_slot(gfn, slot, level); aa7e272e931503d Xiaoyao Li 2021-08-31 @981 enum kvm_page_type type; aa7e272e931503d Xiaoyao Li 2021-08-31 982 gfn_t base_gfn; aa7e272e931503d Xiaoyao Li 2021-08-31 983 aa7e272e931503d Xiaoyao Li 2021-08-31 984 if (WARN_ON_ONCE(!kvm_page_type_valid(page_attr) || level <= PG_LEVEL_4K)) aa7e272e931503d Xiaoyao Li 2021-08-31 985 return; aa7e272e931503d Xiaoyao Li 2021-08-31 986 aa7e272e931503d Xiaoyao Li 2021-08-31 987 base_gfn = gfn & ~(KVM_PAGES_PER_HPAGE(level) - 1); aa7e272e931503d Xiaoyao Li 2021-08-31 988 type = page_attr->type; dbe93493d574730 Xiaoyao Li 2022-05-25 989 aa7e272e931503d Xiaoyao Li 2021-08-31 990 /* aa7e272e931503d Xiaoyao Li 2021-08-31 991 * Set the type to KVM_PAGE_TYPE_MIXED in advance since when a large aa7e272e931503d Xiaoyao Li 2021-08-31 992 * page needs to be split means one of the 4K page of it needs to be aa7e272e931503d Xiaoyao Li 2021-08-31 993 * changed to oppsite type aa7e272e931503d Xiaoyao Li 2021-08-31 994 */ 2cf2a8208ae24b9 Isaku Yamahata 2022-06-02 995 page_type_set(page_attr, KVM_PAGE_TYPE_MIXED, base_gfn, slot, level); aa7e272e931503d Xiaoyao Li 2021-08-31 996 } aa7e272e931503d Xiaoyao Li 2021-08-31 997 :::::: The code at line 981 was first introduced by commit :::::: aa7e272e931503dda524bd4f15d098a0d4ac28d7 KVM: MMU: Update page_attr->type when guest converts the page :::::: TO: Xiaoyao Li :::::: CC: Isaku Yamahata -- 0-DAY CI Kernel Test Service https://01.org/lkp