From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 681C77B; Fri, 7 Apr 2023 00:21:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1680826895; x=1712362895; h=date:from:to:cc:subject:message-id:mime-version; bh=nS3Gh8ZxD4GHgrogqXDXTvL72tTzLa3KPHQbn8WpZhI=; b=kFze9xmlqY2Q3EQxYGvTflgftIlPPAmatv3RjBd6V1/sA0ZzN05x2LHZ 3VMzf3o9q67fx6mGhGpT44xCLBMFlJHcQJ/R0k5Lx7aGnGJW/3Rd81EX1 bVFkkddn6kqHvzuZUchh8Bys6t8hLxLpbhAqkzjvLQ/WlvBED9LLpZf/e g+3nFkS+bc6V3SHqkNy5wk6h6WKXpQuNqZQ23iyJfFaRe/iPkXykNhMA5 MfKLGZHcjxmhVxMAW7ln22WRbpqkl5anPnWFZHpRWB0s7DzU+ZfOOEPfz Td5cRH4hSBDTIgzRVsd/w6R9CVjb6P4U03XtaigSBrvclGDFWGI7dQfG4 A==; X-IronPort-AV: E=McAfee;i="6600,9927,10672"; a="340367853" X-IronPort-AV: E=Sophos;i="5.98,324,1673942400"; d="scan'208";a="340367853" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Apr 2023 17:21:25 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10672"; a="680852079" X-IronPort-AV: E=Sophos;i="5.98,324,1673942400"; d="scan'208";a="680852079" Received: from lkp-server01.sh.intel.com (HELO b613635ddfff) ([10.239.97.150]) by orsmga007.jf.intel.com with ESMTP; 06 Apr 2023 17:21:23 -0700 Received: from kbuild by b613635ddfff with local (Exim 4.96) (envelope-from ) id 1pkZqw-000RvY-0m; Fri, 07 Apr 2023 00:21:18 +0000 Date: Fri, 7 Apr 2023 08:21:11 +0800 From: kernel test robot To: Isaku Yamahata Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: [intel-tdx:kvm-upstream-workaround 312/335] arch/x86/kvm/mmu/mmu.c:713:5: warning: no previous prototype for function 'kvm_mmu_topup_memory_cache_for_split' Message-ID: <202304070804.xlAhNFOq-lkp@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://github.com/intel/tdx.git kvm-upstream-workaround head: 9b1b005c63f21cbc8dc4f1691b05964c90240385 commit: 775207f6d101d7d963d98bf833323efcec435c4d [312/335] [REVERTME] KVM: TDX, x86/tdp_mmu: Protect Secure-EPT page config: i386-randconfig-a011 (https://download.01.org/0day-ci/archive/20230407/202304070804.xlAhNFOq-lkp@intel.com/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) 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/775207f6d101d7d963d98bf833323efcec435c4d git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx kvm-upstream-workaround git checkout 775207f6d101d7d963d98bf833323efcec435c4d # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig COMPILER_INSTALL_PATH=$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 | Link: https://lore.kernel.org/oe-kbuild-all/202304070804.xlAhNFOq-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from arch/x86/kvm/mmu/mmu.c:19: In file included from arch/x86/kvm/irq.h:15: In file included from include/linux/kvm_host.h:42: In file included from include/linux/kvm_para.h:5: In file included from include/uapi/linux/kvm_para.h:37: In file included from arch/x86/include/asm/kvm_para.h:10: arch/x86/include/asm/tdx.h:188:49: warning: shift count >= width of type [-Wshift-count-overflow] struct tdx_module_output *out) { return TDX_SEAMCALL_UD; }; ^~~~~~~~~~~~~~~ arch/x86/include/asm/tdx.h:26:28: note: expanded from macro 'TDX_SEAMCALL_UD' #define TDX_SEAMCALL_UD (TDX_SW_ERROR | X86_TRAP_UD) ^~~~~~~~~~~~ arch/x86/include/asm/tdx.h:21:25: note: expanded from macro 'TDX_SW_ERROR' #define TDX_SW_ERROR (TDX_ERROR | GENMASK_ULL(47, 40)) ^~~~~~~~~ arch/x86/include/asm/tdx.h:20:21: note: expanded from macro 'TDX_ERROR' #define TDX_ERROR _BITUL(TDX_ERROR_BIT) ^~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/const.h:28:27: note: expanded from macro '_BITUL' #define _BITUL(x) (_UL(1) << (x)) ^ ~~~ >> arch/x86/kvm/mmu/mmu.c:713:5: warning: no previous prototype for function 'kvm_mmu_topup_memory_cache_for_split' [-Wmissing-prototypes] int kvm_mmu_topup_memory_cache_for_split(struct kvm *kvm) ^ arch/x86/kvm/mmu/mmu.c:713:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int kvm_mmu_topup_memory_cache_for_split(struct kvm *kvm) ^ static 2 warnings generated. vim +/kvm_mmu_topup_memory_cache_for_split +713 arch/x86/kvm/mmu/mmu.c 712 > 713 int kvm_mmu_topup_memory_cache_for_split(struct kvm *kvm) 714 { 715 int r = 0; 716 #ifdef CONFIG_INTEL_TDX_HOST_DEBUG_MEMORY_CORRUPT 717 struct kvm_mmu_memory_cache *mc; 718 int start, end, i; 719 720 mutex_lock(&kvm->arch.private_spt_for_split_lock); 721 mc = &kvm->arch.private_spt_for_split_cache; 722 start = kvm_mmu_memory_cache_nr_free_objects(mc); 723 r = kvm_mmu_topup_memory_cache(mc, KVM_MAX_HUGEPAGE_LEVEL * 724 kvm->created_vcpus); 725 end = kvm_mmu_memory_cache_nr_free_objects(mc); 726 for (i = start; i < end; i++) 727 kvm_mmu_split_direct_map(virt_to_page(mc->objects[i])); 728 mutex_unlock(&kvm->arch.private_spt_for_split_lock); 729 #endif 730 return r; 731 } 732 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests