From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) (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 309F27470; Mon, 24 Apr 2023 22:46:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1682376367; x=1713912367; h=date:from:to:cc:subject:message-id:mime-version; bh=gkVOv+IXqynqB9kY6WiS6cDq6RDlE18HHF+7Fnwbt2M=; b=jEyOGHKDGOdz+MISJ+AWTenrBgIcfEX2alFnMuTLuZRmArgFgrttad8+ NbT4Cx9gbV0wI8a+xEYauj3etURjXArlk+KNXhGxowJPw68lNe+xdJSz9 RzSEFG8wuxs4MXHKqNgJ1GgAILYz3LgpgxvuC0fhlobkRCaV2UQOIe9cE 96nI7K0OnAYAwEf945KzdsIS/s5EblkqdfP0cTG/dH+kpFzwI/hHTiW28 S7vtSEPaqObwXOoT8J9LpQsKx18V0u43uvBAkKCL53/N03EEnkV2HtBlP kM9YYqOFi5w7yIEJp5ZARAY23x1q9YcehogBSu+LGotXGB88Eg1tCVnEn A==; X-IronPort-AV: E=McAfee;i="6600,9927,10690"; a="411872777" X-IronPort-AV: E=Sophos;i="5.99,223,1677571200"; d="scan'208";a="411872777" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Apr 2023 15:46:05 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10690"; a="693253778" X-IronPort-AV: E=Sophos;i="5.99,223,1677571200"; d="scan'208";a="693253778" Received: from lkp-server01.sh.intel.com (HELO b613635ddfff) ([10.239.97.150]) by orsmga002.jf.intel.com with ESMTP; 24 Apr 2023 15:46:04 -0700 Received: from kbuild by b613635ddfff with local (Exim 4.96) (envelope-from ) id 1pr4wc-000ih8-2i; Mon, 24 Apr 2023 22:46:02 +0000 Date: Tue, 25 Apr 2023 06:45:34 +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 312/338] arch/x86/kvm/mmu/mmu.c:713:5: warning: no previous prototype for function 'kvm_mmu_topup_memory_cache_for_split' Message-ID: <202304250651.Pftd0rsh-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: 5217810067c6f32309d1473fc94649608330885c commit: a51188903783ebbcbc6cd13b599fc53b3d5e6695 [312/338] [REVERTME] KVM: TDX, x86/tdp_mmu: Protect Secure-EPT page config: x86_64-randconfig-a014 (https://download.01.org/0day-ci/archive/20230425/202304250651.Pftd0rsh-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/a51188903783ebbcbc6cd13b599fc53b3d5e6695 git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx kvm-upstream-workaround git checkout a51188903783ebbcbc6cd13b599fc53b3d5e6695 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 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/202304250651.Pftd0rsh-lkp@intel.com/ All warnings (new ones prefixed by >>): >> 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 1 warning 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