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 D673FECAAD3 for ; Fri, 2 Sep 2022 02:53:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233341AbiIBCxy (ORCPT ); Thu, 1 Sep 2022 22:53:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41892 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232291AbiIBCxx (ORCPT ); Thu, 1 Sep 2022 22:53:53 -0400 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DAF81A6C5A; Thu, 1 Sep 2022 19:53:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1662087232; x=1693623232; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=FwyR9hMdl684ayilMVL+6KHSWkdMFizQTJkDzfzj/G4=; b=OkiFNcblbOr30eaIwfPYtRC/gCAKyrXCx1CEV4xFD0Xl//H//M8QKPxF 9elB9hqww0JxWQObQv+jJaQ/0uL+Bwf8y2nKp/0OE5rfpPot/jMH16tWk TOgfNsYQsnj3R8Q6xLvaAPsJHDJ++pxtaVVn2e/Yehg+fO9KxHcojRHz2 BWUXo49d2FfDq6eg18FU/QAok0dytf8SVYuMqudYTs+3Fd3GcYSOvFxem iLRhTWpccPn7AjxS2rFHbzSdHdb7HKI0paBO3bZaBx20jnrtbf3kerOMo 9KTlhIrTXqir2ppjMkKiz0xDc4H8LgljqdjsKb530S9taS80uPbvOi3Ny A==; X-IronPort-AV: E=McAfee;i="6500,9779,10457"; a="322033562" X-IronPort-AV: E=Sophos;i="5.93,281,1654585200"; d="scan'208";a="322033562" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2022 19:53:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,281,1654585200"; d="scan'208";a="642702707" Received: from lkp-server02.sh.intel.com (HELO fccc941c3034) ([10.239.97.151]) by orsmga008.jf.intel.com with ESMTP; 01 Sep 2022 19:53:48 -0700 Received: from kbuild by fccc941c3034 with local (Exim 4.96) (envelope-from ) id 1oTwoW-000035-0j; Fri, 02 Sep 2022 02:53:48 +0000 Date: Fri, 2 Sep 2022 10:53:26 +0800 From: kernel test robot To: Sean Christopherson , Ingo Molnar , Arnaldo Carvalho de Melo , Paolo Bonzini Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Like Xu Subject: Re: [PATCH v4 1/5] perf/x86/core: Remove unnecessary stubs provided for KVM-only helpers Message-ID: <202209021033.bPC3ttgM-lkp@intel.com> References: <20220901173258.925729-2-seanjc@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220901173258.925729-2-seanjc@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org Hi Sean, I love your patch! Perhaps something to improve: [auto build test WARNING on 372d07084593dc7a399bf9bee815711b1fb1bcf2] url: https://github.com/intel-lab-lkp/linux/commits/Sean-Christopherson/KVM-x86-Intel-LBR-related-perf-cleanups/20220902-013352 base: 372d07084593dc7a399bf9bee815711b1fb1bcf2 config: x86_64-randconfig-a012 (https://download.01.org/0day-ci/archive/20220902/202209021033.bPC3ttgM-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-lab-lkp/linux/commit/b1f1d2f5eb44253f5d059757c03e7fd413b2e306 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Sean-Christopherson/KVM-x86-Intel-LBR-related-perf-cleanups/20220902-013352 git checkout b1f1d2f5eb44253f5d059757c03e7fd413b2e306 # 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 SHELL=/bin/bash arch/x86/events/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> arch/x86/events/core.c:696:31: warning: no previous prototype for function 'perf_guest_get_msrs' [-Wmissing-prototypes] struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr, void *data) ^ arch/x86/events/core.c:696:1: note: declare 'static' if the function is not intended to be used outside of this translation unit struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr, void *data) ^ static 1 warning generated. vim +/perf_guest_get_msrs +696 arch/x86/events/core.c f87ad35d37fa54 arch/x86/kernel/cpu/perf_counter.c Jaswinder Singh Rajput 2009-02-27 695 39a4d779546a99 arch/x86/events/core.c Like Xu 2022-04-11 @696 struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr, void *data) abd562df94d19d arch/x86/events/core.c Like Xu 2021-01-25 697 { 39a4d779546a99 arch/x86/events/core.c Like Xu 2022-04-11 698 return static_call(x86_pmu_guest_get_msrs)(nr, data); abd562df94d19d arch/x86/events/core.c Like Xu 2021-01-25 699 } abd562df94d19d arch/x86/events/core.c Like Xu 2021-01-25 700 EXPORT_SYMBOL_GPL(perf_guest_get_msrs); abd562df94d19d arch/x86/events/core.c Like Xu 2021-01-25 701 -- 0-DAY CI Kernel Test Service https://01.org/lkp