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 2BA63C6FA86 for ; Thu, 8 Sep 2022 15:32:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229812AbiIHPc3 (ORCPT ); Thu, 8 Sep 2022 11:32:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39810 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229667AbiIHPc0 (ORCPT ); Thu, 8 Sep 2022 11:32:26 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 06BC2DF91; Thu, 8 Sep 2022 08:32:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1662651144; x=1694187144; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=hgS6CotZ3Q2j2e4c7OneYE8xCiB3LwVd0bcM6e338KU=; b=Z1yM4pYmVBJrf1NUvVMbZvrha2/FoFapo7+71Q43l3z7b9mxpLttCzCs sDf6XD1PTj+srU1XCOOzex2d1jAIfU7GfE8iRV4GLgGb/r6dUZYBCK0sg Jj6Jqn7koYWdYxYjtedUSJ2ynF33cooDECe+TDskL9gKjAQ1CkRrKF5QJ G9mxdLO9pS0a1HNjf+omEH8c8FMdlR94NS6Ze/npuaPEqFesr5XHF2Rlg O5QveMt19n9TgaQAsV5+c3sDtc+NuKFHEthmA4EFqR3oZQTKJ6ydFH/Jk 9KlyX9iIh5z4qfPIMkK0jLZWOQ9UPMfFY+tS5zcviAUie1HoTmKTRK8Y/ Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10464"; a="276951192" X-IronPort-AV: E=Sophos;i="5.93,300,1654585200"; d="scan'208";a="276951192" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Sep 2022 08:32:18 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,300,1654585200"; d="scan'208";a="614927447" Received: from lkp-server02.sh.intel.com (HELO b2938d2e5c5a) ([10.239.97.151]) by orsmga002.jf.intel.com with ESMTP; 08 Sep 2022 08:32:14 -0700 Received: from kbuild by b2938d2e5c5a with local (Exim 4.96) (envelope-from ) id 1oWJVm-00005N-10; Thu, 08 Sep 2022 15:32:14 +0000 Date: Thu, 8 Sep 2022 23:31:22 +0800 From: kernel test robot To: Anshuman Khandual , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org, peterz@infradead.org, acme@kernel.org, mark.rutland@arm.com, will@kernel.org, catalin.marinas@arm.com Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, Anshuman Khandual , James Clark , Rob Herring , Marc Zyngier , Ingo Molnar Subject: Re: [PATCH V2 5/7] arm64/perf: Drive BRBE from perf event states Message-ID: <202209082350.lDY2EvGx-lkp@intel.com> References: <20220908051046.465307-6-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220908051046.465307-6-anshuman.khandual@arm.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Anshuman, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on acme/perf/core] [also build test WARNING on tip/perf/core arm64/for-next/core linus/master v6.0-rc4 next-20220908] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Anshuman-Khandual/arm64-perf-Enable-branch-stack-sampling/20220908-131425 base: https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git perf/core config: arm64-randconfig-r025-20220907 (https://download.01.org/0day-ci/archive/20220908/202209082350.lDY2EvGx-lkp@intel.com/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 1546df49f5a6d09df78f569e4137ddb365a3e827) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/5c7c07e050abb38b80d0c129fdef3a6f4b761017 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Anshuman-Khandual/arm64-perf-Enable-branch-stack-sampling/20220908-131425 git checkout 5c7c07e050abb38b80d0c129fdef3a6f4b761017 # 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=arm64 SHELL=/bin/bash drivers/perf/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/perf/arm_pmu.c:535:12: warning: stack frame size (2064) exceeds limit (2048) in 'armpmu_event_init' [-Wframe-larger-than] static int armpmu_event_init(struct perf_event *event) ^ 1 warning generated. vim +/armpmu_event_init +535 drivers/perf/arm_pmu.c 1b8873a0c6ec51 arch/arm/kernel/perf_event.c Jamie Iles 2010-02-02 534 b0a873ebbf87bf arch/arm/kernel/perf_event.c Peter Zijlstra 2010-06-11 @535 static int armpmu_event_init(struct perf_event *event) 1b8873a0c6ec51 arch/arm/kernel/perf_event.c Jamie Iles 2010-02-02 536 { 8a16b34e21199e arch/arm/kernel/perf_event.c Mark Rutland 2011-04-28 537 struct arm_pmu *armpmu = to_arm_pmu(event->pmu); 1b8873a0c6ec51 arch/arm/kernel/perf_event.c Jamie Iles 2010-02-02 538 cc88116da0d18b arch/arm/kernel/perf_event.c Mark Rutland 2015-05-13 539 /* cc88116da0d18b arch/arm/kernel/perf_event.c Mark Rutland 2015-05-13 540 * Reject CPU-affine events for CPUs that are of a different class to cc88116da0d18b arch/arm/kernel/perf_event.c Mark Rutland 2015-05-13 541 * that which this PMU handles. Process-following events (where cc88116da0d18b arch/arm/kernel/perf_event.c Mark Rutland 2015-05-13 542 * event->cpu == -1) can be migrated between CPUs, and thus we have to cc88116da0d18b arch/arm/kernel/perf_event.c Mark Rutland 2015-05-13 543 * reject them later (in armpmu_add) if they're scheduled on a cc88116da0d18b arch/arm/kernel/perf_event.c Mark Rutland 2015-05-13 544 * different class of CPU. cc88116da0d18b arch/arm/kernel/perf_event.c Mark Rutland 2015-05-13 545 */ cc88116da0d18b arch/arm/kernel/perf_event.c Mark Rutland 2015-05-13 546 if (event->cpu != -1 && cc88116da0d18b arch/arm/kernel/perf_event.c Mark Rutland 2015-05-13 547 !cpumask_test_cpu(event->cpu, &armpmu->supported_cpus)) cc88116da0d18b arch/arm/kernel/perf_event.c Mark Rutland 2015-05-13 548 return -ENOENT; cc88116da0d18b arch/arm/kernel/perf_event.c Mark Rutland 2015-05-13 549 2481c5fa6db023 arch/arm/kernel/perf_event.c Stephane Eranian 2012-02-09 550 /* does not support taken branch sampling */ 2481c5fa6db023 arch/arm/kernel/perf_event.c Stephane Eranian 2012-02-09 551 if (has_branch_stack(event)) 2481c5fa6db023 arch/arm/kernel/perf_event.c Stephane Eranian 2012-02-09 552 return -EOPNOTSUPP; 2481c5fa6db023 arch/arm/kernel/perf_event.c Stephane Eranian 2012-02-09 553 e1f431b57ef9e4 arch/arm/kernel/perf_event.c Mark Rutland 2011-04-28 554 if (armpmu->map_event(event) == -ENOENT) b0a873ebbf87bf arch/arm/kernel/perf_event.c Peter Zijlstra 2010-06-11 555 return -ENOENT; b0a873ebbf87bf arch/arm/kernel/perf_event.c Peter Zijlstra 2010-06-11 556 c09adab01e4aee drivers/perf/arm_pmu.c Mark Rutland 2017-03-10 557 return __hw_perf_event_init(event); 1b8873a0c6ec51 arch/arm/kernel/perf_event.c Jamie Iles 2010-02-02 558 } 1b8873a0c6ec51 arch/arm/kernel/perf_event.c Jamie Iles 2010-02-02 559 -- 0-DAY CI Kernel Test Service https://01.org/lkp