From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============8720854072581979486==" MIME-Version: 1.0 From: kernel test robot To: kbuild-all@lists.01.org Subject: Re: [PATCH v5 03/13] perf/x86/amd: add AMD Fam19h Branch Sampling support Date: Thu, 27 Jan 2022 09:52:00 +0800 Message-ID: <202201270923.FG90uMou-lkp@intel.com> In-Reply-To: <20220126233454.3362047-4-eranian@google.com> List-Id: --===============8720854072581979486== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Hi Stephane, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on next-20220125] [cannot apply to tip/x86/core rafael-pm/linux-next tip/perf/core v5.17-rc1 = v5.16 v5.16-rc8 v5.17-rc1] [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] url: https://github.com/0day-ci/linux/commits/Stephane-Eranian/perf-core= -add-perf_clear_branch_entry_bitfields-helper/20220127-083516 base: d25ee88530253138d0b20d43511ca5acbda4e9f7 config: i386-buildonly-randconfig-r002-20220124 (https://download.01.org/0d= ay-ci/archive/20220127/202201270923.FG90uMou-lkp(a)intel.com/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=3D1 build): # https://github.com/0day-ci/linux/commit/933d072f6e0c0409115a8038a= 89a56979a042d30 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Stephane-Eranian/perf-core-add-per= f_clear_branch_entry_bitfields-helper/20220127-083516 git checkout 933d072f6e0c0409115a8038a89a56979a042d30 # save the config file to linux build tree mkdir build_dir make W=3D1 O=3Dbuild_dir ARCH=3Di386 SHELL=3D/bin/bash arch/x86/eve= nts/amd/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): arch/x86/events/amd/core.c: In function 'amd_pmu_enable_all': >> arch/x86/events/amd/core.c:676:24: warning: variable 'hwc' set but not u= sed [-Wunused-but-set-variable] 676 | struct hw_perf_event *hwc; | ^~~ vim +/hwc +676 arch/x86/events/amd/core.c 672 = 673 static void amd_pmu_enable_all(int added) 674 { 675 struct cpu_hw_events *cpuc =3D this_cpu_ptr(&cpu_hw_events); > 676 struct hw_perf_event *hwc; 677 int idx; 678 = 679 amd_brs_enable_all(); 680 = 681 for (idx =3D 0; idx < x86_pmu.num_counters; idx++) { 682 hwc =3D &cpuc->events[idx]->hw; 683 = 684 /* only activate events which are marked as active */ 685 if (!test_bit(idx, cpuc->active_mask)) 686 continue; 687 = 688 amd_pmu_enable_event(cpuc->events[idx]); 689 } 690 } 691 = --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org --===============8720854072581979486==--