From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (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 607E428469A; Fri, 12 Dec 2025 14:22:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765549323; cv=none; b=mMwbHgWT3SjTT9Qb0umXF6amrn4xSgSX7aq1w6XSzCu3tI7LlunUkReoqbLWilsARV/rFLQjG88PqFBYMl+g0jLQ2Uh41YgMMB3nt0LZHgJoN3GmaURSuRWu53WH4/X3RuRmUw3byWmsTpTmUfrCvbKFqzvr6q2XkWGRGQIwnLs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765549323; c=relaxed/simple; bh=liM84Nb2aA8l19AwpljS4wtIU7rtYhD0WXSCvrV5NWM=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=qwBTk+gmfr4A5ipEmJaqg4ZuU6E+hNdviY8Qvsn0Hc0kThS8C4QmkzSZ2aT77DieI4VuzXkyl/mTboRDptRSPyUvG28w38LBHwOe7kNaQQZbiWeSmKB4SUm83WlMSUh5WhbPDgnYaMliUtI7LBPmL6P51gmBoqjJf3+tD3wLwSM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=bXjdLGQ/; arc=none smtp.client-ip=192.198.163.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="bXjdLGQ/" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1765549321; x=1797085321; h=date:from:to:cc:subject:message-id:mime-version; bh=liM84Nb2aA8l19AwpljS4wtIU7rtYhD0WXSCvrV5NWM=; b=bXjdLGQ/uHbEj3PFgVIv47tdubt3Hbr2R8UUP8Pbaceg3cOxnIchVBOJ rbpsG5saEwvMv2LforAZsALMGd9dE+crjmkgpwC5PRNOhMfebFXMne1aH U2gVEkUR6H2ZWkFfZ4MSuyLm0ea+8ypvPUFxtrT8SWES09f1UMlb967cG uzwDLft3gnWCuTEf2erCx205RvQYX5KAMLZCzLo8InsX7MldVxjsOE0F3 cvwpu+XIZ+qHDl3JiymP/9U/uymz2qkj4dC7wHPTMQ8C5PcOgwNqF/DPv ciYbP2vDKU1bzo7lEQoJtEEQTQlVMeU1eCvggnMQ3IpbsNeMd8qGssUSB w==; X-CSE-ConnectionGUID: vtiLsMvKTPe32KGINqIRNw== X-CSE-MsgGUID: dycsmnzzQXGq0QKQNq0dFA== X-IronPort-AV: E=McAfee;i="6800,10657,11640"; a="67624559" X-IronPort-AV: E=Sophos;i="6.21,143,1763452800"; d="scan'208";a="67624559" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Dec 2025 06:22:00 -0800 X-CSE-ConnectionGUID: irkOBfTLQeWYfDTVJnJrcA== X-CSE-MsgGUID: APtOmKBUSQ6nanvDaPlM4w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,143,1763452800"; d="scan'208";a="197003276" Received: from lkp-server01.sh.intel.com (HELO d335e3c6db51) ([10.239.97.150]) by fmviesa006.fm.intel.com with ESMTP; 12 Dec 2025 06:21:59 -0800 Received: from kbuild by d335e3c6db51 with local (Exim 4.98.2) (envelope-from ) id 1vU41t-0000000069T-1Ka9; Fri, 12 Dec 2025 14:21:57 +0000 Date: Fri, 12 Dec 2025 22:21:07 +0800 From: kernel test robot To: Oliver Upton Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Marc Zyngier Subject: drivers/perf/apple_m1_cpu_pmu.c:404:7: warning: variable 'user' set but not used Message-ID: <202512122259.IXHvifS1-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 187d0801404f415f22c0b31531982c7ea97fa341 commit: 75ecffc361bbc85696c084f3d3c73eb207386e3f drivers/perf: apple_m1: Refactor event select/filter configuration date: 9 months ago config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20251212/202512122259.IXHvifS1-lkp@intel.com/config) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251212/202512122259.IXHvifS1-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202512122259.IXHvifS1-lkp@intel.com/ All warnings (new ones prefixed by >>): | ^~~~~~~~~~~~~ include/linux/bits.h:34:2: note: expanded from macro 'GENMASK' 34 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:162:35: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] 162 | [M1_PMU_PERFCTR_UNKNOWN_f7] = ONLY_2_4_6, | ^~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:27:22: note: expanded from macro 'ONLY_2_4_6' 27 | #define ONLY_2_4_6 (BIT(2) | BIT(4) | BIT(6)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:132:35: note: previous initialization is here 132 | [0 ... M1_PMU_PERFCTR_LAST] = ANY_BUT_0_1, | ^~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:25:23: note: expanded from macro 'ANY_BUT_0_1' 25 | #define ANY_BUT_0_1 GENMASK(9, 2) | ^~~~~~~~~~~~~ include/linux/bits.h:34:2: note: expanded from macro 'GENMASK' 34 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:163:35: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] 163 | [M1_PMU_PERFCTR_UNKNOWN_f8] = ONLY_2_TO_7, | ^~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:26:23: note: expanded from macro 'ONLY_2_TO_7' 26 | #define ONLY_2_TO_7 GENMASK(7, 2) | ^~~~~~~~~~~~~ include/linux/bits.h:34:2: note: expanded from macro 'GENMASK' 34 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:132:35: note: previous initialization is here 132 | [0 ... M1_PMU_PERFCTR_LAST] = ANY_BUT_0_1, | ^~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:25:23: note: expanded from macro 'ANY_BUT_0_1' 25 | #define ANY_BUT_0_1 GENMASK(9, 2) | ^~~~~~~~~~~~~ include/linux/bits.h:34:2: note: expanded from macro 'GENMASK' 34 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:164:35: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] 164 | [M1_PMU_PERFCTR_UNKNOWN_fd] = ONLY_2_4_6, | ^~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:27:22: note: expanded from macro 'ONLY_2_4_6' 27 | #define ONLY_2_4_6 (BIT(2) | BIT(4) | BIT(6)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:132:35: note: previous initialization is here 132 | [0 ... M1_PMU_PERFCTR_LAST] = ANY_BUT_0_1, | ^~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:25:23: note: expanded from macro 'ANY_BUT_0_1' 25 | #define ANY_BUT_0_1 GENMASK(9, 2) | ^~~~~~~~~~~~~ include/linux/bits.h:34:2: note: expanded from macro 'GENMASK' 34 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:169:32: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] 169 | [PERF_COUNT_HW_CPU_CYCLES] = M1_PMU_PERFCTR_CORE_ACTIVE_CYCLE, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:168:2: note: previous initialization is here 168 | PERF_MAP_ALL_UNSUPPORTED, | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/perf/arm_pmu.h:44:34: note: expanded from macro 'PERF_MAP_ALL_UNSUPPORTED' 44 | [0 ... PERF_COUNT_HW_MAX - 1] = HW_OP_UNSUPPORTED | ^~~~~~~~~~~~~~~~~ include/linux/perf/arm_pmu.h:39:28: note: expanded from macro 'HW_OP_UNSUPPORTED' 39 | #define HW_OP_UNSUPPORTED 0xFFFF | ^~~~~~ drivers/perf/apple_m1_cpu_pmu.c:170:34: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] 170 | [PERF_COUNT_HW_INSTRUCTIONS] = M1_PMU_PERFCTR_INST_ALL, | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:168:2: note: previous initialization is here 168 | PERF_MAP_ALL_UNSUPPORTED, | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/perf/arm_pmu.h:44:34: note: expanded from macro 'PERF_MAP_ALL_UNSUPPORTED' 44 | [0 ... PERF_COUNT_HW_MAX - 1] = HW_OP_UNSUPPORTED | ^~~~~~~~~~~~~~~~~ include/linux/perf/arm_pmu.h:39:28: note: expanded from macro 'HW_OP_UNSUPPORTED' 39 | #define HW_OP_UNSUPPORTED 0xFFFF | ^~~~~~ drivers/perf/apple_m1_cpu_pmu.c:171:40: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] 171 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = M1_PMU_PERFCTR_INST_BRANCH, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:168:2: note: previous initialization is here 168 | PERF_MAP_ALL_UNSUPPORTED, | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/perf/arm_pmu.h:44:34: note: expanded from macro 'PERF_MAP_ALL_UNSUPPORTED' 44 | [0 ... PERF_COUNT_HW_MAX - 1] = HW_OP_UNSUPPORTED | ^~~~~~~~~~~~~~~~~ include/linux/perf/arm_pmu.h:39:28: note: expanded from macro 'HW_OP_UNSUPPORTED' 39 | #define HW_OP_UNSUPPORTED 0xFFFF | ^~~~~~ drivers/perf/apple_m1_cpu_pmu.c:172:35: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] 172 | [PERF_COUNT_HW_BRANCH_MISSES] = M1_PMU_PERFCTR_BRANCH_MISPRED_NONSPEC, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/perf/apple_m1_cpu_pmu.c:168:2: note: previous initialization is here 168 | PERF_MAP_ALL_UNSUPPORTED, | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/perf/arm_pmu.h:44:34: note: expanded from macro 'PERF_MAP_ALL_UNSUPPORTED' 44 | [0 ... PERF_COUNT_HW_MAX - 1] = HW_OP_UNSUPPORTED | ^~~~~~~~~~~~~~~~~ include/linux/perf/arm_pmu.h:39:28: note: expanded from macro 'HW_OP_UNSUPPORTED' 39 | #define HW_OP_UNSUPPORTED 0xFFFF | ^~~~~~ >> drivers/perf/apple_m1_cpu_pmu.c:404:7: warning: variable 'user' set but not used [-Wunused-but-set-variable] 404 | bool user, kernel; | ^ drivers/perf/apple_m1_cpu_pmu.c:404:13: warning: variable 'kernel' set but not used [-Wunused-but-set-variable] 404 | bool user, kernel; | ^ drivers/perf/apple_m1_cpu_pmu.c:405:5: warning: variable 'evt' set but not used [-Wunused-but-set-variable] 405 | u8 evt; | ^ 39 warnings generated. vim +/user +404 drivers/perf/apple_m1_cpu_pmu.c 75ecffc361bbc8 Oliver Upton 2025-03-05 400 a639027a1be1d6 Marc Zyngier 2022-02-08 401 /* arm_pmu backend */ a639027a1be1d6 Marc Zyngier 2022-02-08 402 static void m1_pmu_enable_event(struct perf_event *event) a639027a1be1d6 Marc Zyngier 2022-02-08 403 { a639027a1be1d6 Marc Zyngier 2022-02-08 @404 bool user, kernel; a639027a1be1d6 Marc Zyngier 2022-02-08 405 u8 evt; a639027a1be1d6 Marc Zyngier 2022-02-08 406 a639027a1be1d6 Marc Zyngier 2022-02-08 407 evt = event->hw.config_base & M1_PMU_CFG_EVENT; a639027a1be1d6 Marc Zyngier 2022-02-08 408 user = event->hw.config_base & M1_PMU_CFG_COUNT_USER; a639027a1be1d6 Marc Zyngier 2022-02-08 409 kernel = event->hw.config_base & M1_PMU_CFG_COUNT_KERNEL; a639027a1be1d6 Marc Zyngier 2022-02-08 410 a639027a1be1d6 Marc Zyngier 2022-02-08 411 m1_pmu_disable_counter_interrupt(event->hw.idx); a639027a1be1d6 Marc Zyngier 2022-02-08 412 m1_pmu_disable_counter(event->hw.idx); a639027a1be1d6 Marc Zyngier 2022-02-08 413 isb(); a639027a1be1d6 Marc Zyngier 2022-02-08 414 75ecffc361bbc8 Oliver Upton 2025-03-05 415 m1_pmu_configure_counter(event->hw.idx, event->hw.config_base); a639027a1be1d6 Marc Zyngier 2022-02-08 416 m1_pmu_enable_counter(event->hw.idx); a639027a1be1d6 Marc Zyngier 2022-02-08 417 m1_pmu_enable_counter_interrupt(event->hw.idx); a639027a1be1d6 Marc Zyngier 2022-02-08 418 isb(); a639027a1be1d6 Marc Zyngier 2022-02-08 419 } a639027a1be1d6 Marc Zyngier 2022-02-08 420 :::::: The code at line 404 was first introduced by commit :::::: a639027a1be1d68437e1c2cac6ed16306c84ab3c drivers/perf: Add Apple icestorm/firestorm CPU PMU driver :::::: TO: Marc Zyngier :::::: CC: Will Deacon -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki