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X-CSE-ConnectionGUID: q9oPB2SyS/2T4PW3C+reOA== X-CSE-MsgGUID: GEoC46BhQG+Y+pffMfWTmg== X-IronPort-AV: E=McAfee;i="6800,10657,11743"; a="75795815" X-IronPort-AV: E=Sophos;i="6.23,149,1770624000"; d="scan'208";a="75795815" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Mar 2026 19:52:21 -0700 X-CSE-ConnectionGUID: s/RwPV1PTMS1GV1NWdA2lw== X-CSE-MsgGUID: nCFehX46TkS03kD9bvvtyg== X-ExtLoop1: 1 Received: from lkp-server01.sh.intel.com (HELO 283bf2e1b94a) ([10.239.97.150]) by fmviesa003.fm.intel.com with ESMTP; 29 Mar 2026 19:52:19 -0700 Received: from kbuild by 283bf2e1b94a with local (Exim 4.98.2) (envelope-from ) id 1w72jg-000000000a9-2r3J; Mon, 30 Mar 2026 02:52:16 +0000 Date: Mon, 30 Mar 2026 10:52:15 +0800 From: kernel test robot To: "Masami Hiramatsu (Google)" Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org Subject: kernel/kprobes.c:520:28: warning: variable 'kprobe_optimizer_task' set but not used Message-ID: <202603301017.4Sho3F0a-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 7aaa8047eafd0bd628065b15757d9b48c5f9c07d commit: 73c12f209462d1712c5f55f3021a1b65b2e084c3 kprobes: Use dedicated kthread for kprobe optimizer date: 8 weeks ago config: powerpc64-randconfig-002-20260330 (https://download.01.org/0day-ci/archive/20260330/202603301017.4Sho3F0a-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 2cd67b8b69f78e3f95918204320c3075a74ba16c) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260330/202603301017.4Sho3F0a-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/202603301017.4Sho3F0a-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/kprobes.c:58:12: warning: variable 'kprobes_initialized' set but not used [-Wunused-but-set-global] 58 | static int kprobes_initialized; | ^ >> kernel/kprobes.c:520:28: warning: variable 'kprobe_optimizer_task' set but not used [-Wunused-but-set-global] 520 | static struct task_struct *kprobe_optimizer_task; | ^ 2 warnings generated. vim +/kprobe_optimizer_task +520 kernel/kprobes.c 518 519 static void optimize_kprobe(struct kprobe *p); > 520 static struct task_struct *kprobe_optimizer_task; 521 static wait_queue_head_t kprobe_optimizer_wait; 522 static atomic_t optimizer_state; 523 enum { 524 OPTIMIZER_ST_IDLE = 0, 525 OPTIMIZER_ST_KICKED = 1, 526 OPTIMIZER_ST_FLUSHING = 2, 527 }; 528 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki