From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.20]) (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 92FC91F543D for ; Wed, 18 Dec 2024 21:19:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.20 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734556771; cv=none; b=mRVNbAYQX6FT5OGuwrEToWnGOMWMTnJUe2BU8gY/kLeld837VucKGd3QkL00Th9bI4hiturFDjjZ/iDIZ9XtdeReOifgSBPSxHzVK8y+gN5SN4NyxT3iSwZCunaNtI3zTLNvaG7KHyJbMVgPOpx3+Yiz/zTUGeGl2kan93+U/Ts= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734556771; c=relaxed/simple; bh=ExiQFn0r8puZpxEGJkDQc8ABYwRiPfJ6IruE/mQ2jNM=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=LDtnvHD5vX4v9X+FgaWPKmUQAvGYvH2xgBOLV9nJL+8irs3GGHdrbzyZXzHK4nja2dGKMjvrcsrUUM/BmlYylA63sXWVkXwujJkzZSWonN0QWjAdA6D6A4/wADobNIhr3E4hGZ31r1zJXmqUbbrajoFwa3t4QuYZJlPrlTFDcN4= 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=UIop/PKq; arc=none smtp.client-ip=198.175.65.20 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="UIop/PKq" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1734556770; x=1766092770; h=date:from:to:cc:subject:message-id:mime-version; bh=ExiQFn0r8puZpxEGJkDQc8ABYwRiPfJ6IruE/mQ2jNM=; b=UIop/PKqFtFpWIEm1kDI+neurs1TPIWdgZ/euamhFGh411lqDdimd+8I aivupej4qzwhqfljZjHZ7nIeUyKwVGwqeiZYcgx1/aF7lxZxfAlbdkU14 WTwBNedc8m3NND2xEgMX4QhtG7pdqTanOWYIKgvz/1vP8QAa5cfBFFcQ+ VLLwb0sy3D2i++DiX0n2sOSPopCXLGs3SvufEzRTnjF6FNjhJS8ubKdGv NpqojXHSEIrzfvqMnSyZSzqT1rWgWINkhdOE7SIfTYAzyABSOPgbK0hrd 3Jsot7Sk8jrwwbDCIO4JMUc9iem9G4RMzVWsz3SjpUB8rSt2JpmWwNaAS Q==; X-CSE-ConnectionGUID: 8gKvIDdsQmyBzfAqQjdRkg== X-CSE-MsgGUID: 0mpRKSHTSrudORh5x1b+RQ== X-IronPort-AV: E=McAfee;i="6700,10204,11290"; a="34775409" X-IronPort-AV: E=Sophos;i="6.12,245,1728975600"; d="scan'208";a="34775409" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Dec 2024 13:19:30 -0800 X-CSE-ConnectionGUID: VEgO2w5RSZCzqQHmCdquiQ== X-CSE-MsgGUID: 0ZlYUyhfTJmy3BM8Wceqbw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,245,1728975600"; d="scan'208";a="98040357" Received: from lkp-server01.sh.intel.com (HELO 82a3f569d0cb) ([10.239.97.150]) by orviesa006.jf.intel.com with ESMTP; 18 Dec 2024 13:19:28 -0800 Received: from kbuild by 82a3f569d0cb with local (Exim 4.96) (envelope-from ) id 1tO1S1-000Gdr-2Q; Wed, 18 Dec 2024 21:19:25 +0000 Date: Thu, 19 Dec 2024 05:18:47 +0800 From: kernel test robot To: Andrii Nakryiko Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Alexei Starovoitov Subject: kernel/bpf/token.c:50:6-27: WARNING: atomic_dec_and_test variation before object free at line 54. Message-ID: <202412190521.9R1HKuug-lkp@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org 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: c061cf420ded391e32f99cd483e1e0107f213b12 commit: 35f96de04127d332a5c5e8a155d31f452f88c76d bpf: Introduce BPF token object date: 11 months ago config: hexagon-randconfig-r051-20241218 (https://download.01.org/0day-ci/archive/20241219/202412190521.9R1HKuug-lkp@intel.com/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 2dc22615fd46ab2566d0f26d5ba234ab12dc4bf8) 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/202412190521.9R1HKuug-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> kernel/bpf/token.c:50:6-27: WARNING: atomic_dec_and_test variation before object free at line 54. vim +50 kernel/bpf/token.c 44 45 void bpf_token_put(struct bpf_token *token) 46 { 47 if (!token) 48 return; 49 > 50 if (!atomic64_dec_and_test(&token->refcnt)) 51 return; 52 53 INIT_WORK(&token->work, bpf_token_put_deferred); > 54 schedule_work(&token->work); 55 } 56 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki