From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (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 066D5145B07 for ; Thu, 31 Oct 2024 09:02:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730365330; cv=none; b=Pd1D7JYF4VkI1NhRhhBO3unfqaaF16xXI0Mzsq6sqE5ikkL+DzIdFwCgvWiGtA0T8j0nAZTTAH15hyuk9xCqWJlJ+++5aey2iYjJxvg+1emM8oWM8J9PqkAUiHSJBu10sfsMaDdNH0U78Nz0AOcduEFSYsHtO435QTGLSEBzmjk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730365330; c=relaxed/simple; bh=/n84PVy4YbxIQu6M1YNauirYO2NoxZN4HxZ03Pp+Pzc=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=sOWy9WzOQmM16/kxQJ76TFRx62YNrjLwm36IqcpkdCJnA2MFo8AA4QRDBcYvaiYEs+e049oKHES8JzkOM7ksnMEy4CHdidIphwUGFQqN7VnBs4IO7Ee9WCWRgI2tXt0rHEk8j1qR//JfXZClJik9gmqXTKsfVPFQQekRQsW0Pgs= 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=Bzxat93o; arc=none smtp.client-ip=192.198.163.9 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="Bzxat93o" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730365327; x=1761901327; h=date:from:to:cc:subject:message-id:mime-version; bh=/n84PVy4YbxIQu6M1YNauirYO2NoxZN4HxZ03Pp+Pzc=; b=Bzxat93oyPoqEcIw/i5h7ANuMbcW5EbbYv5aEjagrmVHWLAGfK/m+TW/ VyGeQvDxOhFMGP2Q0wApryQHpRtU80Un5M2e864Fz89gh6gSBZucF2U8/ zWoVooNHVC8WB7yX725rWqAs212+2bf9Txq8+Vvd6iY3d86LYwLslFPes mJ1y5dOqnZjbZiupK7BZEOCPLMjoE8dvOQXbMxlXFYtUYkN2VXHDi3iHg mKLYVA89kXxJNziFym6ZoutW3bWAJqwJtyauuUV4WaIeAsOqD2ueYrTLh 7emhEdvrwdOtO2wNJt+nmSLKKsm7dhQK0ihQMJaCgn1AFjUHCdcssu3HU Q==; X-CSE-ConnectionGUID: qeiR6HJYTrSBiBHkmBA4Xw== X-CSE-MsgGUID: lxP7DuOoR3m9hktEYr1/RA== X-IronPort-AV: E=McAfee;i="6700,10204,11241"; a="40705624" X-IronPort-AV: E=Sophos;i="6.11,247,1725346800"; d="scan'208";a="40705624" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Oct 2024 02:02:06 -0700 X-CSE-ConnectionGUID: /Udoi9zqQiOSRfx3k09MHQ== X-CSE-MsgGUID: wlBJBE6ZTFeVUvXQZ81jNA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,247,1725346800"; d="scan'208";a="105885892" Received: from lkp-server01.sh.intel.com (HELO a48cf1aa22e8) ([10.239.97.150]) by fmviesa002.fm.intel.com with ESMTP; 31 Oct 2024 02:02:05 -0700 Received: from kbuild by a48cf1aa22e8 with local (Exim 4.96) (envelope-from ) id 1t6R47-000ftW-1E; Thu, 31 Oct 2024 09:02:03 +0000 Date: Thu, 31 Oct 2024 17:01:35 +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: <202410311704.yIRxjp0C-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: 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 commit: 35f96de04127d332a5c5e8a155d31f452f88c76d bpf: Introduce BPF token object date: 9 months ago config: i386-randconfig-051-20241031 (https://download.01.org/0day-ci/archive/20241031/202410311704.yIRxjp0C-lkp@intel.com/config) compiler: clang version 19.1.2 (https://github.com/llvm/llvm-project 7ba7d8e2f7b6445b60679da826210cdde29eaf8b) 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/202410311704.yIRxjp0C-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