From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.16]) (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 B286E343884 for ; Tue, 2 Jun 2026 02:09:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780366159; cv=none; b=s+YSNiOKCvuX2MMAZ/ATqv0sfYmTc0pHfb154HrHgjxCJBJHIVLpZITiz3YLw47YJXmjr5n+HQvWVILHByTdmzRkt08cJvk8pXERSX70qBGkpgxyp3JaEi0kf9EJD7FClsjJ8vdVVXpaon3xL6P52N/5fIbIDOo9s8R5aHhHdjo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780366159; c=relaxed/simple; bh=2CGQeitG8MF52OBnjopAmcSlSdYbcjoYd/eIMzglXNA=; h=Date:From:To:Cc:Subject:Message-ID; b=Zb8YpKy7zHDoebABlzUvlmgQXkBWewfcXB4FhD79tGhV531HMwHJCMW/Jt8qmA3Q+Fe8qydbRWH2/4+prjF24YeABfhwWaBRwFy8b+s4UF7A601xePiqBYztq3H35dhRPscKM0KqHiOAScVOo9mr3PSS5Gs4aJqrutWnY7Ci8is= 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=Borm5YEK; arc=none smtp.client-ip=198.175.65.16 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="Borm5YEK" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1780366157; x=1811902157; h=date:from:to:cc:subject:message-id; bh=2CGQeitG8MF52OBnjopAmcSlSdYbcjoYd/eIMzglXNA=; b=Borm5YEKfUL2/IqDFDRA2EqrZELrb5W+ITvPQdLDNOYYE8HMbWpM7NcA cj2tEJguauyvf10Pnu0XKCybe4+NEEADlx8S95qlEhZaQUkmwIkuLdjiO 1XzhFvyTGGngV3fOAEmnewkZ4thk9YfhobWFYZcEsGyNQQ+oNhz47gqWV RhLkIBQuCV+xpEjWjanv1o/HTVuKBnIwh49ofEkVLICMysDrD43/Xs4dv XrB6lwywsMIVHZCp46U31XJlTSIz9OZj3onaZAw5Nr2XZnFDakH2G/Ygr Pob40DfvwTCCXqY5Mdz5UbxSvdc9n5bxmsswd4w3p332eZtq6sk4KX5zT g==; X-CSE-ConnectionGUID: oQcDQP8hTqWOXg7YcJVfQQ== X-CSE-MsgGUID: B6S5MvZXTVe+x6UAqsoBrw== X-IronPort-AV: E=McAfee;i="6800,10657,11804"; a="81317677" X-IronPort-AV: E=Sophos;i="6.24,182,1774335600"; d="scan'208";a="81317677" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jun 2026 19:09:17 -0700 X-CSE-ConnectionGUID: foTiEtXSR8ahO2oBn+3/ig== X-CSE-MsgGUID: wA2GHkeRSZaF4vKNgKWFkQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,182,1774335600"; d="scan'208";a="243858556" Received: from lkp-server01.sh.intel.com (HELO f0d55cb201f0) ([10.239.97.150]) by orviesa009.jf.intel.com with ESMTP; 01 Jun 2026 19:09:15 -0700 Received: from kbuild by f0d55cb201f0 with local (Exim 4.98.2) (envelope-from ) id 1wUEZ6-00000000BMT-0uWl; Tue, 02 Jun 2026 02:09:12 +0000 Date: Tue, 02 Jun 2026 10:09:06 +0800 From: kernel test robot To: David Howells Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org Subject: fs/afs/server.c:375:5-24: WARNING: atomic_dec_and_test variation before object free at line 383. Message-ID: <202606021010.6QMyYfim-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: e43ffb69e0438cddd72aaa30898b4dc446f664f8 commit: 4882ba78574e2d8c579658f65f6784b0d139d173 afs: Fix afs_server ref accounting date: 1 year, 3 months ago config: hexagon-randconfig-r064-20260601 (https://download.01.org/0day-ci/archive/20260602/202606021010.6QMyYfim-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 9409c07de6378507397ecdb6f05f628f58110112) 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 | Fixes: 4882ba78574e ("afs: Fix afs_server ref accounting") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202606021010.6QMyYfim-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> fs/afs/server.c:375:5-24: WARNING: atomic_dec_and_test variation before object free at line 383. fs/afs/server.c:357:5-24: WARNING: atomic_dec_and_test variation before object free at line 360. vim +375 fs/afs/server.c 365 366 /* 367 * Drop an active count on a server object. 368 */ 369 void afs_unuse_server(struct afs_net *net, struct afs_server *server, 370 enum afs_server_trace reason) 371 { 372 if (!server) 373 return; 374 > 375 if (atomic_dec_and_test(&server->active)) { 376 if (!test_bit(AFS_SERVER_FL_EXPIRED, &server->flags) && 377 READ_ONCE(server->cell->state) < AFS_CELL_FAILED) { 378 time64_t unuse_time = ktime_get_real_seconds(); 379 380 server->unuse_time = unuse_time; 381 afs_set_server_timer(server, afs_server_gc_delay); 382 } else { > 383 schedule_work(&server->destroyer); 384 } 385 } 386 387 afs_put_server(net, server, reason); 388 } 389 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki