From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 9B7D82DB794; Fri, 2 Oct 2026 17:08:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790960906; cv=none; b=J+Cbmw+jbjInCTtgg6HkEb51DYzat/i9A7PFGwWkARcb20KAuWSHB0tyuZb4kBjSNQe+53Jx9AfZQRPjCKdEm+XIAZjtBBGxG+UbJvRDOGlGgiMItyby0888OA58NmOmm6I8PtUSwaPELiVBeHV+cMusHEhWBVIrB64yWZLD6zA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790960906; c=relaxed/simple; bh=uK+S9GR56VZVhB3ydIynhat7yKHKCnbHDRJZu3kJH3w=; h=Date:From:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=h+sFgEopo4B8ZDpwZ1SaAaXwDYWZ6ydXB1E038VKqwbM1nF7UxsFwjHJYHzJRiFGv9RYNrpT7RJ1I0zcLHNHGPjcHxKqh44ZxXaMDEixTimzaPEklUDPeXz982QtnrPhvW8jSzvZgG/UUvKxA7GBht34v6Y4JBSVsz3SgiMLmJQ= 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=fqXbnB+Y; arc=none smtp.client-ip=198.175.65.13 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="fqXbnB+Y" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1790960904; x=1822496904; h=date:from:cc:subject:message-id:references:mime-version: in-reply-to; bh=uK+S9GR56VZVhB3ydIynhat7yKHKCnbHDRJZu3kJH3w=; b=fqXbnB+YJc4RTcCBnDwtGYSzbSvfQmKHs9LdEQfAyl98beGci3hgYayh 2Ymhp8dZKUOIUp1C/pCQCN2OYfXnPcoVUY9C2mOt+iysn8GJbmJvhghgk r43rMtNRbvxzJuWOb7f/MpdkwSGbY5mTSE2Spr7w8FHEx1qx6qf15zAir gsriJY3bODQurMsMPCkj/FgHJkry9dJfIFcWZYLjeEhK/o/Uzs9271RUH cba5tMQZiu5UOV7MP5uBnGqT6OlIqGHZYUQmflX/szPotFH7bcYTvPQbW if/KnhTIuhwEX5ATclQCZRXJwu7BcI8fXxaYnGutthQwThhdSE+ui10pr w==; X-CSE-ConnectionGUID: 0e+e9uH/R8qDrZNl7OyiFw== X-CSE-MsgGUID: UBmIwGU5RWWhIpKUSjDzQg== X-IronPort-AV: E=McAfee;i="6800,10657,11923"; a="101893303" X-IronPort-AV: E=Sophos;i="6.27,136,1787036400"; d="scan'208";a="101893303" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Oct 2026 10:08:22 -0700 X-CSE-ConnectionGUID: lyWMn0O/QAihQ/2VV+xAUQ== X-CSE-MsgGUID: KVcssg65QweA7cLHmItqPg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,136,1787036400"; d="scan'208";a="275838642" Received: from lkp-server01.sh.intel.com (HELO 462990a40a85) ([10.239.97.150]) by orviesa007.jf.intel.com with ESMTP; 02 Oct 2026 10:08:21 -0700 Received: from kbuild by 462990a40a85 with local (Exim 4.98.2) (envelope-from ) id 1xCgk6-00000000TI1-2Vgy; Fri, 02 Oct 2026 17:08:18 +0000 Date: Sat, 3 Oct 2026 01:07:59 +0800 From: kernel test robot Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: Re: net/sched: cap the accounted backlog before it can wrap Message-ID: <202610030129.hEQ6QJF9-lkp@intel.com> References: <202610030129.hEQ6QJF9-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 In-Reply-To: <202610030129.hEQ6QJF9-lkp@intel.com> Hi Jamal, kernel test robot noticed the following build warnings: url: https://github.com/intel-lab-lkp/linux/commits/Jamal-Hadi-Salim/net-sched-cap-the-accounted-backlog-before-it-can-wrap/20261002-034431 base: patch link: https://lore.kernel.org/r/202610030129.hEQ6QJF9-lkp%40intel.com config: hexagon-randconfig-1001-20261002 (https://download.01.org/0day-ci/archive/20261003/202610030129.hEQ6QJF9-lkp@intel.com/config) compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261003/202610030129.hEQ6QJF9-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/202610030129.hEQ6QJF9-lkp@intel.com/ All warnings (new ones prefixed by >>): >> net/sched/sch_cake.c:1742:66: warning: '/*' within block comment [-Wcomment] 1742 | * consumed by a terminal TC action (reason in *qerr); else *flow/*host | ^ 1 warning generated. vim +1742 net/sched/sch_cake.c 1740 1741 /* Run the optional external classifier. Returns true when the packet was > 1742 * consumed by a terminal TC action (reason in *qerr); else *flow/*host 1743 * hold the filter's overrides (0 if none). 1744 */ 1745 static bool cake_tcf_classify(struct Qdisc *sch, struct sk_buff *skb, 1746 u16 *flow, u16 *host, int *qerr) 1747 { 1748 struct cake_sched_data *q = qdisc_priv(sch); 1749 struct tcf_proto *filter; 1750 struct tcf_result res; 1751 int result; 1752 1753 *flow = 0; 1754 *host = 0; 1755 1756 filter = rcu_dereference_bh(q->filter_list); 1757 if (!filter) 1758 return false; 1759 1760 *qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS; 1761 result = tcf_classify_qdisc(skb, filter, &res, false); 1762 1763 if (result >= 0) { 1764 #ifdef CONFIG_NET_CLS_ACT 1765 switch (result) { 1766 case TC_ACT_STOLEN: 1767 case TC_ACT_QUEUED: 1768 case TC_ACT_TRAP: 1769 *qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN; 1770 fallthrough; 1771 case TC_ACT_SHOT: 1772 return true; 1773 } 1774 #endif 1775 if (TC_H_MIN(res.classid) <= CAKE_QUEUES) 1776 *flow = TC_H_MIN(res.classid); 1777 if (TC_H_MAJ(res.classid) <= (CAKE_QUEUES << 16)) 1778 *host = TC_H_MAJ(res.classid) >> 16; 1779 } 1780 return false; 1781 } 1782 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki