From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (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 4F55E13B293; Tue, 17 Feb 2026 05:24:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771305858; cv=none; b=SD1kXWvWTZrnKC70puwZsbqs3ZhkeLov0MspbpyKfRWtl7WzYErbLsvOXJHSD2a5EK5If8E1brJ0F1lM5jUyF+TTQkYwvHAded3nQLs514+rG76PZuiw1pkTp8TQTzZ+S5z2lutEjX5fQ2tJ8ksTxzHdW+HEsbLvYMyx0WYD8Rs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771305858; c=relaxed/simple; bh=xnzvI0dvY1F6SzS6tkE5JdjTYwIWYLKs5Ofc48sGVdA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uxAnSE6MKWdACM0o+giDX1Es9tfYymyAmukMONqcNejatCa23UAnz8eys4M+UpGTbg4PnMYIlEXJJerfIOJyVC1vhm/wlDp/62I3rXWk88N5t6PxEmlfpR45PR9ZDphBkDyeD1U3B/AIRZIU113VDP/H526H6815VnO3d5Nh/cc= 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=cqUHBRWI; arc=none smtp.client-ip=192.198.163.17 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="cqUHBRWI" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1771305857; x=1802841857; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=xnzvI0dvY1F6SzS6tkE5JdjTYwIWYLKs5Ofc48sGVdA=; b=cqUHBRWIwFMth5YZgu/vEncNfPXq3aKmxyL4jal3FnE7DChJjetLsRmA 1jTx/EFvoMqvzMyyAVGywHaTNZm39i0FOYKWJSG9HS8zj99rrCjwz+sbc VzMwbHLWT51XPzhsiWHOH54nvuPFvaPyuGI2gcRb5JJYh55aPOiGQp4YZ BRjiRwhmS7Oxm/p22t5Je/AWkPEQOJS5cNDfL/QnO0G2oL6Rqm4w1orcQ LcCgtpQaD747NHSMMnu5iTYOn48xXwkI+xKHR/xQ5TroToW8wzliR2YAA d0/dDMEkkyNyg5TEheVpmLfy6rAU1V7RV8AMm8DHhBL6MefjFsiAbDWOT Q==; X-CSE-ConnectionGUID: /2O2lvHHS168sZ0zOAKVyA== X-CSE-MsgGUID: xdX3OfQrSmqQDlgOxNRxuQ== X-IronPort-AV: E=McAfee;i="6800,10657,11703"; a="72279700" X-IronPort-AV: E=Sophos;i="6.21,295,1763452800"; d="scan'208";a="72279700" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Feb 2026 21:24:17 -0800 X-CSE-ConnectionGUID: +RfV6L2hToyQWGU8Gz6V9w== X-CSE-MsgGUID: mkNANzXsT9ydo831Z9v36A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,295,1763452800"; d="scan'208";a="212869103" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by orviesa006.jf.intel.com with ESMTP; 16 Feb 2026 21:24:15 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vsDZE-000000010do-3W9j; Tue, 17 Feb 2026 05:24:12 +0000 Date: Tue, 17 Feb 2026 13:24:03 +0800 From: kernel test robot To: Pavel Begunkov , io-uring@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, asml.silence@gmail.com, bpf@vger.kernel.org, axboe@kernel.dk, Alexei Starovoitov Subject: Re: [PATCH v7 2/5] io_uring/bpf-ops: implement loop_step with BPF struct_ops Message-ID: <202602171315.iJKYSSFe-lkp@intel.com> References: Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Hi Pavel, kernel test robot noticed the following build warnings: [auto build test WARNING on axboe/for-next] [also build test WARNING on linus/master next-20260216] [cannot apply to shuah-kselftest/next shuah-kselftest/fixes v6.19] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Pavel-Begunkov/io_uring-introduce-callback-driven-main-loop/20260217-005705 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git for-next patch link: https://lore.kernel.org/r/ec7d21e6e16c49165fa1e8af2aa09d01c111ea97.1771260487.git.asml.silence%40gmail.com patch subject: [PATCH v7 2/5] io_uring/bpf-ops: implement loop_step with BPF struct_ops config: parisc-randconfig-r071-20260217 (https://download.01.org/0day-ci/archive/20260217/202602171315.iJKYSSFe-lkp@intel.com/config) compiler: hppa-linux-gcc (GCC) 8.5.0 smatch version: v0.5.0-8994-gd50c5a4c 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/202602171315.iJKYSSFe-lkp@intel.com/ smatch warnings: io_uring/bpf-ops.c:45 bpf_io_btf_struct_access() warn: always true condition '(off >= $expr_0x7fb415932650(30)) => (s32min-s32max >= 0)' vim +45 io_uring/bpf-ops.c 37 38 static int bpf_io_btf_struct_access(struct bpf_verifier_log *log, 39 const struct bpf_reg_state *reg, int off, 40 int size) 41 { 42 const struct btf_type *t = btf_type_by_id(reg->btf, reg->btf_id); 43 44 if (t == loop_params_type) { > 45 if (off >= offsetof(struct iou_loop_params, cq_wait_idx) && 46 off + size <= offsetofend(struct iou_loop_params, cq_wait_idx)) 47 return SCALAR_VALUE; 48 } 49 50 return -EACCES; 51 } 52 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki