From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) (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 8819735E929; Fri, 31 Jul 2026 05:56:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.7 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785477419; cv=none; b=H8kKYXKWQJ4dB0+GPEuTJjifXW2jrI3ex6pY6mZkKlFAFYzumEbeSOHDZyk1g5Z8zP7HLpFU7r+p2zk5/Xq0bUlgPxr1I61zdANjmTm0trFoH6nTo/J+iOZDwpOulPw89XAeyODcjPoMOt69ZXPh1DI1nphnaPeUYBT+sae79DY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785477419; c=relaxed/simple; bh=AljTJV5Ws9V+g5P206WN8LT515CPMgr8kwITomUc758=; h=Date:From:To:Cc:Subject:Message-ID; b=tik2TMRTaduRUrcgWa77MHHKjpYz9uD2b5TJCEYXN1zpoDUgK7F/T5L8zqw2MQePrIGgMyWAF/5Dow9I9LIa/V0jdFBb1GmH4WTKm7JedzW/9CbryjwXRniKBVCqowbnTH5bAmM3HCmIsC9FpLhjHIHJh2QYBRPM42enxitNq7Q= 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=AMlOMK/p; arc=none smtp.client-ip=192.198.163.7 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="AMlOMK/p" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1785477417; x=1817013417; h=date:from:to:cc:subject:message-id; bh=AljTJV5Ws9V+g5P206WN8LT515CPMgr8kwITomUc758=; b=AMlOMK/pMzMfNhyKbNNZHPXRNCyctPTLGYsAtbrq9VlIlGtjSK8yvBT8 fV+uVcYM1lNxycjGgZw1MXz/yej0IWEMAc/x/g172LIJYf1uU34a58Q57 8KIEEMHSOioBuAYbvnfm8pXf6JxddB8n9mKZOnDeDFhlDiYjRxc/mDoBR Fyl7HiDL9bYLbkG5iIpQwj4fQ5G3o1f9O2rCQJjOLe1vzA4TRUdG338Fs cliwozBZC04RnwsDBBdagQg4e1nGJFbefJ0zilpP2EyfRAXQnFS+YrpGT zNaYG1uA/bUAMQAHpd6ccXgzeV7zbDVRrueAkoRZNtmOllp+iLm6sUtj9 g==; X-CSE-ConnectionGUID: 72bxKe7QREu4lHZwuVvPtQ== X-CSE-MsgGUID: nV6Lrfr7Rre2k4CL1KM+ww== X-IronPort-AV: E=McAfee;i="6800,10657,11860"; a="111647033" X-IronPort-AV: E=Sophos;i="6.25,195,1779174000"; d="scan'208";a="111647033" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jul 2026 22:56:57 -0700 X-CSE-ConnectionGUID: jeBKPaPOSpqb/kUVM/qHNQ== X-CSE-MsgGUID: DB7ke7KZRFOB/R2hoCNeGw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,195,1779174000"; d="scan'208";a="258705009" Received: from igk-lkp-server01.igk.intel.com (HELO 3cba2a188a06) ([10.211.93.152]) by orviesa006.jf.intel.com with ESMTP; 30 Jul 2026 22:56:56 -0700 Received: from kbuild by 3cba2a188a06 with local (Exim 4.98.2) (envelope-from ) id 1wpgEn-000000002WY-1Yzv; Fri, 31 Jul 2026 05:56:53 +0000 Date: Fri, 31 Jul 2026 07:56:52 +0200 From: kernel test robot To: Luis Chamberlain Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: [mcgrof:blk-iobuf-pool-v5-premap-iova 12/14] Warning: block/blk-mq-dma.c:235 cannot understand function prototype: '/* * Premapped path: the buffer is persistently DMA-mapped as one contiguous IOVA * (dma_iova_*), so hand the whole mapping to the iterator as a single segment * instead of allocati... Message-ID: <202607310722.zfznlplf-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git blk-iobuf-pool-v5-premap-iova head: 912328a605c4767433d483436a2d592d06063095 commit: ca011e66fdccef93bc916c7cf32323ad7b6fe2e2 [12/14] block, io_uring: premap a pool buffer to exceed the dma_opt clamp config: x86_64-kexec (https://download.01.org/0day-ci/archive/20260731/202607310722.zfznlplf-lkp@intel.com/config) compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260731/202607310722.zfznlplf-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/202607310722.zfznlplf-lkp@intel.com/ All warnings (new ones prefixed by >>): >> Warning: block/blk-mq-dma.c:235 cannot understand function prototype: '/* * Premapped path: the buffer is persistently DMA-mapped as one contiguous IOVA * (dma_iova_*), so hand the whole mapping to the iterator as a single segment * instead of allocating an IOVA per I/O. This is what lets a premapped request * exceed the dma_opt_mapping_size() clamp folded into max_hw_sectors. The * completion path must NOT unmap it (see nvme_unmap_data). * * NOTE: this emits the mapping from its start, i.e. it assumes the request * covers the buffer from offset 0. The whole-buffer fixed-buffer command path * used by the pool selftest satisfies that; an arbitrary buffer offset needs' Warning: block/blk-mq-dma.c:430 Excess function parameter 'state' description in 'blk_rq_integrity_dma_map_iter_next' Warning: block/blk-mq-dma.c:430 Excess function parameter 'state' description in 'blk_rq_integrity_dma_map_iter_next' -- Warning: block/blk-map.c:366 Excess function parameter 'op' description in 'bio_copy_kern' >> Warning: block/blk-map.c:516 function parameter 'opts' not described in 'blk_rq_map_user_iov_opts' >> Warning: block/blk-map.c:516 expecting prototype for blk_rq_map_user_iov(). Prototype was for blk_rq_map_user_iov_opts() instead Warning: block/blk-map.c:366 Excess function parameter 'op' description in 'bio_copy_kern' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki