From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 59EC3C432C0 for ; Mon, 25 Nov 2019 06:37:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 37E8D2071E for ; Mon, 25 Nov 2019 06:37:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725930AbfKYGh3 (ORCPT ); Mon, 25 Nov 2019 01:37:29 -0500 Received: from mga06.intel.com ([134.134.136.31]:27907 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725747AbfKYGh2 (ORCPT ); Mon, 25 Nov 2019 01:37:28 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Nov 2019 22:37:27 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,240,1571727600"; d="scan'208";a="233304453" Received: from lkp-server01.sh.intel.com (HELO lkp-server01) ([10.239.97.150]) by fmsmga004.fm.intel.com with ESMTP; 24 Nov 2019 22:37:26 -0800 Received: from kbuild by lkp-server01 with local (Exim 4.89) (envelope-from ) id 1iZ7zx-0002qo-Ob; Mon, 25 Nov 2019 14:37:25 +0800 Date: Mon, 25 Nov 2019 14:36:40 +0800 From: kbuild test robot To: Scott Cheloha Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , Greg Kroah-Hartman , David Hildenbrand , nathanl@linux.ibm.com, ricklind@linux.vnet.ibm.com, Scott Cheloha Subject: Re: [PATCH v2] drivers/base/memory.c: cache blocks in radix tree to accelerate lookup Message-ID: <201911251315.iroYiVrK%lkp@intel.com> References: <20191121195952.3728-1-cheloha@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191121195952.3728-1-cheloha@linux.vnet.ibm.com> X-Patchwork-Hint: ignore User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Scott, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on driver-core/driver-core-testing] [also build test WARNING on v5.4] [cannot apply to next-20191122] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Scott-Cheloha/drivers-base-memory-c-cache-blocks-in-radix-tree-to-accelerate-lookup/20191124-104557 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git 0e4a459f56c32d3e52ae69a4b447db2f48a65f44 reproduce: # apt-get install sparse # sparse version: v0.6.1-36-g9305d48-dirty make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot sparse warnings: (new ones prefixed by >>) >> drivers/base/memory.c:874:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] > drivers/base/memory.c:874:9: sparse: expected void **slot >> drivers/base/memory.c:874:9: sparse: got void [noderef] ** >> drivers/base/memory.c:874:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] > drivers/base/memory.c:874:9: sparse: expected void **slot >> drivers/base/memory.c:874:9: sparse: got void [noderef] ** >> drivers/base/memory.c:877:45: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] **slot @@ got n:4> **slot @@ >> drivers/base/memory.c:877:45: sparse: expected void [noderef] **slot >> drivers/base/memory.c:877:45: sparse: got void **slot drivers/base/memory.c:874:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] **slot @@ got n:4> **slot @@ drivers/base/memory.c:874:9: sparse: expected void [noderef] **slot drivers/base/memory.c:874:9: sparse: got void **slot >> drivers/base/memory.c:874:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] > drivers/base/memory.c:874:9: sparse: expected void **slot >> drivers/base/memory.c:874:9: sparse: got void [noderef] ** vim +874 drivers/base/memory.c 845 846 /** 847 * walk_memory_blocks - walk through all present memory blocks overlapped 848 * by the range [start, start + size) 849 * 850 * @start: start address of the memory range 851 * @size: size of the memory range 852 * @arg: argument passed to func 853 * @func: callback for each memory section walked 854 * 855 * This function walks through all present memory blocks overlapped by the 856 * range [start, start + size), calling func on each memory block. 857 * 858 * In case func() returns an error, walking is aborted and the error is 859 * returned. 860 */ 861 int walk_memory_blocks(unsigned long start, unsigned long size, 862 void *arg, walk_memory_blocks_func_t func) 863 { 864 struct radix_tree_iter iter; 865 const unsigned long start_block_id = phys_to_block_id(start); 866 const unsigned long end_block_id = phys_to_block_id(start + size - 1); 867 struct memory_block *mem; 868 void **slot; 869 int ret = 0; 870 871 if (!size) 872 return 0; 873 > 874 radix_tree_for_each_slot(slot, &memory_blocks, &iter, start_block_id) { 875 if (iter.index > end_block_id) 876 break; > 877 mem = radix_tree_deref_slot(slot); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation