From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.17]) (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 522D537C107; Mon, 13 Apr 2026 08:30:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776069034; cv=none; b=QGqmvdLkdFC7oiTJDkZipwXFld3OmQVDUCyRyxtzL7Nh3f5xGvna9UBTeubXwgIykpgltm5cfNkqE8NGc/pl/Y5mTa40Oxl8VCoEHVcZgVOauU05FvMe2XFmqtJmY5DViUHQ+wlkwK2idMBtAGRDRRL3ShpbH8X6vx/2wEZkyvg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776069034; c=relaxed/simple; bh=basOywsiI3wh3nikVgiIweTGNU00sqZdqSpyaZlVRDk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=AvwhVgO9s0YcsR3/AYgGlAPWu9kZXxUqHZSEXCz/MtqKMH+gNLP4p0lL6WLMmYCZKIS0UXSO90Y7ymWdoLDCdzNRTYPnXyEbEg67Xs8iHX08JTynT+hAinrOUGdf7GKmx9dtyzrOCIbMK3JDEozNkp8C+Nf9JRWtxoF+gSrfSjk= 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=I6qHjeuc; arc=none smtp.client-ip=198.175.65.17 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="I6qHjeuc" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1776069033; x=1807605033; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=basOywsiI3wh3nikVgiIweTGNU00sqZdqSpyaZlVRDk=; b=I6qHjeucVp5PtuWY0luEeZk9RNAK9f/87VvCqb/uQqtP7FkgLVaq2pIi LnoPK6Ig6Td8fmvqkIWjiQXajFAWFVVXqtWIIIgmrZbh/Ua7Ai422meNK YrwqGrijYCpMkKdKo9UOSCygtGQ6TL7uw022BaDbvmBwp3+sf+j0xU8A3 qBl2QkbGCRcRImzW+34HHvMf4LFbZvfi6X+JId3VGp6IdAP1QNaJQWytI BCUZKG4hBJQDA4lV13d/CQ+rqEEAeJCGXe9IZAJWwGSy60QHQO2DRNCPY FrNOFK+C+71TeqbpG0WWw2vKuxZI06ng813H/6EvjVxlgguSnHTR+UY/P A==; X-CSE-ConnectionGUID: xhYxFpVNQryJAUx/pXye+A== X-CSE-MsgGUID: XFKe/P2eRg+F2yRlrykWnA== X-IronPort-AV: E=McAfee;i="6800,10657,11757"; a="76959704" X-IronPort-AV: E=Sophos;i="6.23,176,1770624000"; d="scan'208";a="76959704" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Apr 2026 01:30:33 -0700 X-CSE-ConnectionGUID: 1bgjYVYYSfuoredBAXI95A== X-CSE-MsgGUID: hDEnkYcgRTeTGqeTTd/4Tg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,176,1770624000"; d="scan'208";a="260167796" Received: from lkp-server01.sh.intel.com (HELO 7b0b59b3a0d4) ([10.239.97.150]) by orviesa002.jf.intel.com with ESMTP; 13 Apr 2026 01:30:32 -0700 Received: from kbuild by 7b0b59b3a0d4 with local (Exim 4.98.2) (envelope-from ) id 1wCCgb-000000000DD-2uUe; Mon, 13 Apr 2026 08:30:27 +0000 Date: Mon, 13 Apr 2026 16:29:27 +0800 From: kernel test robot To: Kefeng Wang Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: Re: [PATCH RFC] fs: drop_caches: introduce per-node drop_caches interface Message-ID: <202604130943.MLP9ZgAQ-lkp@intel.com> References: <20260409063503.3475420-1-wangkefeng.wang@huawei.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: <20260409063503.3475420-1-wangkefeng.wang@huawei.com> Hi Kefeng, [This is a private test report for your RFC patch.] kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on brauner-vfs/vfs.all driver-core/driver-core-testing driver-core/driver-core-next driver-core/driver-core-linus linus/master v7.0-rc7 next-20260410] [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/Kefeng-Wang/fs-drop_caches-introduce-per-node-drop_caches-interface/20260412-192452 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20260409063503.3475420-1-wangkefeng.wang%40huawei.com patch subject: [PATCH RFC] fs: drop_caches: introduce per-node drop_caches interface config: powerpc64-randconfig-002-20260413 (https://download.01.org/0day-ci/archive/20260413/202604130943.MLP9ZgAQ-lkp@intel.com/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260413/202604130943.MLP9ZgAQ-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/202604130943.MLP9ZgAQ-lkp@intel.com/ All errors (new ones prefixed by >>): >> fs/drop_caches.c:148:5: error: redefinition of 'drop_caches_register_node' 148 | int drop_caches_register_node(struct node *node) | ^ include/linux/fs.h:3661:19: note: previous definition is here 3661 | static inline int drop_caches_register_node(struct node *node) { return 0; } | ^ >> fs/drop_caches.c:153:6: error: redefinition of 'drop_caches_unregister_node' 153 | void drop_caches_unregister_node(struct node *node) | ^ include/linux/fs.h:3662:20: note: previous definition is here 3662 | static inline void drop_caches_unregister_node(struct node *node) {} | ^ 2 errors generated. vim +/drop_caches_register_node +148 fs/drop_caches.c 146 147 static DEVICE_ATTR_WO(drop_caches); > 148 int drop_caches_register_node(struct node *node) 149 { 150 return device_create_file(&node->dev, &dev_attr_drop_caches); 151 } 152 > 153 void drop_caches_unregister_node(struct node *node) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki