From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) (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 776DA2DE200; Thu, 8 Jan 2026 17:56:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767894980; cv=none; b=COowdNqhd/9cfonSTFxBDURRccvuLSzmHp7Mn3koC5896Hvm+FbvrfyYQ3u7exTyt3SX53F4yaYzGq94px3Mx/AZE0aoo8H2Z+vT73bZRX8hiXkNUXuH35AV0i05VcwhaUhKjDGl8+M4hs3yPUW5toL+aE32XyRwlhqd2Y06wu8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767894980; c=relaxed/simple; bh=fVFKoDSGtu/m8fcssWWh1M0gKpmCnRC4+ap+lVdeYB0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=W1dwzscvd2qY1zkDo4WYt7AbsrxyHeZan4K3rD89YZOjlMy5qZ5/+yLLyTKPPuURbJcp1m6pj8klqBfd8thWteIJkqVLZjPN/OHNk8PsY8vfWqqicBr4s8Cl3PrTqtR4E+eI6c/DrsVC1w6yLznYAqqaLIUhfM8RurR7wzYTbks= 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=cuoOgmof; arc=none smtp.client-ip=198.175.65.10 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="cuoOgmof" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1767894979; x=1799430979; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=fVFKoDSGtu/m8fcssWWh1M0gKpmCnRC4+ap+lVdeYB0=; b=cuoOgmofuMOssEpyvh8W/eYGO2Kw8tHj3H8N9qon5YGlrNBOoujMC3xt OuWr8AVGcHSm0XQBEj5MORMRdxlmi+s9kxhjbBF+Rkhxru+sULETDTFyI uhKOINJSq5WCfCLVRufqAIwbdrOHFYNQJ2+R2A9FQHMo90V9LX3+4dRpX fpVm2ChAkMWbSRd7vVSvyOiQflVBDSncBfL+o/t7dkQ6nGz4uM+31Axfk vhyCKy4X3AqMyEjZYlgczf7BItXRi/gFqr2CeIKVbo651f3K0VtcSL5ZC 0zgbk8WdmS6SOD/o9MHKAEQUKJtzinlK9MAsiqFbODOqO4UAg6FHzttWa A==; X-CSE-ConnectionGUID: TF4N3eEAQVGrv3uGTW47vA== X-CSE-MsgGUID: VcGdbxvZTAmzotOt1V1MtQ== X-IronPort-AV: E=McAfee;i="6800,10657,11665"; a="86695398" X-IronPort-AV: E=Sophos;i="6.21,211,1763452800"; d="scan'208";a="86695398" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jan 2026 09:56:19 -0800 X-CSE-ConnectionGUID: 09hYryXbTDywVNcrXWvL1A== X-CSE-MsgGUID: BFN3ZKRIRLapNvoSYo54WA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,211,1763452800"; d="scan'208";a="203285622" Received: from igk-lkp-server01.igk.intel.com (HELO 92b2e8bd97aa) ([10.211.93.152]) by orviesa007.jf.intel.com with ESMTP; 08 Jan 2026 09:56:11 -0800 Received: from kbuild by 92b2e8bd97aa with local (Exim 4.98.2) (envelope-from ) id 1vduEz-000000001pc-1EmA; Thu, 08 Jan 2026 17:56:09 +0000 Date: Thu, 8 Jan 2026 18:55:54 +0100 From: kernel test robot To: John Groves , Miklos Szeredi , Dan Williams , Bernd Schubert , Alison Schofield Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Jonathan Corbet , Vishal Verma , Dave Jiang , Matthew Wilcox , Jan Kara , Alexander Viro , David Hildenbrand , Christian Brauner , "Darrick J . Wong" , Randy Dunlap , Jeff Layton , Amir Goldstein , Jonathan Cameron , Stefan Hajnoczi , Joanne Koong , Josef Bacik , Bagas Sanjaya , Chen Linxuan , James Morse , Fuad Tabba , Sean Christopherson , Shivank Garg , Ackerley Tng , Gregory Price , Aravind Ramesh Subject: Re: [PATCH V3 04/21] dax: Add dax_operations for use by fs-dax on fsdev dax Message-ID: <202601081822.Ww7CSgov-lkp@intel.com> References: <20260107153332.64727-5-john@groves.net> 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: <20260107153332.64727-5-john@groves.net> Hi John, kernel test robot noticed the following build errors: [auto build test ERROR on brauner-vfs/vfs.all] [also build test ERROR on linus/master v6.19-rc4 next-20260108] [cannot apply to mszeredi-fuse/for-next] [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/John-Groves/dax-add-fsdev-c-driver-for-fs-dax-on-character-dax/20260108-013232 base: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git vfs.all patch link: https://lore.kernel.org/r/20260107153332.64727-5-john%40groves.net patch subject: [PATCH V3 04/21] dax: Add dax_operations for use by fs-dax on fsdev dax config: x86_64-kexec (https://download.01.org/0day-ci/archive/20260108/202601081822.Ww7CSgov-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260108/202601081822.Ww7CSgov-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/202601081822.Ww7CSgov-lkp@intel.com/ All errors (new ones prefixed by >>): >> drivers/dax/fsdev.c:97:9: error: call to undeclared function '_copy_from_iter_flushcache'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 97 | return _copy_from_iter_flushcache(addr, bytes, i); | ^ drivers/dax/fsdev.c:97:9: note: did you mean '__copy_from_user_flushcache'? arch/x86/include/asm/uaccess_64.h:166:1: note: '__copy_from_user_flushcache' declared here 166 | __copy_from_user_flushcache(void *dst, const void __user *src, unsigned size) | ^ 1 error generated. vim +/_copy_from_iter_flushcache +97 drivers/dax/fsdev.c 93 94 static size_t fsdev_dax_recovery_write(struct dax_device *dax_dev, pgoff_t pgoff, 95 void *addr, size_t bytes, struct iov_iter *i) 96 { > 97 return _copy_from_iter_flushcache(addr, bytes, i); 98 } 99 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki