linux-kernel - Re: [PATCH v5 6/7] dax/hmem, cxl: Defer and resolve ownership of Soft Reserved memory ranges

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Message-ID: <202601221448.OYyjVxEC-lkp@intel.com>
Date: Thu, 22 Jan 2026 14:40:07 +0100
From: kernel test robot <lkp@...el.com>
To: Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>,
	linux-cxl@...r.kernel.org, linux-kernel@...r.kernel.org,
	nvdimm@...ts.linux.dev, linux-fsdevel@...r.kernel.org,
	linux-pm@...r.kernel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	Ard Biesheuvel <ardb@...nel.org>,
	Alison Schofield <alison.schofield@...el.com>,
	Vishal Verma <vishal.l.verma@...el.com>,
	Ira Weiny <ira.weiny@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Jonathan Cameron <jonathan.cameron@...wei.com>,
	Yazen Ghannam <yazen.ghannam@....com>,
	Dave Jiang <dave.jiang@...el.com>,
	Davidlohr Bueso <dave@...olabs.net>,
	Matthew Wilcox <willy@...radead.org>, Jan Kara <jack@...e.cz>,
	"Rafael J . Wysocki" <rafael@...nel.org>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@...nel.org>,
	Li Ming <ming.li@...omail.com>,
	Jeff Johnson <jeff.johnson@....qualcomm.com>,
	Ying Huang <huang.ying.caritas@...il.com>,
	Yao Xingtao <yaoxt.fnst@...itsu.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Nathan Fontenot <nathan.fontenot@....com>,
	Terry Bowman <terry.bowman@....com>,
	Robert Richter <rrichter@....com>,
	Benjamin Cheatham <benjamin.cheatham@....com>,
	Zhijian Li <lizhijian@...itsu.com>
Subject: Re: [PATCH v5 6/7] dax/hmem, cxl: Defer and resolve ownership of
 Soft Reserved memory ranges

Hi Smita,

kernel test robot noticed the following build errors:

[auto build test ERROR on bc62f5b308cbdedf29132fe96e9d591e526527e1]

url:    https://github.com/intel-lab-lkp/linux/commits/Smita-Koralahalli/dax-hmem-Request-cxl_acpi-and-cxl_pci-before-walking-Soft-Reserved-ranges/20260122-130032
base:   bc62f5b308cbdedf29132fe96e9d591e526527e1
patch link:    https://lore.kernel.org/r/20260122045543.218194-7-Smita.KoralahalliChannabasappa%40amd.com
patch subject: [PATCH v5 6/7] dax/hmem, cxl: Defer and resolve ownership of Soft Reserved memory ranges
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20260122/202601221448.OYyjVxEC-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/20260122/202601221448.OYyjVxEC-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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601221448.OYyjVxEC-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "cxl_bus_type" [drivers/dax/hmem/dax_hmem.ko] undefined!

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki