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CY5PR11MB6341 X-OriginatorOrg: intel.com On Wed, May 20, 2026 at 08:14:43AM +0800, kernel test robot wrote: > Hi Tomasz, > > kernel test robot noticed the following build errors: > > [auto build test ERROR on cxl/next] > [also build test ERROR on linus/master v7.1-rc4 next-20260519] > [cannot apply to cxl/pending] > [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/Tomasz-Wolski/dax-bus-Upgrade-resource-conflict-message-to-dev_err-in-alloc_dax_region/20260519-182401 > base: https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git next > patch link: https://lore.kernel.org/r/20260519101832.31988-1-tomasz.wolski%40fujitsu.com > patch subject: [PATCH v2] dax/bus: Upgrade resource conflict message to dev_err() in alloc_dax_region() > config: s390-randconfig-r072-20260520 (https://download.01.org/0day-ci/archive/20260520/202605200842.i0s39151-lkp@intel.com/config) > compiler: s390-linux-gcc (GCC) 9.5.0 > smatch: v0.5.0-9185-gbcc58b9c > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260520/202605200842.i0s39151-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/202605200842.i0s39151-lkp@intel.com/ > > All errors (new ones prefixed by >>, old ones prefixed by <<): > > >> ERROR: modpost: "request_resource_conflict" [drivers/dax/dax.ko] undefined! > Sorry Tomasz - I thought request_resource_conflict() looked sweet, but apparently it's only available to built-in kernel code and not to modules. I'd probably try a prep patch exporting it, based on looking at its kernel doc comment and neighbots in kernel/resource.c that are exported. -- Alison > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki >