[cxl:for-6.5/dcd-preview 10/15] drivers/cxl/core/port.c:316:6: error: use of undeclared identifier 'dev_attr_create_dc_region'

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git for-6.5/dcd-preview
head:   f425bc34c600e2a3721d6560202962ec41622815
commit: 5d722120a10d7263de3f874708cf795ca34c9c0c [10/15] cxl/region: Add dynamic capacity cxl region support.
config: i386-randconfig-a004 (https://download.01.org/0day-ci/archive/20230409/202304092230.dloBfRE5-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git/commit/?id=5d722120a10d7263de3f874708cf795ca34c9c0c
        git remote add cxl https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git
        git fetch --no-tags cxl for-6.5/dcd-preview
        git checkout 5d722120a10d7263de3f874708cf795ca34c9c0c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304092230.dloBfRE5-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/cxl/core/port.c:316:6: error: use of undeclared identifier 'dev_attr_create_dc_region'
                                   &dev_attr_create_dc_region.attr, NULL)) {
                                    ^
   1 error generated.


vim +/dev_attr_create_dc_region +316 drivers/cxl/core/port.c

   305	
   306	int add_dc_region_attribute(struct device *dev, void *data)
   307	{
   308		struct cxl_root_decoder *cxlrd;
   309	
   310		if (!is_root_decoder(dev))
   311			return 0;
   312	
   313		cxlrd = to_cxl_root_decoder(dev);
   314		if (!cxlrd->dc_sysfs_initialized) {
   315			if (sysfs_add_file_to_group(&dev->kobj,
 > 316					&dev_attr_create_dc_region.attr, NULL)) {
   317				dev_err(dev, "Failed to create_dc_region file\n");
   318				cxlrd->dc_sysfs_initialized = true;
   319				return 1;
   320			}
   321		}
   322	
   323		return 0;
   324	}
   325	EXPORT_SYMBOL_NS_GPL(add_dc_region_attribute, CXL);
   326	

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