[djiang:cxl-hmem-report 12/13] drivers/cxl/core/cdat.c:627:9: error: call to undeclared function 'hmat_update_target_coordinates'; ISO C99 and later do not support implicit function declarations

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/djiang/linux.git cxl-hmem-report
head:   b720bb8edd5a52abe7d5c888245352e3dbaefdb1
commit: b278f4f522cb92b95bad61cbd30324f94eaf778c [12/13] cxl: Add memory hotplug notifier for cxl region
config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20240120/202401200653.z2X2MAO4-lkp@intel.com/config)
compiler: clang version 18.0.0git (https://github.com/llvm/llvm-project d92ce344bf641e6bb025b41b3f1a77dd25e2b3e9)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240120/202401200653.z2X2MAO4-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401200653.z2X2MAO4-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/cxl/core/cdat.c:627:9: error: call to undeclared function 'hmat_update_target_coordinates'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     627 |         return hmat_update_target_coordinates(nid, &cxlr->coord[access], access);
         |                ^
   1 error generated.


vim +/hmat_update_target_coordinates +627 drivers/cxl/core/cdat.c

   623	
   624	int cxl_update_hmat_access_coordinates(int nid, struct cxl_region *cxlr,
   625					       enum access_coordinate_class access)
   626	{
 > 627		return hmat_update_target_coordinates(nid, &cxlr->coord[access], access);

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