[morse:mpam/snapshot/v5.16 4/137] arch/x86/kernel/cpu/resctrl/core.c:417:6: warning: no previous prototype for 'domain_free'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/snapshot/v5.16
head:   364c1c42b229912132e1615c2ce15be7154e2156
commit: 22965510f006f9207f1615ffb3543c9314ac6d01 [4/137] x86/resctrl: Group struct rdt_hw_domain cleanup
config: i386-randconfig-m021-20220124 (https://download.01.org/0day-ci/archive/20220126/202201260142.TfzTxnA2-lkp@xxxxxxxxx/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git/commit/?id=22965510f006f9207f1615ffb3543c9314ac6d01
        git remote add morse https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git
        git fetch --no-tags morse mpam/snapshot/v5.16
        git checkout 22965510f006f9207f1615ffb3543c9314ac6d01
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kernel/cpu/resctrl/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/cpu/resctrl/core.c:417:6: warning: no previous prototype for 'domain_free' [-Wmissing-prototypes]
     417 | void domain_free(struct rdt_hw_domain *hw_dom)
         |      ^~~~~~~~~~~


vim +/domain_free +417 arch/x86/kernel/cpu/resctrl/core.c

   416	
 > 417	void domain_free(struct rdt_hw_domain *hw_dom)
   418	{
   419		kfree(hw_dom->ctrl_val);
   420		kfree(hw_dom->mbps_val);
   421		kfree(hw_dom);
   422	}
   423	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx