[morse:mpam/snapshot/v5.16 9/137] arch/x86/kernel/cpu/resctrl/core.c:400:6: warning: no previous prototype for function 'setup_default_ctrlval'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/snapshot/v5.16
head:   364c1c42b229912132e1615c2ce15be7154e2156
commit: 1763d5f108c2b9e4fd2e055884b8e290b75fa5f0 [9/137] x86/resctrl: Remove architecture copy of mbps_val
config: i386-randconfig-a011-20220124 (https://download.01.org/0day-ci/archive/20220126/202201261106.qSo1MG6L-lkp@xxxxxxxxx/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 997e128e2a78f5a5434fc75997441ae1ee76f8a4)
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/morse/linux.git/commit/?id=1763d5f108c2b9e4fd2e055884b8e290b75fa5f0
        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 1763d5f108c2b9e4fd2e055884b8e290b75fa5f0
        # save the config file to linux build tree
        mkdir build_dir
        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 as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/cpu/resctrl/core.c:400:6: warning: no previous prototype for function 'setup_default_ctrlval' [-Wmissing-prototypes]
   void setup_default_ctrlval(struct rdt_resource *r, u32 *dc)
        ^
   arch/x86/kernel/cpu/resctrl/core.c:400:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void setup_default_ctrlval(struct rdt_resource *r, u32 *dc)
   ^
   static 
   arch/x86/kernel/cpu/resctrl/core.c:414:6: warning: no previous prototype for function 'domain_free' [-Wmissing-prototypes]
   void domain_free(struct rdt_hw_domain *hw_dom)
        ^
   arch/x86/kernel/cpu/resctrl/core.c:414:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void domain_free(struct rdt_hw_domain *hw_dom)
   ^
   static 
   2 warnings generated.


vim +/setup_default_ctrlval +400 arch/x86/kernel/cpu/resctrl/core.c

   399	
 > 400	void setup_default_ctrlval(struct rdt_resource *r, u32 *dc)
   401	{
   402		struct rdt_hw_resource *hw_res = resctrl_to_arch_res(r);
   403		int i;
   404	
   405		/*
   406		 * Initialize the Control MSRs to having no control.
   407		 * For Cache Allocation: Set all bits in cbm
   408		 * For Memory Allocation: Set b/w requested to 100%
   409		 */
   410		for (i = 0; i < hw_res->num_closid; i++, dc++)
   411			*dc = r->default_ctrl;
   412	}
   413	

---
0-DAY CI Kernel Test Service, Intel Corporation
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