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

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Date:   Wed, 26 Jan 2022 03:17:46 +0800
From:   kernel test robot <lkp@...el.com>
To:     James Morse <james.morse@....com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [morse:mpam/snapshot/v5.16 9/137]
 arch/x86/kernel/cpu/resctrl/core.c:400:6: warning: no previous prototype for
 'setup_default_ctrlval'

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-m021-20220124 (https://download.01.org/0day-ci/archive/20220126/202201260259.D09DY2rL-lkp@intel.com/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=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
        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@...el.com>

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/cpu/resctrl/core.c:400:6: warning: no previous prototype for 'setup_default_ctrlval' [-Wmissing-prototypes]
     400 | void setup_default_ctrlval(struct rdt_resource *r, u32 *dc)
         |      ^~~~~~~~~~~~~~~~~~~~~
   arch/x86/kernel/cpu/resctrl/core.c:414:6: warning: no previous prototype for 'domain_free' [-Wmissing-prototypes]
     414 | void domain_free(struct rdt_hw_domain *hw_dom)
         |      ^~~~~~~~~~~


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
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org