linux-kernel - [morse:mpam/snapshot/v5.15 9/139] arch/x86/kernel/cpu/resctrl/core.c:400:6: warning: no previous prototype for function 'setup_default

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Message-ID: <202111130902.eirM7D6Z-lkp@intel.com>
Date:   Sat, 13 Nov 2021 09:47:10 +0800
From:   kernel test robot <lkp@...el.com>
To:     James Morse <james.morse@....com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [morse:mpam/snapshot/v5.15 9/139]
 arch/x86/kernel/cpu/resctrl/core.c:400:6: warning: no previous prototype for
 function 'setup_default_ctrlval'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/snapshot/v5.15
head:   ce3629841262f725a5f3a327403fcaf0e604a85e
commit: c40ac46dd98eac3ed1ab60d72d54344a4ead0e92 [9/139] x86/resctrl: Remove architecture copy of mbps_val
config: x86_64-buildonly-randconfig-r001-20211112 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c3dddeeafb529e769cde87bd29ef6271ac6bfa5c)
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=c40ac46dd98eac3ed1ab60d72d54344a4ead0e92
        git remote add morse https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git
        git fetch --no-tags morse mpam/snapshot/v5.15
        git checkout c40ac46dd98eac3ed1ab60d72d54344a4ead0e92
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64 

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

Download attachment ".config.gz" of type "application/gzip" (41211 bytes)