linux-kernel - [tip:locking/core 2/4] arch/mips/kernel/jump_label.c:93:6: warning: no previous prototype for function 'jump_label_apply

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Date:   Sat, 9 Jul 2022 04:49:58 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ard Biesheuvel <ardb@...nel.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, x86@...nel.org
Subject: [tip:locking/core 2/4] arch/mips/kernel/jump_label.c:93:6: warning:
 no previous prototype for function 'jump_label_apply_nops'

Hi Ard,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/core
head:   eae6d58d67d9739be5f7ae2dbead1d0ef6528243
commit: fdfd42892f311e2b3695852036e5be23661dc590 [2/4] jump_label: mips: move module NOP patching into arch code
config: mips-randconfig-r035-20220708 (https://download.01.org/0day-ci/archive/20220709/202207090424.PgjCetK5-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 562c3467a6738aa89203f72fc1d1343e5baadf3c)
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
        # install mips cross compiling tool for clang build
        # apt-get install binutils-mips-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=fdfd42892f311e2b3695852036e5be23661dc590
        git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
        git fetch --no-tags tip locking/core
        git checkout fdfd42892f311e2b3695852036e5be23661dc590
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash arch/mips/kernel/ fs/ksmbd/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> arch/mips/kernel/jump_label.c:93:6: warning: no previous prototype for function 'jump_label_apply_nops' [-Wmissing-prototypes]
   void jump_label_apply_nops(struct module *mod)
        ^
   arch/mips/kernel/jump_label.c:93:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void jump_label_apply_nops(struct module *mod)
   ^
   static 
   1 warning generated.


vim +/jump_label_apply_nops +93 arch/mips/kernel/jump_label.c

    91	
    92	#ifdef CONFIG_MODULES
  > 93	void jump_label_apply_nops(struct module *mod)

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp