linux-kernel - [mark:arm64/alternatives/rework 10/12] arch/arm64/kernel/alternative.c:269:14: warning: no previous prototype for function 'patch_apply

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Date:   Tue, 23 Aug 2022 10:27:40 +0800
From:   kernel test robot <lkp@...el.com>
To:     Mark Rutland <mark.rutland@....com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [mark:arm64/alternatives/rework 10/12]
 arch/arm64/kernel/alternative.c:269:14: warning: no previous prototype for
 function 'patch_apply_nops'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64/alternatives/rework
head:   c6f1e900bb0e1c5932f9995feaf4acb70cf6f62e
commit: f1665fd81160e18d4c71f4edcfd25c41e248fb67 [10/12] HACK: nops
config: arm64-buildonly-randconfig-r005-20220822 (https://download.01.org/0day-ci/archive/20220823/202208231008.mwF7HrQy-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project abce7acebd4c06c977bc4bd79170697f1122bc5e)
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 arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/commit/?id=f1665fd81160e18d4c71f4edcfd25c41e248fb67
        git remote add mark https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git
        git fetch --no-tags mark arm64/alternatives/rework
        git checkout f1665fd81160e18d4c71f4edcfd25c41e248fb67
        # 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=arm64 SHELL=/bin/bash arch/arm64/kernel/

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/arm64/kernel/alternative.c:269:14: warning: no previous prototype for function 'patch_apply_nops' [-Wmissing-prototypes]
   noinstr void patch_apply_nops(struct alt_instr *alt,
                ^
   arch/arm64/kernel/alternative.c:269:9: note: declare 'static' if the function is not intended to be used outside of this translation unit
   noinstr void patch_apply_nops(struct alt_instr *alt,
           ^
           static 
   1 warning generated.


vim +/patch_apply_nops +269 arch/arm64/kernel/alternative.c

   268	
 > 269	noinstr void patch_apply_nops(struct alt_instr *alt,

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