linux-kernel - [mark:arm64/uaccess/rework 10/19] arch/arm64/mm/extable.c:40:6: warning: no previous prototype for function 'ex_handler

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Message-ID: <202110120247.LwwsUg2V-lkp@intel.com>
Date:   Tue, 12 Oct 2021 02:27:56 +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/uaccess/rework 10/19] arch/arm64/mm/extable.c:40:6:
 warning: no previous prototype for function 'ex_handler_fixup'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64/uaccess/rework
head:   692de878f919de31942d0d28571b5e6f32c7135e
commit: a164173cfda0db892be6683fce0689f7db6388e2 [10/19] arm64: add basic extable fixup handler
config: arm64-randconfig-r033-20211011 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project f95d9c95bbf4cf662b9a181245fc6dcede39f590)
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=a164173cfda0db892be6683fce0689f7db6388e2
        git remote add mark https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git
        git fetch --no-tags mark arm64/uaccess/rework
        git checkout a164173cfda0db892be6683fce0689f7db6388e2
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm64 

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/arm64/mm/extable.c:40:6: warning: no previous prototype for function 'ex_handler_fixup' [-Wmissing-prototypes]
   bool ex_handler_fixup(const struct exception_table_entry *ex,
        ^
   arch/arm64/mm/extable.c:40:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   bool ex_handler_fixup(const struct exception_table_entry *ex,
   ^
   static 
   1 warning generated.


vim +/ex_handler_fixup +40 arch/arm64/mm/extable.c

    39	
  > 40	bool ex_handler_fixup(const struct exception_table_entry *ex,

---
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" (39215 bytes)