arch/arm64/kernel/entry-common.c:68:25: warning: no previous prototype for 'el1_sync_handler'

[kernel test robot]

Hi Mark,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   2c85ebc57b3e1817b6ce1a6b703928e113a90442
commit: ed3768db588291ddb5dc794daed12cc751373566 arm64: entry: convert el1_sync to C
date:   1 year, 2 months ago
config: arm64-randconfig-r021-20201214 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
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/torvalds/linux.git/commit/?id=ed3768db588291ddb5dc794daed12cc751373566
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout ed3768db588291ddb5dc794daed12cc751373566
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

>> arch/arm64/kernel/entry-common.c:68:25: warning: no previous prototype for 'el1_sync_handler' [-Wmissing-prototypes]
      68 | asmlinkage void notrace el1_sync_handler(struct pt_regs *regs)
         |                         ^~~~~~~~~~~~~~~~

vim +/el1_sync_handler +68 arch/arm64/kernel/entry-common.c

    67	
  > 68	asmlinkage void notrace el1_sync_handler(struct pt_regs *regs)

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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