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    Subject[jirislaby:lto 4/45] kernel/static_call_inline.c:504:15: warning: no previous prototype for 'func_a'
    tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git lto
    head: 8047611082d70c5263114fabce8c80a4c3d251fa
    commit: e99286245556c2e8709aaa23124b9a7a10fa975b [4/45] static_call: Make static call functions visible
    config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220624/202206240131.GMBBDfhI-lkp@intel.com/config)
    compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
    reproduce (this is a W=1 build):
    # https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git/commit/?id=e99286245556c2e8709aaa23124b9a7a10fa975b
    git remote add jirislaby https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git
    git fetch --no-tags jirislaby lto
    git checkout e99286245556c2e8709aaa23124b9a7a10fa975b
    # save the config file
    mkdir build_dir && cp config build_dir/.config
    make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

    All warnings (new ones prefixed by >>):

    >> kernel/static_call_inline.c:504:15: warning: no previous prototype for 'func_a' [-Wmissing-prototypes]
    504 | int __visible func_a(int x)
    | ^~~~~~
    >> kernel/static_call_inline.c:509:15: warning: no previous prototype for 'func_b' [-Wmissing-prototypes]
    509 | int __visible func_b(int x)
    | ^~~~~~


    vim +/func_a +504 kernel/static_call_inline.c

    503
    > 504 int __visible func_a(int x)
    505 {
    506 return x+1;
    507 }
    508
    > 509 int __visible func_b(int x)
    510 {
    511 return x+2;
    512 }
    513

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

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