linux-kernel - [jirislaby:lto 4/45] kernel/static_call_inline.c:504:15: warning: no previous prototype for 'func

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Message-ID: <202206240131.GMBBDfhI-lkp@intel.com>
Date:   Fri, 24 Jun 2022 01:44:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     marxin <mliska@...e.cz>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Jiri Slaby <jirislaby@...nel.org>,
        Andi Kleen <andi@...stfloor.org>
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@...el.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