[arnd-playground:to-build 37/41] drivers/net/wan/lmc/lmc_proto.c:61:5: warning: no previous prototype for function 'lmc_proto_ioctl'

[arnd-playground:to-build 37/41] drivers/net/wan/lmc/lmc_proto.c:61:5: warning: no previous prototype for function 'lmc_proto_ioctl'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git to-build
head:   5fd3eccb73a30251d944935959498ca308848a54
commit: cae2b1064d5a147bffbd0447f9cd264b140b7f72 [37/41] net: split out ndo_siowandev ioctl
config: x86_64-randconfig-a003-20210517 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 0a34ff8bcb1df16fe7d643ccbe4567b2162c5024)
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 x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/commit/?id=cae2b1064d5a147bffbd0447f9cd264b140b7f72
        git remote add arnd-playground https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git
        git fetch --no-tags arnd-playground to-build
        git checkout cae2b1064d5a147bffbd0447f9cd264b140b7f72
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

>> drivers/net/wan/lmc/lmc_proto.c:61:5: warning: no previous prototype for function 'lmc_proto_ioctl' [-Wmissing-prototypes]
   int lmc_proto_ioctl(lmc_softc_t *sc, struct if_settings *ifs)
       ^
   drivers/net/wan/lmc/lmc_proto.c:61:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int lmc_proto_ioctl(lmc_softc_t *sc, struct if_settings *ifs)
   ^
   static 
   1 warning generated.


vim +/lmc_proto_ioctl +61 drivers/net/wan/lmc/lmc_proto.c

    60	
  > 61	int lmc_proto_ioctl(lmc_softc_t *sc, struct if_settings *ifs)
    62	{
    63		if (sc->if_type == LMC_PPP)
    64			return hdlc_ioctl(sc->lmc_device, ifs);
    65		return -EOPNOTSUPP;
    66	}
    67	

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

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