[PATCH v3 01/10] arch: arm: mach-hpe: Introduce the HPE GXP architecture

[kernel test robot]

Hi,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on tip/timers/core]
[also build test WARNING on soc/for-next robh/for-next linus/master v5.17-rc7 next-20220310]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/nick-hawkins-hpe-com/arch-arm-mach-hpe-Introduce-the-HPE-GXP-architecture/20220311-035513
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 58dedf0a4782ce42b4d31f1f62e5ad80a1b73d72
config: arm-defconfig (https://download.01.org/0day-ci/archive/20220311/202203111516.oSsKrRqX-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 276ca87382b8f16a65bddac700202924228982f6)
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 arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/0day-ci/linux/commit/9fbfc32473a65e025764e0a1456c421b4706fe8e
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review nick-hawkins-hpe-com/arch-arm-mach-hpe-Introduce-the-HPE-GXP-architecture/20220311-035513
        git checkout 9fbfc32473a65e025764e0a1456c421b4706fe8e
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash

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

All warnings (new ones prefixed by >>):

>> arch/arm/mach-hpe/gxp.c:26:13: warning: no previous prototype for function 'gxp_map_io' [-Wmissing-prototypes]
   void __init gxp_map_io(void)
               ^
   arch/arm/mach-hpe/gxp.c:26:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __init gxp_map_io(void)
   ^
   static 
   1 warning generated.


vim +/gxp_map_io +26 arch/arm/mach-hpe/gxp.c

    25	
  > 26	void __init gxp_map_io(void)
    27	{
    28		iotable_init(gxp_io_desc, ARRAY_SIZE(gxp_io_desc));
    29	}
    30	

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