[arm-integrator:test 2/4] arch/arm/mm/init.c:296:13: warning: no previous prototype for function 'mem_init_print_arm_info'

[kernel test robot <lkp@intel.com>]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git test
head:   8ebead0b0045dda65746d26081a6776760ce1d4b
commit: 9b4d47c91aed33d108e20a645c76ac6ffc78d50f [2/4] ARM: Print virtual memory info again
config: arm-randconfig-r013-20210412 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9829f5e6b1bca9b61efc629770d28bb9014dec45)
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://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git/commit/?id=9b4d47c91aed33d108e20a645c76ac6ffc78d50f
        git remote add arm-integrator https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git
        git fetch --no-tags arm-integrator test
        git checkout 9b4d47c91aed33d108e20a645c76ac6ffc78d50f
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm 

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 >>):

   arch/arm/mm/init.c:97:13: warning: no previous prototype for function 'setup_dma_zone' [-Wmissing-prototypes]
   void __init setup_dma_zone(const struct machine_desc *mdesc)
               ^
   arch/arm/mm/init.c:97:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __init setup_dma_zone(const struct machine_desc *mdesc)
   ^
   static 
>> arch/arm/mm/init.c:296:13: warning: no previous prototype for function 'mem_init_print_arm_info' [-Wmissing-prototypes]
   void __init mem_init_print_arm_info(void)
               ^
   arch/arm/mm/init.c:296:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __init mem_init_print_arm_info(void)
   ^
   static 
   2 warnings generated.


vim +/mem_init_print_arm_info +296 arch/arm/mm/init.c

   295	
 > 296	void __init mem_init_print_arm_info(void)
   297	{
   298	#define MLM(b, t) b, t, ((t) - (b)) >> 20
   299		pr_notice("Virtual kernel memory layout:\n"
   300			  "    fixmap  : 0x%08lx - 0x%08lx   (%4ld MB)\n"
   301			  "    vmalloc : 0x%08lx - 0x%08lx   (%4ld MB)\n"
   302			  "    lowmem  : 0x%08lx - 0x%08lx   (%4ld MB)\n"
   303	#ifdef CONFIG_MODULES
   304			  "    modules : 0x%08lx - 0x%08lx   (%4ld MB)\n",
   305	#endif
   306			  "     kernel : 0x%08lx - 0x%08lx   (%4ld MB)\n",
   307			  MLM(FIXADDR_START, FIXADDR_END),
   308			  MLM(VMALLOC_START, VMALLOC_END),
   309			  MLM(PAGE_OFFSET, (unsigned long)high_memory),
   310	#ifdef CONFIG_MODULES
   311			  MLM(MODULES_VADDR, MODULES_END),
   312	#endif
   313			  /* From beginning of .text to end of .bss */
   314			  MLM((unsigned long)_text, (unsigned long)__bss_stop));
   315	#undef MLM
   316	}
   317	

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

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