[linux-next:master 125/6564] arch/arm/mach-iop32x/cp6.c:10:6: warning: no previous prototype for 'iop_enable_cp6'

[linux-next:master 125/6564] arch/arm/mach-iop32x/cp6.c:10:6: warning: no previous prototype for 'iop_enable_cp6'

[kernel test robot]

Hi Arnd,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   3c30cf91b5ecc7272b3d2942ae0505dd8320b81c
commit: 6f5d248d05db9c4991366154f1a657a630faa583 [125/6564] ARM: iop32x: use GENERIC_IRQ_MULTI_HANDLER
config: arm-iop32x_defconfig (https://download.01.org/0day-ci/archive/20220221/202202211917.zWulkbAL-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=6f5d248d05db9c4991366154f1a657a630faa583
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 6f5d248d05db9c4991366154f1a657a630faa583
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross 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@intel.com>

All warnings (new ones prefixed by >>):

>> arch/arm/mach-iop32x/cp6.c:10:6: warning: no previous prototype for 'iop_enable_cp6' [-Wmissing-prototypes]
      10 | void iop_enable_cp6(void)
         |      ^~~~~~~~~~~~~~
   arch/arm/mach-iop32x/cp6.c:43:13: warning: no previous prototype for 'iop_init_cp6_handler' [-Wmissing-prototypes]
      43 | void __init iop_init_cp6_handler(void)
         |             ^~~~~~~~~~~~~~~~~~~~


vim +/iop_enable_cp6 +10 arch/arm/mach-iop32x/cp6.c

     9	
  > 10	void iop_enable_cp6(void)
    11	{
    12		u32 temp;
    13	
    14	        /* enable cp6 access */
    15	        asm volatile (
    16			"mrc	p15, 0, %0, c15, c1, 0\n\t"
    17			"orr	%0, %0, #(1 << 6)\n\t"
    18			"mcr	p15, 0, %0, c15, c1, 0\n\t"
    19			"mrc	p15, 0, %0, c15, c1, 0\n\t"
    20			"mov	%0, %0\n\t"
    21			"sub	pc, pc, #4  @ cp_wait\n\t"
    22			: "=r"(temp));
    23	}
    24	

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