[tobetter:odroid-6.1.y 22/91] drivers/power/reset/odroid-reboot.c:63:6: warning: no previous prototype for function 'odroid_card_reset'

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

tree:   https://github.com/tobetter/linux odroid-6.1.y
head:   4abe38fb1d55e2c5f10582404c5ff88505060b73
commit: 3aecc1cd0e4093eda45e6a35ec7023b3ef3d8037 [22/91] ODROID-COMMON: power:reset: Add odroid support
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20240121/202401211409.lcgvCFFg-lkp@intel.com/config)
compiler: clang version 18.0.0git (https://github.com/llvm/llvm-project d92ce344bf641e6bb025b41b3f1a77dd25e2b3e9)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240121/202401211409.lcgvCFFg-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401211409.lcgvCFFg-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/power/reset/odroid-reboot.c:63:6: warning: no previous prototype for function 'odroid_card_reset' [-Wmissing-prototypes]
      63 | void odroid_card_reset(void)
         |      ^
   drivers/power/reset/odroid-reboot.c:63:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
      63 | void odroid_card_reset(void)
         | ^
         | static 
   drivers/power/reset/odroid-reboot.c:141:3: error: use of undeclared identifier 'arm_pm_restart'
     141 |                 arm_pm_restart = do_odroid_restart;
         |                 ^
   1 warning and 1 error generated.


vim +/odroid_card_reset +63 drivers/power/reset/odroid-reboot.c

    62	
  > 63	void odroid_card_reset(void)
    64	{
    65		int ret = 0;
    66	
    67		if ((sd_vqsw == 0) && (sd_vmmc == 0))
    68			return;
    69	
    70		if (sd_vqen == 0) {
    71			gpio_free(sd_vqsw);
    72			gpio_free(sd_vmmc);
    73			ret = gpio_request_one(sd_vqsw,
    74					GPIOF_OUT_INIT_LOW, "REBOOT");
    75			CHECK_RET(ret);
    76			mdelay(10);
    77			ret = gpio_direction_output(sd_vqsw, 1);
    78			CHECK_RET(ret);
    79			ret = gpio_request_one(sd_vmmc,
    80					GPIOF_OUT_INIT_LOW, "REBOOT");
    81			CHECK_RET(ret);
    82			mdelay(10);
    83			ret = gpio_direction_output(sd_vqsw, 0);
    84			CHECK_RET(ret);
    85			ret = gpio_direction_output(sd_vmmc, 1);
    86			CHECK_RET(ret);
    87			mdelay(5);
    88			gpio_free(sd_vqsw);
    89			gpio_free(sd_vmmc);
    90		} else {
    91			gpio_free(sd_vqsw);
    92			gpio_free(sd_vqen);
    93			gpio_free(sd_vmmc);
    94	
    95			ret = gpio_request_one(sd_vqsw,
    96					GPIOF_OUT_INIT_LOW, "REBOOT");
    97			CHECK_RET(ret);
    98			ret = gpio_request_one(sd_vqen,
    99					GPIOF_OUT_INIT_LOW, "REBOOT");
   100			CHECK_RET(ret);
   101			ret = gpio_request_one(sd_vmmc,
   102					GPIOF_OUT_INIT_LOW, "REBOOT");
   103			CHECK_RET(ret);
   104			mdelay(100);
   105			ret = gpio_direction_input(sd_vqen);
   106			CHECK_RET(ret);
   107			ret = gpio_direction_input(sd_vmmc);
   108			CHECK_RET(ret);
   109			ret = gpio_direction_input(sd_vqsw);
   110			CHECK_RET(ret);
   111			mdelay(5);
   112			gpio_free(sd_vqen);
   113			gpio_free(sd_vmmc);
   114			gpio_free(sd_vqsw);
   115		}
   116	}
   117	

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