linux-kernel - [tobetter:odroid-5.16.y 47/75] drivers/power/reset/odroid-reboot.c:63:6: warning: no previous prototype for 'odroid_card

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Message-ID: <202112090748.XBcFY507-lkp@intel.com>
Date:   Thu, 9 Dec 2021 07:27:29 +0800
From:   kernel test robot <lkp@...el.com>
To:     ckkim <changkon12@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Dongjin Kim <tobetter@...il.com>
Subject: [tobetter:odroid-5.16.y 47/75]
 drivers/power/reset/odroid-reboot.c:63:6: warning: no previous prototype for
 'odroid_card_reset'

tree:   https://github.com/tobetter/linux odroid-5.16.y
head:   04f296b5f991198f16f76ba15a23e9e00e30aac4
commit: 2c677a9186d050d7da424a02db0ab29d4796bb7d [47/75] ODROID-COMMON: power:reset: Add odroid support
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20211209/202112090748.XBcFY507-lkp@intel.com/config)
compiler: aarch64-linux-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://github.com/tobetter/linux/commit/2c677a9186d050d7da424a02db0ab29d4796bb7d
        git remote add tobetter https://github.com/tobetter/linux
        git fetch --no-tags tobetter odroid-5.16.y
        git checkout 2c677a9186d050d7da424a02db0ab29d4796bb7d
        # 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=arm64 SHELL=/bin/bash drivers/power/reset/

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

All warnings (new ones prefixed by >>):

>> drivers/power/reset/odroid-reboot.c:63:6: warning: no previous prototype for 'odroid_card_reset' [-Wmissing-prototypes]
      63 | void odroid_card_reset(void)
         |      ^~~~~~~~~~~~~~~~~
   drivers/power/reset/odroid-reboot.c: In function 'odroid_restart_probe':
   drivers/power/reset/odroid-reboot.c:141:17: error: 'arm_pm_restart' undeclared (first use in this function); did you mean 'alarm_restart'?
     141 |                 arm_pm_restart = do_odroid_restart;
         |                 ^~~~~~~~~~~~~~
         |                 alarm_restart
   drivers/power/reset/odroid-reboot.c:141:17: note: each undeclared identifier is reported only once for each function it appears in


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	

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