[arm-platforms:hack/devm_cast_abuse 17/17] drivers/char/hw_random/meson-rng.c:57:9: error: implicit declaration of function 'devm_clk_prepare_enable'; did you mean

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git hack/devm_cast_abuse
head:   542cb40d75bf747a26ac91aa28f1a1ecb19b89e3
commit: 542cb40d75bf747a26ac91aa28f1a1ecb19b89e3 [17/17] treewide: Bulk conversion to devm_clk_prepare_enable()
config: m68k-randconfig-r012-20201215 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
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/maz/arm-platforms.git/commit/?id=542cb40d75bf747a26ac91aa28f1a1ecb19b89e3
        git remote add arm-platforms https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git
        git fetch --no-tags arm-platforms hack/devm_cast_abuse
        git checkout 542cb40d75bf747a26ac91aa28f1a1ecb19b89e3
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 

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

All errors (new ones prefixed by >>):

   drivers/char/hw_random/meson-rng.c: In function 'meson_rng_probe':
>> drivers/char/hw_random/meson-rng.c:57:9: error: implicit declaration of function 'devm_clk_prepare_enable'; did you mean 'clk_prepare_enable'? [-Werror=implicit-function-declaration]
      57 |   ret = devm_clk_prepare_enable(dev, data->core_clk);
         |         ^~~~~~~~~~~~~~~~~~~~~~~
         |         clk_prepare_enable
   cc1: some warnings being treated as errors

vim +57 drivers/char/hw_random/meson-rng.c

    35	
    36	static int meson_rng_probe(struct platform_device *pdev)
    37	{
    38		struct device *dev = &pdev->dev;
    39		struct meson_rng_data *data;
    40		int ret;
    41	
    42		data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
    43		if (!data)
    44			return -ENOMEM;
    45	
    46		data->pdev = pdev;
    47	
    48		data->base = devm_platform_ioremap_resource(pdev, 0);
    49		if (IS_ERR(data->base))
    50			return PTR_ERR(data->base);
    51	
    52		data->core_clk = devm_clk_get(dev, "core");
    53		if (IS_ERR(data->core_clk))
    54			data->core_clk = NULL;
    55	
    56		if (data->core_clk) {
  > 57			ret = devm_clk_prepare_enable(dev, data->core_clk);
    58			if (ret)
    59				return ret;
    60		}
    61	
    62		data->rng.name = pdev->name;
    63		data->rng.read = meson_rng_read;
    64	
    65		platform_set_drvdata(pdev, data);
    66	
    67		return devm_hwrng_register(dev, &data->rng);
    68	}
    69	

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