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/com... 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(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/char/hw_random/meson-rng.c: In function 'meson_rng_probe': 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) { 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