[shenki:dev-5.8 120/218] drivers/fsi/fsi-occ.c:570:17: warning: cast to smaller integer type 'enum versions' from 'const void

[shenki:dev-5.8 120/218] drivers/fsi/fsi-occ.c:570:17: warning: cast to smaller integer type 'enum versions' from 'const void

[kernel test robot]

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Hi Eddie,

FYI, the error/warning still remains.

tree:   https://github.com/shenki/linux dev-5.8
head:   599d7f997930829f13e05d332e3e7fccd89d340d
commit: 0f099b795d61ec929a685d444cc2566f57ac081f [120/218] fsi: occ: Add support for P10
config: x86_64-randconfig-a006-20210202 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 275c6af7d7f1ed63a03d05b4484413e447133269)
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
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/shenki/linux/commit/0f099b795d61ec929a685d444cc2566f57ac081f
        git remote add shenki https://github.com/shenki/linux
        git fetch --no-tags shenki dev-5.8
        git checkout 0f099b795d61ec929a685d444cc2566f57ac081f
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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 >>):

>> drivers/fsi/fsi-occ.c:570:17: warning: cast to smaller integer type 'enum versions' from 'const void *' [-Wvoid-pointer-to-enum-cast]
           occ->version = (enum versions)md;
                          ^~~~~~~~~~~~~~~~~
   1 warning generated.


vim +570 drivers/fsi/fsi-occ.c

   552	
   553	static int occ_probe(struct platform_device *pdev)
   554	{
   555		int rc;
   556		u32 reg;
   557		struct occ *occ;
   558		struct platform_device *hwmon_dev;
   559		struct device *dev = &pdev->dev;
   560		const void *md =  of_device_get_match_data(dev);
   561		struct platform_device_info hwmon_dev_info = {
   562			.parent = dev,
   563			.name = "occ-hwmon",
   564		};
   565	
   566		occ = devm_kzalloc(dev, sizeof(*occ), GFP_KERNEL);
   567		if (!occ)
   568			return -ENOMEM;
   569	
 > 570		occ->version = (enum versions)md;
   571		occ->dev = dev;
   572		occ->sbefifo = dev->parent;
   573		mutex_init(&occ->occ_lock);
   574	
   575		if (dev->of_node) {
   576			rc = of_property_read_u32(dev->of_node, "reg", &reg);
   577			if (!rc) {
   578				/* make sure we don't have a duplicate from dts */
   579				occ->idx = ida_simple_get(&occ_ida, reg, reg + 1,
   580							  GFP_KERNEL);
   581				if (occ->idx < 0)
   582					occ->idx = ida_simple_get(&occ_ida, 1, INT_MAX,
   583								  GFP_KERNEL);
   584			} else {
   585				occ->idx = ida_simple_get(&occ_ida, 1, INT_MAX,
   586							  GFP_KERNEL);
   587			}
   588		} else {
   589			occ->idx = ida_simple_get(&occ_ida, 1, INT_MAX, GFP_KERNEL);
   590		}
   591	
   592		platform_set_drvdata(pdev, occ);
   593	
   594		snprintf(occ->name, sizeof(occ->name), "occ%d", occ->idx);
   595		occ->mdev.fops = &occ_fops;
   596		occ->mdev.minor = MISC_DYNAMIC_MINOR;
   597		occ->mdev.name = occ->name;
   598		occ->mdev.parent = dev;
   599	
   600		rc = misc_register(&occ->mdev);
   601		if (rc) {
   602			dev_err(dev, "failed to register miscdevice: %d\n", rc);
   603			ida_simple_remove(&occ_ida, occ->idx);
   604			return rc;
   605		}
   606	
   607		hwmon_dev_info.id = occ->idx;
   608		hwmon_dev = platform_device_register_full(&hwmon_dev_info);
   609		if (IS_ERR(hwmon_dev))
   610			dev_warn(dev, "failed to create hwmon device\n");
   611	
   612		return 0;
   613	}
   614	

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

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