[power-supply:for-next 58/68] drivers/power/supply/max17040_battery.c:231:3: warning: cast to smaller integer type 'enum chip_id' from 'const void

[power-supply:for-next 58/68] drivers/power/supply/max17040_battery.c:231:3: warning: cast to smaller integer type 'enum chip_id' from 'const void

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 3239 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git for-next
head:   304bff2fb8e9ad0047c11ae0ef2ca6c3d74cd52b
commit: 1779c6e3496a53d9cbbbcd248b234b2b6a07435c [58/68] power: supply: max17040: Support setting rcomp
config: x86_64-randconfig-a015-20201004 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project bcd05599d0e53977a963799d6ee4f6e0bc21331b)
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://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git/commit/?id=1779c6e3496a53d9cbbbcd248b234b2b6a07435c
        git remote add power-supply https://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git
        git fetch --no-tags power-supply for-next
        git checkout 1779c6e3496a53d9cbbbcd248b234b2b6a07435c
        # 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/power/supply/max17040_battery.c:231:3: warning: cast to smaller integer type 'enum chip_id' from 'const void *' [-Wvoid-pointer-to-enum-cast]
                   (enum chip_id) of_device_get_match_data(dev)];
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   1 warning generated.

vim +231 drivers/power/supply/max17040_battery.c

   226	
   227	static int max17040_get_of_data(struct max17040_chip *chip)
   228	{
   229		struct device *dev = &chip->client->dev;
   230		struct chip_data *data = &max17040_family[
 > 231			(enum chip_id) of_device_get_match_data(dev)];
   232		int rcomp_len;
   233		u8 rcomp[2];
   234	
   235		chip->quirk_double_soc = device_property_read_bool(dev,
   236								   "maxim,double-soc");
   237	
   238		chip->low_soc_alert = MAX17040_ATHD_DEFAULT_POWER_UP;
   239		device_property_read_u32(dev,
   240					 "maxim,alert-low-soc-level",
   241					 &chip->low_soc_alert);
   242	
   243		if (chip->low_soc_alert <= 0 ||
   244		    chip->low_soc_alert > (chip->quirk_double_soc ? 16 : 32)) {
   245			dev_err(dev, "maxim,alert-low-soc-level out of bounds\n");
   246			return -EINVAL;
   247		}
   248	
   249		rcomp_len = device_property_count_u8(dev, "maxim,rcomp");
   250		chip->rcomp = MAX17040_RCOMP_DEFAULT;
   251		if (rcomp_len == data->rcomp_bytes) {
   252			device_property_read_u8_array(dev, "maxim,rcomp",
   253						      rcomp, rcomp_len);
   254			chip->rcomp = rcomp_len == 2 ?
   255				rcomp[0] << 8 | rcomp[1] :
   256				rcomp[0] << 8;
   257		} else if (rcomp_len > 0) {
   258			dev_err(dev, "maxim,rcomp has incorrect length\n");
   259			return -EINVAL;
   260		}
   261	
   262		return 0;
   263	}
   264	

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

[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 41486 bytes --]