[linux-next:master 11546/12162] drivers/mfd/max77541.c:176:18: warning: cast to smaller integer type 'enum max7754x_ids' from 'const void *'

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   8d2be868b42c08290509c60515865f4de24ea704
commit: e0cbc202388af454eb771043b20db6dfe68199ec [11546/12162] mfd: max77541: Add ADI MAX77541/MAX77540 PMIC Support
config: x86_64-randconfig-r003-20230626 (https://download.01.org/0day-ci/archive/20230626/202306260401.qZlYQpV2-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce: (https://download.01.org/0day-ci/archive/20230626/202306260401.qZlYQpV2-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306260401.qZlYQpV2-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/mfd/max77541.c:176:18: warning: cast to smaller integer type 'enum max7754x_ids' from 'const void *' [-Wvoid-pointer-to-enum-cast]
           max77541->id  = (enum max7754x_ids)device_get_match_data(dev);
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   1 warning generated.


vim +176 drivers/mfd/max77541.c

   162	
   163	static int max77541_probe(struct i2c_client *client)
   164	{
   165		const struct i2c_device_id *id = i2c_client_get_device_id(client);
   166		struct device *dev = &client->dev;
   167		struct max77541 *max77541;
   168	
   169		max77541 = devm_kzalloc(dev, sizeof(*max77541), GFP_KERNEL);
   170		if (!max77541)
   171			return -ENOMEM;
   172	
   173		i2c_set_clientdata(client, max77541);
   174		max77541->i2c = client;
   175	
 > 176		max77541->id  = (enum max7754x_ids)device_get_match_data(dev);
   177		if (!max77541->id)
   178			max77541->id  = (enum max7754x_ids)id->driver_data;
   179	
   180		if (!max77541->id)
   181			return -EINVAL;
   182	
   183		max77541->regmap = devm_regmap_init_i2c(client,
   184							&max77541_regmap_config);
   185		if (IS_ERR(max77541->regmap))
   186			return dev_err_probe(dev, PTR_ERR(max77541->regmap),
   187					     "Failed to allocate register map\n");
   188	
   189		return max77541_pmic_setup(dev);
   190	}
   191	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki




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