Re: [PATCH v2] hwmon: (pmbus/acbel-fsg032) Add firmware version debugfs attribute

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Hi Eddie,

kernel test robot noticed the following build warnings:

[auto build test WARNING on groeck-staging/hwmon-next]
[also build test WARNING on linus/master v6.4 next-20230628]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Eddie-James/hwmon-pmbus-acbel-fsg032-Add-firmware-version-debugfs-attribute/20230628-233840
base:   https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next
patch link:    https://lore.kernel.org/r/20230628153453.122213-1-eajames%40linux.ibm.com
patch subject: [PATCH v2] hwmon: (pmbus/acbel-fsg032) Add firmware version debugfs attribute
config: x86_64-randconfig-x016-20230628 (https://download.01.org/0day-ci/archive/20230629/202306291012.dDHxs13l-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/20230629/202306291012.dDHxs13l-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/202306291012.dDHxs13l-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/hwmon/pmbus/acbel-fsg032.c:25:6: warning: unused variable 'i' [-Wunused-variable]
           int i;
               ^
   1 warning generated.


vim +/i +25 drivers/hwmon/pmbus/acbel-fsg032.c

    17	
    18	static ssize_t acbel_fsg032_debugfs_read(struct file *file, char __user *buf, size_t count,
    19						 loff_t *ppos)
    20	{
    21		struct i2c_client *client = file->private_data;
    22		char data[I2C_SMBUS_BLOCK_MAX + 2] = { 0 };
    23		char out[8];
    24		int rc;
  > 25		int i;
    26	
    27		rc = i2c_smbus_read_block_data(client, ACBEL_MFR_FW_REVISION, data);
    28		if (rc < 0)
    29			return rc;
    30	
    31		rc = snprintf(out, sizeof(out), "%*phN\n", min(rc, 3), data);
    32		return simple_read_from_buffer(buf, count, ppos, out, rc);
    33	}
    34	

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



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