Hi Sandeep,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.8 next-20200807]
[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]

url:    
https://github.com/0day-ci/linux/commits/Sandeep-Singh/SFH-Add-Support-for-AMD-Sensor-Fusion-Hub/20200809-182729
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
06a81c1c7db9bd5de0bd38cd5acc44bb22b99150
config: riscv-allyesconfig (attached as .config)
compiler: riscv64-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
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=riscv 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>

All warnings (new ones prefixed by >>):

   drivers/hid/amd-sfh-hid/amdsfh_hid_client.c: In function 
'amd_sfh_hid_client_init':
>> drivers/hid/amd-sfh-hid/amdsfh_hid_client.c:140:6: warning: variable 'rc' 
>> set but not used [-Wunused-but-set-variable]
     140 |  int rc, i;
         |      ^~

vim +/rc +140 drivers/hid/amd-sfh-hid/amdsfh_hid_client.c

6d2f42dac8a703 Sandeep Singh 2020-08-09  131  
6d2f42dac8a703 Sandeep Singh 2020-08-09  132  int 
amd_sfh_hid_client_init(struct amd_mp2_dev *privdata)
6d2f42dac8a703 Sandeep Singh 2020-08-09  133  {
6d2f42dac8a703 Sandeep Singh 2020-08-09  134    struct amdtp_cl_data *cl_data = 
privdata->cl_data;
6d2f42dac8a703 Sandeep Singh 2020-08-09  135    struct amd_mp2_sensor_info info;
6d2f42dac8a703 Sandeep Singh 2020-08-09  136    struct device *dev;
6d2f42dac8a703 Sandeep Singh 2020-08-09  137    u32 feature_report_size;
6d2f42dac8a703 Sandeep Singh 2020-08-09  138    u32 input_report_size;
6d2f42dac8a703 Sandeep Singh 2020-08-09  139    u8 cl_idx;
6d2f42dac8a703 Sandeep Singh 2020-08-09 @140    int rc, i;
6d2f42dac8a703 Sandeep Singh 2020-08-09  141  
6d2f42dac8a703 Sandeep Singh 2020-08-09  142    dev = &privdata->pdev->dev;
6d2f42dac8a703 Sandeep Singh 2020-08-09  143    cl_data = 
kzalloc(sizeof(*cl_data), GFP_KERNEL);
6d2f42dac8a703 Sandeep Singh 2020-08-09  144    if (!cl_data)
6d2f42dac8a703 Sandeep Singh 2020-08-09  145            return -ENOMEM;
6d2f42dac8a703 Sandeep Singh 2020-08-09  146  
6d2f42dac8a703 Sandeep Singh 2020-08-09  147    cl_data->num_hid_devices = 
amd_mp2_get_sensor_num(privdata, &cl_data->sensor_idx[0]);
6d2f42dac8a703 Sandeep Singh 2020-08-09  148  
6d2f42dac8a703 Sandeep Singh 2020-08-09  149    
INIT_DELAYED_WORK(&cl_data->work, amd_sfh_work);
6d2f42dac8a703 Sandeep Singh 2020-08-09  150    
INIT_DELAYED_WORK(&cl_data->work_buffer, amd_sfh_work_buffer);
6d2f42dac8a703 Sandeep Singh 2020-08-09  151    INIT_LIST_HEAD(&req_list.list);
6d2f42dac8a703 Sandeep Singh 2020-08-09  152  
6d2f42dac8a703 Sandeep Singh 2020-08-09  153    for (i = 0; i < 
cl_data->num_hid_devices; i++) {
6d2f42dac8a703 Sandeep Singh 2020-08-09  154            
cl_data->sensor_virt_addr[i] = dma_alloc_coherent(dev, sizeof(int) * 8,
6d2f42dac8a703 Sandeep Singh 2020-08-09  155                                    
                          &cl_data->sensor_phys_addr[i],
6d2f42dac8a703 Sandeep Singh 2020-08-09  156                                    
                          GFP_KERNEL);
6d2f42dac8a703 Sandeep Singh 2020-08-09  157            cl_data->sensor_sts[i] 
= 0;
6d2f42dac8a703 Sandeep Singh 2020-08-09  158            
cl_data->sensor_requested_cnt[i] = 0;
6d2f42dac8a703 Sandeep Singh 2020-08-09  159            cl_data->cur_hid_dev = 
i;
6d2f42dac8a703 Sandeep Singh 2020-08-09  160            cl_idx = 
cl_data->sensor_idx[i];
6d2f42dac8a703 Sandeep Singh 2020-08-09  161            
cl_data->report_descr_sz[i] = get_descr_sz(cl_idx, descr_size);
6d2f42dac8a703 Sandeep Singh 2020-08-09  162            if 
(!cl_data->report_descr_sz[i])
6d2f42dac8a703 Sandeep Singh 2020-08-09  163                    return -EINVAL;
6d2f42dac8a703 Sandeep Singh 2020-08-09  164  
6d2f42dac8a703 Sandeep Singh 2020-08-09  165            feature_report_size = 
get_descr_sz(cl_idx, feature_size);
6d2f42dac8a703 Sandeep Singh 2020-08-09  166            if 
(!feature_report_size)
6d2f42dac8a703 Sandeep Singh 2020-08-09  167                    return -EINVAL;
6d2f42dac8a703 Sandeep Singh 2020-08-09  168  
6d2f42dac8a703 Sandeep Singh 2020-08-09  169            input_report_size =  
get_descr_sz(cl_idx, input_size);
6d2f42dac8a703 Sandeep Singh 2020-08-09  170            if (!input_report_size)
6d2f42dac8a703 Sandeep Singh 2020-08-09  171                    return -EINVAL;
6d2f42dac8a703 Sandeep Singh 2020-08-09  172  
6d2f42dac8a703 Sandeep Singh 2020-08-09  173            
cl_data->feature_report[i] = kzalloc(feature_report_size, GFP_KERNEL);
6d2f42dac8a703 Sandeep Singh 2020-08-09  174            if 
(!cl_data->feature_report[i])
6d2f42dac8a703 Sandeep Singh 2020-08-09  175                    return -ENOMEM;
6d2f42dac8a703 Sandeep Singh 2020-08-09  176  
6d2f42dac8a703 Sandeep Singh 2020-08-09  177            
cl_data->input_report[i] = kzalloc(input_report_size, GFP_KERNEL);
6d2f42dac8a703 Sandeep Singh 2020-08-09  178            if 
(!cl_data->input_report[i])
6d2f42dac8a703 Sandeep Singh 2020-08-09  179                    return -ENOMEM;
6d2f42dac8a703 Sandeep Singh 2020-08-09  180  
6d2f42dac8a703 Sandeep Singh 2020-08-09  181            info.period = PERIOD;
6d2f42dac8a703 Sandeep Singh 2020-08-09  182            info.sensor_idx = 
cl_idx;
6d2f42dac8a703 Sandeep Singh 2020-08-09  183            info.phys_address = 
cl_data->sensor_phys_addr[i];
6d2f42dac8a703 Sandeep Singh 2020-08-09  184  
6d2f42dac8a703 Sandeep Singh 2020-08-09  185            
cl_data->report_descr[i] = kzalloc(cl_data->report_descr_sz[i], GFP_KERNEL);
6d2f42dac8a703 Sandeep Singh 2020-08-09  186            if 
(!cl_data->report_descr[i])
6d2f42dac8a703 Sandeep Singh 2020-08-09  187                    return -ENOMEM;
6d2f42dac8a703 Sandeep Singh 2020-08-09  188  
6d2f42dac8a703 Sandeep Singh 2020-08-09  189            rc = 
get_report_descriptor(cl_idx, cl_data->report_descr[i]);
6d2f42dac8a703 Sandeep Singh 2020-08-09  190            rc = 
amdtp_hid_probe(cl_data->cur_hid_dev, cl_data);
6d2f42dac8a703 Sandeep Singh 2020-08-09  191            
amd_start_sensor(privdata, info);
6d2f42dac8a703 Sandeep Singh 2020-08-09  192            cl_data->sensor_sts[i] 
= 1;
6d2f42dac8a703 Sandeep Singh 2020-08-09  193    }
6d2f42dac8a703 Sandeep Singh 2020-08-09  194    privdata->cl_data = cl_data;
6d2f42dac8a703 Sandeep Singh 2020-08-09  195    
schedule_delayed_work(&cl_data->work_buffer, PERIOD);
6d2f42dac8a703 Sandeep Singh 2020-08-09  196    return 0;
6d2f42dac8a703 Sandeep Singh 2020-08-09  197  }
6d2f42dac8a703 Sandeep Singh 2020-08-09  198  

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0-DAY CI Kernel Test Service, Intel Corporation
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