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Date:   Sun, 9 Aug 2020 20:12:56 +0800
From:   kernel test robot <lkp@...el.com>
To:     Sandeep Singh <Sandeep.Singh@....com>, jikos@...nel.org,
        benjamin.tissoires@...hat.com, linux-kernel@...r.kernel.org,
        linux-input@...r.kernel.org, srinivas.pandruvada@...ux.intel.com,
        jic23@...nel.org, linux-iio@...r.kernel.org, hdegoede@...hat.com,
        Nehal-bakulchandra.Shah@....com, andy.shevchenko@...il.com
Cc:     kbuild-all@...ts.01.org
Subject: Re: [PATCH v6 4/4] SFH: Create HID report to Enable support of AMD
 sensor fusion Hub (SFH)

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 <lkp@...el.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  

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

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