Re: [PATCH v3 1/2] gnss: ubx: customize serial device open to set U-Blox Zed-F9P baud

[kernel test robot <lkp@intel.com>]

Hi,

kernel test robot noticed the following build errors:

[auto build test ERROR on robh/for-next]
[also build test ERROR on linus/master v6.3 next-20230505]
[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/alison-she-devel-com/dt-bindings-gnss-Add-U-Blox-Zed-F9/20230507-075854
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20230506225849.2752103-2-alison%40she-devel.com
patch subject: [PATCH v3 1/2] gnss: ubx: customize serial device open to set U-Blox Zed-F9P baud
config: i386-randconfig-a001 (https://download.01.org/0day-ci/archive/20230507/202305070938.8vWQFfIQ-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/637fad08b78d20ec3f1c07e6e37dc97f85eac7b9
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review alison-she-devel-com/dt-bindings-gnss-Add-U-Blox-Zed-F9/20230507-075854
        git checkout 637fad08b78d20ec3f1c07e6e37dc97f85eac7b9
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305070938.8vWQFfIQ-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/gnss/ubx.c: In function 'ubx_probe':
>> drivers/gnss/ubx.c:303:42: error: 'ubx_of_match' undeclared (first use in this function)
     303 |         data->features = of_match_device(ubx_of_match, &serdev->dev)->data;
         |                                          ^~~~~~~~~~~~
   drivers/gnss/ubx.c:303:42: note: each undeclared identifier is reported only once for each function it appears in
   At top level:
   drivers/gnss/ubx.c:176:12: warning: 'zed_f9p_serial_open' defined but not used [-Wunused-function]
     176 | static int zed_f9p_serial_open(struct gnss_device *gdev)
         |            ^~~~~~~~~~~~~~~~~~~


vim +/ubx_of_match +303 drivers/gnss/ubx.c

   278	
   279	static int ubx_probe(struct serdev_device *serdev)
   280	{
   281		struct gnss_serial *gserial;
   282		struct ubx_data *data;
   283		struct gnss_operations *ubx_gnss_ops;
   284		int ret;
   285	
   286		gserial = gnss_serial_allocate(serdev, sizeof(*data));
   287		if (IS_ERR(gserial)) {
   288			ret = PTR_ERR(gserial);
   289			return ret;
   290		}
   291		ubx_gnss_ops = kzalloc(sizeof(struct gnss_operations), GFP_KERNEL);
   292		if (IS_ERR(ubx_gnss_ops)) {
   293			ret = PTR_ERR(ubx_gnss_ops);
   294			return ret;
   295		}
   296	
   297		gserial->ops = &ubx_gserial_ops;
   298	
   299		gserial->gdev->type = GNSS_TYPE_UBX;
   300	
   301		data = gnss_serial_get_drvdata(gserial);
   302		data->is_configured = 0;
 > 303		data->features = of_match_device(ubx_of_match, &serdev->dev)->data;
   304		if (data->features && data->features->open) {
   305			ubx_gnss_ops->open  = data->features->open;
   306			ubx_gnss_ops->close = gserial->gdev->ops->close;
   307			ubx_gnss_ops->write_raw = gserial->gdev->ops->write_raw;
   308			gserial->gdev->ops = ubx_gnss_ops;
   309		}
   310	
   311		data->vcc = devm_regulator_get(&serdev->dev, "vcc");
   312		if (IS_ERR(data->vcc)) {
   313			ret = PTR_ERR(data->vcc);
   314			goto err_free_gserial;
   315		}
   316	
   317		data->v_bckp = devm_regulator_get_optional(&serdev->dev, "v-bckp");
   318		if (IS_ERR(data->v_bckp)) {
   319			ret = PTR_ERR(data->v_bckp);
   320			if (ret == -ENODEV)
   321				data->v_bckp = NULL;
   322			else
   323				goto err_free_gserial;
   324		}
   325	
   326		if (data->v_bckp) {
   327			ret = regulator_enable(data->v_bckp);
   328			if (ret)
   329				goto err_free_gserial;
   330		}
   331	
   332		ret = gnss_serial_register(gserial);
   333		if (ret)
   334			goto err_disable_v_bckp;
   335	
   336		return 0;
   337	
   338	err_disable_v_bckp:
   339		if (data->v_bckp)
   340			regulator_disable(data->v_bckp);
   341	err_free_gserial:
   342		gnss_serial_free(gserial);
   343	
   344		return ret;
   345	}
   346	

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