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Date:   Fri, 23 Jun 2023 15:17:43 +0800
From:   kernel test robot <lkp@intel.com>
To:     Benjamin Bara <bbara93@gmail.com>,
        Matthias Kaehlcke <mka@chromium.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Benjamin Bara <benjamin.bara@skidata.com>
Cc:     oe-kbuild-all@lists.linux.dev,
        Alexander Stein <alexander.stein@ew.tq-group.com>,
        linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org
Subject: Re: [PATCH v6 1/3] usb: misc: onboard-hub: support multiple power
 supplies
Message-ID: <202306231557.18uGlgSW-lkp@intel.com>
References: <20230620-hx3-v6-1-6a1d6f8ce689@skidata.com>
MIME-Version: 1.0
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In-Reply-To: <20230620-hx3-v6-1-6a1d6f8ce689@skidata.com>
Precedence: bulk

Hi Benjamin,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 45a3e24f65e90a047bef86f927ebdc4c710edaa1]

url:    https://github.com/intel-lab-lkp/linux/commits/Benjamin-Bara/usb-misc-onboard-hub-support-multiple-power-supplies/20230623-142256
base:   45a3e24f65e90a047bef86f927ebdc4c710edaa1
patch link:    https://lore.kernel.org/r/20230620-hx3-v6-1-6a1d6f8ce689%40skidata.com
patch subject: [PATCH v6 1/3] usb: misc: onboard-hub: support multiple power supplies
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230623/202306231557.18uGlgSW-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230623/202306231557.18uGlgSW-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306231557.18uGlgSW-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/usb/misc/onboard_usb_hub.c: In function 'onboard_hub_probe':
>> drivers/usb/misc/onboard_usb_hub.c:262:59: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'unsigned int' [-Wformat=]
     262 |                 return dev_err_probe(dev, -EINVAL, "max %ld supplies supported!\n",
         |                                                         ~~^
         |                                                           |
         |                                                           long int
         |                                                         %d


vim +262 drivers/usb/misc/onboard_usb_hub.c

   240	
   241	static int onboard_hub_probe(struct platform_device *pdev)
   242	{
   243		const struct of_device_id *of_id;
   244		struct device *dev = &pdev->dev;
   245		struct onboard_hub *hub;
   246		unsigned int i;
   247		int err;
   248	
   249		hub = devm_kzalloc(dev, sizeof(*hub), GFP_KERNEL);
   250		if (!hub)
   251			return -ENOMEM;
   252	
   253		of_id = of_match_device(onboard_hub_match, &pdev->dev);
   254		if (!of_id)
   255			return -ENODEV;
   256	
   257		hub->pdata = of_id->data;
   258		if (!hub->pdata)
   259			return -EINVAL;
   260	
   261		if (hub->pdata->num_supplies > MAX_SUPPLIES)
 > 262			return dev_err_probe(dev, -EINVAL, "max %ld supplies supported!\n",
   263					     MAX_SUPPLIES);
   264	
   265		for (i = 0; i < hub->pdata->num_supplies; i++)
   266			hub->supplies[i].supply = supply_names[i];
   267	
   268		err = devm_regulator_bulk_get(dev, hub->pdata->num_supplies, hub->supplies);
   269		if (err) {
   270			dev_err(dev, "Failed to get regulator supplies: %d\n", err);
   271			return err;
   272		}
   273	
   274		hub->reset_gpio = devm_gpiod_get_optional(dev, "reset",
   275							  GPIOD_OUT_HIGH);
   276		if (IS_ERR(hub->reset_gpio))
   277			return dev_err_probe(dev, PTR_ERR(hub->reset_gpio), "failed to get reset GPIO\n");
   278	
   279		hub->dev = dev;
   280		mutex_init(&hub->lock);
   281		INIT_LIST_HEAD(&hub->udev_list);
   282	
   283		dev_set_drvdata(dev, hub);
   284	
   285		err = onboard_hub_power_on(hub);
   286		if (err)
   287			return err;
   288	
   289		/*
   290		 * The USB driver might have been detached from the USB devices by
   291		 * onboard_hub_remove() (e.g. through an 'unbind' by userspace),
   292		 * make sure to re-attach it if needed.
   293		 *
   294		 * This needs to be done deferred to avoid self-deadlocks on systems
   295		 * with nested onboard hubs.
   296		 */
   297		schedule_work(&attach_usb_driver_work);
   298	
   299		return 0;
   300	}
   301	

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