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Message-ID: <202306142340.nvui81i4-lkp@intel.com>
Date:   Thu, 15 Jun 2023 00:13:21 +0800
From:   kernel test robot <lkp@...el.com>
To:     Stanley Chang <stanley_chang@...ltek.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     oe-kbuild-all@...ts.linux.dev,
        Stanley Chang <stanley_chang@...ltek.com>,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Bagas Sanjaya <bagasdotme@...il.com>,
        Matthias Kaehlcke <mka@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Flavio Suligoi <f.suligoi@...m.it>,
        Ray Chi <raychi@...gle.com>, linux-phy@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH v4 3/5] phy: realtek: usb: Add driver for the Realtek SoC
 USB 3.0 PHY

Hi Stanley,

kernel test robot noticed the following build warnings:

[auto build test WARNING on usb/usb-testing]
[also build test WARNING on usb/usb-next usb/usb-linus robh/for-next linus/master v6.4-rc6 next-20230614]
[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/Stanley-Chang/phy-realtek-usb-Add-driver-for-the-Realtek-SoC-USB-2-0-PHY/20230614-173349
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
patch link:    https://lore.kernel.org/r/20230614092850.21460-3-stanley_chang%40realtek.com
patch subject: [PATCH v4 3/5] phy: realtek: usb: Add driver for the Realtek SoC USB 3.0 PHY
config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230614/202306142340.nvui81i4-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 12.3.0
reproduce (this is a W=1 build):
        mkdir -p ~/bin
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git remote add usb https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
        git fetch usb usb-testing
        git checkout usb/usb-testing
        b4 shazam https://lore.kernel.org/r/20230614092850.21460-3-stanley_chang@realtek.com
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=sparc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=sparc SHELL=/bin/bash drivers/phy/realtek/

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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306142340.nvui81i4-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/phy/realtek/phy-rtk-usb3.c: In function 'rtk_usb3phy_probe':
>> drivers/phy/realtek/phy-rtk-usb3.c:779:29: warning: variable 'node' set but not used [-Wunused-but-set-variable]
     779 |         struct device_node *node;
         |                             ^~~~


vim +/node +779 drivers/phy/realtek/phy-rtk-usb3.c

   774	
   775	static int rtk_usb3phy_probe(struct platform_device *pdev)
   776	{
   777		struct rtk_phy *rtk_phy;
   778		struct device *dev = &pdev->dev;
 > 779		struct device_node *node;
   780		struct phy *generic_phy;
   781		struct phy_provider *phy_provider;
   782		const struct phy_cfg *phy_cfg;
   783		int ret;
   784	
   785		phy_cfg = of_device_get_match_data(dev);
   786		if (!phy_cfg) {
   787			dev_err(dev, "phy config are not assigned!\n");
   788			return -EINVAL;
   789		}
   790	
   791		rtk_phy = devm_kzalloc(dev, sizeof(*rtk_phy), GFP_KERNEL);
   792		if (!rtk_phy)
   793			return -ENOMEM;
   794	
   795		rtk_phy->dev			= &pdev->dev;
   796		rtk_phy->phy.dev		= rtk_phy->dev;
   797		rtk_phy->phy.label		= "rtk-usb3phy";
   798		rtk_phy->phy.notify_port_status = rtk_phy_notify_port_status;
   799	
   800		rtk_phy->phy_cfg = devm_kzalloc(dev, sizeof(*phy_cfg), GFP_KERNEL);
   801	
   802		memcpy(rtk_phy->phy_cfg, phy_cfg, sizeof(*phy_cfg));
   803	
   804		node = dev->of_node;
   805	
   806		rtk_phy->num_phy = 1;
   807	
   808		ret = parse_phy_data(rtk_phy);
   809		if (ret)
   810			goto err;
   811	
   812		platform_set_drvdata(pdev, rtk_phy);
   813	
   814		generic_phy = devm_phy_create(rtk_phy->dev, NULL, &ops);
   815		if (IS_ERR(generic_phy))
   816			return PTR_ERR(generic_phy);
   817	
   818		phy_set_drvdata(generic_phy, rtk_phy);
   819	
   820		phy_provider = devm_of_phy_provider_register(rtk_phy->dev, of_phy_simple_xlate);
   821		if (IS_ERR(phy_provider))
   822			return PTR_ERR(phy_provider);
   823	
   824		ret = usb_add_phy_dev(&rtk_phy->phy);
   825		if (ret)
   826			goto err;
   827	
   828		create_debug_files(rtk_phy);
   829	
   830	err:
   831		return ret;
   832	}
   833	

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

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