linux-kernel - Re: [PATCH v5 2/2] usb: dwc3: add generic driver to support flattened

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <202507060206.iiBP6CQi-lkp@intel.com>
Date: Sun, 6 Jul 2025 02:46:11 +0800
From: kernel test robot <lkp@...el.com>
To: Ze Huang <huang.ze@...ux.dev>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Yixun Lan <dlan@...too.org>,
	Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
	Philipp Zabel <p.zabel@...gutronix.de>
Cc: oe-kbuild-all@...ts.linux.dev, linux-usb@...r.kernel.org,
	devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
	spacemit@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Ze Huang <huang.ze@...ux.dev>
Subject: Re: [PATCH v5 2/2] usb: dwc3: add generic driver to support flattened

Hi Ze,

kernel test robot noticed the following build warnings:

[auto build test WARNING on d9946fe286439c2aeaa7953b8c316efe5b83d515]

url:    https://github.com/intel-lab-lkp/linux/commits/Ze-Huang/dt-bindings-usb-dwc3-add-support-for-SpacemiT-K1/20250705-210419
base:   d9946fe286439c2aeaa7953b8c316efe5b83d515
patch link:    https://lore.kernel.org/r/20250705-dwc3_generic-v5-2-9dbc53ea53d2%40linux.dev
patch subject: [PATCH v5 2/2] usb: dwc3: add generic driver to support flattened
config: arc-randconfig-001-20250706 (https://download.01.org/0day-ci/archive/20250706/202507060206.iiBP6CQi-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250706/202507060206.iiBP6CQi-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507060206.iiBP6CQi-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/usb/dwc3/dwc3-generic-plat.c:151:12: warning: 'dwc3_generic_runtime_idle' defined but not used [-Wunused-function]
    static int dwc3_generic_runtime_idle(struct device *dev)
               ^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/usb/dwc3/dwc3-generic-plat.c:144:12: warning: 'dwc3_generic_runtime_resume' defined but not used [-Wunused-function]
    static int dwc3_generic_runtime_resume(struct device *dev)
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/usb/dwc3/dwc3-generic-plat.c:137:12: warning: 'dwc3_generic_runtime_suspend' defined but not used [-Wunused-function]
    static int dwc3_generic_runtime_suspend(struct device *dev)
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/usb/dwc3/dwc3-generic-plat.c:121:12: warning: 'dwc3_generic_resume' defined but not used [-Wunused-function]
    static int dwc3_generic_resume(struct device *dev)
               ^~~~~~~~~~~~~~~~~~~
>> drivers/usb/dwc3/dwc3-generic-plat.c:107:12: warning: 'dwc3_generic_suspend' defined but not used [-Wunused-function]
    static int dwc3_generic_suspend(struct device *dev)
               ^~~~~~~~~~~~~~~~~~~~


vim +/dwc3_generic_runtime_idle +151 drivers/usb/dwc3/dwc3-generic-plat.c

   106	
 > 107	static int dwc3_generic_suspend(struct device *dev)
   108	{
   109		struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
   110		int ret;
   111	
   112		ret = dwc3_pm_suspend(&dwc3->dwc);
   113		if (ret)
   114			return ret;
   115	
   116		clk_bulk_disable_unprepare(dwc3->num_clocks, dwc3->clks);
   117	
   118		return 0;
   119	}
   120	
 > 121	static int dwc3_generic_resume(struct device *dev)
   122	{
   123		struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
   124		int ret;
   125	
   126		ret = clk_bulk_prepare_enable(dwc3->num_clocks, dwc3->clks);
   127		if (ret)
   128			return ret;
   129	
   130		ret = dwc3_pm_resume(&dwc3->dwc);
   131		if (ret)
   132			return ret;
   133	
   134		return 0;
   135	}
   136	
 > 137	static int dwc3_generic_runtime_suspend(struct device *dev)
   138	{
   139		struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
   140	
   141		return dwc3_runtime_suspend(&dwc3->dwc);
   142	}
   143	
 > 144	static int dwc3_generic_runtime_resume(struct device *dev)
   145	{
   146		struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
   147	
   148		return dwc3_runtime_resume(&dwc3->dwc);
   149	}
   150	
 > 151	static int dwc3_generic_runtime_idle(struct device *dev)
   152	{
   153		struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
   154	
   155		return dwc3_runtime_idle(&dwc3->dwc);
   156	}
   157	

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