linux-kernel - Re: [PATCH v3 8/9] serial: qcom-geni: Enable PM runtime for serial driver

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Message-ID: <202505071523.FhPMXslL-lkp@intel.com>
Date: Wed, 7 May 2025 15:58:14 +0800
From: kernel test robot <lkp@...el.com>
To: Praveen Talari <quic_ptalari@...cinc.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
	Stephen Boyd <sboyd@...nel.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org, devicetree@...r.kernel.org,
	linux-pm@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, psodagud@...cinc.com, djaggi@...cinc.com,
	quic_msavaliy@...cinc.com, quic_vtanuku@...cinc.com,
	quic_arandive@...cinc.com, quic_mnaresh@...cinc.com,
	quic_shazhuss@...cinc.com
Subject: Re: [PATCH v3 8/9] serial: qcom-geni: Enable PM runtime for serial
 driver

Hi Praveen,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 3e039dcc9c1320c0d33ddd51c372dcc91d3ea3c7]

url:    https://github.com/intel-lab-lkp/linux/commits/Praveen-Talari/opp-add-new-helper-API-dev_pm_opp_set_level/20250502-111540
base:   3e039dcc9c1320c0d33ddd51c372dcc91d3ea3c7
patch link:    https://lore.kernel.org/r/20250502031018.1292-9-quic_ptalari%40quicinc.com
patch subject: [PATCH v3 8/9] serial: qcom-geni: Enable PM runtime for serial driver
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20250507/202505071523.FhPMXslL-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250507/202505071523.FhPMXslL-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/202505071523.FhPMXslL-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/tty/serial/qcom_geni_serial.c:1876:12: warning: 'qcom_geni_serial_runtime_resume' defined but not used [-Wunused-function]
    1876 | static int qcom_geni_serial_runtime_resume(struct device *dev)
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/tty/serial/qcom_geni_serial.c:1868:12: warning: 'qcom_geni_serial_runtime_suspend' defined but not used [-Wunused-function]
    1868 | static int qcom_geni_serial_runtime_suspend(struct device *dev)
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/qcom_geni_serial_runtime_resume +1876 drivers/tty/serial/qcom_geni_serial.c

  1867	
> 1868	static int qcom_geni_serial_runtime_suspend(struct device *dev)
  1869	{
  1870		struct qcom_geni_serial_port *port = dev_get_drvdata(dev);
  1871		struct uart_port *uport = &port->uport;
  1872	
  1873		return geni_serial_resources_off(uport);
  1874	};
  1875	
> 1876	static int qcom_geni_serial_runtime_resume(struct device *dev)
  1877	{
  1878		struct qcom_geni_serial_port *port = dev_get_drvdata(dev);
  1879		struct uart_port *uport = &port->uport;
  1880	
  1881		return geni_serial_resources_on(uport);
  1882	};
  1883	

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