linux-kernel - Re: [PATCH v1 12/12] i2c: qcom-geni: Enable I2C on SA8255p Qualcomm platforms

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] [day] [month] [year] [list]

Message-ID: <202511231944.MieDLdu8-lkp@intel.com>
Date: Sun, 23 Nov 2025 19:46:10 +0800
From: kernel test robot <lkp@...el.com>
To: Praveen Talari <praveen.talari@....qualcomm.com>,
	Andi Shyti <andi.shyti@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Mukesh Kumar Savaliya <mukesh.savaliya@....qualcomm.com>,
	Viken Dadhaniya <viken.dadhaniya@....qualcomm.com>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	linux-arm-msm@...r.kernel.org, linux-i2c@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: llvm@...ts.linux.dev, 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_shazhuss@...cinc.com
Subject: Re: [PATCH v1 12/12] i2c: qcom-geni: Enable I2C on SA8255p Qualcomm
 platforms

Hi Praveen,

kernel test robot noticed the following build warnings:

[auto build test WARNING on d724c6f85e80a23ed46b7ebc6e38b527c09d64f5]

url:    https://github.com/intel-lab-lkp/linux/commits/Praveen-Talari/soc-qcom-geni-se-Refactor-geni_icc_get-and-make-qup-memory-ICC-path-optional/20251122-130449
base:   d724c6f85e80a23ed46b7ebc6e38b527c09d64f5
patch link:    https://lore.kernel.org/r/20251122050018.283669-13-praveen.talari%40oss.qualcomm.com
patch subject: [PATCH v1 12/12] i2c: qcom-geni: Enable I2C on SA8255p Qualcomm platforms
config: loongarch-randconfig-002-20251123 (https://download.01.org/0day-ci/archive/20251123/202511231944.MieDLdu8-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251123/202511231944.MieDLdu8-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/202511231944.MieDLdu8-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/i2c/busses/i2c-qcom-geni.c:1176:6: warning: variable 'ret' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
    1176 |         if (gi2c->dev_data->power_state) {
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/i2c/busses/i2c-qcom-geni.c:1185:9: note: uninitialized use occurs here
    1185 |         return ret;
         |                ^~~
   drivers/i2c/busses/i2c-qcom-geni.c:1176:2: note: remove the 'if' if its condition is always true
    1176 |         if (gi2c->dev_data->power_state) {
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/i2c/busses/i2c-qcom-geni.c:1171:9: note: initialize the variable 'ret' to silence this warning
    1171 |         int ret;
         |                ^
         |                 = 0
   drivers/i2c/busses/i2c-qcom-geni.c:1193:6: warning: variable 'ret' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
    1193 |         if (gi2c->dev_data->power_state) {
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/i2c/busses/i2c-qcom-geni.c:1202:9: note: uninitialized use occurs here
    1202 |         return ret;
         |                ^~~
   drivers/i2c/busses/i2c-qcom-geni.c:1193:2: note: remove the 'if' if its condition is always true
    1193 |         if (gi2c->dev_data->power_state) {
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/i2c/busses/i2c-qcom-geni.c:1190:9: note: initialize the variable 'ret' to silence this warning
    1190 |         int ret;
         |                ^
         |                 = 0
   2 warnings generated.


vim +1176 drivers/i2c/busses/i2c-qcom-geni.c

  1168	
  1169	static int __maybe_unused geni_i2c_runtime_suspend(struct device *dev)
  1170	{
  1171		int ret;
  1172		struct geni_i2c_dev *gi2c = dev_get_drvdata(dev);
  1173	
  1174		disable_irq(gi2c->irq);
  1175	
> 1176		if (gi2c->dev_data->power_state) {
  1177			ret = gi2c->dev_data->power_state(&gi2c->se, false);
  1178			if (ret) {
  1179				enable_irq(gi2c->irq);
  1180				return ret;
  1181			}
  1182		}
  1183	
  1184		gi2c->suspended = 1;
  1185		return ret;
  1186	}
  1187	

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