tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 674dc447b09fb668976c6ab1356b11e02ff209ed commit: ec527f23e06a0521cd5b043aa31a4ccdf6cea549 [2881/4780] bus: ti-sysc: Fix am335x resume hang for usb otg module config: arm-randconfig-r035-20210524 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 93d1e5822ed64abd777eb94ea9899e96c4c39fbe) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=ec527f23e06a0521cd5b043aa31a4ccdf6cea549 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout ec527f23e06a0521cd5b043aa31a4ccdf6cea549 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/bus/ti-sysc.c:1398:13: warning: variable 'error' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] } else if (ddata->needs_resume) { ^~~~~~~~~~~~~~~~~~~ drivers/bus/ti-sysc.c:1406:9: note: uninitialized use occurs here return error; ^~~~~ drivers/bus/ti-sysc.c:1398:9: note: remove the 'if' if its condition is always true } else if (ddata->needs_resume) { ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/bus/ti-sysc.c:1386:11: note: initialize the variable 'error' to silence this warning int error; ^ = 0 1 warning generated. vim +1398 drivers/bus/ti-sysc.c 1382 1383 static int __maybe_unused sysc_noirq_resume(struct device *dev) 1384 { 1385 struct sysc *ddata; 1386 int error; 1387 1388 ddata = dev_get_drvdata(dev); 1389 1390 if (ddata->cfg.quirks & 1391 (SYSC_QUIRK_LEGACY_IDLE | SYSC_QUIRK_NO_IDLE)) 1392 return 0; 1393 1394 if (ddata->cfg.quirks & SYSC_QUIRK_REINIT_ON_RESUME) { 1395 error = sysc_reinit_module(ddata, ddata->needs_resume); 1396 if (error) 1397 dev_warn(dev, "noirq_resume failed: %i\n", error); > 1398 } else if (ddata->needs_resume) { 1399 error = sysc_runtime_resume(dev); 1400 if (error) 1401 dev_warn(dev, "noirq_resume failed: %i\n", error); 1402 } 1403 1404 ddata->needs_resume = 0; 1405 1406 return error; 1407 } 1408 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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