tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto head: 2e228f3df9479e9e061cc7e0b7aba0c071ea22bf commit: 2e228f3df9479e9e061cc7e0b7aba0c071ea22bf [1/1] REVERT-ME: Temporary Enable D0i3 flow for PSE IOs config: x86_64-randconfig-a006-20210713 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8d69635ed9ecf36fd0ca85906bfde17949671cbe) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/intel/linux-intel-lts/commit/2e228f3df9479e9e061cc7e0b... git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-linux-intel-lts 5.4/yocto git checkout 2e228f3df9479e9e061cc7e0b7aba0c071ea22bf # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): u32 cgsr_reg; ^ 1 warning generated. vim +/cgsr_reg +808 drivers/counter/intel-qep.c 800 801 #ifdef CONFIG_PM 802 static int intel_qep_runtime_suspend(struct device *dev) 803 { 804 struct pci_dev *pdev = container_of(dev, struct pci_dev, dev); 805 struct intel_qep *qep = pci_get_drvdata(pdev); 806 unsigned long j0, j1, delay; 807 u32 d0i3c_reg; 809 810 delay = msecs_to_jiffies(100); 811 j0 = jiffies; 812 j1 = j0 + delay; 813 814 cgsr_reg = intel_qep_readl(qep->regs, INTEL_QEP_CGSR); 815 intel_qep_writel(qep->regs, INTEL_QEP_CGSR, INTEL_QEP_CGSR_CG); 816 817 d0i3c_reg = intel_qep_readl(qep->regs, INTEL_QEP_D0I3C); 818 819 if (d0i3c_reg & INTEL_QEP_D0I3_CIP) { 820 dev_info(dev, "%s d0i3c CIP detected", __func__); 821 } else { 822 intel_qep_writel(qep->regs, INTEL_QEP_D0I3C, INTEL_QEP_D0I3_EN); 823 d0i3c_reg = intel_qep_readl(qep->regs, INTEL_QEP_D0I3C); 824 } 825 826 while (time_before(jiffies, j1)) { 827 d0i3c_reg = intel_qep_readl(qep->regs, INTEL_QEP_D0I3C); 828 if (!(d0i3c_reg & INTEL_QEP_D0I3_CIP)) 829 break; 830 } 831 832 if (d0i3c_reg & INTEL_QEP_D0I3_CIP) 833 dev_info(dev, "%s: timeout waiting CIP to be cleared", 834 __func__); 835 return 0; 836 } 837 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org