Hi Alex, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 344178334b0971a1ad5f36b76d7b739400e46ec6 commit: 476b70b4d1adff4465e9ff68021c52858555ac28 PCI: keystone: Enable compile-testing on !ARM date: 4 months ago config: x86_64-randconfig-a012-20210313 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 7b153b43d3a14d76975039408c4b922beb576735) 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 476b70b4d1adff4465e9ff68021c52858555ac28 # 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 >>): static const struct of_device_id ks_pcie_of_match[] = { ^ 1 warning generated. vim +/ks_pcie_of_match +1127 drivers/pci/controller/dwc/pci-keystone.c 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1126 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 @1127 static const struct of_device_id ks_pcie_of_match[] = { 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1128 { 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1129 .type = "pci", 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1130 .data = &ks_pcie_rc_of_data, 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1131 .compatible = "ti,keystone-pcie", 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1132 }, 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1133 { 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1134 .data = &ks_pcie_am654_rc_of_data, 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1135 .compatible = "ti,am654-pcie-rc", 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1136 }, 23284ad677a94f Kishon Vijay Abraham I 2019-03-25 1137 { 23284ad677a94f Kishon Vijay Abraham I 2019-03-25 1138 .data = &ks_pcie_am654_ep_of_data, 23284ad677a94f Kishon Vijay Abraham I 2019-03-25 1139 .compatible = "ti,am654-pcie-ep", 23284ad677a94f Kishon Vijay Abraham I 2019-03-25 1140 }, 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1141 { }, 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1142 }; 18b0415bc802a8 Kishon Vijay Abraham I 2019-03-25 1143 :::::: The code at line 1127 was first introduced by commit :::::: 18b0415bc802a8bab5dedba5ae2757e83259e6ee PCI: keystone: Add support for PCIe RC in AM654x Platforms :::::: TO: Kishon Vijay Abraham I <kishon(a)ti.com&gt; :::::: CC: Lorenzo Pieralisi <lorenzo.pieralisi(a)arm.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org