Hi Arnd, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f1baf68e1383f6ed93eb9cff2866d46562607a43 commit: b408b611eb951594691abfee8ca687b405d27757 mips: ar7: convert to CONFIG_COMMON_CLK date: 8 months ago config: mips-buildonly-randconfig-r001-20220211 (https://download.01.org/0day-ci/archive/20220211/202202111412.5iSkckar-lk...) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project f6685f774697c85d6a352dcea013f46a99f9fe31) 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 mips cross compiling tool for clang build # apt-get install binutils-mips-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 b408b611eb951594691abfee8ca687b405d27757 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/media/platform/atmel/ drivers/media/platform/marvell-ccic/ 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 mmpcam_of_match[] = { ^ 1 warning generated. vim +/mmpcam_of_match +366 drivers/media/platform/marvell-ccic/mmp-driver.c bb0a896e3d5083 drivers/media/video/marvell-ccic/mmp-driver.c Jonathan Corbet 2011-12-30 365 83c40e6611ec1e drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-05-28 @366 static const struct of_device_id mmpcam_of_match[] = { 83c40e6611ec1e drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-05-28 367 { .compatible = "marvell,mmp2-ccic", }, 83c40e6611ec1e drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-05-28 368 {}, 83c40e6611ec1e drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-05-28 369 }; 08aac0e32fe44b drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-07-22 370 MODULE_DEVICE_TABLE(of, mmpcam_of_match); 67a8dbbc4e04cd drivers/media/video/marvell-ccic/mmp-driver.c Jonathan Corbet 2011-06-11 371 :::::: The code at line 366 was first introduced by commit :::::: 83c40e6611ec1e548ece34f6940f516333abc16a media: marvell-ccic/mmp: add devicetree support :::::: TO: Lubomir Rintel <lkundrak(a)v3.sk&gt; :::::: CC: Mauro Carvalho Chehab <mchehab+samsung(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org