Hi Nathan, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git queue/5.10 head: a0e5648b46a984339e8c472bfe5da299dd65fc3b commit: f7121692795c654b52b460a11107a87285bb1dcd [6492/9999] hexagon: handle {,SOFT}IRQENTRY_TEXT in linker script config: hexagon-randconfig-r041-20211215 (https://download.01.org/0day-ci/archive/20211215/202112151422.M34sDTRZ-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project b6a2ddb6c8ac29412b1361810972e15221fa021c) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.gi... git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc queue/5.10 git checkout f7121692795c654b52b460a11107a87285bb1dcd # 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=hexagon SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>, old ones prefixed by <<): ERROR: modpost: "__raw_writesl" [drivers/i3c/master/i3c-master-cdns.ko] undefined! ERROR: modpost: "__raw_readsl" [drivers/i3c/master/i3c-master-cdns.ko] undefined! Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for BTRFS_FS Depends on BLOCK && !PPC_256K_PAGES && !PAGE_SIZE_256KB Selected by - TEST_KMOD && RUNTIME_TESTING_MENU && m && MODULES && NETDEVICES && NET_CORE && INET && BLOCK --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org