reproduce (this is a W=1 build): git checkout 7475ea8b58616b33c04afb976cf0fbaad9dd63fb b4 shazam https://lore.kernel.org/r/20261110-i2c-sysc-v1-1-8945eb1d38f0@kemnade.info # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # clang-24 might not be officially released. Try a lower version if installation fails. git clone https://github.com/intel/lkp-tests.git ~/lkp-tests # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-24 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-24 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/bus/