reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git/commit/?id=2b6b4bb7d96f407e42bfe28c4cd9ce8f7a59ab69 git remote add mst-vhost https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git git fetch --no-tags mst-vhost vhost git checkout 2b6b4bb7d96f407e42bfe28c4cd9ce8f7a59ab69 # clang-22 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=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-22 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash