reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # install um cross compiling tool for clang build
        # apt-get install binutils-um-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/sven/linux.git/commit/?id=ee13e23037b7b78af00901c86613bf572b53baf3
        git remote add sven https://git.kernel.org/pub/scm/linux/kernel/git/sven/linux.git
        git fetch --no-tags sven wip/smc-hid
        git checkout ee13e23037b7b78af00901c86613bf572b53baf3
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-19 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=um olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-19 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=um SHELL=/bin/bash drivers/input/misc/