reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # https://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git/commit/?id=cbae4d3dd2f7f01fa8fa807c70ad2b304279fd87
        git remote add andi-shyti https://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git
        git fetch --no-tags andi-shyti i2c/i2c-host-next
        git checkout cbae4d3dd2f7f01fa8fa807c70ad2b304279fd87
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash drivers/i2c/busses/