reproduce (this is a W=1 build): git remote add i3c https://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux.git git fetch i3c i3c/next git checkout i3c/i3c/next b4 shazam https://lore.kernel.org/r/4c4791c018d61beb9ff85ca68c5bf48940d2398e.1764663888.git.adrianhoyin.ng@altera.com 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=$HOME/0day COMPILER=gcc-8.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=powerpc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-8.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/i3c/master/ fs/