reproduce (this is a W=1 build):
        git checkout d08c85ac8894995d4b0d8fb48d2f6a3e53cd79ab
        b4 shazam https://lore.kernel.org/r/20260120065710.1120819-1-luo.liu.linux@163.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=$HOME/0day COMPILER=gcc-10.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/media/v4l2-core/