reproduce (this is a W=1 build):
        git remote add clk https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git
        git fetch clk clk-next
        git checkout clk/clk-next
        b4 shazam https://lore.kernel.org/r/20250929023621.1968-1-vulab@iscas.ac.cn
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/clk/mediatek/