reproduce (this is a W=1 build):
        git checkout ce6518e61e3b4bf4f97f7ac6204049b9eba7eb75
        b4 shazam https://lore.kernel.org/r/9a4caff0336c78a7adc746786c81c9c01f89c40b.1794506262.git.chris@chrisdown.name

        # clang-24 might not be officially released. Try a lower version if installation fails.
        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=$HOME/0day COMPILER=clang-24 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=hexagon olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-24 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash mm/