reproduce (this is a W=1 build):
        git checkout ff0843ceb1fb11a6b73e0e77b932ef7967aecd4b
        b4 shazam https://lore.kernel.org/r/20260314-iio-adc-ti-adc161s626-fix-scan-buf-v1-2-56243b11e87b@baylibre.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=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/iio/adc/