reproduce (this is a W=1 build):
        git checkout 93f51579e7df248780214094418f205253383cc5
        b4 shazam https://lore.kernel.org/r/20261106-lz4-vendor-upstream-v2-10-ee04c3f0d7dc@samsung.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=$HOME/0day COMPILER=gcc-16.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-16.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash lib/lz4/