reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue.git/commit/?id=342c35f4adfbb95a7be4bd984ee3546a594afde7
        git remote add jkirsher-net-queue https://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue.git
        git fetch --no-tags jkirsher-net-queue master
        git checkout 342c35f4adfbb95a7be4bd984ee3546a594afde7

        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=$HOME/0day COMPILER=gcc-15.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash net/unix/