reproduce (this is a W=1 build):
        # https://github.com/cilium/linux/commit/2c5555038196a4907f205f412de7e09d17c5ee2f
        git remote add cilium https://github.com/cilium/linux.git
        git fetch --no-tags cilium pr/misc-patches
        git checkout 2c5555038196a4907f205f412de7e09d17c5ee2f
        # 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