reproduce (this is a W=1 build): git clone https://github.com/intel/lkp-tests.git ~/lkp-tests git remote add openeuler https://gitee.com/openeuler/kernel.git git fetch --no-tags openeuler OLK-6.6 git checkout a29c130b6607ab7a2d7e6df8625494cdafc6d736 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/net/ethernet/linkdata/sxe/