reproduce: git clone https://github.com/intel/lkp-tests.git ~/lkp-tests # apt-get install sparse # sparse version: v0.6.4-66-g0196afe1-dirty # https://github.com/intel-lab-lkp/linux/commit/b3acd0ac404257dfd5fcfeea505e0a919a454354 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Richard-Gobert/net-vxlan-enable-local-address-bind-for-vxlan-sockets/20240223-045600 git checkout b3acd0ac404257dfd5fcfeea505e0a919a454354 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__ -fmax-errors=unlimited -fmax-warnings=unlimited' O=build_dir ARCH=arc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__ -fmax-errors=unlimited -fmax-warnings=unlimited' O=build_dir ARCH=arc SHELL=/bin/bash drivers/net/vxlan/