reproduce: # apt-get install sparse # sparse version: v0.6.4-47-g365b9520-dirty # https://github.com/intel-lab-lkp/linux/commit/fa7d89055e669e0a08f557060e88e78bba69f4d3 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Xuan-Zhuo/virtio_net-introduce-device-stats-feature-and-structures/20231226-153227 git checkout fa7d89055e669e0a08f557060e88e78bba69f4d3 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__ -fmax-errors=unlimited -fmax-warnings=unlimited' O=build_dir ARCH=x86_64 olddefconfig make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__ -fmax-errors=unlimited -fmax-warnings=unlimited' O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/net/