reproduce: # apt-get install sparse # sparse version: v0.6.4-47-g365b9520-dirty # https://github.com/intel-lab-lkp/linux/commit/f25c0472deffb898caf2da8da52d3ea6102d1729 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Baoquan-He/kexec_core-move-kdump-related-codes-from-crash_core-c-to-kexec_core-c/20240105-223735 git checkout f25c0472deffb898caf2da8da52d3ea6102d1729 # 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