reproduce: # apt-get install sparse # sparse version: v0.6.4-66-g0196afe1 # https://github.com/intel-lab-lkp/linux/commit/539625f3ebdcb4edbc7af31f760d237d2e960b31 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review ukasz-Bartosik/platform-chrome-Update-ChromeOS-EC-header-for-UCSI/20240910-182729 git checkout 539625f3ebdcb4edbc7af31f760d237d2e960b31 # 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/usb/typec/ucsi/