reproduce: # apt-get install sparse # sparse version: v0.6.4-61-g09411a7a-dirty # https://github.com/intel-lab-lkp/linux/commit/a5d14c042bd618304e36b724649097ff484aff64 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Fiona-Klute/wifi-rtw88-Shared-module-for-rtw8723x-devices/20240202-201428 git checkout a5d14c042bd618304e36b724649097ff484aff64 # 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/wireless/realtek/rtw88/