reproduce: # apt-get install sparse # sparse version: v0.6.4-66-g0196afe1 git remote add android-common https://android.googlesource.com/kernel/common git fetch --no-tags android-common android15-6.6-desktop git checkout 7dc041f752219f0bd30a5e9868135f6ef38ac7bb # 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=i386 olddefconfig make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__ -fmax-errors=unlimited -fmax-warnings=unlimited' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/md/ kernel/events/ mm/