reproduce: git clone https://github.com/intel/lkp-tests.git ~/lkp-tests # apt-get install sparse # sparse version: v0.6.4-66-g0196afe1 # https://github.com/intel-lab-lkp/linux/commit/886b18fc527310c40d6632b26144cbe83baa4152 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Bitterblue-Smith/wifi-rtw89-8851b-Accept-USB-devices-and-load-their-MAC-address/20250701-045500 git checkout 886b18fc527310c40d6632b26144cbe83baa4152 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.1.0 ~/lkp-tests/kbuild/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__ -fmax-errors=unlimited -fmax-warnings=unlimited' O=build_dir ARCH=sh olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.1.0 ~/lkp-tests/kbuild/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__ -fmax-errors=unlimited -fmax-warnings=unlimited' O=build_dir ARCH=sh SHELL=/bin/bash