reproduce: # apt-get install sparse # sparse version: v0.6.4-61-g09411a7a-dirty # https://github.com/intel-lab-lkp/linux/commit/8de26fa4a3143ea39b5dc3fc063282df99cd4963 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Lorenzo-Bianconi/net-add-generic-percpu-page_pool-allocator/20240202-162516 git checkout 8de26fa4a3143ea39b5dc3fc063282df99cd4963 # 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 net/core/