reproduce: # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/83316436d4ebc8ac113e710f4db675819002dae9 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review K-ry-Maincent/net-Convert-PHYs-hwtstamp-callback-to-use-kernel_hwtstamp_config/20231009-235451 git checkout 83316436d4ebc8ac113e710f4db675819002dae9 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 olddefconfig make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/phy/