reproduce: # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/87c1c3295162317b54ae105dcfdb750461d48f02 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Ping-Gan/nvmet-Add-nvme-target-polling-queue-task-parameters/20230913-164112 git checkout 87c1c3295162317b54ae105dcfdb750461d48f02 # 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=x86_64 olddefconfig make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/nvme/target/