reproduce (this is a W=1 build):
        # https://github.com/bvanassche/linux/commit/ea8688494a0addd615787accc07b434f4686e20a
        git remote add bvanassche https://github.com/bvanassche/linux
        git fetch --no-tags bvanassche ufs-lrbp-as-priv-data
        git checkout ea8688494a0addd615787accc07b434f4686e20a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/scsi/