reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/hare/nvme.git/commit/?id=1437df5a5209c40045e362930c5a0a4eb1c2c33a
        git remote add hare-nvme https://git.kernel.org/pub/scm/linux/kernel/git/hare/nvme.git
        git fetch --no-tags hare-nvme secure-concat.v10
        git checkout 1437df5a5209c40045e362930c5a0a4eb1c2c33a
        # 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/nvme/target/