reproduce (this is a W=1 build):
        git remote add hch-configfs git://git.infradead.org/users/hch/configfs.git
        git fetch hch-configfs for-next
        git checkout hch-configfs/for-next
        b4 shazam https://lore.kernel.org/r/20231115185439.2616073-1-yzhong@purestorage.com
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/nvme/host/