reproduce (this is a W=1 build):
        git remote add linux-nvme git://git.infradead.org/nvme.git
        git fetch linux-nvme nvme-6.8
        git checkout linux-nvme/nvme-6.8
        b4 shazam https://lore.kernel.org/r/20231218153105.12717-16-dwagner@suse.de
        # 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/