reproduce (this is a W=1 build):
        git checkout 052d534373b7ed33712a63d5e17b2b6cdbce84fd
        b4 shazam https://lore.kernel.org/r/20240116073701.2356171-3-leobras@redhat.com
        # 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/tty/serial/8250/