reproduce (this is a W=1 build):
        git checkout c369299895a591d96745d6492d4888259b004a9e
        b4 shazam https://lore.kernel.org/r/20260327021645.555257-87-darwi@linutronix.de
        # apt-get install llvm-dev

        # save the config file
        make W=1 ARCH=i386 olddefconfig
        make W=1 ARCH=i386 
        make W=1 headers_install
        make W=1 -C tools/testing/selftests