Hi Mr. Ro Bot, On Sun, Sep 16, 2018 at 1:14 AM kbuild test robot <lkp@xxxxxxxxx> wrote: > crypto/chacha20_zinc.o: In function `crypto_chacha20_crypt': > >> crypto/chacha20_zinc.c:55: undefined reference to `chacha20' Looks like my Kconfig change didn't get squashed in as intended. Fixed for v5. Thanks, Jason