aes_xts_encrypt
aes_xts_encrypt((caddr_t)&ctx, block);
void aes_xts_encrypt(caddr_t, u_int8_t *);
aes_xts_encrypt,
void aes_xts_encrypt(caddr_t, u_int8_t *);
aes_xts_encrypt(&ctx, my->buf + j);
void aes_xts_encrypt(struct aes_xts_ctx *, u_int8_t *);