diff options
| -rw-r--r-- | crypto/chacha_generic.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/crypto/chacha_generic.c b/crypto/chacha_generic.c index 90ec0ec1b4f7..a7fae9b73ec4 100644 --- a/crypto/chacha_generic.c +++ b/crypto/chacha_generic.c @@ -22,18 +22,16 @@ static void chacha_docrypt(u32 *state, u8 *dst, const u8 *src, /* aligned to potentially speed up crypto_xor() */ u8 stream[CHACHA_BLOCK_SIZE] __aligned(sizeof(long)); - if (dst != src) - memcpy(dst, src, bytes); - while (bytes >= CHACHA_BLOCK_SIZE) { chacha_block(state, stream, nrounds); - crypto_xor(dst, stream, CHACHA_BLOCK_SIZE); + crypto_xor_cpy(dst, src, stream, CHACHA_BLOCK_SIZE); bytes -= CHACHA_BLOCK_SIZE; dst += CHACHA_BLOCK_SIZE; + src += CHACHA_BLOCK_SIZE; } if (bytes) { chacha_block(state, stream, nrounds); - crypto_xor(dst, stream, bytes); + crypto_xor_cpy(dst, src, stream, bytes); } } |