diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2016-06-20 13:19:17 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-06-23 18:13:58 +0800 |
| commit | 7ea0da1d75e0d03f9ec484d2038e3caf06024b17 (patch) | |
| tree | c06c61555e5a6b5af77fa119dbd727e2d14d955f /arch/x86/crypto | |
| parent | fd2efd93b6fcd981263477298cf1544b46683378 (diff) | |
crypto: chacha20-simd - Use generic code for small requests
On 16-byte requests the optimised version is actually slower than
the generic code, so we should simply use that instead.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cheers,
Diffstat (limited to 'arch/x86/crypto')
| -rw-r--r-- | arch/x86/crypto/chacha20_glue.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/crypto/chacha20_glue.c b/arch/x86/crypto/chacha20_glue.c index 2d5c2e0bd939..f910d1d449f0 100644 --- a/arch/x86/crypto/chacha20_glue.c +++ b/arch/x86/crypto/chacha20_glue.c @@ -70,7 +70,7 @@ static int chacha20_simd(struct blkcipher_desc *desc, struct scatterlist *dst, struct blkcipher_walk walk; int err; - if (!may_use_simd()) + if (nbytes <= CHACHA20_BLOCK_SIZE || !may_use_simd()) return crypto_chacha20_crypt(desc, dst, src, nbytes); state = (u32 *)roundup((uintptr_t)state_buf, CHACHA20_STATE_ALIGN); |