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| author |   Nicolas Pitre <nico@cam.org> | 2005-11-13 11:17:33 +1100 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2006-01-09 14:15:46 -0800 |
| commit | fa9b98fdab5b57ecb4dd3d6c2489e262af458c44 (patch) | |
| tree | 454d374f957985d5931378d86090b6aca5bbc877 /crypto/cipher.c | |
| parent | [CRYPTO] sha1: Rename i/j to done/partial (diff) | |
| download | linux-dev-fa9b98fdab5b57ecb4dd3d6c2489e262af458c44.tar.xz linux-dev-fa9b98fdab5b57ecb4dd3d6c2489e262af458c44.zip | |
[CRYPTO] sha1: Avoid shifting count left and right
This patch avoids shifting the count left and right needlessly for each
call to sha1_update(). It instead can be done only once at the end in
sha1_final().
Keeping the previous test example (sha1_update() successively called with
len=64), a 1.3% performance increase can be observed on i386, or 0.2% on
ARM. The generated code is also smaller on ARM.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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