tree 6c966440661a678aea2082cf72c1bee0886a0a57
parent c8a19c91b5b488fed8cce04200a84c6a35c0bf0c
author Nicolas Pitre <nico@cam.org> 1131839240 +1100
committer David S. Miller <davem@sunset.davemloft.net> 1136844941 -0800

[CRYPTO] sha1: Avoid useless memcpy()

The current code unconditionally copy the first block for every call to
sha1_update().  This can be avoided if there is no pending partial block.
This is always the case on the first call to sha1_update() (if the length
is >= 64 of course.

Furthermore, temp does need to be called if sha_transform is never invoked.
Also consolidate the sha_transform calls into one to reduce code size.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>