crypto: sha512 - use standard ror64()
authorAlexey Dobriyan <adobriyan@gmail.com>
Sat, 14 Jan 2012 18:44:49 +0000 (21:44 +0300)
committerHerbert Xu <herbert@gondor.apana.org.au>
Sun, 15 Jan 2012 01:42:14 +0000 (12:42 +1100)
commitb85a088f15f2070b7180735a231012843a5ac96c
tree135da3920d67f5acdcd5c4315c40d98b7ff8ec7c
parent0113529f37bcd17399403c68736b8ba59c7397b7
crypto: sha512 - use standard ror64()

Use standard ror64() instead of hand-written.
There is no standard ror64, so create it.

The difference is shift value being "unsigned int" instead of uint64_t
(for which there is no reason). gcc starts to emit native ROR instructions
which it doesn't do for some reason currently. This should make the code
faster.

Patch survives in-tree crypto test and ping flood with hmac(sha512) on.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/sha512_generic.c
include/linux/bitops.h