On Wed, Jan 25, 2012 at 07:35:19PM -0800, Linus Torvalds wrote:
>
> Ugh. This once more has the crazy signed integer modulus operator,
> which can be quite expensive depending on whether the compiler can
> tell whether it is always positive or not.
Oops, I had incorrectly applied the first patch in the thread.
I've fixed it in the tree now.
> We also avoid the problem with absolutely horrible gcc register usage
> by having an arch-specific "accessor macro":
We could certainly do something like that. Although I'd be
more comfortable with pushing this through linux-next, OK?
Please pull from
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git
or
master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6.git
Alexey Dobriyan (2):
crypto: sha512 - make it work, undo percpu message schedule
crypto: sha512 - reduce stack usage to safe number
Herbert Xu (1):
crypto: sha512 - Use binary and instead of modulus
crypto/sha512_generic.c | 62 +++++++++++++++++++++++++---------------------
1 files changed, 34 insertions(+), 28 deletions(-)
Thanks,
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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