Re: [PATCH] lib/sha1: use the git implementation of SHA-1

From: Linus Torvalds
Date: Sun Aug 07 2011 - 17:07:21 EST


On Sun, Aug 7, 2011 at 1:48 PM, Joachim Eastwood <manabian@xxxxxxxxx> wrote:
>
> yes, this works. At least my board boots as normal.

Ok, I'll remove it for -rc1, just to have a working ARM setup. Maybe
we can re-introduce it later (either together with some arm-specific
hack for SHA_WORKSPACE_WORDS or by having an arm-optimized version of
the *good* sha1 routine).

But I doubt it: there used to be an ARM-optimized thing in git too. It
was removed two years ago with the commit message:

remove ARM and Mozilla SHA1 implementations

They are both slower than the new BLK_SHA1 implementation, so it is
pointless to keep them around.

and quite frankly, that removed code seems to be the same as the
in-kernel one. So I bet the ARM "optimized" SHA1 is simply not worth
keeping around.

Linus
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