linux-kernel - Re: [PATCH] lib/sha1: remove memsets and allocate workspace on the stack

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Message-ID: <CAMuHMdU1Pu7ya3W1HvoXLMPSn7vpbk=BejsCx=Kn5ieL-RuA8A@mail.gmail.com>
Date:	Tue, 9 Aug 2011 09:01:24 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Joe Perches <joe@...ches.com>
Cc:	Mandeep Singh Baines <msb@...omium.org>,
	linux-kernel@...r.kernel.org,
	Ramsay Jones <ramsay@...say1.demon.co.uk>,
	Nicolas Pitre <nico@...xnic.net>,
	Joachim Eastwood <manabian@...il.com>,
	Andreas Schwab <schwab@...ux-m68k.org>,
	Herbert Xu <herbert@...dor.hengli.com.au>,
	"David S. Miller" <davem@...emloft.net>,
	linux-crypto@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] lib/sha1: remove memsets and allocate workspace on the stack

On Tue, Aug 9, 2011 at 01:45, Joe Perches <joe@...ches.com> wrote:
> You should add #include <linux/crypthash.h> to
> lib/sha1.c and perhaps rationalize the use of __u8
> and char for the second argument to sha_transform in
> the definition and uses.
>
> For defense in depth, a bool could be added to sha_transform
> like:
>
> void sha_transform(__u32 *digest, const char *data, bool wipe);

Yeah, why is the second parameter not "const void *data"? That
would save some casts in the callers.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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