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From: Matt Mackall <mpm@selenic.com>
To: tytso@mit.edu, Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 6/6] random: improve variable naming, clear extract buffer
Date: Sat, 8 Dec 2007 23:08:31 -0600	[thread overview]
Message-ID: <20071209050831.GS19691@waste.org> (raw)
In-Reply-To: <20071209015154.GW17037@thunk.org>

On Sat, Dec 08, 2007 at 08:51:54PM -0500, Theodore Tso wrote:
> On Sat, Dec 08, 2007 at 05:21:00PM -0600, Matt Mackall wrote:
> > random: improve variable naming, clear extract buffer
> > 
> > - split the SHA variables apart into hash and workspace
> > - rename data to extract
> > - wipe extract and workspace after hashing
> > 
> > diff -r 924f9a441236 drivers/char/random.c
> > --- a/drivers/char/random.c	Sat Dec 08 16:22:29 2007 -0600
> > +++ b/drivers/char/random.c	Sat Dec 08 16:32:31 2007 -0600
> > @@ -461,7 +461,7 @@ static void __add_entropy_words(struct e
> >  	unsigned long flags;
> >  	/* rotate the add pointer more rapidly to span more of the
> >  	 * pool on a given add */
> > -	const int step = 5;
> > +	const int step = 13;
> >  
> >  	/* Taps are constant, so we can load them without holding r->lock.  */
> >  	tap1 = r->poolinfo->tap1;
> 
> This change has nothing to do with the patch comment.  If you want to
> change the step size from 5 to 13, why not just change patch 5/6 to
> just use a step size of 13 from the beginning?

Patch refresh gone wrong.
 
> Otherwise, yeah, this patch does make sense.

Twice, in fact. This patch as sent won't compile due to an extra &.

-- 
Mathematics is the supreme nostalgia of our time.

      reply	other threads:[~2007-12-09  5:09 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <2.753618428@selenic.com>
     [not found] ` <3.753618428@selenic.com>
2007-12-09  0:01   ` [PATCH 2/6] random: use xor for mixing Theodore Tso
2007-12-09  0:40     ` Matt Mackall
2007-12-09  2:08       ` Theodore Tso
2007-12-09 13:33         ` Alan Cox
2007-12-19 21:09         ` Bill Davidsen
     [not found] ` <4.753618428@selenic.com>
2007-12-09  0:35   ` [PATCH 3/6] random: do extraction before mixing Theodore Tso
2007-12-09  7:12     ` Matt Mackall
     [not found] ` <5.753618428@selenic.com>
2007-12-09  1:45   ` [PATCH 4/6] random: make backtracking attacks harder Theodore Tso
2007-12-09  5:43     ` Matt Mackall
2007-12-09 13:33       ` Theodore Tso
2007-12-09 17:05         ` Matt Mackall
2007-12-10 13:37           ` Theodore Tso
     [not found] ` <6.753618428@selenic.com>
2007-12-09  1:48   ` [PATCH 5/6] random: step more rapidly through the pool when adding and extracting Theodore Tso
2007-12-09  4:00     ` Andrew Morton
2007-12-09  4:22       ` Matt Mackall
2007-12-09 12:55         ` Theodore Tso
2007-12-09 17:08           ` Matt Mackall
     [not found] ` <7.753618428@selenic.com>
2007-12-09  1:51   ` [PATCH 6/6] random: improve variable naming, clear extract buffer Theodore Tso
2007-12-09  5:08     ` Matt Mackall [this message]

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