Subject: Re: [PATCH] drivers/net: remove network drivers' last few uses of IRQF_SAMPLE_RANDOM

From: Glen Turner <[email-masked]>
Date: Mon, 26 May 2008 00:32:02 +0930

On Fri, 2008-05-16 at 22:34 +0200, Benny Amorsen wrote:

> Perhaps it would be possible to make most types of interrupts add
> entropy, but not credit any entropy?

You need to be certain that those sources are not able
to be influenced by a hostile party, otherwise the entropy
pool can be degraded to be less random over successive samples
than its entropy score suggests.  Interrupts do not meet that
test.