linux-kernel - Re: [PATCH] drivers/net: remove network drivers' last few uses of IRQF_SAMPLE

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Message-ID: <20080516191125.46f59ad6@core>
Date:	Fri, 16 May 2008 19:11:25 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	lsorense@...lub.uwaterloo.ca (Lennart Sorensen)
Cc:	Jeff Garzik <jeff@...zik.org>,
	"Kok, Auke" <auke-jan.h.kok@...el.com>,
	Rick Jones <rick.jones2@...com>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
	Chris Peterson <cpeterso@...terso.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers/net: remove network drivers' last few uses of
 IRQF_SAMPLE_RANDOM

> So what is one to do if a few applications want to read from /dev/random
> but you have no excellent source of entropy on the system?  Wait
> forever?  

Yes.

If they don't need that level of security they can use /dev/urandom.
Piping network randomness into /dev/urandom is probably quite sensible
but not into /dev/random.

Alan
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