netdev - Re: [net-next PATCH] etherdevice.h: random_ether

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Message-Id: <1252717067.29420.22.camel@Joe-Laptop.home>
Date:	Fri, 11 Sep 2009 17:57:47 -0700
From:	Joe Perches <joe@...ches.com>
To:	Stephen Hemminger <shemminger@...tta.com>
Cc:	David Miller <davem@...emloft.net>, jeffrey.t.kirsher@...el.com,
	netdev@...r.kernel.org, gospo@...hat.com, gregory.v.rose@...el.com,
	donald.c.skidmore@...el.com
Subject: Re: [net-next PATCH] etherdevice.h: random_ether_addr update

On Fri, 2009-09-11 at 14:15 -0700, Stephen Hemminger wrote:
> On Fri, 2009-09011 at 13:20 -0700 Joe Perches wrote:
> > Do not use get_random_bytes to avoid drawing down entropy pool.
> Getting 6 bytes once is not going to be enough of a problem
> to drain the pool. I prefer not to weaken the randomness here.

I see no reason to draw down the entropy pool.

I have a hard time imagining that a random mac address
needs more than reasonably random values.

Why do you think it's reasonable to draw from the
entropy pool?

cheers, Joe

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