Re: [PATCH] drivers/net: remove network drivers' last few uses ofIRQF_SAMPLE_RANDOM

From: Jeff Garzik
Date: Fri May 16 2008 - 09:41:25 EST

Lennart Sorensen wrote:
On Thu, May 15, 2008 at 03:21:49PM -0400, Jeff Garzik wrote:
"no other form of entropy"? See examples in this thread.

So where does one get entropy if not the ethernet adapter on many
embedded systems? If you have no mouse, no keyboard, no hardware number
generator, just ethernet ports and a serial console that usually
receives no input. While ethernet might not be preferable if you have
something else, sometimes you really don't have anything else.

Already answered in this thread... EGD illustrates how many sources of entropy remain, even in the example you just gave.

Further, you do not want to rely on entropy from a source that declines just as network traffic increases.


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