Re: [PATCH] Re: [PATCH] drivers/net: remove network drivers' lastfew uses of IRQF_SAMPLE_RANDOM

From: Alan Cox
Date: Fri May 16 2008 - 06:09:22 EST

On Fri, 16 May 2008 02:27:36 +0200
Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:

> Jeff Garzik <jeff@xxxxxxxxxx> writes:
> >
> > A hw_random driver for TPM still needs to (a) parse the TPM header for
> > return code, (b) extract RNG bytes out at offset 14, and (c) figure
> > out some way to get a tpm_chip pointer.
> (d) auto feed the information into random.c. Otherwise it'll be useless
> for most people.

No - you don't want to do FIPS randomness verification in kernel space.
Plus all the other random generator inputs are done via the user space
daemon as they should be.
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