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

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To: Theodore Tso <tytso@...>, Jeff Garzik <jeff@...>, Chris Peterson <cpeterso@...>, Kok, Auke <auke-jan.h.kok@...>, Rick Jones <rick.jones2@...>, Brandeburg, Jesse <jesse.brandeburg@...>, Alan Cox <alan@...>, <netdev@...>, <linux-kernel@...>
Date: Thursday, May 15, 2008 - 7:58 pm

On Thu, 15 May 2008, Theodore Tso wrote:

The TPM has some sort of idea of restricted operations.  It will depend
whether one can get random numbers as an anonymous party (and frankly, I
don't care for looking at the TCG docs right now to find out).

I certaily can ask the TPM "are you there?" even when it is disabled(!),
so I would not be too surprised to find out that, as long as it is
enabled, it will return random numbers to anyone.

But access to the TPM requires a control layer which must have excusive
access to the chip.  That layer would have to move into the kernel...
IMHO, it is just not worth even bothering with the idea, and just do it
all in userspace.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh
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Messages in current thread:
RE: [PATCH] drivers/net: remove network drivers' last few us..., Brandeburg, Jesse, (Thu May 15, 12:07 pm)
Re: [PATCH] drivers/net: remove network drivers' last few us..., Alejandro Riveira , (Mon May 26, 9:43 am)
Re: [PATCH] drivers/net: remove network drivers' last few us..., Lennart Sorensen, (Fri May 16, 10:15 am)
Re: [PATCH] drivers/net: remove network drivers' last few us..., Henrique de Moraes Holschuh..., (Thu May 15, 6:29 pm)
Re: [PATCH] drivers/net: remove network drivers' last few us..., Henrique de Moraes Holschuh..., (Thu May 15, 7:58 pm)
Re: [PATCH] drivers/net: remove network drivers' last few us..., Henrique de Moraes Holschuh..., (Thu May 15, 7:02 pm)
Re: [PATCH] drivers/net: remove network drivers' last few us..., Henrique de Moraes Holschuh..., (Thu May 15, 7:46 pm)