Re: [PATCH 01/11] random: don't feed stack data into pool when interrupt regs NULL

[rkuo]

On Mon, Apr 07, 2014 at 09:30:57PM +0200, Sebastian Andrzej Siewior wrote:
> Yes. Usually there is generic function doing something sane but not as
> good as it could do with arch specific code. Or the code is completly
> disabled unless the architecture wires it up. Dropping a new function and
> hoping everyone will wire it up in no time is, ehm, brave. Nobody implemented
> random_get_entropy(), everyone falls back to get_cycles. From a quick
> grep I can see that atleast Hexagon, Cris, Frv, m32r and m68k return 0. I 
> put some of the maintainers Cc, I am curious if they know about the side
> effects.

Thanks for the CC; I was not aware of the side effects.  Hexagon does have a
pcycles mechanism, so I will hook that up in our arch.



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