Re: [PATCH] crypto: jitterentropy - bind statically into kernel

From: Christoph Hellwig
Date: Mon Oct 05 2020 - 02:44:16 EST


[adding Thomas]

On Mon, Oct 05, 2020 at 08:40:25AM +0200, Stephan Mueller wrote:
> > If jitterentropy is a special case, we could put a alternate
> > non-'static inline' version of random_get_entropy() in the core
> > kernel, and only export it if JITTER_ENTROPY is built as a module in
> > the first place. But I'd prefer it if jitterentropy switches to an API
> > that is suitable for driver consumption.
>
> Which API do you have in mind? In user space, I use
> clock_gettime(CLOCK_REALTIME) which also considers the clock source.

We could probably add a kernel_clock_gettime which contains the
clock_gettime syscal implementation minus the put_timespec64. Thomas,
is this something that fits your timekeeping vision?