RE: [PATCH v2 0/3] hw_random: introduce Arm CryptoCell TRNG driver

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> 
> On Sun, Feb 2, 2020 at 2:27 PM Hadar Gat <hadar.gat@xxxxxxx> wrote:
> >
> > The Arm CryptoCell is a hardware security engine.
> > This patch introduces driver for its TRNG (True Random Number
> > Generator) engine.
> >
> > Changes from previous veriosn: fixed 'make dt_bnding_check' errors.
> >
> > Hadar Gat (3):
> >   dt-bindings: add device tree binding for Arm CryptoCell trng engine
> >   hw_random: cctrng: introduce Arm CryptoCell driver
> >   MAINTAINERS: add HG as cctrng maintainer
> 
> I looked at the patches briefly and everything makes sense to me,
> 
> Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
> 
> There are two style issues that you could improve:
> 
> - The header is only included from a single file, so I would just fold
>   its contents into the driver itself.

Although it is included from a single file, I prefer a separated file because it is already contains more than a few definitions and it is most likely that its content will grow in next versions of Arm CryptoCell HW.

> 
> - You have a lot of "#ifdef CONFIG_PM" that are easy to get wrong
>   with various combinations of config symbols. It's often better to
>   leave that all compiled unconditionally and have the logic in
>   UNIVERSAL_DEV_PM_OPS() take care of dropping the unused
>   bits, with a __maybe_unused annotation on functions that cause
>   a warning otherwise.

Thanks Arnd. I'll remove these #ifdef as you suggested.

> 
>        Arnd

Hadar




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