Re: [PATCH v4] crypto: sun4i-ss: support the Security System PRNG

From: Corentin Labbe
Date: Mon Jul 03 2017 - 14:32:02 EST


On Mon, Jun 26, 2017 at 02:36:43PM +0200, Frans Klaver wrote:
> Hi,
>
> On Mon, Jun 26, 2017 at 2:20 PM, Corentin Labbe
> <clabbe.montjoie@xxxxxxxxx> wrote:
> > The Security System have a PRNG, this patch add support for it via
> > crypto_rng.
>
> s,have,has,
> s,add,adds,
>
> >
> > Signed-off-by: Corentin Labbe <clabbe.montjoie@xxxxxxxxx>
> > ---
> >
> > Changes since v3 (note: the v3 miss changes and version tag sorry)
> > - Replaced all len values with bits / BITS_PER_LONG or BITS_PER_BYTE
> >
> > Changes since v2
> > - converted to crypto_rng
> >
> > Changes since v1:
> > - Replaced all spin_lock_bh by simple spin_lock
> > - Removed handling of size not modulo 4 which will never happen
> > - Added add_random_ready_callback()
> >
> > drivers/crypto/Kconfig | 8 +++++
> > drivers/crypto/sunxi-ss/Makefile | 1 +
> > drivers/crypto/sunxi-ss/sun4i-ss-core.c | 30 ++++++++++++++++++
> > drivers/crypto/sunxi-ss/sun4i-ss-prng.c | 56 +++++++++++++++++++++++++++++++++
> > drivers/crypto/sunxi-ss/sun4i-ss.h | 11 +++++++
> > 5 files changed, 106 insertions(+)
> > create mode 100644 drivers/crypto/sunxi-ss/sun4i-ss-prng.c
> >
> > diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
> > index ab82536d64e2..bde0b102eb70 100644
> > --- a/drivers/crypto/Kconfig
> > +++ b/drivers/crypto/Kconfig
> > @@ -618,6 +618,14 @@ config CRYPTO_DEV_SUN4I_SS
> > To compile this driver as a module, choose M here: the module
> > will be called sun4i-ss.
> >
> > +config CRYPTO_DEV_SUN4I_SS_PRNG
> > + bool "Support for Allwinner Security System PRNG"
> > + depends on CRYPTO_DEV_SUN4I_SS
> > + select CRYPTO_RNG
> > + help
> > + Select this option if you to provides kernel-side support for
> > + the Pseudo-Random Number Generator found in the Security System.
>
> This sentence does not parse. "Select this option if you want to
> provide kernel-side for ...". Alternatively: "This option enables
> kernel-side support for ..."
>
> Frans

Thanks, I will change it.