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
