Messages in this thread | | | From | Prashant Malani <> | Date | Thu, 12 Aug 2021 13:57:58 -0700 | Subject | Re: [PATCH v2 1/2] platform/chrome: cros_ec_proto: Update feature check |
| |
Friendly ping.
On Tue, Aug 3, 2021 at 10:36 AM Prashant Malani <pmalani@chromium.org> wrote: > > EC feature flags now require more than 32 bits to be represented. In > order to make cros_ec_check_features() usable for more recent features, > update it to account for the extra 32 bits of features. > > Signed-off-by: Prashant Malani <pmalani@chromium.org> > --- > Changes in v2: > - No changes. > > drivers/platform/chrome/cros_ec_proto.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c > index a7404d69b2d3..772edad80593 100644 > --- a/drivers/platform/chrome/cros_ec_proto.c > +++ b/drivers/platform/chrome/cros_ec_proto.c > @@ -813,6 +813,7 @@ EXPORT_SYMBOL(cros_ec_get_host_event); > int cros_ec_check_features(struct cros_ec_dev *ec, int feature) > { > struct cros_ec_command *msg; > + u32 mask; > int ret; > > if (ec->features[0] == -1U && ec->features[1] == -1U) { > @@ -839,7 +840,12 @@ int cros_ec_check_features(struct cros_ec_dev *ec, int feature) > kfree(msg); > } > > - return ec->features[feature / 32] & EC_FEATURE_MASK_0(feature); > + if (feature >= 32) > + mask = EC_FEATURE_MASK_1(feature); > + else > + mask = EC_FEATURE_MASK_0(feature); > + > + return ec->features[feature / 32] & mask; > } > EXPORT_SYMBOL_GPL(cros_ec_check_features); > > -- > 2.32.0.554.ge1b32706d8-goog >
| |