| Message ID | 20210417132503.1401128-2-thara.gopinath@linaro.org (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Herbert Xu |
| Headers | show |
| Series | Add support for AEAD algorithms in Qualcomm Crypto Engine driver | expand |
On Sat 17 Apr 08:24 CDT 2021, Thara Gopinath wrote: > MAC_FAILED gets set in the status register if authenthication fails > for ccm algorithms(during decryption). Add support to catch and flag > this error. > Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Regards, Bjorn > Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org> > --- > > v1->v2: > - Split the error checking for -ENXIO and -EBADMSG into if-else clause > so that the code is more readable as per Bjorn's review comment. > > drivers/crypto/qce/common.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/crypto/qce/common.c b/drivers/crypto/qce/common.c > index dceb9579d87a..dd76175d5c62 100644 > --- a/drivers/crypto/qce/common.c > +++ b/drivers/crypto/qce/common.c > @@ -419,6 +419,8 @@ int qce_check_status(struct qce_device *qce, u32 *status) > */ > if (*status & STATUS_ERRORS || !(*status & BIT(OPERATION_DONE_SHIFT))) > ret = -ENXIO; > + else if (*status & BIT(MAC_FAILED_SHIFT)) > + ret = -EBADMSG; > > return ret; > } > -- > 2.25.1 >
diff --git a/drivers/crypto/qce/common.c b/drivers/crypto/qce/common.c index dceb9579d87a..dd76175d5c62 100644 --- a/drivers/crypto/qce/common.c +++ b/drivers/crypto/qce/common.c @@ -419,6 +419,8 @@ int qce_check_status(struct qce_device *qce, u32 *status) */ if (*status & STATUS_ERRORS || !(*status & BIT(OPERATION_DONE_SHIFT))) ret = -ENXIO; + else if (*status & BIT(MAC_FAILED_SHIFT)) + ret = -EBADMSG; return ret; }
MAC_FAILED gets set in the status register if authenthication fails for ccm algorithms(during decryption). Add support to catch and flag this error. Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org> --- v1->v2: - Split the error checking for -ENXIO and -EBADMSG into if-else clause so that the code is more readable as per Bjorn's review comment. drivers/crypto/qce/common.c | 2 ++ 1 file changed, 2 insertions(+)