On Thu, Aug 04, 2016 at 01:28:38PM +0300, Tero Kristo wrote:
> Context export/import are now required for ahash algorithms due to
> required support in algif_hash. Implement these for OMAP SHA driver,
> saving and restoring the internal state of the driver.
>
> Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
> ---
> drivers/crypto/omap-sham.c | 31 +++++++++++++++++++++++++++++--
> 1 file changed, 29 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
> index 6e53944..aa71e61 100644
> --- a/drivers/crypto/omap-sham.c
> +++ b/drivers/crypto/omap-sham.c
> @@ -1379,6 +1379,27 @@ exit_unlock:
> return ret;
> }
>
> +static int omap_sham_export(struct ahash_request *req, void *out)
> +{
> + struct omap_sham_reqctx *rctx = ahash_request_ctx(req);
> +
> + while (omap_sham_flush(req) == -EINPROGRESS)
> + msleep(10);
Do we really need this? You must not call export until the previous
operation has completed.
Cheers,
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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