On Fri, Jun 28, 2019 at 09:57:42AM +0530, Keerthy wrote: > +static int sa_sham_update(struct ahash_request *req) > +{ > + return -ENOTSUPP; > +} > + > +static int sa_sham_final(struct ahash_request *req) > +{ > + return sa_sham_digest(req); > +} > + > +static int sa_sham_finup(struct ahash_request *req) > +{ > + return sa_sham_digest(req); > +} You can't just not support update(). You need to support update(). - Eric