crypto: omap-sham - add support for export/import
Now that the driver has been converted to use scatterlists for data
handling, add proper implementation for the export/import stubs also.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 412559e..8eefd79 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -1418,12 +1418,21 @@
static int omap_sham_export(struct ahash_request *req, void *out)
{
- return -ENOTSUPP;
+ struct omap_sham_reqctx *rctx = ahash_request_ctx(req);
+
+ memcpy(out, rctx, sizeof(*rctx) + rctx->bufcnt);
+
+ return 0;
}
static int omap_sham_import(struct ahash_request *req, const void *in)
{
- return -ENOTSUPP;
+ struct omap_sham_reqctx *rctx = ahash_request_ctx(req);
+ const struct omap_sham_reqctx *ctx_in = in;
+
+ memcpy(rctx, in, sizeof(*rctx) + ctx_in->bufcnt);
+
+ return 0;
}
static struct ahash_alg algs_sha1_md5[] = {
@@ -2083,7 +2092,8 @@
alg = &dd->pdata->algs_info[i].algs_list[j];
alg->export = omap_sham_export;
alg->import = omap_sham_import;
- alg->halg.statesize = sizeof(struct omap_sham_reqctx);
+ alg->halg.statesize = sizeof(struct omap_sham_reqctx) +
+ BUFLEN;
err = crypto_register_ahash(alg);
if (err)
goto err_algs;