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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>
This commit is contained in:
Tero Kristo 2016-09-19 18:22:18 +03:00 committed by Herbert Xu
parent 8043bb1ae0
commit a84d351f6b
1 changed files with 13 additions and 3 deletions
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16
drivers/crypto/omap-sham.c
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@ -1418,12 +1418,21 @@ static void omap_sham_cra_exit(struct crypto_tfm *tfm)
static int omap_sham_export(struct ahash_request *req, void *out) 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) 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[] = { static struct ahash_alg algs_sha1_md5[] = {
@ -2083,7 +2092,8 @@ static int omap_sham_probe(struct platform_device *pdev)
alg = &dd->pdata->algs_info[i].algs_list[j]; alg = &dd->pdata->algs_info[i].algs_list[j];
alg->export = omap_sham_export; alg->export = omap_sham_export;
alg->import = omap_sham_import; 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); err = crypto_register_ahash(alg);
if (err) if (err)
goto err_algs; goto err_algs;