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From: Fabio Estevam <fabio.estevam@nxp.com>
Currently the mxs-dcp driver fails to probe:
mxs-dcp 80028000.dcp: Failed to register sha1 hash!
mxs-dcp: probe of 80028000.dcp failed with error -22
This happens since commit 8996eafdcbad ("crypto: ahash - ensure statesize
is non-zero"), which requires statesize to be filled.
Other than filling statesize, we also need to provide the import/export
functions.
Based on the implementation of the sahara and caam drivers.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
---
Changes since v2:
- Newly introduced in this series
drivers/crypto/mxs-dcp.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c
index 59ed54e..1e2017f 100644
--- a/drivers/crypto/mxs-dcp.c
+++ b/drivers/crypto/mxs-dcp.c
@@ -775,6 +775,24 @@ static void dcp_sha_cra_exit(struct crypto_tfm *tfm)
{
}
+static int dcp_sha_export(struct ahash_request *req, void *out)
+{
+ struct dcp_sha_req_ctx *rctx = ahash_request_ctx(req);
+
+ memcpy(out, rctx, sizeof(struct dcp_sha_req_ctx));
+
+ return 0;
+}
+
+static int dcp_sha_import(struct ahash_request *req, const void *in)
+{
+ struct dcp_sha_req_ctx *rctx = ahash_request_ctx(req);
+
+ memcpy(rctx, in, sizeof(struct dcp_sha_req_ctx));
+
+ return 0;
+}
+
/* AES 128 ECB and AES 128 CBC */
static struct crypto_alg dcp_aes_algs[] = {
{
@@ -834,8 +852,11 @@ static struct ahash_alg dcp_sha1_alg = {
.final = dcp_sha_final,
.finup = dcp_sha_finup,
.digest = dcp_sha_digest,
+ .import = dcp_sha_import,
+ .export = dcp_sha_export,
.halg = {
.digestsize = SHA1_DIGEST_SIZE,
+ .statesize = sizeof(struct dcp_sha_req_ctx),
.base = {
.cra_name = "sha1",
.cra_driver_name = "sha1-dcp",
@@ -858,8 +879,11 @@ static struct ahash_alg dcp_sha256_alg = {
.final = dcp_sha_final,
.finup = dcp_sha_finup,
.digest = dcp_sha_digest,
+ .import = dcp_sha_import,
+ .export = dcp_sha_export,
.halg = {
.digestsize = SHA256_DIGEST_SIZE,
+ .statesize = sizeof(struct dcp_sha_req_ctx),
.base = {
.cra_name = "sha256",
.cra_driver_name = "sha256-dcp",
--
1.9.1
--
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