When exporting and importing the hash state, we will only export and
import into hashes which share the same struct crypto_ahash pointer.
(See hash_accept->af_alg_accept->hash_accept_parent.)
This means that saving the caam_hash_ctx structure on export, and
restoring it on import is a waste of resources. So, remove this code.
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
---
drivers/crypto/caam/caamhash.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index 2faf71ccbd43..3ce6083c2e43 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -1575,24 +1575,20 @@ static int ahash_final(struct ahash_request *req)
static int ahash_export(struct ahash_request *req, void *out)
{
struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
- struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
- memcpy(out, ctx, sizeof(struct caam_hash_ctx));
- memcpy(out + sizeof(struct caam_hash_ctx), state,
- sizeof(struct caam_hash_state));
+ memcpy(out, state, sizeof(struct caam_hash_state));
+
return 0;
}
static int ahash_import(struct ahash_request *req, const void *in)
{
struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
- struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
- memcpy(ctx, in, sizeof(struct caam_hash_ctx));
- memcpy(state, in + sizeof(struct caam_hash_ctx),
- sizeof(struct caam_hash_state));
+ memcpy(state, in, sizeof(struct caam_hash_state));
+
return 0;
}
--
2.1.0
--
To unsubscribe from this list: send the line "unsubscribe linux-crypto" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
