crypto: hash - Require export/import in ahash

Export and import are mandatory in async hash. As drivers were
rewritten, drop empty wrappers and correct init of ahash transformation.

Signed-off-by: Kamil Konieczny <k.konieczny@partner.samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 2 insertions, 16 deletions

diff --git a/crypto/ahash.c b/crypto/ahash.c
index 266fc1d64f61..f732dd9dedf9 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -446,24 +446,12 @@ static int ahash_def_finup(struct ahash_request *req)
         return ahash_def_finup_finish1(req, err);
 }
 
-static int ahash_no_export(struct ahash_request *req, void *out)
-{
-        return -ENOSYS;
-}
-
-static int ahash_no_import(struct ahash_request *req, const void *in)
-{
-        return -ENOSYS;
-}
-
 static int crypto_ahash_init_tfm(struct crypto_tfm *tfm)
 {
         struct crypto_ahash *hash = __crypto_ahash_cast(tfm);
         struct ahash_alg *alg = crypto_ahash_alg(hash);
 
         hash->setkey = ahash_nosetkey;
-        hash->export = ahash_no_export;
-        hash->import = ahash_no_import;
 
         if (tfm->__crt_alg->cra_type != &crypto_ahash_type)
                 return crypto_init_shash_ops_async(tfm);
@@ -473,16 +461,14 @@ static int crypto_ahash_init_tfm(struct crypto_tfm *tfm)
         hash->final = alg->final;
         hash->finup = alg->finup ?: ahash_def_finup;
         hash->digest = alg->digest;
+        hash->export = alg->export;
+        hash->import = alg->import;
 
         if (alg->setkey) {
                 hash->setkey = alg->setkey;
                 if (!(alg->halg.base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY))
                         crypto_ahash_set_flags(hash, CRYPTO_TFM_NEED_KEY);
         }
-        if (alg->export)
-                hash->export = alg->export;
-        if (alg->import)
-                hash->import = alg->import;
 
         return 0;
 }