crypto: api - Remove frontend argument from extsize/init_tfm

[firefly-linux-kernel-4.4.55.git] / crypto / shash.c

diff --git a/crypto/shash.c b/crypto/shash.c
index d8e0f8f8d6720d6e2a14dc476819d49f4a3c78c8..7063e1421504a06a244e679b0cafe140bfb39f61 100644 (file)
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -202,9 +202,8 @@ static int shash_async_init(struct ahash_request *req)
        return crypto_shash_init(desc);
 }
 
-static int shash_async_update(struct ahash_request *req)
+int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc)
 {
-       struct shash_desc *desc = ahash_request_ctx(req);
        struct crypto_hash_walk walk;
        int nbytes;
 
@@ -214,13 +213,19 @@ static int shash_async_update(struct ahash_request *req)
 
        return nbytes;
 }
+EXPORT_SYMBOL_GPL(shash_ahash_update);
+
+static int shash_async_update(struct ahash_request *req)
+{
+       return shash_ahash_update(req, ahash_request_ctx(req));
+}
 
 static int shash_async_final(struct ahash_request *req)
 {
        return crypto_shash_final(ahash_request_ctx(req), req->result);
 }
 
-static int shash_async_digest(struct ahash_request *req)
+int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc)
 {
        struct scatterlist *sg = req->src;
        unsigned int offset = sg->offset;
@@ -228,34 +233,31 @@ static int shash_async_digest(struct ahash_request *req)
        int err;
 
        if (nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset)) {
-               struct crypto_shash **ctx =
-                       crypto_ahash_ctx(crypto_ahash_reqtfm(req));
-               struct shash_desc *desc = ahash_request_ctx(req);
                void *data;
 
-               desc->tfm = *ctx;
-               desc->flags = req->base.flags;
-
                data = crypto_kmap(sg_page(sg), 0);
                err = crypto_shash_digest(desc, data + offset, nbytes,
                                          req->result);
                crypto_kunmap(data, 0);
                crypto_yield(desc->flags);
-               goto out;
-       }
+       } else
+               err = crypto_shash_init(desc) ?:
+                     shash_ahash_update(req, desc) ?:
+                     crypto_shash_final(desc, req->result);
 
-       err = shash_async_init(req);
-       if (err)
-               goto out;
+       return err;
+}
+EXPORT_SYMBOL_GPL(shash_ahash_digest);
 
-       err = shash_async_update(req);
-       if (err)
-               goto out;
+static int shash_async_digest(struct ahash_request *req)
+{
+       struct crypto_shash **ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req));
+       struct shash_desc *desc = ahash_request_ctx(req);
 
-       err = shash_async_final(req);
+       desc->tfm = *ctx;
+       desc->flags = req->base.flags;
 
-out:
-       return err;
+       return shash_ahash_digest(req, desc);
 }
 
 static void crypto_exit_shash_ops_async(struct crypto_tfm *tfm)
@@ -446,8 +448,7 @@ static unsigned int crypto_shash_ctxsize(struct crypto_alg *alg, u32 type,
        return 0;
 }
 
-static int crypto_shash_init_tfm(struct crypto_tfm *tfm,
-                                const struct crypto_type *frontend)
+static int crypto_shash_init_tfm(struct crypto_tfm *tfm)
 {
        struct crypto_shash *hash = __crypto_shash_cast(tfm);
 
@@ -455,8 +456,7 @@ static int crypto_shash_init_tfm(struct crypto_tfm *tfm,
        return 0;
 }
 
-static unsigned int crypto_shash_extsize(struct crypto_alg *alg,
-                                        const struct crypto_type *frontend)
+static unsigned int crypto_shash_extsize(struct crypto_alg *alg)
 {
        return alg->cra_ctxsize;
 }