linux-kernel - [PATCH 08/18] crypto: rsa: Move rsapad_akcipher_setup

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Message-ID: <20210330202829.4825-9-varad.gautam@suse.com>
Date:   Tue, 30 Mar 2021 22:28:19 +0200
From:   Varad Gautam <varad.gautam@...e.com>
To:     linux-crypto@...r.kernel.org
CC:     Varad Gautam <varad.gautam@...e.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 08/18] crypto: rsa: Move rsapad_akcipher_setup_child and callback to rsa-common

Pull out more common code from rsa-pkcs1pad into rsa-common.

Signed-off-by: Varad Gautam <varad.gautam@...e.com>
---
 crypto/rsa-common.c                  | 31 +++++++++++++++++++++++++++
 crypto/rsa-pkcs1pad.c                | 32 ----------------------------
 include/crypto/internal/rsa-common.h |  9 ++++++++
 3 files changed, 40 insertions(+), 32 deletions(-)

diff --git a/crypto/rsa-common.c b/crypto/rsa-common.c
index d70d7d405165..6ed258a78287 100644
--- a/crypto/rsa-common.c
+++ b/crypto/rsa-common.c
@@ -75,6 +75,37 @@ const struct rsa_asn1_template *rsa_lookup_asn1(const char *name)
 	return NULL;
 }
 
+void rsapad_akcipher_req_complete(struct crypto_async_request *child_async_req,
+				  int err, rsa_akcipher_complete_cb cb)
+{
+	struct akcipher_request *req = child_async_req->data;
+	struct crypto_async_request async_req;
+
+	if (err == -EINPROGRESS)
+		return;
+
+	async_req.data = req->base.data;
+	async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req));
+	async_req.flags = child_async_req->flags;
+	req->base.complete(&async_req, cb(req, err));
+}
+
+void rsapad_akcipher_setup_child(struct akcipher_request *req,
+				 struct scatterlist *src_sg,
+				 struct scatterlist *dst_sg,
+				 unsigned int src_len,
+				 unsigned int dst_len,
+				 crypto_completion_t cb)
+{
+	struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
+	struct rsapad_tfm_ctx *ctx = akcipher_tfm_ctx(tfm);
+	struct rsapad_akciper_req_ctx *req_ctx = akcipher_request_ctx(req);
+
+	akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
+	akcipher_request_set_callback(&req_ctx->child_req, req->base.flags, cb, req);
+	akcipher_request_set_crypt(&req_ctx->child_req, src_sg, dst_sg, src_len, dst_len);
+}
+
 int rsapad_set_pub_key(struct crypto_akcipher *tfm, const void *key,
 		       unsigned int keylen)
 {
diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c
index 30b0193b7352..6fa207732fcb 100644
--- a/crypto/rsa-pkcs1pad.c
+++ b/crypto/rsa-pkcs1pad.c
@@ -9,38 +9,6 @@
 #include <linux/module.h>
 #include <linux/random.h>
 
-typedef int (*rsa_akcipher_complete_cb)(struct akcipher_request *, int);
-static void rsapad_akcipher_req_complete(struct crypto_async_request *child_async_req,
-					 int err, rsa_akcipher_complete_cb cb)
-{
-	struct akcipher_request *req = child_async_req->data;
-	struct crypto_async_request async_req;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	async_req.data = req->base.data;
-	async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req));
-	async_req.flags = child_async_req->flags;
-	req->base.complete(&async_req, cb(req, err));
-}
-
-static void rsapad_akcipher_setup_child(struct akcipher_request *req,
-					struct scatterlist *src_sg,
-					struct scatterlist *dst_sg,
-					unsigned int src_len,
-					unsigned int dst_len,
-					crypto_completion_t cb)
-{
-	struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
-	struct rsapad_tfm_ctx *ctx = akcipher_tfm_ctx(tfm);
-	struct rsapad_akciper_req_ctx *req_ctx = akcipher_request_ctx(req);
-
-	akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
-	akcipher_request_set_callback(&req_ctx->child_req, req->base.flags, cb, req);
-	akcipher_request_set_crypt(&req_ctx->child_req, src_sg, dst_sg, src_len, dst_len);
-}
-
 static int pkcs1pad_encrypt_sign_complete(struct akcipher_request *req, int err)
 {
 	struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
diff --git a/include/crypto/internal/rsa-common.h b/include/crypto/internal/rsa-common.h
index a6f20cce610a..4fa3cf5a989c 100644
--- a/include/crypto/internal/rsa-common.h
+++ b/include/crypto/internal/rsa-common.h
@@ -34,6 +34,15 @@ struct rsapad_akciper_req_ctx {
 	struct akcipher_request child_req;
 };
 
+typedef int (*rsa_akcipher_complete_cb)(struct akcipher_request *, int);
+void rsapad_akcipher_req_complete(struct crypto_async_request *child_async_req,
+				  int err, rsa_akcipher_complete_cb cb);
+void rsapad_akcipher_setup_child(struct akcipher_request *req,
+				 struct scatterlist *src_sg,
+				 struct scatterlist *dst_sg,
+				 unsigned int src_len,
+				 unsigned int dst_len,
+				 crypto_completion_t cb);
 int rsapad_set_pub_key(struct crypto_akcipher *tfm, const void *key,
 		       unsigned int keylen);
 int rsapad_set_priv_key(struct crypto_akcipher *tfm, const void *key,
-- 
2.30.2