[PATCH v3 08/18] crypto: rsa: Move rsapad_akcipher_setup_child and callback to rsa-common

[Varad Gautam]

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

Signed-off-by: Varad Gautam <varad.gau...@suse.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 d70d7d405165f..6ed258a782875 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 30b0193b7352a..6fa207732fcbe 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 a6f20cce610ab..4fa3cf5a989cc 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