There is already 2 driver implementing their own akcipher_request_cast.
In the future there will be also rockchip and allwinner driver that will
need this.
This is sufficient to move it in crypto headers.
Signed-off-by: Corentin Labbe <clabbe@xxxxxxxxxxxx>
---
drivers/crypto/aspeed/aspeed-acry.c | 6 ------
drivers/crypto/ccp/ccp-crypto-rsa.c | 6 ------
include/crypto/akcipher.h | 7 +++++++
3 files changed, 7 insertions(+), 12 deletions(-)
diff --git a/drivers/crypto/aspeed/aspeed-acry.c b/drivers/crypto/aspeed/aspeed-acry.c
index 247c568aa8df..ecb6e984367b 100644
--- a/drivers/crypto/aspeed/aspeed-acry.c
+++ b/drivers/crypto/aspeed/aspeed-acry.c
@@ -137,12 +137,6 @@ enum aspeed_rsa_key_mode {
ASPEED_RSA_DATA_MODE,
};
-static inline struct akcipher_request *
- akcipher_request_cast(struct crypto_async_request *req)
-{
- return container_of(req, struct akcipher_request, base);
-}
-
static int aspeed_acry_do_fallback(struct akcipher_request *req)
{
struct crypto_akcipher *cipher = crypto_akcipher_reqtfm(req);
diff --git a/drivers/crypto/ccp/ccp-crypto-rsa.c b/drivers/crypto/ccp/ccp-crypto-rsa.c
index a14f85512cf4..32c9f524f3d5 100644
--- a/drivers/crypto/ccp/ccp-crypto-rsa.c
+++ b/drivers/crypto/ccp/ccp-crypto-rsa.c
@@ -19,12 +19,6 @@
#include "ccp-crypto.h"
-static inline struct akcipher_request *akcipher_request_cast(
- struct crypto_async_request *req)
-{
- return container_of(req, struct akcipher_request, base);
-}
-
static inline int ccp_copy_and_save_keypart(u8 **kpbuf, unsigned int *kplen,
const u8 *buf, size_t sz)
{
diff --git a/include/crypto/akcipher.h b/include/crypto/akcipher.h
index 670508f1dca1..4b6e610db18d 100644
--- a/include/crypto/akcipher.h
+++ b/include/crypto/akcipher.h
@@ -498,4 +498,11 @@ static inline int crypto_akcipher_set_priv_key(struct crypto_akcipher *tfm,
return alg->set_priv_key(tfm, key, keylen);
}
+
+static inline struct akcipher_request *
+ akcipher_request_cast(struct crypto_async_request *req)
+{
+ return container_of(req, struct akcipher_request, base);
+}
+
#endif
--
2.41.0
