crypto/openssl: skip workaround at compilation time

[ upstream commit 5b94ac1965620e945a3b8fcff84fab4fcb2ef801 ]

This workaround was needed before version 1.0.1f.
Do not build it for versions >= 1.1.

Fixes: d61f70b ("crypto/libcrypto: add driver for OpenSSL library")

Signed-off-by: Didier Pallard <didier.pallard@6wind.com>
Acked-by: Kai Ji <kai.ji@intel.com>

drivers/crypto/openssl/rte_openssl_pmd.c

@@ -1061,8 +1061,11 @@ process_openssl_auth_encryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 		int srclen, uint8_t *aad, int aadlen, uint8_t *iv,
 		uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx)
 {
-	int len = 0, unused = 0;
+	int len = 0;
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+	int unused = 0;
 	uint8_t empty[] = {};
+#endif
 
 	if (EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
 		goto process_auth_encryption_gcm_err;
@@ -1076,9 +1079,11 @@ process_openssl_auth_encryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 				srclen, ctx, 0))
 			goto process_auth_encryption_gcm_err;
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 	/* Workaround open ssl bug in version less then 1.0.1f */
 	if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
 		goto process_auth_encryption_gcm_err;
+#endif
 
 	if (EVP_EncryptFinal_ex(ctx, dst, &len) <= 0)
 		goto process_auth_encryption_gcm_err;
@@ -1140,8 +1145,11 @@ process_openssl_auth_decryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 		int srclen, uint8_t *aad, int aadlen, uint8_t *iv,
 		uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx)
 {
-	int len = 0, unused = 0;
+	int len = 0;
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+	int unused = 0;
 	uint8_t empty[] = {};
+#endif
 
 	if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0)
 		goto process_auth_decryption_gcm_err;
@@ -1158,9 +1166,11 @@ process_openssl_auth_decryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 				srclen, ctx, 0))
 			goto process_auth_decryption_gcm_err;
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 	/* Workaround open ssl bug in version less then 1.0.1f */
 	if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
 		goto process_auth_decryption_gcm_err;
+#endif
 
 	if (EVP_DecryptFinal_ex(ctx, dst, &len) <= 0)
 		return -EFAULT;