[PATCH 03/11] crypto: ccp - Use GCM IV size constant

[Corentin Labbe]

This patch replace GCM IV size value by their constant name.

Signed-off-by: Corentin Labbe <clabbe.montj...@gmail.com>
---
 drivers/crypto/ccp/ccp-crypto-aes-galois.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/crypto/ccp/ccp-crypto-aes-galois.c 
b/drivers/crypto/ccp/ccp-crypto-aes-galois.c
index 52313524a4dd..ff02b713c6f6 100644
--- a/drivers/crypto/ccp/ccp-crypto-aes-galois.c
+++ b/drivers/crypto/ccp/ccp-crypto-aes-galois.c
@@ -19,13 +19,12 @@
 #include <crypto/algapi.h>
 #include <crypto/aes.h>
 #include <crypto/ctr.h>
+#include <crypto/gcm.h>
 #include <crypto/scatterwalk.h>
 #include <linux/delay.h>
 
 #include "ccp-crypto.h"
 
-#define        AES_GCM_IVSIZE  12
-
 static int ccp_aes_gcm_complete(struct crypto_async_request *async_req, int 
ret)
 {
        return ret;
@@ -95,9 +94,9 @@ static int ccp_aes_gcm_crypt(struct aead_request *req, bool 
encrypt)
         */
 
        /* Prepare the IV: 12 bytes + an integer (counter) */
-       memcpy(rctx->iv, req->iv, AES_GCM_IVSIZE);
+       memcpy(rctx->iv, req->iv, GCM_AES_IV_SIZE);
        for (i = 0; i < 3; i++)
-               rctx->iv[i + AES_GCM_IVSIZE] = 0;
+               rctx->iv[i + GCM_AES_IV_SIZE] = 0;
        rctx->iv[AES_BLOCK_SIZE - 1] = 1;
 
        /* Set up a scatterlist for the IV */
@@ -160,7 +159,7 @@ static struct aead_alg ccp_aes_gcm_defaults = {
        .encrypt = ccp_aes_gcm_encrypt,
        .decrypt = ccp_aes_gcm_decrypt,
        .init = ccp_aes_gcm_cra_init,
-       .ivsize = AES_GCM_IVSIZE,
+       .ivsize = GCM_AES_IV_SIZE,
        .maxauthsize = AES_BLOCK_SIZE,
        .base = {
                .cra_flags      = CRYPTO_ALG_TYPE_ABLKCIPHER |
-- 
2.13.0