linux-kernel - [PATCH 06/11] crypto: bcm - Use GCM IV size constant

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Date:   Tue, 22 Aug 2017 10:08:13 +0200
From:   Corentin Labbe <clabbe.montjoie@...il.com>
To:     herbert@...dor.apana.org.au, davem@...emloft.net,
        tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
        x86@...nel.org, horia.geanta@....com, dan.douglass@....com,
        thomas.lendacky@....com, gary.hook@....com, harsh@...lsio.com,
        matthias.bgg@...il.com, leosilva@...ux.vnet.ibm.com,
        pfsmorigo@...ux.vnet.ibm.com, benh@...nel.crashing.org,
        paulus@...ba.org, mpe@...erman.id.au
Cc:     linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org,
        Corentin Labbe <clabbe.montjoie@...il.com>
Subject: [PATCH 06/11] crypto: bcm - Use GCM IV size constant

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

Signed-off-by: Corentin Labbe <clabbe.montjoie@...il.com>
---
 drivers/crypto/bcm/cipher.c | 8 ++++----
 drivers/crypto/bcm/cipher.h | 3 +--
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/crypto/bcm/cipher.c b/drivers/crypto/bcm/cipher.c
index 8685c7e4debd..537a67483aa3 100644
--- a/drivers/crypto/bcm/cipher.c
+++ b/drivers/crypto/bcm/cipher.c
@@ -1367,11 +1367,11 @@ static int handle_aead_req(struct iproc_reqctx_s *rctx)
 		 * expects AAD to include just SPI and seqno. So
 		 * subtract off the IV len.
 		 */
-		aead_parms.assoc_size -= GCM_ESP_IV_SIZE;
+		aead_parms.assoc_size -= GCM_RFC4106_IV_SIZE;
 
 		if (rctx->is_encrypt) {
 			aead_parms.return_iv = true;
-			aead_parms.ret_iv_len = GCM_ESP_IV_SIZE;
+			aead_parms.ret_iv_len = GCM_RFC4106_IV_SIZE;
 			aead_parms.ret_iv_off = GCM_ESP_SALT_SIZE;
 		}
 	} else {
@@ -3255,7 +3255,7 @@ static struct iproc_alg_s driver_algs[] = {
 			.cra_flags = CRYPTO_ALG_NEED_FALLBACK
 		 },
 		 .setkey = aead_gcm_esp_setkey,
-		 .ivsize = GCM_ESP_IV_SIZE,
+		 .ivsize = GCM_RFC4106_IV_SIZE,
 		 .maxauthsize = AES_BLOCK_SIZE,
 	 },
 	 .cipher_info = {
@@ -3301,7 +3301,7 @@ static struct iproc_alg_s driver_algs[] = {
 			.cra_flags = CRYPTO_ALG_NEED_FALLBACK
 		 },
 		 .setkey = rfc4543_gcm_esp_setkey,
-		 .ivsize = GCM_ESP_IV_SIZE,
+		 .ivsize = GCM_RFC4106_IV_SIZE,
 		 .maxauthsize = AES_BLOCK_SIZE,
 	 },
 	 .cipher_info = {
diff --git a/drivers/crypto/bcm/cipher.h b/drivers/crypto/bcm/cipher.h
index 57a55eb2a255..763c425c41ca 100644
--- a/drivers/crypto/bcm/cipher.h
+++ b/drivers/crypto/bcm/cipher.h
@@ -23,6 +23,7 @@
 #include <crypto/aes.h>
 #include <crypto/internal/hash.h>
 #include <crypto/aead.h>
+#include <crypto/gcm.h>
 #include <crypto/sha.h>
 #include <crypto/sha3.h>
 
@@ -39,8 +40,6 @@
 #define ARC4_STATE_SIZE     4
 
 #define CCM_AES_IV_SIZE    16
-#define GCM_AES_IV_SIZE    12
-#define GCM_ESP_IV_SIZE     8
 #define CCM_ESP_IV_SIZE     8
 #define RFC4543_ICV_SIZE   16
 
-- 
2.13.0