From ef780324592dd639e4bfbc5b9bf8934b234b7c99 Mon Sep 17 00:00:00 2001
From: Corentin LABBE <clabbe.montjoie@gmail.com>
Date: Tue, 22 Aug 2017 10:08:08 +0200
Subject: [PATCH] crypto: gcm - add GCM IV size constant
Git-commit: ef780324592dd639e4bfbc5b9bf8934b234b7c99
Patch-mainline: v4.15-rc1
References: bsc#1051510

Many GCM users use directly GCM IV size instead of using some constant.

This patch add all IV size constant used by GCM.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 include/crypto/gcm.h |    8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 include/crypto/gcm.h

--- /dev/null
+++ b/include/crypto/gcm.h
@@ -0,0 +1,8 @@
+#ifndef _CRYPTO_GCM_H
+#define _CRYPTO_GCM_H
+
+#define GCM_AES_IV_SIZE 12
+#define GCM_RFC4106_IV_SIZE 8
+#define GCM_RFC4543_IV_SIZE 8
+
+#endif