[PATCH 4.14 011/156] crypto: gcm - add GCM IV size constant

[Greg Kroah-Hartman]

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Corentin LABBE <clabbe.montjoie@xxxxxxxxx>

commit ef780324592dd639e4bfbc5b9bf8934b234b7c99 upstream.

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@xxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

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

--- /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