From 467eafe980d8bf642e5c7bf32e6cee8da74f9345 Mon Sep 17 00:00:00 2001
From: Zhao Qiang <qiang.zhao@nxp.com>
Date: Mon, 10 Jul 2017 14:51:51 +0800
Subject: add ETH_MIN_MTU

Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>

diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index 117d02e..451d250 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -34,6 +34,7 @@
 #define ETH_DATA_LEN	1500		/* Max. octets in payload	 */
 #define ETH_FRAME_LEN	1514		/* Max. octets in frame sans FCS */
 #define ETH_FCS_LEN	4		/* Octets in the FCS		 */
+#define ETH_MIN_MTU	68		/* Min IPv4 MTU per RFC791      */
 
 /*
  *	These are the defined Ethernet Protocol ID's.
-- 
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