From: Chris Packham <chris.packham@alliedtelesis.co.nz>
Date: Fri, 10 Sep 2021 09:51:36 +1200
Subject: basic/linux: Sync if_arp.h with Linux 5.14

ARPHRD_MCTP was added in 5.14. Sync if_arp.h to pick up the definition

Fixes #20694
---
 src/basic/linux/if_arp.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/basic/linux/if_arp.h b/src/basic/linux/if_arp.h
index c3cc5a9..4783af9 100644
--- a/src/basic/linux/if_arp.h
+++ b/src/basic/linux/if_arp.h
@@ -54,6 +54,7 @@
 #define ARPHRD_X25	271		/* CCITT X.25			*/
 #define ARPHRD_HWX25	272		/* Boards with X.25 in firmware	*/
 #define ARPHRD_CAN	280		/* Controller Area Network      */
+#define ARPHRD_MCTP	290
 #define ARPHRD_PPP	512
 #define ARPHRD_CISCO	513		/* Cisco HDLC	 		*/
 #define ARPHRD_HDLC	ARPHRD_CISCO