Fix build with the latest kernels

20695.patch

@@ -0,0 +1,24 @@
+From 67cd626399b0d02882ee00716c8bd31ba764c862 Mon Sep 17 00:00:00 2001
+From: Chris Packham <chris.packham@alliedtelesis.co.nz>
+Date: Fri, 10 Sep 2021 09:51:36 +1200
+Subject: [PATCH] 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 c3cc5a9e5eaf..4783af9fe520 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

systemd.spec

@@ -97,6 +97,7 @@ Patch0003:      0003-rpm-call-needs-restart-in-parallel.patch
 Patch0004:      0004-rpm-restart-user-services-at-the-end-of-the-transact.patch
 Patch0005:      0005-update-helper-also-add-user-reexec-verb.patch
 
+Patch0006:      https://github.com/systemd/systemd/pull/20695.patch
 
 # Downstream-only patches (5000–9999)
 # https://bugzilla.redhat.com/show_bug.cgi?id=1738828