commit 0b59d4a372aa266caa75f3b6a253b8f5aeaf3802
Author: Mingming Cao <mmc@linux.vnet.ibm.com>
Date:   Mon Mar 1 19:34:29 2021 -0800

    hcnmgr: Avoid cleanup of bond interface at boot time when no HNV exists
    
    At boot time, hcn scans the device tree and discovers if there was a new
    HNV being added while lpar was inactive. It also cleans up the old hnv
    interfaces. This patch avoids cleaning up bonding interface when no HNV
    network devices exists.
    
    Signed-off-by: Mingming Cao <mmc@linux.vnet.ibm.com>
    [tyreld: fixup commit log]
    Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>

diff --git a/scripts/hcnmgr b/scripts/hcnmgr
index a76505e..c95edba 100644
--- a/scripts/hcnmgr
+++ b/scripts/hcnmgr
@@ -575,7 +575,13 @@ scanhcn() {
 		done
 	fi
 
+	if [ ${HcnIds[@]} -eq 0 ]; then
+		hcnlog DEBUG "scanhcn: scan for hybrid virtual network finished"
+		return $E_SUCCESS
+	fi
+
 	# Next clean up dead connections left from orgitinal LPAR after inactive miration
+	# Only do this when the HNV ID array is not empty
 
 	# list of all HCN ids
 	ids="${HcnIds[*]}"