From f4e9ea879f38bea92069e9397028caa5d81e5aee Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Sat, 17 Sep 2022 23:05:39 +0200
Subject: [PATCH] fix(network): don't use same ifname multiple times

If multiple ibft interfaces exist, set_ifname() may reuse the same
name (usually "ibft0"), because it's usually called cmdline time,
when no interfaces exist in sysfs yet. Remember the number used
set and don't use it again.

Reference:https://github.com/dracutdevs/dracut/commit/f4e9ea879f38bea92069e9397028caa5d81e5aee
Conflict:NA
---
 modules.d/40network/net-lib.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules.d/40network/net-lib.sh b/modules.d/40network/net-lib.sh
index a294a390..8b876926 100755
--- a/modules.d/40network/net-lib.sh
+++ b/modules.d/40network/net-lib.sh
@@ -222,6 +222,7 @@ set_ifname() {
     for n in $(getargs ifname=); do
         strstr "$n" "$mac" && echo "${n%%:*}" && return
     done
+    [ ! -f "/tmp/set_ifname_$name" ] || read -r num < "/tmp/set_ifname_$name"
     # otherwise, pick a new name and use that
     while :; do
         num=$((num + 1))
@@ -232,6 +233,7 @@ set_ifname() {
         break
     done
     echo "ifname=$name$num:$mac" >> /etc/cmdline.d/45-ifname.conf
+    echo "$num" > "/tmp/set_ifname_$name"
     echo "$name$num"
 }
 
-- 
2.23.0