From 897faf08d9f205bc12eb4ea00837b19d77d3605c Mon Sep 17 00:00:00 2001
From: Tobias Waldekranz <tobias@waldekranz.com>
Date: Fri, 17 May 2024 14:36:06 +0000
Subject: [PATCH] qemu: Fix off-by-one in topology generation

When interface naming switched to use 1-based indices instead of
0-based, the topology generation was overlooked thus breaking tests
against a `make run` instance.

Bring everything back in sync.
---
 board/common/qemu/qemu.sh | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/board/common/qemu/qemu.sh b/board/common/qemu/qemu.sh
index 8ad76eae..3b005177 100755
--- a/board/common/qemu/qemu.sh
+++ b/board/common/qemu/qemu.sh
@@ -312,10 +312,10 @@ generate_dot()
 {
     [ "$CONFIG_QEMU_NET_TAP" = "y" ] || return
 
-    hostports="<qtap0> qtap0"
-    targetports="<e0> e0"
-    edges="host:qtap0 -- target:e0 [kind=mgmt];"
-    for tap in $(seq 1 $(($CONFIG_QEMU_NET_TAP_N - 1))); do
+    hostports="<qtap1> qtap1"
+    targetports="<e1> e1"
+    edges="host:qtap1 -- target:e1 [kind=mgmt];"
+    for tap in $(seq 2 $(($CONFIG_QEMU_NET_TAP_N - 1))); do
 	hostports="$hostports | <qtap$tap> qtap$tap "
 	targetports="$targetports | <e$tap> e$tap "
 	edges="$edges host:qtap$tap -- target:e$tap;"