From ef26ed3092a0a76e1fc54343eaed789088718104 Mon Sep 17 00:00:00 2001
From: Thomas Haller <thaller@redhat.com>
Date: Tue, 15 Sep 2020 16:00:16 +0200
Subject: [PATCH] l3cfg: fix handling of mtu during nm_l3_config_data_merge()

Fixes: 25d404dadb04 ('l3cfg: add more API to NML3ConfigData')
---
 src/nm-l3-config-data.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nm-l3-config-data.c b/src/nm-l3-config-data.c
index f5f8d8d0f3..8bae0693bb 100644
--- a/src/nm-l3-config-data.c
+++ b/src/nm-l3-config-data.c
@@ -2282,7 +2282,7 @@ nm_l3_config_data_merge (NML3ConfigData *self,
 	if (self->ip6_privacy == NM_SETTING_IP6_CONFIG_PRIVACY_UNKNOWN)
 		self->ip6_privacy = src->ip6_privacy;
 
-	if (self->mtu != 0u)
+	if (self->mtu == 0u)
 		self->mtu = src->mtu;
 
 	/* self->source does not get merged. */