interface: suppress unnecessary device config overrides

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/config.c b/config.c
index 43b9205..4e91e18 100644
--- a/config.c
+++ b/config.c
@@ -136,7 +136,8 @@ config_parse_interface(struct uci_section *s, bool alias)
 	if (blob_len(b.head) == 0)
 		return;
 
-	device_set_config(dev, dev->type, b.head);
+	if (iface->device_config && dev->default_config)
+		device_set_config(dev, dev->type, b.head);
 	return;
 error_free_config:
 	free(config);