From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 17 Nov 2015 14:05:01 +0000 (+0100)
Subject: device: preserve orig_settings flags for querying device status
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=5a0328c7b039a90e988aaab8e03eb8ce5508d62b;p=project%2Fnetifd.git

device: preserve orig_settings flags for querying device status

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

diff --git a/device.c b/device.c
index a29c981..67e9d9a 100644
--- a/device.c
+++ b/device.c
@@ -174,7 +174,7 @@ device_merge_settings(struct device *dev, struct device_settings *n)
 		s->dadtransmits : os->dadtransmits;
 	n->multicast_to_unicast = s->multicast_to_unicast;
 	n->multicast_router = s->multicast_router;
-	n->flags = s->flags | os->flags;
+	n->flags = s->flags | os->flags | os->valid_flags;
 }
 
 void
diff --git a/device.h b/device.h
index 4ff335d..a6c131a 100644
--- a/device.h
+++ b/device.h
@@ -128,6 +128,7 @@ struct device_user {
 
 struct device_settings {
 	unsigned int flags;
+	unsigned int valid_flags;
 	unsigned int mtu;
 	unsigned int mtu6;
 	unsigned int txqueuelen;
diff --git a/system-linux.c b/system-linux.c
index 4ccc9d2..b190ec6 100644
--- a/system-linux.c
+++ b/system-linux.c
@@ -1225,6 +1225,7 @@ int system_if_up(struct device *dev)
 {
 	system_if_get_settings(dev, &dev->orig_settings);
 	/* Only keep orig settings based on what needs to be set */
+	dev->orig_settings.valid_flags = dev->orig_settings.flags;
 	dev->orig_settings.flags &= dev->settings.flags;
 	system_if_apply_settings(dev, &dev->settings, dev->settings.flags);
 	return system_if_flags(dev->ifname, IFF_UP, 0);