Introduce dev_change_proto_down_generic, a generic ndo_change_proto_down
implementation, which sets the netdev carrier state according to proto_down.
This adds the ability to set protodown on vxlan and macvlan devices in a
generic way for use by control protocols like VRRPD.
Signed-off-by: Andy Roulin <arou...@cumulusnetworks.com>
Acked-by: Roopa Prabhu <ro...@cumulusnetworks.com>
---
include/linux/netdevice.h | 1 +
net/core/dev.c | 19 +++++++++++++++++++
2 files changed, 20 insertions(+)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index aab4d9f6613d..9a093fde030d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3663,6 +3663,7 @@ int dev_get_port_parent_id(struct net_device *dev,
struct netdev_phys_item_id *ppid, bool recurse);
bool netdev_port_same_parent_id(struct net_device *a, struct net_device *b);
int dev_change_proto_down(struct net_device *dev, bool proto_down);
+int dev_change_proto_down_generic(struct net_device *dev, bool proto_down);
struct sk_buff *validate_xmit_skb_list(struct sk_buff *skb, struct net_device
*dev, bool *again);
struct sk_buff *dev_hard_start_xmit(struct sk_buff *skb, struct net_device
*dev,
struct netdev_queue *txq, int *ret);
diff --git a/net/core/dev.c b/net/core/dev.c
index a3d13f5e2bfc..e99a870772c1 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -7954,6 +7954,25 @@ int dev_change_proto_down(struct net_device *dev, bool
proto_down)
}
EXPORT_SYMBOL(dev_change_proto_down);
+/**
+ * dev_change_proto_down_generic - generic implementation for
+ * ndo_change_proto_down that sets carrier according to
+ * proto_down.
+ *
+ * @dev: device
+ * @proto_down: new value
+ */
+int dev_change_proto_down_generic(struct net_device *dev, bool proto_down)
+{
+ if (proto_down)
+ netif_carrier_off(dev);
+ else
+ netif_carrier_on(dev);
+ dev->proto_down = proto_down;
+ return 0;
+}
+EXPORT_SYMBOL(dev_change_proto_down_generic);
+
u32 __dev_xdp_query(struct net_device *dev, bpf_op_t bpf_op,
enum bpf_netdev_command cmd)
{
--
2.11.0
