On 03/05/2026 10:35, Danielle Ratson wrote:
Add internal flags for the neigh_forward_grat feature:
- BR_NEIGH_FORWARD_GRAT: Port-level flag
- BR_VLFLAG_NEIGH_FORWARD_GRAT_ENABLED: Per-VLAN flag
These will be used to control whether gratuitous ARP and unsolicited NA
packets are forwarded when neighbor suppression is enabled.
Signed-off-by: Danielle Ratson <[email protected]>
Reviewed-by: Petr Machata <[email protected]>
Reviewed-by: Ido Schimmel <[email protected]>
---
include/linux/if_bridge.h | 1 +
net/bridge/br_private.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index c5fe3b2a53e8..ec9ffea1e46e 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -61,6 +61,7 @@ struct br_ip_list {
#define BR_PORT_LOCKED BIT(21)
#define BR_PORT_MAB BIT(22)
#define BR_NEIGH_VLAN_SUPPRESS BIT(23)
+#define BR_NEIGH_FORWARD_GRAT BIT(24)
#define BR_DEFAULT_AGEING_TIME (300 * HZ)
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 31e317a3529c..677cd5d68dc7 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -187,6 +187,7 @@ enum {
BR_VLFLAG_GLOBAL_MCAST_ENABLED = BIT(3),
BR_VLFLAG_NEIGH_SUPPRESS_ENABLED = BIT(4),
BR_VLFLAG_TAGGING_BY_SWITCHDEV = BIT(5),
+ BR_VLFLAG_NEIGH_FORWARD_GRAT_ENABLED = BIT(6),
};
/**
Acked-by: Nikolay Aleksandrov <[email protected]>
