From 3a28ccb9dd47d1b6f64c64a94c958a968299aa1d Mon Sep 17 00:00:00 2001 From: Danielle Ratson Date: Mon, 11 May 2026 09:59:32 +0300 Subject: [PATCH] bridge: Add internal flags for neigh_forward_grat 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. Reviewed-by: Petr Machata Reviewed-by: Ido Schimmel Signed-off-by: Danielle Ratson Acked-by: Nikolay Aleksandrov Link: https://patch.msgid.link/20260511065936.4173106-3-danieller@nvidia.com Signed-off-by: Paolo Abeni --- 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 bed1b1d9b282..3bc15978a8df 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -183,6 +183,7 @@ 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), }; /**