From: Roi Dayan <roid@mellanox.com>
Date: Mon, 13 Nov 2017 18:07:50 +0200
Subject: net/mlx5e: Skip redundant checks when providing NUD lastuse feedback
Patch-mainline: v4.18-rc1
Git-commit: e36d4810f2e98110e2b0de11ffc60f71a0a26805
References: bsc#1103990 FATE#326006

It's redundant to continue the loop if we found one flow whose lastuse value
being newer than the last one we reported, since this is enough for us to
trigger a NUD update (neigh_event_send()).

Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -982,6 +982,8 @@ void mlx5e_tc_update_neigh_used_value(st
 				}
 			}
 		}
+		if (neigh_used)
+			break;
 	}
 
 	if (neigh_used) {