linux-kernel - [PATCH 5.15 091/135] net/mlx5e: Lag, Fix fib

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Message-Id: <20220510130743.021810602@linuxfoundation.org>
Date:   Tue, 10 May 2022 15:07:53 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Vlad Buslov <vladbu@...dia.com>,
        Maor Dickman <maord@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 091/135] net/mlx5e: Lag, Fix fib_info pointer assignment

From: Vlad Buslov <vladbu@...dia.com>

[ Upstream commit a6589155ec9847918e00e7279b8aa6d4c272bea7 ]

Referenced change incorrectly sets single path fib_info even when LAG is
not active. Fix it by moving call to mlx5_lag_fib_set() into conditional
that verifies LAG state.

Fixes: ad11c4f1d8fd ("net/mlx5e: Lag, Only handle events from highest priority multipath entry")
Signed-off-by: Vlad Buslov <vladbu@...dia.com>
Reviewed-by: Maor Dickman <maord@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c b/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
index 8d278c45e7cc..9d50b9c2db5e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
@@ -149,9 +149,9 @@ static void mlx5_lag_fib_route_event(struct mlx5_lag *ldev,
 
 			i++;
 			mlx5_lag_set_port_affinity(ldev, i);
+			mlx5_lag_fib_set(mp, fi);
 		}
 
-		mlx5_lag_fib_set(mp, fi);
 		return;
 	}
 
-- 
2.35.1