netdev - [PATCH v2 net-next 6/7] mlx5: Fail attempts to use routes with nexthop objects

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Message-Id: <20190603040817.4825-7-dsahern@kernel.org>
Date:   Sun,  2 Jun 2019 21:08:16 -0700
From:   David Ahern <dsahern@...nel.org>
To:     davem@...emloft.net, netdev@...r.kernel.org
Cc:     idosch@...lanox.com, saeedm@...lanox.com, kafai@...com,
        weiwan@...gle.com, David Ahern <dsahern@...il.com>
Subject: [PATCH v2 net-next 6/7] mlx5: Fail attempts to use routes with nexthop objects

From: David Ahern <dsahern@...il.com>

Fail attempts to use nexthop objects with routes until support can be
properly added.

Signed-off-by: David Ahern <dsahern@...il.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c b/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
index 2cbfaa8da7fc..e69766393990 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
@@ -262,6 +262,10 @@ static int mlx5_lag_fib_event(struct notifier_block *nb,
 		fen_info = container_of(info, struct fib_entry_notifier_info,
 					info);
 		fi = fen_info->fi;
+		if (fi->nh) {
+			NL_SET_ERR_MSG_MOD(info->extack, "IPv4 route with nexthop objects is not supported");
+			return notifier_from_errno(-EINVAL);
+		}
 		fib_dev = fib_info_nh(fen_info->fi, 0)->fib_nh_dev;
 		if (fib_dev != ldev->pf[0].netdev &&
 		    fib_dev != ldev->pf[1].netdev) {
-- 
2.11.0