From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB

---
 kernel/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_vxlan.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_vxlan.c b/kernel/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_vxlan.c
index 038a0f1..e44281a 100644
--- a/kernel/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_vxlan.c
+++ b/kernel/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_vxlan.c
@@ -88,6 +88,8 @@
 	struct udphdr *udp = (struct udphdr *)(buf);
 	struct vxlanhdr *vxh;
 
+	if (tun_key->tun_flags & TUNNEL_VXLAN_OPT)
+		return -EOPNOTSUPP;
 	vxh = (struct vxlanhdr *)((char *)udp + sizeof(struct udphdr));
 	*ip_proto = IPPROTO_UDP;
 

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