[PATCH 4.14 14/48] net/mlx5e: Dont allow aRFS for encapsulated packets

[Greg Kroah-Hartman]

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eran Ben Elisha <era...@mellanox.com>

[ Upstream commit d2e1c57bcf9a07cbb67f30ecf238f298799bce1c ]

Driver is yet to support aRFS for encapsulated packets, return early
error in such case.

Fixes: 18c908e477dc ("net/mlx5e: Add accelerated RFS support")
Signed-off-by: Eran Ben Elisha <era...@mellanox.com>
Reviewed-by: Tariq Toukan <tar...@mellanox.com>
Signed-off-by: Saeed Mahameed <sae...@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
@@ -711,6 +711,9 @@ int mlx5e_rx_flow_steer(struct net_devic
            skb->protocol != htons(ETH_P_IPV6))
                return -EPROTONOSUPPORT;
 
+       if (skb->encapsulation)
+               return -EPROTONOSUPPORT;
+
        arfs_t = arfs_get_table(arfs, arfs_get_ip_proto(skb), skb->protocol);
        if (!arfs_t)
                return -EPROTONOSUPPORT;