From: Adham Faris <afaris@nvidia.com>
Date: Mon, 8 May 2023 11:27:48 +0000 (+0300)
Subject: net/mlx5e: aRFS, Warn if aRFS table does not exist for aRFS rule
X-Git-Tag: v6.6.7~2079^2~49^2~12
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7653d80672455658ea106a6ba1bcabfd7a9c3917;p=platform%2Fkernel%2Flinux-starfive.git

net/mlx5e: aRFS, Warn if aRFS table does not exist for aRFS rule

aRFS tables should be allocated and exist in advance. Driver shouldn't
reach a point where it tries to add aRFS rule to table that does not
exist.

Add warning if driver encounters such situation.

Signed-off-by: Adham Faris <afaris@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
index 67d8b19..e8b0acf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
@@ -519,6 +519,8 @@ static struct mlx5_flow_handle *arfs_add_rule(struct mlx5e_priv *priv,
 		 ntohs(tuple->etype));
 	arfs_table = arfs_get_table(arfs, tuple->ip_proto, tuple->etype);
 	if (!arfs_table) {
+		WARN_ONCE(1, "arfs table does not exist for etype %u and ip_proto %u\n",
+			  tuple->etype, tuple->ip_proto);
 		err = -EINVAL;
 		goto out;
 	}