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It is extracted from the inner header type, but this type may be absent. In this case, GRE item matching is broken. Check if we have the inner header type before setting it to allow matching on all GRE packets. Fixes: be26e81bfc1c ("net/mlx5: fix GRE protocol type translation") Cc: stable@dpdk.org Signed-off-by: Alexander Kozyrev --- drivers/net/mlx5/mlx5_flow_dv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c index 9d4bd0560c..7bb092ea9f 100644 --- a/drivers/net/mlx5/mlx5_flow_dv.c +++ b/drivers/net/mlx5/mlx5_flow_dv.c @@ -8823,8 +8823,9 @@ flow_dv_translate_item_gre(void *matcher, void *key, protocol_v = rte_be_to_cpu_16(gre_v->protocol); if (!protocol_m) { /* Force next protocol to prevent matchers duplication */ - protocol_m = 0xFFFF; protocol_v = mlx5_translate_tunnel_etypes(pattern_flags); + if (protocol_v) + protocol_m = 0xFFFF; } MLX5_SET(fte_match_set_misc, misc_m, gre_protocol, protocol_m); MLX5_SET(fte_match_set_misc, misc_v, gre_protocol, -- 2.18.2