net/mlx5e: CT: Allow header rewrite of 5-tuple and ct clear action

With ct clear we don't jump to the ct tables, so header rewrite
of 5-tuple can be done in place (and not moved to after the CT action).

Check for ct clear action, and if so, allow 5-tuple header
rewrite.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

@@ -3191,13 +3191,14 @@ static bool actions_match_supported(struct mlx5e_priv *priv,
 				    struct mlx5e_tc_flow *flow,
 				    struct netlink_ext_ack *extack)
 {
-	bool ct_flow;
+	bool ct_flow = false, ct_clear = false;
 	u32 actions;
 
-	ct_flow = flow_flag_test(flow, CT);
 	if (mlx5e_is_eswitch_flow(flow)) {
 		actions = flow->esw_attr->action;
-
+		ct_clear = flow->esw_attr->ct_attr.ct_action &
+			   TCA_CT_ACT_CLEAR;
+		ct_flow = flow_flag_test(flow, CT) && !ct_clear;
 		if (flow->esw_attr->split_count && ct_flow) {
 			/* All registers used by ct are cleared when using
 			 * split rules.