Hello Roi Dayan,
The patch 430e2d5e2a98: "net/mlx5: E-Switch, Move send to vport meta
rule creation" from Jul 18, 2022, leads to the following Smatch
static checker warning:
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c:489 mlx5e_rep_add_meta_tunnel_rule()
error: uninitialized symbol 'err'.
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
466 static int
467 mlx5e_rep_add_meta_tunnel_rule(struct mlx5e_priv *priv)
468 {
469 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
470 struct mlx5e_rep_priv *rpriv = priv->ppriv;
471 struct mlx5_eswitch_rep *rep = rpriv->rep;
472 struct mlx5_flow_handle *flow_rule;
473 struct mlx5_flow_group *g;
474 int err;
475
476 g = esw->fdb_table.offloads.send_to_vport_meta_grp;
477 if (!g)
478 return 0;
479
480 flow_rule = mlx5_eswitch_add_send_to_vport_meta_rule(esw, rep->vport);
481 if (IS_ERR(flow_rule)) {
482 err = PTR_ERR(flow_rule);
483 goto out;
484 }
485
486 rpriv->send_to_vport_meta_rule = flow_rule;
487
488 out:
--> 489 return err;
"err" not initialized on success path. "goto out;" is 100% suck.
Forgot to set the error code is the canonical bug for do-nothing gotos.
490 }
regards,
dan carpenter
