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RDMA/cm: Remove return code from add_cm_id_to_port_list
This cannot happen, all callers pass in one of the two pointers. Use a WARN_ON guard instead. Link: https://lore.kernel.org/r/20200506074701.9775-3-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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@ -474,24 +474,19 @@ static int cm_init_av_for_response(struct cm_port *port, struct ib_wc *wc,
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grh, &av->ah_attr);
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}
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static int add_cm_id_to_port_list(struct cm_id_private *cm_id_priv,
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struct cm_av *av,
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struct cm_port *port)
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static void add_cm_id_to_port_list(struct cm_id_private *cm_id_priv,
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struct cm_av *av, struct cm_port *port)
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{
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unsigned long flags;
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int ret = 0;
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spin_lock_irqsave(&cm.lock, flags);
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if (&cm_id_priv->av == av)
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list_add_tail(&cm_id_priv->prim_list, &port->cm_priv_prim_list);
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else if (&cm_id_priv->alt_av == av)
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list_add_tail(&cm_id_priv->altr_list, &port->cm_priv_altr_list);
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else
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ret = -EINVAL;
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WARN_ON(true);
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spin_unlock_irqrestore(&cm.lock, flags);
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return ret;
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}
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static struct cm_port *
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@ -572,12 +567,7 @@ static int cm_init_av_by_path(struct sa_path_rec *path,
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return ret;
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av->timeout = path->packet_life_time + 1;
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ret = add_cm_id_to_port_list(cm_id_priv, av, port);
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if (ret) {
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rdma_destroy_ah_attr(&new_ah_attr);
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return ret;
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}
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add_cm_id_to_port_list(cm_id_priv, av, port);
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rdma_move_ah_attr(&av->ah_attr, &new_ah_attr);
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return 0;
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}
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