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RDMA/cm: Remove return code from add_cm_id_to_port_list

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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>
This commit is contained in:
Jason Gunthorpe 2020-05-06 10:46:53 +03:00
parent f8f2a576cb
commit d3552fb65d
1 changed files with 4 additions and 14 deletions
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18
drivers/infiniband/core/cm.c
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@ -474,24 +474,19 @@ static int cm_init_av_for_response(struct cm_port *port, struct ib_wc *wc,
grh, &av->ah_attr);
}
static int add_cm_id_to_port_list(struct cm_id_private *cm_id_priv,
struct cm_av *av,
struct cm_port *port)
static void add_cm_id_to_port_list(struct cm_id_private *cm_id_priv,
struct cm_av *av, struct cm_port *port)
{
unsigned long flags;
int ret = 0;
spin_lock_irqsave(&cm.lock, flags);
if (&cm_id_priv->av == av)
list_add_tail(&cm_id_priv->prim_list, &port->cm_priv_prim_list);
else if (&cm_id_priv->alt_av == av)
list_add_tail(&cm_id_priv->altr_list, &port->cm_priv_altr_list);
else
ret = -EINVAL;
WARN_ON(true);
spin_unlock_irqrestore(&cm.lock, flags);
return ret;
}
static struct cm_port *
@ -572,12 +567,7 @@ static int cm_init_av_by_path(struct sa_path_rec *path,
return ret;
av->timeout = path->packet_life_time + 1;
ret = add_cm_id_to_port_list(cm_id_priv, av, port);
if (ret) {
rdma_destroy_ah_attr(&new_ah_attr);
return ret;
}
add_cm_id_to_port_list(cm_id_priv, av, port);
rdma_move_ah_attr(&av->ah_attr, &new_ah_attr);
return 0;
}