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authorKa-Cheong Poon <ka-cheong.poon@oracle.com>2020-06-03 06:33:38 -0700
committerJason Gunthorpe <jgg@mellanox.com>2020-06-03 15:48:18 -0300
commitfba97dc7fc76b2c9a909fa0b3786d30a9899f5cf (patch)
treefe46b35f62f890d7f7eb1976927c8166c7db3838 /drivers/infiniband/core/cm.c
parentRDMA/mlx5: Return ECE DC support (diff)
downloadlinux-dev-fba97dc7fc76b2c9a909fa0b3786d30a9899f5cf.tar.xz
linux-dev-fba97dc7fc76b2c9a909fa0b3786d30a9899f5cf.zip
RDMA/cm: Spurious WARNING triggered in cm_destroy_id()
If the cm_id state is IB_CM_REP_SENT when cm_destroy_id() is called, it calls cm_send_rej_locked(). In cm_send_rej_locked(), it calls cm_enter_timewait() and the state is changed to IB_CM_TIMEWAIT. Now back to cm_destroy_id(), it breaks from the switch statement, and the next call is WARN_ON(cm_id->state != IB_CM_IDLE). This triggers a spurious warning. Instead, the code should goto retest after returning from cm_send_rej_locked() to move the state to IDLE. Fixes: 67b3c8dceac6 ("RDMA/cm: Make sure the cm_id is in the IB_CM_IDLE state in destroy") Link: https://lore.kernel.org/r/1591191218-9446-1-git-send-email-ka-cheong.poon@oracle.com Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core/cm.c')
-rw-r--r--drivers/infiniband/core/cm.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 085c146fe400..9ce787e37e22 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -1111,7 +1111,9 @@ retest:
case IB_CM_REP_SENT:
case IB_CM_MRA_REP_RCVD:
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
- /* Fall through */
+ cm_send_rej_locked(cm_id_priv, IB_CM_REJ_CONSUMER_DEFINED, NULL,
+ 0, NULL, 0);
+ goto retest;
case IB_CM_MRA_REQ_SENT:
case IB_CM_REP_RCVD:
case IB_CM_MRA_REP_SENT: